Results 31 to 40 of about 485,678 (204)

Item parameter estimations for multidimensional graded response model under complex structures

Frontiers in Education, 2022
Item parameter recovery in the compensatory multidimensional graded response model (MGRM) under simple and complex structures with rating-scale item response data was examined.
Olasunkanmi James Kehinde, Shenghai Dai, Brian French   +2 more
doaj   +1 more source

Numerical Investigation on Free Vibration Response of Bi-Directional Porous Functionally Graded Circular/Annular Plates [PDF]

Mechanics of Advanced Composite Structures, 2022
The article presents non-axisymmetric free vibration results of porous bi-directional functionally graded (BDFG) plates. The bi-directional grading index changes with the thickness (z-) and radial (r-) directions and porosity distributions are classified
Dilsukh Vasara, Sumit Khare, Akhilesh Malguri, Rahul Kumar   +3 more
doaj   +1 more source

Consequences of converting graded to action potentials upon neural information coding and energy efficiency [PDF]

, 2014
Information is encoded in neural circuits using both graded and action potentials, converting between them within single neurons and successive processing layers. This conversion is accompanied by information loss and a drop in energy efficiency.
A Borst, A Destexhe, A Hasenstaub, A Manwani, A Manwani, A Treves, AA Lazar, AA Lazar, AA Lazar, AL Hodgkin, AS French, B Aguera y Arcas, B Sengupta, B Sengupta, B Sengupta, B Sengupta, B Sengupta, BA Olshausen, BC Carter, Biswa Sengupta, C Koch, C Koch, C Shannon, CC Chow, D Attwell, D Desmaisons, D Lee, DM MacKay, DT Gillespie, E Marder, E Salinas, E Schneidman, E Skaugen, EM Izhikevich, F Theunissen, FA Dodge Jr, G Laurent, G Marsaglia, GG de Polavieja, H Alle, H Alle, J Haag, JA White, JA White, JC Rekling, JC Skou, JD Victor, JD Victor, JE Niven, JE Niven, JE Niven, JE Niven, JE Niven, Jeremy Edward Niven, K Koch, M Juusola, M Matsumoto, M Pinsker, M Stemmler, MB Kennel, ME Larkum, MH Kole, MN Shadlen, MS Grubb, MV Srinivasan, NJ Lenn, O Bernander, Olaf Sporns, PG Lillywhite, PN Steinmetz, R Guttman, R Sarpeshkar, RA DiCaprio, RRdR van Steveninck, S Curti, S Laughlin, SB Laughlin, Simon Barry Laughlin, SP Strong, SR Williams, TJ Gawne, V Prelov, W Singer, Y Shu, ZF Mainen   +84 more
core   +5 more sources

Evaluating the psychometric properties of the fatigue severity scale using item response theory

BMC Psychology, 2023
Background Fatigue is a common daily experience and a symptom of various disorders. While scholars have discussed the use of the Fatigue Severity Scale (FSS) using item response theory (IRT), the characteristics of the Japanese version are not yet ...
Seiji Muranaka, Haruo Fujino, Osamu Imura   +2 more
doaj   +1 more source

LASSO-Based Pattern Recognition for Replenished Items With Graded Responses in Multidimensional Computerized Adaptive Testing

Frontiers in Psychology, 2022
As a branch of statistical latent variable modeling, multidimensional item response theory (MIRT) plays an important role in psychometrics. Multidimensional graded response model (MGRM) is a key model for the development of multidimensional computerized ...
Jianan Sun, Ziwen Ye, Lu Ren, Jingwen Li
doaj   +1 more source

Adaptive response and enlargement of dynamic range [PDF]

, 2011
Many membrane channels and receptors exhibit adaptive, or desensitized, response to a strong sustained input stimulus, often supported by protein activity-dependent inactivation.
A. Csik\'asz-Nagy, A. Lupas, B. A. Mello, B. N. Kholodenko, B. Wark, C. H. Hansen, E. N. Pugh Jr., G. L. Hazelbauer, J. E. Keymer, J. J. Tyson, K. Ogata, M. Behar, M. J. Tindall, M. N. Levit, N. Barkai, P. Dunten, P. Francois, R. A. Normann, R. B. Bourret, S. A. Simms, S. Asakura, S. Marom, T. C. Terwilliger, T. M. Yi, T.Friedlander, V. Sourjik, W. Ma, Y. Tu   +27 more
core   +1 more source

Nonlinear Vibration of a Functionally Graded Nanobeam Based on the Nonlocal Strain Gradient Theory considering Thickness Effect

Advances in Civil Engineering, 2020
In this work, a nonlocal strain gradient beam model considering the thickness effect is developed to study the nonlinear vibration response of a functionally graded nanobeam.
Dang-Van Hieu, The-Hung Duong, Gia-Phi Bui   +2 more
doaj   +1 more source

A comparison of parameter covariance estimation methods for item response models in an expectation-maximization framework [PDF]

, 2017
The Expectation-Maximization (EM) algorithm is a method for finding the maximum likelihood estimate of a model in the presence of missing data. Unfortunately, EM does not produce a parameter covariance matrix for standard errors.
Pritikin, Joshua N.
core   +2 more sources

An application of item response theory to psychological test development

Psicologia: Reflexão e Crítica, 2016
Item response theory (IRT) has become a popular methodological framework for modeling response data from assessments in education and health; however, its use is not widespread among psychologists. This paper aims to provide a didactic application of IRT
Cristian Zanon, Claudio S. Hutz, Hanwook (Henry) Yoo, Ronald K. Hambleton   +3 more
doaj   +1 more source

Dynamic response of functionally graded plate under harmonic load with variable gradient parameters

Science and Engineering of Composite Materials, 2022
This article used the strip element method to study the dynamics problems of the functionally graded plate with variable gradient parameters under the harmonic loads.
Tian Jianhui, Zhang Hongrui, Sun Jinjuan, Wu Jialiang, Hu Guangchu   +4 more
doaj   +1 more source