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Items: 1 to 50 of 87

1.

Rearrangement of Uncorrelated Valence Bonds Evidenced by Low-Energy Spin Excitations in YbMgGaO_{4}.

Li Y, Bachus S, Liu B, Radelytskyi I, Bertin A, Schneidewind A, Tokiwa Y, Tsirlin AA, Gegenwart P.

Phys Rev Lett. 2019 Apr 5;122(13):137201. doi: 10.1103/PhysRevLett.122.137201.

PMID:
31012603
2.

Tuning the Pairing Interaction in a d-Wave Superconductor by Paramagnons Injected through Interfaces.

Naritsuka M, Rosa PFS, Luo Y, Kasahara Y, Tokiwa Y, Ishii T, Miyake S, Terashima T, Shibauchi T, Ronning F, Thompson JD, Matsuda Y.

Phys Rev Lett. 2018 May 4;120(18):187002. doi: 10.1103/PhysRevLett.120.187002.

PMID:
29775349
3.

Effect of Surface Freezing on Stability of Oil-in-Water Emulsions.

Tokiwa Y, Sakamoto H, Takiue T, Aratono M, Matsubara H, Bain CD.

Langmuir. 2018 May 29;34(21):6205-6209. doi: 10.1021/acs.langmuir.8b01088. Epub 2018 May 15.

PMID:
29742340
4.

Abrupt change of the superconducting gap structure at the nematic critical point in FeSe1-xSx.

Sato Y, Kasahara S, Taniguchi T, Xing X, Kasahara Y, Tokiwa Y, Yamakawa Y, Kontani H, Shibauchi T, Matsuda Y.

Proc Natl Acad Sci U S A. 2018 Feb 6;115(6):1227-1231. doi: 10.1073/pnas.1717331115. Epub 2018 Jan 23.

5.

Direct Production of (R)-3-Hydroxybutyric Acid of High Optical Purity by Halomonas sp. OITC1261 Under Aerobic conditions.

Yokaryo H, Teruya M, Hanashiro R, Goda M, Tokiwa Y.

Biotechnol J. 2018 Feb;13(2). doi: 10.1002/biot.201700343. Epub 2017 Oct 30.

PMID:
28994221
6.

Full-Gap Superconductivity Robust against Disorder in Heavy-Fermion CeCu_{2}Si_{2}.

Takenaka T, Mizukami Y, Wilcox JA, Konczykowski M, Seiro S, Geibel C, Tokiwa Y, Kasahara Y, Putzke C, Matsuda Y, Carrington A, Shibauchi T.

Phys Rev Lett. 2017 Aug 18;119(7):077001. doi: 10.1103/PhysRevLett.119.077001. Epub 2017 Aug 18.

PMID:
28949698
7.

Fully gapped superconductivity with no sign change in the prototypical heavy-fermion CeCu2Si2.

Yamashita T, Takenaka T, Tokiwa Y, Wilcox JA, Mizukami Y, Terazawa D, Kasahara Y, Kittaka S, Sakakibara T, Konczykowski M, Seiro S, Jeevan HS, Geibel C, Putzke C, Onishi T, Ikeda H, Carrington A, Shibauchi T, Matsuda Y.

Sci Adv. 2017 Jun 23;3(6):e1601667. doi: 10.1126/sciadv.1601667. eCollection 2017 Jun.

8.

Super-heavy electron material as metallic refrigerant for adiabatic demagnetization cooling.

Tokiwa Y, Piening B, Jeevan HS, Bud'ko SL, Canfield PC, Gegenwart P.

Sci Adv. 2016 Sep 9;2(9):e1600835. doi: 10.1126/sciadv.1600835. eCollection 2016 Sep.

9.

Multiple Metamagnetic Quantum Criticality in Sr_{3}Ru_{2}O_{7}.

Tokiwa Y, Mchalwat M, Perry RS, Gegenwart P.

Phys Rev Lett. 2016 Jun 3;116(22):226402. doi: 10.1103/PhysRevLett.116.226402. Epub 2016 May 31.

PMID:
27314732
10.

Tuning the Magnetic Quantum Criticality of Artificial Kondo Superlattices CeRhIn_{5}/YbRhIn_{5}.

Ishii T, Toda R, Hanaoka Y, Tokiwa Y, Shimozawa M, Kasahara Y, Endo R, Terashima T, Nevidomskyy AH, Shibauchi T, Matsuda Y.

Phys Rev Lett. 2016 May 20;116(20):206401. doi: 10.1103/PhysRevLett.116.206401. Epub 2016 May 20.

PMID:
27258878
11.

Possible observation of highly itinerant quantum magnetic monopoles in the frustrated pyrochlore Yb2Ti2O7.

Tokiwa Y, Yamashita T, Udagawa M, Kittaka S, Sakakibara T, Terazawa D, Shimoyama Y, Terashima T, Yasui Y, Shibauchi T, Matsuda Y.

Nat Commun. 2016 Feb 25;7:10807. doi: 10.1038/ncomms10807.

12.

Characteristic signatures of quantum criticality driven by geometrical frustration.

Tokiwa Y, Stingl C, Kim MS, Takabatake T, Gegenwart P.

Sci Adv. 2015 Apr 24;1(3):e1500001. doi: 10.1126/sciadv.1500001. eCollection 2015 Apr.

13.

Effect of alkane chain length and counterion on the freezing transition of cationic surfactant adsorbed film at alkane mixture - water interfaces.

Tokiwa Y, Sakamoto H, Takiue T, Aratono M, Matsubara H.

J Phys Chem B. 2015 May 21;119(20):6235-41. doi: 10.1021/acs.jpcb.5b02448. Epub 2015 May 12.

PMID:
25932500
14.

Zero-field quantum critical point in CeCoIn5.

Tokiwa Y, Bauer ED, Gegenwart P.

Phys Rev Lett. 2013 Sep 6;111(10):107003. Epub 2013 Sep 4.

PMID:
25166697
15.

Quantum criticality in a metallic spin liquid.

Tokiwa Y, Ishikawa JJ, Nakatsuji S, Gegenwart P.

Nat Mater. 2014 Apr;13(4):356-9.

PMID:
24651428
16.

Isolation of alkaliphilic bacteria for production of high optically pure L-(+)-lactic acid.

Yokaryo H, Tokiwa Y.

J Gen Appl Microbiol. 2014;60(6):270-5. doi: 10.2323/jgam.60.270.

17.

Quantum bicriticality in the heavy-fermion metamagnet YbAgGe.

Tokiwa Y, Garst M, Gegenwart P, Bud'ko SL, Canfield PC.

Phys Rev Lett. 2013 Sep 13;111(11):116401. Epub 2013 Sep 9.

PMID:
24074108
18.

Anomalous reduction of the Lorenz ratio at the quantum critical point in YbAgGe.

Dong JK, Tokiwa Y, Bud'ko SL, Canfield PC, Gegenwart P.

Phys Rev Lett. 2013 Apr 26;110(17):176402. Epub 2013 Apr 23.

PMID:
23679749
19.

Quasiparticle entropy in the high-field superconducting phase of CeCoIn(5).

Tokiwa Y, Bauer ED, Gegenwart P.

Phys Rev Lett. 2012 Sep 14;109(11):116402. Epub 2012 Sep 11.

PMID:
23005654
20.

Efficient production of D-(-)-lactic acid from broken rice by Lactobacillus delbrueckii using Ca(OH)2 as a neutralizing agent.

Nakano S, Ugwu CU, Tokiwa Y.

Bioresour Technol. 2012 Jan;104:791-4. doi: 10.1016/j.biortech.2011.10.017. Epub 2011 Oct 28.

PMID:
22093977
21.

Production of (R)-3-hydroxybutyric acid by fermentation and bioconversion processes with Azohydromonas lata.

Ugwu CU, Tokiwa Y, Ichiba T.

Bioresour Technol. 2011 Jun;102(12):6766-8. doi: 10.1016/j.biortech.2011.03.073. Epub 2011 Mar 27.

PMID:
21507620
22.

Superconductivity versus quantum criticality: what can we learn from heavy fermions?

Steglich F, Arndt J, Friedemann S, Krellner C, Tokiwa Y, Westerkamp T, Brando M, Gegenwart P, Geibel C, Wirth S, Stockert O.

J Phys Condens Matter. 2010 Apr 28;22(16):164202. doi: 10.1088/0953-8984/22/16/164202. Epub 2010 Mar 30.

PMID:
21386408
23.

Fermentative production of L: -(+)-lactic acid by an alkaliphilic marine microorganism.

Calabia BP, Tokiwa Y, Aiba S.

Biotechnol Lett. 2011 Jul;33(7):1429-33. doi: 10.1007/s10529-011-0573-0. Epub 2011 Mar 3.

PMID:
21369906
24.

High-resolution alternating-field technique to determine the magnetocaloric effect of metals down to very low temperatures.

Tokiwa Y, Gegenwart P.

Rev Sci Instrum. 2011 Jan;82(1):013905. doi: 10.1063/1.3529433.

PMID:
21280843
25.

Biodegradability of plastics.

Tokiwa Y, Calabia BP, Ugwu CU, Aiba S.

Int J Mol Sci. 2009 Aug 26;10(9):3722-42. doi: 10.3390/ijms10093722. Review.

26.

Low-temperature magnetothermal transport investigation of a Ni-based superconductor BaNi2As2: evidence for fully gapped superconductivity.

Kurita N, Ronning F, Tokiwa Y, Bauer ED, Subedi A, Singh DJ, Thompson JD, Movshovich R.

Phys Rev Lett. 2009 Apr 10;102(14):147004. Epub 2009 Apr 10.

PMID:
19392475
27.

Divergence of the magnetic Gr√ľneisen ratio at the field-induced quantum critical point in YbRh2Si2.

Tokiwa Y, Radu T, Geibel C, Steglich F, Gegenwart P.

Phys Rev Lett. 2009 Feb 13;102(6):066401. Epub 2009 Feb 10.

PMID:
19257612
28.

Isotropic quantum scattering and unconventional superconductivity.

Park T, Sidorov VA, Ronning F, Zhu JX, Tokiwa Y, Lee H, Bauer ED, Movshovich R, Sarrao JL, Thompson JD.

Nature. 2008 Nov 20;456(7220):366-8. doi: 10.1038/nature07431.

PMID:
19020616
29.

Anisotropic effect of Cd and Hg doping on the Pauli limited superconductor CeCoIn5.

Tokiwa Y, Movshovich R, Ronning F, Bauer ED, Papin P, Bianchi AD, Rauscher JF, Kauzlarich SM, Fisk Z.

Phys Rev Lett. 2008 Jul 18;101(3):037001. Epub 2008 Jul 16.

30.

Application of bipolar electrodialysis on recovery of free lactic acid after simultaneous saccharification and fermentation of cassava starch.

Timbuntam W, Sriroth K, Piyachomkwan K, Tokiwa Y.

Biotechnol Lett. 2008 Oct;30(10):1747-52. doi: 10.1007/s10529-008-9771-9. Epub 2008 Jun 21.

PMID:
18568401
31.

UV mutagenesis of Cupriavidus necator for extracellular production of (R)-3-hydroxybutyric acid.

Ugwu CU, Tokiwa Y, Aoyagi H, Uchiyama H, Tanaka H.

J Appl Microbiol. 2008 Jul;105(1):236-42. doi: 10.1111/j.1365-2672.2008.03774.x. Epub 2008 Apr 9.

32.

Alkalibacterium indicireducens sp. nov., an obligate alkaliphile that reduces indigo dye.

Yumoto I, Hirota K, Nodasaka Y, Tokiwa Y, Nakajima K.

Int J Syst Evol Microbiol. 2008 Apr;58(Pt 4):901-5. doi: 10.1099/ijs.0.64995-0.

PMID:
18398191
33.

Biotechnological production of (R)-3-hydroxybutyric acid monomer.

Tokiwa Y, Ugwu CU.

J Biotechnol. 2007 Nov 1;132(3):264-72. Epub 2007 Apr 22. Review.

PMID:
17543411
34.

Production of D-lactic acid from sugarcane molasses, sugarcane juice and sugar beet juice by Lactobacillus delbrueckii.

Calabia BP, Tokiwa Y.

Biotechnol Lett. 2007 Sep;29(9):1329-32. Epub 2007 May 31.

PMID:
17541505
35.

Enzymatic synthesis of arbutin undecylenic acid ester and its inhibitory effect on melanin synthesis.

Tokiwa Y, Kitagawa M, Raku T, Yanagitani S, Yoshino K.

Bioorg Med Chem Lett. 2007 Jun 1;17(11):3105-8. Epub 2007 Mar 16.

PMID:
17418566
36.

Multiple energy scales at a quantum critical point.

Gegenwart P, Westerkamp T, Krellner C, Tokiwa Y, Paschen S, Geibel C, Steglich F, Abrahams E, Si Q.

Science. 2007 Feb 16;315(5814):969-71.

37.

Enzymatic synthesis of arbutin undecylenic acid ester and its inhibitory effect on mushroom tyrosinase.

Tokiwa Y, Kitagawa M, Raku T.

Biotechnol Lett. 2007 Mar;29(3):481-6. Epub 2006 Dec 29.

PMID:
17195058
38.

Biodegradability and biodegradation of poly(lactide).

Tokiwa Y, Calabia BP.

Appl Microbiol Biotechnol. 2006 Sep;72(2):244-51. Epub 2006 Jul 6. Review.

PMID:
16823551
39.

Lactic acid production from sugar-cane juice by a newly isolated Lactobacillus sp.

Timbuntam W, Sriroth K, Tokiwa Y.

Biotechnol Lett. 2006 Jun;28(11):811-4. Epub 2006 May 18.

PMID:
16786246
40.

A novel PHB depolymerase from a thermophilic Streptomyces sp.

Calabia BP, Tokiwa Y.

Biotechnol Lett. 2006 Mar;28(6):383-8.

PMID:
16614903
41.

Production of poly(L-lactide)-degrading enzyme by Amycolatopsis orientalis for biological recycling of poly(L-lactide).

Jarerat A, Tokiwa Y, Tanaka H.

Appl Microbiol Biotechnol. 2006 Oct;72(4):726-31. Epub 2006 Feb 14.

PMID:
16477443
42.

Colonization and disintegration of tire rubber by a colonial mutant of Nocardia.

Tsuchii A, Tokiwa Y.

J Biosci Bioeng. 1999;87(4):542-4.

PMID:
16232513
43.

Field-induced suppression of the heavy-fermion state in YbRh2Si2.

Tokiwa Y, Gegenwart P, Radu T, Ferstl J, Sparn G, Geibel C, Steglich F.

Phys Rev Lett. 2005 Jun 10;94(22):226402. Epub 2005 Jun 6.

PMID:
16090416
44.

Hydrolysis of polyesters by serine proteases.

Lim HA, Raku T, Tokiwa Y.

Biotechnol Lett. 2005 Apr;27(7):459-64.

PMID:
15928850
45.

Ferromagnetic quantum critical fluctuations in YbRh2(Si0.95Ge0.05)2.

Gegenwart P, Custers J, Tokiwa Y, Geibel C, Steglich F.

Phys Rev Lett. 2005 Feb 25;94(7):076402. Epub 2005 Feb 23.

PMID:
15783833
46.

Enzymatic transesterification of purine nucleoside having a low solubility in organic medium.

Fan H, Kitagawa M, Raku T, Tokiwa Y.

Biotechnol Lett. 2004 Aug;26(16):1261-4.

PMID:
15483383
47.

A new method for the evaluation of biodegradable plastic using coated cellulose paper.

Lim HA, Raku T, Tokiwa Y.

Macromol Biosci. 2004 Sep 16;4(9):875-81.

PMID:
15468296
48.

Degradation of microbial polyesters.

Tokiwa Y, Calabia BP.

Biotechnol Lett. 2004 Aug;26(15):1181-9. Review.

PMID:
15289671
49.

Biodegradation of poly(L-lactide).

Tokiwa Y, Jarerat A.

Biotechnol Lett. 2004 May;26(10):771-7. Review.

PMID:
15274245

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