networks 2 2

Tag: "networks" at biology news

An artificial cornea is in sight, thanks to biomimetic hydrogels

...as biological tissues. It's made of two interwoven networks of hydrogels. One network, made of polyethylene glycol molecules, resists the accumulation of surface proteins and inflammation. The other network is made of molecules of polyacrylic acid, a relative of the superabsorbent material in diapers. "Thin...

Most important actors in the growth process of neurons identified

...central nervous system. The brain contains complex networks of neurons that regulate a large number of bodily functions. Because the brain and the nervous system are a delicate system, something can sometimes go seriously wrong and a brain or nerve disease appears - for example, Alzheimer's or Parkinson's dis...

Motorola researchers develop selective sensors based on carbon nanotubes

...Integration of nanosensors into devices and sensor networks will enable the detection of biological and chemical agents at very low concentrations, which could be vital in the areas of public safety and homeland security," added Vida Ilderem, vice president of the Embedded Systems Research Labs at Motorola, T...

Serengeti patrols cut poaching of buffalo, elephants, rhinos

..., for instance, that officer training or informant networks improved. "We show that a precipitous decline in enforcement in 1977 resulted in a large increase in poaching and decline of many species," Hilborn and his co-authors write. "Conversely, expanded budgets and antipoaching patrols since the mid-1980...

Study offers innovative profile of enzyme that aids tumor growth

...in to decipher the complex metabolic and signaling networks of cancer. According to the study, one of the ...range of enzymes into both metabolic and signaling networks contributing to complex pathologies like cancer," Cravatt said. "This could lead to the discovery of...

How many genes does it take to learn? Lessons from sea slugs

...udied gene expression in association with specific networks controlling feeding or defensive reflexes in the sea slug. To their surprise, they identified more than 100 genes similar to those associated with all major human neurological diseases and more than 600 genes controlling development, confirming that ...

African wetland managers armed with new technology

...information and the inefficient in-situ monitoring networks hinder the conservation efforts of wetland managers and water authorities. In support of all African countries participating in the project, GlobWetland ?which is funded by ESA's Data User Element (DUE) ?hosted a five-day training seminar, develope...

K-Staters design and build a low-cost remote sensing tool for environmental studies

...nt of the regional network, Ameriflux. Counterpart networks in Europe, Asia and Oceania also collect ecologica...ace and the atmosphere," Ham said. "Through these networks we're trying to get a good understanding of all the major ecosystems in the world: grasslands versus...

The brain, traffic and nano-circuits -- e-Science takes on major challenges

...(brain or nerve cells) or the interactions between networks of neurons that lead to thoughts and behaviour. The techniques are time-consuming, difficult and expensive, but researchers rarely record their data or models so that they can be used by other labs or research groups. CARMEN will help maximise the ou...

Carnegie Mellon researchers discover key deficiencies in brains of people with autism

...ions to the frontal cortex, limiting what types of networks can be used," said Marcel Just, co-author of the studies and director of Carnegie Mellon's Center for Cognitive Brain Imaging. Both studies focused on people with autism who have normal IQs. In one study, the researchers used functional magnetic re...

Life and death in the hippocampus: what young neurons need to survive

... depends on whether they can muscle their way into networks occupied by mature neurons. Neuroscientists at the...sis suggests constant rearrangements within neural networks are absolutely necessary for learning to occur. In fact, data emerging from studies in the Gage ...

Septum keeps neurons in synch, can reduce epileptic seizures by 90 percent

...es by 86-97 percent. The study "Septo-hippocampal networks in chronically epileptic rats: Potential antiepileptic effects of theta rhythm generation," by Luis V. Colom, Antonio García-Hernández, Maria T. Castañeda, Miriam G. Perez-Cordova and Emilio R. Garrido-Sanabria, The University of Texas at Brownsville...

First 'encyclopedia' of nuclear receptors reveals organisms' focus on sex, food

...nter researchers found that certain receptors form networks and interact to regulate disease states and physio...s, reproduction and nutrient metabolism. Receptor networks also have key roles in metabolism's biological clock, researchers found. The findings, published t...

Nanowire arrays can detect signals along individual neurons

...w working toward monitoring signaling among larger networks of nerve cells. Lieber says the devices could also...tudy and manipulate signal propagation in neuronal networks at a level unmatched by other techniques; it provides a new paradigm for building sophisticated inte...

Flick of a protein switches immune response

...nciples of signal transduction and transcriptional networks of living cells," Chen said. The Cell paper, which Chen describes as spanning 14 years of laboratory work, builds on a result his group published in Nature in 1998. ...

Researchers map out networks that determine cell fate

...at the University of Chicago, "and we suspect such networks also regulate cell fate in other systems." This finding "represents a significant advance in understanding the molecular mechanisms that regulate [stem cell] development," according to a commentary in the journal by Dale Muzzy of Harvard University ...

Study finds 60 new genes controlled by DNA snippet

...regulatory network. Throughout a human life, such networks are believed to "decide" the timing and location of all gene expression, the process through which genetic information is converted into templates for protein construction. The current study, funded through a grant from the National Heart, Lung and ...

U of MN researchers develop way to visualize synchronized interactions of nerve cells in the brain

...nter have discovered a new way to assess how brain networks act together. Work funded by the MIND Institute...el way to assess the dynamic interactions of brain networks acting in synchrony, as reported in a recent issue of the Proceedings of the National Academy of Sci...

Predicting chemotherapy outcome

... findings into global and interconnected molecular networks that characterise resistance in patients with colo...hemotherapy. They conclude that knowledge of these networks could potentially be used to improve diagnosis and treatment of patients with colorectal cancer. ...

A new focus for the mechanism of nerve growth

...s a key part of the process of recycling the actin networks and ultimately sensing and directing nerve growth.... impede neuronal advance." Forscher likened actin networks in the growth cone to a molecular treadmill that is constantly being assembled at the leading edge a...

1 2 3 4 5