The author purpose to write this story is to explain why he wrote The Crucible‚ what pushes him to write such a story. Arthur Miller tried to make life real by showing that things get repeated in history. The McCarthy trials are similar to Salem Witch trials. People were being accused for things that they never did and do not have any proof that they did these thing. The Crucible shows that whatever is happening now happened before‚ and we are repeating the history. It is important for people to
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Microbiology Coursework: Bacillus cereus After investigation following on outbreak of food poisoning at a pizza restaurant‚ it was found that all suffers had consumed a portion of side salad from the self-service salad bar alongside their main dish. Subsequently‚ this was further traced to a rice salad. Environmental Health Officers investigating this outbreak suspected it may have been caused by Bacillus cereus (B. cereus). The presence of large numbers of B. cereus in a food is indicative
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sperm and the ova from the wife or surrogate mother is used for fertilization. The resulting embryos are then implanted in the woman’s or surrogate mother’s womb. The techniques today have in-vitro fertilization being used to achieve pregnancy in a petri dish. Since the birth of the first test tube baby in 1978 there have been demands for promulgation of laws to solve the disputes which were likely to crop up as derivatives of modern
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yellow color in acidic ones. Control Variables: * The same agar will be used for each experiment * All the experiments will be investigated in the same place * Volume and concentration of the Hydrogen Peroxide. Apparatus: * 1 Petri-dish of agar * Knife * Test tubes * Beakers * 100 cm3 of HCl * Stopwatch * Lab coat * Ruler Method: * Cut the agar into different sizes of blocks with a knife and measure the size with the help of a ruler to make an
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through the body. The Jarvik devices were implanted to sustain patients waiting for transplants. 2) Penicillin Penicillin was discovered accidentally by Sir Alexander Fleming in 1928 at St. Mary’s hospital in London when he forgot to clean a Petri dish before leaving on vacation. Fleming’s experimentation with the left-behind mold led him to discover its dissolving effects on the Staphylococcus aureus bacterium. Through further trials he discovered that a pure culture of the mold effectively killed
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Infertility‚ I.V.F. and other Assisted Reproductive Technologies A look into the main reasons for infertility‚ how procedures evolving from recent scientific breakthroughs can combat this problem and an insight into the ethics surrounding this issue of ARTs. Since the live birth of Louise Joy Brown (the first successful ’test-tube’ baby) in 1978; we have heard massive praise‚ accompanied by huge controversy about the use of In-Vitro Fertilization (IVF) and other methods of technology-assisted
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Project Title: Examination of bacterial content of sea water samples from selected sites in South East England Introduction Over the past few years coastal beaches across the UK has seen lavished with recognition for their cleanliness‚ by sections of the media and various organisarions. Majority of these beaches have been awarded the Blue flag award in recognition for meeting set criteria on various standard including cleanliness‚ water quality‚ environmental management and environmental education
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Practical Research & Report Assessment. Allelopathy and interference and the effect they have on plant growth. Allelopathy occurs in plants. Many plants produce chemicals that may be harmful or beneficial to other plants. In some cases a species can produce chemicals that can prevent the growth or germination of another species. An example of this is Australian native plants such as Casuarinas and Eucalypts which produce allelochemicals that prevent competition of other plants. This is a form of
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THE EFFECTS OF LIGHT AND GIBBERELLIN ON LACTUCA SATIVA L. GERMINATION Introduction The time that a seed germinates‚ and whether or not it actually does germinate‚ depends on many factors. These factors include; the chemical environment‚ which must be the right conditions; oxygen must be present‚ and inhibitory chemicals must not be present. Germination also depends on the physical environment. Temperatures must be suited to the seed‚ and light quality and quantity must also be suited to the needs
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To investigate the effect of variation in temperature on the permeability of cell membranes using fresh beetroot Aims In this investigation‚ you will subject fresh‚ washed beetroot discs to different temperatures to investigate the effect of temperature on the permeability of the plasma membrane. Overview The beetroot discs will be placed in distilled water at different temperatures. You will compare the intensity of the beetroot pigment that has leaked out from the cells subjectively and possibly
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