Folate and B12 may influence cognition in seniors
...uch as response speed, sustained attention, visual spatial skills, associative learning, and memory. Cognitive impairment was identified when a subject fell into the bottom 20th percentile of the distribution on the test. "People with normal vitamin B12 status performed better if their serum folate was hi...Climate change only one symptom of a stressed planet Earth
...echnologies and economies, at broader temporal and spatial scales. IGBP research encompasses all of these Earth System components and then synthesizes international, multidisciplinary observations to enhance scientific understanding. "An Earth system perspective is crucial to understanding global environme...News tips from the Journal of Neuroscience
...station for these signals. They asked: what is the spatial reference frame for signals represented in MSTd? The authors used a three-dimensional virtual reality system in which they presented monkeys with visual or vestibular cues separately while recording from individual MSTd neurons. The authors then comp...Soil nutrients shape tropical forests, large-scale study indicates
...ly influenced where certain tree species grew: The spatial distributions of 36 to 51 percent of the tree species showed strong associations with soil nutrient distributions. Prior to the study, the researchers had expected to see some influence of soil nutrients on forest composition, but the results were m...News tips from the Journal of Neuroscience
...s used to estimate blood flow changes, providing a spatial resolution of 23 cm. NIRS measures only small vessels and thus may be less sensitive to systemic circulatory changes than functional magnetic resonance imaging. The stimuli consisted of two pairs of speech sounds or phonemes, in this case Japanese vo......d lead larvae back. "This research shows that the spatial distribution of these aquatic organisms is far from being random despite long larval dispersal stages of several weeks," says Gerlach. "Apparently, these larvae--small as they are--use elaborate sensory mechanisms to orientate and find their way to a...Scientists uncover potential key to brain blood-flow disorders
...ournal of General Physiology that investigated the spatial and temporal characteristics of the calcium signals within astrocytic endfeet, and defined the spatial context of vasoactive signals generated by endfeet. This study utilized the spatially and temporally...Imaging pinpoints brain regions that 'see the future'
..., patterns of activity suggest that the visual and spatial context for our imagined future often is pieced together using our past experiences, including memories of specific body movements and visual perspective changes data stored as we navigated through similar settings in the past. These findings, McDe...ACS News Service Weekly PressPac -- Dec. 20, 2006
...ons, the goal is to study in vivo the temporal and spatial distribution of bacteria in live animals." ARTICLE # 2 FOR IMMEDIATE RELEASE "Optical Imaging of Bacterial Infection in Living Mice Using a Fluorescent Near-Infrared Molecular Probe" DOWNLOAD PDF http://pubs.acs.org/cgi-bin/sample.cgi/jacsat/asap/p...Cellular killer also important to memory
...jected into rat brains interfere with the animals' spatial memory and active avoidance learning. Caspase-3's dual role as a cell killer and memory builder has long intrigued Huesmann, the lead author of the study. "Is it Memory or Is It Death? Caspase-3 and Memory Formation," was his dissertation title. Hues...Watching with intent to repeat ignites key learning area of brain
... the parieto-frontal mirror system in encoding the spatial components of observed actions and the primary motor cortex in the formation of novel motor memories through observation," wrote Frey and research assistant Valerie E. Gerry in their conclusions. "This study is the first in a series of several expe...Sniffers show that humans can track scents, and that two nostrils are better than one
...on from two 'noses' to turn smell information into spatial information," said Noam Sobel, associate professor of neuroscience and psychology and member of the program in biophysics at UC Berkeley. Sobel hopes to use information from these experiments to design scent-tracking robots equipped with his eNose,...Beyond the book: Software automates access to brain atlases
...e indexes the data in a variety of ways, including spatial maps and alphanumeric information, coming off a single interface. It includes all the information in the printed volumes, in a much more accessible form. It does so without violating copyright, Burns said. Publishers of the atlases make available to......etabolite binds to this riboswitch and changes its spatial structure such that the mRNA segments controlling ...tamers are short RNA strands that adopt a specific spatial structure and, like antibodies, selectively bind to specific target molecules. So, why not riboswitc...Satellite radar gauges water levels in Louisiana wetlands
...ng other radar altimeter satellites to improve the spatial resolution of the wetland study. However, the primary limitation for TOPEX/Poseidon is its narrow measurement swath on the ground," Shum said. The satellite gathers data in a strip, up to only 3 miles wide. Shum pointed to the proposed WATER HM (sh...Pittsburgh-based team engineers muscle, bone cell differentiation with aid of ink-jet printer
...of cells differentiate from stem cells and gaining spatial control of stem cell differentiation are important capabilities if researchers are to engineer replacement tissues that might be used in treating disease, trauma or genetic abnormalities," said Lee Weiss, research professor at Carnegie Mellon's Robot...Muscle and bone from an ink-jet printer
...ls differentiate from stem cells, but also gaining spatial control of stem cell differentiation, are important capabilities if researchers are to engineer replacement tissues that might be used in treating disease, trauma, or genetic abnormalities. Spatial patterning of stem cell differentiation through deli...Regulating the nuclear architecture of the cell
...cell and organism through nuclear architecture and spatial rearrangements is known as epigenetics from the Greek for "on, over, or at" the genes, instead of by the DNA sequence. The chromosomal material known as heterochromatin mediates gene silencing, chromosome inheritance, and other processes. Karpen a...Brown and OTS will jointly manage new ILTER network secretariat
... about how ecosystems function across temporal and spatial scales. Educational and public outreach play important roles in all the networks, especially as scientists recognize the critical role of environmental science in sound policy-making at local, regional and global levels. In addition to building a m......chingor not reachingcrops in an irrigation system; spatial distribution of irrigated areas and their cropping intensities; areas affected by droughts and their intensities; and the interaction between the water and the plant in natural vegetation and agricultural areas. Contact: Prasad Thenkabail, Internatio...