Search results for "Change model"
showing 10 items of 16 documents
Cobalt Clusters with Cubane-Type Topologies Based on Trivacant Polyoxometalate Ligands.
2016
Four novel cobalt-substituted polyoxometalates having cobalt cores exhibiting cubane or dicubane topologies have been synthesized and characterized by IR, elemental analysis, electrochemistry, UV-vis spectroscopy, X-ray single-crystal analysis, and magnetic studies. The tetracobalt(II)-substituted polyoxometalate [Co4(OH)3(H2O)6(PW9O34)](4-) (1) consists of a trilacunary [B-α-PW9O34](9-) unit which accommodates a cubane-like {Co(II)4O4} core. In the heptacobalt(II,III)-containing polyoxometalates [Co7(OH)6(H2O)6(PW9O34)2](9-) (2), [Co7(OH)6(H2O)4(PW9O34)2]n(9n-) (3), and [Co7(OH)6(H2O)6(P2W15O56)2](15-) (4), dicubane-like {Co(II)6Co(III)O8} cores are encapsulated between two heptadentate [B…
Transboundary Basins Need More Attention: Anthropogenic Impacts on Land Cover Changes in Aras River Basin, Monitoring and Prediction.
2020
Changes in land cover (LC) can alter the basin hydrology by affecting the evaporation, infiltration, and surface and subsurface flow processes, and ultimately affect river water quantity and quality. This study aimed to monitor and predict the LC composition of a major, transboundary basin contributing to the Caspian Sea, the Aras River Basin (ARB). To this end, four LC maps of ARB corresponding to the years 1984, 2000, 2010, and 2017 were generated using Landsat satellite imagery from Armenia and the Nakhchivan Autonomous Republic. The LC gains and losses, net changes, exchanges, and the spatial trend of changes over 33 years (1984–2017) were investigated. The most important drivers of the…
Let's Talk Biology – Developing a Model for Incorporating English-Speaking Experts into the (Bilingual) Science Classroom
2019
We present an instructional approach to incorporate into biology lessons an exchange of videos between international practicing scientists and secondary-school students. We validated the approach in German school settings in three curricular contexts: genetics, cell biology, and immunology. The participating students (n = 255) were native speakers of German with a background of English as a foreign language. The three participating scientists, English-speaking experts from the United Kingdom and Uganda, were rooted in different fields that were related to the respective curricular topics. We explain how the video exchange model was developed and evaluate students' comments and suggestions f…
Energy-related optimal control accounts for gravitational load: comparing shoulder, elbow, and wrist rotations.
2013
International audience; Gaveau J, Berret B, Demougeot L, Fadiga L, Pozzo T, Papaxanthis C. Energy-related optimal control accounts for gravitational load: comparing shoulder, elbow, and wrist rotations. J Neurophysiol 111: 4-16, 2014. First published October 16, 2013; doi: 10.1152/jn.01029.2012.-We permanently deal with gravity force. Experimental evidences revealed that moving against gravity strongly differs from moving along the gravity vector. This directional asymmetry has been attributed to an optimal planning process that optimizes gravity force effects to minimize energy. Yet, only few studies have considered the case of vertical movements in the context of optimal control. What kin…
Riding the wave of success: the role of trans-national diffusion mechanisms in the development of far right parties
2018
ABSTRACTThe far right party (FRP) literature is quite variable-oriented and often undervalues the dynamics that motivate FRP development. Previous research describes the implausibility of developme...
The Needs that Individuals and Organizations Seek to Fulfil by Contemporary Employment Agreements: The Case of Latvia
2015
The paper analyses a contemporary employment deal looking for the answers to the question: “What needs do individuals and organizations seek to fulfil by employment in Latvia?” To answer this question the authors have developed the individual-organizational values exchange model based on E. Schein’s organizational culture formation model suggesting that the behaviour of individuals and organizations mirrors the basic values and needs of both actors. The needs are studied applying A. Maslow’s hierarchy of needs.
Modeling Changes for SHOIN(D) Ontologies: An Exhaustive Structural Model
2013
Ontology development starts with a rigorous ontological analysis that provides a conceptualization of the domain to model agreed by the community. An ontology, specified in a formal language, approximates the intended models of this conceptualization. It needs then to be revised and refined until an ontological commitment is found. Also ulterior updates, responding to changes in the domain and/or the conceptualization, are expected to occur throughout the ontology life cycle. To handle a consistent application of changes, a couple of ontology evolution methodologies have been proposed. Maintaining the structural consistency is one of the ontology evolution criteria. It implies modeling chan…
Stability and change model of job resources and work engagement: A seven-year three-wave follow-up study
2015
Using the stability and change model, conservation of resources theory and the job demands-resources model, this study aimed to determine: (1) the extent to which work engagement and job resources can be explained by a component reflecting stability and a component reflecting change in these constructs, and (2) the strength and direction of the relationship between work engagement and job resources when their stable components are controlled for. The study was carried out among 1,964 Finnish dentists over a seven-year time period (2003–2010), using a three-wave dataset. Some of the dentists had changed jobs during the follow-up, and therefore the research questions were validated among grou…
Threshold π0 photo- and electro-production in a meson-exchange model
2003
We show that, within a meson-exchange dynamical model describing well most of the existing pion electromagnetic production data up to the second resonance region, one is also able to obtain a good agreement with the pi^0 photo- and electroproduction data near threshold. In the case of pi^0 production, the effects of final state interaction in the threshold region are nearly saturated by single charge exchange rescattering. This indicates that in ChPT, it might be sufficient to carry out the calculation just up to one-loop diagrams for threshold neutral pion production.
Theorising about barriers to open e-learning systems in public administrations
2018
Abstract Barriers to the general use of e-learning technology are known across various contexts. Despite increasing efforts to clarify the range of these barriers, few efforts have been made to advance the theorising about them and, thus, to answer why and how they unfold. This study is motivated to overcome this unaddressed problem and develops a process model based on adaptive structuration theory (AST) and the punctuated socio-technical change model (PSIC). It represents how barriers unfold between actors, technology, and organisational properties in public administrations. The PaSIC model provides a new perspective on how critical incidents drive the emergence and progress of barriers t…