Encontrados 6 documentos, a visualizar página 1 de 1
Panorama do controle de endoparasitoses em pequenos ruminantes.
VIEIRA, L. da S.; LOBO, R. N. B.; CAVALCANTE, A. C. R.; NAVARRO, A. M. do C.; BENVENUTI, C. L.; NEVES, M. R. M. das; ZAROS, L. G.2010
Muller’s ratchet and the pattern of variation at a neutral locus
Gordo, I.; Navarro, A.; Charlesworth, B.The levels and patterns of variation at a neutral locus are analyzed in a haploid asexual population Undergoing accumulation of deleterious mutations due to Muller's ratchet. We find that the movement Of Muller's ratchet can be associated with a considerable reduction in genetic diversity below classical neutral expectation. The extent to which variability is reduced is a function Of the deleterious initiation ...
Results from a new combined test of an electromagnetic liquid argon calorimeter...
Akhmadaliev, S.; Albiol, F.; Amaral, P.; Ambrosini, G.; Amorim, A.; Anderson, K.; Andrieux, M. L.; Aubert, B.; Augé, E.; Badaud, F.; Baisin, L.A new combined test of an electromagnetic liquid argon accordion calorimeter and a hadronic scintillating-tile calorimeter was carried out at the CERN SPS. These devices are prototypes of the barrel calorimeter of the future ATLAS experiment at the LHC. The energy resolution of pions in the energy range from 10 to 300 GeV at an incident angle [theta] of about 12° is well described by the expression , where E is...
Evaluation of Fermi read-out of the Atlas Tilecal prototype
Ajaltouni, Z.; Albiol, F.; Alifanov, A.; Amaral, P.; Amelin, D.; Amorim, A.; Anderson, K.; Angelini, C.; Agnvall, S.; Antola, A.; Astesan, F.Prototypes of the FERMI system have been used to read out a prototype of the ATLAS hadron calorimeter in a beam test at the CERN SPS. The FERMI read-out system, using a compressor and a sampling ADC, is compared to a standard charge integrating read-out by measuring the energy resolution of the calorimeter separately with the two systems on the same events. ; http://www.sciencedirect.com/science/article/B6TJ...
Base station transceiver design in a digital wireless local loop system
Navarro, A.; Silva, P.; Ribau, P.; Silva, R.; Figueiredo, J.; Matos, J.; Gameiro, A.During the past ten years the mobile radio communications industry has significantly grown. The miniaturization technologies have allowed smaller and smaller portable terminal radio equipment. People throughout the world have been adhering to the wireless communications methods and services mainly of the public cellular mobile network. The digital cellular mobile networks already implemented all over the world ...
Heart rate changes during the Valsalva maneuver in patients with isolated aorti...
Navarro,A.E.; Dávila,D.F.; Torres,A.; Bellabarba,G.; Donis,J.H.; Casado,J.To determine the possible relationship between left ventricular dilatation and heart rate changes provoked by the Valsalva maneuver (Valsalva ratio), we studied 9 patients with isolated chronic aortic insufficiency. Left ventricular systolic function was assessed by two-dimensional echocardiography and cardiac catheterization. All patients were asymptomatic (functional class I of the New York Heart Association)...
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