Proposta metodològica per afavorir el treball en equip en assignatures semipresencials que comporten la realització de projectes d’enginyeria amb un alt contingut de disseny

Aquest projecte ha tingut com a finalitat principal impulsar un aprenentatge més efectiu dels alumnes en assignatures que, impartides en una modalitat semipresencial, comporten la realització d’un treball de curs amb un alt contingut de disseny. Paral·lelament es contribueix a millorar el rendiment acadèmic de l’ estudiant, en el marc de la millora global de la docència i de l’aprenentatge a la UPC amb un horitzó d’ aproximació als elements que conformen l’ Espai Europeu d’ Educació Superior. En el context de semipresencialitat, es pretén fomentar l’aprenentatge cooperatiu i donar solució als problemes comunicatius existents a nivell d’intercanvi d’opinions, valoracions i formulació de dubtes vinculats amb el disseny, etc. En aquest projecte, doncs, s’ha creat una metodologia de treball que permet intercanviar informació gràfica (per exemple en format Autocad) a partir de les aplicacions ja incloses en la plataforma virtual Atenea (campus virtual de la UPC). Aquest projecte es basa en tres objectius principals: 1. Millorar l'intercanvi d'informació entre alumnes d’un grup i entre els alumnes i el professor mitjançant el desenvolupament de protocols. 2. Fomentar l’aprenentatge cooperatiu mitjançant la integrar d’eines d’interacció instantània per internet. 3. Adaptar l’assignatura de “Complexos Industrials” al procés de convergència a l’EEES.Peer Reviewe

Modelling process generated nanoparticles in industrial workplaces using reduced order models

Las nanopartículas generadas en procesos (PGNP) son nanomateriales liberados de manera inintencionada en ambientes de trabajo durante procesos de alta energía como la quema de combustibles, el corte por plasma, la soldadura, el pulido de metales o la cocción de productos cerámicos. Actualmente, no existen herramientas de avaluación de riesgos para la exposición a PGNP en ambientes industriales. Como consecuencia, no se puede evaluar la exposición de los trabajadores a este tipo de contaminantes. En este contexto, hay una necesidad de desarrollar modelos para simular las concentraciones de PGNP en espacios interiores. Debido al tamaño de las PGNP (<100 nm) su comportamiento es comparable al de las moléculas de gases ideales. Por ello, se podrían usar modelos reducidos actualmente usados para simular la concentración de CO2 en espacios interiores, para simular las concentraciones de PGNP en dichos ambientes. El objetivo de este artículo es evaluar la posibilidad de crear modelos predictivos para un espacio interior usando modelos reducidos para estimar concentraciones futuras de PGNP. Primero se define el modelo, posteriormente usando la literatura se determinarán los parámetros y finalmente, el modelo se validará usando datos obtenidos de una ubicación industrial. Este trabajo está financiando por el programa LIFE (LIFE20 ENV/ES/000187).La investigación presentada en este artículo esta financiada por el programa LIFE (LIFE20 ENV/ES/000187).Objectius de Desenvolupament Sostenible::9 - Indústria, Innovació i InfraestructuraObjectius de Desenvolupament Sostenible::3 - Salut i BenestarPostprint (published version

Algunas consideraciones sobre la Homeopatía : Tesis leída y defendida ante la Facultad de Medicina de Buenos Aires para obtener el grado de Doctor en Medicina

El autor es profesor de Medicina y Cirugía en Montevideo. - La Tesis Incluye nómina de Catedráticos y Asignaturas. Tesis dedicad

Optimizing a Protocol to Assess Immune Responses after SARS-CoV-2 Vaccination in Kidney-Transplanted Patients: In Vivo DTH Cutaneous Test as the Initial Screening Method

Previously, the delayed-type hypersensitivity (DTH) cutaneous test with the spike protein of SARS-CoV-2 has been shown to be a simple in vivo method to measure T-cell functionality after natural infection and in vaccinated individuals. Methods: Twenty-five kidney-transplanted recipients were immunized with two doses of the mRNA-based Pfizer–BioNTech COVID19 vaccine three weeks apart. Cell-immune response (CIR) was evaluated ten weeks later using an in vivo DTH skin test and in vitro with an interferon gamma release assay (IGRA). Humoral Immune Response (HIR) was determined by the measurement of specific IgG anti-S1 SARS-CoV-2. Results: Ten weeks after the second dose of the vaccine, 23 out of 25 transplanted patients had a positive DTH skin test, while in vitro CIR was considered positive in 20 patients. Unspecific stimulation was positive in all 25 patients, showing no T-cell defect. Seven out of twenty-five patients had a negative specific anti-spike IgG. CIR was positive in all immune-competent control patients. Conclusions: DTH is a useful, simple, and cheaper tool that can be used to assess cellular immune response, with an excellent correlation with the in vitro CIR. CIR assessment after vaccination in these immunocompromised patients is an excellent complement to HIR-based methods. This skin test could be used if classical in vitro methods cannot be applied

Identifying potential environmental impacts at the pre-construction stage

This paper introduces a systematic approach for dealing with potential adverse environmental impacts at the pre-construction stage. The proposed methodology serves as an assessment tool for construction projects to measure the environmental performance of their construction activities. It also provides a consistent basis for comparisons and for future eco-labelling and environmental benchmarking among construction companies and constructies sites. Within the methodological framework, nine categories of environmental aspects are proposed: atmospheric emissions; water emissions; waste generation; soil alteration; resource consumption; local issues; transport issues, effects on biodiversity; and incident, accidents and potential emergency situations. The methodology includes twenty performance indicators developed with the help of a panel of experts. In order to avoid a typical shortcoming in environmental assessments methods, these environmental project documents. Significance limits for environmental aspects are also developed based on a statistical analysis of 55 new-start construction projects. Two case studies are provided to illustrate the practical use of the proposed methodology.Peer Reviewe

A methodology for predicting the severity of environmental impacts related to the construction process of residential buildings

Peer Reviewe

Assessing concerns of interested parties when predicting the significance of environmental impacts related to the construction process of residential buildings

The most common challenges and obstacles encountered by construction organizations during the process of implementing and using environmental management systems are related to the inherent peculiarities of the construction sector. Several studies have shown that one of the issues involving the greatest level of uncertainty is the identification and assessment of environmental impacts. In order to improve the identification of the significance of environmental impacts of construction projects and sites, which will lead to greater efficiency and robustness in environmental management systems, this paper extends the systematic approach for identifying and assessing potential adverse environmental impacts at the pre-construction stage presented in Gangolells et al. (2009) by introducing the assessment of the concerns of interested parties. By considering concerns amongst internal and external interested parties, one can assess the significance of environmental impacts taking into account not only the severity of the impacts but also local perceptions and international challenges, thereby ensuring that the determination of the impacts’ significance is appropriate to the particular socioeconomic and biophysical environments surrounding construction sites. In order to quantitatively measure concerns among internal and external interested parties for each of the 37 environmental impacts related to a construction project, we developed corresponding indicators and assessment scales with the help of a panel of experts. A series of χ2 tests conducted over 76 new-start construction projects clearly revealed that the severity of environmental impacts is not correlated with the concerns of interested parties. The development of a formal quantitative method and the subsequent definition of a threshold make it possible to obtain advance knowledge of the significance – and, therefore, the acceptability – of each potential environmental impact for a particular construction project. A total score for each construction project alternative is also obtained, so the improved methodology provides a consistent basis for comparing construction companies and construction sites. Finally, two case studies are presented in order to demonstrate the benefits of the improved methodology.Peer Reviewe

Identifying potential environmental impacts at the pre-construction stage

This paper introduces a systematic approach for dealing with potential adverse environmental impacts at the pre-construction stage. The proposed methodology serves as an assessment tool for construction projects to measure the environmental performance of their construction activities. It also provides a consistent basis for comparisons and for future eco-labelling and environmental benchmarking among construction companies and constructies sites. Within the methodological framework, nine categories of environmental aspects are proposed: atmospheric emissions; water emissions; waste generation; soil alteration; resource consumption; local issues; transport issues, effects on biodiversity; and incident, accidents and potential emergency situations. The methodology includes twenty performance indicators developed with the help of a panel of experts. In order to avoid a typical shortcoming in environmental assessments methods, these environmental project documents. Significance limits for environmental aspects are also developed based on a statistical analysis of 55 new-start construction projects. Two case studies are provided to illustrate the practical use of the proposed methodology.Peer ReviewedPostprint (published version