Coniferous trees are widespread in Russia, especially in Siberia, where taiga extends over tens of millions of hectares. Cedars and pines grow also in the environs of cities and in city parks and suffer from human-induced changes in environment.

Of course, coniferous trees can withstand a low-level pollution. Acid gases or soil pollutants that trees absorb are actively transported and deposited in those parts of wood, which do not perform important functions, and some elements are re

Who has not wound up nowhere in an Internet search for information that should be available about a company, an institution, or an organization? Who has not then longed to have someone to talk to who could answer questions with no hassle or waste of time? Johan Åberg, from the Department of Computer Science at Linköping University, Sweden, has studied what such a human help system might look like.

Automatic help systems with computerized answers already exist. But they seldom work very well

A team of researchers from the Universitat Autònoma de Barcelona, together with researchers from ICMAB (CSIC) and other Russian and Ukrainian scientists, have discovered an unprecedented method for accurately controlling the formation of nanometric structures made of semiconducting material in the form of islets, using promising optoelectronic applications in the most advanced communication technology. The discovery was featured as a cover story by the prestigious Nanotechnology magazine.

O

Biomed Central launches a multimedia resource of the most significant scientists of the 20th century

BioMed Central is pleased to announce the launch of Science Archive, a new multimedia resource consisting of extensive autobiographical video recordings with some of the most important scientists of the last century. The service is launching with the audiovisual autobiographies of two giants of modern biology, Sydney Brenner and John Maynard Smith with other scientists to be added l

Psychologists have found that colors enhance an individual’s visual memory. From a series of experiments, researchers learned that subjects were more likely to recall the color version of an image than the same scene in black and white. The results, which appear in the May issue of the journal Experimental Psychology: Learning, Memory and Cognition, also indicate that natural colors make a difference. A photo of a landscape with a green sky, for example, will not lodge as effectively in the brai

Work on developing a prototype wearable ’artificial pancreas’ to improve care and lifestyle for diabetic people is showing “very encouraging results” at City University, London.

The European Commission-funded project mimics the way that insulin is naturally delivered in the body and could mean that people with Type 1 diabetes – often babies and young children – could have their blood glucose levels much closer to normal than is currently possible.

“We have been developing