Forests of the continental U.S. continue to fragment
...tation refers to both the amount of forest and its spatial pattern," said Riitters, who is deputy project lea...orest has increased in some areas of the U.S., the spatial patterns indicate extensive fragmentation." The study found that overall, 43.5 percent of U.S. fore...Scientists crack the black box of coastal ecosystems
...CO scientists are beginning to "visualize" the 3-D spatial and temporal variability of coastal life and to te...agement, especially as the trend continues towards spatial management and coastal zoning. "One of the biggest fears about marine reserves is that they would cl...From da Vinci to Monet: Understanding how artists can manipulate the human visual system
... the fact that her smile is almost entirely in low spatial frequencies, and so is seen best by your peripheral vision," according to Livingstone. da Vinci used the shadows from her cheekbones to accentuate the Mona Lisa's mouth, so her smile appears more pronounced when one looks at her eyes or the backgroun...New research tools are opening the 'black box' of coastal ecosystems
...from? We need to know because the current trend is spatial management--that is, drawing lines across the ocea... Remote ocean sensing, in real time, over short spatial and temporal scales, is helping scientists chart the dynamics of ocean environments at scales as sma...Leatherback sea turtles careening towards extinction
...nology to other longlining nations, 2) Examine the spatial and temporal distribution of turtles and fishermen internationally to determine the potential for time or space closures to reduce bycatch, and implement these measures accordingly and 3) Consider trade or market-based approaches to reduce imports of...Researchers will no longer be 'snowed' in predicting future avalanches
...d sites. The researchers will collect data on how spatial patterns of snow change through time, looking at patterns of weak layer thickness, strength and microstructural change. "In addition to our measurements with the SnowMicroPen, which will provide detailed microstructural information about the snowpack...X-Rays yield mechanism of Alzheimer's drug
...terns. They then built a molecular map showing the spatial arrangement of all the atoms of AChE and rivastigmine. Using these maps, the scientists found why the inhibition of AChE by the drug is nearly irreversible: after binding to AChE, rivastigmine breaks in two and moves some of AChEs atoms, making it...New findings could lead to higher resolution functional MRIs
...There is no doubt that any method that can improve spatial resolution will help scientists better understand ...n on the early dip could substantially improve the spatial resolution of fMRI." The researchers point to specific challenges that must be resolved before the ...Pennsylvania chemist wins national award for drug research
...idges called lactams that locked in the molecules' spatial geometry and made them less digestible to the body's enzymes. "The peptide community conferred a rare honor on Roger when the term 'Freidinger lactams' was introduced into the literature," wrote a colleague in nominating him for the award. Since then...Johns Hopkins scientists create forgetful mouse
...n cells that they've found is required for storing spatial memories. Unlike regular mice, the engineered rode...t they'd learned even after 24 hours. "Rodents' spatial learning and memory is highly developed because they must navigate a complex environment in their na...Neural development in time and space
...l these factors had been implicated earlier in the spatial control of neural fate determination. "Identifying...opment and further indicates that the temporal and spatial control of neuronal differentiation must be tightly linked. It is important to stress, however, that...Oxygen deficiency is an endocrine disruptor in fish
...tilizers and sewage discharges. "The severity and spatial scale of hypoxia have increased in the last few de...s far more serious than any chemicals, in terms of spatial scales and natural populations potentially affected," Wu says....Scientists find evidence for crucial root in the history of plant evolution
...ientists to analyze fossils without altering their spatial context, could provide paleontologists a way to an...rs have transformed some of this material, but its spatial context has never changed," Cody says. Normal analytical methods require dissolving the rock matrix ...Wild ape population undergoing 'catastrophic' decline
...ely accepted statistical techniques to compare the spatial distribution of nests found in the new surveys to the spatial distribution of nests reported in the earlier studies. As an example of the decline, Walsh cited a s...Good News: Cognitive decline after bypass surgery mostly temporary and reversible
...cluded measures of attention, learning and memory, spatial abilities and speed of processing. All tests were given to patients when they were diagnosed with coronary artery disease to establish a baseline. The tests were given again at three months and 12 months after they were initially tested, and the r...Body clocks keep migrating monarchs on course, Science study shows
...unctions to keep time, but also how time regulates spatial information," he said. "Increasing knowledge of the genetic makeup of the monarch circadian clock will help tease apart the entire migratory process, a process that remains one of the great mysteries of biology." Research in other animals has been tu...UT Southwestern researchers find immune system stages for eliminating viral infections, cancer cells
...he part of each cell primarily responsible for the spatial organization of its components) during target cell killing in comparison to that of cytotoxic T cells. Both of these immune system cells release toxic molecules through a highly regulated process controlled by receptors attached to them. The cells, h...Researchers view protein's structural changes in real time
... current work is 50 times better, and the improved spatial resolution shows even subtle changes in the protein structure, thanks, in part, to improvements in the X-ray source developed by Michael Wulff at the ESRF in Grenoble, France....Seven CD-ROM global GIS data set available from AGI
...s can work together to facilitate access to global spatial data sets and easy-to-use GIS tools, and also provide a global perspective on Earth science issues," said Barb Ryan, USGS Associate Director for Geography. "Such a global perspective is a natural progression from the national perspective provided by ......omic variables are important factors in explaining spatial patterns in plant diversity and soil-nutrient status, the scientists found. In general, average plant diversity was similar between desert and urban sites, although the total number of plant genera and the variation in composition from site to site ...