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We investigated whether dietary calcium intake affects how adolescents handle lead internally. Using paired blood and urinary lead data, we assessed whether calcium status is associated with differences in lead clearance. The results point to subgroups of adolescents—particularly those with lower calcium intake—who may carry a higher internal lead burden than their blood levels alone would suggest.

The authors examine the factors that impact a ballet master's career.

This study investigates the dynamic reaction between liquid gallium and aluminum, which poses a challenge when using high-performance gallium-rich thermal interface materials for electronic cooling. Through the usage of in-situ microscopy, we show that while aluminum oxide coatings slow gallium-induced damage, nanometer-thick iridium coatings effectively prevent reaction and surface degradation at device-operating temperatures. These findings highlight a promising thermal-cooling architecture for extending the lifespan and reliability of high-power electronic heat dissipation systems.

Here the authors investigated whether frequent use of generative AI tools triggers upward social comparison and negatively impacts users' performance self-esteem. Based on a survey of 121 adults, they found no significant relationship between AI usage and self-esteem, concluding that current chatbot interactions do not pose the same psychological threat as peer-based comparisons.

The authors looked at whether retinal features, specifically lens clarity, optic nerve cupping, and hyperreflective foci, can serve as biomarkers for neuro-ophthalmological diseases, which share pathological mechanisms with neurodegeneration and may indicate broader neurological risk. Using multimodal clinical data and machine learning, they investigated the potential of retinal imaging as a complementary diagnostic tool for more accurate and accessible detection of neurological disorders.

This study investigated whether chlorogenic acid, a plant compound with known health benefits, can interact with the proteins CHIT1 and CHI3L1, which could ultimately lead to new therapeutic strategies for a range of chronic diseases.

The authors monitored water quality over time looking for influences from construction and deforestation.

The authors assess the effect of ER stress on sleep quality in fruit flies.

The authors assess the relationship between supportive family environments and internalized stigma in adolescents.

This study investigates how bending radius, wavelength, and number of turns affect signal attenuation in single-mode optical fibers.