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Tag: "guidance" at biology news

First demonstration of 'teaching' in non-human animals

...n other words, the teacher provides information or guidance for the pupil at a rate suited to the pupil's abilities, and the pupil signals to the teacher when parts of the 'lesson' have been assimilated and that the lesson may continue." Tandem running in Temnothorax ants meets all these criteria and thus q...

Chemical signaling helps regulate sensory map formation in the brain

... the development of such maps and the gradients of guidance molecules that control their formation. Scientists have searched for these gradients, the global positioning system of the brain, for more than forty years. In 1963, neurobiologist Roger Sperry (who won the Nobel Prize in 1981) proposed the "chem...

Where 'jumping genes' fear to tread

...reciated." The work was conducted under Mattick's guidance by graduate students Cas Simons and Michael Pheasant, as well as by Dr. Igor Makunin, a postdoctoral researcher. ...

Proteins spur diabetic mice models to grow blood vessels, nerves

... Netrins are one of four major classes of neural guidance cues, which induce axons or nerve fibers to extend in specific directions during development. In 2004, Li and his colleagues showed in laboratory cultures that in addition to promoting nerve growth, Netrin-1 also induced formation of blood vessels. ...

Queensland scientists identify molecule that links both sides of the brain

...ce. QBI has been studying a variety of molecular guidance systems which play pivotal roles in the guidance of nerve fibres and newly born neurons throughout the developing central nervous system. ...

Combined treatment extends life expectancy for lung cancer patients

... is delivered directly to cancerous cells with the guidance of a diagnostic image showing the tumor's location. However, if some cancerous cells have spread into small channels of the lung around the tumor, they tend to be small and not visible on a radiology scan. Thermal ablation, which sends electrical cur...

New roles for growth factors: Enticing nerve cells to muscles

... will be missing." Hence the need to identify axon guidance factors. He continues, "It is not enough to make the right cell type, you need to connect them to the right target. Growth factors like FGF may be crucial to persuade and guide them towards the desired destination." Additional contributors to this ...

Stimulation of the semicircular canals can artificially control human walking and balance

...ad movements can contribute to balance control and guidance control--two critical aspects of bipedal locomotion--the researchers stimulated nerves that normally communicate signals from the so-called semicircular canals, structures that are part of the vestibular system that assists in orientation and balance...

Coming soon: 3-D imaging that flies 'through' and 'around' cancer

... detection rates of colon cancer, provide surgical guidance and detect which tumors may be easier to biopsy," detailed Andrew Quon, clinical assistant professor of radiology/diagnostic radiology at California's Stanford University. "Three-dimensional fusion provides unique views of the body that internal o...

Diabetes research takes wing thanks to long-lived fruit fly

... Jasper earned his doctoral degree under Bohmann's guidance in 2002 and is now an assistant professor of Biology. Bohmann initially studied cancer in human cells, then switched to studying fruit flies because he felt that making findings important to human health would happen more rapidly using flies, then t...

3-D ultrasound scanner could guide robotic surgeries

...vailable to the surgeon and serve as an additional guidance tool." ...

Other patients bear the real cost of Herceptin

...ce the books, say doctors in this week’s BMJ. New guidance from the National Institute for health and Clinica...tion highlights our central argument, that as NICE guidance provides no extra funding or any suggestion of which services to cut, medical professionals ultimate...

PLoS ONE is launched by the Public Library of Science

... published today have been peer-reviewed under the guidance of an extensive academic editorial board, and cover a broad range of research topics, from basic molecular science to clinical studies. Specific subjects include the evolution of language1, the control of rabies2, mimicry of jumping spiders3, and Alz...

Prototype just-in-time medical device enables untrained bystanders to save lives

... support, or JITS, device provides bystanders with guidance and information on how to administer CPR and assess the state and needs of the victim. The researchers will present their work at the HFES 50th Annual Meeting at the Hilton San Francisco Hotel on Wednesday, October 18. The meeting dates are October 1...

Beyond the book: Software automates access to brain atlases

... Wei-Cheng Cheng to develop a prototype under the guidance of Swanson and Thompson guidance. Cheng wound up rebuilding NeuART from the ground up, said Burns. The revised NeuARt II interface indexes the data in a variety of ways, including spatial maps and alphanumeric information, coming off a single in...

American scientist's research of life's first cells

...n Jerusalem. His PhD research, conducted under the guidance of Uri Alon at the Weizmann Institute, centered on analyzing complex biological networks using network motifs. Milo continued in Alon's group as a postdoctoral fellow, and measured the variability and memory of protein levels in human cells. His doct...

Researchers to study why dead zone returned to Lake Erie

... well as develop management and policy options and guidance on a course of action to alleviate the problem. CILER is one of 11 National Oceanic and Atmospheric Administration joint institutes and is administered by the SNRE. The grant, funded by NOAA's Center for Sponsored Coastal Ocean Research, provides sc...

Biologically inspired sensors can augment sonar, vision system in submarines

...ical system." In fish, the lateral line provides guidance for synchronized swimming, predator and obstacle avoidance, and prey detection and tracking. Equipped with an artificial lateral line, a submarine or underwater robot could similarly detect and track moving underwater targets, and avoid collisions wi...

Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck

...lts are important because they can provide crucial guidance as scientists formulate selective experiments to modify the enzyme complex for improved efficiency." What the scientists found in their simulations ?a "virtual microscope" that let them zoom in on previously invisible details -- is that initially...

Motor protein plays key role in connecting neurons

... At the periphery, DCC interacts with netrin-1, a guidance cue for helping the arm-like extension of the cell, called the axon, grow in the right direction. Cells eventually communicate through synapses at the end of these cellular projections. "During early development, axons need to grow, they need to f...

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