Mexicans in the Midwest, 1900-1932

Review of: Mexicans in the Midwest, 1900-1932. García, Juan R

Mexicans in the Midwest, 1900-1932

Review of: Mexicans in the Midwest, 1900-1932. García, Juan R

Experimental demonstration of graphene plasmons working close to the near-infrared window

Due to strong mode-confinement, long propagation-distance, and unique tunability, graphene plasmons have been widely explored in the mid-infrared and terahertz windows. However, it remains a big challenge to push graphene plasmons to shorter wavelengths in order to integrate graphene plasmon concepts with existing mature technologies in the near-infrared region. We investigate localized graphene plasmons supported by graphene nanodisks and experimentally demonstrated graphene plasmon working at 2 {\mu}m with the aid of a fully scalable block copolymer self-assembly method. Our results show a promising way to promote graphene plasmons for both fundamental studies and potential applications in the near-infrared window.Comment: 6 pages, 4 figures, a revised versio

Mexicans in the Midwest, 1900-1932

Review of: Mexicans in the Midwest, 1900-1932. García, Juan R

Structural, Magnetic and Magneto-caloric studies of Ni50Mn30Sn20Shape Memory Alloy

We have synthesized a nominal composition of Ni50Mn30Sn20 alloy using arc melting technique. Rietveld refinement confirms the austenite L21 structure in Fm-3m space group. Electrical resistivity has been found to clearly exhibiting two different phenomena viz. a magnetic transition from paramagnetic to ferromagnetic and a structural transition from austenite to martensitic phase. Thermo-magnetization measurements M(T) confirms ferromagnetic transition temperature TC at 222 K and martensitic transition starting at 127 K(MS). Magnetization measurement M(H) at 10 K confirms the ferromagnetic state. Frequency dependence of ac susceptibility \c{hi}' at low temperature suggests spin glass behavior in the system. The isothermal magnetic entropy change values have been found to be 1.14 J/Kg.K, 2.69 J/Kg.K and 3.9 J/Kg.K, with refrigeration capacities of 19.6 J/kg, 37.8 J/kg and 54.6 J/kg for the field change of 1, 2 and 3 Tesla respectively at 227 K.Comment: 16 pages text + Figs. Ni50Mn30Sn20 alloy: reasonable refrigeration capacity tunable to Room

Jaime García Maffla folio

A folio of poetry by Jaime García Maffla, appearing in the Spanish original and in the English translation by Libertad Garzón

Manuel García. Herencia vocal. Presente y futuro

Manuel García representa el corazón de los cantantes de Bel Canto con la magnificencia de sus habilidades vocales, las cuales trató de infundir tanto en sus textos y en sus hijos –María Malibrán, Pauline Viardot y Manuel Patricio García– como también en sus alumnos. A través de datos históricos y un profundo y vasto análisis de los textos anteriores a García, mostraré como el aspecto mecánico de la técnica vocal llega hasta Manuel García proveniente de los castrados españoles incluso antes de la creación de la ópera

Female directorship on boards and corporate sustainability policies: Their effect on sustainable development

We aim to explore whether board gender diversity, specifically women institutional directors, improves the sustainability development and stakeholder engagement of listed firms by affecting corporate social responsibility (CSR) policies. Moreover, within female institutional directors we can differentiate between banks and insurance companies (pressure-sensitive female institutional directors) and mutual funds, investment funds, pension funds and venture capital firms (pressure-resistant female institutional directors). Thus, the effect of these categories of directors on CSR policies is also analysed. Our findings suggest that female institutional, as a whole, have a positive effect on CSR policies, the same behaviour that show pressure-resistant female institutional, while pressure-sensitive institutional do not impact on CSR policies. This research provides a new framework for the role played by certain types of female directors (female institutional directors, female pressure-sensitive directors and female pressure-resistant directors) in CSR policies and, thus, may help policymakers to promote CSR policies, and to take action to promote responsible behaviour among listed firms

Alexina B., Contemporary Opera as Consolation

Review-Essay of the opera Alexina B. Music by Raquel García-Tomás, libretto by Irène Gayraud, stage direction by Marta Pazos. Gran Teatre del Liceu, Barcelona, March 2023