Life in the Ocean an Example by

Life in the Ocean by Expert Prof Nelly | 07 Dec 2016 Question: Need essay sample on "Life in the Ocean" topic? We will write a custom essay sample specifically for you Proceed What is picoplankton and why is it important in the ecology of the ocean? Answer: Planktons with cells that range from 0.2 and 2.0 m are called picoplanktons. There are two types of picoplanktons depending on their feeding preferences: the photosynthetic picoplankton and the heterotrophic picoplankton. The former is the plankton that dominates the central oligotrophic regions. These regions have scarce supply of nutrients. There are three major groups under this type: cyanobacteria (Synechococcus), cyanobacteria (Prochlorococcus), and picoplanktonic eukaryotes. This plankton is important since, aside from the biological pump that distributes nutrients in the depths, it synthesizes the available nutrients to provide nutrients to other organisms in the area. The latter type of plankton, as its name suggests, is the type of plankton that do not perform photosynthesis. It can be either prokaryotes or eukaryotes. Heterotrophic picoplanktons can be found on both seawater and freshwater environments. These picoplanktons are important in the carbon cycle since they feed on organic matter (i.e. waste products, carcasses of dead creatures) descended into the depths. These creatures help in maintaining the cleanliness in the ocean floor. Question: Salinity and osmotic balance are closely related. Discuss how organisms compensate for changes in salinity when they move from the ocean to an estuary, as occurs with various species of shrimp and fish during their life cycle. Ans.: The blue crabs, shrimp, and lobsters, also called decapod crustaceans, are some of the species in which salinity is part of their life cycle. Salinity is important in the regulation of internal ion concentration of the crustaceans, decapods and fishes. In the case of the blue crabs, most of the time, the adults are found in the estuarine environment where there is a relatively low-salinity water. After mating, the female blue crab journeys into the deeper parts of the ocean to release the fertilized eggs. The grass shrimp, Palaemonetes vulgaris, also live in the low-salinity water of the estuaries. The changes in the salinity levels across the estuaries into the ocean depths are compensated by changes in the ion concentration of the species. In this way, the organisms are able to survive and complete their life cycle. During their larval stage, high salinity inhibits growth of some types of pathogenic organisms and invasive species thus shrimps and other crustaceans and fishes usually lay their eggs in high-salinity waters, e.g. ocean. The organisms then return to the low-salinity waters when they mature or reach optimum stage for survival and completion of the life cycle. Question: How does the fossilization process take place in marine organisms? Go to the web sites indicated at the end of Supplemental Activity 3 of Chapter 21 in The Endless Voyage Study Guide, and answer the question in a brief manner (not a report). Ans.: Fossil preservation of organisms depends upon three key factors: type of animal, environment, and events after death. In arid, acidic and tropical environments, bones are usually decomposed at faster rates while in the marine environment, there are factors (i.e. salinity) that serve as preservatives of the remains thus allowing preservation of the organisms details after it dies, called fossil. Fossilization in marine organisms is accomplished through rapid sedimentation and absence of process interruption. When the organism dies, its remains are quickly covered by sand or mud and some organic matter that descends from the ocean surface to the abyss. This will bury the remains and in effect, it will be protected from disturbances for thousands or even millions of years. The remains will not be available for scavengers which are present in the open environments inland. It will also be protected from erosion and washing away as well as decomposing bacteria. The sedimentation process will continue and after sometime, the surrounding sediments will harden into rocks, layers of rocks formed from sediments and remains of the organism. Organisms details maybe omitted in the process depending on the type of rock and mineral deposits that buried it. The most common types are calcite and aragonite (both form of calcium carbonate), quartz and silica. References: Thornton-Devictor, S. (2004). Transitions to the Deep: Adaptations in Decapod Crustaceans for Life Along the 3130N Atlantic Transect. Retrieved April 22, 2007, from http://www.oceanexplorer.noaa.gov/explorations/04etta/background/decapods/decapods.html#top Oram, J.J. (2005). Patterns of Temperature, Salinity, and Suspended Particulate Material in San Francisco Estuary: Water Year 2005 in the Context of Previous Water Years. Retrieved April 23, 2007, from http://www.sfei.org/rmp/2004to05/AMR_2004-2005_Ch7_Patterns.pdf Dinosaur Fossilization (n.d.). Retrieved April 23, 2007, from http://www.dinoruss.org/de_4/5c60e6e.htm How Fossils Form (n.d.). Retrieved April 23, 2007, from http://www.zoomschool.com/subjects/dinosaurs/dinofossils/Fossilhow.html

history of illustration essays

history of illustration essays Throughout time, illustration has been a source of visualizing thoughts and ideas, and has also been a way to sway the public in terms of beliefs and trends. These trends, created within the many genres in illustration, have taken on quite an important position in the art world in the 20th century. It was in this time that illustration reached fruition, and many of the illustrators received the notoriety which had been lacking until this time period. In illustration, there are many groups, or genres, with many different styles and trends which are used to convey the thoughts of the artist. These genres include humor, the conceptual, illustration for children's books, imaginative, realistic, technical and surreal. In 1901, the Society of Illustrators was established to help gain respect for the artists who practiced this craft. A group of nine artists and one advising businessman founded the Society. The society found intself involved in a lot of the political movements throughout the 20th century history of America and actually created the famous "I Want You" illustration where Uncle Sam was used an an icon to promote recruitment for the wars. During the years surrounding WWI, Society members worked through the Division of Pictorial Publicity creating many original poster designs. Eight members, commissioned Captains in the Engineers, were sent to France to sketch the war. After the war, the Society operated the School for Disabled Soldiers. Member shows continued at prominent galleries. In the 20's and 30's was when the Illustrators gained their highest level of fame. It was in this period that many exhibitions were held to display the artwork of the illustrators. Through member Watson Barrett, the Illustrators' Show of 1925 was held at the Shubert Theatre. 1981 saw the establishment of the Museum of American Illustration. Today the Museum possesses 1,500 works of art by such legen ...

How to implement Customer Relationship Management(CRM) to engage and Essay

How to implement Customer Relationship Management(CRM) to engage and improve customer loyalty in hotel industry in UK; Case study of Marriott, Hilton, Novotel as international chain hotels in UK - Essay Example Focusing on the customers in particular is perceived to be a sure way of keeping the firm afloat the market and provides the company a competitive edge in the market (Berry 2006). This theory is called Customer Relationship Management (CRM). This paper will discuss this relatively new model and examine its effects on the operations of a company. Specifically, the paper will investigate the integration of CRM in Marriott, Hilton and Novotel hotel chains. With the purpose of providing a clear discussion on the subject, the definition of Customer Relations Management has been provided. Afterwards, the integration of CRM has been taken into consideration including the overall implications of customer loyalty to the organisation. The observations and arguments have been backed up by past and existing literature on CRM. CRM is the short form for Customer Relationship Management. It is the efficient communication between customers and a company at every contact point. Whether this communication is done by phone, website or e-mail, the important thing is that the customer counts on getting an experience from doing business with the company (Berry 2006). CRM systems are what attempt to ensure a good experience. It is a vast system of information or a database of customers and their buying habits, e-mail address, residential address, personal information such as birthday and so on. This information is then retrievable by any department whose need it to better the company. For example, the sales force can use this information to gain customer’s trust and loyalty. The system provides sales reps with the software tools and company data sources they need to support and manage their sales activities and optimize cross-selling and up-selling. It also gives them access to their customer’s profil e, describing the customer’s history with the company before they place the call. Let’s

Intrusion Prevention Essay Example | Topics and Well Written Essays - 750 words

Intrusion Prevention - Essay Example When the term hacker came into existence and the way media portrayed a hacker’s image, many individuals who thought that the media’s definition of hacking is cool and trendy, started using their abilities in illegal ways. Later on when companies and individual started facing issues caused due to the hackers who were a part of the dark side of hacking, many individuals who were previously involved in illegal and unethical hacking started providing services as ethical hackers. Their task was to identify various security vulnerabilities that could be manipulated by illegal hackers and they even started providing solutions for these security concerns. This method of solving security issues have existed over a very long period of time, this method has ended up being one of the best ways to solve a user’s security issues but on the other hand users are even concerned about the legitimacy of such security providers. Body There are several advantages associated with hiri ng hackers for the protection of user’s system, these hackers might have previously indulged in activities recognized as unethical hacking, but today, they are using their expertise for legitimate purposes. A hacker is beneficial for securing computer systems because they have been a part of the hacking business and thus their expertise of hacking are much more advanced than those who haven’t been a part of the illegal hacking side. Individuals can learn the basic concepts and technicalities of hacking from various resources but they cannot develop their own techniques nor can they have experience of all the techniques available. Only a genuine hacker has these capabilities and he/she uses various techniques together or in isolation for hacking purposes. Hackers who are involved in the legitimate business of providing security through their hacking skills are recognized as White hat hackers; they keep themselves updated with day to day threats and treat this as their f ull time job (Teare, 2006, p.104). Thus they own the appropriate amount of skills, abilities, and knowledge required to conduct legal hacking. Hiring a hacker for security purposes can obviously have various negative consequences. Trust is a major factor that comes into scrutiny when a hacker is hired to secure a premise. This is similar to hiring a convicted burglar for the security of your own home. The most important aspect of any business is the customer and other stakeholders of the business. Attaching a negative element to a business such as hiring a convicted hacker for security purposes may ruin the image of the business and the concerns of the stakeholders are destined to increase. One of the major concerns of hiring a white hat hacker, who previously used to be a black hat hacker, is the issue of privacy of personal information of the customers and the suppliers (Wilhelm, 2010, p.15). If by mistake a company hires a black hat security consul

The influence of the media: Canadian elections

The influence of the media: Canadian elections Mao ZeDong once said that power comes out of the barrel of a gun. While that is still true, power also comes out of the manipulated images created to change ones thinking process and behaviour. Through the world of third person communication, technologies have generated various types of media. This paper will be discussing the effects and influential powers exercised by media in Canadian elections. During this complex process, understanding the brief history of media organizations as well as some information on Canada will provide a steppingstone for a deeper knowledge of the concepts and practices. Practically, in every attitude of the election campaign will engage the media. In fact, media is the ultimate platform where all political parties will be fighting on. Whether by budging through television and news reports or by purchasing time and space on mass media, parties must always use media to hype voters for support. Media organizations have their own agenda. They tend to sell themselves to the audiences with their star reporters, journalists, and as much as they can cover over the course of election. Inevitably, news will be discriminately selected, stories will be twisted, and they will be promoted with personal views and reactions. Mass media, therefore, will have powerful influences on voters. Canada, the country with the highest per capita immigration rate in the world, is far more familiar to multiculturalism than any other countries. Citizens are more social and less religious, while at the same time, keeping less class oriented and less partisan, than Americans who are more troubled by racial issues. As stated by Ian McAllister: Partisan dealignment implies that fewer voters begin the election cycle with such predisposition, making them more susceptible to the short-term issues and themes of the campaign. In other words, Canadians tend to have less political attachments and therefore consumers have greater effects on broadcast media. First Canadian media is the invention of newspaper. It is developed in the eighteenth century as gazettes. The official publications at that time are restricted only to edicts and laws, and some news from the home country; editorial materials are highly prohibited. Reporters are often beaten, threatened or jailed by the authorities. Until 1820s and 1830s, after William Lyon Mackenzie and Joseph Howe have fought and won the important court battle on in the area of publications materials, the right to publish freely can finally be ensured. Since then, various types of media have surfaced within citizens lives. Consumers are able to acquire contents that can be accessed through newspaper, television, radio, magazine, video product, or the internet. A new market has been innovated. Yet, the ownership of this new product remains in relatively few hands. These privately owned corporations, controlled by very wealthy people, dominate the Canadian media business. The effects are quite obvious, as Edward Herman and Noam Chomsky state: they are closely interlocked, and have important common interest with other major corporations, banks and government. Reporters keep close contact with the government as they could be benefited greatly from these close relationships. They could boost their popularity and influential ratings, as they were often given important scoops and leads, and they were known to have key connections to important backstage information. In the recent years of Canadian newspaper industries, some of the most significant changes were that the family-owned newspaper sold to newspaper chains owned by large business organizations. While reducing the production cost, newspapers became within reach of ordinary people, whereas, in the nineteenth century, newspapers were relatively expensive and available only to the elites. One of the biggest newspaper companies, Canwest, now under the control of Shaw Media, owns thirteen newspapers in Canada, which together control over thirty percent of Canadas newspapers circulation. Another large communications company is Sun Media, which issues thirty six different newspapers, making it the most number of papers per company. The two companies cover up to fifty one percent of the total number of newspaper and take over fifty-four percent of Canadas total newspapers circulation, thus, creating a concentrated ownership. With dominate powers; these two companies are in much lesser competiti on forces. They will feel unnecessary needs on the range of media information than do the need to make profits and the organizational structure of news-gathering and reporting. As a result, concentrated ownership is seen as limiting the range of ideas and information that reach the public. The limitation on the range of ideas and information was further explained by Walter Lippman who first proposed that the function of news is to signalize an event. The concept can be understood more in details by the argument made by Bernard Cohen after his research during the 1960s, The press is significantly more than a purveyor of information and opinion, it may not be successful much of the time in telling people what to think, but it is stunningly successful in telling its readers what to think about. During the elections of 1988, as one of the major campaign themes, the New Democratic Party (NDP) constructed the following message (audio): The job is hard work. I love it and Im good at but Canadas good Medicare is being threatened by the Mulroney free trade deal. In the United States Ive seen whole families wiped out by one illness. We cant let that happen here in Canada. The New Democrats started Medicare and I know I can trust Ed Broadbent to fight for it. This time, Ed Broadb ent. The short commercial, highlighting a nurses fear on the health care system of Canada, have created the NDPs most successful election in the history, a 20.4 percent of votes with 43 district seats in the House of Commons. Media plays a role in social learning. The first appearance of this effect can be extracted from the World War I; when tens of millions of people being entertained, and influenced by the latest Hollywood films, and when large numbers of population were being subjugated and manipulated by the propagandas created by Hitler and Stalin. The first research on such effects was conducted in 1920s and 1930s, and sometimes called the magic bullet theory. The hypothesis behind was that media images could directly penetrate peoples conscious and unconscious thoughts. In a study of 1,800 children and adolescents, Herbert Blumer concluded that when his subjects saw behaviours of the actors in the films that were beyond their own experiences, subjects behaviours were altered primarily based on what they had been seen at the movies. To be effective and influential, political parties must find consistent association between media viewing and an increase in changing behaviour. Effective broadcast of media is like the shadow striker; it hits the viewer anonymously. Agenda-setting and priming can be adopted for an effective broadcast to influence viewers. Various researches on agenda-setting involved relationship between the priorities on a particular issue set by the media and by the public. McCombs whom first started researches on agenda setting noted that the media influence what people believe before they reach a decision, particularly and election decision. If candidate is able to lead voters to a realization on a particular issue, and set it to top priority, then they may have an effective advantage. With a condition that the voter is not a partisan, in which something Canada tends to have less of. Priming the audience is identified by Iyengar and Kinder as a phenomenon that they described as by calling attention to some matters while ignoring others, television news influences the standards by which governments, presidents, policies, and candidates fo r public office are judged. If the television news broadcast the environmental issues over a significant time period as lead items, then environmental issues will be the deciding factors to the government for viewers. When it comes to television advertising, these techniques can be very effective. Another important finding on media effect is the role of repeated messages which was studied by Rothschild and Ray(1974). In an experiment using short ads about candidates, 20 percent of the subjects remembered the candidates after the message had been presented once; 55 percent of the subjects could name the candidates after it had been presented six times. The experience can be summarized into; message repetition is an important factor in familiarizing voters with candidates and issues. In Canada, the current election laws give the governing party enormous advantage in the media campaign. During each election campaign, each broadcaster must have a certain amount of minutes made available for political parties to purchase for advertising based on the number of seats that each party has in the House of Commons, the percentage of the vote in the last election, and the number of each party candidates running for election. In 2008 election campaign, 396 minutes in total were allocated; the governing party, the Conservative Party, had 95.5 minutes, the runner up, the Liberal Party, had 82.5 minutes, and the New Democracy Party only had 45 minutes. The result of the 2008 election was the Conservative Party won 143 seats with 37.6 percent in vote, the Liberal Party has 77 seats with 26.2 percent in vote, and the New Democracy Party has 37 seats with 18.2 percent in vote.In concept, with the datatand advertisers at least as much as they cover the election.

Ralph Waldo Emersons Transcendentalist Philosophy and Its Influence on

Ralph Waldo Emerson's Transcendentalist Philosophy and Its Influence on Margaret Fuller's Feminist Philosophy Ralph Waldo Emerson was a leading thinker in the American Transcendentalist movement, who first proposed many of the movement’s most influential ideas regarding the relation between the human mind and the world. He believed each person to possess a â€Å"soul,† a power within the self to uniquely perceive and understand the world, and grasp the intricate relationships between all things; Emerson’s universe was infinitely knowable, and his ideal, independent soul should be in a state of constant consideration and reevaluation of the world around him. Emerson’s notion of the chief end of life was the growth and development of one’s soul, and the maintenance of a constant state of learning and changing, of always becoming rather than simply being. He viewed society as a fundamentally oppressive phenomenon, as it imprints itself upon one’s soul and possesses the dictatorial capacity to hinder the soul’s crucial independent thought; to E merson, society was a â€Å"conspiracy against the manhood of every one of its members†¦ The virtue in most request is conformity. Self-reliance is its aversion. It loves not realities and creators but names and customs. Whoso would be a man must be a nonconformist,† (Self-Reliance 1162). â€Å"Self-reliance,† the title of Emerson’s 1841 essay, advocates independent thought as a human ideal, above and beyond the confines of traditional, unquestioning society. Emersonian Transcendentalist thought influenced many other emerging figures, including the feminist thinker Margaret Fuller, who believed society, males and females alike, to be suffering from a lack of gender equality. Fuller took t... ...of minds, gains the capability of self-reliance. Emerson depicts his homeostatic society as governed by the tyranny of the fickle majority: â€Å"the sour faces of the multitude, like their sweet faces, have no deep cause,—disguise no god, but are put on and off as the wind blows, and a newspaper directs. Yet is the discontent of the multitude more formidable than that of the senate and the college,† (Self-Reliance 1164). This is paradoxical, in that the American people should ideally be free, but are instead manipulated by the tyrannical masses. If all Americans are governed by an oppressive majority, it seems that nobody is yet free. It would, therefore, follow, that some institutional or governmental reform should be necessary before anybody, man or woman, can be free enough to become self-reliant and, through Emersonian ideals, change society internally.

What does china has an ageing population?

China, the second larges country in the world, is facing a serious problem — ageing population. Before 1979, when Mao was the chairman of China, he persuaded women to have lots of babies in order to finish his plan – the Great Leap Forward. This is the start of the ageing population in China. In January 1958, Mao launched the second five year plan known as the Great Leap Forward. 1Mao wanted China to become a world power. He wanted to catch up with the west by ending Chinese dependence upon agriculture. His aim was to catch up with UK in the industry products in ten years time and with America in 15 years time. In order to do this, he will need lots of peasants but many of them die during this progress. This is why Mao encouraged women to have lots of children. In the DTM, the birth rate at stage 2 and 3 are both very high and this is due to requirement of Mao. China's population base increased â€Å"only† by another 100,000,000 on top of its 432,000,000 base.2 The magnitude of China total population increase so much that even the People's Republic of China found it hard to support. This is when One Child Policy (ICP) came in to control the over growing population. ICP is the birth control policy of the government of the People's Republic of China (PRC)3. When Deng Xiao Ping took over the power at 1978, he realized the overpopulation is a roadblock to economic development and also the death rate will increase due to the lack of food and water, then he came out with the ICP idea. In general, this policy is very successful because the birth rate has been reduced gradually starting at the middle of stage 3 in the DTM. The 1982 fertility survey shows the total fertility rate falling from around 6.0in the mid-1950s to well below 4.0in 19614. However, ICP leads to some other problem such as the ageing population. Since the ICP is introduced, the population has successfully decreased. However, the infant mortality increases at the same time. This is because as a Chinese tradition, the boys carry the family name but now, the families are only allow to have one child therefore the chance of having a boy is less then before. Because of this, some families may choose to kill the baby if it's a girl in order to carry the family name. This is not the only effect of ICP, since most families choose to have a boy rather than a girl, there will be more males than female in the future. The difference will also increase as the time pass by. As years go by, the medical care develops a lot in China therefore the life expectancy increase at the same time. Since the birth rate was so high is 1960s but then decrease so much when ICP is introduced, there are depend people then independent people. This slows down the economic development of China. When there are more dependent then the government will need to pay more than it earns. Since the dependent people can not earn their own living, the government will have to give them money and because the numbers of dependent people are so many, the money that was given to the dependents is more than the money China earns. The birth rate keeps dropping in China is due to one other main reason – as most of the people are now educated, they understand that if you want to raise up your children as best as you can, one child is more than enough. Also, the cost of having two children is normally too expensive for lower or middle classes. The time that is taken to look after them is too much if both parents are working. These are the main reasons why most of the parents choose not to have more than one child. In conclusion, China has an ageing population a problem is because the birth rate was really high when Mao was the chairman but then it decreases so much that ICP was introduced. The differences between that get worse and develop as the ageing population. Because of this problem, the economic developments is held back since the input and output is not balance due to part of the income is given to those dependent people. The death rate will increase dramatically when the dependent people die. This will affects reputation of China too.