day 2 4

Tag: "day" at biology news

Roundup®highly lethal to amphibians, finds University of Pittsburgh researcher

...atory of Ecology. "We added Roundup®, and the next day we looked in the tanks and there were dead tadpoles all over the bottom." Relyea initially conducted the experiment to see whether the Roundup® would have an indirect effect on the frogs by killing their food source, the algae. However, he found tha...

Tamoxifen-like drug suggests new ways to selectively block estrogen

...ficity. We are moving, he said, "very close to the day where a proteomic profile of a tumor will determine the best SERM or SERD or other endocrine therapy that will yield maximal benefit in the clinic." New tools such as the Advanced Photon Source at Argonne National Laboratories are making this sort o...

Understanding how bacteria communicate may help scientists prevent disease

...nication process known as quorum sensing could one day help scientists prevent a broad range of diseases caused by bacteria that are human pathogens. How do bacteria know how many are present? Each bacterium releases a small molecule, called an autoinducer. Each bacterium also has receptors ?proteins on...

Scientists discover odd-ball rodent

...years ago. "To find something so distinct in this day and age is just extraordinary. For all we know, this could be the last remaining mammal family left to be discovered," Dr. Timmins said. Very little is known about the Kha-Nyou, other than it seems to prefer areas of limestone outcroppings and fores...

Does vitamin C help prevent or treat the common cold? Maybe not, after all.

... single very high dose of the vitamin (8 g) on the day their symptoms started and experienced a shorter illness compared with people who took a placebo pill. (3) The authors say that the results in this single trial are "tantalising and deserve further assessment." Douglas and Hemilä's article summarize...

Bacterial genome sheds light on synthesizing cancer-fighting compounds

...s the desired patellamides, compounds that may one day be used in cancer treatment. Despite decades of attempts, scientists could not successfully cultivate Prochloron in the laboratory once the bacterium was isolated from the sea squirt. Because samples of Prochloron were easily contaminated with remna...

Chickadees can help humans get their bearings

...g your car in the parking lot at the end of a long day in the office. This discovery points to the fact that our early experiences influence how we solve such problems and could mean that by varying the environments that we encounter early in life, we could broaden and hone our spatial navigation abiliti...

It's electric: Cows show promise as powerplants

...to identify," Christy said. "The hope is that one day livestock farmers could use their farm's livestock waste lagoon as a huge fuel cell and generate enough power for their operation," Rismani-Yazdi said. ...

Deep sea algae connect ancient climate, carbon dioxide and vegetation

...arp decrease and then stabilization to near modern day levels between 34 - 25 million years ago. During the early part of the Paleogene Period, from 65 - 34 million years ago, global climates were much warmer than today with very little ice present at the poles. The boundary of the Oligocene and Eocene ...

Invasive parasite destroying fish species

...arp decrease and then stabilization to near modern day levels between 34 - 25 million years ago. During the early part of the Paleogene Period, from 65 - 34 million years ago, global climates were much warmer than today with very little ice present at the poles. The boundary of the Oligocene and Eocene ...

Stem cells grown in lab mirror normal developmental steps

...arp decrease and then stabilization to near modern day levels between 34 - 25 million years ago. During the early part of the Paleogene Period, from 65 - 34 million years ago, global climates were much warmer than today with very little ice present at the poles. The boundary of the Oligocene and Eocene ...

Researcher gets NSF grant to create mutant maize lines

...ble to researchers. The new maize lines could one day lead to plants with tailor-made properties, such as higher protein or vitamin content or easier-to-digest starch for ethanol production. Funded by a new five-year, $3.8 million National Science Foundation (NSF) grant, the project will generate some ...

International Team Determines Geographic Origin of Leprosy

...lth officials better understand leprosy in present day human populations, says Christine Sizemore, Ph.D., of NIAID's Division of Microbiology and Infectious Diseases. Aggressive therapy with multiple drugs has helped drive down the number of registered leprosy cases around the world, notes Dr. Sizemore. ...

Malaria killing a million a year

...w York, Geneva and Cairo. "This is just my second day at UNICEF, but it makes sense that my first public statement helps make the case for fighting a largely preventable and utterly treatable disease," Executive-Director Ann Veneman said in New York. "It is a disease that kills one child in sub-Saharan ...

How monarch butterflies are wired for navigation

... the butterflies are to compensate for the time of day in using their "sun compass." The researchers' techniques include molecular analysis of butterfly brain proteins, as well as flight tests in which the scientists manipulated the light reaching their insect subjects and measured the navigational resp...

Using computers and DNA to count bacteria

...under our feet. The bacterial communities of every day soil are intensely complex, so diverse and densely populated, that normal measurement methods are overwhelmed. "With improved analytical methods, we show that the abundance distribution and total diversity of soil-borne bacteria can be deciphered,...

Scientists turn tobacco against cancer

...ibodies, raising hopes that the technology can one day be used in humans. Scientists, led by Hilary Koprowski, M.D., professor of microbiology and immunology and director of the Biotechnology Foundation Laboratories and the Center for Neurovirology at Jefferson Medical College of Thomas Jefferson Univer...

Comparison of Cocaine, Methamphetamine ‘Highs?Finds Differences

...under our feet. The bacterial communities of every day soil are intensely complex, so diverse and densely populated, that normal measurement methods are overwhelmed. "With improved analytical methods, we show that the abundance distribution and total diversity of soil-borne bacteria can be deciphered,...

Fluorescing lab worms signal longer life spans

... predict the life span in an organism on the first day of adult life based on how it responds to stress,"...y given that the predictions are made on the first day of adult life," Johnson said. Obtained from jellyfish and widely used in genetic experiments, the g...

Unraveling a stomach cancer puzzle

...R, says that these basic research findings may one day impact directly on the treatment of stomach and other cancers. "We've demonstrated that by lowering Stat3 hyperactivity we can suppress stomach cancer formation, importantly without affecting Stat3's other important roles in the body. Add to that the...

1 2 3 4 5 6 7 8 9 10