Results 41 to 50 of about 43,462 (184)

Electrochemical Analysis on Compounds of the Vitamin B6 Family Using Glassy Carbon Electrodes

International Journal of Electrochemical Science, 2012
The electrochemical reduction of vitamin B6 group and related compounds has been performed at pH neutral using glassy carbon electrodes. Irreversible bi- or tetra-electronic processes controlled by diffusion on the top of the wave are observed for these ...
J. Gonzalez-Rodriguez, J.M. Sevilla, T. Pineda, M. Blazquez   +3 more
doaj   +1 more source

Field-induced magnetic anisotropy in La0.7Sr0.3CoO3

, 2003
Magnetic anisotropy has been measured for the ferromagnetic La0.7Sr0.3CoO3 perovskite from an analysis of the high-field part of the magnetization vs. field curves, i.e., the magnetic saturation regime.
Balcells L. L., Bozorth R. M., Chikazumi S., Herpin A., J Mira, J Rivas, M Vázquez, M. A. Señarís Rodríguez, M. R Ibarra, Morrish A. H., Perekalina T. M., R Caciuffo   +11 more
core   +2 more sources

Generalized Casimir forces in non-equilibrium systems [PDF]

, 2006
In the present work we propose a method to determine fluctuation induced forces in non equilibrium systems. These forces are the analogue of the well known Casimir forces, which were originally introduced in Quantum Field theory and later extended to the
C. W. Gardiner, D. Forster, H. B. G. Casimir, H. G. Stanley, I. Brankov, I. S. Gradshteyn, J. García-Ojalvo, J. L. Cardy, J. M. Ortiz de Zárate, M. Fisher, M. Krech, P. G. de Gennes, R. Brito, R. Soto, U. Marini Bettolo Marconi   +14 more
core   +3 more sources

Correlation energy contribution to nuclear masses

, 2004
The ground state correlation energies associated with collective surface and pairing vibrations are calculated for Pb- and Ca-isotopes. It is shown that this contribution, when added to those predicted by one of the most accurate modern nuclear mass ...
Bender M, Bertsch G F, Bes D R, Bohr A, Broglia R A, E Vigezzi, Esbensen H, F Barranco, G Colò, G Gori, Goriely S, M Armati, R A Broglia, Ring P, Rolfs C E, S Baroni, Shimizu Y R, Stetcu I, Tanihata I   +18 more
core   +1 more source

A lattice estimate of the g_{D^* D pi} coupling [PDF]

, 2002
We present the results of the first direct determination of the g_{D^* D pi} coupling using lattice QCD. From our simulations in the quenched approximation, we obtain g_{D^* D pi} = 18.8 +/- 2.3^{+1.1}_{-2.0} and hat(g) = 0.67 +/- 0.08^{+0.04}_{-0.06 ...
A. Abada, A. Le Yaouanc, Abada, Ahmed, Becirevic, Casalbuoni, D. Bec´irevic´, de Divitiis, G. Herdoiza, J. Rodriguez-Quintero, J.P. Leroy, O. Pe`ne, Ph. Boucaud   +12 more
core   +2 more sources

New Approach Methodologies (NAMs) in Alternative Methods: A Comparative Cytotoxicity Analysis of Nanostructured Hydroxyapatite in Adipose Stem Cells Spheroids

Journal of Applied Toxicology, EarlyView.
ABSTRACT Toxicological assessment is essential in NP approval for health and medical applications. Although 2D cell culture has been widely used, 3D models, especially spheroids, provide better predictive value for toxicological risk assessments since they replicate complex cellular interactions more accurately.
Bianca Montenegro, Rosângela Mayer Gonçalves, Marcelle Gomes Pegurier, Isabelle Amorim, Alexandre Malta Rossi, Leandra Santos Baptista   +5 more
wiley   +1 more source

Heme-binding enables allosteric modulation in an ancient TIM-barrel glycosidase

Nature Communications, 2021
Family 1 glycosidases (GH1) are present in the three domains of life and share classical TIM-barrel fold. Structural and biochemical analyses of a resurrected ancestral GH1 enzyme reveal heme binding, not known in its modern descendants.
Gloria Gamiz-Arco, Luis I. Gutierrez-Rus, Valeria A. Risso, Beatriz Ibarra-Molero, Yosuke Hoshino, Dušan Petrović, Jose Justicia, Juan Manuel Cuerva, Adrian Romero-Rivera, Burckhard Seelig, Jose A. Gavira, Shina C. L. Kamerlin, Eric A. Gaucher, Jose M. Sanchez-Ruiz   +13 more
doaj   +1 more source

Global regulation of robots using only position measurements [PDF]

, 1992
In this note we propose a simple solution to the regulation problem of rigid robots based on the availability of only joint position measurements. The controller consists of two parts: (1) a gravitation compensation, (2) a linear dynamic first-order ...
Berghuis, Harry, Nijmeijer, Henk
core   +3 more sources

Effect of Zinc Oxide Nanoparticles From Infant Formula Milk Powder on Colon Cells In Vitro

Journal of Applied Toxicology, EarlyView.
ABSTRACT Zinc is an essential trace element that participates in numerous metabolic processes; however, excessive exposure may interfere with the absorption of other metals, such as copper. In recent years, nanotechnology has experienced rapid growth, and zinc oxide nanoparticles (ZnO NPs) have garnered significant attention due to their versatile ...
Gloria Salinas‐Lucero, Karla Juarez‐Moreno, Rafael Vazquez‐Duhalt   +2 more
wiley   +1 more source

Epitaxial growth of non-polar a-plane ZnO and aluminium-doped ZnO on r-sapphire using the intermittent spray pyrolysis methodology

Applied Surface Science Advances
In this article, we highlight the epitaxial growth of non-polar a-plane ZnO and aluminium-doped ZnO using the low-cost, non-vacuum and highly up-scalable intermittent spray pyrolysis technique.
Cerine Treesa Russel, Carmen Martinez Tomas, Vicente Muñoz Sanjosé   +2 more
doaj   +1 more source