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Tag: "behind" at biology news

Africa to take it on chin again with climate change

...ct of greenhouse gas increases, is the main factor behind the Sahel's recent swing from drought to moist conditions, the researchers believe. "Changes in the Indian and Atlantic oceans are causing large regional effects in Africa, and these have substantial impacts on people. Now we can explain these clima...

Basis for DNA ejection from single phage particles

...archers have gained insight into the driving force behind this poorly understood injection process, which has been proposed in the past to occur through the release of pressure accumulated within the viral particle itself. Almost all phages (also known as bacteriophages) are formed of a capsid structure, o...

The circadian clock: Understanding nature's timepiece

...eep-deprived person with critical responsibilities behind it all. When someone shifts their schedule, we want to find a way to shift their body with them so they remain alert, working optimally and making the right decisions." Antle also hopes to experiment further with a technique that involves resetting ...

Molecular fossils uncover link between viruses and the immune system

...us sequences diverge rapidly and they do not leave behind physical fossils due to their small size, these methods could not be used in studies of the evolution of viruses. ...

Stealth Worms May Improve Insect Pest Control

... soil or in encrypted habitats such as the pockets behind the bark of trees, the juvenile nematode waits for (or sometimes actively seeks) an unsuspecting host - a grub or a larva - to jump on it and penetrate it through the insect's natural openings - mouth, anus, spiracles. Or the nematode may enter the h...

Hydrogen and methane provide raw energy for life at 'Lost City'

..., and hundreds of smaller structures. Steep cliffs behind the field are shingled with carbonate. ...

15-year hunt finds cause of pseudothalidomide syndrome

...ted a 15-year-plus search for the genetic problems behind the very rare Roberts syndrome, whose physical man...line section of Nature Genetics, proves that genes behind very rare inherited diseases can now be found, offering excellent opportunities to strengthen unders...

Bee mites suppress bee immunity, open door for viruses and bacteria

...." While researchers know that the Varroa mite is behind the death of bee colonies, the mechanism causing the deaths is still unknown. Yang and Dr. Diana L. Cox-Foster, Penn State professor of entomology, now believe that a combination of bee mites, deformed wing virus and bacteria is causing the problems ...

Scientists use manufacturing methods to reconstruct mastodon

... a lot of my research. Once the exhibit opening is behind us, I hope to be able to concentrate more on the interpretation of this animal's history and what it can tell us about late Pleistocene events." Leading up to the exhibit opening, the museum is offering a semester-long series of public educational e...

Newly discovered protein an important tool for sleeping sickness research

...ay an important role in the gene silencing process behind antigenic variation. With the goal of learning how the organism regulates the process of antigenic variation, the scientists have been trying to understand how the trypanosome makes base J. The discovery of JBP2, a member of a protein family that he...

Breakthrough System for Understanding Ocean Plant Life Announced

...ay an important role in the gene silencing process behind antigenic variation. With the goal of learning how the organism regulates the process of antigenic variation, the scientists have been trying to understand how the trypanosome makes base J. The discovery of JBP2, a member of a protein family that he...

Chronic Sinus Infection Thought To Be Tissue Issue, Mayo Clinic Scientists Show It's Snot

... than the tissue during surgery. Leaving the mucus behind might predispose patients for early recurrence of the chronic sinus infection." Dr. Ponikau conducted this research along with Hirohito Kita, M.D., and Gail Kephart, Mayo Clinic allergic diseases researchers. David Sherris, M.D., and Eugene Kern, M....

Discovery of New Dopamine Action May Yield Alternative Psychiatric Drugs

...d previously been observed. However, the mechanism behind that inactivation remained unclear. In the current study in mice, the Duke team found that Akt inactivation by dopamine involves the formation of a previously unidentified complex containing beta-arrestin 2, Akt and a third protein phosphatase 2A th...

Team Invents Device For Weighing Individual Molecules

...be published in the near future. The Caltech team behind the zepto result included Dr. Ya-Tang Yang, former graduate student in applied physics, now at Applied Materials; Dr. Carlo Callegari, former postdoctoral associate, now a professor at the University of Graz, Austria; Xiaoli Feng, current graduate st...

Scientists inhibit cancer gene

...s team will now examine more closely the mechanism behind how DGK iota works to inhibit tumor formation. ...

It's electric: Cows show promise as powerplants

...ntiful on most farms, as harvesting usually leaves behind plenty of it in the form of crop residue in the fields. The other chamber, the cathode, was filled with potassium ferricyanide, a chemical that acts as an oxidizing agent to round out the electrical circuit. Two small pieces of plain graphite serve...

Cats' indifference towards sugar explained

... in PLoS Genetics explains the molecular mechanism behind their strictly carnivorous behavior. "We took a behavioral question and answered it molecularly," says Joseph Brand, senior author of the study and Associate Director of the Monell Chemical Senses Center. Scattered on mammalian tongues are specializ...

New tool reveals secrets of migrating cells

...as deeply as longer, redder wavelengths. The idea behind two-photon imaging is that if you hit a dye molecule in a short period of time with two photons of light, each photon half the energy needed to excite it, the dye can absorb them together and then fluoresce. The less energetic, long-wavelength photon...

Can our genes tell the story of our divergence?

... tumor-suppressor and apoptosis genes. The factors behind this pattern are unclear, but the authors suggest that studying the genes' other functions, in immunity or spermatogenesis, may offer clues to selective pressures. It could be, for example, that there is a battle between the interests of sperm cells ...

Scientists discover stem cell origin of neck and shoulders

...ionary changes over millions of years and are also behind a number of serious human illnesses. This is an active area of research that we are involved in." ...

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