Thursday, October 31, 2019
Multinational Company and Its Organizational Goals Case Study
Multinational Company and Its Organizational Goals - Case Study Example Organization structure should be chosen based on its strategy (Bartol and Martin, 1998, p. 251 - 278). For example, suppose an organization is making or delivering large volumes of only a few products or services in the same geographical area, and these are very similar to each other. All the organization needs to do is coordinate the various departments, then departmentalized or functional structure works best. Departmentalization allows people to specialize in a function, and achieve economies of scale. Suppose the organization is producing or delivering several products or services in the same geographical area, and these products are very dissimilar from each other. Then, it is better to organize along product lines. This is because one product does not have anything to do with the other, there are no economies in the functional structure for this case. On the other hand, giving each product its independent departments lets the product managers serve their customers more efficien tly. Suppose the organization is producing or delivering several products or services to several different customers whose demands are very different. Then it is better to organize along customer lines so that the managers can work towards satisfying each customer according to his or her needs. The same logic goes for organizing on the basis of country or region. If the organization is making products in several places with different tastes and demands, the organization should organize along geographical lines.
Tuesday, October 29, 2019
WestJet Airlines Ltd. WestJet and Air Canada Term Paper
WestJet Airlines Ltd. WestJet and Air Canada - Term Paper Example It also has a loyalty card and rewards program (WestJet, n.d.). Key Features and Benefits The company renders flight security services with also helping the people book flights, hotels and car rentals from airports online. In terms of special benefits the company renders special privileges for persons relating to special categories and also pertaining to the maternity category (WestJet, n.d.). WestJet in competition to Air Canada has introduced ââ¬Ëpremium economyââ¬â¢ seats to help the consumers enjoy an extra leg space that would be made available in the first four rows of the airlines. Though the booking of the ââ¬Ëpremium economyââ¬â¢ seats would tend to charge more from the consumers yet a comparison drawn reflects that the charge is half than charged by other premium airlines in the course of rendering boarding and on-flight amenities to its passengers. This premium seating model of the company helps WestJet to continue with its low cost position (Hasselt, 2012). We stJetââ¬â¢s Product Life Cycle The Product Life Cycle curve for a company has four stages like Introductory, Growth, Maturity and Decline. WestJet reflects a growth in terms of market revenues and passenger traffic along the periods ranging from 2007 to 2011 from $2127 to $3072 million and from 14,545 to 21,186 million respectively. Thus WestJet falls in the Growth stage (WestJet, 2011, p.6). Products Rendered by WestJet and Consumer Needs WestJet renders online booking of flight, hotel and other hospitality services for both business and corporate passengers along with vacationers. Along with insurance and security benefits the company also renders an extensive reward program catered to meet the needs of loyal consumers (WestJet, 2011, p.10-14). Passengers through the above services can book their flights and hotels associated with the airline company in an online fashion that helps in making their tour more comfortable. Insurance and security benefits help the passengers retrie ve their expenses related to their vacation and tours in cases of any emergency. Further the loyalty scheme of the airlines company helps the consumers avail special discounts and promotions rendered by WestJet during special occasions. WestJetââ¬â¢s Offerings vs. Its Competitors West Jetââ¬â¢s service offerings in comparison to other flight servicing companies operating in the Canadian landscape like Air Canada and American Airlines gain dominance in being able to provide the best quality of service at highly affordable or economic rates. Moreover the company operating on the basis of hub and spoke model reflects higher interconnectivity than its competitors (Grant, et al., n.d.). When, How and by Whom are the services of WestJet Procured Flight touring services and amenities rendered by WestJet are procured by people in times of deciding on vacations and also while planning to take short business tours. Services and amenities rendered by WestJet relating to booking of flight s, hotels, car rental services along with travel insurance benefits can be availed by the consumers through the help of online portals. The consumer or passenger traffic in WestJet consists thus of passengers that are frequent vacationers or are tending to visit places relating to their business and professional needs (WestJet, 2010, p.9; Lamb, 2011, p.571). Market Segments of WestJet WestJet mainly focuses on being a low-cost carrier rendering services to economy class passengers. Moreover the airlines company also caters to the needs of consumer segments through the transportation of cargo commodities on board (Aylen, 2012, p.250). Consumer or market segmentation of WestJet can be made in terms of Leisure Class Passengers that tend to avail flights for tour or vacation
Sunday, October 27, 2019
Literature Review On Web Usage Mining Computer Science Essay
Literature Review On Web Usage Mining Computer Science Essay The Internet has become the largest database ever existed. During the early times of this decade it has been estimated that the internet is having more than 350 million pages [11]. But through a research conducted a few years ago it was found that the indexed part of World Wide Web alone consists of a minimum of 11.3 billion pages [12]. Also the number of people using the internet is growing exponentially. A survey conducted by Computer Industry Almanac itself is an evident for this fact. According to the results of the survey the number of online users had crossed one billion in 2005 while it was only 45 million in 1995. They had also predicted the number to cross two billion by 2011[13]. For the users of the internet finding the required information from this large volume of data has become extremely difficult. So it has become essential to find efficient ways for information retrieval. Also it has been found that more than 90% of the data is in unstructured format. So organizing and structuring this data has become a very important issue among researchers. With this large amount of information available on the web business processes needs to transcend from simple document retrieval to knowledge discovery. Business people were trying to get useful patterns from the available data which will help them for better understanding of their customer needs which in turn provides better customer satisfaction. Literature Review on Web Usage Mining Web mining helps the web designers in discovering the knowledge from the information available in the web. Also it helps the users in getting the fast retrieval of the information they are looking for. Three major areas of web mining are Web content mining- Trying to get useful information from the text, images, audio and video in web pages Web structure mining- Trying to understand the link structures of the Web which will help in categorization of Web pages. Web usage mining- Trying to get useful information from the server logs to understand what the users are looking for. It also helps in personalization of web pages. Though all the three categories of web mining are interlinked, in this research we were going to discuss about the web usage mining. Web usage mining helps the web masters to understand what the users were looking for so that they can develop the strategies to help the user to get the required information quickly. Web mining is generally implemented by using the navigational traces of users which give the knowledge about user preferences and behavior. Then the navigational patterns were analyzed and the users were grouped into clusters. The classification of navigational patterns into groups helps to improve the quality of personalized web recommendations. These web page recommendations were used to predict the web pages that are more likely to be accessed by the user in near future. This kind of personalization also helps in reducing the network traffic load and to find the search pattern of a particular group of users. Data mining techniques like, clustering, sequential pattern mining and association rule mining were used in web mining. All these techniques were used to extract interesting and frequent patterns from the information recorded in web server logs. These patterns were used to understand the user needs and help the web designers to improve the web services and personalization of web sites. Web Access Sequence Generally the web usage mining will be done based on the navigation history stored in the logs of the web server. This navigation history is also called as Web Access sequence which will contain the information about the pages that a user visit, the time spent on each page and the path in which the user traverse with in the website. So the web access sequences will contain all the details of the pages that a user visited during a single session. This data that we get from the log files will be subjected to various data mining techniques to get the useful patterns which can describe the user profile or behavior. These patterns will act as the base knowledge for developing the intelligent online applications, to improve the quality of web personalization, web recommendations etc The web mining can be generally classified in to two categories online mining and offline mining. In offline mining we use the data stored in the log files to find the navigational patterns while in online mini ng the requests of users in his current active session will be used. Current user profile will be decided by matching the recommendations from both the online and offline methods. Several systems have been designed to implement the web usage mining. Among many Analog is one of the first systems developed for Web Usage mining. It has two components online component and offline component. The offline component will reformat the data available in the log file. Generally the web server log will contain the information like IP address of the client, the time in which the web page is requested, the URL of the web page, HTTP status code etcà ¢Ã¢â ¬Ã ¦ Then the data available will be cleaned by removing the unwanted information after which the system will analyze the users activities in the past with the information available in the log files of the web server and classify the users session into clusters. Then the online component will classify the active user sessions based on the model generated by the offline component. Once the user group is found then the system will give a list of suggestions to each user request. The suggestions will depend on the user grou p to which the user belongs. Clustering Techniques One of the important portions of web usage mining is the process of clustering the users in to groups based on their profile and search pattern. The clustering of the users session can be done in several ways. Christos et al. represents each page as a unique symbol which makes the web access sequence to a string [1]. Consider S as the set consisting of all possible web access sequences. Then the web mining system will process this set S in offline as a background process or during the idle time to group the pages in to clusters such that similar sequences were in the same cluster. The formed clusters were represented by means of weighted suffix tree. The clustering is done by constructing a similarity matrix [1] which then is given as input to k windows clustering algorithm [10] to generate the clusters with very similar Web access sequence. When two web access sequences have the same length then the global alignment has to be taken into account rather than the local alignment. Also the scores were calculated for both the local and the global alignment. A simple way to calculate the scores is to assign a positive value to a matching sequence and a negative value for a mismatch. Two web access sequences were said to be similar if they have the maximum alignment in their sequence. Some times the web pages listed in the sequence may be unimportant to the user. The user may have reached that page by a wrong click. In such cases the users will immediately leave that page. So the user will stay only for a short time in these kinds of unimportant pages. So before considering the web sequence alignment we have to take care of all these factors in order to get the useful patterns. C.Suresh et al had proposed an approach in which the clusters were identified based on the distance based clustering methods also they had developed a framework to compare the performance of various clustering methods based on the replicated clustering. In traditional methods, the distance between two user sessions will be calculated using the Euclidean-distance measure. But experiments show that the Sequence Alignment Method is better in representing the behavioral characteristics of web users than the Euclidean-distance method. Cadez et al [14] categorizes the users session as general topics and the behavior of each particular topic is represented by morkov chain. Fu et al. [15] uses Balanced Iterative Reducing and Clustering using Hierarchies (BIRCH) algorithm for clustering at page level. BIRCH is a distance-based hierarchical algorithm and it is used for clustering the web user sessions. It has been noticed that the increase in the number of pages is diminishing the performance of the BIRCH algorithm. Since each website contains hundreds of pages considering each page as a separate state will make the clustering unmanageable. To overcome this difficulty the authors proposed an approach to generalize the sessions using attribute-oriented induction. In this new approach the clustering of pages will be done at the category level. It is has been always a difficult job to map a particular page to a specific category but it can be done by using clustering algorithms. The commonly used algorithm for clustering is k-means algorithm but the major disadvantage of k-means algorithm is, we have to specify number of clusters to be found in advance which is not possible in real world scenario. To overcome this problem, researchers were using the fuzzy ART neural networks, an unsupervised learning approach. In this approach there is no need to specify the number of cluster in advance. The main issue with fuzzy ART neural network is the category proliferation which leads to the unrestricted growth of clusters. Sometimes the fuzzy ART network will produces a large number of clusters with only a few members in each cluster. After considering the merits and demerits of both the algorithms the authors had proposed a hybrid approach called FAK. The FAK algorithm has two phases in the first phase fuzzy ART is used as an initial seed generator to generate the clusters. From the identified clusters we will remove the cluster whose centroids were nearer to others t hereby addressing the category proliferation problem. The first phase will be followed by applying the k-means algorithm in the second phase to get the final clusters. They found that the FAK algorithm performs much better than the other methods. The most important to be considering during the clustering is the number of user sessions that should be taken into account for clustering. In most cases the designers will decide it is enough to consider the first N sessions of a user for the decent recovery of his web cluster. Also they will decide whether to consider or not the sessions with the short session lengths because those sessions may not be helpful in identifying the clusters. So the two main factors we have to consider while performing the clustering is the number of user sessions to be considered and the minimum session length. Combining the web content mining and web usage mining An experiment was conducted in order to extract the navigational pattern of the websites user [6]. The experiment aims at predicting the users gender and whether they are interested in certain website sections. The results of the experiment were analyzed and it is found that the model was only 56% accurate. The reason for low accuracy is found to be the failure to include the web content in the classification model. It is believed that exploring the content of the page will helps in better understanding of the user profile thereby the classification accuracy will be improved. The web usage mining and web content mining can be combined together and it is used in the area of web personalization. In the web personalization the contents of the web page will differ for each user according to their navigational pattern. In this technique the web links that the user may visit in the near future will be predicted based on their profile. Those predicted links will be dynamically displayed in the webpage that the user requested. Also web links of the frequently visited pages will be highlighted at the same time pages which were not visited for a long time will be removed. This hybrid approach is implemented by doing an initial clustering based on the contents of the web pages followed by the Web Access Sequence alignment. Text clustering can be done effectively by spherical k-means algorithm [10]. Since the multiple sequence alignment consumes more time and space it can be effectively replaced by the iterative progressive alignment. Weighted suffix tree is used to find the most frequent and important navigational pattern with little memory and computational costs. It has been proved that the content exploitation has improved the performance by 2-3%. In the model proposed by Liu [7] the contents of the web pages and the information from the web server log files is used together in order to extract the meaningful patterns. The extracted contents of the web page represented by means of character N-grams. The users of the web site can be classified by two approaches namely proactive and reactive approach. The proactive approach tries to map each request to a user before or during the users interaction with the site. While the reactive approach maps each request to a user after the user completes the interaction with the site. In order to use the proactive approach the browser cookies needs to be enabled and it is necessary that the user must be aware of cookies. So it is always easy to use reactive approach which does not require the user to have any prior knowledge. An experiment has been conducted with 1500 sample sessions to evaluate the proposed method. The results show that the system is 70% accurate in classification and 65% i n prediction. The success of the website also depends on the user perceived latency of documents hosted in web server. It is obvious that short User Perceived Latency will have a positive effect towards the user satisfaction. This has been also proved by a study conducted by Zona Research Inc. in 1999. The study shows that if a web site takes more than eight seconds to download then a 30% of the visitors is more likely to leave the site [35]. User perceived latency is influenced by many factors like fast internet connection, increasing the bandwidth of ISP, etc One way to reduce the UPL is by using the browser cache. In this approach frequently accessed will be pre-fetched and stored in browser cache. Generally Web cache is implemented by using the proxy server. All the requests from the user to a web server will be interpreted by the proxy servers. If the proxy server has a valid copy of the response then it will give the results to the users. Otherwise the requested will be forwarded to the original server. The real server will send the response to the proxy server. The proxy server will retain a copy of the response in the cache and then send the results to the users. The main Problem with the web cache is if the cache is not up to date then the users will be provided with stale data. Also if a large amount of users access a web server simultaneously then it may results in severe caching problems which may results in the unavailability of the web pages. To overcome all these issues author suggested an approach which combines the web prefetching and caching together. In this approach we have to first identify the objects that needs to be pre-fetched in a web cache environment fr om the information available in the log files. After identifying the objects we have to group these objects into clusters for each client group. When a user requests for an object first he will be assigned to one of the client group then the proxy server will fetches all the cluster objects of that particular client group. Finally the requested object will be delivered to the user. To have a minimal UPL we have to predict the users preferences based on the pages he had already visited. The importance of the page is determined by the weights assigned to the page by the algorithm. If two or more pages have the same weight then we rely on the page rank. Page Rank [22] is A probability distribution used to represent the likelihood that a person randomly clicking on links will arrive at any particular page. Page rank can be assigned to the document of all sizes. If a document is having a page rank of 0.5 then it means that if a user clicks on a link randomly then there is 50% probability for the link to land on the particular document. Consider a web site consisting of four pages P1, P2, P3, and P4. Initially the page rank of all the pages will be same. Since there are four pages each page will be assigned with a page rank of 0.25. If all the pages P2, P3 and P4 posses link to only P1 then each of the three pages will contribute 0.25 page rank to P1. The page rank of P1 can be calculated by using the following formula. PR (u1) = PR (u2) + PR (u3) + PR (u4) If suppose page P2 is having another one link to page P3 and if P4 is having links to all the three pages then the link-vote value will be divided among all the outbound links of a page. So Page P2 will contribute 0.125 to page P1 and 0.125 to page P3. Similarly P4 will contribute one third of its page rank value to P1. The general formula for calculating the page rank value for any page is as follows. PR (u) =à ¢Ãâ ââ¬Ë PR (v) Bp is the set of all pages linking to page P L (v) is number of links from page v Web Page recommendation is an important section in web personalization. Weighted Association rule mining is used to predict the page recommendations. In this method we assign a weight to each web page. The importance of the page is determined by the weight assigned to the page. In this approach the weight for each page is assigned based on the frequency in which the page is visited by the user and the time spent by the user on a particular page. The frequency weight of a page FW is calculated using the following formula FW (p) =Number of visits on a page (P) Total number of visits on all pages X PR (P) Where PR is the page rank of p. Time spent on each page reflects the relative importance of each page for a user. Bcause the user will spend more time on the page he is interested in and he will quickly traverse the other unwanted pages. The two factors that we have to consider while calculating the actual time spent on a page is as follows. The size of the web page and the transfer rate, the assumption is that the transfer rate is constant for a user then the time spent on a page will be inversely proportional to the amount of useful information available to the user from that page. The weight of a page can be calculated using the following formula TW (P) =Time spent on a page (p)/page size of (p) Max pÃâ à P Time spent on a page (p)/page size of (p) Based on these two values the total page weight is calculated as follows W (p) =FW (p) +TW (p) According to the page rank algorithm, the link to important page will appear as an outbound link in many pages. Web prefetching reduces the latency. In prefetching the networks idle time is utilized to fetch the anticipated web pages. In [7] Chen et al. proved that the cache hit ratio had enhanced to 30-75% through pre-fetching. Also the access latency can be reduced by 60% when we combine the caching and pre-fetching techniques [8]. Pre-fetching takes place only if the network bandwidth is less than the predetermined threshold also only the web pages that are not available in the cache will be pre-fetched. Pre-fetching increases the network traffic but at the same time it helps in reducing the latency. Several approaches were available for web pre-fetching like Top-10 approach, Domain-top approach, etc In top-10 approach web proxies will be periodically updated by the web servers regarding the most popular document information. The proxies will then send this update information to the clients [9]. In domain-top approach the web proxies will first search for the popular domains and then it looks for the important documents in each domain. A suggestion list will be prepared for the user with the knowledge of the proxy server about the popularity of domains and documents and this list will be used for users future requests. In this dynamic web pre-fetching technique user preference list will be maintained for each user which will contain the list of web sites which will be available for immediate access to the user. This user preference list will be stored in the database of the proxy server. Dynamic web pre-fetching technique uses the intelligent agents to monitor the network traffic. When ever the network traffic is low then the system increase the pre-fetching similarly in a heavy traffic it will reduce the pre-fetching thereby helps in utilizing the idle time of the network also maintains the traffic constant. The number of web links to be pre-fetched depends on the usage of bandwidth and weights of the web pages. While assigning the weights to the web pages preferences will be given to the links which are accessed frequently and recently. By using this technique the cache hit ratio has been increased by 40-75% and latency is reduced to 20-63%. The log file modeling is the important task in web usage mining. If we use an accurate model for modeling the web log file then the accuracy of web page prediction scheme will also increase. The most commonly used model is Markov model. In markov model each page represents the state and the visited sequence of a pair of page represents the transition between two pages. The accuracy of the traditional first order markov model is less because of the lack of in-depth analysis. In contrast the second order markov model is more accurate but the time complexity of the model is high. In [11] they had proposed a hybrid approach called dynamic nested markov model in which the second order markov model is nested with in the first order markov model. In the dynamic markov model the insertion and removal of nodes is much easier. The node will contain all the information about the web pages like the web page name, inlink list which is a list that contains the name of the previous web page, count of the web page which will represents the number of times the current web page is reached from the previous web page and the outlink list contains the list of nodes which contains the name of the next web page and its count. In this model the number of nodes will be always same as the number of web pages. Since we have replaced the transition matrix structure in the traditional markov model with the dynamic linked list the time complexity of the proposed model is less than the traditional model. Also the model covers The experiment conducted with the web site that serves 1200 users and receives a minimum of 10,000 requests per day. The experimental data is split into three sets DS1 which contains 3000 pages, DS2 with 1000 pages and DS3 with 1500 pages. It has been shown that DS1 has taken 537 ms and DS2 has taken 62 ms and DS3 has taken 171 ms. So it is evident that time taken for DNMM generation is directly proportional to the number of web pages and the size of the log file. The latency can also be reduced by client side pre-fetching. A prefetching model proposed by Jaing [3] is based on the users search pattern and the access rate of all the links in a web page. Each link will have a counter which will be incremented whenever it is clicked by a user. The access rate is the ratio of the links counter value to the counter value of that particular page. The pre-fetcher will fetch the web pages whose access rate is high. The main advantage of this model is that this model can be executed independently in clients machine. But the disadvantage of this model is that it will increase the processing overhead of the clients computer. Initially the web pages will contain one HTML document it may include some images. But in recent days several HTML documents were embedded in to a single web page. In such cases the browser displays the embedded documents along with the requested documents. These embedded documents decrease the prediction accuracy of the system. Also if the user requests a page by typing the URL in the browser navigation bar then these requested will not be taken in to account by any link analysis method. To overcome these drawbacks kim has proposed a prefetching algorithm. In this algorithm the request patterns were represented by means of a link graph. The nodes of the graph represent the unique URL of the HTML documents and the edges represent the hyperlink or an embedded link and it is directed from the referring document to the referred document. When a user requests a webpage then the access counter value of the node corresponding to that particular web page or document will be incremented by o ne. Also when a user traverses from one page to another page then the access counter value of the corresponding edge will be incremented by one. It has been assumed that the user is browsing a page that is displayed on the browser if the user does not make another request within a minimum interval of time. By this time the prefetching module will be executed and the prefetched documents will be stored in the cache. Agarwal, R. (2010). An Architectural Framework for Web Information Retrieval based on Users Navigational Pattern. Time, 195-200. Dimopoulos, C., Makris, C., Panagis, Y., Theodoridis, E., Tsakalidis, A. (2010). A web page usage prediction scheme using sequence indexing and clustering techniques. Data Knowledge Engineering, 69(4), 371-382. Elsevier B.V. doi: 10.1016/j.datak.2009.04.010. Georgakis, a, Li, H. (2006). User behavior modeling and content based speculative web page prefetching. Data Knowledge Engineering, 59(3), 770-788. doi: 10.1016/j.datak.2005.11.005. Jalali, M., Mustapha, N., Mamat, A., Sulaiman, N. B. (2008). A new classification model for online predicting users future movements. Architecture, 0-6. Kim, Y., Kim, J. (2003). Web Prefetching Using Display-Based Prediction. Science And Technology, 0-3. Liu, H., Keselj, V. (2007). Combined mining of Web server logs and web contents for classifying user navigation patterns and predicting users future requests. Data Knowledge Engineering, 61(2), 304-330. doi: 10.1016/j.datak.2006.06.001. Nair, A. S. (2007). Dynamic Web Pre-fetching Technique for Latency Reduction. Science, 202-206. doi: 10.1109/ICCIMA.2007.303. Nigam, B., Jain, S. (2010). Generating a New Model for Predicting the Next Accessed Web Page in Web Usage Mining. 2010 3rd International Conference on Emerging Trends in Engineering and Technology, 485-490. Ieee. doi: 10.1109/ICETET.2010.56. Pallis, G., Vakali, a, Pokorny, J. (2008). A clustering-based prefetching scheme on a Web cache environment. Computers Electrical Engineering, 34(4), 309-323. doi: 10.1016/j.compeleceng.2007.04.002. Park, S., Suresh, N., Jeong, B. (2008). Sequence-based clustering for Web usage mining: A new experimental framework and ANN-enhanced K-means algorithm. Data Knowledge Engineering, 65(3), 512-543. doi: 10.1016/j.datak.2008.01.002. S. Chakrabarti, M. van der Berg, B. Dom, Focused crawling: a new approach to topic-specific web resource discovery, in: Proceedings of 8th Int. WorldWide Web Conf. (WWW8), 1999. A. Gulli, A. Signorini, The indexable web is more than 11.5 billion pages, in: Special interest Tracks and Posters of the 14th International Conference onWorld Wide Web, Chiba, Japan, 2005. A. Banerjee, J. Ghosh, Clickstream clustering using weighted longest common subsequences, in: Proc. of the Web Mining Workshop at the 1st SIAM Conference on Data Mining, 2001 I. Cadez, D. Heckerman, C. Meek, P. Smyth, S. White, Visualization of navigation patterns on a Web site using model-based clustering, in: Proceedings of the Sixth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2001), Boston, MA, 2000, pp. 280-284. Y. Fu, K. Sandhu, M.-Y. Shih, A generalization-based approach to clustering of Web usage sessions, in: B. Masand, M. Spiliopoulou (Eds.), Web Usage Analysis and User Profiling: International WEBKDD99 Workshop, San Diego, CA, Lecture Notes in Computer Science, vol. 1836, Springer, Berlin/Heidelberg, 2000, pp. 21-38.
Friday, October 25, 2019
AIDS in Africa :: HIV AIDS essays research papers
The AIDS epidemic has reached disastrous proportions on the continent of Africa. Over the past two decades, two thirds of the more than 16 million people in the world infected with Human Immunodeficiency Virus (HIV), which causes AIDS, live in sub-Saharan Africa. It is now home to the largest number of people infected, with 70 percent of the worldââ¬â¢s HIV infected population. The problem of this ongoing human tragedy is that Africa is also the least equipped region in the world to cope with all the challenges posed by the HIV virus. In order understand the social and economic consequences of the disease, it is important to study the relationship between poverty, the global response, and the effectiveness of AIDS prevention, both government and grass roots. Half of the worldââ¬â¢s cases are found in what is referred to as the AIDS belt, a chain of countries in eastern and southern Africa that is home to two percent of the global population. The main vehicle for spreading HIV throughout Africa is heterosexual intercourse. In contrast, this is the opposite compared to the U.S. where the virus is usually transmitted through homosexual intercourse or contaminated syringes shared by drug users. Besides heterosexual intercourse, HIV transmission through transfusion and contaminated medical equipment is common in sub-Saharan Africa. Africans infected with HIV die much sooner after diagnosis than HIV infected people in other parts of the world. In industrialized countries, the survival time after diagnosis of AIDS ranges from 9 to 26 months, but in Africa the survival time for patients is 5 to 9 months (UNAIDS 3). Factors, such as lower access to health care, poorer quality of health care services, poorer levels of average health and nutriti on, and greater exposure to pathogens that cause infection all contribute to the shorter survival in Africa. It is difficult to stop the flood of AIDS cases in Africa because it is not yet known by researchers the factors that contribute to outstanding prevalence of the disease among heterosexuals. This diagnosis will help determine how likely it is that heterosexual epidemics will spread to Asia or the West. Even though AIDS is heavily researched, its origin still remains a partial mystery. It is know that HIV is a zoonosis, a human disease acquired from animals. The virus evolved from a Simian Immunodeficiency Virus (SIV): a type of slow virus found naturally in monkeys and apes which, while not harming the host, produces diseases in other primates (Caldwell 97).
Thursday, October 24, 2019
Enhancement (Philosophy) Essay
Cognitive enhancement is the improvement of oneââ¬â¢s mental capacity and or mental attributes such as personality, where it is considered optional and not medically necessary (Schmidt-Felzmann, 2012). Enhancement is different to treatment as treatment is linked to the curing of an illness, whereas enhancement is merely improving an already medically healthy body or mind, however, at times it is quite difficult to draw a line between the two (Schmidt-Felzmann, 2012). Types of enhancements include improving oneââ¬â¢s athletic abilities through the use of steroids, undergoing cosmetic surgery which is deemed medically unnecessary, or, reducing oneââ¬â¢s need to sleep through the consumption of drugs such as Provigil. Enhancements can even encompass things that are commonly availed of every day, such as the consumption of caffeine (Schmidt-Felzmann, 2012). There are many ethical and practical concerns in relation to cognitive enhancement and whether or not it should be allowed such as Authenticity (Keeping true to oneself), which is a key concern , with both proponents and opponents of cognitive enhancement interpreting authenticity in different ways (Parens, 2005). Two ethical frameworks have developed which try to answer the questions raised by cognitive enhancement and indeed enhancement in general, these frameworks are known as the existentialist model (Self creation) and the Rousseauean model (Gratitude) (Parens, 2005). These frameworks differ on whether or not cognitive enhancement should be allowed, the existentialist model being in favour of cognitive enhancement and the Rousseauean model opposed to the application of it (Schmidt-Felzmann, 2012). Along with authenticity there are other major ethical concerns that could arise from the widespread use of cognitive enhancing methods, namely drugs (Butcher, 2003). Such concerns include a possible increase in the gap between rich and poor and the possibility of the loss of values, namely the value of hard work, which helps make a human being what they are (Butcher, 2003). Philosophers and indeed people in general who favour the existentialist model value autonomy greatly and therefore believe that so long as a human being does not harm another, they should be free to do with their body or mind what they please. If these things may be quite ridiculous and inadvisable, existentialist still believe that they should be condoned, so long as the person in question is well informed on the issue (Schmidt-Felzmann, 2012). There is also a view that Humans not only have the ability but may also have the responsibility to enhance their condition, not only through normal everyday enhancements but also through artificial means, which are not seen as qualitatively different (within existentialist circles) to everyday enhancements (Schmidt-Felzmann, 2012). There are, however, some problems with this framework. For instance, in many cases the individual who is given a cognitive enhancement, is not always fully autonomous (Schmidt-Felzmann, 2012). This is the case in many poor urban areas in the United States, in many schools in these areas up to a third of boys now take Ritalin, even though a large portion of them do not suffer from ADHD (Farah et al. 2004). Using enhancements to simply subdue easily distracted and unruly children could be seen as ethically wrong, this is because a large percentage of children simply are naturally unruly and easily distracted (Farah et al. 2004). To change this, could be seen as changing the personality of the child in question to such an extent that they are essentially no longer the same child, here we see the question of authenticity rise again (Parens, 2005). It is in situations such as these that we see a clear divide between the two frameworks. Most proponents of framework one (self-creation) would be in favour of this sort of cognitive enhancement as they would view the child as essentially the same person, only improved, while the opponents of this framework hold a different belief (Parens, 2005). Proponents of framework two, or the Rousseauean model, place huge importance in the value of ââ¬Å"the givenâ⬠(Schmidt-Felzmann, 2012). In other words, they believe we should not tamper past our natural potential. This however gives rise to problematic questions, such as, where can we draw the line between natural and artificial enhancements? (Schmidt-Felzmann, 2012). Framework two argues that cognitive enhancement ignores fundamental facts about the human mind and its limits, it asserts that these limits should be respected. These beliefs could also be seen as a breach of authenticity. When we think of the effects that cognitive enhancement could have on human authenticity we think of the effects it might have on the identity of an individual. While this is important, it is also important to look at the human race as a whole and how cognitive enhancement and enhancement in general might affect its authenticity. From the Stone Age right up to the current social age, humans have constantly strove to improve themselves and their quality of life. In recognition of this, it could be argued that to not enhance our current state of being would be in violation of our nature and of our identity as human beings. When this view is taken it becomes clear that the Rousseauean model can also lead to a breach in authenticity, this, along with other reasons is perhaps why a large portion of philosophers show a certain level of ambivalence towards the two frameworks when it comes to major ethical matters (Parens, 2005). Enhancement, cognitive enhancement in particular, raises many ethical concerns. As already discussed, authenticity is a prime concern, however there are also other important matters which need to be considered before any decision is made on whether or not cognitive enhancement should be allowed. For instance, the introduction of cognitive enhancing drugs could lead to a widening in the gap between rich and poor (Butcher, 2003). This would be that case as such drugs would likely be out of reach (financially) to the lower classes of society. In the long term further problems would arise, as the poor would likely have little or no access to these cognitive enhancing drugs, the upper class would essentially develop into generally more intelligent beings. This would make it far harder for a member of the lower class to compete for college places or jobs (Butcher, 2003). It has been argued, however, that the risk of a widening of the gap between the wealthy and the poor should not be a factor to stand against the introduction of cognitive enhancers as enhancers such as third level education already do this (Butcher, 2003). Another ethical issue is the possibility of the loss of the value of hard work (Butcher, 2003). While this may not seem like such a pressing issue, one must first fully consider the implications this may have in the long term. Humans may use there increased level of intelligence irresponsibly due to a lack of experience gained from having to work hard to overcome obstacles. Along with these issues the safety of such drugs is also an important matter (Farah et al. 2004). It is clear from these observations that the possibility of distribution of cognitive enhancers amongst the public is a very contentious issue, which makes the question ââ¬Å"Should cognitive enhancement be allowed? â⬠a very difficult one to answer. In my opinion, cognitive enhancement should be allowed, although only under certain conditions. The production of such enhancers should be undertaken only by the government so as to ensure the fair and equal distribution of cognitive enhancers amongst all social classes. Drugs should be extensively tested before mainstream introduction in order to assure the safety of the product. These measures may, however, not be enough. Governments would have the means to manipulate the public by introducing other properties to cognitive enhancing drugs, For instance they could use certain ingredients to create a more patriotic and docile population this would be a prime concern in politically unstable countries or in those of communist leanings. Should the entire population of a country regularly take a drug, which was deemed essential to take, untold damage could be done to the human condition. A world without free will could develop, with the world population under the control of one drug, and those who produced it. Perhaps the cognition of the human race is not yet evolved enough to consider its enhancement. Bibliography: Parens, Erik. (2005) ââ¬Å"Authenticity and Ambivalence: Toward Understanding the Enhancement debateâ⬠Hastings Center Report, Vol. 35, Number 3, May-June, pp. 34-41. Schmidt-Felzmann, Heike. (2010) ââ¬Å"Personal Identity and Human Nature: The Enhancement Debate, Heike Schmidt-Felzmann 12/10/12. â⬠Philosophical questions & issues. [online. ] Available at: https://nuigalway. blackboard. com/webapps/portal/frameset. jsp? tab_tab_group_id=_2_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_31108_1%26url%3D%252Fwebapps%252Fblackboard%252Fexecute%252FdisplayIndividualContent%253Fmode%253Dview%2526content_id%253D_419734_1%2526course_id%253D_31108_1 (Accessed: 03/12/12.) Butcher, James. (2003) ââ¬Å"Cognitive enhancement raises ethical concernsâ⬠The Lancet, Vol 362 (9378) p. p 132ââ¬â133. Farah, Martha J. Illes, Judy. Cook-Deegan, Robert. Gardner, Howard. Kandel, Eric. King, Patricia. Parens, Eric. Sahakian, Barbara & Root Wolpe, Paul. (2004) ââ¬Å"Neurocognitive enhancement: what can we do and what should we do? â⬠Nature Reviews Neuroscience, Vol: 5. P. p 421-425.
Wednesday, October 23, 2019
Exploiting the Network: Synergy, Product Placement
The media industries have a suggestive and coercive power on society, embodied within the artifacts, images, and brands we consume. As these industries diversify, so do the products and the avenues in which they are offered. Synergy allows corporations the power to maximize advertising through a variety of cross-market promotional mechanisms, proliferating their products or logos exponentially. Initially, this essay requires an explanation of the use of synergy and cross-market advertising. Subsequently, I will illustrate how television shows such as Nickelodeonââ¬â¢s SpongeBob SquarePants and MTVââ¬â¢s The Osbournes and Total Live Request (TRL), use the vast internal synergistic network of their parent company Viacom. Such programming appears to exploit its viewer-ship through commodification ââ¬â product placement, branding, and celebrity endorsements. Synergy: The True Meaning of Cross-Market Advertising ââ¬Å"We are reaching a position where the challenge for the 1990s should be to seek a greater understanding of the best ways, creatively, to exploit the potential for media synergyâ⬠(Confer, 10) The concept of synergy is not new, however evidence suggests it has only been fully realized and exploited over the last decade. Synergy is created through the integration or combination of different but complimentary business interests, each feeding off the other. Ultimately, large corporations or conglomerates are diversifying their market interests rather than specializing. This diversification benefits the company by offering a new strata of opportunities thereby complimenting its existing functionality. An example of this is a movie production company allying or buying out a major video game provider. The synergy created from such a merger allows for a film and a video game to use the same characters, story line or premise. Synergy works for two reasons. Primarily, synergy is an engine that provides cross-marketing and cross-selling opportunities, which would allow for greater sales, exceeding what would be possible from each division separately. (Hesmondhalgh, 141). Secondly, corporations also ââ¬Å"plan and design texts, in order to encourage subsidiary spin-off textsâ⬠(Hesmondhalgh, 239). Even if these texts or preplanned products are not of great quality or a commercial success, they will still sell thus generating profit. This is because there is a pre-existing, underlying product network that has already been established through the fan base. If synergy can be classified as the ââ¬Å"the ability to keep cash flows inside a corporate familyâ⬠(Klein, 148), through its internal use of cross-market production, promotion, and sales; Sumner Redstoneââ¬â¢s Viacom is a perfect example of synergy at work. The Viacom Empire has tapped into many markets throughout the entertainment and media industry. Viacomââ¬â¢s major subsidiaries include: Nickelodeon ââ¬â childrenââ¬â¢s cartoon network; MTV ââ¬â music network; NBC ââ¬â television network; and Paramount ââ¬â movie production company, which also runs numerous theme parks all over North America. Klein, 2000, comments on this phenomenon as ââ¬Å"synergy nirvanaâ⬠(160). According to Klein, ââ¬Ësynergy nirvanaââ¬â¢ is attained when a conglomerate works internally to ââ¬Å"successfullyâ⬠¦churn out related versions of the same product, like molded Play-Doh, into different shapes: toys, books, theme parks, magazines, television specials, movies, candies, CDs, CD-ROMs, superstores, comics, and mega-musicalsâ⬠(161). Basically, ââ¬Ësynergy nirvanaââ¬â¢ is the proliferation of standardized products in different packaging, through a preexisting framework of cross-market advertising; which is done on a vast scale through the exploitation of many different mediums and industries in the name of profit. ââ¬ËSynergyââ¬â¢ is Viacomââ¬â¢s number one marketing tool for it allows them to link the vastness of their empire together, into a culmination, dissemination and consumption of products, images, ideals, and brands. Furthermore, ââ¬Ësynergyââ¬â¢ in programming, such as SpongeBob SquarePants and The Osbournes, has evident implications for the viewer-ship. SpongeBob SquarePants: The Future of Product Placement ââ¬Å"Nickelodeon has more children between the ages of two to eleven watching than the four major networks combinedâ⬠¦ This is significant in the competition for the childrenââ¬â¢s advertising market, which averages about $500 million a yearâ⬠(Roman, 223). SpongeBob SquarePants is a lovable, animated sea sponge that manages to find himself in undersea trouble during every episode. The ââ¬Å"cartoonâ⬠(Mittell, 18) runs every ââ¬Å"Saturday morningâ⬠(Mittell, 18) on Nickelodeon and is syndicated to most major television networks due to its incredible popularity among children viewers. What started out in 1999, as a comical concept for a childrenââ¬â¢s television program, has grown seemingly overnight into a ââ¬Ëjuggernautââ¬â¢. Nickelodeon cannot only boast that it is ââ¬Å"the number one rated program among children 2-11â⬠, but according to Nielson ratings, ââ¬Å"53. 7 million viewers tune into the show each monthâ⬠¦including 22. 1 million kids 2-11, [and] 12. 7 million between 9-14â⬠(Olson, blogcritics. rg). With such commercial success and an immense viewer ship, Nickelodeonââ¬â¢s SpongeBob SquarePants uses synergistic principals of massive product placement to have free rein and ââ¬Ëseep into every poreââ¬â¢ of consumer culture. SpongeBob employs Viacomââ¬â¢s cross platform synergies to network and gain access to most childrenââ¬â¢s homes. The motivation is a given when children between the ages of 2 ââ¬â 11 are not only watching between 24 ââ¬â 28 hours of television a week (Roman, 74), but are ââ¬Å"responsible for either spending or influencing the spending of $100 billion annuallyâ⬠(Roman, 74). This is clearly an influential and lucrative market. SpongeBob SquarePants should be the archetype for synergistic corporate product placement. With SpongeBobââ¬â¢s insurgence into popular culture, there have been similar synergistic trends of product placement. Support for this notion is found through looking back to 2004, days before the premier of the SpongeBob SquarePants movie in New York. Paramount, another Viacom subsidiary, launched a brand new SpongeBob SquarePants amusement park theme ride to coincide with the movie launch. Additionally, Burger King (also owned by Viacom), released a SpongeBob SquarePants value meal that comes with SpongeBob SquarePants plastic figurines from the movie ââ¬â ââ¬Ëcollect all 42. ââ¬â¢ Nickelodeon, the Viacom subsidiary that operates SpongeBob must not be ignored. Nickelodeon aired a 24-hour SpongeBob SquarePants Marathon that hyped up kids for the movie and forced unsuspecting parents to shell out $12 a ticket. Furthermore, during the Marathonââ¬â¢s commercial breaks, SpongeBob advised the viewers to eat SpongeBob value meals, collect all 67 figurines, and go to Paramount Theme Parks to try his new ride. SpongeBob has saturated the market with his yellow sponginess, which must be overpowering to any parent; he can be found everywhere, in every nuance of daily life. Since the movie, product placements and cross-promotional marketing have skyrocketed. SpongeBob now has a line of clothing, DVD box sets, bed linens, and bowling balls with a real tenpin set. Of course a 5 year old needs a bowling ball and set of bowling pins with SpongeBob SquarePants on them ââ¬â SpongeBob said so! MTV: Branding a Nation ââ¬Å"MTV is associated with the forces of freedom and democracy around the world. When the Berlin Wall came down, there were East German guards holding MTV umbrellasâ⬠ââ¬â Sumner Redstone, CEO of Viacom MTV is known for hosting different music video programs 24 hours a day, 7 days a week. In 1998, MTV was watched in ââ¬Å"273. 5 million household worldwideâ⬠(Klein, 120), where it was reported, ââ¬Å"85% of them watched everydayâ⬠(Klein, 120). The station offers a host television shows, including TRL and The Osbournes, that entrance its youthful audience through flashy music videos and the celebrities portrayed. MTVââ¬â¢s popularity, since its inception in the early 1980s, is as a self-perpetuating ââ¬Å"fully branded media integrationâ⬠(Klein, 44). Klein, 2000, writes: From the beginning, MTV has not been just a marketing machine for products it advertises around the clock; it has also been a twenty-four-hour advertisement for MTV itselfâ⬠¦[where] viewers didnââ¬â¢t watch individual shows, they simply watched MTVâ⬠¦Advertisers didnââ¬â¢t want to just advertise on MTV, they wanted to co-brand with the station (44). Today, advertiser branding can be seen throughout MTV. As MTV endeavors to diversify in a changing market place, video shows like TRL are coupled with reality-based television shows intimately linked to ââ¬Ëcelerityââ¬â¢ including The Anna Nichol Smith Show or The Osbournesââ¬â¢. Beyond these shows lack of merit, their entire function is product branding and celebrity endorsements. Even though The Osbournesââ¬â¢ are a revival to the ââ¬Å"original early 1950s format of the American sitcomâ⬠(Gillan, 55), I cannot fathom that product branding, product placement, and celebrity endorsements were as prevalent on national television in the 1950s as they are in modern programming. Within the first ten minutes of the show, the audience can blatantly see a mansion full of expensive electronics, furniture, and cars ââ¬â at a closer look, the brand names facing the camera and are a part of the Viacom conglomerate in a myriad of ways. All The Osbournes offer the predominately teen audience (other than a few less brain cells) is copious amounts of product branding though celebrity endorsement. Product branding on MTV is a big issue. Much like the red carpet on Oscar night, where the predominant question on everyoneââ¬â¢s lips is ââ¬Ëwho are you wearing? ââ¬â¢ MTV offers its audience the same intellectual stimulation, especially when all that its audience sees are ââ¬Ëhella-coolââ¬â¢ rock stars and all the ââ¬Ëblingââ¬â¢ they wear throughout their music videos, interviews, and award ceremonies. No wonder the Y generation is all about over consumption and bad taste. As we have entered the 21st Century, multi-media conglomerates have risen to great power in our society. They offer the consumer the media and entertainment that they desire. However through internal synergistic networks, these companies, such as Viacom, can link the lucrative childrenââ¬â¢s market or the 24-hour advertising nature of MTV, to all other aspects of their company. As consumers, we neglect what these companies are telling us to do ââ¬â to consume ââ¬â in order to watch our favourite programs. We refuse to witness how the realities of consumerism, and sickening nature that these corporations control the very artifacts and images that we relate to and enjoy for their own personal profit.
Tuesday, October 22, 2019
Free Essays on By Our Deaf Students Well Be Taught
Hearing people have a lot to offer to the deaf when it comes to language, such as the teaching of sign language, proper English, ways to communicate effectively, and much more. What they donââ¬â¢t realize is that deaf people can indeed return the favor. For instance, one could say that the majority of deaf people acquitted their knowledge of sign language from a hearing teacher. There are times where, after being taught, deaf people would give their teachers little cues that allow them to communicate with them more effectively. Helen E. Meador, in her article, tells of several encounters with deaf students. In one of her many experiences, she explains how she learned to sign what she means in order ensure that her students understood what she meant, not what she signed. In one of her classes, for example, she was reading them a book and upon completion, asked them to close their books and to her amazement, they didnââ¬â¢t. When inquiring why they didnââ¬â¢t do as told, one of her students told her that she didnââ¬â¢t say it like she meant it, since her eyebrows werenââ¬â¢t raised. This clearly showed that the deaf not only relied on signs to communicate, but also facial expression. After this incident she learned to use more facial expression to ensure that her students understood what she meant while she communicates with them. In another encounter, Meador learned to be creative with her signing. In one of her reading classes, after completing a short story, she asked the class their opinion of the story. One student replied, ââ¬Å"2-4-8â⬠. Puzzled, Meador asked the student what she meant and the student told her that it simply meant, ââ¬Å"very interestingâ⬠. That day, Meador learned to use sign language at a different level. One of the many things Meador learned from the deaf was language tolerance. In one situation a deaf student taught her the visual mode of communication. She tells of a teacher who experienced a communicat... Free Essays on By Our Deaf Students We'll Be Taught Free Essays on By Our Deaf Students We'll Be Taught Hearing people have a lot to offer to the deaf when it comes to language, such as the teaching of sign language, proper English, ways to communicate effectively, and much more. What they donââ¬â¢t realize is that deaf people can indeed return the favor. For instance, one could say that the majority of deaf people acquitted their knowledge of sign language from a hearing teacher. There are times where, after being taught, deaf people would give their teachers little cues that allow them to communicate with them more effectively. Helen E. Meador, in her article, tells of several encounters with deaf students. In one of her many experiences, she explains how she learned to sign what she means in order ensure that her students understood what she meant, not what she signed. In one of her classes, for example, she was reading them a book and upon completion, asked them to close their books and to her amazement, they didnââ¬â¢t. When inquiring why they didnââ¬â¢t do as told, one of her students told her that she didnââ¬â¢t say it like she meant it, since her eyebrows werenââ¬â¢t raised. This clearly showed that the deaf not only relied on signs to communicate, but also facial expression. After this incident she learned to use more facial expression to ensure that her students understood what she meant while she communicates with them. In another encounter, Meador learned to be creative with her signing. In one of her reading classes, after completing a short story, she asked the class their opinion of the story. One student replied, ââ¬Å"2-4-8â⬠. Puzzled, Meador asked the student what she meant and the student told her that it simply meant, ââ¬Å"very interestingâ⬠. That day, Meador learned to use sign language at a different level. One of the many things Meador learned from the deaf was language tolerance. In one situation a deaf student taught her the visual mode of communication. She tells of a teacher who experienced a communicat...
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