The Heart The heart is a group muscles that pumps blood throughout the blood vessels by repeated‚ rhythmic contractions. It is found in all animals with a circulatory system. The vertebrate heart is principally composed of cardiac muscle and connective tissue. Cardiac muscle is an involuntary striated muscle tissue found only in this organ and responsible for the ability of the heart to pump blood. The structure of the heart can vary among the different branches of the animal kingdom. Cephalopods
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are unique and develop at their own rate but they tend to follow a similar pattern. There are a number of areas of development like‚ Physical‚ communication‚ Social‚ emotional‚ behavioural‚ Intellectual and moral development. Development is very rapid in the early years of a child’s life and tends to slow down the older they get. Moral development is usually adapted from the setting a child lives and would usually deem something wrong and right‚ based on what their parents believe is wrong or right
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to other causes of myocardial stress‚ which included trauma‚ disease‚ or other abnormal states (e.g. ‚ pulmonary embolism‚ infection‚ anemia‚ pregnancy‚ drug use or abuse‚ fluid over load‚ arrhythmia‚ valvular heart disease‚ cardiomyopathies‚ congenital heart disease) . 4. The New York Heart Association (NYHA) developed a classification system‚ still used today to quantify the functional limitations of CHF patients. The NYHA classes are as follows: a) Class I : Degree of effort necessary to elicit
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Joseph Conrad’s book‚ Heart of Darkness‚ is a book that has been written with a lot of hidden meaning in it. Chinua Achebe has claimed that Heart of Darkness is an "offensive and deplorable book"‚ that reflects the imperialism against Africa. However‚ Conrad’s view is quite the opposite of what Achebe says Conrad’s views are. Through his writing in Heart of Darkness‚ Conrad is trying to convey to his readers that Imperialism is immoral and degrading. Conrad uses symbolic meaning in his characters
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activity of sodium butyldithiocarbamate pentahydrate‚ C5H20NNaO5S2 Ayodele T. Odularu a‚ Peter A. Ajibade a‚ Bolhuis‚ A. b a. Department of Chemistry‚ University of Fort Hare‚ Private Bag X1314‚ Alice 5700‚ South Africa. b. Department of Pharmacy and Pharmacology‚ University of Bath‚ United Kingdom. Abstract Synthesis of sodium butyldithiocarbamate pentahydrate‚ C5H20NNaO5S2‚ entailed a one-pot synthesis. The process of synthesis involved the use of butyl amine‚ carbon(IV) sulfide and sodium hydroxide
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Weight of ampicillin sodium (mg) What weight (in mg) of ampicillin sodium (C16H18N3NaO4S) will provide 144 mg of ampicillin base (C16H19N3O4S)? 27. Weight of potassium permanganate (g) Potassium permanganate is normally made as a concentrated solution which is then diluted prior to
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Preparation of Sodium Chloride through titration Abstract: acid-base titration is a technique commonly used to determine the moles of acid in a sample by adding a known volume of strong base of a known concentration. The strong base provides the hydroxide ion‚ to react quantitatively with the acid. The point at which the acid is completely and exactly consumed the known quantity of base is called the equivalence end point and is signalled by a colour change in the solution (end point). This colour
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Effect of Obesity on Health Insurance Rates By Khalida Willoughby American Public University Abstract Health insurance rates continue to rise partly due to the unhealthy lifestyles that millions of Americans choose to live. Among the leading reasons why insurance rates continue to climb is due to the rates of obesity in the nation. Unhealthy life styles of Americans such as increased consumption of fast foods‚ lack of exercise and lack or preventive care are mainly
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The effect of caffeine on typing speed‚ accuracy and heart beat 1. Introduction Caffeine is a substance found in coffee‚ tea and most sodas. When it is consumed‚ it is a mild stimulant. The energy drink‚ Monster‚ contains caffeine‚ which has the ability to manipulate adenosine (adrenaline)‚ a substance present in the brain that is used to transmit brain signals to different parts of the body. Adenosine causes an increase in alertness and awareness. Modern studies show that there is direct benefits
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Investigation - Solution Colour and Ion Concentration Aim: To investigate whether solution colour can be used to reliably determine the concentration of coloured ions in a solution. Hypothesis: the concentration of permanganate ions in the solution is inversely proportional to the percentage transmission of light through the solution. Dependent variable: concentration of permanganate ions. Independent variable: percentage transmission of light through the solution. Equipment: 20 ml
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