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Unexpected in Biological News

1-finger exercise reveals unexpected limits to dexterity

"Push your finger as hard as you can against the surface. Now as hard as you can but move it slowly - follow the ticking clock. Now faster. Now faster." These were the commands for volunteers in a simple experiment that casts doubt on old ideas about mechanisms to control hand muscles. Complete...

Yeast missing sex genes undergo unexpected sexual reproduction

DURHAM, N.C. An emerging form of the pathogenic yeast Candida is able to complete a full sexual cycle in a test tube, even though it's missing the genes for reproduction. And it may also do so while infecting us, according to Duke University Medical Center researchers. "Sex contributes to t...

Red pandas reveal an unexpected (artificial) sweet tooth

PHILADELPHIA (April 15, 2009) -- Researchers from the Monell Center report that the red panda is the first non-primate mammal to display a liking for the artificial sweetener aspartame. This unexpected affinity for an artificial sweetener may reflect structural variation in the red panda's sweet ...

New and unexpected mechanism identified how the brain responds to stress

Calgary, AB -- Chronic stress takes a physical and emotional toll on our bodies and scientists are working on piecing together a medical puzzle to understand how we respond to stress at the cellular level in the brain. Being able to quickly and successfully respond to stress is essential for surv...

UT Knoxville professor finds unexpected key to flowering plants' diversity

KNOXVILLE -- What began with an off-the-cuff curiosity eventually led Joe Williams to hang from the limbs of a tree 80 feet above the soil of northeastern Australia. The things Williams, a University of Tennessee, Knoxville, researcher found there may help explain the amazing diversity in the w...

Plant biologists discover unexpected proteins affecting small RNAs

LA JOLLA, CA - Now that high school biology students can recite that genes are made of DNA, which is transcribed into messenger RNA (mRNA), which is then translated into protein, along comes a new class of molecules, sending studentsand many scientistsscrambling for updated textbooks. A study b...

Researchers explore altruism's unexpected ally -- selfishness

Binghamton, N.Y. -- Just as religions dwell upon the eternal battle between good and evil, angels and devils, evolutionary theorists dwell upon the eternal battle between altruistic and selfish behaviors in the Darwinian struggle for existence. In a new study published in the Proceedings of the Na...

Quakes under Pacific floor reveal unexpected circulatory system

Jan. 7, 2008Zigzagging some 60,000 kilometers across ocean floors, earths system of mid-ocean ridges plays a pivotal role in many workings of the planet, from its plate-tectonic movements to heat flow from the interior, and the chemistry of rock, water and air. It was not until the late 1970s that...

CU-Boulder technology used to identify unexpected bacteria in cystic fibrosis patients

Molecular technology developed by a University of Colorado at Boulder professor to probe extreme life forms in undersea hydrothermal vents has been used to identify unexpected bacteria strains in the lung fluid of Denver children suffering from cystic fibrosis, findings that may lead to more effec...

Amazon forest shows unexpected resiliency during drought

Drought-stricken regions of the Amazon forest grew particularly vigorously during the 2005 drought, according to new research. The counterintuitive finding contradicts a prominent global climate model that predicts the Amazon forest would begin to "brown down" after just a month of drought and ...

St. Jude study shows genes play an unexpected role in their own activation

Investigators at St. Jude Children's Research Hospital have discovered how a single molecular “on switch” triggers gene activity that might cause effects ranging from learning and memory capabilities to glucose production in the liver. The “on switch,” a protein called CREB, is a transcription ...

UF scientist finds unexpected link between cat and human AIDS viruses

Emerging relationships between the two viruses could one day lead to a vaccine for human A University of Florida researcher has discovered an unexpected link between the viruses that cause feline and human AIDS: Cats vaccinated with an experimental strain of the human AIDS virus appear to be at ...

The very unexpected life and death of a leukemic cell

B cell chronic lymphocytic leukemia (CLL) is an incurable disease in which cells in the bone marrow grow and survive to the point where they become abnormal and malignant (leukemic). The progression of the disease is slow and there has been a lack of information regarding the rate of production of ...

La Jolla Institute discovers novel tumor suppressor

... in this way independently of its enzyme activity," he said. "It's quite an unexpected finding and it definitely has the potential for helping the scientific comm...Kawakami said he and his research team got their first inkling of something unexpected fairly early on in their experiments. "We wanted to better understand the ...

Extraterrestrial platinum was 'stirred' into the Earth

...estern Australia are delighted that this is a completely academic outcome which came out of an industry-funded project. "It is a nice example of an unexpected fundamental discovery arising from a practical applied science study and demonstrates the very positive collaborations that exist between CSIRO and th...

Little-known protein found to be key player

...y 29, 2009) -- Italian and U.S. biologists this week report that a little-understood protein previously implicated in a rare genetic disorder plays an unexpected and critical role in building and maintaining healthy cells. Even more surprising, their report in the journal Nature shows that the protein, called...

Earliest animals lived in a lake environment, research shows

...onditions were like for them important information for addressing the broader questions of how and why animals appeared when they did. "It is most unexpected that these first fossils do not come from marine sediments," Kennedy said. "It is possible, too, that similarly aged or older organisms also existed i...

Knee injuries may start with strain on the brain, not the muscles

... they were able to react quickly and safely to the unexpected command. The research suggests that training the brain to respond to unexpected stimuli, thus sharpening their anticipatory skills when faced with unexpected scenarios, may be more beneficial than performing ...

Grant supports LSUHSC research on how like cell receptor systems determine very different functions

...e pathway," Dr. Catling says. "The beauty of research is that no one knows just how useful their findings will be in the future there may be entirely unexpected benefits in addition to more predictable outcomes." These key personnel and the data they generate are essential to submit a competitive renewal of...

Spring cold snap helps with stream ecosystem research

... member of the Environmental Sciences Division. In this case, a freeze caused the Walker Branch stream to prosper, but an ecosystem cannot count on unexpected weather events to maintain productivity. "The stream ecosystem cannot depend on an Arctic air mass moving in every year, killing the leaves and exp...

UCLA researchers discover new molecular pathway for targeting cancer, disease

...archers, utilizing this new treatment pathway could have broad applications in the cancer field. "This discovery identifies an entirely new and unexpected mechanism of hedgehog pathway modulation," said study author Dr. James A. Waschek, an expert on Hh signaling in brain tumor development and a professo...

2000-year-old statue of an athlete sheds light on corrosion and other modern challenges

... was discovered in 1998 on floor of the Adriatic Sea. While the discovery was a bonanza for archaeologists and art historians, it also proved to be an unexpected boon to scientists trying to understand biomineralization. That's the process in which animals and plants use minerals from their surroundings and for...

Iron and biological production in the high-latitude North Atlantic

... Southampton scientists have demonstrated an unexpected role of iron in regulating biological production in the high-latitude North Atlantic. Their findings have important implications for our understanding...

Researchers see evidence of memory in the songbird brain

... of its own species, the experience changes gene expression in its brain in unexpected ways, researchers report. The sequential switching on and off of thousands ...ting itself from too much disturbance, Clayton said. "Whenever something unexpected and different comes along, such as the song of a new bird in the neighborho...

Salt block unexpectedly stretches in Sandia experiments

...ect world desalination efforts, which involve choosing particular sizes of nanometer-diameter pores to strain salts from brackish water. Understanding unexpected salt deformations also may lead to better understanding of sea salt aerosols, implicated in problems as broad as cloud nucleation, smog formation, ozo...

Mouse model provides clues to human language development

...e Leipzig study demonstrates the usefulness of the German Mouse Clinic. Only through broad-based, comprehensive analysis can scientists recognize even unexpected effects of genetic defects and thus identify additional functions of known genes. ...

Scientists sequence genome of the N2-fixing, soil-living bacterium Azotobacter vinelandii

...entre in the United Kingdom, "The international collaboration created by the Azotobacter genome project was an integral part of the discovery of these unexpected anaerobic processes in A. vinelandii , which confirmed the importance of this organism as a host for the expression and purification of oxygen-sensit...

Global sunscreen won't save corals

...ng its eruption in 1991. But critics have warned that such a scheme might also alter rainfall patterns, damage the planet's ozone layer, or have other unexpected effects. Until the current study, which used a computer model of the Earth's climate system and biosphere to simulate the effect of geoengineering...

Tracking down the causes of multiple sclerosis

...ied and an international research team have succeeded in attaining three important new insights into the disease. It would appear that B cells play an unexpected role in the spontaneous development of multiple sclerosis and that particularly aggressive T cells are activated by different proteins. Furthermore, a...

American Chemical Society's Weekly PressPac -- June 3, 2009

...ethyldecahydroquinoline class, which were present among several other alkaloids. ARTICLE #2 FOR IMMEDIATE RELEASE "N-Methyldecahydroquinolines: An unexpected Class of Alkaloids from Amazonian Poison Frogs (Dendrobatidae)" DOWNLOAD FULL TEXT ARTICLE: http://pubs.acs.org/stoken/presspac/presspac/full/10.1...

Aluminum-oxide nanopore beats other materials for DNA analysis

...d membrane. An electron beam is then used to create a very tiny hole a nanopore in the membrane. The process of making the nanopore resulted in an unexpected bonus, Bashir said. "As the electron beam forms the nanopore, it also heats the surrounding material, forming nanocrystallites around the nanopore. Th...

'Disordered' amino acids may really be there to provide wiggle room for signaling protein

... Sections of proteins previously thought to be disordered may in fact have an unexpected biological role providing certain proteins room to move -- according to a study published by researchers at Fox Chase Cancer Center in this month's i...

Plant Min protein sits tight and rescues E. coli

...lant cells, and the conservation of MinD, MinE and FtsZ genes in plants was already an indication of some conservation of function. Nonetheless it is unexpected and exciting to find that plant MinD can collaborate with bacterial MinC to convert E. coli from an oscillating to a Bacillus-type mechanism of Min ...

Bolivian rainforest study suggests feeding behavior in monkeys and humans have ancient, shared roots

...protein each day, regardless of whether they only ate ripe fruit or mixed in other vegetable matter as well. Finding this result in spider monkeys was unexpected because, previously, ripe fruit specialists were thought to be 'energy maximisers'. In other words, they would aim to maximise their daily energy inta...

MIT reels in RNA surprise with microbial ocean catch

...mples while preserving the microbes' natural gene expression has yielded an unexpected boon: the presence of many varieties of small RNAs snippets of RNA that ac...ut the environmental conditions and how these microbes influence those. The unexpected presence and abundance of these small RNAs, which can act as switches to re...

Scientists map West coast areas most affected by humans

...lying them at a regional scale, the scientists were able to test how well the results predicted regional ocean health. "We found two remarkable and unexpected results in this research," said Halpern. "Ocean management needs to move beyond single-sector management and towards comprehensive ecosystem-based man...

Searching for pollution in the Caribbean

...mere 55-kilometere drive from San Pedro Sula, where the team was based. But despite their early start, the morning traffic from San Pedro Sula and the unexpected mechanical problems with the boats diesel engine meant the expedition had to start much later than they had originally anticipated. And now this... ...

Your brain on -- and off -- caffeine

...he most rigorous demonstration to date of physiological effects of caffeine withdrawal. The researchers also discovered a provocative and somewhat unexpected finding that there were no net benefits associated with chronic caffeine administration. "In addition to looking at caffeine withdrawal, this rig...

Symposia selected for Entomological Society of America meeting

...Bioenergy Insect Molecular Physiology: Basic Science to Applications Serendipity: Celebrating the Synchrony of Ideas, Colleagues, and Science in unexpected Ways Teaching: Ideas to Contemplate - ESA Distinguished Achievement Award in Teaching Winners ...

Aware, Inc. Announces Preliminary Results of Dutch Auction Tender Offer

..., are subject to risks and uncertainties and are not guarantees of future performance. Results may differ materially due to various factors such as an unexpected number of shares improperly tendered or withdrawn or other variations in the depositary's preliminary count statements regarding the expected number o...
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