Up To 10% Of Children Start School Suffering From Sleep Disturbances:
Up to 10% of children starting school suffer from sleep disturbances and these may lead to poor performance or behavioral difficulties. In the current edition of Deutsches Ãrzteblatt International, the child and adolescent psychiatrist Gerd Lehmkuhl and his colleagues present the results of a study from Cologne, Germany.
Rolling 'Sea Grape' Rocks The Fossil Record:
A submarine expedition that went looking for visually flashy sea creatures instead found a drab, mud-covered blob that may turn out to be truly spectacular indeed. The grape-like animal, tentatively named the Bahamian Gromia, is actually a single-celled organism, fully one inch long. But what makes it really fantastic is that it moves -- very slowly -- by rolling itself along the ocean floor.
New Insight On Wonder Of Cell Division:
Biologists have discovered a mechanism that is critical to cytokinesis -- nature's completion of mitosis, where a cell divides into two identical daughter cells.
Crystallography Reveals The 3D Structure Of Mammalian Sperm Receptor:
Scientists at the Swedish medical university Karolinska Institutet have determined the first 3D structure of ZP3, a protein essential for the interaction between the mammalian egg coat and sperm. The findings, presented in Nature, gives a first glimpse into the molecular architecture of animal egg coats, with important implications for the future of human reproductive medicine and the possibility of developing novel contraceptives.
Fertility Patients Concerned About Embryo Disposition, But Resist Giving Embryos To Anyone Else:
Fertility patients who are done having children feel responsible for the stored, frozen embryos left over from their treatment, yet more than half are against implanting the embryos in anyone else, according to a new study by researchers at Duke University Medical Center.
Myth About 'Dirty Old Men' Supported By Science:
Middle-aged men want younger women, often touting their intelligence and their high income. This is shown in research at Gothenburg University and Oxford University that studied 400 lonely hearts ads to see how men and women choose partners.
Fruit Fly Research May Lead To Better Understanding Of Human Heart Disease:
Researchers at the Burnham Institute for Medical Research (Burnham) have shown in both fruit flies and humans that genes involved in embryonic heart development are also integral to adult heart function. The study, led by Rolf Bodmer, Ph.D., was published in Proceedings of National Academy of Sciences.
Sea Eagles May Be Re-Introduced To England:
The magnificent sea eagle, missing from England for more than 200 years, could be soaring along the Norfolk coast next summer if a proposed reintroduction scheme gets the go ahead.
Towards Domestication Of Largest Fish In Amazon:
The Amazon and its tributaries are home to almost one tenth of the world's freshwater fish biodiversity, 2500 species being recorded. The giant fish Arapaima gigas is one of the most emblematic of these. Better known by the name of paiche in Peru or pirarucu in Brazil, it is one of the word's largest freshwater fish. Certain specimens can reach 4 metres in length for a weight of 200 kg. However, this graceful predator is a victim of overfishing, and is now on the IUCN Red List of Threatened Species.
New 'Control Knobs' For Stem Cells: Changes In Membrane Voltage Control Timing Of Differentiation:
Natural changes in voltage that occur across the membrane of adult human stem cells are a powerful controlling factor in the process by which these stem cells differentiate, according to research published by Tufts University scientists.
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