80 research outputs found
Some Properties of a Cell Line and its Clones Established from the Hepatocellular Carcinoma Induced in the Rat by 2-Acetylaminofluorene : Effect of Dexamethasone
Properties of a Newly Established Adult Rat Liver Epithelial Cell Strain and its Application to Transformation Assay to Detect Epigenetic Carcinogens
Use of imaging plates at near saturation for high energy density particles
Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Review of Scientific Instruments, 79(10), 10E910, 2008 and may be found at http://dx.doi.org/10.1063/1.298767
A Case of Hepatocellular Carcinoma Producing Prothrombins Induced by Vitamin K Absence or Antagonist (PIVKA-II) - Immunohistological Detection of PIVKA-II -
Calibration of imaging plate for high energy electron spectrometer
Copyright 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Review of Scientific Instruments, 76(1), 013507_1-013507_5, 2005 and may be found at http://dx.doi.org/10.1063/1.182437
Evaluation of Transcatheter Arterial Chemoembolization for Unresectable Hepatocellular Carcinoma
The long-term results of transcatheter arterial chemoembolization (LP-TAE) for unresectable hepatocellular carcinoma (HCC) were evaluated in comparison with that of transcatheter arterial chemoinfusion (LP-TAI) and systemic chemotherapy. The cumulative survival rate in 29 patients who received LP-TAE at one-year, two-years and three-years were 70.9%, 54.0% and 25.2%, respectively. In contrast, the cumulative survival rate at one-year in patients who received LP-TAI was 20.6% and those who received systemic chemotherapy was 5.6%. The cumulative survival rate for LP-TAE was significantly higher than those for LP-TAI and systemic chemotherapy (p<0.001). The factor that affected the survival rate for LP-TAE was the size of the tumor. Patients with HCC of less than 5cm in diameter lived significantly longer than those with HCC of more than 5cm in diameter (p<0.05)
Hyper Extremely Red Objects in the Subaru Deep Field: Evidence for Primordial Elliptical Galaxies in the Dusty Starburst Phase
We report observational analyses and theoretical interpretations of unusually
red galaxies in the Subaru Deep Field (SDF). A careful analysis of the SDF data
revealed a population with unusually red near-infrared (NIR) colors of J - K >~
3-4, with higher confidence than the previous SDF result. Their surface number
density drastically increases at K >~ 22 and becomes roughly the same with that
of dusty starburst galaxies detected by submillimeter observations in recent
years. These colors are even redder than the known population of the extremely
red objects (EROs), and too red to explain by passively evolving elliptical
galaxies which are the largest population of EROs. Hence these hyper extremely
red objects (HEROs) should be considered as a distinct population from EROs. We
discuss several possible interpretations of these enigmatic objects, and we
show that these red NIR colors, K-band and sub-mm flux, and surface number
density are quantitatively best explained by primordial elliptical galaxies
reddened by dust, still in the starburst phase of their formation at z ~ 3.Comment: Accepted by ApJ Letter
Development of an experimental platform for combinative use of an XFEL and a high-power nanosecond laser
We developed an experimental platform for combinative use of an X-ray free electron laser (XFEL) and a high-power nanosecond laser. The main target of the platform is an investigation of matter under high-pressure states produced by a laser-shock compression. In this paper, we show details of the experimental platform, including XFEL parameters and the focusing optics, the laser irradiation system and X-ray diagnostics. As a demonstration of the high-power laser-pump XFEL-probe experiment, we performed an X-ray diffraction measurement. An in-situ single-shot X-ray diffraction pattern expands to a large angle side, which shows a corundum was compressed by laser irradiation.Inubushi, Y.; Yabuuchi, T.; Togashi, T.; Sueda, K.; Miyanishi, K.; Tange, Y.; Ozaki, N.; Matsuoka, T.; Kodama, R.; Osaka, T.; Matsuyama, S.; Yamauchi, K.; Yumoto, H.; Koyama, T.; Ohashi, H.; Tono, K.; Yabashi, M. Development of an Experimental Platform for Combinative Use of an XFEL and a High-Power Nanosecond Laser. Appl. Sci. 2020, 10, 2224. https://doi.org/10.3390/app10072224
Near Infrared Faint Galaxies in the Subaru Deep Field: Comparing the Theory with Observations for Galaxy Counts, Colors, and Size Distributions to K=24.5
Galaxy counts in the K band, (J-K)-colors, and apparent size distributions of
faint galaxies in the Subaru Deep Field (SDF) down to K~24.5 were studied in
detail. Special attention has been paid to take into account various selection
effects including the cosmological dimming of surface brightness, to avoid any
systematic bias which may be the origin of controversy in previously published
results. We also tried to be very careful about systematic model uncertainties;
we present a comprehensive surveys of these systematic uncertainties and
dependence on various parameters. We found that the pure luminosity evolution
(PLE) model is well consistent with all the SDF data down to K~22.5, without
any evidence for number or size evolution in a low-density, Lambda-dominated
flat universe which is now favored by various cosmological observations. If the
popular Lambda-dominated universe is taken for granted, our result then gives a
strong constraint on the number evolution of giant elliptical or early-type
galaxies to z~1-2 which must be met by any models in the hierarchically
clustering universe, since such galaxies are the dominant population in this
magnitude range (K~22.5, we found
a slight excess of observed counts over the prediction of the PLE model when
elliptical galaxies are treated as a single population. We suggest that this
discrepancy reflects some number evolution of dwarf galaxies and/or the
distinct populations of giant and dwarf elliptical galaxies which have been
known for local elliptical galaxies.Comment: References updated. Accepted by Ap
Transonic Dislocation Propagation in Diamond
The motion of line defects (dislocations) has been studied for over 60 years
but the maximum speed at which they can move is unresolved. Recent models and
atomistic simulations predict the existence of a limiting velocity of
dislocation motions between the transonic and subsonic ranges at which the
self-energy of dislocation diverges, though they do not deny the possibility of
the transonic dislocations. We use femtosecond x-ray radiography to track
ultrafast dislocation motion in shock-compressed single-crystal diamond. By
visualizing stacking faults extending faster than the slowest sound wave speed
of diamond, we show the evidence of partial dislocations at their leading edge
moving transonically. Understanding the upper limit of dislocation mobility in
crystals is essential to accurately model, predict, and control the mechanical
properties of materials under extreme conditions
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