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Tag: "capable" at biology news

Olfactory system detects pheromones that control reproduction

... virus. These studies confirmed that the virus was capable of infecting all nuclei comprising the vomeronasal system. Next, the researchers postulated that one should be able to identify functional correlates of the anatomical circuit linking olfactory neurons and LHRH-producing neurons. They studied the se...

New battery technology helps stimulate nerves

...est, is new lithium battery technology, technology capable of making batteries smaller, last longer and, soon, accept a charge from outside the body without the need for surgery. Using organosilicon compounds, West and his UW-Madison colleagues have developed a new generation of rechargeable lithium ion bat...

Bare metal stents deliver gene therapy to heart vessels with less inflammation in animal studies

... biological substance, in this case an adenovirus, capable of delivering a therapeutic gene to target cells. Dr. Levy's team created a unique water-soluble compound, polyallylamine biphosphonate, that binds to the stent's metal alloy surface in a layer with the thickness of only a single molecule. The biph...

Sperm stem cells closer to being like embryonic stem cells

...ng such cells to behave like embryonic stem cells, capable of growing into many other types of cells in the body. Researchers at the Cecil H. and Ida Green Center for Reproductive Biology Sciences at UT Southwestern Medical Center devised methods to keep male rat germ-line stem cells ?sperm precursor cells ...

Zooming in on the protein-conducting channel

...e-dimensional cryo-EM is one of the few techniques capable of visualizing large, dynamic molecules. In preparing for cryo-EM, researchers immersed the PCC-containing complex in water and then abruptly froze it in supercold liquid ethane. The rapid freezing imprisoned the complex in vitreous ice, a glassy no...

Ancient trans-Atlantic swarm brought locusts to the New World

...orld's most economically important insects, and is capable of forming massive swarms that devastate crops. DNA shows that ancestors of the desert locust flew across the Atlantic and gave rise to a diverse group of New World species. "If we were standing on the coast of Africa, we might have these swarms of ...

Sperm trading can resolve hermaphrodite mating conflicts

... generated individual sea slug hermaphrodites only capable of performing a "dry" copulation--that is, without sperm transfer. Sea slugs that mated with such a "cheating" partner interrupted sexual intercourse significantly sooner than did control pairs. This supports the concept of sperm trading, where mates...

Scientists observe how a close bond activates the immune system

...sands of copies of itself. These T cell clones are capable of killing invaders outright and marshaling other cells to destroy them. In the new study, Gabriele Campi, a graduate student in Dr. Dustin's laboratory, and Kaspar Mossman, a graduate student of Dr. Groves's, created a synthetic dendritic cell us...

'Acid rain' and forest mass: Another perspective

... the same time. Subsequently, certain bacteria are capable of oxidising the compound, thus forming nitrate and liberating protons that acidify the soil. Amongst the effects of the deposition of these compounds on the forest mass are the well-known nutrition disorders of the same. One classic effect is that o...

Anti-cancer drugs may hold promise for premature aging disorder

...ow that FTIs, originally developed for cancer, are capable of reversing the dramatic nuclear structure abnormalities that are the hallmark of cells from children with progeria. This is a stunning surprise, rather like finding out that the key to your house also works in the ignition of your car," said NHGRI ...

Cyberkinetics, Case to develop system to help restore extremity function

... the joint development of a neuroprosthetic system capable of restoring partial arm and hand function to individuals with extensive paralysis due to high cervical spinal cord injury (SCI). The joint project will combine limb movement technology developed at Case and the FES Center with brain-interface techno...

NRL scientists detect 'milky sea' phenomena

...achieve nighttime detection, the OLS uses a sensor capable of registering extremely low levels of visible light. This system has been used to detect terrestrial and atmospheric emission sources such as fires, lightning, and human activity (city lights, fishing boats, etc.) around the world. However, there ha...

A new link between stem cells and tumors

...o longer had normal neuroblasts and daughter cells capable of becoming part of a nerve," Caussinus says. "Instead, we had a tumor." When these altered cells were transplanted into flies, the results were swift and dramatic. The tissue containing the altered cells grew to 100 times its initial size; cells i...

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests

...ng deforestation across large areas have only been capable of detecting clear-cut swaths of land, where all the trees are removed to clear space for farming or grazing. A new satellite imaging method, developed by Gregory Asner of the Carnegie Institution of Washington and colleagues, detects deforestation...

Sudden change in social status triggers genetic response in male fish, study finds

...y and by turning on genes that ultimately make him capable of reproducing," notes Fernald, the Benjamin Scott Crocker Professor of Human Biology at Stanford. This finding offers the first direct evidence that changes in social status also trigger cellular and molecular changes in the brain, he adds, which c...

Regenerating worms help elucidate stem cell biology

... Salamanders, zebrafish, and other organisms are capable of regenerating entirely new body parts. Although the human body does not face such demands, it is constantly replacing lost cells. For example, blood replenishes itself, wounds heal, and the lining of the gut sloughs off and is restored. Nowhere, ho...

New antifreeze protein found in fleas may allow longer storage of transplant organs

...he fleas to protect themselves against freezing is capable of inhibiting ice growth by about six Celsius degrees. This would allow organs to be stored at lower temperatures, expanding the time allowed between removal and transplant. The results of the Queen's study, funded by the Canadian Institutes for Hea...

Biotechnology's newest chemical tool

... family of DNA methyltransferases includes enzymes capable of recognizing over 200 distinct sequences, this new approach provided an unprecedented ability to manipulate DNA experimentally. To demonstrate the technique's potential to alter DNA function, the researchers modified DNA in a position that blocke...

Gene therapy works in mice to prevent blindness that strikes boys

...nas were intact. In addition, the protein appears capable of moving within the retina to its target sites and the beneficial changes appear to be long lasting, researchers said. Especially encouraging were signs the treatment may be able to repair retinal damage. The treatment has promising implications fo...

Purdue's gold nanorods brighten future for medical imaging

...nstrate that Cheng's nonlinear imaging methods are capable of this level of detection." The research has been funded by the National Institutes of Health and is affiliated with the Birck Nanotechnology Center and the Bindley Bioscience Center, both in Purdue's Discovery Park, the university's hub for interd...

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