Tag: "movement" at biology news
NIH awards new $14.5 million, five-year grant to the Scripps Research Institute
...tion's medical research capabilities and speed the movement
of research discoveries from the bench to the beds...mall but measurable induced voltages caused by the movement
of atomic nuclei in the NMR as they go in and out of resonance. The spectrum is influenced by the sh...
Stanford researchers establish center for physics-based simulations of biological structures
...dynamics, which must be understood to better treat movement
disorders resulting from cerebral palsy, stroke and Parkinson's disease (Scott Delp); and cardiovascular dynamics, which has important implications for coronary artery and peripheral vascular disease (Chris Zarins). Addressing these problems "makes ...
Plants provide model for new shape-changing materials
...aterials. In biology, nastic refers to the natural movement
of plants in response to changes in their environment, such as plants that track the sunlight or that stiffen when watered. These movements are caused by changes in the water pressure inside the plant and can result in very large changes in shape. T...
Why do African-American women have more pregnancy problems?
...tion's medical research capabilities and speed the movement
of research discoveries from the laboratory bench to the bedside. While compliance with traditional prenatal care among black women has improved in recent years, it still lags behind white women: 75 percent of black women seek prenatal care vs. 89 pe...
FSU scientist links iron imbalance to Parkinson's disease
...nson's disease, a degenerative condition affecting movement
and balance in more than 1 million Americans each year. But excessive iron levels are worse -- much worse. The findings from a study by Florida State University scientist Cathy Levenson are described in "The Role of Dietary Iron Restrictions in a ...
Study in Royal Society journals presents evidence for inherited factors in homosexuality
... and Professor A Hill This work is a study of the movement
of fluids (like water) through molecular-sized channels by osmosis. Using a Molecular Dynamics simulation, fluid molecules and a pore are modelled on a computer and set in motion according to the laws of dynamics. The results indicate that osmosis in...
Laboratory test of evolutionary theory confirms importance of links between populations
...and fauna in the wild. The theory predicts how the movement
of individuals between different populations of a species influences evolutionary change in those populations, particularly with respect to coevolutionary interactions between species. This is an important issue in understanding the long-term effect...
Experimental drug prevents vaginal simian HIV transmission in monkeys Science study says
... messenger protein or "chemokine" that induces the movement
of human cells and is well known for its antiviral properties. The new molecule shows more potent antiviral activity than earlier versions produced by the same group and much greater potency than the natural protein. PSC-RANTES seems to have blocked ...
Time-lapse movies show brain cells move like a two-stroke engine
...s to the brain's cerebellar cortex, which controls movement
and balance, continues until a child reaches the a.... "These results also suggest that the coordinated movement
of the centrosome and the nucleus are necessary for migration." "As many signaling pathways in the y...
Scientists explain how morphogens work
...to transduce Dpp signaling, but does not block Dpp movement
across cells. This experiment allowed researchers to distinguish the role of endocytosis in Dpp signaling activity from Dpp movement, providing evidence that endocytosis is not required for Dpp morphogen movement, albeit it is essential for it...
Study is looking at ways to help stroke survivors regain lost motor skills
...s stroke survivors suffering impaired hand or arm movement
who underwent physical rehabilitation accompanied by motor cortex stimulation showed greater improvement than participants who received physical rehabilitation alone. Twenty-four subjects participated in the feasibility study, 12 in the electrical ...
Pesticides may promote Parkinson's disease and exercise may offer protection
...he death of the cells implicated in the control of movement
by interfering with the programmed cell death process." Przedborski intends to confirm this role for the COX-2 protein by investigating whether the intensity of cell death increases in mice that possess an excess of COX-2 protein. "Understanding how...
Psychologist finds instance where 'two wrongs do make a right'
...peared was offset by the opposing 'wrong' pointing movement
that was based on the body's distorted sense of its own position. As a result, the 'right' pointing movements are made in spite of an inaccurate sense of the visual scene," Dassonville explains. While we still lack a complete picture of how the brain...
Clues to the puzzle of 'talking' root cells
...t. "Until now, our hypothesis that there was movement
of the Short-Root protein between cells was based ...r, very little was known about how or whether this movement
was controlled." The scientists theorized that the protein moved from cell to cell through cha...
Stimulating nerve cells with laser precision
...uestioned whether they could accurately detect the movement
through the brain of an electrical impulse from a nerve cell. Konrad suggested using light to trace the activity, and Mahadevan-Jansen thought of using laser light to stimulate nerves and to actually generate this activity. Vanderbilt's W.M...
Evidence that learning is consolidated during sleep
...e, sleep consists of two major stages -- rapid eye movement
(REM) sleep and non rapid eye movement
(NREM) sleep. Evidence from animal studies of learning and sleep indicated that spatial memories see...
Research to explore revolutionary gene sequencing: Threading the molecular needle
... bonds. The AFM tip bonds to the "bead" and by its movement
rapidly pulls first the "wire" and then the DNA molecule through the ring. If Lindsay's proposed sequencing method can be made towork, it would be remarkably faster and more accurate than current sequencing technology. ...
Hurricane Ivan helps student study sinkholes
... innovative technique to characterize ground water movement
in sinkholes. His goal is to recommend management ..." Karst is a term used for a landscape where water movement
is underground because of the voids in the bedrock. Schwartz is using six sinkholes on Virginia Tech...
ORNL project earns top honor from Southeast tech transfer group
...e semiconductor with a low-cost light source. This movement
results in fast and accurate biomolecular separations with unprecedented versatility. The project is a joint effort with Protein Discovery, along with funding from DOE's Office of Biological and Environmental Research. ORNL researchers worki...
Researchers discover transport molecule that allows boron into cells
... ions and molecules enter and leave the cell. The movement
of these molecules affects numerous essential cellular functions. Like other nutrients, cells must transport boron across the membrane to control its concentration within the cell. The discovery of NaBC1 may help scientists understand how cells co...
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