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Science News for July 27, 2007


Prevent smoking to reduce risk of erectile dysfunction

A Tulane University study published in the American Journal of Epidemiology found a significant association between cigarette smoking and erectile dysfunction. The research suggests that quitting smoking may help reduce the risk of erectile dysfunction, with estimated 22.7% of cases potentially attributable to cigarette smoking.

SourceTulane University·JournalAmerican Journal of Epidemiology·DateJul 27, 2007

Wild weather forces farmers to adapt

Scientists propose new cropping strategies for a variable climate, exploring crop sequencing decisions based on weather patterns and management goals. The study's findings highlight the importance of understanding short-term crop sequencing effects on agronomic and environmental attributes.

SourceAmerican Society of Agronomy·JournalAgronomy Journal·DateJul 27, 2007
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Prenatal stress keeps infants, toddlers up at night, study says

Anxious or depressed mothers-to-be are at increased risk of having children who experience sleep problems in infancy and toddlerhood. Babies born to mothers classified as anxious or depressed during pregnancy exhibit more sleep problems, even after controlling for other factors.

SourceUniversity of Rochester Medical Center·JournalEarly Human Development·DateJul 27, 2007

Sexual problems of long-term cancer survivors merit more attention

A study of long-term female cancer survivors found that they valued sexuality but were not adequately prepared for the sexual issues introduced by their cancer or treatment. Discussing sexual consequences with physicians matters greatly to these patients, yet infrequent conversations occur.

SourceUniversity of Chicago Medical Center·JournalGynecologic Oncology·DateJul 27, 2007
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

A new brake on cellular energy production discovered

Scientists identify MTERF3 as a mitochondrial factor that inhibits mtDNA expression and slows down cellular energy production. This discovery may lead to new ways of treating diseases related to impaired mitochondrial function.

SourceKarolinska Institutet·JournalCell·DateJul 27, 2007

Two bacteria better than one in cellulose-fed fuel cell

A team of Penn State researchers successfully created a microbial fuel cell that consumes cellulose and produces electricity by pairing two types of bacteria. The fuel cell achieves a maximum power density of 150 milliwatts per square meter, which is lower than current designs but shows promise for future improvements.

SourcePenn State·JournalEnvironmental Science & Technology·DateJul 27, 2007

Mailman School of PH receives $23M to lead network evaluating cardiac interventions

The Mailman School of Public Health has been awarded a $23 million grant to lead a network evaluating cardiac interventions. The network, which includes NewYork-Presbyterian Hospital/Columbia University Medical Center, aims to assess the safety and efficacy of novel diagnostic and therapeutic interventions in cardiac surgery.

SourceColumbia University's Mailman School of Public Health·DateJul 27, 2007

Diabetes drugs increase risk of heart failure, research shows

A class of diabetes drugs increases the risk of heart failure in patients with type 2 diabetes, according to a new analysis of over 78,000 patients. The risk is estimated to be up to 100% higher in patients taking thiazolinediones, and may be triggered by fluid retention caused by the drugs.

SourceAtrium Health Wake Forest Baptist·JournalDiabetes Care·DateJul 27, 2007
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Trials underway for 'essential' new TB vaccine

Clinical trials are underway for a new TB vaccine developed by Dr Helen McShane, which could lead to significant improvements in TB control and treatment. The vaccine has shown promising results in boosting the immune response against TB and has the potential to prevent severe forms of the disease.

SourceWellcome Trust·DateJul 27, 2007

St. Jude study solves mystery of mammalian ears

Researchers at St. Jude Children's Research Hospital have solved the long-standing mystery of how mammalian ears amplify sound, concluding that movement of cilia atop hair cells dominates response in non-mammals but somatic motility drives amplification in mammals.

SourceSt. Jude Children's Research Hospital·JournalProceedings of the National Academy of Sciences·DateJul 27, 2007