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Tag: "spikes" at biology news

Carnegie Mellon scientists show brain uses optimal code for sound

...We've found that timing of just a sparse number of spikes actually encodes the whole range of nature sounds, including components of speech such as vowels and consonants, and natural environment sounds like footsteps in a forest or a flowing stream," said Michael Lewicki, associate professor of computer sci...

Study reveals how ADHD drugs work in brain

...igh doses. High-dose stimulants can cause dramatic spikes in neurotransmitter levels in the brain, which can in turn impair attention and heighten the risk of developing addiction. "It is surprising that no one was looking at low-dose [ADHD] drugs because we know that the drugs are most effective only at ...

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

...g rates in relation to the controls, from about 14 spikes per second to about 29 spikes per second. Two promising lines of research Colom and his fellow researchers at the University ...

Brain-computer link lets paralyzed patients convert thoughts into actions

...ta and build filters to convert patterns of neural spikes into two- dimensional commands. "Training patients to move things with their minds is different with each patient," said Maryam Saleh, who worked with the first two patients as a Cyberkinetics technician and is now a doctoral student in Hatsopoulos...

UCSD study reveals how plants respond to elevated carbon dioxide

...tion was increased, the rapid drum roll of calcium spikes within the cells changed to a slower beat. The cel...imes the calcium sensors to respond to the calcium spikes in the cell. Since changes in calcium concentration are used in other communication processes within...

Psst! Coffee drinkers: Fruit flies have something to tell you about caffeine

...trical current "spikes" at a frequency of about 20 spikes per second. Other bitter compounds like quinine generated electrical current spikes at about the same frequency in the mutants. Only flies missing the Gr66a taste receptor protein we...

A green way to slag off bunnies

...ress it as spiky structures on their leaves. These spikes put rabbits off their feed, abrading their teeth and giving them stomach-ache (Pest Management Science DOI:10.1002/ps.1302). Humans only eat the grain, so the repellent would only affect the vermin. But when the slag-treated plants were compared ...

Global 'sunscreen' has likely thinned, report NASA scientists

...o 1978. The resulting data show large, short-lived spikes in global aerosols caused by major volcanic eruptions in 1982 and 1991, but a gradual decline since about 1990. By 2005, global aerosols had dropped as much as 20 percent from the relatively stable level between 1986 and 1991. The NASA study also ...

Genomic Analysis Uncovers New Targets for HIV Vaccine

...nfected with HIV, the amount of virus in the blood spikes as the virus multiplies. After this peak, the amount of virus in the blood, known as the viral load, gradually decreases and then levels off, a period during which patients do not exhibit symptoms of their disease. The viral load during this leveling...

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(Date:7/28/2014)... professor John Essigmann and colleagues from the University of Washington ... if they could induce the virus to mutate uncontrollably, they ... a strategy that our immune system uses against many viruses. ... HIV to mutate at an enhanced rate, as expected. But ... small clinical trial reported in 2011. In a new study, ...
(Date:7/28/2014)... other forms of dementia, but the research community is ... Washington bioengineers have a designed a peptide structure that ... proteins into a state that,s linked to widespread diseases ... and Lou Gehrig,s disease. The synthetic molecule blocks these ... an abnormally folded form by targeting a toxic intermediate ...
(Date:7/28/2014)... 28, 2014) Rice University researchers are using magnetic ... flexibility that can be used as microscale models for ... "bead-spring" polymers, introduced as theory in the 1950s, can ... and should be of interest to materials scientists who ... led by Rice chemical and biomolecular engineer Sibani Lisa ...
Breaking Biology News(10 mins):Forced mutations doom HIV 2Forced mutations doom HIV 3Forced mutations doom HIV 4New protein structure could help treat Alzheimer's, related diseases 2New protein structure could help treat Alzheimer's, related diseases 3Seeing is bead-lieving 2
(Date:7/29/2014)... discovered a group of new materials capable of ... award worth a combined 2m to find out ... lead to a significant reduction in hospital infections ... health care of hospital patients across the globe. ... the School of Pharmacy and Paul Williams, Professor ...
(Date:7/29/2014)... 2014 CHI-California Healthcare Institute today unveiled ... hepatitis C (hep C) epidemic in the U.S., the ... to reduce human suffering. The report examines key data ... hep C, while highlighting the significance of breakthroughs that ... CHI is a nonprofit, public policy research organization, representing ...
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(Date:7/29/2014)... Researchers at Cold Spring Harbor Laboratory (CSHL) have discovered a ... p53, this protein has been called "the guardian of the ... sense damage to their DNA caused by stress, such as ... UV rays. If the damage is severe, p53 can ... Mutant versions of p53 that no longer perform this vital ...
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Breaking Medicine News(10 mins):Health News:Bacteria resistant materials -- £2m to get the 'inside' story 2Health News:Bacteria resistant materials -- £2m to get the 'inside' story 3Health News:CHI Releases Report Highlighting Public Impact of Hepatitis C, Opportunities for Action in US 2Health News:CHI Releases Report Highlighting Public Impact of Hepatitis C, Opportunities for Action in US 3Health News:CHI Releases Report Highlighting Public Impact of Hepatitis C, Opportunities for Action in US 4Health News:Activz Organic Fruit and Vegetable Produce Powders and Founder Frank Davis Mentioned in WholeFoods Magazine Article 2Health News:Activz Organic Fruit and Vegetable Produce Powders and Founder Frank Davis Mentioned in WholeFoods Magazine Article 3Health News:Research may explain how foremost anticancer 'guardian' protein learned to switch sides 2Health News:Silverado Selected a Winner in the 35th Annual Telly Awards for Producing Inspiring Online Video Content 2
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