controlling 2 9

Tag: "controlling" at biology news

Brain-computer link lets paralyzed patients convert thoughts into actions

... is asked to imagine moving one hand as if he were controlling the computer mouse. The researchers study the data and build filters to convert patterns of neural spikes into two- dimensional commands. "Training patients to move things with their minds is different with each patient," said Maryam Saleh, who wor...

UCSD researchers develop 'smart petri dish'

...led them to produce a photonic crystal, capable of controlling light within the structure analogous to the way that semiconductors transmit electricity through computer chips. By attaching rat liver cells to the polystyrene within the crystals and measuring the scattering of light with a sensitive spectrometer, ...

Researcher gives hard thoughts on soft inheritance

...rse of an organism's life, but their importance in controlling inheritance has been debated. Many biologists are skeptical of any form of soft inheritance, where the genetic material is not constant, believing that it is only genetic information ?DNA -- that can be passed onto generations. Now Eric ...

Researchers appeal for new regulations to save coral reefs from live fish trade

...trade liberalization, is an important strategy for controlling roving bandits. The live fish trade is an increasing pressure on coral reef resources, both in terms of magnitude and geographical spread. The combination of destructive harvesting methods and over-harvesting of large, predatory fish reef fish hav...

Loosen up, DNA: Leukemia gene changes genetic packaging

...the first molecular mechanisms to be identified as controlling chromatin remodeling. Its work resembles that of a criminal mastermind busting a hoodlum out of jail so he can make more mischief. Behind bars, effectively inactive and silenced, the hoodlum ?in this case, a cancer-causing gene causing cells to grow ...

Infected for life

...r genes are known to be an important mechanism for controlling gene expression, this is one of the first miRNA found to be encoded by a viral genome," says Fraser. "Our study helps show how HSV-1 can maintain a latent infection for the lifetime of an infected individual." The LAT gene was discovered by Fraser a...

Proteins as parents

...ments. Titin, a giant molecule, is responsible for controlling the passive tension of our muscles and also pulls them together again after an extension. Depending on the type of muscle, there are differences: The titin found in heart muscle is less tensile than that found in skeletal muscle and it gives the hear...

Taking the wrinkles out of motoneuronal disease

...iseases cause a degeneration of the nerve pathways controlling muscle activity. The diseases are severe and physically debilitating disorders which lead toprogressive weakness and wasting of muscles. Many of the diseases are incurable. Dr Meunier is developing botox to selectively deliver drugs to motoneurons t...

More than drought affecting wheat yields

...trol of volunteer wheat this summer will be key to controlling the wheat curl mite that vectors the disease, Allen said. Rush and Allen believe the Conservation Reserve Program grasses throughout the region also might harbor the wheat curl mite. "We don't have a good understanding of the wheat curl mite and it...

Important gene controlling tree growth and development found

...in his breeding program. The poplar tree FT gene, controlling both the flowering time of trees and the time for growth cessation and bud set in the fall, has been identified by a research group led by professor Ove Nilsson at the Umeå Plant Science Centre (UPSC) and the Swedish University of Agricultural Scienc...

The secret lives of sea slugs

... a starting point to see how the brain is actually controlling it," Wyeth says. ...

Salk scientists untangle steroid hormone signaling in plants

...ang, have allowed us to unravel the nuclear events controlling brassinosteroid responses at the genomic level. This turns our attention to the last mystery: the gap in our understanding of the events between steroid binding at the cell surface and these nuclear mechanisms." ...

Ozone recovering, but unlikely to stabilize at pre-1980 levels, says study

...ang, have allowed us to unravel the nuclear events controlling brassinosteroid responses at the genomic level. This turns our attention to the last mystery: the gap in our understanding of the events between steroid binding at the cell surface and these nuclear mechanisms." ...

Bacteria could make new library of cancer drugs that are too complex to create artificially

...e University of Warwick have looked at the enzymes controlling the process that allows the bacterium Streptomyces coelicolor to create streptorubin B and have gained a clear understanding of which are the key enzymes that act at particular steps of that process. By manipulation of the enzyme content of the bacte...

Air travel and pandemic flu

... how useful restrictions on air travel might be in controlling the spread of a flu virus. Travel restrictions are usually unpopular and could themselves be harmful. If they are not effective, resources could be wasted on enforcing them. Researchers of the Centre for Infections, Health Protection Agency, UK use...

New mechanism explains glucose effect on wakefulness

...he cell membrane that affect cellular responses by controlling the flow of potassium into the cell. The researchers set out to discover how glucose inhibits a particular class of glucose-sensing neurons that produce tiny proteins called orexins, which are central regulators of states of consciousness. Wrote B...

How nature tinkers with the cellular clock

...ulated in each species. "Regulating processes by controlling the time at which genes are expressed is a strategy that is conserved," says Peer Bork, joint coordinator of EMBL's Structural and Computational Biology Unit, "but details of which genes are regulated in this way and the exact timing of their express...

Striking the right balance between excitation and inhibition

...erring to the multiple roles of Notch, not only in controlling the differentiation of neurons but in determining their excitatory/inhibitory activity, he adds: "Given that we now have a detailed description of how Notch signaling provides a switch that controls the choice between two different neuronal fates, we...

UCSD study reveals how plants respond to elevated carbon dioxide

...s known about the molecular and genetic mechanisms controlling this response. Schroeder and colleagues discovered that in the cells surrounding the leaf stomata calcium ion "spikes"--or rapid increases and then decreases in calcium ion concentrations within cells--changed in frequency according to atmospheric ...

Key gene controlling eye lens development identified

...ed Six3 is one of the earliest critical regulators controlling lens development in the eye of the mammalian embryo. Mutations in Six3 have been previously identified in patients with holoprosencephaly, a disease that can cause the part of the brain called the cerebrum to fail to divide normally into two lobes....

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