Results 51 to 60 of about 116,517 (298)

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Sprint performance following plyometric conditioning activity in elite sprinters

Baltic Journal of Health and Physical Activity
Introduction: Considering the significance of the ankle joint for sprinting with the spring-like properties of the Achilles tendon, it seems that plyometric activating exercises could significantly potentiate maximum velocity sprinting.
Michał KRZYSZTOFIK, Mateusz JOPEK, Dariusz MROCZEK, Aleksander MATUSIŃSKI, Adam ZAJĄC   +4 more
doaj   +1 more source

Linear Decrease in Athletic Performance During the Human Life Span

Frontiers in Physiology, 2018
Master athletes maintain high physical activity levels and have better health than age-matched non-athletes. World records show accelerated declines after age 70 in swimming, long-distance running and sprint performance.
Bergita Ganse, Urs Ganse, Julian Dahl, Hans Degens, Hans Degens   +4 more
doaj   +1 more source

A dynamics and stability framework for avian jumping take-off [PDF]

Royal Society Open Science, 2018
Jumping take-off in birds is an explosive behaviour with the goal of providing a rapid transition from ground to airborne locomotion. An effective jump is predicated on the need to maintain dynamic stability through the acceleration phase.
Ben Parslew, Girupakaran Sivalingam, William Crowther   +2 more
doaj   +1 more source

Supercompliant Lattice Boosts n‐type AgSbTe2 Thermoelectrics

Advanced Functional Materials, EarlyView.
The supercompliant lattice design enables the first realization of n‐type electrical transport in AgSbTe2 by overcoming intrinsic electron‐killer defects and exceeding the doping limits imposed by the conventional Hume–Rothery rule. Accordingly, the best performance n‐type Ag0.8Na0.3Sb0.6Bi0.4Te2 sample achieves a low κ of 0.27 W·m−1·K−1 that ...
Ruoyan Li, Shuai Han, Chunyu Zhang, Suyao Liu, Wen Yin, Yuanguang Xia, Pengfei Liu, Zhen‐Hua Ge, Dongyao Zhao, Bingchao Yang, Lulu Huang, Zhi Zhang, Yongsheng Zhang, Yuan Yu, Bangzhi Ge, Chongjian Zhou   +15 more
wiley   +1 more source

Behaviors of Shelter Dogs During Harnessing and Leash Walks: Prevalence, Demographics, and Length of Stay

Animals
Length of stay is an important metric for animal shelters, and studies have identified physical characteristics of dogs, and some behaviors, that predict length of stay.
Betty McGuire, Bailey Guy, Miles Garland, Alexandra Jackson   +3 more
doaj   +1 more source

Versatile Green Transfer of Magnetoelectronics with Loss‐Free Performance and High Adhesion for Interactive Electronics

Advanced Functional Materials, EarlyView.
An environmentally friendly transfer printing method of nm‐thick giant magnetoresistive (GMR) sensors is demonstrated. This method, relying on water and biocompatible polyvinyl alcohol (PVA) polymer without the need of complex treatments, allows transferring thin films to a wide range of biological, organic, and inorganic substrates.
Olha Bezsmertna, Rui Xu, Eduardo Sergio Oliveros Mata, Stanislav Avdoshenko, Clemens Voigt, Sindy Mosch, Mykola Vinnichenko, Denys Makarov   +7 more
wiley   +1 more source

Sprinters’ and Marathon Runners’ Performances Are Better Explained by Muscle Fibers’ Percentage Cross-Sectional Area than Any Other Parameter of Muscle Fiber Composition

Sports
The present study aimed to investigate the correlation between muscle fiber type variables and sprinting, jumping, strength, power and endurance performances in sprinters and marathon runners.
Spyridon Methenitis, Angeliki-Nikoletta Stasinaki, Thomas Mpampoulis, Constantinos Papadopoulos, Giorgos Papadimas, Nikolaos Zaras, Gerasimos Terzis   +6 more
doaj   +1 more source

Systemic co-jumps [PDF]

Journal of Financial Economics, 2016
Abstract The simultaneous occurrence of jumps in several stocks can be associated with major financial news, triggers short-term predictability in stock returns, is correlated with sudden spikes of the variance risk premium, and determines a persistent increase (decrease) of stock variances and correlations when they come along with bad (good) news ...
CAPORIN, MASSIMILIANO, Kolokolov, Aleksey, Renò, Roberto   +2 more
openaire   +6 more sources

Single‐Step Conversion of Metal Impurities in CNTs to Electroactive Metallic Nitride Nanoclusters for Electrochemical CO2 Reduction

Advanced Functional Materials, EarlyView.
A single‐step, low‐temperature co‐pyrolysis process removes encapsulated seed metal NPs (10–50 nm) from CNTs, redistributing them as surface‐anchored metal and metal–nitride NCs (1–1.5 nm). Herein, Ni3N NCs achieve an ultra‐low onset overpotential for CO2 reduction to CO with >98% Faradaic efficiency across 100–700 mA cm−2.
Ahmed Badreldin, John Pellessier, Francisco Alejandro Ospina Acevedo, Siyuan Fang, Carter Racine, Jin Feng, Alvin Chang, Yulu Ge, Yang Gang, Shengyao Wang, Xiaokun Yang, Sergei Ivanov, Zhenxing Feng, Yun Hang Hu, Perla B. Balbuena, Ying Li   +15 more
wiley   +1 more source