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Showing 1 to 12 of 444 entries
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Dynamic Equilibrium Model for a Bulk Nanobubble and a Microbubble Partly Covered with Hydrophobic Material.

Langmuir : the ACS journal of surfaces and colloids

Yasui K, Tuziuti T, Kanematsu W, Kato K.
PMID: 26972826
Langmuir. 2016 Nov 01;32(43):11101-11110. doi: 10.1021/acs.langmuir.5b04703. Epub 2016 Mar 24.

The dynamic equilibrium model for a bulk nanobubble partly covered with hydrophobic material in water is theoretically and numerically studied. The gas diffusion into a bubble near the peripheral edge of the hydrophobic material on the bubble surface balances...

Inhibition of Glucan Synthesis by Flavipin-crosslinked Casein Polymers.

Bioscience, biotechnology, and biochemistry

Hayashida O, Nakano Y, Hasumi K, Endo A.
PMID: 28862563
Biosci Biotechnol Biochem. 1997 Jan;61(5):903-904. doi: 10.1271/bbb.61.903.

Mutastein, a casein polymer that inhibits insoluble glucan synthesis by Streptococcus sobrinus, was produced when Aspergillus terreus was grown in a medium containing α-casein. In these experiments, it was shown that flavipin (3,4,5-trihydroxy-6-methyl-o-phthalaldehyde) isolated from cultures of A. terreus...

Academic Responses to Fukushima Disaster.

Asia-Pacific journal of public health

Yasui K, Kimura Y, Kamiya K, Miyatani R, Tsuyama N, Sakai A, Yoshida K, Yamashita S, Chhem R, Abdel-Wahab M, Ohtsuru A.
PMID: 28330400
Asia Pac J Public Health. 2017 Mar;29(2):99S-109S. doi: 10.1177/1010539516685400.

Since radiation accidents, particularly nuclear disasters, are rarer than other types of disasters, a comprehensive radiation disaster medical curriculum for them is currently unavailable. The Fukushima compound disaster has urged the establishment of a new medical curriculum in preparation...

Rhodium-Catalyzed C-O Bond Alkynylation of Aryl Carbamates with Propargyl Alcohols.

Organic letters

Yasui K, Chatani N, Tobisu M.
PMID: 29578720
Org Lett. 2018 Apr 06;20(7):2108-2111. doi: 10.1021/acs.orglett.8b00674. Epub 2018 Mar 26.

The rhodium-catalyzed alkynylation of aryl carbamates with propargyl alcohols is described. This methodology can provide aryl acetylenes from aryl carbamates via C-O bond activation. The use of propargyl alcohols as alkynylating agents allows the use of a variety of...

Study of pentoxifylline effects on motility and viability of spermatozoa from infertile asthenozoospermic males.

Nigerian medical journal : journal of the Nigeria Medical Association

Ghasemzadeh A, Karkon-Shayan F, Yousefzadeh S, Naghavi-Behzad M, Hamdi K.
PMID: 27942099
Niger Med J. 2016 Nov-Dec;57(6):324-328. doi: 10.4103/0300-1652.193857.

BACKGROUND: The quality of semen is one of the major parameters in male infertility. Pentoxifylline, a methylxanthine derivative, is an agent primarily used in the treatment of intermittent claudication and other vascular disorders. Studies have shown that pentoxifylline enhances...

Seed/Catalyst-Free Growth of Gallium-Based Compound Materials on Graphene on Insulator by Electrochemical Deposition at Room Temperature.

Nanoscale research letters

Rashiddy Wong F, Ahmed Ali A, Yasui K, Hashim AM.
PMID: 26055478
Nanoscale Res Lett. 2015 Dec;10(1):943. doi: 10.1186/s11671-015-0943-y. Epub 2015 May 27.

We report the growth of gallium-based compounds, i.e., gallium oxynitride (GaON) and gallium oxide (Ga2O3) on multilayer graphene (MLG) on insulator using a mixture of ammonium nitrate (NH4NO3) and gallium nitrate (Ga(NO3)3) by electrochemical deposition (ECD) method at room...

Synthesis of gallium nitride nanostructures by nitridation of electrochemically deposited gallium oxide on silicon substrate.

Nanoscale research letters

Ghazali NM, Yasui K, Hashim AM.
PMID: 25593562
Nanoscale Res Lett. 2014 Dec 18;9(1):685. doi: 10.1186/1556-276X-9-685. eCollection 2014.

Gallium nitride (GaN) nanostructures were successfully synthesized by the nitridation of the electrochemically deposited gallium oxide (Ga2O3) through the utilization of a so-called ammoniating process. Ga2O3 nanostructures were firstly deposited on Si substrate by a simple two-terminal electrochemical technique...

Clinical response of advanced cancer patients to cellular immunotherapy and intensity-modulated radiation therapy.

Oncoimmunology

Hasumi K, Aoki Y, Wantanabe R, Mann DL.
PMID: 24349874
Oncoimmunology. 2013 Oct 01;2(10):e26381. doi: 10.4161/onci.26381. Epub 2013 Oct 17.

Patients afflicted with advanced cancers were treated with the intratumoral injection of autologous immature dendritic cells (iDCs) followed by activated T-cell infusion and intensity-modulated radiation therapy (IMRT). A second round of iDCs and activated T cells was then administered...

Study on the spatial distribution of the liquid temperature near a cavitation bubble wall.

Ultrasonics sonochemistry

Shen Y, Yasui K, Sun Z, Mei B, You M, Zhu T.
PMID: 26585020
Ultrason Sonochem. 2016 Mar;29:394-400. doi: 10.1016/j.ultsonch.2015.10.015. Epub 2015 Oct 23.

A simple new model of the spatial distribution of the liquid temperature near a cavitation bubble wall (Tli) is employed to numerically calculate Tli. The result shows that Tli is almost same with the ambient liquid temperature (T0) during...

Single-bubble sonoluminescence from noble gases.

Physical review. E, Statistical, nonlinear, and soft matter physics

Yasui K.
PMID: 11308698
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Mar;63(3):035301. doi: 10.1103/PhysRevE.63.035301. Epub 2001 Feb 13.

Single-bubble sonoluminescence (SBSL) from noble gases in water is studied theoretically in order to clarify the reason of the distinguished feature that the luminescence is strong for all noble gases, while the other systems of cavitation luminescence are greatly...

Mechanism of single-bubble sonoluminescence.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Yasui K.
PMID: 11969958
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Aug;60(2):1754-8. doi: 10.1103/physreve.60.1754.

The mechanism of the light emission of single-bubble sonoluminescence (SBSL) is studied theoretically based on the quasiadiabatic compression model. It is concluded that SBSL is not the blackbody radiation but the thermal radiation. It is clarified that the shape...

Achievement of a 920-MHz high resolution NMR.

Journal of magnetic resonance (San Diego, Calif. : 1997)

Hashi K, Shimizu T, Goto A, Kiyoshi T, Matsumoto S, Wada H, Fujito T, Hasegawa K, Yoshikawa M, Miki T, Ito S, Hamada M, Hayashi S.
PMID: 12165269
J Magn Reson. 2002 Jun;156(2):318-21. doi: 10.1006/jmre.2002.2559.

We have developed a 920-MHz NMR system and performed the proton NMR measurement of H(2)O and ethylbenzene using the superconducting magnet operating at 21.6 T (920 MHz for proton), which is the highest field produced by a superconducting NMR...

Showing 1 to 12 of 444 entries