A Distributed Operational Semantics for a Parallel Functional Language

We present an operational semantics for a functional parallel language with explicit process creation and implicit message-passing communication. The semantics is based on a distributed memory model and is effective for investigating the interplay between laziness and eagerness in the language, as well as for measuring speculative parallelism

Continutation Semantics for Parallel Haskell Dialects.

The aim of the present work is to compare, from a formal semantic basis, the different approaches to the parallelization of functional programming languages. For this purpose, we define a continuation semantics model which allows us to deal with side-effects and parallelism. To verify the suitability of our model we have applied it to three programming languages that introduce parallelism in very different ways, but whose common functional kernel is the lazy functional language Haskell

Associative and productive strategy for the fish farming sector in Cumbal and Potosí, Nariño.

Introducción: La pesca y la acuicultura apoyan el desarrollo de las comunidades rurales locales en el país, ya que estas actividades proporcionan sustento económico. Son vitales para la economía de los agricultores rurales y las comunidades indígenas, porque son parte de las economías familiares con producción a pequeña y mediana escala. Objetivos: Proponer estrategias que combinen la cooperación mutua, la visibilidad externa y los resultados productivos, que fomenten la asociatividad y creen un ambiente que fomente la transferencia de conocimiento, fomente las relaciones sociales y mejore la productividad de los pequeños y medianos productores de trucha ubicados en Cumbal y Potosí Nariño. Métodos: los factores antes mencionados se midieron en la calidad y competitividad de la cadena productiva. El estudio adoptó un enfoque mixto que comprende la recopilación, el análisis y la correlación de datos cuantitativos y cualitativos en un solo estudio para abordar el enunciado del problema en un caso de fortalecimiento asociativo y productivo de 40 pequeños y medianos productores de trucha. Resultados y conclusiones: El estudio encontró que, como estrategia asociativa, la dirección estratégica en la red de negocios proporciona acciones claras para el desarrollo como organización y al mismo tiempo permite consolidar un método de pensar y sentir como un todo, facilitando el desarrollo del sector como una entidad organizacional autorregulada que genera acciones a corto y mediano plazo para cumplir con sus objetivos comunes. Esto se refleja en la mejora de la productividad y la estandarización de los procesos y procedimientos que, en conjunto, contribuyen a mejorar la productividad y la competitividad del sector rural.Introduction: Fishing and aquaculture support the development of local rural communities in the country as these activities provide economic sustenance. They are vital for the economy of rural farmer and indigenous communities, because they are part of family economies with small- and medium-scale production. Aims: To proposed strategies combining mutual cooperation, external visibility, and productive results, which encourage associativity and create an environment that encourages knowledge transfer, fosters social relationships, and improves productivity small and medium trout farmers located in Cumbal and Potosí Nariño. Methods: The aforementioned factors were measured in the productive chain’s quality and competitiveness. The study adopted a mixed approach comprising collection, analysis, and correlating quantitative and qualitative data in a single study to address the problem statement in a case of the associative and productive strengthening of 40 small and medium trout farmers. Results and conclusions: The study found that, as an associative strategy, the strategic direction in the business network provides clear actions for the development as an organization and simultaneously allows to consolidate a method of thinking and feeling as a whole, facilitating the development of the sector as a selfregulated organizational entity that generates actions in the short and medium term to meet its common objectives. This is reflected in the improvement in productivity and standardization of processes and procedures that together contribute to improving the productivity and competitiveness of the rural sector

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ANTONIO ARMESTO AIRA (ed.) - Escritos fundamentales de Gottfried Semper. El fuego y su protección

ANTONIO ARMESTO AIRA (ED.) Escritos fundamentales de Gottfried Semper. El fuego y su protección Traducción de Manuel García Roig Barcelona: Fundación Arquia, “arquia/temas 37”, 2014, 375 págs. Idioma: castellano&nbsp

WELFARE STATE. SOCIOLOGICAL AESTHETICS

Yolanda Ortega Sanz is an architect and associate professor at Polytechnic School, Universitat de Girona, Catalonia, Spain; where she teaches architectural design. Ortega was educated at School of architecture in Barcelona and Arkitektskolen i Aarhus, Denmark. Later on, she received a grant to be a young researcher at Danmarks Kunstbibliotek, Copenhagen. Currently, she is PhD Candidate in the research group FORM where she develops her thesis entitled “Nordic assembly” focus on Modern Architecture in Nordic countries. Her research has been published and presented in several conferences as: 1st International Conference on contemporary architects: Jørn Utzon, Sevilla, Spain; 1st Conference on architectural competition, Nordic Symposium, KTH, Stockholm, Sweden; or Responsibilities and Opportunities in Architectural Conservation, CSAAR, Amman, Jordan

IÑAKI BERGERA - Fotografía y arquitectura. La imagen del espacio construido

Iñaki BergeraFotografía y arquitectura. La imagen del espacio construidoMadrid: Turner (colección Noema), 2023. 360 pp. Prologue by Luis Fernández Galiano. Softcover. Language: Spanish. 22,90 €ISBN: 978-84-18895-87-6Iñaki BergeraFotografía y arquitectura. La imagen del espacio construido Madrid: Turner (colección Noema), 2023. 360 pp. Prólogo de Luis Fernández Galiano. Tapa blanda. Idioma: español. 22,90 €ISBN: 978-84-18895-87-

High Power Ultrasound to Recover Fine Particles in Flotation Process

9 pages, 6 figures.-- Communication presented at: Forum Acusticum Sevilla 2002 (Sevilla, Spain, 16-20 Sep 2002), comprising: 3rd European Congress on Acoustics; XXXIII Spanish Congress on Acoustics (TecniAcústica 2002); European and Japanese Symposium on Acoustics; 3rd Iberian Congress on Acoustics.-- Special issue of the journal Revista de Acústica, Vol. XXXIII, year 2002.The flotation process to recover useful substances from minerals has been used for dozens of years. For the flotation, air bubbles in a water solution of finely ground mineral particles must be introduced. The particles were prepared with chemical substances (surfactants) to be caught by the bubbles.Some attempts were made to improve the whole process, the best results reported were obtained for a technique called the "high energy" flotation experiments, [1] [2][3]. It seems that the recovering of the useful substances can be improved if some energy can be injected to the reactor with the metallurgic pulp. This suggests that an ultrasonic field can also improve the recovering in flotation. In this paper an application of acoustic cavitation to the flotation process is explored.The authors would like to thank the financial support of project FONDECYT 1010243.Peer reviewe