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Tag: "matter" at biology news

Vanishing beetle horns have surprise function

...ion of horned beetles' wild protrusions has been a matter of some consternation for biologists. Digging seemed plausible; combat and mate selection, more likely. Even Charles Darwin once weighed in on the matter, suggesting -- one imagines with some frustration -- the horns were merely ornamental. In this...

New clues to how sex evolves

...es, on the other hand, are all very much alike, no matter which chromosome they're on. It could be that C. elegans, which is hermaphroditic and grows to maturity in only three days, is under a lot of competitive pressure to reproduce quickly, and that different binding sites on different Pairing Centers mak...

Researchers link ocean organisms with increased cloud cover and potential climate change

... The impact of isoprene on atmospheric particulate matter was previously thought to be important only for terrestrial plants, Nenes said. The researchers stumbled upon the phytoplankton-cloud connection quite accidentally. "While looking at the satellite pictures, I noticed that cloud properties over la...

Natural anti-viral enzyme helps keep cancer cells alive, researchers find

...not been previously seen. It's a straightforward matter to block the action of TBK-1, so this might be a promising avenue for new cancer treatments, Dr. White said. Because that would also interfere with the body's immune function, however, a balance would have to be found between killing cancer cells and...

A buffet for early human relatives

...vert sunlight, water and carbon dioxide into plant matter and oxygen. Carbon isotope ratios reveal the extent to which the relatives of early humans ate so-called C3 plants, which include fruit and leaves from trees in both the forest and savanna, and C4 plants, which grow mostly on the savanna and include ...

Reef warns of sea level rise

...opogenic CO2 from the atmosphere and it would be a matter of concern if their ability to do this decreased under global warming. If levels continue to increase, to above 500 ?600 parts per million as many scientists expect to be the case by 2050, then the climate shifts and warming effects and will become...

Detailed 3-D image catches a key regulator of neural stem cell differentiation in action

...the first generation of inhibitors and now it is a matter of chemically synthesizing them, testing them in test tubes and cells, and imaging them bound to Scp1 in 3D," says Noel. This will set the stage for the rational fine-tuning of their efficacy using an established process Noel likens to molecular dent...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...t tons of methane gas when they break down organic matter in flooded rice fields. AGU panelist Ralf Conrad of the Max-Planck-Institute for Terrestrial Microbiology in Germany will describe a group of archaea known as Rice Cluster I, which he and his coworkers have identified as the predominant methane produ...

Drug can quickly mobilize an army of cells to repair injury

...enic cells from bone marrow of human patients in a matter of hours instead of days, as was the case with a related agent called G-CSF. Angiogenic cells reside mainly in the bone marrow, and when mobilized they can circulate in the bloodstream, homing to sites of injury and helping repair and regrow blood v...

Artificial cornea offers better results for infants, some blind patients

...ion at an early age, it's permanently affected, no matter how well the eye is focused later on. That's why it's crucial to intervene early on." So far in Rochester, approximately 25 infants and children have been outfitted with the Boston device since 2003, including children from France and the United K...

Down syndrome: It's not just the age factor

...irth to a child with Down Syndrome is not simply a matter of how old she is. Although it is a fact that as women get older, they are more likely to have a child with Down Syndrome, other factors also play a role. According to Markus Neuhäuser and Sven Krackow, from the Institute of Medical Informatics, Bi...

Spelling out cancer on the nanoscale

...led out internally, if we could only read them. No matter how small, every tumor reveals its identity in tiny amounts of abnormally expressed proteins called oncoproteins. Being able to read trace oncoprotein levels from early-stage tumors would speak volumes to physicians and cancer researchers. Enter nano...

The first tree genome is published: Poplar holds promise as renewable bioenergy resource

...nology-based methods of producing fuels from plant matter (biomass) cost-effectively. Earlier this year DOE published a study summarizing the views of over fifty leading scientists in the field of biofuels research that expressed optimism about the prospects for finding cost-effective methods to produce...

Flu shot effective against drifted influenza, nasal spray vaccine less so

...more specific understanding of which viral changes matter and which don't. There are many things about vaccine protectiveness that we still don't completely understand." "It may be that the difference in effectiveness between the shot and the spray can be attributed to poorer protection against type B inf...

Extraordinary life found around deep-sea gas seeps

... can convert these energy-rich chemicals to living matter (a form of 'chemosynthesis') in the absence of sunlight. New Zealand is one of the few places in the world where at least four types of chemosynthetic habitats occur in close proximity, allowing scientists to address key questions about the patter...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...nce on alcohol may limit rapid recovery from white matter brain injury. "Modern neuroimaging enables us to monitor morphological, metabolic and other functional brain changes. Usually this has been applied to evaluate the degree and speed of brain degeneration in illnesses such as Alzheimer’s disease or ...

High hourly air pollution levels more than double stroke risk

... This showed that high hourly rates of particulate matter (in excess of 200 ug/m3) around two hours before death were associated with a more than doubling in the risk of death from a bleed into the brain. The findings held true, irrespective of the average daily level of air pollutants. No such effect was...

Protect patients from exploitation by alternative medicines industry

...EU initiative to bring forward legislation on this matter is welcomed.?...

Found -- the apple gene for red

... good, consumers are far less likely to buy it, no matter how good it might taste. "As well as giving apples their rosy red hue, anthocyanins are also antioxidants with healthy attributes, giving us plenty of reasons to study how the biochemical pathway leading to apple colour is regulated." A Post Doc...

Tweedle coat fashions stocky flies

...es them appear compressed. "It's not a trivial matter to put a shell on from the inside," explained Steven Wasserman, a professor of biology who headed the research team. "An insect needs to build up the flexibility, strength and shape of each part before sealing the outside. If you've ever peeled a g...

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