Results 71 to 80 of about 846,844 (292)

Interfacially Coupled and Synergistic Effect of Ag/Co3O4‐C Nanocomposites for Enhanced Oxygen Reduction (ORR) and Evolution (OER) Reaction

Advanced Science, EarlyView.
Ag/Co3O4–C nanocomposites display well‐resolved lattice fringes and synergistic Ag/Co3O4 heterointerfaces that enhance charge transfer and active‐site exposure. The structural design enables superior bifunctional ORR/OER performance in alkaline media by promoting efficient adsorption and turnover of oxygen intermediates within an optimized ...
Adnan Qaseem, Fuyi Chen, Arslan Shabbir, Mohsin Saleem, Jung Hyuk Koh, Muhammad Zubair Khan, Imran Shakir, Muhammad Talha Masood, Kanagat Kishibayev   +8 more
wiley   +1 more source

Tiempo de reacción y acción visual en laboratorio y campo, en atletas de Karate y Taekwondo

Educación Física y Deporte, 2020
El objetivo de esta investigación fue correlacionar el tiempo de reacción (TR) y el tiempo de acción (TA) de pruebas de laboratorio y de campo en karatecas y taekwondokas. Se evaluaron 50 deportistas con al menos un año de experiencia deportiva.
Gustavo Ramón Suárez, Jorge Jaime Márquez Arabia   +1 more
doaj   +1 more source

Organic Agriculture in Saudi Arabia - Sector Study 2012 [PDF]

, 2012
This publication compiles the facts and figures of the organic sector in Saudi Arabia. It is a valuable resource for local stakeholders and interested trading companies. The publication is resulting from a collaboration between GIZ (Deutsche Gesellschaft
Al Ghamdi, Ayman, Bernet, Thomas, Hartmann, Marco, Khalil, Saad, Ruhland, Felix   +4 more
core  

Structural and Mechanical Dynamics of Polymer Membranes Across Multilength Scales

Advanced Science, EarlyView.
Distinct surface‐to‐bulk mechanical contrasts in polymer membranes were unveiled, highlighting the need to probe both regions to fully capture their functional behavior. By integrating in situ SAXS–WAXS with AFM‐based nanomechanics, nanodomain‐level heterogeneity and real‐time structural transformations induced by thermal and mechanical stimuli were ...
Rifan Hardian, Hakkim Vovusha, Yue Yuan, Changxia Shi, Eugene Y.‐X. Chen, Mario Lanza, Gyorgy Szekely   +6 more
wiley   +1 more source

Whalesong [PDF]

, 1982
Student government leaders chosen -- UAJ could become more important resource if capital moves -- Calendar -- Lecture season is underway -- Comment -- Staff -- The campus beat -- Letters -- Comment -- UAJ established as statewide center -- Sports ...

core  

Delocalized Charge Transport in Thermoelectric Composites of Semiconducting Carbon Nanotubes Wrapped with a P‐Type Polymer

Advanced Electronic Materials, EarlyView.
Composites made of semiconducting carbon nanotubes and p‐type polymers, when adequately doped with molecular dopants, can exhibit highly delocalized charge carrier transport, showing high thermoelectric performances. The efficient charge delocalization is enabled by the reduced coulombic binding energy at high carrier concentration and the small ...
Ye Liu, Wenchao Yang, Anirudh Sharma, Diego Rosas‐Villalva, Han Xu, Md Azimul Haque, Frédéric Laquai, Derya Baran   +7 more
wiley   +1 more source

Is a Mechanic Prosthetic Valve in Tricuspid Position an Absolute Impediment to Implant a Definitive Electrode in the Right Ventricle?

Journal of Cardiac Arrhythmias, 2020
This is the case of a middle-aged woman with Ebstein anomaly, who had a tricuspid valve replacement with a mechanic Starr-Edwards caged-ball valve many years ago, and needed an implantable cardioverter defibrillator (ICD) and ventricular pacing due to ...
Luis Antonio Arabia, Juan Carlos Luciano   +1 more
doaj   +4 more sources

Evicted: A Retrospective Look at the Recent Outbreak of Occupy Initiatives in Puerto Rico

Iberoamericana: Nordic Journal of Latin American and Caribbean Studies
In roughly a decade, Puerto Rico has experienced a dramatic transition marked by neoliberal policies and extreme natural events. Coupled with a housing crisis that began to worsen after the crash of 2008, a huge inventory of abandoned properties began to
Marina Moscoso Arabía
doaj   +1 more source

Saudi SCD patients’ symptoms and quality of life relative to the number of ED visits [PDF]

, 2016
Background Individuals living with sickle cell disease (SCD) have significantly increased emergency department (ED) use compared to the general population. In Saudi Arabia, health care is free for all individuals and therefore has no bearing on increased
Ahmed, Anwar E., Al-Suliman, Ahmad M., Alaskar, Ahmed S., Aldughither, Mohammed H., Ali, Yosra Z., Malhan, Hafiz M., McClish, Donna K.   +6 more
core   +2 more sources

Effect of Regiochemistry on Doping and Thermoelectric Properties of n‐Doped Fullerene Derivatives

Advanced Electronic Materials, EarlyView.
Three fullerene derivatives doubly substituted with diethylene glycol chains (PDEG‐2) is presented. The different regiochemistry significantly affects the crystallinity and consequently the dielectric properties, electronic transport, and doping efficiency. By striking a balance between compatibility with the molecular dopant N‐DMBI and crystallinity a
Federico Ferrari, Sylvia Rousseva, Diego Rosas Villalva, Ewout Kessels, Jan C. Hummelen, Derya Baran, Ryan Chiechi, L. Jan Anton Koster   +7 more
wiley   +1 more source