Selective Media Lab Report Example | Topics and Well Written Essays - 1000 words

Selective Media - Lab Report Example Selective media has a limited number of microorganisms it can support in growth because the particular component inhibits most other microorganisms by either limiting their growth or production of toxic substance that inhibit growth of non-selected microbes hence appropriate in the selection of target microorganisms during diagnosis. Diagnostic procedures utilising growth characteristics of enteric microorganisms is one of the cheapest and the easiest microbiological protocol that can be adopted in any low-income laboratory or a facility with high throughput diagnostic equipments. During the diagnosis of enteric medical conditions, use of growth media in the diagnosis of microorganisms gives reliable information that guides subsequent diagnostic studies that aims at targeting a particular pathogen. However, the growth of microorganisms is a characteristic of the media used in the assessment of growth. All media do not support the growth of all pathogens. In fact, only nutrient agar can support the growth of most microorganisms. Therefore, utilising a particular media that targets an individual pathogen is a crucial phenomenon in bacterial culture laboratory practices. Media are made selective for a particular microorganism by the incorporation of growth enhancement component that targets a particular pathogen as well as growth limiting component that inhibits the growth of unwanted organisms. Such media is referred to as selective media because it either enhances or inhibits the growth. Using selecting media makes it easy to discriminate most unwanted pathogens that arise from environmental contamination and likely to give false positive diagnosis. This report assessed the growth, morphology characteristics, differential colony features of the four selected microorganisms (E. coli, Salmonella tyhimum, Shigella flecked, and Staphylococcus spp) on five selected selective media (Phenylethyl alcohol – PEA; Hektoen enteric agar- HEK;

Health insurance should be free Essay Example | Topics and Well Written Essays - 1250 words

Health insurance should be free - Essay Example This essay aims at showing the various reasons, both social and economic, as to why health insurance should be made free. Although the move to provide free health insurance has some disadvantages the purpose of this essay is to show how the positive side of free health insurance compares with the negative side. One among the major problems facing health-care access around the world and especially North America (U.S. and Canada) is poor access to health services. Due to poor income distribution, the affordability of health care has deteriorated from 2001 to 2005 and further from 2008 towards the end of 2014 (Bureau of Labor Statistics, para. 2-4). Among the reasons limiting access to health care is poor income distribution. For the middle and high-class social classes, health care costs are manageable and provoke few to no major affordability issues. Health care affordability means the ability of an individual to meet his/her medical care costs through self-sponsorship or employer-paid insurance cover. In order to ensure that health care affordability is accessible to members of the public, it is in the best interest of the public to either access income generating opportunities to unify accessibility or to have health care made free to everyone. The latter case is much practical and medical cover is a basic need to every individual. Unlike with the case of luxury and overall cost of living, health care should be made free and accessible to all citizens such that low income-earners can have the same accessibility as high-income earners. Due to the problem of income distribution and unemployment, it is documented that some countries such as the U.S. have a high number of uninsured people. As of 2012, 46% of adults aged between 19 and 64 years did not have insurance cover for the whole year. Based on the population in 2012, 46% of the adult population

Paper on engineering failure with guidelines Essay

Paper on engineering failure with guidelines - Essay Example One of the most epic sea engineering failures was seen in the 1912 during the Titanic accident that saw many lives and property perish in helpless circumstances. In 1912, the world ever largest ship sunk deep into the ocean leading to over 1500 deaths due to poor safety designs by the engineers during its construction (Lisbon 36). The impact with the iceberg in the middle of the ocean. The expert expressed their concern that the engineer’s key failure was allowing aesthetic value to take the center of the construction while disregarding safety designs. Research has found that the engineers were the primary cause of the inability to have adequate security infrastructure. In fact, the initial design had included two rows of lifeboats under the deck; however, the designers removed one row in order to create ample space for passengers views. The nature of the error was largely technological and reverse priority. During the accident, the iceberg buckled the popped plates leading to gushing of water into the transverse bulkheads that were reduced to allow for spacious first-class rooms (Lisbon 67). Probably the ship would have withstood the iceberg had the original design been executed. The fundamental principle of the security had been catered for in the original design. Following a disaster, there were changes in policy to increase the heights of the double hulls transverse bulkheads that will reach the sides of ships in the future. The engineers most important lesson was the importance of enhancing security measures in ship designs as number one priority (Lisbon 125). Macdonald & Jones (2006) article on Sustainable Drainage System (SUDs) presents a case study at Glasgow introduces an engineering design of drainage systems in cities and urban centers. The authors use Glasgow as one of the cities in the world with a classical SUDs

To what extent should pupils become fully competent in the various Essay

To what extent should pupils become fully competent in the various aspects of science process skills before being introduced to ICT as a means of performing lab - Essay Example much exposure and competence the pupils must have on certain science principles before they are exposed to ICT as a means of performing labourious, repetitive or more complex tasks is a challenge for educators of today. The schools and all education stakeholders must however understand that the use of ICT tools are advantageous both to teachers and pupils. Results of several studies conducted throughout the world revealed that the use of ICT greatly increased the level of learning and understanding of the pupils on the scientific principles being studied (Betts, 2003, Mistler-Jackson & Songer, 2000, Hogarth et. al, 2006). In fact the ICT tools can even be use to demonstrate science principles in a safer way. For instance, teaching electricity principles to pupils can be both interesting and dangerous. But the advent of computer hardwares and softwares has made it more motivating and rewarding minus the hazards. Primary knowledge and skills about how electrical circuits work, how much power is required for certain types of lights, and others can be learned through simulation and not in actual exposure to real electrical circuits. To determine if ICT is really needed for primary science education and understand when is the proper timing of its introduction into the learning process it is proper to understand first what ICT applications are necessary and how can they be integrated into the learning systems? What are the advantages and disadvantages of its applications? The use of ICT in teaching science for primary education came in various forms. Review of schools’ science teaching modules show the use of ICT hardwares and softwares to obtain and use science information, encoding of data, and creating presentations. Science information materials can be obtained from CD-ROM based encyclopedia and other e-books, journals, and articles, through a wide variety of Internet locations, and through local and international electronic library networks. There are a lot

Political Environment Case Study Analysis Essay Example | Topics and Well Written Essays - 500 words

Political Environment Case Study Analysis - Essay Example Most likely, higher education organizations such as the NEA (National Education Association) will support the reduction. The different student organizations from state colleges and universities will possibly join as well. Individuals from working-class families or those who are supporting themselves while studying can also form a large number when they unify their support. Apart from higher education, the supporters of mental health programs are also getting worried; they say that neglecting mental health programs in favor of improving correctional facilities will just cause increase in inmate population in the long run. Among the possible supporters are NMHA (National Mental Health Association), AMHA (American Mental Health Association), NASMHPD (National Association of State Mental Health Program Directors). There are also other organizations who believe that more of the budget must be allotted to infrastructure, social centers, daycare centers, hospitals, etc. These are the infras tructure organizations such as the American Hospital Association. Political advocacy groups are also potential supporters.

Marketing assignment Example | Topics and Well Written Essays - 250 words

Marketing - Assignment Example This maintains consistency and keeps the message straightforward to all customers. Furthermore, the integration also allows for Best Buy to communicate to all purchasing markets, no matter how large or small. This helps position Best Buy as a household name, not to be viewed as a corporate monster. This shows people that Best Buy provides products to all people and its products and prices do not discriminate, which is a beneficial component to implementing a successful integrated multi-channel marketing campaign. We promote differently because our organization uses social networking much more effectively and primarily than Best Buy would. Best Buy uses the internet for mostly on-site advertising; however, our organization concentrates on using social media to allow purchasers to share the word about our products and specials. This is helpful especially considering that anyone who uses our social networking channels will be able to receive special coupons and discounts that can only be received through mobile or social media

Groundwater pumping Essay Example | Topics and Well Written Essays - 250 words

Groundwater pumping - Essay Example The signing of three bills regulating groundwater pumping in California will promote the management of groundwater since they adopt a fee-based structure and impose groundwater-pumping restrictions (Nijhuis, 2014). The fee-based approach defines pumping fees and restricts pumping. We can manage groundwater pumping for future uses by adopting fee-based measures that entail levying fees for groundwater pumping. The approach will enhance efficiency in consumption by mandating water users to pay for water on a full-cost recovery basis. Moreover, we can use tiered charges and water markets to enhance flexible and efficient consumption among large water users. Apparently, the fee-based measure will promote efficient water use in most areas facing excessive groundwater depletion thus enhancing sustainable groundwater pumping (Nelson, 2012). Additionally, an increase in irrigation costs and prices in areas relying on groundwater pumping enhances sustainability and resiliency. Indeed, this will motivate farmers to adopt water management mechanisms (Wichelns, 2010). As such, this fee-based measure will promote management and improvement of groundwater pumping in the agricultural sector thus conserving groundwater for future use. Water agencies can also relate water prices to the changes in groundwater levels, which will allow them to charge higher water prices during drought thus promoting efficient use (Wichelns, 2010). Water agencies can sue the fee-based measure to charge high water prices to new investments relying on groundwater, which would discourage increased dependence on groundwater pumping. These measures can help in managing groundwater pumping for the future, for purposes of sustainability and resiliency. Blanco, H. (2012). Water Supply Scarcity in Southern California: Assessing Water District Level Strategies. Retrieved from http://sustainablecities.usc.edu/quicklinks/H%20Blanco%20WSSC%20Exec%20Summary%2012%202012.pdf Nijhuis, M. (2014). Amid