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Tag: "actually" at biology news

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

...urological function. However, it wasn't known what actually initiated myelin production. The neuregulin gene encodes a growth protein made by neurons. Last year a group of German scientists discovered that it was implicated in determining the thickness of the myelin sheath around axons; however, until now i...

Researchers develop new method for studying 'mental time travel'

...cts would recall next, several seconds before they actually remembered that item. The study was conducted by Kenneth Norman, an assistant professor of psychology, and Sean Polyn, who earned his Ph.D in psychology from Princeton in 2005 and is a now a postdoctoral researcher at the University of Pennsylvania....

Removing egg from nest may help save endangered whooping crane

... research found, however, that taking one egg away actually increases the probability of nest success. His paper--co-authored by Subhash Lele from the U of A's mathematical and statistical sciences department as well as Brian Johns from the Canadian Wildlife Service-- is published in the December issue of Bio...

Why Christmas trees are not extinct

...me. Sperry calls that "remarkable." And water flow actually was better in conifers than in flowering trees in terms of resistance to flow per unit area of wood. The pits or valves that connect the water conduits in trees not only carry water up trees from the roots, but also prevent air from entering the co...

Health benefits of a Christmas brandy

... smooth full-flavoured brandy this Christmas could actually benefit your health, Monash University researchers...y distilling process but we have found this is not actually the case," he said. The research, by Dr Troup and Dr Steve Langford from the School of Chemistry, f...

New study shows patients more willing to consider self-injectable HIV therapy than many physicians anticipate

...tients who are potentially eligible for FUZEON had actually discussed this injectable option with their physic...ions in trying to match treatments to patients may actually be limiting the use of FUZEON in those patients who are most likely to benefit," said Rob Horne, Pro...

Dangerous tricksters: Some bacterie use immune cells to reproduce

...ve or even multiply in these macrophages which are actually supposed to kill them. One of these pathogens is Rhodococcus equi. This bacterium can cause a lung disease in young foals which is very similar to tuberculosis in humans. Hence, it is not too surprising that Rhodococcus equi is closely related to t...

Male elephants woo females with precise chemistry

...ios of frontalin's enantiomer composition, "you're actually changing the message signals, and you end up having a signal that is essentially different," Greenwood added. "It's not just a single message." The research team analyzed secretion samples from six male elephants and found that the pheromone is firs...

Newly discovered birdlike dinosaur is oldest raptor ever found in South America

...previously considered to be a very primitive bird, actually constitute a separate branch of the dromaeosaurid family tree. This branch is distinct from Velociraptor and other Laurasian dromaeosaurids, including some of the famous feathered dinosaurs from China. Because Rahonavis has long and wing-like forel...

Scientists observe how a close bond activates the immune system

...e of activation. But the new work shows that it is actually the outer edge of immunological synapse that boosts activation, not the center. Dr. Dustin's group is now conducting additional experiments to see if dendritic cells actively present proteins to T cells in patterns that stimulate the periphery of t...

Science's Breakthrough of the Year: Watching evolution in action

...nuts and bolts of his theory -- how does evolution actually work in the world of influenza genes and chimpanzee genes and stickleback fish armor? Studies that follow evolution in action claim top honors as the Breakthrough of the Year, named by Science and its publisher AAAS, the nonprofit science society. ...

Max Planck researchers make a breakthrough in plant stem cell research

...influence on how many cells in the apical meristem actually stay stem cells. However, until now, it was unclear how hormones and regulatory genes, such as WUSCHEL work together to maintain this fine balance at the tip of the shoot. The working group led by Dr. Jan Lohmann at the Max Planck Institute for Deve...

Tsunami + 1 year: Reviving exhausted fisheries should trump replacing boats, gear, experts say

...the grim possibility that efforts to rebuild might actually send their communities on a downward path to economic misery is very real." WorldFish says data on fish stocks is lacking for the specific places most affected by the tsunami but suspects the situation mirrors that throughout the neighbouring area. ...

Scientists map one of biology's critical light-sensing structures

...tes that sense red and far-red light. The light is actually detected by a specialized pigment that sits within a pocket on the protein. Red and far-red light, says Forest, have the effect of reversibly changing the structure of the pigment in the pocket, which then flips a switch on the protein to trigger the...

Genetic testing still smart choice, despite uncertainties

...of Reproductive Medicine, reveals the technique is actually highly reliable. But because there is a slim chance a genetic abnormality can cause doctors to misdiagnose embryos, some concerns still need to be addressed, the researchers said. Preimplantation genetic diagnosis has been used for more than a dec...

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

...d mathematical data analysis developed by Galán to actually detect a working memory trace. In the current research, the scientists studied clusters of neurons called glomeruli within the honeybee's antennal lobe (AL), considered the invertebrate equivalent of the brain's olfactory bulb. Team member Marcel W...

Penicillin, amoxicillin: Step aside for strep throat treatment

...power, resulting in a throat full of bacteria that actually shield strep germs from the older drugs. At least four types of bacteria that Pichichero called "co-pathogens" become more dominant in the throat of someone who has received the drugs frequently. It happens in much the same way that the hardened thug...

Looking for the genes that affect a person's level of response to alcohol

...r ability to stand still is impaired, so that they actually do move back and forth." In addition, all of the participants supplied blood samples that were used to look for linkages of their LR characteristic to selected chromosomal regions. Results indicate that an area on chromosome 10 is potentially linke...

Key brain regulatory gene shows evolution in humans

...tical method as being likely to be under selection actually do something important in terms of function," said Wray. "The human version increases expression of the gene and production of prodynorphin, which is the direction of change we predicted." The researchers also found evidence of evolutionary selectio...

New brain scan technology could save babies' lives

...ng brain anatomy, but cannot show how the brain is actually functioning, e.g. in terms of oxygen supply and blood flow. Combining the advantages of MRI and ultrasound but avoiding their disadvantages, MONSTIR, the first scanner of its kind in the world, uses an innovative technique called optical tomography ...

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