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Molecular & Cell Biology

Music under the microscope: the relation between biology and genetics and human music, its peculiarities and reasons. These are the main themes of the International Workshop on the Biology and Genetics of Music, to be held in Bologna, May 20 to 22, with leading scientists currently involved in researching the mysteries of music, invited to explain their recent findings to the audience. The meeting is organized by the European Genetics Foundation and the Fondazione Pierfranco e Luisa Mariani, in collaboration with the Orchestra Mozart, the Municipality of Bologna and the University of Bologna. It is part of the agenda of the second edition of the Festival of Music and Genetics, taking place from May 12 to 22, 2007 (www.musicagenetica.it).

Biology

The brain appears to process information more chaotically than has long been assumed. This is demonstrated by a new study conducted by scientists at the University of Bonn. The passing on of information from neuron to neuron does not, they show, occur exclusively at the synapses, i.e. the junctions between the nerve cell extensions. Rather, it seems that the neurons release their chemical messengers along the entire length of these extensions and, in this way, excite the neighbouring cells. The findings of the study are of huge significance since they explode fundamental notions about the way our brain works. Moreover, they might contribute to the development of new medical drugs. The study is due to appear shortly in the prestigious academic journals "Nature Neuroscience" and has already been posted online (doi:10.1038/nn1850).

Health & Medicine

Even regular use of prenatal multivitamin supplements is not adequate to prevent vitamin D insufficiency, University of Pittsburgh researchers report in the current issue of the Journal of Nutrition, the publication of the American Society for Nutrition. A condition linked to rickets and other musculoskeletal and health complications, vitamin D insufficiency was found to be widespread among women during pregnancy, particularly in the northern latitudes.

Molecular & Cell Biology

If you're particularly good with puzzles or chess, the reason may be in your genes.

Environment

A stunning series of satellite imagery of Australia's Great Barrier Reef released by the CSIRO shows for the first time visual confirmation of the theory that sediment plumes travel to the outer reef, and beyond.

Biology

Ecologists continue to debate how different species manage to coexist. If two species use identical resources, such as food, invariably one will be more efficient and out-compete the other. The classical explanation is that each species has evolved morphological or physiological traits that allow it to exploit some resources more efficiently than all other species. Such partitioning of resources essentially provides each species with exclusive access to resources necessary for its survival. Although coexistence is often attributed to interspecific differences in morphology, direct evidence is relatively rare. Dabbling ducks, which include the ubiquitous mallard, are a good example. Dabbling ducks are primarily filter-feeders. They use lamellae, which are comb-like projections on the bill, to sieve food particles from pond water. Many ecologists, including Darwin, suggested that ducks coexist because interspecific differences in the spacing of bill lamellae allow each species to consume food particles of different sizes. Research published in the March issue of the American Naturalist by Brent Gurd of Simon Fraser University has demonstrated that interspecific differences in lamellar length, not spacing, allow ducks to partition food by size.

Biology


The roundscale spearfish bears a close resemblance to the white
marlin at first glance. A close examination of fins, scales, and DNA
reveals a very different species.
For years, anglers thinking they were catching the prized white marlin may have caught something quite different, raising concerns about the true remaining numbers of the threatened species, according to an article in the most recent issue of the scientific journal Bulletin of Marine Science.

Health & Medicine

Systemic lupus erythomatosus (SLE), often simply called lupus, is a complex autoimmune disease marked by joint pain, skin rashes, extreme fatigue, and depression, among other symptoms. Some studies have described a possible link between SLE’s most severe psychiatric manifestation, psychosis, and a protein autoantibody associated with the central nervous system, anti-ribosomal P.

Health & Medicine

A study of eight hospitals in Peru has shown that opening windows and doors provided ventilation more than double that of mechanically ventilated negative-pressure rooms and 18 times that of rooms with windows and doors closed.

Health & Medicine

Seafood allergy sufferers may soon be able to eat prawns without the fear of an adverse reaction. Chinese scientists have taken a promising step towards removing from prawns the proteins that cause an allergic response without resorting to genetic manipulation, reports Lisa Richards in Chemistry & Industry, the magazine of the SCI.

Health & Medicine

A breath test can successfully pick up lung cancer with "moderate accuracy" even in the early stages, reveals research published ahead of print in Thorax.