SN1987A and the Status of Oscillation Solutions to the Solar Neutrino Problem (including an appendix discussing the NC and day/night data from SNO)

We study neutrino oscillations and the level-crossing probability PLZ in power-law potential profiles A(r)\propto r^n. We give local and global adiabaticity conditions valid for all mixing angles theta and discuss different representations for PLZ. For the 1/r^3 profile typical of supernova envelopes we compare our analytical to numerical results and to earlier approximations used in the literature. We then perform a combined likelihood analysis of the observed SN1987A neutrino signal and of the latest solar neutrino data, including the recent SNO CC measurement. We find that, unless all relevant supernova parameters (released binding energy, \bar\nu_e and \bar\nu_{\mu,\tau} temperatures) are near their lowest values found in simulations, the status of large mixing type solutions deteriorates considerably compared to fits using only solar data. This is sufficient to rule out the vacuum-type solutions for most reasonable choices of astrophysics parameters. The LOW solution may still be acceptable, but becomes worse than the SMA-MSW solution which may, in some cases, be the best combined solution. On the other hand the LMA-MSW solution can easily survive as the best overall solution, although its size is generally reduced when compared to fits to the solar data only.Comment: 31 pages, 32 eps figures; 5 pages, 5 eps figures addendum in v2, discussing the recent SNO NC data and changes in SN paramete

Collider aspects of flavour physics at high Q

This review presents flavour related issues in the production and decays of heavy states at LHC, both from the experimental side and from the theoretical side. We review top quark physics and discuss flavour aspects of several extensions of the Standard Model, such as supersymmetry, little Higgs model or models with extra dimensions. This includes discovery aspects as well as measurement of several properties of these heavy states. We also present public available computational tools related to this topic.Comment: Report of Working Group 1 of the CERN Workshop ``Flavour in the era of the LHC'', Geneva, Switzerland, November 2005 -- March 200

Highly-parallelized simulation of a pixelated LArTPC on a GPU

The rapid development of general-purpose computing on graphics processing units (GPGPU) is allowing the implementation of highly-parallelized Monte Carlo simulation chains for particle physics experiments. This technique is particularly suitable for the simulation of a pixelated charge readout for time projection chambers, given the large number of channels that this technology employs. Here we present the first implementation of a full microphysical simulator of a liquid argon time projection chamber (LArTPC) equipped with light readout and pixelated charge readout, developed for the DUNE Near Detector. The software is implemented with an end-to-end set of GPU-optimized algorithms. The algorithms have been written in Python and translated into CUDA kernels using Numba, a just-in-time compiler for a subset of Python and NumPy instructions. The GPU implementation achieves a speed up of four orders of magnitude compared with the equivalent CPU version. The simulation of the current induced on 10^3 pixels takes around 1 ms on the GPU, compared with approximately 10 s on the CPU. The results of the simulation are compared against data from a pixel-readout LArTPC prototype

Corpo estranho traqueal em cão

The occurrence of a tracheal foreign body in a three-month-old male Poodle referred to a Teaching Veterinary Hospital due to acute coughing, gagging and nausea is reported. A bronchoscopy under general anesthesia was performed in order to obtain a diagnose. During the bronchoscopy a foreign body (maize popcorn) was observed in the intrathoracic trachea. The surgeon attempted to remove it by endoscopy, but no success was achieved. Therefore, an open procedure was performed and the foreign body removed. The patient progressed satisfactorily after the thoracotomy

Aglutininas antileptospíricas em búfalos do Vale do Ribeira, Estado de São Paulo Anti-leptospire agglutinins in buffaloes from Vale do Ribeira, São Paulo State, Brazil

Foram estudadas aglutininas antileptospíricas em 403 amostras de soro de búfalos, provenientes de sete Municípios do Vale do Ribeira, Estado de São Paulo, coletadas no período de janeiro de 1992 a junho de 1993. Utilizou-se o teste de soroaglutinação microscópica, considerando-se positivas as amostras cujo título fosse igual ou superior a 100. O maior título encontrado foi 1600 para o sorovar bratislava (1 amostra), seguido de 800 para wolffi (4 amostras). Do total, 152 (37,7%) das amostras foram positivas, sendo que, dentre os sorovares testados, a prevalência em ordem decrescente foi: wolffi (68, 44,8%), icterohaemorrhagiae (51, 33,6%), hardjo (51, 33,6%), castellonis (25, 16,5%), djasiman (12, 7,9%), grippotyphosa (10, 6,6%), pomona (8, 5,2%), bratislava (6, 4,0%), copenhageni (5, 3,3%) e tarassovi (4, 2,7%).<br>A total of 403 buffaloes serum samples from seven counties of Vale do Ribeira, São Paulo State, Brazil, obtained between January 1992 and June 1993, were studied to determine the prevalence of anti-leptospire agglutinins using the microscopic serum agglutination test. A titre of 100 and above was considered positive. The highest titre found was 1600 to the sorovar bratislava (one sample), followed by 800 to wolffi (4 samples). 152 (37.7%) samples from the total were positive to the serovars tested, and their prevalence, in decreasing order, was: wolffi (68, 44.8%), icterohaemorrhagiae (51, 33.6%), hardjo (51, 33.6%), castellonis (25, 16.5%), djasiman (12, 7.9%), grippotyphosa (10, 6.6%), pomona (8, 5.2%), bratislava (6, 4.0%), copenhageni (5, 3.3%) and tarassovi (4, 2.7%)

Synthesis, quality control and dosimetry of the radiopharmaceutical 18F-sodium fluoride produced at the Center for Development of Nuclear Technology - CDTN

18F-Sodium fluoride (Na18F) is a radiopharmaceutical used for diagnosis in nuclear medicine by positron emission tomography (PET) imaging. Bone scintigraphy is normally performed using 99mTc-MDP. However, 18F PET scans promise high quality imaging with increased resolution and improved sensitivity and specificity. In order to make available a tool for more specific studies of tumors and non-oncological diseases of bone tissue, the UPPR/CDTN team undertook the production and quality control of Na18F injectable solution with the physical-chemical, microbiological and biological characteristics recommended in the U.S. Pharmacopeia. Na18F radiochemical purity was 96.7 ± 1.3 %, with Rf= 0.026 ± 0.006. The product presented a pH of 5.3 ± 0.6, half life of 109.0 ± 0.8 minutes, endotoxin limit < 5.0 EU.mL-1 and no microbial contaminants. The biodistribution of Na18F was similar to that described in the literature, with a clearance of 0.19 mL.min-1 and distribution volume of 18.76 mL. The highest bone concentration (5.0 ± 0.5 %ID.g-1) was observed 20 minutes after injection. Na18F produced at the UPPR presented all the quality assurance requirements of the U.S. Pharmacopeia and can be safely used for clinical bone imaging.<br>O Fluoreto de sódio 18F (Na18F) é um radiofármaco empregado para diagnóstico através da Tomografia por Emissão de Pósitrons (PET). Cintilografias ósseas são normalmente obtidas utilizando-se 99mTc-MDP. Entretanto, o interesse pelo Na18F é crescente, principalmente devido à obtanção de imagens de elevada resolução. Com o objetivo de tornar disponível uma ferramenta mais específica para estudos de tumores e doenças não-oncológicas do tecido ósseo, o grupo da UPPR/CDTN implementou a produção e o controle de qualidade da solução injetável de Na18F com as características físico-química, microbiológica e biológica preconizadas pela farmacopéia. Sua pureza radioquímica foi de 96,7 ± 1,3 %, com Rf= 0,026 ± 0,006. O produto apresentou pH igual a 5,3 ± 0,6, tempo de meia-vida de 109,0 ± 0,8 minutos, limite de endotoxinas < 5,0 EU.mL-1 e ausência de microrganismos. O perfil de biodistribuição em camundongos foi semelhante ao disponível na literatura, com depuração igual a 0,19 mL.min-1 e volume de distribuição igual a 18,76 mL. A concentração máxima (5,0 ± 0,5 % DI.g-1) foi observada no osso 20 minutos após a injeção. O Na18F produzido na UPPR do CDTN apresentou os parâmetros de qualidade definidos na farmacopéia americana e pode ser usado com segurança para uso clínico em cintilografia óssea