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Showing 13 to 24 of 499 entries
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A double-decker silver(I) coordination polymer of 1-methylpyrene with columnar aromatic stacks. Effect of substituting groups on structure of silver(I) complexes with polycyclic aromatic hydrocarbons.

Inorganic chemistry

Munakata M, Zhong JC, Kuroda-Sowa T, Maekawa M, Suenaga Y, Kasahara M, Konaka H.
PMID: 11754295
Inorg Chem. 2001 Dec 31;40(27):7087-90. doi: 10.1021/ic010668u.

No abstract available.

Introduction of functionalized C1, C2, and C3 units to imines through the dimethylzinc-air-initiated radical addition.

The Journal of organic chemistry

Yamada K, Yamamoto Y, Maekawa M, Tomioka K.
PMID: 14987007
J Org Chem. 2004 Mar 05;69(5):1531-4. doi: 10.1021/jo035496s.

Introduction of functionalized C1, C2, and C3 units to imines was achieved by using the dimethylzinc-air-initiated alpha-alkoxyalkyl radical addition as a key reaction. The addition to a C[double bond]N double bond chemoselectively occurred in the presence of a C[double...

Icosaniobate: a new member of the isoniobate family.

Inorganic chemistry

Maekawa M, Ozawa Y, Yagasaki A.
PMID: 17112246
Inorg Chem. 2006 Nov 27;45(24):9608-9. doi: 10.1021/ic0601788.

Icosaniobate [Nb20O54]8- was synthesized by reacting [H4Nb6O19]4- with NO in tetrahydrofuran or MeNO2. A single-crystal X-ray diffraction study of its n-tetrabutylammonium salt [a = 17.7284(18) A, b = 33.542(3) A, c = 34.316(2) A, Z = 4, and space...

Quantitative flow visualization of fluidized-bed heat exchanger by neutron radiography.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Ozawa M, Umekawa H, Furui S, Hayashi K, Takenaka N.
PMID: 15246422
Appl Radiat Isot. 2004 Oct;61(4):715-24. doi: 10.1016/j.apradiso.2004.03.099.

Quantitative flow visualization of a gas-solid fluidized-bed installed vertical tube-bank has been successfully conducted using neutron radiography and image processing technique. The quantitative data of void fraction distribution as well as the fluctuation data are presented. The time-averaged void...

Syntheses, structures, and properties of intercalation compounds of silver(I) complex with [2.2]paracyclophane.

Inorganic chemistry

Munakata M, Liu SQ, Konaka H, Kuroda-Sowa T, Suenaga Y, Maekawa M, Nakagawa H, Yamazaki Y.
PMID: 14731025
Inorg Chem. 2004 Jan 26;43(2):633-41. doi: 10.1021/ic0302433.

Reaction of [2.2]paracyclophane (pcp) with silver(I) trifluoroacetate (AgCF(3)CO(2)) and silver(I) pentafluoroproprionate (AgC(2)F(5)CO(2)) has led to isolation of three novel intercalation polymers: [Ag(4)(pcp)(CF(3)CO(2))(4)](C(6)H(6)) (1), [Ag(4)(pcp)(CF(3)CO(2))(4)](C(6)H(3)Me(3)) (2), and [Ag(4)(pcp)(C(2)F(5)CO(2))(4)](pcp) (3). Structure studies using single crystal X-ray diffraction have shown that all...

Spin Seebeck insulator.

Nature materials

Uchida K, Xiao J, Adachi H, Ohe J, Takahashi S, Ieda J, Ota T, Kajiwara Y, Umezawa H, Kawai H, Bauer GE, Maekawa S, Saitoh E.
PMID: 20871606
Nat Mater. 2010 Nov;9(11):894-7. doi: 10.1038/nmat2856. Epub 2010 Sep 26.

Thermoelectric generation is an essential function in future energy-saving technologies. However, it has so far been an exclusive feature of electric conductors, a situation which limits its application; conduction electrons are often problematic in the thermal design of devices....

Organic dye materials for optical recording media.

Applied optics

Oba H, Abe M, Umehara M, Sato T, Ueda Y, Kunikane M.
PMID: 18235738
Appl Opt. 1986 Nov 15;25(22):4023. doi: 10.1364/ao.25.004023.

No abstract available.

Crystal structure and carrier transport properties of a new 3D mixed-valence Cu(I)-Cu(II) coordination polymer including pyrrolidine dithiocarbamate ligand.

Dalton transactions (Cambridge, England : 2003)

Okubo T, Tanaka N, Kim KH, Anma H, Seki S, Saeki A, Maekawa M, Kuroda-Sowa T.
PMID: 21180735
Dalton Trans. 2011 Mar 14;40(10):2218-24. doi: 10.1039/c0dt01065k. Epub 2010 Dec 22.

A novel mixed-valence Cu(i)-Cu(ii) coordination polymer having an infinite three-dimensional (3D) structure, {[Cu(I)(4)Cu(II)(2)Br(4)(Pyr-dtc)(4)]·CHCl(3)}(n) (1) (Pyr-dtc(-) = pyrrolidine dithiocarbamate), has been prepared and structurally characterized via X-ray diffraction. This complex consists of 1D Cu(i)-Br chains and bridging mononuclear copper(ii) units...

{6,6'-Dimeth-oxy-2,2'-[naphthalene-2,3-diylbis(nitrilo-methyl-idyne)]diphenolato}thio-cyanato-cobalt(III) diethyl ether dichloro-methane solvate.

Acta crystallographica. Section E, Structure reports online

Yu Z, Kuroda-Sowa T, Nabei A, Maekawa M, Okubo T.
PMID: 21582048
Acta Crystallogr Sect E Struct Rep Online. 2009 Feb 06;65:m257-8. doi: 10.1107/S1600536809000841.

In the title complex, [Co(C(26)H(20)N(2)O(4))(NCS)]·C(4)H(10)O·CH(2)Cl(2), the penta-coordinated Co(III) atom exhibits a distorted square-pyramidal geometry with an N,N',O,O' tetra-dentate Schiff base ligand in the basal plane and one thio-cyanate ligand at the apical site. The diethyl ether mol-ecule is located...

The Cytoplasm-to-Vacuole Targeting Pathway: A Historical Perspective.

International journal of cell biology

Umekawa M, Klionsky DJ.
PMID: 22481942
Int J Cell Biol. 2012;2012:142634. doi: 10.1155/2012/142634. Epub 2012 Feb 20.

From today's perspective, it is obvious that macroautophagy (hereafter autophagy) is an important pathway that is connected to a range of developmental and physiological processes. This viewpoint, however, is relatively recent, coinciding with the molecular identification of autophagy-related (Atg)...

Induced pluripotent stem cells as a next-generation biomedical interface.

Laboratory investigation; a journal of technical methods and pathology

Hankowski KE, Hamazaki T, Umezawa A, Terada N.
PMID: 21555998
Lab Invest. 2011 Jul;91(7):972-7. doi: 10.1038/labinvest.2011.85. Epub 2011 May 09.

Recent advances in DNA sequencing technologies and subsequent progress in genome-wide association study (GWAS) are rapidly changing the landscape of human diseases. Our knowledge on disease-gene linkage has been exponentially growing, and soon we will obtain complete maps of...

Allogeneic amniotic membrane-derived mesenchymal stromal cell transplantation in a porcine model of chronic myocardial ischemia.

Journal of stem cells & regenerative medicine

Kimura M, Toyoda M, Gojo S, Itakura Y, Kami D, Miyoshi S, Kyo S, Ono M, Umezawa A.
PMID: 24693195
J Stem Cells Regen Med. 2012 Nov 26;8(3):171-80. eCollection 2012.

Introduction. Amniotic membrane contains a multipotential stem cell population and is expected to possess the machinery to regulate immunological reactions. We investigated the safety and efficacy of allogeneic amniotic membrane-derived mesenchymal stromal cell (AMSC) transplantation in a porcine model...

Showing 13 to 24 of 499 entries