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Science News Archive September 2015 - Page 33


Page 33 of 35

Radioactive contaminants found in coal ash

A new study reveals high levels of radioactivity in coal ash from all three major US coal-producing basins, up to five times higher than normal soil. The presence of radioactive elements like radium isotopes and lead-210 poses significant environmental and health risks if not properly regulated.

SourceDuke University·JournalEnvironmental Science & Technology·DateSep 2, 2015

Only above-water microbes play a role in cave development

Research suggests that above-water microbes contribute to the development of hydrogen-sulfide-rich caves through aerobic respiration, producing sulfuric acid. In contrast, underwater microbes only partially burn hydrogen sulfide, creating pure sulfur as a byproduct that is not corrosive to limestone.

SourcePenn State·JournalChemical Geology·DateSep 2, 2015

Reversible Writing with Light

Scientists at the Weizmann Institute create a method for getting nanoparticles to self-assemble, focusing on the medium in which they're suspended. This approach enables reversibly writing information and has potential applications in rewritable paper, water decontamination, and controlled drug delivery.

SourceWeizmann Institute of Science·JournalNature Chemistry·DateSep 2, 2015

Taking apart termite mounds

Researchers at Harvard University discovered that termite mounds breathe once a day as temperature oscillations drive ventilation. The mounds' structure, with central chimneys and thin exterior walls, allows gases to exchange and maintain efficient airflow.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateSep 2, 2015

Best of ESC Congress 2015

ESC Congress 2015 saw a record-breaking attendance of 32,773 registrations, featuring 28 clinical Hot Line presentations, 18 Clinical Trial Updates, and 20 Registry studies. Key findings included the use of spironolactone for resistant hypertension and its positive implications for clinical practice.

Texas A&M team finds neuron responsible for alcoholism

A study published in the Journal of Neuroscience by Texas A&M Health Science Center researchers found that a specific type of brain cell plays a crucial role in addiction. The findings suggest that periodic consumption of alcohol alters the structure and function of these cells, leading to increased cravings and cycle of alcoholism.

Fire in the Amazon

A six-year controlled burn experiment in an Amazonian rainforest found that trees can survive initial fire disturbance but not repeated or coupled disturbances. The study highlights the potential for grassland incursion to fuel future burns and reduce forest carbon stocks by up to 90%.

Food insecurity linked to adolescent obesity, metabolic syndrome

A recent study published in the Journal of the American Osteopathic Association reveals a strong link between food insecurity and the development of metabolic diseases in children. The research found that adolescents from households with low to very low levels of food security were more likely to be overweight and have central obesity,...

SourceAmerican Osteopathic Association·JournalThe Journal of the American Osteopathic Association·DateSep 2, 2015

The Lancet Psychiatry: Long-term study links common psychiatric disorders with increased risk of violent reoffending in ex-prisoners

A long-term study published in The Lancet Psychiatry journal found that ex-prisoners with common psychiatric disorders such as bipolar disorder and alcohol abuse are more likely to commit violent crimes after release. The study estimated that up to a fifth of violent reoffending by former male prisoners can be attributed to diagnosed p...

SourceThe Lancet·JournalThe Lancet Psychiatry·DateSep 2, 2015

Making fuel from light

Scientists at Argonne National Laboratory have made breakthroughs in manipulating photosynthesis to create a robust and renewable energy source. By storing sunlight in chemical bonds, they can produce hydrogen, a clean-burning fuel that could power cars and households.

SourceDOE/Argonne National Laboratory·JournalChemical Communications·DateSep 2, 2015

Study shows how fracking documentary influenced public perception and political change

A study by University of Iowa sociologist Ion Bogdan Vasi found that local screenings of Gasland led to increased anti-fracking mobilizations and influenced policymakers to ban hydraulic fracturing. The documentary film reshaped public perception and sparked significant interest in the topic among the general public.

SourceAmerican Sociological Association·JournalAmerican Sociological Review·DateSep 2, 2015

Flu study, on hold, yields new vaccine technology

Researchers at the University of Wisconsin-Madison have developed a new method for making flu vaccines using cell culture, which could lead to faster and more efficient vaccine production. This technology could potentially replace traditional egg-based vaccine production methods, which are limited by avian influenza outbreaks.

SourceUniversity of Wisconsin-Madison·JournalNature Communications·DateSep 2, 2015

Blueberry extract could help fight gum disease and reduce antibiotic use

A recent study by American Chemical Society found that wild blueberry extract has antibacterial properties against Fusobacterium nucleatum, a key bacteria associated with periodontitis. The extract successfully inhibited the growth of F. nucleatum and its ability to form biofilms, blocking a molecular pathway involved in inflammation.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateSep 2, 2015

The power of film

A University of Iowa researcher found that local screenings of Gasland led to an increase in anti-fracking mobilizations and influenced local policymakers to ban hydraulic fracturing. The study used online searches, social media chatter, and mass media coverage to measure the impact of the documentary on public perception.

SourceUniversity of Iowa·JournalAmerican Sociological Review·DateSep 2, 2015