Micronúcleos em células do colo uterino em mulheres HIV+ segundo sua condição de imunidade

OBJETIVO: investigar a micronucleação (MN) em células esfoliadas do colo uterino de mulheres HIV+ observando as condições de imunidade aferidas pelos níveis de linfócitos CD4+ e da carga viral para o HIV (CV). MÉTODOS: foram obtidas coletas citológicas da junção escamocolunar de 23 pacientes HIV+ de Ambulatório de DST/AIDS. O grupo controle foi composto por mulheres assintomáticas do Ambulatório de Prevenção de Câncer Ginecológico do mesmo serviço. O material foi submetido a processamento citológico para leitura em microscopia de luz, com objetiva de imersão em 2.000 células por paciente. Para avaliação da condição imunitária das pacientes HIV+ investigamos os níveis de linfócitos CD4+ e CV. A análise estatística dos resultados se fez com os testes do Χ2 e Kolmogorov-Smirnov. RESULTADOS: vinte e três pacientes compuseram o grupo de mulheres HIV+ e 19 formaram o grupo controle. Em todas as pacientes HIV+ e em 84,2% do grupo controle detectamos MN. Dezessete pacientes HIV+ (73,9%) tiveram mais de 7 MN. No grupo controle tivemos apenas 1 caso (5,2%) com mais de 7 MN. Houve tendência na associação de maiores quantidades de MN em mulheres com baixos níveis de linfócitos CD4+ e maiores níveis de CV, sem caracterizar correlação estatística. CONCLUSÕES: pacientes HIV+ em fase de AIDS têm maior ocorrência de MN que o grupo controle e, também, a frequência com que são detectados MN parece estar associada a piores condições clínicas da imunossupressão.

Thermodynamic properties of water sorption of jackfruit (Artocarpus heterophyllus Lam.) as a function of moisture content

The Jackfruit tree is one of the most significant trees in tropical home gardens and perhaps the most widespread and useful tree in the important genus Artocarpus. The fruit is susceptible to mechanical and biological damage in the mature state, and some people find the aroma of the fruit objectionable, particularly in confined spaces. The dehydration process could be an alternative for the exploitation of this product, and the relationship between moisture content and water activity provides useful information for its processing and storage. The aim of this study was to determine the thermodynamic properties of the water sorption of jackfruit (Artocarpus heterophyllus Lam.) as a function of moisture content. Desorption isotherms of the different parts of the jackfruit (pulp, peduncle, mesocarp, peel, and seed) were determined at four different temperatures (313.15, 323.15, 333.15, and 343.15 K) in a water activity range of 0.02-0.753 using the static gravimetric method. Theoretical and empirical models were used to model the desorption isotherms. An analytical solution of the Clausius-Clapeyron equation was proposed to calculate the isosteric heat of sorption, the differential entropy, and Gibbs' free energy using the Guggenhein-Anderson-de Boer and Oswin models considering the effect of temperature on the hygroscopic equilibrium.

Study of the enthalpy-entropy mechanism from water sorption of orange seeds (C. sinensis cv. Brazilian) for the use of agro-industrial residues as a possible source of vegetable oil production

Orange seeds are a promising agroindustry-waste which can be implemented in the extraction and production of vegetable oil. The relationship between moisture content and water activity provides useful information for the processing and storage of this waste item. The aim of this study was to determine the mechanism of water sorption enthalpy-entropy of orange seeds (C. sinensis cv. Brazilians) according to the moisture content. Therefore, desorption isotherms were determined at five different temperature (30, 40, 50, 60, and 70 ºC) under a wide range of moisture content (0.005-0.057 kg kg-1 d.b.) and water activity (0.02-0.756). Theoretical and empirical models were used for modeling the desorption isotherms. An analytical solution of the Clausius-Clapeyron equation was proposed to compute the isosteric heat of sorption, the differential entropy, and Gibbs free energy using the Oswin model when the effect of temperature on the hygroscopic equilibrium was considered.

Seminarios Talleres y Foros

Archivo Fotográfico

El día de la Tierra

Archivo Fotográfico

Prevalencia de traumatismos orofaciales en los jugadores de futbol americano pertenecientes en la liga de futbol americano de Monterrey, y la información que se tiene en cuanto al uso de los protectores bucales para su prevención.

Tesis (Maestría en Ciencias Odontológicas con Orientación en Odontopediatría) UANL, 2011.

Propuesta metodológica para el análisis de puentes vehiculares curvos formados por trabes de acero y losas de concreto.

Tesis (Maestría en Ciencias con Especialidad en Ingeniería Estructural) UANL, 2012.

Manual de Mecánica industrial con aplicación a varias máquinas

UANL

Topological magnetic irreversibility in superconducting Pb samples of various shapes

The magnetic-field dependence of the magnetization of cylinders, disks, and spheres of pure type-I superconducting lead was investigated by means of isothermal measurements of first magnetization curves and hysteresis cycles. Depending on the geometry of the sample and the direction and intensity of the applied magnetic field, the intermediate state exhibits different irreversible features that become particularly highlighted in minor hysteresis cycles. The irreversibility is noticeably observed in cylinders and disks only when the magnetic field is parallel to the axis of revolution and is very subtle in spheres. When the magnetic field decreases from the normal state, the irreversibility appears at a temperature-dependent value whose distance to the thermodynamic critical field depends on the sample geometry. The irreversible features in the disks are altered when they are submitted to an annealing process. These results agree well with very recent high-resolution magneto-optical experiments in similar materials that were interpreted in terms of transitions between different topological structures for the flux configuration in the intermediate state. A discussion of the relative role of geometrical barriers for flux entry and exit and pinning effects as responsible for the magnetic irreversibility is given.

Colombia: compromise or containment?

The design, reformulation, and final signing of Plan Colombia by the then US President, Bill Clinton, on the 13 July 2000 initiated in a new era of the US State´s involvement in supposedly sovereign-territorial issues of Colombian politics. The implementation of Plan Colombia there-on-after brought about a major realignment of political-military scales and terrains of conflict that have renewed discourses concerning the contemporary imperialist interests of key US-based but transnationally-projected social forces, leading to arguments that stress the invigorated geo-political dimension of present-day strategies of capitalist accumulation. With the election of Álvaro Uribe Vélez as Colombian President in May 2002 and his pledge to strengthen the national military campaign aganist the region´s longest-surviving insurgency guerrilla group, Las FARC-EP, as well as other guerrilla factions, combined with a new focus on establishing the State project of “Democratic Security”; the military realm of governance and attempts to ensure property security and expanding capitalist investment have attained precedence in Colombia´s national political domains. This working paper examines the interrelated nature of Plan Colombia -as a binational and indeed regional security strategy- and Uribe´s Democratic Security project as a means of showing the manner in which they have worked to pave the way for the implementation of a new “total market” regime of accumulation, based on large-scale agro-industrial investment which is accelerated through processes of accumulation via dispossession. As such, the political and social reconfigurations involved manifest the multifarious scales of governance that become intertwined in incorporating neoliberalism in specific regions of the world economy. Furthermore, the militarisation-securitisation of such policies also illustrate the explicit contradictions of neoliberalism in a peripheral context, where coercion seems to prevail, something which leads to a profound questioning of the extent to which neoliberalism can be thought of as a hegemonic politico-economic project.

Diagnóstico a los jóvenes emprendedores.

Se presenta experiencia educativa que introduce una asignatura en el currículo de creación de empresas para fomentar el espíritu empresarial entre el alumnado. Se realiza en el IES Velad Al Hamar en Vélez Rubio, Almería. Los objetivos son: construir aprendizajes significativos; partir del nivel del alumnado; proporcionar actividades que faciliten el conocimiento y las posibilidades de utilización de las ofertas, espacios y actividades de su comarca; incorporar el diálogo como elemento fundamental de aprendizaje; fomentar y desarrollar aptitudes de confianza y responsabilidad hacia los demás; fomentar y desarrollar aptitudes de compañerismo y convivencia hacia los demás; realizar con esta actividad una evaluación inicial de éstos para el taller de empresas; fomentar el espíritu empresarial de nuestro alumnado dentro y fuera de la comarca; participar en actividades de grupo con objetivos comunes. La metodología está basada en el descubrimiento guiado.

La biblioteca escolar, un recurso educativo.

Se presenta memoria final de proyecto educativo que promueve la creación de una biblioteca escolar integrándola en la vida educativa del centro. Se realiza en el CEIP Maestro Genaro Rincón en la Caleta de Vélez, Málaga. Los objetivos son: ampliar el número de puestos de acceso a la informática dentro de las instalaciones bibliotecarias; ampliar el espacio real de la misma, pues es una realidad del 'hándicap' que supone la realización de algunas actividades por el tema del espacio; hacer una programación para el curso de diferentes temas a trabajar desde y en la biblioteca. El proceso consta de varias fases: trabajos de formación de usuarios; trabajos de investigación y documentación; animación a la lectura y la escritura.

Materiales curriculares de apoyo del área de educación física.

A partir del enfoque teórico en el que se sustenta el curriculum, se ofrecen una serie de orientaciones didácticas, ejemplificaciones prácticas, actividades específicas y los contenidos del área de Educación Física, asi como una bibliografía comentada.

Se abre el telón de la mano de Lorca.

Este es el tercero de los proyectos literarios que realizan los IES Poeta Julián Andújar (Santomera - Murcia) y de Manuel Tárraga Escribano (San Pedro del Pinatar - Murcia) coordinados por los profesores de los departamentos de lengua castellana y literatura y que han cubierto los géneros litararios narrativo, descriptivo, epistolar o periódistico y dramático, en esta ocasión de la mano de Lorca.

Informe sobre detección de necesidades de formación : zona formativa 2 : Campo de Cartagena, Mar Menor.

Resultados del trabajo realizado por la Comisión Territorial de Formación Profesional en el que se detectan las necesidades formativas en los municipios de las comarcas del Campo de Cartagena y Mar Menor; zonas de influencia de esta Comisión. El objetivo de este trabajo es dar respuesta a la demanda de recursos humanos por parte del sistema productivo, proporcionando al sistema formativo las bases para redefinir y actualizar de forma constante tanto el conjunto de perfiles profesionales presentes como los que se puedan detectar en el futuro. En este informe se estudia la situación de cuatro escenarios relevantes: población, mercado laboral, sistema productivo y oferta formativa. Para ello se han analizado las siguientes fuentes de información: matriz DAFO; encuesta realizada por el Observatorio Regional de Empleo sobre necesidades formativas y ocupacionales; análisis de las principales variables socioeconómicas de la zona formativa y, por último, el estudio de la oferta formativa, tanto de formación profesional reglada, como ocupacional.