Results 61 to 70 of about 2,195,556 (319)
Stress analysis of crack characteristic of anthracite under dynamic loading
Deep Underground Science and Engineering, EarlyView.In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai +5 more
wiley +1 more source
Metastable water at several compression rates and its freezing kinetics into ice VII
Nature CommunicationsWater can be dynamically over-compressed well into the stability field of ice VII. Whether water then transforms into ice VII, vitreous ice or a metastable novel crystalline phase remained uncertain.
Charles M. Pépin +7 more
doaj +1 more source
International Journal of Assessment Tools in Education, 2017 This study intended to investigate theoperations of various theory-based Differential Item Functioning (DIF) methodsunder different scoring situations.
Hüseyin Selvi, Devrim Alıcı
doaj +1 more source
International Journal of Eating Disorders, EarlyView.ABSTRACT Objective Anorexia nervosa (AN) is a severe psychiatric disorder with structural brain alterations; however, the roles of cortical surface area (CSA) and cortical thickness (CTh) during adolescence remain unclear. Building on frequent reports of gray matter reductions in the cingulate cortex and precuneus, this study assesses CSA, CTh, and ...
Irina Jarvers +11 more
wiley +1 more source
The application of the Generalized Lord’s Chi-Square method in identifying biased items
Jurnal Penelitian dan Evaluasi Pendidikan, 2019 This study aims to find out the results of the analysis of item bias by using Generalized Lord's Chi-square test method on the test instrument of elementary school examination in a sub-district of Gowa Regency, Indonesia.
Herwin Herwin, Sophak Phonn
doaj +1 more source
Rational Polygons as Rotation Sets of Generic Homeomorphisms of the Two-Torus [PDF]
, 2012 We prove the existence of an open and dense set D\subset? Homeo0(T2) (set of toral homeomorphisms homotopic to the identity) such that the rotation set of any element in D is a rational polygon.
Passeggi, Alejandro
core +1 more source
DIF Statistical Inference without Knowing Anchoring Items [PDF]
, 2021 Yunxiao Chen +3 more
openalex +1 more source
Soft Power in Trade: Quantifying the Impact of Confucius Institutes on China's Exports
International Studies of Economics, EarlyView.ABSTRACT This paper investigates the role of Confucius Institutes (CIs) as a form of China's cultural diplomacy and their impact on international trade, particularly exports. Using a gravity model, we analyze data from 1990 to 2019 across countries, finding that the presence of CIs significantly boosts China's exports.
Renjing Chen, Wei Jin, Tangrui Yang
wiley +1 more source
EPJ Web of Conferences, 2017 Direct inelastic scattering to discrete excitations and pre-equilibrium emission are described within a microscopic model. Nuclear structure information are obtained in the (Quasi) Random Phase Approximation ((Q)RPA) framework implemented with the Gogny ...
Dupuis M. +6 more
doaj +1 more source
Performance differences by gender in English reading test
Jurnal Penelitian dan Evaluasi Pendidikan, 2020 Test fairness becomes an aspect that needs to be considered when developing a test instrument. It is highly recommended that the instrument should not be biased for the test takers by ensuring that they do not behave differently among male and female ...
Ari Arifin Danuwijaya, Adiyo Roebianto
doaj +1 more source