Stress-related disorders have increased over the last few years, and a great many of these problems are ascribed to factors in the workplace. Bosses have a great influence on the working conditions of employees, and their own stress and ailments probably have an impact on their employees.
This are results presented in a new dissertation by Peggy Bernin at Karolinska Institutet in Sweden. The dissertation presents a study carried out on three groups, one of them comprising managers in 24 coun
Our pedigree has been revised. Our closest relatives–gorillas, orangutans, chimpanzees, gibbon apes, and baboons–have been joined by an animal whose appearance hardly resembles that of humans: the Dermoptera or the flying lemur.
Flying lemurs live in Southeast Asia. The largest species can be 75 cm tall. This animal can glide between trees thanks to skin stretched between the front and back legs.
This discovery was made by a research team headed by Professor Ulfur Arnason at Lund
Introducing genetically modified organisms into wild populations holds a greater theoretical risk of extinction of natural species than previously believed, according to two Purdue University scientists.
William Muir, professor of animal sciences, and Richard Howard, professor of biology, used computer modeling and statistical analyses to examine the hypothetical risks of introducing genetically modified organisms into wild populations.
“We examined these hypothetical situations bec
’Little shavers’ could prove key in nanoelectronics
They’re cute little shavers, and they could play a key role in the “small” revolution about us.
They’re boron nanowhiskers, the world’s first such crystalline nanowires, made by chemists at Washington University in St. Louis.
Reporting in the May 1 issue of the Journal of the American Chemical Society (JACS), graduate student Carolyn Jones Otten, her advisor William. E. Buhro, Ph.D., Washin
A discovery reported in the latest edition of the journal Nature (June 13, 2002) — that fungi on the roots of some trees in the Northeastern United States help supply much-needed calcium in forest soils battered by acid rain — would seem to ease worries about the worrisome form of pollution.
But don’t stop worrying just yet, warns Timothy J. Fahey, the Liberty Hyde Bailey Professor of Natural Resources at Cornell University and a co-author of the report, “Mycorrhizal weathering of ap
The emergence of mutant frogs with extra arms and legs may smack of a low-budget sci-fi script. But it is a reality, and a new study provides more evidence that ultraviolet radiation could be responsible. The findings are reported in three consecutive papers in the July 1 print issue of Environmental Science & Technology, a peer-reviewed journal of the American Chemical Society, the world’s largest scientific society.
Concern has been mounting for years over the depletion of the ozone
Fewer Infections may mean less antibiotic therapy
Public health officials concerned about the rising problem of antibiotic resistance ¾ the immunity that bacteria develop to common prescriptions ¾ may have an ally in a common household beverage. Findings published in a research letter to the editor in the June 19, 2002 issue of The Journal of the American Medical Association (JAMA) indicate scientists have discovered that regular consumption of cranberry juice cocktail may offer prote
The female hormone oestrogen may have a role in HPV viral infection, strains of which are implicated in cervical cancer, shows research in Sexually Transmitted Infections.
Human papillomavirus (HPV) infection is a common genital infection seen most often in young women and adolescents. There are often no visible signs of infection.
Researchers tested 175 sexually active women for HPV infection during routine examinations at a sexual health clinic. The women were all aged between 14
Constructed wetlands: a green technology for integrated water management
The quality of our Flemish surface waters has improved significant during the last decade. Nevertheless, in a densely populated area like Flanders we are still confronted with polluted surface water. The main reason for the current degree of pollution of our rivers and canals are the numerous (untreated) discharges caused by the households, the industry and the agricultural sector. In completing the construction
João Pedro Magalhães, researcher in the Biology of Aging, suggests, in work published in the June edition of the magazine “Experimental Gerontology” and entitled “The evolution of mammalian aging”, that the study of certain species of reptiles and amphibians that apparently do not age could lead to discoveries about aging.
For this Portuguese scientist the secret of eternal youth could be in the relationship, already scientifically shown, between the size and longevity of different species
‘Golden approach’ human proteine classification
Proteomics on a chip
Knowledge of the human proteome may provide us with even more insight than knowledge of DNA. This ‘protein blueprint’ of a human contains valuable information about cell properties and disease causes. A single cell, however, already consists of several thousands of proteines. To be able to classify them, dr. Richard Schasfoort of the University of Twente is developing a special chip, able to make hundreds or tho
A new study of migraine headaches suggests behavioral therapy “not medication — may be the most effective weapon against migraine pain for teen-agers.
Researchers with the Ohio University Headache Treatment & Research Project enrolled 30 teens ages 12 to 17 in the pilot project. Half were treated with triptans — a fairly new class of drugs widely used for migraine in adults — and half were assigned to a phone-administered behavioral therapy program that included instruction in biofeedbac
University of California, Santa Barbara scientists and U.S. Army researchers are making progress in the study of spider dragline silk, according to recently published proceedings of the National Academy of Sciences.
The protein that lets spiders drop and helps the web to catch prey is what interests the researchers. The molecules are designed to be pulled; they are elastic and very strong. The silk can be extended 30 to 50 percent of its length before it breaks. It is stronger than steel a
A team of scientists from the U.S. Department of Energy’s Brookhaven National Laboratory, the U.S. Department of Commerce’s National Institute of Standards and Technology (NIST), and the University of Oslo in Norway has provided new insight into the superconductivity of magnesium diboride (MgB2), an unusual superconductor discovered only last year. The new result appears in the June 17, 2002 issue of Physical Review Letters.
Understanding the origin of superconductivity — the ability of som
Few of the women who undergo tubal sterilization or whose husbands undergo vasectomy later go on to regret either procedure, according to a study funded by the National Institute of Child Health and Human Development (NICHD) and conducted by the Centers for Disease Control and Prevention (CDC). The study appears in the June issue of Obstetrics & Gynecology.
The study found the proportion of women who experience regret was essentially the same -about 6 to 7 percent-five years after their hus
Technology May Help Remove Contaminants from Drinking Water Supplies
Membrane filter technology is helping to remove barriers to cleaner drinking water.
University of Houston researchers are studying how membrane filters, such as those currently used in some home water purification systems, might someday be used on a large scale to remove contaminants and organic compounds that can affect the purity and color of municipal water supplies.
Understanding how such filte
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