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Science News Archive 2022 - Page 327


Page 327 of 448

Are strokes a social justice issue? A new study suggests they could be

A new study published in the Journal of the American Medical Association found that non-white Americans and those with lower socioeconomic status are more likely to have severe strokes, long-term disability, and shorter life expectancy compared to their white counterparts. The study suggests that hospitals may be disincentivized to tre...

SourceNorthern Arizona University·JournalJournal of the American Medical Association·DateApr 5, 2022

Effective mRNA protection by poly(l-ornithine) synergizes with endosomal escape functionality of a charge-conversion polymer toward maximizing mRNA introduction efficiency

Researchers have developed a novel nanocarrier system that synergizes poly(l-ornithine) for mRNA protection with charge-conversion polymer for endosomal escape. This innovation enhances protein expression efficiency by approximately 80-fold, outperforming traditional PLL-based systems.

SourceInnovation Center of NanoMedicine·JournalMacromolecular Rapid Communications·TypeExperimental study·DateApr 5, 2022

With a whiff ‘e-nose’ can sense fine whisky

A new e-nose prototype, NOS.E, can distinguish between six whiskies by brand names, regions, and styles in under four minutes, with 100% accuracy for region detection and 96.15% for brand name identification. The technology has applications beyond whisky, including counterfeiting detection in perfume and wine.

SourceUniversity of Technology Sydney·JournalIEEE Sensors Journal·TypeExperimental study·DateApr 5, 2022

BU study: racial disparities in child exposure to gun violence worsened

A new study found that non-White children experienced greater exposure to neighborhood firearm violence before the pandemic and saw an increase in disparities during COVID. The study quantified racial disparities in childhood exposure to gun violence with data from every US neighborhood.

SourceBoston University School of Public Health·JournalAmerican Journal of Preventive Medicine·TypeData/statistical analysis·DateApr 5, 2022

Chatbots deployed in response to COVID-19 pandemic

Researchers analyzed 61 COVID-specific chatbots in 30 countries, finding common uses such as risk assessment, symptom data collection, and appointment scheduling. They also discovered that anonymity of user interactions varies across cultures, affecting the effectiveness of follow-up services.

SourceUniversity of Georgia·JournalJournal of the American Medical Informatics Association·DateApr 5, 2022

Engineers pave way for next-gen deep ultraviolet lasers

Researchers at Cornell University have developed a high-quality crystal of aluminum nitride and created an optical cavity to trap emitted light, enabling the production of a deep-ultraviolet laser with exceptional precision. The breakthrough has significant implications for various applications, including sterilization, sensing, and ph...

SourceCornell University·JournalAIP Advances·DateApr 4, 2022

How deforestation is triggering an irreversible transition in amazon forests?

A new study finds that Amazon deforestation causes a substantial reduction in evapotranspiration, leading to drier lower atmosphere and severe atmospheric desiccation. The study suggests an emerging transition in the Amazon hydrological cycle, but also highlights the potential for forest conservation to prevent ecosystem collapse.

Pancreatic cancer cells harness normal tissue turnover to build protective barriers

Researchers found that pancreatic cancer cells trigger the breakdown of collagen proteins, which increases arginine levels and signals stellate cells to build fibrotic meshes around tumors. This process, known as desmoplasia, creates a dense environment that promotes aggressive growth and blocks access to therapies.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 4, 2022

Study: Vaccine protects most cancer patients from COVID, but risk remains higher for patients with blood cancers

A study using the nation's largest COVID-19 data resource found that the vaccine protects most cancer patients from getting COVID, but those with certain types of cancer have a higher risk of breakthrough infections. The research also highlights the importance of continued vaccination efforts to protect cancer patients.

SourceIndiana University School of Medicine·JournalJournal of Clinical Oncology·DateApr 4, 2022

Levels of a certain hormone could predict or detect bone loss in premenopausal women

Researchers at UCLA found that premenopausal women with low levels of anti-Mullerian hormone are at a higher risk of experiencing significant bone loss within two to three years. The study suggests that measuring AMH levels could help physicians identify women at risk and provide targeted treatment.

SourceUniversity of California - Los Angeles Health Sciences·JournalJournal of Bone and Mineral Research·TypeMeta-analysis·DateApr 4, 2022

How does cancer treatment affect nutrition?

A recent study found that cancer treatment side effects significantly affect patients' and caregivers' eating habits, food preferences, and overall well-being. The research team identified six themes, including managing symptoms, losing taste, and caregiver burden.

SourceDrexel University·JournalNutrients·DateApr 4, 2022

“Tree of life” could help slow climate change

Researchers propose a new way to harvest aguaje fruit from the Mauritia flexuosa palm tree without cutting down female trees, increasing fruit production by 51% and generating $62 million annually. This method could provide a sustainable economic alternative for local communities and reduce deforestation in Amazonia.

SourceUniversity of Leeds·JournalNature Sustainability·TypeObservational study·DateApr 4, 2022

New study shows low D3Cr muscle mass/weight significantly increases risk of hip and potentially other fractures in older men

A new study published in the Journal of Bone and Mineral Research has found that older men with lower amounts of muscle mass have a significantly increased risk of hip and potentially other fractures. The study, led by investigators at Sutter Health's San Francisco Coordinating Center, used a new measure of muscle mass called D3Cr to e...

SourceSutter Health·JournalJournal of Bone and Mineral Research·DateApr 4, 2022

The material that could save industries heat

Scientists at Tohoku University have discovered a compound that can reversibly store and release large amounts of low-grade heat. The birnessite-type layered manganese dioxide with crystal water compound has shown better performance compared to other compounds for heat storage purposes.

SourceTohoku University·JournalNature Communications·DateApr 4, 2022

Giving increased during the pandemic in areas hit hardest by COVID-19

A new study found that charitable giving increased significantly in counties experiencing high COVID-19-related deaths, with a 78% increase in overall giving. Human services charities were the most affected, as donors showed increased generosity towards feeding the hungry, sheltering the homeless, and caring for vulnerable populations.

SourceUniversity of California - San Diego·JournalScientific Reports·TypeData/statistical analysis·DateApr 4, 2022

Story tips: Clean water bots, self-sanitizing N95 masks and cooking with hydrogen

Researchers at Oak Ridge National Laboratory have developed AquaBOT to measure water quality in mid-sized streams with precision and speed. The lab has also created a safe and effective antiviral coating for N95 masks, allowing for reuse of masks made from various fabrics. Furthermore, the lab has designed a cooking appliance that uses...

SourceDOE/Oak Ridge National Laboratory·JournalACS ES&T Water·TypeExperimental study·DateApr 4, 2022

Disbelief in human evolution linked to greater prejudice and racism

Research from UMass Amherst found that disbelief in human evolution is associated with higher levels of prejudice and racist attitudes. The study, conducted across 19 Eastern European countries, 25 Muslim countries, and Israel, linked low belief in evolution to biased attitudes towards outgroups and support for discriminatory behavior.

SourceUniversity of Massachusetts Amherst·JournalJournal of Personality and Social Psychology·TypeData/statistical analysis·DateApr 4, 2022

Alzheimer’s disease: The identification of 75 genetic risk factors brings new insights

Researchers have identified 75 regions of the genome associated with Alzheimer's disease, including 42 novel regions. The study confirms the importance of pathological processes such as amyloid peptide production and tau protein function in the disease. A genetic risk score has also been devised to better evaluate patient risk.

SourceINSERM (Institut national de la santé et de la recherche médicale)·JournalNature Genetics·TypeObservational study·DateApr 4, 2022

Are egg cells in aging primates protected from mutations?

Researchers found that mutation frequencies in mitochondrial DNA of developing egg cells are lower and increase less with age compared to non-reproductive cells. This suggests a protective mechanism may keep reproductive cells relatively stable, potentially related to human propensity to reproduce at later ages.

SourcePenn State·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 4, 2022

Childhood emotional trauma linked to heightened MS risk among women

Research published in the Journal of Neurology Neurosurgery & Psychiatry found a strong association between childhood emotional trauma and an increased risk of multiple sclerosis (MS) in women. Women who experienced childhood abuse, particularly sexual abuse, were more likely to develop MS compared to those without a history of abuse.

SourceBMJ Group·JournalJournal of Neurology Neurosurgery & Psychiatry·TypeObservational study·DateApr 4, 2022

Doctors diagnosing fetal heart disease benefit from explanatory AI

Researchers found that AI-enhanced diagnosis helps doctors accurately detect fetal congenital heart disease, with fellows making the most accurate diagnoses. The new system uses graphical charts to represent the AI's analysis of ultrasound videos, improving accuracy and trust among medical professionals.

SourceRIKEN·JournalBiomedicines·DateApr 4, 2022

The nanodrug that attacks the cancer twice A single nanoparticle does two jobs: enhancing the effectiveness of chemotherapy and reinvigorating the immune system

Researchers at Tel Aviv University developed a drug delivery system based on lipid nanoparticles that utilize RNA to boost personalized cancer care. The nanodrug enhances chemotherapy effectiveness and reinvigorates the immune system, increasing sensitivity to cancer cells.

SourceTel-Aviv University·JournalScience Advances·DateApr 4, 2022

Freshwater mussels can inhibit bacterial diseases

Researchers discovered that freshwater pearl mussel larvae can protect brown trout from Flavobacterium disease outbreaks. The mussels' filtering ability removes bacteria from water, suggesting a potential application in water treatment. This finding highlights the importance of ecosystem services provided by endangered species.

SourceUniversity of Jyväskylä - Jyväskylän yliopisto·JournalParasitology Research·TypeObservational study·DateApr 4, 2022