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Science News for November 24, 2015


Lactate for brain energy

Researchers from the University of Zurich have confirmed the existence of a concentration gradient of lactate between astrocytes and neurons in the intact mouse brain. The study provides new evidence for an exchange of lactate between different brain cells, supporting a 20-year-old hypothesis on brain energy metabolism.

SourceUniversity of Zurich·JournalCell Metabolism·DateNov 24, 2015

People who rely on their intuition are, at times, less likely to cheat

A study by University of Missouri graduate student Sarah Ward found that people who trust their gut feelings are less likely to cheat after considering past immoral behavior. Participants in the experiment were asked to imagine acting immorally and then complete an unsolvable IQ test, with results showing that up to 23% cheated. The re...

SourceUniversity of Missouri-Columbia·JournalPersonality and Individual Differences·DateNov 24, 2015

Algae could be a new green power source

Concordia University researchers have created a technology to harness the electrical energy from plants using blue-green algae. The invention utilizes electron transfer chains in photosynthesis and respiration to produce electricity. This scalable technology could lead to cheaper ways of generating carbon-free energy.

SourceConcordia University·JournalTECHNOLOGY·DateNov 24, 2015

Cataract surgery lessens patients' dizziness

After routine cataract surgery, older people experience significantly less dizziness due to improved vision. However, wearing multifocal glasses after surgery may negate this benefit, particularly for those with frailty or frequent spectacle changes.

SourceWiley·JournalOphthalmic and Physiological Optics·DateNov 24, 2015

Coming out of their evolutionary shells

A comprehensive genomic study of turtle shells has identified unique adaptations in genes that control hard cutaneous layers, dating back to the evolution of claws and feathers. The study also reveals a shared genetic organization between turtles and humans, highlighting the common ancestry of these defense mechanisms.

Cheesy products

Researchers from the University of Veterinary Medicine, Vienna tested over 100 raw milk cheeses purchased online and found that pathogenic bacteria like Listeria monocytogenes were present in two samples. Furthermore, more than half of the products lacked proper cooling, leading to increased bacterial growth during transport.

A sticky breakthrough

Researchers at UC Santa Barbara have designed a synthetic material that combines the key functionalities of interfacial mussel foot proteins, creating a single, low-molecular-weight, one-component adhesive. This breakthrough technology demonstrates record-high wet adhesion up to 10 times more effective than previous materials, with app...

SourceUniversity of California - Santa Barbara·JournalNature Communications·DateNov 24, 2015

New open-access data on paleofloods

Researchers have developed a new approach to recover flood frequency and magnitude data from temperate lakes, providing new sources of paleohydrological information. The study uses sediment dynamics to establish relationships between river discharge and deposit preservation, helping model and mitigate future flood risk.

SourceGeological Society of America·JournalGeology·DateNov 24, 2015

Rice wins $2.4 million to study many-antenna wireless

The research aims to investigate the feasibility of using many-antenna base stations to serve multiple users simultaneously, addressing scalability and interference issues. By leveraging ArgosNet, a custom-built experimental test bed, the team will advance MIMO technology to meet the 1,000x data challenge in 5G networks.

Inkjet hologram printing now possible

Researchers at ITMO University have developed a method for producing vivid holographic images using an ordinary inkjet printer. The new technique uses colorless ink made of nanocrystalline titania, which can be deposited on special microembossed paper to create unique patterned images.

SourceITMO University·JournalAdvanced Functional Materials·DateNov 24, 2015

Safety last?

A study by Cornell researchers found that consumers tend to ignore food safety risks if they conflict with their preferred products, rather than changing their behavior. The study showed that risk information alone is not enough to get consumers to alter their behavior.

SourceCornell Food & Brand Lab·JournalCanadian Journal of Agricultural Economics/Revue canadienne d agroeconomie·DateNov 24, 2015

The corn snake genome sequenced for the first time

The corn snake genome has been sequenced for the first time, providing valuable insights into reptile evolution and genetic diversity. The study aims to understand how snakes lost their limbs and developed various skin colorations, shedding light on the evolutionary processes that shaped these animals.

SourceUniversité de Genève·JournalScientific Reports·DateNov 24, 2015

Stretch the new flex for programmable rubber keyboard

Scientists at the University of Auckland have created a soft, flexible, and stretchable keyboard using dielectric elastomers. The keyboard can flex and stretch, recovering from drops and impacts, making it ideal for various applications such as gaming and motion capture.

SourceIOP Publishing·JournalSmart Materials and Structures·DateNov 24, 2015

Volcanic rocks hold clues to Earth's interior

Researchers at Arizona State University propose a model of mantle dynamics involving plumes that transport chemically distinct material to the surface, explaining variability in ocean island basalts. This study provides insights into Earth's interior composition and evolution, as well as potential links to habitable planet formation.

SourceArizona State University·JournalNature Communications·DateNov 24, 2015

Umbilical cells help eye's neurons connect

Researchers at Duke University have discovered that umbilical cord tissue-derived cells produce molecules that promote the growth, connection, and survival of retinal neurons. The study identifies thrombospondins as key players in this process, with potential therapeutic applications for degenerative eye diseases.

Use of antivirals in retrovirus-infected cats

The article reviews the use of antivirals in managing retrovirus-infected cats, with a focus on feline immunodeficiency virus (FIV) and feline leukaemia virus (FeLV). Best practice recommendations are presented for treatment regimens that may include zidovudine, plerixafor, or feline interferon omega.

SourceSAGE·JournalJournal of Feline Medicine and Surgery·DateNov 24, 2015

Earth's magnetic field is not about to flip

New measurements suggest the Earth's magnetic field is trending back to its long-term average intensity, contrary to predictions of a potential flip. The research uses advanced analysis techniques to re-evaluate paleointensity data, finding a 60% decrease in the field's strength over the past 5 million years.

SourceColumbia Climate School·JournalProceedings of the National Academy of Sciences·DateNov 24, 2015

Study finds higher risks for babies born at the weekend

Babies born in English NHS hospitals at the weekend have a higher risk of death within seven days and increased rates of other complications. Researchers estimated around 770 newborn deaths and 470 maternal infections per year above expected levels if performance was consistent across different days of the week.

SourceBMJ Group·JournalThe BMJ·DateNov 24, 2015

The silence of the genes

A team of scientists has identified a key segment of DNA involved in the genomic imprinting process, which regulates gene expression based on an individual's parental origin. This discovery provides new insights into the mechanisms underlying imprinting disorders and may lead to breakthroughs in understanding genetic diseases.

SourceUniversity of Tsukuba·JournalDevelopment·DateNov 24, 2015

Investigational drug may prevent life-threatening muscle loss in advanced cancers

A preclinical study finds that AR-42, an HDAC inhibitor, preserves muscle health and function while stopping life-threatening muscle wasting associated with advanced cancers. The experimental agent was shown to have a strong protective effect against tumor-associated muscle wasting in two preclinical models.

SourceOhio State University Wexner Medical Center·JournalJNCI Journal of the National Cancer Institute·DateNov 24, 2015

Scientists identify promising new melanoma drug

Scientists at Sanford Burnham Prebys Medical Discovery Institute have identified a promising new melanoma drug, SBI-756. The compound targets the translation initiation complex and has been shown to inhibit melanoma cell growth. SBI-756 may offer a significant advantage in overcoming tumor resistance.

SourceSanford Burnham Prebys·JournalCancer Research·DateNov 24, 2015

Neurological underpinnings of schizophrenia just as complex as the disorder itself

A new study maps specific schizophrenia symptoms to distinct brain circuits, revealing novel connections between cognitive, emotional, and intellectual symptoms. The findings have important implications for diagnosis and treatment, suggesting that brain scans could help identify individual patients and track progress during therapy.

SourceUniversity of North Carolina Health Care·JournalMolecular Neuropsychiatry·DateNov 24, 2015

New treatment potential for heart attack sufferers

A study published in International Journal of Cardiology found that mildly elevated levels of bilirubin, a bile pigment, can reduce damage and improve heart function during recovery from a heart attack. Higher levels of bilirubin have also been shown to protect the circulation from oxidative damage.

SourceGriffith University·JournalInternational Journal of Cardiology·DateNov 24, 2015

Chemical design made easier

Rice University scientists have developed a metal-free process to synthesize dozens of organocatalysts, which promise to speed up the making of novel chemicals, including drugs. The new tools eliminate the need for transition metals and simplify chemical processes.

SourceRice University·JournalAngewandte Chemie International Edition·DateNov 24, 2015

Harnessing a peptide holds promise for increasing crop yields without more fertilizer

Researchers at UMass Amherst have identified a key molecule in nitrogen-fixing bacteria that may hold promise for improving crop yields without increasing fertilizer use. The discovery of the 'double agent' peptide could be a key factor in future efforts to improve legume crops and promote sustainable farming practices.

SourceUniversity of Massachusetts Amherst·JournalProceedings of the National Academy of Sciences·DateNov 24, 2015

Mental health risk for new dads

Researchers found anxiety before and after a child arrives is just as prevalent as depression, affecting around one in ten men and half the rate for women. Mental health expert Dr. Liana Leach highlighted the importance of early intervention to reduce symptoms and duration.

SourceAustralian National University·JournalJournal of Affective Disorders·DateNov 24, 2015

Complex humor is no laughing matter

Research finds that cognitive constraints on mentalizing limit joke complexity to maintain humor; two-character jokes with up to five levels of intentionality are most effective. Professional comedians must balance cleverness with audience comprehension.

SourceSpringer·JournalHuman Nature·DateNov 24, 2015

Can a bonobo keep the beat?

A female bonobo named Kuni was found to have a spontaneous drumming tempo of 270 beats per minute, faster than observed in human children. She synchronized her drumming with the human drummer on 54% of trials, with greater success near her preferred tempo.

SourceAmerican Psychological Association·JournalJournal of Comparative Psychology·DateNov 24, 2015