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Science News Archive July 2011 - Page 4


Page 4 of 25

Refocusing the boom in biomarker research

The search for biomarkers has made significant strides in disease diagnosis and treatment monitoring, with some tests already incorporated into everyday medicine. However, recent studies have shown that promising cancer biomarkers are no better than existing ones, highlighting the need for new approaches.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateJul 27, 2011

Who takes risks?

New research suggests that women and men perceive risks differently, with women taking more social risks and men taking more financial risks. This difference is partly due to differences in how familiar individuals are with different situations.

SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateJul 27, 2011

UM School of Medicine Institute for Genome Sciences cracks code of German E. Coli outbreak

A team of researchers led by Dr. David Rasko analyzed the genomic data of the German E. coli outbreak strain, revealing it was a unique combination of enteroaggregative and enterohemorrhagic E. coli subtypes. The analysis provided critical information for treating infected patients and tracing the source of the pathogen.

SourceUniversity of Maryland Medical Center·JournalNew England Journal of Medicine·DateJul 27, 2011

Teacher influence persists in early grades

A new study by Michigan State University found that teacher influence persists in early grades, affecting students' reading and math scores in later grades. The research highlights the importance of identifying and hiring effective teachers in elementary school to improve student achievement.

SourceMichigan State University·JournalTeachers College Record The Voice of Scholarship in Education·DateJul 27, 2011

Social media poised to drive disaster preparedness and response

A recent study suggests that social media tools like Facebook and Twitter can improve disaster preparedness and response by harnessing crowd-sourcing technologies and electronic communications. The authors propose several examples of social media tactics to boost disaster preparedness, including mobile apps, buddy systems, and RSS feeds.

SourceUniversity of Pennsylvania School of Medicine·JournalNew England Journal of Medicine·DateJul 27, 2011

Children and adolescent mobile phone users at no greater risk of brain cancer than non-users

A recent study published in the Journal of the National Cancer Institute found that children and adolescent mobile phone users are not at a statistically significant increased risk of brain cancer compared to non-users. The study included data from over 352 brain cancer patients and 646 control subjects, and found no clear exposure-res...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateJul 27, 2011

The first true view of global erosion

A new study by University of Vermont geologists provides the first broad, standardized view of pre-human erosion rates, measuring 1599 measurements from 87 sites worldwide. The study reveals that slope is a key driver of erosion, contradicting previous assumptions about rainfall's role.

SourceUniversity of Vermont·JournalGSA Today·DateJul 27, 2011

Social networking elephants never forget

Researchers tracked female Asian elephant friendships for five seasons in Sri Lanka's Uda Walawe National Park, finding that elephants tend to congregate in groups of three adult females. Analysis revealed a larger, stable network of friends, with those having few companions being more loyal than those with many.

SourceBMC (BioMed Central)·JournalBMC Ecology·DateJul 26, 2011

Progress on research of polymer solar cells

Scientists have designed a new type of polymer solar cell that can effectively tune its band gap and energy levels by incorporating different acceptor groups. The resulting polymers exhibit promising photovoltaic properties, with high open-circuit voltages achieved despite their varying band gaps.

How the modular structure of proteins permits evolution to move forward

A comparative study of nematode species reveals that changes in a short protein domain can alter signaling networks involved in organ development. The modular structure of proteins allows for the conservation of important parts while enabling opportunities for short domains to change, facilitating evolutionary development.

SourcePLOS·JournalPLOS Biology·DateJul 26, 2011

Models show Coho salmon at risk in US urbanizing watersheds

Researchers used models to estimate the impact of urban land development on Coho salmon populations, predicting a significant decline in numbers due to spawner mortality syndrome. The study suggests that toxic chemical contaminants in urban storm water runoff may be the primary cause of the recurrent fish kills.

SourceWiley·JournalIntegrated Environmental Assessment and Management·DateJul 26, 2011

Sea squirt cells shed light on cancer development

A research team led by Bradley Davidson discovered that specialized structures in sea squirt cells, called invadopodia, may help cancer cells evade elimination processes. In contrast to cancer cells, sea squirt cells use these structures to pick up chemical signals for development, not invasion.

SourceUniversity of Arizona·JournalNature Cell Biology·DateJul 26, 2011

College-educated undocumented young adults face same narrow range of jobs as their parents

A survey of undocumented young adults raised and educated in America found that they end up working in the same labor jobs as their parents, despite having a college education. The study highlights the challenges faced by these individuals due to their lack of legal status, which limits their career options and daily lives.

SourceUniversity of Washington·JournalAmerican Sociological Review·DateJul 26, 2011

Spare the rod and develop the child

A new study published in Social Development journal found that schools using corporal punishment performed worse on tasks requiring planning and self-control. Children exposed to punitive environments had lower verbal intelligence and increased behavioral problems related to executive-functioning deficits.

SourceUniversity of Toronto·JournalSocial Development·DateJul 26, 2011