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Showing 1 to 12 of 348 entries
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Local quantum criticality of an iron-pnictide tetrahedron.

Physical review letters

Ong TT, Coleman P.
PMID: 22463447
Phys Rev Lett. 2012 Mar 09;108(10):107201. doi: 10.1103/PhysRevLett.108.107201. Epub 2012 Mar 05.

Motivated by the close correlation between transition temperature (T(c)) and the tetrahedral bond angle of the As-Fe-As layer observed in the iron-based superconductors, we study the interplay between spin and orbital physics of an isolated iron-arsenide tetrahedron embedded in...

Evaluation of PTGS2 Expression, PIK3CA Mutation, Aspirin Use and Colon Cancer Survival in a Population-Based Cohort Study.

Clinical and translational gastroenterology

Gray RT, Cantwell MM, Coleman HG, Loughrey MB, Bankhead P, McQuaid S, O'Neill RF, Arthur K, Bingham V, McGready C, Gavin AT, Cardwell CR, Johnston BT, James JA, Hamilton PW, Salto-Tellez M, Murray LJ.
PMID: 28448072
Clin Transl Gastroenterol. 2017 Apr 27;8(4):e91. doi: 10.1038/ctg.2017.18.

OBJECTIVES: The association between aspirin use and improved survival after colorectal cancer diagnosis may be more pronounced in tumors that have PIK3CA mutations or high PTGS2 expression. However, the evidence of a difference in association by biomarker status lacks...

Kondo Breakdown and Quantum Oscillations in SmB_{6}.

Physical review letters

Erten O, Ghaemi P, Coleman P.
PMID: 26871347
Phys Rev Lett. 2016 Jan 29;116(4):046403. doi: 10.1103/PhysRevLett.116.046403. Epub 2016 Jan 29.

Recent quantum oscillation experiments on SmB_{6} pose a paradox, for while the angular dependence of the oscillation frequencies suggest a 3D bulk Fermi surface, SmB_{6} remains robustly insulating to very high magnetic fields. Moreover, a sudden low temperature upturn...

Optimal source placement for sound zone reproduction with first order reflections.

The Journal of the Acoustical Society of America

Olik M, Jackson PJ, Coleman P, Pedersen JA.
PMID: 25480057
J Acoust Soc Am. 2014 Dec;136(6):3085. doi: 10.1121/1.4898423.

The problem of delivering personal audio content to listeners sharing the same acoustic space has recently attracted attention. It has been shown that a perceptually acceptable level of acoustic separation between the listening zones is difficult to achieve with...

Concealed d-wave pairs in the s± condensate of iron-based superconductors.

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

Ong T, Coleman P, Schmalian J.
PMID: 27140626
Proc Natl Acad Sci U S A. 2016 May 17;113(20):5486-91. doi: 10.1073/pnas.1523064113. Epub 2016 May 02.

A central question in iron-based superconductivity is the mechanism by which the paired electrons minimize their strong mutual Coulomb repulsion. In most unconventional superconductors, Coulomb repulsion is minimized through the formation of higher angular momentum Cooper pairs, with Fermi...

Structure-Guided Rescaffolding of Selective Antagonists of BCL-XL.

ACS medicinal chemistry letters

Koehler MF, Bergeron P, Choo EF, Lau K, Ndubaku C, Dudley D, Gibbons P, Sleebs BE, Rye CS, Nikolakopoulos G, Bui C, Kulasegaram S, Kersten WJ, Smith BJ, Czabotar PE, Colman PM, Huang DC, Baell JB, Watson KG, Hasvold L, Tao ZF, Wang L, Souers AJ, Elmore SW, Flygare JA, Fairbrother WJ, Lessene G.
PMID: 24944740
ACS Med Chem Lett. 2014 Mar 21;5(6):662-7. doi: 10.1021/ml500030p. eCollection 2014 Jun 12.

Because of the promise of BCL-2 antagonists in combating chronic lymphocytic leukemia (CLL) and non-Hodgkin's lymphoma (NHL), interest in additional selective antagonists of antiapoptotic proteins has grown. Beginning with a series of selective, potent BCL-XL antagonists containing an undesirable...

Cubic topological Kondo insulators.

Physical review letters

Alexandrov V, Dzero M, Coleman P.
PMID: 24329462
Phys Rev Lett. 2013 Nov 27;111(22):226403. doi: 10.1103/PhysRevLett.111.226403. Epub 2013 Nov 27.

Current theories of Kondo insulators employ the interaction of conduction electrons with localized Kramers doublets originating from a tetragonal crystalline environment, yet all Kondo insulators are cubic. Here we develop a theory of cubic topological Kondo insulators involving the...

Comparative study of the methane production based on the chemical compositions of Mangifera Indica and Manihot Utilissima leaves.

SpringerPlus

Mambanzulua Ngoma P, Hiligsmann S, Sumbu Zola E, Culot M, Fievez T, Thonart P, Bolman LG.
PMID: 25825684
Springerplus. 2015 Feb 11;4:75. doi: 10.1186/s40064-015-0832-y. eCollection 2015.

Leaves of Mangifera Indica (MI, mango leaves) and Manihot Utilissima (MU, cassava leaves) are available in tropical regions and are the most accessible vegetal wastes of Kinshasa, capital of Democratic Republic of Congo. These wastes are not suitably managed...

Cyclopropenation of internal alkynylsilanes and diazoacetates catalyzed by copper(i) N-heterocyclic carbene complexes.

Organic & biomolecular chemistry

Thomas TJ, Merritt BA, Lemma BE, McKoy AM, Nguyen T, Swenson AK, Mills JL, Coleman MG.
PMID: 26739570
Org Biomol Chem. 2016 Feb 07;14(5):1742-7. doi: 10.1039/c5ob02259b.

Copper(i) N-heterocyclic carbene (CuNHC) complexes are more catalytically active than traditional transition metal salts for the cyclopropenation of internal alkynylsilanes and diazoacetate compounds. A series of 1,2,3-trisubstituted and 1,2,3,3-tetrasubstituted cyclopropenylsilane compounds were isolated in good overall yields. An interesting...

Theoretical Analysis of the Relative Impact of Obesity on Hemodynamic Stability During Acute Hemorrhagic Shock.

Archives of trauma research

Sterling SA, Jones AE, Coleman TG, Summers RL.
PMID: 26566506
Arch Trauma Res. 2015 Sep 23;4(3):e22602. doi: 10.5812/atr.22602. eCollection 2015 Sep.

BACKGROUND: Evidence suggests that morbid obesity may be an independent risk factor for adverse outcomes in patients with traumatic injuries.OBJECTIVES: In this study, a theoretic analysis using a derivation of the Guyton model of cardiovascular physiology examines the expected...

Hidden orbital order in the heavy fermion metal URu(2)Si(2).

Nature

Chandra P, Coleman P, Mydosh JA, Tripathi V.
PMID: 12075346
Nature. 2002 Jun 20;417(6891):831-4. doi: 10.1038/nature00795.

When matter is cooled from high temperatures, collective instabilities develop among its constituent particles that lead to new kinds of order. An anomaly in the specific heat is a classic signature of this phenomenon. Usually the associated order is...

Onset of antiferromagnetism in heavy-fermion metals.

Nature

Schroder A, Aeppli G, Coldea R, Adams M, Stockert O, v. Lohneysen H, Bucher E, Ramazashvili R, Coleman P.
PMID: 11014185
Nature. 2000 Sep 21;407(6802):351-5. doi: 10.1038/35030039.

There are two main theoretical descriptions of antiferromagnets. The first arises from atomic physics, which predicts that atoms with unpaired electrons develop magnetic moments. In a solid, the coupling between moments on nearby ions then yields antiferromagnetic order at...

Showing 1 to 12 of 348 entries