Search results for " Spatial"
showing 10 items of 582 documents
Effets de voisinage dans le modèle de Solow avec des externalités spatiales
2004
L’objectif de cet article est d’introduire des externalités spatiales dans le modèle de croissance de Solow afin de tenir compte de l’interdépendance géographique des régions. Ces extemalités sont générées par le stock de capital accumulé par les régions voisines. Par conséquent, une politique économique visant à augmenter le taux d’investissement d’une région influence l’ensemble des régions par un effet multiplicateur spatial qui agitd’autant plus sur le revenu par tête que les régions sont géographiquement proches. Ainsi, nous utiliserons cet effet afin d’évaluer les conséquences d’une politique régionale sur la répartition spatiale des richesses dans l’Union Européenne élargie à 27 memb…
Analyse spatiale des disparités régionales dans l'Europe élargie
2004
The aim of this paper is to study the regional inequalities in the enlarged European Union using Exploratory Spatial Data Analysis applied to per capita GDP for 258 regions of EU27 over the period 1995-2000. Strong evidence in favor of global and local autocorrelation as well as spatial heterogeneity is found for the wealth distribution. We also show that the enlargement process leads to a new North-West - East polarization scheme instead of the previous results obtained in the literature highlighting a North-South polarization scheme. Implications for regional development and cohesion policies are finally explored.
Spatial effects in housing price models : do housing prices capitalize urban development policies in the agglomeration of Dijon (1999) ?
2004
In this article we suppose that the integration of accessibility and neighborhood variables in hedonic housing models doesn't allow to take into account the spatial effects between the housing prices. Using a sample of 1520 transactions of apartments in the urban area of Dijon, we focus on two types of location variables : the distance to the CBD and the distance to several Disadvantaged Districts located in peripheral areas. We detect the presence of a spatial error autocorrelation in the hedonic model indicating that the valuation of the price of an apartment is locally influenced by the prices of the neighboring apartments. Then, we estimate a spatial error model which shows that the loc…
A portrait of Jost Krippendorf
2014
The problem of sustainability emerged in last decades as a result of climate change and pollution produced by modern industry to the atmosphere. Seminal studies have contributed to give alternative...
A system for the real-time geo-referenced measurement of soil parameters
2011
The aim of this research is to develop a system for accurately measuring in real-time, collecting and processing a high amount of geo-referenced data of soil physical-mechanical parameters, e.g. cone penetrometer resistance, index of soil compaction, and draft force. The system for measuring the soil cone penetrometer resistance is comprised of a load cell, connected to a rod, ending with a cone, and is mounted on a frame, fixed to the front part of a tractor. The system for measuring the draft force required to till the soil is comprised of a load cell, mounted on the hitch hook of a tool carrier, towed by the tractor. Moreover, in order to test the usefulness of the system with different …
Pregnenolone sulphate improves memory processing in early-handled female rats
2013
Early life experiences lead to sex-specific behavioural and neurochemical changes in adulthood. Indeed, early handling enhances learning and memory in male rats (Cannizzaro et al., 2005), whereas it impairs learning performance in female adult rats, a finding that has been correlated to decreased nitric oxide (NO) production in the hippocampus (Noschang et al., 2010). Pregnenolone sulfate (PREGS) is considered as one of the most potent memory-enhancing neurosteroids, since its activity as a potent positive modulator of N-methyl-d-aspartate receptors (NMDARs) and a negative modulator of gamma-aminobutyric acid(A) receptors (GABA(A)Rs) (Vallée et al., 2001). Given these premises, this study a…
Socio-spatial polarisation and policy response: Perspectives for regional development in the Baltic States
2022
Based on a relational understanding of socio-spatial polarisation as a nested, multidimensional and multi-scalar process, the paper applies a comparative perspective on current trends of socio-spatial development in Estonia, Latvia and Lithuania. Comparing current scholarship and data on demographic and economic processes of centralisation and peripheralisation, we also examine political debates around issues of polarisation in different scholarly national perspectives. Despite variations in national discourses, our comparative perspective conveys strong similarities between the three Baltic countries in terms of socio-economic and demographic concentration in the capital regions to the di…
Timed up-and-go performance is associated with objectively measured life space in patients 3 months after ischemic stroke: a cross-sectional observat…
2023
Background Stroke is a common cause of mobility limitation, including a reduction in life space. Life space is defined as the spatial extent in which a person moves within a specified period of time. We aimed to analyze patients' objective and self-reported life space and clinical stroke characteristics. Methods MOBITEC-Stroke is a prospective observational cohort study addressing poststroke mobility. This cross-sectional analysis refers to 3-month data. Life space was assessed by a portable tracking device (7 consecutive days) and by self-report (Life-Space Assessment; LSA). We analysed the timed up-and-go (TUG) test, stroke severity (National Institutes of Health Stroke Scale; NIHSS), and…
Le marché du travail des scientifiques : capital humain, incitations, proximité
2011
The aim of that thesis is to bring a micro level contribution to the economics of innovation when using original datasets on the French case. Here the manuscript is structured in three chapters: the labour market of scientists and engineers, the incentives for innovation in the private sector and the existence of spatial spillovers in the school to work transition for graduates in science and engineering (S & I). In the first chapter of this thesis, we focus on the labour market for scientists and engineers. First, we identify the different characteristics of this labour market. We then analyze the determinants of access to R & D for young graduates in S & I. Finally, we question more broad…
Individual and Contextual Determinants of Cruise Passengers’ Behavior at Their Destination: A Survival Approach
2020
The proposed study will present an analysis of cruise passengers’ behavior at their destination. Mobility behavior will be analyzed in relation to socio-demographic characteristics through a survival modeling approach. Data collected through GPS devices on cruise passengers’ behavior in the ports of Palermo and Dubrovnik will be analyzed in order to determine similarities and differences among cruise passengers’ behaviors at their destination, according to socio-demographic characteristics. The authors of this chapter contend that the results of this research, involving the processing and the analysis of GPS data, will be of interest from methodological and destination management perspectiv…