Tag: "flip" at biology news

How does day length affect aggression in mice? It's in the genes

...to less aggressive behaviors, Trainor said. The flip side of this finding is that estrogen increases aggression in short-day mice through different cellular mechanisms not involving genomic pathways. While it would be difficult to test that hypothesis directly, neuroscientists know that when hormone...

'Junk' DNA now looks like powerful regulator, Stanford researcher finds

...tricate choreography of when and where those genes flip on as the animal lays out its body plan. In particular, the group found the sequences to be especially abundant near genes that help cells stick together. These genes play a crucial role early in an animal's life, helping cells migrate to the correct...

Structural basis for photoswitching in fluorescent proteins brought into focus

...nt dark as the rings rotated about 180 degrees and flip by some 45 degrees, coming to rest in a non-coplan...ecome negatively charged. This causes the rings to flip back into the fluorescent state. Having control of light emission would allow for more precise stu...

Winners of the 2006 AAAS Science Journalism Awards

...e New Mexico desert. "Kids who don't really give a flip about the debate over evolution that surrounds their classrooms relate to lizards," said Jeff Nesmith of Cox Newspapers. Laura Helmuth of Smithsonian magazine said Geiger used "clear, amusing, colorful language" in describing natural selection, sp...

Central and peripheral signals set the circadian liver clock

...n. By controlling liver clock function with the flip of a molecular switch, the authors showed that only 10% of circadian genes follow temporal expression patterns in the absence of liver oscillators. The authors think these genes probably respond to physical or chemical signals controlled by the maste...

Rural America more prepared for disaster -- also more vulnerable

...may have livestock. They can't wait for someone to flip the switch. They are more prepared for disaster. They have generators, kerosene heaters, snow plows and other equipment." Tornadoes, flooding, winter storms, and hazardous material accidents can strike a city as well as a farm. But in urban communit...

Blame our evolutionary risk of cancer on body mass

... would be nice to have that healing power, but the flip side of it is runaway cell reproduction--cancer." Up until now, scientists assumed that mice could afford to express telomerase, and thereby benefit from its curative powers, because their natural risk of developing cancer is low--they simply die bef...

Winners of the 2006 AAAS Science Journalism Awards

...e New Mexico desert. "Kids who don't really give a flip about the debate over evolution that surrounds their classrooms relate to lizards," said Jeff Nesmith of Cox Newspapers. Laura Helmuth of Smithsonian magazine said Geiger used "clear, amusing, colorful language" in describing natural selection, sp...

Changing length of days reverses how estrogen affects aggressiveness in mice

... to less aggressive behaviors, Trainor said. The flip side of this finding is that estrogen increases aggression in short-day mice through different cellular mechanisms not involving genomic pathways. While it would be difficult to test that hypothesis directly, neuroscientists know that when hormones...

Molecular mechanism provides intra-cellular traffic signal

...d out of cellular compartments. Activator proteins flip the switches on. One activator protein, called TRAPP, coordinates two Ypt switches for quick entrance and subsequent exit from a central cellular compartment known as the Golgi apparatus. "The Golgi is a central station in all cells, through which a...

UVA researchers find that hotel guests with colds can leave their germs behind after checkout

...asked to dial phone numbers, hold the handsets and flip on light switches in both rooms. Sixty percent of the contacts with contaminated objects that dried for an hour resulted in rhinovirus transfer to fingertips. Thirty-three percent of contacts with objects that dried overnight resulted in rhinovirus t...

Coral death results from bacteria fed by algae

...cts that accelerate further loss of corals. On the flip side, however, if algae are controlled by abundant fish populations, then the reef gains a capacity for recovery from other forms of disturbance, like hurricanes and sea warming."...

A new way to build bone

...ts. "If you could find a small molecule that would flip 10 percent of the existing NFATc into the active form," Crabtree said, "you could favor the formation of osteoblasts and make stronger bones."...

DNA-wrapped carbon nanotubes serve as sensors in living cells

...eturn the emission energy to its initial value and flip the DNA back to the starting form, making the process reversible and reusable." The researchers demonstrated the viability of their measurement technique by detecting low concentrations of mercury ions in whole blood, opaque solutions, and living mam...

Losing sleep undoes the rejuvenating effects new learning has on the brain

...a room, something healthy individuals do easily. A flip side is that people with these lesions tend to associate familiar stimuli with new information more rapidly than healthy counterparts, a phenomenon called attention switching. This suggests that learning to ignore stimuli and rapid attention switchin...

Carnegie Mellon U. transforms DNA microarrays with standard Internet communications tool

...that begin as one value (0 or 1) may inadvertently flip to the opposite value as they move from one computer to the next in the form of an email. This data loss, ascribed to noise in the communication channel, is checked by counting the number of 1's in the message. If this number is odd, then the last bi...

Decrease cancer-suppressing protein activity, increase life span

... cancers carry p53 mutations. There is, however, a flip side to this guardian gene. When p53 is hyperactive - pumping out higher-than-normal levels of tumor-suppressing protein - it accelerates aging and shortens life span in mice. "What this new work shows is that there is a 'golden mean' with p53," said...

Researchers predict infinite genomes

...ch is to spotlight a species's core genome. On the flip side, scientists may eliminate a core genome, hunting instead for fringe genes that explain a specific strain's unique activity. TIGR researchers say the pan-genome concept also underscores the limits of traditional known genomes. Researchers often r...

Purdue scientists see biochemistry's future - with quantum physics

...lecules centered upon transition metals, which can flip back and forth between different spin states under certain conditions, Rodriguez theorized that it was this variability in spin state that was influencing the rate of these reactions. To explore whether this effect, which Rodriguez calls spin-depende...

Scientists get first glimpse at how plants, most animals repair UV-damaged DNA

... the portion of the DNA that contains the dimer to flip outwards from the coil and into the pocket. Then, when a photon of visible light hits the pocket, the enzyme becomes excited, and expels one of its own electrons into the dimer, which forces a rearrangement of the atoms in the DNA. "From our work, we...

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(Date:10/16/2014)... new synthesis of recent research findings to inform their ... two states. , The Ecology and Management of ... Synthesis of the Relevant Biophysical Science and Implications for ... the U.S. Forest Service,s Pacific Northwest Research Station, is ... a synthesis of the large body of scientific information ...
(Date:10/16/2014)... , October 16, 2014 NXT-ID, Inc. ... the "Company"), a biometric authentication company focused on the ... leading edge technologies including Wocket™, the Smart Wallet, at ... Conferenece. FiRe is a leading global conference on the ... Hosted by Mark Anderson , founder and publisher ...
(Date:10/15/2014)... an unexpected extent. The outbreak does not follow the ... a new disease dynamic in regions, where it has ... National Academy of Sciences Leopoldina, acatech – the German ... the German Academies of Sciences and Humanities have presented ... the statement the academies call for the following consequences ...
Breaking Biology News(10 mins):New report synthesizes best available science on management of moist mixed-conifer forests 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5
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