Brightsurf Science News & Current Events

August 09, 2004
Media giants don't always lead to less diverse content
Just because a big company owns all the media outlets in town doesn't necessarily mean newspapers and broadcast stations will look and sound alike, according to a review of the research in this area published in the summer issue of the journal Contexts.

UC Davis rises in NSF rankings
Figures for fiscal year 2002-03 show UC Davis ranking 14th in the nation in R&D expenditures.

Portions of brain are smaller in children born prematurely, researchers at Stanford and Packard find
A collaborative study between the Stanford, Yale and Brown medical schools compared the brain volumes of two types of 8 year olds: those born prematurely and those born full-term.

Size does matter when choosing a mate
The difference in size between males and females of the same species is all down to the battle for a mate, according to a study of shorebirds published by British scientists today (August 9 2004).

More aggressive breast cancer tumors found in African American women
A genetic mutation in the p53 tumor suppressor gene, related to a more aggressive form of breast cancer, occurs four times more often in African American patients than their white counterparts, Yale researchers report in the August 9, 2004 online edition of the journal Cancer.

Is David Beckham the New Princess Di?
University of Warwick research reveals that in the wake of Diana, Princess of Wales's premature death, David Beckham has stepped into a public role on a par with her place in the celebrity constellation, and that their appeal is similar.

Short-term hormone therapy: Risks and benefits
A computer-based simulation model suggests that short-term hormone therapy (HT) is associated with increases in quality of life for women with menopausal symptoms, but may shorten life expectancy, according to an article in the August 9/23 issue of The Archives of Internal Medicine, one of the JAMA/Archives journals.

vCJD continues to baffle scientists; teenagers disproportionately susceptible
That young people tend to eat more beef products is not enough to explain the strikingly high proportion of new-variant Creutzfeldt-Jacob disease cases among children and adolescents.

The mentally-demanding job and development of Alzheimer's disease
Researchers at University Hospitals of Cleveland and Case Western Reserve University School of Medicine have found a new and interesting link between the mental demands of an occupation and later development of Alzheimer's disease.

Latinos experience high rates of eye disease
Latinos have high prevalence rates of visual impairment and blindness, and those who are older, unemployed, divorced or widowed, or have diabetes are more likely to be visually impaired.

Low-risk bypass patients fare better with high-volume surgeons and hospitals
Patients at low risk of dying after coronary artery bypass graft (CABG) surgery have a significantly better chance of survival when treated by surgeons and hospitals that handle many cases.

Eyes' vessel changes could predict severe hypertension risk
The eyes may be the window to the soul - and future hypertension.

You are what you eat: New insight into autophagy
Somewhere between cannibalism and recycling, the process known as autophagy plays a key role in regulating cell growth, metabolism and survival.

Genetic mutation linked to more aggressive breast cancer found more often in African-Americans
Alterations in a tumor suppressor gene called p53 are more prevalent in breast cancer of African-American women than white women, according to a new study.

Mexican-Americans face far higher stroke risk
Mexican-Americans have a far higher chance of suffering a stroke than non-Hispanic whites, and the risk is exactly doubled among those in their 40s and 50s.

Injured methamphetamine users stay in the hospital longer and have higher hospital charges
Trauma patients who test positive for methamphetamine are more likely to be admitted to the hospital and have significantly higher hospital costs, according to an article in the August issue of The Archives of Surgery, one of the JAMA/Archives journals.

Sex pheromone blocked in bug
Science can put a dent in the sex life of a scarab beetle by blocking its ability to pick up female scent.

Liver transplantation outcomes have significantly improved for patients with hepatitis B
Since the early 1990s, therapeutic options for patients undergoing liver transplantation for hepatitis B have evolved to include HBV immune globulin (HBIG) and lamivudine.

The hyperspectral imaging endoscope: A new tool for non-invasive in vivo cancer detection
With traditional biopsy, small amounts of living tissue are removed from the body and examined in a laboratory to ascertain or rule out a diagnosis of malignancy.

Evolvability could be a driving force in drug resistance
Not only has life evolved, but life has evolved to evolve.

Engineers tackle sports
Sports engineers from around the world will bring a scientific perspective to some of our favorite pastimes Sept.

Blackout prevention effort launched as anniversary looms
As the dog days of summer approach, the electrical grid feels the heat, but a new integrated data network may help the aging transmission system weather the season without another massive blackout like the one experienced over much of the Eastern United States and Canada last August.

News briefs from the journal CHEST, August 2004
News briefs from the August issue of the journal CHEST include: how biofeedback helps asthma patients use less steroids; ACE inhibitors may cause mouth swelling in some patients; and ACE inhibitors and statins fail to affect survival in patients with pulmonary fibrosis.

Promising hospital anti-infection strategy probably won't work, study shows
A recent strategy alternating the most commonly used antibiotics in hospitals has sparked hope of stopping the spread of antibiotic resistance.

What is a comet made of?
A new method for looking at the composition of comets using ground-based telescopes has been developed by chemists at UC Davis.

Retinal findings in severe malaria appear related to disease
Retinal findings in children with severe forms of malaria (with brain involvement and severe anemia) appear related to disease outcomes such as prolonged coma and death, according to an article in the August issue of The Archives of Ophthalmology, one of the JAMA/Archives journals.

Scientist who discovered Sly syndrome finds new research path to explore for treating the disease
Findings by the Saint Louis University scientist who discovered Sly Syndrome point to a promising new direction for research into treating the disease and similar, more common disorders.

2004 Dirac Medal given to Bjorken and Callan
James D. Bjorken, professor emeritus of physics, Stanford University, and Curtis G.

Understanding of headaches improves with revised criteria
Newly revised criteria for diagnosing headaches reflects a better understanding of some disorders and the identification of new ones, according to a special article published in the

US Latinos have high rates of eye disease and visual impairment
Los Angeles Latino Eye Study (LALES) found Latinos living in the U.S. have high rates of eye disease and visual impairment, and the study found a significant number may be unaware of their eye disease.

Heart attacks without chest pain more often fatal
According to a new study in the journal CHEST, people who have heart attacks or other heart conditions who do not experience chest pain have triple the death rate of other cardiac patients and are less likely to receive medications to slow the progression of a heart attack.

Many drugs prescribed for elderly Americans are risky
Many Americans over the age of 65 hold prescriptions for drugs considered potentially risky for elderly patients, according to a new study by Duke University Medical Center researchers.

Small animal imaging gives cancer clues
Advances in biomedical imaging are allowing UC Davis researchers to use mice more effectively to study cancers comparable to human disease.

Study examines inappropriate medication prescribing for elderly patients
Prescribing of inappropriate medications for elderly patients appears relatively common, according to an article in the August 9/23 issue of The Archives of Internal Medicine, one of the JAMA/Archives journals.

Latinos have high levels of visual impairment and eye disease
Many Latinos have eye diseases that may potentially blind them or impair vision, according to the Los Angeles Latino Eye Study, conducted by researchers at the Keck School of Medicine of the University of Southern California.

MCG students discover medicinal role for pancake mix
Chicken liver may seem like an odd component of a medical procedure, but for thousands of patients over the past generation, the cuisine has been doctor's orders to help diagnose gastrointestinal disorders.

Mentally demanding jobs may protect against Alzheimer's disease
People with Alzheimer's disease are more likely to have had less mentally demanding careers than their peers who do not have Alzheimer's, according to a study published in the August 10 issue of Neurology, the scientific journal of the American Academy of Neurology.

Coordinating power of circadian rhythms keeps estrus and pregnancy on track
Researchers at Northwestern University have begun to uncover the basis for how the daily patterns of biological behavior known as circadian rhythms are able to control complex events such as reproduction, which in female mammals requires precise but dynamic regulation of hormone levels.

New hypoxic event found off Oregon coast
For the second time in three years, a hypoxic

Despite darkness, nocturnal bees learn visual landmarks while foraging at night
Day-active bees, such as the fabled honeybee, are well known for using visual landmarks to locate a favoured patch of flowers and to find their way back to their hive.

Few US breast surgeons doing enough operations to optimize outcomes
A new study finds many U.S. surgeons are not doing adequate numbers of operations for primary breast cancer to optimize patient survival.

Scientists formulate intelligent glass that blocks heat not light
Soaring air conditioning bills or suffering in the sweltering heat could soon be a thing of the past, thanks to UCL chemists.
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