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Tag: "kinds" at biology news

Marathon of nano-sprinters

...2005). Molecular motors are nano-tractors for all kinds of cargo within the cells of living beings. They move in a stepwise manner along filaments of the cytoskeleton, consuming energy provided by the hydrolysis of ATP, which can be considered the fuel of the cell. Kinesin and dynein motors move along mic...

Discovering the first steps in transcription-coupled repair

...ides, reconnect broken strands, and patch up other kinds of damage. Transcription-coupled repair is unique: it targets repair to genes that are actively being transcribed into messenger RNA. TCR was discovered about 20 years ago as a result of comparing the properties of cells from patients with Cockayne ...

What can change in the brain? Electrical synapses, research shows

...econds, means that they may play a role in certain kinds of plasticity," said Barry Connors, a Brown professor of neuroscience and co-author of the paper. "But plasticity governs many critical brain functions. Since electrical synapses help synchronize the activity of brain cells, these junctions probably...

OHSU discovery sheds light into how stem cells become brain cells

...t appears to control how stem cells become various kinds of brain cells. The finding has significant implic...e that controls how stem cells turn into different kinds of nerve cells has important implications for clinical application in spinal cord repair strategies....

UCR environmental scientists propose chemical solution to cleaning California's Salton Sea

... Sea, the largest lake in California, by using two kinds of water-treatment chemicals that remove phosphorus and silt from the river water. The researchers investigated the use of alum, a type of salt that has been used to treat phosphorus-rich lakes for decades. They also cleaned water from the rivers f...

The secret love life of plants

...ilisation would be advantageous for many different kinds of breeding." ...

MRSA use amoeba to spread, new research shows

...e cells are being used to replace animals for many kinds of biological tests. "Effective control of MRSA within healthcare environments requires better understanding of their ecology," said Professor Brown. "We now need to focus on improving our understanding of exactly how MRSA is transmitted, both in...

Living taste cells produced outside the body

...over molecules that can enhance or block different kinds of tastes," explains principle investigator Nancy Rawson, PhD, a cellular biologist. "In addition, the success of this technique may provide hope for people who have lost their sense of taste due to radiation therapy or tissue damage, who typically l...

Pain killer fights breast cancer by targeting key enzyme

...aid. "We still have to test these analogs in other kinds of tissues, however, before we are completely sure that the nimesulide analogs' effects are specific to breast cancer cells." The analogs prevented a crucial step in the aromatase production process in the breast cancer cells ?they stopped transcrip...

Pitt professor's theory of evolution gets boost from cell research

...ordinary states have suites of molecules-- various kinds of proteins--whose jobs are to eliminate error that might get introduced and derail the functioning of their cell. For instance, some proteins work to keep the cell membrane intact. Other proteins act as chaperones, bringing molecules to their proper...

Underdogs in the understory: Study suggests nature favors rarer trees

...orests and Minnesota prairies arises from the same kinds of underlying processes. It brings us a step closer to understanding the causes of the world's amazing biodiversity," Tilman said. Muller-Landau contributed quantitative skills for analyzing and interpreting the data. "After all the effort that we...

'Banana-jawed' fossil mammal linked to rare sound-producing skill

...re relics of a time when Africa lacked most of the kinds of animals found there today. Current scientific thought holds that most modern mammal groups diversified and became larger only after a giant asteroid killed off the dinosaurs 65 million years ago. Numerous ecological niches vacated by the annihila...

Powerful new tool for studying brain development

...mputer interface that links our data to many other kinds of gene information, without the need to go into a regular laboratory." The BGEM is a growing, encyclopedic collection of tens of thousands of images as seen through a microscope. The images are obtained at distinct time points and show where and ...

Of mice, men, trees and the global carbon cycle

...ule that regulates the metabolism of plants of all kinds and sizes and that may also offer a key to calculating their carbon dioxide emissions, a number that must be known precisely in order to construct valid models of global carbon dioxide cycling. Emissions of the gas occur in both plants and animals ...

Taking a bite out of a fellow worker helps wasps recruit new foragers

... the nest to forage, where they are exposed to all kinds of stresses and dangers, is probably the biggest change these animals face in their lives," he said. O'Donnell plans future studies to learn what determines which members of a colony are doing the biting and which are being bitten. He suspects tha...

Satellites show Amazon parks, indigenous reserves stop forest clearing

...nt created a 5 million hectare mosaic of different kinds of reserves in the Terra do Meio region of Pará state. This connects two existing blocks of indigenous lands into a continuous corridor of protected tropical forest areas of 24 million hectares, the largest in the Amazon and the world. With broad ...

'Uniquely human' component of language found in gregarious birds

...e unique is a singular ability to comprehend these kinds of patterns," said Timothy Gentner, assistant professor of psychology at UCSD and lead author of the study. "If birds can learn these patterning rules, then their use does not explain the uniqueness of human language." The researchers focused on re...

Boosting newborns' immune responses

...se against the infection. People have 10 different kinds of TLRs, and Levy's team decided to examine how well they function in newborns by studying white blood cells from their cord blood. "We found that when most Toll-like receptors are stimulated, newborns' immune responses are very impaired," Levy say...

Ernst Mayr's theory illustrated in genetic epidemiology studies

...stral population, and the frequencies of different kinds of genes can be changed dramatically. Mayr also b...er genetic epidemiology studies that we find these kinds of genetic interactions all over the place, so that modern molecular biology has confirmed Mayr's i...

MIT: Oceans are a major gene swap-meet for plankton

...few "genomic islands," small zones where different kinds of genes get swapped in and swapped out, known among molecular geneticists as "hot spots" for gene exchange. The distributors or carriers of new genes, they suspect, are the massive numbers of viruses also known to exist in seawater, some of which a...

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