Quantcast

Latest Selenium Stories

2012-07-24 10:16:19

If link proves causal, 1 in 12 of these cancers might be prevented, say researchers Increasing dietary intake of the antioxidant vitamins C, E, and selenium could help cut the risk of developing pancreatic cancer by up to two thirds, suggests research published online in the journal Gut. If the association turns out to be causal, one in 12 of these cancers might be prevented, suggest the researchers, who are leading the Norfolk arm of the European Prospective Investigation of Cancer...

2012-06-21 20:47:37

A coating of selenium nanoparticles significantly reduces the growth of Staphylococcus aureus on polycarbonate, a material common in implanted devices such as catheters and endotracheal tubes, engineers at Brown University report in a new study. Selenium is an inexpensive element that naturally belongs in the body. It is also known to combat bacteria. Still, it had not been tried as an antibiotic coating on a medical device material. In a new study, Brown University engineers report that...

2012-05-15 23:25:25

Beta-carotene, selenium and folic acid — taken up to three times their recommended daily allowance, these supplements are probably harmless. But taken at much higher levels as some supplement manufacturers suggest, these three supplements have now been proven to increase the risk of developing a host of cancers. "It's not that these nutrients are toxic — they're essential and we need them, but we need them in a certain balance," says Tim Byers, MD, MPH, professor of...

Astronomers Find Arsenic And Selenium In Milky Way's Halo
2012-04-30 09:27:50

The Big Bang produced lots of hydrogen and helium and a smidgen of lithium. All heavier elements found on the periodic table have been produced by stars over the last 13.7 billion years. Astronomers analyze starlight to determine the chemical makeup of stars, the origin of the elements, the ages of stars, and the evolution of galaxies and the universe. Now for the first time, astronomers have detected the presence of arsenic and selenium, neighboring elements near the middle of the periodic...

Selenium Impacts Honey Bee Behavior And Survival
2012-04-26 06:48:50

UC Riverside entomologists develop 'proof of concept' that selenium may negatively impact honey bee populations at selenium-polluted sites Entomologists at the University of California, Riverside have a "proof of concept" that selenium, a nonmetal chemical element, can disrupt the foraging behavior and survival of honey bees. Selenium in very low concentrations is necessary for the normal development of insects – and humans – but becomes toxic at only slightly higher...

Liquid-like Materials May Pave Way For New Thermoelectric Devices
2012-03-24 02:49:43

In the continual quest for better thermoelectric materials–which convert heat into electricity and vice versa–researchers have identified a liquid-like compound whose properties give it the potential to be even more efficient than traditional thermoelectrics. Thermoelectric materials have been used to power spacecraft ranging from Apollo to the Curiosity rover now headed for Mars. Recently, however, scientists and engineers have been turning to these materials to use wasted...

2012-03-21 15:36:50

Spanish and Danish researchers have developed a method for the in vivo study of the unknown metabolism of selenium, an essential element for living beings. The technique can help clarify whether or not it possesses the anti-tumor properties that have been attributed to it and yet have not been verified through clinical trials. "It is vox populi that doctors around the world recommend selenium supplements to complement traditional therapy against cancer and the AIDS virus but the truth is...

2012-03-20 16:45:24

University of Granada researchers have proven that eating two servings of salmon reared at a fish farm (enriched with omega-3 fatty acids and only slightly contaminated) a week during pregnancy is beneficial both for the mother and child. This research study —conducted within the framework of a Project funded by the VI EU Framework Program called The Salmon in Pregnancy Study (SiPS)— reveals that the intake of salmon increases omega-3 fatty acid levels both in the mother and...

2012-02-16 14:55:17

Modern technology depends on reliable supplies of a wide variety of materials, but there is increasing concern about the dependability of those supplies. In the first detailed assessment of metal "criticality," a team of undergraduates, master's students and research staff led by Thomas Graedel, the Clifton R. Musser Professor of Industrial Ecology, has codified a methodology that takes into account the risk of future scarcity and potential damage from shortages of metals in the periodic...


Word of the Day
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
Related