Search results for "SURVEY"

A Multi-Projector Calibration Method for Virtual Reality Simulators with Analytically Defined Screens

2017

The geometric calibration of projectors is a demanding task, particularly for the industry of virtual reality simulators. Different methods have been developed during the last decades to retrieve the intrinsic and extrinsic parameters of projectors, most of them being based on planar homographies and some requiring an extended calibration process. The aim of our research work is to design a fast and user-friendly method to provide multi-projector calibration on analytically defined screens, where a sample is shown for a virtual reality Formula 1 simulator that has a cylindrical screen. The proposed method results from the combination of surveying, photogrammetry and image processing approac…

Sleep Disturbances in COPD are Associated with Heterogeneity of Airway Obstruction

2018

Individuals with Chronic Obstructive Pulmonary Disease (COPD) experience sleep disturbances due to the impact of respiratory symptoms on sleep quality. We explored whether sleep disturbances in COPD are linked to heterogeneity of airway constriction.The impact of breathing problems on sleep quality was measured in consecutive COPD outpatients with the COPD and Asthma Sleep Impact Scale (CASIS) questionnaire. Impulse oscillometry technique (IOS) was employed to assess heterogeneity of airway constriction. Subjects with a previous or concomitant diagnosis of asthma or obstructive sleep apnea (OSA) were excluded.Fifty COPD subjects (M/F 40/10; age: 71 +/- 8 yrs, Body Mass Index (BMI): 26.2 +/-…

Refining the preconditions of a social licence to operate (SLO) : reflections on citizens’ attitudes towards mining in two Finnish regions

2016

The debate around the social licence to operate (SLO) has been lively in recent years. In its elementary forms, the SLO is interpreted as the social acceptance granted by a community to mineral exploration and mining activities. Our theoretical assumption is that the SLO as a concept is both case-specific and more general, contingent, among other things, upon public opinion. In this study, acceptance is considered as general and anticipatory in the sense that it can act as a precondition for individual SLOs. Our intention is to contribute especially to recent novel research focusing on the more general background and factors contributing to the SLO. Using survey data (N = 1064), we explore …

Dimensiones del Ecosistema Digital Universitario: Validación del Instrumento «University Digital Ecosystem» (UN-DIGECO) / Dimensions of the Universit…

2020

El presente estudio presenta el diseño y validación del instrumento UN-DIGECO (University Digital Ecosystem), orientado a conocer el Ecosistema Digital Universitario, identificando las dimensiones asociadas al uso que hacen los estudiantes de los medios sociales (MMSS) y/o aplicaciones digitales. La validación de contenido y comprensión se efectuó en tres fases: construcción, refinado y validación psicométrica, mediante el análisis factorial confirmatorio, apoyado en el constructo teórico inicial. Se diseñaron ítems –recabando información de instrumentos similares-, acordes a indicadores adscritos a seis dimensiones: aprendizaje, interacción social, creación de contenidos, consumo online, o…

Attitudes : Tendencies and Variations

2018

This chapter presents an overview of religiosity and attitudes to religious diversity in media and other public spaces based on a cross-Scandinavian survey conducted in 2015. Although Scandinavians in general have a weak personal connection to religion, Christianity still holds a privileged position as an expression of cultural identity. Scandinavians express support for equal rights to practice religion, but also doubtfulness towards public expressions of religion. More than one-fourth of respondents discuss news about religion and religious extremism regularly. There is a widespread sentiment that Islam is a threat to the national culture, even though most respondents state that they oppo…

A soil biodiversity survey coupled with the national soil quality monitoring network?

2021

International audience; Despite its importance for human activities, soil biodiversity remains largely unknown and threatened. Aware of the need for large-scale monitoring, we studied the feasibility to add a soil biodiversity survey (RMBS-Biodiversity) to the already existing French soil quality monitoring network (RMQS). We worked with soil biodiversity experts to couple RMBS-Biodiversity with RMQS i.e. to choose soil taxons and functions, the methodologies and the sampling design. According to the experts, the sampling design of RMQS fits with a soil biodiversitysurvey. We propose sampling protocols for i) bacteria and fungi, ii) protists, iii) nematodes, iv) mesofauna (particularly spri…

Understanding Urban Fabric with the OH_FET model based on Social Use, Space and Time

2008

The proposed principle for understanding the urban fabric is based on considering the town as a set of complex objects, taking a systemic approach. The town system used to study the urban fabric over large time spans is composed of three sub-systems relating to historical objects from the level of the excavation to that of the former urban space: function (social use), space (location, surface area and morphology) and time (dating, duration and chronology). The historical object is the analytical unit of the space studied. It is the Cartesian product of the three sets, Social use, Space and Time, from which it stems. On the basis of this process, the Historical Object (OH) is broken down in…

Archaedyn - Workshop 1 - The dynamics of agricultural areas in the long term

2019

Archaedyn - Workshop 1 - The dynamics of agricultural areas in the long term

2019

Document destiné à être publié dans l’ouvrage ARCHAEDYN. Dynamique spatiale des territoires de la Préhistoire au Moyen Âge, auteurs : BERTONCELLO, F., FAVORY, F., GAUTHIER, E., GEORGES-LEROY, M., NUNINGER, L., POIRIER, N., WELLER, O., à paraître aux PUFC, Besançon, collection Cahiers de la MSHE, série Dynamiques territoriales.

Probabilistic and preferential sampling approaches offer integrated perspectives of Italian forest diversity

2023

Aim: Assessing the performances of different sampling approaches for documenting community diversity may help to identify optimal sampling efforts and strategies, and to enhance conservation and monitoring planning. Here, we used two data sets based on probabilistic and preferential sampling schemes of Italian forest vegetation to analyze the multifaceted performances of the two approaches across three major forest types at a large scale. Location: Italy. Methods: We pooled 804 probabilistic and 16,259 preferential forest plots as samples of vascular plant diversity across the country. We balanced the two data sets in terms of sizes, plot size, geographical position, and vegetation types. F…