Results 101 to 110 of about 183,916 (268)
The dif/Xer recombination systems in proteobacteria. [PDF]
, 2009 In E. coli, 10 to 15% of growing bacteria produce dimeric chromosomes during DNA replication. These dimers are resolved by XerC and XerD, two tyrosine recombinases that target the 28-nucleotide motif (dif) associated with the chromosome's replication ...
Carnoy Christophe +3 more
core +1 more source
Differential item functioning detection across multiple groups
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract Differential item functioning (DIF) can be investigated by estimating item response theory (IRT) parameters separately for different respondent groups, thus allowing for the detection of discrepancies in parameter estimates across groups. However, before comparing the estimates, it is necessary to convert them to a common metric due to the ...
Michela Battauz
wiley +1 more source
Using multilabel classification neural network to detect intersectional DIF with small sample sizes
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract This study introduces InterDIFNet, a multilabel classification neural network for detecting intersectional differential item functioning (DIF) in educational and psychological assessments, with a focus on small sample sizes. Unlike traditional marginal DIF methods, which often fail to capture the effects of intersecting identities and require ...
Yale Quan, Chun Wang
wiley +1 more source
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract Although full‐information maximum likelihood (FIML) estimation is widely used for diagnostic classification models (DCMs), its computational efficiency deteriorates sharply in high‐dimensional settings. This scalability challenge is increasingly critical as DCMs are applied to large‐scale assessments, psychological testing and longitudinal ...
Minho Lee, Yon Soo Suh
wiley +1 more source
Microscopic predictions of fission yields based on the time dependent GCM formalism
EPJ Web of Conferences, 2016 Accurate knowledge of fission fragment yields is an essential ingredient of numerous applications ranging from the formation of elements in the r-process to fuel cycle optimization in nuclear energy.
Regnier D. +3 more
doaj +1 more source
, 2020 This app allows users to implement an approach to differential item functioning (DIF) described in Chapter 15 of McDonald (1999). The app runs in an Excel spreadsheet and requires as input the results of separate confirmatory factor analyses of a ...
Gideon P. de Bruin +1 more
core +1 more source
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract Differential Item Functioning (DIF) analysis is used to identify potentially biased items in multi‐item measurements. In addition to testing the statistical significance, it is essential to evaluate the practical significance of DIF through effect size measures.
Michaela Cichrová +2 more
wiley +1 more source
Cancer Science, EarlyView.AI‐based spatial analysis of tumor‐infiltrating lymphocytes in ovarian cancer revealed the highest infiltration in high‐grade serous carcinoma. Integrating pathology‐based immune phenotypes with HRD status provided additional prognostic insight and highlighted distinct relationships between TILs and genomic structure.
Kohei Hamada +17 more
wiley +1 more source
Clinical &Experimental Ophthalmology, EarlyView.ABSTRACT Background To determine whether axial length‐related magnification correction in optical coherence tomography angiography (OCTA) improves machine learning classification of high myopia and resolves inconsistencies in the values and discriminatory power of OCTA microvascular metrics.
Danuta M. Sampson +9 more
wiley +1 more source
Academic Discipline DIF in an English Language Proficiency Test [PDF]
Journal of English Language Teaching and Learning, 2012 The purpose of this study was to detect differentially functioning items in the University of Tehran English Proficiency Test (UTEPT) which is a high stake test of English developed and administered by the Language Testing Centre of the University of ...
Seyyed Mohammad Alavi +2 more
doaj