Brightsurf Science News & Current Events

August 20, 2000
New class of supramolecular complexes bind to DNA
For three decades, continuing problems with resistance and toxic side effects from chemotherapy has stimulated extensive research to create alternative drugs and drug delivery systems to treat cancer.

Changes in diet related to prevalence of asthma and allergies
Childhood diet may be critical to the development of asthma and allergies, reports a study in Thorax.

Rising ammonia emissions attributed to cars, not livestock
Researchers presented evidence here today that cars may be the main source of haze-inducing ammonia, rather than livestock, as previously thought.

Flame retardant structural materials also inexpensive
Virginia Tech researchers have developed structural composites comprised of lightweight polymers that are flame retardant and have structural properties in excess of most epoxies.

Lessons in chemistry and gallantry offered in the same lecture
The history of surface chemistry is a story of honorable men and pioneering women.

Cars and bridges that almost never rust
A plastic coating that virtually eliminates rust and corrosion -- which could help cars, bridges and pipelines last up to 10 times longer -- was described at the 220th national meeting of the American Chemical Society.

UCSD chemists develop portable nerve gas sensor
Using a silicon chip and parts from an inexpensive CD player, chemists at the University of California, San Diego have developed a portable nerve-gas sensor capable of detecting 'G-type' nerve agents, such as sarin, soman and GF.

Chemist uses DNA to trigger an alternative chemotherapy method
A chemist at Washington University in St. Louis has developed an alternative chemotherapy approach that uses DNA as a trigger rather than a target.

Depression treatment should take health beliefs into account
A treatment plan for depression should include nonmedical factors based on a patient's own health beliefs, a new study reports.

First human studies promising for popular nutritional supplement
The first results of human studies of a popular dietary supplement, conjugated linoleic acid (CLA), indicate the supplement may help overweight adults lose weight and fat, maintain weight loss, retain lean muscle mass and control adult-onset diabetes.

The ins and outs of facial processing
A study using sophisticated imaging technology has shown that how a key part of the brain reacts to faces can differ depending on whether individuals are looking at faces from their own racial group or from another racial group.

Researchers advancing use of polymers for nonlinear optical materials
A significant challenge in creating NLO devices from polymers has been obtaining optical-control characteristics that are stable for months to years.

Worrying rise in chronic lung disease in women over past decade
The rates of chronic lung disease (COPD) in women have almost doubled over the past decade, shows research published in Thorax.

CWRU dental students launch community clinic in Dominican Republic
Students and faculty at CWRU's School of Dentistry have launched a new community dental clinic in Guaricano, an impoverished city in the Dominican Republic.

Lard-fired boiler cleaner than fuel oil
Pork producers who pride themselves on using every part of the pig except the oink, have seen the use of lard in cookies, chips and other foods decrease.

New random and block copolymers bring fuel cells closer to everyday use
Proton-exchange membrane (PEM) fuel cells -- the most suitable for automotive, home, and computer-power uses because they operate at moderate temperatures -- are polymer-based.

We are family: the imperative for a chimpanzee genome project
With chimps 99% genetically identical to humans, you might wonder if the difference between man and ape is all in the head.

Passive smoking at work increases rate of sick leave among employees
Workers forced to breathe in their colleagues' cigarette smoke are significantly more likely to take sick leave and require medical attention, shows a study in the Journal of Epidemiology and Community Health.

Virginia Tech researchers explore surface modifiers that would allow more universal adhesives
Virginia Tech researchers have designed a new type of polymer surface modifier that could result in more universal adhesives because material surfaces could be 'switched' to interact with different kinds of molecules.

Researchers seek effective, fast, clean coatings
Virginia Tech researchers are developing a new polymer structure, based on epoxy-butene chemistry, that provides a protective -- scratch and chemical resistant -- coating that hardens quickly, has no byproducts, and is inexpensive to produce.

Student suggestions enhance lab exercises
The undergraduate curriculum needs to familiarize students with computer assisted methods and chemical structure visualization.

New approach to ensuring unadulterated honey pot
Commercial purchasers of natural honey may one day have a quick and easy test to assure that sugars from other sources do not adulterate the product, according to Penn State researchers.

Mastering gravity: making liquids dance
Physics professor Charles Rosenblatt exercises scientific wizardry by levitating liquids and crystals to vary the effective gravitational force on them over time.
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