964 resultados para Good laboratory practices
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Inscripto en el análisis del discurso interaccional de tradición angloamericana y optando por un abordaje metodológico etnográfico, este proyecto plantea investigar las relaciones entre textos orales y entre textos orales y escritos vinculados en cadenas textuales en un acontecimiento comunicativo institucional en el que tales relaciones tienen consecuencias directas en la confiabilidad de la información e intervienen en la construcción del conocimiento oficial. La situación comunicativa elegida es el examen y el contraexamen de testigos comunes durante procesos penales orales, de formato común no abreviado, en la jurisdicción de Córdoba capital. En las interacciones verbales con litigantes y jueces en las que emerge el testimonio se ponen en juego otros textos orales (en forma de citas de lo dicho antes por el mismo testigo u otras personas, referencias a rumores u opiniones colectivas, etc.) y textos escritos (actas de secuestro, informes periciales, actas de las declaraciones testimoniales en la etapa de instrucción, etc.). El foco de atención son las prácticas asociadas a la intertextualidad puesto que condicionan el carácter de la prueba testimonial producida ante el juzgador. Postulamos que los litigantes despliegan tácticas locales y estrategias globales reconocibles y recurrentes vinculadas al tratamiento de diversas categorías de textos previos. Además, planteamos averiguar si la participación de los jueces en interacción con los testigos es de suficiente injerencia como para ser un modo importante de generación de prueba testimonial. El enfoque metodológico general es etnográfico y analíticodiscursivo. Se seleccionará una causa por delito grave, se presenciará el debate en la cámara y se registrará el audio de todas las audiencias. Los datos a analizar serán los segmentos en las interacciones en los que se incorpora la lectura o se cita las actas de las declaraciones indagatorias o testimoniales anteriores, y los segmentos en los que se requiere, en calidad de prueba testimonial, la reproducción de dichos. Se procederá a partir de los detalles de la superficie textual y la pragmática de los intercambios y aprovechando el valor heurístico del concepto de voz, buscando identificar patrones recurrentes y los mecanismos generales que los rigen. Sobre esa base, se considerarán los intercambios verbales como interacción social que emerge moldeada por condiciones situacionales e institucionales y otros factores, tales como la incidencia de la pertenencia a grupos sociales o profesionales. Con el estudio se obtendrá una visión de prácticas cotidianas asociadas a la intertextualidad que son de crucial importancia para el carácter de la prueba testimonial producida ante el juzgador. Este paso nos acercará a conocer cómo se lleva a cabo efectivamente la administración de justicia penal y permitirá valorar los patrones de conducta a la luz de las normas procesales. In line with the Anglo-American tradition of situated discourse analysis, this project aims at tracing the links between oral texts and between oral and written texts related in textual chains which are present in an institutional event in which such relations have a direct consequence on the reliability of the information given and have an impact on the construction of what counts as official knowledge. The communicative situation under study is that of the direct and cross-examination of lay witnesses during a criminal trial in the city of Córdoba. During the face-to-face interactions between trial lawyers and judges in which the testimony takes place, other oral texts and written texts get incorporated. The focus of this research is centered on practices of intertextuality as they condition the nature of the oral evidence produced. It is argued that trial lawyers use recurrent local tactics and global strategies that are related to the treatment given to different categories of previous texts. Another aim of this study is to examine if judge’s interventions have an impact on the generation of the oral evidence. The data will come from a criminal trial that will be audio-taped in its entirety. Ethnographic observations of a criminal trial will be made. The focus of analysis will be on segments of interactions in which previous texts are read aloud or incorporated as quotes. After carrying out a detailed analysis of the surface of texts and the pragmatics of the exchanges, recurrent patterns and the general mechanisms that condition their emergence will be described. In this way, verbal exchanges will be considered social interactions that unfold conditioned by situational, institutional and social factors. This study will examine the relationship between intertextuality and the institutional practice of providing oral evidence. This will help understand how justice is actually administered and how patterns of behavior are valued according to institutional norms.
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Construction and demolition waste management is becoming increasingly important on construction sites as landfill space in Ireland is rapidly depleting and waste management costs are rising. Due to these factors waste management plans are seen as a good response to minimising waste on site and this thesis aims to investigate how to implement such a plan on a practical case study as well as investigating the legislation regarding construction and demolition waste along with market availability for the reuse of the waste. Main contractor surveys were also carried out in order to gain a better understanding of current attitudes within the industry and these surveys are analysed in chapter five. A survey was also carried out among sub-contractors but this survey has not been used for this thesis as the study is on-going. The primary aim of this thesis is to examine the waste hierarchy opportunities that are available for construction and demolition waste in Ireland and to examine the effects of management strategies on construction and demolition waste reduction at the project level. A partnership was developed with Carey Developments Ltd in Co. Galway and an analysis of their waste management practices was undertaken. The primary case study will be the ‘Taylors Hill’ project in Co. Galway where work commenced in March, 2012. The secondary aim of the thesis is to develop specific waste minimisation strategies for the company and to develop a training tool kit for use on site.
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The vulnerability to pollution and hydrochemical variation of groundwater in the mid-west karstic lowlands of Ireland were investigated from October 1992 to September 1993, as part of an EU STRIDE project at Sligo Regional Technical College. Eleven springs were studied in the three local authority areas of Co. Galway, Co. Mayo, and Co. Roscommon. Nine of the springs drain locally or regionally important karstic aquifers and two drain locally important sand and gravel aquifers. The maximum average daily discharge of any of the springs was 16,000 m3/day. Determination of the vulnerability of groundwater to pollution relies heavily on an examination of subsoil deposits in an area since they can act as a protecting or filtering layer over groundwater. Within aquifers/spring catchments, chemical reactions such as adsorption, solution-precipitation or acid-base reactions occur and modify the hydrochemistry of groundwater (Lloyd and Heathcote, 1985). The hydrochemical processes) that predominate depend cm the mineralogy of the aquifer, the hydrogeological environment, the overlying subsoils, and the history of groundwater movement. The aim of this MSc research thesis was to investigate the hydrochemical variation of spring outflow and to assess the relationship between these variations and the intrinsic vulnerability of the springs and their catchments. If such a relationship can be quantified, then it is hoped that the hydrochemical variation of a spring may indicate the vulnerability of a spring catchment without the need for determining it by field mapping. Such a method would be invaluable to any of the three local authorities since they would be able to prioritise sources that are most at risk from pollution, using simple techniques of chemical sampling, and statistical analysis. For each spring a detailed geological, hydrogeological and hydrochemical study was carried out. Individual catchment areas were determined with a water balance/budget and groundwater tracing. The subsoils geology for each spring catchment were mapped at the 1:10,560 scale and digitised to the 1:25,000 scale with AutoCad™ and Arclnfo™. The vulnerability of each spring was determined using the Geological Survey's vulnerability guidelines. Field measurements and laboratory based chemistry analyses of the springs were undertaken by personnel from both the EPA Regional Laboratory in Castlebar, Co. Mayo, and the Environment Section of Roscommon Co. Council. Electrical conductivity and temperature (°C) were sampled fortnightly, in the field, using a WTW microprocessor conductivity meter. A percentage (%) vulnerability was applied to each spring in order to indicate the areal extent of the four main classes of vulnerability (Extreme, High, Moderate, and Low) which occurred within the confines of each spring catchment. Hydrochemical variation for the springs were presented as the coefficient of variation of electrical conductivity. The results of this study show that a clear relationship exists between the degree of vulnerability of each catchment area as defined by the subsoil cover and the coefficient of variation of EC, with the coefficient of variation increasing as the vulnerability increases. The coefficient of variation of electrical conductivity is considered to be a parameter that gives a good general reflection of the degree of vulnerability occurring in a spring catchment in Ireland's karstic lowlands.
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The appraisal of anaerobic digestion in Ireland to develop improved designs and operational practice
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Mesophilic Anaerobic Digestion treating sewage sludge was investigated at five full-scale sewage treatment plants in Ireland. The anaerobic digestion plants are compared and evaluated in terms of design, equipment, operation, monitoring and management. All digesters are cylindrical, gas mixed and heated Continuously Stirred Tank Reactors (CSTR), varying in size from 130m3 to 800m3. Heat exchanger systems heat all digesters. Three plants reported difficulties with the heating systems ranging from blockages to insufficient insulation and design. Exchangers were modified and replaced within one year of operation at two plants. All but one plant had Combined Heat and Power (CHP) systems installed. Parameter monitoring is a problem at all plants mainly due to a lack of staff and knowledge. The plant operators consider pH and temperature the most important parameters to be measured in terms of successful monitoring of an anaerobic digester. The short time taken and the ease at which pH and temperature can be measured may favour these parameters. Three laboratory scale pilot anaerobic digesters were operated using a variety of feeds over at 144-day period. Two of the pilots were unmixed and the third was mechanically mixed. As expected the unmixed reactors removed more COD by retention of solids in the digesters but also produced greater quantities of biogas than the mixed digester, especially when low solids feed such as whey was used. The mixed digester broke down more solids due to the superior contact between the substrate and the biomass. All three reactors showed good performance results for whey and sewage solids. Scum formation occurred giving operational problems for mixed and unmixed reactors when cattle slurry was used as the main feed source. The pilot test was also used to investigate which parameters were the best indicators of process instability. These trials clearly indicated that total Volatile Fatty Acid (VFA) concentrations was the best parameter to show signs of early process imbalance, while methane composition in the biogas was good to indicate possible nutrient deficiencies in the feed and oxygen shocks. pH was found to be a good process parameter only if the wastewater being treated produced low bicarbonate alkalinities during treatment.
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