Biogeography of Wood-Boring Crustaceans (Isopoda: Limnoriidae) Established in European Coastal Waters

Marine wood-borers of the Limnoriidae cause great destruction to wooden structures exposed in the marine environment. In this study we collated occurrence data obtained from field surveys, spanning over a period of 10 years, and from an extensive literature review. We aimed to determine which wood-boring limnoriid species are established in European coastal waters; to map their past and recent distribution in Europe in order to infer species range extension or contraction; to determine species environmental requirements using climatic envelopes. Of the six species of wood-boring Limnoria previously reported occurring in Europe, only Limnoria lignorum, L. quadripunctata and L. tripunctata are established in European coastal waters. L. carinata and L. tuberculata have uncertain established status, whereas L. borealis is not established in European waters. The species with the widest distribution in Europe is Limnoria lignorum, which is also the most tolerant species to a range of salinities. L. quadripunctata and L. tripunctata appear to be stenohaline. However, the present study shows that both L. quadripunctata and L. tripunctata are more widespread in Europe than previous reports suggested. Both species have been found occurring in Europe since they were described, and their increased distribution is probably the results of a range expansion. On the other hand L. lignorum appears to be retreating poleward with ocean warming. In certain areas (e.g. southern England, and southern Portugal), limnoriids appear to be very abundant and their activity is rivalling that of teredinids. Therefore, it is important to monitor the distribution and destructive activity of these organisms in Europe

Modalidades asociativas en el teatro argentino desde la teoría de las representaciones sociales

Caracterizamos aquí algunas modalidades asociativas de creación, producción y gestión propias del teatro alternativo argentino, basándonos en la observación del trabajo de 20 dramaturgos-directores-actores cuya franja etaria oscila entre los 30 y 40 años. En un periodo que coincide con el impacto social del neoliberalismo y con la crisis financiera de 2001 se producen nuevas formas de interrelación dentro del sistema del teatro, se observa un viraje hacia un artista-gestor hábil en el desarrollo de diferentes estrategias asociativas, como escritura en colaboración, rotación de roles, participación en colectivos teatrales. Esas modalidades se sostienen en una común concepción del teatro y para dar cuenta de ella recurrimos a la teoría de las representaciones sociales (Moscovici; Rose y Efraim; Monchietti), la cual ha cobrado interés como una de las principales perspectivas en las ciencias sociales. Ella nos permite ver a los artistas como partícipes de un grupo que comparte un campo representacional que lo particulariza dentro del vasto ámbito teatral. El consenso en las representaciones sociales no es un acuerdo banal entre los participantes, ni está exento de tensiones o fragmentaciones, aspecto que ejemplificamos en relación con las estrategias de comunicación empleadas por estos artistas, como el recurso a los agentes de prensa.In this lecture we will define several associative modalities of creation, production and management in the Argentine alternative theater, based on a study of the work of 20 playwrights-directors-actors whose age ranges between 30 and 40. In a period that coincides with the social impact of neoliberalism and the financial crisis of 2001, new forms of interaction within the theater system occur. A shift can be observed to an artist-manager that develops several strategies of association, such as collaborative writing, the rotation of roles and the participation in theater groups. These modalities are based on a shared understanding of theater. In order to describe this collective theater conception, we will use the theory of social representations Moscovici; Rose and Efraim; Monchietti), which has gained interest as one of the major perspectives in the social sciences. This theory will allow us to see the artists as participants in a group that shares a representational field, which sets them apart within the vast theatrical field. The consensus on social representations does not stem from an agreement among participants and nor is it free from tension and fragmentation. We will exemplify this last aspect with the communication strategies employed by these artists, such as the use of press agents.Fil: Rimoldi, Lucas Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Monchietti, Alicia Luisa. Universidad Nacional de Mar del Plata; Argentin

Building a test bed for simulation analysis for the internet of things

The current Internet of Things (IoT) solutions require support at different network layers, from higher level applications to lower level media-based support. The dissertation presents some of the main application requirements for IoT, characterizing architecture, Quality of Service (QoS) features, security mechanisms, discovery service resources and web integration options and the protocols that can be used to provide them (e.g. CoAP, XMPP, DDS, MQTT-SN, AMQP). As examples of lower-level requirements and protocols, several wireless network characteristics (e.g. ZigBee, Z-Wave, BLE, LoRaWAN, SigFox, IEEE 802.11af, NB-IoT) are presented. The variety of possible applications scenarios and the heterogeneity of enabling technologies combined with a large number of sensors and devices, suggests the need for simulation and modeling tactics to describe how the previous requirements can be met. As a potential solution, the creation of simulation models and the usage of the OMNET++ simulation tool to enable meaningful IoT simulation is discussed. The analysis of the behavior of IoT applications is proposed for two use cases: Wireless Sensor Networks (WSN) for home and industrial automation, and Low Power Wide Area (LPWA) networks for smart meters, smart buildings, and smart cities.info:eu-repo/semantics/publishedVersio

Stand-alone renewable energy auctions: The case of Peru

Electrification policies are crucial to improve the welfare of rural populationsworldwide. In this context, auctions for the deployment of stand-alone solar home systems (SASHS) are an appropriate alternative to facilitate access to electricity in rural areas. The aim of this paper is to analyze the design elements and functioning of the SASHS auction in Peru in order to derive lessons for the effective and efficient design of those auctions. Based on an analytical framework developed elsewhere, this article draws on official documents and data, secondary material and interviews with stakeholders. Our results show that some design elements are particularly suitable in this regard. In contrast to renewable electricity auctions in general, for which the volume auctioned is usually set as capacity (MW) or generation (MWh), the volume of SASHS auctions should be set in terms of the number of SASHS providing an electricity service.Geographical diversity,with different auctions per region, would ensure the adoption of a minimum amount of SASHS in a given geographical area. Financial solvency, but not technical reputation, should be required. Otherwise, only the incumbents would be able to participate in the auction. The choice of technology-specific, price-only, sealed-bid, single-item auctions brings benefits in terms of economies of scale, lower support or transaction costs and a greater transparency or simplicity. A correction factor on the remuneration which accounts for the quality of the service, as applied in the Peru auction, is suitable for this type of auctions. Finally, provision of technical information, which facilitates the participation in the auction, and the implementation of a non-disclosed ceiling price are deemed appropriate. In contrast, given the lowpresence of local companies in the Peruvian PV market, the adoption of local content requirements would lead to higher support costs without significantly increasing the local development potential.The authors would like to acknowledge Mr. Julio Eisman Valdés forhis guidance and support and Mr. Mats Marquardt (Factor) for editingsupport. Dr. Cabeza would like to thank the Catalan Government forthe quality accreditation given to her research group GREiA (2017 SGR1537). GREiA is certified agent TECNIO in the category of technology de-velopers from the Government of Catalonia. This work is partially sup-ported by ICREA under the ICREA Academia progra

Synthetic Image Detection: Highlights from the IEEE Video and Image Processing Cup 2022 Student Competition

The Video and Image Processing (VIP) Cup is a student competition that takes place each year at the IEEE International Conference on Image Processing. The 2022 IEEE VIP Cup asked undergraduate students to develop a system capable of distinguishing pristine images from generated ones. The interest in this topic stems from the incredible advances in the AI-based generation of visual data, with tools that allows the synthesis of highly realistic images and videos. While this opens up a large number of new opportunities, it also undermines the trustworthiness of media content and fosters the spread of disinformation on the internet. Recently there was strong concern about the generation of extremely realistic images by means of editing software that includes the recent technology on diffusion models. In this context, there is a need to develop robust and automatic tools for synthetic image detection

An iterative multi-fidelity approach for model order reduction of multi-dimensional input parametric PDE systems

We propose a parametric sampling strategy for the reduction of large-scale PDE systems with multidimensional input parametric spaces by leveraging models of different fidelity. The design of this methodology allows a user to adaptively sample points ad hoc from a discrete training set with no prior requirement of error estimators. It is achieved by exploiting low-fidelity models throughout the parametric space to sample points using an efficient sampling strategy, and at the sampled parametric points, high-fidelity models are evaluated to recover the reduced basis functions. The low-fidelity models are then adapted with the reduced order models ( ROMs) built by projection onto the subspace spanned by the recovered basis functions. The process continues until the low-fidelity model can represent the high-fidelity model adequately for all the parameters in the parametric space. Since the proposed methodology leverages the use of low-fidelity models to assimilate the solution database, it significantly reduces the computational cost in the offline stage. The highlight of this article is to present the construction of the initial low-fidelity model, and a sampling strategy based on the discrete empirical interpolation method (DEIM). We test this approach on a 2D steady-state heat conduction problem for two different input parameters and make a qualitative comparison with the classical greedy reduced basis method (RBM), and further test on a 9-dimensional parametric non-coercive elliptic problem and analyze the computational performance based on different tuning of greedy selection of points

Inclusión laboral en población LGBTI en Bogotá

Curso de Especial Interés: Psicología y SexualidadEl presente trabajo pretende dar a conocer el estado actual de competitividad, equidad, calidad y oportunidad en inclusión laboral de población LGBTI, lesbianas, gay, bisexuales, transgeneristas e intersexuales en Bogotá. Nuestro interés es promover y fomentar la toma de conciencia sobre la responsabilidad social y empresarial de inclusión laboral en población LGBTI como personas con derechos que generan un impacto interno y externo en las organizaciones y el Distrito Capital a partir de una capacitación dirigida a líderes de las organizaciones. Los resultados de la muestra representativa arrojaron que a pesar de que la población aplicada se encuentra dentro de una etapa adulto joven el desinterés y apatía por la temática es de gran impacto para esta comunidad y el objetivo de este proyecto.87 p.1. Resumen 2. Introducción 3. Fundamentación teórica 4. Marco ético 5. Metodología 6. Estudio de mercadeoPregradoPsicólog