La evolución del arte fantástico en México : Daniel Lezama

Es importante para la historia del arte mexicano considerar la posibilidad de una continuidad del arte fantástico, desde José Guadalupe Posada hasta la pintura figurativa de fin del siglo XX y comienzos de XXI. Mi propuesta se basa en el libro de la historiadora Ida Rodríguez Prampolini, El surrealismo y el arte fantástico de México, escrito en 1969. Para una definición más amplia e incluyente recurro a la tesis literaria del escritor mexicano Omar Nieto Arroyo, publicada en 2015. Desde esta lejanía podremos ver claramente el hilo conductor de la producción fantástica mexicana, y por ende lo más importante: la estupenda maleabilidad del género para mostrar todo tipo de conceptos. Como un ejemplo del arte fantástico de México en la actualidad presento la obra del pintor Daniel Lezama.It is important for the history of Mexican art to consider the possibility of a continuity in fantastic art, from José Guadalupe Posada to the figurative painting of the end of the twentieth and beginning of the twenty-first century. My proposal is based on the historian Ida Rodríguez Prampolini's book El surrealismo y el arte fantástico de México [Surrealism and fantastic art in Mexico], written in 1969. For a broader and more inclusive definition I make use of Omar Nieto Arroyo's literary thesis published in 2015. From this distance we will be able to see clearly the thread unifying Mexican production of the fantastic, and thus what is most important: the wonderful malleability of the genre to show all manner of conceits. I use Daniel Lezama as an example of contemporary Mexican art

Scientific Workflow Scheduling for Cloud Computing Environments

The scheduling of workflow applications consists of assigning their tasks to computer resources to fulfill a final goal such as minimizing total workflow execution time. For this reason, workflow scheduling plays a crucial role in efficiently running experiments. Workflows often have many discrete tasks and the number of different task distributions possible and consequent time required to evaluate each configuration quickly becomes prohibitively large. A proper solution to the scheduling problem requires the analysis of tasks and resources, production of an accurate environment model and, most importantly, the adaptation of optimization techniques. This study is a major step toward solving the scheduling problem by not only addressing these issues but also optimizing the runtime and reducing monetary cost, two of the most important variables. This study proposes three scheduling algorithms capable of answering key issues to solve the scheduling problem. Firstly, it unveils BaRRS, a scheduling solution that exploits parallelism and optimizes runtime and monetary cost. Secondly, it proposes GA-ETI, a scheduler capable of returning the number of resources that a given workflow requires for execution. Finally, it describes PSO-DS, a scheduler based on particle swarm optimization to efficiently schedule large workflows. To test the algorithms, five well-known benchmarks are selected that represent different scientific applications. The experiments found the novel algorithms solutions substantially improve efficiency, reducing makespan by 11% to 78%. The proposed frameworks open a path for building a complete system that encompasses the capabilities of a workflow manager, scheduler, and a cloud resource broker in order to offer scientists a single tool to run computationally intensive applications

Social and biological reproduction of lower-income groups on the meseta central in costa rica

This thesis examines the social and biological reproduction of households in the sectores populares, ie low income groups, both rural and urban, in the Meseta Central, yields specific outcomes at household level: the social formation based, originally, on smallholder coffee also depends on unusually successful domestic labour. Only multidisciplinary team work could adequately evaluate reproduction at the household level and establish the crucial role of the household in the wider economic system, as well as the role of women in maintaining diverse forms of subordination. The standard of living of the groups studied was estimated from the nutritional status of the children as a basic indicator of wellbeing; explanations of this status were sought in multivariate analysis of biological, economic, and social factors. Unexpectedly, the explanatory power of such variables such as income proved weak, the explanation appearing rather to lie with the less quantifiable social factors which rendered domestic labour more or less effective. Surveys and analysis, 1981-1984, sought to establish household survival strategies; diversified household enterprise proved of great importance in a survival constantly endangered by the insecurity of temporary, part-time and seasonal work so familiar in the Costa Rican economy as a whole. The household itself, as a flexible social organisation, seems one of the best resources for livelihood in the sectores populares, along with the ‘peasant' tradition of unpaid female and child labour. Proletarianisation remains incomplete. The economic categories of traditional Marxism prove inadequate to explain the gender subordination which characterises male female relations in countries of markedly uneven development, such as Costa Rica

Three Generations in the Fermionic Construction

We obtain three generation SU(3)_c X SU(2)_L X U(1)_Y string models in all of the exactly solvable (0,2) constructions sampled by fermionization. None of these examples, including those that are symmetric abelian orbifolds, rely on the Z_2 X Z_2 orbifold underlying the NAHE basis. We present the first known three generation models for which the hypercharge normalization, k_1, takes values smaller than that obtained from an SU(5) embedding, thus lowering the effective gauge coupling unification scale. All of the models contain fractional electrically charged and vectorlike exotic matter that could survive in the light spectrum.Comment: harvmac, 51 page

Nivel de conocimiento sobre analgésicos y antiinflamatorios orales en los estudiantes de odontología de una universidad de Chiclayo, 2022

El dolor se define como una percepción molesta y aflictiva de una parte del cuerpo por causa interior o exterior según la Real Academia Española y según la International Asociation for the Study of pain lo define como una experiencia sensorial o emocional desagradable, (1) por lo que se requiere la prescripción de analgésicos y antiinflamatorios esteroideos para controlar el dolor. En el día a día el cirujano dentista y estudiantes se enfrentan a diversas causas, siendo prescritos los Analgésicos antiinflamatorios (AINES) como primera elección. (2)(3) Es por eso que el objetivo de esta investigación es determinar el nivel de conocimiento sobre analgésicos y antiinflamatorios en estudiantes de odontología de una universidad particular de Chiclayo. Materiales y métodos: se evalúo a 59 estudiantes del 5° y 6° año académico de la escuela de odontología. Mediante una encuesta virtual realizada por el investigador y validado por juicio de expertos especialistas. Resultados: esta investigación nos da como resultado que los alumnos de una universidad de Chiclayo teniendo un nivel de conocimiento regular con un 67.8% según sexo predomino el sexo masculino con 67.8% y según año académico predominaron los estudiantes de 5to año académico con 71.5%. Conclusiones: Se concluyó que los estudiantes de 5° año académico presentaron un predominio sobre los alumnos de 6° año académico, así como los estudiantes del sexo masculino vs las de sexo femenino, el cual se les sugiere tomar diferentes cursos de actualización, conferencias a estudiantes y actualizaciones

Chargino Production at LEP2 in a Supergravity Model

In the framework of a particular supergravity model which provides a natural solution to the $\mu$--problem we show how the discovery of a chargino at LEP2 and the measurement of its mass and production cross--section, together with the measurement of the mass of the lightest neutralino, would determine the entire Higgs and SUSY spectrum. We give detailed predictions for the Higgs and SUSY spectrum as a function of the chargino production cross--section, for constant values of the lightest chargino and gluino masses.Comment: 11 pages, latex, 4 figures uufile

Electric Dipole Moment Constraints on Phases in the Constrained MSSM

We consider constraints on \cp-violating phases in the Constrained Minimal Supersymmetric Standard Model. We find that by combining cosmological limits on gaugino masses with experimental bounds on the neutron and electron electric dipole moments, we can constrain the phase of the Higgs mixing mass $\mu$ to be $|\theta_\mu| < \pi/10$, independent of choices of the other mass parameters in the model. The other \cp-violating phase $\theta_A$ is essentially unconstrained.Comment: 10 pages in LaTeX + 3 postscript figures, uses epsf.st

Experimental evaluation of IEEE 802.15.4/ZigBee for multi-patient ECG monitoring

IEEE 802.15.4/ZigBee wireless sensor networks (WSNs) are a promising alternative to cabled systems for patient monitoring in hospitals. Some areas where monitoring systems based on WSNs can be successfuly used are ambulatory, waiting and triage rooms, post-op, and emergency rooms. The low power and small size ZigBee devices have the ability to form self-configuring networks that can extend themselves through a hospital wing or floor. Using spatially distributed networks, it is possible to cover an extended area and serve several patients. However, the low data rate protocols provided by IEEE 802.15.4 poses several challenges, mainly because its protocols were primarily designed to operate in low traffic load scenarios but some vital signs sensors generate a large volume of data. This work presents an experimental evaluation of the performance of multi-hop ZigBee networks comprised of several nodes that carry the traffic of wearable electrocardiogram (ECG) sensors. The results indicate that star networks can relay 100% of the traffic generated by at least 12 ECG nodes. In tree topologies, the increase of the network traffic load reduces the performance but even these networks can reliably relay the traffic of a considerable number of ECG nodes.Fundação para a Ciência e a Tecnologia (FCT)Grupo AMI – Assistência Médica Integral (Casa de Saúde Guimarães, SA