Entrevista a Roberto Fernández Retamar: la poesía, la Piadosa, me dio una razón para vivir (De la Escena Contemporánea. Entrevista)

El poeta y ensayista cubano confiesa que la poesía le dio una razón para vivir, y que sigue siendo su gran amor. Aunque difícil de definir, plantea que al ser humano le resulta imposible resistir sin ella: en toda crisis (la enfermedad, la muerte o la guerra), se recurre a la poesía. Las influencias literarias le llegaron de escritores alemanes, franceses y latinoamericanos (sobre todo, de Jorge Luis Borges, José Lezama Lima, Octavio Paz y Alfonso Reyes). El autor cubano destaca los méritos de varios poetas ecuatorianos y latinoamericanos. De Lezama Lima, quien “vivía para la poesía y el espíritu, con apenas unos pesitos”, resalta su sentido coral de la cultura (como construcción colectiva) y de la literatura. Respecto de la Revolución, aun reconociendo que hubo errores, está convencido de que es lo mejor que pudo pasarle a Cuba, no solo porque es la que buscó con insistencia, de Martí a Lezama, sino porque es la que triunfó y sigue adelante, pese al bloqueo económico de medio siglo por parte de la mayor potencia mundial, y de todas las dificultades.

El tío tarambana está de cumpleaños (José Lezama Lima en su centenario) [Homenaje]

El escritor cubano le rinde tributo a su compatriota, José Lezama Lima, a propósito de celebrarse en 2010 el centenario de su natalicio, a través de este texto en el que da cuenta de lo que fue su descubrimiento, en determinado momento, de la obra del autor de Paradiso, luego, su deslumbramiento al lograr penetrar, desde un ejercicio intenso de estudio y desciframiento, los códigos esquivos que circulan por la poesía lezamiana, al igual que la riqueza simbólica que expresa su narrativa, y lo desconcertante que resultan sus ensayos. La lectura de Curbelo es una celebración de todo lo que es el universo literario de Lezama dentro de esa continua deconstrucción de los géneros. Como bien señala Curbelo, su persistente y siempre experimental acercamiento a la obra del autor habanero, es resultado de quien se sabe “un lezamiano, no un lezamista, y ese matiz entraña su riesgo”.

Entrevista a Francisco Proaño Arandi: se trataba de crear en el lector una sensación de angustia frente a la realidad (Homenaje)

En este diálogo entre el escritor Francisco Proaño Arandi (Premio latinoamericano José María Arguedas, La Habana, 2010) y el lúcido crítico y ensayista Alejandro Moreano, se pasa revista a los años de formación del narrador, la década de los 60, los tzántzicos, la creación de la revista La bufanda del sol, el Frente Cultural en Quito. Proaño, hurgando en la memoria, reconstruye los diversos momentos de lo que fue el debate político y literario de esos años, el peso de la Revolución cubana, las ideas y las propuestas del compromiso del filósofo Jean-Paul Sartre, las luchas anticolonialistas en África, Mayo del 68 y su repercusión en la juventud del mundo, los escritores del boom de la narrativa latinoamericana, su experiencia como diplomático de carrera durante procesos y gobiernos que se sucedieron en el Ecuador en los años 80 y 90. El escritor también da cuenta de lo que es su universo narrativo, las obsesiones, la presencia de una ciudad como Quito en sus diversas novelas y cuentarios, así como la reflexión que a través de sus personajes realiza de las complejas relaciones de la pareja. Diálogo que no solo significó el encuentro de escritores de una misma generación, sino de dos amigos que han sabido compartir la pasión por la escritura de manera vital.

La formación de las identidades y los imaginarios nacionales en Cuba a inicios del siglo XIX (Estudios)

Este trabajo analiza el proceso de nacimiento y formación de la conciencia nacional cubana desde la perspectiva del imaginario icónico, en el que tuvieron un destacado papel las imágenes que plasmaron pintores y grabadores europeos. Ese imaginario, trasladado al viejo continente, juega, aún hoy, un transcendente papel en la visión que tenemos del mundo americano y de forma concreta del mundo cubano. Más aun, veremos cómo ese imaginario se adoptó por aquel mundo y entró a formar parte de la conciencia e identidad nacional isleña.

Establishing a community of practice of researchers, practitioners, policy-makers and communities to sustainably manage environmental health risks in Ecuador

The Sustainably Managing Environmental Health Risk in Ecuador project was launched in 2004 as a partnership linking a large Canadian university with leading Cuban and Mexican institutes to strengthen the capacities of four Ecuadorian universities for leading community-based learning and research in areas as diverse as pesticide poisoning, dengue control, water and sanitation, and disaster preparedness. By 2009, train-the-trainer project initiation involved 27 participatory action research Master’s theses in 15 communities where 1200 community learners participated in the implementation of associated interventions. This led to establishment of innovative Ecuadorian-led master’s and doctoral programs, and a Population Health Observatory on Collective Health, Environment and Society for the Andean region based at the Universidad Andina Simon Bolivar. Building on this network, numerous initiatives were begun, such as an internationally funded research project to strengthen dengue control in the coastal community of Machala, and establishment of a local community eco-health centre focusing on determinants of health near Cuenca. Alliances of academic and non-academic partners from the South and North provide a promising orientation for learning together about ways of addressing negative trends of development. Assessing the impacts and sustainability of such processes, however, requires longer term monitoring of results and related challenges.

Las reformas de Raúl Castro: evaluación de horizontes y contenidos alternativos (Coyuntura)

El artículo analiza las últimas reformas hechas por el gobierno cubano a partir de la estructura del sistema político establecido en ese país y su relación y efectividad con las instituciones, la ciudadanía y actores locales cubanos. Argumenta que los cambios buscan mejorar la crisis económica y gobernabilidad del país, sin concesiones que permitan el establecimiento de nuevos actores políticos. Concluye que los diversos grupos, sociabilidades, redes deben constituir un mínimo de acuerdos y colaboraciones sobre la restitución de derechos a los ciudadanos, así como los modos y plazos para poner fin al monopolio legal y control/represión del Estado.

Determinants of intention to purchase chicken in Italy: the role of consumer risk perception and trust in different information sources

The article investigates how purchasing intentions among a sample of Italian consumers are influenced by different levels of risk perception and their trust in food-safety information provided by different sources such as the food industry, government agencies, or consumers' associations. The assessment of the determinants of intention to purchase was carried out by estimating a causal model for the chicken case in which attitudes, subjective norms, and perceived risk play a major role in determining buyer's behavior. In particular, the role of trust in influencing risk perception is highlighted either as a general construct or as specific constructs targeting food chain, policy actors, and the media. [EconLit citations: Q130, Q190, D120]. (C) 2008 Wiley Periodicals, Inc.

Spectroscopic imaging of arteries and atherosclerotic plaques

Fourier transform infrared (FTIR) spectroscopic imaging using a focal plane array detector has been used to study atherosclerotic arteries with a spatial resolution of 3-4 mum, i.e., at a level that is comparable with cellular dimensions. Such high spatial resolution is made possible using a micro-attenuated total reflection (ATR) germanium objective with a high refractive index and therefore high numerical aperture. This micro-ATR approach has enabled small structures within the vessel wall to be imaged for the first time by FTIR. Structures observed include the elastic lamellae of the tunica media and a heterogeneous distribution of small clusters of cholesterol esters within an atherosclerotic lesion, which may correspond to foam cells. A macro-ATR imaging method was also applied, which involves the use of a diamond macro-ATR accessory. This study of atherosclerosis is presented as an illustrative example of the wider potential of these A TR imaging approaches for cardiovascular medicine and biomedical applications. (C) 2004 Wiley Periodicals, Inc.

Protonation of phenylboronic acid: comparison of G3B3 and G2MP2 methods

G3B3 and G2MP2 calculations using Gaussian 03 have been carried out to investigate the protonation preferences for phenylboronic acid. All nine heavy atoms have been protonated in turn. With both methodologies, the two lowest protonation energies are obtained with the proton located either at the ipso carbon atom or at a hydroxyl oxygen atom. Within the G3B3 formalism, the lowest-energy configuration by 4.3 kcal . mol(-1) is found when the proton is located at the ipso carbon, rather than at the electronegative oxygen atom. In the resulting structure, the phenyl ring has lost a significant amount of aromaticity. By contrast, calculations with G2MP2 show that protonation at the hydroxyl oxygen atom is favored by 7.7 kcal . mol(-1). Calculations using the polarizable continuum model (PCM) solvent method also give preference to protonation at the oxygen atom when water is used as the solvent. The preference for protonation at the ipso carbon found by the more accurate G3B3 method is unexpected and its implications in Suzuki coupling are discussed. (C) 2006 Wiley Periodicals, Inc.

Pervaporation dehydration of isopropyl alcohol with NaY zeolite incorvorated hybrid membranes

With a solution technique, NaY zeolite incorporated, tetraethylorthosilicate-crosslinked poly(vinyl alcohol) membranes were prepared. The resulting membranes were tested for their ability to separate isopropyl alcohol/water mixtures by pervaporation in the temperature range of 30-50 degrees C. The effects of the zeolite content and feed composition on the pervaporation performance of the membranes were investigated. The experimental results demonstrated that both flux and selectivity increased simultaneously with increasing zeolite content in the membranes. This was explained on the basis of the enhancement of hydrophilicity, selective adsorption, and establishment of a molecular sieving action attributed to the creation of pores in the membrane matrix. The membrane containing 15 mass % zeolite exhibited the highest separation selectivity of 3991 with a flux of 5.39 X 10(-2) kg/m(2) h with 10 mass % water in the feed at 30 degrees C. The total flux and flux of water were close to each other for almost all the studied membranes, and this suggested that the membranes could be used effectively to break the azeotropic point of water/isopropyl alcohol mixtures to remove a small amount of water from isopropyl alcohol. From the temperature-dependent diffusion and permeation values, the Arrhenius activation parameters were estimated. The activation energy values obtained for water were significantly lower than those for isopropyl alcohol, and this suggested that the developed membranes had a higher separation efficiency for water/isopropyl alcohol systems. The activation energy values for total permeation and water permeation were found to be almost the same for all the membranes, and this signified that coupled transport was minimal because of the highly selective nature of the membranes. Positive heat of sorption values were observed in all the membranes, and this suggested that Henry's mode of sorption was predominant. (c) 2008 Wiley Periodicals, lnc.