Results 1 to 10 of about 2,195,556 (319)
Dif-in-Dif Estimators of Multiplicative Treatment Effects [PDF]
Journal of Econometric Methods, 2014 Abstract We consider a difference-in-differences setting with a continuous outcome. The standard practice is to take its logarithm and then interpret the results as an approximation of the multiplicative treatment effect on the original outcome. We argue that a researcher should rather focus on the non-transformed outcome when discussing
Ciani, E, Fisher, P
openaire +11 more sources
Developments in Defining dif [PDF]
Journal of Bacteriology, 2010 The Gram-negative soil bacterium Myxococcus xanthus has a complex life cycle that involves vegetative growth and, when nutrients are limiting, formation of spore-containing fruiting bodies. The progression of the developmental cycle depends in part upon the ability of M.
Eva M, Campodonico, David R, Zusman
openaire +4 more sources
DIF in Spanish and Mathematics from Costa Rica’s national tests in reported students with ADHD
Actualidades Investigativas en Educación, 2017 The detection of differential item functioning (DIF) is fundamental to ensure instruments’ invariance, and, therefore, a better estimate of the construct being measured across the different groups of examinees. The purpose of this research was to provide
Eiliana Montero Rojas +1 more
doaj +3 more sources
Prompt fission neutron spectra in the 235U(n,f) reaction [PDF]
EPJ Web of Conferences, 2023 Prompt fission neutron spectra (PFNS) are crucial to any neutronic simulation of critical nuclear systems. An experimental setup dedicated to the measurements of PFNS of very high accuracy was developed at the Los Alamos Neutron Science Center (LANSCE ...
Mauss B. +13 more
doaj +1 more source
Direct Immunofluorescence in Oral Lichen Planus [PDF]
Journal of Clinical and Diagnostic Research, 2015 Introduction: Oral lichen planus (OLP) is a common immunemediated oral mucosal disease. Diagnosis of OLP depends mainly on both clinical and histopathological features.
Waranun Buajeeb +3 more
doaj +1 more source
Scientific Reports, 2021 Stromboli Volcano is well known for its persistent explosive activity. On July 3rd and August 28th 2019, two paroxysmal explosions occurred, generating an eruptive column that quickly rose up to 5 km above sea level. Both events were detected by advanced
A. Le Pichon +11 more
doaj +1 more source
Exploring differential item functioning in the SF-36 by demographic, clinical, psychological and social factors in an osteoarthritis population [PDF]
, 2013 The SF-36 is a very commonly used generic measure of health outcome in osteoarthritis (OA). An important, but frequently overlooked, aspect of validating health outcome measures is to establish if items work in the same way across subgroup of a ...
A Williams +34 more
core +3 more sources
Evaluation of memory-preserving models for particle transport in random media [PDF]
EPJ Web of ConferencesA shortcoming of the Levermore-Pomraning (LP) model is its inaccuracy to treat the transport of particles in a diffusive material alternating with a transparent one. Enhanced-memory LP models have been proposed by Zimermann et al.
Samba Gerald +4 more
doaj +1 more source
Production yields of micro-second isomers populated in 252Cf(SF) [PDF]
EPJ Web of Conferences, 2020 A twin Frisch grid ionization chamber loaded with an ultra-thin 252 Cf sample is used in order to detect spontaneous fission events. The chamber is surrounded by 8 HPGe detectors allowing to perform γ-spectroscopic measurements.
Gaudefroy Laurent, Ebran Adeline
doaj +1 more source
Erythroderma caused by vancomycin in children: concentration and speed of infusion
Mexican Journal of Medical Research ICSA, 2013 Vancomycin is an antibiotic glycopeptide that was isolated of the Streptomyces orientalis. It was introduced in the clinical practice for treatment of infections caused by staphylococcus in which other antibiotics were proving to be ineffective.
José F. Luna Álvarez +5 more
doaj +1 more source