The Effectiveness of Common Acne Products against P. acnes Bacteria Kathryn Henshaw Taunton High School Honors Chemistry I Mr. Osowick January 23‚ 2013 Table of Contents Abstract3 Background Research4-9 What is Acne Vulgaris? 4 How does Acne Vulgaris Form?6 How is Acne Vulgaris Treated?8 Purpose10 Hypothesis10 Materials10 Procedure11-14 Data15-16 Results17 Conclusion18-19 Figures20-22 References23-24 Abstract Acne is one of the most common pests to human beings. Although
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EXPERIMENT: Pressure drop over a bubble cap plate. AIM : This experiment is conducted in an experimental test ring in which the effect of the variation in vapor and liquid flow rates on the pressure drop across bubble cap plates is simulated using air and water to represent the vapor and liquid respectively. THEORY: In a pilot tube the relation between the gas velocity and pressure drop is Where‚ is the differential pressure as expressed in the head of the fluid flowing. Where‚ ’=level
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QUEENSLAND ACADEMIES FOR SCIENCE‚ MATHEMATICS AND TECHNOLOGY International Baccalaureate Diploma Program Extended Essay in Biology Is Tea-tree Oil effective in controlling and minimising the growth of the Escherichia coli Bacteria? A study of the effectiveness of a Natural Antiseptic Candidate Name: Lois Adrienne Dianne Soriano Dulay Candidate Session Number: 003072-032 Word Count: 3997 Supervisor: Ms Kate Barry Date of Submission: 25th July 2011 Acknowledgments Firstly I would
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In order to survive and grow in a tough and competitive marketplace‚ a retailer must differentiate itself from its competitors. How does Argos differentiate itself from its competitors? What is (are) its competitive advantage(s) that attract(s) its customers? Argos has succeeded in differentiating itself from its competitors in a number of ways. Firstly‚ convenience of shopping because of the available catalogues to browse before visiting the store which are available as hard copies‚ in store or
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Nowadays‚ the plate wastes create a serious problem in social and environmental in the United State (Sobal and Nelson‚ 2003). In this study‚ plate waste can be defined as the amount of edible food served to consumer which is the measurement of food loss‚ eating habits that are uneaten. Kantor et al.‚ (1997) showed that the plate waste is the reason for food leftover at the consumer especially in foodservice level and we are wasting half of the food we produced. One important challenge is to study
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ups Identifying food groups in unknown solutions Aim The aim of this experiment is to identify different food groups within several different unknown solutions. This will be carried out by placing the unknown solutions into separate test tubes and using different chemical indicators to see if any reactions occur. Each food group will act different when the chemical indicator is added‚ some will change colour while others will separate. Introduction Food is a vital source of energy that is
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on why bacterium evolves. Bacteria are single celled (eukaryotic) organisms. Bacteria is present in almost every environment‚ including the human body. They can absorb nutrients from various ways‚ some bacteria are photosynthetic meaning they absorb their nutrition from sunlight through a process known as photosynthesis‚ while other bacteria absorbs nutrients from the organism they live on or in. There is good bacteria and more dangerous “bad” bacteria. Bad bacteria can be dangerous to other species
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French Fries vs Bacteria Introduction After the Chipotle scandal of having E. Coli‚ I wondered what other bacteria can possibly be on foods that we consume. In addition‚ eating my french fries the day after I bought it‚ I wondered how long it could be until there was bacteria growing on the french fries. These two experiences in the last few months triggered me to become interested in what bacteria is and how harmful it can be. In order to do this investigation‚ one must study various types of french
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Antibiotic Resistant Bacteria in Hospitals. Introduction Antibiotic resistant bacteria are bacteria who can survive after exposure to one or more antibiotics. Some bacteria present today can even be resistant to multiple antibiotics and these are sometimes referred to by the name Multidrug resistant (MDR). Today many clinically important bacteria are MDR’s and this is a direct result of past decades of antimicrobial use and misuse. If an infection results from this sort of resistant bacteria a stronger antibiotic
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Alfred Wegener(1880-1930) was the first man to propose the theory gplate tectonics.h He had got a Ph.D in astronomy from the University of Berlin‚ but he was also interested in the other science field such as geophysics‚ meteorology‚ and climatology. He also contributed to meteorology by establishing to track air circulation using balloon. In 1911‚ he read a paper that listed identical fossils of plants and animals found on opposite side of the Atlantic‚ and he looked for more of such organisms
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