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Science News Archive May 2007 - Page 17


Page 17 of 20

Scientists offer new view of photosynthesis

A research team led by Neal Woodbury has uncovered a new view of photosynthesis, revealing the orchestrated movement of proteins on a millionth of a second. This discovery helps explain why changing the energetics didn't knock out photosynthesis, and offers lessons for improving organic solar cells.

SourceArizona State University·JournalScience·DateMay 3, 2007

Elastic interactions of membrane proteins

Membrane proteins communicate structurally by altering their shape to perform specific tasks, such as channel proteins allowing the flow of ions. The membrane's elastic forces dictate protein formation and organization, revealing a new mechanism for cell signaling.

SourcePLOS·JournalPLOS Computational Biology·DateMay 3, 2007

The sound of proteins

Researchers at UCLA have created a system to translate protein sequences into musical notes, with a 20-note range spanning over 2 octaves. The music is designed to be melodic and less 'jumpy,' making it more accessible to those who are visually impaired.

SourceBMC (BioMed Central)·JournalGenome Biology·DateMay 3, 2007

Maggots rid patients of MRSA

Researchers at the University of Manchester have successfully treated diabetic patients with MRSA-contaminated foot ulcers using green bottle fly larvae. The study found that all but one patient were cured within three weeks, significantly shorter than conventional treatment.

SourceUniversity of Manchester·JournalDiabetes Care·DateMay 3, 2007

A matter of force

Scientists at EMBL discovered that microtubule interactions with the cell cortex drive asymmetric cell division in nematode worms. The study reveals a pulling force generated by cortical filaments, which could apply to other organisms and contexts such as stem cell renewal.

Role of noise in neurons

A study published in PLOS Computational Biology reveals that noise effects in ion channels are much larger than previously assumed, compromising the fidelity of neural transmission. The researchers used detailed models and simulations to demonstrate how channel noise destroys information in action potentials.

SourcePLOS·JournalPLOS Computational Biology·DateMay 3, 2007

Coral reef fish make their way home

A recent study found that coral reef fish hatchlings can successfully return to their home reefs, with about 60% of young clownfish and butterflyfish making it back. The research also showed significant exchange between populations separated by open sea, highlighting the importance of marine protected areas.

Cerebral malaria: Approaching a diagnostic test

A study published in PLoS ONE has identified a protein in the brain, alpha-spectrin, as a target for antibodies in children with cerebral malaria. The discovery could lead to the development of a predictive test to improve patient care.

SourceCNRS·JournalPLOS ONE·DateMay 3, 2007

Study led by Scripps Research scientist reveals little-known cell networks vital to circadian rhythm

A recent study by Scripps Research Institute scientists has identified intercellular mechanisms as essential to maintaining cellular circadian clocks. The research highlights the importance of networked electrical and neurochemical interactions in sustaining cellular rhythms, offering new insights into the circadian clock's operation.

SourceScripps Research Institute·JournalCell·DateMay 3, 2007

Astronomer finds that Mercury has molten core

Researchers have found strong evidence that Mercury's core is molten, a discovery that could explain the planet's weak magnetic field. The study used a novel technique to detect tiny twists in Mercury's spin, which occurred as the sun's gravity exerted alternating torques on the planet.

SourceCornell University·JournalScience·DateMay 3, 2007

AGU Journal Highlights -- May 3, 2007

A new report suggests that ocean warming may cause changes to the planet's rotation, potentially shortening the length of day by approximately 0.12 milliseconds. Additionally, researchers have found a link between seasonal seismicity in the Himalayas and fluid infiltration, which could modulate earthquake generation.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateMay 3, 2007

Study finds fecal microbes high in New Orleans sediments following Hurricanes Katrina and Rita

A recent study reveals that sediments in New Orleans and Lake Pontchartrain are contaminated with fecal microbes, which persisted before the hurricanes and continue to impact water quality. The researchers recommend further investigation into the risks of exposure to human pathogens through contact with these sediments.

SourceMarine Biological Laboratory·JournalProceedings of the National Academy of Sciences·DateMay 3, 2007

Nemo comes home with a tag

Researchers have pioneered a new way to study fish populations by 'tagging' adult fish with a harmless isotope, enabling them to understand the extent to which young fish return to their 'home' area or go off to interbreed. The findings reveal that around 60% of juvenile clownfish returned to the home reef, while 40% came from distant ...

How the brain's backup system compensates for stroke

Researchers have identified how the brain's dorsal premotor cortex (PMd) compensates for disruption caused by a stroke. The study found that the PMd in the intact hemisphere increases activity to 'rescue' function in the damaged hemisphere, leading to recovery of movement.

SourceCell Press·JournalNeuron·DateMay 2, 2007