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Science News for June 29, 2007


NASA satellite captures first view of 'night-shining' clouds

The Aeronomy of Ice in the Mesosphere (AIM) satellite has captured the first occurrence of mysterious iridescent polar clouds. The clouds form during the Northern Hemisphere's summer season and are being seen more frequently at lower latitudes than ever before. Preliminary information suggests a connection with global climate change.

SourceNASA/Goddard Space Flight Center·DateJun 29, 2007

Workers in no-smoking restaurants show lower carcinogen levels

A recent study found that restaurant workers exposed to tobacco smoke have higher levels of NNK, a potent lung carcinogen. The researchers concluded that clean air exemptions are unjustified and policymakers should prohibit smoking in all indoor workplaces.

SourceCenter for Advancing Health·JournalAmerican Journal of Public Health·DateJun 29, 2007

Surgeons say minimally invasive lung surgery should be standard care

Researchers at the University of Cincinnati have successfully integrated minimally invasive lung surgery into their training programs with a standardized plan, increasing procedures by 57% over four years. The minimally invasive lobectomy results in faster recovery time and less pain for patients.

SourceUniversity of Cincinnati·DateJun 29, 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.

Discovery could help bring down price of DNA sequencing

A Northwestern University researcher has explained the nature of the resistive force that determines the speed of DNA as it moves through a nanopore, using classical hydrodynamics. This understanding could help scientists slow down the DNA enough to make it readable and usable for medical and biotechnology applications.

SourceNorthwestern University·JournalPhysical Review Letters·DateJun 29, 2007

Anti-gay hate crimes widespread

A new study by University of California, Davis professor Gregory Herek found that nearly four in 10 gay men and about one in eight lesbians and bisexuals have been targeted due to their sexual orientation. The survey also revealed significant disparities in victimization rates among gay men, lesbians, and bisexuals.

SourceUniversity of California - Davis·JournalJournal of Interpersonal Violence·DateJun 29, 2007

Key to male infertility

Researchers at The Feinstein Institute for Medical Research have isolated MIF, a substance in semen that regulates sperm maturity and fertility. Elevated or low levels of MIF were found to be associated with infertility, while high levels were linked to autoimmune diseases.

SourceNorthwell Health·JournalMolecular Medicine·DateJun 29, 2007
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Common preterm labor drug has more side effects than alternative

A new study from Stanford Medicine found that magnesium sulfate, commonly used to arrest preterm labor, has more mild to serious side effects than the alternative treatment nifedipine. The research suggests that physicians should consider side effects when choosing which drug to prescribe.

SourceStanford Medicine·JournalObstetrics and Gynecology·DateJun 29, 2007

Angioplasty procedure has potential to damage kidneys, research shows

Researchers found that thousands of tiny particles are released during angioplasty and stenting, which can impair kidney function. The study suggests that new devices may prevent debris release and improve patient outcomes.

SourceAtrium Health Wake Forest Baptist·JournalJournal of Indonesian Society for Vascular and Endovascular Surgery·DateJun 29, 2007

AGU Journal Highlights -- June 29, 2007

Research reveals a 20-year reversal in water mass trends in the subtropical North Atlantic, with upper waters warming and intermediate waters cooling. This finding suggests complex mechanisms drive oceanic responses to global warming.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateJun 29, 2007
Apple iPhone 17 Pro

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

Smoking interferes with thinking and memory in recovering alcoholics

A study found that recovering alcoholics who smoked showed lower improvement in tests of memory, reasoning, judgment, and visual/spatial coordination compared to non-smokers. Smokers demonstrated inferior performance in auditory/verbal learning and memory, cognitive efficiency, executive skills, processing speed, and working memory.

SourceUniversity of California - San Francisco·DateJun 29, 2007

Undifferentiated networks would require significant extra capacity

Researchers at Rensselaer Polytechnic Institute and AT&T Labs found that treating all traffic identically would need an extra 60% capacity in modestly loaded networks, increasing to 100% or more during heavy demand. This suggests that differentiated services are more efficient and cost-effective.

SourceRensselaer Polytechnic Institute·DateJun 29, 2007

Kalyon elected Fellow of American Institute of Chemical Engineers

Dr. Dilhan M. Kalyon, Highly Filled Materials Institute director at Stevens Institute of Technology, recognized for his significant contributions to chemical engineering and the field. He has made a meaningful impact through process or product development, education, technical publications, patents, and theoretical developments.

SourceStevens Institute of Technology·DateJun 29, 2007

Modern brains have an ancient core

Researchers have discovered that modern brain centers containing hormones show similarities to those found in marine worm-like ancestors. These hormone-secreting cells are multifunctional and have sensory properties, suggesting they played a key role in conveying environmental cues to the body.

SourceEuropean Molecular Biology Laboratory·JournalCell·DateJun 29, 2007