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Science News Archive January 2014 - Page 20


Page 20 of 28

Understanding secondary light emission by plasmonic nanostructures may improve medical imaging

Researchers at the University of Illinois discovered that modeling secondary light emission as Raman scattering can predict its dependence on laser power and wavelength, leading to improved biological and medical imaging modalities. This breakthrough has significant implications for surface-enhanced Raman scattering.

SourceUniversity of Illinois Grainger College of Engineering·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

More to biofuel production than yield

Researchers found that native perennial grasses and mixes of native prairie grasses and flowering plants outperform corn in terms of biodiversity, pest suppression, and methane consumption. The study suggests that coordinated land use policies can enhance ecosystem services, but rising commodity prices threaten this approach.

SourceMichigan State University·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

Microbes buy low and sell high

A team of researchers found that microbes engage in market-like behaviors, including comparing bids for commodities, hoarding resources, and eliminating competitors. This discovery has implications for understanding microbial interactions and could lead to new approaches in social microbiology.

SourceWashington University in St. Louis·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

Mechanism affecting risk of prostate cancer is found

A research group at Biocenter Oulu in Finland has identified a mechanism related to a transcription factor that binds strongly onto a particular SNP variant, initiating a genetic programme enhancing prostate cancer proliferation and metastasis. The study used DNA samples from tens of thousands of prostate cancer patients and healthy me...

SourceAcademy of Finland·JournalNature Genetics·DateJan 13, 2014

Study finds more targeted form of radiation improves survival in patients with head and neck cancers

Patients with head and neck cancers who received IMRT experienced improved outcomes, including a statistically significant improvement in cause-specific survival compared to those treated with conventional therapy. The study found that IMRT reduced treatment-related side effects while delivering effective cancer treatment.

Researchers find substantial drop in use of affirmative action in college admissions

Researchers found a substantial drop in the use of affirmative action in college admissions from 1992 to 2004. Selective public colleges in states affected by statewide bans or judicial rulings significantly reduced their affirmative action policies, whereas others continued to prioritize minority applicants.

SourceAmerican Educational Research Association·JournalEducational Evaluation and Policy Analysis·DateJan 13, 2014

Keeping stem cells pluripotent

Scientists have identified a key gene receptor and signaling pathway essential to maintaining human embryonic stem cells (hESCs) in an undifferentiated state. By blocking the WNT signaling pathway and its encoded receptor FZD7, researchers were able to keep hESCs in their pluripotent state.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateJan 13, 2014

'Hip-hop' students unfairly targeted, study finds

A two-year study by Michigan State University's Muhammad Khalifa found that hip-hop students are unfairly targeted and disciplined more harshly than their peers. The research highlights the need for schools to adopt a more inclusive approach, allowing students to express themselves without fear of retribution.

SourceMichigan State University·JournalMulticultural Learning and Teaching·DateJan 10, 2014

Fresh faced: Looking younger for longer

Researchers have identified a potent antioxidant called Tiron that provides complete protection against UVA radiation and oxidative stress, offering potential benefits for anti-aging and sun-damaged skin. The study suggests that Tiron could be used to develop new skincare products or supplements, but further testing is needed.

SourceNewcastle University·JournalThe FASEB Journal·DateJan 10, 2014

The cyborgs era has started

Recent developments combining machines and organisms have great potential but also raise major ethical concerns. Cyborgs, technically modified organisms with extraordinary skills, are already reality in medical implants.

SourceHelmholtz Association·JournalAngewandte Chemie·DateJan 10, 2014

Primary care practitioners hesitate to prescribe antidepressants for depressed teens

A study found that most pediatric primary care practitioners are reluctant to prescribe antidepressant medications to adolescent patients, even in severe cases. PCPs who had access to on-site mental health care providers and were more knowledgeable about depression were more likely to prescribe antidepressants.

SourceWolters Kluwer Health·JournalJournal of Developmental & Behavioral Pediatrics·DateJan 10, 2014

KIT researchers develop artificial bone marrow

Researchers have created an artificial bone marrow that can reproduce hematopoietic stem cells, which could facilitate the treatment of leukemia. The new technology uses synthetic polymers and protein building blocks to mimic the natural environment of bone marrow, allowing for more efficient stem cell reproduction.

SourceHelmholtz Association·JournalBiomaterials·DateJan 10, 2014

Comprehensive, nonsurgical treatment improves pelvic floor dysfunction in women

Researchers at the University of Missouri have developed a comprehensive, nonsurgical treatment that significantly improves symptoms of pelvic floor dysfunction in women. The treatment involves muscle strengthening and relaxation techniques, resulting in an average 80% improvement in urinary incontinence, defecatory dysfunction, and pe...

SourceUniversity of Missouri-Columbia·JournalFemale Pelvic Medicine & Reconstructive Surgery·DateJan 10, 2014

1 species, 2 outcomes: Team seeks source of body louse pathology

A new study found that the human body louse can transmit bacterial infections to humans, while the human head louse does not. The researchers discovered that several immune genes were regulated differently in head and body lice after infection with the bacteria, and the infection progressed further in body lice over time.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalInsect Molecular Biology·DateJan 10, 2014

Social media helps users embrace differences and provide support to one another, MU study finds

A recent study by University of Missouri researchers found that social media platforms enable users to connect with others who share similar experiences and emotions, such as Lady Gaga fans. The study highlights the importance of online communities in providing emotional support and a sense of belonging among marginalized groups.

SourceUniversity of Missouri-Columbia·JournalPopular Music & Society·DateJan 10, 2014

'Superlens' extends range of wireless power transfer

Duke University researchers have successfully demonstrated wireless power transfer using a 'superlens' technology that focuses magnetic fields, enabling the transmission of power over distances much larger than traditional setups. This breakthrough could enable smaller, more practical wireless charging solutions for everyday use.

SourceDuke University·JournalScientific Reports·DateJan 10, 2014

Study quantifies costs when failed banks shun financial transparency

A new study by MIT professor Joao Granja shows that more transparent banking practices can help ensure stability when banks fail and reduce costs for consumers or taxpayers. The study found that banks with better disclosure practices received higher bids for their assets during bankruptcy auctions, leading to lower costs for regulators.

SourceMassachusetts Institute of Technology·JournalJournal of Accounting Research·DateJan 10, 2014

Some motor proteins cooperate better than others

Researchers at Rice University have found that motor proteins cooperate differently, with myosinVa producing more force than kinesin-1. This cooperation is crucial for regulating the transport of organelles within cells, and breakdowns in motor function are implicated in human diseases.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateJan 9, 2014