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Science News Archive January 2019 - Page 27


Page 27 of 37

Curricular changes show success by fourth year

A new science curriculum, Integrating Biology with Inquiry (IBIS), has been shown to increase student buy-in and satisfaction over time, while maintaining learning gains. The four-year study found that students recognized the connection between their teaching methods and their learning outcomes.

SourceSUNY Geneseo·JournalPLOS ONE·DateJan 11, 2019

The algae's third eye

Researchers have discovered a new light sensor in green algae that inhibits cGMP production, reducing its concentration. This finding is significant as it mirrors the human eye's response to light, and could lead to breakthroughs in optogenetics.

SourceUniversity of Würzburg·JournalBMC Biology·DateJan 11, 2019

Making ammonia 'greener'

Researchers Julie Renner and Mohan Sankaran have developed an electrolytic process with a plasma to create ammonia from nitrogen and water at low temperature and pressure. This process could lead to smaller, more localized ammonia plants powered by alternative energy.

SourceCase Western Reserve University·JournalScience Advances·DateJan 11, 2019

Being HIV positive and staying on antiretroviral therapy in Africa: A systematic review

The systematic review identified nine themes impacting on adherence and treatment seeking, including external issues such as poverty and stigma. Long-term engagement requires adaptation and incorporation of ART into daily life, facilitated by factors like self-efficacy and emotional support. The review aims to inform service delivery a...

Menstrual hygiene needs unmet for low-income women

A study by Saint Louis University's College for Public Health and Social Justice found that nearly two-thirds of low-income women cannot afford menstrual hygiene supplies like pads or tampons, with 46% unable to buy both food and period-related products. The researchers advocate for broader education and policy shifts surrounding menst...

SourceSaint Louis University·JournalObstetrics and Gynecology·DateJan 11, 2019

Parasites from patients with cerebral malaria stick preferentially in their brains

Researchers found that infected red blood cells from cerebral malaria patients bind more strongly to brain-derived cells than those from uncomplicated malaria patients. This suggests that specific PfEMP1 proteins on the infected red blood cells allow for efficient binding to brain vessels, a key feature of cerebral malaria.

SourceLiverpool School of Tropical Medicine·JournalEMBO Molecular Medicine·DateJan 11, 2019

Racial disparities in asthma related to health care access, environmental factors

A recent study published in the Journal of Allergy and Clinical Immunology analyzed data from the National Heart Lung and Blood Institute's Severe Asthma Research Program. The research found that African American patients are more likely to experience emergency hospital visits for asthma and have poorer asthma outcomes due to socioecon...

SourceEmory Health Sciences·JournalJournal of Allergy and Clinical Immunology·DateJan 11, 2019

Mobile, instant diagnosis of viruses

A new high-throughput sequencing technique enables quick diagnosis of viruses like Ebola and Zika in the field, avoiding sample transfer. The technology has been validated in plant virology, paving the way for real-time detection of chronic or emerging plant viruses.

SourceCirad·JournalScientific Reports·DateJan 10, 2019

Chemical synthesis of nanotubes

Researchers at the University of Tokyo successfully synthesized a phenine nanotube with intentional periodic defects, which imbue it with semiconductor characters. The discovery uses a novel process starting with benzene and platinum atoms to create a controlled defect structure.

SourceUniversity of Tokyo·JournalScience·DateJan 10, 2019

Turbocharger for the cell machinery

Scientists at the University of Bern have identified a unique mechanism in trypanosomes where non-coding RNA molecules stimulate ribosome activity, accelerating protein production during stress. This 'kick start' helps the cell recover quickly from nutrient scarcity or environmental challenges.

SourceUniversity of Bern·JournalNature Communications·DateJan 10, 2019

The pressure's off

Scientists have successfully mapped the active-state structure of the angiotensin II type 1 receptor, a critical drug target for regulating blood pressure and kidney function. The study provides insights into how this receptor activates and offers clues for developing new medications that activate rather than block the receptor.

SourceHarvard Medical School·JournalCell·DateJan 10, 2019

Neuroimaging shows social exclusion spurs extremism in those vulnerable to radicalization

A study using neuroimaging found that social exclusion strengthens willingness to defend non-sacred values, making them more radicalized. The neural activity associated with sacred values was also increased, suggesting a process of sacralization. These findings have implications for understanding and addressing extremism.

SourceUniversitat Autonoma de Barcelona·JournalFrontiers in Psychology·DateJan 10, 2019

Solving the ancient mysteries of Easter Island

Researchers used quantitative spatial modeling to explore the relationship between ahu construction locations and subsistence resources on Rapa Nui. The study found that ahu locations are consistently linked to proximity to freshwater sources, suggesting a critical role for water availability in ancient island society.

SourceBinghamton University·JournalPLOS ONE·DateJan 10, 2019

Uncovering more options in cancer immunotherapy

Researchers at Emory University have developed a high-throughput screening platform to identify small molecules that can enhance the ability of human immune cells to kill cancer cells. The platform, called HTiP, has identified compounds such as birinapant, which has shown strong evidence for its relevance as an immune enhancer.

SourceEmory Health Sciences·JournalCell Chemical Biology·DateJan 10, 2019

Researchers map previously unknown disease in children

A team of researchers has discovered a previously unknown disease that causes children to suffer from epileptic seizures, loss of magnesium in urine, and reduced intelligence. The disease is linked to a mutation in the sodium-potassium pump's Alpha-1 form, affecting both kidneys and the brain.

SourceAarhus University·JournalAmerican Journal of Human Genetics·DateJan 10, 2019

Phat on potential, lipidomics is gaining weight

A new generation of chemists and biochemists is advancing lipid research with the help of a newly established database. The LIPID MAPS database, developed by UC San Diego researchers, provides a gold standard classification system for lipids, enabling better study and diagnosis of acute and chronic conditions such as diabetes and cancer.

SourceBabraham Institute·JournalScience Signaling·DateJan 10, 2019

Pharmacists could dramatically reduce ER visits

A study found that nearly one-third of non-urgent ED visits in Ontario can be managed by pharmacists with an expanded scope of practice, reducing crowdedness and free up resources for more acute cases. The most frequent ED cases that could be managed include skin-related concerns and other minor conditions.

SourceUniversity of Waterloo·JournalResearch in Social and Administrative Pharmacy·DateJan 10, 2019