Microfluidic chip helps solve cellular mating puzzle
...ss, while the other was thought to be moonlighting away from its main job in another signaling pathway. "The role of the second type of MAPK was unclear," said Saurabh Paliwal, a doctoral student in Levchenko’s lab and lead author of the Nature article. "Through experiments with a microfluidic chi...Study finds mercury prevalent in many western fish
...chers say, including coal power plants from as far away as China, the burning of heavy oils and other fossil fuels, and even forest fires. In the survey, the researchers did find 13 fish from eight different sites that had very high mercury concentrations ?levels of 1.0 microgram or higher ?likely indi...Army research mission focused on autism
...ring (feces) on the walls. My baby had been stolen away from us." This was the reality Lyn Redwood of the National Autism Association faced when her child was diagnosed with autism. Autism is a developmental brain disorder that affects as many as 1 in 150 children as reported by the Centers for Diseas...Satellites shed light on global warming
...ompletely in January 1995, and Larsen-B that broke away were 200 to 350 metres thick. According to Rott, o... kilometres of Larsen-B remain and will soon break away completely. After the collapse event in 2002, the outlet glaciers from the Antarctic Peninsula t......every day of our lives, as old material is cleared away so that new bone can form. In diseases such as osteoporosis, an imbalance in this process is responsible for the characteristic bone loss. New research at the Weizmann Institute of Science, which recently appeared in the online journal PLoS ONE, has ...Cryoablation -- A new treatment option for some kidney tumor patients
...cryoablation. Radiofrequency ablation (RFA) burns away the tumor, while cryoablation freezes it. Mayo Clinic doctors had previous experience with liver tumor cryoablation when they added kidney tumor cryoablation in 2003. Today’s report contains the largest published results for percutaneous cryoabla...MIT's ocean model precisely mimics microbes' life cycles
...f, have a bit of a reductionist view. We often shy away from the complexity of the real world in our models and prefer to reduce things to the simplest case with fewest factors," said Follows, who went through a sort of conceptual evolution after collaborating with Chisholm for several years. "I finally s...Genes and genius: Researchers confirm association between gene and intelligence
...en, for example, showed that when children grow up away from their biological parents, their IQs are more closely correlated to biological parents, with whom they share genes, than adoptive parents, with whom they share an environment. But in spite of the association between genes and intelligence, it ...Novel laboratory technique nudges genes into activity
... coupled with that from 2005, demonstrates a shift away from conventional thinking about how gene expression is naturally controlled, as well as how scientists might be able to exploit the process to develop new drug targets, Dr. Corey said. For example, current methods to block gene expression, such a...Major link in brain-obesity puzzle found
...he knockout mice that lacked the SH2B1 gene stored away much more fat than normal mice, and had much larger fat cells ?giving them two-and-a-half times more body fat content than normal mice. The mice that had some of their SH2B1 restored in just their brains by genetic alteration did not experience this ...MIT device draws cells close -- but not too close -- together
...ular environment that supports it. "If you can get away with it, you want to get rid of the supporting cells," she says. This simple device will also be useful for exploring a host of other cellular interactions. Most prominently, the device could be very useful in exploring embryonic development, duri...Researchers show that veins stiffen as we age
...ns in your body. The muscular arteries carry blood away from the heart and out to your organs and limbs. Microscopic capillaries connect the arteries to the veins. The veins then transport the blood back to the heart. The veins are equipped with valves to prevent any backflow of blood caused by gravity ...U of M researchers invent 'flashy' new process to turn soy oil, glucose into hydrogen
...tock molecules toward the production of syngas and away from water and carbon "gunk." Because the catalytic disk is porous, the syngas passes through it and is collected downstream in the tube. No external heat is needed, because the chemical reactions that produce syngas release enough heat to break up s...Gladstone investigators identify a new protective action for the powerful anti-HIV factor, APOBEC3G
...lement RNAs and sequestering them in the cytoplasm away from the nuclear machinery required for copying the RNA back into DNA and inserting the retro-element at a new chromosomal site. Understanding A3G's role in activated CD4 T cells could lead to a new strategy against HIV. "If we can find a way to...Nobel Laureate finds 'elegant' explanation for DNA transcribing enzyme's high fidelity
... loop swings from its usual position some distance away until it rests parallel to the NTP. It then forms a network of interactions—some 20 to 30 in all—with components of the NTP, a process that serves to “recognize all features of the NTP in the addition site and detect its precise location,?the researc...MRSA toxin acquitted: Study clears suspected key to severe bacterial illness
...tor." Next, Dr. DeLeo says his group will shift away from PVL and try to determine exactly which toxin or other mechanism in S. aureus kills white blood cells and allows the spread of CA-MRSA infection. ...Two nerve cells in direct contact
... at the front increase in size and objects further away hardly change at all. At a higher level in the visual centre in the brain, there must be a computation of the visual information, so that animals can differentiate between their own movement and movement of their environment and are able to correct t......ent species of Caenorhabditis are evolving rapidly away from one another," says Dernburg. "The zinc-finger proteins bind to different sites in the Pairing Centers on their chromosomes, which prevents pairing during meiosis, so even those who mate can't produce fertile offspring." The question remains ...Researchers link ocean organisms with increased cloud cover and potential climate change
...ence the formation of clouds that reflect sunlight away from our planet. Discovery of the new link betw...e significantly different from those that occurred away from the blooms," recalled Meskhidze, now an assistant professor in NC State's College of Physical a......with a diamond-impregnated bit and basically grind away at the tooth, collect the powder and then analyze that," Passey says. In the past decade, researchers including Cerling have used "laser ablation" to remove and analyze tooth enamel samples from the large, fossilized teeth of prehistoric horses, ...