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Cancer that forms in the thyroid gland (an organ at the base of the throat that makes hormones that help control heart rate, blood pressure, body temperature, and weight). Four main types of thyroid cancer are papillary, follicular, medullary, and anaplastic thyroid cancer. The four types are based on how the cancer cells look under a microscope.

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

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

More has been published about the extinction of dinosaurs at the K-T boundary than any other group of organisms. Excluding a few controversial claims, it is agreed that all non-avian dinosaurs went extinct at the K-T boundary. The dinosaur fossil record has been interpreted to show both a decline in diversity and no decline in diversity during the last few million years of the Cretaceous, and it may be that the quality of the dinosaur fossil record is simply not good enough to permit researchers to distinguish between the choices.[54] Since there is no evidence that late Maastrichtian nonavian dinosaurs could burrow, swim or dive, they were unable to shelter themselves from the worst parts of any environmental stress that occurred at the K-T boundary. It is possible that small dinosaurs (other than birds) did survive, but they would have been deprived of food as both herbivorous dinosaurs would have found plant material scarce, and carnivores would have quickly found prey to be in short supply.[35] The growing consensus about the endothermy of dinosaurs (see dinosaur physiology) helps to understand their full extinction in contrast with their close relatives, the crocodilians. Cold-blooded crocodiles have very limited needs of food (they can survive several months without eating) while warm-blooded animals of similar size need much more food in order to sustain their faster metabolism. Thus, under the circumstancies of food chain disruption above mentioned, non-avian dinosaurs died [55] while some crocodiles survived. In this context, the survival of other endothermic animals, such as some birds and mammals, could be due, among other

hanksgiving Day is a harvest festival. Traditionally, it is a time to give thanks for the harvest and express gratitude in general. It is a holiday celebrated primarily in Canada and the United States. While perhaps religious in origin, Thanksgiving is now primarily identified as a secular holiday. The date and location of the first Thanksgiving celebration is a topic of modest contention. Though the earliest attested Thanksgiving celebration was on September 8, 1565 in what is now Saint Augustine, Florida[1][2], the traditional "first Thanksgiving" is venerated as having occurred at the site of Plymouth Plantation, in 1621. Today, Thanksgiving is celebrated on the second Monday of October in Canada and on the fourth Thursday of November in the United States. Thanksgiving dinner is held on this day, usually as a gathering of family members and friends.

Most people celebrate by gathering at home with family or friends for a holiday feast. Though the holiday's origins can be traced to harvest festivals which have been celebrated in many cultures since ancient times, the American holiday has religious undertones related to the deliverance of the English settlers by Native Americans after the brutal winter at Plymouth, Massachusetts. The period from Thanksgiving Day to New Year's Day is often called the holiday season.

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.

Album sales dropped for a seventh consecutive year, but a dramatic increase in the sale of digital tracks helped keep the music industry afloat in 2006.

"High School Musical" is the first soundtrack to become the No. 1 album since "Titanic" sold 9.3 million copies in 2002, a feat that should have Disney -- an indie in the recorded music field -- smiling.

aimed at tweens

In August 2007, as part of his installment at the Bienarte 2007 in Managua, Nicaragua, Costa Rican artist Guillermo Habacuc Vargas tied up a stray dog, Natividad, and left it without food or water in the exhibition hall for the duration of the event. Allegedly, the dog later died. Vargas alternatively defended his actions by claiming that the dog would have died anyway, and later that the dog did not die at all. Since the event, several petitions have circulated the Internet, in both English and Spanish, condemning Vargas and urging that the artist be banned from Bienarte 2008.

t is a basic notion that during the 1600's, accurately in the year 1621, the English settlers and the Wampanoag Indians got together and shared a fantastic fall harvest feast to celebrate the bounty from the rich earth. Today this celebratory feast is acknowledged to be one of the first Thanksgiving festivities in the early days of the colonies. While that long ago feast is supposed by a lot of people to be the first Thanksgiving celebration, it was, in fact, part of a long existing custom of celebrating the seasonal harvest and giving thanks for a good bounty of crops that would last through the long hard winter. Many Native American tribes of what would be named America, including the Pueblo, Cherokee, Shawnee, Huron, Creek, Blackfoot and so many others would hold huge harvest festivals, consisting in ceremonial dances, races, games and other cheerful celebrations of gratefulness hundreds of years before the European peoples arrived. If you are like me, you are surely wondering the kind of meals served at the harvest feast. Historians, as usual, are not one hundred percent sure regarding it; however they are sure that pilgrims weren't eating pumpkin pies nor building castle towers with mashed potatoes. However, it is easy to think that the list of meat available during this period of time should surely include venison as well as several types wild poultry such as duck, goose as well as wild turkey. While there are hundreds of manuscripts describing such feast, the most detailed description of this celebration of late harvest date of 1621 and was written by a man called Edward Winslow. It is from his manuscript called "A Journal of the Pilgrims at Plymouth" that historians have gleaned the greatest part of information about this first Thanksgiving celebration:

Although the first Thanksgiving dinners were not concentrated on the turkey; today's usual meal primarily focuses around this animal. During the 17th century, vegetables were not as important as of today, so the meal of this period of time included a lot of different meats. The many types of vegetables we take for granted today were not available to the colonists. Freezing methods did not exist; which means that the vegetable consumption was based on seasonal harvests. Because the colonists and Wampanoag tribe had no refrigeration in the 1600s, they dried a lot of their foods to preserve them. They would dry corn, wild boar hams, fish, venison, and many wild herbs.

In 1621, the Plymouth colonists and Wampanoag Indians shared an autumn harvest feast which is acknowledged today as one of the first Thanksgiving celebrations in the colonies. This harvest meal has become a symbol of cooperation and interaction between English colonists and Native Americans. Although this feast is considered by many to the very first Thanksgiving celebration, it was actually in keeping with a long tradition of celebrating the harvest and giving thanks for a successful bounty of crops. Native American groups throughout the Americas, including the Pueblo, Cherokee, Creek and many others organized harvest festivals, ceremonial dances, and other celebrations of thanks for centuries before the arrival of Europeans in North America. Historians have also recorded other ceremonies of thanks among European settlers in North America, including British colonists in Berkeley Plantation, Virginia. At this site near the Charles River in December of 1619, a group of British settlers led by Captain John Woodlief knelt in prayer and pledged "Thanksgiving" to God for their healthy arrival after a long voyage across the Atlantic. This event has been acknowledged by some scholars and writers as the official first Thanksgiving among European settlers on record. Whether at Plymouth, Berkeley Plantation, or throughout the Americas, celebrations of thanks have held great meaning and importance over time. The legacy of thanks, and particularly of the feast, have survived the centuries as people throughout the United States gather family, friends, and enormous amounts of food for their yearly Thanksgiving meal.

Bela Karolyi, the charismatic coach of the Romanian team and the 1996 US "Magnificent Seven", has been credited with increasing the level of performance while decreasing the average age of the performer.

The standard was younger, shorter, and skinnier.

Kerri Strug's career came to a halt after a long struggle with anorexia. In 1991 15-year-old Olympic hopeful Julissa Gomez died after breaking her neck after a misstep on her vault. A fellow gymnast, 15-year-old Christy Henrich, developed anorexia as she struggled to qualify for the 1992 Olympics in Barcelona. She retired at 18, without a medal, and died last year at 22 weighing less than 50 pounds.