Search results for "35"
showing 10 items of 2413 documents
Innovación y actores locales en los nuevos espacios económicos: Un estado de la cuestión
2003
El estudio de los procesos de innovación en los nuevos espacios económicos caracterizados por la aglomeración de actividades productivas especializadas y estrechas relaciones de colaboración/competencia entre agentes (distritos industriales, sistemas productivos locales, medios innovadores, etc.) es un ejemplo del «giro» relacional que se ha producido en la geografía económica desde los años 1990. El presente artículo repasa algunas de las principales características del estudio de los denominados «sistemas territoriales de innovación», centrándose especialmente en el análisis de algunas cuestiones que están sujetas a debate y en los problemas metodológicos que se derivan de la nueva perspe…
Food Waste: Treatments, Environmental Impacts, Current and Potential Uses
2021
Food waste is a major environmental and social concern, and its impact will most likely increase as the population grows [...]
El litoral turístico valenciano. Intereses y controversias en un territorio tensionado por el residencialismo
2011
El artículo quiere analizar, valorar y comprender el fortísimo oleaje inmobiliario que ha conocido el litoral valenciano en los últimos años (1998-2008) y sus repercusiones sobre el territorio turístico. Importará, desde el análisis geográfico, acercarse al planteamiento territorial y político, en sus vertientes urbanísticas y turísticas, así como a los procesos y estrategias de cambio en los destinos, sean estos manifiestamente turísticos o relevantemente residenciales. Se pretende también cuantificar a escala municipal el impacto de dicha explosión inmobiliaria-residencial y, por supuesto, incidir objetivamente en las controversias derivadas del llamado «milagro económico valenciano».
Current European approaches in highway runoff management: A review
2022
Highway runoff is one of the most significant non-point sources of pollution for the terrestrial and aquatic environment with biological, physical, and chemical effects. Considering local characteristics, treatment practices, and determining factors are essential for highway runoff management. The aim of this paper is to survey the review of highway runoff management in Europe with emphasis on runoff characterization, treatment, and modeling approaches and identifying possible knowledge gaps exists based on our review. The results showed that highway runoff has spatiotemporal variation, which is the main factor in the regional selection of the best management practice (BMP). Also, recent st…
La percepción del cambio climático e infecciones respiratorias agudas en adultos mayores, algunos casos veracruzanos
2013
El objetivo del presente artículo es mostrar cuál es la percepción que tiene la población de 60 años y más en dos localidades de Veracruz: una urbana y la otra rural, con relación al cambio climático y sus efectos sobre el bienestar y la salud. Asimismo, se georeferencia a los adultos mayores en relación al crecimiento exponencial por municipio; a la vez se hacen diversos cruces con las oscilaciones térmicas que se presentan en el estado. Todo ello, desde un enfoque interdisciplinario que busca inducir algunas tendencias sobre el cambio climático natural (Aguirre, 2005), sobre ciertos fenómenos estudiados por la geografía médica (Olivera, 1993), y sobre otros modelos geriátrico-demográficos…
The ABCflux database: Arctic–boreal CO2 flux observations and ancillary information aggregated to monthly time steps across terrestrial ecosystems
2022
Past efforts to synthesize and quantify the magnitude and change in carbon dioxide (CO2) fluxes in terrestrial ecosystems across the rapidly warming Arctic–boreal zone (ABZ) have provided valuable information but were limited in their geographical and temporal coverage. Furthermore, these efforts have been based on data aggregated over varying time periods, often with only minimal site ancillary data, thus limiting their potential to be used in large-scale carbon budget assessments. To bridge these gaps, we developed a standardized monthly database of Arctic–boreal CO2 fluxes (ABCflux) that aggregates in situ measurements of terrestrial net ecosystem CO2 exchange and its derived partitioned…
Plant communities, synusiae and the arithmetic of a sustainable classification
2022
We propose an equation to evaluate the efficiency of a classification as a function of the effort required and the population size of data collectors. The formula postulates a “classification efficiency coefficient”, which relates not only to the complexity of the object to be classified, but also to the data availability and representativeness. When applied to the classification of phytocoenoses, the equation suggests that a classification system based on vascular plants offers the best compromise between sampling effort, resolution power and data availability. We discuss the possibility of basing a vegetation classification on plot records for all macroscopic photoautotrophic organisms co…
About Supergraphs. Part III
2019
Summary The previous articles [5] and [6] introduced formalizations of the step-by-step operations we use to construct finite graphs by hand. That implicitly showed that any finite graph can be constructed from the trivial edgeless graph K 1 by applying a finite sequence of these basic operations. In this article that claim is proven explicitly with Mizar[4].
Echi dal mondo antico nel racconto della natività: il Protoevangelium Jacobi e il Liber de nativitate Salvatoris
2018
Residents’ Perception of the Impact of Sports Tourism on Sustainable Social Development
2022
The analysis of the social perception of citizens and evaluations of the impact of sport tourism and their support for tourism development can be of great use in the formulation of policies aimed at social cohesion and local development. These actions favor social participation and inclusion, equal opportunities, and more positive attitudes towards sports tourism and inclusive sport. This study aims to analyze the perception and predisposition towards the support of citizens on the impact of sport tourism from a multidimensional perspective. Specifically, this study evaluates the social perception on four measures: social impact, cultural impact, environmental impact, and local policies. Th…