Terrorismo de estado : a Argentina de 1976 a 1983

Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciencias Juridica

LLUVIA DE POLEN DE LA CIUDAD DE OAXACA, MÉXICO

Pollen rain from Oaxaca city and its surroundings was analyzed in order to determine the airborne plant taxa. There were established11 collect sites: three parks in the city andeight localities in the outskirts. All sampleswere acetolyzed and observed under opticalmicroscope. The pollen spectra for eachplace were obtained and there were appliedclassification and ordering methods. A totalof 39 pollen types were recognized, nine ofthem were identified to family level, 26 togenus and four to species level. The pollenfrom Pinus, Alnus, Quercus and Cupressus genus as well as families Asteraceae,Poaceae and Amaranthaceae-Chenopodiaceae type were found in all samples. Pollengrains from the arboreal stratum were thebest represented. Seventeen pollen types arepotentially allergenic.Con el propósito de determinar los tipospolínicos presentes en la atmósfera de laciudad de Oaxaca y sus alrededores, seanalizó la lluvia de polen de este lugar. Seestablecieron 11 sitios de colecta: tres parques de la ciudad y ocho localidades de losalrededores. Las muestras se acetolizarony se observaron al microscopio óptico. Seobtuvieron los espectros polínicos para cadasitio de colecta y se aplicaron métodos declasificación y ordenación. Se reconocieron39 tipos polínicos; nueve se determinarona nivel de familia, 26 a nivel de género ycuatro a nivel de especie. El polen de losgéneros Pinus, Alnus, Quercus y Cupressus, así como el de las familias Asteraceae,Poaceae y el tipo Amaranthaceae-Chenopodiaceae, se encontró en todas las muestras.El estrato mejor representado fue el arbóreo.Del total de tipos polínicos hallados, 17 sonpotencialmente alergénico

Efectividad del coaching grupal sobre el desarrollo de la autorregulación del aprendizaje en estudiantes de ingeniería

Los tiempos actuales, con avances aceleradamente cambiantes en la información, la ciencia y la tecnología, exigen de los profesionistas en ingeniería el desarrollo de competencias que les permitan actuar en forma eficiente y pertinente en su campo de trabajo. La competencia de la autorregulación del aprendizaje les permitirá hacer frente a la actualización constante que necesitan en su vida profesional. Durante su vida universitaria, esta competencia les permite un mejor desempeño académico y evitar la reprobación.El objetivo de la presente investigación fue evaluar la efectividad de la aplicación de un programa multifase de intervención del tipo coaching a un grupo de 25 alumnos del tercer nivel de la carrera de ingeniería farmacéutica a lo largo de 12 sesiones a través del desarrollo de los componentes de la autorregulación del aprendizaje.A partir de varias pruebas publicadas en la bibliografía científica se diseñó un test de medición de varios de los componentes de la competencia denominado TMAAR, por medio del cual se evaluó el uso de estrategias de aprendizaje, la autoeficacia, la orientación a la meta, las estrategias de autominusvalía, el manejo del ambiente y la conducta, y la búsqueda y aprendizaje de la información, antes y después de la aplicación del programa de coaching (pretest y postest). También se realizó una evaluación cualitativa de la competencia, a partir de memorias de sesión y notas de campo.Los resultados demostraron estadísticamente (t (25) = -4.553, p<0.05) que el programa de coaching diseñado fue capaz de desarrollar la competencia de autorregulación del aprendizaje de los componentes analizados

Análisis de las barreras percibidas por los deportistas de élite españoles para acceder a los estudios

Los objetivos del presente estudio fueron determinar si la formación académica de los deportistas de élite, la carga de entrenamiento, la dificultad para conciliar estudios y deporte y las barreras percibidas para estudiar son diferentes en función del tipo de deporte practicado y del género. Se utilizó un estudio descriptivo transversal mediante encuestas, con muestreo intencional, administrando un cuestionario de preguntas cerradas, elaborado ad hoc. Participaron un total de 648 deportistas de élite, de ellos, 418 eran deportistas de deportes individuales y 230 deportes colectivos. La carga de entrenamiento fue superior entre deportistas que practicaba deportes individuales. El nivel académico fue superior en los deportistas de deportes colectivos frente a los de deportes individuales. Los deportistas de deportes individuales percibieron una mayor di$cultad para conciliar su vida deportiva y los estudios. Así mismo, también mostraron en mayor grado barreras de tipo individual (estoy cansado habitualmente, me da pereza y pierdo el ritmo de los cursos) que los deportistas de deportes colectivos. Las mujeres mostraron en mayor medida que los hombres barreras relacionadas con la gestión del tiempo (no tengo tiempo, los horarios de los estudios no son %exibles). Los deportistas de deportes individuales son un colectivo con riesgo de sufrir exclusión académica

Concentrations and size distributions of fungal bioaerosols in a municipal landfill

The object of this research was to study the behavior of fungal bioaerosols during a sampling period of 12 months (April 2015–April 2016), in each treatment stages of a landfill located in Atlántico Department, Colombia. The fungi bioaerosol samples were collected using a Six-Stage Viable Andersen Cascade Impactor - Thermo Fisher Scientific, a vacuum pump with a flow rate of 28.3 L/min–1, and ammeter KESTREL 4500 for the weather conditions. With the large amount of data obtained, a database was made in excel and analyzed using Statgraphics Centurion XVI software. The processing of data mining was carried out applying to a generalized linear regression model and Multifactorial ANOVA. Golden Surfer 11 program was used to stablish the distribution of temporal and spational mold airborne. The Variables: sampling campaign, stage, taxa, temperature and relative humidity presented a statistically significant correlation with the concentration P-value = 0. The concentrations of fungal bioaerosols varied considerably over the whole sampling period with average concentrations from 73.02 ± 26, 75 CFUs/m3 to 1830.38 ± 971.28 CFUs/m3. The fungal bioaerosols presented in both the coarse and fine fraction; but the fraction of 2.1–3.3 μm (stage 4) was the fraction of the dominant size in terms of higher concentration. According to the taxa identification, there was a higher prevalence of Aspergillus: the highest concentration corresponds to A. fumigatus, associated to toxins that may be cytotoxic [1, 2]

Eina per a l'implementació dels requisits d'higiene en petits cellers

Requisits d’higiene; APPCC; CellersRequisitos de higiene; APPCC; BodegasHygiene requirements; HACCP; CellarsAquesta Eina per a la implementació dels requisits d’higiene en petits cellers està dissenyada per al següent: Aclarir quina és la documentació que heu de tenir els petits productors. / Ser una eina de suport entre la normativa sanitària i la GPCH vitivinícola. / Definir els criteris de flexibilitat que us són d’aplicació

The European antibody network's practical guide to finding and validating suitable antibodies for research

[EN]Antibodies are widely exploited as research/diagnostic tools and therapeutics. Despite providing exciting research opportunities, the multitude of available antibodies also offers a bewildering array of choice. Importantly, not all companies comply with the highest standards, and thus many reagents fail basic validation tests. The responsibility for antibodies being fit for purpose rests, surprisingly, with their user. This paper condenses the extensive experience of the European Monoclonal Antibody Network to help researchers identify antibodies specific for their target antigen. A stepwise strategy is provided for prioritising antibodies and making informed decisions regarding further essential validation requirements. Web-based antibody validation guides provide practical approaches for testing antibody activity and specificity. We aim to enable researchers with little or no prior experience of antibody characterization to understand how to determine the suitability of their antibody for its intended purpose, enabling both time and cost effective generation of high quality antibody-based data fit for publication.SIOur research has been supported by funding from Cancer Research UK (Program A10702 to A.H.B) and Bloodwise (Program 13047 to A.H.B). The research was supported by the National Institute for Health Research (NIHR) Oxford Biomedical Research Center based at Oxford University Hospitals NHS Trust and University of Oxford. The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health. Grant No 310/6 from the Deutsche Forschungsgemeinschaft to F.K.-N. Grants from the Instituto de Salud Carlos III (PI14/00703, PN de I+D+I 2013-2016) and the CSIC (201320E109 and 201420E109) to L.K. laboratory. Grants of the Spanish Ministry of Health (Fondo de Investigaciones Sanitarias, PI10/01039), Department of Education of Castilla and León Regional Government (Grant# LE007A10–2) and Mutua Madrileña Foundation (Basic research grants 2012) to J.I.R.B. This work was supported by a grant from the Dutch government to the Netherlands Institute for Regenerative Medicine (NIRM, grant No. FES0908)

Soil biochemistry and microbial activity in vineyards under conventional and organic management at Northeast Brazil.

The São Francisco Submedium Valley is located at the Brazilian semiarid region and is an important center for irrigated fruit growing. This region is responsible for 97% of the national exportation of table grapes, including seedless grapes. Based on the fact that orgThe São Francisco Submedium Valley is located at the Brazilian semiarid region and is an important center for irrigated fruit growing. This region is responsible for 97% of the national exportation of table grapes, including seedless grapes. Based on the fact that organic fertilization can improve soil quality, we compared the effects of conventional and organic soil management on microbial activity and mycorrhization of seedless grape crops. We measured glomerospores number, most probable number (MPN) of propagules, richness of arbuscular mycorrhizal fungi (AMF) species, AMF root colonization, EE-BRSP production, carbon microbial biomass (C-MB), microbial respiration, fluorescein diacetate hydrolytic activity (FDA) and metabolic coefficient (qCO2). The organic management led to an increase in all variables with the exception of EE-BRSP and qCO2. Mycorrhizal colonization increased from 4.7% in conventional crops to 15.9% in organic crops. Spore number ranged from 4.1 to 12.4 per 50 g-1 soil in both management systems. The most probable number of AMF propagules increased from 79 cm-3 soil in the conventional system to 110 cm-3 soil in the organic system. Microbial carbon, CO2 emission, and FDA activity were increased by 100 to 200% in the organic crop. Thirteen species of AMF were identified, the majority in the organic cultivation system. Acaulospora excavata, Entrophospora infrequens, Glomus sp.3 and Scutellospora sp. were found only in the organically managed crop. S. gregaria was found only in the conventional crop. Organically managed vineyards increased mycorrhization and general soil microbial activity

Las unidades del discurso oral. La propuesta Val.Es.Co. de segmentación de la conversación (coloquial)

El presente artículo resume y examina críticamente la propuesta de segmentación del discurso realizada en Briz y Grupo Val.Es.Co (2003). El modelo Val.Es.Co. consta de ocho unidades (discurso, diálogo, intercambio/ alternancia de turnos, intervención/turno, acto y subacto), tres órdenes (social, estructural e informativo) y cuatro posiciones (inicial, media, final e independiente); se caracteriza, además, por ser jerárquico y recursivo. La aplicación del modelo Val.Es.Co. permite la segmentación de una conversación coloquial sin residuos, así como un adecuado tratamiento de diversos fenómenos conversacionales (actos truncados, solapamientos, elementos suprasegmentales o marcadores discursivos)This paper summarizes and critically reviews the model of discourse segmentation made by Briz and Grupo Val.Es.Co (2003). This model is made up of eight units (discourse, dialogue, exchange/ turn taking, intervention/turn, act and subact), three orders (social, structural and informative) and four positions (initial, medial, final and independent). The Val.Es.Co model is also hyerarchical and recursive. By applying the Val.Es.Co model, a conversation can be divided into parts and subparts without any element remaining unanalyzed. Also, some specific features occurring in conversations such as false starts, overlappings, the segmentation value of prosodic features or discourse markers, can be successfully analyze

The function of the NADPH thioredoxin reductase C-2-Cys peroxiredoxin system in plastid redox regulation and signalling

AbstractProtein disulphide–dithiol interchange is a universal mechanism of redox regulation in which thioredoxins (Trxs) play an essential role. In heterotrophic organisms, and non-photosynthetic plant organs, NADPH provides the required reducing power in a reaction catalysed by NADPH-dependent thioredoxin reductase (NTR). It has been considered that chloroplasts constitute an exception because reducing equivalents for redox regulation in this organelle is provided by ferredoxin (Fd) reduced by the photosynthetic electron transport chain, not by NADPH. This view was modified by the discovery of a chloroplast-localised NTR, denoted NTRC, a bimodular enzyme formed by NTR and Trx domains with high affinity for NADPH. In this review, we will summarize the present knowledge of the biochemical properties of NTRC and discuss the implications of this enzyme on plastid redox regulation in plants