Search results for "descriptive"

Analyse des comportements différentiels selon le sexe chez les 50-74 ans : le cas de la participation électorale (France et Etats-Unis)

2022

La tranche d’âges des 50-74 ans a changé de caractéristiques après la transition démographique dans les pays occidentaux : la mortalité y est maintenant faible et peu différenciée entre les sexes. Pourtant, cette tranche d’âges conserve une caractéristique qui la distingue de celle des 25-49 ans : son infécondité, en raison principalement de l’infertilité des femmes après 45 ans. L’objectif de l’étude est d’abord d’analyser la pertinence d’un découpage par tranches d’âges qui utiliserait ces critères démographiques à la place du découpage socio-économique traditionnel construit notamment autour de l’âge de 60 ou 65 ans qui correspond à l’âge de départ à la retraite. Les différences de compo…

In Vitro Evaluation of the Biological Effects of ACTIVA Kids BioACTIVE Restorative, Ionolux, and Riva Light Cure on Human Dental Pulp Stem Cells

2019

This study aimed to analyze the biological effects of three new bioactive materials on cell survival, migration, morphology, and attachment in vitro. ACTIVA Kids BioACTIVE Restorative (Pulpdent, Watertown, MA, USA) (Activa), Ionolux (Voco, Cuxhaven, Germany), and Riva Light Cure UV (SDI, Bayswater, Australia) (Riva) were handled and conditioned with a serum-free culture medium. Stem cells from human dental pulp (hDPSCs) were exposed to material extracts, and metabolic activity, cell migration, and cell morphology were evaluated. Cell adhesion to the different materials was analyzed by scanning electron microscopy (SEM). The chemical composition of the materials was evaluated by energy-dispe…

Docenta Jēkaba Kalniņa Tēlojošās ģeometrijas kurss: saskaņā ar Latvijas Universitātē lasītām lekcijām

1922

Docenta J. Kalniņa Tēlojošās ģeometrijas kursa atlass

1922

Atlass ar 424 rasējumiem.

Heritage and knowledge: apparatus, logic and strategies in the formation of heritage

2016

Heritage as a category reflects diverse political positions. All heritagisation processes imply the creation of hierarchies, selection, ranking, and categorization of what is worthy or unworthy of being heritage, and all heritage creation involves certain disciplinary processes that confer legitimacy. As a modern invention, heritage was built on two closely-related cornerstones: the distinction between nature and culture and the difference between normalized knowledge and marginal knowledge. As a result, refining processes were applied which became strategies to legitimise political domination. In this paper the constituent process of heritage creation and its links to normative knowledge a…

Performance evaluation of robotic knowledge representation (PERK)

2012

In this paper, we explore some ways in which symbolic knowledge representations have been evaluated in the past and provide some thoughts on what should be considered when applying and evaluating these types of knowledge representations for real-time robotics applications. The emphasis of this paper is that the robotic applications require real-time access to information, which has not been one of the aspects measured in traditional symbolic representation evaluation approaches.

Ontological supports of knowledge: knowledge creation and analytical knowledge

2011

PurposeThe purpose of this paper is to examine, from the perspective of different theoretical approaches, the relationship that exists between different ontological supports of knowledge and knowledge itself (the way it is created and its characteristics).Design/methodology/approachThe paper proposes two different types of knowledge (knowledge of concrete situations and abstract knowledge) and two approaches (the constructivist view and the cognitive view) and provides a general classification of the different knowledge types. Second, it examines the underlying ontological support‐knowledge creation, characteristics or types of knowledge relationship in different approaches. Finally, conclu…

Linking content and technology: on the geography of innovation networks in the Bergen media cluster

2017

This paper deals with the geography of innovation networks and analyses combinatorial knowledge dynamics from a single cluster perspective. Addressing firms in the media cluster in Bergen, Norway, we examine how and from where companies acquire and combine different types of knowledge for their innovation activities. The empirical analysis, which is based on structured interviews with 22 media companies, identifies two main types of cluster firms: media content providers that rely heavily on symbolic knowledge and media technology providers that draw mostly on synthetic knowledge. Even though they draw on different knowledge bases, the two types of firms are strongly interlinked in their in…

Untangling knowledge fields and knowledge dynamics within the decision-making process

2020

PurposeThe purpose of this paper is to analyse the influences of different types of knowledge and their inherent dynamics on the effectiveness of the decision-making (DM) process. Knowledge dynamics (KD) is envisioned through the lens of the knowledge fields theory while effective DM process is objectivised via organisational appreciation and reward, higher business performance, sustainable partnerships and managerial satisfaction with previous achievements.Design/methodology/approachA questionnaire-based survey was conducted with 275 middle managers from companies operating in the business consulting field. The conceptual and structural model was tested using the partial least squares stru…

Symbolic and conceptual representation of dynamic scenes: Interpreting situation calculus on conceptual spaces

2001

In (Chella et al. [1,2]) we proposed a framework for the representation of visual knowledge, with particular attention to the analysis and the representation of scenes with moving objects and people. One of our aims is a principled integration of the models developed within the artificial vision community with the propositional knowledge representation systems developed within symbolic AI. In the present note we show how the approach we adopted fits well with the representational choices underlying one of the most popular symbolic formalisms used in cognitive robotics, namely the situation calculus.