Results 81 to 90 of about 2,312,921 (342)

High Turnover Frequency in the Electrocatalytic Reduction of Nitrous Oxide to Dinitrogen at a Binuclear Copper Complex of 3,5‐Diamino‐1,2,4‐Triazole

open access: yesAngewandte Chemie, EarlyView.
Inspired by nitrous oxide reductase, a binuclear copper complex supported by carbon black was utilized for the electrocatalytic N₂O reduction under ambient conditions. The binuclear Cu center enables exceptionally high turnover frequency and nearly 100% Faradaic efficiency for the electrochemical N₂O reduction.
Zhengwei Ma   +10 more
wiley   +2 more sources

The Haber Bosch Catalyst from Solid state Chemistry to Mesotechnology

open access: yesAdvanced Energy Materials, EarlyView.
A comprehensive, multi‐scale, multi‐modal study of the structural diversity of a technical multi‐promoted Haber Bosch catalyst for ammonia synthesis is provided. The different contributions of ammonia Fe are revealed and the presence of cement phases that have yet not been incorporated into discussions on the function of this catalyst system is shown ...
Kassiogé Dembélé   +20 more
wiley   +1 more source

The Correlation of Digital Literation and STEM Integration to Improve Indonesian Students’ Skills in 21st Century

open access: yes, 2020
Dynamic human development in the 21st Century demands students to make innovations in the world of education. Students are required to have 21st-century skills, namely creativity, critical thinking, collaboration, and communication. In contrast, teachers
Dedi Riyan Rizaldi   +2 more
semanticscholar   +1 more source

A Peirce for the 21st century

open access: yesSign Systems Studies, 2018
Review of Peirce’s Speculative Grammar: Logic as Semiotics by Francesco Bellucci. New York, London: Routledge, 2017, 388 pages.
openaire   +4 more sources

Recent Progress in Silver Nanowire‐Based Transparent Conductive Electrodes

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This work has reviewed silver nanowire‐based transparent conductive electrodes in terms of synthesis strategies, device fabrication processes, composition engineering, and property tailoring for flexible electronic applications. The developments of silver nanowire‐based platforms in sensors, solar cells, electronic skin, electromagnetic shielding ...
Jintao Wang   +5 more
wiley   +1 more source

Universal Algebra I policy, access, and inequality: Findings from a national survey

open access: yesEducation Policy Analysis Archives, 2017
Many in the US view algebra as a gatekeeper to advanced study of mathematics, and increasing enrollment in algebra courses as a strategy to address unequal access to educational opportunity.
Janine T. Remillard   +4 more
doaj   +1 more source

Exploring consumption profiles, consumer experience and quality claims of Canary Islands' cider (Spain): A multidimensional analysis

open access: yesAgribusiness, EarlyView.
Abstract The exponential expansion of the global cider market positions it as a viable alternative to traditional choices such as wine and beer. Nevertheless, there exists a paucity of research examining the various factors influencing consumer interest in cider.
Eva Parga Dans   +3 more
wiley   +1 more source

Enhanced thermoelectric performance of In-substituted GeSb6Te10 with homologous structure

open access: yesAPL Materials, 2014
We studied the crystal structure and thermoelectric properties of polycrystalline GeInxSb6−xTe10 (x = 0, 0.18, 0.3, and 0.6). Rietveld and Le Bail analyses showed that all compositions crystallized in trigonal structures with a 51-layer period ...
Atsuko Kosuga   +7 more
doaj   +1 more source

Eutrophication will increase methane emissions from lakes and impoundments during the 21st century

open access: yesNature Communications, 2019
Lakes and impoundments are an important source of methane (CH4), a potent greenhouse gas, to the atmosphere. A recent analysis shows aquatic productivity (i.e., eutrophication) is an important driver of CH4 emissions from lentic waters.
J. Beaulieu, T. DelSontro, J. Downing
semanticscholar   +1 more source

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