Researchers devise potent new tools to curb ivory poaching
...ofiles for elephant populations from which they do not have genetic samples. The model is weighted toward genetic information obtained from populations nearest those for which information is unavailable. The method allows a DNA sample to be assigned to a fairly specific location, with a relatively high ...Punching the timeclock of life
...k at aging in humans and mammals. "We're not saying Darwin was wrong. We're just saying that th...n his theory," Longo said. "We're also not saying that humans are, for sure, undergoing programmed aging. But, most likely, most organisms unde...Indiana University, EPA to study airborne PCBs
...onsumption advisories in 2003 may be the result of not only the toxin's persistence underground but also ...es in or near the Great Lakes Basin. Advisories do not necessarily prohibit fish consumption, but they usually caution consumers to severely limit their co...Tracing genes, biologists show lizard migration is traced to Florida
...ntroduced samples in comparison to the Cuban ones, not only in Florida but also in Hawaii, Taiwan, Jamaic... brown lizard out-competes it," Kolbe said. "It's not really causing any problems for people, except for those who are partial to the green lizards and mi...Marijuana use could cause tubal pregnancies
...action to move the embryo down the oviduct. It is not known whether drugs that block or, in the case of marijuana, over-stimulate the CB1 receptor can cause ectopic pregnancy in humans. However, "our results raise caution for women of reproductive ages regarding the chronic use of marijuana for recreati...Knock knock knocking on rhythm's neural doors
...oth sides of the brain, including "planning areas" not directly connected with motor execution. The diffe...em," the authors wrote. However, the opposite is not the case: the authors find that "discrete movement could indeed be generated with the help of the rh...Fortifying food with folic acid benefits babies
...lements rose significantly from 17% to 28%. It was not possible in this study to determine the separate contributions of food fortification and supplement use to the decline in neural tube defects. Therefore, the authors stress that, "public education regarding folic acid supplement use by women of child...Rice finds 'on-off switch' for buckyball toxicity
...ody processes come into play. "Cytotoxicity should not be confused with a full-fledged toxicological risk assessment," said Kevin Ausman, CBEN executive director and a co-author of the paper. "Risk assessments take into account exposure rates, uptake mechanisms, transport within the body and much more. M...Researchers create nanotubes that change colors, form 'nanocarpet' and kill bacteria
...esearchers have synthesized a simple molecule that not only produces perfectly uniform, self-assembled nanotubes but creates what they report as the first "nanocarpet," whereby these nanotubes organize themselves into an expanse of upright clusters that when magnified a million times resemble the fibers ......s extremely rare since dinosaurs of this genus are not typically found in this southern region (similar specimens have been located in Montana and Canada). The find may also represent a new species or hold clues to migration patterns of these animals. Once airlifted and transported by truck to the Uta...Bronfenbrenner book sums up human development
...onal information on this news release. Some might not be part of the Cornell University community, and Cornell has no control over their content or availability. oUrie Bronfenbrenner http://www.human.cornell.edu/faculty/facultybio.cfm?netid=ub11&facs=1...UMaine anthropologist wins Solon T. Kimball Award
...der what conditions groups of people will and will not develop rules to conserve the resources on which their livelihood depends," Acheson says. "This has led me into a far more theoretical realm namely trying to understand the circumstances under which people develop rules in general." Acheson has stud...Pollutant causes delayed flowering in plants
...duced internal nitric oxide production. But it was not expected that external nitric oxide affected the flowering pathway." To explore how the molecular machinery of the plant was affected by nitric oxide, the researchers identified mutant plants that produced high levels of nitric oxide and were hyperse...No role for simian virus 40 in human pleural mesotheliomas
...e lymphomas, brain cancers, and bone cancers) have not consistently yielded the same results when repeate...he SV40 DNA fragments detected in some assays were not derived from genuine SV40 in the tissue samples but from SV40 DNA fragments engineered into common l...Researchers ID chlorophyll-regulating gene
... bind with typical levels of protochlorophyll. But not enough of the enzyme is produced to handle the overabundance of unbound protochlorophyll churned out by the mutant seedlings. The researchers say the ability of plants to precisely regulate production of protochlorophyll was probably an evol...'Gene chips' research in cotton could lead to superior variety
...to how science and technology programming involves not only agriculture, but biotechnology and engineering as well." ...Females may be more susceptible to overindulge 'sweet tooth' cravings than males
...et foods were available than when sweet foods were not available. The researchers concluded that female ...rats, diet-induced hyperphagia was attenuated, but not abolished, and caloric intake of the chow plus milk diet remained greater than that observed during ...Enzyme maintaining chromosome ends is linked to bone cancer recurrence, decreased survival
... 30 percent of children with osteosarcoma that has not spread from the bone and 60 percent of those whose tumors have spread do not survive. "Overall, our results indicate that telomerase gene expression is associated with an unfav...Anthrax enzyme images reveal secrets of antibiotic resistance, suggest new drug design
... enzyme made DHPS resistant to sulfa drugs, it did not disrupt the enzyme's ability to combine DHPP and p...HPS prevent the antibiotic from binding to it, but not enough to disrupt the enzyme's normal work," White said. "So the bacteria evade the antibiotic and c......y in water is slippery, and any movement toward it not only alerts the prey of an attack but also creates...ck a little more flexible. "These two species are not very closely related, which demonstrates that this strange, long neck evolved twice within the group...