Tuesday, November 26, 2019
Comparisons between America and South Africa essays
Comparisons between America and South Africa essays Although America might not like to admit it, there are definite parallels between their history prior to the civil war, and ours in South Africa. Almost certainly, for many years human beings have overlooked the major possibility of America being similar to Africa. Comparisons were ignored etc. But are these notions really as impossible as we were brought up to think? How could we possibly have had the same beginnings/history as one of the worlds superpowers? During this essay I am going to concentrate more on the development of the Americas as opposed to the development of South Africa as we have spent countless time and effort studying it in the previous years. Both were discovered by colonists trying to find a sea-route to India. The first known inhabitants of South Africa were the San and Khoikhoi hunters and gatherers who were followed southward by Bantu-speaking peoples between AD 1000 and 1500. The san, were hunter-gatherers, did not grow crops. They were migratory and moved in small groups. They were a very peaceful group of people. However, the medicine man, who was responsible for divination and curing the sick, played a pivotal role in these small communities. Diet consisted of variety of animals including shellfish and rhinos. They did not use metal; their weapons were made from wood, bones and stone. The women collected berries, leaves, bulbs and the roots of various plants. However, about 2000 years ago the discovery of livestock from the North and its impact on the hunter-gatherers lifestyle created friction between them and the pastoralists, mainly because the San saw the pastoralists as being invasive to their territory, and their animals as being invasive of their territorys natural resources . This was mainly because the idea of individualism was introduced; a contrast to the tradition of the San that all the resources of their territory- water, animals and plants- were the com...
Saturday, November 23, 2019
Virga Precipitation and Dry Thunderstorm
Virga Precipitation and Dry Thunderstorm Virga is the name given to precipitation (usually rain) that evaporates or sublimes before it hits the ground. It tends to lookà like wispy gray streaks hanging underneath the base of a cloud. For this reason, you may also hear virga referred to as fallstreaks. The storms that are associated with virga produce trace amounts of ground level precipitation only. Why the funny name? Keeping in the tradition of cloudsà whose names are Latin, the term is derived from the Latin word virga, meaning twig or branch, likely referring to the thin delicate streaks it produces. Relative Humidity is Under 50 Percent Virga is produced when precipitation falls from high clouds into extremely dry air (low humidity) and high air temperatures below. (Virga is commonly seen across the desert region of the Western United States, an area prone to both low humidity and high temperatures.) As the liquid raindrops or ice crystals hit the warm, dry air they absorb the high levels of heat energy which energizes the movement of their water molecules, transforming them straight into water vapor (sublimation). Eventually, as more and more precipitation evaporates into the air, the air becomes moister (RH rises). If precipitation is light, it can take several hours for the air to saturate. As the air saturates first aloft, then down to the surface, a kind of moist pathway is carved out that precipitation can follow to the surface as rain or snow. Virga On Radar Like all light precipitation, virga shows up on the radar as shades of light green (rain) or light blue (snow). However, with virga, while the radar may detect it, your eyes wont. If youve ever watched your radar screen and seen the leading edge of a rain or snow band over your location but not seen any rain or snow actually falling outside your door, then youve been tricked by virga before. This is common in winter, especially when waiting for the start of a snowstorm. Weve all heard our meteorologist say Its already snowing in the upper air, but the air at the surface is too dry to see it. Virga vs. Rain Shafts Its easy to mistake virga for a distant rain shaft (a dark curtain of rainfall extending from the base of a thunderstorm down to the ground). Whats the biggest give away for virga? If its virga, it wont reach the ground. Commas in the Sky It is also theorized that virga is partially responsible for creating hole-punch clouds. In addition, virga high in the atmosphere can reflect sunlight creating brilliant sun pillars and other atmospheric optics associated with sunlight. Edited by Tiffany Means
Thursday, November 21, 2019
Is mobile marketing the future of advertising Case Study
Is mobile marketing the future of advertising - Case Study Example By definition, Integrated Marketing Communication (IMC) is a new competitive weapon and way of companies to draw maximum benefits from one shot. In other words, it is a concept designed to give users of the marketing mix an opportunity to make use of all aspects of marketing communication such as advertising, sales promotion, public relations, and direct marketing a unified force, rather than permitting each to work in isolation (Kortler 2002). Varey (2001) considers integrated marketing as a paradigm shift towards more personalise, customer-oriented, technology-supported marketing systems. Under this new approach, it is recommended that different communications channels used by the company to communicate with prospective customers and customers be integrated. Such an action will result to a clear, consistent and compelling message about the company's product and services. The effect of which will be glaringly reflected on the sales record subsequently (Kotler. 2005). Integration of a company's marketing communication activities can avoid confusion and disaffection in the minds of consumers and buyers, offering a comfortable identity to customers and staff (Kotler. 2005). As marketing has shifted to a more one to one direction, marketers have employed different methods to get to their target markets. Mobile advertising is fast becoming the order of the day (Baker 2007). The current revolution of information and communication technologies is changing our business environment drastically: new technologies influence the way we organize our work and the environment in whic h we compete, introducing new rules and new relative powers among incumbents, newcomers and even entire markets. This complex, evolving environments are referred to as New Technology Playgrounds (Ace 2001). Against this background, this paper seeks to answer the following questions Is mobile marketing the future of advertising' What are the variables that motivate companies to use mobile advertising' How do mobile marketing differs from the other advertising methods' What has been the trend in mobile marketing in the last five years' What proportion of the advertisement budget is allocated to mobile marketing' 1.1 Objectives and Purpose of Study This paper focuses on the growing trend of mobile marketing as a new way of advertisement. In particular, the paper seeks to analyse and evaluate if mobile marketing represents the future direction of advertisement. Other objectives include To examine the salient features of mobile marketing as compared to the other advertisement method. The paper also aims at analysing mobile marketing trend in the last five years through an examination of the budget allocated towards mobile marketing. 1.2 Importance and Significance of Study This study aims at delineating the use of mobile marketi
Tuesday, November 19, 2019
Biochemistry - Cystic Fibrosis Essay Example | Topics and Well Written Essays - 250 words
Biochemistry - Cystic Fibrosis - Essay Example In some cases, the CFTR protein is prevented entirely to take place at all and in some cases, CFTR protein does produce and get its way into the cell membrane but cannot operate properly. One way of treatment method is to supply a different class of chloride channel to compensate for the loss of the CFTR chloride channel. Gene therapy could be a better solution in future in which a normal copy of the CFTR gene to the cells is delivered. In this way, direct synthesis of the normal CFTR protein will be possible to treat the biochemical abnormality leading to cystic fibrosis. Introducing healthy gene will take over all functions of the CFTR protein that are necessary including those which are yet not known. And the best way of gene therapy is to exploit the ability of viruses bringing their DNA to enter into cells. Adenoviruses are suitable for this purpose due to their natural tendency to infect human
Sunday, November 17, 2019
Investigate into the Primacy and Recency effect Essay Example for Free
Investigate into the Primacy and Recency effect Essay The aim of this study was to investigate into the Primacy and Recency effect. The study was based on Glanzer and Cunitzs research (1966) who suggested that when remembering words, if given an interference task, the recency effect will be virtually eliminated. It was therefore predicted that when a group of participants were recalling words after having an interference task there would be little, if no recency effect. However it was also predicted that when an interference task was not involved there would be both a primacy and recency effect. The experiment was conducted on two groups of participants, 20 in each group. They were all students between the age of 16 and 18. This was an independent experiment. The findings form this study indicated that there was less of a recency effect when using an interference task then when not. Introduction The aim of this investigation to find out whether people remember material at the beginning of a list better than material at the end. A further aim is to show that when participants take a memory test with the involvement of an interference task there is no recency effect. The recency effect can be defined as the tendency to recall items at the end of the list more readily than those in the middle (about the last 25%). The recency effect occurs due to the last lot of information still being in short term store. A familiar example of the recency effect is the observation that a pop group is only as good as there last hit song. People tend to remember things more clearly if they have happened recently. The recency effect can be measured using free recall, where participants are shown a list of words, and the later asked to recall them. The recency effect is shown by the fact that the last few words in the list are usually remembered better than the middle. However, Glanzer and Cunitz (1966) found that counting backwards for only 10 seconds between the end of the list presentation and the start of recall (thus producing and interference task) virtually eliminated the recency effect, but had no other effect on recall. This can be explained by the fact that the counting backwards interfered with the process of creating memory and so this wiped out the words towards the end of the list. It can be seen that the rest of the list was not affected by the interference task, as they were now in long-term memory store. In Glanzer and Cunitz experiment the participants recalled the first few items in the list much better than those in the middle, this is known as the primacy effect. The primacy effect can be defined as a high level of free recall of the first items in a list (about the first 25%). The primacy effect depends mainly on rehearsal, in that the words at beginning of the list are rehearsed for longer than those in the middle. The primacy effect was shown by Rundus and Atkinson (1970), who asked their participants to rehearse out loud any of the words they wanted to during list presentation. The recency effect is found when the results of a free recall task are plotted in the form of a serial position curve. Generally, this curve is U-shaped, and the recency effect corresponds to the tail of the U on the right. This tail indicates that words presented at the end of a list of to-be-remembered items are better remembered than words presented in the middle of this list. It is called the recency effect because these items were the ones presented most recently to the subject in the memory experiment. The primacy effect is found when the results of a free recall task are plotted in the form of a serial position curve. Generally, this curve is U-shaped, and the primacy effect corresponds to the tail of the U on the left. This tail indicates that words presented at the start of a list of to-be-remembered items are better remembered than words presented in the middle of this list. It is called the primacy effect because these items were the ones presented first to the subject in the memory experiment. The diagram below shows the multi-store model of memory designed by Atkinson and Shiffrin (1968). It shows us how rehearsal is a vital part of the memory system. This model of memory can help to explain why interference will eliminate the recency effect. The recency effect is part of the short-term memory store, in that it is the last piece of information taken in and so, like all information, it goes into short-term store first. What allows us to remember this information is through rehearsal, thus temporarily keeping it in short-term memory store. It is therefore clear to see that if rehearsal is taken away, as it is through an interference task, then there will be no recency effect. Experimental hypothesis If given a list of words to remember, involving an interference task, when recalled there will be a strong primacy effect, and little, if no recency effect. This, one tailed hypothesis was formulated as previous research has indicated the existence of a primacy effect, and the elimination of the recency effect when using an interference task. However when undertaking the same task without interference there should be both a primacy and recency effect. Null hypothesis If given a list of words to remember involving an interference task, when recalled there will be no difference between how strong the recency and primacy effect is. Method Within this investigation there are two groups of participants, consisting of 20 different people in each group. The participants used were all A level students and were asked at random if they willing to take part. Some of these students studied psychology at A level themselves and so may have known what the investigation was about, thus possibly affecting the final results. The type of design being used is that of independent measures. There are two main variables in this investigation, which will later be correlated; these are word number and the total number of times each word was remembered by the participants.
Thursday, November 14, 2019
Comparing and Contrasting the Novel and Movie Version of The Grapes of
Comparing and Contrasting the Novel and Movie Version of The Grapes of Wrath John Steinbeck wrote the The Grapes of Wrath in 1939 to rouse its readers against those who were responsible for keeping the American people in poverty. The Grapes of Wrath tells the story of the Joad family, migrant farmers from Oklahoma traveling to California in search of an illusion of prosperity. The novel's strong stance stirred up much controversy, as it was often called Communist propaganda, and banned from schools due to its vulgar language. However, Steinbeck's novel is considered to be his greatest work. It won the Pulitzer Prize, and later became an Academy Award winning movie in 1940. The novel and the movie are both considered to be wonderful masterpieces, epitomizing the art of filmmaking and novel-writing. Although both the novel and movie form of Steinbeck's The Grapes of Wrath are considered to be American classics, the novel provides a deeper understanding of the story's time and meaning. Absent from the film, the novel's interchapters provide a greater understanding of the time in which The Grapes of Wrath takes place. First, in the movie it is unclear why the Joads are forced to abandon their farm. It is described very briefly by Muley Graves, leaving the audience in a state of confusion. However, in the novel, Chapter 5 explains exactly why the farmers are forced to leave. In this interchapter, Steinbeck uses a dialogue between a farmer and a representative from a bank; the farmer is forced to leave because the bank, or the"Monster" as Steinbeck says, needs to make a profit, and if the farmer cannot produce any goods to pay off debts, then the bank forecloses the land. This happened to many farmers in the 1930's due to a dr... ...h provides a more sensational experience than the movie. The novel gives the reader a complete feeling of the time period. It describes in every detail the situation of the Joads, as well as other farming families forced to be refugees from their homeland. On the contrary, the film leaves the reader questioning as to what exactly is happening in America in the 1930's. The novel enthralls the reader with its beautiful descriptions of the setting, and its deep symbolism. On the other hand, the film is barren, dry of symbolism and color. The movie is focused solely on the plot, depriving the audience of Steinbeck's unbelievable writing skills. Despite the fact that both the movie and novel form of Steinbeck's Grapes of Wrath are viewed as American classics, the movie is almost insufferable when compared to the wonderful masterpiece in the novel form of Grapes of Wrath.
Tuesday, November 12, 2019
How Shakespeare Presents Helena Essay
Helena is clearly longing for something to make her like Hermia in hope that Demetrius would see some of Hermia in her. She is also jealous of Hermiaââ¬â¢s beauty. It also shows us that she is insecure about her own appearance. The audience wouldââ¬â¢ve felt sorry towards her at this point as she is clearly devastated about Demetrius. A bit more into the play Helena expresses her confusion and betrayal towards Demetrius. ââ¬Å"For ere Demetrius looked on Hermiaââ¬â¢s eyne, / He hailââ¬â¢d down oaths that he was only mine. / And when this hail some heat from Hermia felt,/ So he dissolvââ¬â¢d, and showers of oaths did melt. In this metaphor Helena is saying that Demetrius had made so many promises to her like balls of ice (hail stones) but when Hermia came along he made broke them causing Demetriusââ¬â¢s promises to have melted. We feel sympathetic towards Hermia as Demetrius led Helena on, making all of these promises when only later he would break all of them. Desp eration is shown when Helena tells Demetrius about Hermia and Lysanderââ¬â¢s plan to run away, betraying Hermia in the process. She is so desperate that she betrayed her best friend, Hermia. It was a bit hypocritical of her to betray Hermia and endangering their friendship like that when later on she accuses Hermia of throwing away their friendship when actually Hermia was stating the truth. ââ¬Å"But herein mean I enrich my pain, / To have his slight thither, and back again. â⬠In this quote it shows that Helena has come to the conclusion that Demetrius would never love her. So she would betray her best friend to just be pleased with by Demetrius but this doesnââ¬â¢t seem the case when you read later on in the play that Demetrius gets even more irritated with Helena. Helena is basically saying that even though it would pain her to see Demetrius chasing after Hermia she would still do it. At this moment the audience wouldââ¬â¢ve felt annoyed and sympathetic. The audience annoyed at Helena because she had ruined her best friendââ¬â¢s plan just to help her in her love life. This would be considered as selfish. However we would be sympathetic towards her as she has completely given up on being loved by Demetrius. However when her wishes are finally granted she doesnââ¬â¢t believe it creating a huge argument: ââ¬Å"Wherefore was I to this keen mockery born? When at your hands did I deserve this scorn? â⬠At this point Helena lets out all the insecurities, anger and sadness sheââ¬â¢s ever been feeling. Her life for the last couple of months has been an emotional rollercoaster. ââ¬Å"Isââ¬â¢t not enough, isââ¬â¢t enough, young man, / That I did never, no, nor never can/ Deserve a sweet look from Demetriusââ¬â¢ eye/ But you mu st flout my insufficiency? â⬠The repetition that she uses suggests that she is so angry at Demetrius that she repeats her words; sheââ¬â¢s so angry that she cannot think straight. The whole reason sheââ¬â¢s angry is that she thinks that they are mocking her as Helena cannot believe anyone could possibly love her as she is so used to being rejected. If Demetrius couldnââ¬â¢t love her, who would? Her low self esteem also appears into her passage and her words. Helena feels confused at how anyone could ever like her and most of all outraged that her friends would mock and make fun of her. The audience feel humoured at this situation as Helena is claiming that Lysander and Demetrius donââ¬â¢t love her when actually they are in love with her to the point of madness. We also feel sorry towards her as she sees herself as a reject. At the end, when the confusion is solved and Helena finally has Demetrius she says some final words. ââ¬Å"So methinks; / And I have found Demetrius, like a jewel, / Mine own, and not mine own. â⬠In this metaphor she compares Demetrius to a jewel like she had been digging for a diamond and had finally found it. It shows how much Helena values Demetrius. At this point she finally realises that Demetrius actually does love her. At this point the udience would be feeling happy for Helena as sheââ¬â¢s finally cheerful. However they might think that Demetrius doesnââ¬â¢t actually deserve Helena. In conclusion, Helena is showed as a heartbroken and desperate girl at the beginning then at the end she seems happy. The audience experience a range of emotions towards her, including sympathy, irritation and happiness. At the end of the play, we are likely to feel happy and satisfied because she finally has what she wan ts. Also throughout the whole play she is always depressed, sad or scolding herself.
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