"The substance of the lung is dilatable and extensible like the tinder made from a fungus. But it is spongy and if you press it‚ it yields to the force which compresses it‚ and if the force is removed‚ it increases again to its original size." - Leonardo da Vinci‚ late 15th century.23 The beginning of accurate knowledge concerning the physiology of breathing dates back to the 17th century. Before that time‚ the ideas in vogue about why and how we breathe were mystical and strange. Hippocrates “counted
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Animal testing Aristotle and Erasistratus were the first two early Greek physician-scientist performed experiments on living animals. In 1859‚ Charles Darwin’s evolutionary theory reinforced the conception that animals could serve as models for humans in the study of biology and physiology. Animal testing plays a large important role in pharmaceutical and medical advances‚ but many question the mortality of such use of the animal’s life. More than 100 million aninals are used for testing every
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Jacky Rivera #12 Language Arts April 27‚ 2012 Harry Houdini "My brain is the key that sets me free!" -Harry Houdini. Harry Houdini was a man that had many expetations in front of him. There was a road that he was suppost to follow that would lead him to a simple happy life but he didn’t want a simple life he wanted an adventurase life‚ Harry explains. Harry left that path at the age of 15. He wanted to be a magician. He had many tragedies‚ happiness‚ and his tricks were so magestic they could
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What is evolution? The theory of evolution is one of the great intellectual revolutions of human history‚ drastically changing our perceptions of the world and of our place in it (1). The theory of evolution states that all lifeforms on earth share a common ancestor as a result of variation and selection over a long period of time (around 4 million years) (2). Variation means that offspring are not exact copies of their parents and selection occurs when only some of those offspring go on to reproduce
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It is undoubtable that German aggressions has some part to play in the outbreak of war in 1914 – Bethmann-Hollweg’s ‘Blank Cheque’ remains an ominous symbol of blind aggression over considered economics‚ whilst the Kaiser’s 1913 claim that ‘the war between Germandom and Slavdom [was] inevitable’ seems to highlight fairly explicitly the militaristic attitude at the heart of central government. And yet it is only too easy to place undue emphasis on Germany in some respects‚ and under exaggerate
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Origin of life on earth is the result of a slow and gradual process of chemical evolution that probably occurred about 3.8 billion years ago. This theory was proposed independently by two scientists - A.I.Oparin‚ a Russian scientist in 1923 and J.B.S Haldane‚ an English scientist‚ in
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Thesis Statement: It is true that google company is the greatest place to work. What the company proud ‚therefore‚ is that the great contributions Googlers make to the communities in which they live and work. ! Topic Sentence: Google Company provides its employees all kinds of perks to make them more productive and cooperative. ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 1 ! Supporting Details(1): There are lots of benefits for employees in google
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pharmacology 5(3): 207-211. Brittain RT‚ Farmer JB‚ Jack D‚ Martin LE‚ Simpson WT (1968). Alpha-[(t-Butylamino)methyl]-4-hydroxy-m-xylene-alpha 1‚alpha 3-diol (AH.3365): a selective beta-adrenergic stimulant. Nature 219(5156): 862-863. Bylund DB (2007). Alpha- and beta-adrenergic receptors: Ahlquist’s landmark hypothesis of a single mediator with two receptors. American journal of physiology. Endocrinology and metabolism 293(6): E1479-1481. Cullum VA‚ Farmer JB‚ Jack D‚ Levy GP (1969). Salbutamol: a new
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about Cushing’s Disease? Group Number: No. 6 Identification of Group Members: What is there to know about Cushing’s disease? What is Cushing’s disease? The Cushing’s disease was first describe by a neurosurgeon named Harvey Cushing in the year 1912 (JB Lippincott‚ (1992)). The disease also known as Tertiary or Secondary Hypercortisolism (Minnie G: Lanzino‚ Giuseppe: Maartens‚ Niki F.; Laws‚ Edward R. (2002)) is a condition in which the steroid hormone Cortisol is produced excessively. The excessive
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