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DBSCAN is a density-based clustering algorithm that is known for being able to cluster irregular shaped clusters and can handle noise points as well. For very large sets of data, however, this algorithm becomes inefficient because it must go through each and every point and look at its neighborhood in order to determine the clusters. Also, DBSCAN is hard to implement in parallel due to the structure of the data and its sequential data access. The Sow and Grow algorithm is a parallel, density-based clustering algorithm. It utilizes a concept of growing points in order to more efficiently find clusters as opposed to going through every point in the dataset in a sequential order. We create an initial seed set of variable size based on user input and a dynamic growing points vector to cluster the data. Our algorithm is designed for shared memory and can be run in parallel using threads. For our experiments, multiple datasets were used with a varying number of points and dimensions. We used this dataset to show the significant speedup the Sow-and-Grow algorithm produces as compared to other parallel, density-based clustering algorithms. On some datasets, Sow-and-Grow achieves a speedup of 8 times faster than another density-based algorithm. We also looked at how changing the number of seeds affects the results in terms of runtime and clusters discovered.

The goal of the thesis is to analyse the current condition of technical facilities in order to plan expansion of production. Next goal is to analyse the motivation of workers to accept changes. The theoretical part defines coaching, force of habit and method GROW, which is used in coaching. In the practical part there are coaching interviews with chosen employees of the chosen company. On the basis of interviews it is shown how to remove potential barriers that hinder the smooth implementation of changes, and recommendations for introduction of changes are suggested.

Made available in DSpace on 2014-06-11T19:30:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-10-23Bitstream added on 2014-06-13T20:20:56Z : No. of bitstreams: 1 farinha_jtv_dr_botfca.pdf: 1265147 bytes, checksum: c22178a23947feb01985e4fb831eb20a (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Com o objetivo de quantificar os depósitos da calda de pulverização através de diferentes pontas e volumes de pulverização nos estádios V3 (3 folhas verdadeiras) e R1 (inicio da floração) de soja, foram conduzidos dois experimentos na área didática do Departamento de Produção Vegetal, pertencente à Faculdade de Ciências Agronômicas UNESP- Botucatu/SP. Cada experimento constitui-se nas cultivares CD 208 e CD 216 (crescimento determinado e indeterminado respectivamente) Os tratamentos avaliados foram: pontas de jato plano (AI 110015 a 150 L ha-1, AI 11002 a 200 e 250 L ha-1); pontas de jato plano duplo (TJ 60 11002 a 150, 200 e 250 L ha -1); pontas de jato cônico (TX-6 a 150, TX-8 a 200 e TX-10 a 250 L ha-1) e pontas de jato plano duplo e baixa deriva (DGTJ 110015 a 150 e DGTJ 11002 a 200 L ha-1), estas últimas avaliadas somente no estádio de R1. O delineamento utilizado foi de blocos ao acaso com quatro repetições. As aplicações foram realizadas com um pulverizador costal pressurizado a CO2, munido de barra com quatro pontas distanciadas de 0,5 m entre si, no momento em que cada cultivar alcançou os estádios V3 e R1. Para a avaliação da deposição foi utilizado na pulverização como traçador o corante Azul Brilhante 2 FD&C-1 (500 mg.L-1). De cada repetição foram coletadas 25 plantas, às quais foram adicionadas 100 ou 200 mL de água destilada para a extração do traçador , nos estádios V3 e R1, respectivamente. A determinação dos depósitos foi realizada por espectrofotometria e a leitura de absorbância no comprimento de onda de 630 nm. Os dados foram transformados em valores de depósitos por grama de massa seca e ajustados às curvas de regressão pelo modelo de Gompertz. O cálculo da moda foi realizado para determinar os valores de depósitos de máxima freqüência. Os resultados indicaram que a deposição... / This study aimed to quantify spraying deposits in two soybean cultivars (208 CD and CD 216) at V3 stage (3 true leaves) and R1 stage (beginning of the budding) through different nozzles and volumes of spraying. For this purpose, two experiments, one with each cultivar, were conducted in the didactic area of the Agricultural Department, Agricultural College UNESP- Botucatu/SP consisting in eleven treatments: flatfan ( AI 110015 at 100 L ha-1, AI 11002 at 150 and 200 L ha-1); twin flat-fan nozzle (TJ 60 11002 at 150, 200 and 250 L ha -1); conical nozzle (TX-6 at 150, TX-8 at 200 and TX-10 at 250 L ha-1) and twin flat-fan and low drift nozzle (DGTJ 110015 at 150 and DGTJ 11002 at 200 L ha-1), these last ones only in the growth stadium of R1. The experimental design was randomized block, with four replicates. A CO2 - pressurized sprayer with a 0,5 m distance between nozzles was used. Deposition was evaluated by using 500 mg.L-1 of Brilliant Blue dye FD&C-1 in the spraying . At V3 and R1 grown stages, 25 plants were collected in each replication respectively, and by adding 100 and 200 mL of distilled water then courante was extracted. Deposited content was determined by spectrophotometry reading the absorbance at 4 630 nm wave length and data transformed into deposits per gram of dry matter. Gompertz model was used to adjust regression curves and ANOVA to determine deposits values of maximum frequency. Results indicated that deposition was superior at V3 stage for both cultivars being 2 and 3,5 superior than deposition at R1 for CD 208 and CD 216, respectively. In cultivar CD 208 at V3 stage, deposition was superior in treatments with the highest volume of 250 L.ha-1 independently the nozzle used and with the TX 8 nozzle using 200 L.ha-1 The higher variation between the unitary deposits was observed for the TJ nozzles with 150 and 200 L.ha-1 . At R1, all treatments except... (Complete abstract click electronic access below)

The purpose of this study was to describe the perceptions middle school students had about agriculture and gardening as part of the GrOW (Gardening and Overall Wellness) Program. This included multiple constructs, including students’ gardening efficacy, perceptions of those who had already completed the GrOW Program, perceptions of those who had not completed the GrOW Program, and students’ future interests in gardening. The population for this study was sixth-grade students at the Partnership Middle School in Starkville, Mississippi. A quantitative instrument was used to assess the perceptions of the students (n = 222). Overall, students had positive perceptions about the GrOW Program. They believed it would help them in being able to assist their families in raising a garden. Students understood that watering and weeding were important in keeping a garden healthy, and they liked being outdoors. Several recommendations for future research were revealed through this study. Surveying other middle schools that also have gardening programs with similar and different demographics would provide a complete evaluation of gardening perceptions. For future studies on this program, having sixth-grade students complete the survey at the beginning and end of the school year would provide a more detailed view of what the students perceptions of the GrOW Program were for that school year. Finally, since students’ views tend to change over time, a longitudinal study to better explain student perceptions of agriculture and gardening. The GrOW program has potential in serving as a model and providing resources for other schools wanting to develop a curriculum-based gardening program.

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In my diploma thesis I analyse coaching as a method of learning and development of employees. The main points of theoretical part are the Inner Game and GROW method. In practical part of my thesies I concider how coaching works in two different international companies in the Czech Republic - T-Mobile CZ and DHL Express CZ. Last part of my thesis contains confrontation of both companies.

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Lentilhas d´água são as menores angiospermas aquáticas monocotiledôneas, as quais são classificadas em duas subfamílias (Lemnoideae e Wolffioideae) que contemplam trinta e sete espécies representando cinco gêneros: Spirodela, Landoltia, Lemna, Wolffiella e Wolffia (APPENROTH; BORISJUK; LAM, 2013; BORISJUK et al ., 2015; FAO, 1999; LANDOLT, 1992, LES et al ., 2002). Essas plantas apresentam rápida reprodução vegetativa o que implica no acúmulo acelerado de carboidratos e proteínas, que por sua vez, confere uma enorme aplicação industrial e biotecnológica, especialmente na bioenergia (APPENROTH; BORISJUK; LAM, 2013; FAO, 1999). O balanço de carbono no crescimento relaciona-se com à assimilação fotossintética, armazenamento e consumo desses compostos, que são influenciados pela intensidade de luz (SMITH; STITT, 2007; STITT; ZEEMAN, 2012). O maior dreno de carbono assimilado é para a síntese de parede celular e sacarose, portanto, conhecendo a composição dos polissacarídeos e suas interações junto com o conteúdo de carboidratos não estruturais impacta a produção de combustíveis alternativos. O presente trabalho visou quantificar e analisar os carboidratos estruturais (açúcares de parede celular apiose, arabinose, fucose, ramnose, glicose, xilose, galactose e manose) e não estruturais (açúcares solúveis e de armazenamento sacarose, frutose, rafinose, glicose e amido) de três espécies de Lemnoideae e duas Wolffioideae comparando com as taxas de crescimento dessas plantas. / Duckweeds are the smallest aquatic monocots classified in two subfamilies (Lemnoideae and Wolffioideae) that contemplates thirty-seven species representing five genera: Spirodela, Lemna, Landoltia, Wolffia and Wolffiella . These plants display fast vegetative reproduction, which implies a rapid accumulation of carbohydrates and protein, conferring them biotechnological and industrial applications, especially in bioenergy. Carbon balance among growth is related to photosynthetic assimilation, storage, and consume of compounds which are influenced by light intensity. The major sink of the carbon assimilated is to cell wall and sucrose synthesis, thereby knowing the polysaccharides composition and their interactions together with the non-structural carbohydrates content may impact the alternative fuels production. The present work aimed to quantify and comparative analyze structural (cell wall sugars apiose, arabinose, fucose, rhamnose, glucose, xylose, galactose, and mannose) and nonstructural (storage and soluble sugars starch, sucrose, glucose, raffinose, and fructose) carbohydrates of three Lemnoideae and two Wolffioideae species correlating to its growth rates.

O estado de São Paulo destaca-se como o maior produtor nacional de banana (Musa spp.), com sua produção comercial tradicionalmente concentrada na região do Vale do Ribeira e no Litoral Paulista. No entanto, os cultivos se estenderam a partir da década de 1990 para o Planalto Paulista, onde agricultores buscavam uma maior diversificação das atividades agrícolas. A prevalência do cultivo com cultivares tradicionais tem sido desafiadora devido à suscetibilidade dessas às principais doenças. Objetivou-se avaliar dois novos híbridos tetraplóides (AAAB) resistentes à Sigatoka amarela (Mycosphaerella musicola, Leach), a \'BRS Platina\' e a \'BRS Princesa\', comparando-os com a cultivar comumente utilizada, a \'Prata-anã\' (AAB). No entanto, a adoção de novos híbridos de bananeira não se estabelece apenas pela sua resistência às doenças. Dessa forma, variáveis vegetativas, variáveis de rendimento do cacho e suas correlações, duração do ciclo e qualidade pós-colheita dos frutos também foram avaliadas. O experimento foi conduzido no município de Piracicaba-SP (latitude: 22 43\' 30\'\' S, longitude de 47 38\' 56\'\' O e altitude de 554 metros), que possui clima classificado como Cwa, com chuva predominante no verão e período mais seco e frio no inverno. O delineamento experimental foi o de blocos ao acaso, com a adoção de três repetições e a parcela composta por três plantas. Quanto às avaliações da qualidade pós-colheita dos frutos, o delineamento experimental adotado foi o inteiramente casualizado, 12 dias de armazenamento, três repetições, cada qual constituída por três frutos. Os resultados foram submetidos à análise estatística de variância e ao teste de Tukey a 5% de significância; análise de correlação com base na correlação de Pearson e análise de regressão a 5% de significância. De acordo com os resultados obtidos, conclui-se que as cultivares BRS Platina e BRS Princesa apresentam maior resistência à Sigatoka amarela em relação à cultivar Prata-anã, porém não diferem quanto ao rendimento do cacho. Quanto ao crescimento vegetativo, destaca-se o maior porte apresentado pelas novas cultivares, BRS Platina e BRS Princesa, podendo conferir às essas cultivares maior suscetibilidade ao tombamento, principalmente devido a frequência de ventos fortes na região. Em relação ao ciclo de produção as cultivares não diferem entre si. Quanto à qualidade pós-colheita dos frutos, as bananas \'BRS Platina\' apresentam um amadurecimento mais acelerado e, consequentemente, senescência dos frutos. Somente a cultivar BRS Platina apresenta correlação positiva entre variáveis vegetativas e produção. / São Paulo state stands out as the main producer of banana (Musa spp.). The commercial production is mostly concentrated at Vale do Ribeira region and São Paulo coast. However, at the 1990 decade Banana cultivation started spreading towards the Paulista plateau where farmers sought cropping diversification. Maintaining the use of traditional cultivars has been challenging due to their susceptibility to main diseases.This study aimed evaluating two recently breed tetraploids hybrids (AAAB), \'BRS Platina\' and \'BRS Princesa\' resistant to yellow Sigatoka (Mycosphaerella musicola, Leach), comparing it to the commonly used \'Prata-anã\' cultivar (AAB). Knowing that the adoption of a new hybrid does not take place by simply considering its resistance to diseases, the evaluation of vegetative parameters, bunch yield and its correlations, cycle duration and post-harvest quality of the fruits were necessary. The study was installed in Piracicaba-SP (latitude: 22 43\' 30\'\' S, longitude de 47 38\' 56\'\' W e altitude of 554 meters), with Cwa climate classification where most rain occurs during summer and the winter is dry and cold. The adopted experimental desing was randomized blocks, with three replicates and three plants per plot. The post-harvest evaluations took place in a complete randomized desing, with three replicates and plots composed of three bananas. The results were submitted to analysis of variance and Tukey test at the level of 5% of significance; Pearson correlation analysis and regression analysis. The most valuable results related, the \'BRS Platina\' and \'BRS Princesa\' demonstre higher resistance to yellow Sigatoka when compared to \'Prata-anã\' but there are no difference in yield as a result of the components of the bunch of each cultivar. The news cultivars have pseudostem taller than \'Prata-anã\'. In terms of post-harvest quality, bananas \'BRS Platina\' has early fruit maturation, when compared to the others, and consequently sooner beginning off fruit decease process. Only the \'BRS Platina\' has positive correlation between vegetative and production parameters.