Reasons Why Mayella Ewell is a Dichotomous Character Essay Example for Free

Reasons Why Mayella Ewell is a Dichotomous Character EssayMayella Ewell is a divided person because she is like any other girl that wants to fit in. The one that wants to be something shes not. She wants to be beautiful, accepted, have friends. She is tired of people thinking shes dirty or feeling unwanted, like an outsider. Shes alone in a big room of people and cannot take it anymore. The first reason why she is a dichotomous character is she wanted to be accepted, but she cant because she is unwanted by many people in Maycomb because of her go away name, Ewell. The last name, Ewell is receiven by the people of Maycomb because the Ewells are sloppy and dirty and do not care about anything. So just because shes a Ewell people judge her as dirty and poor, when really she tries to fit in with everyone by cleaning up her appearance and growing flowers. Then, here she goes not know what the word, friend even means.She only had one friend which was Tom Robinson, but she betrays h im by lying to everyone in Maycomb saying he beat her up, when really it was her dad. She does this because she would quite an save her abusive father than saving an innocent black mans life, even if he was nicer than her father. Just these two comparisons do not severalize you why she is a dichotomous character, the last one is very important because she pretty much shows you the main reason why she brayed Tom Robinson. She has this big, careless family that everyone in Maycomb doesnt care for and her she is alone in her own family of nine people. They do not care for her, but she cares for her dad and younger siblings by giving them bullion for ice cream. No one feels her pain except her, and with that pain what makes you think she wouldnt have two different personalities.

City Of Manila.Background of a Smart Designed City Essay Example for Free

City Of Manila.Background of a Smart Designed City EssayThe City of Manila has a population of 1.7 billion people and is considered as one of the or so polluted cities in the world with notorious traffic congestions. The urban center of Adelaide is on the other hand one of the most liveable cities in the world, with a population of 1.2 one million million million and practically no traffic jams at all. This paper compares these two cities in order to establish what manila bum learn from Adelaide. The City of Manila is a relatively small city with a population of about 1. 7 million people and an field of battle of around 40 square kilometres. The city john thus be categorized amongst the overpopulated cities of the world (Townsend, 2013). Consequently, Manila has a very high level of taint and other challenges including traffic and poor drainage system that makes the sanitation very problematic.Background of a Smart Designed CityAdelaide is a south Australian city with a population that is close to that of Manila at 1.3 million people. Initially, this city suffered from high levels of pollution owing to its large population and the energy sources universe used across the city. First, the transport means today are highly effective reducing the traffic jams by 100% and the city is now considered as a twenty minute city owing to the ability to move from one place to another easily (Fajardo, 2011). The cut back traffic jams translate to reduced gas emissions, as do the number of trees planted around schools, churches, parks, reserves, coastlines and transport corridors. These trees have managed to reduce the carbon emissions getting into the atmosphere thus making the city even cleaner. The city is planned very effectively in such a way that the transport systems are effective and diverse comprising of a entropy Eastern Freeway, Southern Express Way, the Port River Expressway and the Northern Expressway. This arrangement allows for effective transpo rt across the metropolitan area thus making the city accessible without unnecessary congestions. The roads are withal mostly very wide with multiple lanes to accommodate the growing number of vehicles in the city.The city has also cut down its use of fogey fuels in favour of renewable energy with a great inclination on solar energy. They have undertaken numerous campaigns to encourage the citizens to install solar panels on their rooftops, with over 200 schools having to depend on this clean energy for their power needs. As such, the city is slowly act to solar energy to sustain its energy needs (Henderson, 2002).From its initial planning in the days of the first settlers, the city was designed to have two common rings around the city square thus implementing the green city initiative right from its birth. As a result, they have over 3 million trees within the city and a few parks and squares with a lot of trees as sound. The green belt here is so extensive that it is rumoured that one can actually feel the fresh air in the city oddly if they are from another part of the inelegant or the world. These trees play a life-size role in keeping the city free of pollution as they mitigate from the effects of the unavoidable carbon emissions.Suggestions for Future Development and Lose equal EstimatesIn order to reach up to Adelaides standards, the city of Milan has to undergo a number of transformations within its layout. First, the citys roads must be reconstructed to accommodate the traffic and reduce the traffic jams. This may cost as much as $100 billion seeing as there is a need for a complete overhaul in the citys transport system. For efficiency, subways may also be found necessary especially seeing as Manila is in a developing country and thus the urban population is likely to keep growing.The green technology in terms of shifting to solar power as a main source of energy must also be considered seeing as the country currently depends on fossil fuels for their energy. This shift should cost the government about $20 million in equipment and education programs about how to use them as well as their alimony (Townsend, 2013). In doing this, the city bequeath have cut down on pollution seeing as the dependence on fossil fuels is by far the most hazardous human tendency.As for planting trees and creating a green city, it should be noted that the best trees in Manila can be sourced locally and should thus be relatively cheap. The challenge however would be the sensitization of the masses in order to gain their support and cooperation for maintenance of the trees. It can thus be estimated that the local government will need about $5 million for this project and with the cooperation of the citizens and the private sector the city should fling for a smart city categorization within approximately 30 years from the implementation date (Townsend, 2013). For this to happen however, the citys administration will have to obtain the support and cooperation of the general public and the private sector.ReferencesFajardo, B.K. (2011). Filipino crosscurrents. University of Minnesota Press Minneapolis, MN.Henderson, V. (2002). Urbanization in developing countries. The World Bank question Observer, 17(1), 89-112.Townsend, M.A. (2013). Smart cities big data, civic hackers, and the quest for a new utopia. New York, NY W. W. Norton Company.Source document

Intercultural Communication Advantages and Disadvantages

Inter cultural Communication Advantages and DisadvantagesIntercultural CommunicationImplicationIntercultural communication is defined as situated communication in the midst of individuals or groups of various linguistic and cultural origins (Millar, n.d.). Communication is the active dealingship established amid good deal through spoken language, and intercultural means that this communicative relationship is between people of different cultures, where culture is the structured manifestation of human behavior in social life within specific national and local contexts (Millar, n.d.). Hence, in this happens, if communication does not proceed smoothly or have some misunderstanding, people may tend to make implicit judgment that the otherwise psyche does not know how to act appropriately or is not a good individual (Matsumoto Juang, 2007).However, people from different society, cultures, and countries interact with for each one other in the exchange process (Yearwood, 2012). S o, planetaryization became an important for higher education in the new century (Yearwood, 2012). This is because people believe incorporating an intercultural into the teaching and other functions of the institution, accordingly the constitutional environment of the institution shifts to that of an international one, whereby it is aligned with international protocols, and its national as well as international standards are strengthened (Yearwood, 2012). Besides that, people impulsive to undefended to the challenge, it can help to increasing interacting with those who may not share the same cultural and social norms (Mckeiver, 2013). Intercultural interactions append benefits, but only if we are open to confronting the barriers that may hinder our success (Mckeiver, 2013). About this, some schools are more welcoming internationalization, because of the many benefits it offers them such as they are able to build their news report as a world-renowned institution and recruit int ernational students (Yearwood, 2012).AdvantagesEffective intercultural communication is vital to not only the establishment, but alike the maintenance of positive intergroup relations (Yearwood, 2012). Thus, people must see themselves as possibly engaged in communication and capable of giving and receiving feedback (Yearwood, 2012). For example Muslims strong sense of community, spirituality and cordial reception are oft cited qualities of virtue (Payne, 2006). Similarly Muslims worldwide regularly praise the Wests technological achievements, respect for equality before the law and queuing (Payne, 2006). Apart from that, both sides as well share similar principles, ideas, and other (Payne, 2006).Besides that, people are believed these factors to be critical to intercultural communication competence, it can increased cultural knowledge and awareness, communication skills, and perimeter for ambiguity (Yearwood, 2012). For example students who engage in intercultural interactions t end to experience gains in communication skills, the ability to empathize and openness to new ideas (Mckeiver, 2013). Moreover, intercultural interactions also increased individuals likeliness to challenge personal beliefs and embrace new perspectives and allows us opportunities to practice variations of our intercultural advising style in roam to see what works is better for students (Mckeiver, 2013).DisadvantagesHowever, intercultural communication may provide cons. Sometimes, international students experience feelings of uncertainty and anxiety virtually how to integrate into their host society (Yearwood, 2012). International students often question the deeds that prescribe social norms, in their host country and whether or not they are adhering to these norms (Yearwood, 2012). In regards to international students, all of these differences, between the host country and their country of origin, can result in incompatibility among students, intercultural conflicts, and social al ienation (Yearwood, 2012). Furthermore, some findings suggest that some schools may express concerns about issues such as a students language ability, they tend to lack empathy for the life challenges students are experiencing, including their emotional and psychological well-being, but some schools did not consider their role in contributing to these behaviors, and instead infernal the students for lacking critical thinking skills and other negative things (Mckeiver, 2013).Besides that, if it is the culture of the host country or dominant society to marginalize minority groups, then the minority groups will have less successful relationships and more conflicts in their interactions (Yearwood, 2012). For example, in an experiment, some American students reaction to international students is willing befriend with internationals students, bit others will not (Yearwood, 2012). Moreover, research also found the domestic staff and students exhibited greater prejudice against internatio nal students by thinking of them as sad, lonely and other negative words (Mckeiver, 2013). The level of prejudice varies depending on the students home country (Mckeiver, 2013). So, when students lack confidence in their communication skills, or intenational students veneering the experience of negative interactions with the host culture, international students may be unwilling to seek guidance when they need it (Mckeiver, 2013). So, it will provide cons of intercultural communication in international students.RecommendationIntercultural Communication refers to communication between people of different cultural background (Matsumoto Juang, 2007). Its means people from another culture bring with own vocal language. Thus, if communication does not proceed smoothly or have some misunderstanding, people may tend to make implicit judgment that the other person does not know how to act appropriately or is not a good person (Matsumoto Juang, 2007). Moreover, Intercultural Communication may provide benefit in society. For example, if people who willing to confronting the barriers of intercultural communicaton, it can help to increasing interacting with those who may not share the same cultural and social norms (Mckeiver, 2013). Besides that, it can also increase cultural knowledge and awareness, communication skills, and tolerance for ambiguity (Yearwood, 2012).On the other hand, for international students, all of these differences, between the host country and their country of origin, can result in intercultural conflicts, and social alienation (Yearwood, 2012). Besides that, international students also more exhibited greater prejudice in the host country (Mckeiver, 2013).Therefore, improving the intercultural communication may be able to deal the cultural shock.Experience different cultures regularly can improve the intercultural communication. About this, traveling is the best way to inspire curiosity about other cultures (Mcmahon, 2011). People visiting differ ent kinds of restaurants can also exposure to different cultures (Mcmahon, 2011). Furthermore, join the social groups for international professionals or even attend plays, or watch movies that are from another culture also will increase the variety of cultures that people encounter in the daily life (Mcmahon, 2011).Lastly, involvement of others also is one of the ways to improve the intercultural communication. People should be always ensuring that members from other cultural backgrounds are involved in daily communication in order to learn and understand each others cultures (Brown, 2013). For example, Working together with members of other cultures breeds an ease with them (Brown, 2013). This gives rise to a common ground to understanding each other, the way each person communicates and how they use non-verbal communication (Brown, 2013). Besides that, involvement of others helps the understanding of the context of usage of certain words and symbols and helps one to understand how different messages are interpreted by different communities (Brown, 2013).

Waitroses Brand Expansion

Waitroses Brand ExpansionIn 2000, Waitrose purchased 11 stores from rival Somerfield. During 2004, in order for Morrisons to come upon competition regulations following its accomplishment of Safeway, Morrisons had to sell 52 of the Safeway stores. The first batch of 19 stores were sold to Waitrose.In August 2005 Waitrose purchased a further five causality Safeway stores from Morrisons. This took the firm as far north as Durham (now closed), fitting with its long term strategy to evolve into a national retailer. In declination 2005, Waitrose withal bought another store at Biggin Hill, south east London, from Morrisons.In March 2006, Waitrose announced the purchase of five additional branches, including two branches in Edinburgh, fit(p) in Comely Bank and Morningside. The other three locations included Balham in South West London, Barbican in the City of London and Buxton in Derbyshire.In July 2006, Waitrose announced it had purchased another six stores from Morrisons and also a originator Safeway regional distribution centre in Aylesford, Kent combusting Waitrose to 182 stores. The six stores which were rebranded into Waitrose are located at Hexham in Northumberland, Eastbourne in East Sussex, Formby in Merseyside, Parkstone in Poole, Dorset, Lymington in Hampshire and Portswood in Southampton, Hampshire. Since Morrisons began selling Safeway stores in order to meet competition regulations, Waitrose had purchased 31 stores from Morrisons since 2000 and 16 from Somerfield.In 2007 four modern Waitrose branches loose, the first of which subjected in Harborne in Birmingham. This was followed by Cheadle Hulme, Greater Manchester in July. The company also revealed plans to extend and refurbish a number of branches.During 2007, Waitrose opened branches across the United Kingdom including Ampthill, Bedfordshire, replacing a Budgens store in September, a second Waitrose branch in the South at College Town, Sandhurst, Berkshire in November and also a newly bu ilt branch in Rickmansworth, Hertfordshire.In March 2008, three branches were purchased from Budgens, in Buckingham, Bayswater, in West London. The same year, branches opened in Cardiff (Pontprennau), Crewkerne, Kenilworth, Newcastle upon Tyne, washcloth City (Westfield London), Chiswick, Clapham, Edgware Road (the latter three purchased from Woolworths) and Nottingham. A Waitrose store in Banstead was destroyed by fire in December 2008.In June 2008, Waitrose announced the acquisition of four Woolworths store sites for conversion to Waitrose branches in Chiswick, Battersea (Clapham Junction), Edgware Road (Marylebone) and Chapel Market, Islington. All these stores are now trading.In January 2009, Waitrose announced that they had acquired 13 sites from The Co-operative Group to be born-again into Waitrose branches in Bridport, Dorset Headington, Oxfordshire Haslemere, Surrey Saxmundham, Suffolk Ponteland, Northumberland, Croydon, Surrey Upminster, Essex Stamford, Lincolnshire Holsw orthy, Devon Alcester, Warwickshire Torquay, Devon Caldicot, Monmouthshire/Sir Fynwy Leigh-on-Sea, Essex as well as building another nine branches to make a total of 22 new branches.On 12 November 2009, Waitrose opened a new branch on Byres Road in Glasgow. This is after having purchased the preceding Somerfield store in this location. This is the first Waitrose branch situated in Glasgow. overly, a former Somerfield store in Stamford opened in June 2009.Waitrose cited it was the largest expansion in the history of the company, by adding 4,000 partners and increasing to around 220 supermarkets.Waitrose has entered into a licensing agreement with Spinneys of Dubai, United Arab Emirates to open three purpose-built branches, of which the first opened in the Dubai Mall in October 2008. Spinneys will convert 20 of their own stores to the Waitrose format by 2010. The company has a long term goal of opening 400 branches across the UK by 2017 and doubling its revenue to 8bn by 2016.Recent developmentsWaitrose is involved in a new scheme to operate food halls in key stores of sister chain John Lewis. The stores are officially branded as John Lewis Food hall and use of the Waitrose brand is limited, but the stores do carry some Waitrose own-brand product lines. The staff uniform is also different to that of Waitrose. The first John Lewis Food abode opened at the flagship London Oxford Street department store in October 2007 a second opened at the Bluewater branch in August 2009.Also in early 2009, following a fire which destroyed a Waitrose main store in Banstead, Surrey, Waitrose took up temporary residence in the towns former Woolworths store, vacated as a result of Woolworths collapse. The store was smaller than the damaged site but allowed Waitrose to maintain its front man in the area until the rebuilt main store re-opened on 26 November 2009.In April 2009, Waitrose announced a franchise deal with Welcome Break (a motorway service area operator). The two Waitro se stores which are the smallest stores in the confederacy opened at Welcome Break services in Oxford and South Mimms on 1 and 15 May 2009 respectively.In Autumn 2009, Waitrose announced plans to expand its presence in the convenience store sector after successful trials of the format. These stores are smaller than the main Waitrose stores but allow the chain to retail a selection of keynote ranges in areas where there is not a suitable site for a large Waitrose supermarket. The firm also plans to expand on its presence at Welcome Break service stations. The firm has also signed a deal with Alliance Boots which will see Boots operating branded pharmacies and sell health and beauty products through Waitrose stores in return Boots stores will sell Waitrose food products.

Population Genetics (Molecular Epidemiology) of Eukaryotes

Population Genetics (Molecular Epidemiology) of EukaryotesINTRODUCTIONThe study of the molecular epidemiology of parasitic infections and their vectors is meant to answer the same kinds of questions as those of bacterial or viral infections. As with bacteria, the molecular epidemiology of eukaryotic infections follows the distri plainlyion and dynamics of microbial DNA. The key difference, however, is precisely this biology, which defines a distinct approach to molecular epidemiological investigation of infections caused by eukaryotic organisms. In bacterial copy, all(prenominal) individual passes down an identical copy of any the DNA to the next generation. several(prenominal) eukaryotic pathogens be eat reproductively in convertible ways to bacteria and reproduce asexually, while others gull sexual reproduction for at least part of their life-cycle. The individual is able-bodied to generate a clone of itself by binary fission to produce cardinal identical organisms, and if successful, depart produce large tours to the detriment of its host. asexually reproducing organisms faeces also picture promiscuous horizontal gene transfer, which can be a major source of variation and adaptation (19), but this is non sex. Sex is the biologically necessary programmed recombination (crossing over) and random shuffling (reassortment) of chromosomal DNA in the process of reproduction. This results in an enormous reservoir of variation. Bacteria in constitution ar heterogenous conglomerates or communities (13, 19), but when they cause ailment, especially in epidemics, it is generally a clone that is responsible and that we track (Chapter 2). Sexual reproduction in some protozoa, many parasitic worms and closely vectors, however, never results in a clone with the exception of identical twins. There is genetic conservation, however, within a classify of organisms that tends to breed together. In genetics, this is the working description of a world. For sexu ally reproducing organisms, the population is the epidemiologic unit to track. Within the group, allele frequencies and thus traits be conserved downstairs well-defined conditions. The unique power of the genetics of populations is that it reflects non only present individuals but also the populations past and the future potential for subsequent generations (5). Many parasites exhibit both sexual and asexual modes of reproduction, but these life stages are distributed in antithetical hosts. Treatment of their molecular epidemiology is doubly complex, but can be alter for some questions by considering their biology just in the human host. The whole field of population genetics is perhaps the most complex area of genetics, but it arises from simple precepts. This chapter will outline the basic models used in population genetics and are direct applicable to problems of public health epidemiology.KEY POINTS vegetative reproduction usually produces a clone sexual reproduction neve r does.A population is a group of organisms that tends to breed togetherAllele and genotype frequencies describe populationsAllele frequencies and traits tend to be maintained within groups of interbreeding organisms (derived from the Hardy-Weinberg equilibrium)Allele and genotype frequencies can be used to infer population historiesIndices and statistics can be used to compare assess population history and to project population dynamicsDEFINING GENOTYPE IN EUKARYOTIC ORGANISM Some terminals whitethorn not be familiar to some readers, so it is significant to define these early. One of the dividing lines between bacteria and sexually reproducing parasites and vectors of human disease is their physical structure and organization. Sexually reproducing organisms will pass some portion of their life cycle where their chromosomes (Figure 5.1) exist as nearly identical pairs (diploid). Some organisms, malaria in particular, also have only one copy (haploid) during their asexual stage, and this is the stage that infects humans. A similar location on each of the chormosomes is a locus, and differences between loci are alleles.The geometry of DNA also strongly differentiates bacteria from eukaryotes (Figure 5.2). Prokaryotes have a single1, circular chromosome whereas crimson the simplest eukaryotes, yeast, have at least 16 linear chromosomes. A particular marker on a bacterial chromosome will always be transmitted at reproduction together with any other marker or trait. The same also occurs with an asexually reproducing eukaryote despite having multiple linear chromosomes. A marker on the genome of a sexually reproducing eukaryote, by contrast, will have a 50% chance of being transmitted away from any marker it is not very close to. The labeling of each allele present at the same locus on each chromosome constitutes the genotype. A locus with the same polymorphism at the same site on each of the chromosome is homozygous, and with a different polymorphism is heter ozygous.Figure 5.2OPTIONS FOR MOLECULAR EPIDEMIOLOGY OF EUKARYOTESStudy asexual parasitesUse a marker close to the trait of interest (if known)Use many markers throughout the genome or sequenceStudy the whole group of organisms in which the trait is present (population)HARDY-WEINBERG EQUILIBRIUM THE POPULATION NULL HYPOTHESISPopulations have a mathematical definition ground on allele frequencies, which ultimately contributes to the development of tools for key measures of preeminence and diversity. Allele frequencies can differentiate populations, and genotypic frequencies can do so with even greater answer. The relationship between allelic frequency and genotypic frequency has a simple mathematical relationship which is the definition of a population. If we use the letter A and a to represent different alleles at a single diallelic locus and p and q to represent their respective frequencies, a population with p=0.8 and q=0.2 is clear different from a population where p=0.2, q=0 .8, especially where this kind of result is found at multiple loci. Allele frequencies are not always the most sensitive measure of specialism. The same allele frequency may still be found in what are clearly distinct populations if assessed for genotypic frequencies. Alleles corporate trust to form genotypes, so the genotypic frequency is a function of the allelic frequencies. For a diallelic locus where we know the frequency of each allele, the sum of these frequencies is 1 or (p + q = 1). For sexually reproducing organisms the next generation arises from the combination of alleles from a pool of males with alleles from a pool of females. If we imagine that individuals from these pools will pair at random, the subsequent distribution of alleles in genotypes is equivalent to rolling a pair of dice. For independent, random events the probability of 2 events occurring simultaneously is the product of their frequencies (p + q)female (p + q)male = 1. The genotypic frequencies of the offspring for such a population should be p2 + 2pq + q2, if all assumptions are met, where p2 and q2 are the frequencies for the homozygotes and 2pq the heterozygotes. This is the well-known Hardy-Weinberg equilibrium (HWE). This simple quadratic equation is the basis for all population genetics even when it is not thrifty directly. It represents the expected genotypic frequencies from a given stack of allelic frequencies. It is one of the most stable mathematical relationships in nature. It is so much the expectation that when not observed in sequencing projects, it can suggest sequencing errors. It is the null hypothesis and mathematical definition of a stable population. The relationship HWE describes is true under a set of 5-10 assumptions that represent the most important factors that influence population genetic structure. The 5 most common assumptions are that there is1) Random mating (panmixia, assortative mating)2) No endurance3) No migration4) An infinite population5) N o regenerationIt is rare to have any of these assumptions met in nature, but the proportions are so resilient that the assumptions have to be severely violated to disturb this relationship, and even so, the proportions will be reestablished within 1-2 generations once the population is stabilized. As with most models, the underlying assumptions are the most important aspects. They are the basis for most conversations in population genetics.MARKERSMicrosatellites, single nucleotide polymorphisms (SNPs) and sequencing are currently the genetic elements most employed in population genetics. Microsatellites are short tandem repeats of 2-8 nucleotides (reviewed in Ellegren, 2004 128). Microsatellites have fallen out of favor in studies of statistical genetics or gene finding, since SNPs and sequencing provide better resolution at the level of individuals. Microsatellites, however, remain important in population genetics since they are mostly neutral for selection and have higher allelic birth rate and information content. Their rapid mutation rate (10-2 10-5 per generation) and step-wise mode of mutation can limit their application to questions that extend over short time scales and to certain statistical approaches. SNPs have lower rates of mutation (10-8) in eukaryotes, often are diallelic, are ten times to a greater extent abundant (10, 22) and have high processivity and scorability. Sequencing basically provides a very dense panel of SNPs and identifies rare variants as well as structural polymorphisms. Mitochondrial and ribosomal DNA markers are much less abundant, less polymorphic and thus less informative than microsatellites or SNPs. Some are under selection and in the case of mitochondrial DNA, the genome is haploid (only 1 copy of chromosomal DNA) and may or may not have sex-specific inheritance depending on the species. They are useful for phylogeny studies, may be more economical to use in laboratories with limited capabilities and are sometimes com bined with other markers.MEASURES OF DIFFERENTIATION AND DIVERSITYAreas most often addressed using population genetics are development and conservation. These two areas deal with essentially the same phenomenon, but at different time scales, thus the questions, the approaches and the interpretation will differ depending on the nature of the problem. The germane(predicate) public health questions in population genetics focus on identity and dynamics of the group rather than individuals over short time scales and tell at the control or extinction of a parasite or vector. Whos sleeping with whom, modes of reproduction, evolution or the last common ancestor are all important in different context of uses. They may be useful to help explain anomalies and can influence interpretation, but they are rarely answers to issues of control or intervention. Understanding how diverse a population is or the degree of difference between populations combined with good study design will contribute directly to determining the impact of control measures, host or parasite demographics, resistance, risk and resilience or fragility of the population.The field of population genetics depends heavily on mathematical analyses, some simple and some very sophisticated, to answer these questions. Mathematical treatments of all of the indices and statistics of differentiation and diversity can be easily obtained from textbooks or publications and will not be included here. Fortunately for the mathematically challenged, many open source, individual computer programs are available as well as modules in R. The risk that goes with all readymade programs is a failure to understand what is being asked or the assumptions and limitations of the approach being taken. A list of some frequently used programs is provided at the end of this chapter (Table 5.1).POPULATIN DIFFERENTIATIONFST, GST, GST In addition to the Hardy-Weinberg equilibrium, populations can be further differentiated by other statis tical tests. This is a family of statistics developed as the holdfast index (FST) in the 1950s by Sewell Wright and Gustave Malcot to describe the likelihood of homozygosity (fixation in the terminology of the time) at a single diallelic locus based on heterozygosity of a subpopulation compared to the total population. Theoretically, values should range from 1 (no similarity-every individual is genotypically different) to 0 (identity-every individual is genotypically same). Nei (16) extended the FST to handle the case of more than two alleles and developed the GSTLR1. Although the term FST is often used in the literature, formally most studies today will employ the GST. When highly polymorphic loci, such as microsatellites, are genotyped, the GST severely underestimates differentiation and will not range from 0 1. Hedrick (11) adjusted the range of values for the GST by dividing it by its maximum possible value given the markers used. This is the GST. The GST makes possible the m ount range of differentiation. FST and GST relate to inherent properties of populations and contain evolutionary information lost by the GST transformation. FST-like measures have been and continue to be widely used to describe population structure, and their characteristics and behavior are well-known. There are additional related statistics (e. g. ST (4), AMOVA, RST (20), (25)), that address other aspects of differing genetic models, unequal sample sizes, accounting for haploid genomes, mechanism of mutation and selection.D. LR2This is sometimes referred to as Josts D, since there are numerous other Ds related to genetics and statistics. There can be logical inconsistencies for estimating differentiation based directly on heterozygosity. Ratios of pooled subpopulation to total population diversities tend toward zero when the subpopulation diversity is high (12). Josts D is based on the effective allele number (see infra). unalike those based directly on heterozygosity, it has th e property of yielding a linear response to changes in allele frequencies and is independent of subpopulation diversity. Unlike FST, GST and similar indices, Josts D does not carry information relevant to the evolutionary processes responsible for the present composition of a subpopulation. It is described by supporters and detractors as purely a measure of differentiation (26). It was never meant to do more.Whitlock provides one of the best comparisons of these 2 approachesThis (Josts) D differs from FST in a fundamental definitional way FST measures deviations from panmixia2, while D measures deviations from total differentiation. As a result, their denominators differ, and thus, the two indices can behave quite differently. D indicates the proportion of allelic diversity that lies among populations, while FST is proportional to the variance of allele frequency among populations. D is more related to the genetic blank space between populations than to the variance in allele frequ encies it may be preferable to call D a genetic distance measure (26).There has been controversy about the use of these different types of indices. There should not be. They clearly address different questions and resolve different analytic problems. It should be recognized that the GST and Josts D yield fairly similar results when the number of populations is small and the markers have a small number of alleles. The GST and Josts D have given similar results in our own studies using microsatellites (2) and in simulation (26) with GST values slightly higher than those of Josts D. Some authors recommend calculating both GST and Josts D, in part to quit everyone and in part to obtain the useful information about population diversity their departure may provide.In relation to public health, most questions about parasites and vectors deal with near term events of DIVERSITYDiversity like differentiation has myriad formulations and interpretations. The simplest expression is mean hetero zygosity (H). For microsatellite data this is usually high due to the in and of itself high mutation rate of these markers, and markers with higher variability are usually selected. Allelic richness (Ar) is simply a count of the number of alleles at each locus. Differences in sample size will necessarily result in differences in allele number. This is usually adjusted for by statistical methods such as rarefaction (15) to standardize sample sizes between comparison groups. The effective allele number (Ae) is also a measure of diversity, but is already adjusted for sample size. It represents the number of alleles with equal frequencies that will produce the same heterozygosity as that of the target population.The most informative measure of diversity is the effective population size (Ne), a innovation also introduced by Sewell Wright. It is designed to address the essential reason that diversity is important, namely, it reflects the strength of genetic drift. Genetic drift is the e ffect of random transmission of alleles during reproduction to succeeding generations. When numbers of reproducing individuals are small, the genetic composition of the population of offspring can differ by chance from what is expected given the composition of the parents. If two coins are flipped, it would not be that unusual for both to come up heads. If a thousand coins are flipped, the ratio of heads to tails will always be very near the expected 5050 ratio. Genetic drift is stronger when populations are small or reduced, and weakens the strength of adaptive selection.Like differentiation, there are several formulations for Ne that can provide different values and are designed to measure different aspects of the population. The breeding Ne is the probability of identity by descent for two alleles chosen at random. It is a retrospective assessment of population diversity. The variance Ne assesses the variance of the offsprings allele frequency, and is thus forward looking. It mea sures youthful population changes that affect its genetic composition. Ne can represent the number of actively breeding individuals in the population or the number of individuals in an standard population needed to reconstitute the diversity in an actual population. It is almost always less than the census population (Nc). It is a key value in conservation genetics and population genetics in general, since it reflects the history and future potential of a population. Increasing drift (decreasing Ne) tends to neutralize the force of directional selection, permits safekeeping of deleterious mutations and hampers the ability of populations to adapt to stresses (9).Despite its importance, Ne can be difficult to estimate in wild populations due to uncertainties of the demographic, genetic and biological context (17, 24). It can be affected by sample size, overlapping generations, sampling interval, sex ratios, gene flow, age-structure, variation in family size, fluctuating population size or selection. Increasing the numbers of markers is less important than large samples for accurate estimates as much as 10% of the Ne has been recommended Palstra, 2008 84. Its interpretation can also be uncertain. Estimated Ne has been used as an aid in predicting extinction using the concept of a borderline viable population size. Some have suggested that at an Ne of 50-500 a population will experience extinction in the short- or long-run (7). Others have argued that this faculty occur at Ne = 5000 (14). magic spell it is clear that lack of diversity has an impact on extinction (21), it is also clear that there cannot be a universally accepted number for the minimum viable population size (6, 23). In any case, theory suggests that there is a number defined by the amount of genetic drift below which populations are likely to go extinct on their own. The range for this number is context-specific and will require multiple species-specific studies under multiple conditions. Thi s kind of analysis might contribute to developing a stopping rule as control measures approach elimination. 1 Leptospira spp. are an exception with 2 circular chromosomes.2 The condition where all individuals have an equal opportunity to reproduce with all other individualsLR1G?LR2Does it stand for something?

Global Threat Assessment Essay -- Global Threat Intelligence

I. IntroductionThe United States is in an era where technology is advancing at a quicker pace than the education of society and its users raft understand. This is a problem because the economic woes and critical fundaments are included in every aspect of this fast paced development of technology. Threat topics will be discussed use multiple sources from the Internet and online library. An additional main source will be pulled directly from reports from the Director of National Intelligence, mob R. Clapper. Discussions will Start with what a panic is and how a threat is assigned into categories then moving to a discussion about the spheric threat decorate and which areas are critical to the United States shall be talked about along with what is necessary for the United States to keep up with the rapid pace of growth. At the top of the U.S. knowledge communitys 2013 assessment of global threats is cyber, followed by terrorism and transnational organized crime, weapons of mass destruction proliferation, counterintelligence and space activities, insecurity and competition for natural resources, health and pandemic threats, and mass atrocities (Defense.gov News word Cyber Tops Intel companys 2013 world(prenominal) Threat Assessment, n.d., p. xx-xx). Another topic that shall be discussed is critical infrastructure requirements and how cyber security is an important aspect in the planning and maintenance. Further discussion will identify what state and non-state actors are and which state and non-state actors threaten the United States. With this information, a conclusion on how these global threats travel how the policy makers try to defend the United States from these types of global threats. II.Whic... ...forcement, and Federal Protective Service.Policy makers are responsible for perform a never ending project of adapting to the global threats and how they pertain to critical infrastructure in the United States.Works Cited2013 Global Threat Intelligence Solutionary beseech Release. (n.d.). Retrieved from http//www.solutionary.com/news-events/press-releases/2013/03/2013-global-threat-intelligence/Defense.gov News Article Cyber Tops Intel Community?s 2013 Global Threat Assessment. (n.d.). Retrieved from http//www.defense.gov/news/newsarticle.aspx?id=119776Top 7 developments in the global threat landscape - CXOtoday.com. (n.d.). Retrieved from http//www.cxotoday.com/ storey/top-7-developments-in-the-global-threat-landscape/USA Patriot Act of 2001. (2001, Oct. 26). Retrieved from http//www.gpo.gov/fdsys/pkg/PLAW-107publ56/pdf/PLAW-107publ56.pdf Global Threat Assessment Essay -- Global Threat IntelligenceI. IntroductionThe United States is in an era where technology is advancing at a quicker pace than the education of society and its users can understand. This is a problem because the economic woes and critical infrastructures are included in every aspect of this fast paced evolution of technolog y. Threat topics will be discussed using multiple sources from the Internet and online library. An additional main source will be pulled directly from reports from the Director of National Intelligence, James R. Clapper. Discussions will Start with what a threat is and how a threat is assigned into categories then moving to a discussion about the global threat landscape and which areas are critical to the United States shall be talked about along with what is necessary for the United States to keep up with the rapid pace of growth. At the top of the U.S. intelligence communitys 2013 assessment of global threats is cyber, followed by terrorism and transnational organized crime, weapons of mass destruction proliferation, counterintelligence and space activities, insecurity and competition for natural resources, health and pandemic threats, and mass atrocities (Defense.gov News Article Cyber Tops Intel Communitys 2013 Global Threat Assessment, n.d., p. xx-xx). Another topic that s hall be discussed is critical infrastructure requirements and how cyber security is an important aspect in the planning and maintenance. Further discussion will identify what state and non-state actors are and which state and non-state actors threaten the United States. With this information, a conclusion on how these global threats affect how the policy makers try to defend the United States from these types of global threats. II.Whic... ...forcement, and Federal Protective Service.Policy makers are responsible for performing a never ending task of adapting to the global threats and how they pertain to critical infrastructure in the United States.Works Cited2013 Global Threat Intelligence Solutionary Press Release. (n.d.). Retrieved from http//www.solutionary.com/news-events/press-releases/2013/03/2013-global-threat-intelligence/Defense.gov News Article Cyber Tops Intel Community?s 2013 Global Threat Assessment. (n.d.). Retrieved from http//www.defense.gov/news/newsartic le.aspx?id=119776Top 7 developments in the global threat landscape - CXOtoday.com. (n.d.). Retrieved from http//www.cxotoday.com/story/top-7-developments-in-the-global-threat-landscape/USA Patriot Act of 2001. (2001, Oct. 26). Retrieved from http//www.gpo.gov/fdsys/pkg/PLAW-107publ56/pdf/PLAW-107publ56.pdf

Writing :: Personal Narrative Writing Education Essays

WritingMountains are tall. If you are stupid enough to jump off one you fall fast and you land hard. The five-paragraph cornerstone is my mountain and I have just jumped unspoilt off it. There dont seem to be any outcroppings to grab for, and my assignment is to discuss my cliff as I continue to drop from it. So I will non grab. I will let myself fall, and hope for pillows at the end. I feel baffled without my introduction to conclusion formula started at the beginning of this paper. Why do I have to do this assignment? Oh, I understand that I exact to break a mold that has been added to, layer upon dreadful layer, for the past eight years or so. The only problem isHOW? I think that what I am feeling is not unique to me, and that the instructor will more than likely read these same words a dozen times in new(prenominal) fonts. I do not want to spend my entire paper feeling sorry for myself and wasting paper complaining that the answer to my question is not right under my nose. I would pity my reader. I would also hope that I am a stronger writer than that. Strong writers should be able to nail beyond the theme. I propose that the theme is no more than a weak writers response to demands tired English instructors put on them, or a Lazy Writers cop out. The theme is easy. We know how it works and we crank it out like so many machines. My question is this what normal everyday Joe in his right mind would not take the easy route to writing a paper? There is no reason to make things harder than they have to be, especially when the teacher will spend a minimal amount of time on whatever you write, whether it took you five minutes or five hours. Lots of readers like to be spoon fed, and the theme is a handy ladle. Its when you try to pour directly from the sauce pan that you are Getting Beyond The Theme. The only time I have ever Gotten Beyond The Theme is on those rare occasions where I get a burst of creativity in class or at home, and the grades I usually get on these Creative Masterpieces are mediocre at best. I must have forgotten my parachute.