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| :: | Molecules |
Top Stories | February 9
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Experiments use positive and negative forces to control ice formation at temperatures well below the normal freezing point.
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Chemistry, not force, leads to fluid flow, mixes solution.
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Isotope catcher could safely store waste from power plants.
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Scientists create a new material that is strong, soft and self-healing.
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A deep-sea gastropod’s natural shield may offer ideas for human protection.
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More in Molecules
A deep-sea gastropod’s natural shield may offer ideas for human protection.Food and Drug Administration officials “say they are powerless to regulate BPA” because of a quirk in their rules, according to a story that ran Sunday in the Milwaukee Journal Sentinel. It comes from a reporter who has made an award-winning habit of documenting the politics that have helped make the hormone-mimicking bisphenol-A a chemical of choice for many manufacturers. Scientists have detected an elusive, complex symmetry in the frequencies of resonating particles “Finally, we sealed the deal. And it is a real deal,” said United Nations Secretary General Ban ki-Moon this morning at an 11:15 press briefing. He was referring to a new climate accord – one aimed at reducing global greenhouse-gas emissions and setting up a green trust fund for mitigation and adaptation programs in the world’s poorest countries, ones that are already being hammered by a changing climate. New bond in the basement Basements house hidden treasures — including a chemical bond never before seen in living things. Scientists have discovered that collagen fibers in the basement membrane — a tough, structural layer of cells that surrounds most tissues in animals — are connected by a sulfur-nitrogen bond (SN: 9/26/09, p. 5). Basement membranes anchor cells, provide a framework for developing tissues and blood vessels, and help regulate cell behavior and signaling. The discovery could help researchers understand collagen-related diseases and could lead to new tricks for at... |
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Science News
Scientists have detected an elusive, complex symmetry in the frequencies of resonating particles1|30 Issue Links |
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