Adolescents and young adults who gamble are more likely to have substance use disorders and psychiatric problems, according to an article in the November, 2004 issue of The Archives of General Psychiatry.
Miniature tools, barely visible to the naked eye, are solving pattern-carving problems in glass, ceramics, and other brittle materials, a group of researchers reported in the upcoming December issue of the Journal for Micromechanics and Microengineering.
United Nations University in Venezuela displayed new biotechnology techniques to protect cultural heritage this week at their international symposium. Books, photos, paintings, sculptures, and other artistic treasures are threatened by the harsh tropical environment. However, the specialized program United Nations University Program for Biotechnology in Latin American and the Caribbean (UNU-BIOLAC), directed by José Luis Ramirez, is trying to remedy that. Ramirez’s team uses biotechnology to identify specific organic materials, such as paper and wood, used in art and historical records to devise more effective ways of protecting them.
Our understanding of what is emotionally "good" or "bad" may be generated by dopamine transmitters in the brain, according to a study published in the November issue of Science. A team of researchers from the University of Colorado at Boulder found that dopamine concentration is linked to decision-making ability.
Take anything you learned about genetics in high school and throw it out the door. Incredibly, we may have to do so as we come to understand the prion theory of disease. Suggested to explain Mad Cow and other related diseases, prions are an earth-shaking idea, casting doubt on the status of DNA and RNA as the molecules of life. Not a bacteria, not a fungi, not a virus, but a protein, the prion is a novel infectious agent. The theory that a protein, a non-living object, can propagate disease has become a lightning-rod for controversy and has made the prion hypothesis one of the most hotly contested issues in molecular biology.
Why are so many images of fear symbolized by the wolf? From childhood, we shiver as the shifty-eyed wolf terrorizes Little Red Riding Hood and the three little pigs; Bram Stoker's Dracula opens with a wolf chase through a sinister forest; even the simple howl of the wolf is a symbol of something menacing and dark. The aversion towards wolves is easily understandable, but it causes a lack of objectivity about the wolf's real ecological role.