Dissertations / Theses: 'Meal plan'

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Ovalle, Tapia María Teresa. "Internacionalización de un emprendimiento social: Plan de negocios de "buy a meal, give a meal movement-BamGam"." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/134531.

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Autor no autoriza el acceso a texto completo de su documento hasta el 15/6/2020.
Magíster en Gestión para la Globalización
La siguiente tesis es un plan de negocios para la internacionalización del emprendimiento social BAMGAM. Esta idea nació en África en 2010 con el fin de ir en ayuda a niños en situación deficitaria. Con el tiempo la idea se expandió a Estados Unidos y a Australia, países donde opera actualmente y desde donde buscan nuevos mercados para replicar el modelo. El producto ofrecido por BAMGAM es una solución de financiación sostenible a beneficencias, creando una red social solidaria para favorecer a niños en situación desventajada, a través de la articulación de donaciones por parte de clientes del sector de restaurantes. Es ese modelo el que en la siguiente tesis se evalúa como factible o no de replicar en el contexto chileno. De acuerdo a la definición de BAMGAM, el pilar fundamental para el éxito de su modelo es su estrategia de marketing. A través de una plataforma multimedia, que integran su sitio web, las redes sociales, una aplicación para smartphones además de publicidad en prensa y afiches publicitarios en los restaurantes socios de la iniciativa , BAMGAM motiva a los clientes de restaurantes y cafés a unirse a la causa donando a organizaciones de beneficia, a través de la compra de un ítem en el menú. De acuerdo a la investigación levantada en este reporte, el modelo es replicable en Chile por varias razones. Primero, en Chile existen cerca de 15 mil organizaciones sociales que atienden a un sinfín de necesidades: infancia, adultos mayores, minusválidos, mejoras en educación, personas enfermas, etc. Estas organizaciones sociales se han visto obligadas a levantar campañas y, muchas veces, competir entre ellas por la obtención de recursos que cubran los costos de sus actividades. En este sentido, en Chile existe la necesidad de la existencia de un organismo que aúne los esfuerzos disgregados de estas organizaciones en la tarea de captar donaciones. Por lo mismo, soluciones de financiamiento que además ayuden a mejorar los niveles de credibilidad de estas instituciones de ayuda a sectores desventajados son altamente valorados. Por otra parte, en Chile existe la posibilidad de las empresas hagan uso de incentivos tributarios para hacer donaciones en beneficio de instituciones sin fines de lucro. Utilizando esta herramienta, además de tomar en cuenta el crecimiento sostenido de la industria gastronómica en Chile, se considera a Chile el contexto adecuado para materializar este emprendimiento. Respecto de la metodología utilizada, para la elaboración de esta tesis se consultaron informes nacionales e internacionales respecto de la industria gastronómica, como también de la situación de las sociedades de beneficencia. Asimismo, se trabajó con entrevistas semiestructuradas a actores de la industria gastronómica. Además, para la estructuración del plan de negocios se aplicó la metodología CANVAS, ajustada para emprendimientos sociales. Hecho los análisis de ingresos y costos para la operación de BAMGAM en Chile, se obtuvieron resultados que hacen viable su expansión en Chile. Para este resumen ejecutivo, se destaca que el proyecto requiere de un capital de $23.940.000, que de acuerdo con lo definido- deben ser aportados por BAMGAM Australia para el inicio de operaciones de BAMGAM Chile. Asimismo, se desprende que BAMGAM Chile resulta rentable, con una TIR de 21%. Para este análisis se asume una tasa de descuento del 15%, utilizada para la evaluación de otros proyectos asociados al rubro gastronómico.

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Mazal, Jakub. "Business plan: instant natural super-food." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-264245.

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The goal of the thesis is to develop a business plan for an instant natural food replacement operating on the Czech market, analyse the potential and feasibility of this business idea and calculate the financial estimates of the business. In the first part of the thesis, theoretical background on business planning is mapped with special focus on recent developments such as canvas business model, lean canvas and lean startup approach. This is followed by business plan structure which serves as a base for the practical part. Last topic of the theoretical part summarizes current trends in the food industry and especially market with functional food, dietary supplements, powdered food replacement, and anticipated future developments. The practical part of the thesis is constituted by the business plan for the startup selling natural powdered meal-replacement on the Czech market. The goal of this part is to verify the business model by conducting a customer survey, assess the market potential, develop the company strategy and analyse its feasibility based on the financial model for potential use by external stakeholders.

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Ruscitto, Cristina. "Predicting jet lag in long-haul cabin crew and making a simple meal plan to ameliorate it." Thesis, University of Surrey, 2016. http://epubs.surrey.ac.uk/809887/.

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Long-haul crew experience regular misalignment of the circadian rhythm causing several jet lag symptoms. However, it is unclear whether melatonin acrophase shifts post-trip relate to perceived jet lag. In addition, the role of psycho-behavioural variables on the relationship between subjective and objectively measured jet lag and fatigue are largely ignored. Further, recent research indicates that the timing of meals may help reduce jet lag symptoms on days off. The overall aim of the thesis was to give a comprehensive account of jet lag in long-haul cabin crew in terms of the relationship between bio measures and symptom perception. Four studies were undertaken. In Study 1 (longitudinal), 35 long-haul crew completed measures of circadian preference, coping, stress arousal, objective sleep parameters and subjective jet lag. The results found that i) symptoms of jet lag were worse on the day crew returned home and ii) perceived lower appetite than normal and restless sleep (objective) predicted subjective jet lag. In Study 2 (longitudinal, N = 28), circadian phase [melatonin acrophase (peak time)] was also measured. The results found a discrepancy between subjective jet lag change scores and circadian phase change post-flight predicted by perceived lower appetite than normal. In Study 3 (cross-sectional), 95 crew completed measures of illness cognitions, coping, social support, pre-work strategies, subjective jet lag and fatigue. Timeline predicted subjective jet lag, consequences predicted subjective fatigue whereas a reduction in multidimensional jet lag was predicted by increased social support. In Study 4 (randomized controlled trial, N = 60), half the participants formed an implementation intention to eat regular meals on days off (intervention) and half did not (control). Pre-intervention measurements were taken at baseline and post-intervention measures on the second recovery day. Formation of an implementation intention to eat regularly resulted in a reduction of jet lag (unidimensional) but not multidimensional jet lag and objective alertness (PVT). These findings demonstrate that jet lag is in part a psycho-social construct, not just a biological one, which is influenced by sense making and can be moderated through diet. The results have important practical and theoretical implications.

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Nadeau, Julie. "The impact of introducing dietary sugar in the meal plan of free-living subjects with type 2 diabetes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0006/MQ44229.pdf.

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Bueno, Garay Jorge Christian, and Razuri Daniel Humberto Ybarra. "Propuesta de mejora de la gestión del plan de mantenimiento de la maquinaria de una planta productora de harina de pescado basado en la implementación del Mantenimiento Productivo Total." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/652402.

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En este trabajo se describe la implementación de la gestión de mantenimiento en una de planta de procesamiento de harina y aceite de pescado en el Perú. El incumplimiento del plan de mantenimiento de la planta, principalmente generado por la acumulación de órdenes de trabajo, se ha visto reflejado en los elevados sobrecostos dentro del presupuesto del área en los últimos años. Para lograr solucionar este problema, se optó por utilizar el mantenimiento productivo total (TPM) como herramienta para la gestión. Se elaboró una estrategia de 12 pasos desarrollados en torno a los 8 pilares del TPM para el acondicionamiento, implementación y estabilización de la gestión en la planta. Mediante las capacitaciones de mantenimiento a los operadores de máquinas, se implementó el mantenimiento autónomo como parte de las labores diarias dentro de producción, logrando identificar fallas potenciales en los equipos. Así mismo, se asignaron tareas de mantenimiento al personal de producción durante los periodos de veda, con el fin de reducir la carga laboral al área de mantenimiento y así cumplir con las órdenes de trabajo. Como resultado se obtuvo una reducción del 61% del presupuesto anual de mantenimiento y 100% del personal de operaciones capacitado en labores de mantenimiento. Además, se alcanzó un aumento del 4% en promedio del OEE de la planta y Finalmente, se incrementó la importancia de la gestión de mantenimiento, así como la motivación del personal.
This paper describes the implementation of maintenance management in a fishmeal and fish oil processing plant in Peru. Failure to comply with the plant maintenance plan, mainly generated by the accumulation of work orders, has been reflected in the high overheads within the area budget in recent years. In order to solve this problem, it was decided to use total productive maintenance (TPM) as a management tool. A 12-step strategy was developed around the 8 pillars of the TPM for the conditioning, implementation and stabilization of the management in the plant. Through the maintenance training of machine operators, autonomous maintenance was implemented as part of daily work within production, identifying potential failures in equipment. Maintenance work was also assigned to production personnel during the closed periods, in order to reduce the workload to the maintenance area and thus comply with the work orders. As a result, a 61% reduction in the anual maintenance budget and 100% of the operations personnel trained in maintenance tasks were obtained. In addition, an average 4% increase in the OEE of the plant was achieved and Finally, the importance of maintenance management increased, as well as the motivation of the staff.
Trabajo de Suficiencia Profesional

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Pham, Matthew Van. "Three Essays on Food Choice Decisions." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397492614.

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Beaudet, Kara Marie, Kathryn McGlamery, Ryan Malham, and Toni Teplitsky. "Mindful Meals: Business Plan." Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/144175.

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Adele, Nyekachi Chituru. "Effects of metal speciation on metal plant dynamics in the presence of plant growth promoting bacteria." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25414.

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Excessive metal deposition in soil is of major concern to the environment due to the toxicity of metals to animals and plants. Since metals do not degrade, reducing risk of exposure relies in either removing the metals from soil, or changing their speciation which leads to changes in bioavailability, mobility and toxicity. Plants have been shown to provide a cheap alternative to chemical methods for both removing and changing metal speciation, particularly when augmented with plant growth promoting bacteria. The focus of this thesis was to investigate whether the form (speciation) in which a metal contaminant is introduced to soil affects both plant health and the efficiency of metal remediation by the plant, using the well-known hyperaccumulator Brassica juncea (L.) Czern and zinc (Zn) as the metal contaminant. This study also examined the role of plant growth promoting bacteria in changing metal speciation, impact on metal toxicity and phytoremediation efficiency. Brassica juncea was grown in pots containing soil spiked with equal amounts (600 mg Zn kg-1) of soluble Zn (ZnSO4) and nanoparticulate ZnS and ZnO. Plant height, number of leaves, root length, plant biomass and chlorophyll content of Brassica juncea were used to assess Zn toxicity. Zn localisation and speciation in soil and plant tissues was studied using transmission electron microscopy (TEM), synchrotron micro-X-ray fluorescence elemental mapping (μXRF) and synchrotron X-ray absorption spectroscopy (XAS). Growth parameters showed that ZnSO4 was the most toxic form of Zn whilst ZnS and ZnO effects were not statistically different. These differences were linked to differences in Zn content in root and shoot biomass, which was higher in ZnSO4 treatments. Inoculation with Rhizobium leguminosarum and Pseudomonas brassicacearum enhanced plant growth, Zn concentration in plant biomass and translocation of Zn in all Zn treatments. XAS analysis showed that Zn speciation was altered in roots of plants inoculated with bacteria, with Zn cysteine as the most dominant form of Zn in all inoculated Zn treatments, suggesting a role for cysteine in ameliorating Zn toxicity. By also assessing Zn speciation changes across the soilrhizosphere- plant interface, this study established that Rhizobium leguminosarum modified Zn speciation at the rhizosphere. Through this thesis work, metal speciation is a major factor in determining the efficiency of metal phytoremediation and plant tolerance. Hence, this research provides useful information on Zn speciation which will contribute to effective implementation of Zn phytoremediation.

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Tan, Yew-Foon. "Metal-protein interactome in plant mitochondria." University of Western Australia. School of Biomedical, Biomolecular and Chemical Sciences, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0162.

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[Truncated abstract] Transition metals in the plant mitochondrion have dual roles in regulating the function of the organelle. While metals participate in mitochondrial respiratory metabolism as ligands in bioenergetic, detoxifying, and various other metabolic enzymes, a breakdown in metal homeostasis during oxidative stress can perpetuate the cycling of ROS by redox active metal ions. Large-scale studies into the duplicitous roles of metal ions in biological systems has been lacking and in this thesis, a combination of metallomics, database annotations, membrane proteomics, metal-protein interactomics, structural biology, functional assays and mass spectrometry were all used to gain a clearer insight into the involvement of metal ions in affecting plant mitochondrial function. The Arabidopsis mitochondrion was shown to contain the transition metals cobalt, copper, iron, manganese, molybdenum, and zinc. Interestingly, the redox active copper and iron represented 75% of the mitochondrial metallome and these metal species were revealed to be highly labile during oxidative stress suggesting a possible contribution of metal-catalysed oxidation (MCO) in the damage of biological macromolecules. Bioinformatic analysis of metalloproteins predicted and experimentally determined to be mitochondrially localised revealed that metal ion transporters are poorly characterised. An in-depth proteomic analysis of the membrane proteome was conducted on mitochondria isolated from unstressed and stressed cell cultures resulted in the identification of stress-responsive as well as potential metal ion transporters. Also, many of the annotated metalloproteins predicted to be mitochondrial lack experimental evidence for subcellular localisation. ... However, based on evidence in the literature, it was hypothesised that metal-interacting sites may be the targets for MCO due to their affinity for metal ions. Attempts were made to identify the site specificity of MCO on mitochondrial proteins but no carbonyl sites could be found owing to technical problems associated with non-specific binding of proteins to the enrichment resin and low abundance of the labelled protein carbonyls. The use of the model protein BSA showed that protein oxidation occurs in clusters and the use of model peptides demonstrated that the ability of amino acid residues to complex metal ions is important in dictating susceptibility to MCO. Further experimental verification for the site specificity of MCO is required to determine the consequences of MCO on mitochondrial protein function. Overall, this thesis provided a large-scale analysis of the contributions of metal ions to mitochondrial respiratory metabolism with an emphasis on metal ion induced toxicity. Using multi-facetted approaches, an insight into the dynamic nature of mitochondrial metal homeostasis, stress responsive transporters, the interactions of metal ions with mitochondrial proteins and the possible mechanism in which proteins are specifically oxidised by MCO has been uncovered paving the way for future focused studies characterising the consequences of oxidative stress on specific proteins and their function.

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Oliveira, Margarida Sauvinet Andrêa e. Sousa de. "Plano de comunicação integrada de marketing para a marca Babyfoodbio." Master's thesis, Instituto Superior de Economia e Gestão, 2015. http://hdl.handle.net/10400.5/10987.

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Mestrado em Ciências Empresariais
O presente trabalho de fim de mestrado assume a vertente de projeto com a elaboração de um plano de comunicação integrada de marketing para a marca BabyfoodBio. A BabyfoodBio surge neste projeto como solução estratégica para o agrupamento de produtores de Pecuaria ELIPEC. Enquanto marca totalmente portuguesa que comercializa carne 100% biológica para o consumo de bebés a partir dos 6meses, idade em que a carne deve começar a ser introduzida na sua alimentação, pretende assim vir a ser considerada A primeira carne do bebé. Sendo a finalidade específica do produto inédita no mercado optámos por uma estratégia push, pretendendo chegar ao consumidor por intermédio da grande distribuição alimentar. Para que consigamos vir a ser a escolha das mães - seja a escolha motivada: pela conveniência do produto, dificuldade que encontra no escrutínio de qual a carne/parte da carne a dar ao seu bebé e/ou por questões ambientais- este plano irá além do planeamento estratégico no contexto B2B, terá também no seu delineamento foco na comunicação com o consumidor.
This thesis assumes a real world project with the purpose of elaboration of an integrated marketing communication plan for the recently created BabyfoodBio brand. BabyfoodBio is a Portuguese brand which deals only with 100% biological meat intended for baby consumption, after they reach 6 months of age. This is the suitable age for the introduction of meat in the baby's diet. Therefore, BabyfoodBio intends to place itself in the market as the "baby's first meat". It's the first time meat is marketed as such and consequently we opted for a pull strategy, intending to reach the consumer through the retail food distribution. So we may be the mother's first choice, motivated for the convenience, ease of choice when selecting the right meat for the baby and for environmental reasons. This plan will go beyond the strategic planning in the B2B context; will also have as its focus the communication with the consumer.

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Merkle, Ellen Denise. "The relationship between meal plans and nutritional intake of college students." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1299069537.

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Navarrete, Gutiérrez Dulce Montserrat. "Plant Metal Hyperaccumulation in Mexico : Agromining Perspectives." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0187.

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L’agromine concerne la récupération de métaux stratégiques dans les sols métallifères par la culture de plantes hyperaccumulatrices de métaux (et metalloïdes). Le moteur de cette recherche était d'évaluer le potentiel des ressources végétales mexicaines pour le développement de l'agromine. Les principaux objectifs étaient d'identifier et d'étudier quelques espèces de plantes hyperaccumulatrices de métaux au Mexique, et d'évaluer l'agronomie d'une de ces espèces avec des caractéristiques prometteuses pour l’agromine. Nous avons d'abord effectué des explorations dans trois régions ultramafiques riches en nickel (Ni) du centre et du sud du Mexique. Malgré la disponibilité du nickel dans le sol et les conditions climatiques, aucune hyperaccumulation de Ni n'a été trouvée dans ces régions. Une deuxième stratégie basée sur la phylogénie végétale comme outil de prédiction de l'hyperaccumulation des métaux a été suivie. Au total, dix espèces hyperaccumulatrices de métaux ont été identifiées au cours de cette recherche (Rubiaceae et Violaceae) dans des sols riches en Ni influencés par l'activité volcanique, dans le sud-est du Mexique ; la majorité d’entre elles n’était pas identifiée comme hyperaccumulatrices. Nos études ont révélé deux des hypernickelophores les plus puissants détectés jusqu'à présent (>4% wt Ni) et deux nouveaux genres hyperaccumulateurs de nickel (Orthion et Mayanaea). Une attention particulière a été accordée à l'hypernickelophore Blepharidium guatemalense. Le phloème des feuilles, des racines, des tiges et des pétioles de cette plante est très riche en Ni, ce qui suggère un mécanisme de redistribution via le phloème. Différentes pratiques agronomiques ont été testées pour cette plante. La fertilisation inorganique a fortement augmenté l'absorption du Ni sans modifier la croissance ou la biomasse de la plante, tandis que la fertilisation organique a augmenté la biomasse de la plante avec un effet négligeable sur les concentrations de Ni dans les parties aériennes. Une parcelle avec une culture de 5 ans, qui a ensuite été récolté deux fois par an, produit le rendement maximal en Ni de 142 kg ha⁻¹ an⁻¹. Blepharidium guatemalense est un candidat de choix pour l'agromine du Ni en raison de ses caractéristiques appréciables : absorption extrêmement efficace du Ni, production élevée de biomasse, taux de croissance rapide, et facilité de reproduction
Agromining technology involves the recovery of strategic metals from metalliferous soils through the cultivation of metal(loid) hyperaccumulator plants. The impetus of this research was to evaluate the potential of Mexican plant resources for the future development of agromining. The main objectives were then to identify and to study some metal hyperaccumulator plant species in Mexico, and to assess the agronomy of one promising “metal crop” for agromining. We first undertook field explorations in three nickel-rich ultramafic regions of central and southern Mexico. Despite the availability of soil and climatic conditions, no nickel (Ni) hyperaccumulation was found in any of these regions. A second strategy based on plant phylogeny as a prediction tool for metal hyperaccumulation was followed. In total, ten plant metal hyperaccumulator species were identified during this research (Rubiaceae and Violaceae) in Ni-enriched soils influenced by volcanic activity in Southeastern Mexico; most of them were priorly unknown. Our studies revealed two of the strongest hypernickelophores reported so far (>4%wt Ni) and two new Ni hyperaccumulator genera (Orthion and Mayanaea). Special focus was given to the hypernickelophore tree Blepharidium guatemalense. The phloem on leaves, roots, stems and petioles of this plant are the richest in Ni suggesting an unusual re-distribution mechanism via the phloem. Different agronomic practices were tested for this plant. Synthetic fertilization strongly increased nickel uptake without any change in plant growth or biomass, whereas organic fertilization enhanced plant shoot biomass with a negligible effect on foliar Ni concentrations. A 5-year-old stand which was subsequently harvested twice per year produced the maximum Ni yield tree⁻¹ yr⁻¹, with an estimated total nickel yield of 142 kg ha⁻¹ yr⁻¹. Blepharidium guatemalense is a prime candidate for Ni agromining on the account of its valuable traits: extremely efficient Ni uptake, high biomass production, fast growth rate, and easy to reproduce

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Tsang, Ting-Yu 1959. "Shear localization in plane strain metal forming." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/291333.

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A condition for the onset of shear localization for the two-dimensional plane strain case is presented. Based on the condition, shear localization in three different problems are studied. By using the NIKE2D finite element package, a punching process for thin sheet metal with frictional surfaces is analyzed and the relationship between the frictions and shear localization is discussed.

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Adediran, Gbotemi Abraham. "Role of plant growth promoting bacteria and a leguminous plant in metal sequestration from metal contaminated environments by Brassica juncea." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/10523.

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The worldwide occurrence of sites contaminated with toxic metals and the associated high costs of remediating them using chemical and mechanical methods have led to calls to develop inexpensive and sustainable approaches based on the use of plants that naturally accumulate large amounts of metals in their tissues. The ability of plants to remediate metals has been rigorously studied and some species have been identified as excellent phytoremediators. However, the growth of phytoremediators is often retarded under high soil metal concentrations, rendering them ineffective. Meanwhile, some plants do not have remediating abilities but are capable of growing in contaminated environments with little or no sign of stress. Despite the volume of research dedicated to the screening and evaluation of phytoremediators, major questions remain about why some plants survive but do not remediate while the growth of phytoremediators is mostly hindered. The growth and metal-remediating efficiency of plants exposed to toxic concentrations of metals can be enhanced by inoculating phytoremediating plants with certain bacteria but the mechanisms behind this process remain unclear. Furthermore, the use of leguminous plants to improve the growth of a target plant under a mixed planting system has long been recognised as an effective yield-enhancing cropping system. However, the possibility of a non-remediating but tolerant leguminous plant conferring metal tolerance to a phytoremediator has not been explored. This thesis reports results from repeated glasshouse and lab-based growth experiments on the phytoremediating plant Brassica juncea exposed to 400 – 600 mg Zn kg-1. The aim was to investigate the abilities of two plant growth promoting bacteria (PGPB) species Pseudomonas brassicacearum and Rhizobium leguminosarum, and a leguminous plant Vicia sativa to promote B. juncea growth and enhance remediation of Zn-contaminated soil. B. juncea plant roots were analysed using synchrotron based micro-focus X-ray Fluorescence (μXRF) imaging and X-ray Absorption Near Edge Structure (μXANES) analysis to probe Zn speciation. P. brassicacearum exhibited the poorest plant growth promoting ability, while R. leguminosarum alone and in combination with P. brassicacearum significantly enhanced B. juncea growth and Zn bioaccumulation. X-ray Absorption Spectroscopy (XAS) analysis showed that reduced plant growth was due to root accumulation of Zn as Zn sulphate, Zn oxalate and Zn polygalacturonic acids. The better growth and increased metal accumulation observed in plants inoculated with R. leguminosarum and its combination with P. brassicacearum was attributed to root storage of Zn in the chelated forms of Zn phytate and Zn cysteine. A subcellular analysis of plant root also showed that the PGPB enhanced tolerance to Zn contamination by enhancing epidermal Zn compartmentalisation depending on the nature of root colonization, and induced changes in Zn speciation to less toxic Zn species in the epidermis and endodermis of plant root. The thesis therefore identifies enhanced Zn compartmentalization at the root epidermis and bacterial mediated changes in Zn toxicity through changes in Zn speciation as key complimentary mechanisms of plant growth promotion and enhanced Zn accumulation in plants by PGPB. Further experiments investigating alternative phytoremediation strategies showed that the use of the leguminous plant V. sativa in a mixed planting system with B. juncea plants completely out performed the effects of bacteria in promoting the growth and remediation potential of B. juncea under Zn contamination. By combining PGPB with mixed planting, B. juncea recovered full growth while also achieving maximum phytoremediation efficiency. The novel legume assistedmicrobial phytoremediation method that is reported in this thesis is the first to demonstrate complete plant growth recovery in plants exposed to 400 – 450 mg kg-1 soil Zn contamination for 5 weeks. Survival of V. sativa was attributed to its root storage of Zn in the chelated forms of Zn histidine and cysteine whereas in the roots of stunted B. juncea plants the majority of Zn was present as Zn oxalate and toxic Zn sulphate. Although the use of natural and synthetic chelates has been reported to enhance phytoremediation, this thesis recommends a legume-assisted-microbialphytoremediation system as a more sustainable method for Zn bioremediation.

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Paulson, Allan Thomas. "Functionality of plant proteins for comminuted meat systems." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/27182.

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A three part study is presented which examines the functional properties of plant proteins as they relate to textural and stability characteristics of protein-replaced meat emulsions. In the first chapter, the effects of cooking time (25 or 50 min) and temperature (70 or 95°C) on texture, microstructure and cook stability of a model meat emulsion system containing soy or canola protein isolate were investigated. The plant proteins were added either dry or rehydrated at replacement levels of 33.3% and 66.7% of the meat protein. Instrumental texture profile analysis and stability data revealed several complex interactions between experimental variables; however, level of protein replacement was predominant, with decreased firmness and increased yield resulting from increased replacement of meat protein. Thermorheological profiles of emulsions and protein dispersions demonstrated that the development of elasticity of all-meat emulsions during heating was essentially complete at 75-80°C, while the elasticity of canola or soy protein dispersions continued to rise with heating to 95°C. A meat emulsion containing canola protein displayed characteristics of the all-meat emulsion and canola protein dispersion thermoprofiles, but the increased structure formation from the canola protein at higher heating temperatures did not fully compensate for an initial decrease in elasticity that resulted from the loss of meat protein. Although there were slight differences in the fat particle distributions of the emulsions containing plant protein, the distributions had similar shapes, where particles larger than 50 micrometers approximated a normal distribution, and were thought to be relatively intact fat cells while the number of particles with diameters of 10-50 micrometers increased in an essentially logarithmic manner as size decreased. The microstructure of the proteinaceous matrix was affected primarily by protein source, replacement level and cooking conditions. In chapter 2, thermally induced gelation (72°C, 30 min heating) and emulsification properties of unmodified and succinylated canola protein isolate (54% and 84% modification of free amino groups) were examined over a wide range of pH values (pH 3.5-11.0) and sodium chloride concentrations (0.0-0.7M). Succinylation improved the gelation ability of canola isolate. For the unmodified isolate, gels formed at only 4 of 18 combinations of pH and NaCl concentration, while 12 gels formed from each level of succinylation under the same conditions. Above pH 6.5, succinylated protein formed gels only in the presence of NaCl. In general, the firmest gels were obtained with the moderate level of succinylation. Translucent and opaque gels responded differently to Theological tests and were related in different ways to the physicochemical and Theological properties of protein dispersions. The viscoelastic properties of the translucent gels were affected mainly by protein solubility and hydrophobicity, while those of the opaque gels were related to solubility, hydrophobicity, zeta potential and apparent viscosity of protein dispersions. The types of bonds involved in gel formation and stability were tentatively identified as hydrophobic interactions and hydrogen bonds. With the succinylated isolates, gels were formed in the presence of calcium ions at a concentration an order of magnitude less than was required for similar gel strengths with NaCl, which has implications for exploiting the gelation ability of succinylated proteins in products where high concentrations of NaCl are undesirable. Both emulsification activity and emulsion stability were increased by succinylation, but exhaustive succinylation was not required to produce a significant improvement in these properties. Emulsification activity was related to protein solubility, hydrophobicity, zeta potential and flow behavior of protein dispersions, while emulsion stability appeared to be mainly a measure of resistance to creaming and was related to protein solubility, zeta potential, apparent viscosity of protein dispersions, and the difference in density between the aqueous and oil phases. The third chapter examined the relationship between textural measurements of canola isolate gels obtained by means of a puncture test with an Instron tester, and fundamental rheological parameters obtained from nondestructive dynamic shear measurements with a Weissenberg Rheogoniometer. Although the force required to rupture the gels, as measured by the puncture test, was poorly correlated with the viscoelastic parameters, the slope of the force-deformation curves to the point of rupture was well correlated with the storage and loss moduli of the gels. In addition, the area under the force-deformation curves to rupture followed a curvilinear relationship with the loss tangent of the gels. The response of translucent and opaque gels to the two types of rheological tests was not identical, which indicated that gel microstructure is an influential factor when evaluating gel rheological properties by destructive or nondestructive methods.
Land and Food Systems, Faculty of
Graduate

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BARCELOS, CARLOS AUGUSTO CARPANZANO. "PHOTOPLASTICITY APPLIED TO METAL FORMING PROBLEMS: PLANE EXTRUSION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1986. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=20640@1.

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COMISSÃO NACIONAL DE ENERGIA NUCLEAR
O principal objetivo deste trabalho foi avaliar de forma quantitativa a aplicação da fotoplasticidade como técnica experimental, na predição das grandes deformações plásticas que ocorrem em componentes metálicos, quando são trabalhados em processos de conformação mecânica. Esta avaliação foi feita através do estudo do problema de extrusão plana. As distribuições das deformações obtidas através da analise fotoplastica foram comparadas com as obtidas técnica de malha, em modelos planos feitos de resinas poliéster e epóxi, chumbo e alumínio. Na procura de determinar o polímero que melhor reproduz o comportamento mecânico dos outros materiais comumente empregados em processos de conformação, várias combinações de resinas poliéster rígida e flexível, e uma nova formulação de resinas poliéster rígida e flexível, e uma formulação de resina epóxi ainda em desenvolvimento, foram estudadas quando submetidas a extrusão plana. Os resultados foram comparados com os obtidos para modelos de alumínio e chumbo, submetido ao mesmo processo de conformação mecânica. Embora outras misturas de resina poliéster tenham tido resultados satisfatórios, verificou-se, que a mistura 70 por cento rígida e 30 por cento flexível modela bem as deformações plásticas que ocorrem na extrusão de materiais como chumbo e alumínio, se fatores de correção adequados forem utilizados.
The main objetive of this thesis is to evalute in a quantitative manner the possibility of employing photoplasticity as na experimental techinique for the predection of large plastic strains which occur in mechamnical forming. This was made throught an experimental study of the plane extrusion problem. Distribuitions of strains obtained through the photoplastic analystic were compared to those obtained by the grid technique in plane models made of spoxy and polyester resinds, lead and aluminum. Trying to determine the polymer that best reproduces the mechanical behavior of other materials commonly used in forming processes, several combinations of rigid and flexible polyester resins and a new formulation of a epoxy resin still in development ere studied when submitted to plane extrusion. The results were compared with those obtained from aluminum and lead models subject to the same mechanical process. Although, other combinations of polyester resind present satisfactory results, it was verifyed that the combination of 70 per cent rigid and 30 per cent flexible polyester resins was teh one that best modeled the plastic strains that occurred in the plane extrusion of the aluminum and lead specimens, if appropriate correction factors were aplled to take into account the plastic strain recovery which occurs right after unloading of the polyester specimens.

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Carbone, Serena <1984&gt. "Impact of metal and metal oxide engineered nanoparticles in soil and plant systems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6644/.

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Nanotechnology promises huge benefits for society and capital invested in this new technology is steadily increasing, therefore there is a growing number of nanotechnology products on the market and inevitably engineered nanomaterials will be released in the atmosphere with potential risks to humans and environment. This study set out to extend the comprehension of the impact of metal (Ag, Co, Ni) and metal oxide (CeO2, Fe3O4, SnO2, TiO2) nanoparticles (NPs) on one of the most important environmental compartments potentially contaminated by NPs, the soil system, through the use of chemical and biological tools. For this purpose experiments were carried out to simulate realistic environmental conditions of wet and dry deposition of NPs, considering ecologically relevant endpoints. In detail, this thesis involved the study of three model systems and the evaluation of related issues: (i) NPs and bare soil, to assess the influence of NPs on the functions of soil microbial communities; (ii) NPs and plants, to evaluate the chronic toxicity and accumulation of NPs in edible tissues; (iii) NPs and invertebrates, to verify the effects of NPs on earthworms and the damaging of their functionality. The study highlighted that NP toxicity is generally influenced by NP core elements and the impact of NPs on organisms is specie-specific; moreover experiments conducted in media closer to real conditions showed a decrease in toxicity with respect to in vitro test or hydroponic tests. However, only a multidisciplinary approach, involving physical, chemical and biological skills, together with the use of advanced techniques, such as X-ray absorption fine structure spectroscopy, could pave the way to draw the right conclusions and accomplish a deeper comprehension of the effects of NPs on soil and soil inhabitants.

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Veiverberg, Cátia Aline. "Desempenho e características de carcaça de juvenis de carpa capim (ctenopharyngodon idella) em resposta a níveis e fontes de proteína da dieta." Universidade Federal de Santa Maria, 2009. http://repositorio.ufsm.br/handle/1/10723.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico
This work was carried out to evaluate the performance and carcass characteristics of grass carp (Ctenopharyngodon idella) juveniles in response to dietary protein levels and sources. For this, two experiments were conducted: the first (80 days), evaluating four crude protein (CP) levels (22, 30, 36 and 44%) and the second (60 days), comparing protein sources in the diet: FCS (porcine meat meal - control); FC: canola meal; FG: sunflower meal and FCG: canola meal + sunflower meal. Both experiments were conducted in a water re-use system composed of 12 tanks (850 L), with three replicates per treatment. In experiment 1, 10 fish by tank (initial weight 153,0±1,5g) were fed 3% of body weight, twice daily, and the experiment 2 was provided ration (2% of biomass) in the morning and forage (Napier grass ad libitum) in the afternoon, to 15 fish by tank (initial weight 54,6±1,0g). Growth parameters (weight, specific growth rate, daily weight gain, relative weight gain and feed conversion ratio) and carcass (carcass and fillet yield, digestive somatic index, hepatic somatic index and visceral fat index, intestinal quotient, protein retention, protein efficiency rate and whole body and fillet protein and fat deposition) were evaluated. Moreover, the proximate composition (moisture, ash, fat and protein) in fillet and whole fish and blood parameters (glucose, total triglycerides, total cholesterol and total protein in both experiments and hematocrit in Experiment 1) were also evaluated. In experiment 2 was also determined the daily consumption of forage and the instrumental color. In experiment 1, linear positive effect of protein level for all growth variables was observed. However, the same effect was observed to whole body and fillet fat deposition, triglycerides and total cholesterol in serum, indicating that the protein from the diet was used as energy source. To feed conversion ratio and fat in whole fish, the effect was quadratic, with maximum response with 40.6 and 37.1% CP, respectively. Protein retention, protein efficiency ratio, protein deposition in whole body and fillet and hematocrit also showed linear positive effect, while the other parameters were not affected. In experiment 2, the growth parameters and the daily consumption of forage (1.24 to 2.11% of body weight) did not differ among the treatments. About proximate composition of whole fish, higher fat content and lower protein content, besides fillet ash, were obtained in the treatment FCG. The diet FCS presented the highest values of serum protein, triglycerides and total cholesterol. The fillet yield was higher in the treatments FCG and FC, while the digestive somatic index was higher in treatment FG and FCG. In the instrumental evaluation of color, the fillets from FCS and FCG diets showed higher value of L (brightness), differing only treatment FC. The other parameters did not differ among them. Based on this results, we can conclude that: the minimum protein level for maximum growth of grass carp in the growing phase, with practical diets, is 44%; the variation in dietary protein level promotes changes in metabolism of juvenile grass carp, reflected in hematological and carcass parameters; canola meal and sunflower meal can be used in diets for grass carp growing phase, when supplemented with limiting essential amino acids, without compromising growth.
Este trabalho foi conduzido com o objetivo de avaliar o desempenho produtivo e qualidade de pescado de juvenis de carpa capim (Ctenopharyngodon idella) em resposta a níveis e fontes de proteína da dieta. Para isso, foram conduzidos dois experimentos: o primeiro, com 80 dias, avaliando quatro níveis de proteína bruta (22, 30, 36 e 44%) e o segundo, com 60 dias, avaliando fontes protéicas na dieta, em combinação com farelo de soja: FCS: farinha de carne suína; FC: farelo de canola; FG: farelo de girassol e FCG: farelo de canola + farelo de girassol. Ambos os experimentos foram conduzidos em sistema de recirculação de água com temperatura controlada, composto de 12 unidades experimentais (850 L), com três repetições por tratamento. No experimento 1, 10 animais por unidade experimental (peso inicial 153,0 ± 18,2g) foram alimentados com ração (3% da biomassa) duas vezes ao dia. No experimento 2, foram utilizados 15 animais por unidade experimental (peso inicial 54,7 ± 7,8g), alimentados com ração (2% da biomassa) pela manhã e capim elefante (à vontade) à tarde. Foram avaliados os parâmetros de crescimento (peso, taxa de crescimento específico, ganho em peso diário e relativo e conversão alimentar aparente) e de carcaça (rendimento de carcaça e filé, índices digestivossomático, hepatossomático e de gordura visceral, quociente intestinal, coeficiente de retenção protéica e deposições de proteína e gordura corporal e no filé). Além disso, a composição centesimal (umidade, cinzas, gordura e proteína) no filé e no peixe inteiro e os parâmetros sangüíneos (glicose, triglicerídeos totais, colesterol total e proteínas totais nos dois experimentos e hematócrito no experimento 1) também foram avaliados. No experimento 2 também foi determinado o consumo diário de forragem e a medida instrumental da cor. No experimento 1, houve efeito linear positivo do nível de proteína para todas as variáveis de crescimento. Entretanto, o mesmo efeito foi observado para a deposição de gordura corporal e no filé, triglicerídeos totais e colesterol total no soro, indicando que a proteína proveniente da dieta estava sendo utilizada como fonte de energia. Para conversão alimentar aparente e gordura no peixe inteiro, o efeito foi quadrático, com ponto de máxima em 40,6% de PB e 37,1%, respectivamente. Coeficiente de retenção protéica, taxa de eficiência protéica, deposição de proteína corporal e no filé e hematócrito também apresentaram efeito linear positivo. No experimento 2, os parâmetros de crescimento não diferiram estatisticamente entre os tratamentos. O consumo de forragem variou entre 1,24 e 2,11% do PV por dia, não diferindo entre os tratamentos. Na composição centesimal do peixe inteiro, maior teor de gordura e menor teor de proteína foram obtidos no tratamento FCG, bem como para cinzas no filé. A dieta FCS foi a que apresentou maiores valores de proteínas, triglicerídeos e colesterol total circulantes. O rendimento de filé foi maior nos tratamentos FC e FCG, enquanto o índice digestivossomático foi maior nos tratamentos FG e FCG. Na avaliação instrumental da cor, os filés obtidos dos tratamentos FCS e FCG apresentaram maior valor de L (luminosidade), diferindo apenas do tratamento FC. Com base nos resultados obtidos, pode-se concluir que: o nível mínimo de proteína para o máximo crescimento da carpa capim na fase de recria, com dietas práticas, é de 44%; a variação do nível de proteína da dieta promove alterações no metabolismo dos juvenis de carpa capim, refletido nos parâmetros sangüíneos e de carcaça; farelo de canola e farelo de girassol podem ser utilizados em dietas para recria da carpa capim, quando for feita a suplementação com lisina e forragem, sem comprometer o crescimento.

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Chénier, Mario. "Power handling capabilities on E-plane metal-insert filters." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5450.

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Windholtz, Timothy Nolan. "Plane-Strain Formability of Sheet Metal at High Velocity." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1332509672.

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Balakrishnan, Vijaykumar. "Measurement of in-plane Bauschinger effect in metal sheets." The Ohio State University, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=osu1438610634.

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Volk, Kathryn, and Renu Malhotra. "The Curiously Warped Mean Plane of the Kuiper Belt." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/625160.

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We measured the mean plane of the Kuiper Belt as a function of semimajor axis. For the classical Kuiper Belt as a whole (the nonresonant objects in the semimajor axis range 42-48 au), we find a mean plane of inclination i(m) = 1 degrees.8(-0 degrees.4)(+0 degrees.7) and longitude of ascending node Omega(m) = 77 degrees(+18 degrees)(-14 degrees) (in the J2000 ecliptic-equinox coordinate system), in accord with theoretical expectations of the secular effects of the known planets. With finer semimajor axis bins, we detect a statistically significant warp in the mean plane near semimajor axes 40-42 au. Linear secular theory predicts a warp near this location due to the nu(18) nodal secular resonance; however, the measured mean plane for the 40.3-42 au semimajor axis bin (just outside the nu(18)) is inclined similar to 13 degrees to the predicted plane, a nearly 3 sigma discrepancy. For the more distant Kuiper Belt objects of semimajor axes in the range 50-80 au, the expected mean plane is close to the invariable plane of the solar system, but the measured mean plane deviates greatly from this: it has inclination i(m) = 9 degrees.1(-3 degrees.8)(+6 degrees.6) and longitude of ascending node Omega(m) = 277 degrees(+18 degrees)(-44 degrees). We estimate this deviation from the expected mean plane to be statistically significant at the similar to 97%-99% confidence level. We discuss several possible explanations for this deviation, including the possibility that a relatively close-in (a less than or similar to 100 au), unseen, small planetary-mass object in the outer solar system is responsible for the warping.

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Mata, Martha Patricia Guerrero. "Finite element modelling of hot plane strain compression testing." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245644.

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Kugler, Brooke. "Development of a web-to-mobile program that generates personalized meal plans for athletes." Thesis, California State University, Long Beach, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1524131.

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The purpose of this directed project was to develop a web-to-mobile meal-planning program, entitled The AMP (Automated Meal Planner) App. Specifically, this program generates pre-, during-, and post-workout meal plans for male and female athletes 20 to 45 years of age. This evidence-based meal-planning program was designed to provide athletes and active individuals instant access to healthy, nutritional lifestyle practices that ensure nutritional adequacy and bridge the gap between sports nutrition research and sports nutrition practice.

The metabolic "windows of opportunity" (pre-, during-, and post-workout) are the central focus of this meal-planning program. Meal plans are structured by nutrient timing (NT) to deliver precise amounts of nutrients at precisely the right times. Current sports nutrition research, principles and protocol were paired with an athlete questionnaire and a nutrient database through programmed algorithms. The algorithmic merger instantly generates personalized meal plans, which include foods, portion sizes, hydration, recipes, and timing.

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Jesus, Marta Sofia da Paz Almeida Simões de. "Análise média-variância aplicada a um plano de pensões de benefício definido." Master's thesis, Instituto Superior de Economia e Gestão, 2011. http://hdl.handle.net/10400.5/3756.

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Mestrado em Ciências Actuariais
Um dos principais desafios que se colocam para o futuro é encontrar uma forma sustentável de financiamento do sistema público de Segurança Social, em especial das pensões, num contexto em que a idade média da população tende a subir e a proporção de activos face aos reformados tende a descer. Tendo em conta a incerteza ligada à sustentabilidade financeira da Segurança Social a longo prazo, os fundos de pensões representam cada vez mais um papel fundamental na constituição de poupança para a reforma, bem como um meio de desenvolvimento do mercado financeiro e de capitais. A legislação e as novas normas de contabilidade, resultantes da transposição das directivas comunitárias, apresentam grandes desafios aos fundos de pensões, pois estão cada vez mais exigentes, impondo uma maior atenção para a volatilidade do excedente e sendo menos tolerantes ao sub-financiamento. Estas alterações levam a uma focalização e crescente importância das técnicas de Assetand Liability Management(ALM). A aplicação das novas regras faz com que os planos de benefício definido se tornem cada vez mais dispendiosos, levando a que as empresas optem por planos de contribuição definida. O objectivo deste trabalho é tentar apresentar soluções para a mitigação parcial do risco associado àquele tipo de planos de pensões, através da aplicação de técnicas de ALM, em particular, da importante Análise Média-Variância. O presente texto aborda quer os conceitos básicos inerentes à constituição de planos de pensões, quer os aspectos associados à gestão dos fundos de pensões necessários à concretização dos referidos planos. A entidade gestora deve assegurar que os activos que integram o património de cada fundo de pensões são adequados às responsabilidades decorrentes do plano de pensões, devendo para o efeito ter em conta: a natureza dos benefícios previstos, o horizonte temporal das responsabilidades, a política de investimento estabelecida e os riscos a que os activos financeiros estão sujeitos e, por fim, o nível de financiamento das responsabilidades.
One of the main challenges for the future is to find a sustainable way of funding the Social Security public system, especially pensions, in a context where the average age of the population tends to rise and the proportion of actives over pensioners tends to decrease. Given the uncertainty in the long term financial sustainability of Social Security, pension funds represent an increasingly vital role in building savings for retirement, as well as a means of financial and capital market development. The new legislation and accounting standards, resulting from the transposition of EU directives, present major challenges to pension funds because they are more and more demanding, requiring greater attention to the volatility of the surplus and being less tolerant to under-funding. These changes lead to a growing importance of the Asset and Liability Management (ALM) techniques. The new rules make defined benefit plans to become more expensive, prompting companies to choose defined contribution plans. The aim of this paper is to present partial solutions to mitigate the risk associated with that type of pension plans, by applying ALM techniques, particularly, by means of the essential Mean-Variance Analysis. This text addresses both the basic concepts inherent to the creation of pension plans, or aspects associated with the management of pension funds necessary to implement those plans. The fund manager shall ensure that the assets of each pension fund liabilities are appropriate to the pension plan, and therefore shall take into account: the nature of benefits, the time horizon of liabilities, the investment policy established and the risks to which financial assets are subject, and finally the level of funding.

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Elder, D. L. "Carbon migration across dissimilar metal welds, related to power plant." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598798.

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This thesis deals with the changes in chemical composition and microstructure that occur when a joint between two different steels is heat treated for prolonged periods of time at a temperature below that at which austenite forms. Such joints are common place in power plant where components with different purpose are joined by welding. The aim of the work was to characterise the changes that occur at the weld junction and to quantitatively model them such that the method has predictive power. Metallographic analysis on dissimilar steel welds and bonds, heat-treated over a range of times and temperatures showed the ease of decarburised and carburised zone formation and their associated microstructures. In the low-alloy steel, rapid carbide dissolution close the dissimilar interface leaves room for grain growth that forms a decarburised zone. In the associated carburised zone, perception at and carbide coarsening occurred on grain boundaries and intra-granularly due to the associated increase in carbon concentration. In vanadium-containing low-alloy steels, stable vanadium-alloy carbides were found to complicate carbon partitioning generating wider, shallower decarburised zones compared to the smaller, almost carbide-free ones in vanadium-free steels. A model, developed for estimating the decarburised zone width in ferritic transition joints considers the carbon concentration as a function of distance from the dissimilar interface resulting from chemical potential gradients in the joint. Written in FORTRAN 77, the model uses the Crank-Nicholson implicit finite difference solution of Fick's second law, and was found to accurately predict decarburised zone widths based on measurement taken from welds and bonds from a given series of tempering tests. The existence of substantial carbon chemical potential gradients in the transition joint causes carbides to dissolve in the low-alloy steel during heat-treatment, releasing carbon to diffuse across the dissimilar interface to form a corresponding carburised zone. Naturally, the temperature and time of the heat treatment influences carbon diffusion, but the particular alloy combination in the transition joint also affects the amount of carbon partitioning.

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Ferreira, Orcantina Ione Teles. "SAÚDE ALIMENTAR/NUTRICIONAL E AMBIENTAL DESAFIOS DA EDUCAÇÃO ESCOLAR EM GOIÂNIA/GO GOIÂNIA." Pontifícia Universidade Católica de Goiás, 2011. http://localhost:8080/tede/handle/tede/3136.

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Made available in DSpace on 2016-08-10T10:56:03Z (GMT). No. of bitstreams: 1 ORCANTINA IONE TELES FERREIRA.pdf: 459295 bytes, checksum: e6735221fc24c1be1e6290d7ef1247ea (MD5) Previous issue date: 2011-08-12
The practical application of the National School Alimentation Program (PNAE) orientations as well as the schools Pedagogical Political Project (PPP) can both interfere in the nutritional and environmental education. This study analyzed if nutritional and environmental education is developed in the basic public schools in Goiânia, and if there are concrete didactic actions related to the school meals, looking specially at the differences between the downtown schools and those from the outskirts, with meals half-day and whole-day. This study uses a quantitative study, and the data was collected at 22 basic state schools in Goiânia. The schools were divided in three groups: eighteen outskirts schools with half-day meals (EPP), three downtown schools with half-day meals (ECP) and one downtown school with whole-day meals (ECI). To acquire the data this study used two questionnaires based on the Questionnaire D School Meals Acceptance . The questionnaires were answered by 1346 students and 275 teachers. Descriptive statistical analysis were made in order to test if there were a significant difference, as well as the chisquare test, which the significance level was 0,05. This study concluded that, in average, 74% ECP, 100% ECI e 82% EPP of the teachers declared to use the PNAE at the schools PPP. The use of nutritional education was verified in the 51% ECP, 31% ECI e 77% EPP of the answers that confirmed that practice, and most also said to use interdisciplinary activities. Most teachers consider themselves qualified to explain about the importance of nutritional education (69% ECP, 77% ECI e 81% EPP). The practice of schools kitchens staff is close to the recommended by the PNAE, 83% ECP, 92% ECI e 100% EPP cook the meals at the schools kitchen or at a central one. The average of 65% ECP, 69% ECI e 74% EPP of the teachers says that the staff is adequately equipped to guarantee the foods hygiene. Looking at the students opinions about the schools meals, we can say that 54% ECP, 51% ECI e 54% EPP of the students don t like some of the food offered. Within the reasons why the students don t eat the meals are the fact that some think of it as repetitive, that the time for eating is short, that the dining hall tables are inadequate and that the area isn t clean. The school is supposed to be the ideal place for nutritional health promotion, however, this analysis shows that promoting nutritional education requires a great evolvement from the students, teachers qualification, interference from the CAE (Council of School Feeding), presence of a nutrition professional and quality improvement of the meals served at the schools, guaranteeing the fulfillment of the nutritional parameters and promoting nutritional education.
A aplicação prática das orientações do Programa Nacional de Alimentação Escolar (PNAE) juntamente com o Projeto Político Pedagógico (PPP) das escolas configura um cenário adjacente, podendo interferir na educação alimentar/nutricional e ambiental. O objetivo deste estudo foi analisar se a educação alimentar, nutricional e ambiental é desenvolvida na rede pública de ensino fundamental de Goiânia e se há ações didáticas concretas relacionadas à merenda escolar avaliando as diferenças entre escolas do centro e da periferia com merenda parcial e integral. Optou-se por um estudo quantitativo e os dados foram coletados em 22 escolas estaduais de ensino fundamental de Goiânia. As escolas foram divididas em três grupos: dezoito escolas de periferia com merenda parcial (EPP), três escolas centrais com merenda parcial (ECP) e uma escola central com merenda integral (ECI). Para coleta de dados foram elaborados dois questionários com base no Questionário D - Aceitação da Alimentação Escolar . Os questionários foram respondidos por 1346 alunos e 275 professores. Foram realizadas análises estatísticas descritivas das variáveis categóricas e a fim de testar se houve diferença significativa, foi utilizado o teste do qui-quadrado, cujo nível de significância adotado foi 0,05. Pôde-se concluir que 74% ECP, 100% ECI e 82% EPP% dos professores afirmam constar o PNAE no PPP das escolas. A prática de ensino da educação alimentar/nutricional e ambiental foi verificada em 51% ECP, 31% ECI e 77% EPP das respostas que confirmam existir atividade pedagógica e, grande parte afirma que também há atividades interdisciplinares. A maioria dos professores se considera qualificada para explicar sobre a importância da educação alimentar (69% ECP, 77% ECI e 81% EPP). Concernente ao funcionamento dos refeitórios as escolas estão próximas ao recomendado pelo PNAE, pois 83% ECP, 92% ECI e 100% EPP preparam a alimentação escolar na cozinha da escola ou em cozinha central. Quanto ao preparo da merenda escolar a maioria (65% ECP, 69% ECI e 74% EPP) dos professores relata que os funcionários são devidamente equipados para garantir a higiene alimentar. Ao analisar a opinião dos alunos diante às práticas relacionadas à merenda escolar conclui-se que 54% ECP, 51% ECI e 54% EPP dos alunos não gostam de algumas alimentações oferecidas. Dentre os motivos pelos quais não comem a merenda destaca-se o fato de a acharem repetitiva, de o tempo disponível para comer ser curto e em relação à estrutura física afirmam que não há mesas próprias para realizar as refeições e que o local não é limpo. A escola, por princípio, é o ambiente ideal para a promoção da saúde alimentar/nutricional e ambiental, contudo, a análise atual mostra que promover educação alimentar e nutricional exige envolvimento dos alunos, qualificação do professor, atuação do CAE (Conselho de Alimentação Escolar), presença de nutricionista e melhoria da qualidade da refeição servida na escola, garantindo atendimento aos parâmetros nutricionais e promovendo educação alimentar.

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Christofaki, Maria Ioannou. "Effect of heavy metal stress in plant metabolism of solanaceous plant species with emphasis on nitrogen assimilation." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/7162.

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Several plant species are able to accumulate and withstand large quantities of heavy metals in their tissues without dramatic alterations in their growth usually observed in plants. Such metal accumulating plants are tested and used for remediation of contaminated soils and waters. Although the literature provides extensive information on the effect of heavy metals in growth and development of several metal-accumulating and non accumulating plants, nitrogen metabolism and the regulation of related enzymes have not been widely studied. In an effort to better understand the responses of plants species under heavy metal stress, a comparative study was held between two solanaceous species, Nicotiana tabacum and Nicotiana glauca, plants with promising properties for phytoremediation. Plants of the two species were grown in the presence of different concentrations of the heavy metals zinc (Zn), nickel (Ni) and cadmium (Cd) in the following experimental systems in the greenhouse: in pots containing artificial substrate for 6 weeks and hydroponically for 8 days. In order to get a global picture for the heavy metal –induced variations concerned the examined species, the accumulation and distribution of metals in various plants tissues (lower and upper leaves, lower and upper shoots, roots) was determined. Also, several morphological parameters related with plants growth, physiological related with light and dark reactions of photosynthesis and water balance, biochemical related with nitrogenous compounds metabolism and the enzymes involved in ammonia assimilation, were followed. The presence of the referenced metals in the culture medium induced alterations, in all the parameters examined. In particular, strong positive correlations exhibited between the accumulation of Zn, Ni and Cd in the examined tissues and the supplied metals concnentrations. Our data revealed different accumulation patterns for each examined metal at tissue and species level. Furthermore, both growth and physiological parameters were negatively affected at least by the higher concentration of the three metals tested. However, differential responses were observed between N. tabacum and N. glauca, where the latter seemed to be more sensitive at the higher concentration of the metals, especially for Ni and Cd, showing heavier symptoms. In addition, proline accumulation was positively affected over the range of the three metals concentrations. Alterationsinduced in quantitive and qualitive profile of soluble proteins corresponding to Zn, Ni and Cd treatments. Furthermore, the concentration of Zn, Ni and Cd differentially affected the specific activities and the protein levels of ammonia assimilating enzymes glutamine synthetase (GS), glutamate synthase (Fd-GOGAT) and glutamate dehydrogenase (GDH).

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NÓBREGA, José Cândido da Silva. "Plano de gestão na cadeia de comercialização do mel no sertão da Paraíba." Universidade Federal de Campina Grande, 2018. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1783.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-09-24T15:02:38Z No. of bitstreams: 1 JOSÉ CÂNDIDO DA SILVA NÓBREGA - DISSERTAÇÃO PPGSA PROFISSIONAL 2018..pdf: 598498 bytes, checksum: c39669a11a1747c13a51de142da42356 (MD5)
Made available in DSpace on 2018-09-24T15:02:38Z (GMT). No. of bitstreams: 1 JOSÉ CÂNDIDO DA SILVA NÓBREGA - DISSERTAÇÃO PPGSA PROFISSIONAL 2018..pdf: 598498 bytes, checksum: c39669a11a1747c13a51de142da42356 (MD5) Previous issue date: 2018-03-12
Esse estudo apresentou o plano de gestão na cadeia de comercialização do mel no sertão da Paraíba. A empresa que se pretende abrir terá o nome fictício de MEL ORGÂNICO POMBALENSE. Ela se diferenciará das concorrentes, pois oferecerá aos consumidores produtos orgânicos. O principal motivo para esta proposta é que atualmente não há nenhuma empresa especializada na região de Pombal em mel orgânico certificado, ou pelo menos não em evidência ou quantidade, que desenvolva um trabalho semelhante, portanto acredito que estes diferenciais possam agregar valor ao processo de venda, criando uma carteira fiel de clientes satisfeitos, garantindo boa rentabilidade, sucesso e prospecção do negócio. O foco da empresa será um atendimento premium de alta qualidade para o mercado de mel orgânico, hoje em dia carente de uma gestão profissional e com foco na satisfação do cliente. Teremos venda direta de produtos no varejo para os clientes. Concluiu-se que ao vender mel no mercado, é preciso levar em consideração uma série de questões que não podemos ignorar é que muito poucos comerciantes que não têm planos econômicos e, portanto, acabam falhando, por isso temos de ter um plano econômico também definido para este tipo de negócio de venda de mel.
This study presented the management plan in the honey commercialization chain in the interior of the state of Paraíba. The company that intends to open will have the fictitious name of ORGANIC HONEY POMBALENSE. It will differentiate itself from competitors as it will offer consumers organic products. The main reason for this proposal is that currently there is no company specialized in the region of Pombal certified organic honey, or at least not in evidence or quantity, that develops a similar work, so I believe that these differentials can add value to the sales process , creating a loyal portfolio of satisfied customers, ensuring good profitability, success and business prospecting. The focus of the company will be a premium service of high quality for the market of organic honey, nowadays lacking a professional management and with focus on the satisfaction of the client. We will have direct sales of products in retail for customers. It was concluded that when selling honey on the market, we must take into account a number of issues that we can not ignore is that very few traders who have no economic plans and therefore end up failing, so we have to have an economic plan also defined for this type of business. sale of honey.

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Prill, Nadine. "Effects of environmental change on plant performance and plant-herbivore interactions." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:c58761e9-666c-4b7d-a78a-d70de7f253d4.

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Global environmental change fundamentally affects plants and their interactions with other species, and this has profound impacts on communities and ultimately ecosystems. In order to understand the mechanisms involved, we need to elaborate on the combined effects of different global change drivers on multiple levels of plant organization, including the biochemical level (production of defence compounds), the whole organism, the population, and the plant-herbivore interaction level. This thesis investigates (1) the combined effects of factors related to climate change and habitat fragmentation on Brassica nigra and (2) the effects of Zn soil pollution on the heavy metal hyperaccumulator Noccaea caerulescens at these different levels. Common garden and greenhouse experiments with B. nigra applied drought stress and elevated CO₂ to examine climate change impacts, while crossing treatments (inbreeding and between-population outbreeding) were used to investigate habitat fragmentation effects. Heterosis was lost under drought stress, and there were several interactive effects of the experimental treatments that varied within and among populations. In a greenhouse experiment with N. caerulescens, plants were grown on soil with different amounts of zinc. Plants had greater herbivore resistance when grown on Zn-amended soil, and invested more in herbivore tolerance when grown on soil without added Zn. In general, the results indicate that factors related to global environmental change have complex and interactive effects on different levels of plant organization. The findings are discussed in terms of their implications for ecology, evolution and conservation.

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Jensen, Rebekah Paige. "Plane of Energy Nutrition on Blood Metabolites, Milk Production and Lamb Growth in Friesian Sheep." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6857.

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Small ruminant species are utilized for their diverse products including meat, dairy products, and wool. Effective and humane management are essential to maintain high production rates and comfortable animals. To attain this objective, managers needs to have an extensive knowledge of husbandry techniques, understanding of physiological processes, and familiarity with nutritional requirements. We examined the effects of varying feed components on two different ruminal species. In Chapter 1, we conducted a study to evaluate"¯the effects"¯of a low metabolizable energy (LME) and high metabolizable energy (HME) diet on twenty-two Friesian/Lacuane"¯cross ewes and lamb nutritional status."¯Effects on milk production during early lactation stages"¯and the growth of the neonatal lambs were also investigated. We anticipate energy levels will have an effect on milk production and lamb growth. Our results indicate that ewes on the LME diet produced more milk with higher concentrations of fat though this group maintained lower body condition. We concluded that neither the HME nor the LME diet met the needs of the sheep due to the shift in nutrient partitioning towards milk production rather than allocating nutrients to maintaining both body condition and milk production. Limited energy requirements are further evidenced by the decline in back fat (BF) for both the HME and LME groups for the duration of the study. We determined the degradation parameters of grass hay supplemented with soybean meal (SBM) and the effects of SBM on compartment 1 (C1) ammonia and volatile fatty acid (VFA) concentrations in alpacas. Our findings show that the degradation rate was not different for dry matter (DM), but it was for crude protein (CP) (P<0.05). With this data it can be concluded that SBM can be a CP supplement when the diet is insufficient to improve microbial yield. It should be noted that care should be taken to avoid causing a protein-energy imbalance. The results of these two studies indicate shifts in nutrients availability and changes in feeding strategies can affect both the health of the animal and their subsequent offspring.

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Chen, Cameron Kai-Ming. "Analysis of the metal cutting process using the shear plane model." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/chen/ChenC1210.pdf.

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The objective of the metal cutting process is to reshape a piece of metal, or workpiece, of initial geometry into a new geometry of desired shape. Although there are a variety of ways to cut metal, this study focuses on the type of cutting where metal is sheared away from the workpiece as is commonly done with machine tools such as the lathe or mill. Typically, the correct machine settings can be found from reference guides that summarize a great amount of empirical data on metal cutting. Trial and error when combined with experience, often suffices to select the proper process parameters. The aim of this study is to predict the outcome of a metal cutting process given the properties of the workpiece, feed and cutting speed in order to understand the cutting process and predict optimum conditions. The shear plane model is well known, having been developed in the early and mid-20th century. However the empirical nature of the model and approximations made in making predictions of the metal cutting process serve to limit the usefulness of this model. A calculation routine devised by P.L.B Oxley to predict how to cut steel was created with modifications allowing predictions of the metal cutting process with any metal. A comparative study was done with 1006 steel, 6Al-4V titanium, 2024-T3 aluminum and OFE copper regarding the differences in tool forces and temperatures that would result if each metal was cut with the same process. A quantitative prediction of the metal cutting process was made for the four metals under study. Although there is no experimental data with which to evaluate these predictions, a number of case studies were performed. These case studies involved the prediction of experimental data presented in literature from other laboratories. The metal cutting model presented here has great promise as a guide to predict the best machine tool parameters.

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33

Senni, Guidotti Magnani Cosimo <1981&gt. "Prescribed mean curvature graphs on exterior domains of the hyperbolic plane." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amsdottorato.unibo.it/3074/.

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34

Dhansay, Mohamed Afzal. "Synthesis and metal binding properties of selected organophosphorus plant growth regulators." Thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/23201.

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35

Prado, Sermeño Christian Aron, and Infante Luis Miguel Quispe. "Diseño de un modelo de gestión para mejorar el proceso de corte laser en la prestación de servicios para la industria metal mecánica." Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/1308.

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La presente tesis es un trabajo de investigación para el diseño de un modelo de gestión para mejorar el proceso de corte laser en la prestación de servicios en la industria metalmecánica de la Empresa Mobilia Industrial S.A.C que se dedica a la fabricación de muebles industriales. La empresa Mobilia Industrial S.A.C cuenta con un equipo CNC de última generación para su proceso de corte de sus propias piezas industriales y lograr así un ensamblaje preciso de su productos terminados, este equipo CNC corta con tecnología laser, logrando precisión y exactitud en cada uno de sus trabajos, diferenciándose y satisfaciendo a sus clientes de manera total, alcanzando reconocimiento y posición entre las empresas dedicadas al mismo rubro. Se ha logrado posicionar de manera rápida gracias al equipo CNC, una gran ventaja competitiva. Sin embargo, la empresa es consciente de que su equipo no viene trabajando al 100% de su capacidad, por lo cuál se diviso un nicho de ingresos para la empresa ofreciendo el equipo CNC como un servicio de corte laser a otras empresas que aún vienen desarrollando sus funciones de manera empírica, creándoles muchas veces retrasos por fallas en el corte o clientes insatisfechos que generan reprocesos. Es por esto, que Mobilia implementó sus servicios con su equipo CNC, para lo cuál hemos diseñado un modelo de gestión para mejorar el proceso de corte laser en la prestación de servicios. This thesis is a research project to design a management model to improve the laser cutting process in the provision of services in the metalworking industry, of Mobilia Industrial S.A.C Company dedicated to the manufacture of industrial furniture. The company Mobilia Industrial S.A.C has a last generation CNC equipment for cutting process their own industrial and achieve precise assembly of the finished product parts, this equipment CNC laser cut so achieving precision and accuracy in each of its differentiate and making work satisfying customers totally, achieving recognition and position among the companies engaged in the same category. It has quickly established itself thanks to CNC equipment a competitive advantage. However the company is aware that his team is not working at 100% capacity, so a niche revenue for the company was spotted offering the CNC machine as a laser cutting services to other companies that are still developing their empirically functions, creating in often delays or failures in cutting dissatisfied customers that generate rework. That is why Mobilia implement its services with CNC equipment, for which we designed a management model to improve the process of laser cutting service delivery.

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36

Carvalho, João Augusto Matos de. "Análise dos resultados obtidos pelo Plano Nacional de Controlo de Resíduos nos anos 2009 e 2010." Master's thesis, Universidade de Évora, 2013. http://hdl.handle.net/10174/18318.

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O Plano Nacional de Controlo de Resíduos consiste num sistema de vigilância que visa analisar e pôr em evidência os riscos de resíduos nos géneros alimentícios de origem animal, esclarecer as razões da presença desses resíduos nos alimentos, responsabilizando todos os intervenientes da cadeia da produção. Na primeira parte da presente dissertação são abordados os diplomas legais e entidades responsáveis pela execução do plano. De seguida são abordados os diferentes grupos de substâncias pesquisados. Por fim são expostos e analisados os resultados obtidos nos anos 2009 e 2010. Observou-se um maior número de amostras colhidas em 2010, tendo-se registado no entanto um maior número de não conformidades no ano 2009, em grande parte devido à presença de coccidiostáticos em amostras de aves. Assim, observou-se 0,61% de determinações positivas em 2009 e 0,22% em 2010. É também caracterizada a importância da execução do plano com intuito de garantir a segurança dos alimentos consumidos na União Europeia e, consequentemente, a promoção das trocas comerciais; Abstract: The National Residue Control plan consists of a monitoring system which aims to analyse and highlight the risks of residues in food of animal origin, clarifying the reasons for the presence of these residues in foods, and attribute responsibility to all participants in the chain of production. The legal instruments and institutions responsible for the implementation of the plan are examined in the first part of this dissertation. Then the different groups of substances surveyed are analysed. Finally, the results obtained in the years 2009 and 2010 are exposed and commented. It was observed that there were a greater number of samples taken in the year 2010; however, most of the non-conformities were registered in 2009, mostly due to the presence of anticoccidials in poultry. Therefore, we noted the presence of 0,61% of positive determinations in 2009 and 0,22% in 2010. It is also observed the importance of implementing the plan with the aim of ensuring the safety of food consumed in the European Union and thus promote commercial trades.

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37

Thompson, Jill. "Population biology of Anthoxanthum odoratum, Plantago lanceolata and Rumex acetosa on zinc and lead mine spoil." Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329462.

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Whitebrook, J. "Heavy metal tolerance and the distribution in SW Britain of the diploid and tetraploid cytotypes of Leucanthemum vulgare Lam. (Compositae)." Thesis, University of Bristol, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372036.

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39

Van, der Waals Johan Hilgard. "Heavy metal extractability and plant bioavailability from two sacrificial biosolids soils as influenced by intensive liming." Thesis, University of Pretoria, 2005. http://hdl.handle.net/2263/27672.

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The influence of pH on metal extractability from two sacrificial soils that received large amounts of biosolids was studied in four separate trials. The soils (Soil 1: gravelly sandy loam; Soil 2: sandy clay loam) were collected from different water treatment plants in Gauteng. Both soils had undergone significant changes in physical (organic carbon content) and chemical characteristics (pH, metal and nutrient content) due to the prolonged disposal of biosolids. A preliminary pot trial was conducted where large quantities of lime were added to the soils. Results indicated that the soils had high pH buffer capacities due to low pH and high organic matter content. An unexpected increase in the metals extracted with NH4EDTA after intensive liming lead to the performing of three further trials to shed light on the phenomenon. In the second trial lime was added to the soils at four rates (0, 12, 24, 36 tons ha-1). An increase in most NH4EDTA extractable metals was found and this was correlated with increasing absorbance values (at 465 nm) of the extracting solutions (indicating increased extractability of organic matter). In the third trial limed (27 ton ha-1) and unlimed samples were incubated over a period of 20 weeks with regular sampling intervals. The NH4NO3 extractable metals decreased significantly in the lime treated soils but the NH4EDTA extractable metals generally increased. A fourth trial was conducted due to concern regarding the increased EDTA extractable metals after liming and a possible correlation with plant metal bioavailability. The soils were incubated in pots with four lime rates (0, 12, 24, and 36 ton ha-1) and wheat and spinach grown for two months. Although similar trends as for the previous trials were obtained in terms of metal extractability, plant metal content was best correlated with NH4NO3 extraction levels. The results indicate that liming is a safe option for sacrificial soils and that NH4NO3 extractable and plant metal levels decrease with liming. The use of EDTA in metal guidelines or in soil metal content studies is discouraged due to its increased metal extractability with liming and poor correlation with plant metal content.
Thesis (PhD)--University of Pretoria, 2005.
Plant Production and Soil Science
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40

Flores-Meza, Diego M. "Modeling metal uptake by barley plants (Hordeum vulgare) in nutrient solution." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 159 p, 2008. http://proquest.umi.com/pqdweb?did=1597632531&sid=49&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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41

Amaya, Elkin A. Davis D. Allen. "Fish meal replacement in practical diets for Pacific white shrimp (Litopenaeus vannamei) reared in green water systems." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Summer/Theses/AMAYA_ROJAS_25.pdf.

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42

Jones, Sarah Jane. "Metal-binding peptides in root extracts of Mimulul guttatus." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317137.

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43

Mullins, M. "Subcellular localization of metals in metal tolerant higher plants." Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384378.

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44

Markey, Justin C. Davis D. Allen. "Replacement of poultry by-product meal in production diets for the Pacific white shrimp (Litopenaeus vannamei)." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Fall%20Theses/Markey_Justin_42.pdf.

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45

Sasi, Giuma A. A. "Evaluation Of Metal Concentrations In Groundwater Nearby Soma Coal-fired Power Plant." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606756/index.pdf.

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ABSTRACT EVALUATION OF METAL CONCENTRATIONS IN GROUNDWATER NEARBY SOMA COAL FIRED POWER PLANT Giuma Sasi M.S., Department of Chmistry Supervisor: Prof. Dr. Semra G. Tuncel December 2005, 95 Pages In this work, metal pollution in groundwater near by Soma coal-fired power plant was invistigated. Coal combustion results in huge amounts of bottom ash from which metals can originate and migrate to groundwater and pollute it. Forty groundwater samples were collected from water wells in an area near by the power plant to determine 14 metals namely
Na, Ca, K, Mg, Al, Ba, Fe, Zn, Cu, Pb, Cr, Cd, Ni and V. Samples were collected in polyethylene bottles, the pH of the water was measured. Then, the samples were acidified and stored to be analyzed. FAAS, FAES, GFAAS and ICP-AES were used to determine the elements. The results were compared with the WHO, the Turkish and EC guidelines for drinking water quality. Fe concentrations in 12 wells were higher the three guidelines. Zn concentrations in 5 wells were higher than the EC guidelines, but not higher than the Turkish guidelines. Pb concentrations was less than all guilelines but it was relatively high in 8 wells. The other anthropogenic elements were lower than all guidelines but these metals tend to accumulate and they will exceed the guildlines overtime. Enrichment factor calculations showed that the anthropogenic elements were enriched in the regions close to the ash piles pointing out that the ash piles are the main source of these elements. Factor analysis was applied and four main factors of the determined metals were found indicating that the power plant and the ash piles are the main source for the anthropogenic elements.

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Crouch, Elke Monika. "Cell wall compositional differences between mealy and non-mealy ‘Forelle’ pear (Pyrus communis L.)." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6746.

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Thesis (PhD(Agric) (Horticulture))--University of Stellenbosch, 2011.
Includes bibliography.
ENGLISH ABSTRACT: Mealiness, a soft, dry textural disorder of ‘Forelle’ pear (Pyrus communis L.), is a problem for the South African fruit export industry. Soft, dry textural disorders seem to be related to changes in cell wall breakdown. The aim of this work was, therefore, to investigate the occurrence of mealiness‐associated changes in the cell wall and elucidate the mechanism by which mealiness occurs in ‘Forelle’ pear, as well as to characterise cell wall changes occurring during normal ripening. Mealy ‘Forelle’ tissues had significantly lower total galacturonic acids associated with the middle lamella (water‐ and CDTA‐soluble fractions). The water‐soluble pectin of mealy tissues was depolymerised at an earlier stage of ripening. The widespread disintegration of cell‐to‐cell adhesion in mealy cell walls only, suggests that the middle lamella and the plasmodesmata are more broken down. In mealy ‘Forelle’ tissues there was no indication of less broken down high molecular weight polyuronides in the CDTA fraction, normally associated with these dry, soft textures. The pectins from mealy tissues were more broken down and both mealy and non‐mealy tissue polyuronides depolymerised. Furthermore, there was a lack of light toluidine staining in the larger air spaces, which would indicate such water‐insoluble pectins. These data suggest that the formation of high molecular weight pectate gels is unlikely in mealy ‘Forelle’ pear. The slight increase in the galactose content in mealy tissues in CDTA‐ and Na2CO3‐soluble fractions and slight decrease in the 1 M KOH glycan fraction during later stages of ripening (6+11, 9+7, 9+11; weeks at ‐0.5°C plus days at 15°C) may indicate that galactose loosely interlinked into the glycan fraction broke down sooner for mealy tissues. This didn’t increase molecular size profiles in the CDTA fraction. Arabinose content was slightly higher in the 4 M KOH fraction and slightly lower in mealy tissues of water‐ and CDTA fractions. This did not influence the molecular weight of the glycans compared to those in the nonmealy tissues. ‘Forelle’ data therefore seem to be more congruent with a decrease in intercellular adhesion as the mechanism by which mealiness occurs, rather than the formation of high molecular weight pectins taking up the cellular fluid. ‘Forelle’ pear water‐soluble pectin content increases with increased ripening. High amounts of watersoluble pectin and low amounts of Na2CO3‐soluble pectin suggests that solubilisation of rhamnogalacturonan‐I pectins must have taken place during early ripening (at a fruit firmness of > 4.7 kg (7.9mm tip). Galactose and glucose in the pectin fraction dramatically decreased after fruit ripened to a firmness of 4.5 kg, whereafter they remained unchanged. This was also the period in which fruit softened the most and the biggest increase in pectin water‐solubility occurred. It is not known whether these events are coincidental, or linked causally. Rhamnose and arabinose extractability increased in the water fraction and xylose, fucose and mannose increased in glycan fractions with ripening. The biggest changes in polyuronide solubilisation and depolymerisation occurred in water‐ and CDTA fractions between storage and ripening durations of 3+7 (4.7 kg) and 6+4 (2.7 kg).
AFRIKAANSE OPSOMMING: Melerigheid, ŉ sagte droë tekstuur afwyking van ‘Forelle’ pere (Pyrus communis L.), is ŉ probleem vir die Suid Afrikaanse vrugte uitvoerbedryf. Sagte, droë tekstuur afwykings blyk betrekking te hê op selwandafbraak veranderinge. Die doel van die studie was dus om die melerigheid‐geassosieerde veranderinge in die selwand te ondersoek, sowel as om vas te stel wat die meganisme betrokke is by melerigheid ontwikkeling in ‘Forelle’ pere. Die selwand veranderinge gedurende normale rypwording is ook gekarakteriseer. Melerige ‘Forelle’ weefsel het betekenisvol laer totale galakturoonsuur wat geassosieer is met die middellamella (water‐ en CDTA‐oplosbare fraksies). Die water‐oplosbare pektien van melerige weefsel was op ŉ vroeër stadium van rypwording gedepolimeriseer. Die wydverspreide disintegrasie van sel‐tot‐sel adhesie, slegs in melerige selwande, dui aan dat die middellamella en die plasmodesmata meer afgebreek is. Daar is geen indikasie van hoë molekulêre massa poliuroniedes in die CDTA fraksie van melerige ‘Forelle’ weefsel, wat gewoonlik geassosieer word met droë, sagte teksture nie. Die pektiene van melerige weefsel was meer afgebreek en melerige en nie‐melerige weefsel se poliurone was gedepolimeriseer. Daar was ook geen ligte toluïdien verkleuring in die groter intersellulêre lugruimtes nie, wat ŉ aanduiding sou wees van wateronoplosbare pektiene. Hierdie data dui dus aan dat die vorming van hoë molekulêre pektien jel in melerige ‘Forelle’ pere onwaarskynlik is. Die klein toename in galaktose inhoud in die CDTA‐ en Na2CO3‐ oplosbare fraksies en ŉ klein afname in 1 M KOH glikaan fraksie tydens latere rypheidstadiums (6+11, 9+7, 9+11; weke by ‐0.5°C plus dae by 15°C), kan beteken dat los verweefde galaktose in die glikaan fraksie vroeër afgebreek het in melerige weefsels. Die molekulêre grootte profiel is nie verander in die CDTA fraksie nie. Arabinose inhoud was bietjie hoër in die 4 M KOH fraksie en bietjie laer in melerige weefsel van die water‐ en CDTA fraksies. Die molekulêre massa van die glikane was klaarblyklik onbeïnvloed hierdeur. ‘Forelle’ data blyk dus meer saam te stem met die meganisme waar ŉ vermindering in intersellulêre adhesie ŉ rol speel in melerigheid, eerder as die meganisme waar hoë molekulêre pektien selvloeistowwe bind. ‘Forelle’ peer water‐oplosbare pektieninhoud neem toe met toenemende rypheid. Hoë vlakke wateroplosbare pektien en lae vlakke Na2CO3‐oplosbare pektien stel voor dat die oplossing van rhamnogalakturonan‐I pektiene gedurende vroeë rypwording moes plaasgevind het (by ŉ fermheid van > 4.7 kg (7.9mm punt). Galaktose en glukose in die pektienfraksie het drasties verminder nadat vrugte tot ŉ fermheid van 4.5 kg ryp geword het, waarna hul onveranderd gebly het. Dit was ook die periode waarin vrugte die meeste sag geword het en die grootste toename in poliuronied wateroplosbaarheid gevind is. Dit is nie bekend of die gebeure toevallig of oorsaaklik verbind is nie. Rhamnose en arabinose ekstraheerbaarheid het vermeerder in die water fraksies, en xylose, fukose en mannose het vermeerder in die glikaan fraksies gedurende rypwording. Die grootste verandering in oplosbaarheid en depolimerisasie het plaasgevind in die water‐ en CDTA fraksies tussen opberging en rypwordingsperiodes van 3+7 (4.7 kg) en 6+4 (2.7 kg).

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47

Lima, Leonardo Warzea [UNESP]. "Selenium and sulfur: mitigation in plant stresses." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/138897.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
As plantas não possuem mecanismos de defesa específicos para combater a diversidade de estresses abióticos e poluentes do ambiente, e sua sobrevivência depende da flexibilidade e adaptação dos seus próprios mecanismos de defesa naturais. Além disso, a manutenção da homeostase celular depende de vários mecanismos interligados e complexos, enquanto o sistema de defesa celular não segue um padrão específico de ação e pode ainda variar devido a vários fatores tais como a espécie do vegetal, o tempo de exposição ao estresse, o estágio de desenvolvimento da planta e também nos diferentes órgãos e tecidos analisados. Com base nessas considerações, esta dissertação teve como objetivo destacar e investigar o papel do Enxofre (S) e do Selênio (Se) contra diferentes estresses nas plantas, através das respostas enzimáticas, não enzimáticas e também outros mecanismos de defesa relacionados. No primeiro capítulo, o autor caracteriza os mecanismos bioquímicos gerais da defesa celular antioxidante, especificamente a formação das espécies reativas de oxigênio (EROs) e suas singularidades químicas e o estresse oxidativo induzido, o sistema de defesa antioxidante enzimático, especificamente as enzimas Superóxido Dismutase (SOD) e a Catalase (CAT), os mecanismos não-enzimáticas contra o estresse, incluindo o ciclo Aascorbato-Glutationa, a GSH (glutationa reduzida), as fitoquelatinas e também a formação de prolina. O estado nutricional da planta durante o estresse é crucial a fim de manter uma resposta de defesa adequada. Em vista disso, o capítulo dois apresenta uma revisão sobre a participação de Enxofre (S) na defesa contra o estresse. Este nutriente tem um papel importante em processos fundamentais, tais como o transporte de elétrons, estrutura, regulação, produção de oxigênio fotossintético, resistência a estresses abióticos e bióticos e no metabolismo secundário. Além disso, alguns elementos químicos são considerados benéficos para as plantas, no qual o Selênio (Se) é o mais relevante. No capítulo três, o autor descreve o papel do Se na amenização do estresse induzido pela contaminação por metais pesados, suas poderosas características antioxidantes, a melhoria da atividade de enzimas antioxidantes e também dos mecanismos globais de defesa. O capítulo quatro consiste em um projeto científico conduzido pelo autor. O objetivo deste estudo foi investigar se o Selênio, sob a forma de selenito (Na2SeO3), é capaz de evitar a absorção, translocação e concentração de cádmio (CdCl2), em diferentes tecidos no tomate, indicando os possíveis mecanismos para amenizar o estresse, bem como também analisar o estado geral dos frutos através das análises nutricionais, peso seco, pigmentos e concentração de Prolina livre. Os resultados demonstram que efeito atenuante do Se em tomateiro submetido ao Cd poderia estar relacionado com a restrição da absorção e translocação de Cd2+, aumentando a concentração de micronutrientes nos frutos e, finalmente, aumentando a concentração de prolina livre nos frutos.
Plants do not have specific defense mechanisms to counteract the diverse range of abiotic stresses and pollutants into the environment, and its survival depends on the flexibility and adaptability of its own natural defense mechanisms. Furthermore, the maintenance of cellular homeostasis depends on several interlinked and complex mechanisms, while the cellular defense system does not follow a specific pattern of action and may differ due to various factors such as plant species, exposure time to the stress, plant developmental stage, different organs and tissues analyzed. In the light of these considerations, this dissertation aimed to highlight and investigate the role of Sulfur and Selenium against different plant stresses, through the enzymatic and non-enzymatic plant responses and other related defense mechanisms. In the first chapter the author characterize the general biochemical mechanisms of the antioxidant cell defense, specifically the reactive oxygen species (EROs) formation and its chemical singularities and the induced oxidative stress, the enzymatic antioxidant defense system, specifically the superoxide dismutase (SOD) and Catalase (CAT) enzymes, the non-enzymatic mechanisms against the stress, including the Ascorbate-Glutathione cycle, the GSH (reduced glutathione), the phytochelatins and also proline formation. The plant nutritional status during the stress is crucial in order to maintain a proper defense response. In view of this, the chapter two is a published review about the participation of Sulfur (S) on the stress defense. This nutrient has a role in fundamental processes such as electron transport, structure, regulation and it is also associated with photosynthetic oxygen production, abiotic and biotic stress resistance and secondary metabolism. Moreover, few chemical elements are considered benefic to plants, while Selenium (Se) is the most relevant. In the chapter three the author describes the role of Se to detoxify the stress induced by heavy metal contamination, its powerful antioxidant characteristics and the improvement of the antioxidant enzymes activity and overall defense mechanisms. The chapter four consists of a scientific project conducted by the author. The aim of this study was to investigate whether Selenium, under the form of selenite (Na2SeO3), may avoid the uptake, translocation and concentration of Cadmium (CdCl2), in different tomato tissues, indicating possible mechanisms to counteract the stress, as well as to analyze the fruits overall status through the nutritional analyses, dry weight, pigments and proline concentration. The results demonstrate that alleviating effect of Se in tomato under Cd contamination could be related to restriction of Cd2+ uptake and translocation, enhancing micronutrient concentration in fruits and, finally, enhancing fruit proline concentration.
CAPES: 445978/2014-7

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48

Kerr, John. "Phytoremediation of metal-contaminated soils by industrial crops." Thesis, University of Glasgow, 2003. http://theses.gla.ac.uk/5369/.

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Linum usitatissimum (flax), Brassica napus var. oleifera (oilseed rape), Miscanthus x giganteus (miscanthus) and Urtica dioica (nettle) were investigated to assess their potential as phytoremediation crops. Germination experiments using flax and oilseed rape established that seedling germination was not inhibited by exposure to metals in solution except at the highest concentrations considered. Germination was, however, not a reliable indicator of plant metal tolerance as metal toxicity to emerged seedlings was evident in contaminated soil treatments exhibiting good germination rates. Four plant species were grown in soils containing six metals at both highly and marginally spiked levels, to reproduce genuine contaminated soils whilst allowing the study of each metal in isolation. A sewage sludge treated soil with a high metal and organic matter content was also included in the study. Miscanthus was the species most tolerant of the highly contaminated soils. The highest tissue concentrations recorded in plants exposed to the highly contaminated soils were (969 mg Zn/kg) in stems of miscanthus and (919 mg Cd/kg) in stems of nettle, but plant growth in these soils was generally poor. The plant species survived well in the sewage sludge soil, although metal uptake from this matrix was low. Oilseed rape and nettle accumulated the highest tissue metal concentrations in the study of marginally contaminated soils. Indeed the highest tissue concentration recorded for plants grown in all of the soils was found in nettle grown in the marginally contaminated Zn soils (1937 mg/g). Miscanthus, was able to remove a greater weight of metal from the soil owing to its higher biomass, despite having a lower tissue metal concentration than the other species. Flax, miscanthus, nettle and oilseed rape have been shown to have potential to act as part of a phytoremediation programme, however, more work with these crops is required before film advice can be given on commercial application of the crops in contaminated land remediation.

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49

Leja, Marek. "Ocenění společnosti po schválené reorganizaci - ocenění společnosti MSV Metal Studenka a.s." Master's thesis, Vysoká škola ekonomická v Praze, 2016. http://www.nusl.cz/ntk/nusl-264556.

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The aim of my diploma thesis is to estimate the market value of the company MSV Metal Studénka, a. s. as of 31st December 2015. The evaluated company produces large variation of steel forgings, pressings and railcar components. The thesis will bring financial analysis of the company and based on strategic analysis and value drivers of the company the financial plan will be drawn up. The valuation of the company will be estimated using income methods of discounted cash flows APV adding market comparison method specifically called similar public company method.

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50

Meirelles, Luiza de Azevedo. "Plano de marketing para a empresa Marechal Alimentos." Master's thesis, Instituto Superior de Economia e Gestão, 2018. http://hdl.handle.net/10400.5/16659.

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Mestrado em Marketing
O presente projeto tem como objetivo a elaboração de um plano de marketing para a empresa Marechal Alimentos, que atua no setor do retalho alimentar no Brasil, nomeadamente no mercado de carne bovina. A empresa, fundada em 1991, insere-se atualmente no segmento B2B e busca operar no mercado B2C através do lançamento de um comércio eletrónico como novo canal de vendas. A metodologia utilizada é de caráter exploratório baseado em uma pesquisa mista, tanto qualitativa quanto quantitativa. Com o objetivo de obter informação acerca do comportamento de compra do consumidor de carne bovina, foi realizado um inquérito. Já para obter informações acerca da organização, foram realizadas entrevistas semiestruturadas. Acredita-se que uma parceria colaborativa com a empresa investigada traz benefícios ao estudo, portanto, a estratégia de action research foi adotada como a melhor opção. Perante este enquadramento, buscou-se identificar os fatores que afetam o comportamento de compra online do consumidor de carne. A realização do diagnóstico da empresa foi fulcral para a melhor compreensão da sua envolvente operacional e estratégica. Os resultados encontrados auxiliaram o desenvolvimento de estratégias e táticas em um plano de marketing coerente e consistente com os objetivos da empresa.
The purpose of this project is to develop a marketing plan for the company Marechal Alimentos, which engages in the food retail sector in Brazil, namely in the meat industry. The company, founded in 1991, is currently part of the B2B segment and seeks to operate in the B2C market through the launch of an e-commerce as a new sales channel. The methodology used was an exploratory research based on a mixed methods analysis, both qualitative and quantitative. A survey was carried out in order to obtain information about consumer behavior in the online meat purchase. The information about the company itself was acquired through semi-structured interviews with the partners. It is believed that a collaborative partnership between the researcher and the investigated company brings benefits to the study, so the action research strategy was adopted as the best option to be followed. Given this framework, it was intended to identify key factors that affect the online consumer behavior of meat consumers. Nevertheless, a company diagnosis was imperative for a better understanding of its operational and strategic environment. The results found assisted the development of the strategies and tactics in this marketing plan to be both coherent and consistent with the company's goals.
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