5,076 research outputs found
Can goal-directed regulatory processes lead to innovative performance? : testing a motivational model of innovation
No full textCette thèse vise à appliquer la théorie de la régulation en fonction des objectifs à l’analyse du comportement innovant au travail. Après avoir examiné l’état de l’art de la littérature sur l’innovation (premier chapitre), nous avons mené trois études empiriques sur des échantillons différents. Dans la première étude (deuxième chapitre), nous avons supposé et montré que la génération proactive des objectifs – incluant les processus de projection et de planification – était positivement liée au comportement innovant, et que l’engagement affectif, en interagissant avec la flexibilité du rôle ou avec le soutien du leader à l’innovation, modérait positivement cette relation. Dans la deuxième étude (troisième chapitre), nous avons proposé et montré que la planification médiatisait la relation entre la projection et l’innovation, et que l’habilitation psychologique et le soutien du leader à l’innovation modéraient positivement la relation entre la projection et la planification. Enfin, dans la troisième étude (quatrième chapitre), nous avons supposé et démontré que l’orientation d’apprentissage, le climat d’équipe pour l’innovation, et la variété dans la tâche stimulaient la performance innovante indirectement, à travers la médiation de la projection et de la planification, et que l’orientation d’apprentissage renforçait la relation entre la planification et l’innovation. Les implications théoriques et pratiques de nos études sont traitées dans la discussion générale.The present dissertation aims at applying goal regulation theory to the study of innovative work behaviour. After reviewing the state-of-the-art of innovation literature (first chapter), we conducted three empirical studies on distinct samples. In the first study (second chapter), we hypothesized and found that proactive goal generation – which includes envisioning and planning processes – was positively related to innovative behaviour, and that affective commitment, interacting with production ownership or, alternatively, with leader support for innovation, strengthened this relationship. In the second study (third chapter), we proposed and showed that planning mediated the link between envisioning and innovation, and that psychological empowerment and team support for innovation positively moderated the relationship between envisioning and planning. Finally, in the third study (fourth chapter), we theorized and demonstrated that learning goal orientation, psychological climate for innovation, and task variety enhanced innovative performance indirectly through the mediation of envisioning and planning, and that learning goal orientation amplified the relationship between planning and innovation. Theoretical and practical implications of our works are addressed in the general discussion
Synchronous Quantum gravity
No full textThe implications of restricting the covariance principle within a Gaussian gauge are developed both on a classical and a quantum level. Hence, we investigate the cosmological issues of the obtained Schrodinger Quantum Gravity with respect to the asymptotically early dynamics of a generic Universe. A dualism between time and the reference frame fixing is then inferred
Low-energy sector of 8-dimensional General Relativity: Electro-Weak model and neutrino mass
No full text
Elementary particle interaction from a Kaluza-Klein scheme
No full textWe discuss properties of particles and fields in amulti- dimensional space-time, where the geometrization of gauge interactions can be performed. As far as spinors are concerned, we outline how the gauge coupling can be recognized by a proper dependence on extra-coordinates and by the dimensional reduction procedure. Finally applications to the Electro-Weak model are presented
Innovation in times of pandemic: The moderating effect of knowledge sharing on the relationship between COVID‐19‐induced job stress and employee innovation
No full textThe goal of this study is to examine knowledge sharing as a boundary condition under
which employee innovation can be enhanced in response to the job stress induced by the
COVID-19 pandemic. We argue that when stressed employees share knowledge, they can
expand their knowledge base and thereby enhance their innovative potential. Consistent
with our hypothesis, multiple regression analysis results based on a sample of 61 R&D
employees of UK and US technology-based firms show that knowledge sharing moderated
the relationship between COVID-19-induced job stress and employee innovation, such
that the relationship was negative when knowledge sharing was lower but became positive
when knowledge sharing was higher. These findings highlight the importance of investing
in knowledge-based resources to promote innovation behavior at work during a pandemic
Curvature-spin coupling from the semi-classical limit of the Dirac equation
No full textThe notion of a classical particle is inferred from Dirac quantum fields on a curved space-time, by an eikonal approximation and a localization hypothesis for amplitudes. This procedure allows to define a semi-classical version of the spin-tensor from internal quantum degrees of freedom, which has a Papapetrou-like coupling with the curvature
General relativity as classical limit of evolutionary quantum gravity
No full textWe analyze the dynamics of the gravitational field when the covariance is restricted to a synchronous gauge. In the spirit of the Noether theorem, we determine the conservation law associated with the Lagrangian invariance and outline that non-vanishing behaviour of the Hamiltonian comes out. We then interpret such resulting non-zero 'energy' of the gravitational field in terms of a dust fluid. This new matter contribution is co-moving to the slicing and it accounts for the 'materialization' of a synchronous reference from the corresponding gauge condition. Furthermore, we analyze the quantum dynamics of a generic inhomogeneous universe as described by this evolutionary scheme, asymptotically to the singularity. We show how the phenomenology of such a model overlaps the corresponding Wheeler-DeWitt picture. Finally, we study the possibility of a Schrodinger dynamics of the gravitational field as a consequence of the correspondence inferred between the ensemble dynamics of stochastic systems and the WKB limit of their quantum evolution. We demonstrate that the time dependence of the ensemble distribution is associated with the first-order correction in h to the WKB expansion of the energy spectrum
- …
