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Johannes Kepler was just twenty-three years old when he became a teacher of mathematics and astronomy at the university in Graz, Austria, in 1594. For the next thirty-five years, his intensive research based on the theories of Nicolaus Copernicus resulted in astonishing new ideas on the physics of the solar system. Most important was his realization that the planets move in elliptical orbits. Kepler's laws greatly influenced the later findings of...
2) Leukemia
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Leukemia is a term that comes from the Greek words for white and blood. It is a group of cancers that usually start in the white blood cells, developing in bone marrow, the blood stream, and the lymphatic system. There are many different kinds; subtypes are named for the white blood cells from which they develop, and are generally divided into lymphoid and myeloid categories. Readers examine the possible causes and types of leukemia, as well as symptoms,...
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In many parts of the world, people can not only smell the air around them, but also see it and even feel it. Air is so thick with pollutants in certain areas that astronauts in space have seen and photographed it without magnification. Smoke does not simply disappear; it lingers in the atmosphere until natural processes eliminate it. One method of natural process is that trees and other plants are structured so that they absorb pollutants. The bad...
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Students learn that internships and volunteer positions can give them a foot in the door for permanent employment in math or science careers. They discover that these opportunities can provide options for sampling different careers and perhaps discover those vocations are not what they anticipated. Intern and volunteer positions are excellent platforms for testing the waters and determining which career will be most satisfactory for their life's work....
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When the environment suffers, so do humans and wildlife. Many green jobs require only high school or one or two years of post-high school studies. For other jobs, special training or four-year or postgraduate degrees are required. Some of the careers that are examined in this enlightening book include environmental engineer, geologist, microbiologist, science technician, conservationist, forester, park ranger, soil scientist, air control technician,...
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A career path devoting to servicing mental health patients is a challenging and rewarding sector of health care. Patients are of all ages, backgrounds, and circumstances. Some suffer from clinical disorders, others from the consequences of traumatic events in their lives or of long-term problems at home, in school, or at work. Careers described in this practical guide include psychiatrist, psychologist, mental health counselor, social worker, counselor...
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Readers interested in pursuing careers in the corrections system will find comprehensive information about the various jobs, responsibilities, and the skills necessary for performing them today, including those of corrections, parole, and probation officers, and bailiffs. The book also provides descriptions of the types of corrections facilities that exist on the local, state, and federal levels, their job requirements, and the future outlook of careers...
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There is nothing like the emotions athletes feel in victory and defeat. Sports coverage provides a similar rush for the media professionals who witness the action and make it real for their audiences. In this volume, readers learn about the exciting careers of sportswriters, announcers, and the dedicated professionals who work away from the public eye, outlining the skills and preparation that these jobs require. Print and broadcast employers need...
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Ibn Battuta, a fourteenth-century Moroccan adventurer and religious scholar, was one of the most ambitious travelers of the Silk Road. Scholars estimate his lifelong journeys covered no fewer than 75,000 miles. Because of his knowledge of Muslim history and laws, he was greatly respected by the Muslim rulers he visited. His geographical records helped fill in the pieces of a mysterious world, a world in which people of different regions knew little...
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Most young drivers have one goal in mind when they think of getting their own vehicle: freedom. Car ownership is one of life's joys as well as one of its major financial investments. This candid volume offers readers a step-by-step approach for how to choose the best car to suit their needs and how best to plan, research, and budget for the purchase. In today's economically challenging times, students require an opportunity to learn about money management...
11) First car smarts
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This is a guide to buying your first car.
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Stress is a chemical process and is caused by emotions, but it affects the mood, body, and health. Young people are not immune to stress. Readers will learn that over-scheduling is the leading cause of stress for teen and adult sufferers. This helpful book explores acute and chronic stress, offering detailed information on causes and long-term effects. Students will learn how to spot the warning signs and how to manage and reduce stress.
13) New Medicines
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Medicines unquestionably save lives and improve health and the quality of life. On rare occasions, they also harm and kill those who take them. Lab scientists around the world experiment with new medications to combat illnesses and to relieve pain and stress. Sometimes, even when they are used properly, the medicines' effects are not entirely good. Drugs approved by the U.S. Food and Drug Administration regularly are found to produce unforeseen and...
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The spread of harmful chemicals and biological organisms can injure and kill thousands of people and make an infected area unlivable for some time to come. In the age of modern terrorism, many people fear militant organizations will unleash chemical and biological weapons in public places. This book provides readers with an overview of what these weapons are, who uses them and why, and explains how much of a threat they are to our way of life. Over...
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Since Al Gore's departure from public office in 2001, the former vice president of the United States, senator, and congressman has devoted much of his time to warning the world of alarming climate changes. The message is highly disturbing, but Gore delivers it in his patient southern drawl, assuring audiences that the problem is not beyond solution. His award-winning efforts have helped focus growing attention on global warming. In the process, they...
16) Turkey
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The modern Republic of Turkey, which emerged from the ruins of the Ottoman Empire after World War I, is unusual among the nations of the Middle East. It is a democracy in a region where most rulers are autocrats. It is a Muslim country that enforces strict separation between religion and public life. Turkey is also among the most western-aligned states in the Middle East. It is the only Muslim state to be part of the North Atlantic Treaty Organization...
17) Hallucinogens
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A hallucinogen can change the way a person sees and interprets reality. There are two types of hallucinogens: natural and synthetic. Natural hallucinogens include some types of mushrooms and peyote, and marijuana. Synthetic hallucinogens include LSD, PCP, and so-called designer drugs such as MDMA (ecstasy). Readers learn about the reasons people use hallucinogens, about the effects on the brain and body, and about abuse, treatment, and recovery. Drug...
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Alcohol is the most commonly used and abused drug among teens in the U.S. Young people who binge drink are more likely to experience academic and social problems, physical illnesses, risky sexual activity, car crashes, and accidental injuries. Alcohol poisoning, which can cause unconsciousness or even death, brings many underage drinkers to the emergency room each year. This book explains the health problem clearly and arms teens to make smart choices...
19) First job smarts
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An introduction to employment for teenagers that discusses basic requirements, earning, full-time, part-time, and seasonal positions, taxes, and other related topics.
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From Native American traditions to flights in outer space, the states of the Lower Atlantic region have made important contributions to the nation. This region is renowned for its mild climate and alluring beaches. It also is famous for its agricultural products, especially citrus fruits. In modern times, Florida, Georgia, and South Carolina have attracted an astonishing assortment of new industries, as well as millions of tourists from all over the...
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