Results 81 to 90 of about 2,444,457 (309)

A Mechanochemical Kolbe–Schmitt Reaction: Catechol Carboxylation Provides Building Blocks for Renewable Plasticizers

Angewandte Chemie, EarlyView.
A mechanochemical Kolbe–Schmitt reaction of disodium catecholate enables the synthesis of mono‐ and dicarboxylated catechols at low temperature and CO2 pressure. Directly derivatizing the resulting carboxylic acid and phenolic moieties in the obtained mixture provides plasticizer blends with efficiencies competitive to commercial benchmarks.
Dries De Vos, Victoria S. Pfennig, Arno Goddé, Robby Vroemans, Tobias Krückel, Nicole Marcinkowska, Ettore Bartalucci, Thomas Wiegand, Carsten Bolm, Bert U. W. Maes   +9 more
wiley   +2 more sources

O valor social no ensino da enfermagem El valor social en la enseñanza del oficio de la enfermería The social value in nursing education

Escola Anna Nery, 2012
O presente artigo é balizado na Teoria de Valor. A enfermagem possui um conjunto de valores do qual se nutre para elaborar uma escala. OBJETIVO: compreender o valor social no ato de educar do enfermeiro-docente e discuti-lo à luz dos pressupostos de Max ...
Gilberto de Lima Guimarães, Ligia de Oliveira Viana   +1 more
doaj   +1 more source

Aproximación a las representaciones sociales sobre el español de Galicia [PDF]

, 2012
De acuerdo con Blommaert (2005), las lenguas producen significado no solo semántico, sino también social, y ese significado está asociado a una atribución de valor relativo con respecto a unos estándares, normas de corrección y expectativas de uso ...
Recalde Fernández, Montserrat
core   +1 more source

Circular Potential of Lithium‐Ion Battery Recycling Slags: Quantifying Microstructure and Elemental Distribution for a Holistic Valorization

Advanced Science, EarlyView.
A lithium‐bearing slag is investigated with the goal of holistic valorization. The present β‐eucryptite (LiAlSiO4) exhibits a high lithium content and low levels of impurities. The spinel contains most of the chromium and vanadium, representing additional valorization opportunities.
Peter Cornelius Gantz, Charlize Alexia Senkyr, Rüdiger Kilian, Andreas Neumann, Maximilian Korges, Daniel A. Frick, Hans Roggendorf, Ralf Wehrspohn, Stefan Stöber, Christiane Stephan‐Scherb   +9 more
wiley   +1 more source

Dual Chemical Looping/Catalytic Process for Alkylation of Benzene With Ethane and Propane Yielding Ethylbenzene and Cumene Over Copper‐Containing Mordenite

Angewandte Chemie, EarlyView.
We report a dual chemical looping/catalytic process coupling alkane dehydrogenation with aromatic alkylation over Cu‐mordenite, yielding up to 25% alkylated aromatics with >95% selectivity per cycle. In situ NMR, FTIR spectroscopy, and DFT show alkylation proceeds via a π‐bound Cu(I)–olefin intermediate and Brønsted acid sites.
Florent J. Dubray, Yu‐Hsun Wang, Mikalai A. Artsiusheuski, Jiawei Guo, Rene Verel, Ambarish Kulkarni, Jeroen A. van Bokhoven, Vitaly L. Sushkevich   +7 more
wiley   +2 more sources

Las representaciones sociales a bordo del automóvil en Medellín, Colombia [PDF]

, 2019
Beyond their monetary value, private cars have a social value that keeps them in use despite the economic and environmental restrictions upon them.
López Torres, Zulima Azeneth, Vallejo Uribe, Felipe   +1 more
core   +2 more sources

Breaking Down Lignin: A Macromolecule's Path to the Nanoscale

Advanced Energy and Sustainability Research, EarlyView.
This section highlights lignin's critical role as a sustainable, multifunctional precursor for nanomaterial design. Its unique structure and abundance enable the creation of lignin‐based, lignin‐derived, and hybrid nanomaterials with tunable properties. Emphasis is placed on lignin's potential to drive innovation in nanotechnology, offering ecofriendly
Jelena Papan Djaniš, Jan Hočevar, Griša Grigorij Prinčič, Jernej Iskra   +3 more
wiley   +1 more source

Surface‐State–Regulated Product Distribution in Photothermal CO2 Hydrogenation Over MXene‐Based S‐Scheme Catalyst

Angewandte Chemie, EarlyView.
This work establishes an MXene‐based S‐scheme heterojunction in which the cooperative interplay among metallic Ni, surface NiOx domains, and conductive Ti3C2Clx drives efficient charge separation and photothermal coupling. Progressive evolution of Ni surface states regulates the CH4/CH3OH product distribution by modulating interfacial energetics and ...
Dawid D. Kruger, María Cabrero‐Antonino, Silvio Osella, Feiyan Xu, Jiaguo Yu, Ana Primo, Hermenegildo Garcia   +6 more
wiley   +2 more sources

Economic Research Output among the Shanghai Cooperation Organizations (SCO) Countries - A Scientometric Analysis

Inquietud Empresarial
The Shanghai Cooperation Organization (SCO), the political and economic alliance of countries in the Eurasian region, has a significant role in the economic development of its member nations.
vijesh p v, Varghese Joy, Jobin Jose, Saran Murali   +3 more
doaj   +1 more source

Generative Artificial Intelligence Shaping the Future of Agri‐Food Innovation

AgriFood: Journal of Agricultural Products for Food, EarlyView.
Emerging use cases of generative artificial intelligence in agri‐food innovation. ABSTRACT The recent surge in generative artificial intelligence (AI), typified by models such as GPT, diffusion models, and large vision‐language architectures, has begun to influence the agri‐food sector.
Jun‐Li Xu, Dimitrios Argyropoulos, Tamíris da Costa   +2 more
wiley   +1 more source