Results 71 to 80 of about 120,885 (231)
El verano de 2022 se distinguió por ser una de las peores temporadas de incendios en la Europa Mediterránea debido a las repetidas olas de calor con temperaturas que superaron los 40ºC, resultando en incendios de gran magnitud, especialmente en España ...
Marcos Rodrigues, Juan de la Riva
doaj +1 more source
Los rápidos cambios socioeconómicos globales ocurridos durante la segunda mitad del siglo XX transformaron radicalmente el sistema de gestión territorial en el ámbito rural de la montaña mediterránea y, concretamente, en el Prepirineo oscense.
A. Heredia-Laclaustra+2 more
doaj +1 more source
Política del suelo urbano y ordenación del territorio [PDF]
Política del suelo urbano y ordenación del ...
Terán, Fernando de
core +1 more source
A note on del Pezzo fibrations of degree 1 [PDF]
We study del Pezzo fibrations of degree 1 with terminal singularities. A connection between singularities on del Pezzo surfaces of degree 1 and Kodaira's classification of elliptic singular fibers will be studied in this paper. By this investigation we obtain several results on birational maps of del Pezzo fibrations of degree 1 with terminal ...
arxiv
Towards the Spanish local urban agenda. The evolution of urban regeneration in Spain (2014-2022)
The paper provides an analysis of the difference in the tools adopted in the Spanish urban policies between the two last EU programming cycles (2014–2020 and 2021–2027).
Federico Camerin+3 more
doaj +1 more source
Explorando el uso de métricas espaciales para identificar “entornos de movilidad” urbanos
El objetivo de alcanzar una mayor sostenibilidad en la planificación del transporte urbano ha sido una de las principales razones en el desarrollo de conceptos orientados a vincular de manera efectiva estructura urbana y sistema de transporte.
Julio Alberto Soria-Lara+2 more
doaj +1 more source
Weak Approximation for General Degree Two del Pezzo Surfaces [PDF]
We address weak approximation for certain del Pezzo surfaces defined over the function field of a curve. We study the rational connectivity of the smooth locus of degree two del Pezzo surfaces with two A1 singularities in order to prove weak approximation for degree two del Pezzo surfaces with square-free discriminant.
arxiv
Del Pezzo surfaces with Du Val singularities [PDF]
In this paper we study the problem of existence of orbifold Kaehler-Einstein metrics on del Pezzo surfaces of degree 1 with Du Val singular points. Moreover we compute global log canonical thresholds of del Pezzo surfaces of degree 1 with Du Val singularities and of del Pezzo surfaces of Picard rank 1 with Du Val singularities.
arxiv
The impaired condition of agriculture, and of periurban agricultural areas in particular, necessarily requires a switch in the direction imposed by the contemporary metropolitan model, using the opportunities offered by social participation, meant as ...
A. Matarán Ruiz+9 more
doaj +1 more source
Cylinders in del Pezzo surfaces with du Val singularities [PDF]
We consider del Pezzo surfaces with du Val singularities. We'll prove that a del Pezzo surface $X$ with du Val singularities has a $-K_X$-polar cylinder if and only if there exist tiger such that the support of this tiger does not contain anti-canonical divisor. Also we classify all del Pezzo surfaces $X$ such that $X$ has not any cylinders.
arxiv