Environmental scan Essay Example | Topics and Well Written Essays - 1000 words

Environmental scan - Essay Example However, the management should be aware of some of the shortcomings of semantic technique: it is limited in its data content, it can not be used for navigating the website and it is complicated for beginners. Currently, many people make use of search engines to retrieve and search for data on the internet. There are over fifty search engines that are available to the user worldwide. Some of the search engines are regional while others are universal. For example, Google, Yahoo Search and MSN are some of the global search engines. These search engines came to the market at the start of the last decade of the twentieth century. Following are some of the search engines that are currently in use: It is an immense search engine (Takakuwa, 2004: 23). It is claimed to be one of the biggest search engines that is currently available to web browsers. Levene (2006: 123) is of the view that Google uses the PageRank system to display the information that the user is searching for. This type of page ranking is named after one of the pioneers, Larry Page. This technology gives the user the pages that closely resemble what he is looking for (Takakuwa, 2004: 100). The page with the highest similarity is ranked at the top. This search engine is effective as far as giving the user a multitude of hits that closely resemble what he is searching for. It can be used to search for books, blogs, images, patents amongst others (Takakuwa, 2004: 100). It also links the user to other sites that are relevant. Though not as big as Google, it has an excess of twenty billion â€Å"web objects† (Thurow, 2007: 23). It gives the user shortcuts to the relevant site that he is looking for (Thurow, 2007: 23). The results are ranked using the Automatic AND technique. Apart from the two above, there are many other services such as Exalead, MSN and a host of others. The current search engines have some efficacies based on their size of database, search

Earth Science and Society Essay Example | Topics and Well Written Essays - 500 words

Earth Science and Society - Essay Example From this study it is clear that  geography has been based on physics and astronomy and has focused on both physical and human nature. The other scientific disciples mostly study living things in general. A good definition will entail the study of both non-living and living things on earth and also in space. The strength associated with geography is the ability of connecting all functioning interrelationship which are not usually noticed in simple defined schools of thought. The weakness with geography is that in most cases important facts on causes and effects are usually missed because of holistic understanding. The mentioned strength has made it possible to come up with theories which can be proved to be true, but the weakness has led to generalization of theories which are not necessarily true.According to the report  weather entails the events that happen on a daily basis in the atmosphere such as temperature, humidity and rainfall, and it varies from one environment to the other. Climate basically is the weather pattern of a particular wide area averaged over so many years. A town can experience the day’s weather to be wet, cold and rainy. The climate pattern of Antarctica is always rainy and stormy.  Greenhouse effect is the process by which the atmospheric airs consisting of water vapor, methane, nitrous oxide and carbon dioxide trap the heat from the sun and radiate it back to the surface of the earth.