Los empresarios agrícolas y la contratación de temporeros: el caso de la Plana de Lleida

Este artículo analiza la organización que siguen los empresarios agrícolas ilerdenses para llevar a cabo la contratación de empleados. A través de la realización de una encuesta durante el año 2015 y entrevistas a representantes de organizaciones agrarias antes y después de dicha campaña, se ha recopilado información sobre sus actuaciones. Los resultados reflejan la planificación que siguen estos empresarios para realizar las contrataciones, los criterios que utilizan para decidir que trabajadores finalmente contratan y los perfiles de empleados que prefieren para cada tipo de actividad.This paper analyses how managers perform this enrollment. We did it through a survey during 2015’s crop season and we made interviews to representatives of agrarian organizations before and after that campaign. The results reflects the planning that these entrepreneurs follow to make the hiring, the criteria they use to decide which workers they finally employ and the profiles of employees they prefer for each type of activity

The effect of task difficulty on decision-making: Differences between obsessive–compulsive disorder and non-affective psychosis

The aim was to determine whether there are differences between groups in jumping to conclusions and the number of beads required to make a decision based on task difficulty. An assessment was made of 19 patients with non-affective psychosis, 19 with obsessive–compulsive disorder (OCD), and 19 healthy controls. The Beads Task scale was used in its two versions. Patients with non-affective psychosis jumped to conclusions. There was significant interaction between group and task difficulty. Increased difficulty of the task did not affect the number of beads patients with non-affective psychosis or OCD needed to make their decision. However, healthy controls needed to see more beads before they could make a decision in the hard test than in the easy one. Patients with non-affective psychosis jump to conclusions, but neither this group nor the OCD patients benefit from the changes in task difficulty when making their decisions

Synthesis, characterization and performance of robust poison-resistant ultrathin film yttria stabilized zirconia – nickel anodes for application in solid electrolyte fuel cells

We report on the synthesis of undoped ∼5 μm YSZ-Ni porous thin films prepared by reactive pulsed DC magnetron sputtering at an oblique angle of incidence. Pre-calcination of the amorphous unmodified precursor layers followed by reduction produces a film consisting of uniformly distributed tilted columnar aggregates having extensive three-phase boundaries and favorable gas diffusion characteristics. Similarly prepared films doped with 1.2 at.% Au are also porous and contain highly dispersed gold present as Ni-Au alloy particles whose surfaces are strongly enriched with Au. With hydrogen as fuel, the performance of the undoped thin film anodes is comparable to that of 10–20 times thicker typical commercial anodes. With a 1:1 steam/carbon feed, the un-doped anode cell current rapidly falls to zero after 60 h. In striking contrast, the initial performance of the Au-doped anode is much higher and remains unaffected after 170 h. Under deliberately harsh conditions the performance of the Au-doped anodes decreases progressively, almost certainly due to carbon deposition. Even so, the cell maintains some activity after 3 days operation in dramatic contrast with the un-doped anode, which stops working after only three hours of use. The implications and possible practical application of these findings are discussed.European Union 298300Ministerio de Economía y Competitividad MAT2013‐40852R, 201560E05

The New Plan for the Prevention of School Failure in Catalonia

This paper outlines the development of the Ministry of Education’s Compensatory Education Program focusing on the changes in Catalonia due to the Plan for Language and Social Cohesion. This program was the emblematic result of the reformist policy adopted in 1983 in the field of education. It was, therefore, a hopeful and optimistic discourse aimed at correcting social inequalities and producing higher levels of social justice. Despite the inherent weaknesses of this approach, the Compensatory Education Program has enabled carrying out interventions in particularly complex areas and, in addition, the range of activities has been very broad and ambitious. Currently, its disappearance and transformation poses a challenge to the government to address the education of ethnic minorities at risk of social exclusion as well as actions to promote school success, to reduce school failure (scheduled for 2018). The development of Education’s Compensatory Education Program will be useful to students of foreign origin in order to improve their academic opportunities and of continuing in the education system

Influence of irrigation conditions in the germination of plasma treated Nasturtium seeds

Plasma treatments had emerged as a useful technique to improve seed germination. In this work we investigate the influence of different irrigation conditions and plasma treatments on the germination of nasturtium seeds. During plasma treatment, seeds experience a progressive weight loss as a function of treatment time that has been associated to water release, a process that is more pronounced after longer plasma treatment times. Seeds treated for short times (<30 s) are able to germinate more efficiently than untreated specimen under hydric stress (drought conditions), while plasma treatments for longer times (up to 300 s) impaired germination independently on irrigation conditions. Characterization analysis of plasma treated seeds by FTIR-ATR, SEM/EDX and XPS showed that plasma treatment affected the chemical state of pericarp while, simultaneously, induced a considerable increase in the seeds water uptake capacity. The decrease in germination efficiency found after plasma treatment for long times, or for short times under optimum irrigation conditions, has been attributed to that the excess of water accumulated in the pericarp hampers the diffusion up to the embryo of other agents like oxygen which are deemed essential for germination.España FEDER y MINECO MINECO (projects MAT2013-40852-R, MAT2016-79866-R, MINECOCSIC 201560E055)España, RECUPERA 2020 y Junta de Andalucía project P12-2265 M

Design patterns for teaching type checking in a compiler construction course

A course in compiler construction seeks to develop an understanding of well-defined fundamental theory and typically involves the production of a language processor. In a graduate degree in software engineering, the development of a compiler contributes significantly to the developer's comprehension of the practical application of theoretical concepts. Different formal notations are commonly used to define type systems, and some of them are used to teach the semantic analysis phase of language processing. In the traditional approach, attribute grammars are probably the most widely used ones. This paper shows how object-oriented design patterns represented in unified modeling language (UML) can be used to both teach type systems and develop the semantic analysis phase of a compiler. The main benefit of this approach is two-fold: better comprehension of theoretical concepts because of the use of notations known by the students (UML diagrams), and improvement of software engineering skills for the development of a complete language processor

Cropping systems for maize and beans in micro-watersheds under rainfed conditions

Siembras en micro-cuencas tipo "W" fueron evaluadas para la producción de maí­z y frijol bajo condiciones de secano. En suelo de tipo fluvisol, se formaron micro-cuencas con pendiente cero, a 1.6 m de separación y 0.4 m de altura. Los tratamientos fueron: siembra convencional en surcos a 0.80 m (SC), siembra en micro-cuencas (SM), sembrando una hilera del cultivo al fondo de las micro-cuencas y otra hilera en el borde, SM con arreglo topológico (SMT), sembrando maí­z en el fondo y frijol en el borde de las micro-cuencas y SM sembrando una hilera de maí­z en cada pendiente de las micro-cuencas (SMP). Se empleó un diseño experimental de bloques al azar con cuatro réplicas. La precipitación pluvial fue 398, 676 y 397 mm distribuidos de junio a septiembre de 2006, 2007 y 2008, respectivamente. En 2006, la producción en SM fue superior a SC (P0.05) y SMT superó a SC en maí­z grano y forraje con 38 y 46 % para 2007 y 34 y 39 % en 2008. SMP superó a SC (PIn the present study, rainfed cropping systems for maize and beans were evaluated in "W" type micro-watersheds. In a fluvisol soil, micro-watersheds with zero slopes were built at 1.6 m distance and 0.4 m high. Treatments were: conventional planting in furrows at 0.80 m (CP), planting in micro-watersheds (MW), with a row at one end and another at the edge, MW with a topological arrangement (MWT), with maize at the end and beans at the edge and MW planting maize in each slope (MWP). A completely randomized block experimental design with four replications was used. Rainfall at the experimental site was 398, 676 and 397 mm between July and September in 2006, 2007 and 2008, respectively. In 2006 MW output was greater than CP (P0.05) and MWT maize yield improved on CP by 38 and 46 % in 2007 and by 34 and 39 % in 2008, in grain and forage, respectively, while MWP produced more maize forage (18 %) and grain (27 %) than CP (

Ruta Provincial Nº 33 - Cuesta del Obispo

El objetivo principal de este trabajo es realizar el proyecto que mejore la situación del camino actual, aplicando todos los conocimientos y las herramientas adquiridos a lo largo de la carrera. Para eso, lo dotamos de una infraestructura con las condiciones adecuadas, contemplando las modificaciones de los radios de curva, el diseño de un paquete estructural resistente, como también la colocación de muros de contención y bermas, para así brindar mayor confort y sobre todo seguridad a la gente que lo transita. La idea es que, con la ruta planteada en este proyecto, siendo la misma una ruta escénica, la personas se lleven una experiencia agradable, sintiéndose seguras en todo momento. El alcance del proyecto va desde el modelado digital del camino hasta el impacto ambiental de la carretera...Fil: Merani, Celina. Universidad Católica de Salta. Facultad de Ingeniería; Argentina.Fil: Haro Rodríguez, Juan Alejo. Universidad Católica de Salta. Facultad de Ingeniería; Argentina.Fil: Escotorin, Alejandro Agustín. Universidad Católica de Salta. Facultad de Ingeniería; Argentina

Comportamiento de la tensión arterial en un barrio del municipio Cárdenas. Estado Tachira. Venezuela.

Se realizó un estudio observacional descriptivo de corte transversal con el objetivo de determinar el comportamiento de las cifras de tensión arterial y su distribución en personas mayores de 60 años, barrio Monseñor Briceño, municipio Cárdenas, Estado Táchira, Venezuela. En el período de enero del 2006 a febrero del 2007.  El universo de estudio lo constituyeron 152 personas. Las variables descriptivas se expresaron en porcentajes. Se hizo el cálculo de la media para las variables de presión arterial normal y prehipertensión por grupo de edades y sexo.  Se observó 29.61 % con cifras de prehipertensión e hipertensión arterial (58.55 %), predominó el estadio I (36.84 %). Predominó el sexo femenino, el grupo de edad de 70 a 74 años, el color de la piel blanco y la hipertensión arterial sistodiastólica.  Palabras clave: Tensión arterial, hipertensión Arterial, prehipertensión