Search results for "DISTANCE"
showing 10 items of 1009 documents
Cultural Distance and International Trade in Services: A Disaggregate View
2020
Abstract In this paper, we estimate the effect of “cultural distance” on bilateral trade in services. The measure of cultural distance we use is based on scores that reflect country averages of individuals’ attitudes towards inequality, self-orientation, competition, uncertainty, traditions, and indulgence. Controlling for standard ingredients of gravity equations, we show that an aggregate measure of cultural distance has a significantly negative effect on total bilateral services trade. Once we take a more disaggregate view, we find that the strength of this effect differs across various types of services and various aspects of cultural distance.
Teaching in times of COVID-19: determinants of teachers' educational technology use
2021
We conduct a large and nationwide survey among German teachers to investigate the determinants of teachers' adaption to an increased use of educational technology during the COVID-19 school closure...
Regional inequalities as drivers of affective polarization
2022
This paper investigates divergences in levels of affective polarization across Belgian regions around the 2019 elections. Elaborating on the relative deprivation theory, we analyse the role of current and long-term socio-economic regional inequalities and of geographical distance separating regions. Empirically, we aggregate individual-level measures of affective polarization at the Belgian NUTS-3 level and use a gravity approach to explore the determinants of regional divergences. Our results show that regional variations in affective polarization are best explained by a current rural–urban divide and by how regions have performed economically in the last years. We also show that geographi…
What Geographical Concentration of Industries in the Tunisian Sahel? Empirical Evidence Using Distance‐Based Measures
2020
International audience; This paper examines the location patterns of manufacturing industries within the most developed regions of Tunisia, the Sahel. We use detailed micro-geographic data and the distance-based approach of Duranton and Overman. While the textile industry shows a high degree of geographical concentration, the high-tech industries are also among the most concentrated, meaning that the Tunisian Sahel gathers a specialised pool in these industries. We further analyse the location patterns of manufacturing sub-sectors: totally and partially exporting plants and domestic, mixed and foreign plants and show that totally exporting plants and foreign and mixed plants exhibit strong …
Open-Source software in OR education
2010
24th European Conference on Operational Research (EURO XXIV). Lisboa, 11 a 14 de Julho de 2010 (Comunicação). This contribution will focus on Computational Tools of Open-Source Software in OR Education. Some educational experiences in the area of Forecasting; Simulation; Graphs and Networks; Decision Theory and Linear Programming based on: R 2.10.0, Scilab 5.1.1 and an Open Source Spreadsheet will be illustrated, with a brief reference to the acceptance of pupils and colleagues.
Associations Between Online Learning, Smartphone Addiction Problems, and Psychological Symptoms in Chinese College Students After the COVID-19 Pandem…
2022
BackgroundSmartphone-based online education gained popularity during and after the COVID-19 pandemic. Although recent studies have highlighted the association between problematic smartphone use (PSU) and mental health symptoms, the potential role of online learning in this relationship remains unclear. This study aimed to analyze the relationships between higher education modes, PSU, and related psychological symptoms in university students.MethodsA total of 1,629 Chinese university students from five provinces completed a web-based questionnaire survey between March 2020 and October 2021. Demographic characteristics and learning conditions were recorded. All participants completed the Smar…
Integrating Computational Linguistic Analysis of Multilingual Learning Data and Educational Measurement Approaches to Explore Learning in Higher Educ…
2017
This chapter develops a computational linguistic model for analyzing and comparing multilingual data as well as its application to a large body of standardized assessment data from higher education. The approach employs both an automatic and a manual annotation of the data on several linguistic layers (including parts of speech, text structure and content). Quantitative features of the textual data are explored that are related to both the students’ (domain-specific knowledge) test results and their level of academic experience. The respective analysis involves statistics of distance correlation, text categorization with respect to text types (questions and response options) as well as lang…
Enseignement à distance : équité ou efficacité
2000
International audience; Cet article a pour objet de montrer que l'enseignement à distance universitaire français ne répond pas de façon satisfaisante ni aux critères d'équité qui sont pourtant à l'origine de la mise en place de ce mode d'accès aux études, ni aux critères de l'analyse coût-efficacité. Il met en évidence un certain nombre de causes qui peuvent expliquer pourquoi l'approche française de l'enseignement à distance est peu efficiente.
Utilització d'una eina online per a la realització de tutories remotes: una experiència pràctica
2010
Elluminate Live! és un producte comercial dissenyat específicament per a la impartició de classes virtuals i la vídeo conferència entre múltiples usuaris. En aquest article, vam analitzar el seu ús en el context de la realització de tutories remotes en l'assignatura Informàtica, de primer curs de la titulació de Llicenciatura en Matemàtiques en la Universitat de València. A més de constituir una alternativa viable com complement a les tutories presencials, l'ús de l'eina proporciona una sèrie d'avantatges pel que fa a aquestes. Entre elles destaca la possibilitat de supervisar el treball de diversos alumnes de forma simultània, de realitzar explicacions a grups i de facilitar el treball coo…
Conservative swept volume boundary approximation
2010
We present a novel technique for approximating the boundary of a swept volume. The generator given by an input triangle mesh is rendered under all rigid transformations of a discrete trajectory. We use a special shader program that creates offset geometry of each triangle on the fly, thus guaranteeing a conservative rasterization and correct depth values. Utilizing rasterization mechanisms and the depth buffer we then get a conservative voxelization of the swept volume (SV) and can extract a triangle mesh from its surface. This mesh is simplified maintaining conservativeness as well as an error bound measured in terms of the one-sided Hausdorff distance. For this we introduce a new techniqu…