Brightsurf Science News & Current Events

June 05, 1998
Researchers Suggest New Disease Model May Some Day Lead To Effective Drugs ForHIV-Associated Dementia
Researchers have long believed that macrophages, the scavenger cells of the immune system, do not divide.

Chaos Comes To Light In Asymmetric Microlasers, Making Them A Thousand Times More Powerful
A team of scientists from the Max Planck Institute for the Physics of Complex Systems in Dresden/Germany, Yale University and Bell Laboratories have demonstrated novel, asymmetrically-shaped semiconductor microlasers with more than 1,000 times the power of earlier, symmetric counterparts (Science, vol.

How Reliable Are League Tables?
Marshall and Spiegelhalter describe a new statistical technique that can be used to quantify the uncertainty about ranking.

Researchers Identify New Component Of Circadian Clock
Researchers at Harvard Medical School have identified a protein that partners with the mammalian CLOCK protein to regulate circadian rhythms.

Duke Researchers Call Gene Therapy A Promising Strategy For Sickle Cell Anemia
In a first step toward an effective treatment for sickle cell anemia, researchers at Duke University Medical Center have shown that they can use a new type of gene therapy to correct the defect in human blood cells.

World's Most Powerful Microlasers
Using chaos theory, scientists from Yale and Bell Labs have demonstrated novel semiconductor microlasers with more than 1,000 times the power of conventional, disk-shaped microlasers.

Half Of All Doctors Are Below Average
Dr Jan Poloniecki writes that it will be be of little value if the Bristol case before the GMC is resolved merely by striking off three doctors.

Georgia Scientists Study Salt Marsh To Understand Global Warming
An interdisciplinary team of Georgia scientists has found a surprisingly high rate of carbon and nutrient turnover by microbes in one of Georgia's coastal salt marshes, a highly productive ecosystem.

Hurricane Update Predicts Average Season
Colorado State University hurricane forecaster William Gray said a fading El NiƱo will help produce more hurricane activity this year than in 1997, although storm counts should be about average.

Waste Asphalt Doesn't Pollute Groundwater, UF Researchers Say
Old asphalt scraped off roads does not bleed toxins into groundwater and is safe to use as construction fill, according to tests by University of Florida engineers.

Cops And Docs Find Evidence In The Other DNA
This science story (as it appeared in the NIST Tech Beat of June 1998) describes how NIST chemists have developed a Standard Reference Material for labs performing DNA typing (AKA

Satellite Images Hint At How Repeat Of Mayan Tragedy Can Be Avoided
NASA scientist and colleagues say that deforestation in Guatemala may have caused the Maya to disappear - and deforestation today may repeat that tragedy.

Lessons From The Bristol Case
Professor Tom Treasure outlines the role that national audits for surgery can play in monitoring performance and concludes that if the profession must now monitor itself effectively so that a system of regulation is not imposed upon it.

Operations Researchers Meet At Tel Aviv University
The theme of the international convention of the Institute for Operations Research and the Management Sciences (INFORMS) is

World's Fastest Electrometer
Yale scientists have developed the world's most sensitive electrometer, a transistor so sensitive it can count individual electrons passing through a circuit.

Depression May Be A Risk Factor For Heart Disease In Men
Julia Hippisley-Cox et al from Queen's Medical Centre in Nottingham investigate whether depression occurs before the onset of ischaemic heart disease.

Urologists Stimulate Nerves Near Ankle To Treat Incontinence
Urologists at UT Southwestern Medical Center at Dallas soon will test whether severe incontinence can be improved by applying electrical stimulation to a spot near the ankle to stimulate the nerves that affect bladder control.

Researchers Show Mechanism And Similarities Of Biological Clocks
Scientists picking apart the inner workings of the biological clocks that govern the daily cycles of life have now identified several key cogs of the machinery and have shown that these main parts are remarkably similar between invertebrates and mammals.

The Need For A National Body For Research Misconduct
Dr Richard Smith, Editor BMJ, writes that on the issue of research misconduct, the question is no longer

Molecular "Fossils" Of Early Life
Yale scientists report they have synthesized molecules like those that probably gave rise to the earliest life forms on Earth nearly 4 billion years ago, thus creating a biochemist's version of

Tracking Hepatitis C: Health Project Demos Worldwide Early-Warning System For Disease Outbreaks; Sandia Tests Disease-Tracking Approach
As part of a Sandia National Laboratories-led effort to create a worldwide disease tracking network, hospital emergency rooms in three New Mexico cities and in a formerly secret Russian city this week began gathering and posting on the Internet information about an emerging disease, hepatitis C, that physicians say could have major world health implications.

Competence, Professional Self Regulation And The Public Interest
Professor Rudolf Klein explores some of the questions raised in the GMC inquiry at Bristol from the perspective of a lay observer.

Physicists Find Evidence That Neutrinos Have Mass
A Japan-U.S. physics collaboration that includes a team from the University of Washington has found evidence indicating that subatomic particles known as neutrinos have mass.

Dealing With Research Misconduct In The United Kingdom
After years of inactivity over the problem of research misconduct in the United Kingdom, there is now enthusiasm to tackle the problem.

'Catching The Wave' May Lead To More Solid Foundations
This science story (as it appeared in the NIST Tech Beat of June 1998) describes how structural engineers at NIST and the University of Texas at Austin are improving the method for predicting soil liquefaction (the process where tremors turn solid ground into quicksand-like soup) in earthquake-prone areas.

New National Guidelines Make Pumping Iron And Aerobic Activities An Easier "Fit" Into Daily Life
Updated national exercise guidelines released this week by the American College of Sports Medicine (ACSM) in Orlando show breaking up aerobic exercise into three 10-minute sessions throughout the day can be just as effective as one 30 minute session.

Study Shows Athletes Get No Kick From Nasal Strips
Athletes who wear a nasal strip thinking it will increase their air intake and improve their performance are fooling themselves, a new study by exercise science researchers at the University at Buffalo shows.
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