Results 41 to 50 of about 450,820 (265)

New Adaptable All-in-One Strategy for Estimating Advanced Tropospheric Parameters and Using Real-Time Orbits and Clocks

open access: yesRemote Sensing, 2018
We developed a new strategy for a synchronous generation of real-time (RT) and near real-time (NRT) tropospheric products. It exploits the precise point positioning method with Kalman filtering and backward smoothing, both supported by real-time orbit ...
Jan Douša   +3 more
doaj   +1 more source

A Reproducible QA/QC, Imputation and Robust-Series Workflow for Air-Quality Monitoring Time Series

open access: yesApplied Sciences
This study develops a reproducible and auditable workflow to prepare regulatory air-quality monitoring time series for subsequent temporal analysis, including observational PRE/POST applications around coal-fired power plant closures in northwestern ...
Nuria Fernández Palomares   +5 more
doaj   +1 more source

Volunteered Geographic Information System Design: Project and Participation Guidelines

open access: yesISPRS International Journal of Geo-Information, 2016
This article sets forth the early phases of a methodological proposal for designing and developing Volunteered Geographic Information (VGI) initiatives based on a system perspective analysis in which the components depend and interact dynamically among ...
José-Pablo Gómez-Barrón   +3 more
doaj   +1 more source

Tailoring Nanoscale Surface Topography of Hydrogel for Efficient Solar Vapor Generation.

open access: yesNano letters (Print), 2019
Solar vapor generation, which can separate the soluble or dispersing contaminants from water, is particularly desirable owing to its green energy utilization for water purification technology.
Youhong Guo   +4 more
semanticscholar   +1 more source

Cellular locomotion using environmental topography

open access: yesNature, 2020
Eukaryotic cells migrate by coupling the intracellular force of the actin cytoskeleton to the environment. While force coupling is usually mediated by transmembrane adhesion receptors, especially those of the integrin family, amoeboid cells such as ...
Anne Reversat   +12 more
semanticscholar   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

open access: yesFEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young   +7 more
wiley   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

open access: yesFEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh   +2 more
wiley   +1 more source

Analysis of Current Possibilities for the Implementation of Practical Training in Surgical Interventions in the Head Area

open access: yesInternational Medical Education
Introduction: Simulation-based training is a key component of surgical education; however, existing models, such as dry-laboratory and virtual reality simulators, have limitations in terms of realism and accessibility. The use of human cadaveric material
Beatrisa Volel   +6 more
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Topography shapes the structure, composition and function of tropical forest landscapes

open access: yesEcology Letters, 2018
Topography is a key driver of tropical forest structure and composition, as it constrains local nutrient and hydraulic conditions within which trees grow. Yet, we do not fully understand how changes in forest physiognomy driven by topography impact other
T. Jucker   +8 more
semanticscholar   +1 more source

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