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Tucson AZ - Apr 08, 2004Next time an asteroid or comet is on a collision course with Earth you can go to a web site to find out if you have time to finish lunch or need to jump in the car and DRIVE. Possible Answer To Earth's Magnetic Field Reversal 
Arlington VA - Apr 08, 2004Earth's magnetic field reverses every few thousand years at low latitudes and every 10,000 years at high latitudes, a geologist funded by the National Science Foundation (NSF) has concluded. Brad Clement of Florida International University published his findings in this week's issue of the journal Nature. The results are a major step forward in scientists' understanding of how Earth's magnetic field works. |
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Ice Melt May Dry Out US West Coast
London - Apr 08, 2004By mid century cities and towns along the American west coast could be suffering serious water shortages in response to climate change. As Arctic sea-ice melts, annual rainfall is forecast to drop by as much as 30 per cent from Seattle to Los Angeles, and inland as far as the Rocky Mountains reports New Scientist. Climate: Europe Tries Carbon Trading 
Boulder - Apr 05, 2004The nations of the European Union last week began to submit their plans for carbon trading to try to reach emissions limits set by the Kyoto agreement on global climate change -- even though the future of that agreement is much in doubt. Astronomers Take Search For Earth-Threatening Space Rocks To Southern Skies
by Lori StilesTucson AZ - Apr 07, 2004 The hunt for space rocks on a collision course with Earth has so far been pretty much limited to the Northern Hemisphere. But last week astronomers took the search for Earth-threatening asteroids to southern skies. Wild Insects Can Be Key To Crop Success 
by Charles ChoiNew York (UPI) Apr 06, 2004 Protecting the diversity of wild insects may prove crucial in ensuring and augmenting crop yields, according to new ecological research. Treaty Favors GM Crop Protection 
by Dan WhippleBoulder - Apr 05, 2004 The International Treaty on Plant Genetic Resources for Food and Agriculture, which is to go into effect June 29, is a major effort to ensure the sustainability of global agriculture. The European Union and 12 of its members have ratified the the treaty -- the US signed the pact in 2002. Computer Help "Morph" Deformed Fossils Back to Their Original Shapes 
Buffalo - Apr 07, 2004It's bad enough that fossils, buried deep in layers of rock for thousands or millions of years, may be damaged or missing pieces, but what really challenges paleontologists, according to University at Buffalo researchers, is the amount of deformation that most fossils exhibit. Good Eyes For Living Below Ground 
Frankfurt - Apr 07, 2004Scientists at the Max Planck Institute for Brain Research in Frankfurt, at the University of Duisburg-Essen, and at the Charles University in Prague have now discovered that in contrast to previous assumptions, the eyes of subterranean African mole-rats have a rather well-structured retina with an unusually high proportion of cone photoreceptors. |
Crystal Engineering Helps Scientists Solve 3-D Protein Structures
WASHINGTON - Apr 07, 2004Research aids drug design; Sheds light on plague and other diseases A new technique for engineering protein crystals is helping scientists figure out the three-dimensional structures of some important biological molecules, including a key plague protein whose structure has eluded researchers until now. Walking Under Water: The Journey From Fin to Limb 
Moffett Field - Apr 05, 2004How land-living animals evolved from fish has long been a scientific puzzle. A key missing piece has been knowledge of how the fins of fish transformed into the arms and legs of our ancestors. In this week's issue of the journal Science, paleontologists Neil Shubin and Michael Coates from the University of Chicago and Ted Daeschler from the Academy of Natural Sciences in Philadelphia, describe a remarkable fossil that bridges the gap between fish and amphibian and provides a glimpse of the structure and function changes from fin to limb. East African artifacts support evolution of symbolic thinking in Middle Stone Age 
Tempe - Apr 01, 2004New finds from an open-air archaeological site in the Serengeti National Park in Tanzania have intriguing implications for the evolution of modern human behavior, including further indications that symbolic thinking developed in humans earlier than the currently accepted date of about 35,000 years ago. Molecular Midwives Hold Clues To The Origin Of Life 
Atlanta - Apr 01, 2004Adding a small molecule, dubbed a "molecular midwife," researchers increased the rate of DNA formation in a chemical reaction 1,000 fold over a similar reaction lacking a midwife. Study Clarifies Evolutionary History Of Early Complex Single-Celled Life 
Tysons Corner VA - Mar 27, 2004A billion years ago (the Neoproterozoic age), complex single-celled organisms, the acritarchs, began to develop, grow, and thrive. Almost a billion years later, the study of the evolutionary history of acritarchs began to bog down amid inconsistencies in the reporting of the diversity of species. What Really Makes Us Tick 
Houston - Mar 29, 2004From sleep patterns to health conditions, biological clocks get down to what makes us tick. The University of Houston is home to one of the world's leading centers for biological rhythms research. With five laboratories and a team of more than 30 scholars led by five tenured faculty members, the UH Biological Clocks Program studies an array of issues with far-reaching human implications. |
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