Search results for "Web"

Navigation et sélection de l'information : retour d'expériences

2015

International audience; RÉSUMÉ. Cet article présente un retour d'expériences visant à expérimenter un nouveau dispositif de prévisualisation breveté permettant à des utilisateurs de naviguer et de consulter des pages en profondeur. La tâche consiste à trouver un appartement cible possédant un ou plusieurs critères spécifiques dans un site web d'agence immobilière spécialement conçu. Plusieurs conditions ont été testées. L'une « normale » présentant les caractéristiques classiques de recherche, page par page; l'autre « plan » qui permet de pré-visualiser les pages choisies et de ne sélectionner que les pages pertinentes. Nous nous intéressons à la mise en oeuvre des processus cognitifs où s'…

Monikieliset verkkojulkaisut

1999

La satisfacción de uso de los dispositivos e-reader en una muestra de estudiantes universitarios españoles

2015

Este es un artículo de acceso abierto distribuido bajo los términos de la licencia Creative Commons Attribution-Non Commercial (by-nc) Spain 3.0.

Teachers and Students Surfing Together

2012

Several studies regarding the integration of audio-video conferencing and instant messaging in university and professional courses (Isaacs et al. 1994; Scholl et al.,2006) have revealed the importance of these two resources in enhancing interaction. Other studies (Boset al. 2001) have pinpointed that, in building trust, audio-video communication can reach the highest levels of effectiveness and liking (Schliemann, et al. 2002). Web-conference has made the web a powerful interactive tool, facilitating collaboration on joint projects and enabling the development of educational settings which lead to meaningful learning (Gillani, 2003). Such interactive modes in a blended-learning environment,…

Bruk av e-læring i spesialisthelsetjenesten - hva nå?

2014

Masteroppgave i helse- og sosialinformatikk HSI 500 Universitetet i Agder 2014 Background The demand for efficiency and collaboration in the health care industry is ever increasing. There are requirements for increased skills among health care workers. Web-based learning is a form of training that is increasingly used. The purpose of this study was to review the use of web-based learning in specialist health care services. This study aims to answer following research questions: 1) How well is it facilitated for web based learning in the health care industry, 2) How is web-based learning perceive by the user, and 3) What are the learning outcomes after having conducted web-based learning. Me…

VEBO: Validation of E-R diagrams through ontologies and WordNet

2012

In the semantic web vision, ontologies are building blocks for providing applications with a high level description of the operating environment in support of interoperability and semantic capabilities. The importance of ontologies in this respect is clearly stated in many works. Another crucial issue to increase the semantic aspect of web is to enrich the level of expressivity of database related data. Nowadays, databases are the primary source of information for dynamical web sites. The linguistic data used to build the database structure could be relevant for extracting meaningful information. In most cases, this type of information is not used for information retrieval. The work present…

Marine food web perspective to fisheries‐induced evolution

2021

Abstract Fisheries exploitation can cause genetic changes in heritable traits of targeted stocks. The direction of selective pressure forced by harvest acts typically in reverse to natural selection and selects for explicit life histories, usually for younger and smaller spawners with deprived spawning potential. While the consequences that such selection might have on the population dynamics of a single species are well emphasized, we are just beginning to perceive the variety and severity of its propagating effects within the entire marine food webs and ecosystems. Here, we highlight the potential pathways in which fisheries‐induced evolution, driven by size‐selective fishing, might reson…

Studies on the Sicilian populations ofAnacolia webbii(Mont.) Schimp. (Bartramiaceae, Bryophyta), rare moss in Europe

2014

New data on the distribution, biology, intra- and inter-population variability and conservation state of Sicilian populations of Anacolia webbii are provided. Two new localities are reported, so that total five fragmented populations occur in the island, all of them in a rather small area in the western part of the province of Palermo. They live on wet limestone or sandstone cliffs with base at 900–1200 m a.s.l. and N, N-NE aspect, within communities of Aceri campestris-Querco-ilicis sigmetum. The plants are particularly vigorous, but some data suggest a condition of vulnerability of the populations. In fact, in addition to specificity to a rare habitat on the island, a morphometric and all…

Plankton Ecology and Diversity

2010

In this chapter we describe plankton responses induced by fluctuating hydrology and eutrophication process in the semi-arid TDNP wetland. We have followed the planktonic community since 1992, at seasonal and interannual scales, covering as well the spatial heterogeneity of the wetland. The studied planktonic components were bacterioplankton, autotrophic picoplankton, nano and microphytoplankton and zooplankton, including ciliates. Plankton has been studied in terms of species composition (diversity), functional groups, spatial heterogeneity, population dynamics. The present data from this wetland allow us to determine which factors (resources and conditions) are relevant for each group and …

<title>Multifeature image and video content-based storage and retrieval</title>

1996

In this paper we present most recent evolution of JACOB, a system we developed for image and video content-based storage and retrieval. The system is based on two separate archives: a 'features DB' and a 'raw-data DB'. When a user puts a query, a search is done in the 'features DB'; the selected items are taken form the 'raw-data DB' and shown to the user. Two kinds of sessions are allowed: 'database population' and 'database querying'. During a 'database population' session the user inserts new data into the archive. The input data can consist of digital images or videos. Videos are split into shots and for each shot one or more representative frames are automatically extracted. Shots and …