A new attempt at an ecological classification of land utilization systems
After a brief review of previous classifications, the A. advocates an approach for an ecologically-based classification of utilization systems, consisting of two elements : one describing the productive environment, and the other describing the main
Restrictions in the re-utilization of former military land
The A. deals with the most important restrictions on the re-utilization. Handing over military land involves problems of combining the actual handover with the architectural planning on the part of local councils. One problem, in particular
Discussion of problems often encountered by Spanish speakers and others when attempting to utilize geographical information systems. Reviews two pilot studies in Ecuador.―(DWG)
Demand ; Economic model ; Model ; Periodic market ; Supply ; Utility fonction
by week and determines how much of each good to produce weekly by maximising a utility fonction whose choice variables are the times needed for the production of the two goods and also leisure time.
The main objectives of this study are : 1) to characterize the fire regime of an area of montane forest in the Colorado Front Range; and 2) to compare the utility of the different methods of dating fires in these forests.
Le vol spatial de la navette Atlantis, commencé le 24 mars 1992, a concerné la Belgique, dont des chercheurs assumaient un quart de l'ensemble des expériences pour l'étude de l'atmosphère qui formait la première charge utile du programme
The aim is to study ways of turning conversion into a positive economic factor in the region. The process and the result of re-utilization are to have a highly beneficial effect on the labour market and provide impulses for change in the economic
This paper assesses the utility of statistical models by examining methodological issues associated with empirical analysis of hydraulic and channel geometry relationships. It also describes and presents examples of advanced statistical models
The present study utilizes area-perimeter measurements to determine if perimeters of sinkholes are fractals. The perimeter-number and area-number distributions of sinkhole populations are also evaluated for fractal characteristics. The sites
Des observations faites au Maroc montrent que les marchés périodiques peuvent être utiles aussi bien pour les commerçants que pour les consommateurs dans des sociétés présentant un pouvoir d'achat satisfaisant. Le système des marchés périodiques ne