Results 91 to 100 of about 120,078 (296)

Identification and Mechanisms of Osteocyte Subsets Involved in the Pathological Progression of Osteoporosis

open access: yesAdvanced Science, EarlyView.
Osteocyte heterogeneity in bone remains poorly understood. This study identifies six distinct osteocyte subsets in mice, revealing a key subpopulation (BHR‐Ocys) that drives bone loss in osteoporosis. BHR‐Ocys promote osteoclast‐mediated resorption via a novel Sema5a‐Plxna1 signaling axis.
Zengxin Jiang   +8 more
wiley   +1 more source

Geodetic glacier mass balance (1975–1999) in the central Pamir using the SRTM DEM and KH-9 imagery

open access: yesJournal of Glaciology, 2019
Multiple studies on regional glacier mass balance in the Pamir Mountains have been conducted using the geodetic method, but they were rarely extended to the period before 2000.
Yushan Zhou   +4 more
semanticscholar   +1 more source

Improving Interlayer Interactions in Proton Exchange Membrane Fuel Cell through Carbon Nanotube‐Based Catalyst Design

open access: yesAdvanced Science, EarlyView.
This review highlights how carbon nanotube (CNT)–based catalyst designs enhance proton exchange membrane fuel cell (PEMFC) performance by improving interlayer interactions. Vertically aligned CNTs facilitate water management, mass transfer, and electron conduction while promoting effective active sites and reducing interfacial resistance.
Ling Ai   +3 more
wiley   +1 more source

Six Decades (1958–2018) of Geodetic Glacier Mass Balance in Monte San Lorenzo, Patagonian Andes

open access: yesFrontiers in Earth Science, 2019
A full understanding of glacier changes in the Patagonian Andes over decadal to century time-scales is presently limited by a lack of detailed and appropriate long-term observations.
D. Falaschi   +5 more
semanticscholar   +1 more source

Designing Co–N/C Cathode Catalysts with Dense Atomic Cobalt Sites for Enhanced PEMFC Performance

open access: yesAdvanced Science, EarlyView.
Cobalt‐based platinum‐metal free catalysts can compete with iron‐based materials as catalysts on the cathodes of fuel cells due to their high site density and activity. This discovery highlights the importance of understanding the active sites responsible for the catalytic activity in these non‐precious metal catalysts.
Mengjun Gong   +7 more
wiley   +1 more source

Thickness and geodetic mass balance changes for the Triglav Glacier (southeastern Alps) from 1952 to 2016

open access: yesActa Geographica Slovenica, 2020
Various geodetic and lidar measurements performed on the Triglav Glacier (Julian Alps, Slovenia) make it possible to study not only the extent of the glacier but also changes in its thickness and volume.
Mihaela Triglav Čekada, Matija Zorn
doaj   +1 more source

Comprehensive study of Algerian nettles: Phenolic content and multifunctional activities of Urtica pilulifera and Urtica urens

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This study investigates the phenolic profile, antioxidant capacity, antimicrobial effect, and antihemolytic activity of nettle leaves from Algerian species Urtica pilulifera and Urtica urens. Results show high levels of flavonoids, tannins, alkaloids, and terpenoids in the extracts.
Hasna Bouhenni   +8 more
wiley   +1 more source

An estimate of glacier mass balance for the Chandra basin, western Himalaya, for the period 1984–2012

open access: yesAnnals of Glaciology, 2017
An improved understanding of fresh water stored in the Himalaya is crucial for water resource management in South Asia and can be inferred from glacier mass-balance estimates.
S. A. Tawde, A. Kulkarni, G. Bala
semanticscholar   +1 more source

Design of a Sustainable Polysaccharide‐Lignocellulosic‐Mineral Granular Biocomposite Sorbent for Methylene Blue Removal

open access: yesJournal of Applied Polymer Science, EarlyView.
This manuscript describes the preparation of four types of spent coffee ground‐based adsorbents. Herein, the influence of the alkali pre‐treatment step (different NaOH concentrations) as well as the effect of crosslinking with epichlorohydrin is described.
Bernd Steiger, Lee Wilson
wiley   +1 more source

Annual Glacier-Wide Mass Balance (2000-2016) of the Interior Tibetan Plateau Reconstructed from MODIS Albedo Products

open access: yesRemote Sensing, 2018
Glaciers in the Tibetan Plateau (TP) play a crucial role in regulating agriculture irrigation, river discharge and the regional/global climate system.
Zhimin Zhang   +4 more
semanticscholar   +1 more source

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