Results 81 to 90 of about 1,048,779 (302)

Evaporation from water surfaces in urban environments, using Prague and Pilsen (Czech Republic) as examples

open access: yesEnvironmental & Socio-economic Studies, 2016
The subject of this study is an evaluation of the amount of evaporation from water surfaces (VVH), measured using EWM devices in two cities of different sizes, and located approximately 80 km from each other – Prague and Pilsen. The results were analyzed
Knozová Gražyna   +3 more
doaj   +1 more source

Curso básico de didáctica de las ciencias enseñanza secundaria profesorado de ciencias en formación y en activo

open access: yesRevista Científica, 2016
Este escrito presenta una reseña del libro escrito por los investigadores: Jaime Carrascosa Alís, Josep Lluís Domenech, Joaquín Martínez Torregrosa, Luis Osuna García y Rafaela Verdú Carbonell y con ISBN: 978-84-616-9964-3. Basic course teaching science
Adriana Patricia Gallego Torres
doaj  

Neurology [PDF]

open access: yes, 1961
Contains reports on five research projects.United States Navy, Office of Naval Research (Nonr-609(39))United States Public Health Service (B-3055, B-3090)Unites States Air Force (Contract AF33(616)-7282)Unites States Air Force (Contract AF-33(616)-7588 ...
Atwood, J.   +10 more
core  

Quality assurance for digital learning object repositories: issues for the metadata creation process [PDF]

open access: yes, 2004
Metadata enables users to find the resources they require, therefore it is an important component of any digital learning object repository. Much work has already been done within the learning technology community to assure metadata quality, focused on ...
Barton, Jane   +3 more
core   +2 more sources

Dynamisch‐kovalente Radikalrekombination zur Assemblierung justierbarer responsiver poröser organischer Käfige

open access: yesAngewandte Chemie, EarlyView.
Dynamisch‐kovalente Chemie (DCC) basierend auf reversibler Radikalrekombination ermöglicht die Assemblierung responsiver, C–C‐verknüpfter organischer Käfige. Substituentenkontrollierte Aryldicyanomethylradikale bilden diskrete, poröse Architekturen mit abstimmbarer Topologie aus Tri2‐ und Tri4‐Käfigen, Gasselektivität, Chromismus und ...
Yannic Hartmann   +6 more
wiley   +1 more source

Comparative Chloroplast Genomics of Endangered Euphorbia Species: Insights into Hotspot Divergence, Repetitive Sequence Variation, and Phylogeny

open access: yesPlants, 2020
Euphorbia is one of the largest genera in the Euphorbiaceae family, comprising 2000 species possessing commercial, medicinal, and ornamental importance.
Arif Khan   +5 more
doaj   +1 more source

Dynamic Covalent Radical Recombination for the Assembly of Tuneable Responsive Porous Organic Cages

open access: yesAngewandte Chemie International Edition, EarlyView.
Dynamic covalent chemistry (DCC) based on reversible radical recombination enables the assembly of responsive, C─C‐linked organic cages. Substituent‐controlled aryldicyanomethyl radicals form discrete, porous architectures with tuneable topology of Tri2 and Tri4 cages, gas selectivity, chromism, and self‐healing behaviour, establishing radical‐based ...
Yannic Hartmann   +6 more
wiley   +1 more source

Viability assessment and transplantation of fatty liver grafts using end‐ischemic normothermic machine perfusion

open access: yesLiver Transplantation, EarlyView., 2022
Abstract End‐ischemic viability testing by normothermic machine perfusion (NMP) represents an effective strategy to recover liver grafts having initially been discarded for liver transplantation (LT). However, its results in the setting of significant (≥30%) macrovesicular steatosis (MaS) have not been specifically assessed.
Damiano Patrono   +8 more
wiley   +1 more source

Algebraic structures of tropical mathematics

open access: yes, 2013
Tropical mathematics often is defined over an ordered cancellative monoid $\tM$, usually taken to be $(\RR, +)$ or $(\QQ, +)$. Although a rich theory has arisen from this viewpoint, cf.
Izhakian, Zur   +2 more
core   +1 more source

Thermal Calculations for Co‐Firing of Hydrogen/Ammonia and Coal in 660‐MW Coal‐Fired Boilers

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To achieve a clean energy transition under the dual carbon goals, blending hydrogen/ammonia into pulverized coal boilers represents a key technological pathway. Different hydrogen/ammonia co‐firing ratios (5%–50%) are investigated for their impact on the thermodynamic characteristics of 660‐MW supercritical boiler at 100% and 20% boiler ...
Yaodong Da   +7 more
wiley   +1 more source

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