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Science News Archive March 2009 - Page 10


Page 10 of 26

U-M researcher's idea jells into potential new disease-detection method

Researchers at the University of Michigan have developed a new method to detect nitric oxide in exhaled breath, a potential indicator of diseases such as lung cancer and tuberculosis. The technique uses molecular gels that congeal when exposed to nitric oxide and oxygen, allowing for simpler and less subjective detection methods.

SourceUniversity of Michigan·JournalJournal of the American Chemical Society·DateMar 22, 2009

Study quantifies racial disparities in cancer mortality rates between blacks and whites

A new UCLA study analyzes data from the Surveillance and Epidemiology End Result (SEER) cancer registry and the National Health Interview Survey (NHIS), finding that African Americans are more likely to get cancer in the first place, contributing to a life expectancy disparity of 1.47 years for men and 0.91 years for women.

SourceUniversity of California - Los Angeles·JournalJournal of General Internal Medicine·DateMar 20, 2009

A quarter of the world's population depends on degrading land

A new study measures global land degradation using remotely sensed imagery, revealing 24% of the world's productive land is degrading. The worst-hit areas are Africa south of the Equator, SE Asia and S China, with a quarter of the world's population depending on these degrading areas.

SourceWiley·JournalSoil Use and Management·DateMar 20, 2009

Environmental cleaning intervention reduces transmission of multidrug-resistant organisms in ICUs

A new study found that a rigorous environmental cleaning intervention can reduce the transmission of methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE) in hospital intensive care units (ICUs). The multi-modal cleaning protocol reduced MRSA acquisition by 61%, while VRE acquisition decreased by...

Scientists find solution to solar puzzle

Researchers from the University of Sheffield and Queen's University Belfast have made a groundbreaking discovery about the Sun's corona. They found evidence for the existence of Alfvén waves, which transport energy to heat the Sun's outer atmosphere, reaching temperatures of over a million degrees.

SourceUniversity of Sheffield·JournalScience·DateMar 20, 2009

New technique used to profile anthrax genome

Scientists at Georgia Institute of Technology developed a new approach using RNA-Seq to comprehensively define the transcriptome of Bacillus anthracis. This technique provides a more detailed view of how bacteria regulate their gene expression, allowing for improved tasks like antibiotic discovery and microbial engineering.

SourceGeorgia Institute of Technology·JournalJournal of Bacteriology·DateMar 20, 2009

Brown-led team offers first look at how bats land

A Brown University-led team has documented the unique landing approaches of three bat species, including a tree-roosting bat that executes a four-point landing and two cave-roosting bats that perform a two-point landing. The study sheds new light on how bats evolved and could provide insights into their widespread success.

SourceBrown University·JournalJournal of Experimental Biology·DateMar 20, 2009

Motor proteins may be vehicles for drug delivery

Researchers have discovered that motor proteins can be engineered for efficient cargo transport, potentially leading to targeted cancer treatment. By altering the function of these proteins, scientists aim to develop new drugs that inhibit kinesin activity during cell division, slowing tumor growth.

SourcePenn State·JournalCurrent Biology·DateMar 20, 2009

Perceptions of similar language may prevent understanding of sexual harassment policies

A recent University of Missouri study found that individuals' perceptions and definitions of flirting and sexual harassment can be mismatched, leading to ineffective workplace policies. Researchers discovered that using similar language can create an illusion of shared meaning, making it difficult for employees to understand when they ...

SourceUniversity of Missouri-Columbia·JournalCommunication Monographs·DateMar 19, 2009

The human brain is on the edge of chaos

The human brain operates in a self-organized critical state, characterized by optimal memory and information-processing capacity. Researchers used brain imaging techniques to measure synchronization between brain regions, finding dynamic changes consistent with critical dynamics.

SourcePLOS·JournalPLOS Computational Biology·DateMar 19, 2009

Brown chemists create more efficient palladium fuel cell catalysts

Researchers at Brown University have developed a novel approach to creating palladium nanoparticles with increased surface area, resulting in improved efficiency and stability. The breakthrough enables the production of fuel cell catalysts that are four times more stable and twice as active, making them ideal for future applications.

SourceBrown University·JournalJournal of the American Chemical Society·DateMar 19, 2009

Coronary artery bypass surgery could be better than catheter and balloon intervention for diabetics and patients aged 65-75 years

A recent study comparing coronary artery bypass graft surgery (CABG) with catheter/balloon/stent percutaneous intervention (PCI) found that CABG may be a better option for patients with diabetes and those aged 65-75 years. The research, involving 7812 patients, revealed lower mortality rates in these subgroups.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 19, 2009

The origin of supernovae confirmed

Researchers have proven that supernovae are caused by the explosion of two dying red supergiant stars, providing a breakthrough in understanding massive star death and the formation of chemical elements. This discovery sheds light on the origin of the universe's heaviest elements.

SourceUniversity of Copenhagen·JournalScience·DateMar 19, 2009

Study finds most adolescents sent to group homes still involved with drugs/crime 7 years later

A new RAND Corporation study reveals that most adolescents referred to long-term group homes in Los Angeles County continue to struggle with substance abuse and crime seven years after being sent to the program. The study found that 36% had used hard drugs in the past year, while 66% reported engaging in illegal activities.

SourceRAND Corporation·JournalAmerican Journal of Public Health·DateMar 19, 2009