Results 51 to 60 of about 53,179 (222)

Temperature behavior of the magnon modes of the square lattice antiferromagnet

, 1999
A spin-wave theory of short-range order in the square lattice Heisenberg antiferromagnet is formulated. With growing temperature from T=0 a gapless mode is shown to arise simultaneously with opening a gap in the conventional spin-wave mode.
A. Sherman, A. Sherman, A. Sokol, A. V. Chubukov, D. A. Arovas, H. Shimahara, J. D. Reger, M. S. Makivić, M. Schreiber, M. Takahashi, N. D. Mermin, S. Chakravarty, S. Liang, S. Tang, S. V. Tyablikov, Y. Okabe   +15 more
core   +1 more source

Possible predicative role of electrical risk score on transcatheter aortic valve replacement outcomes in older patients. preliminary data [PDF]

, 2018
Background:Transcatheter aortic valve replacement (TAVR) is an effective procedure capable to change the natural history of the degenerative aortic valve stenosis.
DI IORIO, Claudia, Fabietti, Marcella, Magri', Damiano, Mancone, Massimo, Mariani, MARCO VALERIO, Mastropietri, Fabiola, Moscucci, Federica, Parrotta, Ilaria, Piccirillo, Gianfranco, Sardella, Gennaro   +9 more
core   +1 more source

Multimodal Luminescence from LaAlO3:Eu3+ via Trap Modulation for High‐Temperature Applications

Advanced Photonics Research, EarlyView.
LaAlO3:Eu3+ (LAO:E) phosphor exhibiting multimode luminescence enabled by multilevel traps spanning shallow to deep states is reported. These traps ensure controlled charge storage and release at room and elevated temperatures. Experimental studies and theoretical calculations reveal the trapping–detrapping mechanism, highlighting LAO:E as a promising ...
Abdulelah Alolayan, Nimai Pathak, Kawsar Ali, Yuanbing Mao   +3 more
wiley   +1 more source

QT dispersion in the electrocardiogram in hemodialysis and peritoneal dialysis patients

Saudi Journal of Kidney Diseases and Transplantation, 2014
To evaluate QT dispersion (QTd) in dialysis patients in an analytic cross-sectional study, three groups were enrolled: Hemodialysis (HD), peritoneal dialysis (PD) and control (30 patients in each group) to study QT parameters in 12-lead ...
Sadraddin Rasi Hashemi, Hamid Noshad, Iman Yazdaninia, Bahram Sohrabi, Ahmad Separham   +4 more
doaj   +1 more source

Biochar‐Iron Oxide Composites for Adsorption of Chlorophenoxy Herbicides: Impact of Chlorine Substituents on Bath and Continuous Adsorption Performance

Advanced Sustainable Systems, EarlyView.
Iron oxide‐impregnated biochar from sugarcane bagasse exhibits remarkable efficiency in removing 2,4‐dichlorophenoxyacetic acid and chlorophenoxyacetic acid, offering a sustainable option for water purification. The material retains high performance under real conditions while meeting safety criteria for irrigation use. Distinct structural features and
Thamiris Ferreira Souza, Raphael Longuinhos Monteiro Lobato, Luisa Cardoso Maia, Lavínia Nunes Louzada, Maria Elisa Avila Faria, Lucas Ferreira Fernandes, Leandro Vinícius Alves Gurgel, Gabriel Max Dias Ferreira, Jenaina Ribeiro‐Soares, Guilherme Max Dias Ferreira   +9 more
wiley   +1 more source

Dispersion for Data-Driven Algorithm Design, Online Learning, and Private Optimization

, 2018
Data-driven algorithm design, that is, choosing the best algorithm for a specific application, is a crucial problem in modern data science. Practitioners often optimize over a parameterized algorithm family, tuning parameters based on problems from their
Balcan, Maria-Florina, Dick, Travis, Vitercik, Ellen   +2 more
core   +1 more source

Polyethyleneimine‐Modified Biosorbent Based on Banana Pseudostem Biomass for Environmental Remediation and Food Analysis

Advanced Sustainable Systems, EarlyView.
Biosorbents derived from banana pseudostem are functionalized with polyethyleneimine, with or without glutaraldehyde, and evaluated for dye removal and solid‐phase extraction. The materials exhibit high adsorption capacities and broad pH applicability in dye removal, while computational studies reveal amino groups as key interaction sites.
João Antonio Tavares Barboza, Maria Elisa Avila Barboza, Gustavo A. Andolpho, Nathan Patrocínio Viana, Kleryton Luiz Alves de Oliveira, Renata Pereira Lopes Moreira, Júlia Harumi Shinozaki, Letícia Tessaro, Alexandre L. B. Baccaro, Fabiana S. Felix, Teodorico C. Ramalho, Guilherme Max Dias Ferreira   +11 more
wiley   +1 more source

QT interval and P wave dispersion in slow coronary flow phenomenon

ARYA Atherosclerosis, 2018
BACKGROUND: Slow coronary flow (SCF) phenomenon is an angiographic finding which is defined as slow contrast passage through coronary arteries which may predispose patients to serious cardiac complications such as fatal arrhythmias.
Ali Eshraghi, Emadoddin Hoseinjani, Majid Jalalyazdi, Mohammad Vojdanparast, Reza Jafarzadeh-Esfehani   +4 more
doaj   +1 more source

On the Formation of Planetesimals via Secular Gravitational Instabilities with Turbulent Stirring

, 2011
We study the gravitational instability (GI) of small solids in a gas disk as a mechanism to form planetesimals. Dissipation from gas drag introduces secular GI, which proceeds even when standard GI criteria for a critical density or Toomre's $Q$ predict ...
Andrew N. Youdin, Andrews, Bai, Bai, Bernstein, Bromley, Chiang, Coradini, Cuzzi, Cuzzi, Doressoundiram, Fleming, Gammie, Goldreich, Hernández, Johansen, Johansen, Johansen, Kenyon, Kenyon, Lee, Lissauer, Lithwick, Nesvorný, Oishi, Perez-Becker, Russell, Safronov, Sekiya, Shariff, Shu, Shu, Spiegel, Völk, Wakita, Ward, Ward, Weidenschilling, Weidenschilling, Whipple, Youdin, Youdin, Youdin, Youdin, Youdin, Youdin, Youdin   +46 more
core   +1 more source

Roy-Steiner equations for pion-nucleon scattering [PDF]

, 2012
Starting from hyperbolic dispersion relations, we derive a closed system of Roy-Steiner equations for pion-nucleon scattering that respects analyticity, unitarity, and crossing symmetry.
A Anisovich, A Bottino, A Gasparyan, A Martin, A Martin, A Martin, A Schenk, B Ananthanarayan, B Ananthanarayan, B Ananthanarayan, B Moussallam, B. Kubis, Bateman Manuscript Project, BR Martin, C. Ditsche, CD Froggatt, D Bugg, D Gotta, DA Varshalovich, E Pietarinen, F Huang, F Steiner, F Steiner, F-K Guo, FFK Cheung, G Colangelo, G Hite, G Höhler, G Höhler, G Höhler, G Höhler, G Wanders, GC Oades, GE Hite, GF Chew, H Lehmann, I Caprini, I Caprini, J Baacke, J Gasser, J Gasser, J Gasser, J Stahov, J Stahov, J Stahov, J Swart de, JF Donoghue, JL Basdevant, JR Ellis, K Nakamura, KM Watson, LS Brown, M Döring, M Froissart, M Hoferichter, M Jacob, M. Hoferichter, MA Belushkin, MJ Musolf, MM Nagels, MM Pavan, N Fettes, N Fettes, NI Muskhelishvili, P Büttiker, P Büttiker, P Metsä, PDB Collins, PMM Maessen, R Arndt, R García-Martín, R García-Martín, R Koch, R Koch, R Koch, R Koch, R Omnès, RA Arndt, S Descotes-Genon, S Descotes-Genon, S Mandelstam, S Mandelstam, S Mandelstam, S Roy, SM Flatté, SW MacDowell, SW MacDowell, T Becher, T Cheng, T Regge, T Strauch, TA Rijken, TN Pham, TWB Kibble, U.-G. Meißner, V Baru, V Baru, V Bernard, VGJ Stoks, WB Kaufmann, WR Frazer, WR Frazer, WR Frazer   +102 more
core   +2 more sources