Wireless Networks Communication Research Paper Example | Topics and Well Written Essays - 1500 words

Wireless Networks Communication - Research Paper Example In the recent past, last decade, wireless technology implementations have shifted the focus from the relatively small early adopters to a much larger group of organizations that use the technology to expand and comprehensively cover the networking capabilities and enhance their solicitation to their clientele. Majority of the existing organizations, commercial and non commercial, have in the very least installed wireless networks in their organizations. This comes in the form of simple open wireless technology with a wireless enabled switch, router etc. in a single room to rolling out large campus areas and few metropolitan area networks. Granted the continuing forecasts and advances for wireless technology applications, the era for implementing this technology in an organization is at hand. In order to have a successful wireless network implementation, different functional departments and divisions of a company must come together and support the effort. The already established playe rs, companies with the technology, have IT departments that have planned and designed the process as it would be expected. Beyond the IT personnel, which is by far a critical group, various other participants – customers, management, administrators, finance – are involved directly, with the stakeholders initiating the planning process (Sayre,2008). Whereas the practical requirements of the IT personnel largely influences the decisions in wireless technology implementation, organizations need make sure that the needs of other departments are also considered. The different factors cited as crucial in the decision to roll out wireless infrastructure must reflect the concerns and reservations of different departments and stakeholders in the business process (Rackley, 2008). The factors include, improved and more efficient network access, support for omnipresent network access, easier mobility for IT department and return on investment to the management of the company. Not all organizations may be able to address all stakeholders’ needs, but it is clear that having all stakeholders in the process is aesthetic. It is aesthetic in the sense that the technology will be well received by all users but only a few make the crucial decisions. The quality implementation standards of wireless technology are still developing. Dedicating all resources to a single approach in the early stages of planning for the network implementation can set the stage for untimely obsolescence. Determining the standards prior to moving to the technological implementation has to be moderated in the case of WLANS to allow for almost continued refinements. Currently, the largest share of (WLAN) organizations currently use the 902.11b standard for their networks; over half of those planning to go with the new networks are considering 802.11a. A small percentage of the upcoming are planning to implement Bluetooth, (PAN) Personal Area Network solutions. PCs are by tradition, on the heart of wireless enabled networks today. Considering this fact, it is also worth noting that the notebook PC is the device that is most commonly used in a wireless network connection. A large number of wireless networks, slightly over half, also support desktop workstations. Thinking beyond the PC is crucial in this day and age of wireless infrastructure. Personal digital assistants (PDAs), iPhones, and Wi-Fi enabled phones are most likely to be included in the mix since they support the wireless networks. Cell phones and PDAs aforementioned are far more mobile and portable than the traditional notebook computers. Clearly, WLANs have become far more cosmopolitan in the present technology. Considering thi

DDT and malaria Essay Example | Topics and Well Written Essays - 1750 words

DDT and malaria - Essay Example The disease is common in subtropical and tropical regions including a lot of Americas, Asia, and the Sub-Saharan Africa. Malaria is very common in these regions since they have reliable hot temperatures and large amounts of rainfall. Since mosquitos live in a warm environment with consistent temperatures, they breed continuously in the aforementioned areas. Significance of Malaria Malaria is one of the major contagious diseases in tropical environments and a huge public health disaster. It has been ranked the leading cause of death in the world where almost five million new cases are identified, with deaths of two point seven million annually according to Glaser and Knight (2007). Historically, malaria has infected humans since the creation of mankind. Malaria has not spared is victims despite of their status and position, the American President John Adams for example nearly succumbed to malaria while on a diplomatic mission in Amsterdam. It was until the nineteenth century that fact s about the real cause of malaria became known. So far despite this knowledge, malaria continues to grossly affect the populations of south East Asia, sub-Saharan, and Latin America its victims manly comprising pregnant women and young children (McConnell, 2006). Malaria causing mosquitoes are known to breed in swamy areas or areas that have stagnant waters where they lay their eggs. The Plasmodium parasite apart from infecting humans, also affects reptiles, birds, rodents, chimpanzees and monkeys. Plasmodium enters the bloodstream and damages the red blood cells as well as affecting the spleen, kidney, liver, and other vital body organs. Malaria has other names like falcipurum malaria, quartan malaria, black water fever, plasmodium, and tertian malaria. Thus malaria parasites are transmitted by female anopheles mosquitoes (Capinera, 2008). Information on the economic workload of malaria is needed to focus interventions equitably and efficiently, and to establish investment in contr ol and research of how to combat the disease. Treatment of malaria is costly its asociated expenses a burden to the victims. Many institutions use weak data to estimate indirect costs, which fail to account for seasonal variations, the difference between the marginal and average product of labour, and the means firms and households survive in response to the illness period. Impact of DDT There are several measures used in combating malaria including use of insecticides, mosquito nets and medication that fight the disease. One product that has been used for a long to in fighting malaria is DDT (Dichlorodiphenyltrichloroethane). DDT is a synthetic pesticide invented in 1874. DDT opens sodium ion paths in the neurons of insects enabling them to fire suddenly which results to eventual deaths spasms. However, in humans it affects the health through endocrine disruption or genotoxicity. Genotoxic substances are recognized to be potentially carcinogenic or mutagenic, particularly those cap able of causing genetic mutation and of contributing to the growth of swellings as noted by Miller and Spoolman (2008). DDT may be directly genotoxic, although it may also make enzymes generate other genotoxic intermediates. It is also an endocrine disruptor in that it act as an ant androgen. According to Roberts and Tren (2010), the remains of DDT on the walls of the houses can change the transmission mode of mosquitoes. The non contact repellant action of DDT remains can stop a malaria mosquito from entering the house. In