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Science News for March 20, 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