What is Tuberculosis‚ and how serious is this problem? TB‚ or Tuberculosis‚ is a chronic or acute contagious disease caused by a bacterial infection. TB is the leading cause of death from a single infectious disease‚ accounting for over a quarter of avoidable deaths among adults. It can affect several organs of the human body‚ including the brain‚ the kidneys and the bones‚ but it predominately manifests itself in the lungs where it is called "Pulmonary Tuberculosis". According to the WHO‚
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product. This reaction may also be called an esterification‚ since the product of the reaction is an ester‚ a compound containing the CO2 R group (see chapter 11 for definitions of acids‚ esters‚ and alcohols). Esters usually have pleasant‚ fruit-like odors and are the chemicals responsible for the odors and flavors of many fruits (oranges‚ bananas‚ pineapples) and flowers. In most cases‚ such natural products get their properties from a mixture of organic compounds. In this experiment you will prepare
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have filled my tea…’ to page 291‚ line 745 ‘GWENDOLEN: You will call me sister‚ will you not?’ How does Wilde create comedy in this scene? The Importance of Being Earnest is considered by many to be a comedy of manners‚ focusing on the love lives of aristocratic young people‚ and relying on the use of verbal wit‚ stock characters and humour over developing a deep plot and sense of character. In this scene‚ Gwendolen and Cecily have just gotten into a fight over their alleged fiancés mistaken identity
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Cell Structure I. Cell History A. Anton Leewenhock (1600s) - first person to observe cells - in pond water‚ using a homemade microscope B. Robert Hooke (1665) - observed many kinds of animal tissue under a microscope - concludes that all animals are made up of cells C. Schwann (1868) - observed many kinds of animal tissue - concludes that all animals are made up of cells D. Schleiden (1869) - observed many kinds of plant tissue - concludes that all plants are made up of cells E. Cell
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not maintaining your home. You notice the divide between you and your husband as a result of your biological sexes‚ but society exploits your diversity so that a corrupt function will ensue. At a time like this‚ you cannot help but wonder what you are going to do‚ since the “American Dream” doesn’t suit your needs. All of
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EXPERIMENT NO-1 AIM- To determine the frequency of A. C. mains by using an electric vibrator. APPARATUS- Electric vibrator‚ table lamp‚ pulley‚ weight box‚ fishing cord‚ a. c. source. THEORY- when a cord of mass per unit length m is connected to the vibrating rod of the vibrator and stretched with a tension T‚ the cord vibrators in segments. If the length of the cord is then adjusted until the nodes are clearly marked‚ the frequency of the stretched string is the same as of the vibrating rod which
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Chapters 6‚7 &31 Question 1 1 out of 1 points Some enzymes contain molecules in the active site that help facilitate chemical transformations. These molecules are called: Selected Answer: coenzymes. Correct Answer: coenzymes. Question 2 1 out of 1 points People with high cholesterol levels often take drugs in an attempt to lower their cholesterol levels. One such drug is Lipitor. How does this drug work? Selected Answer: It acts as a competitive
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The cells of the adaptive immune system are special types of leukocytes‚ called lymphocytes. There are two main types of lymphocytes‚ B cells and T cells‚ which are derived from hematopoietic stem cells in the bone marrow. T cells are involved in cell-mediated immune response‚ whereas B cells are involved in the humoral immune response. The surface of each lymphatic cell has receptors that enable them to recognize foreign substances. There are two major subtypes of T cells: the helper T cell and
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The Cell Cycle Mitosis: the process by which cells reproduce themselves‚ resulting in daughter cells that contain the same amount of genetic material as the parent cell. Interphase Prophase Metaphase Anaphase Telophase Cytokinesis Cell Division Occurs in a series of stages of phases Interphase occurs before mitosis begins Chromosomes are copied (# doubles) Chromosomes appear as threadlike coils (chromatin) at the start‚ but each chromosome and its copy(sister chromosome) change to sister
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How does the length of a wire affect its resistance? Introduction: This first report in Physics will show the investigation of how the length of a wire affects its resistance. For starters I will go through the main definitions‚ to get a better knowledge of what is going to happen. However I will plan it out first to show each step of how I started‚ and then go into detail about the results and what the investigation on a whole has showed me. I shall then conclude my findings and present them with
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