Results 51 to 60 of about 21,807,131 (299)

SNSequate: Standard and Nonstandard Statistical Models and Methods for Test Equating

Journal of Statistical Software, 2014
Equating is a family of statistical models and methods that are used to adjust scores on two or more versions of a test, so that the scores from different tests may be used interchangeably.
Jorge González
doaj   +1 more source

Effect of motorcycle helmet types on head injuries: evidence from eight level-I trauma centres in Taiwan

BMC Public Health, 2020
Background Motorcycle full-coverage helmet use may reduce fatalities and head injuries. Methods This retrospective cohort study extracted injury data from eight level-I trauma centres in Taiwan and performed a questionnaire survey to investigate injuries
Carlos Lam, Bayu Satria Wiratama, Wen-Han Chang, Ping-Ling Chen, Wen-Ta Chiu, Wafaa Saleh, Chih-Wei Pai   +6 more
doaj   +1 more source

Customizable Fabrication of 2D and Conformal Multielectrode Arrays for 3D Printed Organotypic Bioelectronic Interfaces

Advanced Healthcare Materials, EarlyView.
Aerosol jet printing enables rapid, customizable fabrication of flexible, fully gold multi‐electrode arrays (MEAs) for organotypic bioelectronic interfaces. The printed MEAs exhibit stable electrochemical performance, cytocompatibility, and functionality in recording and stimulation, including integration with 3D‐printed constructs.
Ernest Cheah, Xinchao Gao, Wei Qi Jaw, Guo Liang Goh, Jia Min Lee, Chongquan Huang, Sing Yian Chew, Wai Yee Yeong   +7 more
wiley   +1 more source

Numerical treatment for a novel crossover mathematical model of the COVID-19 epidemic

AIMS Mathematics
This paper extends a novel piecewise mathematical model of the COVID-19 epidemic using fractional and variable-order differential equations and fractional stochastic derivatives in three intervals of time.
Fawaz K. Alalhareth, Seham M. Al-Mekhlafi, Ahmed Boudaoui , Noura Laksaci , Mohammed H. Alharbi   +4 more
doaj   +1 more source

Stochastic Analysis of Nonlinear Cancer Disease Model through Virotherapy and Computational Methods

Mathematics, 2022
Cancer is a common term for many diseases that can affect anybody. A worldwide leading cause of death is cancer, according to the World Health Organization (WHO) report. In 2020, ten million people died from cancer.
Ali Raza, Jan Awrejcewicz, Muhammad Rafiq, Nauman Ahmed, Muhammad Mohsin   +4 more
doaj   +1 more source

Symmetries and exact solutions of some integrable Haldane-Shastry like spin chains

, 1998
By using a class of `anyon like' representations of permutation algebra, which pick up nontrivial phase factors while interchanging the spins of two lattice sites, we construct some integrable variants of $SU(M)$ Haldane-Shastry (HS) spin chain.
Albertini, Alcaraz, Azuma, B. Basu-Mallick, Basu-Mallick, Basu-Mallick, Basu-Mallick, Basu-Mallick, Bernard, Calogero, Chari, Drinfeld, Frahm, Fukui, Gwa, Ha, Ha, Ha, Haldane, Haldane, Haldane, Hikami, Hikami, Kawakami, Lesage, Majid, Majid, Murthy, Olshanetsky, Perk, Polychronakos, Shastry, Simons, Stone, Sutherland, Sutherland, Sutherland, Ujino, Ujino, Yang   +39 more
core   +2 more sources

Magnetic Flux Guides by Material Extrusion

Advanced Science, EarlyView.
Magnetic flux guidance can increase inductive coupling and forces for magnetic sensors, actuators, and transducers. Here, a magnetic material extrusion method is used to fabricate flux concentration structures of arbitrary shapes with a magnetic permeability of 42. In line with simulation analysis, experimental results show that these materials provide
Jorge Cañada, Steven W. Wright, Michail E. Kiziroglou, Eric M. Yeatman, Luis F. Velásquez‐García   +4 more
wiley   +1 more source

Mothers’ Nonstandard Work Schedules, Economic Hardship, and Children’s Outcomes

Socius
The authors investigate the moderating role of three dimensions of economic hardship on the relationship between maternal nonstandard work schedules (working evening, nights, or weekends) and children’s behavioral and cognitive outcomes at age five in ...
Afshin Zilanawala, Anika Schenck-Fontaine   +1 more
doaj   +1 more source

Crossover dynamics of climate change models: Numerical simulations

Alexandria Engineering Journal, 2023
In this paper, two new climate change mathematical models are extended using the stochastic-deterministic piecewise hybrid fractional derivatives, where the hybrid fractional order operator is applied to extend the deterministic model and the fractional ...
N.H. Sweilam, S.M. AL-Mekhlafi, S.M. Hassan, N.R. Alsunaideh, A.E. Radwan   +4 more
doaj   +1 more source

Beyond Silicon: Toward Sustainable, NIR‐II, and Conformable Organic Photodiodes

Advanced Energy Materials, EarlyView.
In this perspective, a strategic shift in organic photodetector (OPD) research is proposed: instead of the incremental advances in silicon's stronghold arena, the most impactful future for OPDs lies in addressing silicon's intrinsic limitations, i.e., detection in the longer wavelength range above silicon's coverage (>1100 nm, termed as near infrared ...
Hrisheekesh Thachoth Chandran, Jiaming Huang, Hao Xia, Rakesh Rajendran Nair, Shen Xing, Gang Li, Karl Leo, Johannes Benduhn   +7 more
wiley   +1 more source