1,190 research outputs found
New insights in high-energy electron emission and underlying transport physics of nanocrystalline Si
No full textInactivation Process of Gamma-Aminobutyric Acid Action on the Isolated Ileum
No full text1) The action and inactivation process of GABA were analyzed in the excised ileum of rabbits and guinea pigs. 2) GABA usually produced an increase in the spontaneous activity of the ileum of rabbits, while in guinea pigs the action was in general depressive. 3) GABA action on nicotine-induced responses was gradually inactivated immediately after the application with a half-decay time of approximately 60 to 120 sec. And became completely ineffective within 2 to 7 min. 4) The inactivation process was independent upon the pH of GABA solution and the dose of GABA administered. The author wishes thank prof. H. Yamaguchi, Department of Pharmacology, for his technical guidance
Author Correction: Rock fluidization during peak-ring formation of large impact structures.
No full textIn this Article, the middle initial of author Kosei E. Yamaguchi (of the IODP-ICDP Expedition 364 Science Party) was missing and his affiliation is to Toho University (not Tohu University). These errors have been corrected online
Axisymmetric polydimethysiloxane microchannels for in vitro hemodynamic studies
No full textThe current microdevices used for biomedical research are often manufactured using microelectromechanical systems (MEMS) technology. Although it is possible to fabricate precise and reproducible rectangular microchannels using soft lithography techniques, this kind of geometry may not reflect the actual physiology of the microcirculation. Here, we present a simple method to fabricate circular polydimethysiloxane (PDMS) microchannels aiming to mimic an in vivo microvascular environment and suitable for state-of-the-art microscale flow visualization techniques, such as confocal µPIV/PTV. By using a confocal µPTV system individual red blood cells (RBCs) were successfully tracked trough a 75 µm circular PDMS microchannel. The results show that RBC lateral dispersion increases with the volume fraction of RBCs in the solution, i.e. with the hematocrit
Uniform Ductility of High Carbon Steels
No full textTitle: Uniform Ductility of High Carbon Steels, Author: Masaru Yamaguchi, Location: ThodeThe effect of microstructure on uniform ductility was analyzed by utilizing a fact that uniform ductility is equal to the work hardening coefficient in parabolic true stress-true strain equation. A Hall-Petch relation was found for the flow stress of lamellar and spheroidized high carbon steels. The uniform ductility was formulated as a function of reciprocal flow stress and found to fit the experimental data.An attempt to interpret the results obtained, based on the scanning and transmission electron microscopy observations, were given.ThesisMaster of Engineering (ME
Additional Data to the Paleomagnetic Pole Positions for the Cretaceous Rocks in Yamaguchi Prefecture West Japan.
No full textIn the previous report (1966), the present author submitted a datum on the Cretaceous paleomagnetic pole positions due to the natural remanent magnetizations (nrm) of some inkstones and quartz porphyry rocks of Yamaguchi Prefecture, West Japan. In the brief note, the additional data to the Cretaceous pole positions mentioned above, with respect to the similar rocks of the same region of Japan, have been shown. The nrm of some red shales of the Cretaceous inkstone series and also the nrm of Cretaceous andesites were measured by means of an astatic magnetometer. The stability of these specimens was checked by the storage test in the laboratory, which show that the specimens submitted have rather stable nrm. Locality 1 is situated in somewhat northern of Locality 4 which is the previous sampling locality for the inkstone series. Locality 2 is about 20 km westwardly aparted from Locality 4. Locality 3 overlaps Locality 4. All of the rock specimens of Localities 1, 2, and 4 belong to the same inkstone series, and the rocks of Locality 3 are andesites
Effects of static stretching for 30 seconds and dynamic stretching on leg extension power.
No full textYamaguchi, T., and K. Ishii. Effects of static stretching for 30 seconds and dynamic stretching on leg extension power. J. Strength Cond. Res. 19(3):677–683. 2005.—The purposes of this study were to clarify the effects of static stretching for 30 seconds and dynamic stretching on leg extension power. Eleven healthy male students took part in this study. Each subject performed static stretching and dynamic stretching on the 5 muscle groups in the lower limbs and nonstretching on separate days. Leg extension power was measured before and after the static stretching, dynamic stretching, and nonstretching. No significant difference was found between leg extension power after static stretching (1788.5 ± 85.7 W) and that after nonstretching (1784.8 ± 108.4 W). On the other hand, leg extension power after dynamic stretching (2022.3 ± 121.0 W) was significantly (p < 0.01) greater than that after nonstretching. These results suggest that static stretching for 30 seconds neither improves nor reduces muscular performance and that dynamic stretching enhances muscular performance
Analisis Alih Kode dan Campur Kode dalam Video Youtube Kenta Yamaguchi
No full textThis study examines Code Switching and Code Mixing in Kenta Yamaguchi's Youtube Videos. The purpose of this study is to describe the form and causes of code switching and code mixing used by Kenta Yamaguchi in each of his videos. The data collection technique in this research is the free-of-conversation listening technique and the library study technique, namely by reading reference books related to Code Switching and Code Mixing, then watching a Youtube video hosted by Kenta Yamaguchi. The method that the author uses is a descriptive method, namely by setting several video parts to get data from Kenta's dialogue and analyze it. Based on the results of the analysis of 12 data found, there are 6 data in the form of code switching and 5 data in the form of code mixing. All forms of code switching are external code switching in the form of sentences and words. Factors causing code switching are third person factors, situations, listeners, wanting to show their identity and learning. The form of code mixing is in the form of word insertion elements, dialects and clauses. The causative factor of code mixing is the factor because it wants to show its learning, situation, habits and relaxation
Fulminant Hepatitis in Childhood with Special Reference to the Life-saving Value of Exchange Transfusion and the Ensuing Development of Severe Anemia
No full textInactivation Process of Gamma-Aminobutyric Acid Action on the Isolated Ileum
No full text1) The action and inactivation process of GABA were analyzed in the excised ileum of rabbits and guinea pigs. 2) GABA usually produced an increase in the spontaneous activity of the ileum of rabbits, while in guinea pigs the action was in general depressive. 3) GABA action on nicotine-induced responses was gradually inactivated immediately after the application with a half-decay time of approximately 60 to 120 sec. And became completely ineffective within 2 to 7 min. 4) The inactivation process was independent upon the pH of GABA solution and the dose of GABA administered. The author wishes thank prof. H. Yamaguchi, Department of Pharmacology, for his technical guidance
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