Results 121 to 130 of about 332,487 (304)

Oxygen Evolution Electrocatalysts with Trinuclear, Mixed‐Valence Iron Motifs on Electronically Aligned Carbon Dots

Advanced Functional Materials, EarlyView.
Trinuclear iron oxo‐bridged catalytic ensembles stabilized by aspartic‐acid‐derived carbon dots provide an effective platform for alkaline oxygen evolution. Mixed‐valence charge balancing, inner‐sphere charge transport, and work‐function alignment within the N/O‐rich carbon framework promote cooperative Fe‐site chemistry and efficient OER ...
Megha A. Deshmukh, Giorgio Zoppellaro, Emiliano Fonda, Lukáš Zdražil, Shounik Paul, David Panáček, Hanuman Thorat, Zdeněk Badura, Michele Melchionna, Manuela Bevilacqua, Paolo Fornasiero, Klaus Müllen, Radek Zbořil, Aristides Bakandritsos   +13 more
wiley   +1 more source

Emotion Regulation Strategies and Social Media Addiction: Gender-Specific Pathways Through Social Anxiety and Depression in Youth

Human Behavior and Emerging Technologies
The increasing prevalence of social media addiction (SMA) among adolescents poses significant challenges for mental health, highlighting the need for effective prevention and intervention strategies.
Lucia Monacis, Daiana Colledani, Claudia Mortali, Pasquale Anselmi, Luis J. Gomez Perez, Bruno Genetti, Daniele Fassinato, Luisa Mastrobattista, Adele Minutillo   +8 more
doaj   +1 more source

Detecting Doping in Sport

, 2017
[Extract] This is a book about the detection of doping in sport. A recurring theme in this book is that the detection of doping has hitherto been conducted in ways that effectively ensure that doping will not be detected.
Engelberg, Terry, Moston, Stephen
core  

Unexpected Asymmetric Mn‐Sb Site Mixing and Reentrant Spin‐Glass State of MnSb2Te4

Advanced Functional Materials, EarlyView.
MnSb2Te4 is an intrinsic magnetic topological insulator. Its properties are extraordinarily sensitive to tiny defects, making structural studies essential for understanding how magnetism and topology work together. This work shows that Mn can be unevenly distributed within the crystal and how that disorder is linked to a newly reported spin‐glass state
Gustavo Chavez Ponce de Leon, Ahmad Dibajeh, Gert ten Brink, Majid Ahmadi, Suyang Sun, Wei Zhang, Bart Jan Kooi, George Palasantzas   +7 more
wiley   +1 more source

Associations between the performance of vertical jump and accelerative sprint in elite sprinters

Frontiers in Bioengineering and Biotechnology
ObjectiveThe purpose of this study is to investigate the relationship between components of the Sprint Profile during acceleration and kinematic and kinetic measures of the Counter Movement Jump (CMJ) and Squat Jump (SJ), to determine whether jump ...
Junliang He, Ming Li, Qiuping Zhang, Zhiye Zhang   +3 more
doaj   +1 more source

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

Advanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha, Chaohao Chen, Zhe Li, Tuomas Haggren, Dawei Liu, Yang Yu, Baolei Liu, Sanjay Krishna, Hark H. Tan, Chennupati Jagadish, Lan Fu   +10 more
wiley   +1 more source

Down the greasy slope: the fatal contradictions of anti-doping

 This article seeks to critically question the internal logic and coherence of ‘anti-doping’ through the case study of advantage-seeking practices in the sport of Brazilian Jui-Jitsu (BJJ).
Timothy Piatkowski (18153309), Nick Gibbs (17248927), Luke Turnock (17168983)   +2 more
core   +3 more sources

Introduction : Doping and Public Health

, 2016
The concept of “doping” is usually associated with sport, particularly elite sport. In fact, doping means the use of substances or methods that are banned in sport by the World Anti-Doping Agency (WADA) because of their potentially performance-enhancing ...
Ahmadi, Nader,, Svedsäter, Göran,, Ljungqvist, Arne   +2 more
core  

Multidimensional‐Encoded High‐Fidelity Spectrometers With a Floating‐Base Bipolar Junction

Advanced Functional Materials, EarlyView.
A floating‐base bipolar junction photodetector enables multidimensional spectral encoding through synergistic gate‐ and drain‐bias modulation of interfacial barrier matching. The resulting complementary spectral responses form a diverse, weakly correlated response matrix, enabling robust and high‐fidelity spectral reconstruction even at sub‐nanoampere ...
Sang‐Hyeon Lee, Junho Min, Yonas Tsegaye Megra, Min‐Hye Jeong, Hwi Je Woo, Jaewon Han, Junheon Ha, Gyunghyun Jang, Young Jae Song, Hyun‐Soo Ra, Hoon Hahn Yoon, Jong‐Soo Lee   +11 more
wiley   +1 more source

Insulating‐Passivating Interfaces for Narrow‐Bandgap Tin‐Lead Perovskites Enable High‐Photovoltage in Single‐ and Double‐Junction Solar Cells

Advanced Functional Materials, EarlyView.
Combining field‐effect surface passivation of a narrow‐bandgap tin–lead perovskite by diammonium ions with introducing oleyl‐based amphiphiles to create insulating interface layers between the absorber and the adjacent hole and electron transporting layers increases the open‐circuit voltage to 91.5% of the detailed‐balance limit and enhances the power ...
Vishnu Vijayakumar, Christ H. L. Weijtens, Laura Bellini, Nick R. M. Schipper, Isabella Taupitz, Maxim Simmonds, Johannes C. Lambooij, Anuja Vijayan, Lana M. Kessels, Simon V. Quiroz Monnens, Guus J. W. Aalbers, Willemijn H. M. Remmerswaal, Stefan C. J. Meskers, Shuaifeng Hu, Junke Wang, Martijn M. Wienk, Henry J. Snaith, Steve Albrecht, René A. J. Janssen   +18 more
wiley   +1 more source