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Science News for May 20, 2010


Disagreement on symptom-reflux association analysis parameters in infants

A study found that three commonly used symptom-reflux association analysis (SAA) parameters often disagree on diagnosing gastroesophageal reflux disease (GERD) in infants. The results show a significant discrepancy between the parameters, highlighting the need for a combination of diagnostic methods to accurately diagnose GERD in infants.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateMay 20, 2010

Scientists see new hope in fight against HIV and TB

New scientific advances offer significant promise for reducing the spread of HIV/AIDS and tuberculosis, including novel TB drugs, rapid diagnostic tests and bold prevention approaches like PrEP. Experts call for policymakers to capitalize on these advances to save millions of lives from these deadly epidemics.

SourceBurness·JournalClinical Infectious Diseases·DateMay 20, 2010

Communication intervention in preschool children with autism improves parent-child interaction but does not deliver clinically significant reduction in autism symptoms

A new autism intervention for preschool children showed improvements in parent-child interaction, but failed to deliver a clinically significant reduction in autism symptoms. The study assessed 152 children aged 2-4 years and found that the PACT intervention led to enhanced communicative and social development.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMay 20, 2010

PLoS ONE launching the Biodiversity of Saba Bank collection

The Biodiversity of Saba Bank collection provides critical information on the benthic communities and reef fish that inhabit the Saba Bank. The research reveals six new species potentially new to science collected from one of the largest coral reefs in the Caribbean, highlighting the need for marine protected areas to protect this uniq...

SourcePLOS·JournalPLOS ONE·DateMay 20, 2010

An sRNA controls a bacterium's social life

Researchers have identified a small RNA molecule that controls social behavior in Myxococcus xanthus, a soil bacterium. The mutation of interest, 'Pxr', had previously been found to give an evolved mutant of M. xanthus a competitive edge over both the mutant's immediate parent and its ancestor.

SourceIndiana University·JournalScience·DateMay 20, 2010

Drug policy: Time for change in both USA and UK

The US plan prioritizes prevention, treatment, and law enforcement, focusing on reducing youth drug use and prescription abuse. In contrast, the UK is facing criticism for its drug policy, which has been influenced by media pressure and ideological opinions, leading to a lack of evidence-based decision-making.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMay 20, 2010

New associations between diabetes, environmental factors found by novel Stanford analytic technique

Researchers at Stanford University School of Medicine discovered a previously unknown association between type-2 diabetes and high levels of polychlorinated biphenyls and gamma-tocopherol, a form of vitamin E. The novel analytic technique, called environment wide association studies (EWAS), identified these relationships surpassing tho...

SourceStanford Medicine·JournalPLOS ONE·DateMay 20, 2010

Older patients offer insight into the future of cystic fibrosis

Research on older cystic fibrosis patients reveals significant differences in disease outcomes between males and females, with females living longer and having delayed but equally severe disease. The study's findings provide valuable insights into the future treatment of cystic fibrosis as this population continues to grow.

SourceNational Jewish Health·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateMay 20, 2010

Pistachios offer multiple benefits

Researchers found that eating pistachios increases blood serum levels of lutein, beta-carotene, and gamma-tocopherol. These antioxidants may help lower oxidized LDL concentrations, which can contribute to inflammation and plaque buildup inside blood vessels.

SourcePenn State·JournalJournal of Nutrition·DateMay 20, 2010

Books in home as important as parents' education in determining children's education level

A 20-year study of over 70,000 cases in 27 countries found that parents with books in the home increase their child's educational attainment by 3.2 years, similar to having highly educated parents or a university education. Having just 20 books at home also has a significant impact on propelling children to higher levels of education.

SourceUniversity of Nevada, Reno·JournalResearch in Social Stratification and Mobility·DateMay 20, 2010

Artificial butterfly in flight and filmed

A team of Japanese researchers successfully built an ornithopter, a replica model of a swallowtail butterfly, to demonstrate its ability to fly with simple flapping motions. The study's findings suggest that flight can be achieved without feedback control, opening up possibilities for future aerodynamic systems.

SourceIOP Publishing·JournalBioinspiration & Biomimetics·DateMay 20, 2010

HHMI renews grant for Rice's global health program

The Howard Hughes Medical Institute has renewed a four-year grant for Rice University's global health program, Beyond Traditional Borders (BTB), with a $1.2 million investment. BTB challenges students to design practical solutions to real-world problems in developing nations, resulting in over 10% of Rice undergraduates taking the cour...

Reducing niacin intake can prevent obesity

A recent study found that reducing niacin intake can lead to improved glucose metabolism and reduced appetite in individuals with obesity. The research team also discovered a significant correlation between increased per capita niacin consumption and rising obesity rates among US children and adolescents.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateMay 20, 2010

Diplopedia a success at US Department of State

A new study by Rice University and the US Department of State's Office of eDiplomacy examines the five-year history of Diplopedia, a Wikipedia-style diplomacy Web 2.0 tool. The platform has grown to over 10,000 articles written by DOS employees, providing valuable information for desk officers and foreign service experts.

The sound of seduction

A study by Susan Hughes found that both sexes use lower-pitched voices when speaking to more attractive partners, indicating a potential means of demonstrating attraction. The researchers suggest that altering one's voice may be a learned behavior based on cultural stereotypes rather than actual vocal characteristics.

SourceDick Jones Communications·JournalJournal of Nonverbal Behavior·DateMay 20, 2010

Surgical procedure offers new option for pediatric patients with rare cancer in abdomen

A new surgical procedure called hyperthermic intraperitoneal chemotherapy (HIPEC) has been shown to increase the survival of children with desmoplastic small round cell tumor (DSRCT), a rare and aggressive cancer. Patients who received HIPEC had a 3-year survival rate of 71%, compared to 26% for those who received only standard treatment.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalJournal of Pediatric Surgery·DateMay 20, 2010

Changing the face of science

The Science Posse program, developed by Brandeis professor Irv Epstein, recruits and trains underrepresented students for college-level science. The program has seen significant success, with all currently enrolled students planning to major in science and many attending prestigious summer research programs.