Animal Studies Indicate Aging Brain Responsive To Estrogen
...iams' lab had already shown that olderfemale rats' spatial memory is improved by estrogens administered in a ...nthe rats' hippocampus, a brain region involved in spatial memory. The scientists'study of single neurons revealed that the rats exposed to acute estrogentreat...Early Tests Indicate Motor Skills Unharmed In Consumers Of Tainted Fish
...bjects' memory, executive functions, and visualand spatial abilities. PCBs and DDE have been the most commonly occurring contaminants in theGreat Lakes. While their levels have dropped dramatically since 1970, theyremain unacceptably high, according to health officials, who continue toissue advisories on fi...Insights Into The Proteasome - A Fascinating Macromolecular Machine For Protein Degradation
...ut also a hazard. It must be subject to precise spatial and temporal control to prevent that proteins not destined for degradation are attacked. A basic strategy in controlling protein degradation is compartmentalization, that is sequestration of proteolytic action from the environment. Many p...DFG To Fund Six New Research Units
...t and how does newly acquired knowledgeguide their spatial action? This is the question that neurobiologists ...etical basis. Clinical studies, an analysis of the spatial perception of humans, monkeysand bats as well as complementary theoretical studies will try to expla...First TableTop Source Of Concentrated X-Rays Built
...as 2nm. The shorter thewavelength, the higher the spatial resolution of the beam. Another benefit of this new device is that the X-ray pulse duration is extremelyshort, enabling high temporal resolution imaging as well. In other words, theX-rays can be used as the world's fastest strobe light, making anyth...Mouse Model Of Down Syndrome Offers Glimpse Into Role Of Specific Genes In TheDisorder
...eady, the researchers have beenable to improve the spatial learning deficits in the mice with training. Inmice in the older, Ts65Dn model, the researchers succeeded in reversingneurodegeneration of one form of neuron with the use of nerve growth factor."We have a ways to go," said Epstein, a professor of pe...DFG To Set Up 14 New Collaborative Research Centres
...ractions interms of their energetics, dynamics and spatial alignment with the help of simple modelsystems and to describe them in terms of suitable models is the objective of a newcollaborative research centre named "Collective molecular organisational processes inchemistry. Development, structure, dynamics ...Williams Syndrome: New UD Study May Shed Light On Rare Genetic Disorder-And Normal Development
...s and often-extraordinary verbal skills but severe spatial deficits, anda new University of Delaware study ma...e striking discrepancy is that betweenlanguage and spatial skills: Their language is, in many ways, quite normal, butthey show profound deficiencies in certain...As The City Goes, So Goes The World: Symposium At ESA Meeting To Examine The Ecology Of Cities
...vironmental change with particular attention onthe spatial organization of cities. Mark McDonnell of the Australian ResearchCenter for Urban Ecology will discuss the opportunities and challenges ofconducting ecological research in urban areas and present a theoreticalframework for addressing ecological ques...Soil Variation Important In Natural Plant Communities
...e of disturbance would haveimportant influences on spatial patterns in soil. Clearcuts and simulated barkbeetle outbreaks in mid-successional pine forests confirmed these predictions,Jones says. "Clear cuts result in massive surface soil disturbance while beetleoutbreaks simply add more litter to the top of ......nditions; * the use of GIS software to analyze the spatial distribution of various diseases to determine if patterns exist and if those patterns are correlated with factors in the physical environment; and, * the geographical analysis of population data with site information to determine if inequities exist.......The apoE4 mice performed poorly in tests requiring spatial learning andmemory skills and were less likely to ...e that tests their ability to remember and process spatial information.Similar skills are strongly affected in Alzheimer's patients, who often get lostbecause ......d language acquisition and other abilities such as spatial andnon-verbal skills. The study, which was published in the journal "Nature Neuroscience,"reaffirmed known gender differences in language delay: more boys than girlshave this problem. Analysis of data indicated that parents are not treatin...Dinosaur Tooth Enamel: A Key To Investigating Ancient Climate On Land
... of the tooth while at the same timeincreasing the spatial resolution of samples, something that could notbe done previously. By its nature, climate research utilizing oxygen in toothenamel is intimately associated with the animals themselves, wherethey lived, what they ate, and how their bodies functio...Williams Syndrome: UD Research Pinpoints Language And Learning Traits Of Those With The Disorder
...ly affected by their cognitive deficits related to spatial events. And, studies of eye movement among William...ov. 20 in Dallas, Texas, suggest that some of this spatial deficitmay result, at least in part, from "their tendency to allocate attention tosmaller regions of...... signs arevery similar in hand shape, movement and spatial location to the sign pig inAmerican Sign Language, and would be distinct to skilled signer. Comparableerrors in English might be saying oyster instead of lobster or plane instead oftrain. This type of error suggests that the supramarginal gyrus may b...Growing Up On Their Own: Smart Plastics Organize Themselves Into Useful Optical Devices
...ingcolors. That's because the materials exhibit -- spatial periodicity, -- asought-after characteristic that refers to their high degree of order and theiroptical properties. The structures themselves don't appear extraordinary; they're simplythin films that coat glass slides. But they do hint at the...Wolf Prize In Medicine Awarded To Kandel, Columbia's Pioneer Of Memory Research
...s such as the sea snail to more complex learningof spatial tasks in mammals, Professor Kandel has begun to study behavior ingenetically modified mice. The work has demonstrated that long-term changes inthe synapses of the hippocampus, the part of the brain believed to beresponsible for memory formation, are...New Clues To Evolution Of Human Brain
... where the human brainstockpiles information about spatial relationships for short-term use. It was not where... located in the same place asin monkeys; memory of spatial relationships was thought to be stored in the tophalf of the frontal cortex and memory of objects wa......ed in a biologicallymeaningful way, snakes exhibit spatial learning that rivals thelearning abilities of bird... hippocampus, a brain region involved inmemory and spatial learning. New neurons grow in other animals aswell: Learning to store food engenders brain growth in...