Delay in cutting the cord helps premature babies
...uire transfusions of blood or fluids, which can be tricky to accomplish safely in a preterm baby. On the other hand, delaying clamping too long can actually pack too many red blood cells into the baby's system. That can make the blood too thick, stressing the heart and respiration, and possibly triggering ...The logic of life brings order to our genes
It is tricky enough to get a soccer team of eleven players to cooperate and work as one but what would it be like if there were 25,000 players on the field? What would the rules be like, and how many referees would it take to make sure that the rules were follo...Cure for common cold will need to wiggle to work, scientists say
...p the protein effectively, which turns out to be a tricky business." That spot is located in the cigar-shaped cavity within the protein, a cavity accessible only by a tiny hole that on first inspection looks too narrow even for the stringy WIN molecule to squeeze through. And it would be too narrow, Post sa...'Achilles' heel' of the herpes virus possibly found
... its role and studying the HSV entry mechanism was tricky and near impossible until Fuller's team discovered a type of pig kidney cell that isn't vulnerable to infection by human herpes virus. They searched the genome library to find genes essential to HSV infection, isolated the B5-coding sequence, and fig......eurons' firing patterns are complex, and it's been tricky to tease out "which component of the neuronal activity was more likely associated with behavioral performance," he explained. Theoretically, there are many ways in which neurons could relay information about stimulus frequency, Romo said. Frequency ...Newer football helmet design may reduce incidence of concussions in high school players
... play until he or she is completely recovered. The tricky part is that concussion signs and symptoms are not always straightforward, therefore the effects and severity of injury and safe return-to-play can be difficult to determine without careful clinical evaluation of symptoms and objective data about cog......substance, albeit only with great difficulty. 'The tricky bit is transferring the caffeoyl groups to the quinic acid,' Ralf Theisen says. 'The plants probably only have one enzyme, which acts as a catalyst for this transfer. If we can find the construction manual for this enzyme, i.e. the corresponding gene...The closest look ever at the cell's machines
...Investigating protein complexes has always posed a tricky problem they're too small to be studied by microscopes, and generally too large to be studied by techniques like X-ray crystallography," says Russell. "But they play such a crucial role in the cell that we need to fill in this gap. There's still a h...Astronomer announces shortlist of stellar candidates for habitable worlds
...able zones around nearby stars. Either approach is tricky and relies on choosing the right targets for scrutiny out of the many thousands of nearby stars in our galactic neighborhood. Margaret Turnbull, an astronomer at the Carnegie Institution of Washington, has devoted herself to the painstaking search f...Troubling times for embryo gene tests
...error rate in any diagnostics, and it's especially tricky in this instance," he says, because genetic testing relies upon identifying a very short DNA sequence among the large volume of DNA that comprises the human genome. Human error may also play a part. In the Flynns' case, a genetic test on Julia's bone...Uncovering sex-change secrets of black sea bass
... make breeding and growing the fish in captivity a tricky proposition. "Black sea bass is a wonderful fish to culture and to eat," says George Nardi, vice president and director of GreatBay Aquaculture, a commercial fish farm in Newington, NH. But the sex change problem must be tackled if fish farmers are ...Fruitfly study shows how evolution wings it
...siological traits. For example, eye color is not a tricky thing to figure out, since it can be reduced to single genetic changes. But evolutionary biologists want to understand how even complicated bits of anatomy and machinery like the wing or the complex eye are put together in the course of evolution."......ime for a hyena to mate and give birth. Mating is tricky to say the least. A male must position himself at just the right angle to enter the females clitoris. If the match is successful, a mother hyena will give birth to each of her 2-pound cubs through the elongated clitoris, which doubles its diameter fr...Nice guys do finish first in lizards' evolutionary race, says MSU professor
... surface to be counterproductive. Cooperation is a tricky thing in terms of evolutionary theory, said Andrew McAdam, an assistant professor of fisheries and wildlife and zoology at Michigan State University and one of the papers authors. The question then is why do some organisms cooperate when it seems lik...K-Staters design and build a low-cost remote sensing tool for environmental studies
...many possibilities for collecting reliable data in tricky or dangerous settings, such as studying dispersal of a smoke plume during a prairie fire; checking smokestack emissions; counting livestock in the pens at a feedlot; or checking crop fields for problem areas, for example. "We keep thinking of new civ...Designer gradients speed surface science experiments
...of complicated surface properties, but they can be tricky to build. The new NIST technique described in a recent paper in Advanced Materials* coats a silicon wafer with a brush-like copolymer surface, varying the relative concentration of two components, or monomers, of the polymer along the length of the s...Genetic surprise confirms neglected 70-year-old evolutionary hypothesis
...ogist H. Allen Orr. Crossbreeding the flies proved tricky because a few million years of evolution separated the species, but after a few nudges the flies produced what Masly was looking for--a sterile male. This is when Dobzhansky's 70-year-old hypothesis nearly died for good. The reigning theory of specia...UGA study identifies North American wild bird species that could transmit bird flu
...s. "Doing avian influenza surveillance is pretty tricky because there are a lot of species differences and there are also seasonal differences," he said. "So you've got to pick the right species at the right time and you've got to collect the right samples." In a related study scheduled to be published ...Insights into honey bee sex gene could bring sweet success in breeding
... of economically important crops---and notoriously tricky to breed. The findings of Zhang and collaborators appear in a special issue of Genome Research devoted to the biology of the honey bee. The issue will be published online and in print Oct. 26, coinciding with the publication of the honey bee genome ......or indices must be obtained to monitor trends is a tricky one. Ship surveys are expensive and they cannot be expected to detect population declines or increases on an acceptable timescale for such a critically endangered species. According to one analysis, a single survey in 2006 or 2007 would have a probab...