Market prices, Valuation Principle, Net present Value, interest rates, Essay - 1

Market prices, Valuation Principle, Net present Value, interest rates, and bonds - Essay Example When a person decides to invest in the stock market the investor has to be willing to accept risk. Risk can be defined as the possibility that the actual return on an investment will be different than the expected return (Thefreedictionary, 2011). There are two types of risks: systematic and unsystematic risk. Systematic risk refers to risk that affects the entire marketplace, while unsystematic risk is risk that is related to a specific industry. Investors have to accept systematic risk because it cannot be manage by the investor. Unsystematic risk can be managed by the investor. For instance if the investor has a stock from an industry that faces major risks the investor can sell off that stock to eliminated the unsystematic risk. The expected return of a portfolio is the weighted average of the expected returns of the individual stocks in the portfolio. One would think based on that logic that the portfolio risk would be equal to the sum of the risk of the individual securities, b ut it is not. Typically the portfolio risk is smaller than the weighted average of the stock’s variances. Sometimes the risks of different stocks in a portfolio moved in opposite direction which canceled each other out forming a riskless portfolio. The measure of the degree of the relationship between the variables is called the correlation coefficient (Besley & Brigham, 2000).

Major American Political Ideology Essay Example | Topics and Well Written Essays - 500 words

Major American Political Ideology - Essay Example This paper would explore these two ideologies. Fundamentally, conservatism and liberalism differ in issues of freedom and responsibility. American conservatism is derived from the idea that all human beings share an equal nature, an ability to make decisions based upon a common-sense morality while liberalism, at its core, denies that such a common-sense morality exists and, even is such a morality were to exist, doubts the average person’s ability to understand it. (Janiskee and Masugi p. 30) This difference in ideology is demonstrated in the following analogy: Conservatives in America maintains the position that conserves the tradition of the American founding and the purposes and objectives of the Founding Fathers for the establishment of the country. American liberal takes the opposite direction by asserting that such traditions are restrictive and, therefore, the nation need to be liberated from them. Presently, the two parties that fight each other every four years in the American presidential elections are the Republicans and Democrats. The former is seen to be identified with conservatism while the form with liberalism. The two parties derive their ideologies to two fundamentally different views of human nature that is why each ideology calls for different kinds of government response to different issues. For instance, conservatives are more inclined to be against gun control but favor the death penalty while liberals want the reverse: gun control and no death penalty. An interesting aspect in the dynamics of American conservatism and liberalism is that they could assume an entirely different attitude towards certain issue compared to conservatives and liberals in Europe. A demonstration of this is how the conservatives and liberals in America want to address the question on how far should the free market be left alone: how far

Anopheles Stephensi Tissue-restricted Expression

Anopheles Stephensi Tissue-restricted Expression Tissue-restricted expression and alternative splicing revealed by transcriptome profiling of Anopheles stephensi Sreelakshmi K. Sreenivasamurthy1,2, Anil Madugundu1,3, Arun Kumar Patil1,4,5, Gourav Dey1,2, Ajeet Kumar Mohanty6, Manish Kumar1,2, Krishna Patel1, Charles Wang7, Ashwani Kumar6, Akhilesh Pandey1,8,9,10,11, T. S. Keshava Prasad1,2,4,* Abstract The sequencing of Anopheles stephensi, a major malaria vector in Asia has led to increased research activity to understand the vectorial ability of this mosquito species. However, tissue-based gene expression profiles of the annotated genes remain to be understood. In this study, we summarize the transcriptomic profile of four important organs of a female imago Midgut, Malpighian tubules, Fat body and Ovary. We identified over 21,000 transcripts in total, from all the four tissues corresponding to about 12,000 gene loci. This study provides an account of the tissue-based expression profiles of majority of annotated transcripts in An. stephensi genome and alternative splicing in these tissues. Understanding of the transcript expression and gene function at the tissue level would immensely help in enhancing our knowledge of this important vector and decipher the putative role of these mosquito tissues, providing the basis of selection of candidates for future studies on vectorial abil ity. Keywords: Mosquito, RNA-seq, differential expression, lncRNAs Introduction Malaria remains as one of the most debilitating mosquito-borne diseases till date. According to WHO World Malaria Report in 2016, there were ~212 million malaria cases in the year 2015, resulting in an estimated death of about 429,000 individuals globally. Most of these cases (90%) is in the African region with about 7% incidence in South East Asia. About 50% of the Asian malaria incidence and deaths has been in India1. The number of deaths attributed to malaria in India has been reported to be higher than the WHO estimates2. However, the latest updates on the cases and deaths reported in India has been limited to the National Vector Borne Disease Control Programme (NVBDCP), according to which there has been about a million cases of malaria reported in the year 2014 [http://www.nvbdcp.gov.in/malaria3.html]. Out of the 41 different Anopheline species reported as significant vectors for transmission of human malaria, An. stephensi is an important vector in India and South Asia3,4. Bein g the major urban vector, it is second most prevalent in India. It has been reported all over the country except the north-eastern states of Sikkim, Arunachal Pradesh, Mizoram, Nagaland, Manipur and Tripura5. Sequencing of the Anopheles mosquito genomes have resulted in a spurt of activity in the study of Anopheles mosquitoes. PubMed search with the keyword Anopheles resulted in 14,576 publications, majority of which have been after the year 2000 as shown in the Figure 1A. Majority of the studies post-genome sequencing has been focussed towards understanding the role of various genes and development of numerous methods to regulate their expression.   The overall aim of the community is to embark on a feasible means to control the spread of infectious organisms either by controlling the vector/mosquito population or by curbing or reducing their vectorial ability. In this regards, numerous studies have already been performed on the recently sequenced malarial vectors6-9. However, most of the studies are focussed on previously studied molecules with very few studies focussing on new target molecules. This could probably be due to the lack of reliable data owing to incomplete genome as semblies and annotations in the identification of such targets. We have tried to bridge this gap with a huge effort of supplementing the current efforts using an integrated approach of utilizing proteomic and transcriptomic data in the genome annotation and assembly in an array of organisms through our previous studies10-12. Although transcriptomic data played a major role in refining the annotations and assembly of the genomes in the previous study, the tissue-based expression profiles were not focussed on. The tissue-based expression profiles of the identified transcripts are the focus of this study. Tissue-based expression profiling in An. stephensi has been limited to salivary glands13, ovaries14,15, testes16 and hemocytes17 with most the studies being done on whole mosquitoes14,18,19. However, even with the availability of transcriptome data from ovaries, there are several issues. The study was mainly focused on identification of transcripts expressed in developmental stages and is of low throughput14. The other tissue-based expression studies published including one cDNA-based study of the salivary glands and another being cDNA sequencing of the transcripts from hemocytes, both tissues that were not included in our study. The focus of our study is on the Midgut, ovary, Malpighian tubule and fat body of a female An. stephensi imago. These tissues, along with the salivary glands play a very important role in the blood meal digestion and thus important for the life cycle of the mosquito vector and plasmodium species. However, we restrict ourselves to understand the molecular dif ference between these mosquito tissues in the uninfected sugar-fed state of the mosquito which we believe will provide the much-needed basic understanding of the role played by these tissues. To this extent, we performed comparative and deep transcriptomic analysis of these four tissues. Materials and Methods RNA isolation and sequencing Adult female An. stephensi mosquitoes grown at the NIMR field station, Goa, were dissected to obtain midgut, Malpighian tubules, ovaries and fat body. These dissected tissues were stored in RNAlater to preserve the RNA quality till RNA extraction. The RNA isolation and sequencing was performed as described earlier10,11. Briefly, the RNA isolated using Qiagen miRNeasy kit was used for the preparation of indexed RNA-seq libraries using TruSeq RNA Sample Preparation Kit v3. The indexed and pooled libraries were sequenced on two lanes (as technical replicates) of Illumina HiScan SQ platform. Read alignment and transcript assembly The raw reads were processed for quality filtration to remove ambiguous bases present due to the sequencing errors at the 3 end of the reads. Base quality filter of >20 was considered as good. FastQC (Version 0.10.1) tool was used to determine the quality of the raw data and poor quality calls with Phred score An. stephensi genome build (ASTEI2) downloaded from VectorBase (https://www.vectorbase.org/) using HISAT (Version 2.1.0)20 aligner with the default parameters. HiSAT2 was supplied with known annotations and Gene Transfer File (GTF), AsteI2.2 from VectorBase. The alignment of reads from each lane for each tissue was carried out individually against the reference genome resulting in eight different Binary Alignment Map (BAM) files. The .bam files for each tissue were then merged to obtain merged .bam files, one for each tissue. The aligned reads were assembled against the AsteI2.2 gene annotations, as reference, using the StringTie (version 1.2.1) assembler21. Assembled transcrip ts were further quantified and annotated into known and novel categories using the gffcompare in StringTie package as described earlier22. To determine novel transcripts as a transcript GTF file and all the StringTie assemblies were merged using StringTie-merge option. Novel isoforms and intergenic transcripts were obtained by comparing the merged StringTie assemblies of all the four tissues to the annotated transcripts from VectorBase using gffcompare. Coding potential of the identified transcripts was predicted by the use of the Coding Potential Assessment Tool (CPAT)23. Transcripts which were >200 bp in length with a CPAT score threshold of Identification of differentially expressed genes across four tissues Merged GTF file from StringTie was annotated in to different classes of transcripts using gffcompare with respect to the VectorBase annotations. Expression levels of transcripts as determined by the StringTie assembler were compared across tissues. The expression information from individual lanes were used as technical replicates for each tissue. Differential expression was computed using Cuffdiff after normalizing the data across samples by calculating Fragments per Kilobase of exon per Million Fragments Mapped (FPKM)24. The R-package version 2.16.0 of cummeRbund was used for visualization, analysis of RNA-seq data and cluster generation25. An overview of the analysis pipeline is provided in Figure 1B. To identify tissue specific transcripts, we initially filtered transcripts with FPKM value à ¢Ã¢â‚¬ °Ã‚ ¥ 1.0 in at least one among the four tissue types. We then applied the right-tailed t-test to identify the transcripts which are relatively high in abundance in one tissue as again st other tissues. Results and Discussion Transcriptome sequencing of four An. stephensi tissues Midgut, Malpighian tubules, Fat body and Ovary was performed to create a tissue-based expression profile. In total, about 500 million paired-end reads of 100bp were generated from all the four tissues, with about 55 million read pairs per tissue sample from two lanes. The expression levels of transcripts between the replicates and among the tissues were comparable. Figure 2A represents the inter-tissue and intra tissue transcript expression variations in the form of a distance-based heatmap. The variations are minimal between the replicates as expected and increases between the tissues with Ovary and Malpighian tubules being the most different. By following the standard alignment and assembly pipeline using the HiSAT2 and StringTie assembler, we identified a total of about 25,000 transcripts. However, after the initial filtering for the FPKM values (à ¢Ã¢â‚¬ °Ã‚ ¥ 0.1) only 21,500 transcripts were retained. The expression of th ese transcripts was comparable across tissues with the median FPKM value ranging about 2 to 3 in all the tissues as represented by the box plot in Figure 2B. Figure 2C and 2D provides the general distribution of the length and the FPKM values of the transcript assemblies across the four tissues. About 60% of the transcript assemblies were found to have FPKM value of 1 and above, while the average length of majority of the transcripts tend to be in the range of 1000 to 3000 bp. This shows an expected trend of a reliable depth and absence of any skewing. The Transcript assemblies were classified into different classes using gffcompare. However, in order to avoid over interpretation of the data we have only focused our findings on the known =, alternate j and intergenic unknown u class of the transcript assemblies for our analysis. In our analysis, we noticed that almost equivalent number of transcript assemblies were classified under the known (=) and the alternate (j) categories. In fact, the transcript assemblies in the j category exceeded the number of known transcript assemblies. A deeper look in to this matter showed us that due to the poorly annotated gene models (which is mostly based on the prediction program) for this strain, the untranslated regions (UTRs) of the predicted transcript models in the current annotation is missed. As a result, the transcript assemblies with the extension of the exonic regions supported by the reads, probably into the UTRs were classified as alternate transcripts. We are working closely with the VectorBase to improve the annotations of these predicted gene and transcript models for the An. stephensi Indian strain. Tissue restricted transcripts Majority of the transcripts identified (about 87%) were expressed largely at similar levels in all the four tissues, the remaining 15% of the transcripts identified seemed to have more of a tissue restricted expression. Figure 3 details the distribution of the transcript expression (expressed with FPKM values à ¢Ã¢â‚¬ °Ã‚ ¥ 0.1) among the previously annotated transcripts (Figure 3A), alternative isoforms (Figure 3B) and novel previously unannotated intergenic transcripts (Figure 3C). The majority of the transcripts in each of these groups are expressed in all the four tissues with only about 3 4% of the transcripts showing tissue restricted expression. Among the known/annotated transcripts identified, 241 were found to be exclusive to Midgut, 221 exclusive to Malpighian tubules, 479 transcripts in Ovary and 436 in Fat body. The distribution of tissue specific transcripts was similar in the alternative isoforms and novel intergenic transcripts of these four tissues with 61, 67, 146 and 77 isoforms exclusively identified in Midgut, Malpighian tubules, Ovary and Fat body. In general, there was a clear bias in the number of transcripts and transcript isoforms that were common between midgut and Malpighian tubules and similarly between fat body and ovary than amongst the others. The diversity of the transcripts identified was found to be maximal in Ovary with most the transcripts being identified in this tissue, followed by fat body. Midgut had the minimal number of transcripts identified, however, the expression levels of these transcripts, in terms of FPKM, were higher than that of other tissues. Novel splice variants and their expression Apart from the known/annotated transcripts, we identified a plethora of spliced (exon-exon) reads that were not previously annotated. Assembly of such reads along with the intra exonic reads led to the identification of >8500 transcripts that were spliced differently. These alternatively spliced isoforms represent the complexity of the transcript forms and their expression in the four tissues. A summary of the differential expression of these alternate isoforms is provided in Figure 3B. As in the case of annotated transcripts, most of the alternatively spliced forms were also expressed in all the four tissues. Only about 1-2% of the total alternate transcripts isoforms were found to have tissue restricted expression. Transcript isoforms were enriched maximally in Ovaries compared to any other tissue. With 146 isoforms restricted to ovaries, it showed the highest variation in the spliced forms among the four tissues although the FPKM values for these were comparatively lower than that of other tissues. Fat body had the least representation of the alternate isoforms. The splice variants identified included examples of intron retention, alternative 3 or 5 donor and acceptor sites, exon skipping and others. Different spliced forms were expressed in different tissues. An example of transcript expressed in different tissues is provided in Figure 4. The annotated gene ASTEI04270 belongs to the Gelsolin/Vilin/fragmin superfamily, coding for a single transcript isoform according to the VectorBase annotation. However, we identified six different isoforms for the gene. The original protein coded by the annotated transcript with a signal peptide and nine gelsolin-like domains that was highly expressed in Fat body followed by Malpighian tubules. The alternative isoforms included a shorter transcript encoded by the first 3 exons (ANSTF.3986.4), which retained only three of the nine gelsolin-like domains along with the signal peptide sequence that was highly expressed in fat body and least expression in ovaries. The other 4 isoforms encoding the exons from fo urth exon consists of 4 gelsolin-like domains. Isoforms ANSTF.3986.1 and ANSTF.3986.2 were highly expressed in midgut followed by Malpighian tubules but not identified in fat body and ovaries. Whereas, isoforms ANSTF.3986.5 and ANSTF.3986.6 were significantly expressed only in midgut. Proteins encoded by this superfamily typically consists of three to six gelsolin-like domains (GEL), with each domain playing a critical role in actin filament remodeling26,27. Novel intergenic transcripts In addition to annotated and alternate spliced forms of the transcripts in the known/annotated gene loci, we found additional loci in the genome of An. stephensi Indian strain. The reads mapping to these unannotated regions were processed to assemble putative transcripts that were categorized as novel/unannotated transcripts. We identified about 2700 transcripts with FPKM values above 0.1 in the intergenic regions of the genome that were previously considered to be non-transcribed. The expression of most of these intergenic transcripts were found to be similar in all the four tissues. However, Expression-based clustering and functional correlation Since An. stephensi genome was recently sequenced and is relatively less worked upon, there is limited information on the function of these genes and transcripts. However, Gene Ontology analysis based on their translated protein and the domain structures (Interpro domains) showed that most of the differentially expressed transcripts were found to have expected domains as per the perceived function of these respective tissues. The identified transcripts were segregated into clusters based on their expression levels in the four mosquito tissues. Among the various clusters generated using the cummerbund package, few of the clusters showed clear trends of expression. One of the clusters with about 950 transcripts showed similar expression in all the four tissues. Gene level ontology mapping of these transcripts showed that majority of the transcripts possessed generic domains such as protein, nucleotide and ion binding domains, transmembrane transport, proteolysis, oxidoreductase activity and signal transduction (Figure 5A). Transcripts found to be enriched in the Midgut (170) compared to other tissues were found to have proteolytic, protein binding, hydrolase and peptidase activity. Some of the midgut enriched transcripts were found to be involved in chitin and carbohydrate metabolism (Figure 5B). Transcripts enriched in Malpighian tubules (116) were found to be associated largely with transmembrane transpor tation, oxidation-reduction process, protein and ion binding events. Few of the transcripts were associated with transferase, ligase and lyase activities among other catalytic activities (Figure 5C). Ovary enriched transcripts (241) were associated more with the protein binding, nucleic acid and ATP binding, in addition to those having signaling domains and transport domains associated with intracellular signal transduction processes such as GPCR activity, protein phosphorylation and dimerization. As expected, these transcripts seem to be involved highly in cell cycle processes including DNA replication, microtubule organization, DNA repair and growth factor activities, which are crucial mechanisms for vitellogenesis (Figure 5D). Fat body enriched transcripts (170) were consistent with the role of fat body akin to the vertebrate liver. The transcripts enriched in fat body are associated majorly with transmembrane transportation, oxidation-reduction process, chitin binding and metabo lism, heme-binding and transport, in addition to oxidoreductase activities (Figure 5E). Identification and expression of long non-coding RNAs We compared the list of transcripts identified in our study to the list of transcripts that are annotated as non-coding RNAs in VectorBase. However, we failed to identify any of the annotated non-coding RNAs in our study since the annotated ones are largely rRNAs and other small ncRNAs. Due to the ribosomal RNA depletion employed in our study, we expected no rRNAs to be identified. However, in order to investigate the presence and expression of the long non-coding RNAs in An. stephensi, we assessed the coding potential of all the identified transcripts using the CPAT tool. From this, we identified 4,071 transcripts that satisfied the criteria for the long non-coding RNAs (lncRNAs) (Supplementary Table 2). That is, they were longer than 200 bases in length and were predicted to have a coding potential of Tissues considered in this study play an important role in the life cycle of the female mosquito. They are critical in blood meal digestion, metabolism, vitellogenesis, excretion, immunogenesis, Plasmodium sporogony and reproduction, which are associated with vector physiology, progression and malaria transmission. Mosquito midgut is involved in the initial storage and digestion of the ingested blood. The gut epithelium also provides site for development of oocysts and sporozoites (Sporogony). Blood meal induces pathways such as TOR, which ultimately leads to synthesis of proteins required for egg development. Fat body and ovary are known to be involved in the utilization of the nutrients from blood to enable vitellogenesis. Malpighian tubules are known to play an important role in the mosquito xenobiotics. Fat body cells (trophoblasts) and recently, Malpighian tubules have also been shown to be involved in the immune responses28-31 and is now being considered as targets for mosquito control28,31. Towards this end, we further evaluated the expression of genes previously reported to be involved in the vector-pathogen interactions32 across the four tissues (Table 2). The affordability and accessibility of sequencing-based techniques have resulted in numerous transcriptome-based studies even in An. stephensi14,15,17,19. However, due to the low depth of the other existing studies, no significant comparison could be performed between the transcript expression from our study to that of the other studies. We deciphered the genes reported to be involved in immunity14 and evaluated the expression information for the annotated transcripts and the novel alternate isoforms across the tissues (Supplementary Table 4). Although, there has been a recent study of the cDNAs from hemocytes, we could not compare the genes expressed in their study since hemocytes were not part of our study. Another reason for non-comparison was normalization issues caused by 36bp single end reads in their study, with only 49% of it mapping to the VectorBase assembly. We provide the deepest tissue-based transcriptome profiling for these four organs of An. stephensi (Indian strain), so far. Studies such as ours depicting the transcript variations amongst tissues in its physiological states provide important baseline information. In light of such information, analysis of gene expression data in the context of changes due to blood meal, infection of insecticide resistance might lead to new perspectives and insights. This, in turn, will facilitate the choice of novel targets for vector control and transmission blocking studies and other experiments as evidenced in An. gambiae33. Data Availability The RNA-sequencing data has been submitted to the Sequence Read Archive (SRA) from NCBI and can be accessed using the project accession number SRP043489. Supplementary data Supplementary data are available at www.dnaresearch.oxfordjournal.org. Funding This paper is funded by the joint research project to NIMR and IOB entitled Characterization of Malaria Vector Anopheles stephensi Proteome and Transcriptome (EMR/2014/000444) from the Science and Engineering Research Board (SERB), Government of India. SKS and GD has been supported by the Senior Research Fellowship by University Grants Commission (UGC) and MK was supported by the Council of Scientific and Industrial Research, Government of India during the study. Table 1. Transcript distribution number of transcripts in total, class code-based classification of transcripts in all four tissues and in individual tissues      Ã‚   All 4 tissues Midgut Malpighian tubule Ovary Fat body Total number of transcripts identified 21,500 17,461 18,812 18,616 18,685 Corresponding gene location identified 12,256 10,357 11,107 10,973 11,371 Total number of known/annotated transcripts = 9,722 7,508 7,883 8,001 8,015 Number of alternate isoforms/transcripts j 8,820 7,603 8,232 7,992 8,037 Number of novel transcripts (intergenic) u 2,694 2,136 2,458 2,396 2,398 Figure Legends: Figure 1. A. Graphical representation of the remarkable increase in the number of studies on Anopheles mosquitoes post genomic era. B. Workflow representation of the study pipeline followed. Figure 2. Overall representation of transcript expression. A. HeatMap representation of the Jensen-Shannon (JS) divergence between the different tissues and their technical replicates. B. Bar-chart representation of the tissue-based transcripts and their median expression in the log10(FPKM), showing normalized distribution. C. FPKM distribution curve of the transcripts identified in the four tissues. D. Distribution of transcript length across the four tissues. Figure 3. Venn diagram representation depicting the overlap and the tissue specific expression of the transcripts across the four tissues A. For VectorBase annotated transcripts. B. Distribution of alternate isoforms of transcripts. C. Distribution of novel intergenic transcripts. Figure 4. An example representing the novel spliced forms of the VectorBase annotated gene ASTEI04270. Isoforms identified due various splicing events and their expression across the four tissues. Figure 5. Expression-based transcript clusters and the functional enrichment of the classes of transcripts based on domain and Gene Ontology-based functional annotation. A. Transcripts having similar expression in all four tissues B. Midgut-enriched transcripts C. Transcripts overexpressed in Malpighian tubules D. Transcripts highly expressed in Ovary E. Fat body-enriched transcripts.

Turing Machines And Universes :: essays research papers

<a href="http://www.geocities.com/vaksam/">Sam Vaknin's Psychology, Philosophy, Economics and Foreign Affairs Web Sites In 1936 an American (Alonzo Church) and a Briton (Alan M. Turing) published independently (as is often the coincidence in science) the basics of a new branch in Mathematics (and logic): computability or recursive functions (later to be developed into Automata Theory). The authors confined themselves to dealing with computations which involved â€Å"effective† or â€Å"mechanical† methods for finding results (which could also be expressed as solutions (values) to formulae). These methods were so called because they could, in principle, be performed by simple machines (or human-computers or human-calculators, to use Turing’s unfortunate phrases). The emphasis was on finiteness : a finite number of instructions, a finite number of symbols in each instruction, a finite number of steps to the result. This is why these methods were usable by humans without the aid of an apparatus (with the exception of pencil and paper as memory aids). Moreover: no insight or ingenuity were allowed to â€Å"interfere† or to be part of the solution seeking process. What Church and Turing did was to construct a set of all the functions whose values could be obtained by applying effective or mechanical calculation methods. Turing went further down Church’s road and designed the â€Å"Turing Machine† – a machine which can calculate the values of all the functions whose values can be found using effective or mechanical methods. Thus, the program running the TM (=Turing Machine in the rest of this text) was really an effective or mechanical method. For the initiated readers: Church solved the decision-problem for propositional calculus and Turing proved that there is no solution to the decision problem relating to the predicate calculus. Put more simply, it is possible to â€Å"prove† the truth value (or the theorem status) of an expression in the propositional calculus – but not in the predicate calculus. Later it was shown that many functions (even in number theory itself) were not recursive, meaning that they co uld not be solved by a Turing Machine. No one succeeded to prove that a function must be recursive in order to be effectively calculable. This is (as Post noted) a â€Å"working hypothesis† supported by overwhelming evidence. We don’t know of any effectively calculable function which is not recursive, by designing new TMs from existing ones we can obtain new effectively calculable functions from existing ones and TM computability stars in every attempt to understand effective calculability (or these attempts are reducible or equivalent to TM computable functions).

Marketing Qantas

The report discuss all the crucial information on Qantas Airways Limited required for business and competitor intelligence needs and contain a study of the major internal and external factors affecting Qantas Airways in the form of SWOT and PESTEL analysis as well as a breakdown . And examination of leading product revenue streams of Qantas Airways. Data is supplemented with details on Qantas Airways history, key executives and business description, location and subsidiaries as well as a list of products, services and the latest available statements from Qantas Airways Limited.To undertake the report, primary/qualitative (Qantas Web site) and secondary/quantitative (Internet journals, reports and news) data was collected. The oil market is going through dramatic shifts in regional demand and supply balances. In 2012 the influence of OPEC and strong demand from the Brazilian, Russian, Indian, and Chinese (BRIC) economies prevented a decline in price (IATA, 2014, p. 12). This can be se en as a major factor affecting Qantas International’s profitability. With socio political factors in Middle East and North Africa may have low potential impact on the growth of aviation business.Aviation Industry’s growth was always linked to technology. New developments in this front are gathering pace and will continue to influence future dynamics of the industry. New trends in aircraft technology will continue to influence the delivery. Aviation Industry continues to make progress in the area of environmental protection where new aircraft models are designed to cut back emissions and to improve efficiency. On the legal front, industry continues to achieve harmonized legal framework for aviation industry. 2. Qantas International –Important Macro environmental factors2.  1 Crude Oil PricesAviation fuel process follows trends in crude oil prices. One of the most important macroeconomic factors affecting Qantas International Operations and profitability will be fuel prices. Looking at the latest financial statements (Fig 2) it is obvious that fuel contributes to the expenses in a large scale. Thus any changes in fuel prices are going to affect the bottom-line. As mentioned in the PEST Analysis in the previous section, crude oil prices maintained position preventing a decline in fuel oil prices. Source: Qantas Group Annual Report 2013Fig. 2 2.2Technology Technology will be one of the important macroeconomic factors which will be driving Qantas International’s transformation. Qantas group will continue its investments in new aircraft technology, customer experience technology, training, customer service etc. Emerging technologies like New Distribution capabilities (NDC) are going to transform customer shopping experience. Technology will continue to impact following areas of the business†¢Aircraft Design ( Fuel efficient designs, reduced carbon footprint)†¢Customer Experience †¢Ground Handling†¢Customer shopping e xperience Marketing Qantas The report discuss all the crucial information on Qantas Airways Limited required for business and competitor intelligence needs and contain a study of the major internal and external factors affecting Qantas Airways in the form of SWOT and PESTEL analysis as well as a breakdown . And examination of leading product revenue streams of Qantas Airways. Data is supplemented with details on Qantas Airways history, key executives and business description, location and subsidiaries as well as a list of products, services and the latest available statements from Qantas Airways Limited. To undertake the report, primary/qualitative (Qantas Web site) and secondary/quantitative (Internet journals, reports and news) data was collected. The oil market is going through dramatic shifts in regional demand and supply balances. In 2012 the influence of OPEC and strong demand from the Brazilian, Russian, Indian, and Chinese (BRIC) economies prevented a decline in price (IATA, 2014, p. 12). This can be s een as a major factor affecting Qantas International’s profitability. With socio political factors in Middle East and North Africa may have low potential impact on the growth of aviation business. Aviation Industry’s growth was always linked to technology.New developments in this front are gathering pace and will continue to influence future dynamics of the industry. New trends in aircraft technology will continue to influence the delivery. Aviation Industry continues to make progress in the area of environmental protection where new aircraft models are designed to cut back emissions and to improve efficiency. On the legal front, industry continues to achieve harmonized legal framework for aviation industry.2.Qantas International –Important Macro environmental factors2.1 Crude Oil PricesAviation fuel process follows trends in crude oil prices. One of the most important macroeconomic factors affecting Qantas International Operations and profitability will be fuel prices. Looking at the latest financial statements (Fig 2) it is obvious that fuel contributes to the expenses in a large scale. Thus any changes in fuel prices are going to affect the bottom-line. As mentioned in the PEST Analysis in the previous section, crude oil prices maintained position preventing a decline in fuel oil  prices.Source: Qantas Group Annual Report 2013Technology will be one of the important macroeconomic factors which will be driving Qantas International’s transformation. Qantas group will continue its investments in new aircraft technology, customer experience technology, training, customer service etc. Emerging technologies like New Distribution capabilities (NDC) are going to transform customer shopping experience. Technology will continue to impact following areas of the business†¢Aircraft Design ( Fuel efficient designs, reduced carbon footprint) †¢Customer Experience †¢Ground Handling †¢Customer shopping experience

How does the director Steven Spielberg make ‘Jaws’ a tense and exiting film to watch? Essay

How does the director Steven Spielberg make ‘Jaws’ a tense and exiting film to watch? The film Jaws, directed by Steven Spielberg in 1975, featuring various techniques to create suspense,excitement and fear throughout the whole film. This is done using different types of camera shots and movement, music, and mis-en-scene.Its about when a gigantic great white shark begins to terrorise the residents in small island community of Amity, a police chief, a marine scientist and fisherman set out to stop it. One of the three significant scenes was, The death of Alex Kitner. the scene takes place on a crowded beach.High key lighting is used through out the scene. The camera uses a tracking shot of a young boy as he goes up to his mother and pleads her to let him have another 10 minutes in the sea. The camera then follows him as he goes to get his lilo and this can create suspense since the audience isn’t sure whether the boy will be the shark’s next victim. His swim shorts are red (red being the colour that attracts sharks as well as being symbolic for danger, fear, and blood). The audience is introduced to different possibilities of the shark’s next victim. This can create suspense since we don’t know who it will be. First, there is the man throwing sticks in the water for his dog to catch- both the man and his dog are possible victims since they are near the sea and it may be that the man has to go in the water himself just in case his dog needs helping. Ther e is also the large lady floating in the water. Brody spots a black shiny shape swimming towards the woman; and then we realise that it’s just the top of an old man’s swim hat as he swims through the water. The camera shot is level with the water and large lady, so it may make the audience feel that they’re in the sea too. A character in the film, named Brody, is also at the beach. He watches the different people and seems agitated as he is not sure if the shark will attack. As one of Brody’s friends are talking(close up on friends face, and wide shot on the side of his face) he sees a young woman screaming and splashing about in the water, paying no attention to his friend, he stands up, ready for action, and then realises it was her boyfriend lifting her up from the water. These two false alarms create anticipation for the audience since they expect the attack to happen and it doesn’t. A tracking shot is used as the boy rushes into the water with his yellow lilo, and the man calls for his dog. This implies that something  fearful is about to happen since his dog has gone missing. This creates suspense since the audience does not know why and how the dog is gone; and whether he’ll return or not. A low angle is used as the boy’s legs kick under the water,with something hurdling towards him.The Jaws theme music is used creating suspense and fear as it gets closer leading to the build up of Alex Kitners death.(Non digectic sound used) The attack is seen in the distance and the long shot indicates that the people on the beach are too far away to save the boy. A general panic occurs as people rush out of the water this scene becomes very fast paced. We do not see the shark. Causing a sudden sense of anticipation. During this, Brody realises what is happening and the camera quickly zooms in on his terrified face. The zooming-in camera shot signifies the attack as powerful and large, coming towards him; which reflects back on what the actual shark itself is like. While parents are rush towards the water to get their children Brody still does not enter the water all he does it tell everyone to get out. After the attack is over, a yellow lilo washes up on the shore, soaked with blood. A high angle is used, the colour yellow is used as the symbolic colour for danger and warning throughout the scene. The man who owns the dog is wearing yellow shorts, and his dog has been attacked by the shark. The boy was floating on a yellow lilo, and he became the shark’s second victim.Usually the colour for danger (red or black) and yellow is normally the colour for happiness and sunshine. So already the audience can sense a tone of difference portrayed in this film. Another scene is Hooper and the boat. It takes place in the Amity sea. Low key lighting is used and it is very misty.This is to cause tension and fear as people most vulnerable when it is dark. When Hooper finds Ben Gardeners boat there is no body there, this cause a sense of mystery. So he goes in the water to find him. Hooper then finds a sharks tooth there is a close up on the tooth. So the audience can try and picture how big the shark is .On his way down calm creepy music is played, Steven does this to trick the viewer into thinking nothing will be happen but then Hooper sees a hole and out comes the remains of Ben the camera zooming to Ben’s face to create more fear. Hooper screams in shock.The music becomes much more high pitched. Hooper then gets away in fear of what will happen if he stay in there any  longer. The third and final scene is the climax. This scene takes place in Amity sea, and has a mixture of both high and low key lighting.The boat is sinking this is shown with a long shot. Brody is stuck inside with the shark on its way. As he tries to find an exit the shark breaks through the window and attacks, with is mouth wide open(close up) and then after an extreme close up of its teeth. This done to scare the audience and is very effective. Brody then puts a gas canister in the sharks mouth with then causes it to retreat but no for long. Spielberg does this to give the audience a sense of relief so when the shark attacked again it will be more shocking.The bells ring to show the boat is sinking.(digetic sound).High pitched music begins. Brody climbs up the pole armed. The shark attacks again. He stabs it with a shark pole.(low angle). There is now a close up of the shark trying to bite Brody (high angle) and a long shot of him trying kill it. The shark eats the pole a goes back into the sea. Brody now prepares to kill the shark by shooting at the gas canister in the sharks mouth.The scene is becomes faced paced as the shark heads toward the boat,waiting for the last second Brody finally shoots at the canister creating a mass explosion(wide shot) of the shark pieces. The is done to cause suspense and excitement for the audience, as waiting till the last second to destroy the shark is more fearful and interesting. These were not the only scenes that were tense and exiting, there was the death of Quint. Both high key lighting and low were used. Since Brody went to the back of the boat when the shark attacked he was not killed.Then the shark came from the water (low key lighting) and opened mouth, close up on mouth, to eat them the boat tilted so that Quint would be falling into its mouth. This was done to show that Quint was powerless to make it more cruel and horrifying death. As quint was sliding it became more fast paced and there were cuts between the shark and Quint this was to build suspense. When Quint was bit, the sound of his bones cracking was to add more effect to make this more realistic and ruthless, him shouting(digetic sound also added effect). As the shark swayed him side to side it became more dreadful to watch but this is what made the scene interesting. When he was dead and the shark pulled him down this built the suspense and what made the scene so captivating. I think Jaws was ground breaking and intense it was made in the 19s and is still so popular. The shark theme music was great it had a good plot and there was a good connection between characters. Some of the shots were great. e.g. the zoom shot. I think people might not like Jaws because of its effects as the 21st century prefers what they watch to be HD and the action scene to look extremely realistic (shark to not look fake), also Jaws was the type of movie which did not let see the shark at the beginning to build the suspense but some people don’t like that other classify Jaws a more of a thriller than a horror. Jaws is still poplar today for many reasons- it theme became popular as you could not forget it, the suspense of not knowing how the shark looked and the fact that everyone thought it was destined to fail as when they started making the movie they had not script, no cast and no shark until Steven came†¦

CYP 3.1 1.1 Essay

CYP 3.1 1.1 Essay CYP 3.1 1.1 Essay Tina Scott CYP 3.1 Criteria 1.1 Explain the sequence and rate of each aspect of development from birth – 19 years The key to understanding child development is to look at them as a ‘whole’. The whole child may be looked at under six aspects which are: Physical development Intellectual development Language development Emotional development Social development Spiritual development Each aspect is intricately linked and if one aspect is hampered or neglected in some way this may hinder children in reaching their full potential. PHYSICAL INTELLECTUAL LANGUAGE EMOTIONAL & SOCIAL First Month Gross Motor Skills: lies on his or her back, can lift head by the end of month 1. Fine Motor Skills: turns his or her head towards the light, hands are usually tightly closed, reacts to loud sounds Babies explore through their senses and through their own activity and movement. Touch: can feel pain, the baby gives a ‘startle’ response if they are moved suddenly. Sound: will turn to sound and may become still and listen to a low sound or quicken their movements when they hear a high sound Taste: likes sweet tastes e.g. breast milk Sight: is sensitive to light, can track the movements of objects and people, likes to look at human faces Smell: turns to the smell of the breast. -Responds to sounds, especially familiar voices -Makes eye contact -Can cry to indicate a need e.g. hunger, dirty nappy etc. -Moves eyes towards the direction of sound -Quietens when picked up -Needs other babies and people around them to share language experiences -Often imitates certain facial expressions. -Enjoys feeding and cuddling -First smile in definite response to carer is around 5-6 weeks. -Uses total body movements to express pleasure at bath time or when being fed PHYSICAL INTELLECTUAL LANGUAGE EMOTIONAL & SOCIAL 4-6 Months Gross Motor Skills: -Beginning to use a palmar grasp and can transfer objects from hand to hand -Interested in all activity -Everything is taken to the mouth -Moves head around to follow people and objects Fine Motor Skills: -Has good head control and beginning to sit without support -Rolls over from back to side and reaches for objects -Holds head up when pulled to a sitting position -Reaches for an object which suggests they recognise and judge distance in relation to the size of the object. -prefers complicated things to look at and enjoys bright colours -Knows that only has one mother and is disturbed if shown several images of mother at the same time. -Realises people are permanent before they realise that objects are. -Can co-ordinate more, tracking, reaching, grasping, sucking etc. -Communicates more and more as they become more aware of others -Listens to and imitates sounds -Reacts to the tone of someone’s voice -Begins to use vowels, consonants and syllable sounds -Begins to laugh and squeal with pleasure -Shows trust and security -Has recognisable sleep patterns PHYSICAL INTELLECTUAL LANGUAGE EMOTIONAL & SOCIAL 6-9 Months Gross Motor Skills: -Can roll from front to back -May attempt to crawl but will often slide backwards -Grasps feet and places them in mouth -Can sit without support for longer periods of time -May ‘cruise’ around furniture and even stand or walk alone Fine Motor Skills: -Very alert to people and objects -Beginning to use a pincer grasp with thumb and index finger -Everything is explored by putting in mouth -Transfers toys from hand to hand and looks for fallen objects -Understands signs e.g. a bib means food is coming -Fascinated by the way objects move and knows objects exist even when they have gone out of sight. -Babble becomes tuneful -Begins to understand words like ‘up’, ‘down’, raising their arms to be lifted up and using appropriate gestures -Can feed him/herself using fingers -Now more wary of strangers -May offer toys to others -Shows distress when mother leaves -Typically begins to crawl, explore and reach more -Now more aware of other

List of French to English False Cognates

List of French to English False Cognates One of the great things about learning French or English is that many words have the same roots in the Romance languages and English. However, there are also a great many faux amis, or false cognates, which look similar but have different meanings. This is one of the biggest pitfalls for students of French. There are also semi-false cognates: words that can only sometimes be translated by the similar word in the other language.This alphabetical list (newest additions) includes hundreds of French-English false cognates, with explanations of what each word means and how it can be correctly translated into the other language. To avoid confusion due to the fact that some of the words are identical in the two languages, the French word is followed by (F) and the English word is followed by (E).Fabrique (F) vs Fabric (E)  Ã‚  Ã‚  Ã‚  Ã‚  Fabrique (F) is a factory. De bonne fabrique means good workmanship.  Ã‚  Ã‚  Ã‚  Ã‚  Fabric (E) is equivalent to tissu or à ©toffe. When speaking fi guratively, e.g., the fabric of society, the French word is structure. Facilità © (F) vs Facility (E)  Ã‚  Ã‚  Ã‚  Ã‚  Facilità © (F) means ease, easiness, ability, or aptitude.  Ã‚  Ã‚  Ã‚  Ã‚  Facility (E) is a semi-false cognate. It usually refers to a structure that serves a particular function, although it can mean easiness, aptitude, etc.Faà §on (F) vs Fashion (E)  Ã‚  Ã‚  Ã‚  Ã‚  Faà §on (F) means way, as in voil la faà §on dont il procà ¨de - this is the way he does it. It can be translated by fashion when it is synonymous with way or manner, as in ma faà §on - in my fashion / my way.  Ã‚  Ã‚  Ã‚  Ã‚  Fashion (E) is a style or custom, usually in clothing: mode or vogue. For all of you apple pie eaters out there, now you know that la mode really means in fashion.Facteur (F) vs Factor (E)  Ã‚  Ã‚  Ã‚  Ã‚  Facteur (F) is a semi-false cognate. In addition to factor, it can mean postman, mailman, or maker - un facteur de pianos - piano maker.  Ã‚  Ã‚  Ã‚  Ã‚  Factor (E) un facteur, un à ©là ©ment, un indice.Fastidieux (F) vs F astidious (E)  Ã‚  Ã‚  Ã‚  Ã‚  Fastidieux (F) means tedious, tiresome, or boring  Ã‚  Ã‚  Ã‚  Ã‚  Fastidious (E) means attentive to detail or exacting: minutieux, mà ©ticuleux, tatillon. Fendre (F) vs Fend (E)  Ã‚  Ã‚  Ã‚  Ã‚  Fendre (F) means to split or to chop.  Ã‚  Ã‚  Ã‚  Ã‚  Fend (E) is se dà ©brouiller, to fend off means parer or dà ©tourner.Figure (F) vs Figure (E)  Ã‚  Ã‚  Ã‚  Ã‚  Figure (F) is a semi-false cognate. It is the French word for face, but can also refer to an illustrated or mathematical figure.  Ã‚  Ã‚  Ã‚  Ã‚  Figure (E) refers to numbers chiffres as well as to the form of a persons body: forme, silhouette.File/Filer (F) vs File (E)  Ã‚  Ã‚  Ã‚  Ã‚  File (F) is a line or queue. Filer (F) means to spin (e.g., cotton or thread) or to prolong.  Ã‚  Ã‚  Ã‚  Ã‚  File (E) can refer to une lime (as well as the verb limer), un dossier, or un classeur (and the verb classer).Film (F) vs Film (E)  Ã‚  Ã‚  Ã‚  Ã‚  Film (F) refers to a movie.  Ã‚  Ã‚  Ã‚  Ã‚  Film (E) can mean un film as well as la pellicule.Finalement (F) vs Finally (E)  Ã‚  Ã‚  Ã‚  Ã‚  Finalement (F) means eventually or in the end.  Ã‚  Ã‚  Ã‚  Ã‚  Finally (E) is enf in or en dernier lieu.Flemme (F) vs Phlegm (E)  Ã‚  Ã‚  Ã‚  Ã‚  Flemme (F) is an informal word for laziness. Its commonly used in the expressions avoir la flemme (Jai la flemme dy aller - I cant be bothered to go) and tirer sa flemme - to loaf about.   Ã‚  Ã‚  Ã‚  Ã‚  Phlegm (E) la mucosità ©.Flirter (F) vs Flirt (E)  Ã‚  Ã‚  Ã‚  Ã‚  Flirter (F) may mean to flirt or to go out with/date someone.  Ã‚  Ã‚  Ã‚  Ã‚  Flirt (E) is flirter or, informally, draguer.Fluide (F) vs Fluid (E)  Ã‚  Ã‚  Ã‚  Ã‚  Fluide (F) can be a noun: fluid, or an adjective: fluid, flowing, flexible. Il a du fluide - He has mysterious powers.  Ã‚  Ã‚  Ã‚  Ã‚  Fluid (E) means fluide or liquide.Fond (F) vs Fond (E)  Ã‚  Ã‚  Ã‚  Ã‚  Fond (F) is a noun: bottom or back.  Ã‚  Ã‚  Ã‚  Ã‚  Fond (E) is an adjective: to be fond of - aimer beaucoup, avoir de laffection pour.Football (F) vs Football (E)  Ã‚  Ã‚  Ã‚  Ã‚  Football (F) or le foot, refers to soccer (in American English).  Ã‚  Ã‚  Ã‚  Ã‚  Football (E) le football amà ©ricain.Forcà ©ment (F) vs Forcefully (E)  Ã‚  Ã‚  Ã‚  Ã‚  Forcà ©ment (F) means inevitably or necessarily.  Ã‚  Ã‚  Ã‚  Ã‚  Forcefully (E) can be translated by avec force or avec vigueur.Forfait (F) vs Forfeit (E)  Ã ‚  Ã‚  Ã‚  Ã‚  Forfait (F) is a fixed, set, or all-inclusive price; a package deal; or, in sports, a withdrawal.  Ã‚  Ã‚  Ã‚  Ã‚  Forfeit (E) as a noun indicates un prix, une peine, or un dà ©dit.Formation (F) vs Formation (E)  Ã‚  Ã‚  Ã‚  Ã‚  Formation (F) refers to training as well as formation/forming.   Ã‚  Ã‚  Ã‚  Ã‚  Formation (E) means formation or crà ©ation.Format (F) vs Format (E)  Ã‚  Ã‚  Ã‚  Ã‚  Format (F) means size.  Ã‚  Ã‚  Ã‚  Ã‚  Format (E) as a noun refers to prà ©sentation; as a verb it means formater or mettre en forme.Formel (F) vs Formal (E)  Ã‚  Ã‚  Ã‚  Ã‚  Formel (F) usually means categoric, strict, or definite, but may be translated by formal in linguistics, art, and philosophy.  Ã‚  Ã‚  Ã‚  Ã‚  Formal (E) officiel or cà ©rà ©monieux.Formidable (F) vs Formidable (E)  Ã‚  Ã‚  Ã‚  Ã‚  Formidable (F) is an interesting word, because it means great or terrific; almost the opposite of the English. Ce film est formidable  ! - This is a great movie!  Ã‚  Ã‚  Ã‚  Ã‚  Formidable (E) means dreadful or fearsome: The opposition is formidable - Lopposition est redoutable/effrayante.Fort (F) vs Fort (E)  Ã‚  Ã‚  Ã‚  Ã‚  Fort (F) is an adjective: strong or loud as well as a noun - fort.  Ã‚  Ã‚  Ã‚  Ã‚  Fort (E) refers to un fort or fortin.Four (F) v s Four (E)  Ã‚  Ã‚  Ã‚  Ã‚  Four (F) is an oven, kiln, or furnace.  Ã‚  Ã‚  Ã‚  Ã‚  Four (E) quatre.Fourniture (F) vs Furniture (E)  Ã‚  Ã‚  Ã‚  Ã‚  Fourniture (F) means supplying or provision. Its from the verb fournir: to supply or provide.  Ã‚  Ã‚  Ã‚  Ã‚  Furniture (E) refers to meubles or moblier.Foyer (F) vs Foyer (E)  Ã‚  Ã‚  Ã‚  Ã‚  Foyer (F) can mean home, family, or fireplace as well as a foyer.  Ã‚  Ã‚  Ã‚  Ã‚  Foyer (E) is un foyer, un hall, or un vestibule.fraà ®che (F) vs fresh (E)  Ã‚  Ã‚  Ã‚  Ã‚  fraà ®che (F) is the feminine form of the adjective frais, which means both fresh and cool. So this tends to be problem for native French speakers, who often translate boissons fraà ®ches as fresh drinks, when what they really mean is cool drinks.  Ã‚  Ã‚  Ã‚  Ã‚  fresh (E) frais, rà ©cent, nouveau.Friction (F) vs Friction (E)  Ã‚  Ã‚  Ã‚  Ã‚  Friction (F) can refer to a massage in addition to friction.  Ã‚  Ã‚  Ã‚  Ã‚  Friction (E) la friction.Fronde (F) vs Frond (E)  Ã‚  Ã‚  Ã‚  Ã‚  Fronde (F) is a sling, slingshot, or catapult; a revolt; or a frond.  Ã‚  Ã‚  Ã‚  Ã‚  Frond (E) une fronde or une feuille.Front (F) vs Front (E)  Ã‚  Ã‚  Ã ‚  Ã‚  Front (F) means front as well as forehead.  Ã‚  Ã‚  Ã‚  Ã‚  Front (E) le front or avant.Futile (F) vs Futile (E)  Ã‚  Ã‚  Ã‚  Ã‚  Futile (F) can mean futile but is more likely to be frivolous or trivial.   Ã‚  Ã‚  Ã‚  Ã‚  Futile (E) is nearly always translated by vain.

Argon Cluster and Graphene Collision Simulation Experiment

Argon Cluster and Graphene Collision Simulation Experiment Formation of Nanopore in a Suspended Graphene Sheet with Argon Cluster Bombardment: A Molecular Dynamics Simulation study Abstract: Formation of a nanopore in a suspended graphene sheet using an argon gas beam was simulated using molecular dynamics (MD) method. The Lennard-Jones (LJ) two-body potential and Tersoff–Brenner empirical potential energy function are applied in the MD simulations for different interactions between particles. The simulation results demonstrated that the incident energy and cluster size played a crucial role in the collisions. Simulation results for the Ar55 –graphene collisions show that the Ar55 cluster bounces back when the incident energy is less than 11ev/atom, the argon cluster penetrates when the incident energy is greater than 14 ev/atom. The two threshold incident energies, i.e. threshold incident energy of defect formation in graphene and threshold energy of penetration argon cluster were observed in the simulation. The threshold ene rgies were found to have relatively weak negative power law dependence on the cluster size. The number of sputtered carbon atoms is obtained as a function of the kinetic energy of the cluster. Keywords: Nanopore, Suspended graphene sheet, Argon cluster, Molecular dynamics simulation Introduction The carbon atoms in graphene condense in a honeycomb lattice due to sp 2-hybridized carbon bond in two dimensions [1]. It has unique mechanical [2], thermal [3-4], electronic [5], optical [6], and transport properties [7], which leads to its huge potential applications in nanoelectronic and energy science [8]. One of the key obstacles of pristine graphene in nanoelectronics is the absence of band gap [9-10]. Theoretical studies have shown that chemical doping of graphene with foreign atoms can modulate the electronic band structure of graphene and lead to the metal to semiconductor transition and break the polarized transport degeneracy [11-12]. Also, computational studies have demonstr ated that some vacancies of carbon atoms within the graphene plane could induce a band-gap opening and Fermi level shifting [13-14]. Graphene nanopores can have potential applications in various technologies, such as DNA sequencing, gas separation, and single-molecule analysis [15-16]. Generating sub-nanometer pores with precisely-controlled sizes is the key difficulty in the design of a graphene nanopore device. Several method have been employed to punch nanopores in graphene sheets, including electron beam from a transmission electron microscope (TEM) and heavy ion irradiation. Using electron beam technique, Fischbein et al.[17] drilled nanopores with the width of several nanometers and demonstrated that porous graphene is very stable; but, this method cannot be widely used because of its low efficiency and high cost. Russo et al. [18] used energetic ion exposure technique to create nanopores with radius as small as 3Å. S. Zhao et al. [19] indicated that energetic cluster irra diation was more effective in generating nanopores in graphene, because their much larger kinetic energy could be transferred to the target atoms. Recent experimental works have further confirmed that cluster irradiation is a feasible and promising way in the generation of nanopores [20]. Numerical simulations have demonstrated that, by choosing a suitable cluster species and controlling its energy, a nanopores of desired sizes and qualities can be fabricated in a graphene sheet [19].

Precalculus Assignment Example | Topics and Well Written Essays - 250 words

Precalculus - Assignment Example However, though the tortoise appears to move with less and less of span travelled, Achilles would have to work on filling in steps or strides to be able to catch up with it – something which tends to be impossible for each task he takes is simply part of an ‘infinite’ number of tasks he is yet to carry out and every time, the tortoise would have gone a bit farther. Thus, Zeno’s argument may be claimed to have been justified as correct in reasoning through such a scenario. In reference to their rates, if Achilles were to catch up with the tortoise at 10 times the animal’s rate at some time, t, then 10x*t = x*t + 1000. Solving this equation for distance ‘xt’, 9xt = 1000 and xt = 111 and 1/9 meters or that about 111.11 meters must have been taken by Achilles to overtake the tortoise. The figure likely expresses representation of a finite value to which the partial sums 100, 110, 111, etc.

Roman Games and their Role in Ancient Rome Research Paper

Roman Games and their Role in Ancient Rome - Research Paper Example While the different types of games including horse racing, gladiatorial combat and so on, all emerged from different origins, each had two important functions: to provide entertainment and titillation to the population, keeping them happy to be part of the Pax Romana and establishing aspects of Roman culture and rule across the breadth of the giant Empire, and as a commercial venture for those involved. There were two major types of games held during the Roman era: chariot racing and gladiatorial combat. Both were immensely popular, but chariot racing was one somewhat more common than gladiatorial games (Romano 387), partly because of the cost of the gladiatorial games, which could often end with an incredibly expensive and well trained slave being wounded or even killed. It is estimated that at their height, there were twenty-four races a day on sixty-six days of the year, meaning that races were relatively common but still rare enough to be of great entertainment value (Bennet 42). Chariot races would consist of several competitors racing in an oval around central pier in a building called a circus or, after the Greek fashion, a hippodrome. Roman chariot racing evolved from the Greek practice, which had been ongoing for centuries, with a recorded history dating back to the first Panhellenic games (Levick 117). Though the Roman one was probably adapted from the Etruscan adaption of Greek racing, it was also probably directly influenced by the Greek practice (Matz 33). While the evolution of Roman chariot racing evolved slowly over many centuries, and has distinctive origins that are somewhat difficult to trace, the origins of gladiatorial games, which involved two slaves fighting each other for public entertainment, are a bit clearer. It seems that it was an Etruscan religious practice amongst the wealthiest people in society to hold funerary games to send off the dead: perhaps to give them a companion to accompany them to the underworld (Minowa 89). These the n began to be a part of traditional religious practices during the Roman ludi (games), which were massive week long festivals that would also include dramatic performances, religious festivities honoring Jupiter, music, and other activities (including chariot racing) (Plecket 160). Gladiatorial combats were also held by various wealthy and/or powerful Romans (people were rarely one without being the other) for various reasons, including celebrating an event like a military victory, ascension to a position and so on (Tataki 369). While the origins of both chariot racing and gladiatorial games are somewhat obscure and debated, their role in Roman society is relatively clear. The Roman state, and the people who ran it, saw games as part of their patrician obligation to their populace (Boatwright 190). They would keep the population happy and entertained as well as thankful to the Roman state. This was true of games that were held as a part of ludi, which also had religious significance , as well as one-off games that were often more explicitly designed for entertainment. Furthermore, amphitheaters and circi were often installed in smaller cities in Roman provinces, making their connection with the Roman state strong and centralizing the importance of Roman culture that might be quite distant from its centre, Rome (Carter 300). This all plays a central part of the Roman character, the idea

Private and Public Schools Essay Example | Topics and Well Written Essays - 1000 words

Private and Public Schools - Essay Example Private and Public Schools: The differences and Ultimate Goal According to general definition, a public school is funded, maintained, and conducted by a private group other than government while public schools are maintained at public expenses or in other word from the tax money. The opponents vow that private schools detract students from their main objectives - education, and create social segregation for the future society. The proponents of private schools also refer to various benefits: (1) students build strong, personal relationship with their lecturers and instructors, as there is a special program planned to increase interaction and dialogue between the two, (2) both private high schools and private colleges have small class sizes, (3) private colleges have a significant amount of extra-curricular programs and activities that develop a strong sense about the community. The proponent of public schools explains that there are more competitions in public schools, and these schools are more innovative. The children of these schools know th at they will have to face competitions in lives; family background will not help in achieving success in their future lives. The proponents also point to the following benefits: (1) Students have more variety in selecting geographical areas of the nation, (2) Fees are cheaper than that of private schools, (3) Public colleges are much bigger and more equipped than the average private university, and students will be more comfortable with high student population.

NGOs are an effective force in processes of conflict resolution and Essay - 1

NGOs are an effective force in processes of conflict resolution and healing. Discuss using examples - Essay Example Types of NGOs In modern times, there has been the emergence of Non-governmental organizations also known as NGOs and these have played numerous roles in this modern society. This is especially with the registration and recognition, as well as integration of NGOs into the United Nations to assist in provision of services to marginalised areas and even serve the needs of minority groups (Crowe p.1796). Some of the roles that are played by NGOs include; provision of humanitarian services that would otherwise not be available to certain parts of the human population. In addition, provision of a platform for the population to air its grievances to the rest of the world and even leaders, and serve as a bridge between the rest of the world and local communities in which these NGOs work from and within. Because of this, there are different types and forms of NGOs that serve different purposes and in different localities for various populations. As such, based on the definition of NGOs as non-profit organi zation, they can be categorized into community-based organizations, which are small intimate organization that are run exclusively by members and based out of locally available resources. Another type of NGO is the intermediary NGO that involves the use of paid staff to provide social services to individuals and other organization, while there is another type, which is the intermediary NGO focussing on policy and advocacy which reflect the needs of both local communities and other NGOs, as well as organizations (Nesbit p.9). The last type of NGO is the one that deals in international relief and development, and consists of professional staff and is found in many countries through branches and chapters. Humanitarian Efforts With the above information, it simple to come up with different roles of NGOs as these categorizations spell out what each organization does and at what level. Consequently, in conflict resolution and healing, NGOs roles can be explained and illustrated following their structure. The first way in which NGOs are an effective force in the process of conflict resolution and healing is following their humanitarian services provision to populations that need them. With this in mind, the key role is the healing process and not on conflict resolution, although from a different perspective this is achieved. By providing humanitarian services such as medical supplies and health services, where those that are affected or affected communities are served with services that eliminate human suffering in both warring camps of communities in conflict. As such, the first category of NGOs is well versed in this by being the immediate source of these humanitarian services where th ey use only what they have to provide for their own people and even others form the camps in conflict. Through this, the warring population is brought together by human suffering especially concerning diseases and injuries, as well as wounds to make peace and cooperate for their own wellbeing (Clapham p.522). This is evident in cases of Sierra Leone, where community based NGOs came together and served to mitigate the effects or outcomes of the conflict in the country. This was through providing medical services to the wounded and even reusing service to those that came later until an amicable agreement was reached to

A Overview of the Grand Canyon Research Paper Example | Topics and Well Written Essays - 750 words

A Overview of the Grand Canyon - Research Paper Example How the Grand Canyon came into existence? No one knows. There are abundant guesses. Accept it as the one of the most beautiful area of nature. A number of processes and more than one factor must have contributed to its formation and what one sees in the Grand Canyon presently, is the outcome of the process of evolution over a very long period. â€Å"The most powerful force to have an impact on the Grand Canyon is erosion, primarily by water (and ice) and second by wind. Other forces that contributed to the Canyons formation are the course of the Colorado River itself, volcanism, continental drift and slight variations in the Earth’s orbit which in turn causes variations in seasons and climate†. (The Geology†¦.)Canyon is basically located in a desert. Heat of the sun bakes the soil in the Grand Canyon; it becomes so hard that it cannot absorb water, when rains come. The roots of the plants in the Grand Canyon cannot pierce the hard earth-bed and the root systems are very shallow and they absorb as much water as is possible during rains. These plants are unable to block the process of soil erosion. With no check on the soil and rock in place, during heavy rains flash floods occur with devastating consequences. The flood water carries down the Grand Canyon, everything on its course, spares nothing, and big boulders roll down as if they are pebbles. It assumes the shape of flowing concrete and not water. Those hiking through the side canyons must have the accurate information of weather conditions, to avoid calamities. It is a steep canyon. The ‘sculptor’ of this canyon is the Colorado River in Arizona, USA. It is 277 miles long, the maximum width is 18 miles and its depth is a stunning 6000 ft. It is part of the countless years of the Planet Earth’s geological history, and the River and its tributaries are the architects of this

Private and Public Schools Essay Example | Topics and Well Written Essays - 1000 words

Private and Public Schools - Essay Example Private and Public Schools: The differences and Ultimate Goal According to general definition, a public school is funded, maintained, and conducted by a private group other than government while public schools are maintained at public expenses or in other word from the tax money. The opponents vow that private schools detract students from their main objectives - education, and create social segregation for the future society. The proponents of private schools also refer to various benefits: (1) students build strong, personal relationship with their lecturers and instructors, as there is a special program planned to increase interaction and dialogue between the two, (2) both private high schools and private colleges have small class sizes, (3) private colleges have a significant amount of extra-curricular programs and activities that develop a strong sense about the community. The proponent of public schools explains that there are more competitions in public schools, and these schools are more innovative. The children of these schools know th at they will have to face competitions in lives; family background will not help in achieving success in their future lives. The proponents also point to the following benefits: (1) Students have more variety in selecting geographical areas of the nation, (2) Fees are cheaper than that of private schools, (3) Public colleges are much bigger and more equipped than the average private university, and students will be more comfortable with high student population.

A Overview of the Grand Canyon Research Paper Example | Topics and Well Written Essays - 750 words

A Overview of the Grand Canyon - Research Paper Example How the Grand Canyon came into existence? No one knows. There are abundant guesses. Accept it as the one of the most beautiful area of nature. A number of processes and more than one factor must have contributed to its formation and what one sees in the Grand Canyon presently, is the outcome of the process of evolution over a very long period. â€Å"The most powerful force to have an impact on the Grand Canyon is erosion, primarily by water (and ice) and second by wind. Other forces that contributed to the Canyons formation are the course of the Colorado River itself, volcanism, continental drift and slight variations in the Earth’s orbit which in turn causes variations in seasons and climate†. (The Geology†¦.)Canyon is basically located in a desert. Heat of the sun bakes the soil in the Grand Canyon; it becomes so hard that it cannot absorb water, when rains come. The roots of the plants in the Grand Canyon cannot pierce the hard earth-bed and the root systems are very shallow and they absorb as much water as is possible during rains. These plants are unable to block the process of soil erosion. With no check on the soil and rock in place, during heavy rains flash floods occur with devastating consequences. The flood water carries down the Grand Canyon, everything on its course, spares nothing, and big boulders roll down as if they are pebbles. It assumes the shape of flowing concrete and not water. Those hiking through the side canyons must have the accurate information of weather conditions, to avoid calamities. It is a steep canyon. The ‘sculptor’ of this canyon is the Colorado River in Arizona, USA. It is 277 miles long, the maximum width is 18 miles and its depth is a stunning 6000 ft. It is part of the countless years of the Planet Earth’s geological history, and the River and its tributaries are the architects of this

Organisational dialouge Essay Example for Free

Organisational dialouge Essay Question 2: A range of authors (e.g. Gerard and Ellinor 2001; Isaacs 1993, 1999; Schein 1993; Senge 1995) suggest that dialogue can positively transform organizational cultures. Do you agree with this assessment? Why? Why not? Engage with relevant academic literature in developing your argument. Student Name: Nguyen Vu Hoang Dung Student Number: 11477445 In organization people spend 80 percent of their time to communicate (The British Psychological Society 2012). Communication is a key tool to share information, foster different opinions and build alignment and trust. According to Gerard Teurfs (1995), the process of dialogue is an invitation to create organization cultures through conversations. It acts as a learning environment that shifting individuals to â€Å"a deeper understanding of collaboration in groups, and a new way of sensing their connections to others throughout the organization† (Querubin 2011, p.19). It brings all the ideas together and suspends judgment so people will have a greater chance to understand each other (Brayman, Grey Stearns 2010). This essay will analyze the role of dialogue in transforming organizational cultures positively and all the benefits it brings. However, it will also examine the challenges of implementing dialogue. Organizational culture includes shared values and beliefs that guide behaviors of all members and determine the way things should be done in the organization (Sergiovanni 1984). Company has its own culture usually indicates higher performance. The role of dialogue is not only to spread the common values and meanings that company wants its employees to follow but also allow everyone to express their own interest. According to Gerard and  Ellinor (2001), the main purpose of dialogue is to produce collective understanding. Firstly, they compared the differences between dialogue and discussion. In discussion, people tend to protect their own thoughts and do not truly concern about other’s opinions and needs. They play as a speaker’s role rather than as a listener. It might leave the remainder out of discussion with frustration, isolation and disrespect. Decisions could be made by the person who has the most power and influence in the group (Gerard and Ellinor 2001). Hence it weakens the aim of enhancing organizational cultures. In contrast, when employees participate in a dialogue, their role as a listener is more important than as a speaker. They desire to hear what others want to say. They try to fit all different perspectives into a common value. Therefore, if issues occur, they listen to deeply understand other’s thoughts and opinions (Gerard and Ellinor 2001). By doing that, employees are getting closer to each other and conflicts are minimized. They help their team or their department to build shared culture. Secondly, Gerard and Ellinor (2001) stated five skills of dialogue including suspension of judgment, listening, reflection, assumption identification and inquiry. They defined the meaning of suspension in dialogue is not to stop one’s judgment about a problem. Instead, they have to aware what their judgments are and â€Å"then holding them lightly so they can still hear what others are saying† (Gerard and Ellinor 2001, p. 7). After listening carefully to other’s ideas, they need to reflect their own assumptions. Therefore, to revising whether those assumptions are linked to the organization or not. If they cannot understand the differences, they must inquire for more information. Hence, this process of dialogue enables each employee to foster different views and converge them together to become one unique aim. Organizational culture is enhanced. In agreement with Gerard and Ellinor, Isaacs (1999) analyzed four principles of dialogue based on Bohm’s research in 1996. They are listening, respecting, suspending and voicing. Firstly, Isaacs had compared listening skill in dialogue to listening to music. He stated a single note of music could not deliver the meaning of the whole song. It is similar to one’s role in a conversation. A single idea is not sufficient to set purposes and  cultures for the whole organization. Hence, dialogue is an excellent practice to give people a chance to listen deeply and get into the nature of the conversation. Secondly, he defined respecting as getting to know more about one person and figure out what sources or circumstances has created their particular thinking. Based on this understanding, people in an organization will pay more respect to each other. The main goal of respecting in dialogue is not to seek decision but to tolerate difference, gap and conflict (Isaacs 1999). The third principle of dialogue, suspending, is determined similar to Gerard and Ellinor (2001). And the last principle Isaacs mentioned is voicing. He suggested people should listen internally so as to select what should say and what should not say in a circumstance. Sometimes keeping silence and listen can achieve the best result. Therefore, the purpose of voicing means people contribute their speech, not only for themselves, but to the whole idea. Overall, these principles are considered having positive effects on organizational learning. They emphasize group and organization achievements rather than an individual accomplishment. In Schein’s study (1993), he described dialogue as â€Å"talking around the campfire† (p. 391). He used â€Å"campfire† as a metaphor to explain how decision is made through dialogue. In the past, people sat around campfire during meeting and shared their own opinions. Arguments would never come up as people just simply expressed their thoughts without any discussion or debate. Through that, they were aware themselves which idea was acceptable and were unacceptable (Schein 1993). This process allowed enough time for each person to listen to a deeper layer of other’s opinions then reflect on their own assumptions. Moreover, Schein introduced the check-in concept. At the beginning of the meeting, each person will respectively contribute his or her ideas, views and feelings to the group as a whole, and therefore, â€Å"has helped to create the group† (Schein 1993, p. 392). Lastly, Schein stressed the limitation of eye contact. This makes people feel ea sier to suspend disagreements and concentrate on listening. Senge (1995) determined dialogue as a facilitator for team learning. Based on his research, team is the key unit to build culture in an organization. By applying dialogue into team learning process, it develops shared vision and  brings result every member truly desires. It also creates teamwork and shares equal leadership to each member in the group. Through sharing a common pool of meaning, culture is positively transforming from individual to group values and beliefs. Although dialogue is proved to have a great effect on organizational culture, there are challenges in implementing it into organization learning system. The first challenge is due to hierarchy level in an organization (Raelin 2012). Dialogue requires equal say and sharing from each member of the organization. However, employees tend to afraid of expressing their true views in front of their managers. They leave decision making to people at higher position. In top-down companies, upper levels of management have full knowledge of desired targets, goals and norms. They have the right and ability to create and change organizational culture. They enforce rules and duties on their employee. They usually do not spend time to listen to individual’s opinion and feeling. Hence, it is very challenging to apply dialogue into this type of business. Furthermore, if the organization involves a cross-culture, that employee come from different culture backgrounds, there is a need for a more lengthy and complicated process of dialogue (Schein 1993). In this type of organization, people use different languages and operate from different mental models. Organization needs to design a dialogue that enables all these people to communicate effectively. Thornhill, Lewis Saunders (2000) also emphasized there is may be a need to â€Å"re-designing of performance appraisal systems and reward systems† and â€Å"the re-definition of job roles to induce employees into accept the new behavior expected from them† (p. 27). Hence it is costly and time consuming. Finally, dialogue may not be suitable to apply to all organizations cultures in the world. For example, Western culture is different from Eastern culture. As dialogue encourage the limitation of eye contact (Schein 1993), people from the West will consider this as impolite or even disrespectful (Spindler 1990). In addition, in Western countries people prefer confrontation whereas Eastern people prefer to say what they feel most  appropriate in this circumstance or least hurtful to the others (Schein 1993). Therefore, dialogue must be selective so it is suitable for each particular organization. In conclusion, dialogue has played a key role in positively transforming organizational culture. It acts as a learning environment that shifts individual to group thinking. It leads each employee to recognize the essential of collaborating in a group. Querubin (2011) demonstrated that dialogue enables members to â€Å"become open to diversity and lose an â€Å"us vs. them† paradigm so prevalent in task-oriented cultures† (p. 19). Hence, group achievement is more important than individual accomplishment. Moreover, dialogue includes suspending of judgment, listening, respect, reflection, assumption and voicing. Through all these principles, dialogue creates collective understanding and leads all members of the organization to higher commitment. However, the implementation of dialogue still faces several challenges, including hierarchy levels, time consuming and different cultural backgrounds. Therefore, selective approach of dialogue must be considered to apply to specifi c organization. REFERENCES Bohm, D. 1996, On Dialogue. Ed. Lee Nichol, Routledge, London New York. Brayman, J., Grey, M. Stearns, M. 2010, Taking Flight to Literacy and Leadership, Rowman Littlefield, viewed 16 December 2010, Ellinor, L. Gerard, G. 2001, Dialogue at Work: Skills at Leveraging Collective Understanding, Pegasus Communications, Waltham, MA. Ellinor, L. Gerard, G. 2001, Dialogue at Work: Skills at Leveraging Collective Understanding, Pegasus Communications, Waltham, MA, pp. 7. Gerard, G. Teurfs, L. 1995, Dialogue and Organizational Transformation, 1st edn, Sterling Stone, Inc., San Francisco. Isaacs, W. 1999, Dialogue and the Art of Thinking Together: A Pioneering Approach to Communicating in Business and in Live, Currency, New York. Querubin, C. 2011, ‘The effect on the organization’, Dialogue: Creating Shared Meaning and Other Benefits for Business, pp. 19, Raelin, J. 2012, ‘Dialogue and deliberation as expressions of democratic leadership in participatory organizational change’, Journal of Organizational Change Management, Vol. 25. Schein , E. H. 1993, On dialogue, culture, and organizational learning . Organizational Dynamics, pp 391-392. Senge, P. M. 1995, The spirit of personal mastery, MN: Charthouse International Learning Corporation, Burnsville. Sergiovanni, T. 1984, ‘Leadership and excellence in schooling’, Educational Leadership Journal, vol. 4. Spindler, G. 1993, The American Cultural Dialogue and Its Transmission, Psychology Press, The British Psychological Society 2012, Dialogue: How to create change in organizations through conversation, viewed 14 May 2012, http://www.bps.org.uk/events/dialogue-how-create-change-organisations-through-conversation-1 Thornhill, A., Lewis, M. Saunders, M. 2000, Managing Change: A Human Resource Strategy Approach, Prentice Hall, London.

Impact of Ash Cloud on British Airways

Impact of Ash Cloud on British Airways INTRODUCTION Purpose: The purpose of this project was to analyse a current issue that has affected the current hospitality industry drastically. In the recent scenario, natural disaster has been seen to put a major impact on major hospitality industry .The main purpose of the task was to choose a situation of unavoidable circumstances, which could be either terrorism or natural calamity, that organisations have faced recently, and provide a solution of the situation recently faced. Scope: While investigating the current scenario, it was important to focus on the operation and functions of the company and how these operations got affected due these particular circumstances Method: The method used in this task, was through information gathered, mainly from the secondary sources such as business magazines and articles and some old news papers. Secondary sources came out to be very helpful in gathering the customer reviews and staff reviews who were affected by these circumstances Limitation: As every project work has some limitation. As an author, it would be imperative to mention the limitation of this task .The main limitation of the task was relying only on the secondary sources of the information as primary sources were meant to be more confidential by the company. I would consider this as a limitation as it is a belief that secondary sources always have some differences with the primary one. LITERATURE REVIEW By Peter Apps LONDON | Fri Apr 16, 2010 7:58pm EDT European fuel cost of jet marked degree of difference to ICE-traded gas oil contract went down to $ 0.50 on Thursday and $ 48 a metric ton on Friday. But forecasters said the enduring price effect would be least once flights recommence; most of the airline purchase is done through long-standing contracts. European gas, oil, gas electricity production is unexpected to be affected. Some PLANES FROM THE OIL RIGS COMMENCED ,BUT THE SOURCES SAID THAT THE IMPACT OF SOLAR POWER WOULD BE MORE RATHER THAN THE CLOUDS THAT ARE PASSING BY.ACCORDING SOURCES OF THE WIND INDUSTRY SAID THAT COLD DUST WOULD NOT CREATE PROBLEM FOR THE WIND TURBINES  · IMPACT ON HELTH World Health Organization warned the ash could create problems for them, who have breathing difficulties, though it did not still had assessed this sort of specific eruption. A respiratory disease Scottish expert said to Reuters that the less poisonous DUST THOSE WER DRIFTING AROUND UK WAS LESS LIKELY TO DO ANY BIG HARM BECAUSE TO HARM PEOPLE ,THE QUANTITY SHOULD BE EXTRA AGRICULTURAL AND CLIMATE IMPACT Scientists SAID THAT THIS ERUPTION DID NOT SEEM TO HAVE CREATED ANY MASSIVE DUST THAT WOULD IMPACT PEOPLE OR FARMING,BUT THEY WER BIT CONCERNED THAT A BIGGER ERUPTION FROM KATLA VOLCANOE WOULD BE DIFFERENT THING ALTOGETHER By Andrew Torchia) By Andrew Torchia) Near about 17,000 planes were LIKELY to be STOPPED FROM FLYING on Friday, with airdromes clogged across much of subcontinent. Shares in airlines fell between 2 to 4 percent. Ryanair said it may cancel planes to and from north European countries till GMT 1200 on Monday. The interruption is costing air industry in excess of $200 million a day, (Fraport AG), that operates Germanys major airport in Frankfurt, states its primary estimate was for the dust ash to incur it between 2.5 to 3 million Euros a day. Icelands position means the flare-up could prompt broader disturbances to international aeroplanes. Iceland falls in the right on one of the crucial routes between USA and the Europe and as per meteorological circumstances it might also affect aeroplanes from Europe to Asia, thats why there are 2 big global flows which might be affected by this, as said by John Strickland, who is director of consultancy of air transport( JLS Consulting). There could be still disturbances to other planes or might have to go for more indirect routes, which increases costs and maybe even require flights to land as it would not be possible to go through direct route. ALTERNATIVE TRANSPORTS Eurostar, that runs from London to other European continent, said railways were running at full capacity and it may lay extra trains if required. A taxi company of London Addison Lee said it took requests for travels to European cities Milan, Paris, Salzburg, Zurich and in Austria. IMPACT ON AIR CARGO Landed CARGO PLANES HAD TO STOP DELIVERY of stuffs such as microchips, vegetation and mails. Europes major express delivery dfirm Deutsche said it had to switch to roadways wherever it was possible. Clicking to sea cargoes would be an alternative for longer deliveries, though not for less life items such as flowers, but ship forecasters said it would probably take more days before companies started booking again by marine. Pharmaceutical equipment in particular is frequently transported by airway, but specialist forecasters said there were plenty stocks, therefore there should be no bigger shortages for that time. ENERGY JBC Energys replica for Europe jet fuel utilization puts daily expenditure at 1.17 million barrels in a day, so presuming an approximate 80 percent of Europes aerodromes were close for 48 hours, the interruption would have cut 1.87 mn barrels in demand Some demands may just vanish and those who have to fly will ultimately fly, but there will certainly be some planes that just dont take place, as said by JBC Energy fuel forecaster David Wech. european oil prices of jet went dowm from $48 to $50.50 on thursday ,but the analyst told that future impact would only be less and as soon as the fligths will resume ,it will do fast recovery. ACCORDING TO THE SOURCES FULES AND GAS PRICES WERE LESS LIKELY TO SUFFER.ALSO THE SOURCES SAID THAT SMALL HELICOPTERS COMING AND GOING FROM THE OIL RIGS ALSO COMMENCED IMPACT ON INSURANCE Airlines are believed to have less recourse to insurance companies. Most of the airlines are nor insured next to cancellations nor commerce trouble at aerodromes. Munich Re said it might offer cessation insurance to air companies if essential. Till now there hasnt been any demand in market, as said by a spokeswoman.Perhaps that will change at this time. http://www.reuters.com/article/idUSTRE63F65A20100416?feedType=RSSsp=true Iceland volcano Ash cloud: airline passengers face further misery    Image  1  of  5 The cloud has caused massive disruption to European airspace.  Photo: AP Iceland volcano Ash cloud: airline passengers face further misery    Image  1  of  5 Passengers face further disruption as airlines struggled to change flight plans.  Photo: AFP/GETTY Iceland volcano Ash cloud: airline passengers face further misery    Image  1  of  5 They receieved good news, however, after the High Court outlawed further strikes by BA workers.  Photo: AP Iceland volcano Ash cloud: airline passengers face further misery    Image  1  of  5 The airline has been hit by the wave of industrial action.  Photo: PA By Andrew Hough, David Millward and Caroline Gammell 8:15AM BST 18 May 2010 Postponements were still expected at aerodromes throughout the country in spite of a last minute slab being placed on manufacturing action intended by BA crew strike and an repair of aviation no flying regulations to decrease future airline closures caused by Icelands Eyjafjoell eruptions. Official staffs admitted disruption would possibly carry on for the majority of the week. Airlines were struggling a lot to return timetable to normal after cloud of thick ash gist over the continent, shutting major aerodromes and making more than 1,000 planes to be negated. Airlines, that have incurred millions of money due to the ash alertness, criticised Mondays shutting of airports and criticise the replica used to forecast the spread of the volcanic dust as obsolete and out of place. Executives act in response with rage to what they disagree were unnecessary limitations introduced by over watchful security watchdogs. British Airways CEO Willie Walsh directed the disapproval, labelling limitations as a gross over response to a very slight risk. Experts told that the volcano, which lasted month, resulted most of Europes aerodromes to be close down for one week, has released massive quantity of ash dust, which can block jet engines, as it began to explode one month ago and cautioned that there was no finish to this in sight. Last months eruption strained many countries in north Europe to close their aerodromes, making in excess of 100,000 flights to land and an approximate 10 million explorer globally. The (IATA), the international airline industry branch forecasted that last months closure was Europes major since 2nd World War cost transporters in excess of  £1.1 billion. The latest outbreak strained Londons airports to close for 6 hours on Monday, leading to lots of postponements and score of aeroplanes in the incorrect place. Near about 200 flights were abandon at Heathrow, 88 in Gatwick and 40 in Liverpool airport. And also 50,000 passengers were stranded. Aerodrome official cautioned travellers it may take time for aeroplanes to clear the log jam of postponed flights and recommended them to get in touch with their airlines before leaving for the airport. After a day of confusion, passengers afterwards received a twofold dose of positive news after the Court banned the back-to-back agitation by cabin crew of BA while the Civil Aviation Authority (CAA) distorted its criterion for allowing aircraft to take off. The court decision came very late for BA to re-establish its full flying timetable at Heathrow that had been interrupted earlier in the day by the ash dust. In spite of the High Court ban, British Airways confessed that planes will still be affected for the whole of the week The airline industry has been anxiously trying to restore the 80 small haul and 30 lengthy haul planes from Heathrow which faced curtailments had the strike went further ahead. One spokesman for the airline industry told half of small-haul and 40 % of lengthy-haul services from Londons may be affected as it was too late to restore a overall service. He told that its function, however, was thought to return to usual by the end of week. The verdict was a enormous relief for the industry which told the court that as it had planned for five-days strikes, it would have coasted the airline industry £138 million. Union representing BA crew, prepared to plea against the ban which stopped strike action planned by 1000 of members in the acidic row over employment, staffing and pay levels. The ruling came as the CAA proclaimed that it had formed a new limited time zone to allow specific aircraft to go through a bigger density of dust than previously allowed. The change that came into effect at noontime on Tuesday would not only have an effect on Flyby initially, but other airline industry is believed to follow. Once producer and airline companies have offered a joint safety case which gives a proof that they can go through the dust ash without harm, they will be permitted to fly. As a consequence of this alter, there are no forecasted limits on UK air in the instant prospect, said Richard Deakin, the CEO of Nats, the traffic control company. The CAA blamed the Met Office for the newest close down. The Met Office replica was forecasting ash which wasnt there when the check flights were done, a spokesman from CAA said We have enquired the Met Office as to why their forecasted model showed a thing that was not consequently backed up. The Met Office backed up its computer system, insisting it was assisted by imagery of satellite, observation, laser checks of the ash in the environment and other proof from test planes. It said the dust was over South East but not in the levels that ground aircraft The amount of ash is uncertain on an hourly base. The circumstances are very runny, a spokesman said to the Daily Mail. In Iceland in the meantime, there have been no signal of the volcano ending. Experts told that the Eyjafjoell flare-up, which started on April 14, have shaped up thrice, with the newest surge of movement coming Friday in April. from the starting of the outbreak, they predicted that 250 million cubic metres of tephra (ash and other fragmental material) has been formed, as said by Iceland geophysicist Magnus Tumi Gudmundsson. The civil protection of Iceland agency told that the ash cloud was travelling to the north and wasnt expected to drift to Europe in coming two days May2010 by Andrew Hough, David Millward and Caroline Gammell http://www.telegraph.co.uk/travel/travelnews/7735248/Iceland-volcano-ash-cloud-airline-passengers-face-further-misery.html CASE STUDY ON BRITISH AIRWAY (April 16, 2010) Steve Rothwell and Sabine Pirone On April 16 (Bloomberg) British Airways and Virgin Atlantic Airways Ltd. and cargoes that depend on lengthy -haul business tour for earnings would be worst-hit by the close down in air travel affected by the outbreak of the Icelandic volcano. Airline companies may incur $1 billion loss, if ash cloud keeps the European airports closed the weekend, the central for Asia Pacific Company said. British Airways, which earns daily revenue of near about 24 million pounds ($37 million), halted all planes today as U.K. aerodrome was confined until 1 a.m. tomorrow least. Airline industry will have to incur their major losses in the trans- Atlantic business-passenger group, Ashley Steel, Global Chair for Transport and Infrastructure at KPMG, said in a conference. For airline like BA, every day as their plane being grounded will likely to incur millions of money. The effect on economy-class sales is likely to be weakened because persons will be changing their bookings and ultimately still fly. The ash cloud from the Icelands Eyjafjallajà ¶kull volcanoes roofed parts of Britain, Germany, Norway, Ireland, Sweden, Finland, Belgium, Netherlands Russia this morning and afterwards glided over France, Poland Czech Republic. Its estimate to reach Switzerland, Austria and Hungary by midnight, according to U.K. Meteorological Official data. 6 million passengers could have been affected if closures extended to April 18.. Business Trips British Airways, which is the No. 1 transporter in the market of north Atlantic including planes between London to New York, was prone to undergo loss most from the interruption because of its dependence on traveller making trips of business that cannot be rescheduled. U.Ks top. Billionaire Richard Bransons Virgin Atlantic, which is the largest long-haul competitor to British Airways at Heathrow Airport, would have also lost revenue that would have been doubtful to be recovering, as said by KPMGs Steel. Coach class travellers and all those flying with the discount air buses on vacation or may be to visit friends, family were more likely to rearrange their journeys, she said. British Airways and the Virgin Atlantic said it will be very early to provide an approximation for the cost of the interruption. They said We arent giving any direction on the cost incurred at this moment, BAS spokeswoman Cathy West told in a phonic interview. We have got no clue when it is going to finish yet. The Virgin spokeswoman Anna Knowles told the Crawley, which is an England- based company, that virgin is concentrating on getting process up the operation and the running and that it is impossible to put figure on loss till now. Never Return Lots of BA and the Virgin passenger goes for top cabins and these people are travelling on totally -refundable tickets, said Steel. Most of the money will not return to them as passengers will just not go for rebooking the berths. The closedown could also tilt the balance for unbeneficial SAS AB, the current owner of Scandinavian Airlines, were one of the first flights to scrap planes as the cloud swept over Norway, Sweden , Denmark, as Steel said. Competitor Nordic carrier Finn air told that the languishness is incurring it 2 million Euros ($2.7 million) in a day. The carrier had to cancel 435 flights so far, and affected 54,000 travellers. SAS plans to approximate volcano-related expenses by April 19, Sture Stoelen, head of investor relations, told by telephone. Its complex, Stoelen said. Were losing revenue but also saving on operating costs, but then there are other costs for hotels and so on. The ash cloud has interrupted flying just like European carriers moved to hectic and more well-paid summer schedules, said Yan Derocles, who is an analyst at Oddo Securities Paris.   Ãƒâ€šÃ‚  Ãƒâ€šÃ‚  Ãƒâ€šÃ‚  This is the most busiest time for airline industry, specially on North Atlantic direction, . Derocles said that the leading names will be losing 40 million to 60 million Euros in a day. Physical Damage Airline industry insurance strategy wont normally pay out unless theres a damage to the equipment, as said Alexandra Lewis, who is a spokeswoman for London-based Benfield branch of Aon Corp., which is the worlds biggest insurance broker. Insurers cover up business disruption only if bodily damage is the cause for it, as said Richard Manson, a spokesperson for the manufacturing insurance unit of Munich-oriented Allianz SE, continents major insurer. Thats why they did not anticipate claim from clients which included airline industry as well aerodrome. The closedown is likely to incur aviation industry near about 0.25 percentage of their yearly income per day as said by Joe Gill ,who is an analyst in Bloxham securities at Dublin that covers firms like Ryanair Holdings Plc, EasyJet Plc, which is continents two major low fare carriers. The aviation industry will be clawing back good amount of money by looking for to increase give up a measure of prices of tickets as demand rushes in the immediate consequences of the airport shut downs. The largest expenses will be for re-booking and re-funding travellers, MR Manson said, with income losses partly offset by petroleum savings. Airline industry will be losing a combined billion $2.8 in 2010 following an approximate billion $9.4 increasing loss previous year, as predicted by the International Air Transport previous month. http://www.businessweek.com/news/2010-04-16/british-airways-virgin-atlantic-may-suffer-most-from-ash-cloud.html With support from Robert Fenner in the Melbourne, Oliver Suess from Munich, Crowley at London. And the Editors: Chris Jasper and Kenneth Wong. Adapted from the editorials of Steve Rothwell, London at [emailprotected]; Sabine Pirone, London at [emailprotected] The editors responsible for this story adapted: Kenneth Wong at [emailprotected]; Benedikt Kammel at [emailprotected] Company overview COMPANY FINANCIAL OVERVIEW British Airways is among the worlds leading listed finest international airline company. The organisation chiefly operates in the Europe and US. This organisation has headquarters in Harmondsworth, in the UK and employs 41,494 staffs. The company has recorded earnings of GBP 7,994 million equivalent to $12,761.1 million) throughout the fiscal year ended March 2010 -(FY2010), a diminish of 11.1 percent as compared to the FY2009.The functioning loss of the corporation Was GBP 231 million equivalent to $368.8 million as during the FY2010, compared to the functioning loss of GBP 220 million ($351.2 million)in the FY2009. The net- profit was GBP 182 million -$290.5 million as in FY2010, compare to net loss of GBP 1,360 million (USD 2,171 million) in FY2009. History The foundation of British Airways runs equivalent to the history of civil airline industry in the globe. On the August of 25, 1919, The British Airways predecessor company The Aircraft Transport and Travel commenced the worlds first every day international planned air service running between London to Paris. In March 31, 1924, UKs four airline company Inston and Handley Page Transport, and Daimler Airways and British Air Marine Navigation fused to form the Imperial Airways Ltd. About this time, a quantity of small UK air companies also had started their functioning. All these combined in 1935, to shape the new private owned BA Ltd. During 1939 November, UK Government made Imperial Airways along with British Airways nationalised, to give ascend to the beginning of the British Overseas Airways Corporation. After the Second World War, The BOAC sustained to function lengthy-haul services, whilst other international l European and local flights were runned by a novel airline company, British European Airways Corporation (BEA). On 1972, BOAC and the BEA were merged under the new created British Airways Board. Afterwards, the separate airline companies were fused to shape British Airways, on 1974. Privatization With a vision to switch British Airways to private high revenue making Airline Company, late Lord King supposed the situation of its president, in 1981. After which he selected Colin Marshall as CEO of the airline company. The arduous efforts of King and CEO ultimately made the massive loss making Airline Company to one of the major profit earning air planes in the globe. Consequently, the airline company said itself as The Worlds much-loved Airline Company, in that time when other big airline company suffered to set up their place in the civil airline industry. The airline companys image was transformed under the leadership of king. Ultimately, this resulted to the British Airways privatisation, in the year 1987. Fleet and S Destination The British Airways has a up to date fleet which has average age of 9 years. It includes of near about 228 aircrafts, including Airbus (A319), Airbus (A320-200), Airbus (A321-200), Boeing (737-400), Boeing (747-400), Boeing (757-200), Boeing (767-300ER), Boeing (777-200) and Boeing (777-200ER). Currently, the British Airways travels to 6 local places and in 143 intercontinental places in 69 countries, which includes six continents around the world. , British Airways to Delhi and Mumbai, Chennai, Bangalore and Hyderabad. http://www.iloveindia.com/airlines-in-india/international/british-airways.html Effect of ash cloud on British airways (based on the guardian report) As per the report British Airways said the confusion caused by the air travel ban across much of continent is incurring between 15m to  £20m in a day and that it will be looking for reimbursement from EU and UK government. Travel operator, the Tui Travel approximated its expenses at GBP 5m AND  £6m per day whilst budget plane service Easy Jet had put its expenses at GBP 5m per day. The Shares in airline companies and the holidays companies Around the Europe struggled with quick falls in stock market places as the interruption intensified. CEO of BA Willie Walsh told: This is an unparalleled situation which is having a enormous impact on travellers and airline companies alike. They told that they carry on offering enormous support to their customers. Though, these are unexpected conditions that are beyond all airline companies hold. To help us with these circumstances, The European airline industry has enquired EU and country governments for monetary compensation for the shutting of airplanes. There is a reason for this to happen as reimbursement was paid after the shutting of US airplane subsequent terrorist incidents of 9/11 and obviously the effect of the current circumstance is more significant. The BA shares were among the major fallers in FTSE 100, plummeting just above 3% to-227p. Travel group the Thomas Cook was downwards 4..5 percentage at 249.8p and the easy Jet shares were slated by 5% at 545p and the Tui tour went down almost 4% to 280.4p. British Airways said it has important financial support available to it to maintain a substantial period of shutting of the UKs air industry. In the beginning of the fly limitations on 14 April, it was having above  £1.7bn of hard cash and near about more than GBP 400m in on hand credit line, it can sustain if necessary. It told passengers, those booked to journey on cancelled planes can claim a full reimbursement or book again their journey afterwards. Tui, which is the company at the back of Thomson Holidays and the First Choice, said it is going in loss between 5m to  £6m per day as of the flight prohibit. The interruption resulted from the dust erupted from the Icelands Eyjafjallajokull eruptions has already incurred the holiday agents GBP 20m, and also it said that near about 100,000 of its passengers are stranded globally, and it is not able to fly them home whilst European airlines remains shut down.As for the organisation, this is a phase of somewhat low vacation programmes, but the interruption to our plan will still have a monetary impact, it told. The concern said it provided appropriate help to passengers jammed in their holiday places. Passengers who cant start their vacation because UK aerodromes have been stopped while late last week was been given the option of a recompense from the Tui, or scheduling their trip again .Near about 90 percentage of UK consumers had opted to rebook. Tui also added that it had been working with other dealers and airline companies in a belief that regulators allow the recommencement of flights as early as possible. Tui reported previous month to that it was considering a revival in customer demand as the summer business period comes near. In the previous financial year it made a fundamental profit of GBP 366m, from income of  £13.8bn. http://www.guardian.co.uk/business/2010/apr/19/ba-volcanic-ash-losing-money Discussion As we can see that natural calamities are unpredictable, and cost millions to the companies which depends on weather .In the case of British airways we can see that ash cloud was, such a calamity which coasted not only British airways in millions ,but other airlines too. Particularly in the case of British airways, we can see that, it incurred heavy losses. According to the report by Rob Hull as stated in share prices .com Share prices in the air industry rose late in the market to a close price of 235p after information reports recommended operations from main airports may be backed up and operating at some point . In spite some planes were able to go further on Tuesday morning from north UK aerodromes, The British Airways had to land all of their short haul flights for the 6th successive day because of uncertainty hovering the latest volcanic ash dust. Because of which, BA share drowned again to a low down of 229.30p currently with current prices at 09.15 being 230p and 0.73 % down, with forecasted sum losses 15m to GBP 20m per day for group. British Airways told in the statement former that morning: that they were preparing to function short haul planes scheduled to leave from 7pm, which was later cancelled. They told that they are still hopeful to run long haul planes which were planned to leave after 4pm, Tuesday 20th April, though these leftovers subject to the whole and permanent start of air planes. Another report regarding the possible re-opening of aerodrome from National Air Traffic Service which was due at 15:00 that day with NATS sustaining close contact with the Metrological Office concerning the state of British airdrome. And as they headed to the sixth day of cancelled flights, airplanes and travel companies have reportedly turned to Government for the deals. According to the reports, Travel TUI was GBP 20m downwards with every day bills going up to GBP 6m, Easy jet also lost a sum of GBP 40m until now and the Thomas Cook was supposed to have lost  £7m . All the four groups including British Airways had approached Government for recompense for these enormous losses. Though, Easy jet and the Thomas Cook organisations along with Ryan air were in soptimistic province , with FTSE 100 0.36 % upwards in all 09:40 ,Tuesday ,20th April. TUI share cost, like British Airways , were still downwards but the company had disclosed information by saying that it intends to increase near about 500m of fresh financing through convertible bond and also added bank services. Therefore we can see that, whereas short haul airways such as Ryan air and easy jet were not so much affected by the ash cloud, British airways and Virgin airways, which are basically long haul airlines were heavily affected by this calamity (April2010)RobHull shareprices.com [Adapted from] April 2010, Business week :http://www.businessweek.com/news/2010-04-16/british-airways-virgin-atlantic-may-s uffer-most-from-ash-cloud.html A final thought In a final thought we can say that natural calamities are unstoppable and, companies relying on it has to frame additional plans that can help cope up with busy and anxious situations like this .In the case Of British Airways and Virgin Atlantic, It would be a suggestion to plan with government authorities and financial institutions to safeguard heavy loss during this type of situations