Add BrightSurf on Google Email

Science News Archive 2012 - Page 34


Page 34 of 333

Researchers implicate well-known protein in fibrosis

Researchers at Northwestern University have implicated toll-like receptor 4 (TLR4) in the development of tissue fibrosis, a hallmark of scleroderma. The study found that mutations in the TLR4 gene made mice resistant to experimental scleroderma and that patients with scleroderma had abnormal TLR4 levels in affected tissues.

SourceNorthwestern University·JournalAmerican Journal Of Pathology·DateNov 20, 2012

Warming to shift heavy rainfall patterns in the UK

A study found that extreme rainfall in the UK is expected to shift later in the year, especially in the south-east, where it will peak in autumn. This could lead to an increased risk of flooding, particularly when river catchments are at their maximum water capacity.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateNov 20, 2012

Human obedience: The myth of blind conformity

Classic studies on obedience and conformity have been revisited to show that people do not blindly conform but actively identify with and believe in the authority's actions. The authors' own prison experiment found that participants only acted in terms of group membership and empowered themselves to resist their assigned position.

SourcePLOS·JournalPLOS Biology·DateNov 20, 2012

Natural fungus may provide effective bed bug control

Researchers at Penn State have discovered a natural fungus, Beauveria bassiana, that can effectively control bed bugs. The study found that the fungus infects and kills bed bugs within five days, even when they are in close proximity to uninfected individuals.

SourcePenn State·JournalJournal of Invertebrate Pathology·DateNov 20, 2012

Robotic fish research swims into new ethorobotics waters

Researchers at NYU Tandon School of Engineering have developed a robotic fish that can attract live zebrafish using real-time visual feedback. The study found that zebrafish are more attracted to robots that replicate the behavior of informed fish, demonstrating the effectiveness of real-time visual feedback in influencing live animal ...

SourceNYU Tandon School of Engineering·JournalJournal of The Royal Society Interface·DateNov 20, 2012

Seals gamble with their pups' futures

Researchers at Durham University found that some grey seal mothers adopt a flexible parenting style, adjusting their behavior to local conditions. This approach allows them to give their pups a better chance of survival, but also carries risks if they misjudge the environment.

SourceDurham University·JournalPLOS ONE·DateNov 20, 2012

Reasons for severe bleeding in hemophilia revealed

Researchers discovered that thrombin activity propagates through blood in steady waves, crucial for sealing large wounds but potentially leading to complications. This finding sheds light on the mechanisms behind severe bleeding in hemophilia patients and has implications for other cardiovascular disorders.

SourceCell Press·JournalBiophysical Journal·DateNov 20, 2012

Engineered bacteria can make the ultimate sacrifice

Scientists have engineered Escherichia coli bacteria that can deliberately die to protect their population, promoting the survival of survivors. The altruistic behavior emerges after sufficient time has passed and can be controlled by tuning the extent of programmed cell death.

SourceEMBO·JournalMolecular Systems Biology·DateNov 20, 2012

Adenotonsillectomy may help resolve obstructive sleep apnea in children with Prader-Willi syndrome

A new study from Nationwide Children's Hospital found that adenotonsillectomy is effective in most children with Prader-Willi syndrome who have mild to moderate obstructive sleep apnea, but may not be curative for those with severe forms. The procedure helped normalize sleep patterns in 89% of patients.

SourceNationwide Children's Hospital·JournalArchives of Otolaryngology - Head and Neck Surgery·DateNov 20, 2012

Electronic visits offer accurate diagnoses, may lead to overprescribing of antibiotics

Researchers found that e-visit patients were more likely to receive antibiotics and less likely to have relevant testing ordered by their physicians before receiving medication. Despite this, the study suggests that e-visits can improve access to care and convenience for patients without compromising quality.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalArchives of Internal Medicine·DateNov 19, 2012

Vision stimulates courtship calls in the grey tree frog

A new study published in Behavioral Ecology and Sociobiology found that male grey tree frogs increase their courtship calls when they can see a female approaching. The research, led by Dr. Michael Reichert, suggests that visual cues play a crucial role in attracting mates in nocturnal anurans.

SourceSpringer·JournalBehavioral Ecology and Sociobiology·DateNov 19, 2012

New species literally spend decades on the shelf

A study found that it takes an average of 20.7 years for a newly collected species to be described, with some species taking up to 12 years. This long 'shelf life' poses a significant challenge for conservation efforts, which may come too late if not addressed promptly.

SourceCell Press·JournalCurrent Biology·DateNov 19, 2012

Inpatient sleeping drug quadrupled fall risk

A commonly prescribed inpatient sleeping drug has been associated with a significant increase in falls among hospital patients. The study found that zolpidem use was linked to a fourfold higher fall rate compared to non-users.

SourceWiley·JournalJournal of Hospital Medicine·DateNov 19, 2012

Dry leaves make for juicy science

A team of middle school students, led by a University of Arizona graduate student, conducted the first systematic study on leaf shrinkage when drying out. They found that leaves shrink about 20% on average, but variables such as species and structural investment determine the amount of shrinkage.

SourceUniversity of Arizona·JournalAmerican Journal of Botany·DateNov 19, 2012