Results 41 to 50 of about 15,343 (193)
Comparing two maximum likelihood algorithms for mixture Rasch models
Behaviormetrika, 2019 The mixture Rasch model is gaining popularity as it allows items to perform differently across subpopulations and hence addresses the violation of the unidimensionality assumption with traditional Rasch models. This study focuses on comparing two common maximum likelihood methods for estimating such models using Monte Carlo simulations. The conditional
Yevgeniy Ptukhin, Yanyan Sheng
openaire +1 more source
School Disruption and Classroom Climate on Teachers’ Burnout and Wellbeing
Psychology in the Schools, EarlyView.ABSTRACT Teachers with high levels of burnout and reduced levels of wellbeing are twice as likely to leave the teaching profession. For those that stay, it can result in strained relationships with their pupils and a difficulty to effectively manage classroom behavior.
Julia R. Badger +5 more
wiley +1 more source
Estimating parameters of a multipartite loglinear graph model via the EM algorithm [PDF]
, 2015 We will amalgamate the Rash model (for rectangular binary tables) and the newly introduced $\alpha$-$\beta$ models (for random undirected graphs) in the framework of a semiparametric probabilistic graph model.
Bolla, Marianna, Elbanna, Ahmed
core
Quarterly Journal of the Royal Meteorological Society, EarlyView.Uncertainties in the representation of ice particle size distributions (PSDs) cause inaccuracies in parameterisations of clouds. In this study, observed PSDs from a midlatitude frontal case study are compared with gamma PSDs with the same concentration and ice water content.
Rosie M. Mammatt +3 more
wiley +1 more source
On multidimensional item response theory -- a coordinate free approach
, 2007 A coordinate system free definition of complex structure multidimensional item response theory (MIRT) for dichotomously scored items is presented.
Antal, Tamás
core +1 more source
Low‐Cost Ambient Pressure Drying Approach for Highly Porous Nanomaterial Structures
Small Methods, EarlyView.We propose a simple, low‐cost method to dry highly porous nanomaterial structures at ambient temperature and pressure. Using low surface tension solvents, this technique minimizes capillary forces, preventing pore collapse and material shrinkage. This bypasses the need for expensive and size‐limiting critical point drying, enabling scalable production ...
Erik Greve +5 more
wiley +1 more source
Cellular and Secretory Proteins of the Salivary Glands of \u3cem\u3eSciara coprophila\u3c/em\u3e During the Larval-pupal Transformation [PDF]
, 1972 The cellular and secretory proteins of the salivary gland of Sciara coprophila during the stages of the larval-pupal transformation were examined by electrophoresis in 0.6 mm sheets of polyacrylamide gel with both SDS-continuous and discontinuous buffer ...
Been, Anita Cavagnaro, Rasch, Ellen M.
core +1 more source
Expansion velocity of a one-dimensional, two-component Fermi gas during the sudden expansion in the ballistic regime [PDF]
, 2012 We show that in the sudden expansion of a spin-balanced two-component Fermi gas into an empty optical lattice induced by releasing particles from a trap, over a wide parameter regime, the radius $R_n$ of the particle cloud grows linearly in time.
F. Heidrich-Meisner +6 more
core +2 more sources
FDI in Services: How Data Provisions Are Shaping the New Global Economy
Global Policy, EarlyView.ABSTRACT Coinciding with a process of slowbalization in goods, cross‐border flows of services have experienced a sharp increase, with FDI through commercial presence emerging as the dominant mode of international services supply. At the same time, a growing number of trade agreements have incorporated binding data‐related provisions aimed at regulating
Carmen Díaz‐Mora +2 more
wiley +1 more source
Acta Ophthalmologica, EarlyView.Abstract Aim To evaluate the impact of initial mono‐ versus multitherapy on the ocular surface and related quality of life after 5 years follow‐up in the Glaucoma Intensive Treatment Study (GITS). Method The study included patients with primary open‐angle glaucoma and pseudoexfoliation glaucoma who completed 5‐year follow‐up in GITS.
Gauti Jóhannesson +6 more
wiley +1 more source