Tag: "natural" at biology news
UCLA researchers discover novel pathway that may promote immune system balance
...ammation. While inflammation is part of the body's natural
defense system against infection, Shuai said, unbalanced inflammation can make people more vulnerable to diseases such as cancer. The PIAS1 pathway serves as the Yin to the inflammation triggering Yang, working to keep a healthy balance in the imm...
Pesticides choke pathway for nature to produce nitrogen for crops
...ation or exposure to crops through runoff disrupt natural
nitrogen-fixing communications between crops and s...cle," Fox said, because it reduces a legume crop's natural
need for nitrogen fixation but leaves a shortage of natural
nitrogen in the soil for the next year's...
Reprogrammed fibroblasts identical to embryonic stem cells
...e consisted of both the reprogrammed cells and the natural
cells from the original embryo, the fluorescent tags indicated that the reprogrammed cells contributed to all tissue types in the mouseeverything from blood to internal organs to hair color. Next, they bred these mice and found lineages of the rep...
Better chemistry through living models
...ternatives to platinum, the team will be guided by natural
systems like those in species of bacteria and alga...te the function but not the exact structure of the natural
enzymes. Recent structural studies of hydrogenase enzymes from these microorganisms have revealed ...
Bigger horns equal better genes
... theory of ageing, which is the idea that, because natural
selection weakens with age, genetic mutations have effects that accumulate over time. Therefore, differences in genetic quality become more apparent as an organism ages. Coltman noted that his study, which incorporated genetic samples from more th...
The fisherman is a predator like any other
...movement strategies similar to those described for natural
predators, such as albatross or seals. Attributes ...ergence found between prey search by fishermen and natural
predators could change our general perception of human activity in marine ecosystems exploited for f...
Researchers find 24 species believed new to science in Suriname rainforest
...uriname while protecting the nations most valuable natural
assets. The RAP survey, from Oct. 25-Nov. 6 in 2...ts, birds, fish and insects indicative of the lush natural
environment. In their final report, the scientists call for improved conservation management of th...
Study warns climate change and deforestation will lead to declines in global bird diversity
Global warming and the destruction of natural
habitats will lead to significant declines and extinctions in the worlds 8,750 terrestrial bird species over the next century, according to a study conducted by biologists at the University of California, San Diego and Princeton University. Their s...
Human ancestors learned to walk upright in the trees, say experts
...nt work by the team shows that orang-utans use the natural
springiness of branches to save energy in movement, especially when crossing from one tree to another, and this may also be the case when they move bipedally in small branches. Walking upright on two legs, gripping branches with the feet and balanc...
Math that powers spam filters used to understand how brain learns to move our muscles
...ays the artificial brain in the computer, like its natural
counterpart, is guided in part by a special kind of statistical probability theory called Bayesian math. Unlike conventional statistical analysis, a Bayesian probability is a subjective opinion, that measures a learners individual degree of belief...
Researchers discover inherited mutation for leukemia
... also may provide new insights into the process of natural
cell death. They may even lead to new strategies for treating the disease. The research is to be published in the June 1 issue of the journal Cell. It was led by researchers at the Ohio State University Comprehensive Cancer Center. The mutation...
Manchester researcher wins Libyan award
...dentification of viruses and microorganisms within natural
and forensic environments. Numerous genetic diseases have been found to be the result of a change of a single base pair in DNA. These single nucleotide polymorphisms (SNP) may cause changes in the amino acid sequence of important proteins. Methods se...
An 'elegant' idea proves its worth 25 years later
The simple notion of copying the bodys own natural
"waste disposal" chemistry to mop up potentially toxic nitrogen has saved an estimated 80 percent of patients with urea cycle disorders --- most of them children according to a report in this weeks New England Journal of Medicine summarizing a quart...
In search of the biological significance of modular structures in protein networks
... via a simple model of gene duplication, without a natural
selection preference for modularity. ...
Natural compound and exercise boost memory in mice
WASHINGTON, DC May 29, 2007 A natural
compound found in blueberries, tea, grapes, and co...n important advance because it identifies a single natural
chemical with memory-enhancing effects, suggesting that it may be possible to optimize brain functio...
Climate change signal detected in the Indian Ocean
... features of the ocean that cannot be explained by natural
variability," said CSIRO oceanographer Dr Gael Alory. "These oceanic changes are almost certainly linked to changes in the heat structure of the atmosphere and have led to a rise in water temperatures in the sub-tropical Indian Ocean of around two ...
Skimmed milk -- Straight from the cow
...covered that some cows have genes that give them a natural
ability to produce skimmed milk and plan to use this information to breed herds of milkers producing only skimmed milk. The researchers also plan to breed commercial herds producing milk with the unique characteristics required to make a butter th...
Departure to cold water corals and other 'hot spots'
...f QUEST in order to investigate the deep-sea under natural
conditions during which samples will also be taken. The investigation at the cold water corals, the mud volcano and the "garden house" underwater observatory are all part of the European HERMES project. This project coincides with the Internation...
Vaccine hope for malaria
...entity. Using blood from a group of people with natural
immunity to the disease, a team from the School of Biology refined and strengthened the antibodies using a new animal testing system which, for the first time, mimics in mice the way malaria infects humans. When injected into mice, these antibodies p...
A close-up on pancreatic disease: How do we improve the odds?
... difficult based on the absence of good, long-term natural
history data on the behavior of these lesions. We are confident that based on these results, very small tumors with no other symptoms or radiographic indicators have a very low-risk of malignancy, and enrollment in a surveillance program for monitor...
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