326,505 research outputs found

    Teatro Ojo: Teatralidades desplazadas y otros escenarios para escuchar

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    Interview conducted by Gabriela Ponce to the members of Teatro Ojo. This group was formed in Mexico in 2002. Their work generates displacements of conventional theatrical forms and opens new ways to conceive the scene. In this interview, they analyze their work and talk about the concerns that surround their projects.Entrevista realizada por Gabriela Ponce a los integrantes de Teatro Ojo. Este grupo se forma en México en el 2002. Su trabajo genera desplazamientos de las formas teatrales y abre nuevas formas para concebir la escena. En esta entrevista, analizan su trabajo y hablan de las preocupaciones que rondan sus proyectos.  &nbsp

    Central banks and different policies implemented in response to the recent Financial Crisis

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    Rescue cases involving guarantees (contrasted with restructuring cases) during the recent Financial Crisis, have illustrated the prominent position which the goal of promoting financial stability has assumed over that of the prevention or limitation of possible distortions of competition which may arise when granting State aid. The recent Financial Crisis has also illustrated how the traditional role of central banks has been extended to incorporate more innovative roles. The reduction of interest rates by central banks to all time lows – along with other unprecedented actions which have been undertaken by central banks, as evidenced by the recent Financial Crisis, have been regarded as „extensions of traditional methods of operation which have resulted in a new territory in which tools have been implemented in very new ways.“ As well as providing an analysis of how the traditional role of central banks has evolved through the duration of the Financial Crisis, this paper attempts to highlight how far central banks and governments should intervene and how far distortions of competition should be permitted during periods of financial crises.competition; central banks; recapitalisation; stability; regulation; financial crises; fundamentally sound financial institutions; macro prudential; Basel III; systemic risk; supervision; liquidity; state aid; monetary policy

    An Examination of Income Generation Potential of Aquaculture Farms in Alleviating Household Poverty: Estimation and Policy Implications from Nigeria

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    This study examines income generation potential and resource-use efficiency of 120 aquaculture farms in Oyo state Nigeria. The data collected were analyzed using gross margin and stochastic frontier production (SFP) model. Result of gross margin (GM) shows that the farms were quite profitable with an average GM of N207, 000 per annum. The SFP model reveals that, elasticities of all considered inputs were positive and significantly different from zero. Returns to scale of 1.16 computed as sum of the inputs elasticities suggests that, an average farm from the study exhibits increasing returns to scale. Further analyses reveal that, an average technical efficiency estimate of about 81% was obtained from SFP model. This suggests that, about 19% potential yield are forgone due to inefficiency from the study. The result of sources of technical efficiency differential shows that extension; education, stocking density, and credit significantly influenced technical efficiency of the farms. Also, result of simulated marginal effects of these variables on technical efficiency shows that extension has the highest marginal effects on the efficiency estimates followed by credit, education, and stocking density. The study, therefore, suggests that, significant level of profit obtained from the study is synonymous to improve efficiency environment observed among the farms as promotion of aquaculture development has the potential in alleviating household income poverty in the country

    Sindrome de ojo rojo

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    El ojo rojo es una queja de presentación común en la práctica ambulatoria, la conjuntivitis (alérgica o viral) es probablemente la causa más común de ojos rojos en el entorno comunitario. El historial del paciente, la medición de la agudeza visual y los hallazgos en el examen con linterna son características importantes para determinar la causa y el tratamiento del ojo rojo

    Network Performance Evaluation of a LoRa-based IoT System for Crop Protection against Ungulates

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    Internet of Things (IoT) applications are deeply revolutionizing our lives, due to the continuous, outstanding development of innovative platforms including, for instance, accurate sensors, cloud solutions, and involving relevant advancements in standards and protocols. One of the recent trends of IoT applications is smart agriculture, which is evolving to solve several relevant problems from producers. In this paper, we present an IoT solution for precision agriculture aimed at repelling ungulates and preventing damages to crop fields. Moreover, this paper provides an in-depth technical description of a complete architecture we designed and deployed for this application, that consists of the low-power wide-area network (LPWAN) and the backend system. The deployment also explores the performance of LoRa network in terms of its reliability in a rural area under different scenarios, i.e., in an open, dense and very dense vegetation environments. Experimental results show that vegetations have high impact on LoRa performance. Finally, this paper discusses how the proposed technology is the right one for smart agriculture in relation to crop protection

    Experimental evaluation of a Lora wildlife monitoring network in a forest vegetation area

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    Smart agriculture and wildlife monitoring are one of the recent trends of Internet of Things (IoT) applications, which are evolving in providing sustainable solutions from producers. This article details the design, development and assessment of a wildlife monitoring application for IoT animal repelling devices that is able to cover large areas, thanks to the low power wide area networks (LPWAN), which bridge the gap between cellular technologies and short range wireless technologies. LoRa, the global de-facto LPWAN, continues to attract attention given its open specification and ready availability of off-the-shelf hardware, with claims of several kilometers of range in harsh challenging environments. At first, this article presents a survey of the LPWAN for smart agriculture applications. We proceed to evaluate the performance of LoRa transmission technology operating in the 433 MHz and 868 MHz bands, aimed at wildlife monitoring in a forest vegetation area. To characterize the communication link, we mainly use the signal-to-noise ratio (SNR), received signal strength indicator (RSSI) and packet delivery ratio (PDR). Findings from this study show that achievable performance can greatly vary between the 433 MHz and 868 MHz bands, and prompt caution is required when taking numbers at face value, as this can have implications for IoT applications. In addition, our results show that the link reaches up to 860 m in the highly dense forest vegetation environment, while in the not so dense forest vegetation environment, it reaches up to 2050 m

    Design, Development and Evaluation of an Intelligent Animal Repelling System for Crop Protection Based on Embedded Edge-AI

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    In recent years, edge computing has become an essential technology for real-time application development by moving processing and storage capabilities close to end devices, thereby reducing latency, improving response time and ensuring secure data exchange. In this work, we focus on a Smart Agriculture application that aims to protect crops from ungulate attacks, and therefore to significantly reduce production losses, through the creation of virtual fences that take advantage of computer vision and ultrasound emission. Starting with an innovative device capable of generating ultrasound to drive away ungulates and thus protect crops from their attack, this work provides a comprehensive description of the design, development and assessment of an intelligent animal repulsion system that allows to detect and recognize the ungulates as well as generate ultrasonic signals tailored to each species of the ungulate. Taking into account the constraints coming from the rural environment in terms of energy supply and network connectivity, the proposed system is based on IoT platforms that provide a satisfactory compromise between performance, cost and energy consumption. More specifically, in this work, we deployed and evaluated various edge computing devices (Raspberry Pi, with or without a neural compute stick, and NVIDIA Jetson Nano) running real-time object detector (YOLO and Tiny-YOLO) with custom-trained models to identify the most suitable animal recognition HW/SW platform to be integrated with the ultrasound generator. Experimental results show the feasibility of the intelligent animal repelling system through the deployment of the animal detectors on power efficient edge computing devices without compromising the mean average precision and also satisfying real-time requirements. In addition, for each HW/SW platform, the experimental study provides a cost/performance analysis, as well as measurements of the average and peak CPU temperature. Best practices are also discussed and lastly, this article discusses how the combined technology used can help farmers and agronomists in their decision making and management process

    Fotografía del ojo

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    En el presente trabajo se describen someramente los principios generales de la fotografía y se describe en profundidad la macro fotografía aplicada a la obtención de imágenes fotográficas de calidad del ojo de los animales domésticos. Se clescriben los equipos, sistemas de iluminación y películas más adecuadas en opinión del autor.In this paper a brief description of the general principles of photography and a detailed report of macrophotography applied to the adquisition of quality photographs of the eye of domestic animals, is made. The apparatus, methods of illumination and films which in the author 's opinion are most adequate, are described

    Ojo de la Cabra Grant

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    Ojo de la Cabra Grant - Marino S. Otero - Case 167 (1896
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