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Science News for January 11, 2022


CHEOPS reveals a rugby ball-shaped exoplanet

The CHEOPS space telescope has detected the deformation of exoplanet WASP-103b, a rugby ball-shaped world with extreme tides. The planet's Love number indicates similarities with Jupiter's internal structure, suggesting it may be highly inflated due to heating from its star.

SourceUniversity of Bern·JournalAstronomy and Astrophysics·TypeObservational study·DateJan 11, 2022

New study finds neurons derived from stem cells predict psychosis and cognitive deficits in individuals with schizophrenia

A new study uses stem cells to predict schizophrenia symptoms, opening the door to personalized medicine. The researchers found that neurons derived from patients' own stem cells predicted psychosis and cognitive deficits with high accuracy.

SourceLieber Institute for Brain Development·JournalProceedings of the National Academy of Sciences·TypeRandomized controlled/clinical trial·DateJan 11, 2022

CU researchers survey physicians on experiences providing medical aid in dying

Physicians in Colorado are more willing than expected to provide medical aid in dying, with 81% open to discussing the topic and 88% willing to make referrals. However, 46% were unwilling to serve as consultants, highlighting the need for better understanding of the challenges physicians face in this practice.

SourceUniversity of Colorado Anschutz Medical Campus·JournalJournal of General Internal Medicine·TypeSurvey·DateJan 11, 2022

K-12 experience, population density among factors that support rural ‘brain gain’

Researchers found that college graduates between 34 and 43 years old are more likely to return to their hometowns if they had a strong attachment to their public K-12 schools. The study also revealed that rural communities with lower population densities and fewer postsecondary degree holders were more attractive to returning graduates.

SourceIowa State University·JournalRural Sociology·TypeData/statistical analysis·DateJan 11, 2022

Korea Maritime & Ocean University researchers champion LPG as a green alternative ship fuel

Researchers from Korea Maritime & Ocean University found that using LPG as a marine fuel can reduce annual fuel consumption by 7.5-10.4%, fuel cost by 8.8-25.9%, and carbon dioxide emissions by 10-14%. The study also highlights the potential for promoting LPG as an eco-friendly alternative to traditional fuels.

SourceNational Korea Maritime and Ocean University·JournalJournal of Cleaner Production·TypeMeta-analysis·DateJan 11, 2022

Brain-based method to determine impairment from cannabis intoxication is reported by researchers

Researchers at Massachusetts General Hospital have developed a portable brain imaging procedure using functional near-infrared spectroscopy (fNIRS) to detect acute impairment from THC intoxication. The technique shows promise in distinguishing between impairment and mild intoxication, with accuracy confirmed by machine learning models.

SourceMassachusetts General Hospital·JournalNeuropsychopharmacology·DateJan 11, 2022

How scientists designed the controllers for robot manipulators in the space station?

Researchers developed a recursive composite adaptive control method to improve the accuracy and dynamic performance of robot manipulators in the Chinese Space Station. The new controller reduces computational loads and achieves faster parameter convergence, making it suitable for high-degree-of-freedom robots.

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·DateJan 11, 2022

Smoking may increase risk of heart attack via enhanced platelet activity, new research suggests

A new study published in Circulation Research found that smoking can increase the risk of a heart attack by activating a gene that affects blood clotting. The researchers discovered that smoking causes changes to DNA methylation at specific sites, leading to increased platelet activity and an increased risk of clotting events.

SourceUniversity of Bristol·JournalCirculation Research·DateJan 11, 2022

New catalytic approach directly converts raw biomass into natural gas with low carbon footprint

A new catalytic approach directly converts solid biomass into natural gas with a low carbon footprint, achieving nearly complete conversion of various agricultural and forestry materials. This process reduces fossil energy depletion and greenhouse gas emissions by up to 26% and 34%, respectively.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalNature Communications·TypeCommentary/editorial·DateJan 11, 2022

Moffitt researchers discover mechanism controlling tertiary lymphoid structure formation in tumors

Researchers at Moffitt Cancer Center have identified the molecular and cellular mechanisms that control the formation of tertiary lymphoid structures within tumors. These structures contain immune cells and can promote anti-tumor activity when Tfh cells are introduced, leading to improved outcomes in patients with certain types of cancer.

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalImmunity·TypeExperimental study·DateJan 11, 2022

Jonsson Comprehensive Cancer Center researchers identify signaling mechanisms in pancreatic cancer cells that could provide treatment targets

Jonsson Comprehensive Cancer Center researchers have identified signaling mechanisms in pancreatic cancer cells that could be targeted for treatment. By inhibiting a specific protein, cancer cells' DNA can become damaged and induce programmed cell death, providing a potential new strategy for treating this aggressive form of cancer.

SourceUniversity of California - Los Angeles Health Sciences·JournalCell Reports·TypeExperimental study·DateJan 11, 2022

Penn Medicine researchers develop new method to increase effectiveness of nanomedicines

Researchers at Penn Medicine have discovered a new method to prevent the body's proteins from attacking treatment-carrying nanoparticles, allowing for more effective delivery of therapies. By coating nanoparticles with natural suppressors of complement activation, such as Factor I, the team has shown improved protection against immune ...

SourceUniversity of Pennsylvania School of Medicine·JournalAdvanced Materials·TypeExperimental study·DateJan 11, 2022

Terahertz radiation source: Compact and simple

A novel, simple, and extremely compact terahertz radiation source has been developed at TU Wien, enabling high intensities and small size. The technology uses resonant-tunnelling diodes and can be used in various applications such as material testing, airport security control, radio astronomy, and chemical sensors.

SourceVienna University of Technology·JournalApplied Physics Letters·TypeExperimental study·DateJan 11, 2022

Too much heavy metal stops stars producing

The ARC Centre of Excellence for All Sky Astrophysics in 3D has discovered that the youngest generation of stars will eventually stop contributing metals back to the universe. This change affects the composition of the galaxy over time, with around half of the carbon and all elements heavier than iron synthesized by stars like our Sun.

SourceARC Centre of Excellence for All Sky Astrophysics in 3D (ASTRO 3D)·JournalMonthly Notices of the Royal Astronomical Society·TypeComputational simulation/modeling·DateJan 11, 2022

Researchers find concerns for animals tied to same habitats

A team of researchers found that animals with strong site fidelity, which is returning to the same places to eat, travel, and raise their young, may not survive or reproduce as well in changing landscapes. This can lead to population declines, especially in species like mule deer affected by human development.

SourceUniversity of Wyoming·JournalFrontiers in Ecology and the Environment·TypeLiterature review·DateJan 11, 2022

Biomass burning increases low clouds over southeastern Asia

A recent study found that biomass burning aerosols enhance cloud formation in southeastern Asia through aerosol-radiation interactions, leading to significant climate effects. The researchers used a comprehensive approach combining model simulations with multiple data sources to investigate the role of wildfires in low-cloud formation.

SourceMax Planck Institute for Chemistry·JournalNature Communications·TypeObservational study·DateJan 11, 2022

NRG Oncology trial data concludes paclitaxel and carboplatin should be considered the standard of care as first-line treatment for women with uterine carcinosarcoma

The NRG Oncology GOG 0261 trial demonstrated that paclitaxel and carboplatin is a non-inferior alternative to paclitaxel and ifosfamide for treating women with uterine carcinosarcoma. This regimen offers improved progression-free survival and overall survival compared to the current standard of care.

SourceNRG Oncology·JournalJournal of Clinical Oncology·DateJan 11, 2022

It all comes down to the first electron

Researchers at ETH Zurich have discovered a single relationship explaining the massive efficiency differences in extracellular electron shuttles. The study found that the transfer of the first electron from the shuttle to iron oxide determines the iron reduction rate, shedding light on a critical step in microbial respiration.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJan 11, 2022

Study finds Rwandan genocide chemically modified the DNA of victims and victims’ offspring

A study by USF Genomics program found that prenatal exposure to the Rwandan genocide was associated with epigenetic modifications in genes linked to mental disorders. These 'chemical' changes can have a rapid response to trauma across generations, suggesting a possible link between historical trauma and modern-day mental health issues.

SourceUniversity of South Florida·JournalEpigenomics·TypeRandomized controlled/clinical trial·DateJan 11, 2022

Identification of one of the first multicellular algae thanks to its chlorophyll fossilized for 1 billion years

Researchers from the University of Liege have discovered a new methodology to identify phototrophic eukaryotes in fossils, revealing one of the first unambiguous algae. The discovery provides insights into the evolution of eukaryotic phototrophy during the Precambrian and the diversification of primary producers in early ecosystems.

SourceUniversity of Liège·JournalNature Communications·DateJan 11, 2022

Scientists expand CRISPR-Cas9 genetic inheritance control in mammals

Researchers have successfully developed CRISPR-Cas9 inheritance control in male mice by shifting the gene editing window to match the timing of meiosis. This achievement expands the potential for human disease research and environmental applications, offering benefits such as laboratory efficiency improvements and cost savings.

SourceUniversity of California - San Diego·JournalPLOS Biology·TypeExperimental study·DateJan 11, 2022

How much do students learn when they double the speed of their class videos?

A new UCLA study shows that students can learn and retain information quite well when watching lectures at speeds of up to double the normal speed. However, once they exceed this limit, comprehension begins to suffer. The researchers found that spending time saved by speeding up videos on additional studying activities enhances learning.

SourceUniversity of California - Los Angeles·JournalApplied Cognitive Psychology·DateJan 11, 2022

Unique Irish study sheds new light on long-term SARS-CoV-2 vaccine responses in older nursing home residents

A unique Irish study found that previous COVID-19 infection and age are associated with lower antibody levels six months after vaccination. The research highlights the importance of boosting vaccinations for vulnerable populations like nursing home residents.

SourceTrinity College Dublin·JournalJournal of the American Medical Directors Association·TypeExperimental study·DateJan 11, 2022

iDIRECT network framework developed at the University of Oklahoma could help scientists better understand biological systems

A new framework, iDIRECT, can effectively infer direct relationships in association networks, improving our understanding of complex systems. This approach has been successfully applied to gene regulatory networks in E. coli and microbial communities in response to climate warming.

SourceUniversity of Oklahoma·JournalProceedings of the National Academy of Sciences·DateJan 11, 2022

Faculty mentor training program strengthens university’s institutional climate

A pioneering program at UC San Diego Health Sciences has trained 23% of faculty between 2017-2020, improving mentoring quality and faculty satisfaction, especially among underrepresented groups. The program's success suggests a universally applicable model for medical schools to improve diversity and success.

SourceUniversity of California - San Diego·JournalJournal of Clinical and Translational Science·DateJan 11, 2022

The secret drivers of tree growth

Researchers found that fungal communities play a key role in tree growth, with some species increasing tree growth rates up to a tree-fold. The study suggests that using specific fungal communities can help improve forestry and potentially absorb more carbon from the atmosphere.

SourceETH Zurich·JournalThe ISME Journal·DateJan 11, 2022

Bioengineer awarded NSF CAREER grant to improve cardiovascular flow computer models using machine learning

A bioengineer at Northern Arizona University received a $507,642 NSF CAREER grant to improve cardiovascular flow computer models using machine learning. The project aims to develop software that synergistically integrates deep learning and traditional physics-based modeling to address fundamental issues in high-fidelity blood flow and ...

Sharing more than water

Researchers found parasite densities to be far higher around water sources than elsewhere in the landscape, with cattle and elephants being particularly affected. The study provides ecological insights into how watering holes impact ecosystem health and interactions between species.

SourceUniversity of California - Santa Barbara·JournalNature Communications·DateJan 11, 2022

New knowledge about the happiness hormone dopamine

Researchers at the University of Bergen have discovered a new understanding of dopamine's regulatory mechanisms, which could lead to breakthroughs in treating neurodegenerative diseases. The study found that dopamine can bind to an enzyme called tyrosine hydroxylase, inactivating it and controlling its own production.

SourceThe University of Bergen·JournalNature Communications·DateJan 11, 2022

Is more better? Amounts and frequency of milk replacer fed to calves under heat stress

Researchers found that increasing energy intake by feeding more milk replacer supports greater growth during summer. However, feeding frequency had no effect on growth during summer but improved growth during winter. The study suggests optimizing feeding strategies to maximize calf growth and welfare in hot environments.

SourceElsevier·JournalJournal of Dairy Science·TypeExperimental study·DateJan 11, 2022

Researchers reduce breast cancer metastasis in animal models by modifying tumor electrical properties

Researchers at Tufts University have found that manipulating voltage patterns in tumor cells can significantly reduce tumor cell invasion and metastasis in animal models. Using FDA-approved ion channel blockers, they were able to normalize cell voltages, decrease tumor growth, and limit the spread of cancer cells.

SourceTufts University·JournalEBioMedicine·TypeExperimental study·DateJan 11, 2022

Study: safe drinking water remains out of reach for many Californians

A new analysis reveals that approximately 1.3 million Californians, or nearly 3.5% of the population, rely on domestic wells for their water supply, while 370,000 more may be served by contaminated community water systems. Communities of color are disproportionately affected by drinking water contamination.

SourceUniversity of California - Berkeley·JournalAmerican Journal of Public Health·TypeData/statistical analysis·DateJan 11, 2022

Sustainable manufacturing

The collaboration seeks to co-develop an efficient CO2 electrolyzer that can produce ethylene, a widely used chemical building block. Yushan Yan at UD will focus on making polymer membrane materials chemical resistant and strong for long-term durability.

Ketamine and psychological therapy helped severe alcoholics abstain for longer in trial

A clinical trial found that people with severe alcohol disorder stayed off alcohol for longer when treated with low doses of ketamine combined with psychological therapy. The therapy showed promise in preventing relapse and improving liver function, with participants having lower depression rates after three months.

SourceUniversity of Exeter·JournalFrontiers in Psychiatry·TypeRandomized controlled/clinical trial·DateJan 11, 2022

A multifaceted statewide COVID-19 infection control program in massachusetts nursing homes reduced infection rates in the most vulnerable residents

A state-wide Massachusetts infection control program, implemented in 360 nursing homes, reduced COVID-19 infections among vulnerable residents, including those with dementia. Cohorting residents and proper adherence to infection control guidelines were key factors in this reduction.

Hidden order in windswept sand

An international team of geomorphologists and physicists has discovered a consistent number in the frequencies of shifting grains, enabling reliable classification of newly discovered sand ripples. This finding could help explain the formation of mysterious new sand waves on Mars and evaluate past climatic conditions.

SourceUniversität Leipzig·JournalNature Communications·TypeData/statistical analysis·DateJan 11, 2022