Indications of coherence-incoherence crossover in layered metallic transport

For many strongly correlated metals with layered crystal structure the temperature dependence of the interlayer resistance is different to that of the intralayer resistance. We consider a small polaron model which exhibits this behavior, illustrating how the interlayer transport is related to the coherence of quasiparticles within the layers. Explicit results are also given for the electron spectral function, interlayer optical conductivity, and the interlayer magnetoresistance. All these quantities have two contributions: one coherent (dominant at low temperatures) and the other incoherent (dominant at high temperatures).

Self-consistent theory of atomic Fermi gases with a Feshbach resonance at the superfluid transition

A self-consistent theory is derived to describe the BCS-Bose-Einstein-condensate crossover for a strongly interacting Fermi gas with a Feshbach resonance. In the theory the fluctuation of the dressed molecules, consisting of both preformed Cooper pairs and bare Feshbach molecules, has been included within a self-consistent T-matrix approximation, beyond the Nozieres and Schmitt-Rink strategy considered by Ohashi and Griffin. The resulting self-consistent equations are solved numerically to investigate the normal-state properties of the crossover at various resonance widths. It is found that the superfluid transition temperature T-c increases monotonically at all widths as the effective interaction between atoms becomes more attractive. Furthermore, a residue factor Z(m) of the molecule's Green function and a complex effective mass have been determined to characterize the fraction and lifetime of Feshbach molecules at T-c. Our many-body calculations of Z(m) agree qualitatively well with recent measurments of the gas of Li-6 atoms near the broad resonance at 834 G. The crossover from narrow to broad resonances has also been studied.

Mixed order parameters, accidental nodes and broken time reversal symmetry in organic superconductors: a group theoretical analysis

We present a group theoretical analysis of several classes of organic superconductor. We predict that highly frustrated organic superconductors, such as K-(ET)(2)Cu-2(CN)(3) (where ET is BEDT-TTF, bis(ethylenedithio) tetrathiafulvalene) and beta'-[Pd(dmit)(2)](2)X, undergo two superconducting phase transitions, the first from the normal state to a d-wave superconductor and the second to a d + id state. We show that the monoclinic distortion of K-(ET)(2)Cu(NCS)(2) means that the symmetry of its superconducting order parameter is different from that of orthorhombic-K-(ET)(2)Cu[N(CN)(2)] Br. We propose that beta'' and theta phase organic superconductors have d(xy) + s order parameters.

Protection by polyphenol extract from olive stones against apoptosis produced by oxidative stress in human neuroblastoma cells

Objective: We evaluated the protective activity of an extract from a by-product such as olive stones, through its ability to inhibit H2O2 induced apoptosis in the SH-SY5Y human neuroblastoma cell line. Material and methods: To such end, 20,000 cells/well were cultivated and differentiation with retinoic acid was initiated. Once the cells were differentiated, apoptosis was induced with and without H2O2 extract. Finally, cDNA extraction was performed, and pro-apoptotic genes Bax and anti-apoptotic genes Bcl-2 were analyzed. Quantification of the gene expression was performed using the GAPDH gene marker. Results: Cell viability with the extract is 97.6% (SD 5.7) with 10 mg/l and 62.8% (SD 1.2) to 50 mg/l, using 10 mg/l for the biomarker assay. The retinoic acid differentiated SH-S cell line (10 µM) shows a clear apoptosis when treated with H2O2 150 µM, with a Bax/Bcl-2 ratio of 3.75 (SD 0.80) in contrast to the differentiated control cells subjected to H2O2 and with extract, which have the same ratio of 1.02 (SD 0.01-0.03). Conclusion: The olive stone extract shows anti-apoptotic activity in the provoked cell death of SH-SY5Y human neuroblastoma cells in their normal state, defending them from oxidative stress which produces a significant increase in the apoptotic gene ratio in contrast to anti-apoptotic genes (Bax/Bcl-2).

Estado Islámico: erosión de la estatalidad en Iraq y Siria y la aparición de una estatalidad paralela desde la proclamación del Califato hasta la caída de Kobane

El interés de este estudio de caso es analizar la naturaleza del Estado Islámico y su impacto en la estatalidad y soberanía de Iraq y Siria. Se estudia y explica cómo ha sido la evolución y expansión del Estado Islámico y el impacto que este proceso ha tenido sobre Iraq y Siria generando de esta manera la aparición de una estatalidad paralela a través de la construcción de un aparato institucional por parte del Estado Islámico, lo que contribuye al desarrollo de un “para-estado”. Siguiendo la línea argumentativa, finalmente se demuestra que en la evolución del Estado Islámico se logra crear una forma primitiva de Estado, adquiriendo poco a poco niveles de estatalidad, lo que lleva a que los Estados de Iraq y Siria pierdan atributos de estatalidad y de un Estado soberano.

El rol de los actores subnacionales en la construcción de la política exterior de Japón. Estudio de caso: La disputa territorial por las islas Senkaku/Diaoyu entre Japón y China (2001-2014)

El presente estudio de caso tiene como objetivo analizar la influencia de la gobernación de Tokio en la formulación de la política exterior de Japón durante la disputa territorial por las islas Senkaku/Diaoyu. Para ello, se identifican los puntos más relevantes de la política exterior de seguridad de Japón después de la Segunda Guerra Mundial. Se hace un énfasis en la política bilateral de seguridad sino-japonesa, con el fin de ubicar el conflicto territorial por las islas Senkaku/Diaoyu como un punto importante en la agenda internacional de seguridad de ambos países. Se estudia y analiza el concepto de paradiplomacia; articulado, a su vez, por los conceptos de identidad y rol en política exterior de la perspectiva teórica del Constructivismo de las Relaciones Internacionales, para así analizar la influencia de Tokio en el manejo de la política exterior de Japón en el marco del conflicto territorial por las islas Senkaku/Diaoyu.

Comparing auditory steady state response and auditory brainstem response in normal hearing adults

This paper presents a study examining auditory steady state response (ASSR) assessments compared to auditory brainstem response (ABR) assessments. The study examines the relationship between behavioral thresholds, click- and toneburst-ABR thresholds, and ASSR thresholds for normal hearing subjects using the commercially available GSI Audera instrument.

Comparing auditory steady-state response and auditory brainstem response in normal hearing adults

This paper compares the auditory steady state response (ASSR) thresholds with the click-evoked and tone burst auditory brainstem response (ABR) thresholds in their ability to predict known behavioral thresholds in normal-hearing adults.

Addresses delivered at the inauguration of Rev. Lewis W. Green, D.D., as a president of Transylvania University and State Normal School, November 18, 1856.

Published by order of the board.

The Northern Illinois State Normal School quarterly.

Some issues have also distinctive titles.

Cooperation of prevocational programs for handicapped young adults; rehabilitation-special education. Proceedings of a conference at Highland Park, Illinois. Sponsored by the U.S. Office of Vocational Rehabilitation and Illinois State Normal University, Oct. 30-31 and Nov. 1, 1961.

Mode of access: Internet.

A century of public teacher education; the story of the State teachers colleges as they evolved from the normal schools,

On spine: Public teacher education.

Minnesota State Normal Schools quarterly journal.

Mode of access: Internet.

Annual catalog of the State Normal School, Albion, Idaho for the year ... with course of study for the year ...

Mode of access: Internet.