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Tag: "ones" at biology news

Soils offer new hope as carbon sink

...omposing carbon forms are being replaced by stable ones in the form of agrichar." Unfortunately, agrichar is not widely available. BEST Energies Australia, a company involved with NSW DPI in the trials, has a pilot plant at Gosford which is producing minimal amounts for research purposes. "We are ho...

Modeling the restless brain

...he brain. Fluctuations of similar magnitude -- the ones studied by Sporns and Honey -- occur when a person is at rest, doing nothing. The nature of these "resting state fluctuations" is an active topic of research in cognitive neuroscience, with their mysterious origin prompting one prominent research...

The insect vector always bites twice

... contains numerous proteins, including immunogenic ones that can modulate or induce a human immune response. Working for the EpiVect programme initiated in 2003 (1), scientists from IRD research unit UR 024 studied this still little known response with the aim of identifying in the arthropod vector saliva...

Study shows lizard moms dress their children for success

...ding experiments into the wild, she found that the ones whose mothers had tweaked their back patterns had a clear survival advantage. The highest survival rates were seen in the induced progeny types--yellow-throated lizards of both sexes with barred backs, orange-throated males with striped backs, and bl...

Exploring the dark matter of the genome

...n sequence. And we looked for sequences similar to ones already known from protein databases." These stand...have some 20,000), but the annotators found 32 new ones in the heterochromatin, more than twice as many as previously described. Finally, the annotators...

Weizmann Institute scientists develop a general 'control switch' for protein activity

...e engineered proteins are screened to identify the ones that respond to the drug in a desired manner. Th...l set of engineered proteins is needed to find the ones that respond to the drug. With their greater resources, biotechnology companies will be able to crea...

Ancient retrovirus sheds light on modern pandemic

...ably lie in these ancient viruses more so than the ones that have affected us only recently, such as HIV."...

HIV and malaria combine to adversely affect pregnant women and their infants

...regnancy as well as from women in their subsequent ones living in the Kenyan region where malaria is common. The researchers demonstrated that protection to PAM is mediated by a special type of antibody that allows women to preferentially clear the parasites in their placentas. They found that HIV-infecte...

Common treatment for methamphetamine overdose may damage brain cells

... methamphetamine-treated rats as in saline-treated ones two days after injections. Yamamoto and his colleagues were able to link this rise in glutamate to the death of GABA-containing cells in one part of the substantia nigra. This may predispose some people who have been treated for a methamphetamine ove...

Early exposure to indoor fungus molecules may protect infants against future allergies

...so the surviving microbes are often the infectious ones that can develop resistance to drugs designed to eliminate them." Iossifova says further research is needed to determine how early microbial exposures affect the development of certain allergic conditions—including asthma, dermatitis and hay feve...

Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host

...une systems of all animals, even relatively simple ones like insects, are all very similar. "This is particularly true of the innate immune system, which is the fast-acting battery of defences that recognise and kill microbes to prevent infections from occurring. "Some remarkable discoveries have be...

Maggots rid patients of MRSA

...il War they found that those who survived were the ones with maggots in their wounds: they kept them clean. They remove the dead tissue and bacteria, leaving the healthy tissue to heal. "Still, we were very surprised to see such a good result for MRSA. There is no reason this cannot be applied to many ...

Traumas like Sept. 11 make brains more reactive to fear

...at left them with more lingering symptoms were the ones who had higher activity in their fear centers," said Temple. "We think that the World Trade Center experience was traumatic enough that it left them with hyperactive amygdalae." ...

Students invent protective pouch to enhance cell therapy

...etween two concentric metal stents, similar to the ones used to keep clogged blood vessels open. Once the stents are in place, microcapsules filled with helpful cells are injected into the gap between the stents, where they become trapped within the nylon mesh. Blood flowing through the vessel should nour...

Chemical maps hint at drug's effects on schizophrenia

...modified in schizophrenia are beneficial and which ones result in metabolic side effects. "Clearly we need to put forth a major effort to link the changes in the blood to what happens in the brain," Kaddurah-Daouk said. "If we can apply these findings to the mysteries occurring in the brain, then perha...

The quest for an effective HIV vaccine presents new possibilities, challenges

...accine candidates and to assess the most promising ones in clinical trials." Dr. Johnston adds, "An important research challenge is to determine if these so-called T-cell vaccines that primarily induce a cellular immune response can have a beneficial effect by reducing viral levels and preserving crit...

Growing nerve cells in 3-D dramatically affects gene expression

...parative test. Would the cells be different" Which ones would grow best" To answer that question, Hoffman-Kim and researchers in her lab took a line of cancerous nerve cells and cultured them in different environments. They placed one batch of cells in standard petri dishes coated with collagen. They s...

Fish extinctions alter critical nutrients in water, study shows

...t heavily recycle nitrogen are not always the same ones that recycle the most phosphorus. These differences would make it difficult for conservationists to prioritize species to protect....

Scientists see DNA get 'sunburned' for the first time

... They took specially designed strands of DNA -- ones made solely of thymine bases, in order to boost the chance of observing a reaction between adjacent thymines -- and exposed them to UV light. Then they timed the reactions that caused the new thymine bonds to form. Kohler stressed that he and his ...

Scientists identify pancreatic cancer stem cells

...rentiate into other types of cells -- are the only ones capable of producing tumors. These "cancer stem cells," could derive from normal adult stem cells in organs that have mutated, or from a differentiated cell that has devolved to take on the qualities of stem cells. They are resistant to traditional t...

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