Search results for "àrees"
showing 10 items of 265 documents
Self-sustained coherent phonon generation in optomechanical cavities
2016
Optical forces can set tiny objects in states of mechanical self-sustained oscillation, spontaneously generating periodic signals by extracting power from steady sources. Miniaturized self-sustained coherent phonon sources are interesting for applications such as mass-force sensing, intra-chip metrology and intra-chip time-keeping among others. In this paper, we review several mechanisms and techniques that can drive a mechanical mode into the lasing regime by exploiting the radiation pressure force in optomechanical cavities, namely stimulated emission, dynamical back-action, forward stimulated Brillouin scattering and self-pulsing.
La capitalización de los arrendamientos operativos: Análisis del impacto en las empresas del IBEX 35
2018
Purpose: This paper analyzes the consequences of the change in the accounting rules about operating leases in the companies and users of financial information. Design/methodology: We use the constructive capitalization method to estimate the liabilities and leased assets and perform an ex ante analysis of the regulatory impact in the IBEX 35 non-financial companies. Non-parametric tests are employed to examine the effect on certain ratios, and through a multivariate regression we investigate the business characteristics that explain the variation of EBITDA. Findings: The ratios under study are significantly affected by the capitalization of operating leases. The explanatory analysis shows t…
Redesigning work in university classrooms: factors related to satisfaction in engineering and business administration students
2014
Objeto: Con este trabajo se pretende analizar cómo afectan las características del contexto del aprendizaje, es decir, cómo es el trabajo de los estudiantes en la asignatura, al potencial motivador de la asignatura y a la satisfacción de los estudiantes. Diseño/metodología/enfoque: Mediante ecuaciones estructurales (SEM) se ha analizado los datos de una muestra transversal (cursos 2008, 2009 y 2010) de 535 estudiantes de ingeniería industrial y administración de empresas, de una universidad pública española. Aportaciones y resultados: Los resultados, utilizando un instrumento validado y adaptado al mundo docente, demuestran la asociación existente entre las características del tipo de traba…
Strategic orientation to educational innovation : A systematic review and conceptual model
2022
Purpose: To carry out a systematic review of the literature on strategic orientation to educational innovation (SOEI), considering methodological and conceptual aspects. Methodology: Four macro-processes were implemented: identification (study location), description (information extraction), in-depth analysis (grouping and characterization patterns) and dissemination. The studies were identified through Scopus and Web of Science. The search expressions yielded 63 documents; afterwards, quality control was carried out using seven inclusion/exclusion criteria; the final sample consisted of 19 documents subject to review. Findings: With regard to methodological aspects, qualitative studies sta…
Knowledge construction about port performance evaluation: An international literature analysis
2017
Purpose: This study aims to identify and analyze the characteristics of international scientific research that addresses the segment of literature referring to port performance evaluation, in order to identify the existence of a theoretical alignment between the concept of performance evaluation, as an area of knowledge, and the practical application of port performance evaluation. Design/methodology: For the approach to the problem, this paper makes use of qualitative research, analyzing bibliographical portfolio characteristics related to port performance evaluation. An action research strategy was adopted, according to which the authors selected the bibliographical portfolio based on ana…
Student commitment to social responsibility: Systematic literature review, conceptual model, and instrument
2021
Purpose: This study aims to carry out a systematic literature review on empirical manifestations of the student commitment to social responsibility in order to propose a conceptual model that systematizes the underlying patterns in these manifestations and an instrument that makes it measurable. Design/methodology/approach: Four macro-processes were deployed: identify (locate the relevant literary space; the initial sample comprised 52 studies which later resulted in a sample of 24 studies), describe (narrative synthesis of the studies), deepen ( grouping patterns, validation, and characterization of the relevant literary space), and disseminate (preparation/refinement of the report). Findi…
Clustering the mediators between the sales control systems and the sales performance using the AMO model: A narrative systematic literature review
2018
[EN] Purpose: To identify all types of sales force control systems in the academic literature, and to cluster the mediators between these controls and the performances, according to the AMO model (abilities, motivations, and opportunities), analysing how each of these three groups of mediators are influenced by control systems, and how they impact on the sales performance, using a systematic literature review. Design/methodology: Scientific papers published during the last 32 years, using as databases: Business Source Premier (EBSCO), Science Direct, Scopus, Web of Science, and Google Scholar. Business, Management and Social Sciences were taken as selection fields. False positives identific…
Psychometric properties of the interaction on supervised classes scale (ISCS)
2016
Objeto: La presente investigación se centra en la construcción y validación de una escala diseñada para evaluar la calidad de la clases dirigidas: Escala de Interacción en las Clases Dirigidas (EICD). Diseño/metodología/enfoque: Se trata de un estudio descriptivo correlacional. Para la elaboración de la escala se recurrió a tres fases diferenciadas en las que diferentes expertos evaluaron la adecuación de los ítems, finalmente se estudiaron las propiedades psicométricas de la versión final en una muestra de 314 socios (69.1% mujeres) con edades entre los 18 y los 77 con una media de 39.33 años (DT=12.25). Aportaciones y resultados: La escala presenta una validez y fiabilidad adecuadas, sien…
Testing invariance between web and paper students satisfaction surveys. A case study
2017
[EN] Purpose: This paper studied the measurement invariance (MI) across web-based and paper-based surveys to evidence if both techniques of data collection can be regarded as equivalent. Design/methodology: We develop a multigroup confirmatory factor analysis (MGCFA) with Maximum Likelihood Estimation to asses measurement invariance of the Job Diagnostic Survey (JDS) adapted to teaching, with data collected from paper and web surveys. Sample from paper surveys was constituted by 294 student of a Spanish public university in the academic years 2007-08, 2008-09 and 2009-10. Internet surveys were administered through an open source survey application called Lime Survey. We received 241 complet…
Special Issue: Current Trends in Research in Accounting Finance and Management Control
2017
On January 27, 2016, an agreement was signed with OmniaScience to select articles to be published in the journal Intangible Capital, in a special issue titled "Current Trends in Research in Accounting, Finance and Management Control." The agreement was reached within the framework of three events at the University of Valencia, from June 27 to 30, 2016: XXI Workshop on Accounting and Management Control. “Memorial Raymond Konopka”, X Iberoamerican Congress of Management Accounting, III International Congress on Port Management.More than 200 papers were presented to these events. After being peer-reviewed by a scientific committee made up of 50 professionals, 123 papers were selected. Then, t…