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Science News Archive July 2025 - Page 9


Page 9 of 54

New examination of fish considered a ‘living fossil’ changes our understanding of vertebrate skull evolution

Researchers reanalyzed the coelacanth's skull musculature and found that only 13% of previously identified evolutionary muscle novelties were accurate. The study also identified nine new evolutionary transformations related to feeding and respiration, revealing a more similar anatomy to cartilaginous fish and tetrapods.

High-toughness Al2O3 composite ceramics enabled by innovative SiCw@TiC core-shell whisker toughening phase

Researchers from Hebei University of Engineering developed a novel strategy for Al2O3 ceramic toughening using TiC-coated SiCw core-shell structured whiskers, achieving remarkable fracture toughness. The unique core-shell architecture creates multiscale heterogeneity, generating intricate stress fields that activate multiple energy-dis...

SourceTsinghua University Press·JournalJournal of Advanced Ceramics·DateJul 28, 2025

New research uncovers gut microbe-derived metabolites as potential therapy for obesity-related metabolic disorders

Researchers discovered that indole, a key tryptophan metabolite produced by gut bacteria, can restore enteroendocrine cells in the intestines, which are diminished in obesity. The study suggests that microbial metabolites derived from dietary tryptophan may hold promise as a novel therapy for obesity-associated metabolic complications.

SourceMarshall University Joan C. Edwards School of Medicine·JournalInternational Journal of Molecular Sciences·TypeExperimental study·DateJul 28, 2025

At-home melanoma testing with skin patch test

A new silicone patch with star-shaped microneedles, called the ExoPatch, distinguishes melanoma from healthy skin in mice, capturing cancer biomarkers from exosomes. The test shows promise for early detection of the most aggressive form of skin cancer without a biopsy or blood draw.

SourceUniversity of Michigan·JournalBiosensors and Bioelectronics·DateJul 28, 2025

Saving women first? What the Gaza hostage crisis tells us about gender and public opinion

A study found that public support for releasing women first is widespread, but linked to beliefs about gender, with benevolent sexism being a key predictor. Attitudes also followed a pattern tied to ideals of motherhood, suggesting that these cultural narratives may weigh more heavily than gender alone in shaping public judgment.

SourceBen-Gurion University of the Negev·JournalCommunications Psychology·TypeSurvey·DateJul 28, 2025

A leading-edge review maps path to better Asian monsoon predictions under global change

A comprehensive review synthesizes decades of research on Asian monsoon climate prediction, highlighting three key pillars: ENSO, atmospheric teleconnections, and monsoon-ocean interactions. The study emphasizes the need for a multi-pronged approach to overcome challenges in forecasting, including leveraging AI and improving model accu...

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJul 28, 2025

Type 2 diabetes and financial outcomes

Patients with type 2 diabetes experience more severe financial difficulties compared to those without the condition. The study emphasizes the importance of considering patient financial health when treating type 2 diabetes, particularly for vulnerable populations.

SourceJAMA Network·JournalJAMA Network Open·DateJul 28, 2025

Thousands more B.C. women chose top-tier birth control after patient costs eliminated

A new study found that B.C.'s universal, no-cost coverage policy led to a significant increase in the use of long-acting reversible contraception among reproductive-aged women. The study tracked nearly 860,000 women and discovered that cost was a major barrier to accessing effective birth control methods like IUDs and implants.

SourceUniversity of British Columbia·JournalBMJ·TypeData/statistical analysis·DateJul 28, 2025

Zooming into the nanoworld: how high-order signals clarify the invisible

Researchers developed a refined imaging method using fifth-order near-field signals to sharpen visualization of nanoscale materials under infrared light. The technique captures subtle plasmonic effects and material interfaces with high fidelity, surpassing the resolution of standard atomic force microscopy.

Artificial biosensor can better measure the body’s main stress hormone

A new artificial biosensor developed by University of California, Santa Cruz's Andy Yeh can accurately measure cortisol levels across all relevant ranges for human health. The sensor uses a smartphone camera to detect light emissions, providing high sensitivity and dynamic range for detecting small molecule analytes.

SourceUniversity of California - Santa Cruz·JournalJournal of the American Chemical Society·DateJul 28, 2025

There’s something in the air

Researchers at the University of Tokyo found that certain scent compounds in female body odor increase during ovulation and can subtly influence how men feel, making them perceive the scent as more pleasant and reducing stress. The study suggests that smell may play a role in shaping human interactions.

SourceUniversity of Tokyo·JournaliScience·TypeExperimental study·DateJul 28, 2025

Helping Canada lead in health innovation

Dr. Muhammad Mamdani advocates for reframing Canada's approach to funding health research and commercialization to focus on clinical uses and align with healthcare organizations. This will help reduce the failure rate of health start-ups, which are often disconnected from clinical environments.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·TypeCommentary/editorial·DateJul 28, 2025

The key to success: Why university startups don’t perform as well as corporate startups

A study by Professor Alex Coad found that university startup entrepreneurs lack the commercial acumen and autonomy needed for success, with a focus on societal impact rather than financial performance. This can be overcome with guidance, peer networks, and support institutions, enabling them to adapt to their entrepreneurial role.

SourceWaseda University·JournalThe Journal of Technology Transfer·TypeSystematic review·DateJul 28, 2025

U.S.-born Latinos have higher rates of obesity compared to foreign-born Latino and white youth

A recent study analyzed data from community health centers in the US between 2012-2020, finding that U.S.-born Latinos have significantly higher obesity rates compared to foreign-born Latino and non-Hispanic White youth. The researchers noted a trend of increasing obesity prevalence over time across all three groups.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateJul 28, 2025

Safety of JN.1-updated mRNA COVID-19 vaccines

A nationwide cohort study of 1 million adults found no increased risk of 29 adverse events after vaccination with the updated COVID-19 mRNA vaccine containing the SARS-CoV-2 Omicron JN.1 lineage. The study provides reassuring safety data on the new vaccine, which has been widely adopted in response to the Omicron variant

SourceJAMA Network·JournalJAMA Network Open·DateJul 28, 2025

TFLN-based RGB multiplexer for energy-efficient laser beam scanning

Researchers have developed a new RGB multiplexer based on thin-film lithium niobate (TFLN) that enables faster and more energy-efficient light modulation for laser beam scanning systems. The multiplexer successfully combined red, green, and blue laser beams, generating mixed colors such as cyan, magenta, and yellow, and even white light.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics Nexus·DateJul 28, 2025

Research for stronger bones and muscles in old age

Scientists at Leipzig University have discovered that the adhesion G protein-coupled receptor GPR133 plays a central role in building and maintaining healthy bone. By mimicking natural activation, a new active substance AP503 can strengthen bones and potentially treat osteoporosis.

SourceUniversität Leipzig·JournalSignal Transduction and Targeted Therapy·TypeExperimental study·DateJul 28, 2025

Employees who spot problems help the bottom line, so why do leaders give more power to bootlickers?

Studies found that leaders are less likely to empower employees who raise concerns about workplace decisions, instead favoring those who praise the status quo. Employees who exhibit challenging voice are seen as threats to leadership, while supportive voice is viewed as an indicator of shared goals.

SourceNorth Carolina State University·JournalJournal of Applied Psychology·TypeExperimental study·DateJul 28, 2025

Tip sheet summaries Annals of Family Medicine July/August 2025

Researchers found that veterans who gained housing were more than twice as likely to undergo colorectal and breast cancer screening, with significant differences between those who secured housing and those who continued to experience homelessness. The study suggests that housing may facilitate screening by promoting access to communica...

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateJul 28, 2025

Report proposes considerations for data transformation to advance AI research and implementation in primary care

The report outlines five key considerations for data transformation in primary care, including automation of data collection and integration with human workflows. Effective implementation requires cross-sectoral collaborations between government, industry, and academia to upgrade human and data infrastructures.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateJul 28, 2025

Study finds that white students visit college advisers the least, but benefit most in terms of graduation rates and GPA

A new study by NYU Steinhardt School of Culture, Education, and Human Development found that White students who don't meet with academic advisers have higher GPAs and graduation rates compared to nonwhite students and international students. Despite meeting with advisers more frequently, students of color received fewer benefits.

SourceNew York University·JournalEducational Researcher·TypeData/statistical analysis·DateJul 28, 2025