Dunford-Pettis-like Properties of Projective and Natural Tensor Product Spaces

Sin resume

Eficacia de dos programas de prevención del consumo de alcohol en función del tipo de aplicador

Currently, it is still unclear how to translate effectively programs validated in research for use in real-world contexts. Among the efforts being made to identify strategies which optimize the application of these programs in everyday practice are tests of the differential effectiveness of the programs depending on the application agent. Method: this study analyses the effects of two programs on alcohol use and its variables as a function of provider type. Two hundred students from the first year of secondary education were distributed among five experimental conditions: four treatment conditions, in which the two programs were applied by teachers at the school or external psychologists, and a control condition. Results: the results suggest that, for both programs, teachers obtain better outcomes in alcohol use and concern about addiction. Conclusions: it is concluded that teachers are the ideal application agents in terms of efficiency, and we discuss the implications for research and preventive practice.En la actualidad no es claro cómo traducir efectivamente los programas validados en la investigación para su aplicación en contextos reales. Entre los esfuerzos que se han realizado está el de identificar estrategias que optimicen la aplicación de estos programas en la práctica cotidiana que tienen diferente efectividad dependiendo del agente que los aplique. Metodología: este estudio analiza los efectos de dos programas sobre el consumo de alcohol y sus variables en función del aplicador. Doscientos estudiantes de primer año de secundaria se distribuyeron en cinco condiciones experimentales: cuatro en condición de tratamiento, en que se aplicaron dos programas aplicados por profesores de la escuela o psicólogos externos, y un grupo control. Resultados: los hallazgos sugieren que en los dos programas los profesores obtienen mejores resultados sobre el consumo de alcohol y la preocupación por la adicción. Conclusiones: se concluye que los profesores son los agentes aplicadores ideales en términos de eficiencia y discutimos las implicaciones que esto tiene para la práctica investigativa y práctica

Presence of Helicobacter pylori in a Mexican Pre-Columbian Mummy

<p>Abstract</p> <p>Background</p> <p>Recent studies showed that <it>Helicobacter pylori </it>existed in the New World prior to the arrival of Columbus. The purpose of the present study was to detect the presence of <it>Helicobacter pylori </it>in pre-Columbian mummies from Northern Mexico.</p> <p>Methods</p> <p>Six samples were studied (four samples of gastric remains, tongue-soft palate, and brain remained as negative controls) from two of the six naturally mummified corpses studied (adult male and infant male). Samples were taken from tissues suitable for DNA amplification by Polymerase chain reaction (PCR). DNA was extracted and <it>H. pylori </it>detection was carried out by PCR and hybridized with the pHp probe from <it>16S rRNA </it>gene. The purified PCR products were cloned and sequenced in both directions. DNA sequences were analyzed with ALIGN and BLAST software. A second amplification was performed using <it>ureB </it>gene by real-time PCR.</p> <p>Results</p> <p>From four samples of gastric remnant, only two were <it>H. pylori-</it>positive for amplification of a 109 bp DNA fragment; the remaining two were negative, as were the tongue-soft palate and the brain biopsies as well. These PCR products were hybridized with a pHp probe. Nucleotide sequence analysis showed homology with <it>H. pylori </it>in 98 of 99% when compared with the gene bank nucleotide sequence. Only one sample of gastric remnant <it>H. pylori</it>-positive with <it>16S rRNA </it>gene was also positive for <it>ureB </it>gene from <it>H. pylori</it>.</p> <p>Conclusion</p> <p>This data supported infection with <it>H. pylori </it>in Mexican pre-Columbian mummies dating from approximately 1,350 AC.</p

Percutaneous nephrolitotomy in bariatric surgery patients. Is there an increased risk of complications

Indexación: Web of Science; ScieloIntroduction: To report a patient with a history of bariatric surgery and staghorn calculi of the left kidney, who had a colonic perforation after percutaneous renal surgery. Material and Methods: A 38 years old male patient, with a history of gastric bypass, underwent a left percutaneous nephrolithotomy due to staghorn renal calculi. In the procedure, the colon was incidentally perforated during the percutaneous access. Results: The patient developed a sepsis and fecal material appeared surrounding the nephrostomy tube. A transverse colostomy was performed, with improvement of the sepsis and a spontaneous resolution of the nephro-colonic fistula. Conclusion: Is known that bariatric surgery is associated with the novo urinary lithiasis. Besides, there are anatomical changes in between intraabdominal viscera. Radiological studies and a adequate surgical strategy are fundamental to avoid severe surgical complications in kidney stone disease.Objetivo: Presentar el caso de un paciente con antecedente de cirugía bariátrica y litiasis renal coraliforme, el cual presentó una perforación colónica luego de una nefrolitectomía percutánea. Material y Métodos: Paciente hombre de 38 años de edad con antecedente de bypass gástrico. Fue sometido a una nefrolitectomía percutánea por litiasis renal izquierda coraliforme, complicada de una perforación colónica no reconocida en forma precoz. Resultados: El paciente evolucionó con cuadro séptico y presencia de material fecaloídeo en la zona de la nefrostomía, por lo que requirió colostomía transversa, con resolución de la complicación séptica y resolución de la fístula nefrocólica. Conclusión: Es sabido que la cirugía bariátrica se asocia a litogénesis urinaria y cambios anatómicos de las relaciones de los órganos abdominales. El estudio radiológico y la adecuada estrategia quirúrgica evitará complicaciones graves en la cirugía de la litiasis renal.http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-40262012000500010&nrm=is

The use of branch piles to assist in the restoration of degraded semiarid steppes

Desertification is a major environmental problem in arid and semiarid regions. Tree plantation has been commonly employed to foster the recovery of degraded areas. However, this technique is costly, and their outcomes are often uncertain. Therefore, we evaluated an alternative method for the restoration of degraded semiarid steppes that involved the construction of branch piles to attract frugivores as potential seed-dispersing birds, promoting seed rain, and fostering the formation of woody patches. We measured the success of branch piles in terms of the number of bird visits and seed input compared to naturally occurring shrub patches. Generally, frugivorous birds visited branch piles less frequently than shrub patches. Yet, branch piles accumulated seeds of patch-forming shrub species. Seed rain was higher under patches of the dominant shrub Rhamnus lycioides than under branch piles. In contrast, woody patches and branch piles did not differ in seed input of the less abundant Pistacia lentiscus shrub. Our study demonstrates that branch piles are used by frugivorous birds and accumulate seeds of patch-forming shrubs. Branch piles may be a suitable method to promote the expansion of bird-dispersed plant species and restore semiarid wooded steppes. However, their efficiency largely depends on pile persistence and economic cost

Influencia de la comunicación publicitaria en el consumo de alcohol

La literatura científica aduce que a mayor exposición de mensajes publicitarios de bebidas alcohólicas, mayor probabilidad de que estas sean consumidas. Método. La muestra constó de 437 estudiantes universitarios. Los objetivos se centraron en analizar la relación entre mensaje publicitario y consumo. Resultados. Existe relación entre publicidad y consumo, dado que el consumo de los jóvenes coincide con el recuerdo de las campañas en cuanto al tipo de bebida consumida. Conclusiones. Observamos que la publicidad parece ser un instrumento de influencia al consumo de alcohol

Diffusive transport and self-consistent dynamics in coupled maps

The study of diffusion in Hamiltonian systems has been a problem of interest for a number of years. In this paper we explore the influence of self-consistency on the diffusion properties of systems described by coupled symplectic maps. Self-consistency, i.e. the back-influence of the transported quantity on the velocity field of the driving flow, despite of its critical importance, is usually overlooked in the description of realistic systems, for example in plasma physics. We propose a class of self-consistent models consisting of an ensemble of maps globally coupled through a mean field. Depending on the kind of coupling, two different general types of self-consistent maps are considered: maps coupled to the field only through the phase, and fully coupled maps, i.e. through the phase and the amplitude of the external field. The analogies and differences of the diffusion properties of these two kinds of maps are discussed in detail.Comment: 13 pages, 14 figure

Docencia de arquitectura orientada a servicios

Este trabajo presenta los contenidos del curso “Web 2.0: Arquitectura Orientada a Servicios en Java” de la Escuela de Posgrado de la Universidad de Granada. El objetivo del curso es familiarizar al alumno con la programación de ServiciosWeb. Dada la gran variedad de técnicas disponibles para utilizar Arquitectura Orientada a Servicios, se presentan los siguientes temas: utilización de protocolos bien definidos para comunicación y contrato (SOAP y WSDL), creación de Web Services con JAX-WS y orquestación de ServiciosWeb con BPEL. Al final del curso, el alumno será capaz de crear, utilizar y mantener Servicios Web para el desarrollo de aplicaciones interempresariales, utilizando servicios creados o ya disponibles en la web, así como la orquestación lógica de los mismos.SUMMARY: This work presents the contents of the course “Web 2.0: Service Oriented Architecture on Java” from the Graduate School of the University of Granada. The course objective is to familarize students with Web Services programming. Due to the wide variety of available technologies, several subjects are presented: the usage of well-defined protocols to contract and communication (SOAP and WSDL), web services creation using JAX-WS, and service orchestration with BPEL. At the end of the course, students will be capable to create, use and manage Web Services for business applications, using new or available services in the web, and also their logical orchestration.Peer Reviewe