Lead (Pb) is a heavy metal which is distributed in the environment. Humans may get exposed to lead due to food‚ water contamination and air pollution caused by industrial emission [4]. As a neurotoxic agent‚ lead has been known to cause damage in the nervous system. The developing central nervous system (CNS) is far more vulnerable to lead’s toxic effects than the mature brain [40]. Learning and memory impairments in experimental animals exposed to lead during embryonic and gestational stages have
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Prevention of Smoking in Adolescents A man named Bryan‚ who lived in St. Petersburg‚ Florida‚ started smoking when he was 13 years old. Throughout his high school years‚ he smoked about twenty cigarettes a day with no problem. At age 33‚ he was diagnosed with lung cancer and died six weeks later. He left behind a wife and a three year old son (Landry). Each day‚ nearly six thousand children under the age of eighteen start smoking; of these six thousand‚ two thousand will become regular smokers
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Carbon-14 Dating: an Invaluable Yardstick in the Chronology of Humans Archeologists use many methods to analyze data from the past. One scientific tool they use is to analyze the radioactive decay of chemical elements found in plant and animal remains‚ pottery‚ and even in rocks. Radiocarbon dating‚ also known as carbon-14 dating‚ has been one of the most important radioisotope dating methods used. This scientific tool‚ which was first developed by Willard F. Libby in the late 1940s‚ has significantly
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The Blood Bankers’ Legal Handbook The Blood Bankers’ Legal Handbook The Blood Bankers’ Legal Handbook The Blood Bankers’ Legal Handbook ’ Legal Handbook By M.L Sarin Senior Advocate Honorary Legal Adviser to The Indian Society of Blood Transfusion and Immunohaematology And The Blood Bank Society‚ Chandigarh Assisted by Harpreet Singh Giani Advocate March 2003 Dedicated to Mrs. Kanta Saroop Krishen A pioneer in the field of Voluntary Blood Donation in
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INDEX SL.NO. | CONTENTS | PAGE NO: | 1. | INTRODUCTION | 1-2 | 2. | LEAD | 3 | 3. | PREPARATIONS OF LEAD | 4-6 | 4. | LEAD POISONING | 7 | 5. | SOURCES OF LEAD | 8-9 | 6. | WHY LEAD IS HARMFUL? | 10 | 7. | ABSORPTION‚DISTRIBUTION AND ELIMINATION | 11 | 8. | RISK FACTORS | 12 | 9 | SIGNS AND SYMPTOMS | 13-17 | 10. | FATAL DOSE AND FATAL PERIOD | 18 | 11. | COMPLICATIONS | 19 | 12. | TESTS AND DIAGONOSIS | 20 | 13. | TREATMENT AND DRUGS | 21-22 | 14. | POST MORTEM APPEARANCE
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included the cigarette components like nicotine and how many percent of it in a tobacco. The reasons why people smoke cigarette is also in this paper. By reading this paper‚ a person can gain knowledge about the effects of smoking cigarette. So when a person reads this especially those who smoke‚ he or she may quit or lessen smoking because he or she will know the bad effects of cigarette smoking. Discussion Cigarette Smoking Smoking is a highly addictive trend in 21st century America
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Lead and The Environment Some materials are so commonplace that we take them for granted. One of those materials is a grayish metal that has been with us for thousands of years. That metal is lead‚ still one of the world’s most useful substances‚ and one that never ceases to find a role in human society. Lead has the atomic symbol of Pb (for plumbum‚ lead in Latin). The atomic number for lead is 82 and the atomic mass is 207.19 AMU. It melts at about 327.502 oC and boils at 1740 oC. Lead
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Revision Essay Smoking Smoking is one of a new disease that affects most of the society. These days smoking has spread by a large while everyone know that it doesn’t affect the smokers only‚ but the nonsmokers also which called passive smoking or secondhand smoking. Such as people who are sitting near the smokers who are breathing the smoke‚ the baby of the smoker pregnant woman and the pregnant woman who are not smoking. There are many researches which can help us to know what are the smoking effects
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Cigarette smoking is one of the most powerful addictions known. Since its large-scale industrial production early in this century‚ the popularity of cigarettes is spreading like wildfire. It is seen in so many movies today. An actor lights up a cigarette on screen going about their lives. Usually certain people wouldn ’t stop to think twice about it because it has become something we are used to seeing almost every day. But how is seeing all of these smoking advertisements going to affect teenagers
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Harmful Effects Of Smoking Smoking isn’t good for one’s body. Especially if you’ve been smoking a pack a day‚ and for a long period of time. But what is the full extent of the effects of smoking on your body? The effects of smoking varies from person to person as it will depend on the person’s vulnerability to the chemical in cigarette or tobacco smoke. It will also depend on the number of cigarette sticks a person smokes per day‚ the age when the person first started to smoke‚ and the number of
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