1,025 research outputs found
The Final Measurement of Epsilon'/Epsilon from KTeV
We present precise measurements of CP and CPT symmetry based on the full
dataset of K to 2pi decays collected by the KTeV experiment at FNAL. We measure
the direct CP violation parameter Re(epsilon'/epsilon) = (19.2 pm 2.1)x10-4. We
also report the KL-KS mass difference, the KS lifetime, the phase of epsilon,
and the phase difference (phi00)-(phi+-). These results are consistent with
other experimental results and with CPT symmetry.Comment: 10 pages, 19 figures. To be published in the proceedings of DPF-2009,
Detroit, MI, July 2009, eConf C09072
Book Review: East Florida, 1783-1785. A Pile of Documents Assembled, and Many of Them Translated
A review of Joseph Byrne Lackey, East Florida, 1783-1785. A Pile of Documents Assembled, and Many of Them Translated. Edited by John Walton Caughey (Berkeley and Lps Angeles, University of California Press, 1949. pp. xxiv, 764. index. $7.50)
Neutrino Oscillation Parameters: Future
The Neutrino Oscillation Workshop (NOW2018) included a session addressing neutrino oscillation parameters in the future. This session included discussion of planned and proposed experiments, detector technologies, and analysis techniques to better measure neutrino oscillation parameters. Constraint of systematic uncertainty in future precision measurements was a topic of particular interest. This proceedings is a brief summary of the presentations in the Oscillation Parameters: Future session; readers are directed to individual contributions to the proceedings for more detailed information
Randall's plaque: Pathogenesis and role in calcium oxalate nephrolithiasis
The purpose of these studies was to test the hypothesis that Randall's plaque develops in unique anatomical sites of the kidney and their formation is conditioned by specific stone-forming pathophysiologies. We performed intraoperative papillary biopsies from kidneys of idiopathic-calcium oxalate (CaOx), intestinal bypass for obesity, brushite (BR) and cystine stone formers (SF) during percutaneous nephrolithotomy. Tissues were examined by infrared analysis and light and electron microscopy. Our analysis revealed a distinct pattern of mineral deposition and papillary pathology for each type of SF. CaOx SF had interstitial apatite crystals beginning at thin loops of Henle. These deposits termed Randall's plaque are thought to serve as sites for stone attachment. No tubular injury was noted. Intestinal bypass patients possessed intraluminal apatite deposits in inner medullary collecting ducts (IMCD) with associated cell injury. BR SF showed the most severe form of cortical and medullary changes with sites of Randall's plaque, and yellowish intraluminal deposits of apatite in IMCD. Cystine SF had plugging of ducts of Bellini with cystine crystals and apatite deposits in IMCD and loops of Henle. Intratubular sites of crystalline deposits were always associated to adjacent regions of interstitial fibrosis. The metabolic, anatomic, and surgical pathologic findings in four distinct groups of SF clearly show that ‘the histology of the renal papilla from a stone former, is particular to the clinical setting’. We believe our approach to studying stone disease will provide insights into the pathogenesis of stone formation for each type of SF that will lead to improved clinical treatment
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