Keanna Barnes Abstract Current studies on oncolytic viruses have been underway to ultimately reduce the casualties cancer brings upon citizens globally. Lately‚ a series of clinical studies have shown clinical response when vaccines are combined with other forms of treatment in patients with all sorts of different cancers. Although scientists may be tempted to combine an oncolytic virus with an already existing radiation or chemotherapeutic‚ the long term goals have to be realistic and rational
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Protists and Viruses A flagellum is a whiplike tail that helps organisms living in moist places to move The characteristics of protists is they are euckaryotic organisms‚ they are one or many-celled but do not have the complex organization found in plants and animals‚ and some make there own food and other can’t. Protists are plantlike‚ animallike and funguslike. A virus is a microscopic particles that make up either DNA or RNA core covered by a protein coat. Viruses are so small an electrn microscope
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Designed to relentlessly replicate‚ computer viruses infect your programs and files‚ alter the way your computer operates or stop it from working altogether. It’s estimated that the Conficker virus infected more than 10 million computers in 2009. Tens of thousands of computer viruses now operate over the Internet‚ and new computer viruses are discovered every day. How does a computer virus find me? Even if you’re careful you can pick up computer viruses through normal Web activities like: Sharing
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2013 Why Tobacco Is Bad Cigarettes‚ cigars‚ and pipe tobacco are made from dried tobacco leaves‚ as well as ingredients added for flavor and to make smoking more pleasant. The smoke from these products is a complex mixture of chemicals produced by the burning of tobacco and its additives. The smoke is made up of more than 7‚000 chemicals‚ including over 60 known to cause cancer (carcinogens). Some of these substances cause heart and lung diseases too‚ and all of them can be deadly. Tobacco smoke also
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distribution‚ and reproduction The health effects of smoking are the circumstances‚ mechanisms‚ and factors of tobacco consumption on human health. Epidemiological research has been focused primarily on cigarette tobacco smoking‚[1] which has been studied more extensively than any other form of consumption.[2] Tobacco is the single greatest cause of preventable death globally.[3] Tobacco use leads most commonly to diseases affecting the heart‚ liver and lungs‚ with smoking being a major risk factor
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Tobacco -a preparation of the nicotine-rich leaves of an American plant‚ which are cured by a process of drying and fermentation for smoking or chewing. Shorts of smoking cigarettes: Irritation and inflammation of the stomach and intestines Increased risk of painful ulcers along the digestive tract Reduced ability to smell and taste Premature wrinkling of the skin Higher risk of blindness Gum disease (periodontitis) Long effects of smoking cigarettes : 1. Smelling like smoke There’s no mistaking
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Chewing Gutkha Gutkha can well be defined as a devil in disguise. Promoted as a mouth freshener‚ this betel nuts and tobacco preparation is designed to release a chemical reaction that makes it an addictive proposition. However‚ most consumers believe that the blended spices and seasonings do not make it as a harmful product! But‚ the truth remains that gutkha; just as any other tobacco product is very addictive and injurious to health. Gutkha has been proved to be carcinogenic‚ The Effects if Gutkha
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The concept of viruses being living or non-living has been greatly debated throughout the scientific community‚ essentially because of varying differences in scientist’s definitions of what constitutes life. Furthermore‚ scientists also disagree on the degree to which viruses fit into the living or non-living category. There are seven fundamental components which can be used to define life. The first being that living things must maintain homeostasis; the ability for it to control its internal temperature
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Viruses‚ Viroids‚ and Prions copyright cmassengale 1 Are Viruses Living or Non-living? Viruses are both and neither They have some properties of life but not others For example‚ viruses can be killed‚ even crystallized like table salt However‚ they can’t maintain a constant internal state (homeostasis). copyright cmassengale 2 What are Viruses? A virus is a noncellular particle made up of genetic material and protein that can invade living cells. copyright cmassengale 3 Viral History copyright
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Change over the course of generations 2 Viruses Over 4‚000 different types of viruses Virus have their own genomes‚ but are considered nonliving Must be taken up by a living cell to replicate 3 4 Viral genetics Tobacco Mosaic Virus (TMV) first virus discovered in 1883 Yellow fever: first human virus discovered 1900 5 Differences Host range Number of species and cell types that can be infected Structural All viruses have a capsid (protein coat) but it varies in
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