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Tag: "stable" at biology news

Progress toward artificial photosynthesis?

...t enters into many chemical interactions, it is so stable that it nearly always re-forms—an ideal catalyst. It can even be used to activate carbon dioxide. It was thus possible to oxidize benzene (an aromatic six-membered carbon ring) to phenol (which has an additional OH group). The by-product of the react...

Navigable nanotransport

...ntaining biomolecules, such as spermine, in a very stable fashion. The Korean researchers coupled spermine to the vitamin folic acid and packed these hybrid molecules into the capsule's pockets. This gave them capsules with a surface covered with folic acid molecules. What for? Many tumors have a signifi...

Helium helps patients breathe easier

...iversity of Alberta. In the study 10 clinically stable men with moderate to severe COPD were each given four different mixes of gases including room air, while they exercised. During each test they were monitored for exercise time, breathing capacity, work of breathing and symptoms of exertion. The best ...

Latent memory of cells comes to life

...how we look and are. This genetic material is very stable and it is faithfully transmitted to our descendants. Once in a while though, a change occurs to the DNA, either large or small. Such changes are at the origin of the immense and varied animal and plant life on earth. Constructive changes in the DNA, ...

From the deep -- Researchers find new species of sea anemone

... wherever. But these are actually some of the most stable deep sea communities. "A better understanding of deep-sea populations may shed light on how humans drive ecological change, whether it's through whaling or global climate change," she said, and also pointed out that there are now far fewer major w...

Madagascan tropical forests return thanks to better management and well-defined ownership

...while the area with highest population density had stable forest cover," says Thomas Elmqvist, Professor at ...or forest management showed either regenerating or stable forest cover. "Regeneration of tropical forests has so far mostly been studied by ecologists try...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

...enomic studies in clostridia." This remarkable, stable genome demonstrates the wide range of strategies used by bacteria to enhance their chances of survival. For the Clostridia, these range from the approach used by Cdiff — long-term interaction with hosts, which involves evading the immune system and c...

Reconstructing the biology of extinct species: A new approach

...ranches, rocks or cliffs, or the ground. Having a stable image of the environment is especially crucial for acrobatic animals that leap, glide, or fly. To make the discovery, the scientists scanned skull samples of each species, measuring the size of each semicircular canal and calculating the radius o...

Blood-brain barrier breached by new therapeutic strategy

...the efficacy of this delivery system and to make a stable form of siRNA that might yield even better results....

Research finds that circadian rhythms dominate all life functions

...es, considered "housekeeping," have been used as a stable reference platform in gene expression studies. "Anyone who diets, for example, knows you shouldn't eat late, and now we are getting closer to understanding why exactly," said Ptitsyn, a researcher in the Bioinformatics Center at the College of V...

Brightening prospects of using fluorescent nanotubes in medical applications

...plications. Nanotube fluorescence is extremely stable and can last for months. Fluorescent proteins – widely used for imaging living systems – begin fading within a few hours. Quantum dots last several days before degrading. Hertel’s team is currently working on the next step necessary for many biome...

Soils offer new hope as carbon sink

...soil as being labile (liable to change quickly) or stable – depending on how quickly they break down and con...ompost is likely to last two or three years, while stable carbon like agrichar will last up to hundreds of years. "This is significant for farmer costs bec...

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