Search results for "GiST"
showing 10 items of 3463 documents
Descripción y análisis de un caso de enseñanza y aprendizaje de la demostración en una comunidad de práctica de futuros profesores de matemáticas de …
2010
El propósito de la investigación es analizar el aprendizaje de la demostración matemática de un grupo de estudiantes de un curso universitario de geometría plana, de un programa de formación de profesores, en el cual se llevó a cabo una instrucción experimental en la que se pretendía lograr la conformación de una comunidad de práctica. El marco teórico se circunscribe a la teoría de la práctica social propuesta por Wenger. En tal sentido, caracterizamos el aprendizaje como sinónimo de participación en la actividad demostrativa que se despliega para construir colectivamente, profesora y estudiantes, una porción de un sistema axiomático. Junto con la materialización de dicha práctica en un co…
2020
Sleep problems reported by parents affect 20% to 30% of infants. Few studies focused on the longitudinal association between infant feeding practices and sleep, especially in France. Analyses were based on 8,696 infants from the French national birth cohort ELFE. Collection of feeding practices from birth to 10 months allowed for the identification of trajectories of use of baby cereals and thickened formula by group‐based trajectory modelling and calculation of duration of any breastfeeding (BF) and age at complementary feeding introduction (CFI) excluding baby cereals. Total sleep duration (TSD), night waking (NW) and sleep onset difficulties (SOD) were reported at age 1. Associations bet…
Polygenic score for physical activity provides odds for multiple common diseases
2021
ABSTRACTPurposeIt has been suggested that genetic pleiotropy, in which the same genes affect two or more traits, may partially explain the frequently observed associations between high physical activity (PA) and later reduced morbidity or mortality. However, the evidence about pleiotropy from human studies is limited. This study investigated associations between PA polygenic risk scores (PRSs) and cardiometabolic diseases among the Finnish population.MethodsPRSs for device-measured overall PA were adapted to a FinnGen study cohort of 218,792 individuals with genome-wide genotyping and extensive digital longitudinal health register data. Associations between PA PRS and body mass index (BMI),…
Real-time Multispectral Image Processing and Registration on 3D Point Cloud for Vineyard Analysis
2021
International audience; Nowadays, precision agriculture and precision viticulture are under strong development. In order to accomplish effective actions, robots require robust perception of the culture and the surrounding environment. Computer vision systems have to identify plant parts (branches, stems, leaves, flowers, fruits, vegetables, etc.) and their respective health status. Moreover, they must merge various plant information, to measure agronomic indices, to classify them and finally to extract data to enable the agriculturist or expert to make a relevant decision. We propose a real-time method to acquire, process and register multispectral images fused to 3D. The sensors system, co…
Acceptance of SARS-CoV-2 Vaccination Among a Cohort of IBD Patients From Southern Italy: A Cross-Sectional Survey
2021
Conspiracy Beliefs Are Related to the Use of Smartphones behind the Wheel
2021
The belief in conspiracy theories predicts behaviors related to public health such as the willingness to receive vaccines. This study applies a similar approach to an aspect of road safety: the use of smartphones while driving. A representative sample of 1706 subjects answered a series of questions related to what can be regarded as erroneous or conspiracy beliefs against restricting or banning the use of smartphones while driving. The results show that those having such conspiracy beliefs reported a greater use of smartphones behind the wheel.
Bicycle Rider Behavior and Crash Involvement in Australia.
2021
This research investigated how behaviours and attitudes of bicycle riders influence crash frequency and severity. The study recruited 1102 Australian bicycle riders for an online survey. The survey comprised questions on demographics, frequency of riding and the number and severity of traffic crashes during the last five years. The survey included the Cycling Behaviour Questionnaire and the Cyclist Risk Perception and Regulation Scale. Overall, there were low levels of errors and violations reported by participants indicating that these behaviours were on average never or rarely exhibited while riding a bicycle. Conversely, participants reported high levels of engagement in positive behavio…
Menstrual problems and lifestyle among Spanish university women
2020
Menstrual problems affect many young women worldwide, conditioning both their academic performance and quality of life. This study sought to analyse the prevalence of menstrual problems and their possible relationship with lifestyle among Spanish university women, as part of a research project (UniHcos Project) involving a cohort of 11 Spanish universities with 7208 university students. A descriptive analysis was performed using the bivariate chi-square test and the Student&rsquo
High Quality Reconstruction of Dynamic Objects using 2D-3D Camera Fusion
2017
International audience; In this paper, we propose a complete pipeline for high quality reconstruction of dynamic objects using 2D-3D camera setup attached to a moving vehicle. Starting from the segmented motion trajectories of individual objects, we compute their precise motion parameters, register multiple sparse point clouds to increase the density, and develop a smooth and textured surface from the dense (but scattered) point cloud. The success of our method relies on the proposed optimization framework for accurate motion estimation between two sparse point clouds. Our formulation for fusing it closest-point and it consensus based motion estimations, respectively in the absence and pres…
La formación inicial en educación ambiental de los profesores de secundaria en periodo formativo.
2005
Ciertamente, cada vez es más reconocido el papel que juega la Educación Ambiental en la protección del entorno inmediato de cada uno y en la conservación global del medio. La educación formal tiene un papel principal, como entidad que facilita el conocimiento, desarrolla actitudes y permite la adquisición de hábitos que hagan más acorde los comportamientos de los ciudadanos con el medio. Dentro de éste proceso facilitado por la escuela, el educador es pieza clave para su consecución. Pero para alcanzar el desarrollo adecuado de la Educación Ambiental en el ámbito escolar, es imprescindible que la formación inicial del profesorado sea idónea. Partiendo de esta consecuencia, se ha diseñado la…