1,139 research outputs found
Acquisition of loss of the wild-type NRAS locus with aggressive disease progression in a patient with juvenile myelomonocytic leukemia and a heterozygous NRAS mutation
ArticleHAEMATOLOGICA-THE HEMATOLOGY JOURNAL. 92(1-11): 1576-1578 (2007)journal articl
Arthroscopic management of temporomandibular closed lock
The document attached has been archived with permission from the Australian Dental Association. An external link to the publisher’s copy is included
Strict Limit on CPT Violation from Polarization of Gamma-Ray Bursts
We report the strictest observational verification of CPT invariance in the
photon sector, as a result of gamma-ray polarization measurement of distant
gamma-ray bursts (GRBs), which are brightest stellar-size explosions in the
universe. We detected the gamma-ray polarization of three GRBs with high
significance, and the source distances may be constrained by a well-known
luminosity indicator for GRBs. For the Lorentz- and CPT-violating dispersion
relation E_{\pm}^2=p^2 \pm 2\xi p^3/M_{Pl}, where \pm denotes different
circular polarization states of the photon, the parameter \xi is constrained as
|\xi|<O(10^{-15}). Barring precise cancellation between quantum gravity effects
and dark energy effects, the stringent limit on the CPT-violating effect leads
to the expectation that quantum gravity presumably respects the CPT invariance.Comment: 4 pages; accepted for publication in Physical Review Letters;
redshift estimates of GRBs changed (i.e z=0.382 was wrong for GRB 110721A)
and calculations of \xi limit improved from the previous versio
Serum levels of free light chain before and after chemotherapy in primary systemic AL amyloidosis
This is an electronic version of an article published in AMYLOID-JOURNAL OF PROTEIN FOLDING DISORDERS. 13: 71(2006) [AMYLOID-JOURNAL OF PROTEIN FOLDING DISORDERS] is available online at: http://www.informaworld.com/openurl?genre=article&issn=1350-6129&volume=13&issue=3&spage=71ArticleAmyloid-Journal of Protein Folding Disorders. 13(Suppl. 1): 45-45 (2006)journal articl
Design and performance of the muon monitor for the T2K neutrino oscillation experiment
This article describes the design and performance of the muon monitor for the
T2K (Tokaito-Kamioka) long baseline neutrino oscillation experiment. The muon
monitor consists of two types of detector arrays: ionization chambers and
silicon PIN photodiodes. It measures the intensity and profile of muons
produced, along with neutrinos, in the decay of pions. The measurement is
sensitive to the intensity and direction of the neutrino beam. The linearity
and stability of the detectors were measured in beam tests to be within 2.4%
and 1.5%, respectively. Based on the test results, the precision of the beam
direction measured by the muon monitor is expected to be 0.25 mrad.Comment: 22 page
Development and operational experience of magnetic horn system for T2K experiment
A magnetic horn system to be operated at a pulsed current of 320 kA and to
survive high-power proton beam operation at 750 kW was developed for the T2K
experiment. The first set of T2K magnetic horns was operated for over 12
million pulses during the four years of operation from 2010 to 2013, under a
maximum beam power of 230 kW, and protons were exposed to
the production target. No significant damage was observed throughout this
period. This successful operation of the T2K magnetic horns led to the
discovery of the oscillation phenomenon in 2013 by
the T2K experiment. In this paper, details of the design, construction, and
operation experience of the T2K magnetic horns are described.Comment: 22 pages, 40 figures, also submitted to Nuclear Instrument and
Methods in Physics Research,
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