Results 131 to 140 of about 4,407,326 (257)
Analysis of differential item functioning in translated assessment instruments
, 1995 The usefulness of three IRT-based methods and the Mantel-Haenszel technique in evaluating the measurement equivalence of translated assessment instruments was investigated.
Budgell, Glen R. +5 more
core +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
The impact of differential item functioning on the Warwick-Edinburgh Mental Well-Being Scale
, 2018 Establishing the internal validity of psychometric instruments is an important research priority, and is especially vital for instruments that are used to collect data to guide public policy decisions.
Marais, Ida +2 more
core
FEBS Letters, EarlyView.Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
wiley +1 more source
Çukurova Üniversitesi Tıp Fakültesi Dergisi, 2014 Purpose: Current study investigated whether the measurement tools utilized during medical faculty preclinical period to form the basis of pass-fail decisions taken for students included Differential Item Functioning for foreign and Turkish students ...
Huseyin Selvi +2 more
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RNA‐related functions of BRCA2 in transcription, replication, and genome stability
FEBS Letters, EarlyView.Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda +2 more
wiley +1 more source
Psychological and educational instruments are routinely used to compare individuals across sex, age, language, culture, educational background, geographical location and clinical status. Yet an apparently neutral item may function differently for individuals who possess the same underlying level of the construct being measured. This phenomenon is known
openaire +3 more sources
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Investigation of Equating Error in Tests with Differential Item Functioning
International Journal of Assessment Tools in Education, 2017 In this study purposes to indicate the effect of the number of DIF items and the distribution of DIF items in these forms, which be equalized on equating error.
Meltem Yurtçu, Cem Oktay Güzeller
doaj