First results of the SDHCAL technological prototype

The CALICE Semi-digital hadronic calorimeter built in 2011, was installed and tested during two periods of two weeks each in 2012 at CERN SPS facilities. The detector has more than 450000 channels with a semi-digital readout distributed on 48 layers with efficiency exceeding 95%. It has been run using the trigger-less and power pulsing modes. Data have been collected with muon, electron and hadron beams in the energy range between 5 and 80 GeV. This contribution focuses on the performances, the shower selection methods and on the first results on the calibration using pions.Comment: Proceeding of the CHEF 2013 (Calorimetry for the High Energy Frontier) International conference, Eds J,-C Brient, R. Salerno, and Y. Sirois, ISBN number 978-2-7302-1624-1. year 2013, 1-488 page

Software digitizer for high granular gaseous detector

A sampling calorimeter equipped with gaseous sensor layers with digital readout is near perfect for "Particle Flow Algorithm" approach, since it is homogeneous over large surfaces, robust, cost efficient, easily segmentable to any readout pad dimension and size and almost insensitive to neutrons. The response of a finely segmented digital calorimeter is characterized by track efficiency and multiplicity. Monte Carlo (MC) programs such as GEANT4 simulate with high precision the energy deposited by particles. The sensor and electronic response associated to a pad are calculated in a separate "digitization" process. We developed a general method for simulating the pad response, a digitization, reproducing efficiency and multiplicity, using the spatial information from a simulation done at higher granularity. The digitization method proposed here has been applied to gaseous detectors including Glass Resistive Plate Chambers (GRPC) and MicroMegas. Validating the method on test beam data, experimental observables such as efficiency, multiplicity and mean number of hits at different thresholds have been reproduced with high precision.Comment: Proceeding for MPGD 201

Cyanobacterial mats: Microanalysis of community metabolism

The microbial communities in two sites were studied using several approaches: (1) light microscopy; (2) the measurement of microprofiles of oxygen and sulfide at the surface of the microbial mat; (3) the study of diurnal variation of oxygen and sulfides; (4) in situ measurement of photosynthesis and sulfate reduction and study of the coupling of these two processes; (5) measurement of glutathione in the upper layers of the microbial mat as a possible oxygen quencher; (6) measurement of reduced iron as a possible intermediate electron donor along the established redoxcline in the mats; (7) measurement of dissolved phosphate as an indicator of processes of break down of organic matter in these systems; and (8) measurement of carbon dioxide in the interstitial water and its delta C-13 in an attempt to understand the flow of CO2 through the systems. Microbial processes of primary production and initial degradation at the most active zone of the microbial mat were analyzed

CAUSTIQUES EN CHAMP PROCHE GENEREES PAR DES PARTICULES TRANSPARENTES RECONSTRUCTION PAR HOLOGRAPHIE NUMERIQUE EN LIGNE

International audienceL'holographie numerique en ligne est une technique d'imagerie volumetrique particulierement adaptee a la caracterisation spatiale (position, vitesse et tailles/morphologies) des ecoulements particulaires dilues. Dans de nombreux domaines la connaissance de la composition des particules est aussi d'un grand interet. Nous realisons cette mesure avec l'holographie numerique en ligne par l'analyse du champ proche des particules. Dans cette region les contributions des differents processus de diffusion de la lumiere peuvent etre plus facilement distinguees et notamment les caracteristiques du jet photonique (caustique vers l'avant generee par les rayons simplement refractes). La localisation dans l'espace du maximum d'intensite de cette caustique permet d'estimer l'indice de refraction relatif des particules. Dans cette communication, nous montrons que, dans le cadre de l'approximation de Fresnel de la diffraction scalaire, le jet photonique reconstruit par holographie numerique correspond a la tache d'Airy d'une lentille spherique. Par analogie avec les notions d'images virtuelles et reelles employees en optique pour les lentilles convergentes et divergentes, cette tache est restituee de facon reelle pour les particules ayant un indice relatif superieur a un et de facon virtuelle pour les particules dont l'indice relatif est plus petit que l'unite. Ceci fournit une solution simple et numeriquement tres efficace pour differencier ou caracteriser la composition des particules solides, liquides ou gazeuses. Une validation experimentale en laboratoire sur un ecoulement triphasique montre qu'il est desormais possible d'obtenir simultanement la position dans l'espace, la vitesse, la trajectoire, la taille et la composition de particules en ecoulement

Regenerative endodontic treatment in mature teeth: a systematic review and meta-analysis

Regenerative endodontic treatment (RET) is an alternative treatment for immature teeth, however, its efficacy on mature teeth is still controversial. This review was aimed to assess the level of evidence of clinical and radiographical outcomes of RET in mature teeth and run a meta-analysis to compare its success rate to conventional root canal treatment (CRCT). The electronic databases PubMed, Science Direct and Web of Science were used to search based on inclusion and exclusion criteria. The Randomized controlled clinical trials (RCTs), case series, and case reports studies of the RET in mature teeth published in the English language from January 2010 till December 2021 were selected. A meta-analysis was performed using the random-effects model on the randomized clinical trials that compare the success rate based on clinical and radiographic outcomes of RET and CRCT. From sixteen articles included in the narrative analysis, two studies were subjected to meta-analysis. Different protocol aspects of RET including disinfection, size of apical preparation, intracanal medications, types of scaffolds, barriers and follow-up periods were described. The meta5analysis showed no significant differences in success rate between CRCT (89.47%) and RET (95.45%) at 12 months (P> 0.05), while it showed a significant increase in a positive response to the electrical pulp test of RET (P= 0.010). With the limitations, the adopted protocols of RET are comparable to CRCT and could be a potential approach to treat mature teeth with pulp necrosis and/or apical periodontitis. However, providing more evidence is essential to ascertain these findings

Attitudes toward depression among Japanese non-psychiatric medical doctors: A cross-sectional study

Abstract Background: Under-recognition of depression is common in many countries. Education of medical staff, focusing on their attitudes towards depression, may be necessary to change their behavior and enhance recognition of depression. Several studies have previously reported on attitudes toward depression among general physicians. However, little is known about attitudes of non-psychiatric doctors in Japan. In the present study, we surveyed nonpsychiatric doctors’ attitude toward depression. Methods: The inclusion criteria of participants in the present study were as follows: 1) Japanese non-psychiatric doctors and 2) attendees in educational opportunities regarding depression care. We conveniently approached two populations: 1) a workshop to depression care for non-psychiatric doctors and 2) a general physician-psychiatrist (GP)network group. We contacted 367 subjects. Attitudes toward depression were measured using the Depression Attitude Questionnaire (DAQ), a 20-item self-report questionnaire developed for general physicians. We report scores of each DAQ item and factors derived from exploratory factor analysis. Results: We received responses from 230 subjects, and we used DAQ data from 187 non-psychiatric doctors who met the inclusion criteria. All non-psychiatric doctors (n = 187) disagreed with "I feel comfortable in dealing with depressed patients' needs," while 60 % (n = 112) agreed with "Working with depressed patients is heavy going." Factor analysis indicated these items comprised a factor termed "Depression should be treated by psychiatrists" - to which 54 % of doctors (n = 101) agreed. Meanwhile, 67 % of doctors (n = 126) thought that nurses could be useful in depressed patient support. The three factors derived from the Japanese DAQ differed from models previously derived from British GP samples. The attitude of Japanese non-psychiatric doctors concerning whether depression should be treated by psychiatrists was markedly different to that of British GPs. Conclusions: Japanese non-psychiatric doctors believe that depression care is beyond the scope of their duties. It is suggested that educational programs or guidelines for depression care developed in other countries such as the UK are not directly adaptable for Japanese non-psychiatric doctors. Developing a focused educational program that motivates non-psychiatric doctors to play a role in depression care is necessary to enhance recognition and treatment of depression in Japan

Robust Strong Stabilization via Modified Popov Controller Synthesis

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/57860/1/StrongStabPopovTAC1994.pd