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Tag: "within" at biology news

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

...ast. While the flesh of a dead whale decomposes within weeks, the bones can last anywhere from 60 to 100 years. "As that happens, the bacteria that break down the bones release sulfur," Daly said. "A whole community of aquatic creatures uses that sulfur to make energy, much like plants convert light i...

Study warns deep-sea mining may pose serious threat to fragile marine ecosystems

...re at risk from seafloor mining scheduled to begin within this decade, says a new study led by a University ...ill use a strip-mining approach to remove deposits within the top 20 metres of the seafloor, using remotely operated underwater mine cutters and a hydraulic p...

Genome of yellow fever/dengue fever mosquito sequenced

...asites; they appear to do nothing except replicate within the genome. Others are used by the host -- the individual organism's genetic machinery --to perform biological functions." TEs may be developed as genetic tools to study the interaction between mosquitoes and pathogens, and thus may lead to contr...

Danish researches solve virus puzzle

...or example HIV and bird flu able to make the cells within a human body work for the purpose of the virus? Researchers at the University of Copenhagen shed new light on this question. The research is a collaboration between molecular biologists and physicists. ”The molecular biologists have knowledge of how...

Intelligent materials to regenerate bone tissue

... tissue. Seven other bodies, leaders in innovation within this specialism, are also taking part in the project. The goal is to come up with a substitute for bone tissue that can put the bone right and regenerate in such a way that it carries out similar functions as in its natural state. From Spain the Inst...

Detecting poisons in nectar is an odour-ous task for honeybees

...ed not to respond to odours associated with toxins within 20 min of eating toxins, and would retain this ability up to 24 hours after eating a toxin. This suggests that honeybees can react to toxins in nectar, but that this ability may mainly be after they have ingested the toxins....

Discovery of 'master switch' for the communication process between chloroplast and nuclei of plants

...ed for integrating multiple stress-derived signals within the chloroplast. This work was conducted by the first co-author of the article, Ajit Nott, who was a research associate in Dr. Chory’s lab. Many of the nuclear genes that encode chloroplast proteins are regulated by a "master switch" in response to...

City ants take the heat

...naware of the more rapid warming that has occurred within major cities. In fact, large cities can be more th...at islands. These researchers discovered that ants within South America's largest city—São Paulo, Brazil—could tolerate heat better than ants from outside thi...

Deconstructing brain wiring, one neuron at a time

...e dozens of different neuronal types are entangled within a precisely connected network, and even neighborin...ut to provide the missing gene by some other means within the initially infected cells," says Ian Wickersham, Ph.D., postdoctoral researcher and lead author o...

Researchers wake up viruses inside tumors to image and then destroy cancers

...ys to activate the reproductive, or "lytic" cycle, within the virus to make it replicate within the tumor cell. When enough viral particles are produced, the tumor will burst, releasing the virus....

Corals that can fight global warming may one day help fragile reefs

...tions, such species as corals are only comfortable within a 12-degree temperature range. And rising global t...plexities arise from different levels of symbiosis within a coral, both with bacteria on the surface and algae in the interior. Moreover, the warmer waters ca...

Leeches ferry infection among newts

... it is still unclear if the spores are multiplying within the leech, or simply ferrying on its proboscis. Even though the infection is not fatal to the newts, it could affect their numbers, says Raffel . "When newts get infected, they often stop breeding, apparently to shore up their immune system to fig...

Whiteflies and plant viruses can help each other to speed up biological invasion

.... Soon similar outbreaks were seen in other States within the USA and many other countries around the world. The outbreaks of the B whitefly have often been followed by pandemics of a group of plant viruses called begomoviruses on crops such as tomato and tobacco. These viruses are transmitted by this white...

In young mice, gregariousness seems to reside in the genes

...nd that specific genes may influence how they feel within different social contexts. Identifying the gene or genes at play, says Lahvis, is the next step. "We now know that social motivation can be responsive to genetic factors, but we don't know what these factors are."...

Scientists see DNA get 'sunburned' for the first time

...s examined damage to isolated DNA strands, not DNA within a cell. Sunburn results from a series of chemical reactions in a living cell, and so this experiment did not allow them to see a cell sustain sunburn. This is, however, the first time anyone has observed the initial molecular events behind damage ...

Rapid response was crucial to containing the 1918 flu pandemic

...cials imposed multiple social containment measures within a few days after the first local cases were record...eries of public health measures to contain the flu within two days of the first reported cases. Philadelphia, New Orleans and Boston all used similar interven...

Study examines genetic risk factors for Alzheimer's disease

...GALP?which could affect the development of tangles within brain cells, a hallmark of Alzheimer’s disease. Professor Julie Williams, School of Medicine, who leads this project with Professor Micheal Owen said: “Whilst these genes are likely to make modest contributions to disease more work needs to be don...

Stanford-led study closes in on genes that may predispose some people to severe depression

...can that looked for evidence of genetic "linkage" within families between depression and DNA markers on the various chromosomes. The linkage study identified regions worthy of more intensive examination. The second study was a more detailed look at the most suspicious of these regions, located on ch...

Study suggests some drug resistance to influenza B medications

...gh drug selection, or whether they are transmitted within families or acquired from the community, the resistant variants may be here to stay. In light of the recent observation that oseltamivir may be less effective against influenza B than against influenza A, an important concern is whether suboptimal do...

Gut research yields new anti-cancer approach

...L. Schaefer, Ph.D., a research assistant professor within the Department of Medicine, Gastroenterology and H...size) and caused cells to self-destruct, generally within 24 hours. Further experiments showed that high-dose PPARgamma inhibition destroyed cancer cell micro...

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