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Science News Archive February 2015 - Page 6


Page 6 of 31

Researchers clarify vasospasm incidence in children with moderate to severe TBI

A study published in Critical Care Medicine defines the prevalence, associated factors, and time course of vasospasm in children with moderate to severe traumatic brain injury. The study found that children with higher Injury Severity Scores, fever at admission, and lower Glasgow Coma scores were at increased risk of developing vasospasm.

SourceNationwide Children's Hospital·JournalCritical Care Medicine·DateFeb 24, 2015

Asphaltene analysis takes a giant step

Asphaltene analysis takes a giant step with the development of an indirect method that detects and measures particles as small as 100 nanometers. This technique can accurately quantify asphaltene precipitation and account for water presence, offering valuable insights into preventing clogs in oil production lines.

SourceRice University·JournalEnergy & Fuels·DateFeb 24, 2015

Tumor location in colorectal cancer may influence survival

A recent study published in JNCI: Journal of the National Cancer Institute found that tumor location in colorectal cancer may influence survival. Patients with left-sided primary tumors had better survival outcomes than those with right-sided tumors, suggesting potential differences in gene expression patterns and cancer biology.

SourceOxford University Press USA·JournalJNCI Journal of the National Cancer Institute·DateFeb 24, 2015

Study finds hormone therapy in transgender adults safe

A comprehensive review of hormone therapy in transgender adults has found no significant increase in cancer risk despite previous concerns. The study, published in the Journal of Clinical and Translational Endocrinology, provides reassurance for individuals requiring hormone treatments, reducing anxiety and increasing access to care.

SourceBoston University School of Medicine·JournalJournal of Clinical & Translational Endocrinology·DateFeb 24, 2015

Renewable energy obtained from wastewater

Researchers at Universitat Autonoma de Barcelona have developed a technology to recover energy from wastewater using MEC, producing hydrogen with high efficiency and low voltage. The system demonstrated excellent results in hydrogen production and energy recovery, opening up potential for industrial-scale development.

SourceUniversitat Autonoma de Barcelona·JournalWater Research·DateFeb 24, 2015

Boy or girl? Lemur scents have the answer

Researchers found that pregnant lemur moms carrying boys produce simpler scents with fewer odor compounds compared to those carrying girls. The change in scent patterns correlates with changes in blood hormone levels. The study provides the first evidence of a pregnant mother's scent differing depending on the sex of her baby.

SourceDuke University·JournalBiology Letters·DateFeb 24, 2015

Stellate cells in the liver control regeneration and fibrosis

A new molecule, endosialin, on hepatic stellate cells drives liver fibrosis by activating these cells. However, its absence improved the regenerative capacity of remaining liver cells without proliferating them. This finding helps understand how liver fibrosis develops and may lead to treatments for other diseases.

Geysers have loops in their plumbing

A recent study by UC Berkeley professor Michael Manga found that geysers erupt periodically due to underground loops and side-chambers that trap steam bubbles. The study suggests that these underground features heat the water column above, eventually leading to sudden boiling and pressure release.

SourceUniversity of California - Berkeley·JournalJournal of Volcanology and Geothermal Research·DateFeb 24, 2015

Crocs rocked pre-Amazonian Peru

A new study has uncovered seven different species of crocodiles co-existing in the same place and time, filling gaps in understanding the Amazon's rich biodiversity. The research suggests that a peak in mollusk diversity was correlated with the rise of 'durophagous' crocodiles, which went extinct when the mega-wetlands transformed.

Communicating emotions

Researchers at McGill University found that visual cues are crucial in recognizing emotions conveyed by music, whereas speech relies on acoustic cues. In their study, participants identified emotions better with video and audio combined compared to just audio or speech alone.

SourceMcGill University·JournalQuarterly Journal of Experimental Psychology·DateFeb 24, 2015

New, useful feature of Moringa seeds revealed

Researchers at Uppsala University discovered that Moringa seed protein can be used to separate different materials from water, a process important in mining industries. The study found that the optimal amount of seeds needed varies depending on the material, allowing for more efficient separation.

SourceUppsala University·JournalJournal of Colloid and Interface Science·DateFeb 24, 2015

Financial incentives show no overall effect on viral suppression: May influence control of HIV in some clinical settings

A new study by the HIV Prevention Trials Network found that financial incentives had no significant overall impact on achieving viral suppression among HIV-positive patients. However, specific clinical settings such as hospital-based clinics and those with lower patient engagement saw enhanced viral suppression rates. The study also sh...

Detecting defects at the nanoscale will profit solar panel production

Researchers at the University of Huddersfield have developed a new metrology system to detect tiny defects in thin films, crucial for printed electronics and solar panels. The NanoMend project aims to reduce cost and increase reliability of flexible PV cells, paving the way for wider adoption of renewable energy.

SourceUniversity of Huddersfield·JournalInternational Journal of Energy Optimization and Engineering·DateFeb 24, 2015

'Patchwork' ovarian cancer more deadly

A Cancer Research UK study found that serous ovarian cancers with diverse genetic profiles are more likely to become resistant to chemotherapy and recur. This variability affects the prognosis of patients with these tumors, leading to earlier deaths compared to those with less varied tumors.

SourceCancer Research UK·JournalPLOS Medicine·DateFeb 24, 2015

Key genes for symbiosis between mycorrhiza fungi and trees evolved several times

An international team analyzed 49 fungal genomes, revealing that key genome adaptation enabling symbiosis evolved independently in numerous lines of fungi. The study provides crucial information on how symbiosis between fungi and trees evolved, enabling scientists to improve prediction of reaction to environmental modifications.

New study finds same patient mortality rates for experienced and new surgeons

A recent study using a new statistical methodology found that the patient mortality rates of new and experienced surgeons are similar. However, researchers emphasize that further studies are necessary to confirm these findings and account for other factors, such as changes in surgical training practices and patient demographics.

SourceAmerican Statistical Association·JournalJournal of the American Statistical Association·DateFeb 23, 2015