Thursday, October 31, 2019

Essay 4 Example | Topics and Well Written Essays - 500 words - 4

4 - Essay Example the minority) have to share and distribute to those without, and yields are also continuing to drop as the price of fuel needed to transport the crops to various areas increases with reduced fossil fuel. According to the national geographic article by Bourne (2009), this reduction in the food culminated with the increasing population will in future lead to severe food shortage as the production and the distribution continues to dwindle by the day. 2. What are the pros and cons of large scale monoculture farming? Be sure to include its impact things like soil, water, air, nutrient availability, ecosystem services, climate change, disease and pests, etc. Monoculture is the planting of only one type of crop on large tracts of land for industrial purposes (Despommier, 2009). There are several disadvantages associated with this type of agriculture. Since the crops are wanted to yield more as they are for large scale use, there is an increased use of pesticides, herbicides, fertilizers and other chemicals all of which end up harming the soil and even reducing the nutrients available in the soil. Nutrients availability is also reduced as most of the crops in monoculture (which include tea, trees, soya and sugarcane among others) do not provide nutrients to the soil when compared to the diversity of crops planted by small scale farmers. Water is mostly contaminated by the chemicals making it not consumable. The advantage of this type of farming as explained by Despommier (2008) is the reduction in diseases and pests as a result of the constant pesticide and herbicides used. As most of the crops are trees, there is reduced wind and soil erosion as well as a reduction in the carbon dioxide which is an advantage to climate changes and reduces global warming. The air is also fresh and cold which is good for the ecosystem. 3. What are some large scale and local scale solutions to providing food, minimizing impacts on ecosystems, enhancing ecosystem services, and building

Tuesday, October 29, 2019

Analysis of complex sentences of wals info French features 122, 123, Essay

Analysis of complex sentences of wals info French features 122, 123, 124, 125,126,127,128 - Essay Example hat are often coded in special ways using semantic case, case affix or an adposition instead of the grammatical case marking that is used in marking core arguments (Dryer et al. 123). While oblique objects are rarely the target of syntactic rules such as strategies on relativization, languages of the world use different strategies in relativizing the obliques. Apparently, French uses the relative pronoun strategy in relativization of the obliques. Different suprasegmental and morphosyntactic are used to ensure that the head noun functions as a noun while still playing some role in relativization. Moreover, the relative clause connects the pronoun or noun to the main phrase or clause. Example; A subject compliment is simply described as the pronoun, noun or adjective that trails the linking verb (Dryer et al. 124). The syntax of want keeps changing and the notional subject of its complement predication may be left implicit when coreferential wityh the wanter or expressed overtly in the complement phrase using pronominal elements. Evidently, as the complement subject is left implicit, special verb verbs including infinitives in articulating the verb ‘want’ into the construction. This is often the case in world languages with morphology. A purpose clause is basically a subordinate clause that investigates ‘for what purpose’ or ‘why’ the main clause verb was done (Dryer et al. 125). Noteworthy, a purpose construction encodes a relation between events such that the linked event, often coded by the main clause, is performed with the intention of realizing the other, which is often coded by the purpose clause. Purpose clauses constructions are commonly classified as either balanced or deranked. ‘When’ clauses are not defined in morphosyntactic terms but are rather defined in functional terms. According to Dryer et al., â€Å"A ‘when’ construction is regarded as one encoding a temporal relation between two events, such that there is a temporal overlap

Sunday, October 27, 2019

Social Media And The Small Business

Social Media And The Small Business Social media has gained significant momentum as a business tool in the past five years. In the following study will analyze how selected small businesses currently use social media, how the businesses may expand the use of the social media medium and precautions small businesses should consider when utilizing social media. The business owners interviewed for the research study vary in their product and service offerings: personal training, music, systems consulting and a karaoke machine retailer. The conclusion of the research will include recommendations for how small businesses may consider the utilization of social media as a strategy to gain or maintain competitive advantage. Social Media and the Small Business Purpose of the Report Social media outlets such as Facebook, LinkedIn, MySpace and Twitter have widespread, worldwide popularity. According to Facebooks Press Room statistics, there are over 300 million Facebook active users worldwide, and more than six billion minutes are spent each day, by users, online (Facebook, 2009). The allure of social networking is tremendous, making it possible for people to connect globally, with ease and free of charge. Many small businesses utilize social media as a marketing tool because it costs nothing and it reaches a large audience. The purpose of this study is to reveal the strategic implications social media and networking provide for small businesses seeking competitive advantage. The research team will first analyze how social media advertising differs from traditional marketing and advertising. Interviews conducted with four small businesses, currently using social media sites, will identify how they currently use social media in terms of marketing. The conclusion o f the report will include recommendations for how small businesses should utilize social media for competitive advantage. Background of the Topic In order to conduct a study on social media and networking, the concept of social media and social networking must first be defined. S. Boyd, of Socialmedia.biz states, Social Media are those forms of publishing that are based on a dynamic interaction, a conversation, between the author and active readers, in contrast with traditional broadcast media where the audience is a passive consumer of content' (Boyd, 2009). Through the social media platforms, such as Facebook.com, MySpace.com, LinkedIn.com, and Twitter.com, users create connections, or networks, as further explained by Laudon, Social networking is the practice of expanding the number of ones business or social contacts by making connections through individuals. Social networking sites link people through their mutual business or personal connections, enabling then to mine the friends (and their friends friends) for sales leads, job-hunting tips, or new friends. MySpace.com. Facebook.com, and Friendster.com are for people who are primarily interested in extending their friendships, while LinkedIn.com focuses on job networking (Laudon, 2009, p. 417). Social networking stems from a persons desire to connect and interact with others who may be related or share similar interests. Private and public forums were the first form of social networking on the Internet (Borders, 2009). Created in the 1990s, they quickly grew in popularity, spurring millions of community sites where people logged in and conducted discussions, typically around specific topics of a special interest website. Around the same time, real-time chat applications came into play, like ICQ and AOL instant messenger. The real-time chat option required users to log onto a website or download an application to talk to other people who were online at the same time. Blogging gained popularity as well, and these online diaries were put on sites like LiveJournal.com and WordPress.com. In the late 1990s, SixDegrees introduced the first social networking website that allowed the user to create a profile and trace friendships through people (Borders, 2009). SixDegrees premise was that individuals are all connected to each other somehow though direct and indirect relationships. By connecting with friends and family, then connecting with friends of friends and family members, the platform enabled users to meet new friends and potential love interests through a network. It had short-lived popularity, followed closely by Friendster in 2002, an online community that connects people through networks of friends for dating or making new friends. (Borders, 2009). Since its conception, Friendster has become well known in the Asian communities, and in the United States newer social media forms have replaced it, such as MySpace, Facebook, LinkedIn and, more recently, Twitter. The popularity of a given social media site and the abandonment of another appears to be connected to a sites functionality. Six Degrees gave way to Friendster, which was then replaced by MySpace because the earlier social media platforms had slow server speeds, and once the initial novelty of connecting with friends and family wore off, there was little else to do on the sites. With both Six Degrees and Friendster, users lost interest. MySpace and, later, Facebook offered more, not only to individuals, but functions that businesses could utilize for little to no cost. MySpace.com launched in January 2004, and now has over 65 million users in the U.S. alone. According to the creators of MySpace.com, it is a technology company connecting people through personal expression, content, and culture. MySpace empowers its global community to experience the Internet through a social lens by integrating personal profiles, photos, videos, mobile, messaging, games and the worlds largest music community. MySpace was the first site to allow users to explore public profiles, and users could utilize it as a virtual bulletin board to post information, pictures, music and video. Like Friendster, MySpace offers its users the ability to customize their personal pages, making the site very popular among teenagers and those in their twenties. As a business platform, bands and filmmakers use the site because of its ability to post material and get instantaneous feedback from known and unknown MySpace users. In less than three years, it became one of the most popular webs ites on the World Wide Web (Random History, No Author, 2008). TheFacebook.com also started in 2004 at Harvard University, as a personal network between students. It quickly extended to other universities and then in 2005, it became Facebook.com, garnering worldwide recognition. Facebook appeals to a different audience than MySpace, focusing on navigation capabilities and a uniform appearance in contrast to the high degree of variability displayed on MySpace. Users have access to free games, videos, links, and fan pages that continue to grow daily. The companys overview states, Facebooks mission is to give people the power to share and make the world more open and connected. Millions of people use Facebook everyday to keep up with friends, upload an unlimited number of photos, share links and videos, and learn more about the people they meet. Fan pages are becoming increasingly popular on the Facebook site. This is a page made by a business, cause, or individual that users may connect to as a fan. The fan page is then displayed through an indivi duals profile to his connections, and that individual may encourage his connections to also connect to the fan page. A fan page allows for an individual to post information about her business separately from her personal page. For users in search of a business networking platform, LinkedIn.com is a professional social media website. First launched in 2003, users may add business contacts, provide recommendations and create a strong business network. The LinkedIn mission states, Relationships Matter and that Your professional network of trusted contacts gives you an advantage in your career, and is one of your most valuable assets (LinkedIn, 2009). LinkedIn provides value to the small business because it allows for an individual to share professional information with people he does business with, and make contacts with an associates network through introductions or an InMail function. Twitter.com is a combination of previous networking sites. It is a mini blog that has the ability of active updating to Facebook, which also has SMS or instant-messaging capabilities. The original concept of Twitter was initially inspired by the concept of an away-message merged with the freedom and mobility of [Short Messaging Service] SMS. Twitter began as an experiment in 2006. When value as an instant communication network during shared events like earthquakes, conferences, and festivals emerged, Twitter began to grow (Milstein, 2009). The goal of a tweet is to get a point across in 140 characters. Twitter allows individuals and businesses to broadcast an announcement or status in real time. It enables users to pick whos information they want to follow, who they want to allow to follow them, and if they want to be a part of any groups that they might find interesting. MySpace, Facebook, LinkedIn and Twitter are just a sample of social media formats available to todays Internet users. Through social media, individuals and businesses find a way to connect on a virtual platform. People spend hours surfing pages, checking out other members, and exchanging messages and they reveal a great deal of information about themselves. Businesses harvest this information to create carefully targeted promotions that far surpass the typical text and display ads found on the web. They also use the sites to interact with potential customers. The ability to deliver digital goods and digital content over the Web has created a new alternative to traditional print publications and broadcast media (Laudon, 2009, p. 417). For the analysis of how small businesses may use social networking, MySpace, Facebook, LinkedIn and Twitter are the focus in this study. Discussion of Current Issues Social media is a popular marketing medium for small businesses because it costs little to nothing. A. Gooding, owner of Inspire Fitness, states that she chooses her advertising media based on anything that is free. I use Facebook, word of mouth, and I write a column for our local paper. I have handed out fliers at schools, and I have had a booth at a local health fair. Im also a contestant for Best of Western Washington, personal trainers, and even if I dont win, its great publicity (Appendix A). When asked about how he advertises, Rex James Bands co-founder, D. Powell replied, Were doing [Facebook], Hotmail, [MySpace], newsletter, website, Sonic Bids for bands, help you get bids, help you update your calendar. Artist Direct just recently currently in BETA currently free, they have a lot of cool tools to format calendar and they update [Facebook] and [MySpace] for you one stop shop. (Appendix D). For R. Mickler of Mickler and Associates, I chose Twitter because of its phenom-qua lity and its growth its fairly popular and has the greatest sticking power out of all of them, I think. I chose LinkedIn because its a more professional site than Facebook, and conveys the professional information in a way that I can control (Appendix C). Small businesses have limited advertising budgets, and social media provides a free venue for marketing. In addition to being free, social media provides an interactive forum for the small business to meet its customers. In traditional advertising, the advertiser broadcasts to an audience, but does not get immediate feedback. Social media facilitates a conversation between the small business and its customers. It is through these conversations that social media provides a business to consumer electronic commerce (B2C). B2C involves retailing products and services to individual shoppers (Laudon 2009, p. 420). Social media provides a forum where businesses may start a conversation with potential clients, creating a relationship that allows for both the business and customer to decide if and when they will do business together. Unlike large businesses, a small business may not have the capacity to serve a large customer base. When asked about his business growth, Mickler responded, Ill start from 2004 I acquire about 7-10 additional customers a year (roughly a 15-20% growth rate) and thats been fairly consistent. Growth rate is tricky for a company my size: too much growth and Id have to hire a staff, and thats not in my business plan; too little growth and I cant keep up with attrition and my competitors. Generally, 20-percent of my customer base are cornerstone assets that I spend my most time with. The other eighty-percent are potentially new cornerstones (Appendix C). A business like Mickler and Associates must be able to be selective about who it sends its marketing message to, because the businesss size limits the number of clients who may be helped at any given time. In traditional advertising, a marketing message is broadcast through radio, television or print. In the past, to prevent an overwhelmi ng response to advertising, a small business may have selected a direct marketing campaign to communicate with past and potential clients. Social media allows businesses to decide whom they want to advertise to, essentially picking out their niche market. On Facebook through a profile they can provide information to friends family, with the creation of a fan page they can push it a bit further as friends of friends view profiles. Twitter allows a business to be selective on who gets messages, or a business can join groups to help get their name out there. LinkedIn allows businesses to connect through their colleagues, so that they are only offering their services to those already a part of their network. Growth is not the only element a small business may want to control. If an individual starts a home-based business, the business owner wants to know her clients. Social media provides a means to communicate directly with friends and friends friends, rather than casting a wide net. According to A. Gooding, Because I have a gym studio in my house, I am very careful with whom I hire as clients. Therefore, I would much rather market to those who I know, in hopes they know someone who needs a personal trainer (Appendix A). Gooding created a fan page on Facebook and invited her friends and family members to connect to the page. As friends of friends also connected to the page, she could learn more about the potential clients by looking at their profile information or asking friends and family about the person. For a small business that wants more exposure, search engine optimization (SEO) is a benefit of social media presence. Search engines started on the Internet as simple keyword indexes of all the pages they visited (Laudon 2009, p. 293). In 1998, the launch of Google introduced a new facet to the index, This search engine was different; Not only did it index each Web pages words but it also ranked search results based on the relevance of each page (Laudon 2009, p. 293). As search engines continue to evolve, small businesses benefit from appearing in unsponsored search links (links that were not paid for), because the more presence a small business has on the Internet, the more likely it will appear in a keyword search. The Rex James Band recognizes the benefit of more exposure, The more places your music and keywords are on the Internet, the better chance people will find you on the Internet and search engines can correctly categorize your website with the keywords when people do sear ches, this is all part of a technique that large companies spend millions on each year to increase their search engine ratings (Appendix D). We see this in Russell Micklers experience as well, Its very useful. Content pushes more search engine results my way, making me look like a good authority, and that improves people finding me on the web (Appendix C). The small business owners interviewed for this study largely described the benefits of social networking, but there are negative aspects in the utilization of social media. L. Nguyen of VitekUSA explains why he will not use MySpace, There are just too many ads on that people dont pay attention to any type of advertisement. I believe people are programmed to filter out any type of ads on MySpace (Appendix B). The sites, while free for users, need to make money to support growth and development. One key way the online social media sites make money is through paid advertising. On MySpace, animated banner ads run along the top and side of a users profile. As a result, the user is bombarded with advertisements, and eventually learns to ignore them. Nguyens concern raises the question regarding how long it will be before Facebook users ignore business fan pages, because the person feels bombarded with marketing messages. Nguyen states that he feels multi-level networking is the best busine ss model, but when asked if he would expand his use of social media, he replies, My long term advertising strategy is to push more advertisement on forums and blogs that has to do with karaoke, less of social media (Appendix B). Another negative aspect of social media is the potential loss of an individuals privacy because much of the information placed on a social media web site is publically available through search engines. R. Siciliano, an internet security analyst, writes, Privacy issues and identity theft in social media are a growing concern. Most people who post their personal information about themselves do not recognize the potential consequences of their actions, or maybe they simply dont care if their entire life is an open book (Siciliano, Huffington Post, 2009). Gooding mentioned that her use of advertising on Facebook is strictly targeted towards friends and friends friends, because she conducts business from a home-based gym. However, friends of friends friends also have the ability to view some content she posts, diminishing the security of her page, should she use her personal page to promote her business. To limit the information available to those interested in her business, Gooding creat ed an Inspire Fitness fan page. Fan pages allow anyone who is interested to link to a companys profile, but not access an individuals personal information. Finally, there is the risk of misleading or controversial information on social media sites that may present risks to a business. Social media is largely unregulated. Users of Twitter, for example, may face lost business or legal troubles if a disgruntled client voices an opinion that is defamatory. Entertainer, Courtney Love, is being sued by a clothing designer for posting 140 character rants about the designer, including name calling such as liar and thief. The designer alleges her business has suffered due to Loves posts (Reuters, March 2009). And, while Facebook and MySpace creators encourage users to report abuse of the sites, it does not prevent the presence of controversial content. [MySpace has] many teenage subscribers [who] post suggestive photos of themselves and lie about their age. About one-fourth of all MySpace users are registered as minors under 18 years of age, but that number could be larger. Parents, politicians, and police worry that sexual predators use MySpace to stalk potential victims (Laudon, 2009, 418). Recommendations The interactive relationships developed between customers and businesses through social media provide businesses with a competitive advantage. When used wisely, social media enables the small business to gather information about and respond to customer needs faster than through traditional marketing. The key to obtaining and maintaining competitive advantage through social media is to find a medium that is manageable and positively reflects the product or service offered. When a business does not select the correct venue, the advertising may lose value or tarnish a companys image. For the Rex James Band, MySpace provides a platform for sharing music and allows the band to interact with its fans. It appeals to a twenty-something audience, as well as other bands and entertainers. But, because of the ability to post messages on a connections page, businesses that use MySpace and Facebook must monitor their pages frequently, and remove posts that may offend or dissuade potential customer s. A high-traffic, highly interactive platform like MySpace or Facebook would not work for a professional service, like Mickler and Associates, who may desire testimonials, but not a steady stream wall posts that require frequent attention. Mickler wisely selected LinkedIn to reflect his business image of professionalism and uses Twitter as a real-time interactive tool to engage current and potential customers. Once a small business selects an appropriate social media platform, it should make initial connections with people already familiar with the company or product. If a small business asks current customers to add the fan page to their social media, not only will other customers see it, but their friends and other contacts will see it as well. This phenomenon of obtaining business through social networking is called word-by-mouse rather then word-of-mouth advertising. D. Scott, author of Viral Marketing Success explains Word-of-mouse is the single most empowering tool available to marketers today (Scott 2008, p. 8). He provides an example of how the process worked for the opening of the new Harry Potter theme park for Universal Orlando. C. Gordon, the Vice President of New Media and Marketing Partnerships, did not broadcast the event in a traditional manner through television or print. Gordon and her counterpart at Warner Bros. chose to launch The Wizarding World of Harry Potter by firs t telling the exciting news to a very small group of rabid fanThese seven [fans] were invited to participate in a top-secret Webcast held at midnight on May 31, 2007. (Scott, 2008, p. 6 7). By relaying the announcement through seven die-hard fans, then family and friends, previous customers and bloggers, Gordon reached an audience 350 million through social media. Powell describes how word of mouse benefits Rex James on MySpace, You can get new contacts without spending any effort, people will find you if you are participating in the same circles, and with a little bit of effort you can build your friend lists greatly in a short time (Appendix D). A business owner must make the decision on how much or how little online exposure he desires to obtain. On Facebook, business owners may elect to steer current and potential customers to a fan page. The fan page gains a following through word-of-mouse networking, and a dedicated business page will keep the focus on the business, rather than the business owners personal information. Social media users must also remember that once they publicize their pages, it is open to anyone that performs a web search. For example, when performing a search for Inspire Fitness on Facebook, both the Inspire Fitness fan page and Goodings personal page appear in the search results. If Gooding prefers to be excluded from the search results, she would need to remove all references to Inspire Fitness on her personal page. Business owners should perform frequent searches on Google and Yahoo search engines to observe what content are in the public forums. A business owner may also elect to receive email or mobile text alerts when their name or their business name makes a new appearance in a search engine. For a new business trying to create a presence on social media site, like Twitter, online resources can help. Geekpreneurs Geeks Guide to Promoting Yourself with Twitter, provides several tips for obtaining followers, and driving followers to the business web page. When asked if he would explore social media options beyond Facebook, L. Nguyen responded, My long term advertising strategy is to push more advertisement on forums and blogs that has to do with karaoke, less of social media (Appendix B). Rather than abandoning social media, Nguyen should consider establishing a website and utilize Twitter to drive business to him. A savvy business owner understands that the social networking mediums are ever-evolving. According to d. boyd, Online communities are more like nation-states than technological tools. There is a master behind the architecture, a master who controls the walls of the system and can wage war on her/his people at any point. People know this. They have to trust that the creators have their best intentions in mind. They invest a lot of time and energy into creating an identity in the system they want to believe that it is worth it (boyd, 2006). If a social media site fails to meet the changing expectations of its users, people will move on to another medium that serves their needs. For the small business, depending on social media to obtain and retain customers, it is important to watch the interaction between the creators of the media sites and the users. A small business should not count on any one platform to carry its marketing message because social media sites will come and go. Conclusion The initial intent of this study was to find ways social media could help small businesses compete with larger businesses. As the research progressed, the project team realized small businesses do not typically want to compete with larger businesses, but social media gives them key advantages in their target markets. Some of the businesses interviewed had already found appropriate social media platforms, experiencing success in reaching their intended customers. For businesses not connecting with their target audiences to the degree desired, the recommendations resulting from the project teams research may provide social media solutions not previously explored. Regardless of the solution selection, small businesses must be flexible, as new technology and online platforms evolve rapidly. While social medias advertising benefits small businesses through low or no-cost marketing, it should still only be a small part of what makes up a larger marketing plan. Through the project teams res earch, the study concludes that the best business practice is to find multiple ways to connect to customers and always deliver on the companys promise.

Friday, October 25, 2019

Does The Temperature Of Hydrochloric Acid Affect The Rate Of The :: GCSE Chemistry Coursework Investigation

Does The Temperature Of Hydrochloric Acid Affect The Rate Of The Chemical Reaction Between Hydrolic Acid And Magnesium? Analysis Temperature of Time taken for Seconds hydrochloric acid 0c magnesium to react 14 141 20 80 27 73 39 55 50 52 60 51 Hydrochloric acid + magnesium magnesium chloride + hydrogen 2 Hcl MG MGCL2 H2 From my results I can conclude that the hotter the hydrochloric acid the quicker the reaction time between the acid and magnesium. The results show certain patterns and trends, for example the test where the acid was at 14 C the magnesium took 141 seconds to react and 27 C test took 73 seconds to react. This shows roughly that if you double the temperature then the reaction time will half. The reason that when the hydrochloric acid was at 14 C the reaction time for all the magnesium to react was 141 seconds was because the molecules of the acid and magnesium didn’t have a lot of kinetic energy, so there was not much movement therefore there were not many successful collisions. Successful collisions are when the molecules contain enough kinetic energy to collide forcefully enough to break the bonds between the hydrogen and the chloride particles this needs to take place for any reaction to happen. If there is not a sufficient amount of kinetic energy, the particles just bounce off of each other causing no reaction. On the other hand the reason when the

Thursday, October 24, 2019

An Analysis of the Observed Heterozygosity of Lake Trout

An analysis of the observed heterozygosity of Lake Trout populations from three lakes: Devil, Eagle, and Loughborough, inferred from microsatellite genotypes. Abstract: This study was undertaken in order to compare the heterozygosity of three Lake Trout populations at various loci. Samples of twenty-five Lake Trout were collected from three lakes: Devil, Eagle and Loughborough, all three of which are situated north of Kingston, Ontario. An autoradiograph was used to analyze the genotypes of the individuals at six different loci of microsatellites, which are repeat sequences in the DNA that are neutral and do not code for proteins.This data was used to compare the genetic diversity of the three different trout populations. Numerical values for observed heterozygosity (Ho) were then generated using the data and the Doh heterozygosity calculator. The results have indicated that the mean heterozygosity in respect of Devil Lake trout was significantly greater than that of the trout in Eag le Lake (p=2. 89E-7) as well as that of Loughborough Lake (p=1. 44E-19). Furthermore, the mean heterozygosity for Eagle Lake trout was significantly greater than that of Loughborough Lake (p=2. 2E-6). This may be due to the fact that natural selection acts as a force to cause inbreeding to eliminate harmful genes causing low heterozygosity in a population. In addition, human and natural effects occurring in the lakes, for example, fishing and water temperature may cause differences in heterozygosity. Understanding and using these findings may help with sustaining fish populations. Introduction: Heterozygosity is the measure of the genetic variation in a population at a particular gene locus.Genetic variation within a population is important in maintaining or increasing the fitness of members in the population and ultimately the survival of the species. Fitness describes the capability of an individual species of a certain genotype to reproduce, and is usually equal to the proportion of the individual's genes in all the genes of the next generation. A positive correlation was found between the heterozygosity at the loci and the fitness (survival and maturation) of the fish, suggesting that heterozygosity is advantageous (Pujolar et al. 005). A heterozygote advantage describes the case in which the heterozygote genotype has a higher relative fitness than either the homozygote dominant or homozygote recessive genotype. An individual's fitness is manifested through its phenotype, and the phenotype may be affected by both genes and environmental characteristics. One such characteristic that was observed to possibly have an effect on levels of heterozygosity in a population was the area in which the population lives. In an experiment conducted by Rowe et al. 1999) the heterozygosity of various populations of Natterjack Toads (Bufo calamita) found in several areas were compared, ultimately discovering a lower heterozygosity in a population that is isolated from other s. Volckaert and Zouros (1989) conducted a study to measure genetic diversity levels in scallops (Placopecten magellanicus) and discovered levels of heterozygosity to be highest as age increased. Ferguson (1990) found similar information that affects diversity among rainbow trout (Oncorhynchus mykiss) and concluded that heterozygosity levels were proven to have a direct relationship between the sex, size and age of the fish.There are many factors that may affect the genetic diversity of a population. In particular, various events and environmental characteristics may affect the genetic diversity of Lake Trout. One factor may include fishing. This activity may cause the population of the fish to decrease at an unstable rate, thus this study will be undertaken to determine the many factors that may contribute influences to the genetic diversity of Lake Trout in three lakes: Devil, Eagle and Loughborough Lake.Using six microsatellite loci from 25 Lake Trout from all three lakes, observ ed heterozygosity values that act as an indicator for genetic diversity, will be obtained and analyzed. This data can be further used by analyzing and providing additional information about the influences of certain characteristics on population genetics. Results: Figure 1 illustrates that the lake with the greatest observed heterozygosity is Devil Lake. It was determined that the observed heterozygosity of Devil Lake is significantly greater than the observed heterozygosity of Loughborough Lake (p=1. 4E-19). The sample size for all 3 lakes was 25 Lake Trout. Figure 1. The graph illustrates the mean observed heterozygosity of the three lakes. The error bars represent standard deviation. Discussion: The conducted experiment involving heterozygosity of Lake Trout from Devil, Eagle and Loughborough Lake shows that there are significant differences between the three lakes. Devil Lake had the highest mean heterozygosity within its population, Eagle Lake heterozygosity was found to be in the middle and Loughborough Lake with the lowest.It was determined that the observed heterozygosity of Devil Lake was significantly greater than the observed heterozygosity of Loughborough Lake (p=1. 44E-19). The difference in the data set’s outcomes may be explained by a number of factors, such as natural selection, fishing and restocking the lake, and lake temperatures. All these factors may cause diversity in heterozygosity. The goal of an organism is to reproduce and pass their genes on to the next generation allowing the species to survive.The passing on of genetic material can be achieved through inbreeding or outbreeding. Inbreeding is the breeding amongst family or self; outbreeding is the breeding with members of the same species that are not closely related. It may be believed that inbreeding is not good for a population with such opinions being based on having seen the result of inbreeding in humans. Inbreeding as well as outbreeding, however, has both advantages a nd disadvantages. One advantage of inbreeding is its ability to depress the expression of recessive alleles (Ellstrand and Elam 1993).In a population with a damaging recessive allele, an individual may not seek to mate with anyone who potentially carries or expresses that allele. In this example the population might inbreed to decrease the heterozygosity in an attempt to remove the harmful gene. Mating within the family- when it is apparent that the family does not carry the detrimental allele, is more ideal in an evolutional prospective than putting the survival of that population at risk.In regards to Ellstrand and Elam’s study, this situation could occur in the Lake Trout from Loughborough causing the Lake Trout to have a lower mean heterozygosity. This Lake Trout population could be purging undesired alleles from its gene pool. One can conclude that not only does genetics have an effect on heterozygosity, but humans do as well. Another factor that may cause a loss of gene tic diversity is fishing pressures. Smith et al (1990) suggested that fishing activities which concentrate on spawning populations differentially remove the older and more heterozygous individuals from the virgin stock.Previously stated, levels of heterozygosity are higher as age increases (Volckaert and Zouros 1989). Due to fishing, the amount of Lake Trout may decrease and there would be less fish. To fix the amounts of fish in the lakes, humans restock the lakes with hatchery fish (fish that are grown by humans and released into the wild). Evans et al. (1991) found that the human harvested fish tend to have lower genetic variation and actually decrease the fitness and survival of the native species. Loughborough Lake has the biggest population but the lowest heterozygosity.Compared to Eagle Lake and Devil Lake, most people from the Loughborough Lake area receive their income from fishing (Ontario Ministry of Natural Resources 1970). Excessive fishing depletes the amount of fish a nd creates the perceived need to continually restock the lake with fish. The practice of restocking the lake with hatchery fish may result in the large population of Lake Trout which would in turn decrease the heterozygosity of Loughborough Lake. There are other factors that may contribute to increase levels of heterozygosity in fish.One such characteristic that may increase levels of heterozygosity in fish is fluctuations in water temperature. Zimmerman and Richmond (1981) found that highly variable thermal regions demand for greater fitness. The fittest of fish are more heterozygous because they are able to survive in different temperatures. In Zimmerman and Richmond’s experiment, the greatest temperature fluctuation was 7Â °C, with the highest heterozygosity level of 49%. This trend may prove that the greater the temperature fluctuation, the greater the heterozygosity of a population living within the waters.The temperature fluctuations of the three lakes are: Devil Lake at 31Â °F, Eagle Lake at 21Â °F, and Loughborough Lake at 7Â °F (Ontario Ministry of Natural Resources 1970). These numbers correlate with the data by showing that Devil Lake with the highest temperature fluctuation has the greatest heterozygosity, whereas Loughborough Lake with the lowest temperature fluctuation has the lowest heterozygosity. The mean heterozygosity of Lake Trout from Devil Lake was significantly greater than that of trout from Eagle Lake, which was greater than that of Loughborough Lake.Potential reasons for genetic diversity may be caused by natural selection acting as a force to cause inbreeding to eliminate harmful genes, fishing in the lakes which then require the lakes to be restocked with hatchery fish, and thermal fluctuations that cause differences in heterozygosity. Further research and experiments specifically looking in depth at effects that causes genetic diversity should provide greater insight into why the heterozygosity in populations varies. Lit erature Cited: Ellstrand N. , Elam R. 1993.Population genetic consequences of small population size: implications of plant conservation. Annual Review of Ecological Systems. 24: 217-242. Evans D. , Casselman J. , Wilcox C. 1991. Effects of Exploitation, Loss of Nursery Habitat, and Stocking on the Dynamics and Productivity of Lake Trout Populations in Ontario Lakes. Ontario Ministry of Natural Resources. 193: 1-3 Ferguson M. 1990. Enzyme Heterozygosity and growth in Rainbow Trout: Genetic and Physiological Explanations. The Genetical Society of Great Britain. 8: 115-122. Ontario Ministry of Natural Resources. 1970. Map of Eagle Lake. Map of Loughborough Lake. Map of Devil Lake. Queen’s University Map and Air Photo Library. 613. Pujolar J. , Maes G. , Vancoillie C. , Volckaert F. 2005. Growth Rate Correlates to Individual Heterozygosity in the European Eel, Anguilla Anguilla L. Evolution. 59: 189-199. Rowe G. , Beebee T. , Burke T. 1999. Microsatellite heterozygosity, fitness and demography in natterjack toads Bufo calamita. Animal Conservation. 2: 85-92. Smith P. Francis R. , McVeagh M. 1991. Loss of Genetic Diversity due to Fishing Pressure. Fisheries Research. 10: 309-316. Volckaert F. , Zouros E. 1989. Allozyme and physiological variation in the scallop Placopecten magellanicus and a general model for the effects of heterozygosity on fitness in marine molluscs. Marine Biology. 103: 51-61 Zimmerman G. , Richmond M. 1981. Increased Heterozygosity at the Mdh-B Locus in Fish Inhabiting a Rapidly Fluctuating Thermal Environment. American Fisheries Society. 110: 410-416

Wednesday, October 23, 2019

The Influence of Globalization on Movies

The Influence of Globalization on movies Nowadays, movies, which are the most important entertainment of people, has spent much more money and time than before by a growing number of people. Different kinds of new movies play nearly everyday; and the way to watch a movie isn’t confined to the cinema. Along with the improvement of digital postproduction and digital effect is applied to the movies, they make people to be personally on the scene when you watch a movie. In the past twenty years, the changes of the ways to watch a movie and the movie technology have already influenced entertainment for people deeply. As we know, globalization on movies and films’ changes in the past twenty years had an effect on people’s daily life, so it was the reason for choosing this topic. We worked out six questionnaires about the project after deciding on the topic. We had 3 yes/no questions, for instance, do you like watching movies, how many movies do you watch per month and traditional movies are more valuable than commercial movies. In addition, we had a multiple choice in our survey, it is â€Å"Which kind of films do you like†. Besides these, two open questions were chosen, one is â€Å"What aspects of movie do you think have changed? †, another is â€Å"Which ways do you often watch movies? †. Our group planned to ask 12 people to answer the questions when we were finishing the questionnaires, so each group’s member needed to ask 3 people about the questions. Only my roommates were asked, and all questions were answered by a pencil. These men who were asked to answer the questions because of convenience; I could take up too much of their time to explain the project, the topic and the detail of the questions, too. The result was collected together when we finished asking the questions. The outcome of our survey is that all the interviewees like to watch movies. However, half of them watch movies less than 5 per month, nearly half of the interviewees watch 6 to 10 movies per month . Only one interviewee watches movies more than 20 per month. Disaster film and comedy film are the most popular movies among the interviewees, many people watch science fiction film and cartoon film as well. Fewer interviewees like watching crime film. A majority of people consider that movies’ theme need to change most because they want to watch a variety of movies. Meanwhile, the way to watch a movie is infinite variety, such as internet, at home by a DVD, cinema and web TV phone. Most interviewees also believe that traditional movies are more valuable than commercial movies. It can be seen from the survey’s figures that the ways to watch a movie and the movie technology have changed most in the past twenty years. Over the past days, only cinema was supplied for people who wanted to watch a movie. But now, more and more people watch movies at home through Family Cinema and computer because they make people comfortably. People can sit on the sofa even or lie in bed to watch a movie, and they are able to have some food and drink at the same time. However, in my opinion, movies’ changes which affect entertainment of people most is movie technology, particularly is computer digital special effects’ appearance. Digital special effect is not only a supplement for film editing, it have already penetrated into every aspect of movies, such as screenplay, scene, stage-ties and postproduction. The directors’ imagination is also at liberty to gallop on through the digital special effect. It makes people to be personally on the scene and shock each audience’s ghost. There is no doubt that people’s daily life is closed related to movies, and they play a very significant role in people’s entertainment life. Movies’ changes have never terminated in the past twenty years, and film industry has undergone enormous changes.