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Science News for June 8, 2017


Overriding the urge to sleep

Researchers at California Institute of Technology have identified a neural circuit in the brain that controls wakefulness. The discovery could lead to new treatments for insomnia and other sleep disturbances. The study found that stimulating these neurons with light can help overcome tiredness, while silencing them can induce sleep.

Male sexual behavior linked to elevated male sex hormone receptors in muscles of sex-changing fish

Researchers at Georgia State University have discovered a link between male sexual behavior and elevated male sex hormone receptors in the muscles of sex-changing fish. The study found that males express more androgen receptors in the supracarinalis muscle, which is associated with increased rates of courtship and aggressive displays.

SourceGeorgia State University·JournalPLOS ONE·DateJun 8, 2017

New software tool could help doctors diagnose genetic diseases

A new software tool called Mendel,MD can help doctors analyze patients' genetic data to diagnose diseases caused by mutations. Developed for easy use by physicians, the tool is freely available and has been validated using clinical cases and tests at multiple research centers.

SourcePLOS·JournalPLOS Computational Biology·DateJun 8, 2017

Developing fetuses react to face-like shapes from the womb

Researchers found that fetuses at 34 weeks gestation turn their heads to look at face-like images, indicating a possible instinctual preference for faces. This discovery suggests that babies' preference for faces begins in the womb and does not require learning or experience after birth.

SourceCell Press·JournalCurrent Biology·DateJun 8, 2017

How the brain recognizes what the eye sees

Researchers analyzed how neurons in V2 respond to natural scenes, discovering three principles: combining edges, cross-orientation suppression, and repeating patterns. This work provides insight into the brain's ability to recognize faces, cars, and other objects.

SourceSalk Institute·JournalNature Communications·DateJun 8, 2017

Sanitation access linked to children's growth and health

A new study found that sanitation access is crucial for children's growth and health, with households having access to toilets or latrines seeing improved stunting, anemia, and diarrhea rates. Increasing community-level sanitation access can also have a significant impact on child health.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateJun 8, 2017

Control of material crystallization by agitation

A team at Osaka University found that agitating amorphous materials at a certain frequency accelerates crystallization, indicating a new method for controlling the formation of crystalline materials. The study used colloidal systems to model atomic materials and identified a specific vibrational mode facilitating crystallization.

SourceOsaka University·JournalScientific Reports·DateJun 8, 2017

World's first success in asymmetric borylation of ketones

Researchers at Hokkaido University have successfully developed a method for the catalytic asymmetric borylation of ketones, a breakthrough expected to facilitate the development of new medicines and functional chemicals. The team has identified a suitable catalyst element called chiral NHC complex for efficient reaction with diboron.

SourceHokkaido University·JournalAngewandte Chemie International Edition·DateJun 8, 2017

Research targets PFOA threat to drinking water

Researchers have developed a novel material that rapidly removes perfluorooctanoic acid (PFOA) from water, achieving concentrations below 10 parts per trillion. The material, made from a networked polymer, has shown greater affinity for PFOA than activated carbon and can be regenerated multiple times.

SourceNorthwestern University·JournalJournal of the American Chemical Society·DateJun 8, 2017

The art market bubble has burst

The art market price index, compiled by Prof. Roman Kräussl, shows a significant decline in post-war and contemporary art prices, with a 21% drop in 2016. This confirms a burst of the market bubble, which had been growing since 2009.

SourceUniversity of Luxembourg·JournalReview of Financial Studies·DateJun 8, 2017

How plants prevent oxidative stress

Researchers discovered the P700 oxidation system in plants to suppress reactive oxygen species production, allowing safe photosynthesis. The system starts functioning when excess light energy is present, serving as a warning marker for oxidative stress.

SourceKobe University·JournalThe Plant Journal·DateJun 8, 2017

Research for an oil (palm) change

A new technique developed by James Cook University scientists helps oil palm growers predict crop yield, nitrous oxide emissions and nitrogen leaching. The research provides valuable information for on-farm decision making, enabling growers to make decisions that balance productivity and environmental sustainability.

SourceJames Cook University·JournalField Crops Research·DateJun 8, 2017

Study reveals sweetened drinks during pregnancy puts infants at higher risk for obesity

A recent Danish study found that maternal daily consumption of artificially-sweetened beverages during pregnancy was associated with a higher body mass index score and increased risk of overweight/obesity at 7 years. This study suggests that substituting SSBs with artifically sweetened beverages may increase offspring obesity risk.

SourceOxford University Press USA·JournalInternational Journal of Epidemiology·DateJun 8, 2017

Calculator estimates success of kidney transplants with particular donor-recipient pairs

Researchers developed a calculator estimating graft survival after kidney transplant from living donors, accounting for mismatches in age, sex, HLA, and body size. The tool is particularly useful for kidney paired donation, allowing candidates to compare estimated graft survival with different potential donors.

SourceAmerican Society of Nephrology·JournalClinical Journal of the American Society of Nephrology·DateJun 8, 2017

Autonomous machines edge towards greater independence

Researchers have developed a method for autonomous learning in self-taught systems, allowing them to evolve and adapt over time. This approach, which incorporates delayed dynamics and feedback loops, has been successfully applied to neural networks and phase oscillators, yielding robust performance with minimal external control.

SourceSpringer·JournalThe European Physical Journal B·DateJun 8, 2017

Not so elementary

A team of international physicists, including UC Santa Barbara postdoctoral scholar Manuel Franco Sevilla, reviewed results from three experiments that suggest lepton universality may need to be revised. The findings, published in Nature, indicate a higher-than-expected tau decay rate in all three experiments.

Does your name match your face?

A study published in Psychonomic Bulletin & Review found that people's names are associated with specific face shapes, influencing voting decisions. Candidates with congruent names received an average of 10 more percentage points in their elections than those with incongruent names.

SourceSpringer·JournalPsychonomic Bulletin & Review·DateJun 8, 2017

A fish of all flavors

A study by Osaka University reveals that a single heterodimer of two T1r members can detect a wide range of sweet and savory flavors in humans. The researchers found that the structure of the heterodimer is similar regardless of the amino acid bound, but with varying affinity for each ligand.

SourceOsaka University·JournalNature Communications·DateJun 8, 2017

Study examines adolescents' responses to racism in school

Adolescents' responses to verbal racism in school were influenced by age, ethnicity, and cross-group friendships. Younger and majority-ethnic adolescents showed more prosocial bystander responses, while older and minority-ethnic adolescents indicated aggressive or passive responses.

SourceWiley·JournalJournal of Community & Applied Social Psychology·DateJun 8, 2017

World first: Stem cell treatment for lethal STAT1 gene mutation -- shows 'disappointing' but promising results

Researchers conducted a study assessing stem cell transplantation for patients with a rare 'gain of function' STAT1 gene mutation. The treatment showed encouraging results, with five patients being completely cured and disease-free, but the overall success rate was disappointing at 40%. Experts propose adjusting treatment parameters, s...

SourceHiroshima University·JournalJournal of Allergy and Clinical Immunology·DateJun 8, 2017

From the somatic cell to the germ cell

Researchers identified multiple genes that enable somatic cells to switch to germline fate in plants. The discovery provides molecular evidence for the evolution of reproductive systems in ancient plants, showing how plants limit switching to create a single germ cell.

SourceUniversity of Freiburg·JournalScience·DateJun 8, 2017

Kidney graft success -- does age and sex matter?

A new study published in the Journal of the American Society of Nephrology found that young women have poorer transplant outcomes compared to young men, while women over 45 have similar or better outcomes. The research suggests personalized immunosuppression strategies based on age and sex could improve graft success.

SourceMcGill University Health Centre·JournalJournal of the American Society of Nephrology·DateJun 8, 2017

Human brain tunes into visual rhythms in sign language

A new study reveals that humans can entrain to the temporal structure of sign language, regardless of whether they are fluent or non-fluent signers. The researchers developed a novel metric to measure visual rhythms in sign language and found that brain waves locked into specific frequencies of sign language.

SourceUniversity of Chicago·JournalProceedings of the National Academy of Sciences·DateJun 8, 2017

ALMA finds ingredient of life around infant Sun-like stars

Astronomers using ALMA have found the complex organic molecule methyl isocyanate in the disk of a young Sun-like star, providing new insights into the formation of life. The discovery suggests that these protostars are well-suited for Earth-sized planets to form and may hold clues to understanding how life emerged on our planet.

SourceESO·JournalMonthly Notices of the Royal Astronomical Society·DateJun 8, 2017

Making vessels leaky on demand could aid drug delivery

Rice University scientists have discovered a way to selectively open gaps in blood vessel barriers, allowing large molecule drugs to reach targeted tissues. The technique uses magnets to manipulate nanoparticles and alter the endothelial cell's structure, creating temporary 'leakiness' that can be controlled.

SourceRice University·JournalNature Communications·DateJun 8, 2017

Improving adolescents' social and emotional lives must go beyond teaching them skills

Effective SEL programs focus on improving emotional environments, values, and mindsets rather than just teaching skills, according to UT Austin psychology assistant professor David Yeager. These approaches help teens find purpose in learning and communities, leading to improved academic performance and social-emotional well-being.

SourceUniversity of Texas at Austin·JournalThe Future of Children·DateJun 8, 2017

Scientific advances in thoracic oncology in 2016 highlighted by the IASLC

The IASLC published a comprehensive summary of the year's key developments in thoracic oncology, covering prevention, early detection, pathology, staging, surgery, adjuvant therapy, radiotherapy, and immunotherapy. The publication highlights significant progress in small cell lung cancer and malignant mesothelioma.

SourceInternational Association for the Study of Lung Cancer·JournalJournal of Thoracic Oncology·DateJun 8, 2017

Self-learning robot hands

The Famula project has created a system that learns to recognize everyday objects through trial and error, mimicking human learning. The robot's language capabilities are also being developed to improve its interactions with humans.

LA BioMed researcher honored for contributions to medicine

Dr. Jack Edwards, a leading researcher at LA BioMed, has been recognized with the Rhoda Benham Award for his continuous outstanding contributions to medical mycology. His work focuses on understanding fungal diseases, aiming to develop new anti-fungal agents and immunotherapies to prevent life-threatening infections.

New study shows setting stretch goals can undermine organizational performance

A new study published in Organization Science found that setting stretch goals can lead to lower risk-adjusted performance and higher variation in performance across organizations. The researchers discovered that about 80% of participants failed to reach their assigned stretch goals, often abandoning them for more manageable targets.

Synthetic nanochannels for iodide transport

Scientists at IBS create nanostructures that function as channels for iodide transport in cell membranes, offering a new approach to diagnose and treat iodide transport disorders. The newly developed synthetic ion channels, called porphyrin boxes 1A (PB-1A), selectively allow the passage of negatively-charged ions, such as iodides.

SourceInstitute for Basic Science·JournalJournal of the American Chemical Society·DateJun 8, 2017

Mind changing can be risky

Researchers found that leaders who change their moral minds are perceived as hypocritical and less effective, but framing the change as a result of a transformative experience can mitigate this perception. The study suggests that taking a moral stance without underlying beliefs can backfire if a leader needs to change their mind later.

SourceAmerican Psychological Association·JournalJournal of Personality and Social Psychology·DateJun 8, 2017

Brain imaging reveals neural roots of caring

A study using brain scans found that feelings of empathy involve distinct brain activity patterns, with empathic care overlapping with value and reward systems and empathic distress linked to mirroring systems. The researchers discovered consistent patterns across individuals, predicting emotions based on brain activity.

SourceCell Press·JournalNeuron·DateJun 8, 2017

Wayne State receives $3.05 million NIH award to improve diabetes care in youth

A Wayne State University research team will conduct a five-year trial to test an intervention on tablet computers that helps parents engage in effective parenting to assist their diabetic adolescents complete daily care. The study aims to improve health outcomes and metabolic control among African American youth with Type 1 diabetes.

Tiny glow sticks

Chinese researchers create microscale optical waveguides using lanthanide metal-organic frameworks, offering potential for low-loss light conduction and polarized emissions. The novel structures emit luminescence in different colors depending on the used lanthanide, making them suitable for color-tunable optical applications.

SourceWiley·JournalAngewandte Chemie International Edition·DateJun 8, 2017