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Science News Archive 2022 - Page 66


Page 66 of 448

Flexible thermochromic fabrics enabling dynamic colored display

Researchers developed flexible thermochromic fibers that can change color and pattern in response to environmental signals. The fibers were used to create a dynamic colored display fabric with QR code, which was successfully recognized, enabling applications in social contact, information security, and wearable human-computer interaction.

SourceHigher Education Press·JournalFrontiers of Optoelectronics·TypeExperimental study·DateNov 3, 2022

Making extreme precipitation projections more reliable using observational constraint

A joint study by the Institute of Atmospheric Physics and the Met Office reduces projection uncertainty in extreme precipitation by 20-40% in mid-to-high latitudes. The emergent relationship between present-day precipitation variability and climate model projections provides a new constraint for more reliable projections.

Common path principle improves shape metrology of complex precision optics

A new common path interferometer combining Fizeau and Twyman-Green principles has been developed to measure complex precision optics with improved accuracy. The Tilted Wave Interferometer overcomes reference wave problems, enhancing flexibility and reducing measurement time.

Alzheimer's or Lewy body dementia? How patients draw can determine the type of dementia

A study published in the Journal of Alzheimer's Disease found that analyzing patients' drawing tests can help diagnose Alzheimer's disease (AD) and distinguish it from dementia with Lewy bodies (DLB). The researchers discovered that DLB patients showed differences in speed-, pressure-, and pause-related features, whereas AD patients sh...

SourceUniversity of Tsukuba·JournalJournal of Alzheimer’s Disease·DateNov 3, 2022

Illinois report says native fish overlooked as invaders in U.S. waters

A new review highlights the lack of understanding about non-game native transplant (NGNT) fish in the US, which can have significant impacts on ecosystems. Researchers urge anglers and aquarium hobbyists to take steps to prevent NGNT invasions, such as not releasing bait fish into different watersheds.

Polarized X-rays reveal shape, orientation of extremely hot matter around black hole

Researchers use polarized X-ray measurements to refine models of black holes swallowing matter. The new data from Cygnus X-1 reveals a pencil-shaped plasma outflow and supports the hypothesis that processes near the black hole launch jets. This insight improves understanding of gravity's effects on space-time around black holes.

SourceWashington University in St. Louis·JournalScience·TypeExperimental study·DateNov 3, 2022

Perturbing the Bernoulli shift map in binary systems

A recent study by Tokyo University of Science researchers provides theoretical foundations for effective parameter tuning in the Bernoulli shift map. They used modular arithmetic to determine optimal parameter values for preserving chaos, with implications for other chaotic maps like the tent and logistic maps.

SourceTokyo University of Science·JournalChaos Solitons & Fractals·TypeComputational simulation/modeling·DateNov 3, 2022

IceCube neutrinos give us first glimpse into the inner depths of an active galaxy

Researchers have found evidence of high-energy neutrino emission from NGC 1068, an active galaxy in the constellation Cetus. The detection was made at the National Science Foundation-supported IceCube Neutrino Observatory, which reported its first observation of a high-energy astrophysical neutrino source in 2018.

Having suffered trauma during childhood triples the risk of suffering a serious mental disorder in adulthood

A recent study analyzing over 93,000 cases reveals a direct link between childhood trauma and the risk of developing a mental disorder in adulthood. The study highlights the importance of treating psychological trauma in patients and investing in prevention programs to reduce the risk of suffering a mental disorder.

SourceIMIM (Hospital del Mar Medical Research Institute)·JournalEuropean Archives of Psychiatry and Clinical Neuroscience·DateNov 3, 2022

A major clinical trial shows how to reduce the risk of stomach bleeding occasionally caused by regular aspirin use

A major clinical trial found that a short course of antibiotics can significantly reduce the risk of stomach bleeding caused by regular aspirin use, potentially improving its safety. The study involved 30,166 patients taking aspirin and showed rapid protection from hospital admissions for ulcer bleeding.

SourceUniversity of Nottingham·JournalThe Lancet·TypeRandomized controlled/clinical trial·DateNov 3, 2022

Speaking your mind: patients' speech can reveal type of dementia

A study published in Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring found that analyzing patients' speech can distinguish between different types of dementia. The research team developed a machine learning model using speech features to identify Alzheimer's disease and Lewy body dementia.

SourceUniversity of Tsukuba·JournalAlzheimer s & Dementia Diagnosis Assessment & Disease Monitoring·DateNov 3, 2022

Cutting-edge combination shows promise in patients with chemotherapy-resistant urothelial cancer

A combination of pembrolizumab and nanoparticle-bound paclitaxel has shown a high response rate of 50% in patients with platinum-refractory or ineligible urothelial cancers. The treatment has also been associated with improved median duration of response and overall survival time, providing an urgently needed new treatment option.

SourceWolters Kluwer Health·JournalThe Journal of Urology·DateNov 3, 2022

In organizations, group dynamics influence individuals’ likelihood of blowing the whistle on wrongdoing

A new study at Carnegie Mellon University found that group cohesion reduces whistleblowing tendencies within an organization but increases them outside of the group. This challenges prevailing views on whistleblowing and highlights the importance of considering relational dynamics in organizational interventions.

SourceCarnegie Mellon University·JournalOrganization Science·DateNov 3, 2022

How much impact do boycotts and buycotts actually have on brand sales?

A study by Cornell University and Northwestern University found that boycotts have a limited impact on brand sales, while buycotts have a short-lived effect in increasing sales. The researchers analyzed sales data over time and by market, as well as social media activity, to determine the net effect of boycotts and buycotts on sales.

SourceInstitute for Operations Research and the Management Sciences·JournalMarketing Science·TypeObservational study·DateNov 3, 2022

How magnetism could help explain Earth’s formation

Researchers analyzed fluid dynamics and electrically conducting fluids to conclude the Earth must have been magnetized before or as a result of its formation. This discovery could help narrow down theories on the Earth-Moon system, with implications for future research.

SourceUniversity of Leeds·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateNov 2, 2022

Enhanced observations for better forecasting tropical cyclones over the South China sea

The campaign boosted confidence in forecasting similar events with simultaneous satellite, aircraft, and balloon-based observational data. The results showed positive impacts on track and intensity forecasts of TC Mulan, as well as improved rainfall forecasts along the South China coast.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateNov 2, 2022

Brain changes in autism are far more sweeping than previously known, UCLA-led study finds

A new UCLA-led study found comprehensive brain-wide changes in individuals with autism spectrum disorder, refining scientists' understanding of how the condition progresses. The study analyzed gene expression across 11 cortical regions, revealing strong evidence that RNA changes in the brain are likely the cause of ASD.

Revealed: oldest star clusters in the universe

A team of astronomers used the James Webb Telescope to identify five ancient globular clusters, potentially containing the first and oldest stars in the universe. The clusters were formed close to the Big Bang, offering insights into star formation and galaxy evolution.

SourceUniversity of Toronto·JournalThe Astrophysical Journal Letters·TypeObservational study·DateNov 2, 2022

How cells find the right partners

Researchers found that the Eya protein regulates cell contact behavior, allowing for self-organization of epithelial cells with nurse cells. This mechanism enables complex development processes, including egg chamber formation and sperm cell development, in Drosophila.

SourceUniversity of Freiburg·JournalNature Communications·DateNov 2, 2022

The exceptional case of a person who has survived 12 tumors opens up new avenues for early diagnosis and immunotherapy in cancer, say CNIO researchers

Researchers discover exceptional individual with 12 tumors, shedding light on early detection methods and immune system response. Single-cell analysis technology shows promise in identifying cells with tumor potential before symptoms appear.

SourceCentro Nacional de Investigaciones Oncológicas (CNIO)·JournalScience Advances·TypeCase study·DateNov 2, 2022

Nose swabs may distinguish babies with RSV needing longer intensive care

Researchers used nose swabs from children with RSV in the pediatric intensive care unit (PICU) to examine gene expression. They found that some children had greater damage to nasal cells, correlating to longer PICU stays. This discovery could lead to a diagnostic test to predict which infants will require a longer stay.

SourceAnn & Robert H. Lurie Children's Hospital of Chicago·JournalFrontiers in Immunology·DateNov 2, 2022

Flu vaccine lowers risk of stroke

Researchers at the University of Calgary found that vaccination against influenza significantly lowers the risk of stroke among adults. The study analyzed health records of over four million Albertans and showed that the risk of stroke was reduced in all age groups, not just those at high risk.

SourceUniversity of Calgary·JournalThe Lancet Public Health·TypeObservational study·DateNov 2, 2022

Neuroscientific evidence induces study participants to recommend longer sentences for convicted criminals if they think prison is for rehabilitation or public protection, but shorter sentences if prison is considered punishment

Study participants recommend longer sentences for rehabilitation or public protection, but shorter sentences if punishment is the primary focus. The findings highlight the importance of considering the underlying motivations behind incarceration in sentencing decisions.

SourcePLOS·JournalPLOS ONE·DateNov 2, 2022

DNA 'nanotransporters' to treat cancer

Researchers have designed DNA-based transporters that can deliver precise concentrations of drugs, potentially improving cancer treatment. These nanotransporters can also be programmed to prolong the effect of a drug and minimize its dosage, reducing side effects.

SourceUniversity of Montreal·JournalNature Communications·TypeExperimental study·DateNov 2, 2022

Many middle-aged adults wary of taking part in studies of dementia prevention drugs

A new study found that only 12% of middle-aged adults are willing to participate in dementia prevention drug trials, citing concerns over the risks involved. The study suggests prioritizing those with a family history or perceived personal risk for dementia and communicating about trial safety could increase participation.

SourceMichigan Medicine - University of Michigan·JournalThe Journal of Prevention of Alzheimer s Disease·TypeSurvey·DateNov 2, 2022

NIH grant funds HIV research

Researchers at the University of Cincinnati are awarded a $3.5 million NIH grant to examine how alcohol use alone or in combination with fentanyl affects HIV medications, including PrEP medication. The study aims to determine metabolite signatures and pharmacological biomarkers of PrEP in HIV-negative populations.