Biological nitrogen removal over nitritation/denitritation using phenol as carbon source

A laboratory scale activated sludge sequencing batch reactor was operated in order to obtain total removal of influent ammonia (200; 300 and 500 mg NH3-N.L-1) with sustained nitrite accumulation at the end of the aerobic stages with phenol (1,000 mg C6H5OH.L-1) as the carbon source for denitrifying microorganisms during the anoxic stages. Ammonia removal above 95% and ratios of (NO2--N / (NO2--N + NO3--N)) ranging from 89 to 99% were obtained by controlling the dissolved oxygen concentration (1.0 mg O2.L-1) and the pH value of 8.3 during the aerobic stages. Phenol proved to be an adequate source of carbon for nitrogen removal via nitrite with continuous feeding throughout part of the anoxic stage. Nitrite concentrations greater than 70.0 mg NO2--N.L-1 inhibited the biological denitritation process.FAPESP (The State of São Paulo Research Foundation

Recent development on the realization of a 1-inch VSiPMT prototype

The VSiPMT (Vacuum Silicon PhotoMultiplier Tube) is an innovative design for a revolutionary hybrid photodetector. The idea, born with the purpose to use a SiPM for large detection volumes, consists in replacing the classical dynode chain with a SiPM. In this configuration, we match the large sensitive area of a photocathode with the performances of the SiPM technology, which therefore acts like an electron detector and so like a current amplifier. The excellent photon counting capability, fast response, low power consumption and great stability are among the most attractive features of the VSiPMT. In order to realize such a device we first studied the feasibility of this detector both from theoretical and experimental point of view, by implementing a Geant4-based simulation and studying the response of a special non-windowed MPPC by Hamamatsu with an electron beam. Thanks to this result Hamamatsu realized two VSiPMT industrial prototypes with a photocathode of 3mm diameter. We present the progress on the realization of a 1-inch prototype and the preliminary tests we are performing on it

The VSiPMT project

Photon detection is a key factor to study many physical processes in several areas of fundamental physics research. Focusing the attention on photodetectors for particle astrophysics, the future experiments aimed at the study of very high-energy or extremely rare phenomena (e.g. dark matter, proton decay, neutrinos from astrophysical sources) will require additional improvements in linearity, gain, quantum efficiency and single photon counting capability. To meet the requirements of this class of experiments, we propose a new design for a modern hybrid photodetector: the VSiPMT (Vacuum Silicon PhotoMultiplier Tube). The idea is to replace the classical dynode chain of a PMT with a SiPM, which therefore acts as an electron detector and amplifier. The aim is to match the large sensitive area of a photocathode with the performances of the SiPM technology. We now present the preliminary study we are performing to realize a 3-inches VSiPMT prototype

Desenvolvimento e implementação de um modelo de gestão do risco num processo de ensino-aprendizagem no pré escolar–Estudo de Caso

A tomada de consciência para a inevitabilidade do risco tem de estar sempre presente quando se realiza qualquer projeto. Realizando uma abordagem processual à gestão de projeto, deverá sempre integrar-se nas várias fases desse processo, a gestão do risco. Assim, a gestão do risco constitui um processo próprio em que, entre outras etapas, uma avaliação precisa do risco se mostra muito importante para uma gestão eficaz. A gestão escolar é influenciada por diversos fatores constituídos no decorrer das relações estabelecidas, tornando-se um desafio aos gestores e também aos educadores. Desta forma, é possível entender os aspetos da formação plena e integrativa, nos ambientes escolares. O processo de gestão deve ser analisado desde a sua conceção, implementação do mesmo na escola até à sua repercussão no processo de ensino-aprendizagem (avaliação dos outputs/outcomes). Este trabalho teve como objetivo a integração da gestão do risco num projeto escolar de terapia da fala, no sentido de melhor apoiar a tomada de decisão, contribuindo para a identificação e levantamento de ações preventivas necessárias a implementar, no sentido de garantir o sucesso da aplicação do referido projeto escolar de terapia da fala.The awareness for the inevitability of the risk must always be present when carry out any project. When conducting a procedural approach to the project management, the risk management must always be integrated in the different stages of the process. Therefore, the risk management represents a unique process that, among other stages, an accurate evaluation of the risk is the key to an effective management. The educational management is influenced by various factors incorporated in the course of the established relationships, becoming a challenge to the managers and also to the educators. In this way, it is possible to understand the aspects of training full and integrated in school environment. The management process must be analyzed since its conception, its complementation in school until its impact in the teaching – learning process (evaluation of outputs/outcomes). The aim of this project was the inclusion of the risk management in the school project of speech therapy, with the purpose to support the awareness, adding to the identification and searching of preventing actions needed to assure the success of the mentioned school project of speech therapy.La conciencia de la inevitabilidad del riesgo siempre debe estar presente al llevar a cabo cualquier proyecto. Tomando un enfoque de procedimiento para la gestión de proyectos, la gestión de riesgos siempre debe integrarse en las diversas etapas de este proceso. Por lo tanto, la gestión de riesgos es un proceso propio en el que, entre otros pasos, la evaluación precisa de riesgos es muy importante para una gestión eficaz. La gestión escolar está influenciada por varios factores constituidos durante las relaciones establecidas, lo que lo convierte en un desafío para los gerentes y también para los educadores. De esta manera, es posible comprender los aspectos de la formación completa e integradora en los entornos escolares. El proceso de gestión debe analizarse desde su concepción, su implementformación en la escuela hasta su repercusión en el proceso de enseñanza-aprendizaje (evaluación de productos / resultados). Este trabajo tuvo como objetivo integrar la gestión de riesgos en un proyecto escolar de terapia del habla, con el fin de apoyar mejor la toma de decisiones, contribuyendo a la identificación y encuesta de acciones preventivas necesarias para implementar, con el fin de garantizar el éxito de la aplicación. del proyecto escolar de logopedia

All-sky Search for High-Energy Neutrinos from Gravitational Wave Event GW170104 with the ANTARES Neutrino Telescope

Advanced LIGO detected a significant gravitational wave signal (GW170104) originating from the coalescence of two black holes during the second observation run on January 4$^{\textrm{th}}$, 2017. An all-sky high-energy neutrino follow-up search has been made using data from the ANTARES neutrino telescope, including both upgoing and downgoing events in two separate analyses. No neutrino candidates were found within $\pm500$ s around the GW event time nor any time clustering of events over an extended time window of $\pm3$ months. The non-detection is used to constrain isotropic-equivalent high-energy neutrino emission from GW170104 to less than $\sim4\times 10^{54}$ erg for a $E^{-2}$ spectrum

The ANTARES Collaboration: Contributions to ICRC 2017 Part I: Neutrino astronomy (diffuse fluxes and point sources)

Papers on neutrino astronomy (diffuse fluxes and point sources, prepared for the 35th International Cosmic Ray Conference (ICRC 2017, Busan, South Korea) by the ANTARES Collaboratio

The Antares Collaboration : Contributions to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague)

The ANTARES detector, completed in 2008, is the largest neutrino telescope in the Northern hemisphere. Located at a depth of 2.5 km in the Mediterranean Sea, 40 km off the Toulon shore, its main goal is the search for astrophysical high energy neutrinos. In this paper we collect the 21 contributions of the ANTARES collaboration to the 34th International Cosmic Ray Conference (ICRC 2015). The scientific output is very rich and the contributions included in these proceedings cover the main physics results, ranging from steady point sources, diffuse searches, multi-messenger analyses to exotic physics