Tag: "movements" at biology news
Unraveling a protein, researchers uncover mechanics of anti-cancer agent
...ntelligent fabric. It connects cells, guides their movements
and communication, and acts as glue between cells in living tissue, strengthening when needed." The matrix is made of several types of proteins, not just fibronectin. Each has a distinctive chemical composition and structure. The proteins are like kn...
Scientists discover how brain draws and re-draws picture of world
... we learn to almost automatically complete complex movements
-- like how to lift a cup and tip it so the liquid...enter. At first, the resistance pushed subjects' movements
aside. With practice, most groups of subjects were able to reach the target in a more-or-less straig...
Brain's 'master molecule' produces same behavior in mice from three different psychostimulant drugs
...cs. Schizophrenia-like symptoms such as repetitive movements
and sensory perception defects induced by the psychotomimetics were strongly attenuated in two of the three different mutant mouse lines, implicating a critical involvement of two distinct, but interacting, phosphorylation sites of DARPP-32 in the ac...
Plants' circadian clocks tune into latitude to enhance fitness
... parts of the earth. The researchers analyzed leaf movements
and measured the period of time it took the leaves to complete one circadian cycle, noted the time of day when the leaves were pointing straight upward, and calculated the distance the leaves moved during a cycle. All three measurements showed consid...
Gene controls age at onset of Alzheimer's and Parkinson's diseases
...by tremors, stiffness of the limbs and trunk, slow movements
and a lack of balance -- afflicts approximately 50,000 Americans each year. Both are complex disorders involving multiple genes. "Although physicians generally consider Alzheimer and Parkinson diseases to be distinct disorders, the two exhibit a lot ...
Hand-to-ear link in brain established after minutes of piano learning
...ooking at your fingers. A brain map linking finger movements
with particular notes begins to form within minutes of starting training, according to research published this week in BMC Neuroscience. Recent brain imaging studies of professional musicians have demonstrated that silent tapping of musical phrases ...
Relatives of Parkinson's patients have higher risk for action tremor
... Action tremor, the condition where goal-directed movements
produce shaking in the moving body parts, most noticeably in the hands, is more apt to occur in first degree relatives of people with certain types of Parkinson's disease than in the population as a whole, according to a study published in the Octobe...
Nerve disorder in mice and men linked to mutated gene
...of mental retardation, uncontrollable head and eye movements
and difficulty speaking or walking. Now, in a discovery that reinforces the importance of the mouse to human genetics, scientists at the University of Michigan Medical School have discovered two mutations in a gene called ATCAY, which appear to be re...
How genes orchestrate facial expressions
...nerve impulses to muscles that control outward eye movements
the left eye looking left and the right eye looki...ontrol muscles responsible for some eye and facial movements
and prevent such nerves from developing in the wrong part of the hindbrain. "We're beginning to ou...
Huge iceberg wreaks havoc on Antarctic marine ecosystem, study finds
... Kevin Arrigo and Gert L. van Dijken monitored the movements
of a giant iceberg named "C-19," which calved off the western face of the Ross Ice Shelf in May 2002. C-19 is one of the largest icebergs ever recorded -- 19.2 miles wide and 124 miles long, or nearly twice as big as Rhode Island. Arrigo is an assis...
Mark your calendar for the American Anthropological Association meeting in Chicago Nov. 19-23
...es has made this one of the most successful social movements
in our time. But the global order presents new challenges. The Special Rapporteur to the UN will present his visions for the future. (Saturday 1.45-3.30 p.m.) Corporate Ethnography in the New Economy. Wall Street and the financial services industr...
JCI Table of Contents, September 15, 2003
...g tremor, muscle stiffness, and unstable voluntary movements
and posture. The main pathological feature of the Parkinson brain is the loss of dopaminergic neurons. Reported in an article in the September 15 issue of the Journal of Clinical Investigation, Przedborski and colleagues administered the neurotoxin M...
Fat chance for hosts
... overwhelmed the larvae's ability to control their movements
and they were distributed throughout the water column, much like passive particles. Water temperature had no effect in this setting. "Our study indicates that whether adaptive or fortuitous, parasite transmission is largely controlled by the cerca...
Study shows critical role for steroids in insect embryonic development
...in understanding how steroid hormones control cell movements
and maturation in general. It also has implications for agrochemical companies in the development of effective pesticides. The research, funded by the Howard Hughes Medical Institute, was conducted over a two-year period. Findings will be posted on...
Brain patterns the same whether doing or just watching, Queens researcher discovers
...ment. "This helps to explain how we understand the movements
of others," Dr. Flanagan says. "We perceive an act... doing the task. "These results indicate that eye movements
while observing an action task are linked with parts of the neural processes for planning and contro...
Waiter, there's a shark in my soup
... In addition, it's the great white's long-ranging movements
that could take them across national boundaries, w...harks off the coast of South Africa to study their movements
in detail. "White sharks are perfectly fit for very long distance swimming and are known to be capab...
Link between neuronal calcium channel, mutated gene that causes Huntington's disease identified
...iatum. Neurons in this area control emotions, body movements
and several other neurological processes, including addiction. Since the discovery of the huntingtin gene ( Htt ) in 1993, researchers have been searching for what actually causes certain neurons to die in the striatum, leading to the disease. "It...
Science Picksleads, feeds and story seeds (July 2003)
... acoustic telemetry system to continuously monitor movements
of individual white sturgeon in real time. Analyzing fish movements
before, during, and after dredging occurs will provide proof, rather than opinion, to assist decisio...
Researchers use lab cultures to create robotic 'semi-living artist'
... a picture-drawing robot in Perth, Australia whose movements
are controlled by the brain signals of cultured ra...the group developed the first robotic device whose movements
are controlled by a cultured neural network capable of adaptive behavior and learning. They call the...
Rapid movements of living biomolecules visualised
Dutch researcher Chris Molenaar has made the rapid movements
of proteins, DNA and RNA molecules visible in livi...ped a method which makes it possible to follow the movements
of RNA molecules in living cells. The researcher also made the movements
and interactions between pr...
1 2 3 4 5 6 7 8 9 10