Diseño de un modelo de red domótica libre basada en componentes OpenDomo para aplicación a un pequeño hotel

El objeto de este proyecto es crear un diseño tipo de instalación domótica para un hotel de hasta 100 habitaciones, basada en componentes OpenDomo y fundamentalmente en el controlador ODControl. El modelo de instalación propuesto está orientado principalmente al ahorro energético y, por tanto, al control de los principales elementos que tienen impacto sobre el ahorro, esto es: la iluminación y la climatización del hotel.

Creación de red de sensores de monitorización

Creación de red de sensores y sistemas de monitorización para la Autoridad Portuaria de Gijón.

Estudio de implantación de red y servicios Linux

Creación de una estructura de red que permita redireccionar el tráfico entre las redes WLAN y hacia Internet desde un punto central de un centro educativo, de forma que sea dinámico realizar cambios sobre la configuración desde una sola máquina.

Implantación de un modelo de red abierta tipo mesh para propagar el acceso libre al servicio de biblioteca y contenidos abiertos

Implantación de un modelo de red abierta tipo mesh para propagar el acceso libre al servicio de biblioteca y contenidos abiertos.

Diel pattern of Chironomids drift in the Llobregat river

Drift has recived considerable attention in recent times as a method to collect chironomid pupal exuviae (COFFMAN, 1973; LAVILLE, 1979, 1981) for taxonomie as well as water pollution studies (WILSON, 1977).

Assessment of the water chemistry and the macroinvertebrate community changes produced during the creation of the new Llobregat river mouth (Barcelona, NE Spain)

In 1999, a set of coordinated projects and investments whose principal objective was to transform Barcelona into one of the main distribution points of southern Europe resulted in the relocation of the Llobregat River mouth. The mouth was relocated by draining the old river mouth and constructing a new one. The aim of this study was to characterise the physico-chemical properties and the aquatic macroinvertebrate communities of the new river mouth and to monitor the changes experienced by the estuarine environment during its creation. A sampling point was established in the river 1.8 km upstream from its connection with the new mouth, and two sampling points were established in the new mouth. Samples of water and macroinvertebrates were collected every two months from May 2004 to June 2005, covering the periods before (from May to September 2004) and after (from September 2004 to June 2005) the new mouth was connected to the river and the sea. During the period before its connection to the river and the sea, the new mouth was functionally similar to a lagoon, with clear waters, charophytes and a rich invertebrate community. After the connection was completed, seawater penetrated the river mouth and extended to the connection point with the river (approximately 3.9 km upstream). An increase in conductivity from 4-6 mS cm 1 to 24-30 mS cm 1 caused important changes in the macroinvertebrate community of the new mouth. An initial defaunation was followed by a colonisation of the new mouth by brackish-water and marine invertebrate species. Due to its design (which allows the penetration of the sea) and the decreased discharge from the lower part of the Llobregat River, the new mouth has become an arm of the sea

Redes sociales y negocios. La red de inversión del Banco de Barcelona en la economía catalana a mediados del siglo XIX

The appearance of the Banco de Barcelona involved the formation of an investment compact network between its directors. In this work we studied how this investment network grew within a larger one, the one formed by the major investors in Catalonia during the period 1815-1866, as well as the role played by the top executives of the Bank inside it. Our findings indicate that some of the directors of the Bank held a central position in the main Catalan investors" network. This important role guaranteed reliable information on the progress of businesses. This information not only favored the operations of the institution, but also allowed its directors to take investment decisions inside the network. Moreover, the Bank interconnects individuals who were associated with different investors" sectors, which made the institution coalesced around an investing core with different important influences and connections.

Plasma homocysteine and vitamin B12 serum levels, red blood cell folate concentrations, C677T methylenetetrahydrofolate reductase gene mutation and risk of recurrent miscarriage: a case-control study in Spain.

Background: Hyperhomocysteinemia and methylenetetrahydrofolate reductase (MTHFR) gene mutation have been postulated as a possible cause of recurrent miscarriage (RM). There is a wide variation in the prevalence of MTHFR polymorphisms and homocysteine (Hcy) plasma levels among populations around the world. The present study was undertaken to investigate the possible association between hyperhomocysteinemia and its causative genetic or acquired factors and RM in Catalonia, a Mediterranean region in Spain. Methods: Sixty consecutive patients with ≥ 3 unexplained RM and 30 healthy control women having at least one child but no previous miscarriage were included. Plasma Hcy levels, MTHFR gene mutation, red blood cell (RBC) folate and vitamin B12 serum levels were measured in all subjects. Results: No significant differences were observed neither in plasma Hcy levels, RBC folate and vitamin B12 serum levels nor in the prevalence of homozygous and heterozygous MTHFR gene mutation between the two groups studied. Conclusions: In the present study RM is not associated with hyperhomocysteinemia, and/or the MTHFR gene mutation.

Evaluation of markets for irrigation water in the internal river basins of Catalonia, Spain

Irrigated agriculture has come under close scrutiny in Europe recently because of its high share of total water consumption and its apparent inefficiency. Several water policies have been advocated, in particular the use of economic instruments such as water markets. This paper simulates the impact of a policy based upon water markets on agricultural production in the internal river basins of Catalonia (Spain). This zone presents certain particularities that make it very interesting to study: competition between sectors for the resource (agriculture-urban consumption-recreational uses), recent periods of resource insufficiency and conflicts between irrigators as a result of the measures taken by the hydraulic administration in drought situations. The results show that these markets would guarantee an optimal reassignment of the resource in situations of supply restrictions, and although compared to the situation without markets they would not mean higher economic profits for the irrigators, they could prevent conflicts between them. Nevertheless, doubts exist about their acceptance by irrigators

Las Herramientas de comunicación social en la red y las relaciones personales : el caso de los universitarios chinos

Se expone una breve evolución histórica del surgimiento de las nuevas herramientas de comunicación social en la red de la República Popular China, incidiendo en los incesantes avances de la evolución tecnológica y las tendencias de desarrollo que han experimentado los servicios de redes sociales. Se hace un análisis de las consecuencias que conlleva el uso de las redes sociales en las relaciones personales de los universitarios chinos. Se investiga los motivos y la frecuencia de uso de las redes sociales, así como las implicaciones de las interacciones virtuales en la forma de relacionarse con el entorno social. Así mismo, se profundiza en las influencias positivas y negativas que provoca la expansión de las redes sociales en la vida universitaria china.

El poblament tardoantic al sector meridional de la Tarraconensis (sud de Catalunya i nord del País Valencià). Concomitàncies i diferències

Les darreres recerques dutes a terme en el Projecte Ager Tarraconensis (PAT) han permès augmentar considerablement els coneixements existents sobre l’antiguitat tardana al territorium de Tarraco, tema que ja havíem estudiat parcialment en la nostra tesi doctoral (1992), que inclou també altres àrees del Camp de Tarragona no incloses al PAT. D’altra banda, en els darrers anys hem tingut també ocasió d’estudiar parcialment el poblament antic a la zona de les terres de l’Ebre i al nord del País Valencià, molt especialment a les comarques de l’Alt Palància i la Plana de Castelló. El conjunt d’aquests estudis ens permet plantejar una visió general sobre el poblament tardoantic en una zona determinada que correspon a la part costanera meridional de l’antiga provincia Tarraconensis, amb els límits i la denominació que rep a partir de la divisió de Dioclecià. L’estudi comparatiu del poblament tardoantic d’aquestes àrees permet contrastar, a més de punts en comú, també algunes diferències, tant en el diferent grau de pervivència dels hàbitats després de la crisi del segle III com en l’aparició de nous tipus d’hàbitats (poblats en altura) que no apareixen en totes les àrees, sinó només en les més meridionals. S’aborda també la problemàtica de l’existència d’unes poques vil·les luxoses durant el segle IV (especialment la controvertida de Centcelles), en contrast amb altres hàbitats més modestos, així com el pas de la vil·la a un altre tipus de poblament dispers.

Differential effects of polyphenols and alcohol of red wine on the expression of adhesion molecules and inflammatory cytokines related to atherosclerosis: a randomized clinical trial

Background: Few clinical studies have focused on the alcoholindependent cardiovascular effects of the phenolic compounds of red wine (RW). Objective: We aimed to evaluate the effects of ethanol and phenolic compounds of RW on the expression of inflammatory biomarkers related to atherosclerosis in subjects at high risk of cardiovascular disease. Design: Sixty-seven high-risk, male volunteers were included in a randomized, crossover consumption trial. After a washout period, all subjects received RW (30 g alcohol/d), the equivalent amount of dealcoholized red wine (DRW), or gin (30 g alcohol/d) for 4 wk. Before and after each intervention period, 7 cellular and 18 serum inflammatory biomarkers were evaluated. Results: Alcohol increased IL-10 and decreased macrophage-derived chemokine concentrations, whereas the phenolic compounds of RW decreased serum concentrations of intercellular adhesion molecule- 1, E-selectin, and IL-6 and inhibited the expression of lymphocyte function-associated antigen 1 in T lymphocytes and macrophage-1 receptor, Sialil-Lewis X, and C-C chemokine receptor type 2 expression in monocytes. Both ethanol and phenolic compounds of RW downregulated serum concentrations of CD40 antigen, CD40 ligand, IL-16, monocyte chemotactic protein-1, and vascular cell adhesion molecule-1. Conclusion: The results suggest that the phenolic content of RW may modulate leukocyte adhesion molecules, whereas both ethanol and polyphenols of RW may modulate soluble inflammatory mediators in high-risk patients. The trial was registered in the International Standard Randomized Controlled Trial Number Register at http://www. isrctn.org/ as ISRCTN88720134

Differential effects of polyphenols and alcohol of red wine on the expression of adhesion molecules and inflammatory cytokines related to atherosclerosis: a randomized clinical trial

Background: Few clinical studies have focused on the alcoholindependent cardiovascular effects of the phenolic compounds of red wine (RW). Objective: We aimed to evaluate the effects of ethanol and phenolic compounds of RW on the expression of inflammatory biomarkers related to atherosclerosis in subjects at high risk of cardiovascular disease. Design: Sixty-seven high-risk, male volunteers were included in a randomized, crossover consumption trial. After a washout period, all subjects received RW (30 g alcohol/d), the equivalent amount of dealcoholized red wine (DRW), or gin (30 g alcohol/d) for 4 wk. Before and after each intervention period, 7 cellular and 18 serum inflammatory biomarkers were evaluated. Results: Alcohol increased IL-10 and decreased macrophage-derived chemokine concentrations, whereas the phenolic compounds of RW decreased serum concentrations of intercellular adhesion molecule- 1, E-selectin, and IL-6 and inhibited the expression of lymphocyte function-associated antigen 1 in T lymphocytes and macrophage-1 receptor, Sialil-Lewis X, and C-C chemokine receptor type 2 expression in monocytes. Both ethanol and phenolic compounds of RW downregulated serum concentrations of CD40 antigen, CD40 ligand, IL-16, monocyte chemotactic protein-1, and vascular cell adhesion molecule-1. Conclusion: The results suggest that the phenolic content of RW may modulate leukocyte adhesion molecules, whereas both ethanol and polyphenols of RW may modulate soluble inflammatory mediators in high-risk patients. The trial was registered in the International Standard Randomized Controlled Trial Number Register at http://www. isrctn.org/ as ISRCTN88720134

Rapid analysis of multiclass antibiotic residues and some of their metabolites in hospital, urban wastewater and river water by ultra-highperformance liquid chromatography coupled to quadrupole-linear ion trap tandem mass spectrometry

The present work describes the development of a fast and robust analytical method for the determination of 53 antibiotic residues, covering various chemical groups and some of their metabolites, in environmental matrices that are considered important sources of antibiotic pollution, namely hospital and urban wastewaters, as well as in river waters. The method is based on automated off-line solid phase extraction (SPE) followed by ultra-high-performance liquid chromatography coupled to quadrupole linear ion trap tandem mass spectrometry (UHPLC–QqLIT). For unequivocal identification and confirmation, and in order to fulfill EU guidelines, two selected reaction monitoring (SRM) transitions per compound are monitored (the most intense one is used for quantification and the second one for confirmation). Quantification of target antibiotics is performed by the internal standard approach, using one isotopically labeled compound for each chemical group, in order to correct matrix effects. The main advantages of the method are automation and speed-up of sample preparation, by the reduction of extraction volumes for all matrices, the fast separation of a wide spectrum of antibiotics by using ultra-high-performance liquid chromatography, its sensitivity (limits of detection in the low ng/L range) and selectivity (due to the use of tandem mass spectrometry) The inclusion of β-lactam antibiotics (penicillins and cephalosporins), which are compounds difficult to analyze in multi-residue methods due to their instability in water matrices, and some antibiotics metabolites are other important benefits of the method developed. As part of the validation procedure, the method developed was applied to the analysis of antibiotics residues in hospital, urban influent and effluent wastewaters as well as in river water samples

La empresa red: un modelo de división del trabajo entre empresas

La empresa red constituye un modelo de empresa formado a partir de una constelación de pequeñas empreses jurídicamente independientes pero coordinadas por un mismo ciclo de producción. Estan articuladas por pautas, normas y leyes consuetudinarias, así como vinculadas a la comunidad local y a las redes de parentesco, amistad y vecindad. En este estudio se exponen los efectos de dicho modelo de empresa sobre la dualización del mercado de trabajo y de las relaciones laborales. Asimismo, ilustra sobre uno de los procedimientos de reorganización social de la producción.