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Science News Archive April 2007 - Page 3


Page 3 of 17

Vaccine to cope with viral diversity in HIV

Researchers developed an efficient algorithm to create vaccines that can combat the genetic diversity of HIV-1. The algorithm captures immunogens for both the Nef and Gag proteins, reflecting high-frequency viral strains and their mutations.

SourcePLOS·JournalPLOS Computational Biology·DateApr 26, 2007

News tips from the Journal of Biological Chemistry

The Journal of Biological Chemistry published several studies revealing new insights into cholesterol metabolism without oxygen, a compound effective against blood cancer, bacteria's quorum sensing mechanism, and HIV infection. These discoveries could lead to the development of new pharmaceuticals and treatments for related diseases.

SourceAmerican Society for Biochemistry and Molecular Biology·JournalJournal of Biological Chemistry·DateApr 26, 2007

Spinal manipulation in children studied

A recent study by the University of Alberta highlights the need for improved reporting and surveillance to better understand the incidence of adverse events in children treated with spinal manipulation. Serious injuries, such as stroke and paraplegia, were found to be rare but warrant further investigation.

SourceUniversity of Alberta·JournalPEDIATRICS·DateApr 26, 2007

Drug therapy can reduce preterm births and decrease lifetime medical costs

Researchers found that treating expectant mothers with 17 Alpha Hydroxyprogesterone caproate reduces short-term and lifetime medical costs in offspring by an estimated $2 billion annually. This could lead to significant cost savings for the US healthcare system, making it a promising preventive measure against preterm births.

SourceElsevier Health Sciences·JournalAmerican Journal of Obstetrics and Gynecology·DateApr 26, 2007

How dogs don't ape

New research shows that dogs selectively imitate actions, adjusting to circumstances like human infants. The study found that dogs use their mouths instead of paws when the demonstrator's mouth is occupied.

SourceCell Press·JournalCurrent Biology·DateApr 26, 2007

Wanting ahead -- Birds plan for future desires

A new study reveals that Western scrub-jays can anticipate their future needs independently of their current motivation. The birds store food in places where they will be hungry and recover it at a later date. This innovative behavior demonstrates the birds' ability to plan ahead, a feature previously thought to be uniquely human.

SourceCell Press·JournalCurrent Biology·DateApr 26, 2007

Autopsies are crucial despite concerns

Autopsies continue to reveal major pre-death diagnostic errors in around 30% of cases, highlighting their importance in improving national mortality data. The procedure also teaches valuable lessons about the inherent uncertainty in medical practice and is integral to training and development for doctors.

SourceThe Lancet_DELETED·JournalThe Lancet·DateApr 26, 2007

Researchers 'look into' plant cells to increase ethanol yields

Scientists have found that pretreating corn plant tissue with hot water increases ethanol yields by exposing minute pores of the cell walls, allowing enzymes to break down cellulose more efficiently. This discovery could lead to a viable method for large-scale production of cellulosic ethanol, a key component of green fuels.

SourcePurdue University·JournalBiotechnology and Bioengineering·DateApr 26, 2007

Nanotechnology provides 'green' path to environmentally sustainable economy

A new report from the Project on Emerging Nanotechnologies explores the potential of nanotechnology to build an environmentally sustainable society. The report highlights several promising applications, including the use of nanoparticles to clean up toxic waste sites and reduce lead emissions in electronics manufacturing.

Female ticks have market on gluttony

Female ixodid ticks exhibit remarkable weight gain following mating, with some species increasing in size up to 100 times their original size. This phenomenon is linked to the tick's unique lifestyle and reproductive strategy, which involves prolonged feeding periods and specialized signals triggered by copulation.

SourceUniversity of Alberta·JournalJournal of Insect Physiology·DateApr 26, 2007

Increasing survival of organ transplant patients by reducing time interval for transported organs

Reducing time interval for transported organs has been shown to increase survivorship and improve outcomes in heart transplant patients. The Organ Care System (OCS) uses warm blood perfusion technology to maintain organs in a living state during transport, allowing for evaluation of organ function and reducing cold ischemic time.

Asymmetry due to perfect balance

A team of scientists has developed a new method to analyze the development of cortical polarity in cell membranes, which is essential for various cellular processes. They combined experiments with living cells and a mathematical model, showing that polarized regions are defined with near-optimal precision.

SourceMax-Planck-Gesellschaft·JournalCell·DateApr 25, 2007

'No' doesn't always mean 'no'

A study suggests that people who decline to participate in research may not necessarily object to taking part, but rather due to confusion about the research nature and process. This finding highlights the importance of clarifying potential sources of confusion in participation requests.

SourceBMC (BioMed Central)·JournalBMC Health Services Research·DateApr 25, 2007