Tag: "contrary" at biology news

JCI table of contents October 1, 2005

... cells. Inhibiting apoptosis exacerbated disease, contrary to what one might expect for a pathogen that is heavily dependent on T cells for clearance. These findings provide new information regarding apoptosis and host regulation of immunity. TITLE: Apoptosis Modulates Protective Immunity to the Pathogeni...

Warming most evident at high latitudes, but greatest impact will be in tropics

...oftening tundra are causing profound changes. But, contrary to popular belief, the most serious impact in the next century likely will be in the tropics, says a group of researchers headed by a University of Washington ecologist. Scientists have noted warming at higher latitudes that already appears to be ca...

New amphibian species result from exploration, not from rule changes

... Institute of Biological Sciences, indicates that, contrary to some published expert opinions, new amphibian discoveries are a consequence of increasing exploratory effort, not of changing criteria for recognizing a species, or "taxonomic inflation." The authors of the new analysis, Jrn Khler of the Hessische...

Bone marrow may be source of new egg-cell generation in adult mammals

...rs announced surprising findings that female mice contrary to longstanding theories of mammalian reproductive physiology retained the ability to make new egg cells or oocytes into adulthood. Now the same investigators report new data supporting the earlier research and identifying a potential source for th...

Geckos: It's not always about sex

...eckos doesn't need sex or a male to reproduce and, contrary to expectations, these "Wonder Woman" geckos can run farther and faster than their sexually reproducing relatives. The research findings are published in the journal Physiological and Biochemical Zoology (Vol. 78, 3, May/June 2005) by Michael Kearney...

Making a brain

.... Edward De Robertis and colleagues now show that, contrary to this traditional belief, BMP signaling is, in fact, sustained at comparable levels in dissociated ectodermal cells as in intact Xenopus embryos. The researchers find that it is the activation of Ras/MAPK signaling, and subsequent cross-talk betwee...

Study uncovers bacteria's worst enemy

...so be found at the site. The study also shows that contrary to the conventional wisdom, when it comes to these environmental bacteria, plutonium is less toxic than uranium and, in general, actinides are less toxic than other types of metals. This suggests that actinide toxicity will not impede bioremediation ...

'You can't buy conservation,' suggests survey of Africa's rain forest parks

... conservation," said Struhsaker. "Our evidence was contrary to beliefs expressed by such organizations as the World Bank -- that investment in economic development around parks aids in their success. "For example, subsidizing agriculture around the parks generates income, but it also attracts more people, exa...

The circadian clock: Understanding nature's timepiece

...etwork of groups that perform different functions contrary to the previously held belief that each cell did the same thing. Antle, an emerging leader in the field, has two new papers on the subject: one is featured on the March cover of the prestigious Trends in Neurosciences, and another is due out in a for...

Plants respond similarly to signals from friends, enemies

...scientists also discovered that, like rhizobia and contrary to popular belief, the root-knot nematode signals plants from a distance and therefore does not need to attach itself to the plant to elicit a response. When the researchers studied L. japonicus plants missing the receptors that receive signals from...

HHMI professor, 138 undergraduates identify essential genes in eye formation

...egments during cell division. This runs completely contrary to what the students learned in high school biology, said Banerjee. Recombination normally occurs when organisms make sperm and eggs but does not occur when an organism's other cells divide, the process of mitosis. What makes mitotic recombination po...

The very unexpected life and death of a leukemic cell

... death rates of the leukemic cells and found that, contrary to expectations, production and destruction of CLL cells is highly variable, and does not exhibit a steady birth and death rate as previously thought. The data also reveal that a correlation exists between the rate at which CLL cells are born and the...

JCI Table of Contents, March 1, 2005

... death rates of the leukemic cells and found that, contrary to expectations, production and destruction of CLL cells is highly variable, and does not exhibit a steady birth and death rate as previously thought. The data also reveal that a correlation exists between the rate at which CLL cells are born and the...

What does an airline traveler have in common with a glowing fish?

...he periodicity of its circadian clock. They find, contrary to earlier studies, that aspects of circadian rhythms are not hardwired into the embryo, but develop in specific stages. To do this, the researchers created a transgene that places expression of the firefly luciferase gene under the control of the ...

Don't count on vitamin C to boost your exercise performance

...) benefit you in terms of health and exercise, but contrary to what many people thought previously, ascorbic acid doesn't seem to help physical exercise performance. And in terms of such endurance exercise as running, walking or cycling, whereas vitamin C reduces physiological "oxidative stress," that reducti...

How running made us human

...to the evolution of running." That conclusion is contrary to the conventional theory that running simply was a byproduct of the human ability to walk. Bipedalism the ability to walk upright on two legs evolved in the ape-like Australopithecus at least 4.5 million years ago while they also retained the abi...

Red wine mist? Resveratrol shows potential effects against COPD, asthma, arthritis

...r release from human airway epithelial cells." And contrary to earlier conjecture, the Imperial College researchers showed that "resveratrol did not act as an estrogen or glucocorticosteroid," each of which have patient acceptance issues. Resveratrol from red wine has long been associated with the so-called ...

ASPB opposes proposed ban of GMOs in Humboldt county ballot measure M

...eprint' for the organism's development." However, contrary to the Measure's definition, DNA is a nucleic acid and not a complex protein. This flawed definition in itself may make the proposed ordinance unenforceable. A review of the scientific literature shows that genetically engineered food...

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(Date:10/28/2014)... in German . ... acquire sufficient food when times are lean? By studying ... d,Ivoire researchers of the Max Planck Institute for Evolutionary ... how great apes can acquire extra energy needed to ... their sleeping nests more en route to breakfast sites ...
(Date:10/28/2014)... to expand the Office of Rare Diseases Research ... Sciences (ORDR-NCATS) collaborative Rare Diseases Clinical Research Network ... 22 consortia will work with 98 patient advocacy ... treatments for patients with rare diseases. The collaborations ... 2014 funding from NIH. , Rett syndrome, MECP2 ...
(Date:10/28/2014)... differences in moving activity in a novel environment ... angling, according to an experimental study completed at ... Game and Fisheries Research Institute. The study used ... and authentic angling trials to analyse if behaviours ... reared in traditional and enriched hatchery rearing environments. ...
Breaking Biology News(10 mins):The early chimp gets the fig 2The early chimp gets the fig 3NIH's ORDR-NCATS RDCRN & NICHD awards U54 cooperative agreement for natural history study 2NIH's ORDR-NCATS RDCRN & NICHD awards U54 cooperative agreement for natural history study 3Fish 'personality' linked to vulnerability to angling 2
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