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Showing 1 to 12 of 235 entries
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Direct characterization of photoinduced lattice dynamics in BaFe2As2.

Nature communications

Gerber S, Kim KW, Zhang Y, Zhu D, Plonka N, Yi M, Dakovski GL, Leuenberger D, Kirchmann PS, Moore RG, Chollet M, Glownia JM, Feng Y, Lee JS, Mehta A, Kemper AF, Wolf T, Chuang YD, Hussain Z, Kao CC, Moritz B, Shen ZX, Devereaux TP, Lee WS.
PMID: 26051704
Nat Commun. 2015 Jun 08;6:7377. doi: 10.1038/ncomms8377.

Ultrafast light pulses can modify electronic properties of quantum materials by perturbing the underlying, intertwined degrees of freedom. In particular, iron-based superconductors exhibit a strong coupling among electronic nematic fluctuations, spins and the lattice, serving as a playground for...

Bandwidth and Electron Correlation-Tuned Superconductivity in Rb_{0.8}Fe_{2}(Se_{1-z}S_{z})_{2}.

Physical review letters

Yi M, Wang M, Kemper AF, Mo SK, Hussain Z, Bourret-Courchesne E, Lanzara A, Hashimoto M, Lu DH, Shen ZX, Birgeneau RJ.
PMID: 26722933
Phys Rev Lett. 2015 Dec 18;115(25):256403. doi: 10.1103/PhysRevLett.115.256403. Epub 2015 Dec 15.

We present a systematic angle-resolved photoemission spectroscopy study of the substitution dependence of the electronic structure of Rb_{0.8}Fe_{2}(Se_{1-z}S_{z})_{2} (z=0, 0.5, 1), where superconductivity is continuously suppressed into a metallic phase. Going from the nonsuperconducting Rb_{0.8}Fe_{2}S_{2} to superconducting Rb_{0.8}Fe_{2}Se_{2}, we...

Impact of methylphenidate formulation on treatment patterns and hospitalizations: a retrospective analysis.

Annals of general psychiatry

Kemner JE, Lage MJ.
PMID: 16606463
Ann Gen Psychiatry. 2006 Apr 10;5:5. doi: 10.1186/1744-859X-5-5.

BACKGROUND: While stimulant therapy has been shown to be effective in the treatment of attention-deficit/hyperactivity disorder (ADHD), there is less information concerning differences between alternative stimulant medications. The purpose of this study is to examine how different formulations of...

Theory of two-magnon Raman scattering in iron pnictides and chalcogenides.

Physical review letters

Chen CC, Jia CJ, Kemper AF, Singh RR, Devereaux TP.
PMID: 21405486
Phys Rev Lett. 2011 Feb 11;106(6):067002. doi: 10.1103/PhysRevLett.106.067002. Epub 2011 Feb 10.

Although the parent iron-based pnictides and chalcogenides are itinerant antiferromagnets, the use of local moment picture to understand their magnetic properties is still widespread. We study magnetic Raman scattering from a local moment perspective for various quantum spin models...

Changing concepts in the field of diabetes mellitus.

Rocky Mountain medical journal

KEMPER CF.
PMID: 18099404
Rocky Mt Med J. 1948 Dec;45(12):1092-5.

No abstract available.

Phase fluctuations and the absence of topological defects in a photo-excited charge-ordered nickelate.

Nature communications

Lee WS, Chuang YD, Moore RG, Zhu Y, Patthey L, Trigo M, Lu DH, Kirchmann PS, Krupin O, Yi M, Langner M, Huse N, Robinson JS, Chen Y, Zhou SY, Coslovich G, Huber B, Reis DA, Kaindl RA, Schoenlein RW, Doering D, Denes P, Schlotter WF, Turner JJ, Johnson SL, Först M, Sasagawa T, Kung YF, Sorini AP, Kemper AF, Moritz B, Devereaux TP, Lee DH, Shen ZX, Hussain Z.
PMID: 22588300
Nat Commun. 2012 May 15;3:838. doi: 10.1038/ncomms1837.

The dynamics of an order parameter's amplitude and phase determines the collective behaviour of novel states emerging in complex materials. Time- and momentum-resolved pump-probe spectroscopy, by virtue of measuring material properties at atomic and electronic time scales out of...

Diagnosis and treatment of microsporidial keratoconjunctivitis: literature review and case series.

Journal of ophthalmic inflammation and infection

Taju S, Tilahun Y, Ayalew M, Fikrie N, Schneider J, Kempen JH.
PMID: 21559864
J Ophthalmic Inflamm Infect. 2011 Sep;1(3):105-10. doi: 10.1007/s12348-011-0025-y. Epub 2011 May 11.

PURPOSE: The purpose of this study is to describe the clinical characteristics, microscopic findings, and treatment response to albendazole of microsporidial keratoconjunctivitis among immunocompromised individuals with HIV/AIDS.METHODS: This is a retrospective case series. Diagnosis of microsporidial keratoconjunctivitis was confirmed...

Doping dependent nonlinear Hall effect in SmFeAsO(1-x)F(x).

Journal of physics. Condensed matter : an Institute of Physics journal

Riggs SC, McDonald RD, Kemper JB, Stegen Z, Boebinger GS, Balakirev FF, Kohama Y, Migliori A, Chen H, Liu RH, Chen XH.
PMID: 21693981
J Phys Condens Matter. 2009 Oct 14;21(41):412201. doi: 10.1088/0953-8984/21/41/412201. Epub 2009 Sep 24.

We report the Hall resistivity, ρ(xy), of polycrystalline SmFeAsO(1-x)F(x) for four different fluorine concentrations from the onset of superconductivity through the collapse of the structural phase transition. For the two more highly doped samples, ρ(xy) is linear in magnetic...

Nonequilibrium electron and lattice dynamics of strongly correlated Bi.

Science advances

Konstantinova T, Rameau JD, Reid AH, Abdurazakov O, Wu L, Li R, Shen X, Gu G, Huang Y, Rettig L, Avigo I, Ligges M, Freericks JK, Kemper AF, Dürr HA, Bovensiepen U, Johnson PD, Wang X, Zhu Y.
PMID: 29719862
Sci Adv. 2018 Apr 27;4(4):eaap7427. doi: 10.1126/sciadv.aap7427. eCollection 2018 Apr.

The interplay between the electronic and lattice degrees of freedom in nonequilibrium states of strongly correlated systems has been debated for decades. Although progress has been made in establishing a hierarchy of electronic interactions with the use of time-resolved...

Ultrafast dynamics of vibrational symmetry breaking in a charge-ordered nickelate.

Science advances

Coslovich G, Kemper AF, Behl S, Huber B, Bechtel HA, Sasagawa T, Martin MC, Lanzara A, Kaindl RA.
PMID: 29202025
Sci Adv. 2017 Nov 24;3(11):e1600735. doi: 10.1126/sciadv.1600735. eCollection 2017 Nov.

The ability to probe symmetry-breaking transitions on their natural time scales is one of the key challenges in nonequilibrium physics. Stripe ordering represents an intriguing type of broken symmetry, where complex interactions result in atomic-scale lines of charge and...

Newborn Screening for Lysosomal Storage Diseases: A Concise Review of the Literature on Screening Methods, Therapeutic Possibilities and Regional Programs.

International journal of neonatal screening

Schielen PCJI, Kemper EA, Gelb MH.
PMID: 28730181
Int J Neonatal Screen. 2017 Jun;3(2). doi: 10.3390/ijns3020006. Epub 2017 Mar 29.

Newborn screening for lysosomal storage diseases (LSDs) is increasingly being considered as an option. The development of analytical screening methods, of second-tier methods, and of therapeutic possibilities, are paving the way for routine screening for LSDs in the coming...

Physician perspectives on education, training, and implementation of complementary and alternative medicine.

Advances in medical education and practice

Patel SJ, Kemper KJ, Kitzmiller JP.
PMID: 28794663
Adv Med Educ Pract. 2017 Jul 25;8:499-503. doi: 10.2147/AMEP.S138572. eCollection 2017.

Over recent decades, the demand for complementary and alternative medicine (CAM) has continued to rise in the US. Like the practice of traditional Western medicine, CAM is associated with not only significant health benefits but also significant risks. Unlike...

Showing 1 to 12 of 235 entries