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Science News Archive July 2011 - Page 14


Page 14 of 25

A manganite changes its stripes

A team of researchers has uncovered a startling new feature of lanthanum strontium manganese oxide, which can change its stripes from fluctuating to static and back. At the right temperature, it switches from a metallic state to an insulator, exhibiting colossal conductivity changes.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateJul 14, 2011

Print your own teeth

Researchers have developed a method to create perfect-fit prosthetic dentistry using 3D printing technology. The approach combines medical imaging with computer-aided design to produce complex shapes like teeth and crowns. This technique has the potential to reduce production time and improve fit, making dental care more efficient.

SourceInderscience Publishers·JournalInternational Journal of Rapid Manufacturing·DateJul 14, 2011

Ready, go!

Researchers at Stowers Institute for Medical Research discovered the role of Super Elongation Complex (SEC) in controlling gene expression during early development. They found that SEC facilitates coordinated and rapid induction of genes, including Hox genes, which are essential for embryonic development.

SourceStowers Institute for Medical Research·JournalGenes & Development·DateJul 14, 2011

The first studies utilizing the Collaborative Cross mice are published in Genome Research

The Collaborative Cross mouse strains have been used to map causative loci for complex traits like body weight and white head-spotting, showcasing the power of ancestry-based approaches. The studies also revealed the scope of phenotypic variation present in the CC lines, providing insights into breeding effects on genetic structure.

SourceCold Spring Harbor Laboratory·JournalGenome Research·DateJul 14, 2011

When the brain remembers but the patient doesn't

A study published in Cortex demonstrates that the unconscious brain continues to process information even when the conscious brain is incapacitated. The researchers found that a patient with prosopagnosia, or face blindness, showed brain activity responding to familiar faces despite not being able to recognize them.

SourceElsevier·JournalCortex·DateJul 14, 2011

Environmental factors predict underserved children's physical activity, Wayne State research finds

A study by Jeffrey Martin found that social and environmental factors like classmate support and confidence play a crucial role in determining physical activity levels among underserved children. The study also revealed that girls are less likely to engage in physical activity than boys, highlighting the need for targeted interventions.

SourceWayne State University - Office of the Vice President for Research·JournalResearch Quarterly for Exercise and Sport·DateJul 14, 2011

Genome blueprint for horse and human vaccines

Researchers have identified genetic similarities between Streptococcus pyogenes and Streptococcus equi, two bacteria that cause potentially fatal infections in humans and horses. The study suggests a shared strategy for causing disease and offers hope for developing novel vaccines for both species.

SourceMicrobiology Society·JournalJournal of Medical Microbiology·DateJul 14, 2011

Molecules 'light up' Alzheimer's roots

Rice University researchers have created a metallic molecule that becomes strongly photoluminescent when it attaches to amyloid fibrils, which form plaques in the brains of Alzheimer's patients. This breakthrough technique has the potential to improve the design of medications to treat the devastating disease.

SourceRice University·JournalJournal of the American Chemical Society·DateJul 13, 2011

Neural mechanisms of object recognition

Researchers examined the brain of a person with object agnosia, revealing that damage to a specific area can affect distant cortical regions. The study suggests that neural plasticity is possible even when the brain is damaged in adulthood.

SourceCell Press·JournalNeuron·DateJul 13, 2011