Learning Visual Context by Comparison

Finding diseases from an X-ray image is an important yet highly challenging task. Current methods for solving this task exploit various characteristics of the chest X-ray image, but one of the most important characteristics is still missing: the necessity of comparison between related regions in an image. In this paper, we present Attend-and-Compare Module (ACM) for capturing the difference between an object of interest and its corresponding context. We show that explicit difference modeling can be very helpful in tasks that require direct comparison between locations from afar. This module can be plugged into existing deep learning models. For evaluation, we apply our module to three chest X-ray recognition tasks and COCO object detection & segmentation tasks and observe consistent improvements across tasks. The code is available at https://github.com/mk-minchul/attend-and-compare.Comment: ECCV 2020 spotlight pape

Características caóticas del funcionamiento de un destilador

En trabajos anteriores se mostró que el funcionamiento de un destilador sometido a calentamiento según el ciclo solar presentaba valores anormalmente altos del coeficiente de transferencia térmica h lo que sugería un funcionamiento de tipo caótico. Esto planteó la necesidad de profundizar el conocimiento de esta característica para optimizar el funcionamiento de dispositivos solares. Con este objetivo se realizaron medidas sobre un destilador en laboratorio con alta frecuencia de muestreo para poner en evidencia, eventualmente, características caóticas. Los resultados permiten identificar frecuencias características en el espectro de Fourier de h y del destilado, analizar la tasa de crecimiento e identificar la presencia de un atractor caótico en el espacio de representación.The operation of a solar still under conditions of solar heating was shown in previous papers. Very high values of the heat transfer coefficient h were obtained suggesting chaotic characteristics. The necesity of a deeper knowledge of this behaviour for optimizing the functioning of solar systems was proposed. With this aim, measurements at high frecuency on a laboratory still were performed to eventually make evident the chaotic characteristics. The results obteined allow to identify characteristics frecuencies in the Fourier spectrum of h and of the distillate, to analyze the growing rate and to identify the presence of a chaotic atractor in the representation space.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Características caóticas del funcionamiento de un destilador

En trabajos anteriores se mostró que el funcionamiento de un destilador sometido a calentamiento según el ciclo solar presentaba valores anormalmente altos del coeficiente de transferencia térmica h lo que sugería un funcionamiento de tipo caótico. Esto planteó la necesidad de profundizar el conocimiento de esta característica para optimizar el funcionamiento de dispositivos solares. Con este objetivo se realizaron medidas sobre un destilador en laboratorio con alta frecuencia de muestreo para poner en evidencia, eventualmente, características caóticas. Los resultados permiten identificar frecuencias características en el espectro de Fourier de h y del destilado, analizar la tasa de crecimiento e identificar la presencia de un atractor caótico en el espacio de representación.The operation of a solar still under conditions of solar heating was shown in previous papers. Very high values of the heat transfer coefficient h were obtained suggesting chaotic characteristics. The necesity of a deeper knowledge of this behaviour for optimizing the functioning of solar systems was proposed. With this aim, measurements at high frecuency on a laboratory still were performed to eventually make evident the chaotic characteristics. The results obteined allow to identify characteristics frecuencies in the Fourier spectrum of h and of the distillate, to analyze the growing rate and to identify the presence of a chaotic atractor in the representation space.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Efectos de histéresis en la producción de un destilador

Con el objetivo de optimizar la producción de destilado se realizaron ensayos con un destilador de laboratorio sometido a calentamiento que reproduce el calentamiento solar de día claro, cuyas cubiertas tienen una pendiente de 20º y se compararon con resultados previos obtenidos con una pendiente de 45º. Se observó que tanto el destilado promedio horario como el destilado total diario eran mayores en el caso de mayor pendiente. Se comprobó que la producción depende de la historia del funcionamiento del destilador, mostrando un efecto de histéresis y se analizó la influencia estacional.With the aim of optimizing the distillate production essays were performed on a laboratory still with 20º inclination of the covers, under conditions similar to clear day solar heating. The results were compared with those obtained previously with a 45º slope in the covers. It was observed that the hourly mean distillate as well as the total daily distillate were higher in the case of higher slope and that the still production depends on the history of the functioning of the still, showing an hysteresis effect. The stational influence was analyzed.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Analysis of benzo[a]pyrene metabolites formed by rat hepatic microsomes using high pressure liquid chromatography: optimization of the method

A simple and sensitive method was developed to separate the carcinogenic polycyclic aromatic hydrocarbon (PAH), benzo[a]pyrene (BaP), and six of its oxidation metabolites generated by rat hepatic microsomes enriched with cytochrome P450 (CYP) 1A1, by high pressure liquid chromatography (HPLC). The HPLC method, using an acetonitrile/water gradient as mobile phase and UV detection, provided appropriate separation and detection of both mono- and di-hydroxylated metabolites of BaP as well as BaP diones formed by rat hepatic microsomes and the parental BaP. In this enzymatic system, 3-hydroxy BaP, 9-hydroxy BaP, BaP-4,5-dihydrodiol, BaP-7,8-dihydrodiol, BaP-9,10-dihydrodiol and BaP-dione were generated. Among them the mono-hydroxylated BaP metabolite, 3-hydroxy BaP followed by di-hydroxylated BaP products, BaP-7,8-dihydrodiol and BaP-9,10-dihydrodiol, predominated, while BaP-dione was a minor metabolite. This HPLC method will be useful for further defining the roles of the CYP1A1 enzyme with both in vitro and in vivo models in understanding its real role in activation and detoxification of BaP

Vinculaciones humanas e institucionales a través del uso de la energía solar: la Comisaría del Menor y las mini cocinas solares

Este trabajo trata acerca de una experiencia de transferencia de tecnología solar, especialmente apropiada para las actuales circunstancias que viven la región y el país. La misma se inició con la Comisaría del Menor, ubicada a cien metros de la Universidad Nacional de Salta (UNSa). Su finalidad es usar mini cocinas solares como alternativa del empleo de leña o gas para la cocción de alimentos y acercar un nivel científico sencillo a adolescentes con problemas socio-económicos para estimular una veta quizás postergada, pero también como vía de vinculación con menores detenidos en la Comisaría. Actualmente, después de casi tres décadas de existencia de la UNSa, vemos que la universidad está rodeada de asentamientos y barrios pobres, así como la mencionada cárcel de menores, pudiendo ejercer su influencia e impacto social, cultural, socioeconómico y académico más allá de la asistencia de los alumnos a sus aulas o el empleo de sus instalaciones deportivas, sino a través de la concurrencia de sus docentes a los lugares donde son necesitados, a fin de acercar propuestas concretas para la solución de problemas. En este trabajo se muestran estas acciones solidarias.This work describes an experience of solar technology transfer, especially appropriate for current circumstances experienced in the region and the country. It began with the Minority Commissary located a hundred meters in front of UNSa. It is aimed at the use of small solar cookers as an alternative to firewood or bottled gas to cook food; to take basic science to adolescents with socio-economical problems to stimulate a - maybe- hidden vein, but also as a training means for detained minors. After almost three decades of existence, UNSa is enclosed of "asentamientos" and poor districts, as well as the above-mentioned Minors jail. Its influence and social impact are felt not only by cultural, socio-economical and academic attendance of the students in their classrooms or the use of their sport installations, but through the concurrence of their teachers and trained personnel to the places where they are needed, in order to evolve concrete proposals for the solution of problems. In this paper, these solidarity actions are illustrated.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Vinculaciones humanas e institucionales a través del uso de la energía solar: la Comisaría del Menor y las mini cocinas solares

Este trabajo trata acerca de una experiencia de transferencia de tecnología solar, especialmente apropiada para las actuales circunstancias que viven la región y el país. La misma se inició con la Comisaría del Menor, ubicada a cien metros de la Universidad Nacional de Salta (UNSa). Su finalidad es usar mini cocinas solares como alternativa del empleo de leña o gas para la cocción de alimentos y acercar un nivel científico sencillo a adolescentes con problemas socio-económicos para estimular una veta quizás postergada, pero también como vía de vinculación con menores detenidos en la Comisaría. Actualmente, después de casi tres décadas de existencia de la UNSa, vemos que la universidad está rodeada de asentamientos y barrios pobres, así como la mencionada cárcel de menores, pudiendo ejercer su influencia e impacto social, cultural, socioeconómico y académico más allá de la asistencia de los alumnos a sus aulas o el empleo de sus instalaciones deportivas, sino a través de la concurrencia de sus docentes a los lugares donde son necesitados, a fin de acercar propuestas concretas para la solución de problemas. En este trabajo se muestran estas acciones solidarias.This work describes an experience of solar technology transfer, especially appropriate for current circumstances experienced in the region and the country. It began with the Minority Commissary located a hundred meters in front of UNSa. It is aimed at the use of small solar cookers as an alternative to firewood or bottled gas to cook food; to take basic science to adolescents with socio-economical problems to stimulate a - maybe- hidden vein, but also as a training means for detained minors. After almost three decades of existence, UNSa is enclosed of "asentamientos" and poor districts, as well as the above-mentioned Minors jail. Its influence and social impact are felt not only by cultural, socio-economical and academic attendance of the students in their classrooms or the use of their sport installations, but through the concurrence of their teachers and trained personnel to the places where they are needed, in order to evolve concrete proposals for the solution of problems. In this paper, these solidarity actions are illustrated.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Vinculaciones humanas e institucionales a través del uso de la energía solar: la Comisaría del Menor y las mini cocinas solares

Este trabajo trata acerca de una experiencia de transferencia de tecnología solar, especialmente apropiada para las actuales circunstancias que viven la región y el país. La misma se inició con la Comisaría del Menor, ubicada a cien metros de la Universidad Nacional de Salta (UNSa). Su finalidad es usar mini cocinas solares como alternativa del empleo de leña o gas para la cocción de alimentos y acercar un nivel científico sencillo a adolescentes con problemas socio-económicos para estimular una veta quizás postergada, pero también como vía de vinculación con menores detenidos en la Comisaría. Actualmente, después de casi tres décadas de existencia de la UNSa, vemos que la universidad está rodeada de asentamientos y barrios pobres, así como la mencionada cárcel de menores, pudiendo ejercer su influencia e impacto social, cultural, socioeconómico y académico más allá de la asistencia de los alumnos a sus aulas o el empleo de sus instalaciones deportivas, sino a través de la concurrencia de sus docentes a los lugares donde son necesitados, a fin de acercar propuestas concretas para la solución de problemas. En este trabajo se muestran estas acciones solidarias.This work describes an experience of solar technology transfer, especially appropriate for current circumstances experienced in the region and the country. It began with the Minority Commissary located a hundred meters in front of UNSa. It is aimed at the use of small solar cookers as an alternative to firewood or bottled gas to cook food; to take basic science to adolescents with socio-economical problems to stimulate a - maybe- hidden vein, but also as a training means for detained minors. After almost three decades of existence, UNSa is enclosed of "asentamientos" and poor districts, as well as the above-mentioned Minors jail. Its influence and social impact are felt not only by cultural, socio-economical and academic attendance of the students in their classrooms or the use of their sport installations, but through the concurrence of their teachers and trained personnel to the places where they are needed, in order to evolve concrete proposals for the solution of problems. In this paper, these solidarity actions are illustrated.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

A European research agenda for somatic symptom disorders, bodily distress disorders, and functional disorders: Results of an estimate-talk-estimate delphi expert study

Background: Somatic Symptom Disorders (SSD), Bodily Distress Disorders (BDD) and functional disorders (FD) are associated with high medical and societal costs and pose a substantial challenge to the population and health policy of Europe. To meet this challenge, a specific research agenda is needed as one of the cornerstones of sustainable mental health research and health policy for SSD, BDD, and FD in Europe. Aim: To identify the main challenges and research priorities concerning SSD, BDD, and FD from a European perspective. Methods: Delphi study conducted from July 2016 until October 2017 in 3 rounds with 3 workshop meetings and 3 online surveys, involving 75 experts and 21 European countries. EURONET-SOMA and the European Association of Psychosomatic Medicine (EAPM) hosted the meetings. Results: Eight research priorities were identified: (1) Assessment of diagnostic profiles relevant to course and treatment outcome. (2) Development and evaluation of new, effective interventions. (3) Validation studies on questionnaires or semi-structured interviews that assess chronic medical conditions in this context. (4) Research into patients preferences for diagnosis and treatment. (5) Development of new methodologic designs to identify and explore mediators and moderators of clinical course and treatment outcomes (6). Translational research exploring how psychological and somatic symptoms develop from somatic conditions and biological and behavioral pathogenic factors. (7) Development of new, effective interventions to personalize treatment. (8) Implementation studies of treatment interventions in different settings, such as primary care, occupational care, general hospital and specialty mental health settings. The general public and policymakers will benefit from the development of new, effective, personalized interventions for SSD, BDD, and FD, that will be enhanced by translational research, as well as from the outcomes of research into patient involvement, GP-patient communication, consultation-liaison models and implementation. Conclusion: Funding for this research agenda, targeting these challenges in coordinated research networks such as EURONET-SOMA and EAPM, and systematically allocating resources by policymakers to this critical area in mental and physical well-being is urgently needed to improve efficacy and impact for diagnosis and treatment of SSD, BDD, and FD across Europe