Satisfacción laboral y síndrome de burnout en docentes de nivel primario

Resumen: El trabajo docente no se reduce al dictado de clases, implica la ejecución de varias actividades como son el cuidado y mantenimiento de la escuela, la atención de los alumnos en su diversidad, la confección de materiales didácticos, la realización y presentación de trámites administrativos, la inserción en los programas de capacitación, y el contacto con los padres, con las autoridades y compañeros de trabajo; lo que implica un duro esfuerzo, una significativa carga psíquica en el trabajo. Cuando la motivación y la satisfacción por educar disminuyen, cuando el compromiso profesional y la vocación de enseñar no son suficientes para garantizar un desempeño satisfactorio y sobrellevar las diferentes situaciones de la labor cotidiana, aumenta la probabilidad de que el docente experimente malestar psicofísico y agotamiento. El propósito de este estudio fue evaluar el estado de satisfacción laboral de los docentes y su impacto en las dimensiones del Síndrome de Burnout. Se trabajó con una muestra de 229 profesores de nivel primario, de las provincias de Entre Ríos y Buenos Aires. Los resultados indicaron un efecto significativo de la satisfacción laboral sobre las diversas manifestaciones del síndrome. Los maestros más satisfechos con su trabajo mostraron puntuaciones más bajas de cansancio emocional y valores más elevados en ladimensión realización personal del Maslach Burnout Inventory (MBI).

Trayectorias líricas : del romancero español al tango argentino

Integran este número de la revista ponencias presentadas en Studia Hispanica Medievalia VIII : Actas de las X Jornadas Internacionales de Literatura Española Medieval, 2011, y de Homenaje al Quinto Centenario del Cancionero General de Hernando del Castillo.

O Brasil no cenário internacional : uma peça em mais de mil atos (reflexos do debate parlamentar entre 4 de outubro de 1988 e 31 de dezembro de 2010)

Faz um mapeamento dos atos internacionais (tratados, convenções, convênios, acordos, protocolos, memorandos de entendimento etc.) assinados pela República Federativa do Brasil e encaminhados ao Congresso Nacional para apreciação legislativa, através de Mensagens do Presidente da República, entre a promulgação da Constituição de 1988 e julho de 2010, como um requisito essencial de inserção das normas de Direito Internacional Público no ordenamento jurídico positivo brasileiro. Questiona a possibilidade de inferência da participação parlamentar nesse processo a partir de um quadro de ação parlamentar assim elaborado. Tece, a partir das observações feitas, considerações a respeito do papel que o Congresso Nacional tem desempenhado nesse processo, através da Câmara dos Deputados.

Medidas Provisórias e a relação Executivo x Legislativo : uma visão do sobrestamento de pauta

Verifica o impacto que o sobrestamento de pauta, instituído pela Emenda Constitucional n. 32/2001, concebida para refrear o uso exacerbado de medidas provisórias, ocasionou na agenda do Legislativo. Tendo-se como premissa que a relação entre o Legislativo e o Executivo caracteriza-se pelo sistema presidencialista de coalizão e que as medidas provisórias configuram o principal instrumento utilizado pelo Executivo para controlar a agenda política do País, aborda o instituto das MP desde a sua inserção na Constituição de 1988 até as propostas atuais de modificação para se traçar um histórico do caminho percorrido pelo Parlamento brasileiro na tentativa de conter o abuso do poder legiferante do Executivo e impedir o esvaziamento das competências precípuas do Poder Legislativo. Investiga por que o Legislativo não tem conseguido frear a produção de medidas provisórias, considerando-se que essa é a vontade de seus representantes. Concentra-se no problema do sobrestamento de pauta do Poder Legislativo decorrente da não apreciação de medida provisória em até quarenta e cinco dias contados da sua publicação, como determina o § 6º do art. 62 do atual texto da Constituição Federal.

Emaús, una organización de acción social

[ES] Emaús Bilbao Sociedad Cooperativa, es una entidad de Economía Social y Solidaria para la inserción sociolaboral, dedicada a la gestión integral de residuos sólidos urbanos (RSU), con sede en Bilbao y que desarrolla esta actividad en Bizkaia.

快速Delaunay逐点插入网格生成算法

对插入形心的Delaunay逐点插入算法,提出按单元可插度分组的双向链表组数据结构,避免了对最大可插度单元的搜索。采用了邻接单元搜索、双向链表存储、随机方向搜索、邻接旋转、几何量继承等技术,使算法的计算时间与生成单元数近似呈线性关系,时间复杂度达到O(N1.05),N为生成单元数。算例表明,在一台AMD Athlon3200+(主频2.0 GHz)PC上,该算法的四面体单元生成速度达50 000个/s以上。

Gestores personales de bases de datos de referencias bibliográficas: características y estudio comparativo

[ES] Se estudian las características comunes y específicas de los gestores personales de bases de datos de referencias bibliográficas más utilizados: Reference Manager, EndNote, ProCite, RefWorks y EndNote Web. Los Apartados analizados son: la entrada de datos, el control de autoridades, los comandos de edición global, la personalización de algunos aspectos de las bases de datos, la exportación de las referencias, la visualización de los Registros, la inserción de citas bibliográficas y la generación automática de bibliografías.

Sibilantes tras consonante sonante en euskera: inserción vs. africación, fonética y fonología

[ES] Este artículo trata sobre el proceso fonológico que en euskera convierte en africadas las fricativas sibilantes tras consonante sonante. El análisis de dicho proceso es particularmente adecuado para la discusión de la relación recíproca entre fonética y fonología tal y defendida por la Fonología Natural. Es ese marco teórico, este trabajo estudia la motivación fonética de la fonología; por otro lado, explora las consecuencias perceptivas –tal vez también productivas– de los distintos inventarios fonémicos de cada lengua, comparando el proceso de africación vasco con el más conocido proceso inglés de inserción oclusiva. Se argumenta que la opción terminológica africación vs. inserción podría no ser una cuestión trivial sino el reflejo de alguna diferencia en el procesamiento fonológico de condiciones fonéticas básicamente equivalentes. La optimización de la estructura silábica se presenta como otro posible elemento de la configuración del proceso y como factor que contribuye a la mayor o menor relevancia de éste en lenguas tipológicamente distintas. Se ofrecen en la sección 3 algunos comentarios sobre imágenes espectrográficas como muestra de las observaciones que dieron lugar al trabajo de investigación en curso.

Association analyses of DNA polymorphisms in bovine SREBP-1, LXRα,FADS1 genes with fatty acid composition in Canadian commercial crossbred beef steers

Two previously reported DNA polymorphisms of sterol regulatory element binding transcription factor 1 (SREBP1) and liver X receptor alpha (LXRα) and two DNA polymorphisms of fatty acid desaturase 1 (FADS1) were evaluated for associations with fatty acids in brisket adipose tissue of Canadian cross-bred beef steers. The polymorphism of 84 bp insert/deletion in intron 5 of SREBP1 was significantly associated with the concentration of 9c C17:1 (P=0.013). The G>A single nucleotide polymorphism (SNP) in the exon 4 of LXRα gene was associated with the concentration of 9c, 11t C18:2 (P=0.04), sum of conjugated linoleic acids (CLA) (P=0.025) and 11c C20:1(P=0.042). Two DNA polymorphisms in the promoter region of FADS1, deletion/insertion of ->GTG in rs133053720 and SNP A>G in rs42187276, were significantly associated with concentrations of C17:0 iso, C17:0 ai, total branched chain fatty acids (BFA), 12t C18:1, 13t/14t C18:1, 15t C18:1, and 13c C18:1 (P<0.05). Further studies are needed to validate the associations and to delineate the roles of the gene polymorphisms in determining the fatty acid composition in beef tissues.

The induced flow field by internal solitary wave and its action on cylindrical piles in the stratified ocean

The induced flow fields by internal solitary waves and its actions on cylindrical piles in density stratified ocean with a basic density profile and a basic velocity profile are investigated. Some results, such as the time evolution of flow fields and hydrodynamic forces on the piles are yielded both by theoretical analysis and numerical calculation for general and specific cases. Several kinds of ambient sea conditions of the South China Sea are specified for numerical simulation. Moreover, the effects of relative density difference, depth ratio and wave steepness on maximal total force and total torque are analyzed.

Stimulation discomfort comparison of asynchronous and synchronous methods with multi-field electrodes

Functional Electrical Stimulation (FES) is a technique that consists on applying electrical current pulses to artificially activate motor nerve fibers and produce muscle contractions to achieve functional movements. The main applications of FES are within the rehabilitation field, in which this technique is used to aid recovery or to restore lost motor functions. People that benefit of FES are usually patients with neurological disorders which result in motor dysfunctions; most common patients include stroke and spinal cord injury (SCI). Neuroprosthesis are devices that have their basis in FES technique, and their aim is to bridge interrupted or damaged neural paths between the brain and upper or lower limbs. One of the aims of neuroprosthesis is to artificially generate muscle contractions that produce functional movements, and therefore, assist impaired people by making them able to perform activities of daily living (ADL). FES applies current pulses and stimulates nerve fibers by means of electrodes, which can be either implanted or surface electrodes. Both of them have advantages and disadvantages. Implanted electrodes need open surgery to place them next to the nerve root, so these electrodes carry many disadvantages that are produced by the use of invasive techniques. In return, as the electrodes are attached to the nerve, they make it easier to achieve selective functional movements. On the contrary, surface electrodes are not invasive and are easily attached or detached on the skin. Main disadvantages of surface electrodes are the difficulty of selectively stimulating nerve fibers and uncomfortable feeling perceived by users due to sensory nerves located in the skin. Electrical stimulation surface electrode technology has improved significantly through the years and recently, multi-field electrodes have been suggested. This multi-field or matrix electrode approach brings many advantages to FES; among them it is the possibility of easily applying different stimulation methods and techniques. The main goal of this thesis is therefore, to test two stimulation methods, which are asynchronous and synchronous stimulation, in the upper limb with multi-field electrodes. To this end, a purpose-built wrist torque measuring system and a graphic user interface were developed to measure wrist torque produced with each of the methods and to efficiently carry out the experiments. Then, both methods were tested on 15 healthy subjects and sensitivity results were analyzed for different cases. Results show that there are significant differences between methods regarding sensation in some cases, which can affect effectiveness or success of FES.

Aldaera sintaktikoak aditzaren fokalizazioan

2008ko abenduaren 13-14ean, Baionan Aldaketak, aldaerak, bariazioak euskaran eta euskal testugintzan Nazioarteko Mintegia-ren barruan aurkeztua.

Multi-drug resistance profiles and the genetic features of Acinetobacter baumannii isolates from Bolivia

Introduction: Acinetobacter baumannii is opportunistic in debilitated hospitalised patients. Because information from some South American countries was previously lacking, this study examined the emergence of multi-resistant A. baumannii in three hospitals in Cochabamba, Bolivia, from 2008 to 2009. Methodology: Multiplex PCR was used to identify the main resistance genes in 15 multi-resistant A. baumannii isolates. RT-PCR was used to measure gene expression. The genetic environment of these genes was also analysed by PCR amplification and sequencing. Minimum inhibitory concentrations were determined for key antibiotics and some were determined in the presence of an efflux pump inhibitor, 1-(1-napthylmethyl) piperazine. Results: Fourteen strains were found to be multi-resistant. Each strain was found to have the bla(OXA-58) gene with the ISAba3-like element upstream, responsible for over-expression of the latter and subsequent carbapenem resistance. Similarly, ISAba1, upstream of the bla(ADC) gene caused over-expression of the latter and cephalosporin resistance; mutations in the gyrA(Ser83 to Leu) and parC (Ser-80 to Phe) genes were commensurate with fluoroquinolone resistance. In addition, the adeA, adeB efflux genes were over-expressed. All 15 isolates were positive for at least two aminoglycoside resistance genes. Conclusion: This is one of the first reports analyzing the multi-drug resistance profile of A. baumannii strains isolated in Bolivia and shows that the over-expression of thebla(OXA-58), bla(ADC) and efflux genes together with aminoglycoside modifying enzymes and mutations in DNA topoisomerases are responsible for the multi-resistance of the bacteria and the subsequent difficulty in treating infections caused by them.

Design, Construction and Testing of a Hydraulic Power Take-Off for Wave Energy Converters

This paper presents the construction, mathematical modeling and testing of a scaled universal hydraulic Power Take-Off (PTO) device for Wave Energy Converters (WECs). A specific prototype and test bench were designed and built to carry out the tests. The results obtained from these tests were used to adjust an in-house mathematical model. The PTO was initially designed to be coupled to a scaled wave energy capture device with a low speed and high torque oscillating motion and high power fluctuations. Any Energy Capture Device (ECD) that fulfils these requirements can be coupled to this PTO, provided that its scale is adequately defined depending on the rated power of the full scale prototype. The initial calibration included estimation of the pressure drops in the different components, the pressurization time of the oil inside the hydraulic cylinders and the volumetric efficiency of the complete circuit. Since the overall efficiency measured during the tests ranged from 0.69 to 0.8 and the dynamic performance of the PTO was satisfactory, the results are really promising and it is believed that this solution might prove effective in real devices.

A robust position control for induction machines

ICEM 2010