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Ann Thomas

Benefits of Pets - 0 views

shared by Ann Thomas on 08 Dec 08 - Cached
  • Pets reduce stress - studies have shown that simply petting your cat or dog can lower your heart and respiratory rates, blood pressure and cholesterol levels, a great benefit of pet ownership.   Companion pets help safeguard against loneliness and depression - Who can resist returning the affection you receive from a pet. They love you unconditionally; well, at least dogs do!  They are always happy to see you and make you feel good even when you’ve had a bad day.  More benefits of having a pet are... Pets encourage us to get out and exercise - What better way to get exercise than to share a walk with your dog or a play outing to the park.  If you have a cat or an older small dog, you can still take them for a walk in a pet stroller.  Another benefit of owning a pet is...   Helping us meet people - Almost everyone loves animals and many people may want to meet your dog or cat during your outings with your pet.  Those times give us an opportunity to increase our circle of friends. The next benefit of a pet is...
  • A dog or cat will help children’s self esteem and social development – pets are accepting and give positive reinforcement to children. Having a pet will benefit your child’s development as it promotes learning how to be responsible. They will listen to all your stories without fail – even if your human friends get tired from time to time of what you have to say, your pet will always think you “look great”, will never argue with you, and will never tell you they are too tired to talk. This is one of the greatest benefits of pets that people don’t recognize!   Pets will make you laugh, the best stress reliever in the world – your new family pet will provide many hours of amusement for your family as you “explore” your world together. What a wonderful benefit of having a pet in your home!   Another benefit of pet ownership is they help older people feel less isolated – They lessen loss for older people who are on their own and help to keep them involved in caring for another being.   
  • Pets can keep you company while you garden - This may be a stretch, but there is nothing cuter than a cat peeking out from behind the petals of your flower garden or a dog helping you “turn the earth”. Some may not consider digging a benefit of having a pet, but if properly trained it shouldn’t be a problem and your dog can actually help you tote your gardening tools around the yard and your cat will appreciate the catnip in your herb garden.
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    Pets reduce stress - studies have shown that simply petting your cat or dog can lower your heart and respiratory rates, blood pressure and cholesterol levels, a great benefit of pet ownership. Companion pets help safeguard against loneliness and depression - Who can resist returning the affection you receive from a pet. They love you unconditionally; well, at least dogs do! They are always happy to see you and make you feel good even when you've had a bad day. More benefits of having a pet are... Pets encourage us to get out and exercise - What better way to get exercise than to share a walk with your dog or a play outing to the park. If you have a cat or an older small dog, you can still take them for a walk in a pet stroller. Another benefit of owning a pet is... Helping us meet people - Almost everyone loves animals and many people may want to meet your dog or cat during your outings with your pet. Those times give us an opportunity to increase our circle of friends. The next benefit of a pet is... A dog or cat will help children's self esteem and social development - pets are accepting and give positive reinforcement to children. Having a pet will benefit your child's development as it promotes learning how to be responsible. They will listen to all your stories without fail - even if your human friends get tired from time to time of what you have to say, your pet will always think you "look great", will never argue with you, and will never tell you they are too tired to talk. This is one of the greatest benefits of pets that people don't recognize! Pets will make you laugh, the best stress reliever in the world - your new family pet will provide many hours of amusement for your family as you "explore" your world together. What a wonderful benefit of having a pet in your home! Another benefit of pet ownership is they help older people feel less isolated - They lessen loss for older people who are on their own and help to
Carlen Hodgson

Off-Season Basketball Coaching, Coach's Clipboard Playbook - 0 views

  • As coaches, we expect our players to work in the off-season and make improvements. But what about us as coaches... what are we doing in the off-season to help our team and to improve ourselves as coaches?
  • Maintain balance in your personal life. Right after the season is over, step back and forget about it for a couple weeks. Take time for your family and friends, relax, enjoy life and your time away from the gym.
  • We already discussed re-evaluating your system, plays, players, etc. Make the necessary adjustments, if any, that you think will help next season. Think about your goals for the upcoming season. Now is the time to create a master practice plan, if you find that helpful.
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  • state athletic associations have rules as to how much time you can spend with your players in the off-season, so make sure you understand the rules first. The off-season is a good time to try to correct individual shooting technique and other fundamental errors.
  • he off-season is a good time to experiment with your players. If you have a few team camps and scrimmages, now is the time to try a player in a new role or a new position... for example, moving a player into the post, or a wing player to the point guard position, etc. The off-season is also a good time to try out a new offense or defense. But I wouldn't show all my favorite plays in scrimmages. Finally... let's go back to our first discussion point. Play a little golf, go fishing, take a family trip, etc. Enjoy the off-season!
Janina Jose

Kids Search - powered by EBSCOhost: France and It's Celebrations - 0 views

  • Section: Festival The start of the New Year has been celebrated in China for more than 3,000 years. New Year was a time when the farmers gave thanks for the harvest and prayed to the gods for a good harvest in the coming year. This was the one period in the busy farming year when there was time to have a celebration and when the family could get together, relax, and be merry. Chinese New Year begins with a New Moon. The Lunar Year is calculated from the time it takes for the Moon to travel around the Earth, while the Western (Gregorian) calendar is based on the time it takes for the Earth to circle the Sun. The orbits of the Moon bear no relation to the time it takes for the Earth to go around the Sun, which is why the Chinese Lunar New Year is celebrated on a different date each year. In China the New Year was renamed the Spring Festival, in 1911, when the Western calendar was officially accepted in China. However, it is still commonly known around the world as the Chinese New Year. Chinese years are named after one of twelve animals. These have been used in the same order to name the years since the sixth century A.D. Each animal is said to have its own personality and emotions, which are present in people born within its year. ~~~~~~~~By Sarah Moyse This article is copyrighted. All rights reserved.Source: Chinese New Year (0-7613-0374-X)
  • Holidays are very important to the French. The French begin the year with a celebration of the Jour de l'An, which is New Year's Day. They greet each other by saying "Bonne Annee!" (Happy New Year). On January 6th there is la Fete des Rois (the Festival of the Three Kings), where people have a King's Cake. Whoever finds the special toy that has been baked into the cake gets to be king or queen for the day. In February, the French celebrate la Saint-Valentin or Valentine's Day by giving, valentines and chocolates. Also the French mark the start of Lent (a religious time when people fast) with Mardi Gras celebrations. On the 1st of April people play tricks on each other and say "Poisson d'avril!" which means "April fish!" People have little paper fishes that they cut out and try to stick on the backs of their friends that day. Easter is an important holiday in France. On the morning of Easter Sunday, most French people go to church. Afterwards, they carry home candles that have been blessed by priests. For Easter, which is called Le Pacques, omelettes, (an egg dish) are usually eaten for breakfast. People also give each other chocolate eggs and chocolate bunnies.
  • Holidays are very important to the French. The French begin the year with a celebration of the Jour de l'An, which is New Year's Day. They greet each other by saying "Bonne Annee!" (Happy New Year). On January 6th there is la Fete des Rois (the Festival of the Three Kings), where people have a King's Cake. Whoever finds the special toy that has been baked into the cake gets to be king or queen for the day. In February, the French celebrate la Saint-Valentin or Valentine's Day by giving, valentines and chocolates. Also the French mark the start of Lent (a religious time when people fast) with Mardi Gras celebrations. On the 1st of April people play tricks on each other and say "Poisson d'avril!" which means "April fish!" People have little paper fishes that they cut out and try to stick on the backs of their friends that day.
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  • Easter is an important holiday in France. On the morning of Easter Sunday, most French people go to church. Afterwards, they carry home candles that have been blessed by priests. For Easter, which is called Le Pacques, omelettes, (an egg dish) are usually eaten for breakfast. People also give each other chocolate eggs and chocolate bunnies. May 1st is May Day and French people wear corsages made of flowers like the lily-of-valley, which they also give to friends for good luck. During the summer months, there is the Tour de France, which is a bicycle race. The 14th of July is France's Independence Day, called Bastille Day. There are parades and fireworks, and people decorate their houses and celebrate all day. Christmas is a favorite holiday in France for the young and old. On Christmas Eve, families often attend midnight mass. After church, they return home for a big dinner called le reveillon. Dinner often consists of such foods like soup, turkey, goose, and oysters. A popular dessert at Christmas time is buche de Noel, a cake filled with chocolate and rolled into the shape of a log. The cake represents the Yule log that burns in the fireplaces of the French people during Christmas.
Janina Jose

Kids Search - powered by EBSCOhost:New years Eve and New years Day - 0 views

  • ORIGIN OF THE CELEBRATION Section: Festival The start of the New Year has been celebrated in China for more than 3,000 years. New Year was a time when the farmers gave thanks for the harvest and prayed to the gods for a good harvest in the coming year. This was the one period in the busy farming year when there was time to have a celebration and when the family could get together, relax, and be merry. Chinese New Year begins with a New Moon. The Lunar Year is calculated from the time it takes for the Moon to travel around the Earth, while the Western (Gregorian) calendar is based on the time it takes for the Earth to circle the Sun. The orbits of the Moon bear no relation to the time it takes for the Earth to go around the Sun, which is why the Chinese Lunar New Year is celebrated on a different date each year. In China the New Year was renamed the Spring Festival, in 1911, when the Western calendar was officially accepted in China. However, it is still commonly known around the world as the Chinese New Year. Chinese years are named after one of twelve animals. These have been used in the same order to name the years since the sixth century A.D. Each animal is said to have its own personality and emotions, which are present in people born within its year. ~~~~~~~~By Sarah Moyse This article is copyrighted. All rights reserved.Source: Chinese New Year (0-7613-0374-X)
  • RELIGIONS AND RITUALS Section: Festival Although the New Year celebration is not mainly a religious one, many Chinese will visit a temple at this time of the year to make an offering to the Buddha or to the gods in the hope of making the New Year a good one. Ancestors and gods are honored with ceremonies in the home around a family altar decorated with flowers. Incense and candles are burned at the altar. At important family banquets the ancestors may be recognized as "spiritual guests" and first offered food that is afterward eaten with the meal. The Chinese have three main systems of ideas that are important to them: Confucianism, Daoism, and Buddhism. Although these systems are very different, many Chinese follow some or all of the rituals associated with them just to be safe. Confucius lived in the fifth century B.C. and spoke about the value of good behavior in private life and in government. He said that politeness, honesty, courage, and loyalty were what made good people. He believed in self-development through education and thought that people gain in wisdom as they grow older. It is part of the Confucian tradition to honor parents and ancestors.
  • Daoism comes from the teachings of Laozi, who lived at the same time as Confucius. His book, the Dao De Jing (The Way and Its Power), describes the way (dao means "way") to live at peace with nature so as not to upset natural balances. The Way involves balance between opposite forces. They are called yin and yang. While yin is dark and female, yang is the opposite, being light and male. When yin and yang are balanced, there is perfect harmony with nature. Unlike Confucianism and Daoism, which started in China, Buddhism came from India and is based on the teachings of the Buddha -- a holy man. Buddha taught that people need to let go of earthly desires and become fully aware of what they are doing in the present. Buddhists believe that after death each soul moves on to another body, which may be animal or human. What one is chosen for in the next life depends on how good or bad the person has been in this life. The Chinese also pray to other gods, holding the view that the more gods who can look after them the better. The important ones are the Kitchen God, who watches the family in the home, the Jade Emperor, who is the most important god in heaven, the God of Wealth, who determines how wealthy people are, and the Door Gods. ~~~~~~~~By Sarah Moyse This article is copyrighted. All rights reserved.Source: Chinese New Year (0-7613-0374-X)
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  • HOLIDAY CELEBRATIONS On New Year's Eve, Chinese families have a special feast of seafood and dumplings. Dessert is always Nian Gao- a special New Year's Cake. Everyone stays up late to watch the midnight fireworks. On New Year's Day families go door to door to visit. They exchange gifts with their relatives and neighbors. It is thought to be bad luck to fight or argue at the start of a New Year. Everyone is warm and friendly toward each other. Fireworks light the night sky during a New Year celebration in Hong Kong. ~~~~~~~~By Kieran Walsh Kieran Walsh is a winter of children's nonfiction books, primarily on historical and social studies topics. A graduate of Manhattan College, in Riverdale, NY, his degree is in Communications. Walsh has been involved in the children's book filed as editor, proofreader, and illustrator as well as author. This article is copyrighted. All rights reserved.Source: Chinese New Year
Cassie Gonzales

gymnastics time - 0 views

  • Analyzing records of patients ages 6 to 17 who were treated in emergency rooms from 1990 to 2005, the study found that an average of 5 out of every 1,000 young gymnasts each year — about 27,000 — required medical attention for injuries ranging from sprains to nerve damage.
  • Analyzing records of patients ages 6 to 17 who were treated in emergency rooms from 1990 to 2005, the study found that an average of 5 out of every 1,000 young gymnasts each year — about 27,000 — required medical attention for injuries ranging from sprains to nerve damage.
Evan L-Q

Knives-Some Legal Issues To Think About Next Time You Step Outside With Your Favorite P... - 0 views

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    Knives-Some Legal Issues To Think About Next Time You Step Outside With Your Favorite Pocket Knife
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
Ann Thomas

Alley Cat Rescue � The National Cat Protection Association - 0 views

  • Feral cats can minimize rodent problems. While cats cannot hunt rats and mice into extinction, they can keep their populations in check and discourage new rodents from moving into the area. Often feral cats fill in a gap in the current ecosystem. For example bob cats or lynx used to live up and down the East Coast but were hunted ruthlessly and driven away by development. Feral cats are similar in size and behavior to these native feline predators and help to control the same species of small prey animals. Many people enjoy watching feral cats and observing animals has been shown to lower blood pressure in medical studies. People who help to care for feral cats by feeding them and taking them to the vet enjoy many benefits. Often cat caretakers are elderly and live alone, a population at risk for depression, loneliness, and isolation. Cats relieve these conditions and often bring a sense of happiness and purpose to people who help them. Just as companion animals have been shown extend life expectancies, lower blood pressure, and relieve stress, caring for feral cats improves the health of their caretakers. Individuals who cannot take on the full time commitment of adopting a companion animal can participate in programs to help feral cats. This provides a viable alternative to irresponsibly purchasing an animal one is not prepared to care for. An established, stable, vaccinated, and sterilized colony of feral cats will deter other stray and feral cats from moving into the area. This actually decreases the risk that residents will encounter an unvaccinated cat, and will virtually eliminate problem behaviors like fighting and spraying.
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    1. Feral cats can minimize rodent problems. While cats cannot hunt rats and mice into extinction, they can keep their populations in check and discourage new rodents from moving into the area. Often feral cats fill in a gap in the current ecosystem. For example bob cats or lynx used to live up and down the East Coast but were hunted ruthlessly and driven away by development. Feral cats are similar in size and behavior to these native feline predators and help to control the same species of small prey animals. 2. Many people enjoy watching feral cats and observing animals has been shown to lower blood pressure in medical studies. 3. People who help to care for feral cats by feeding them and taking them to the vet enjoy many benefits. Often cat caretakers are elderly and live alone, a population at risk for depression, loneliness, and isolation. Cats relieve these conditions and often bring a sense of happiness and purpose to people who help them. Just as companion animals have been shown extend life expectancies, lower blood pressure, and relieve stress, caring for feral cats improves the health of their caretakers. 4. Individuals who cannot take on the full time commitment of adopting a companion animal can participate in programs to help feral cats. This provides a viable alternative to irresponsibly purchasing an animal one is not prepared to care for. 5. An established, stable, vaccinated, and sterilized colony of feral cats will deter other stray and feral cats from moving into the area. This actually decreases the risk that residents will encounter an unvaccinated cat, and will virtually eliminate problem behaviors like fighting and spraying.
Sara Espinosa

The World's Largest City - TIME - 0 views

  • Virtually overnight, Chongqing has become the largest city not only in China but in the world. Territory to the north and west has been annexed, so that the population now encompasses 13.89 million people.[*]
  • Chongqing, as a result, is a swirling cauldron of noise and smoke as buzzing motorbikes and overloaded buses strain to climb its steep hills.
  • economic laboratory
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  • trucks, buses, machine tools, chemicals, textiles and munitions.
  • high-grade coal, natural gas and iron ore, as well as rich red earth
  • vegetables and grain
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    chongqing
Carlen Hodgson

12 Surefire Basketball Tips for the Off Season - What Should Players Do Between Seasons? - 0 views

  • The season is winding down. Routines change, friendships have grown, priorities change. As a player, what should you do now? When practice time comes and there is no practice, what do you do? When there are no games to prepare for, what do you do with your time? Here are a just a few thoughts I had as to how to recover and prepare for the next season. 1. Take 3 - 4 weeks to relax. It has been a long, physically and mentally draining season. If you want to improve, you have to give yourself a chance to recover. 2. Catch up and get ahead of your schoolwork. 3. Talk to your coach and evaluate your season. Talk about what you did well and what you did not. Determine the areas you need to improve on. Discuss the things you would like to do and how to accomplish them. 4. After taking a month off, start on your off-season workout program. The program should be about 75% skill work and 25% play. 5. Develop your shooting stroke. If you want to become a GREAT shooter and raise your percentage, it MUST happen during the off season. It's just TOO difficult to develop these skills and improve during the season. It must be done during the off season! 6. Start a strength training program. Your objective should be to gain strength from now until the end of the summer. 7. As you enter the summer, add more play to your workout. You should be at about 50% skill work, 50% play. Don't neglect your weight work. Great strength gains can be made during this period. 8. Go to camp. Learn form other coaches, play against different players. The more diverse your summer experience, the better player you will become. 9. When the summer is over, your routine changes. GET AHEAD in the classroom. Once the season starts, it is easy for your schoolwork to slip. 10. Change your workout routine to 25% skill, 75% play. 11. Switch you strength training routine to an endurance and strength maintenance routine. 12. A week before the season, take some time off. Get ready to go.
Ann Thomas

The Health Benefits of Owning a Cat: Pets Reduce Risk of Heart Attack, Stroke, and Othe... - 0 views

  • Cat ownership helps children to learn responsibility and develop a greater capacity for empathy at an early age. In addition, pets provide unconditional love and acceptance, which can help children through difficult times.
  • Cats also offer protection against certain physical conditions. If adopted before or shortly after a child is born, owning a cat reduces the risk of developing animal allergies, asthma, and possibly other illnesses as well. One study found that children living with pets were 13-18% less likely to miss school due to illness than children without pets. Researchers who measured the salivary immunologobulin levels of young pet owners found that their immune function was less likely to be in the sub-normal range than that of non-pet-owners. Additionally, cats can provide particular therapeutic benefits for children with conditions such as autism, especially those who suffer from motor coordination problems.
  • and cat owners tend to have lower triglycerides, which reduces their risk of developing and dying from cardiovascular disease.
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  • Pet ownership has also been shown to boost the levels of mood-regulating neurotransmitters such as dopamine and serotonin. As such, pets can reduce feelings of loneliness, anxiety, depression, and other negative states.
  • Elderly people are particularly likely to benefit from the health-protective effects of cat ownership. Those with cats are less inclined to suffer heart attacks, their blood pressure is lower on average, they report less tension and stress, and they live longer overall.
  • A University of Minnesota study of 4,435 people found that those who did not own cats were 30-40% more likely to die of cardiovascular disease, even if they owned dogs.
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    Owning cat can provide psychological and physical health benefits, particularly for children, seniors, and those with medical conditions or disabilities. Cat ownership helps children to learn responsibility and develop a greater capacity for empathy at an early age. In addition, pets provide unconditional love and acceptance, which can help children through difficult times. Cats also offer protection against certain physical conditions. If adopted before or shortly after a child is born, owning a cat reduces the risk of developing animal allergies, asthma, and possibly other illnesses as well. One study found that children living with pets were 13-18% less likely to miss school due to illness than children without pets. Researchers who measured the salivary immunologobulin levels of young pet owners found that their immune function was less likely to be in the sub-normal range than that of non-pet-owners. Additionally, cats can provide particular therapeutic benefits for children with conditions such as autism, especially those who suffer from motor coordination problems. and cat owners tend to have lower triglycerides, which reduces their risk of developing and dying from cardiovascular disease. Pet ownership has also been shown to boost the levels of mood-regulating neurotransmitters such as dopamine and serotonin. As such, pets can reduce feelings of loneliness, anxiety, depression, and other negative states. Elderly people are particularly likely to benefit from the health-protective effects of cat ownership. Those with cats are less inclined to suffer heart attacks, their blood pressure is lower on average, they report less tension and stress, and they live longer overall. A University of Minnesota study of 4,435 people found that those who did not own cats were 30-40% more likely to die of cardiovascular disease, even if they owned dogs.
Jilliane Velazco

Online Music Alters Industry Sales Tempo - Los Angeles Times - 0 views

  • A year after Apple Computer Inc. launched its iTunes Music Service, the online music industry is selling songs by the millions
  • Customers at three of the leading online services – iTunes, Musicmatch Inc.’s Musicmatch Downloads and RealNetworks Inc.’s Rhapsody – buy about 10 times as many singles as they do albums. Offline, people buy 50 times more CDs than singles.
  • music lovers buying a few 99-cent singles instead of $15 CDs.
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  • “There’s no money to be made from singles,”
  • Dozens of free networks emerged to let people copy songs from one another’s computers, drawing an estimated 63 million users in the U.S. alone by mid-2003.
  • Apple said the service sold its 50 millionth song March 15.
  • Some online music companies continue to struggle, but the sector is growing fast and steadily.
  • Analysts estimate that the services’ revenue will grow from about $65 million last year to $250 million in 2004, with $120 million or more from downloadable singles
  • CD sales totaled $11.2 billion in the U.S. last year
  • online customers are buying a much broader range of music than is being sold in stores.
  • about 75% of the paid downloads weren’t in Billboard’s Top 200 and about 60% were “catalog,” or older, tracks.
  • more than 63% of the CDs sold in stores last week were new releases.
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    more people have been using piracy instead of buying real cd's from stores
Heidi Krause

Dictator by Demand - TIME - 0 views

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    Christian Dior
Heidi Krause

In the House Of Dior - TIME - 0 views

~ * josie * ~

The 50 greatest New York musicians of all time - Time Out New York - 0 views

  • Deciding who is and who isn’t a bona fide New Yorker was a trickier endeavor, especially for jazz musicians, many of whom arrived in the city already armed with impressive résumés. Jazz may have been born in New Orleans, but it came of age, again and again, right here.
    • ~ * josie * ~
       
      i think this is such an opinian that the best musicians ar from new york
NEECiE MURRAY

Rap music: Destroying our youth? - 0 views

  • non-urban, lower socioeconomic neighborhoods
  • 522 black girls between the ages of 14 and 18
  • Three times more likely to hit a teacher * Over 2.5 times more likely to get arrested * Twice as likely to have multiple sexual partners * 1.5 times more likely to get a sexually transmitted disease, use drugs, or drink alcohol.
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    HOW HIP HOP MAKES PEOPLE VIOLENT
Kate L

Grolier Multimedia Encyclopedia - 0 views

  • basic laws of physics dictate that energy is conserved and can only be changed from one form to another or into matter.
  • Fuel, on the other hand, is the accumulation of matter and therefore represents a store of energy.
  • released in the form of heat when the fuel is burned in chemical or nuclear reactions
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  • cannot be reversed to regenerate the original fuel mass
  • a fuel problem does exist
  • If the supply of fuel is finite, not only will there be no energy supply when the fuel is exhausted
    • Kate L
       
      Finite means: a form of a verb that can occur as the head of a sentence. In Sam wants to leave, wants is finite, leave is non-finite.
  • all other processes that depend on it will cease
  • Several factors combine to make the problem an urgent one
  • World population
  • demand for energy will also increase
  • coal, oil (petroleum), natural gas, uranium, and fuel wood—is limited and insufficient to sustain rapid rates of development.
  • debate about the exact length of time available before the effects of a worldwide shortage become apparent
  • shortage will occur.
  • geothermal energy, hydroelectric power, peat, ocean thermal energy, solar energy, tidal energy, wind power, and fuel wood.
  • replenish themselves naturally in a relatively short time and will therefore always be available.
  • Renewable energy resources
  • indirectly responsible for many other renewable energy sources.
  • ocean currents and winds are results of the uneven distribution of solar radiation over the Earth's surface
  • winds in turn produce waves whose energy can be utilized
  • windmills and wind power
  • ocean thermal energy, solar heating of the upper layers of the ocean produces temperature gradients that can be harnessed to generate electricity
  • Sun also powers the hydrologic cycle, in which ocean water is evaporated, transported over the continents, and precipitated as rain or snow to form rivers
  • flow energy produces hydroelectric power.
  • energy locked in such renewable fuel sources as wood and peat is derived from the Sun by the process of photosynthesis.
  • renewable energy source is geothermal energy
  • arises through the leakage of heat from the Earth's interior to the surface
  • over the entire surface of the Earth at a very low average rate, leakage is much higher in certain locations.
  • Yellowstone National Park
  • Iceland, Italy, and New Zealand.
  • possible to tap the heat and use it for human purposes.
  • Nonrenewable resources originate from two processes: (1) photosynthesis, which occurred many millions of years ago, followed by the fossilization of the plant and animal life that resulted, and (2) the formation of the Earth itself.
  • fossil fuels—coal, oil (petroleum), and natural gas;
  • produced the fuels for nuclear energy, such as uranium for fission and lighter elements for fusion
  • irreplaceable fuels represent an energy capital that must be invested wisely.
  • A cleaner-burning fuel than oil, natural gas seemed to be in abundant supply at the turn of the 21st century and, with the greatly enlarged network of gas pipelines, was rapidly growing in use.
  • nearly total dependence on fossil fuels and hydroelectricity ensures that efforts to solve energy problems by switching to alternative sources will have to overcome a great deal of inertia, both economic and psychological.
  • sources as solar power, wind power, and synthetic fuels suffer from the serious drawback that few major installations now exist.
  • handicapped by the engineering problems of converting the energy to a form useful to human beings.
  • solar energy reaches the top of the atmosphere in amounts 10,000 times greater than all human production of energy, it reaches the Earth's surface at rates of only about 80 to 250 W/m2, and considerably less on cloudy days.
  • arge-scale system based on solar-collector panels will be physically huge, causing problems of maintenance and land use
  • Wind power, wave power, and ocean-thermal-generation sources suffer from similar difficulties
    • Kate L
       
      Even though there are some difficulties with working towards the alternative fuels, it may prove to be more efficient for smaller things (heat and power to small communities or single buildings) in the long run
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    Energy Problem
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
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