Search results for "Arity"
showing 10 items of 2893 documents
Side-specific effects by cadmium exposure: Apical and basolateral treatment in a coculture model of the blood–air barrier
2010
Cadmium (Cd{sup 2+}) is a widespread environmental pollutant, which is associated with a wide variety of cytotoxic and metabolic effects. Recent studies showed that intoxication with the heavy metal most importantly targets the integrity of the epithelial barrier. In our study, the lung epithelial cell line, NCI H441, was cultured with the endothelial cell line, ISO-HAS-1, as a bilayer on a 24-well HTS-Transwell (registered) filter plate. This coculture model was exposed to various concentrations of CdCl{sub 2}. The transepithelial electrical resistance decreased on the apical side only after treatment with high Cd{sup 2+} concentrations after 48 h. By contrast, a breakdown of TER to less t…
Social Disparities in Education in Sub-Saharan African Countries
2007
In this paper we have two complementary objectives: the first is to describe the magnitude of social disparities that exist in the systems of education of sub-Saharan African countries; we focus on recent data but we also put these data in a time perspective. The second objective is to identify some of the factors that may explain these disparities and the impact of policies aimed at their reduction.
Bloch Modes Coupling in Photonic Crystal Waveguides
2005
We investigate the properties of Bloch modes inside a photonic crystal waveguide. By using simultaneously a near field optical microscope and a transmittance setup, we demonstrate that Bloch modes having different parity are coupled.
Balancing Organisational Design Principles: A Pragmatic Scandinavian Approach to CSR
2016
One can argue that Scandinavian countries have much of the essence of CSR incorporated in their culture and society. We use Norway as an example for this argument, by looking at the development of work-life since the 50s. Further, we use one highly industrialised area, Raufoss, as further proof of our claim of the lack of separate popularity of CSR, as it is already covered in the context of society. However, this is not the same as saying that there are no challenges to this model. One of the most challenging topics is innovation: this should be socially responsible innovation. The Norwegian, social model can seem to promote stability, so that people and companies become risk averse.
A fuzzy evaluation of tourism sustainability
2019
For many years the sustainability assessment of tourist destinations has been based on the carrying capacity, which is a measure that takes into account the preservation of a geographical area (by measuring the number of tourists, the visitor flow and the environmental thresholds) along with its tourist fruition (by assessing the quality of the experience perceived by visitors). Unfortunately, its definition lacks clarity, and its dependence upon qualitative variables makes it unable to provide a unique criterion for its assessment. In this paper we propose a fuzzy approach that takes into account the inherent uncertainty and vagueness of the involved variables to assess a destination’s sus…
Tourist choice, competitive tourism markets and the effect of a tourist tax on producers revenues
2022
We propose a model for the tourism sector assuming basically two markets, one for tourist services and the other for accommodation. These sub-markets are considered as separate but interrelated. The nature of the feedback is determined by a vertical complementarity between tourist services and lodging. We obtain the optimal solution of the tourist choice problem, the primary demand for tourist services and the derived demand for overnight stays. Then, we focus on the equilibrium outcomes assuming perfectly competitive tourism markets. We do not address the externalities caused by tourism activities. Consequently, we move away from efficiency by introducing a tax on overnight stays and insp…
Learning Similarity Scores by Using a Family of Distance Functions in Multiple Feature Spaces
2017
There exist a large number of distance functions that allow one to measure similarity between feature vectors and thus can be used for ranking purposes. When multiple representations of the same object are available, distances in each representation space may be combined to produce a single similarity score. In this paper, we present a method to build such a similarity ranking out of a family of distance functions. Unlike other approaches that aim to select the best distance function for a particular context, we use several distances and combine them in a convenient way. To this end, we adopt a classical similarity learning approach and face the problem as a standard supervised machine lea…
On C1 robust singular transitive sets for three-dimensional flows
1998
Abstract The main goal of this paper is to study robust invariant transitive sets containing singularities for C 1 flows on three-dimensional compact boundaryless manifolds: they are partially hyperbolic with volume expanding central direction. Moreover, they are either attractors or repellers. Robust here means that this property cannot be destroyed by small C 1 -perturbations of the flow.
Interdisciplinarity and languages: Current Issues in Research, Teaching, Professional Applications and ICT
2011
This volume offers a state-of-the-art view of research into interdisciplinarity, language and Information and Communication Technology (ICT) by providing an overview of teaching proposals within a university context. Interdisciplinarity is understood here as how language expresses the discourse and lexis of specialised knowledge in science, technology and the professions. Language helps in the creation of these different fields and constitutes a strategic tool that, if harnessed correctly, will facilitate competitiveness on an international level in order to boost technological, scientific, economic and educational growth. Interdisciplinarity, language and ICTs should be taken into account …
International solidarity in the GDR and transnationality: an analysis of primary school materials for Namibian child refugees
2014
As part of a solidarity project between the South West African People’s Organization (SWAPO) and the German Democratic Republic (GDR), approximately 430 Namibian children were brought to the GDR from 1979 to 1989 to be trained as an elite for a future liberated Namibia. The children attended school in the GDR until they were brought back to Namibia in August 1990. The school lessons intertwined topics about Namibia and SWAPO with the usual GDR school curriculum. The linchpin of this intertwining was the socialist ideal of international solidarity. This article uses an objective-hermeneutic analysis to show how the school materials produced transnationality.