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Cano Sevilla, Francisco Jose ; Lázaro, L. ; Luna, G. ; Marin, E. ; Martín, J. ; Rio del, A. ; Santesmases , J. G. ; Yurramendi, Y. | Springer-Verlag | 1988This paper shows the steps we have taken in order to define and design a first prototype of an expert system aimed at the general practitioner. The first part is devoted to analyze the systemic approach we gave to the definition problem. Also ar[...]texto impreso
Lacy de, María Clara ; Rodríguez Caderot, Gracia ; Marin, E. ; Ruíz, A. ; Borque, María Jesús ; Gil, A. J. ; Biagi, L. | Springer | 2001Two new GPS surveys have been carried out to check the accuracy of an existing gravimetric geoid in a test area located in northern Andalusia (Spain). The fast collocation method and the remove-restore procedure have been used for the computatio[...]texto impreso
Marin, E. ; Pérez-Amaral, Teodosio ; Rúa, A. ; Hernández, E. | Facultad de Ciencias Económicas y Empresariales. Instituto Complutense de Análisis Económico (ICAE) | 2000The temporal evolution of pH values in precipitation over Europe during the period 1986-1997 is examined using panel data. The use of panel data techniques allows us to detennine the temporal evolution of groups of stations rather than analysing[...]
