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Showing 1 to 12 of 181 entries
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The chemical foundations of nitroalkene fatty acid signaling through addition reactions with thiols.

Nitric oxide : biology and chemistry

Turell L, Steglich M, Alvarez B.
PMID: 29578058
Nitric Oxide. 2018 Mar 22; doi: 10.1016/j.niox.2018.03.014. Epub 2018 Mar 22.

Nitroalkene fatty acids can be formed in vivo and administered exogenously. They exert pleiotropic signaling actions with cytoprotective and antiinflammatory effects. The presence of the potent electron withdrawing nitro group confers electrophilicity to the adjacent β-carbon. Thiols (precisely, thiolates)...

CoVennTree: a new method for the comparative analysis of large datasets.

Frontiers in genetics

Lott SC, Voß B, Hess WR, Steglich C.
PMID: 25750651
Front Genet. 2015 Feb 20;6:43. doi: 10.3389/fgene.2015.00043. eCollection 2015.

The visualization of massive datasets, such as those resulting from comparative metatranscriptome analyses or the analysis of microbial population structures using ribosomal RNA sequences, is a challenging task. We developed a new method called CoVennTree (Comparative weighted Venn Tree)...

Complete Genome Sequence of a CTX-M-15-Producing Klebsiella pneumoniae Outbreak Strain from Multilocus Sequence Type 514.

Genome announcements

Becker L, Bunk B, Eller C, Steglich M, Pfeifer Y, Werner G, Nübel U.
PMID: 26159529
Genome Announc. 2015 Jul 09;3(4). doi: 10.1128/genomeA.00742-15.

We report here the genome sequence of a multidrug-resistant Klebsiella pneumoniae strain, which caused an outbreak in a neonatal ward in 2011. The genome consists of a single chromosome (5,278 kb) and three plasmids (362 kb, 5 kb, and...

Pressure dependence of the Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5.

Physical review letters

Miclea CF, Nicklas M, Parker D, Maki K, Sarrao JL, Thompson JD, Sparn G, Steglich F.
PMID: 16605851
Phys Rev Lett. 2006 Mar 24;96(11):117001. doi: 10.1103/PhysRevLett.96.117001. Epub 2006 Mar 20.

Pressure studies of the thermodynamics of CeCoIn5 under magnetic fields H parallel to c and H parallel to ab have been made up to P = 1.34 GPa. We recorded the signature of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state for all...

Pronounced enhancement of the lower critical field and critical current deep in the superconducting state of PrOs4Sb12.

Physical review letters

Cichorek T, Mota AC, Steglich F, Frederick NA, Yuhasz WM, Maple MB.
PMID: 15783506
Phys Rev Lett. 2005 Mar 18;94(10):107002. doi: 10.1103/PhysRevLett.94.107002. Epub 2005 Mar 16.

We have observed an unexpected enhancement of the lower critical field H(c1)(T) and the critical current I(c)(T) deep in the superconducting state below T approximately 0.6 K (T/T(c) approximately 0.3) in the filled skutterudite heavy fermion superconductor PrOs(4)Sb(12). From...

Probing the quantum critical behavior of CeCoIn5 via Hall effect measurements.

Physical review letters

Singh S, Capan C, Nicklas M, Rams M, Gladun A, Lee H, Ditusa JF, Fisk Z, Steglich F, Wirth S.
PMID: 17358884
Phys Rev Lett. 2007 Feb 02;98(5):057001. doi: 10.1103/PhysRevLett.98.057001. Epub 2007 Jan 30.

We present highly sensitive Hall effect measurements of the heavy fermion compound CeCoIn5 down to temperatures of 55 mK. A pronounced dip in the differential Hall coefficient | partial differential rho(xy)/ partial differential H| at low temperature and above...

Determination of gap symmetry from angle-dependent H(c2) measurements on CeCu₂Si₂.

Physical review letters

Vieyra HA, Oeschler N, Seiro S, Jeevan HS, Geibel C, Parker D, Steglich F.
PMID: 21668257
Phys Rev Lett. 2011 May 20;106(20):207001. doi: 10.1103/PhysRevLett.106.207001. Epub 2011 May 20.

The tetragonal heavy-fermion compound CeCu₂Si₂ exhibits a superconducting ground state (S type, T(c) = 0.67 K) close to a magnetic instability. Here, we present angle-resolved resistivity measurements of the upper critical field H(c2). In-plane rotation of S-type CeCu₂Si₂ single...

Magnetism and superconductivity driven by identical 4f states in a heavy-fermion metal.

Proceedings of the National Academy of Sciences of the United States of America

Nair S, Stockert O, Witte U, Nicklas M, Schedler R, Kiefer K, Thompson JD, Bianchi AD, Fisk Z, Wirth S, Steglich F.
PMID: 20457945
Proc Natl Acad Sci U S A. 2010 May 25;107(21):9537-40. doi: 10.1073/pnas.1004958107. Epub 2010 May 10.

The apparently inimical relationship between magnetism and superconductivity has come under increasing scrutiny in a wide range of material classes, where the free energy landscape conspires to bring them in close proximity to each other. Particularly enigmatic is the...

Optical pseudogap from iron states in filled skutterudites AFe4Sb12 (A=Yb, Ca, Ba).

Physical review letters

Sichelschmidt J, Voevodin V, Im HJ, Kimura S, Rosner H, Leithe-Jasper A, Schnelle W, Burkhardt U, Mydosh JA, Grin Y, Steglich F.
PMID: 16486770
Phys Rev Lett. 2006 Jan 27;96(3):037406. doi: 10.1103/PhysRevLett.96.037406. Epub 2006 Jan 27.

Optical investigations are presented of the filled skutterudites AFe4Sb12 with divalent cations A=Yb, Ca, Ba. For each of these compounds a very similar pseudogap structure in the optical conductivity develops in the far-infrared spectral region at temperatures below 90...

Non-Fermi liquid states in the pressurized CeCu2(Si1-xGex)2 system: two critical points.

Physical review letters

Yuan HQ, Grosche FM, Deppe M, Sparn G, Geibel C, Steglich F.
PMID: 16486879
Phys Rev Lett. 2006 Feb 03;96(4):047008. doi: 10.1103/PhysRevLett.96.047008. Epub 2006 Feb 03.

In the archetypal strongly correlated electron superconductor CeCu2Si2 and its Ge-substituted alloys CeCu2(Si1-xGex)2 two quantum phase transitions--one magnetic and one of so far unknown origin-can be crossed as a function of pressure. We examine the associated anomalous normal state...

Synthesis, crystal structure, and physical properties of the type-I clathrate Ba(8-δ)Ni(x)□(y)Si(46-x-y).

Inorganic chemistry

Aydemir U, Candolfi C, Ormeci A, Borrmann H, Burkhardt U, Oztan Y, Oeschler N, Baitinger M, Steglich F, Grin Y.
PMID: 22455546
Inorg Chem. 2012 Apr 16;51(8):4730-41. doi: 10.1021/ic2027626. Epub 2012 Mar 28.

Type-I clathrate phase Ba(8)Ni(x)□(y)Si(46-x-y) (□ = vacancy) was obtained from the elements at 1000 °C with the homogeneity range 2.4 ≤ x ≤ 3.8 and 0 ≤ y ≤ 0.9. In addition, samples with low Ni content (x =...

Bose-Einstein condensation of magnons in Cs2CuCl4.

Physical review letters

Radu T, Wilhelm H, Yushankhai V, Kovrizhin D, Coldea R, Tylczynski Z, Lühmann T, Steglich F.
PMID: 16197102
Phys Rev Lett. 2005 Sep 16;95(12):127202. doi: 10.1103/PhysRevLett.95.127202. Epub 2005 Sep 14.

We report on results of specific heat measurements on single crystals of the frustrated quasi-2D spin-1/2 antiferromagnet Cs2CuCl4 (T(N)=0.595 K) in external magnetic fields B30 mK. Decreasing B from high fields leads to the closure of the field-induced gap...

Showing 1 to 12 of 181 entries