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Laureano S. Frizzo,María V. Zbrun,Lorena P. Soto,Ezequiel Bertozzi,Gabriel J. Sequeira,Luis E. Marti,Marcelo L. Signorini,Roberto Rodríguez Armesto,Marcelo R. Rosmini 대한수의학회 2012 JOURNAL OF VETERINARY SCIENCE Vol.13 No.3
The purpose of this study was to evaluate the capacity of a lactic acid bacteria (LAB) inoculum to protect calves with or without lactose supplements against Salmonella Dublin infection by evaluating histopathological lesions and pathogen translocation. Fifteen calves were divided into three groups [control group (C-G), a group inoculated with LAB (LAB-G), and a group inoculated with LAB and given lactose supplements (L-LAB-G)] with five, six, and four animals, respectively. The inoculum, composed of Lactobacillus (L.) casei DSPV 318T, L. salivarius DSPV 315T, and Pediococcus acidilactici DSPV 006T, was administered with milk replacer. The LAB-G and L-LAB-G received a daily dose of 109 CFU/kg body weight of each strain throughout the experiment. Lactose was provided to the L-LAB-G in doses of 100 g/day. Salmonella Dublin (2 × 1010 CFU) was orally administered to all animals on day 11 of the experiment. The microscopic lesion index values in target organs were 83%, 70%, and 64.3% (p < 0.05) for the C-G, LAB-G, and L-LAB-G, respectively. Administration of the probiotic inoculum was not fully effective against infection caused by Salmonella. Although probiotic treatment was unable to delay the arrival of pathogen to target organs, it was evident that the inoculum altered the response of animals against pathogen infection.
Applications of Photonuclear Physics for International Safeguards and Security
M. S. Johnson,J. M. Hall,D. P. McNabb,J. L. McFarland,E. B. Norman,W. Bertozzi,S. E. Korbly,R. J. Ledoux,W. H. Park 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
Studies of nuclear resonance fluorescence based applications are presented. Important for these applications are data for isotopes such as ^(239)Pu. Nuclear resonance fluorescence measurements of ^(239)Pu were performed at the free electron laser facility at UC Santa Barbara using photons from a bremsstrahlung beam with an endpoint energies between 4.0 MeV and 5.5 MeV. Though no discrete states with significant confidence level were measured, we have excluded the region above 27(3) eV-barns, or 4-sigma, where we would expect only a small chance of false positives. Details of the measurements and the results are presented here.
Katich, J.,Qian, X.,Zhao, Y. X.,Allada, K.,Aniol, K.,Annand, J. R. M.,Averett, T.,Benmokhtar, F.,Bertozzi, W.,Bradshaw, P. C.,Bosted, P.,Camsonne, A.,Canan, M.,Cates, G. D.,Chen, C.,Chen, J.-P.,Chen, American Physical Society 2014 Physical Review Letters Vol.113 No.2
<P>We report the first measurement of the target-normal single-spin asymmetry in deep-inelastic scattering from the inclusive reaction 3)He()(e,e')X on a polarized (3)He gas target. Assuming time-reversal invariance, this asymmetry is strictly zero in the Born approximation but can be nonzero if two-photon-exchange contributions are included. The experiment, conducted at Jefferson Lab using a 5.89 GeV electron beam, covers a range of 1.7<W<2.9??GeV, 1.0<Q(2)<4.0??GeV(2) and 0.16<x<0.65. Neutron asymmetries were extracted using the effective nucleon polarization and measured proton-to-(3)He cross-section ratios. The measured neutron asymmetries are negative with an average value of (-1.090.38)10(-2) for invariant mass W>2??GeV, which is nonzero at the 2.89σ level. Our measured asymmetry agrees both in sign and magnitude with a two-photon-exchange model prediction that uses input from the Sivers transverse momentum distribution obtained from semi-inclusive deep-inelastic scattering.</P>