Aquaporins are "the plumbing system for cells‚" said Agre. Every cell is primarily water. "But the water doesn’t just sit in the cell‚ it moves through it in a very organized way. The process occurs rapidly in tissues that have these aquaporins or water channels." For many years‚ scientists assumed that water leaked through the cell membrane‚ and some water does. "But the very rapid movement of water through some cells was not explained by this theory‚" said Agre. Aquaporins selectively conduct
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all know that penicillin is one of the top known class of antibiotics prescribed today. Although this drug has been getting numerous applauds since the mid 1900s on its effectiveness; it did not start at that way. The biggest challenge to this discovery was it mass production‚ which later came down the road. This drug was discovered in a very unusual way by Alexander Fleming in 1920. Fleming had returned from a summer vacation and began sorting petri dishes‚ which contained colonies. Which are
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Rosalind Franklin Crick and Watson‚ together with Maurice Wilkins‚ won the 1962 Nobel Prize in physiology or medicine for their 1953 determination of the structure of deoxyribonucleic acid (DNA) this was one of the most significant scientific discoveries of the 20th century. James Watson and Francis Crick discovered the molecular structure of DNA model of the structure resembled a twisted rope ladder. They proposed that the DNA molecule consisted of two spirally wound‚ helical chains. Rosalind
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Abstract: A general decision making criterion involves several factors. What this journal focuses on is the influence of others’ decisions on one’s own‚ namely‚ the act of “looking up and looking around”. In any given situation it is human nature to first “look up”- that is‚ see what a more knowledgeable person (such as the boss) is doing‚ and then take a decision as to how one would act. The second option is to “look around”- that is‚ see what one’s colleagues and peer are doing and follow suit
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Changing perspectives is defined as the change of how an individual sees something or someone. Melina Marchetta uses changing perspectives in a variety of ways in her novel ‘Looking for Alibrandi’‚ highlighting that change is a lifelong process because no one is ever completely mature or knowledgeable‚ and that it can be unexpected and subtle or gradual and natural. Marchetta demonstrates this concept of change through her characters and certain events‚ experiences‚ perspectives and people they associate
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Discovery – Creative Writing Write an original narrative which deals with the idea that the best discoveries are unintended. You must include a birthday party. The lingering light was immersed by the rapidly falling night. The once salmon‚ purple sky transformed into a vast expanse of jet-black that engulfed the whole town. Yet at the corner of the street‚ the house remained unchanged. Supported only by stilts‚ its shabby character inconsistent to the grace and elegance of its neighbours. Its door
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May 7‚ 2013 St. Augustine‚ Discovery to Present Day It was April in the year 1513 that Spanish explorer Juan Ponce de Leon landed in an area between Cape Canaveral and the mouth of the St. Johns River. Over the years‚ archeologists have performed many “digs” at the Fountain of Youth‚ which is a National Archeological Park‚ where the village called Seloy was once occupied by the Timucuan Indians. This is where the city of St. Augustine began. Ponce de Leon arrived during the Easter season which
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Antibiotics Antibiotics transformed medicine. The discovery of antibiotics began by accident. On the morning of September 3rd‚ 1928‚ Professor Alexander Fleming was having a clear up of his cluttered laboratory. Fleming was sorting through a number of glass plates which had previously been coated with staphyloccus bacteria as part of research Fleming was doing. One of the plates had mould on it. The mould was in the shape of a ring and the area around the ring seemed to be free of the bacteria staphyloccus
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The lady in the looking glass: A reflection “The Lady in the Looking-Glass‚” by Virginia Woolf‚ tells the story of a woman who examines herself on the exterior and interior. Readers must wonder if the woman in this short story is a mere fictional representation of how Woolf sees her own life. On the outside‚ the woman is seen as rich and was self-made. Yet‚ this view of the character’s life is a superficial representation because on the inside‚ the character sees something entirely different; when
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The Discovery of the Fibonacci Sequence A man named Leonardo Pisano‚ who was known by his nickname‚ "Fibonacci"‚ and named the series after himself‚ first discovered the Fibonacci sequence around 1200 A.D. The Fibonacci sequence is a sequence in which each term is the sum of the 2 numbers preceding it. The first 10 Fibonacci numbers are: (1‚ 1‚ 2‚ 3‚ 5‚ 8‚ 13‚ 21‚ 34‚ 55‚ 89). These numbers are obviously recursive. Fibonacci was born around 1170 in Italy‚ and he died around 1240 in Italy
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