PCC STEM's Posts

Many European countries have passed anti-smoking legislation which bans smoking from restaurants, bars and public buildings. After implementation of such a smoking ban on 1 January 2008 in the metropolitan area of Bremen in northwest Germany (800,000 inhabitants) a 16% decline in ST-elevation myocardial infarction (STEMI) was observed. STEMI is the severest form of myocardial infarction.
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Scientists have developed a rapid-scanning microscope with no loss of quality.
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Children who are overweight or obese face an increased risk for gallstones, according to a new study.
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Children drinking from around half the UK’s private water supplies are almost five times more likely to pick up stomach infections – according to new research.
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Mexican-Americans with an ancestral link to Amerindian tribes were found to have higher insulin resistance levels, which is an indication of several chronic conditions such as Type 2 diabetes, according to new research.
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Eating right and exercising hard in space helps protect International Space Station astronauts' bones, a finding that may help solve one of the key problems facing future explorers heading beyond low Earth orbit.
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Biomedical engineers have outlined how a new type of non-invasive brain scan taken immediately after a seizure gives additional insight into possible causes and treatments for epilepsy patients. The new findings could specifically benefit millions of people who are unable to control their epilepsy with medication.
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The Department of Homeland Security’s Science and Technology Directorate has scheduled a series of tests in the Boston subways to measure the real-world performance of new sensors recently developed to detect biological agents within minutes.
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Efficient catalysis on chiral surfaces

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(Phys.org)—Practice is when everything works but nobody knows why. This light-hearted saying can equally be applied to chemical processes. "The process of so-called heterogeneous asymmetric catalysis is very easy to use in itself and works extremely well," says Alfons Baiker, an emeritus professor of reaction engineering and catalysis. "Understanding how it works, however, poses a major challenge for research." In a paper just published in the journal Angewandte Chemie, Baiker and his team describe a mechanism that is responsible for converting a non-chiral substrate with over 90% yield into the desired of two possible chiral products, a precursor of vitamin B5.
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Your child goes to bed in perfect health. The next morning she wakes up with high fever, malaise and bright red blisters erupting all over her body. Dermatologists say the disturbing scenario has become quite common in the last few months, sending scared parents to their pediatrician’s office or straight to the emergency room.
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Using a mixture of gold, copper and platinum nanoparticles, IBN researchers have developed a more powerful and longer lasting fuel cell material. This breakthrough was published recently in leading journal, Energy and Environmental Science.
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Humans inherit more than three times as many mutations from their fathers as from their mothers, and mutation rates increase with the father's age but not the mother's, researchers have found in the largest study of human genetic mutations to date.
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