dependence

Open microfluidic and nanofluidic systems

...ology since there was no systematic theory for the dependence of this morphology on the materials properties and on the channel design. Such a theory has now been developed. This theory addresses the strong capillary forces between substrate material and liquid and takes the ‘freedomâ€TM of contact angles at ...

Affymetrix and the Karolinska Institutet Announce Translational Medicine Strategic Alliance

...elated to cost and pricing of Affymetrix products, dependence on collaborative partners (including uncertainties related to the outcome of the collaboration discussed in this press release), uncertainties relating to sole source suppliers, uncertainties relating to FDA and other regulatory approvals, competitio...

Buying Time Through Hibernation on Demand

...lic inactivity ?and subsequent freedom from oxygen dependence ?could be replicated in humans, it could help buy ...h hypothesizes that temporarily eliminating oxygen dependence in healthy cells could make them a less-vulnerable target for radiation and chemotherapy and thus sp...

U-M team recovers ancient whale in Egyptian desert

...lic inactivity ?and subsequent freedom from oxygen dependence ?could be replicated in humans, it could help buy ...h hypothesizes that temporarily eliminating oxygen dependence in healthy cells could make them a less-vulnerable target for radiation and chemotherapy and thus sp...

Motor transport in bio-nano systems

...l control parameters, and determine the functional dependence of the transport properties on these parameters. T... of these models, one can determine the functional dependence of the motor transport on the compartment geometry and on the arrangement of the filaments. Two part...

Investigating 'brain shrinkage' in alcoholics

...tion of underlying mechanisms of damage. "Alcohol dependence follows a longitudinal course," explained Harper, ... laboratory. By contrast, animal models of alcohol dependence can be exquisitely controlled, in terms of alcohol-exposure amounts, time in development of exposure...

MSU researchers receive $4 million grant to uncover gene functions

...sters of the sun's energy into biomass to decrease dependence on oil," said Robert Last, professor of biochemistry and molecular biology and plant biology at MSU. "We also will be able to more efficiently make nutrients important to human health. These include vitamins and heart-healthy oils." The NSF's Arabid...

Organic farms produce same yields as conventional farms

...equently over time on organic farms because of the dependence on cultural practices to supply nutrients and control pests and because labor costs average about 15 percent higher in organic farming systems, the higher prices that organic foods command in the marketplace still make the net economic return per acr...

Traditional models underestimate extinction rates

...nction rates in the flea experiments. When density dependence was not included, extinction rates were greatly underestimated. Drake's results underscore the importance of bolstering extinction models with empirical validation--and of accounting for population density--to accurately evaluate risk and enhance re...

Opiate cocktail may spare cells from morphine's dark side

...oid drug, significantly reduced both tolerance and dependence in test animals. The work is reported by Li He and Jennifer Whistler of the Ernest Gallo Clinic and Research Center and the University of California, San Francisco. The analgesic effects of morphine arise through the interaction of the drug with a ...

Bronx Zoo bears are new Samsonite gorillas

...ack bears remain wild and break the cycle of their dependence on human food and garbage," said Zo?Smith, community coordinator for WCS' Adirondack Communities and Conservation Program. http://www.dec.state.ny.us/website/press/pressrel/2005/2005102.html Subjecting the canister to the weight and strength of th...

'Perception' gene tracked humanity's evolution, scientists say

...to influence perception and susceptibility to drug dependence is expressed more readily in human beings than in other primates, and this difference coincides with the evolution of our species, say scientists at Indiana University Bloomington and three other academic institutions. Their report appears in the Dec...

Looking for the genes that affect a person's level of response to alcohol

... out of cells." "We know that alcoholism/alcohol dependence is a complex trait, and that the risk for it is composed of many, many different genes, each contributing a small to a medium amount," said Hesselbrock. "What Dr. Schuckit has done is add another set of genes to that pool. It may be a small step, b...

Marathon of nano-sprinters

...of unbinding processes and to a strongly nonlinear dependence of the cargo velocity on the external load force. Simi-lar cascade processes are expected in more complex situations, in which the cargo transport is performed by different types of molecular motors. All transport properties predicted by the new th...

Horseshoe crab decline threatens shorebird species

... the College of Natural Resources. The red knot's dependence on the horseshoe crab for survival has attracted the interest of local, state, and international wildlife management officials and researchers. Due to the red knot's unusual migratory and eating behaviors, scientists from as far away as Australia fre...

New DNA 'fingerprinting' technique separates hemp from marijuana

...tivated in the United States would reduce American dependence on foreign products while creating a new alternative crop for American farmers. ...

Variation in bitter-taste receptor gene increases risk for alcoholism

...bases. The variant that increases risk of alcohol dependence was common in African Americans -- where about 45 percent of those studied carried this variation in the TAS2R16 receptor gene -- but rare in Caucasians -- where only 0.6 percent had this variation. Although the increased incidence of the variant mea...

HIV vaccine takes different tack to boosting immune response

...ction and will relieve HIV patients of their heavy dependence on antiretroviral drugs, many of which are expensive and require daily administration. "Conventional wisdom is that natural immune responses play an important but insufficient role in controlling HIV infection," said Chen. "Hopefully this therapeuti...

Long-term changes in experience cause neurons to sprout new long-lasting connections

...t to loss of the whiskers ?a strategy that reduces dependence on lost whiskers and enhances input from intact whiskers. "We knew from previous work that a subpopulation of dendritic spines appears and disappears over time, but we didn't know the biological meaning of this process," said Svoboda. "In these expe...

UC Davis researchers move biotechnology closer to replacing electronic pacemakers

...in pigs with electronic pacemakers, reducing their dependence on implanted devices. This work suggests that scientists are one step closer to making bioengineering a reality in treating the more than 2.2 million Americans affected by irregular heartbeats. The UC Davis study, which was co-authored by an inter...

Brighter future for giant panda?

...ountainous region in China with an unusual dietary dependence on bamboos found only in these mountains. This elusive nature has shielded important knowledge needed to save it from extinction, until now. Understanding population trends for giant pandas has been a major task for conservation authorities in Chin...

Biofuels researcher searches for new sources

...can alsoimprove rural economies, and reduce energy dependence on foreign petroleum oils," said Ralph Peck, director of the Institute for Biobased Products at MSU. The institute has funded Chen's research after receiving a line-item appropriation through Sen. Conrad Burns, R-Mont. "One of our goals is to make...

DOE publishes research roadmap for developing cleaner fuels

...us opportunity to move our nation toward a reduced dependence on imported oil," DOE Assistant Secretary for Energy Efficiency and Renewable Energy Alexander Karsner said. "We fully intend to use all of our resources and talent to support the President's goal of breaking our addiction to oil, while also enhanci...

Copying nature could save us energy, study shows

...vercome engineering problems could help reduce our dependence on energy, according to new research published in ...new approaches that could significantly reduce our dependence on energy. "It is likely that we have similar technologies to nature ?it's just that we use them ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...he one patient with the longest history of alcohol dependence (25 years) had a slightly reduced brain volume (-0...obriety. However, they also suggest that prolonged dependence on alcohol may limit rapid recovery from white matter brain injury. "Modern neuroimaging enables ...

Mayo researchers discover HIV dependence on a human protein

...e, it will be of interest to examine whether HIV's dependence on p75 can be exploited therapeutically." How They Did It The researchers started by noticing that p75 "tethers" HIV integrase to human chromosomes like a molecular rope and also protects it from the cell's protein-degrading machinery. While thes...

German researchers develop first non-invasive test to measure skin aging

... physical appearance of the network showed a clear dependence on the patients' age. The dependence appeared to be sex-dependent, with women's skin losing collagen at faster rates than men's. The t...

Nonvenomous Asian snakes 'borrow' defensive poison from toxic toads

...agues published results of research on the snake's dependence on certain toads in this week's online issue of the journal Proceedings of the National Academy of Sciences. Hutchinson studied the Asian snake Rhabdophis tigrinus and its relationship to a species of toxic toad it eats. In the PNAS paper, she and...

Genes and genius: Researchers confirm association between gene and intelligence

...er study, people who have been treated for alcohol dependence and members of their families provide DNA samples to researchers, who isolated DNA regions related to alcohol abuse and dependence, as well as a variety of other outcomes. Some of the participants in the study also took the Wechsler Adult Intellig...

Living with water scarcity -- world must act now

...h in both countries, diets are changing, with more dependence on animal products. In China, per capita meat demand has quadrupled over the last 30 years, and in India milk and egg products are becoming increasingly popular ?meaning an accelerated demand for more water to grow more food. Growing cities take mo...

Studies yield insight into the numerical brain

...tract numerical representations, the right shows a dependence on the notation used for a number, they found. The researchers concluded that "results challenge the commonly held belief that numbers are represented solely in an abstract way in the human brain." The authors also concluded that their results "advoc...

OHSU lab finds meth receptor that could lead to therapy

...the development of new pharmaceuticals that reduce dependence on and craving for methamphetamine." The study is published in the April edition of the Journal of Pharmacology and Experimental Therapeutics. Earlier research in the Grandy laboratory demonstrated that meth and amphetamine stimulate the produc...

New compound prevents alcoholic behavior, relapse in animals by blocking stress response

...at bind CRF and make it active—in treating alcohol dependence in animals. CRF levels in the brain rise in the short term after drinking; in subjects that are not dependent, this activation returns to normal within a day or so. The new study shows that the CRF system becomes overactive in the long term in animal...

New success in engineering plant oils

...cesses. Such renewable resources could help reduce dependence on petroleum. Conversely, methods to increase the activity of KASII, and therefore the production of 18-carbon desaturated plant oils, may provide a useful strategy to limit the accumulation of saturated fatty acids in edible oils, leading to more...

Biodiesel study targets cleaner air, cleaner engines

...t. "Biodiesel has the potential to reduce Canada's dependence on fossil fuels, provide great environmental benefits and increase market opportunities for Canadian oilseed producers." "Our Government is committed to encouraging the development and use of renewable fuels," said the Honourable Gary Lunn, Ministe...

NIDA study identifies genes that might help some people abstain from smoking

...t we had previously identified as playing roles in dependence to other drugs also contribute to nicotine dependence.? Genes that harbor variants that contribute to both success in quitting smoking and in vulnerability to become dependent on multiple substances include cadherin 13 (a molecule involved in cell ...

Researchers examine carbon capture and storage to combat global warming

...ou have to get on this point. But nonetheless, our dependence on fossil fuels is not going to last forever.''...