Study shows dramatic increase in Caesarean sections
...ed by increases in clinical reasons for caesareans such as complications in pregnancy or labour/delivery a...hnology, women's requests and women's role models, such as celebrity elective caesarean delivery," Dr Pennell said. "The degree to which maternal request...A new portable biosensor detects traces of contaminants in food more quickly and cheaply
...to treat bacterial infections in domestic animals, such as the case of sulphanilamides in cattle, and even...ector of the study, "due to their characteristics, such as their ability to carry out measurements in the field, the biosensors are analytical tools which h...Rare soft-shell turtle, nesting ground found in Cambodia
...hophallus Sp., along with surviving populations of such threatened species as terns, fish eagles, green peafowl, otters and silvered leaf-monkeys. More than 180 fish species were recorded, including a new record for Cambodia? Bezuijen described the area where the turtle was discovered as “a near pristin...Newly identified mechanism for silencing genes points to possible anti-cancer strategies
...ot only supported our hypothesis, but to see it in such different organisms also suggested that the mechanism involved has long been conserved in evolution." ...Fused nasal bones helped tyrannosaurids dismember prey
...kulls, the scientists used CT scans to investigate such factors as teeth bending strength and nasal and cr...s. This extensive fusion increased the strength of such dinosaurs as the T. rex and helped them apply powerful bites that could splinter bone. With other ca...Intelligent materials to regenerate bone tissue
...ssue that can put the bone right and regenerate in such a way that it carries out similar functions as in ...oreover, of remedying particularly serious damage, such as those due to congenital deficiencies, degenerative illnesses, cancerous disorders and other damag......e concentration of ethanol rises in fleshy fruits, such as figs and dates, as they ripen. Egyptian fruit bats prefer these fruits when they are ripe, however high concentrations of ethanol (around 1%) are toxic to the animals. Intoxicated bats may also be less able to respond to attacks from predators, an...Sleep quantity affects morning testosterone levels in older men
...sociate lack of sleep with serious health problems such as an increased risk of depression, obesity, cardiovascular disease and diabetes. Experts recommend that adults get between seven and eight hours of sleep each night to maintain good health and optimum performance. Those who think they might ha...Revealing the machinery underlying the 'plastic' juvenile brain
...making proteins. As a test to determine whether such histone modification functionally affected plastic... chemical modification of histone. They found that such adult mice, indeed, showed an increase in a form of visual plasticity. "Our results show that vis...Detecting poisons in nectar is an odour-ous task for honeybees
...east 1/3 of the world’s crop plants, may encounter such poisoned nectar in common crop and garden plants such as Rhododendrons and almond trees. Can honeybees learn whether nectar contains toxins, and does this...Biodegradable microspheres deliver time release vaccines, stimulate different immune response
...ntry into the cell. In the case of some diseases, such as malaria or tuberculosis, antibody vaccines just...equire booster innoculations to be most effective, such as tetanus, whooping cough and chicken pox. "The slow release mechanism of the polymers means tha...Fat overrides effects of vitamin C
... may reduce the protective effects of antioxidants such as vitamin C. Scientists at the University of Glas...the presence of lipid the ability of antioxidants, such as ascorbic acid (the active component of vitamin C), to protect against the generation of potential...Discovery of 'master switch' for the communication process between chloroplast and nuclei of plants
...ts communicate with a cell’s nucleus when stresses such as drought, heat, salinity or light become too great on the organism. A research team that includes Shai Koussevitzky, a research associate in the University of Nevada, Reno’s College of Agriculture, Biotechnology and Natural Resources, as well as ...Proteasome activator enhances survival of Huntington's disease neuronal model cells
...cellular organelle with a central role of clearing such protein build up in the cell is the ubiquitin proteasome system (UPS). In Huntington's disease (HD) brains and other tissues, UPS activity is inhibited and intraneuronal nuclear protein aggregates of mutant huntingtin in HD brains indicate dysfuncti...In Iran, cheetahs collared for the first time
...that this international collaboration is producing such important outcomes." ...Man's best friend lends insight into human evolution
...s when cooperating, domestic dogs do quite well at such tasks. If you point to hidden food, dogs often grasp what you are trying to tell them. Puppies even do it without prior training, indicating that it is an innate ability, not simply one they acquire through contact with their owners. What account...Deconstructing brain wiring, one neuron at a time
...rain and then correlate these neural circuits with such brain functions as perception and behavior. But these circuits are difficult to unravel because dozens of different neuronal types are entangled within a precisely connected network, and even neighboring neurons of the same type differ in connectivit...MIT's ocean model captures diversity of underwater forests
...es of natural selection. Scientists use models such as this one to better understand the oceans' biological and chemical cycles and their role in regulating atmospheric carbon dioxide, an important greenhouse gas. The output of the new model, the brainchild of oceanographer Mick Follows, has been ...Researchers wake up viruses inside tumors to image and then destroy cancers
...rus (EBV), but not everyone with these cancers has such infections. For those who do, researchers, such as Hopkins oncologist and co-author Richard F. Ambinder, M.D., Ph.D., have been working on ways to a...Fish extinctions alter critical nutrients in water, study shows
Ecosystems are such intricate webs of connections that few studies hav...example, rely on fish to cycle back into the water such nutrients as nitrogen and phosphorus, which are otherwise locked up in animal or plant cells. Fish e...