Cell culture provides model systems being used for the study of the physiology and basic biochemistry of cells such as aging and cellular metabolism, for the study of effects of new drugs on cells, and to study mutagenesis as well as carcinogenesis. Animal cell culture technique can be used to study the differences between normal and cancer cells, to replace damaged tissue or organs, and to introduce new DNA or RNA into the cell in order to study the expression of the new gene. This technique can also
From 1966 to 1986, more than a dozen cases of childhood leukemia hit the small town of Woburn, Massachusetts. In the late 1970s, civil engineers discovered that local wells G and H were contaminated with several suspected carcinogens, including trichloroethylene (TCE). The wells were subsequently shut down. The town had a long history of industrial activity, including a number of tanneries. Two major corporations, W.R. Grace Co. and Beatrice Foods, owned factories and plants in the area. A group
Disadvantages: The most common disadvantages of DNA Fingerprinting are as follows: High chances of Contamination of samples during collection, transportation, storage and during DNA Fingerprinting. Poor maintenance of temperature and environmental conditions of the samples collected. Improper sealing and labeling of the paper bags or other packing materials, which may lead to the contamination or unsuitable environmental
management is major environmental problem in Addis Ababa. Waste is disposed off through informal means, except smaller percentage going to incineration, dumped on open sites, drainage channels, rivers and valleys as well as on the streets. The rivers that cross the city are widely used as disposal sites. The rapid population growth rate is also resulting in a rise urban waste generation. This implies that the current waste collection and disposal capacity of the city could not match with the growing population
stiff neck, confusion, weakness, septicaemia and meningitis. Up to 25% of Listeria cases are pregnancy related. When a pregnant woman is contaminated with the listeria bacteria it is flu like illness which can lead to infection of the foetus. Listeria also puts older people, people with weakened immune systems and people with certain diseases such as HIV or cancer at greater risk. It is found that only 10% of cases occur in previously healthy people. Listeria is widespread in the environment it has
CHAPTER ONE INTRODUCTION 1.1 Background Water pollution is an immense set of unwanted effects upon water bodies such as lakes, rivers, oceans and groundwater that caused by human activities. This matter requires urgent attention, since water is scarce. This important resource needs detailed scientific research all over the world in order to sustain and keep the water resource from pollution and for its wise utilization. However, no water in nature is
Forensic scientists help analyse evidence left at a crime scene. They can help as they have special techniques to study small or extremely damaged evidence. Sometimes, paint samples need to be anaylsed. Forensic paint analyses and comparisons are typically distinguished by sample size that precludes the application of many standard industrial paint analysis protocols. A forensic paint examiner's goal is to assess the significance of any observed differences. The absence of significant differences
The customer value proposition is arguably the most important tool in the product marketer’s toolset. It is the foundation for understanding how the product will realistically be valued by the target user. It certainly includes the advantages a target user would experience and the unique comparison between Cadbury and Galaxy chocolates as a competitor Galaxy is a Milk chocolate, made and marketed by Mars incorporated. Products have similarities such as: • Varieties of choices based on chocolates
In the case of Caylee Anthony is a tragic story of how a two year-old girl who went missing June 2008. In December 2008 her body was found in a swampy wooded area just a short distance from her home. That was not where she was killed. Her body was dumped at that location. (Press, 2011) Entomological evidence would prove to be a bit of importance with her autopsy. “Entomological evidence is the study of insect activity associated with a dead body.” The insects could tell a lab technician a lot about
and other water related diseases. The annual occurrence of GI illness was 0.76 among tap water drinkers compared with 0.50 among filtered drinkers. Study exhibits that the adequate of recent standards of drinking water quality to prevent water-borne endemic diseases such as gastrointestinal