A balancing act between the sexes
...e of the female X-chromosomes to match the protein contents between the sexes. But the fact that the machinery is evolutionary conserved suggests a common molecular basis from which the different mechanisms evolved." The next step will now be to find out how exactly the membrane proteins influence the gene ac...Plant cells 'black out' when eaten by leafworms
...nsions and controls differences between the cell's contents and its environment. The membrane thus determines how nutrients enter the cell. This creates varying ion concentrations between its interior and exterior and generates membrane potential. Experiments in the current study have shown that in the case o...UW scientists unravel critical genetic puzzle for flu virus replication
...flu viruses, how the microbe organizes its genetic contents to seed future generations of viruses has remained an enduring mystery of biology. Now, with the help of a long-studied flu virus, an electron microscope and a novel idea of how the virus aligns segments of RNA as it prepares to make virions, the par...Stanford/Packard scientist's data-mining technique strikes genetic gold
...other systems," said Butte, who estimates that the contents of the databases are more than doubling each year....her a body of water or the action of combining the contents of two or more tubes. "As a community, we've standardized the way the data itself is represented," s...Elsevier partners with ASENT to publish NeuroRx
... and subscribers will be able to access the entire contents of each issue online at the journal website, www.neurorx.org. Other online features will include a comprehensive search engine, allowing users to search NeuroRx alone, or to include hundreds of other Elsevier journals and MEDLINE in a single query; ...War on terror meets war on cancer
...n-16. After the bacteria grew for three hours, the contents of each flask were sucked through a filter, leaving a pasty "cake" of bacterial cells with the consistency of wet flour. Water was extracted from the bacterial cakes by placing each cake in a test tube, freezing the cakes by putting the tubes in liqu...Amazing nanotech in Boston: Weighing DNA, digital heat flow, electromechanical butterfly images
...y aim to use their sensitive device to catalog the contents of strands of DNA with lengths of about 1500 base pairs. In addition to this work, Craighead will describe other activities in his research group, which is perhaps best known among the general public for designing a tiny guitar, around the size of a...Russian 'surrogate' alcohols are a killer
...or consumption. Researchers have now analyzed the contents of these surrogate alcohol products, finding either high alcohol content or toxic contaminants. Results are published in the October issue of Alcoholism: Clinical & Experimental Research . "During the past decade we have been investigating reasons...MERIS/AATSR Workshop looks at twin sensors with many uses
...with a dual view design to better characterise the contents of the atmosphere. Their complementary nature mean...our used to derive marine phytoplankton and water contents - while AATSR's main task is to maintain a long-term record of sea surface temperature (SST) commenc...Sugar helps control cell division
...material of these cells was bunched up, giving the contents of the nucleus a "wrinkly" appearance. Exactly what is going wrong is still unclear, adds Gerald Hart, Ph.D., professor and director of biological chemistry. He's been studying O-GlcNAc since his lab discovered it attached to proteins inside cells 20...New chemistry method uses 'test tubes' far smaller than the width of a hair
...n employs a powerful laser microscope to study the contents and examine chemical processes, and a laser beam is used to manipulate the cell or even just a few molecules, combining them with other molecules to form new substances. This nanoscale "laboratory" is so minuscule that it covers just 1 percent of th...Ships bring alien jellyfish invaders to our shores
...ean exchange/flushing this 'foreign' water and its contents can find their way into bays and harbours at the destination. The computer model used to track jellyfish movements could answer similar questions about the migration and introduction of any suspected non-native marine creatures, according to its deve...Scripps scientists identify target of an immune suppression molecule called CD22itself
...y impossible to separate CD22 from the rest of the contents of the cell without also stripping away whatever CD22 is bound to. Careful experiments in which CD22 was attached to an antibody and allowed to bind to different cellular glycoproteins in vitro yielded inconclusive results--the experiments identified...Several minute intermediate stage in virus-cell fusion discovered; opportunity for drug development
...membrane and the microbe's delivery of its genetic contents into the cell, when the fate of the host cell still hangs in the balance. This intermediate stage, which can last several minutes, may represent a window of opportunity for drug development. The remarkable findings, captured on video, were published...World Ocean Day: How satellites safeguard our waters
...ng Spectrometer (MERIS) can reveal a lot about the contents of seawater: the ocean tint seen from space can be run through specialised algorithms to pinpoint its suspended contents, including marine phytoplankton, sediment loading and pollution. Identifying oil spills For detecting oil pollution, radar sen...Infection-fighting strategy backfires in cystic fibrosis
...omonas, Dr. Nick and his colleagues found that the contents of dead neutrophils, particularly DNA and a filame...ls. "As the neutrophils die and fall apart, their contents provide an excellent substrate for the development of biofilms," said Nick. "In turn these biofilms ...Rice, Iowa state biologists search for 'half-fusion'
...ve it, they fuse with the membrane and eject their contents into the surrounding tissue, causing an immediate chain reaction that keeps our hearts beating and allows us to move our muscles. Membrane fusion is also used to initiate disease. "Some invading organisms like enveloped viruses use the fusion proces...Cigarette smoke exacerbates alcohol's effects on defense against Streptococcus pneumoniae
...sed risk of movement of nasopharyngeal and gastric contents into their lungs, especially when they lose consciousness," she said. "Both of these defects provide additional opportunities for S. pneumoniae to enter their lungs. Host defenses within the lungs of alcoholics are also compromised, so they are n...Mechanism for the captation of nutrients in plants- unknown to date
...ated into micro-vesicles that end up pouring their contents into an internal compartment of a vegetable cell known as the vacuola. Once inside the vacuola, the substances or nutrients are broken up, stored and metabolised. Two processes of captation This discovery breaks with a fundamental dogma in basic p......GLOBCOVER map an amount of data equivalent to the contents of 20 million books. The image acquisition strategy is based around regional climate patterns to minimise cloud or snow cover. Multiple acquisitions are planned for some regions to account for seasonal variations in land cover. Other Envisat sensors...