Results 61 to 70 of about 783,813 (299)

A comparative study of impervious surface extraction using Sentinel-2 imagery

open access: yesEuropean Journal of Remote Sensing, 2020
The accuracy and efficiency of impervious surface extraction using different algorithms vary greatly, and algorithm applicability depends on the study area.
Junyi Chen   +5 more
doaj   +1 more source

A Magneto‐Mechanically Activated Nerve Guidance Conduit Promotes Peripheral Nerve Regeneration via TIMP1‐Mediated Membrane Tension Transfer

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a magneto‐mechanical strategy that incorporates FP@MSCs into an aligned PCL/GelMA nerve guidance conduit. Magnetic stimulation increases membrane tension in FP@MSCs, triggering cytoskeletal remodeling, Schwann cell‐like differentiation, and TIMP1 secretion. TIMP1 activates ITGB1/CD63–FAK signaling in NE‐4C cells, increasing membrane
Xinyu Zhu   +14 more
wiley   +1 more source

Classification of watersheds into integrated social and biophysical indicators with clustering analysis

open access: yesEcological Indicators, 2014
Abstract In this work, we classify watersheds in the US portion of the Great Lakes basin according to a wide range of social and environmental characteristics. Classified watershed indicators serve to provide organizing principles for prescribing effective management strategies and for developing regional scale monitoring and modeling efforts ...
Alex Mayer, Richelle Winkler, Lauren Fry
openaire   +1 more source

Spatially Controlled Embedded Bioprinting of Prevascularized Spheroids‐Containing Biopatch Enables Functional Skin Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
A spatially controlled embedded bioprinting strategy enables precise engineering of prevascularized multicellular spheroids within skin‐derived dECM bioinks. Optimized spheroid size, composition, and spacing promote vascular maturation, paracrine signaling, and tissue integration, resulting in enhanced angiogenesis, blood perfusion, and functional skin
Minjun Ahn   +6 more
wiley   +1 more source

Plasma Gelation as an Overlooked Determinant of Transfection Efficiency in Protein Corona‐Coated Lipid Nanoparticles: Implications for In Vitro–In Vivo Translation

open access: yesAdvanced Healthcare Materials, EarlyView.
Upon contact with plasma, lipid nanoparticles (LNPs) rapidly acquire a protein corona (PC) that redefines their biological identity. In calcium‐containing environments, these coronated particles trigger the formation of a gel‐like plasma network, profoundly altering their transport properties and reducing their effective availability.
Serena Renzi   +14 more
wiley   +1 more source

Separating crested wheatgrass using field hyperspectral data in the native prairie of southwestern Saskatchewan

open access: yesCanadian Journal of Remote Sensing
Crested wheatgrass (Agropyron cristatum) is an introduced invasive grass species in North American grasslands. It was initially seeded to increase the grazing duration but is now threatening native grassland biodiversity.
Mohammed   +6 more
doaj   +1 more source

Progression of vulnerability to earthquakes in the urban area of the District of Santiago de Cali, Colombia

open access: yesRevista de Estudios Latinoamericanos sobre Reducción del Riesgo de Desastres, 2023
Disaster risk management in urban environments depends to a large extent on the availability of information related to studies and cartographic products that express the social, economic and environmental conditions that intervene in the construction of ...
Jorge Andrés Vélez Correa   +2 more
doaj   +1 more source

Micronekton indicators evolution based on biophysically defined provinces

open access: yesState of the Planet
Abstract. Micronekton are mid-trophic marine organisms characterized by a size range of 2 to 20 cm, gathering a wide diversity of taxa (crustaceans, fish, molluscs, etc.). They are responsible for an important active carbon export to the deep ocean because of their diel vertical migrations and constitute the main prey for pelagic predators.
Sarah Albernhe   +5 more
openaire   +5 more sources

Hydrophilic Polymers Enable Gastrointestinal Transit Monitoring by Fluorine‐19 Magnetic Resonance Imaging

open access: yesAdvanced Healthcare Materials, EarlyView.
Hydrophilic fluorinated copolymers dissolve in chyme and give a strong, single 19F signal, unlike phase‐separating perfluorocarbons. Combined 1H‐19F MRI tracks their whole‐gut transit non‐invasively and without ionizing radiation. In rats, the tracers move through the gastrointestinal tract, resist resorption, and are well tolerated, a proof‐of‐concept
Ondřej Groborz   +13 more
wiley   +1 more source

Seasonal variations and spatial mechanisms of 2D and 3D green indices in the central urban area

open access: yesEcological Indicators
Green indices are critical indicators of urban greening quality, essential for optimizing and managing urban green spaces. However, most existing research focuses on vegetation growth during the growing season, limiting its ability to capture the ...
Weiyue Duan, Aibo Jin, Xi Liu, Hui Li
doaj   +1 more source

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