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The Antarctic Ocean floor

...and, finally, the classification of the species in question is presented in the specialist literature. In the previous campaign, expedition members discovered a new species of vermes. The name of the species and its morphological characteristics will shortly be put forward for approval by the scientific comm...

K-State researchers study insects' immune system

... for a certain period of time in the mosquito. The question is, how does the pathogen survive? For a disease ... responses are but how they are regulated is a big question we need to study," Kanost said. "To me, one of the aspects that's interesting is even if we understa...

Mouse genome much more complex than expected

...worm? This observation might also explain the big question why mammals only have about twice as many genes as...ve a much simpler structure. 'Our study calls into question the classic view that one gene contains the information for exactly one protein,' Professor Zimmer e...

Study uncovers placental microtransfusions lead to transmission of AIDS virus during childbirth

...eir first day out of the safety of the womb. "The question has always been how does the virus get from the mothers to the babies?" said principal investigator Dr. Steven Meshnick, professor of epidemiology at the University of North Carolina at Chapel Hill School of Public Health. "We have known very little ...

A new window into structural plasticity in the adult visual cortex

... responses of neurons. But it has remained an open question whether structural changes accompany this function... observed functional reorganizations. Probing this question will depend on determining what kinds of structural changes might be expected, figuring out how to d...

Getting an evolutionary handle on life after reproduction

...y continue to produce eggs as adults. It's an open question whether postreproductive lifespan can influence fitness enough to be under selection. But in a field dominated by investigations into the origins of human menopause and extended lifespan, the authors make a strong case for using experimental comparat...

Scientists discover the molecular switch for nerve cells' insulating jelly rolls

... injury or disease to repair itself? That is a key question that our laboratory and others are now actively trying to answer," he says. ...

MIT researcher finds neuron growth in adult brain

...nse to the CPG data, Nedivi and Lee revisited this question with the help of So and Huang. By applying an innovative new imaging technology that allows monitoring of neuronal structural dynamics in the living brain, they found evidence for adult neuronal restructuring in the less-known, less-accessible inhi...

Storing carbon to combat global warming may cause other environmental problems, study suggests

...But I think we're asking the wrong question. "The question isn't just 'Can we store carbon in trees and how much do we gain from that?' The question is also 'What are the other gains and losses for the environment?' We have to be smart about our seq...

Plants have a double line of defence

...t reason the scientists looked particularly at the question of exactly which function the PEN2 protein has in the defence against pathogens. PEN2 is an enzyme located in the membrane of what are called peroxisomes. These are spatially separated cell compartments, in which metabolic reactions often take place...

Bacterial protein mimics host to cripple defenses

...n to recycle their own proteins. "An interesting question is where this protein came from," Martin noted. "Did the bacteria steal it from a host and modify it over time, or did it evolve independently? We don't know." Regardless, the discovery "helps us understand how organisms regulate cell death on a fun...

Older female fish prefer imperfect male mates, study finds

...month's print edition. Morris' findings raise the question of whether there may be a change in mating preference over time in other species as well. In a current study on human attraction, for example, the average age of the females and males tested for preference for symmetrical faces was only 20.3 years an...

Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace

...atures minutes afterwards," said Galán. A future question that could be addressed using this research is addressing how short-term memory gets encoded as long-term memory over time, said Galán. ...

Molecular research suggest shift needed in how some drugs are created

...o a resolution of 1.7 angstroms. The molecules in question are part of innate immune systems -- an inherent immune response coded by DNA in all living things -- that are crucial for survival against pathogens such as bacteria and fungi. Deficiencies in the system or an over-active response can set the stage ...

Many needles, many haystacks

... Biology Laboratory (EMBL) promises to answer this question for some of the smallest and trickiest components in the cellular toolbox. Their work appears in the current issue of the Public Library of Science's on-line journal, PLoS Biology. A protein consists of a sticky string of amino acids which usually f...

Discovering the first steps in transcription-coupled repair

...r are the cause of Cockayne Syndrome, although the question remained whether was the problem was inability to deal with damaged DNA or a subtle defect in general transcription," says Cooper. "To understand the exact nature of the problem we first needed to know how stalled RNAPII is recognized." The protein ...

Scientists narrow the time limits for the human and chimpanzee split

...nids and other primate species that pertain to the question of the human-chimp divergence. "While this research does not pinpoint the precise time of the split, it tells us that proportional differences on branches in family trees should be considered when proposing new times. For example, we now know that ...

New malaria vaccine shows promise in early clinical trial

... early HIV and malaria vaccine trials, the crucial question is whether these immune responses mean that vaccinated people are actually protected against malaria. The straightforward way to test this is to expose the vaccinated trial participants to malaria and see if they are protected. However, this risky te...

Bacteria that cause tooth decay able to survive without important biochemical pathway

...f chemistry at The Ohio State University. "The big question now is discovering how these proteins are targeted...s, he said. "Really, we started with a very basic question related primarily to S. mutans, 'how does this bacteria tolerate acid?'" said Brady. "Asking that qu...

How the neuron sprouts its branches

...t of the average cell. So, it was an entirely open question where all the membrane components came from to generate the complex surface of growing dendrites. And we thought these remote structures we had discovered in dendrites called Golgi outposts might play a role." The researchers studied the dendritic g...

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