Component of volcanic gas may have played a significant role in the origins of life on Earth
...ern Australia. These most likely evolved from some simpler life forms because, like all modern life, cyanobacteria are highly sophisticated living organisms--with cell walls, complex metabolism, and DNA genes. The question of the origins of life is: what came before the stromatolites? Research on the ori...For inferring the biological tree of life, simple is better
...e from DNA sequences is prone to error. However, a simpler method, largely abandoned in recent years, turns o...thod performs well when reality is simple, but the simpler method is much more accurate when reality is complex," Thornton said. During the past decade, maximu...New tool highlights activity of key cellular signal
...lt to use because PKA is made of four parts. For a simpler and easier to use probe, Lisa DiPilato, now a second-year graduate student in pharmacology, added fluorescent caps -- one cyan, the other yellow -- to a one-piece protein called Epac that is also activated by cyclic AMP. By using a special micr...Dinosaurs in bullet-proof vests
... kind of armour, the individual plates have a much simpler structure. By using a polarisation microscope Torsten Scheyer discovered that collagen fibres were interwoven in the bone calcium of the dinosaur's armour plating, forming mats which were interspersed with each other three-dimensionally. Within each ...NJIT professor discovers new mixing method for microchip-sized labs
...t NJIT. "We traded space for time, which is a much simpler way to handle this problem when space is at a premium." A paper by Aubry and her team, "Electro osmotic Mixing in Microchannels," published in the Nov. 29, 2004 issue of Lab on a Chip, showed that mixing could be accomplished by changing the flow r...Scientists find that the human nose is more complicated than a jumbo jet
...roplane being complicated but that is in some ways simpler than understanding the flows inside the nose. The geometry of the nose is highly complex, with no straight lines or simple curves like an aircraft wing and the regime of airflow is not simply laminar or turbulent." The research has mapped the flow of...New lensless imaging technique opens door to nanoscale world
...ther advantage to the technique is it entails much simpler alignment and sample handling than do established X-ray microscopy methods. Lensless imaging will be especially powerful at LCLS and other future X-ray free electron lasers being planned in Germany and other countries. X-ray free electron lasers will...The simple truth: Animal development not as complicated as it seems
...n other words, the development of these animals is simpler than it looks. "It's particularly noteworthy that all four organisms showed the same pattern," Azevedo said. "The sea squirt, a chordate, has a general body plan similar albeit simplified to that of humans, while the nematode worms are more dist...Steroid discoveries could add bulk to crop harvests
..., they are prohibitively expensive. If we can find simpler ways of manipulating these biosynthetic response pathways in plants, it could have a very significant impact on crop yields, as well plant response to stress and to senescence programs," said Chory....Wider use of simpler cervical cancer screening could benefit women in developing countries
...return to know the results." It's much quicker and simpler with the vinegar or VIA test. According to the article, VIA-positive women knew their abnormal result immediately during the first visit, and they immediately received special counseling about that finding and the importance of returning in a week fo...Surprisingly complex behaviors appear to be 'hard-wired' in the primate brain
...archers' lead and try long-duration stimuli in the simpler brain of the Galago. When they did, they also found that this type of stimuli triggered complex behaviors. In fact, they were able to stimulate a larger number of complex movements than the Princeton group had reported, including aggressive facial pa...Scientists propose new method for studying ion channel kinetics
...allow molecular biologists to come up with better, simpler models for what is happening in ion channels, even when the complete picture remains hidden." John Pearson added, "Ions such as calcium, sodium and potassium play a fundamental role in nearly all biological processes. Calcium, for example, is import...Genes influence how heart failure patients respond to drugs
...re probably going to do fine might be managed in a simpler way." UF researchers say the findings justify the need for a larger study to better define the role of genetics in how beta-blockers are tolerated. Scientists also will need to scrutinize additional genes to determine their role, if any, in the proce...Gene 'archeology' gets easier using Carnegie Mellon University software
... possible explanations for how a gene evolved, and simpler is usually better," Durand said. Durand is collaborating with a team at the University of Puerto Rico in searching for MDR genes that confer drug resistance in malarial parasites. The same genes confer pesticide resistance in plants. Durand's team u...U-M scientists discover identifying markers for primitive blood-forming stem cells
...ut a hematopoietic stem cell and makes the process simpler and less labor intensive." "Many of the current markers we use to purify HSCs are expressed as a gradient from high to low across the hematopoietic cell hierarchy," says Omer H. Yilmaz, co-first author and a student in the Medical School's M.D./Ph.D....Identifying blood stem cells is a SLAM dunk
...ecific members of the SLAM family. This provided a simpler and more robust way to identify HSCs. The researchers demonstrated that the HSC SLAM markers appeared to be universal in mice by showing that they distinguished HSCs from different genetic strains of mice, which show variation in other HSC markers th...African grey parrot is first bird to comprehend numerical concept akin to zero
...er, it seems likely that these skills are based on simpler cognitive abilities they need for survival, such as recognition of more versus less," explained Dr. Pepperberg. Alex had previously used the label "none" to describe an absence of similarity or difference between two objects, but he had never been t...Scientists crack 40-year-old DNA puzzle and point to 'hot soup' at the origin of life
...of DNA - that the three-letter code evolved from a simpler two-letter code, although Crick thought the difference in number was simply an accident "frozen in time". The University of Bath researchers suggest that the primordial 'doublet' code was read in threes - but with only either the first two 'prefix' o...New DOE program funds $20 million for multiscale mathematics research
...c. The problems cannot be easily broken down into simpler problems for solution using traditional mathematical techniques. "Computer simulations on even the most powerful present-day computers cannot handle these scientific problems, so new mathematics is needed," said Dr. Raymond L. Orbach, Director of t......heir oil separator systems. "We were looking for a simpler way of doing things," says Tolmie. "One way is to make the tank bigger and that works but we realised we could use the existing API separators more productively. The beauty of our concept is that existing systems can be retrofitted with relative ...