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The first DFG research centers to be funded for another four years

Following a successful second funding period, the first three DFG Research Centres will again be extended and will continue for another four years. This decision was made by the Joint Committee of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) at its spring session in Bonn. ...

Cancer: Another step towards medication

This release is available in German . The gene Myc is an important factor for the growth of organisms by cell division. It causes the production of a protein which, as a transcription factor, controls the expression of up to 15 % of all human genes. When this gene mutates to an oncogene,...

Arctic ice on the verge of another all-time low

Following last summer's record minimum ice cover in the Arctic, current observations from ESA's Envisat satellite suggest that the extent of polar sea-ice may again shrink to a level very close to that of last year. Envisat observations from mid-August depict that a new record of low sea-ice co...

Viral recombination another way HIV fools the immune system

When individuals infected with HIV become infected with a second strain of the virus, the two viral strains can exchange genetic information, creating a third, recombinant strain of the virus. It is known that the presence of multiple viral strains, called superinfection, frequently leads to a lo...

Ocean acidification -- another undesired side effect of fossil fuel-burning

Up to now, the oceans have buffered climate change considerably by absorbing almost one third of the worldwide emitted carbon dioxide. The oceans represent a significant carbon sink, but the uptake of excess CO2 stemming from mans burning of fossil fuels comes at a high cost: ocean acidification. ...

For good or ill Ireland gains another mammal species

Dave Tosh, from the School of Biological Sciences at Queens University, found the greater white-toothed shrew in Tipperary and Limerick while working with University College Cork and BirdWatch Ireland. Its natural range is in parts of Africa, France and Germany and before now the closest it has be...

Desert woodrats switch one dietary poison for another

As the U.S. Southwest grew warmer between 18,700 and 10,000 years ago, juniper trees vanished from what is now the Mojave Desert, robbing woodrats of their favorite food. Now biologists have narrowed the hunt for detoxification genes that let the rodents eat the toxic creosote bushes that repla...

Desert woodrats switch one dietary poison for another

As the U.S. Southwest grew warmer between 18,700 and 10,000 years ago, juniper trees vanished from what is now the Mojave Desert, robbing woodrats of their favorite food. Now biologists have narrowed the hunt for detoxification genes that let the rodents eat the toxic creosote bushes that repla...

Same gene protects from 1 disease, opens door to another

CORVALLIS, Ore. Botanists at Oregon State University have discovered that a single plant gene can cause resistance to one disease at the same time it produces susceptibility to a different disease the first time this unusual phenomenon has ever been observed in plants. The finding, published ...

Male contraception: One door opens, another closes

We have often heard that a new male contraceptive is "five to ten years" away. But are we getting any closer? The answer may finally be "yes." This week marked the announcement of one hot new lead and one dead end. A door opens Researchers in Italy and at the Population Council in New Yo...

'Acid rain' and forest mass: Another perspective

A few years ago the study of the effects of atmospheric deposition on forest ecosystems reached beyond the scientific sphere and the term "acid rain" was coined. This problem, which ignores frontiers, happens because, due to the burning of fossil fuels, the amount of sulphur and nitrogen oxides in ...

One bacteria stops another on contact

Scientists have discovered a new phenomenon in which one bacterial cell can stop the growth of another on physical contact. The bacteria that stop growing may go into a dormant state, rather than dying. The findings have implications for management of chronic diseases, such as urinary tract infecti...

Bumblebees copy one another when contending with unfamiliar flowers

Researchers have reported findings that offer a surprising new twist to our understanding of how bumblebees, a vital floral pollinator, select the flowers from which they collect nectar. When faced with unfamiliar plants, foraging bees do not choose flowers entirely alone but instead copy the choic...

NJIT Presidential Award winner takes stem cell research another step

Treena Arinzeh, a young professor who last year won a Presidential Award, the nation's highest scientific honor, is bringing the promise of stem cell research one step closer to reality. Arinzeh, PhD, assistant professor of biomedical engineering at NJIT, is researching the use of stem cells to i...

Advances in lung cancer research announced at conference

...TD; and the School of Computing, Informatics and Decision Systems Engineering at Arizona State University's Ira A. Fulton School of Engineering. In another presentation, Dr. Weiss discussed the release this week by Threshold Pharmaceuticals Inc. and the Virginia G. Piper Cancer Center at Scottsdale Health...

Carbon nanoparticles toxic to adult fruit flies but benign to young

...t may be hazardous), but the form the nanoparticle is in," Rand said. In another experiment led by Daniel Vinson, an undergraduate student in engineering, a...carbon nanotubes carried the carbon on their bodies from one test tube into another and deposited some of the particles in the clean tube. That test showed how...

New cancer drug delivery system is effective and reversible

... helped pioneer the use of aptamers as targeting molecules for drug delivery. "This is the first study to integrate the aptamers and the liposome." another advantage of using aptamers as targeting agents is that they are easily disabled. They readily bind to complementary DNA, which prevents them from int...

Mary had a lot of lambs: Researchers identify way to accelerate sheep breeding

...time between heats. "If a ewe doesn't get pregnant when she is supposed to, instead of a year, it's only 73 days [using the STAR system] until she has another opportunity," Thonney said. While the STAR system requires better nutrition and more farm labor to manage the lambing, each lambing event involve...

Wastewater produces electricity and desalinates water

...produce water with 3.5 grams of salt per liter, which is less than brackish water. Brackish water would contain only 0.5 grams of salt per liter. another problem with the current cell is that as protons are produced at one electrode and consumed at the other electrode, these chambers become more acidic ...

University of Hawaii at Manoa researchers reveal ocean acidification at Station ALOHA

...eginning of the industrial age, CO 2 -driven acidification of the surface oceans has already caused a 0.1 unit lowering of pH, and models suggest that another 0.3 pH unit drop by the year 2050 is likely. Continued acidification of the sea may have a host of negative impacts on marine biota, and has the pote...

'Green' energy from algae

... the harvesting and decomposition of algae. To close the cycle for the complete use of algae biomass for energy production, KIT researchers even go another step forwards. The biomass remaining after extraction (60 70%) is planned to be con-verted into other energy carriers like hydrogen or methane by mea...

Symposium to discuss geoengineering to fight climate change at the ESA Annual Meeting

...violet light hitting the Earth's surface," she says. "In this case, the recovery of the ozone hole over the Antarctic could be delayed by decades." another large-scale geoengineering scheme is fertilizing the oceans with iron to increase carbon uptake from the atmosphere. Charles Miller of Oregon State Un...

Understanding how weeds are resistant to herbicides

...can do this with waterhemp and we can do this with another weed and we can compare the two are there things ...n Georgia, where there's a lot of Palmer amaranth another pigweed evolving resistance, can go straight to that data base and get gene sequence data." another outcome of having this genomic data is to be able ...

Lead-based consumer paint remains a global public health threat

..." says Clark. Their research showed that one large multi-national company produced low lead paint in each of the countries where it was sampled and another company was found to have stopped using lead in paints in one country during the course of our study. "These two observations document the fact th...

Animal and plant communication at the ESA Annual Meeting

... Animals and plants communicate with one another in a variety of ways: behavior, body patterns, and even chemistry. In a series of talks at the Ecological Society of America's annual meeting, to be h...

Holding breath for several minutes elevates marker for brain damage

...nning and long-distance swimming. One study also reported that individuals suffering sleep apnea had elevated levels of S100B in the morning, although another study indicated there had been no change in S100B overnight. ### Editor's Notes: To arrange an interview with Dr. Andersson, please contact Ch...

Restoring a natural root signal helps to fight a major corn pest

...ute for Chemical Ecology and the University of Neuchtel in Switzerland, together with contributions from colleagues in Munich and the US, has produced another first: the successful manipulation of a crop plant to emit a signal that attracts beneficial organisms. Genetic transformation of maize plants resulte...

August 2009 Geology and GSA Today media highlights

...ish are now extinct but were common inhabitants in the Silurian seas. The stepwise changes observed among the fish faunas resemble those of conodonts, another extinct group of vertebrates, suggesting a similar mode of life and response to the Lau Event. Super-heavy pyrite (34Spyr > 3...

Antibody targeting of glioblastoma shows promise in preclinical tests, say Lombardi researchers

... ALK very similar to the developing brain. "When the brain is developing, it needs to constantly remodel itself," he says. "Glioblastoma appears to be another example of cancer that develops when embryonic genes are upregulated. As a result, brain tumor cells are extremely motile and can invade other parts o...

K-State researcher, collaborators study virulence of pandemic H1N1 virus

...e have no drug to treat infected patients. And because we don't have a vaccine yet in the United States, this might be a problem. "Pandemic H1N1 is another example of how important it is to work on the nexus of human and animal health," he said. ...

Douglas-fir, geoducks make strange bedfellows in studying climate change

... that wider growth rings reflect low river flows during that year, which is another valuable piece of climate information. "We're not sure why low river flo... while low-flow events may be associated with higher food levels. But it is another example of how aquatic organisms can provide valuable information on climat...

'Microfluidic palette' may paint clearer picture of biological processes

...s are generated by diffusionthe gentle movement of matter from one point to another by random molecular motion. Microfluidic systems usually mix fluids more ac...ects of a wide range of mixed drug concentrations on the same cell type. another potential application of the microfluidic palette is the study of chemotaxi...

Jet-propelled imaging for an ultrafast light source

...amage, always one of the fundamental limitations to imaging in biology. another quick pulse could be diffracted from another copy of the protein in a different orientation. As the process is repeated,...

Naming evolution's winners and losers

...heir low rate of speciation. They must have something working for them that has allowed them to persist. In species richness, these are losers, but in another sense, this highlights how unique they are. There are incredibly disparate patterns of species richness." Tuataras were a bit more diverse in th...

Humans 'damaging the oceans'

...ure, toxic pollution, alien species and disease. The combined effect is to weaken the ability of many species to withstand these multiple stresses. another risk is that warming will unlock vast reserves of frozen methane in the seabed, triggering uncontrollable, runaway global warming. "In the face of ...

Experimental treatment halts hypoxic-ischemic brain injury in newborns

...hat distribute cerebrospinal fluid throughout the organ. The researchers found that injection of PAI-1 greatly reduced the activity of both tPA and another brain enzyme, urokinase-type plasminogen activator. It also blocked hypoxic-ischemia-induced activation of matrix metalloproteinases and damage to the...

Test helps in fight against lung infections and for treating other life-threatening infections

...sed in CF lung infections was added. The patient responded to the treatment, was discharged and is still symptom free after more than one year. In another case, a patient was on a lung transplant waiting list, and was receiving oral and inhaled antibiotics, but showed a continuous decline in health and l...

Fox Chase researchers uncover one force behind the MYC oncogene in many cancers

...mal inversion a genetic misalignment, where part of the chromosome containing the DLX5 gene gets flipped around during cell division cooperates with another known oncogene, AKT2, to drive cancer in mice. In the current paper, the researchers discover that DLX5 binds to and actively promotes the activity of...

Stress signals link pre-existing sickness with susceptibility to bacterial infection

... infection. Like humans, Dictyostelium can be infected by Legionella and quickly responds by producing a host of metabolism-associated proteins. another similarity between humans and Dictyostelium is that both use AMPK as an internal sensor to coordinate energy synthesis with energy needs. However, ...

All-in-1 nanoparticle: A Swiss Army knife for nanomedicine

...rby cells. But combine a quantum dot and a gold nanoparticle, and the effects disappear. The electrical fields of the particles interfere with one another and so neither behaves as it would on its own. The two have been successfully combined on a surface, but never in a single particle. The paper descr...
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