Results 231 to 240 of about 14,428 (246)

Atrophic Skeletal Muscle‐Derived Extracellular Vesicles Transfer miR‐125a‐5p to Inhibit Bone Formation in Osteoporosis during Aging

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
A muscle‐bone endocrine pathway in aging is revealed in which extracellular vesicles released from atrophic skeletal muscle (Aged‐SKM‐EVs) inhibit bone formation. These EVs deliver miR‐125a‐5p to osteoblasts, thereby suppressing the SIRT7‐Sp7 signaling axis and osteogenic differentiation.
Xiaoyan Shao   +22 more
wiley   +1 more source

Modulating Persistent Photoconductivity through Barrier Engineering for High‐performance and Multifunctional Two‐dimensional Optoelectronic Devices

open access: yesAdvanced Science, Volume 13, Issue 27, 13 May 2026.
Schottky barrier engineering using van der Waals contacts enables effective modulation of persistent photoconductivity (PPC) in optoelectronic devices. A high persistent photoconductivity gain (PPCG) (307.6%) is achieved in a high‐barrier Au/MoS2 junction, supporting photomemory and optoelectronic synaptic behaviors. A low PPCG (4.72%) is achieved in a
Panpan Huo   +8 more
wiley   +1 more source

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1151-1298, May 2026.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +1 more source

A Critical Look at Directional Random Walk Modeling of Sparse Fossil Data

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Weighted least squares is a better method than directional random walk for classification of fossil data ABSTRACT The general random walk model (GRW) of Hunt is used to infer directional evolution in mean trait values from sparse fossil data. Such evolutions are modeled as the accumulated result of small steps with mean step sizes and step variances ...
Rolf Ergon
wiley   +1 more source

Prophybiotics for in-ovo stimulation; validation of effects on gut health and production of broiler chickens. [PDF]

open access: yesPoult Sci
Wishna-Kadawarage RN   +4 more
europepmc   +1 more source

When Snowpacks Shrink: Declining Weathering and Export Rates but Rising Stream Solute Concentrations in Warming Mountains

open access: yesHydrological Processes, Volume 40, Issue 5, May 2026.
In a snow‐dominated headwater catchment, snow‐dependent water storage controls silicate weathering and solute export. In the driest year with the least snow water equivalent (SWE), rates of silicate weathering and export rates of weathering products were about half and a third of those in the wettest year with the highest SWE.
Abigail S. Knapp   +5 more
wiley   +1 more source

Moose indifferent to canopy loss from forest disturbance by bark beetles

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
Moose showed strikingly similar patterns of habitat selection before and after widespread forest disturbance following an infestation of bark beetles. Our findings indicate that beetle‐kill does not appreciably alter habitat quality for moose and highlight the importance of riparian areas in sustaining moose as they contend with changing forests ...
Alexander B. May   +5 more
wiley   +1 more source

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