Results 111 to 120 of about 13,577 (270)

Understanding cooperative membership and maize market participation in Rwanda: A Bayesian triple‐hurdle analysis

open access: yesAnnals of Public and Cooperative Economics, EarlyView.
Abstract Smallholder market participation studies often focus narrowly on selling decisions, overlooking the institutional role of agricultural cooperatives, particularly in contexts like Rwanda, where cooperatives underpin agricultural policy. Consequently, empirical evidence on how cooperative membership shapes farmers’ commercialization across ...
John N. Ng'ombe   +3 more
wiley   +1 more source

A stopping rule for discounted Markov decision processes with finite action sets [PDF]

open access: yes, 2009
summary:In a Discounted Markov Decision Process (DMDP) with finite action sets the Value Iteration Algorithm, under suitable conditions, leads to an optimal policy in a finite number of steps.
Lemus-Rodríguez, Enrique   +2 more
core  

JOINclusion: A serious mobile game for promoting ethnocultural empathy in schools

open access: yesBritish Journal of Developmental Psychology, EarlyView.
Abstract This study examines the efficacy of JOINclusion, a serious mobile game designed to enhance ethnocultural empathy in children aged 8 to 12. Grounded in the Social Emotional Learning (SEL) framework, JOINclusion delivers interactive scenarios through a narrative‐driven Story Mode and a collaborative Multiplayer Mode, encouraging emotional ...
Alessandra Colella   +9 more
wiley   +1 more source

Emotional and motivational experiences in teacher–student relationships and psychological need satisfaction during adolescence: A latent profile and latent transition analysis

open access: yesBritish Journal of Educational Psychology, EarlyView.
Abstract Background Emotional and motivational aspects of teacher–student relationships are central to adolescents' psychological need satisfaction and academic development. However, few longitudinal studies examine how these relational experiences evolve during adolescence or co‐occur with emotional‐motivational functioning.
Fabian Schimmelpfennig, Diana Raufelder
wiley   +1 more source

Limiting Conditional Distributions: Imprecision and Relation to the Hazard Rate [PDF]

open access: yes, 2009
Many Markov chains with a single absorbing state have a unique limiting conditional distribution (LCD) to which they converge, conditioned on non-absorption, regardless of the initial distribution.
CROSSMAN, RICHARD,JOHN   +1 more
core  

Approximating multidimensionality with asymmetric unidimensional IRT models

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Unidimensional item response theory (IRT) models are widely used even in settings where assessment data exhibit subtle forms of multidimensionality. Recent empirical evidence suggests that when item difficulty is associated with dimensionality, asymmetric item characteristic curves (ICCs) emerge in the unidimensional approximation.
Xiangyi Liao   +5 more
wiley   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

Optimal policies for discrete time risk processes with a Markov chain investment model [PDF]

open access: yes, 2006
We consider a discrete risk process modelled by a Markov Decision Process. The surplus could be invested in stock market assets. We adopt a realistic point of view and we let the investment return process to be statistically dependent over time.
Romera, Rosario, Diasparra, Maikol
core  

Advancing Global Oral Health Research Through Community and Academic Partnerships: An Overview of the CORE Programme

open access: yesCommunity Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Background The increasing burden of oral diseases in low‐ and middle‐income countries (LMICs) and limited access to and affordability of oral care disproportionately impact disadvantaged groups. Oral health research has been dominated by professional academic perspectives with limited contribution from the communities involved. The aim of this
Carol C. Guarnizo‐Herreño   +9 more
wiley   +1 more source

A Survey of Methods for Constructing 3D Urban Models From Point Clouds

open access: yesComputer Graphics Forum, EarlyView.
The survey outlines a general process for constructing 3D models from point clouds and categorizes the methods based on their use of templates, basic surface primitives, hybrid approaches, or linear primitives. Additionally, the survey reviews the datasets and benchmarks that are essential for testing and training the developed methods.
Chiara Romanengo   +5 more
wiley   +1 more source

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