Search results for "Community"
showing 10 items of 2132 documents
Introducing teachers to new semiotic tools for writing instruction and writing assessment: consequences for students’ writing proficiency
2017
This article reports consequences for student writing quality based on a long-term professional learning project. Project teachers, representing all school subjects in grades 3–7, were presented with a writing construct, ‘Wheel of Writing’, and norms of expectation for writing proficiency. Participating teachers used the writing construct and norms as a basis for writing instruction and writing assessment. The project was conducted in 24 schools across Norway. 3088 students from 20 project schools participated. Two hundred and thirty three students from 4 schools were used as a comparison group. The investigation showed that students in primary school improved their writing quality signific…
Importance of dispersal and thermal environment for mycorrhizal communities: lessons from Yellowstone National Park
2011
International audience; The relative importance of dispersal and niche restrictions remains a controversial topic in community ecology, especially for microorganisms that are often assumed to be ubiquitous. We investigated the impact of these factors for the community assembly of the root-symbiont arbuscular mycorrhizal fungi (AMF) by sampling roots from geothermal and nonthermal grasslands in Yellowstone National Park (YNP), followed by sequencing and RFLP of AMF ribosomal DNA. With the exception of an apparent generalist RFLP type closely related to Glomus intraradices, a distance-based redundancy analysis indicated that the AMF community composition correlated with soil pH or pH-driven c…
Mapping Protective Performance of Social Network Types on Health and Quality of Life in Older People in European Regions.
2022
Objectives: To identify social network profiles using Latent Profile Analysis (LPA), to study the relationships of these profiles with health markers, mental health, quality of life, and cognitive functioning, and to compare profiles across European regions. Methods: 27,272 participants from the Wave 8 of the SHARE project, aged 65 or older (M = 74.95, SD = 7.17) from Europe. Statistical analyses included LPAs followed by MANOVAs to compare the profiles and the health markers. Results: Five profiles were identified: family, friends, spouse, diverse, and others. A no network group was also added. The prevalence of the specific profiles differed across European regions. Individuals with no n…
Las redes sociales y la innovación educativa. La experiencia del Geoforo. Balance anual de 2012
2012
El aumento de la participación en los foros ha facilitado el intercambio de opiniones y argumentos sobre la innovación educativa. Podemos definir este momento como la creación de una red social con intereses profesionales coincidentes: la mejora del aprendizaje de los hechos sociales, en especial los que tienen una característica geográfica. Los datos que se aportan en este balance anual nos indican que se está asentando el Geoforo allí donde hay grupos locales, lo que nos confirma que este blog es una red de redes.
"Nerdfighters, we did it" : means of building a sense of community on the YouTube channel Vlogbrothers
2015
YouTube on tärkeä uusi ilmiö ja suosittu viihdekanava etenkin nuorten keskuudessa. YouTube-yhteisöjen suosiosta huolimatta ei niistä ole vielä tehty juurikaan tutkimusta, ja nettiyhteisöjen tutkimus onkin kohdistunut lähinnä tekstipohjaisiin yhteisöihin, kuten foorumeihin. Tutkielmani tarkoituksena on selvittää, kuinka YouTuben videobloggaajat rakentavat yhteisöllisyyden tunnetta faniensa keskuudessa. Tutkimuskohteenani on YouTube-kanava Vlogbrothers, jolla on yli kaksi miljoonaa vakituista katsojaa ja jonka ympärille on rakentunut poikkeuksellisen tiivis kansainvälinen katsojayhteisö. Videodataa analysoimalla pyrin erottamaan erilaisia keinoja, joilla vloggaajat vahvistavat yhteisöllisyyde…
Poner el trabajo al servicio de un proyecto de vida : estrategias contra la precariedad
2019
A partir de 20 historias de vida, este artículo se propone presentar las estrategias que algunos jóvenes italianos altamente cualificados han encontrado para eludir la doble amenaza de la precariedad laboral y de la invasión del trabajo en la vida. Centrando sus biografías en un proyecto de innovación social o ligado a la vertiente expresiva del trabajo, los jóvenes investigados se han enfrentado a un destino de explotación, incertidumbre, fragmentación e individualización del itinerario laboral y vital, común a una generación entera. Se ha utilizado la técnica de la entrevista en profundidad. La investigación ha permitido identificar en sus discursos las siguientes estrategias: 1) colocar …
Familien og felleskapets betydning i skoleelevenes selvpresentasjoner
2017
I denne artikkelen undersoker vi hvordan norske videregaende skoleelever presenterer seg selv. Elevene har tatt med et bilde de synes er viktig til intervjuet og dette dannet utgangspunktet for en refleksjon om hva de opplever er viktig i sitt liv og i samfunnet. Problemstillingen er todelt: Hva rapporterer skoleelever som viktig i sine liv og hvordan skal vi forsta det monsteret som trer fram? Dataene antyder et kulturelt monster hvor de unge soker etter kollektiv og grupper de kan knytte seg til heller enn a frigjore seg fra. Vi spor derfor hvorvidt vi bor utvikle en tenkning om tilknytning snarere enn individualisering. ABSTRACT English title: The Importance of Family and Community in St…
An Image Segmentation Algorithm based on Community Detection
2016
International audience; With the recent advances in complex networks, image segmentation becomes one of the most appropriate application areas. In this context, we propose in this paper a new perspective of image segmentation by applying two efficient community detection algorithms. By considering regions as communities, these methods can give an over-segmented image that has many small regions. So, the proposed algorithms are improved to automatically merge those neighboring regions agglomerative to achieve the highest modularity/stability. To produce sizable regions and detect homogeneous communities, we use the combination of a feature based on the Histogram of Oriented Gradients of the …
Overlapping community detection versus ground-truth in AMAZON co-purchasing network
2015
International audience; Objective evaluation of community detection algorithms is a strategic issue. Indeed, we need to verify that the communities identified are actually the good ones. Moreover, it is necessary to compare results between two distinct algorithms to determine which is most effective. Classically, validations rely on clustering comparison measures or on quality metrics. Although, various traditional performance measures are used extensively. It appears very clearly that they cannot distinguish community structures with different topological properties. It is therefore necessary to propose an alternative methodology more sensitive to the community structure variations in orde…
User and group networks on YouTube: A comparative analysis
2015
International audience; YouTube is the largest video-sharing social network where users (aka channels) can create links to any other users. Moreover, initially, users were allowed to create and join special groups of interest. Therefore, two types of online social networks can be defined. First, a user network where the nodes represent the users and the edges represent the social ties (friendship) between users. Second, a group network where the nodes represent the groups and the edges represent the social ties between groups, due to shared users. As the group network can be apprehended as the ground-truth overlapping community graph (where the nodes are the discovered communities and the l…