Results 191 to 200 of about 9,998 (304)

Environmental Stress Induces Altered Composition of Streptococcus mutans Membrane Vesicles: pH‐Driven Changes in Membrane Vesicle Production and Composition

open access: yesMolecular Oral Microbiology, Volume 41, Issue 3, Page 145-157, June 2026.
ABSTRACT Bacteria produce membrane vesicles (MVs) in response to environmental stress and genetic changes. Previous studies have shown that MVs can trigger inflammatory responses and may serve as important mediators of host–microbe interactions. Given the dynamic nature of the oral microbiome, bacteria such as Streptococcus mutans are frequently ...
Taylor C. Boone   +2 more
wiley   +1 more source

Clean Up Behind You ‐ Novel Patterning Approach for Solid Immersion Lenses

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
A focused ion beam (FIB) milling strategy enables rapid fabrication of solid immersion lenses (SILs) with smooth, debris‐free surfaces eliminating the need for post‐processing. The optimized pattern improves efficiency and surface quality. SILs containing NV centers are also investigated, confirming the technique's suitability for quantum and photonic ...
Aleksei Tsarapkin   +10 more
wiley   +1 more source

Geography of race and income shape spatial data gaps in two national participatory science projects

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1485-1498, May 2026.
Abstract Context and Need: Participatory projects where people contribute geo‐referenced biodiversity data, like eBird and iNaturalist, are commonly used tools to enhance the data collection capacity for research, management, and environmental learning. Despite their utility, demographic disparities in participation, demographic patterns of residential
Deja Perkins   +3 more
wiley   +1 more source

Bio‐Based Polyurethanes: Mechanical Performance, Structure–Property Relationships, and Future Directions

open access: yesJournal of Polymer Science, Volume 64, Issue 9, Page 1860-1894, 1 May 2026.
This review examines bio‐based polyurethanes from renewable feedstocks, focusing on structure‐property relationships governing mechanical performance. It analyzes reinforcement strategies, benchmarks against petrochemical counterparts, and explores future directions, including non‐isocyanate routes and circular economy integration for sustainable high ...
Khaled Chawraba   +4 more
wiley   +1 more source

Real‐Time Terrain Traversability Analysis and Mapping for Autonomous Robotics in Dynamic Environments: Fusing Appearance‐ and Geometry‐Based Approaches

open access: yesJournal of Field Robotics, Volume 43, Issue 3, Page 1719-1738, May 2026.
ABSTRACT This paper presents advanced methodologies for real‐time terrain analysis and mapping in autonomous robotic systems. The focus is on appearance‐based terrain traversability analysis and geometric‐based terrain traceability analysis. In the appearance‐based approach, an enhanced segmentation model using pixel‐based augmentation and 13 unique ...
Semih Beycimen   +2 more
wiley   +1 more source

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