dangerous. The breakdown in health services‚ the spread of HIV/AIDS and the emergence of multi drug-resistant TB are contributing to the worsening impact of this disease. Overall‚ one-third of the world’s population is currently infected with the TB bacillus. How TB Spreads: TB is a contagious disease. Like the common cold‚ it spreads through the air. A person acquires a tuberculosis infection by inhaling tiny droplets of moisture contaminated with the Mycobacterium Tuberculosis bacteria. The source
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Microbiology Lab Quiz #2 Study Guide Exercise 9 -- The Gram Stain Compare and contrast simple and differential staining techniques. Simple Staining Simple staining is useful in determining the basic morphology of an organism. Simple staining involves only one reagent i.e. crystal violet‚ basic fuchsin‚ or methylene blue. Simple dyes used to stain bacteria have a positive charge cationic (+)‚ therefore‚ they are attracted to the bacteria that are usually negatively charged anionic (-) Depends
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A Semi-Detailed Lesson Plan in BIOLOGY Date: January 22‚ 2013 Time: 7:30-8:30 Section: BSEd-2B I. Objective(s) At the end of the 60-minute period‚ at least 75% of the student’s should be able to: 1. Differentiate prokaryotic from eukaryotic cells. II. Subject Matter a. Topic: Prokaryotes and Eukaryotes b. References: b.1. Department of Education. 2002. Operations Handbook in Biology: 2002 Basic Education Curriculum Secondary Level. II. 1. 1.4. b.2. Department of Education
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The plague could spread rapidly and hugely due to the trading route across the large‚ treeless steppe as Mongol Empire spanned almost the entire Eurasian continent. The "steppe ecosystem was susceptible to the plague bacillus (Marks‚ 37)" as Mongol riders heading west spread the plague to the rodents on the steppe‚ resulting transmitting it across the whole Eurasia at the end. It is true that the consequence of Black Death was lifeless and awful enough to largely reduce
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BIOLOGICAL HAZARDS Biological hazard are acquired from disease causing microorganism and the poisonous toxins they may produce. Biological hazard are far the most dangerous foodborne hazard in the food service and food retail businesses. These includes harmful microorganism seen only in the microscope 1. BACTERIA 2.VIRUSES 3. PARASITES 4. MOLDS 5. YEAST Other living organism are: • Insects: RODENTS FARM ANIMAL DOMESTIC PETS BIRDS FISH PLANTS TRANSMIT DISEASE TO HUMAN BEING
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The Plague was a Magnificent tragedy that the people couldn’t do anything about. “The Plague is a contagious bacterial disease characterized by fever and delirium‚ typically with the formation of buboes and sometimes infection of the lungs.”(-------) The main ideas about the plague in the paper is the causes‚ having the plague‚ and the biggest is the toll it brought in society. There are many causes of the plague. One is all of the bacteria from the plague. “The plague is caused by a bacterium
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human (Radostitis et al. 2002). It is characterized by the formation of granulomas in tissues and organs‚ more significantly in the lungs‚ lymph nodes‚ intestines‚ liver and kidneys (Shitaye et al.‚ 2007). Bovine TB is caused by a slowly growing bacillus which is a member of the Mycobacterium tuberculosis complex. Bovine TB is a great threat to both animal and human health in many countries and human tuberculosis of animal origin particularly that caused by Mycobacterium bovis‚ is becoming increasingly
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Clostridium Perfringens Clostridium perfringens (formerly known as C. welchii‚ or Bacillus welchii) is a Gram-positive‚ rod- shaped‚ anaerobic‚ spore-forming bacterium of the genus Clostridium. C. perfringens is ever present in nature and can be found as a normal component of decaying vegetation‚ marine sediment‚ the intestinal tract of humans and other vertebrates‚ insects‚ and soil. Infections due to C. perfringens show evidence of tissue necrosis‚ bacteremia‚ emphysematous cholecystitis
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Available online at www.sciencedirect.com Polyhydroxyalkanoates: bioplastics with a green agenda Tajalli Keshavarz and Ipsita Roy Production of polyhydroxyalkanoates (PHAs) has been investigated for more than eighty years but recently a number of factors including increase in the price of crude oil and public awareness of the environmental issues have become a notable driving force for extended research on biopolymers. The versatility of PHAs has made them good candidates for the study
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2.0 Plastic Waste Management Disposal of plastic waste is a serious concern in India. New technologies have been developed to minimize there adverse effect on the environment. Currently world wide accepted technology used for the plastic disposal is incineration. However‚ the incinerators designed poorly‚ releases extremely toxic compounds (chlorinated dioxins and furans) therefore‚ facing strong opposition from various non-government organizations. In India to introduce a safer disposal technology
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