A5006790122- Plant Pathogens and Fungal Diseases
- 2D Materials and Applications
- Plant Physiology and Cultivation Studies
- Plant Pathogenic Bacteria Studies
- Thermodynamic and Structural Properties of Metals and Alloys
- Plant Disease Resistance and Genetics
- Boron and Carbon Nanomaterials Research
- High-pressure geophysics and materials
- Inflammatory mediators and NSAID effects
- Speech and Audio Processing
- Horticultural and Viticultural Research
- Silicon and Solar Cell Technologies
- Traditional Chinese Medicine Studies
- Lymphatic Disorders and Treatments
- Machine Learning in Materials Science
- Eicosanoids and Hypertension Pharmacology
- Vascular Malformations and Hemangiomas
- Optical and Acousto-Optic Technologies
- Semiconductor Quantum Structures and Devices
- Clinical Nutrition and Gastroenterology
- Metabolism and Genetic Disorders
- Advanced Chemical Physics Studies
- Escherichia coli research studies
- Heusler alloys: electronic and magnetic properties
- Plant Virus Research Studies
Keio University
1974-2024
Chiba University Hospital
2018-2024
Chiba University
2017-2023
Niigata University
2022
Miyagi University
2009-2019
Nagoya City University
2017
Nagasaki University
2006-2016
Gakushuin University
2013-2016
Kyoto University
2014
Screen
2013
The energy band structure of black phosphorus is calculated for the first time using tight binding approach. It shown that a narrow gap semiconductor with direct at zone edge in (0 0 k z ) direction. pressure dependence to be -2.61 ×10 -2 eV/kbar, its experimental counterpart being -2.51 eV/kbar. optical absorption and electrical conductivity single crystals are discussed terms structure.
First, the authors calculate frequency-dependent dielectric function of black phosphorus by using band structure and wavefunctions obtained self-consistent pseudopotential calculation. Then these results, they discuss optical properties such as KPS, UPS, plasmon frequency reflectance in visible, VUV soft X-ray regions. Experimental results for all are explained consistently theoretical results.
The energy band structure of black phosphorus is calculated by using self-consistent pseudopotential method. resulting has the direct minimum gap at point Z in Brillouin zone agreement with result tight-binding approach. Effective electron and hole masses level shift edge pressure are from bands obtained. dependence good experiment, but anisotropy effective contradicts that electrical conductivity measured for single crystal. nature optical absorption discussed terms structure.
The spin-orbit couplings in the valence bands of zincblende and wurtzite structures such as cuprous halides ZnO are investivigated tight-binding approximation. It is shown that d-orbital cation contributes a negative term to coupling band at k =0 these compounds and, result it, splittings CuCl inverted.
The circadian clock is driven by cell-autonomous transcription/translation feedback loops. BMAL1 transcription factor an indispensable component of the positive arm this molecular oscillator in mammals. Here, we present a genetic screening assay for mutant proteins that based on real-time rhythm monitoring cultured fibroblasts. By using assay, identified domain extreme C terminus plays essential role rhythmic control E-box-mediated transcription. Remarkably, last 43 aa are required...
An extended perturbation theory of IV and III-V covalent semiconductors based on a model pseudopotential method is presented. In the theory, in addition to usual second order perturbation, higher terms with respect corresponding bonding effect are taken into account under so-called isotropic energy gap model. The applied calculation cohesive energies compressibilities these crystals. A good agreement between experiment obtained.
Needle-shaped and film- or plate-shaped black phosphorus single crystals were prepared by an improved bismuth-flux method. The conversion of red to white the growth from solution in liquid bismuth performed evacuated quartz-glass apparatus without breaking vacuum. Needle measured about 5 mm length 10 100 µm thickness. thickness film plate ranged 1 width was usually above µm, generally increasing with decreasing Some crystal morphologies observed analyzed crystallographically.
We have generated a monoclonal antibody (R-10G) specific to human induced pluripotent stem (hiPS)/embryonic (hES) cells by using hiPS (Tic) as an antigen, followed differential screening of mouse hybridomas with and embryonal carcinoma (hEC) cells. Upon western blotting R-10G, hiPS/ES cell lysates gave single but unusually diffuse band at position corresponding >250 kDa. The antigen protein was isolated from the (iPS) affinity column R-10G. R-10G positive resistant digestion peptide...
Glycoproteins of the microvillus membranes from rat small intestinal epithelial cells were examined for their ability to bind cholera toxin. Membrane glycoproteins prepared by Ricinus communis agglutinin-Sepharose affinity chromatography, which free glycolipids, shown be able form complexes with iodinated toxin gel filtration column chromatography. These further characterized subjecting complex tritiated receptors, toxin, and anti-cholera antibody sodium dodecyl sulfate-polyacrylamide...
Phonon dispersion curves for Si and Ge are calculated by using the perturbation theory developed in our previous paper, where based on pseudopotentials has been extended taking into account higher order terms corresponding to covalent bond effect so as be applicable IV III-V semiconductors. The resulting phonon qualitatively good agreement with experiment spite of introducing no adjustable parameter explain crossing LO TO along [100] direction minimum [110] II optic mode near zone boundary.
L -level widths due to the Auger and radiative processes are calculated for light metals such as Al, Mg Na by using a theory of soft X-ray emission developed Morita Watabe in terms Green's function method. Results nearly consistent with level observed experimentally. It is explained that 1 - 2,3 line spectra have very weak intensities -emission band cannot be observed. The intensity ratios between 3 2 equal two, degeneracy ratio these two levels, while much larger than two. suggested large...
The formation and migration energies of a vacancy in Si Ge are calculated by using the perturbation theory developed authors' previous paper, which terms pseudopotentials has been extended including higher order corresponding to covalent bonding effect so as be applicable IV III-V semiconductors. In calculations, lattice distortions around taken into account. energy is 2.74∼2.84 eV for 2.53∼2.63 Ge. 0.38∼0.50 0.31∼0.40 Experimental data discussed comparison with these theoretical values.
Abstruct-A visual processing system for early vision using massively parallel is described. The named SPE-4k (Sensory Processing Element - 4k) has 64x64~4096 elements (PE’s) which are directly connected with photo detectors in parallel. Eight PE’s integrated into an originally developed LSI. An mesh type networks used interconnection among PE’s. carries out input and of information at extremely high speed by processing. Edge detection four neighborhoods, example, can be done 3.3~s. Since the...
Calculation of the lattice dynamical properties black phosphorus, which is a narrow-gap covalent semiconductor with layered structure, based on valence force field model presented. The results obtained are in good agreement experiments, except for infrared active optical modes. discussed connection crystal structure and chemical-bonding nature phosphorus.
The gastrointestinal involvement and immunological findings in 16 patients with Behçet's disease are described. Four of 15 biopsy specimens jejunal mucosa showed marked lymphangiectasia the lamina propria similar to appearance which was thought be a characteristic finding protein-losing enteropathy. None had hypoproteinaemia. Increases serum immunoglobulin IgA were proved six cases; IgM, five 15; IgG, one 15. Electron microscopic studies that there thousands precipitated lymph protein bodies...
Olfactory dysfunction in the post COVID-19 condition reported worldwide are refractory for some patients. For this reason, appropriate treatment is desired. In article, we describe two cases of olfactory that was improved by traditional acupuncture treatment. By using Yingxiang point (LI20), which said to improve sense smell since ancient times, performed 1-2 times a week patients about 6 and 7 months after diagnosis COVID-19. Acupuncture needles with body length 30 mm diameter 0.16 were...
Small intestinal mucosa obtained from six fasting patients with cholera by a peroral biopsy technique was studied the electron microscope. The cultures of their rectal swabs were all positive for <i>Vibrio cholerae.</i> In absorptive cells, large pseudopod-like cytoplasmic processes deformed microvilli or without (blebs) projected into lumen apical cell surface, interrupting microvillous border. crypts some undifferentiated crypt cells possessed projections which extended lumen. swelling...
The electron interaction in insulators is studied with special attentions focused on the dielectric properties and exciton states. Use made of Hubbard's formalism propagator for an electron-hole pair. following results are obtained: (a) relations between internal constant external one elucidated, (b) expression given a convenient form to see local field corrections due lattice periodicity, (c) conditions applicability effective mass equation (EME) shallow excitons clear, (d) screening...