Results 1 to 10 of about 44,820 (294)

Initial Evaluation of Prospective and Parallel Assessments of Cystic Fibrosis Newborn Screening Protocols in Eastern Andalusia: IRT/IRT versus IRT/PAP/IRT [PDF]

International Journal of Neonatal Screening, 2019
Identifying newborns at risk for cystic fibrosis (CF) by newborn screening (NBS) using dried blood spot (DBS) specimens provides an opportunity for presymptomatic detection. All NBS strategies for CF begin with measuring immunoreactive trypsinogen (IRT).
Raquel Yahyaoui, Javier Pérez-Frias, VÍCTOR Manuel Navas-Lopez   +2 more
exaly   +7 more sources

Neonatal screening for cystic fibrosis: Comparing the performances of IRT/DNA and IRT/PAP [PDF]

Journal of Cystic Fibrosis, 2014
French health authorities promoted a study on 553,167 newborns comparing the performances of IRT/DNA and IRT/PAP for CF newborn screening.In parallel to IRT/DNA, PAP was assayed in newborns with IRT>50 μg/L.
Roch Giorgi, Anne Munck, Jean-Charles Dagorn   +2 more
exaly   +5 more sources

Using Projective IRT to Evaluate the Effects of Multidimensionality on Unidimensional IRT Model Parameters

Multivariate Behavioral Research
The application of unidimensional IRT models requires item response data to be unidimensional. Often, however, item response data contain a dominant dimension, as well as one or more nuisance dimensions caused by content clusters. Applying a unidimensional IRT model to multidimensional data causes violations of local independence, which can vitiate IRT
Maxwell Mansolf, Benjamin Schalet, Steven P Reise   +2 more
exaly   +4 more sources

Calculation of fuel burnup and radionuclide inventory for the HEU and potential LEU fuels in the IRT research reactor

Results in Physics, 2018
The study of core conversion of the IRT research reactor from the HEU to LEU fuels has been conducted in this paper. Fuel burnup, buildup of actinides and fission product inventory for the IRT research reactor with UO2-Al dispersion fuel for the various ...
G Saba, S Dawahra, K Khattab
exaly   +3 more sources

22 IRT/IRT vs. IRT/PAP. Which is the best strategy? A pilot study [PDF]

Journal of Cystic Fibrosis, 2014
Background: Benefits of early Cystic Fibrosis (CF) detection using newborn screening (NBS) lead to widespread use in NBS programs. Since 2002, a two-stage immunoreactive trypsinogen (IRT/IRT) screening strategy has been used as CFNBS method in all public maternities in the City of Buenos Aires, Argentina. However, novel screening strategies may be more
Teper, A., Rodriguez, V., Zaragoza, S., Lubovich, S., Aranda, C., Muntaabski, P.   +5 more
  +7 more sources

Titanium alloy Ti-6242 for high temperature structural application. Static and dynamic mechanical properties and impact of ageing [PDF]

MATEC Web of Conferences, 2020
Increasing the efficiency of aero-engines by increasing the engines’ working temperatures requires, in turn, the adaptation of the materials used in structural parts surrounding the engines.
MAX Bertrand, ALEXIS Joël, LARIGNON Céline, PERUSIN Simon   +3 more
doaj   +1 more source

Adaptation of Short-Term Cloud Forecasting to Global Scale and Evaluation of its Contribution to Earth Observing Satellite Planning

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
A short-term cloud forecasting method based on optical flows is used in order to increase the number of cloud free images acquired at the end of an Earth observation satellites planning process.
Guillaume Roussel, Mathieu Turpin, Yves Bardout, Guillaume Jubelin   +3 more
doaj   +1 more source

Visualizing Items and Measures: An Overview and Demonstration of the Kernel Smoothing Item Response Theory Technique [PDF]

Tutorials in Quantitative Methods for Psychology, 2020
The current demonstration was conducted to familiarize a broader audience of applied researchers in psychology and social sciences with the benefits of an exploratory psychometric technique -- kernel smoothing item response theory (KSIRT). A data-driven,
Rajlic, Gordana
doaj   +1 more source

A Dyadic IRT Model

Psychometrika, 2020
We propose a dyadic Item Response Theory (dIRT) model for measuring interactions of pairs of individuals when the responses to items represent the actions (or behaviors, perceptions, etc.) of each individual (actor) made within the context of a dyad formed with another individual (partner).
Brian Gin, Nicholas Sim, Anders Skrondal, Sophia Rabe-Hesketh   +3 more
openaire   +8 more sources

Applying a two-parameter item response model to explore the psychometric properties: The case of the ministry of Science, Research and Technology (MSRT) high-stakes English Language Proficiency test [PDF]

Journal of English Language Teaching and Learning, 2022
Perhaps the degree of test difficulty is one of the most significant characteristics of a test. However, no empirical research on the difficulty of the MSRT test has been carried out.
Shahram Ghahraki, Manssor Tavakoli, Saeed Ketabi   +2 more
doaj   +1 more source