Add BrightSurf on Google Email

Science News Archive 2024 - Page 228


Page 228 of 484

Most Salmonella illnesses from chicken caused by few products with high levels of virulent strains

A new study reveals that a small number of products containing high levels of virulent Salmonella strains are responsible for most salmonellosis cases from raw chicken parts. The researchers suggest regulating these high-risk contamination events rather than frequency of detection to protect public health.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalJournal of Food Protection·TypeComputational simulation/modeling·DateJul 15, 2024

Scorching storms on distant worlds revealed in new detail

Astronomers have created the most detailed weather report for two distant worlds, measuring light waves emitted from their surfaces to track atmospheric changes. The study uses NASA's JWST to capture the extreme conditions on brown dwarfs, providing insights into the potential missing link between stars and planets.

SourceUniversity of Edinburgh·JournalMonthly Notices of the Royal Astronomical Society·TypeImaging analysis·DateJul 15, 2024

Media Tip Sheet: Symposia at ESA2024

The Ecological Society of America's Annual Meeting in Long Beach will feature symposia addressing nonmaterial ecosystem services, nature-based solutions to urban heat and stormwater runoff, conserving soil biodiversity, harnessing AI for ecology, and other topics. Media attendees can access scientific sessions, press room amenities, an...

New concept explains how tiny particles navigate water layers – with implications for marine conservation

Researchers have unveiled insights into how microscopic organisms such as marine plankton move through water with different density layers. The study reveals two types of microscopic swimmers that navigate density gradients differently, with pullers moving parallel to the gradient and pushers swimming perpendicular.

SourceUniversity of British Columbia·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateJul 15, 2024

Survey finds women in their 40s may choose to delay mammography when informed about the benefits and harms

A nationally representative US survey found that women aged 39-49 who received a decision aid describing the benefits and harms of breast cancer screening were more likely to delay or forego screening. The study suggests that providing accurate information may change intention to screen for some women, particularly those with higher br...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateJul 15, 2024

Children living in deprived areas are three times more likely to need dental extractions in hospital

A study published in BMJ Public Health found that children living in deprived areas have a three times higher risk of needing dental extractions under general anaesthesia. This highlights the need for targeted interventions and improved access to preventive dental services to address socioeconomic and ethnic inequalities in oral health.

SourceQueen Mary University of London·JournalBMJ Public Health·TypeData/statistical analysis·DateJul 15, 2024

Unlocking the mystery of preexisting drug resistance: New study sheds light on cancer evolution

Researchers at Case Western Reserve University discovered that ecological interactions between resistant cells and their ancestors play a pivotal role in reducing the costs of resistance. This finding has significant implications for understanding cancer evolution and developing innovative treatment strategies.

SourceCase Western Reserve University·JournalPRX Life·TypeObservational study·DateJul 15, 2024

Cosmic wrestling match

A team led by Jamie McCullough and Daniel Grün has analyzed the largest dataset to date, shedding light on what the color of various galaxies says about their true distance. The results make it possible to statistically determine the true distance of each galaxy observed in images taken by Euclid or the Dark Energy Survey.

SourceLudwig-Maximilians-Universität München·JournalMonthly Notices of the Royal Astronomical Society·TypeObservational study·DateJul 15, 2024

Lowering systolic blood pressure below 120 mmHg may reduce dementia risk among Black, Latino populations

A new study suggests that lowering systolic blood pressure below 120 mmHg over time may produce slight health-protective benefits against late-life dementia. The study found that middle-aged adults who lower their systolic blood pressure, particularly Black and Latino individuals, had a reduced risk of developing dementia.

SourceBoston University School of Public Health·TypeData/statistical analysis·DateJul 15, 2024

Off-the-shelf wearable trackers provide clinically-useful information for patients with heart disease

A study published in Nature Medicine found that off-the-shelf wearable trackers can monitor the response to two treatments for atrial fibrillation and heart failure. The devices provided clinically useful information similar to in-person hospital assessments, with a neural network helping to analyze missing data.

SourceUniversity of Birmingham·JournalNature Medicine·TypeRandomized controlled/clinical trial·DateJul 15, 2024

Children’s Hospital of Philadelphia researchers develop antioxidant strategy to address mitochondrial dysfunction caused by SARS-CoV-2 virus

Children's Hospital of Philadelphia researchers have developed a new strategy to treat complex COVID-19 cases by targeting the mitochondria with antioxidants. This approach aims to reduce the effects of the virus while avoiding viral gene mutation resistance, which may be useful for treating other viruses.

SourceChildren's Hospital of Philadelphia·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJul 15, 2024

With the rise of global mobility, the topic of international employees’ adjustment needs attention

A recent study by KTU and Germany highlights the lack of research on international employee adjustment, particularly for self-initiated expatriates and migrants. The study proposes a future research agenda to address organisational support, individual factors, and demographics influencing adjustment.

SourceKaunas University of Technology·JournalHumanities and Social Sciences Communications·TypeLiterature review·DateJul 15, 2024

Big boost for new epigenetics paradigm: CoRSIVs, first discovered in humans, now found in cattle

Researchers at Baylor College of Medicine discover that cattle have CoRSIVs, regions on the DNA that regulate gene expression and can predict desirable traits such as milk production and disease resistance. The study opens new possibilities for improving production efficiency in the cattle industry.

SourceBaylor College of Medicine·JournalGenome Biology·TypeData/statistical analysis·DateJul 14, 2024

Study on post-COVID-19 condition: Which factors have an impact on the risk

A recent study found that the Omicron variant is associated with a lower risk of post-COVID-19 condition, as well as reduced risk after fourth vaccinations. Additionally, individuals who had previously contracted COVID-19 without developing symptoms are less likely to develop post-COVID-19 condition upon subsequent infections.

SourceNAKO e.V. / NAKO Gesundheitsstudie·JournalJournal of Infection·TypeData/statistical analysis·DateJul 14, 2024

A bright cyan fluorescence calcium indicator for mitochondrial calcium with minimal interference from physiological pH fluctuations

Researchers developed TurCaMP, a bright cyan fluorescent protein that accurately monitors mitochondrial calcium dynamics. Its unique properties enable stable basal fluorescence in the physiological pH range, facilitating accurate and multiplexed calcium dynamics monitoring.

SourceHigher Education Press·JournalBiophysics Reports·TypeExperimental study·DateJul 14, 2024

Versatile Warrior: MXene/CNT Janus Films for Electromagnetic & Infrared Shielding/Detection in Harsh Environments

Researchers have developed MXene/CNT Janus films with high electrical conductivity, robust mechanical strength, and excellent thermal camouflage performance. These films demonstrate exceptional electromagnetic shielding capabilities and can detect infrared radiation, making them ideal for harsh environment applications.

SourceShanghai Jiao Tong University Journal Center·JournalNano-Micro Letters·TypeExperimental study·DateJul 14, 2024

Unraveling disease patterns in older adults starting long-term care in Japan and their future health outcomes

Researchers identified six clinical subtypes in older adults starting long-term care in Japan, including cardiac disease, respiratory disease/cancer, and insulin-dependent diabetes, which incur higher mortality risks and worsen care needs. These findings can inform optimal interventions for each subtype and influence healthcare policy.

SourceUniversity of Tsukuba·JournalScientific Reports·DateJul 12, 2024

Variation in the permafrost active layer over the Tibetan Plateau since 1980

The Tibetan Plateau's permafrost active layer has shown significant interdecadal changes since 2000, with a decrease in overall thickness and regional inconsistencies. Environmental factors such as temperature and precipitation significantly impact the active layer's transformation under global warming.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAtmospheric and Oceanic Science Letters·DateJul 12, 2024

Living in disadvantaged neighborhoods influences stress-related genes, which may contribute to aggressive prostate cancer in African American men

A study found that living in disadvantaged neighborhoods is associated with higher stress-related gene activity, which could contribute to aggressive prostate cancer in African American men. The research also linked five genes related to inflammation to an increased risk of prostate cancer.

SourceUniversity of Maryland School of Medicine·JournalJAMA Network Open·TypeObservational study·DateJul 12, 2024

Neural networks made of light

Researchers at Max Planck Institute propose a new method for implementing neural networks with optical systems, which could lead to faster and more energy-efficient alternatives. The approach allows for parallel computations in high speeds limited by the speed of light, and can be applied to various physically different systems.

SourceMax Planck Institute for the Science of Light·JournalNature Physics·TypeExperimental study·DateJul 12, 2024