Tag: "transport" at biology news

Story ideas from the Journal of Lipid Research

...r hypolipoproteinemia, have an impaired ability to transport cholesterol out of their cells, which leads to an ... proteins called ATP-binding cassettes (ABCs) that transport lipids and other molecules inside and outside cells, but for many affected individuals, the causes o...

Story ideas from the Journal of Biological Chemistry

...identified a protein involved in the intracellular transport of molecules in neurons. Previous studies had shown that such transport processes were slowed down in ALS patients and related animal models, but how such deficiency was co...

New system for soil analysis

...nto the ground in order to study the behaviour and transport of substances in soil. Access points above ground allow soil, gas and water samples to be taken, and numerous sensors to be inserted that can provide information on various soil parameters. The stratification and structure of the soil in large-volum...

Novel sugar-to-hydrogen technology promises transportation fuel independence

...eaction and low cost. We have hydrogen storage and transport in the form of starch or syrups. And no special infrastructure is needed." "The next R&D step will be to increase reaction rates and reduce enzyme costs," Zhang said. "We envision that in the future we will drive vehicles powered by carbohydrate, ...

ACS News Service Weekly PressPac -- May 16, 2007

...ollutants, synthesize and release therapeutics, or transport loads with an ability to localize to a specific chemical signal would open new frontiers in bioremediation, drug delivery, and synthetic biology," Emory Universitys Justin P. Gallivan and Shana Topp state in the study. It is scheduled for publication...

Researchers develop way to calculate speed of bacterial sex

...iated with conjugations, bacterial cell motion and transport in ground water, and the colonization of soil surf...hers created a new mathematical model of bacterial transport and conjugation that focused on subsurface bacteria colonizing surfaces, such as sand and soil grain...

'Short-circuit' found in ocean circulation

...o uptake and release of carbon dioxide by the sea transport between the deep and surface waters in the Southern Ocean is particularly important for this process. Understanding oceanic circulation is important because it distributes heat, carbon and nutrients around the globe and therefore plays a central r...

Creation of an international industrial chair in life cycle assessment

...including all the intermediate stages: production, transport and consumption. In addition to production cost reduction related to the decrease in energy and resource consumption, one of the main benefits of LCA is that it avoids the transfer of pollution from one life cycle stage to another or from one type ...

Salk researchers discover first gene that specifically links calorie restriction to longevity

...alorie restriction, and the mitochondrial electron transport chain pathway, yet it is still not clear where sir-2 fits in. It seems to meddle with more than one pathway, says Dillin and adds that PHA-4 is specific for calorie restriction as it does not affect the other pathways. Humans possess three genes hi...

Work with nanoparticles may lead to 'on-the-spot' virus detector

...institutions to solve a critical bottleneck in the transport and capture of virus nanoparticles, making possibl...s present on a surface. "The bottleneck was how to transport and capture enough suspected viral particles onto a surface in a timely fashion so that they could b...

News tips from the Journal of Neuroscience

...ttern. This week, Millecamps et al. focused on the transport and turnover of light subunits (NF-L). They generated mice that conditionally expressed a transgene encoding human NF-L under the control of doxycycline in mice that were either heterozygous (tTA;hNF-L;NF-L +/- ) or deficient (tTA;hNF-L;NF-L +/- ) fo...

Arctic ice retreating more quickly than computer models project

...hanges in atmospheric and oceanic circulation that transport heat to polar regions. March ice Although the loss of ice for March is far less dramatic than the September loss, the models underestimate it by a wide margin as well. The study concludes that the actual rate of sea ice loss in March, which avera...

Researchers create interactive map with Google technology to track avian flu spread

...le East and Europe by various hosts, including its transport by specific orders of birds and mammals, said CU-Boulder graduate student Andrew Hill, a study co-author. They also used the supermap to track key genetic traits prevalent in some avian flu genomes that appear to confer the ability of H5N1 to more r...

Breathing easy: When it comes to oxygen, a bug's life is full of it

...racic and abdominal segment. The same tubes that transport oxygen into the insect body usher out carbon dioxi...ssues, while vertebrates dissolve oxygen in blood, transport it to tissues, and then reconvert the oxygen to usable form. Live action footage Because insects...

Asymmetry due to perfect balance

...ions. This is possible through active and directed transport whose net effects need to outdo diffusion till the...of membrane proteins. The already mentioned active transport processes rely on structures of the cytoskeleton to move molecules or whole organelles in specific d...

Researchers find ways to reduce side effects in the treatment of damaging protein plaques

... The protein transythyretin acts as a shuttle to transport thyroxine, a hormone, throughout the body. As the least important of the three blood proteins that carry thyroxine, transthyretin also has a tendency to fall apart and form tough, insoluble plaques, sometimes causing injury to delicate tissues. Certa...

Award lectures for ASBMB's 2007 Annual Meeting

...s in cell membranes that regulate cell growth; the transport of molecules between or within cells; and the arrangement of the cell's cytoskeleton, a network of fibers throughout the cell's cytoplasm that helps the cell maintain its shape and gives it support. ASBMB Award for Exemplary Contributions to Educat...

Jefferson researchers' discovery may change thinking on how viruses invade the brain

...tein was thought to tether viruses to the cellular transport machinery in order to get there. But Dr. Schnel...at Jefferson Medical College. "We found that while transport must happen its essential to viral infection and spread and disease progression its not through th...

Diffraction and scattering -- the solution to what's in solution

... and determine the chemistry that influences their transport in the environment" This research involved collaborations from various scientific disciplines including input from physicists, chemists and geologists. ...

New study zeroes in on genetic roots of Alzheimer's

...as amyloid precursor protein. The brain cells then transport the entire protein mass inside. Once inside, cutting enzymescalled proteasesattack the amyloid precursor protein. These cuts create protein fragments that, when present in the brain for long periods of time, are believed to cause the cell death, me...

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