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Showing 25 to 36 of 504 entries
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Influence of adsorption phenomenon on the impedance spectroscopy of a cell of liquid.

Physical review. E, Statistical, nonlinear, and soft matter physics

Barbero G.
PMID: 16089790
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Jun;71(6):062201. doi: 10.1103/PhysRevE.71.062201. Epub 2005 Jun 30.

We investigate the influence of the adsorption phenomenon on the impedance spectroscopy measurements. The analysis is performed by assuming that the ions have the same mobility and the electrodes are perfectly blocking. We find that in the low frequency...

What is the value of routine medical examinations of school children?.

The Medical press

BARBER G.
PMID: 18125013
Med Press. 1949 Apr 06;221(14):340-3.

No abstract available.

Are methyl groups electron-donating or electron-withdrawing in boron clusters? Permethylation of o-carborane.

Journal of the American Chemical Society

Teixidor F, Barberà G, Vaca A, Kivekäs R, Sillanpää R, Oliva J, Viñas C.
PMID: 16028913
J Am Chem Soc. 2005 Jul 27;127(29):10158-9. doi: 10.1021/ja052981r.

That methyl groups attached to carbon atoms are electron donors must not be generally assumed. In boron clusters, Me groups on boron are electron withdrawing. At the B3LYP/6-31G* level of theory, it has been proven that the Mulliken charge...

Impedance spectroscopy of water solutions: the role of ions at the liquid-electrode interface.

The journal of physical chemistry. B

Becchi M, Avendaño C, Strigazzi A, Barbero G.
PMID: 16375317
J Phys Chem B. 2005 Dec 15;109(49):23444-9. doi: 10.1021/jp044443r.

We discuss the influence of the ions dissolved in a liquid on the impedance spectroscopy of a cell. Our analysis is performed in the small-voltage regime, where the actual bulk density of ions is only slightly perturbed by the...

Silver coordination complexes as room-temperature multifunctional materials.

Chemistry (Weinheim an der Bergstrasse, Germany)

Pucci D, Barberio G, Bellusci A, Crispini A, Donnio B, Giorgini L, Ghedini M, La Deda M, Szerb EI.
PMID: 16933249
Chemistry. 2006 Sep 06;12(26):6738-47. doi: 10.1002/chem.200600408.

A series of bischelate ionic silver complexes [Ag(L*)(2)][X] was prepared by complexation of a newly synthesized 2,2'-bipyridine containing chiral alkoxy chains in the 4,4' positions. The appropriate choice of the construction motifs allows the preparation of new materials in...

Dependence of the anchoring energy on the applied voltage in a nematic cell.

The journal of physical chemistry. B

Zola RS, Evangelista LR, Barbero G.
PMID: 16771363
J Phys Chem B. 2006 Jun 15;110(23):11047-9. doi: 10.1021/jp061815i.

A nematic liquid crystal cell in the shape of a slab of thickness d and containing ionic impurities is considered in the presence of a dc voltage. A complete theoretical model to determine the electric field distribution across the...

On the Reflection and Re-emission of Electrons from Metal Surfaces: and a Method of Measuring the Ionizing Potential of Such Surfaces.

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

Millikan RA, Barber IG.
PMID: 16576571
Proc Natl Acad Sci U S A. 1921 Jan;7(1):13-8. doi: 10.1073/pnas.7.1.13.

No abstract available.

Time resolved experimental analysis of the electric field induced biaxial order reconstruction in nematics.

Physical review letters

Barberi R, Ciuchi F, Lombardo G, Bartolino R, Durand GE.
PMID: 15524762
Phys Rev Lett. 2004 Sep 24;93(13):137801. doi: 10.1103/PhysRevLett.93.137801. Epub 2004 Sep 20.

We present the time resolved experimental characterization of the biaxial switching between two topologically distinct textures of a nematic liquid crystal cell submitted to a strong electric field. This fast electro-optical effect is governed by the electric induced order...

Influence of the ions on the dynamical response of a nematic cell submitted to a dc voltage.

Physical review. E, Statistical, nonlinear, and soft matter physics

Scalerandi M, Pagliusi P, Cipparrone G, Barbero G.
PMID: 15244838
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 May;69(5):051708. doi: 10.1103/PhysRevE.69.051708. Epub 2004 May 26.

The influence of the ions present in a liquid crystal on the dynamical response of a nematic slab submitted to a dc voltage is studied. The evolution of the system toward the equilibrium state is investigated by solving the...

ACCP white paper: Essential components of a faculty development program for pharmacy practice faculty.

Pharmacotherapy

, Boyce EG, Burkiewicz JS, Haase MR, MacLaughlin EJ, Segal AR, Chung EP, Chan LN, Rospond RM, Barone JA, Durst SW, Wells BG.
PMID: 19113802
Pharmacotherapy. 2009 Jan;29(1):127. doi: 10.1592/phco.29.1.127.

Prospective, ongoing faculty development programs are important in the initial orientation and short- and long-term development of faculty in higher education. Pharmacy practice faculty are likely to benefit from a comprehensive faculty development program due to the complex nature...

Fractional diffusion equation and impedance spectroscopy of electrolytic cells.

The journal of physical chemistry. B

Lenzi EK, Evangelista LR, Barbero G.
PMID: 19637845
J Phys Chem B. 2009 Aug 20;113(33):11371-4. doi: 10.1021/jp904741m.

The influence of the ions on the electrochemical impedance of a cell is calculated in the framework of a complete model in which the fractional drift-diffusion problem is analytically solved. The resulting distribution of the electric field inside the...

Surface energy of a nematic liquid crystal in contact with structured surfaces.

Physical review. E, Statistical, nonlinear, and soft matter physics

Alexe-Ionescu AL, Barbero G, Komitov L.
PMID: 19792140
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Aug;80(2):021701. doi: 10.1103/PhysRevE.80.021701. Epub 2009 Aug 06.

A generalization of the functional form of the anchoring energy of a nematic liquid crystal in contact with a structured surface is proposed. The structured surface is represented by side-chain polymer, containing only aliphatic or aliphatic and mesogenic side...

Showing 25 to 36 of 504 entries