Results 81 to 90 of about 3,462,089 (291)

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

FEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

Unbiased Analysis of Item-Specific Multi-Voxel Activation Patterns Across Learning

Frontiers in Neuroscience, 2018
Recent work has highlighted that multi-voxel pattern analysis (MVPA) can be severely biased when BOLD response estimation involves systematic imbalance in model regressor correlations.
Hannes Ruge, Eric Legler, Theo A. J. Schäfer, Katharina Zwosta, Uta Wolfensteller, Holger Mohr   +5 more
doaj   +1 more source

The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries

Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, 2020
Introduction To understand the potential influence of diversity on the measurement of functional impairment in dementia, we aimed to investigate possible bias caused by age, gender, education, and cultural differences. Methods A total of 3571 individuals
Mark A. Dubbelman, Merike Verrijp, David Facal, Gonzalo Sánchez‐Benavides, Laura J.E. Brown, Wiesje M. vander Flier, Hanna Jokinen, Athene Lee, Iracema Leroi, Cristina Lojo‐Seoane, Vuk Milošević, José Luís Molinuevo, Arturo X. Pereiro Rozas, Craig Ritchie, Stephen Salloway, Gemma Stringer, Stelios Zygouris, Bruno Dubois, Stéphane Epelbaum, Philip Scheltens, Sietske A.M. Sikkes   +20 more
doaj   +1 more source

Item bias on the geriatric depression scale (GDS): investigating the quality and generalizability of GDS on Chinese and Korean community-dwelling elderly population. [PDF]

BMC Geriatr, 2021
Park IH, Sya'bandari Y, Liu Y.
europepmc   +1 more source

lordif: An R Package for Detecting Differential Item Functioning Using Iterative Hybrid Ordinal Logistic Regression/Item Response Theory and Monte Carlo Simulations [PDF]

Logistic regression provides a flexible framework for detecting various types of differential item functioning (DIF). Previous efforts extended the framework by using item response theory (IRT) based trait scores, and by employing an iterative process ...
Seung W. Choi, Laura E. Gibbons, Paul K. Crane   +2 more
core  

Item bias across person factors.

, 2019
Item bias across person factors.
Evi Ningrum (6577160), Sue Evans (3853255), Sze-Ee Soh (3448520)   +2 more
core   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Automated Parallel Test Forms Assembly Using Integer Programming With Logistic Item Exposure Penalties to Balance the Number of Test Forms While Minimizing Item Exposure Bias

IEEE Access
Recent studies have explored several techniques using AI technologies to assemble numerous parallel test forms, for which each form has equivalent measurement accuracy but each has a different set of items from the item pool.
Kazuma Fuchimoto, Maomi Ueno
doaj   +1 more source

Studi Tentang Dampak Dari Multidimensionalitas Butir Soal Terhadap Estimasi True Skor Dengan Pendekatan Model Bifaktor

Jurnal Pengukuran Psikologi dan Pendidikan Indonesia, 2019
Penelitian ini merupakan penelitian simulasi dimana yang menjadi fokus dalam penelitian ini adalah banyaknya faktor, item dan responden dengan replikasi 50 kali.
Nursakinah Oktaviana Sasmita
doaj   +1 more source

A new method for detecting differential item functioning in the Rasch model [PDF]

, 2010
Differential item functioning (DIF) can lead to an unfair advantage or disadvantage for certain subgroups in educational and psychological testing. Therefore, a variety of statistical methods has been suggested for detecting DIF in the Rasch model.
Zeileis, Achim, Kopf, Julia, Strobl, Carolin   +2 more
core   +1 more source