Results 151 to 160 of about 163,993 (328)

Design of Experiments and Algebraic Cycles

open access: yesJournal of UOEH, 1983
It is well-known that balanced incomplete block designs are closely connected with finite geometry. A block design can be obtained by identifying rational points of an algebraic variety with treatments. The number of GF(qs)-rational points follows from the theory of étale cohomologies.
openaire   +3 more sources

Bayesian inference for dynamic Q matrices and attribute trajectories in hidden Markov diagnostic classification models

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Hidden Markov diagnostic classification models capture how students' cognitive attributes evolve over time. This paper introduces a Bayesian Markov chain Monte Carlo algorithm for diagnostic classification models that jointly estimates time‐varying Q matrices, latent attributes, item parameters, attribute class proportions and transition ...
Chen‐Wei Liu
wiley   +1 more source

Frisch Elasticity, Directed Technical Change, and Automation: A Unified Framework for Wage Polarization and Skill Premium Dynamics

open access: yesBulletin of Economic Research, EarlyView.
ABSTRACT This paper examines how labor‐supply responsiveness, captured by the inverse Frisch elasticity, shapes wage inequality in the presence of directed technical change and automation. We develop a dynamic general equilibrium model with task‐based production, heterogeneous labor, and endogenous R&D.
Óscar Afonso
wiley   +1 more source

New biosensors and transgenic mice for multiplex cGMP imaging

open access: yesBritish Journal of Pharmacology, EarlyView.
Background and Purpose Cyclic guanosine monophosphate (cGMP) is a versatile second messenger that is important for human (patho‐)physiology and pharmacotherapy. Live‐cell imaging of cGMP with biosensors allows to elucidate its spatiotemporal dynamics in real time under close‐to‐native conditions. However, to monitor two separate cGMP pools or cGMP/cAMP
Markus Wolters   +6 more
wiley   +1 more source

Cubic and quartic planar differential systems with exact algebraic limit cycles

open access: yesElectronic Journal of Differential Equations, 2011
We construct cubic and quartic polynomial planar differential systems with exact limit cycles that are ovals of algebraic real curves of degree four. The result obtained for the cubic case generalizes a proposition of [9].
Ahmed Bendjeddou, Rachid Cheurfa
doaj  

Survey‐Based Research for Creativity and Innovation Management: Review and Recommendations

open access: yesCreativity and Innovation Management, EarlyView.
ABSTRACT Survey methodology remains a widely used data collection method in creativity and innovation management studies. However, evolving technological advancements and methodological challenges necessitate a reassessment of best practices to benefit the most from it.
Marco Mismetti   +2 more
wiley   +1 more source

Understanding Visitor Path Choice and Enhancing Wayfinding in Museums: A Critical Review of a Century of Research

open access: yesCurator: The Museum Journal, EarlyView.
ABSTRACT The paths taken by visitors in museums influence what they see, do, learn, and experience. Poorly designed museums can lead to missed goals and opportunities. In this article, I critically review visitor studies published since the 1930s to evaluate explanations for visitor path choice in museums, namely, the location and attractiveness of ...
Gareth Davey
wiley   +1 more source

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