Literature reports that test anxiety may have an influence on aptitude test performance for some racial groups and therefore serves as a source of bias (Zeidner, 1998). Testing organisations have also found that individuals from African groups perform poorly on measures of fluid intelligence, putting them at a disadvantage when these scores are used for selection and training purposes. The current study examines a model defining the relationship between test anxiety, attentional resources and fluid intelligence in the following manner: an increase in test anxiety will result in a decrease of attentional resources as well as a decrease in fluid intelligence. With a decrease in attentional resources we will see a negative influence on fluid intelligence and test performance for different racial groups. Twenty-five African individuals and twenty-five individuals from Caucasian racial groups have set the stage to answer the question if certain groups experience higher test anxiety and thus perform poorly on fluid intelligence measures. Significant relationships were found, within and between groups, for attentional resources and fluid intelligence. Meanwhile, other factors, such as test anxiety, were not strongly associated with fluid intelligence performance. Future research into reasons why certain racial groups display lower overall attention in testing situations is suggested in order to ensure that tests for selection and training and aptitude tests are fair to all racial groups. / Psychology / M.A. Soc. Sc.(Psychology)

Made available in DSpace on 2015-10-06T13:02:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-07-24. Added 1 bitstream(s) on 2015-10-06T13:19:23Z : No. of bitstreams: 1 000849258.pdf: 2226814 bytes, checksum: ca063d8bb02a6e7f91015b7d956c1ded (MD5) / O Brasil é o maior produtor mundial de cana-de-açúcar, devido a expansão de áreas cultivadas, a adubação mecanizada torna-se muito importante para o aumento do desempenho operacional nesta cultura, porém esta adubação pode demonstrar alguns problemas na distribuição de fertilizantes, como a não realização da caracterização dos fertilizantes por meio do ângulo de repouso, granulometria e densidade dos nutrientes, entre outros. Dessa forma, torna-se necessário o desenvolvimento de novas tecnologias que possibilitem uma melhora na aplicação de fertilizantes na cultura da cana-de-açúcar. À vista disso, um novo conceito de adubadora está em desenvolvimento considerada como protótipo, pois esta realiza aplicação individualizada de nitrogênio, fósforo e potássio proporcionando maior eficiência na distribuição destes em relação às outras adubadoras. Com este trabalho o objetivo foi avaliar aplicação mecanizada de N-P-K individualizada na cultura da cana-de-açúcar. O experimento foi desenvolvido no município de Matão em área de cana-de-açúcar pertencente à Fazenda Cascavel, possuindo 1,66 ha aproximadamente de área experimental. O delineamento experimental foi Inteiramente Casualizado (DIC), com três tratamentos e trinta repetições por tratamento. Este delineamento foi estabelecido conforme os critérios do controle de qualidade, sendo o monitoramento das variáveis realizado durante a operação de adubação. Ao final do período de avaliação foram coletados 90 pontos amostrais no total, sendo 30 pontos por tratamento. Os tratamentos foram: 1- Adubação mecanizada, sem aplicação de herbicida; 2- Operação conjugada (aplicação simultânea de herbicida e adubação); e 3- Duas operações (aplicação separada de herbicida e adubo). Concluiu-se que a melhor qualidade operacional por meio das cartas de controle foi o tratamento 3, sendo duas operações (aplicação separada de herbicida e adubo)... / The Brazil is the largest producer of sugarcane, due to expansion of cultivated areas, mechanized fertilizer becomes very important for the increase in operating performance in this culture, but this fertilization may show some problems in the distribution of fertilizers, so that when not performing the characterization of fertilizers through the angle of repose, particle size and density of nutrients, among other. Thus, it becomes necessary to develop new technologies that enable an improvement in the application of fertilizers in the cultivation of sugarcane. In view of this, a new concept of fertilizer in development considered as a prototype because this performs individualized application of nitrogen, phosphorus and potassium, providing greater efficiency in the distribution of these over other fertilizer machine. With this work the objective was to evaluate the mechanical application of NPK individualized culture of sugarcane. The experiment was conducted in the Matão municipality in the area of sugarcane belonging to the Fazenda Cascavel, possessing approximately 1.66 ha experimental area. The experimental design was completely randomized (DIC), with three treatments and thirty replications for treatment. This design was established according to the criteria of quality control, and monitoring of variables held during fertilization operation. At the end of the evaluation period were collected 90 sample points in total, with 30 points per treatment. The treatments were: 1- mechanized fertilized, without herbicide; 2- Operation combined (simultaneous application of herbicide and fertilizer); and 3- Two operations (separate application of herbicide and fertilizer). It was concluded that the best operational quality through control charts was the third treatment, two operations (separate application of herbicide and fertilizer) for presenting less variability. The right side of fertilizer machine was the best for having applied ...

Made available in DSpace on 2014-06-11T19:32:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-12-13Bitstream added on 2014-06-13T19:02:46Z : No. of bitstreams: 1 000748429.pdf: 2069123 bytes, checksum: b45ab08e57c410c9d5df9bf6f9d8e339 (MD5) / O Brasil é líder mundial na produção de cana-de-açúcar e o maior exportador mundial de açúcar. O aumento da produtividade da cana-deaçúcar se deve a vários fatores sendo um dos principais a obtenção de novas cultivares e a interpretação da interação genótipo por ambiente (GEI), realizado nos estágios finais de seleção dos programas de melhoramento genético de cana-de-açúcar, torna-se essencial durante o processo de obtenção de novos cultivares. Para poder selecionar os melhores genótipos frente à GEI, os genótipos são avaliados em diversos ambientes (locais e anos) e há o interesse em saber qual o melhor genótipo, baseado no desempenho fenotípico de caracteres de interesse, como, por exemplo, a tonelada de cana por hectare (TCH), que é a principal medida de produtividade de cana-de-açúcar. Sendo a GEI um complicador para o melhorista durante a seleção de genótipos superiores, faz-se necessário a utilização de modelos matemáticos ou estatísticos que consigam identificar de maneira eficiente tais genótipos superiores. Geneticistas e biometristas tem utilizado diversos métodos, porém, não existe um consenso. Assim, neste trabalho, a partir de um estudo de simulação realizado no ambiente computacional R, apresenta-se uma comparação entre três métodos: (i) Eberhart-Russel; (ii) AMMI; (iii) e modelo misto (REML / BLUP). Verificou-se a eficiência de cada método na detecção da GEI e discutiu-se as particularidades de cada um deles do ponto de vista estatístico. No total, simularam-se sessenta e três casos os quais consideraram as mais diversas condições para a introdução da GEI, sendo que, cada um dos três métodos, avaliaram mais do que trinta e quatro milhões e vinte mil dados. Assim, a partir dos resultados encontrados neste trabalho pode-se concluir que cada método detecta a GEI de uma maneira diferente e possui suas limitações... / Brazil is the world leader in sugarcane production, and the largest sugar exporter. Developing new varieties is one of the main factors that contribute to yield increase, and the interpretation of genotype-by-environment interaction (GEI) at the final selection stage is an important consideration in yield estimation. In order to select the best genotypes, varieties are tested in different environments (locations and years), and breeders need to estimate the phenotypic performance for principle traits such as tons of cane yield per hectare (TCH). Since GEI affects breeder selection of superior genotypes it is necessary to use mathematical or statistical models that account for GEI and are able to efficiently identify such genotypes. Geneticists and biometricians have used different methods and there is no clear consensus of the best method. In this paper we present a comparison of three methods, viz. (i) Eberhart-Russel; (ii) AMMI; (iii) and mixed model (REML / BLUP), in a simulation study performed in the R computing environment to verify the effectiveness of each method in detecting GEI, and assess the particularities of each method from a statistical standpoint. In total, 63 cases representing different conditions were simulated, generating more than 34 million data points for analysis by each of the three methods. The results illustrated that each method detects GEI in a different way, and each has some limitations. All three methods detected GEI effectively, but the mixed model showed higher sensitivity. When applying GEI analysis in practice it is important to first verify the assumptions inherent in each model, and respect these limitations in choosing the method to be used

Made available in DSpace on 2014-06-11T19:32:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-12-06Bitstream added on 2014-06-13T18:43:26Z : No. of bitstreams: 1 000748635.pdf: 2633150 bytes, checksum: 7049121c4a2017ccb0f9a3a31ed2514b (MD5) / A cana-de-açúcar (Saccharum spp.) é a cultura mais aplicada para a produção de açúcar tanto para consumo interno quanto para exportação, além da produção de etanol e biomassa. A área de cultivo vem crescendo expressivamente, fato que leva melhoristas a buscar genótipos mais produtivos às diferentes áreas de plantio. Experimentos em multi ambientes são comumente conduzidos em programas de melhoramento de plantas principalmente para avaliação de genótipos potenciais para produção. Este estudo incluiu 16 genótipos de cana-de-açúcar em 14 locais e avaliados por quatro anos, ou seja, quatro cortes (cana planta, primeira, segunda e terceira soca). O objetivo foi investigar a adaptabilidade e estabilidade dos genótipos de cana-de-açúcar para o atributo Tonelada de Pol por Hectare (TPH) em experimentos multi ambientais a partir de três metodologias estatísticas: Regressão linear fenotípica conjunta (E-R), Norma de reação (NR) e Média harmônica da performance relativa do valor genotípico (MHPRVG). Os valores da herdabilidade média genotípica estimados via MHPRVG apresentaram-se altos, o que leva a altas acurácias na seleção genotípica (superiores a 90%). Os genótipos IACSP963076, IACSP963048 e IACSP985024, primeiro corte, IACSP963048, IACSP963076, IACSP962073 e IACSP985024, segundo corte, IACSP962073, IACSP962008 e IACSP963076, terceiro corte e IACSP963076, IACSP985024, IACSP962073 e IACSP962008, quarto corte, foram os selecionados quando se considera os atributos de estabilidade, adaptabilidade e produtividade (TPH), simultaneamente e, portanto, são os genótipos recomendados para o plantio nesta macro região estudada quando analisadas via MHPRVG. Em termos de valores médios, os genótipos recomendados pela seleção simultânea baseada na MHPRVG são os genótipos IACSP963076, IACSP962073, IACSP985024 e IACSP962008, alcançando um valor médio de 2,8% acima... / The sugarcane (Saccharum spp.) is the most applied crop in the sugar yielding as much as internal consumption as exportation, besides its application in yielding alcohol and biomass production. The crop area has been increased expressively leading breeders to search more yielding genotypes to the different planted areas. Multi-environment trials are commonly conducted in plant breeding programs to evaluate potential genotypes mainly to yield. This study included 16 sugarcane genotypes at 14 locations evaluated in four years, that is, four harvests (sugarcane plant, first, second and third ratoon). The objective was to investigate the sugarcane's genotype adaptability and stability to Ton of Pol per Hectare (TPH) attribute in multi-environments trials from three statistical methodologies: Joint phenotypic linear regression (E-R), Reaction norm (NR) and Harmonic average performance relative breeding values (MHPRVG). The estimated genotypic average heritabilities values via MHPRVG showed themselves as high, what lead to high accuracy in the genotypic selection ( higher than 90%). The genotypes IACSP963076, IACSP963048 and IACSP985024, first harvest, IACSP963048, IACSP963076, IACSP962073 and IACSP985024, second harvest, IACSP962073, IACSP962008 and IACSP963076, third harvest and IACSP963076, IACSP985024, IACSP962073 and IACSP962008, fourth harvest, were the selected when one considers simultaneously the stability, adaptability and productivity (TPH) attributes and thereby them are the recommended genotypes to be planted in this studied macro region when analyzed via MHPRVG. In a mean expression, the recommended genotypes by simultaneous selection based in MHPRVG are the IACSP963076, IACSP962073, IACSP985024 and IACSP962008 genotypes, reaching a average value of 2.8% higher than the four harvests overall mean. The percentage of selection ranking from both approach was 31, 44, 50 and 56% at the ...

Made available in DSpace on 2015-06-17T19:34:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-12-19. Added 1 bitstream(s) on 2015-06-18T12:48:28Z : No. of bitstreams: 1 000825476.pdf: 2129640 bytes, checksum: 776235849b47c4f8e270a1869fa3f3d4 (MD5) / O propósito desta dissertação é analisar a implantação da ferramenta Controle Estatístico de Processo (CEP) para a gestão de operações de uma empresa do setor alimentício. Para tanto, realizou-se uma fundamentação que compreende: o Controle de Qualidade, a Variabilidade do Processo e o CEP. Esta fundamentação teórica apoiou o presente estudo de caso, consequentemente, foi possível descrever e discutir todas as etapas de aplicação da ferramenta no contexto de iplementação de um novo sistema de Gestão. Em adição, sugerir a proposta de um roteiro para auxílio na implantação da ferramenta CEP em processos de manufatura. Os resultados permitem constatar que as ferramentas que compõe um pacote corporativo podem não ser eficazes, quando esta não é analisada quanto à sua dimensão teórica de aplicabilidade no local a ser utilizado. Outro ponto constatado nos resultados é a necessidade de formalizar uma norma padrão de aplicabilidade de ferramentas de gestão, evitando a ocorrência de erros comuns de erros comuns, como, a não existência de um estudo para identificar não apenas a característica da qualidade, mas quais equipamentos ou pontos de operação devem ser monitorados pela ferramenta contida no Sistema de Gestão / The purpose of this dissertation is to analize the implentation of the SPC (Statistical Process Control) for the management of operations in a food company. Furthermore, it was performer a theoretical review that includes: Quality Control, Process Variability and SPC. This theoretical review supported this case study, and it has possible to describe and discuss all the steps of deployment the tool in the new System of Management. In addition, to suggest a proposal of a guide to aid the implementation of the SPC in manufacturing processes. The results reveal that comprise a corporative guide may not be effective, when this is not analyzed in a techinical dimension of applicability on the local to be used. Moreover, the point observed in the results, all the System of Management need to formalize a standard applicatibility of management tools, avoiding common mistakes; for instance, non-existence of a study to identify which equipment or point of operatio must be monitored

Made available in DSpace on 2015-06-17T19:34:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-02-20. Added 1 bitstream(s) on 2015-06-18T12:47:09Z : No. of bitstreams: 1 000829820.pdf: 1310627 bytes, checksum: eb12274765f51baf4d64fce97b2fe834 (MD5) / Informações a cerca da capacidade da operação, eficiência de colheita e desempenho da colhedora são de grande importância no gerenciamento de sistemas mecanizados agrícolas, auxiliando nas decisões a serem tomadas pela administração visando a sua otimização. Neste sentido objetivou-se neste trabalho avaliar os tempos, movimentos e a qualidade da operação da colheita mecanizada de soja em diferentes formatos de talhões, utilizando-se como indicadores de qualidade parâmetros de desempenho operacional da colhedora e variáveis representativas dos aspectos agronômicos da cultura, por meio de ferramentas de controle estatístico de processo. A colheita mecanizada foi realizada na fazenda localizada no município de Uberaba, MG e o delineamento experimental utilizado foi inteiramente casualizado, sendo realizadas 18, 28 e 24 repetições para os talhões irregular, retangular e trapezoidal, respectivamente. Os tratamentos foram estabelecidos a partir dos formatos dos talhões. Monitoraram-se as atividades da colhedora (colheita, descarga, manutenção e paradas climáticas). As variáveis e/ou indicadores de qualidade avaliados para o desempenho da colhedora foram: velocidade de deslocamento, rotação do motor, rotação do cilindro e abertura do côncavo. Na determinação das perdas foram utilizadas armações circulares confeccionadas com aros de 0,33 m², que juntos totalizam a área de aproximadamente 1,00 m². As perdas determinadas foram perdas na plataforma, perdas dos mecanismos internos, perdas totais e perdas em relação à produtividade. A eficiência gerencial (Eg) e o tempo de manobra (Tm) apresentam os melhores resultados para o talhão trapezoidal e para o talhão retangular, respectivamente. O desempenho da colhedora é considerado capaz de atingir os limites específicos estabelecidos, para os indicadores de qualidade velocidade e rotação do cilindro, ambos para o talhão trapezoidal. Os parâmetros do ... / The harvesting operation is considered the most expensive method and the major determinants in the production and soybean profitability, and information about the capacity of the operation, harvest efficiency and performance of the harvester are of great importance in the management of agricultural mechanized systems, assisting in the decisions to be taken by the administration in order to optimization. In this sense we aimed in this study to evaluate the times, movements and the quality of mechanical soybean harvesting operation on different sizes of plots, using as indicators of quality operating performance parameters of the harvester and representative variables of agronomic aspects of culture, by means of statistical process control tools. Mechanized harvesting was carried out at the farm located in Uberaba, Minas Gerais and the experimental design was completely randomized, being held 18, 28 and 24 repetitions for irregular plots, rectangular and trapezoidal, respectively. The treatments were established from the stands formats. Were monitored the activities of the harvester (harvest, unloading, handling and climate charts). The variables and / or indicators of assessed quality for combine harvester performance were: forward speed, engine speed, cylinder speed and concave opening. In determining losses circular frames were used made with 0.33 m² hoops, which together total area of approximately 1.00 m². The losses were determined header losses, losses of internal mechanisms, total losses and losses in relation to productivity. The format of the blocks affects the time efficiency and combine movements and the quality of mechanical soybean harvesting operation. The parameters of soybean mechanical harvesting process are presented for the three plots unable evaluated the short- and long-term

abstract: This research is aimed at studying the impact of building design parameters in terms of their importance and mutual interaction, and how these aspects vary across climates and HVAC system types. A methodology is proposed for such a study, by examining the feasibility and use of two different statistical methods to derive all realistic ‘near-optimum’ solutions which might be lost using a simple optimization technique. DOE prototype medium office building compliant with ASHRAE 90.1-2010 was selected for the analysis and four different HVAC systems in three US climates were simulated. The interaction between building design parameters related to envelope characteristics and geometry (total of seven variables) has been studied using two different statistical methods, namely the ‘Morris method’ and ‘Predictive Learning via Rule Ensembles’. Subsequently, a simple graphical tool based on sensitivity analysis has been developed and demonstrated to present the results from parametric simulations. This tool would be useful to better inform design decisions since it allows imposition of constraints on various parameters and visualize their interaction with other parameters. It was observed that the Radiant system performed best in all three climates, followed by displacement ventilation system. However, it should be noted that this study did not deal with performance optimization of HVAC systems while there have been several studies which concluded that a VAV system with better controls can perform better than some of the newer HVAC technologies. In terms of building design parameters, it was observed that ‘Ceiling Height’, ‘Window-Wall Ratio’ and ‘Window Properties’ showed highest importance as well as interaction as compared to other parameters considered in this study, for all HVAC systems and climates. Based on the results of this study, it is suggested to extend such analysis using statistical methods such as the ‘Morris method’, which require much fewer simulations to categorize parameters based on their importance and interaction strength. Usage of statistical methods like ‘Rule Ensembles’ or other simple visual tools to analyze simulation results for all combinations of parameters that show interaction would allow designers to make informed and superior design decisions while benefiting from large reduction in computational time. / Dissertation/Thesis / Masters Thesis Built Environment 2015

Orientador: Rouverson Pereira da Silva / Banca: Carlos Eduardo Angeli Furlani / Banca: Diego Augusto Fiorese / Resumo: Informações a cerca da capacidade da operação, eficiência de colheita e desempenho da colhedora são de grande importância no gerenciamento de sistemas mecanizados agrícolas, auxiliando nas decisões a serem tomadas pela administração visando a sua otimização. Neste sentido objetivou-se neste trabalho avaliar os tempos, movimentos e a qualidade da operação da colheita mecanizada de soja em diferentes formatos de talhões, utilizando-se como indicadores de qualidade parâmetros de desempenho operacional da colhedora e variáveis representativas dos aspectos agronômicos da cultura, por meio de ferramentas de controle estatístico de processo. A colheita mecanizada foi realizada na fazenda localizada no município de Uberaba, MG e o delineamento experimental utilizado foi inteiramente casualizado, sendo realizadas 18, 28 e 24 repetições para os talhões irregular, retangular e trapezoidal, respectivamente. Os tratamentos foram estabelecidos a partir dos formatos dos talhões. Monitoraram-se as atividades da colhedora (colheita, descarga, manutenção e paradas climáticas). As variáveis e/ou indicadores de qualidade avaliados para o desempenho da colhedora foram: velocidade de deslocamento, rotação do motor, rotação do cilindro e abertura do côncavo. Na determinação das perdas foram utilizadas armações circulares confeccionadas com aros de 0,33 m², que juntos totalizam a área de aproximadamente 1,00 m². As perdas determinadas foram perdas na plataforma, perdas dos mecanismos internos, perdas totais e perdas em relação à produtividade. A eficiência gerencial (Eg) e o tempo de manobra (Tm) apresentam os melhores resultados para o talhão trapezoidal e para o talhão retangular, respectivamente. O desempenho da colhedora é considerado capaz de atingir os limites específicos estabelecidos, para os indicadores de qualidade velocidade e rotação do cilindro, ambos para o talhão trapezoidal. Os parâmetros do ... / Abstract: The harvesting operation is considered the most expensive method and the major determinants in the production and soybean profitability, and information about the capacity of the operation, harvest efficiency and performance of the harvester are of great importance in the management of agricultural mechanized systems, assisting in the decisions to be taken by the administration in order to optimization. In this sense we aimed in this study to evaluate the times, movements and the quality of mechanical soybean harvesting operation on different sizes of plots, using as indicators of quality operating performance parameters of the harvester and representative variables of agronomic aspects of culture, by means of statistical process control tools. Mechanized harvesting was carried out at the farm located in Uberaba, Minas Gerais and the experimental design was completely randomized, being held 18, 28 and 24 repetitions for irregular plots, rectangular and trapezoidal, respectively. The treatments were established from the stands formats. Were monitored the activities of the harvester (harvest, unloading, handling and climate charts). The variables and / or indicators of assessed quality for combine harvester performance were: forward speed, engine speed, cylinder speed and concave opening. In determining losses circular frames were used made with 0.33 m² hoops, which together total area of approximately 1.00 m². The losses were determined header losses, losses of internal mechanisms, total losses and losses in relation to productivity. The format of the blocks affects the time efficiency and combine movements and the quality of mechanical soybean harvesting operation. The parameters of soybean mechanical harvesting process are presented for the three plots unable evaluated the short- and long-term / Mestre

Thesis (MTech (Business Administration))--Cape Peninsula University of Technology. / The paradigm shift from administrative to strategic Human Resource Management (HRM) has, arguably, necessitated the need for a more objective and quantitative HRM that shows how HRM interlinks with strategic organisational outcomes. Consequently, HR metrics, measurements and analytics can be tools, which can give HRM a status and position that is similar to other functional departments in organisations that provide numerical data. The purpose of this study was to explore HRM factors that are critical to determine strategic HR metrics. The purpose arose owing to documented scholarship, which argues that the current regime of HR metrics has no appeal to top management; is composed of too many metrics that are confusing; is suitable for traditional HRM; and does not give HRM a strategic status. The objective of the study was, therefore, to provide HR factors that link with strategic or organisational level outcomes and based on these factors, determine a metric that HR practitioners and top management can adopt as standard. The literature review had to be merged in a systems theory framework to develop the conceptual framework to start a grounded theory methodology. Within this methodology both secondary and primary data was collected and analysed. As part of its summary, the literature review included a meta study of prominent research on the HRM-firm performance relationship. The mini meta-analysis involved 27 studies whose mean coefficient of determination was calculated to show the strength of the variability in firm performance for which HRM accounted. This analysis revealed that HRM, on average, accounted for 31% of the variability in firm performance in the models that were used to investigate the relationship. An analysis was conducted of documents as part of a content analysis to collect secondary data, while questionnaires were used to collect primary data. The key finding was that the strategic HR factors are the HRM outcomes, namely employee engagement, commitment, satisfaction and embeddedness, while the HR metric that connects the HR factors and strategic outcomes is given as p=kH+c, where p is organisational performance, H are the HR factors, k is a constant of proportionality, and c is basic employee performance. It was also found that employee engagement had the most impact on organisational performance, relative to the other HR factors. As a result, the key recommendation made in this study is that organisations should use employee commitment, engagement, satisfaction and embeddedness to boost performance with special attention on employee engagement. The metric p=kH+c can be used to measure the level at which HR factors boost performance.

Orientador: José Ricardo Sturaro / Banca: Gilda Carneiro Ferreira / Banca: César Augusto Moreira / Resumo: A viabilidade econômica da exploração de um depósito mineral envolve diversas variáveis, como teor e volume do minério, método de lavra, infraestrutura e mão de obra próxima à localização do depósito. Desta forma, se faz necessário quantificar os recursos minerais para reduzir o risco financeiro do empreendimento. A área de estudo está inserida na porção sudoeste do Greenstone Belt de Pilar de Goiás, constituída por uma sequência de metassedimentos químicos, metassedimentos clásticos, pequenos corpos intrusivos e rochas gnáissicas. As ocorrências de ouro estão associadas às camadas de clorita e grafita xistos. O objetivo deste trabalho consiste em caracterizar a distribuição espacial dos teores de ouro da mina Pilar de Goiás-GO, utilizando as técnicas de Krigagem Ordinária e Simulação Sequencial Gaussiana. O trabalho teve início com a validação do banco de dados dos furos de sondagens e a regularização das amostras para o comprimento de um metro. Com base nas descrições dos furos de sondagens, obteve-se a atitude das camadas dos litotipos, constituindo o modelo geológico que foi elaborado no programa Leapfrog Geo®. As amostras conferidas foram então submetidas às análises estatísticas e geoestatísticas. Em ambas as técnicas, realizou-se a modelagem dos variogramas e do elipsoide de busca dos dados. Para a krigagem ordinária, a filtragem restringiu os dados ao intervalo de 0 a 4,38 ppm, sendo que os outliers foram substituídos pelo valor máximo de teor. Verificou-se que os resultados obtidos pela krigagem são válidos, pois respeitam a distribuição de frequência dos dados originais. A análise da superfície do comportamento dos teores regionais permitiu concluir que não há uma direção preferencial de crescimento de teores de ouro, porém esta superfície... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The economic viability of a mineral deposit exploration involves many variables, such as content and ore volume, mining method, infrastructure and workers next to the location of the deposit. It is necessary to quantify the mineral resources to reduce the financial risk of the project. The study area is located in the southwest portion of the greenstone belt of Pilar de Goias, which is composed of a sequence of chemical and clastic metasediments, small intrusive bodies and gneissic rocks. The gold occurrences are associated with layers of chlorite schist and graphite. The objective of this study is characterize the spatial distribution of gold grades in the Pilar de Goiás mine (GO) by the Ordinary Kriging and Simulation Sequential Gaussian methods. The study started with the database validation of boreholes and the regularization of samples for the length of one meter. Based on the descriptions of the boreholes, it was obtained the attitude of the layers of rock types and, therefore, the geological model, developed in the Leapfrog Geo® program. The checked samples were then used for the statistical and geostatistical analyses. In both methods, the variograms were modeled and the search ellipsoid was defined. For Ordinary Kriging, the data filter restricted to the range 0 to 4.38 ppm and the outliers were replaced by the maximum content value. The results of kriging are valid because the frequency distribution is consistent with the original data. The analysis of the surface containing the higher levels implied that there is no preferential direction of growth of gold content, but this surface follows the regional foliation of the host rocks. The estimation by Simulation Sequential Gaussian were effective to model the layer of interest, which are the highest gold grades / Mestre