Vitamin D is a prognostic marker in heart failure, study finds Survival rates in heart failure patients with reduced levels of vitamin D are lower than in patients with normal levels. This is the finding of a major study carried out in the Netherlands.
New pump created for microneedle drug-delivery patch Researchers have developed a new type of pump for drug-delivery patches that might use arrays of "microneedles" to deliver a wider range of medications than now possible with conventional patches.
Mothers matter! High social status and maternal support play an important role in mating success of male bonobos The higher up a male bonobo is placed in the social hierarchy, the greater his mating success is with female bonobos, researchers have found. But even males who are not so highly placed still have a chance of impressing females. A new study finds evidence of direct support from mothers to their sons in agonistic conflicts over access to estrous females.
New bee species discovered in downtown Toronto A doctoral student who discovered a new species of bee in Toronto has completed a study of 84 species of sweat bees in Canada. Nineteen of these species are new to science -- never before identified -- including the new Toronto bee, which is actually quite common in eastern Canada and the US. The new research will help scientists track bee diversity, and understand pollination biology and insect social behavior.
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