Search results for "Values"
showing 10 items of 1365 documents
Detuning-induced robustness of a three-state Landau-Zener model against dissipation
2019
A three-state system subjected to a time-dependent Hamiltonian whose bare energies undergo one or more crossings, depending on the relevant parameters, is considered, also taking into account the role of dissipation in the adiabatic following of the Hamiltonian eigenstates. Depending on the fact that the bare energies are equidistant or not, the relevant population transfer turns out to be very sensitive to the environmental interaction or relatively robust. The physical mechanisms on the basis of this behavior are discussed in detail.
Modelling excitonic energy transfer in the photosynthetic unit of purple bacteria
2009
Abstract Molecular mechanics and quantum chemical configuration interaction calculations in combination with exciton theory were used to predict vibronic energies and eigenstates of light harvesting antennae and the reaction centre and to evaluate excitation energy transfer rates in the photosynthetic unit of purple bacteria. Excitation energy transfer rates were calculated by using the transition matrix formalism and exciton basis sets of the interacting antenna systems. Energy transfer rates of 600–800 fs from B800 ring to B850 ring in the LH2 antenna, 3–10 ps from LH2 to LH2 antenna, 2–8 ps from LH2 to LH1 antenna and finally 30–70 ps from LH1 to the reaction centre were obtained. Depend…
Numerical modelling of asymmetric boudinage
2002
Abstract Asymmetric boudinage structures are commonly used as shear sense indicators but their development is incompletely understood. This paper describes the influence of initial shape and kinematic parameters on the evolution of boudin trains using a numerical approach based on the finite difference code FLAC. Boudin trains are simulated as a series of competent objects embedded in a soft matrix subjected to general monoclinic ductile flow. Deformation of boudin trains includes heterogeneous stretching, rotation of boudins and offset along the neck regions. The sense of relative boudin offset is mainly influenced by the initial orientation of the interboudin plane in the boudinaging laye…
Platelet function testing in pigs using the Multiplate® Analyzer.
2019
PLOS ONE 14(8), e0222010 (2019). doi:10.1371/journal.pone.0222010
Exploring the Normative Foundation of Journalism Education : Nordic Journalism Educators’ Conceptions of Future Journalism and Professional Qualifica…
2022
This article deals with Nordic journalism educators’ conceptions of journalism by placing the concept of normativity at the center. The values, norms and ideas concerning journalism and journalistic practice have previously been studied by journalists and journalism students around the world and in the Nordics, while the Nordic journalism educators’ conceptions have remained more or less without attention. Nevertheless, journalism educators play a crucial role in defining what journalism is and what it is not, and thus largely affect future practitioners’ ideas of journalism. Using a questionnaire that has been employed in previous studies, journalism educators within the …
Geographical and ecological outline of metal(loid) accumulating plants in Italian vascular flora
2018
The decontamination of heavy metal polluted soils is one of the major challenges that our industrialized world has to face. Remediation technologies are being developed and employed in order to reduce the potential hazards of metal and metalloid contamination. Plants capable of uptaking metals and metalloids in their tissues can be an effective tool to remove such pollutants from contaminated soils. The use of this plant-driven process (Phytoremediation) requires the knowledge of the right phytoextractors to use when facing different types of contamination. The aim of this paper is to provide an inventory of phytoextractors that can be used in Phytoremediation procedures in Italy. The check…
C3 reference typing report and nomenclature revision.
1990
As the result of reference typing, two 'new' variants could be provisionally accepted (C3F045 and C3F015). The list of variants of the C3 polymorphism includes now 2 common and 29 rare variants.
Prácticas escolares y docentes en formación: un análisis axiológico a través de los diarios de prácticas
2021
Los valores impregnan la realidad y forman parte de todo acto educativo, convirtiéndose el docente en ejemplo de comportamientos y actitudes para el alumnado. De este modo, la construcción identitaria profesional y personal de los docentes estará determinada por las elecciones valorativas que se realicen en el contexto escolar. Partiendo de esta premisa, el objetivo de este estudio ha sido conocer los valores que vivencian los docentes en formación en el prácticum a través de las experiencias registradas en los diarios de prácticas. La muestra la han compuesto 80 estudiantes matriculados en la asignatura Prácticas Escolares I del Grado en Educación Primaria de la Universidad Internacional d…
The Narcissistic Personality Inventory 8: Validation of a Brief Measure of Narcissistic Personality
2020
The present study was conducted with the aim of constructing and validating a short form of the Narcissistic Personality Inventory (NPI). The NPI is the most widely-applied measure for the assessment of narcissistic personality traits and, therefore, it is of great relevance for many research questions in personality and social psychology. To develop the short scale, we first found the optimal eight-item solution among all valid combinations of the NPI-15 items in an exploratory subsample (n = 1,165) of our complete representative sample of the German general population. We then validated this model in a confirmatory subsample (n = 1,126). Additionally, we examined its invariance across age…
Espirometría forzada en preescolares sanos bajo las recomendaciones de la ATS/ERS: estudio CANDELA
2009
Resumen: Introducción: actualmente no existen valores de referencia de espirometría forzada en preescolares sanos obtenidos según las recomendaciones publicadas por la American Thoracic Society (ATS) y la European Respiratory Society (ERS) en 2007. El objetivo del estudio es establecer valores espirométricos de referencia en niños preescolares sanos entre los 2 y los 7 años, según recomendaciones ATS/ERS. Material y método: estudio nacional, multicéntrico, descriptivo y transversal, en niños sanos de ambos sexos, mayores de 2 años y menores de 7. Las espirometrías forzadas se realizaron en laboratorios de función pulmonar de las 9 unidades de neumología pediátrica participantes. Los técnico…