Search Results - (Author, Cooperation:K. Abe)

2018-12-21

Institute of Physics Publishing (IOP)

1748-0221

Physics

2018-04-04

American Physical Society (APS)

0556-2821

1089-4918

Physics

Particle Physics Experiments

2018-01-09

American Physical Society (APS)

0556-2821

1089-4918

Physics

Particle Physics Experiments

2018-08-01

American Physical Society (APS)

0556-2821

1089-4918

Physics

2018-07-31

American Physical Society (APS)

0556-2821

1089-4918

Physics

Particle Physics Experiments

2018-02-03

American Physical Society (APS)

0556-2821

1089-4918

Physics

Particle Physics Experiments

2018-08-11

American Physical Society (APS)

0556-2821

1089-4918

Physics

Particle Physics Experiments

2013-09-07

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

Animals ; Epididymis/abnormalities ; *Epigenesis, Genetic ; Female ; *Gene Expression Regulation, Developmental ; Histones/*metabolism ; Jumonji Domain-Containing Histone Demethylases/genetics/*metabolism ; Male ; Methylation ; Mice ; Mice, Mutant Strains ; Mice, Transgenic ; Ovary/abnormalities/enzymology ; *Protein Processing, Post-Translational ; Sex Determination Processes/*genetics ; Testis/abnormalities/enzymology ; Uterus/abnormalities

2014-01-25

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

Animals ; *Association ; CA1 Region, Hippocampal/cytology/*physiology ; Entorhinal Cortex/cytology/*physiology ; GABAergic Neurons/physiology ; Interneurons/physiology ; Membrane Proteins/genetics ; *Memory, Episodic ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Nerve Net ; Neurons/*physiology

2018-10-25

American Physical Society (APS)

0031-9007

1079-7114

Physics

Elementary Particles and Fields

2018-05-22

American Physical Society (APS)

0556-2821

1089-4918

Physics

Experiments in gravity, cosmology, cosmic rays

2011-08-27

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

2018-09-28

American Society of Hematology (ASH)

0006-4971

1528-0020

Biology

Medicine

Thrombocytopenia, Myeloid Neoplasia, Platelets and Thrombopoiesis

2018-07-27

American Society of Hematology (ASH)

0006-4971

1528-0020

Biology

Medicine

Red Cells, Iron, and Erythropoiesis

1089-7550

AIP Digital Archive

Physics

The new frames in physics has united the physics of materials and a new terminology of supercorresponding c- and q-number systems is introduced for the classical and quantal physics. In the q-number system, the electron field as represented by the Schrödinger or Dirac wave function is regarded as the electron itself, which interacts with the zero-point photon field and gives the mass renormalization. The new frames can analyze this subject without the divergence difficulty. The resultant decrease in the self-energy of the electron of about 1 eV is proposed to be dependent on the environmental crystal situation, and may become cooperative to generate coherence to the conduction electron-photon coupled system. Our basic c-number equation includes the vector potential of the interacting photon field, the microscopic electronic electric current, the frequency of the considered photon field, the original plasma frequency of the conduction electrons, and an equivalent frequency and the resonance frequency of the bound-state electrons. Placing reasonable values for these constants, we get a detailed k-ω diagram for the photon-electron field complex. By the action of the bound-state electrons, the original plasma frequency of about 4 eV is separated into two, with the lower value of about 1.7 eV (2.6×1015 s−1). This branch crosses the free-photon mode near the same frequency, opening a sharp narrow window for the zero-point free-photon field. The Fermi frequency of the conduction electrons is about the same with the wavelength of about 10 A(ring), which may fit one of the crystal dimensions. The zero-point photon-electron field complex at this frequency may couple to the electron field at the Fermi level through the induced zero-point ripple electron field. The Heisenberg uncertainty, ΔEΔt≥(h-dash-bar), may operate to the window for generating the longer time-space coherence. We call this mechanism CRCG (crystallo-radiative coherence generator).

Electronic Resource

1089-7550

AIP Digital Archive

Physics

Voltage shift phenomena of the hysteresis loop were characterized for a c-axis oriented heteroepitaxial BaTiO3 film by means of switching current measurements using various types of pulse sequences. During application of voltage, the hysteresis loop gradually shifted along the voltage axis according to the polarity of the voltage. Even after the application of voltage, while the top and bottom electrodes were short-circuited, the hysteresis loop continued to move. Under certain conditions, a part of the hysteresis loop shifted back, whereas the rest shifted forward. These results were explained, assuming that there is a nonswitching layer between the ferroelectric layer and the bottom electrode, and that the discontinuity of polarization can be compensated by injection of negative charges from the electrode. It was suggested that the nonswitching layer is possibly formed by relaxation of lattice misfit strain in the heteroepitaxial ferroelectric thin film. © 2002 American Institute of Physics.

Electronic Resource

1471-4159

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Abstract: The effect of pentobarbital on the induction of heat shock protein (HSP) 70 and heat shock cognate protein (HSC) 70 mRNAs after transient global ischemia in gerbil brains was investigated by in situ hybridization using cloned cDNA probes selective for each mRNA species. In sham control brains, HSP70 mRNA was scarcely present, whereas HSC70 mRNA was present in most cell populations. After a 5-min occlusion of bilateral common carotid arteries, HSP70 and HSC70 mRNAs were induced together in several cells and were especially dense in hippocampal dentate granule cells at 3 h, but the strong hybridization of the mRNAs continued only in hippocampal CA1 cells by 2 days. At 7 days after the ischemia, CA1 neuronal cell death was apparent, and the HSP70 mRNA disappeared and HSC70 mRNA content returned to the sham level, except for in the CA1 cells. Pretreatment with pentobarbital (40 mg/kg, i.p.) greatly reduced or inhibited the induction of HSP70 and HSC70 mRNAs at both early (3-h) and late (2-day) phases after ischemia. The drug also prevented CA1 cell death at 7 days along with the maintenance of expression of HSC70 mRNA at the sham control level. Hypothermic effects of pentobarbital were noted at 30 and 60 min after the reperfusion, whereas at 2 h there was no statistical significance between the control and drug-treated groups. The great reduction of HSP70 and HSC70 mRNA induction at both early and late phases after ischemia suggests that pentobarbital reduces intra- and/or postischemic stress and may protect CA1 cells from ischemic damage. These effects of the drug may be mainly due to its specific action rather than its hypothermic effects.

Electronic Resource

1398-9995

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Background: A definite threshold of the peripheral blood eosinophile count that indicates the presence of hypereosinophilia-associated diseases has not yet been determined.Methods: The threshold eosinophile count at which cases of hypereosinophilia-associated diseases (n = 25) can be differentiated from those of bronchial asthma (n = 101) was determined. Then, the incidences of eosinophile counts greater than 1.0 × 109/l or the threshold level, were studied by analysis of 43 805 samples sent to the laboratory, and the diseases associated with the increased counts were determined.Results: The eosinophile count in cases of hypereosinophilia-associated diseases and in those of bronchial asthma were 10.967 ± 1.680 × 109/l and 0.574 ± 0.045 × 109/l, respectively (P 〈 0.001); the threshold was 2.052 × 109/l. The percentages of samples with an eosinophile count of more than 1.0 × 109/l and 2.052 × 109/l were 0.6% and 0.1%, respectively; the latter comprised of 41 samples from 24 patients including eight with hypereosinophilia-associated diseases. The patients with hypereosinophilia-associated diseases had a significantly higher count, and a higher incidence of counts of more than 2.052 × 109/l, than others, including patients with malignancies and symptoms conventionally referred as “atopic diseases”.Conclusion: Hypereosinophilia-associated diseases are associated with a very high eosinophile count of more than 2.052 × 109/l, which was observed rarely.

Electronic Resource

1750-3841

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Process Engineering, Biotechnology, Nutrition Technology

Activity of fish muscle glutathione peroxidase, which presumably protects muscle from oxidative deterioration during storage and processing, was found in both Japanese jack mackerel and skipjack tuna. Activity of the peroxidase and level of reduced glutathione (enzyme substrate) decreased during 5 days storage at 4°C. Lipid hydroperoxides were substantially formed in the fish muscles during the storage.

Electronic Resource

1398-9995

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Background: Th2 cells are thought to be involved in eosinophilic inflammation of the lung. CC chemokine receptor 4 (CCR4) has been identified as a specific receptor for both thymus and activation-regulated chemokine (TARC) and macrophage-derived chemokine (MDC), and is preferentially expressed on Th2 cells.Objective: Our aim was to evaluate the role of Th2 cells in the lung of patients with eosinophilic pneumonia (EP).Methods: The concentrations of TARC, MDC, and interleukin (IL)-5 were measured in bronchoalveolar lavage fluid (BALF) by ELISA. Proportion of CCR4-expressing CD4+ T cells (CCR4+ CD4+ T cells) was determined by flow cytometry.Results: TARC and MDC concentrations in BALF were higher in patients with EP than in normal subjects. The proportion of CCR4-expressing cells among CD4+ T cells was higher in BALF than in peripheral blood of patients with EP. There was a significant correlation between the number of CCR4+ CD4+ T cells and the levels of TARC, MDC, and IL-5 in BALF of patients with EP.Conclusions: Our data suggest that Th2 cells, which express CCR4 and its ligands (TARC and MDC), contribute to the pathogenesis of EP in the lung.

Electronic Resource