[Works of T. Bilikiewicz as an example of influential scientific ideas].
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Our second annual ranking of the 100 Most Powerful People in Healthcare has quite a few surprises. Readers nominated and voted for the people who move and shake the healthcare industry. The 2003 list of the Most Powerful has 52 names absent from last year's ranking, including a new No. 1. Who are they and who are the repeat winners?
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The biological toxicity of pentachlorophenol sodium (Na-PCP), a typical kind of aquatic organic pollutants, was tested with the MICROTOX system using luminescent bacteria with the influence of several factors taken into consideration. The EC50 of Na-PCP increases with the increasing of the pH and hardness of the sample. The EC50 (15 min) of Na-PCP is approximately equal to its EC50 (20 min). Compared with some common organic pollutants, which exhibit little influence on the toxicity of Na-PCP when mixed, Na-PCP is more toxic. A reduction of 14% in relative luminescent rate was observed in the experiment with a natural sample. The natural sample exhibits similar influence on the toxicity of Na-PCP similarly compared with unionized water.
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Every year, one million youths begin to smoke cigarettes. Authorities agree the best approach to adolescent smoking is prevention. However, before nurses can implement any preventive efforts, they must understand the factors that influence adolescent smoking. Recent research indicates that a combination of biological, psychological, and social factors are necessary for the initiation of smoking. Preventive programs that reduce the rate of smoking have combined these factors and have aimed to increase the personal and social skills of adolescents. Nurses who work with adolescents and their families can and should incorporate this information into their practices.
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