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anonymous

Howstuffworks "How Performance-Enhancing Drugs Work" - 0 views

  • Every two years as the Olympic Games begin, we hear about athletes using or at least being tested for performance-enhancing drugs. Every time the Tour de France rolls around, there's talk of possible doping. Sometimes, competitors raise the question when one athlete does particularly well. Other times, tests catch athletes with drugs in their systems. The practice of using artificial substances or methods to enhance athletic performance is called doping. Doping has become such a great concern that the United States formed an Anti-Doping Agency.
  • Why Some Athletes Use DrugsAthletes face enormous pressure to excel in competition. They also know that winning can reap them more than a gold medal. A star athlete can earn a lot of money and a lot of fame, and athletes only have a short time to do their best work. Athletes know that training is the best path to victory, but they also get the message that some drugs and other practices can boost their efforts and give them a shortcut, even as they risk their health and their athletic careers.
  • As far back as ancient Greece, athletes have often been willing to take any preparation that would improve their performance. But it appears that drug use increased in the 1960s. One well-publicized incident happened at the Seoul Olympics in 1988 when sprinter Ben Johnson tested positive for anabolic steroids and was stripped of his gold medal. Athletes may also misuse drugs to relax, cope with stress or boost their own confidence. Athletes may have several reasons for using performance-enhancing drugs. An athlete may want to: Build mass and strength of muscles and/or bones Increase delivery of oxygen to exercising tissues Mask pain Stimulate the body Relax Reduce weight Hide use of other drugs
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  • Building Mass and Strength Mass- and strength-enhancing drugs used by athletes include: Anabolic steroids Beta-2 agonists Human chorionic gonadotropin (hCG) Luteinizing hormone (LH) Human growth hormone (hGH) Insulin-like growth factor (IGF-1) Insulin
  • A steroid is a chemical substance derived from cholesterol.
  • he body has several major steroid hormones -- cortisol and testosterone in the male, estrogen and progesterone in the female. Catabolic steroids break down tissue, and anabolic steroids build up tissue. Anabolic steroids build muscle and bone mass primarily by stimulating the muscle and bone cells to make new protein.
  • Athletes use anabolic steroids because they increase muscle strength by encouraging new muscle growth. Anabolic steroids are similar in structure to the male sex hormone, testosterone, so they enhance male reproductive and secondary sex characteristics (testicle development, hair growth, thickening of the vocal cords). They allow the athlete to train harder and longer at any given period.
  • Anabolic steroids are mostly testosterone (male sex hormone) and its derivatives. Examples of anabolic steroids include: Testosterone Dihydrotestosterone Androstenedione (Andro) Dehydroepiandrosterone (DHEA) Clostebol Nandrolone
  • hese substances can be injected or taken as pills. Anabolic steroids have a number of possible and well-known side effects, including: Jaundice and liver damage because these substances are normally broken down in the liver Mood swings, depression and aggression because they act on various centers of the brain In males, the excessive concentrations interfere with normal sexual function and cause: Baldness Infertility Breast development
  • In females, the excessive concentrations cause male characteristics to develop and interfere with normal female functions. The drugs can: Stimulate hair growth on the face and body Suppress or interfere with menstrual cycle, possibly leading to infertility Thicken the vocal cords, which causes the voice to deepen, possibly permanently If pregnant, interfere with the developing fetus
Sylvia A

Bat World - 0 views

  • Bats are not flying mice; they are not even remotely related to rodents. Bats are such unique animals that scientists have placed them in a group all their own, called 'Chiroptera’, which means hand-wing. Bats are grouped with primates and lemurs in a grand order called Archonta.
  • Bats are not blind. Most bats can see as well as humans. Fruit bats have eyesight that is adapted to low-light, much like cats. Fruit bats also see in color.
  • If a bat swoops toward you, it’s probably after the mosquito that is hovering just above your head -  not your hair.
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  • Bats are not ugly or dirty. Most bats have very cute faces, some even resemble deer, rabbits, and little Chihuahuas. Like cats, bats spend an enormous amount of time grooming their fur, keeping it soft and silky.
  • Not all bats are vampires.  Of the world’s 1100+ species, only three are vampire bats limited mostly to Latin America. Vampire bats are very small (about the size of a package of M&Ms). Vampire bats do not attack humans or suck our blood; they prefer to get their teaspoon-sized meals from other animals.
  • Bats are wild animals, and all wild animals can be dangerous. Additionally, grounded bats are more likely to be sick so they should never be rescued bare-handed.
  • Bats are shy, gentle, and intelligent. They are among the slowest reproducing animals on earth. Most bat species have only one live young per year.
zach haegner

Fast Food Nation - Wikipedia, the free encyclopedia - 0 views

    • zach haegner
       
      1/8 of workers in us has been employed by mcdonalds largest purchaser of beef prk and potatoes
Miguel Buquing

How to Predict the Weather Without a Forecast - wikiHow - 0 views

  • Remember the rhyme: "Red sky at night, sailor's delight; Red sky at morning, sailors take warning." Look for any sign of red in the sky (not a red sun); it will not be a bold orange or red the majority of the time, but that depends a little on where you live. Sailor's delight If you see a red sky during sunset (when you're looking to the west), there is a high pressure system with dry air that is stirring dust particles in the air, causing the sky to look red. Since prevailing front movements and jet streams weather usually move from west to east (see Tips), the dry air is heading towards you.
  • Check the grass for dew at sunrise. If the grass is dry, this indicates clouds or strong breezes, which can mean rain. If there's dew, it probably won't rain that day. However, if it rained during the night, this method will not be reliable.
    • Miguel Buquing
       
      For Personal Learning Project
Ashley Yoder

ABC News: Excerpt: 'Burning Up' - 0 views

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    they have a book out telling you how they experienced they're life on tour
lora ardoin

New Jersey Devils - Fan Zone - 25 Year History - The Stories 1982-2006 - 0 views

shared by lora ardoin on 04 Dec 08 - Cached
    • lora ardoin
       
      loras page!!!!!! back off!!!!!!!!!!!!!!!!!!!!!!!!
  • The Devils did, and poof, their magical run to the 2000 Stanley Cup Championship had begun. They became the first team, down 3-1 in the conference finals, to reach the Stanley Cup Finals since the league expanded in 1967.
  • Larry Robinson (shown, 1999-00 season) is named the ninth head coach in Devils' history.
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  • Scott Stevens is awarded the Conn Smythe Trophy as the most valuable player of the playoffs.
  • Brodeur would not allow more than one goal in any of the next four games.
  • He was unbelievable in game six as well, allowing just one goal as the game went into a second 20-minute sudden death overtime before Jason Arnott, the Devils’ leading scorer in the series, pumped in the Cup-winning goal at 8:20 of the second overtime.
  • Defenseman and Captain Scott Stevens was named the Conn Smythe Trophy winner. Later that June, center Scott Gomez won the Calder Memorial Trophy as the league’s Rookie of the Year for finishing with 70 points, including 51 assists.
Paloma Gomez

"Artist" Leaves Dog To Die on Exhibition Display - Killing Animals as Form of Contempor... - 0 views

  • A man who calls himself an artist ties a dog to a wall inside an art gallery. No, you heard me correctly - we're not talking about the night janitor who caught the starving animal littering the front steps of the gallery and decided to vent a lifetime of frustration by pulling off a ridiculously cruel stunt. We're talking about a man who calls himself an artist. His name is Guillermo Vargas Habacuc and the year is 2007. Guillermo is one of the artists taking part in an art exhibition that takes place at a Costa Rican gallery - pompously called "Centro Nacional de la Cultura" (National Center for Culture). He pays a bunch of kids to catch the street dog, which he cruelly baptizes "Natividad" (Spanish for "birth"). His aim is to make an artistic statement about the fragility and the misery in which all dogs - indeed, all human beings live, and he achieved just that by letting the dog starve to death tied to a wall, in plain view of the exhibition visitors, some of whom demanded futilely that the dog be released.
    • Paloma Gomez
       
      Tells how the man caught the dog and what he did once he put in on display
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    Tell how the animal was caught and put on display... also tells what his explanation or reason is for doing what he did
Carlen Hodgson

Phobia List - An A to Z List of Phobias - 0 views

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    List of different phobias
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    List of different phobias
Minjie Kim

Behaviorism - Wikipedia, the free encyclopedia - 0 views

  • philosophy of psychology based on the proposition that all things which organisms do — including acting, thinking and feeling—can and should be regarded as behaviors.[1]
  • is considered radical since it expands behavioral principles to processes within the organism
Diana Davis

Colon and Rectal Cancer Home Page - National Cancer Institute - 0 views

  • Cancer that forms in the tissues of the colon (the longest part of the large intestine). Most colon cancers are adenocarcinomas (cancers that begin in cells that make and release mucus and other fluids).
  • Cancer that forms in the tissues of the rectum (the last several inches of the large intestine closest to the anus).
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    cancer that forms in the tissue of the colon or the rectum
Katie M

Global Warming Effects, Global Warming Causes, Causes of Global Warming, Effects of Glo... - 0 views

  • Many scientists have specified various reasons for global warming effects on the environment and for human life. It is not easy to point one reason for global warming effects, but recently you might have saw many change in global climate. Global warming effects have various consequences such as glacier volume decreasing, rise in sea levels, shrinkage of Arctic and altered fashion of doing agriculture have been named as direct effects on global warming. Secondary global warming effects are extreme weather events, increase in tropical diseases, changes in the timing of seasonal patterns in ecosystems, and drastic economic impact.
  • Before many times back, many scientist and researchers were hopping that a positive effect of global warming would be increased agricultural yields(outputs), because of the role of carbon dioxide in photosynthesis which might behave in positive manner, but now it resulting in destructions of several crops. In the area of Iceland, due the rising temperatures which have made possible the widespread sowing of barley easily in an effective manner, which was not possible twenty years from now. The net result is expected to be that 33% less maize—the country's staple crop—will be grown. The reduction in rainfall has turned millions of land into deserts.
  • Insurance industry has been affected very badly with the risk of insurance; the number of major natural disasters has been increased to 300% since 1960s, and insured losses increased fifteenfold in real terms. According to Choi and Fisher (2003) each 1% increase in annual precipitation could enlarge catastrophe loss by as much as 2.8%.
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  • All major Transportation sources such as Roads, airport runways, railway lines and pipelines, always require time to time maintenance and renewal as they become subject to greater temperature variation. Regions already adversely affected include areas of permafrost, which are subject to high levels of subsidence, resulting in buckling roads, sunken foundations, severely cracked runways and many other related problems.
  • Most of the low-lying countries such as Bangladesh, Indonesia, Netherlands and many other small islands have been affected by sea level rise, in terms of floods or the cost of preventing them. In most of the poorest low-plain countries, land is the only available space, or fertile agricultural land which is livelihood for them. But due to flood they are finding problem now to perform their activities.
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    effects of global warming
Patrick Wan

Breakdance - Wikipedia, the free encyclopedia - 0 views

  • Breakdance, breaking, b-boying or b-girling is a street dance style that evolved as part of the hip hop movement among African American and Puerto Rican youths in Manhattan and the South Bronx of New York City during the early 1970s
  • A breakdancer, breaker, b-boy or b-girl refers to a person who practices breakdancing.
  • Breakdancing may have begun as a building, productive, and a constructive youth culture alternative to the violence of urban street gangs.[1] Today, breakdancing culture is a remarkable discipline somewhere between those of dancers and athletes. Since acceptance and involvement centers on dance skills, breakdancing culture is often free of the common race and gender boundaries of a subculture and has been accepted worldwide.
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  • There are four basic elements that form the foundation of breakdance. These are toprock, downrock (also known as footwork), power moves, and freezes.
  • Battles are an integral part of the b-boying culture. They can take the form of a cypher battle and an organized battle. Both types of battles are head to head confrontations between individuals or groups of dancers who try to out-dance each other.
Patrick Wan

List of breakdance moves - Wikipedia, the free encyclopedia - 0 views

  • The Top Rock is a combination of steps done while standing up. This is the entry dance that Bboys and Bgirls use to start their set. These steps are done before you do a power set or before you go down to the floor. This is the breaker's chance to show how well he or she can rock the beat and/or make gestures to intimidate their opponent
  • The foundational footwork sequence. Although many variations exist that either add or subtract steps in the sequence, the 6-step is the most basic form of downrock.
  • A Power Move is any type of move in Bboying which requires spinning and/or rotating in a way that can be done so in multiple rounds. All Power Moves (or series of a type of Power Move) can be connected in combos to form a "Power Combo". Breakers that use mostly Power combos in there sets are commonly known as "Power Heads". Example: Flare-Air Flare-Elbow Air Flare-Air Flare-1990...etc Or-Air Flare 1.5-Babymill-Windmill-Swipe-Windmill-Halo-Headspin...etc The possible number of combinations are endless and only limited by stamina, strength and imagination. In 2002 The Guinness Book of World Records began tracking number of power move rotations for their world record standings. At that time Canadian Gregory Burbidge broke records for Air Flare, Headspins, and Elbow Airflares. American Lauren Jacob held the record for Chair Flares. American Laura Derrick held the record for Tappingmills. Nicole Jones (nationality unknown) held the record for Munch Airflares. In 2004 Guinness removed these titles from their records. At the time Gregory Burbidge was the only one who still held records from the original group.
haley haegner

Finding a Fuel Efficinent Luxury Car Is Not an Oxymoron - 0 views

  • mprove the power of these luxury autos while they consume less gas.
  • fuel economy
  • uel efficient luxury autos,
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  • uel efficient cars that last a long time
  • engineering technology is excellent
  • incredible mileage
  • without consuming vast amounts of fuel.
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    fuel efficient.
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