Results 81 to 90 of about 42,713 (266)

Ultrafast Gap Dynamics and Electronic Interactions in a Photoexcited Cuprate Superconductor

Physical Review X, 2017
We perform time- and angle-resolved photoemission spectroscopy (trARPES) on optimally doped Bi_{2}Sr_{2}CaCu_{2}O_{8+δ} (BSCCO-2212) using sufficient energy resolution (9 meV) to resolve the k-dependent near-nodal gap structure on time scales where the ...
S. Parham, H. Li, T. J. Nummy, J. A. Waugh, X. Q. Zhou, J. Griffith, J. Schneeloch, R. D. Zhong, G. D. Gu, D. S. Dessau   +9 more
doaj   +1 more source

Mass spectrometry-based serum proteome pattern analysis in molecular diagnostics of early stage breast cancer

Journal of Translational Medicine, 2009
Background Mass spectrometric analysis of the blood proteome is an emerging method of clinical proteomics. The approach exploiting multi-protein/peptide sets (fingerprints) detected by mass spectrometry that reflect overall features of a specimen's ...
Stobiecki Maciej, Deja Regina, Chmura Aleksandra, Walaszczyk Anna, Nowicka Elzbieta, Behrendt Katarzyna, Polanska Joanna, Marczak Lukasz, Pietrowska Monika, Polanski Andrzej, Tarnawski Rafal, Widlak Piotr   +11 more
doaj   +1 more source

Combined In‐Solution and On‐Surface Synthesis of a Fully Fused Cross‐Shaped Phthalocyanine Pentamer

Angewandte Chemie International Edition, EarlyView.
A phthalocyanine (Pc) pentamer was obtained through the combination of in‐solution and on‐surface synthesis under ultra‐high vacuum conditions. The resulting Pc‐based nanostructure presents an exact 4:1 ratio of two different metal ions with precise positional control.
Luis M. Mateo, Tzu‐Chao Hung, Andreas Rank, Raffael Spachtholz, Felix Giselbrecht, Jonas Schön, Leo Gross, Jascha Repp, Diego Peña   +8 more
wiley   +1 more source

Nodal/Antinodal Dichotomy and the Two Gaps of a Superconducting Doped Mott Insulator

, 2008
We study the superconducting state of the hole-doped two-dimensional Hubbard model using Cellular Dynamical Mean Field Theory, with the Lanczos method as impurity solver.
A. Georges, G. Kotliar, K. Haule, K. H. Bennemann, M. Capone, M. Civelli, O. Parcollet, T. D. Stanescu   +7 more
core   +1 more source

Distinct Fermi-Momentum Dependent Energy Gaps in Deeply Underdoped Bi2212

, 2006
We use angle-resolved photoemission spectroscopy applied to deeply underdoped cuprate superconductors Bi2Sr2(Ca,Y)Cu2O8 (Bi2212) to reveal the presence of two distinct energy gaps exhibiting different doping dependence.
Devereaux, T. P., Fujii, T., Fujimori, A., Hussain, Z., Lee, W. S., Lu, D. H., Risdiana, Scalapino, D. J., Shen, Z. -X., Tanaka, Kiyohisa, Terasaki, I.   +10 more
core   +1 more source

Twisted 1‐ and 2‐Azaperopyrenes: Synthesis, Structure, and Properties

Chemistry – A European Journal, EarlyView.
ABSTRACT A synthesis of hitherto unknown 1‐ and 2‐azaperopyrenes, twisted nitrogen‐doped peropyrenes, is reported. The synthesis is based on a Brønsted acid‐mediated benzannulation of alkynes. Key alkyne intermediates are synthesized via two complementary routes, including a Pd/C‐catalyzed, copper‐ and amine‐free Sonogashira‐type coupling of (hetero ...
Ricardo Molenda, Arpine Vardanyan, Alexander Villinger, Peter Ehlers, Peter Langer   +4 more
wiley   +1 more source

A Stabilised Nodal Spectral Element Method for Fully Nonlinear Water Waves, Part 2: Wave-body interaction

, 2017
We present a new stabilised and efficient high-order nodal spectral element method based on the Mixed Eulerian Lagrangian (MEL) method for general-purpose simulation of fully nonlinear water waves and wave-body interactions. In this MEL formulation a standard Laplace formulation is used to handle arbitrary body shapes using unstructured - possibly ...
Engsig-Karup, A. P., Monteserin, C., Eskilsson, C.   +2 more
openaire   +2 more sources

Rh‐Catalyzed [2 + 2 + 2] Cycloaddition of Linked Bis(Diynes) Ar‐C≡C‐C≡C‐(CH2)3‐C≡C‐C≡C‐Ar With Quinones: Synthesis and Photophysical Properties of Bis(Arylethynyl)‐Naphthoquinones and Anthraquinones

Chemistry – A European Journal, EarlyView.
We report the synthesis bis(arylethynyl)naphtho‐ and anthraquinones via Rh(I)‐catalyzed [2 + 2 + 2] cycloaddition reactions. The substrate scope of both quinones and linked bis‐diynes was explored. Microwave irradiation remarkably enhanced yields.
Luana A. Machado, Jianhua Han, Fábio G. Delolo, Joyce C. Oliveira, Breno U. Abreu, Hállen D. R. Calado, Joannes Krebs, Leibo Tan, Qing Ye, Tobias Groß, Christoph Lambert, Camille Latouche, Abdou Boucekkine, Jean‐François Halet, Holger Braunschweig, Todd B. Marder, Eufrânio N. da Silva Júnior   +16 more
wiley   +1 more source

Bosons in high temperature superconductors: an experimental survey

, 2011
We review a number of experimental techniques that are beginning to reveal fine details of the bosonic spectrum \alpha^2F(\Omega) that dominates the interaction between the quasiparticles in high temperature superconductors. Angle-resolved photo emission
Bauer J Sangiovanni G, Campuzano J C, Caprara S Di Castro C Muschler B Hackl R Lambacher M Erb A Komiya S Ando Y Grilli M, Chubukov A V, Datta T Carlson E W Hu J, Eliashberg G M, Gallais Y, Garcia D R, Hwang J Timusk T Carbotte J P, Johnston S, Jules P Carbotte, Jungseek Hwang, Migdal A B, Muschler B, Pan Z-H, Puchkov A V, Scalapino D J, Schachinger E, Schachinger E, Thomas Timusk, Timusk T, Yoshida T, Zhao L, Ziman J M   +23 more
core   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal, Martha Eugenia Albores Velasco, René O. Vargas, Rubén Mil‐Martínez   +3 more
wiley   +1 more source