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Showing 25 to 36 of 1050 entries
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Discontinuous elongation of nematic gels by a magnetic field.

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

Matsuyama A, Kato T.
PMID: 11461210
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Jul;64(1):010701. doi: 10.1103/PhysRevE.64.010701. Epub 2001 Jun 06.

The effects of a magnetic field on the swelling of a nematic gel immersed in a low molecular weight liquid crystal solvent are examined by using a mean field theory. The nematic-isotropic (paranematic) phase transition temperature of the gel...

Ozonolyses of 3-Benzoyloxy- and 3-Trimethylsiloxy-Substituted 2-Phenylindenes in Methanol: Substituent-Dependent Modes of Capture of the Carbonyl Oxide Intermediates by the Solvent.

The Journal of organic chemistry

McCullough KJ, Takeuchi R, Masuyama A, Nojima M.
PMID: 11674315
J Org Chem. 1999 Mar 19;64(6):2137-2139. doi: 10.1021/jo982014h.

No abstract available.

An in Vitro System of Indole-3-Acetic Acid Formation from Tryptophan in Maize (Zea mays) Coleoptile Extracts.

Plant physiology

Koshiba T, Matsuyama H.
PMID: 12231908
Plant Physiol. 1993 Aug;102(4):1319-1324. doi: 10.1104/pp.102.4.1319.

The formation of a product from tryptophan that had the same retention time as that of authentic indole-3-acetic acid (IAA) on high performance liquid chromatography was detected in crude extracts of maize (Zea mays) coleoptiles. The product was identified...

Non-uniformities in polymer/liquid crystal mixtures II. Nematic nucleation.

The European physical journal. E, Soft matter

Matsuyama A, Evans RM, Cates ME.
PMID: 15010934
Eur Phys J E Soft Matter. 2002 Sep;9(1):89-95. doi: 10.1140/epje/i2002-10062-8.

We theoretically model the nucleation of nematic droplets during phase ordering in mixtures of a flexible polymer and a low-molecular-weight liquid crystal. By appealing to classical nucleation theory (CNT), we calculate the energy barrier to nucleation and the size...

New approaches to the synthesis of spiro-peroxylactones.

Organic & biomolecular chemistry

McCullough KJ, Tokuhara H, Masuyama A, Nojima M.
PMID: 12926282
Org Biomol Chem. 2003 May 07;1(9):1522-7. doi: 10.1039/b300342f.

Ozonolysis of (alkenyldioxy)cyclododecyl hydroperoxides in trifluoroethanol gave a separable mixture of the corresponding alpha-hydroperoxy- and alpha-hydroxy-substituted spiro-tetraoxacycloalkanes with ring sizes in the range 7-12. Dehydration of the hydroperoxides or oxidation of the hydroxy-compounds afforded the corresponding peroxylactones. The solid-state...

True polar wander on Europa from global-scale small-circle depressions.

Nature

Schenk P, Matsuyama I, Nimmo F.
PMID: 18480819
Nature. 2008 May 15;453(7193):368-71. doi: 10.1038/nature06911.

The tectonic patterns and stress history of Europa are exceedingly complex and many large-scale features remain unexplained. True polar wander, involving reorientation of Europa's floating outer ice shell about the tidal axis with Jupiter, has been proposed as a...

Pulse-shaping of gain-switched pulse from multimode laser diode using fiber Sagnac interferometer.

Optics express

Wada K, Takamatsu S, Watanebe H, Matsuyama T, Horinaka H.
PMID: 19030074
Opt Express. 2008 Nov 24;16(24):19872-81. doi: 10.1364/oe.16.019872.

We propose a pulse-tail elimination and pulse shortening method using an optical interferometer, which is effective for picosecond chirped pulses from gain-switched multimode laser diodes. In a numerical simulation, when the delay distance between a chirped pulse and its...

Precise measurement of the self-diffusion coefficient for poly(ethylene glycol) in aqueous solution using uniform oligomers.

The Journal of chemical physics

Shimada K, Kato H, Saito T, Matsuyama S, Kinugasa S.
PMID: 16035823
J Chem Phys. 2005 Jun 22;122(24):244914. doi: 10.1063/1.1948378.

Uniform poly(ethylene glycol) (PEG) oligomers, with a degree of polymerization n=1-40, were separated by preparative supercritical fluid chromatography from commercial monodispersed samples. Diffusion coefficients, D, for separated uniform PEG oligomers were measured in dilute solutions of deuterium oxide (D(2)O)...

Direct nitric oxide release from nipradilol in human coronary arterial smooth muscle cells observed with fluorescent NO probe and NO-electrode.

Pathophysiology : the official journal of the International Society for Pathophysiology

Ishida H, Hirota Y, Higashijima N, Ishiwata K, Chokoh G, Matsuyama S, Murakami E, Nakazawa H.
PMID: 15364117
Pathophysiology. 2004 Oct;11(2):77-80. doi: 10.1016/j.pathophys.2004.03.004.

BACKGROUND:: Nipradilol (3,4-dihydro-8-[2-hydroxy-3-isopropyl-amino]propoxy-3-nitroxy-2-H-1-benzopyran), a potent non-selective beta-adrenoceptor antagonist, has been shown to increase NO production. The mechanisms are up-regulation of nitric oxide synthase (NOS) and direct release of NO from nipradilol. The process of direct NO release from nipradilol...

Bounds to average interelectronic angles in Hartree-Fock theory of atoms.

The Journal of chemical physics

Koga T, Matsuyama H.
PMID: 15260754
J Chem Phys. 2004 Aug 01;121(5):2016-9. doi: 10.1063/1.1767518.

The average interelectronic is the expectation value of the angle thetaij (0 < or = thetaij < or = pi) subtended by the position vectors ri and rj of a pair of electrons i and j. In the Hartree-Fock...

Pleural cryptococcosis with idiopathic CD4 positive T-lymphocytopenia.

Internal medicine (Tokyo, Japan)

Kawabata T, Matsuyama W, Higashimoto I, Koreeda Y, Eiraku N, Kawabata M, Osame M.
PMID: 18827437
Intern Med. 2008;47(19):1765. doi: 10.2169/internalmedicine.47.r002. Epub 2008 Oct 01.

No abstract available.

Bilateral synchronous spindle cell, apocrine and scirrhous carcinoma breast cancer in a case or malignant lymphoma.

Breast cancer (Tokyo, Japan)

Ito K, Kurai M, Fujimori M, Hama Y, Shingu K, Kobayashi S, Yamagami O, Matsuyama I, Tsuchiya S, Amano J.
PMID: 18843558
Breast Cancer. 1998;5(4):411-6. doi: 10.1007/BF02967440.

An unusual case of synchronous bilateral breast cancer occurring during combination chemotherapy and radiation to the outside of the breast for malignant lymphoma is reported. Two histologically rare carcinomas, spindle cell carcinoma and apocrine carcinoma, were observed in this...

Showing 25 to 36 of 1050 entries