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Tag: "extensive" at biology news

Brain inflammation may be friend, not foe, for Alzheimer's patients

... mice without the over-active IL-1beta. Through extensive experiments, the team showed that the mice simply weren’t making fewer plaques, but rather that the body was better at getting rid of the plaques. The team suspects the involvement of brain cells called microglia, the major immune cell that rushes to...

Modeling the restless brain

...nnectivity, neuroinformatics approaches, which use extensive anatomical and physiological data sets to describe the macacque's brain, allowed Sporns and Honey to collect data on all the activity that occurred during their simulations. Sporns said he wants to create a similar large-scale computer model of t...

Simulations unravel outer membrane transport mechanism

...ion of a previous step, so the simulations take an extensive amount of time and considerable computational effort. The researchers addressed two key questions: First, could the bond between TonB and the luminal domain withstand the force needed to pull the luminal domain downward, away from the barrel" Seco...

Envisat captures first image of Sargassum from space

... University of South Florida were able to identify extensive lines of floating Sargassum in the western Gulf of Mexico in the summer of 2005. "This appears to be the first report of a satellite image of Sargassum," Gower said. "It is usually associated with the area of the North Atlantic known as the Sargasso...

Research shows cord blood comparable to matched bone marrow

...improved survival rates. The study was done by extensive review of clinical data from transplant centers around the country and reported to the CIBMTR at the Medical College of Wisconsin, Milwaukee and the National Cord Blood Program at the New York Blood Center. The analysis included transplant outcomes i...

Massive herds of animals found to still exist in Southern Sudan

...a face the region, including an enormous amount of extensive seismic exploration for oil in the Sudd that is harming the environment,” added Elkan. “Industrial permits have been awarded over much of the migration corridors. Widespread automatic weapons used during the conflict are now being used by unauthorize...

Microbes at work cleaning up the environment

...rticles in the presence of cysteine displayed more extensive and prolonged aggregation, accumulating up to 1-10 micron (1/1000th of a millimeter)-sized structures. “Potentially we can use cysteine or cysteine-rich polypeptides or proteins for nanoparticle clean up,” Weber said. “With the boom in nanoscienc...

In nature, proteins sweep up nanoparticles

... building block to most proteins, yielded the most extensive and prolonged aggregation, with some blobs measuring ten microns in diameter. Their discovery could also refine the search for the earliest indications of life on Earth, as well as help determine whether planets like Mars once harbored life. Scien...

University of Pittsburgh School of Medicine researchers develop 'off-the-shelf' vascular grafts

...s (MDSCs) and a biodegradable polymer that exhibit extensive remodeling and remain free of blockages when graft...ercent). In addition, at eight weeks, there was an extensive remodeling of the MDSC-seeded polymer by surrounding tissue, exhibiting tissue formation that is con...

Potato wart eyed as risk to potato production

...ding small garden plots and subsistence farming to extensive land areas economically dependent on commercial production of potatoes for consumption or for potato seed production. "Potato wart is much easier to prevent than it is to control," Franc said. "It is highly critical that we prevent the introductio...

Researchers demonstrate way to control tree height

...de increased stress tolerance and have value where extensive root development is needed, such as in bioremediation of polluted soils or in very windy, limited soil moisture situations. From an environmental viewpoint, the researchers said, dwarfed trees such as this are unlikely to be any kind of threat to ...

Ecology in an era of globalization

...ng are highlights from the meeting, including more extensive work done since the event. In an introduction by Jeffrey Herrick (US Department of Agriculture) and José Sarukhan (Universidad Nacional Autónoma de Mexico, Ciudad Universitaria, Mexico), the authors discuss the impacts of globalization on environmen...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

... from around the world for their survey, the first extensive global study of island densities for any animal group. Analyzing these estimates, they determined that lizards were consistently more than ten times more abundant on islands than on the mainland. Previous research conducted by Ted Case at UCSD and...

First clinical trial of gene therapy for childhood blindness

...ectors to human retinas, the team have carried out extensive pre-clinical testing. The purpose of this trial is to find out how safe and effective the new intervention is in humans. The team conducting the trial, from UCL Institute of Ophthalmology and Moorfields Eye Hospital, is led by Professor Robin Ali ...

How to steer a moving cell

...ns and their functions ?has allowed them to map an extensive network of the signaling proteins that control cell movement. Their work, providing the first comprehensive profile of cell movement, could lead to a better understanding of cell migration in cancer metastasis and inflammatory disease. The study ...

Left-right wiring determined by neural communication in the embryonic worm

...look at this early period." A similar system of extensive gap junctions appears in the developing mammalian brain, but researchers have yet to figure out exactly what it does. In worms, at least, they now know that it's involved in differentiating the left and right sides. Now, Bargmann says, she's interest...

Fused nasal bones helped tyrannosaurids dismember prey

... were stronger than unfused carnosaur nasals. This extensive fusion increased the strength of such dinosaurs as the T. rex and helped them apply powerful bites that could splinter bone. With other carnivorous dinosaurs, says Snively, their skull bones might shear apart slightly when they chomp down on other an...

Scientists find genes involved in the battle between Hessian flies and wheat

... Over the past two years, the pest also has caused extensive yield losses in southeastern Missouri and a resurgence occurred in Oklahoma in 2006. Most recently, a Hessian fly infestation was identified near Lafayette, Ind., where the insect hadn't been reported for more than a decade. ...

Mine runoff continues to provide clues to microbial diversification

... large blocks of genes. While scientists have seen extensive gene transfer in bacteria, this is the first obser...ss spectrometry support from ORNL researchers with extensive reconstruction of genomes from community genomic data at UC Berkeley was key to this work, said Jill...

Human's ecological footprint in 2015 and Amazonia revealed

...er their relative impact remained due to a lack of extensive testing and contradictory arguments in regards to the impact of affluence. In the study Dietz and colleagues estimate the relative importance of the hypothesized drivers of environmental impact at the nation-state level. They then utilize their resul...

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