Brightsurf Science News & Current Events

August 14, 1997
Molecular 'Radar' Tracks Key Process In Embryonic Development
A molecular 'radar' that makes it possible to track signaling enzymes inside a cell in real time has been developed at the Weizmann Institute of Science.

Creativity Breeds Happy Families, Study Finds
What makes a family happy? No one characteristic determines this, say psychologists who examined characteristics of families that were rated happy by one of the children, but parents who work in creative professions seem to create the most happy home environments.

Newly Discovered Human Protein Provides Important Target For Cancer Therapy
The discovery of a key molecule linked to the immortalization of human tumor cells provides an important new target for anti-cancer drug design.

American Fisheries Society Conference Attracting 2,000 Plus Scientists To Explore "Interfacing"
Forty-four symposia cover such topics as shark ecology and biology, educational outreach, introduced nuisance species, protection of vulnerable aquatic species, restoration of Pacific salmon populations, new fish passage technology, and contributions of Native American traditional knowledge to modern fisheries management.

New Ultrasound Contrast Agent Leads To Full Patient Recovery
An ultrasound contrast agent reflects the signal from an ultrasound probe to reveal a blocked portion of the middle cerebral artery that is causing an ischemic stroke in a 63- year-old man.

MGH Researchers Find Connection Between Aging Gene And Insulin Receptor
Researchers at the Massachusetts General Hospital have discovered that a gene used by the tiny worm C. elegans to regulate how much it eats, how fat it becomes and how long it lives is strikingly similar to the gene for the human insulin receptor.

Neighborhoods And Violent Crime: A Multilevel Study Of Collective Efficacy
The Project on Human Development in Chicago Neighborhoods found that the quality of relationships between neighbors is an important factor in producing the safety and security of a neighborhood.

Ultrasound Helps Pediatric Heart Surgeons After Open Heart Surgery
Transcranial Doppler ultrasound is giving doctors a new tool for monitoring the brain during open-heart surgery in children.

Oak Regeneration In Some Ohio Forests Is Failing, Researchers Find
Oak trees in some Southeastern Ohio forests are failing to reproduce on their own, even in fertile areas, according to an Ohio University study.

Study Shows That Educational Software Doesn't Make The Grade
An evaluation of educational software designed for use by children during their first five years of school has given poor grades to software designers and vendors.

New Compound May Help Treat Both Breast Cancer And Osteoporosis
Scientists have found a new compound they say appears to act as a natural estrogen where it is needed in the body, but as an anti-estrogen in tissues where the hormone can be harmful.

Vitamin C Deficit Linked To Skin Disease
A deficiency of vitamin C may play a role in a complex disease called porphyria cutanea tarda, or PCT, according to a new report.

Stream Biodiversity Slow To Recover From Impact Of Agriculture
Can rivers recover from negative impacts of agricultural activities, such as failure to control erosion from plowed fields?

Menstrual Phase Linked To Ineffective Mammograms
Menstruating women have twice the risk of false-negative mammogram results when breast cancer screening is done during the last two weeks of their menstrual cycle, according to a University of Toronto study in the August 15 issue of Cancer.

Can America Be Colorblind? Research Findings Suggest Not
A paper released today by the American Psychological Association at its 105th Annual Convention in Chicago states that a color-blind approach to equal opportunity for all Americans will fail.

Ultrasound Opens Window To Our Thoughts
A Catwaba College psychologist is using one of the latest forms of ultrasound to actually

Archaeologists Find 'Poor House' Likely Sheltered UNC-CH Students
Digging in the dirt unearthed remains of a mysterious building on the University of North Carolina at Chapel Hill campus in late June, and digging through dusty records in Hillsborough in late July solved the mystery of the buildingĀ¹s purpose.

Most Teen Girls With Eating Disorder Symptoms Deny They Need Help
About six out of 10 high school girls with eating disorders or related symptoms do not believe they need counseling for their behaviors, a new study shows.

Oaks' Defenses Help Gypsy Moth Caterpillar Fend Off Virus
The relationship between gypsy moth caterpillars, the virus that kills them and the oak leaves they feast on is more complicated than expected, and leaf enzymes as well as tannins play an important role, according to a Penn State entomologist.

Transcranial Doppler 90% Effective In Separating Ischemic And Hemorrhagic Stroke
Ultrasound is more than 90 percent effective in distinguishing between ischemic and hemorrhagic stroke under emergency treatment conditions, German neurologosts report.

Shrinking Information Storage To The Molecular Level
The first experimental demonstration of a transistorless approach to computing, called quantum-dot cellular automata (QCA), is reported by University of Notre Dame researchers in the Aug.

3D Ultrasound Gives Better View Of Brain's Arteries
New computer workstations electronically reconstruct 2D ultrasound data sets as 3D images.

Despite Warnings, People May Form False Memories During Hypnosis
People undergoing hypnosis may develop false memories, even when warned about the possibility of creating fictional past events.

New Ultrasound Technique Is Alternative To Cerebral Angiography
Researchers from Brazil and Canada reported today (Aug. 14) that a combination of transcranial Doppler ultrasound and duplex carotid ultrasound can accurately measure the degree of blockage in the carotid arteries that serve the brain, averting the need for cerebral angiography, a risky technique that can provoke a stroke.

Expert Says Focus On Winning Doesn't Always Help Athletes Succeed
The American focus on

DNA Testing For Genetic Disorders: 'Does It Run In The Family?' Explains Options, Limitations, Problems
To know or not to know. That is the medical question that faces some people today as the technology for DNA testing sometimes outstrips the ability to treat any disorders that may be discovered.

High-Tech Robots Take Exploration To New Heights
Unmanned robotic vehicles have performed crucial roles in scientific expeditions during recent weeks.

More To Drought Than Meets The Eye
Just as you can't judge a book by its cover, you probably can't judge a tree's drought tolerance by its leaf response, according to Penn State researchers.
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