Add BrightSurf on Google Email

Science News for December 20, 2005


File compression can expand mammography's power

Researchers have discovered that compressing digitized mammograms using file-compression techniques improves their interpretability by radiologists, allowing for remote screenings in underserved communities. The compression method retains essential features that are crucial for cancer diagnosis.

SourcePurdue University·JournalRadiology·DateDec 20, 2005

Brain research wins $1 million

Dr Anthony Hannan from the Howard Florey Institute has won a $1 million Pfizer Australia Research Fellowship to study environmental factors that delay degenerative brain diseases. His recent work showed that mental and physical exercise can slow down HD progression in mice, challenging genetic determinism.

Depression is not good for your heart

A Swedish study found that patients diagnosed with depression were 1.5 times more likely to develop coronary heart disease than those without depression. Young adults between 25-39 years old had an even higher risk of developing CHD, with a ratio of 3.

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateDec 20, 2005

Also in the December 21 Journal of the National Cancer Institute

A study by David L. Rimm and colleagues found that high biomarker antibody concentrations were associated with low patient survival in breast cancer patients, while low concentrations were linked to good outcomes. Another study examined the impact of long-term storage on circulating DNA levels in lung cancer patients.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 20, 2005

Adults with lazy eye can improve

A new study published online by Vision Research documented a 70 percent improvement in eye chart performance in 19-year-old subjects with lazy eye. The training program involved detection of a small "gabor" exercise that generalized to marked improvement in standard vision tests.

SourceUniversity of Southern California·JournalVision Research·DateDec 20, 2005

Visualization techniques can help smokers quit

A study of 71 smokers found that guided imagery techniques increased smoking abstinence rates by 14 percentage points. The results suggest that clinicians can use these techniques to aid patients in quitting smoking, contributing to the country's goal of reducing smoking prevalence to 12% by 2010.

SourceBlackwell Publishing Ltd.·JournalJournal of Nursing Scholarship·DateDec 20, 2005

Arterial leg disease may be more common in blacks

A recent study found that African-Americans are more likely to develop arterial leg disease, a condition that can lead to amputation if left untreated. Cigarette smoking is the single most important risk factor for the disease, which is also associated with hypertension, diabetes, and high cholesterol levels.

SourceCenter for Advancing Health·JournalAmerican Journal of Preventive Medicine·DateDec 20, 2005

Mom and dad are key to how we handle stress

Researchers investigated how parents influence adolescents' coping mechanisms for stress. Secure parent-child relationships are associated with the development of adaptive coping styles, which can lead to long-term positive outcomes. In contrast, insecure relationships may result in maladaptive coping strategies that increase distress.

SourceBlackwell Publishing Ltd.·JournalJournal of Research on Adolescence·DateDec 20, 2005

Screening chest x-ray detects early-stage lung cancers at high rates, study results show

A recent study published in the Journal of the National Cancer Institute found that screening chest x-rays can detect early-stage lung cancers at high rates. The study involved 77,465 participants and showed a significant reduction in lung cancer mortality among current smokers, with a detection rate of 6.3 cases per 1000 individuals.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 20, 2005

Getting a handle on minimal surfaces

Researchers Matthias Weber, David Hoffman, and Michael Wolf discovered a genus one helicoid, a minimal surface with an extra feature: a handle. This finding has implications for understanding the properties of surfaces at the nanoscale and could lead to new applications in structures and materials science.

SourceIndiana University·JournalProceedings of the National Academy of Sciences·DateDec 20, 2005