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Article
Takashi Itoh
English
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Article
Open AccessNucleobindin 2 inhibits senescence in gastric carcinoma
Here, we focused on the role of Nucleobindin 2 (NUCB2), a multifunctional protein, in gastric carcinoma (GC) progression. NUCB2 expression was investigated in 150 GC cases (20 non-invasive (pT1) and 130 invasi...
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Enhanced Photoanodic Activity and Outermost Surface Crystallinity of Tungsten Oxide via High-temperature Sintering
Tungsten oxide (WO3) is a promising photoanode material capable of water oxidation under visible-light irradiation. Although WO3 is usually prepared via sintering at 500 °C–550˚C, this work shows that high-temper...
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Open AccessStructural and functional differences in auto-antibody positive compared to auto-antibody negative hypothyroid patients with chronic thyroiditis
Most primary hypothyroidism in adults is caused by chronic thyroiditis. Autoantibodies such as anti-thyroglobulin antibody (TgAb) and anti-thyroid peroxidase antibody (TPOAb) are involved in the pathogenesis o...
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Open AccessUsefulness of cortisol/ACTH ratio (CAR) for diagnosis of cushing's syndrome: comparison of CAR with findings in dexamethasone suppression test
Cushing's syndrome and subclinical Cushing's syndrome (SCS) are conditions of increased cortisol secretion from the adrenal glands. Cushing's syndrome includes adrenocorticotropic hormone (ACTH)-dependent Cush...
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Integration of large heterologous DNA fragments into the genome of Thermococcus kodakarensis
In this study, a transformation system enabling large-scale gene recombination was developed for the hyperthermophilic archaeon Thermococcus kodakarensis. Using the uracil auxotroph T. kodakarensis KU216 (∆pyrF) ...
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Optimization of Degreasing-Sintering Process for Mg2Si/PLA Mixture and Influences of Additive Amount of Al on Sintered Density and Thermoelectric Performance of Mg2Si Fabricated by the Optimized Process
Fused deposition modelling (FDM) type of 3D printing is widely used for manufacturing complex shaped polymer products. Recently, the metal/polymer composite products can be made by 3D printer using metal/polym...
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Thermoelectric Properties of Al-doped Mg2Si Compounds Prepared via Three Kinds of Process for Grain Refinement
Dimagnesium silicide is an eco-friendly thermoelectric compound whose constituent elements of both Mg and Si are non-toxic and exist in abundance on the earth. In this study, we attempted to control the therma...
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Influence of Aluminum Addition on Thermoelectric Performance of Mg2Si Compound under Air Exposure with Temperature Difference
Dimagnesium silicide (Mg2Si) is an eco-friendly material useful for thermoelectric generation using waste heat of temperature range of 600 to 900 K. To improve the thermoelectric performance of the Mg2Si compound...
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Synthesis of CaMn2O4-related electrocatalyst for oxygen evolution electrode of water-splitting
Water-splitting by using electric power produced by solar cells is promising system to produce hydrogen without fossil fuels. Oxygen evolving catalyst is, however, major problem to prevent using this system wi...
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Open AccessOrbital-specific Tunability of Many-Body Effects in Bilayer Graphene by Gate Bias and Metal Contact
Graphene, a 2D crystal bonded by π and σ orbitals, possesses excellent electronic properties that are promising for next-generation optoelectronic device applications. For these a precise understanding of quas...
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Natronomonas gomsonensis sp. nov., isolated from a solar saltern
A halophilic archaeal strain, SA3T, was isolated from sediment of a solar saltern in Gomso Bay, Republic of Korea. Cells of strain SA3T were observed to be coccoid-shaped, to lyse in distilled water, Gram stain-n...
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Nucleation and polymorphism of trans-1,4-polyisoprene containing copper phthalocyanine
The effect of α- or β-copper phthalocyanine (CuPc) as a nucleating agent during the crystallization of trans-1,4-polyisoprene (TPI) was evaluated using polarized optical microscopy (POM), differential scanning ca...
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Identification and histamine formation of Tetragenococcus isolated from Thai fermented food products
Forty-one tetrad-forming halophilic lactic acid bacteria were isolated from 7 kinds of fermented foods in Thailand. All the isolates were identified as the genus Tetragenococcus by their phenotypic characteristic...
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Influence of Addition of Alumina Nanoparticles on Thermoelectric Properties of Higher Manganese Silicide
Higher manganese silicide (HMS) is a low-cost and eco-friendly thermoelectric material available for recovering waste heat of 500 to 900 K. In this research, we tried to uniformly disperse the alumina nanopart...
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Effects of Heavy Element Substitution on Electronic Structure and Lattice Thermal Conductivity of Fe2VAl Thermoelectric Material
By using first-principles cluster calculations, we identified that Ta or W substitution for V is useful for decreasing the lattice thermal conductivity of the Fe2VAl Heusler alloy without greatly affecting the el...
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Effects of GaN Thin Layer on InGaN at Electrolyte-Semiconductor Interface for the Application of Photoelectrochemical Water Splitting
Photoelectrochemical properties of nitride semiconductors are paid attention due to their possibilities of water splitting by visible light absorption. However, the photocurrent density of InxGa1-xN, which absorb...
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Development of a Thermal Rectifier Usable at High Temperature
By using Al-based metallic alloys characterized by a disordered structure and a narrow pseudogap of a few hundred meV in energy width persisting at the Fermi level, we succeeded in preparing materials possessi...
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Thermoelectric Properties of Carbon Nanotubes Added n-type CoSb3 Compound
Cobalt triantimonide compounds are well known as materials with good thermoelectric properties over temperature range of 550-900 K. For further improving thermoelectric performance, reduction of thermal conduc...
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Sphingomonas jejuensis sp. nov., isolated from marine sponge Hymeniacidon flavia
A Gram-negative, non-motile, rod shaped, and orange-pigmented chemoheterotrophic bacterium, strain MS-31T was isolated from the marine sponge Hymeniacidon flavia, collected from near Jeju Island, Korea. The Strai...
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Open AccessGain and loss of an intron in a protein-coding gene in Archaea: the case of an archaeal RNA pseudouridine synthase gene
We previously found the first examples of splicing of archaeal pre-mRNAs for homologs of the eukaryotic CBF5 protein (also known as dyskerin in humans) in Aeropyrum pernix, Sulfolobus solfataricus, S. tokodaii, a...
