On the cutting edge: Carbon nanotube cutlery
... steel wire that cuts a block of cheese. To begin demonstrating the feasibility of their knife design, the researchers assessed its mechanical strength in force tests, applying increasing pressure to the device. The team found that the welds were the weakest point of the nanoknife, and they are now experimenting ...Yale Cell Biologist Joel Rosenbaum, to receive Prestigious Wilson Award
...or the importance of cilia in the PKD pathology by demonstrating that the polycystins, gene products of the PKD genes, were located on these cilia. Because cilia were related directly to the disease, this became known as the ciliary hypothesis of PKD. Researchers at the NIH and Yale Medical School have now shown...Detecting explosives with honeybees
... bees are such good detectors, going beyond merely demonstrating that bees can be used to identify the presence of explosives. By looking at such attributes as protein expression, the team sought to isolate genetic and physiological differences between those bees with good olfaction and those without. They also ......thermore, these bacteria are distributed globally, demonstrating that Typhi has spread inter-continentally on multiple occasions. The authors propose that the unusual population structure of Typhi reflects long-term carriage by asymptomatic carriers, who reached public notoriety at the beginning of the 20th centu...Biolex reports potential for more potent, efficacious antibodies in Nature Biotechnology
...nnounced results published in Nature Biotechnology demonstrating the ability of its proprietary LEX SystemSM to produce monoclonal antibodies that have enhanced in vitro potency and efficacy. The research was conducted by scientists from Biolex and Medarex as part of an ongoing collaboration between the two compa...Special ES&T issue examines effects of emerging contaminants on people, planet
...llular damage. This new study goes a step further, demonstrating "a strong correlation between the presence of nC60 and DNA damage" to human lymphocytes, the researchers conclude. The study is the first to assess the genotoxicity of nC60 mixed into water. Water is a likely pathway for future human exposure to buc......es found in tropical forests, researchers are also demonstrating to farmers the income-generating potential of tree products such as fruits, nuts, oils, resins, medicines, cosmetics, fibers, fodder, and dyes. Contact: Louis Verchot, World Agroforestry Centre Tel.: +254 20 722 4000 (GMT+3 hours) Managing greenh...How mammals fuel milk production may have implications for cancer
...or prognosis, the researchers said. Our findings demonstrating a physiological requirement for Akt1 in the control of glucose and lipid metabolism further implicate Akt1 activation as a potential mediator of the Warburg effect and reinforce the importance of efforts to design pharmacologic agents that will inhib...American scientist's research of life's first cells
... others did not. Some were favored competitively, demonstrating greater evolutionary fitness." Chen describes how she has used simple "protocells" to study how life's earliest cells emerged. The protocells consist of a cell's two fundamentals: a self-replicating genome (in this case made of RNA) contained in a ve...Pittsburgh-based team engineers muscle, bone cell differentiation with aid of ink-jet printer
...i. "This experiment represents a key first step in demonstrating the potential of this technology to learn more about not only the basic biology of how multiple cell types are patterned in the body during development, repair and regeneration, but also for translating adult stem cells into real therapies for patien...NASA ice images aid study of Pacific walrus arctic habitats
...cerns and perform advanced, analytical experiments demonstrating their contribution to national policy and decision-making. Researchers say there are big advantages to knowing where to find the walrus. When conducting surveys, researchers know where to go to make the count and fewer resources are used, which mak...Pesticides need sunscreen to beat the heat
...r-soluble validamycin, and a couple of others, all demonstrating the same behaviors," Wen said....Watching with intent to repeat ignites key learning area of brain
... "Teaching a physical skill often involves someone demonstrating the essential action components after which the learner tries to reproduce what has been observed. This is true for behaviors ranging from learning to eat with utensils, playing an instrument or performing surgery. We wanted to know how the brain tak......n the singing, matching the correct predator song, demonstrating that they understood the difference between calls." The researchers also observed the singing behaviour of gibbons spending time away from their home group. They noted that during predator songs within the group setting, the absent individual respo...How fish species suffer as a result of warmer waters
...applies also to fish populations. Previous studies demonstrating a link between global warming and declining fish stocks were based entirely on statistical data. However, in order to estimate future changes, it is essential to develop a deeper understanding of the effect of water temperature on the biology of orga...Proposed FDA claim recognizes role of key nutrients in dairy in reducing osteoporosis risk
...ds and osteoporosis. "A proposed new health claim demonstrating the connection between calcium and vitamin D and the role it plays in reducing the risk of osteoporosis will draw attention to milk as one of the richest dietary sources of calcium and vitamin D, critical for building strong bones in kids and teens, ...U of MN adult stem cell research shows promise for transplant therapies
... blood when transplanted, this is a second example demonstrating that MAPCs can contribute to a tissue when grafted in vivo."This work provides the first evidence that human MAPCs can be induced to differentiate into the different types of cells needed to form arteries," Prosper said. "This may suggest future cli...Heart rhythm genes possible factors in SIDS
...have similar evidence, to be published separately, demonstrating that mutations in heart potassium channels are also contributing factors in SIDS. The findings also suggest that there may be strategies to identify whether infants are a carrier of one of these mutations before the tragic event of their death, Geo...Families do not cause anorexia nervosa
... Disorders Association. "These scientific advances demonstrating a genetic component are significant and so meaningful to our families, wiping away the myths and emphasizing the need for even more research to help the next generation."......t, the researchers say. "This is the first paper demonstrating that a region of the cortex is involved in learned fear but not in innate fear," says Markus Fendt, PhD, of the Novartis Institutes for Biomedical Research in Basel, Switzerland, who is not connected with the study. In their study, Corcoran and Quir...