Yerkes researchers find primate face recognition can be purely visual
...ecognition that is purely visual andindependent of previous experience with the individuals in question. Parr and deWaal demonstrate that chimpanzees, using a computerized joystick program, areable to accurately match portraits of unfamiliar females with their sons. Thechimpanzees, however, fail to recognize ...Common genes form new family tree for animals
...er said. The new, three-limbed tree simplifies the previous animal kingdom family tree bysubstituting one branch in place of many offshoots first suggested throughanatomical comparison. "Similar (anatomical) traits don't necessarily reflect a closer relationship,"Grenier explained. "We think there are fewer ...Agriculture linked to red-legged frog decline in California
...agricultural land of the Central Valley. Moreover, previous studies have shownthat the wind carries pesticides from the Central Valley up into the Sierra Nevada. Davidson cautions that while these findings are significant, they do not provethat agricultural chemicals are wiping out red-legged frogs. "It's a ...University of Pittsburgh team finds gene that increases risk of oteoporotic fractures
...s in the "Study of Ostoporotic Fractures"because a previous investigation showed that patients undergoing hemodialysiswho had the APOE-4 allele were more likely to suffer fractures. The APOE-4 allele may contribute to fractures because it reduces blood levels ofvitamin K, which has been shown to stimulate the...Scientists grow blood-producing stem cells outside the body
... to multiply untilafter one month in culture. Most previous studies were not continued so long. The 23-year-old Seattle Biomedical Research Institute is a nonprofitorganization that conducts research in molecular pathogenesis - the interactionsof disease at a subcellular level - with a goal of improvi...Lab on a chip? Cheap, disposable UD biosensor uses gold-on-plastic design
...ed their biosensor, Velev says, they firstexamined previous efforts to develop a "lab on a chip" for analyzing medical,industrial and environmental samples. Specifically, they evaluated existing immunosensors based on surface plasmonresonance/total internal reflection (SPR/TIRF), as well as devices usingpiezo...Threatened marbled murrelet first to be hatched in captivity
...val rate. We've been following some young birds in previous years andwe know they travel considerable distances. We see them feeding, so they've gotthe instinct to feed. They don't learn from their parents and they're not fed bytheir parents once they've fledged, so I think Theo has a good chance ofsurvival,"...Presence of a fertile female in the next nest can lead a bird astray, UB research finds
...sistant professor of biological sciences. Although previous studies have shown that otherwise monogamous bird speciesoften do have extra-pair young in their nests -- birds that are not fathered bythe companion mate of the mother -- this is the first time that biologists haveidentified a reason for the phenome...Researchers identify new type of potentially fatal tick-borne disease
... and both are foundin Missouri, it's possible that previous cases of E. ewingii have beenmisdiagnosed as E. chaffeensis. Regardless, Storch and colleagues believe it's important for the publicand physicians to be more aware of ehrlichiosis. He said some physicians stilldo not recognize the disease wh...KSU microbiologist uses microwave, acid treatments to kill pathogens, maintain color in meat
...e kill 90 to 99 percent of the microorganisms." In previous studies, Fung has used smaller portions of meat. The current study,funded by the National Cattleman's Beef Association, will examine the processusing larger portions of meat....Oxygen measurements yield greenhouse clues
...ds and colleagues have identified the problem with previous isotopeattempts and reconciled previously conflicting information. CSIRO's oxygen measurements have been made with technology available onlyrecently and provide an important constraint on identification of the factorsthat are influencing growth of ca......d to be absorbed percutaneously. Compared with the previous year there were 64changes and new entries. 16 carcinogenic substances were reviewed and/or classified. It should be notedthat this year crystalline silicon dioxide, i.e. quartz, cristobalite andtridymite, were classified as category 1 carcinogenic su......ied independently as a new category of life, and a previous Bergey Awardrecipient. Dr. Stahl elected to receive his award at the ASM Conference on MicrobialBiodiversity, which will bring together scientists from disparate backgrounds toaddress issues of microbial diversity, an emerging hot topic in life scien......t generation: displacement and incapacitation of a previous male'ssperm. In most insect species, the second male to copulate with a female siresmost of her offspring. Scientists have long puzzled over this strangephenomenon, also seen in birds and some arachnids. Female fruit flies mate with...High HIV RNA levels major risk factor for mother-to-child HIV transmission
...ciated with maternal HIV viral load. Thissupports previous studies that found that AZT therapy during pregnancy reducesthe risk of perinatal transmission, but not solely as a result of reduction inmaternal HIV levels. The same may not be true for combinations of potentantiretroviral drugs that are capable o...Hepatitis C is not a 'silent disease'
...re severe patients who experienced a relapse after previous treatment. The immediate quality oflife improvements following successful treatment for these patients should be considered, along withthe long-term liver complications, in deciding when to begin treatment with a new combination therapy. AASLD is th...Single switch triggers two immune system genes
...little about theircontrol elements." He added that previous experiments testing small segments ofDNA were inconclusive in defining the RAG1/RAG2 control mechanism. In the current work, however, Nussenzweig and his colleagues used speciallymodified bacterial artificial chromosomes (BACs) to carry large pie...Genetic variation in sensitivity to estrogen may mask endocrine disruption
...dlifefailed to disrupt reproductive development in previous laboratory animalstudies," Spearow added. "The laboratory-animal endocrine-disruptionstudies to date seem to have used estrogen-resistant lines of mice and ratsfor product-safety testing." He suggested that this demonstration of major genetic......arker DNA in cardiovascular cells by 60 times over previous attempts withnonviral vectors. Using a novel design, the researchers combined a short genetictag from a nuclear protein with the standard marker gene, which provided themolecular key to the nucleus. They report their findings in the September issueof...