Tag: "direct" at biology news

Wisconsin scientists find portal to show animals evolve

...ished through changes in the genetic switches that direct how genes work. "This is smoking gun evidence of how animal patterns evolve," says Sean B. Carroll, a UW-Madison professor of genetics and the senior author of the Nature paper. While discovered in flies, it is almost certain that the same mechan...

Bayou blues: Working to save the US from the worst potential oil, gas and fishing crisis

...damaging a few oil rigs, and it didn't even have a direct hit. There's no telling how high the price of oil...photographs of wetlands from space. Students have direct access to and control of a digital camera flying on board the International Space Station and can do...

Women's health, tissue regeneration is focus of Illinois & Carle Hospital initiative

..., precisely at a time when the public is expecting direct health-care benefits from years of investing in ge...physicians to create solutions and advancements in direct patient care. Our vision at Carle Foundation Hospital is to claim our position as a research organi...

Melatonin shrinks bird gonads. What does the popular supplement do in humans?

... the mature peptide, GnIH, and it appeared to be a direct effect. The melatonin is binding to the GnIH neurons in the hypothalamus of quail," he said. To look more closely at the role melatonin plays in the reproductive cycle of quail, the researchers also raised male birds under different lighting conditio...

Columbia study suggests brushing your teeth may reduce risk of stroke and heart attack

...lumbia University Medical Center provides the most direct evidence to date that preventing gum disease could...y connect it to atherosclerosis. "This is the most direct evidence yet that gum disease may lead to stroke or cardiovascular disease," said Mose Desvarieux, M...

Study finds direct association between cardiovascular disease and periodontal bacteria

...the authors, these data mark the first report of a direct association between cardiovascular disease and bacteria involved in periodontal disease, inflammation of the gums that affects to varying degrees an estimated 200 million Americans. But the researchers say the findings are not proof that the bacteri...

Experimental domestication of foxes yields clues to cognitive evolution

...ying domestication in dogs occurred as a result of direct selection for communicative ability or instead as a correlated by-product of breeding selection against fear and aggression toward humans. To better understand how dogs evolved their unusual social cognitive ability, the researchers studied an experi...

Falling ants glide back to trunk to avoid dangers of forest floor

... ants the only wingless insects known to actively direct their fall were first observed last year outside Iquitos, Peru, by insect ecologist Stephen P. Yanoviak of UTMB. While perched 100 feet up in the rainforest canopy waiting for mosquitoes to alight and feed on his blood, Yanoviak casually brushed off...

New RNA polymerase discovered in plants

...ard thinks that Pol IV helps make siRNAs that then direct DNA methylation to sequences matching the siRNAs. The results were published in Cell online, Feb. 10, 2005 and will appear in the March, 2005 print version of the journal. "Pol IV is somehow involved in maintaining the integrity of ...

JCI Table of Contents, March 1, 2005

...es. Clearly, decreasing liver IRS expression has a direct causative role in the pathogenesis of diabetes and is not merely a correlative observation. TITLE: Complementary roles of IRS-1 and IRS-2 in the hepatic regulation of metabolism AUTHOR CONTACT:C. Ronald Kahn Joslin Diabetes Center, Boston...

Promising anti-TB compound finally can be synthesized with ease

... quantities. The UB chemists describe the direct synthesis in the laboratory of the natural product isolated from the Pseudopterogorgia corals. They now are applying the synthesis method to other members of this class of compounds called diterpenes, some of which also have activity against TB...

UCLA scientists transform HIV into cancer-seeking missile

...s. "Our next step will be to test whether we can direct therapeutic genes to the precise location where cancer cells reside," Chen said. "This approach offers many potential applications for controlling cancer and other diseases." "We may be able to boost immune-system surveillance at tumor sites, ident...

Study methods, strains of Pfiesteria are both critical in determining organism's toxicity

...t larval fish in small containers with and without direct exposure to Pfiesteria. These tests examined whether direct contact with Pfiesteria was needed to cause death, and whether fish could become sick or die without...

Mouse model of leukemia yields exciting therapeutic implications for rare childhood cancer

A new study provides direct evidence that mutations associated with certain forms of leukemia transform blood cells into abnormal cancer cells. The research, published in the February issue of Cancer Cell, examines the molecular signals involved in this transformation and sugge...

Study links Ebola outbreaks to animal carcasses

...2001 and 2003 produced positive results, and found direct links between the deadly disease in animal populations and humans. "This research proves that hunting and consumption of great apes represent a serious health risk for people in Central Africa, and a risk that can be avoided," said Dr. William Kares...

Open microfluidic and nanofluidic systems

...th the substrate wettability. This constraint is a direct consequence of the strong capillary forces that dominate in the micro- and nanoregime and can be formulated in a quantitative way using the methods of theoretical physics. In general, the development of any new technology requires a systematic unders...

Singers (and parents) take note: Worst songbird rehearsals precede best debuts

...are singing. Until now, however, there has been no direct evidence that sleep affects song learning, and if so, how. (See image) To collect the data used in the study, City College New York behavioral neuroscientists Ofer Tchernichovski and Sbastien Dergnaucourt recorded every vocalization--approximately a ...

Scientists discover how climate change causes the simultaneous boom or bust of multiple populations

...parasite and that these effects -- rather than the direct effects on chick survival -- are the major factor driving grouse populations into synchrony," Hudson reports. "We previously had discovered the temporal mechanism -- that the parasites affect the size of individual populations of the Red Grouse. No...

Pall-Aquasafe protects patients from exposure to waterborne contaminated medical equipment

... aerosols generated by showers and faucets, and 3) direct contact with water used for wound cleansing or reprocessing of heat-sensitive medical devices. The Pall-Aquasafe AQF1C in-line filter is the Company's latest addition to its family of Pall-Aquasafe filters that protect patients from contaminated wate...

Brain controls robot arm in monkey, University of Pittsburgh researcher reports at AAAS

...ept is that, through thought alone, a person could direct a robotic arm a neural prosthesis to reach and manipulate a desired object. As a step toward that goal, University of Pittsburgh researchers report that a monkey outfitted with a child-sized robotic arm controlled directly by its own brain signals ...

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(Date:8/29/2014)... the repeated climatic shifts over the last 120,000 ... diversity, a team of researchers led by City ... developed a new biodiversity metric called "phylogeographic endemism." ... genetic variation within species is restricted in geographical ... biology, and 14 other researchers from institutions in ...
(Date:8/29/2014)... of marine phytoplankton, such as the prolific bloomer ... (thiamine), researchers have discovered. The finding contradicts the common ... eukaryotic microbes depend on scarce supplies of thiamine in ... way to think about the ocean," says CIFAR Senior ... ISME Journal paper with CIFAR fellows John ...
(Date:8/28/2014)... TX Invasives is now available from the Lady Bird ... Austin for identifying harmful non-native plant, insect and other ... United States cause about $137 billion in economic and ... waterways, kill native plants and more. , "By having ... where invasive species occur, we,re more likely to catch ...
Breaking Biology News(10 mins):CCNY team defines new biodiversity metric 2Not all phytoplankton in the ocean need to take their vitamins 2Not all phytoplankton in the ocean need to take their vitamins 3Mobile app makes ID of harmful plants, insects in Texas a snap 2
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