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Science News Archive 2022 - Page 97


Page 97 of 448

New insights on the genetic underpinnings of the vocal tract

A study using 3D MRI in 632 monozygotic and dizygotic twins found that genetic and environmental factors interact to shape the vocal tract, with some structures having low heritability. The results provide new evidence on the relative contributions of genetics and environment to anatomical differences among people.

SourceUniversity of Barcelona·JournalHuman Genetics·TypeRandomized controlled/clinical trial·DateOct 11, 2022

Medical history may help predict autism in young children, researchers find

A new study developed machine learning models to assess connections among hundreds of clinical variables and predict the likelihood of autism spectrum disorder in young children. The models used de-identified insurance claim data to identify risk factors and quantify their association with autism. This approach has promising potential ...

SourcePenn State·JournalBMJ Health & Care Informatics·TypeData/statistical analysis·DateOct 11, 2022

Researchers discover new multicellular bacteria species

Researchers have isolated a novel bacterial species, HS-3, that displays complex multicellular behavior and a reversible two-phase life cycle. The discovery reveals a previously unknown mechanism for the emergence of multicellularity in bacteria, suggesting that environmental factors played a crucial role.

SourceeLife·JournaleLife·DateOct 11, 2022

Topological materials become switchable

Researchers have successfully switched on and off topological states in a material, exploiting the interaction of electrons to manipulate their behavior. The discovery opens up new possibilities for technical applications, including quantum computers and sensor technology.

SourceVienna University of Technology·JournalNature Communications·TypeExperimental study·DateOct 11, 2022

Tracking down satiety mechanisms in the stomach

Researchers at Leibniz-Institut für Lebensmittel-Systembiologie an der TU München discovered that casein digestion produces peptides with a satiating effect, stimulating gastric acid secretion via bitter receptors. This mechanism may help regulate food intake and maintain a healthy body weight.

SourceLeibniz-Institut für Lebensmittel-Systembiologie an der TU München·JournalJournal of Agricultural and Food Chemistry·TypeExperimental study·DateOct 11, 2022

AI that can learn patterns of human language

Researchers from McGill University and MIT developed an AI system that can learn the rules and patterns of human languages on its own. The model automatically generates higher-level language patterns that can be applied to different languages, achieving better results.

SourceMcGill University·JournalNature Communications·TypeComputational simulation/modeling·DateOct 11, 2022

STTR Award to LSU Health New Orleans spin-out company to develop new class of anticancer drugs for glioblastoma

WayPath Pharma has been awarded a $225,000 Phase I Small Business Technology Transfer (STTR) award to develop new metabolic drugs targeting tumor stem cells and crossing the blood-brain barrier. The funding aims to advance treatment options for glioblastoma, a highly aggressive brain cancer with limited treatment options.

Surface enhanced Raman scattering monitoring tumor photodynamic therapy

Scientists developed a new method using surface-enhanced Raman scattering (SERS) to monitor the effects of photodynamic therapy on tumor cells. The method, which involves Au@CDs cascade nanozymes, enables real-time monitoring of reactive oxygen species (ROS) levels in the tumor microenvironment.

Not just an Arkansas thing: Study shows that one-party monopolies dominate state politics

A new study by University of Arkansas professors Janine Parry and Andrew Dowdle documents the resurgence of one-party monopolies in American states. Most states have heavily favored one of the two major parties for at least a century, with some experiencing dramatic shifts in party affiliation over time.

SourceUniversity of Arkansas·JournalState Politics & Policy Quarterly·TypeData/statistical analysis·DateOct 11, 2022

How genetics influences our body weight beyond the genes

Researchers have identified microRNA-7 as a non-classic genetic risk factor for hereditary obesity. The molecule affects energy balance and appetite regulation in humans and mice, highlighting the need to examine non-genetic factors in gene-based studies. This discovery may lead to new therapeutic approaches for treating obesity.

SourceETH Zurich·JournalNature Communications·TypeExperimental study·DateOct 11, 2022

Research on how cells respond to stimuli offers insight into disease mechanisms, treatment

Scientists discover that temporal signals play a crucial role in regulating multicellular information networks, allowing cells to sense and respond to environmental changes. The study's findings offer insight into how coordinated responses among cells enable multicellular organisms to survive in complex surroundings.

SourceOregon State University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 11, 2022

It’s raining harder in the US

A new study by Northwestern University researchers found that precipitation intensity has increased across the US, particularly in the East, South, and Midwest. The study analyzed historical precipitation data from two time periods (1951-1980 and 1991-2020) and discovered a systematic shift towards more intense rainfall events.

SourceNorthwestern University·JournalGeophysical Research Letters·TypeComputational simulation/modeling·DateOct 11, 2022

Maps of the past may shed light on our climate future

Researchers created global temperature maps of Earth during the Paleocene-Eocene Thermal Maximum, a time period similar to our own future under climate change. The study found that the climate was more sensitive to carbon dioxide increases than previously thought, with sensitivity between 5.7 to 7.4 degrees Celsius per doubling.

SourceUniversity of Arizona·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateOct 11, 2022

Clinical psychologists and their patients need new ways to understand and confront the fear of losing control, says Concordia researcher

Clinical psychologists need new ways to understand and confront the fear of losing control, which is an understudied construct. Adam Radomsky's research suggests that a deeper understanding of what leads to a client's choices can help therapists make better ones in the future.

SourceConcordia University·JournalJournal of Behavior Therapy and Experimental Psychiatry·TypeCommentary/editorial·DateOct 11, 2022

Color patterns drive fish community structure in coral reefs, finds new study from Japan

A recent study from Japan reveals that color patterns on fish influence their aggressive behavior and determine the color patterns of cohabitating fish. The study found that anemonefish with white bars on an orange or red background exhibit aggressive behavior towards other fish with similar color patterns.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalProceedings of the Royal Society B Biological Sciences·TypeExperimental study·DateOct 11, 2022

Study finds no adverse effects of early fluoride exposure on childhood development

A nationwide Australian study found no link between early exposure to fluoridated water and altered emotional, behavioral development, or executive functioning in adolescence. The study used data from Australia's National Child Oral Health Study and followed children aged 5-10 years for 7-8 years.

Paused at the right moment

A team of scientists has identified a key protein involved in regulating the second arrest in meiosis II, allowing the matured egg to await fertilization. Cyclin B3 keeps the availability of Emi2 below a critical threshold during the first maturation division, preventing premature arrest.

SourceUniversity of Konstanz·JournalDevelopmental Cell·DateOct 11, 2022

Molecular-motor specialists deepen our understanding of a rotary ion pump of the cell

A team of scientists has directly visualized the rotary motion of a bacterial cell protein, resolving a long-standing structural symmetry mismatch. The study found that the coupling between the two motors is rigid, requiring additional pauses during rotation to resolve the mismatch.

SourceNational Institutes of Natural Sciences·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 11, 2022

Military law enforcement key to convincing service members to safely store firearms

A Rutgers study suggests that messages on safe firearm storage delivered by military law enforcement are more effective in persuading service members to adopt safe storage practices. The study found that participants responded positively to visual messages voiced by security forces, particularly with respect to using locking devices.

SourceRutgers University·JournalJAMA Network Open·TypeExperimental study·DateOct 11, 2022

Discovery of unknown habitats in the carboniferous flora in the Pyrenees

A study reveals that the Sigillaria brardii species, a fossil plant typical of peatlands, colonized new areas in the riverbeds of the Variscan mountains. The discovery expands knowledge about forest ecosystems in the late Carboniferous period and sheds light on the impact of global climate change on plant distribution.

SourceUniversity of Barcelona·JournalPalaeogeography Palaeoclimatology Palaeoecology·TypeObservational study·DateOct 11, 2022

Blood levels of ‘free range’ DNA may signal early detection of dementia and frailty

Researchers found that higher levels of cell-free DNA in the blood are associated with increased cognitive decline and worsening frailty over an eight-year period. The study suggests that a simple blood test could detect risk of Alzheimer's disease and other forms of cognitive decline, potentially leading to early interventions.

SourceJohns Hopkins Medicine·JournalJournal of Alzheimer’s Disease·DateOct 11, 2022

Insect-slapping flower stamens maximize pollination

A new study found that mobile stamens on flowers help reduce the time insects linger on flowers, decreasing nectar consumption while increasing pollen transport efficiency. This allows for more efficient pollination, ultimately benefiting plant reproductive success.

SourceeLife·JournaleLife·DateOct 11, 2022

Study shows shaker channel mutation differs structurally from human potassium channels

A recent study led by Dr. Luis Cuello and Alain J. Labro found that a known Shaker channel mutation differs structurally from its human counterparts, with implications for drug development and ion transport mechanisms. The research reveals a unique conformation of the W434F mutant that is distinct from wild-type channels.

SourceTexas Tech University Health Sciences Center·JournalScience Advances·TypeObservational study·DateOct 11, 2022

Zinc could treat a rare genetic disorder

Researchers discovered that zinc can restore the functioning of proteins affected by mutations in the GNAO1 gene, leading to severe mental and motor disabilities. By reactivating hydrolysis, zinc enables neurons to communicate correctly with their environment.

SourceUniversité de Genève·JournalScience Advances·TypeNews article·DateOct 10, 2022

Through thick and thin: X-rays track the behavior of soft materials

Scientists explore the dynamics of soft materials like toothpaste and hair gel using X-ray photon correlation spectroscopy (XPCS). The technique reveals microscopic dynamics and helps understand properties like viscosity and elasticity. Insights gained can aid in designing consumer products, nanotechnologies, and drug delivery systems.

SourceDOE/Argonne National Laboratory·JournalProceedings of the National Academy of Sciences·DateOct 10, 2022