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Showing 1 to 12 of 212 entries
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Terahertz response and colossal Kerr rotation from the surface states of the topological insulator Bi2Se3.

Physical review letters

Valdés Aguilar R, Stier AV, Liu W, Bilbro LS, George DK, Bansal N, Wu L, Cerne J, Markelz AG, Oh S, Armitage NP.
PMID: 22463570
Phys Rev Lett. 2012 Feb 24;108(8):087403. doi: 10.1103/PhysRevLett.108.087403. Epub 2012 Feb 22.

We report the THz response of thin films of the topological insulator Bi2Se3. At low frequencies, transport is essentially thickness independent showing the dominant contribution of the surface electrons. Despite their extended exposure to ambient conditions, these surfaces exhibit...

Multivitamins and minerals modulate whole-body energy metabolism and cerebral blood-flow during cognitive task performance: a double-blind, randomised, placebo-controlled trial.

Nutrition & metabolism

Kennedy DO, Stevenson EJ, Jackson PA, Dunn S, Wishart K, Bieri G, Barella L, Carne A, Dodd FL, Robertson BC, Forster J, Haskell-Ramsay CF.
PMID: 26870152
Nutr Metab (Lond). 2016 Feb 11;13:11. doi: 10.1186/s12986-016-0071-4. eCollection 2016.

BACKGROUND: The brain is by far the most metabolically active organ in the body, with overall energy expenditure and local blood-supply closely related to neural activity. Both energy metabolism and cerebral vaso-dilation are dependent on adequate micronutrient status. This...

A Fluxional Copper Acetylide Cluster in CuAAC Catalysis.

Angewandte Chemie (International ed. in English)

Makarem A, Berg R, Rominger F, Straub BF.
PMID: 25925614
Angew Chem Int Ed Engl. 2015 Jun 15;54(25):7431-5. doi: 10.1002/anie.201502368. Epub 2015 Apr 29.

A molecularly defined copper acetylide cluster with ancillary N-heterocyclic carbene (NHC) ligands was prepared under acidic reaction conditions. This cluster is the first molecular copper acetylide complex that features high activity in copper-catalyzed azide-alkyne cycloadditions (CuAAC) with added acetic...

Dietary mixing in three generalist herbivores: nutrient complementation or toxin dilution?.

Oecologia

Hägele BF, Rowell-Rahier M.
PMID: 28307710
Oecologia. 1999 Jun;119(4):521-533. doi: 10.1007/s004420050815.

We reared larvae of three generalist insect species on plants occurring in their habitats. Individuals of each species were kept either on mixed diets, or on each plant species separately. We measured food plant preference in the mixed-diet group...

[P,P-Di-tert-butyl-N-trimethylsilyl-P-(trimethylsilylamino)phosphine imidato-kappa2N,N']bis(pyridine-kappaN)lithium(I).

Acta crystallographica. Section C, Crystal structure communications

Schultz M, Straub BF, Hofmann P.
PMID: 11932535
Acta Crystallogr C. 2002 Apr;58:M256-7. doi: 10.1107/s0108270102002706. Epub 2002 Mar 21.

In the title compound, [Li(C(14)H(36)N(2)PSi(2))(C(5)H(5)N)(2)], the bulky chelating monoanionic P,P-di-tert-butyl-N-trimethylsilyl-P-(trimethylsilylamino)phosphine imidate ligand and two pyridine ligands bind to Li in a pseudo-tetrahedral arrangement with twofold symmetry. The Li-N(phosphine) distance is 2.048 (5) A, while the Li.P distance is 2.520...

Mechanism of enyne metathesis catalyzed by Grubbs ruthenium-carbene complexes: a DFT study.

Journal of the American Chemical Society

Lippstreu JJ, Straub BF.
PMID: 15898794
J Am Chem Soc. 2005 May 25;127(20):7444-57. doi: 10.1021/ja042622g.

The complete catalytic cycle of the reaction of alkenes and alkynes to dienes by Grubbs ruthenium carbene complexes has been modeled at the B3LYP/LACV3P**+//B3LYP/LACVP level of theory. The core structures of the substrates and the catalyst were used as...

Objective measurement of veal color for classification purposes.

Meat science

Denoyelle C, Berny F.
PMID: 22063202
Meat Sci. 1999 Nov;53(3):203-9. doi: 10.1016/s0309-1740(99)00056-x.

2300 veal calves were used to compare the ability of chromameters to measure the veal meat color on-line and to develop a relationship between instrumental and visual assessments to predict the color score according to the EC-system of classification....

Principles of transactional analysis.

Indian journal of psychiatry

Berne E.
PMID: 21709849
Indian J Psychiatry. 1996 Jul;38(3):154-9.

Transactional analysis is part of a comprehensive system of individual and social psychiatry. It offers an indigenous approach to group therapy by making maximum therapeutic use of the tmsactions which continually lake place between those present. These transactions are...

Magneto-optical fingerprints of distinct graphene multilayers using the giant infrared Kerr effect.

Scientific reports

Ellis CT, Stier AV, Kim MH, Tischler JG, Glaser ER, Myers-Ward RL, Tedesco JL, Eddy CR, Gaskill DK, Cerne J.
PMID: 24189548
Sci Rep. 2013 Nov 05;3:3143. doi: 10.1038/srep03143.

The remarkable electronic properties of graphene strongly depend on the thickness and geometry of graphene stacks. This wide range of electronic tunability is of fundamental interest and has many applications in newly proposed devices. Using the mid-infrared, magneto-optical Kerr...

Establishment of a healthy human range for the whole blood 'OX40' assay for the detection of antigen-specific CD4+ T cells by flow cytometry.

Cytometry. Part B, Clinical cytometry

Sadler R, Bateman EA, Heath V, Patel SY, Schwingshackl PP, Cullinane AC, Ayers L, Ferry BL.
PMID: 24520004
Cytometry B Clin Cytom. 2014 Feb 11; doi: 10.1002/cytob.21165. Epub 2014 Feb 11.

Background: Clinical investigation of antigen-specific T cells in potentially immunodeficient patients is an important and often challenging aspect of patient diagnostic work up. Methods for detection of microbial exposure to the T cell compartment exist but are laborious and...

Chemical modification of proteins.

Methods in molecular biology (Clifton, N.J.)

Carne AF.
PMID: 21400156
Methods Mol Biol. 1988;3:89-98. doi: 10.1385/0-89603-126-8:89.

The two most widely used applications for chemical modification are in primary structure analysis and in the identification of essential groups involved in the binding and catalytic sites of proteins. The methods discussed here are those used frequently in...

CO2 on a tightrope: stabilization, room-temperature decarboxylation, and sodium-induced carboxylate migration.

Chemistry (Weinheim an der Bergstrasse, Germany)

Häussermann A, Rominger F, Straub BF.
PMID: 22997025
Chemistry. 2012 Oct 29;18(44):14174-85. doi: 10.1002/chem.201202298. Epub 2012 Sep 20.

A sterically shielded 3-substituted zwitterionic N,N-dimethylisotryptammonium carboxylate has been synthesized by consecutive chemoselective double alkylation of indole. The carboxylate undergoes a quantitative and unusually facile decarboxylation in dimethyl sulfoxide (DMSO) or dimethyl formamide (DMF) at room temperature. The breaking...

Showing 1 to 12 of 212 entries