496 resultados para Serna
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A solid state formulation of Beauveria bassiana (Balsamo) Vuillemin has been developed for biological control of the Red Palm Weevil (RPW), Rhynchophorus ferrugineus (Olivier, 1790). Two kinds of bioassays (dry conidia and dipping) using 10 isolates from several coleopterans in Mediterranean environments, identified 2 RPW derived isolates (193 and 203) as most pathogenic to RPW larvae and adults (zero survival within first 4–5 d for dry conidia, and 14 and 23 d for dipping bioassays). Isolate 203 (5.1 × 108 ± 1.9 × 108 conidia g-1) was formulated with fragmented date seed into solid granules and tested in palms infested with RPW under semi-field conditions in Feb, Apr/May and Jun of both 2007 and 2008. Beauveria bassiana significantly reduced RPW adult survival with respect to controls in May 2007 and in the Apr/Jun 2008 experiments. Total RPW adult mortality was achieved within 30 days for all B. bassiana treatments, and was associated with increasing numbers of insects with signs of mycosis in 2008 experiments. Beauveria bassiana formulation reduced RPW multiplication in artificially infested palms compared to controls, and a positive correlation between numbers of larvae and time post-infestation was recorded. The suppression of RPW adult populations by B. bassiana persisted for at least 3 months under semi-field conditions. The Beauveria bassiana solid formulation, which induces great adult mortality and persistence in the field, could be applied as a preventive as well as a curative treatment for the integrated management of RPW.
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Background: Gender inequalities in the exposure to work-related psychosocial hazards are well established. However, little is known about how welfare state regimes influence these inequalities. Objectives: To examine the relationship between welfare state regimes and gender inequalities in the exposure to work-related psychosocial hazards in Europe, considering occupational social class. Methods: We used a sample of 27, 465 workers from 28 European countries. Dependent variables were high strain, iso-strain, and effort-reward imbalance, and the independent was gender. We calculated the prevalence and prevalence ratio separately for each welfare state regime and occupational social class, using multivariate logistic regression models. Results: More female than male managers/professionals were exposed to: high strain, iso-strain, and effort–reward imbalance in Scandinavian [adjusted prevalence ratio (aPR) = 2·26; 95% confidence interval (95% CI): 1·87–2·75; 2·12: 1·72–2·61; 1·41: 1·15–1·74; respectively] and Continental regimes (1·43: 1·23–1·54; 1·51: 1·23–1·84; 1·40: 1·17–1·67); and to high strain and iso-strain in Anglo-Saxon (1·92: 1·40–2·63; 1·85: 1·30–2·64; respectively), Southern (1·43: 1·14–1·79; 1·60: 1·18–2·18), and Eastern regimes (1·56: 1·35–1·81; 1·53: 1·28–1·83). Conclusion: Gender inequalities in the exposure to work-related psychosocial hazards were not lower in those welfare state regimes with higher levels of universal social protection policies.
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Desde 2008, Unicómic, a través de las Jornadas de Cómic de la Universidad de Alicante (
Control and Guidance of Low-Cost Robots via Gesture Perception for Monitoring Activities in the Home
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This paper describes the development of a low-cost mini-robot that is controlled by visual gestures. The prototype allows a person with disabilities to perform visual inspections indoors and in domestic spaces. Such a device could be used as the operator's eyes obviating the need for him to move about. The robot is equipped with a motorised webcam that is also controlled by visual gestures. This camera is used to monitor tasks in the home using the mini-robot while the operator remains quiet and motionless. The prototype was evaluated through several experiments testing the ability to use the mini-robot’s kinematics and communication systems to make it follow certain paths. The mini-robot can be programmed with specific orders and can be tele-operated by means of 3D hand gestures to enable the operator to perform movements and monitor tasks from a distance.
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Actualmente, la sociedad denuncia la cada vez más acuciante desidia lectora en los estudiantes de Educación Secundaria. Es habitual escuchar que las causas de la misma se encuentran en las horas que los adolescentes dedican a la televisión, a Internet y a los videojuegos. Lejos de alimentar el rechazo a estos soportes lúdicos, este estudio se plantea que se han convertido en una parte fundamental de la cultura de los jóvenes y que, además, no solo no disuaden de la lectura, sino que están relacionados con ella y, en muchísimos casos, dependen de la misma para su propio desarrollo. No es posible imaginar un RPG (Role-Playing Game), una aventura gráfica o una visual novel sin texto escrito y es indudable que quienes emplean estos soportes están leyendo continuamente. Se plantea, pues, la posibilidad de emplear los videojuegos en el área de Didáctica de la Lengua y la Literatura como elementos viables para el desarrollo de la competencia lectoliteraria en los alumnos de Educación Secundaria, gracias a su papel como elementos transmedia y su fácil inclusión en las constelaciones literarias de cada uno de los alumnos.
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En este artículo se describe el trabajo realizado por la red de investigación en docencia universitaria denominada “Docencia semipresencial en el Máster en Ingeniería Informática” y que ha pretendido trabajar en las diferentes asignaturas del Máster en Ingeniería Informática de la Universidad de Alicante con el fin de dotarlas de un carácter semipresencial de una forma coordinada e integrada. Se ha creado un grupo de trabajo dentro de la comisión académica del máster y se ha impulsado una colaboración estrecha entre los responsables de todas las asignaturas del Máster en Ingeniería Informática a la hora de usar todos los mecanismos necesarios para dotar a las respectivas asignaturas del carácter semipresencial. Ha sido muy importante el apoyo que se ha tenido del ICE en este sentido, por ejemplo mediante la solicitud y realización de un curso específico sobre bLearning.
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Four letters containing news of Royalist Army officers, including Vice Roy José de la Serna, arriving in Rio de Janeiro after their defeat at the Battle of Ayacucho. Raguet also writes of the public reaction to Bolívar’s victory.
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At head of title: Miguel de Cervantes Saavedra.
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Mode of access: Internet.
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Published in fascicles between 1892 and 1899.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Contiene: Discurso de ingreso de José Zaragoza, con contestación de Luis López Ballesteros. Discurso de Felipe Canga Argüelles, con contestación de Antonio Cavanilles. Discurso de Salustiano de Olózaga, con contestación de Francisco Martínez de la Rosa. Discurso de Modesto Lafuente, contestación de Antonio Cavanilles. Discurso de Evaristo San Miguel, contestación del barón de la Joyosa. Discurso del Duque de Rivas, contestación de Francisco Martínez de la Rosa. Discurso de Manuel de Seijas Lozano, contestación del marqués de Pidal. Discurso de Aureliano Pernández-Guerra y Orbe, contestación de José Amador de los Rios. Discurso de Manuel Colmeiro, contestación de Antonio Cavanilles. Discurso de Cayetano Rosell, contestación de Antonio Benavides. Discurso de Juan de Cueto, contestación de Aureliano Fernández-Guerra y Orbe. Discurso de Carlos Ramón Fort, contestación de José Amador de los Rios. Discurso de Pedro Gómez de la Serna, contestación de Modesto Lafuente.