Results 91 to 100 of about 230,628 (307)

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Funcionamento diferencial dos itens do Teste Cloze por Opção

Arquivos Brasileiros de Psicologia, 2011
This study analyzed the differential item functioning of Teste Cloze por Opção EM/U that assess collectively reading comprehension. The subjects were 489 students.
Maria Cristina Rodrigues Azevedo Joly, Nayane Martoni Piovezan   +1 more
doaj  

Measurement Comparability of Reading in the English and French Canadian Populations: Special Case of the 2011 Progress in International Reading Literacy Study

Frontiers in Education, 2019
The purpose of this study is to examine item equivalence and score comparability of the Progress in International Reading Literacy Study (PIRLS) 2011 for the Canadian French and English language groups.
Shawna Goodrich, Kadriye Ercikan
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Examination of differential item functioning in PISA through univariate and multivariate matching differential item functioning

International Journal of Assessment Tools in Education
The present research aims to examine whether the questions in the Program for the International Student Assessment (PISA) 2009 reading literacy instrument display differential item functioning (DIF) among the Turkish, French, and American samples based ...
Nizamettin Koç, Ahmet Yıldırım
doaj  

Investigating the Impact of Item Parameter Drift for Item Response Theory Models with Mixture Distributions

Frontiers in Psychology, 2016
This study investigates the impact of item parameter drift (IPD) on parameter and ability estimation when the underlying measurement model fits a mixture distribution, thereby violating the item invariance property of unidimensional item response theory (
Yoon Soo ePark, Young-Sun eLee, Kuan eXing   +2 more
doaj   +1 more source

A meta-analysis of the Mantel-Haenszel procedure in the detection of DIF in dichotomous items [PDF]

, 2007
d de Murcia El objetivo del presente estudio consiste en describir el estado actualde la investigación sobre la eficacia del procedimiento Mantel-Haenszel(MH) como técnica de detección del Funcionamiento Diferencial del Ítem(Differential Item ...
Guilera, Georgina, Gómez Benito, Juana, Hidalgo Montesinos, Maria Dolores, Sánchez Meca, Julio   +3 more
core   +1 more source

Gender Fairness within the Force Concept Inventory [PDF]

, 2017
Research on the test structure of the Force Concept Inventory (FCI) has largely ignored gender, and research on FCI gender effects (often reported as "gender gaps") has seldom interrogated the structure of the test.
Henderson, Rachel, Lindell, Rebecca, Papak, Alexis, Stewart, Gay, Stewart, John, Traxler, Adrienne   +5 more
core   +5 more sources

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Determining Gender Differential Item Functioning for Mathematics in Coeducational School Culture

Malaysian Journal of Learning and Instruction, 2019
Purpose - In an attempt to explore item characteristics that behave differently between boys and girls, this comparative study examines gender Differential Item Functioning in a school culture that is noted to be ‘thriving’ mathematically ...
S. Kanageswari Suppiah Shanmugam
doaj   +1 more source