Made available in DSpace on 2014-06-11T19:22:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-02-03Bitstream added on 2014-06-13T20:48:35Z : No. of bitstreams: 1 furtado_mb_me_botfca.pdf: 393078 bytes, checksum: def48bccd2c07da6fc33ce1966be2848 (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A cultura do milho constitui um dos principais insumos para o segmento produtivo, porém, a sua produtividade é considerada baixa devido a inúmeros fatores que ainda precisam ser estudados, dentro os quais pode-se citar materiais genéticos adequados a cada região, densidade de semeadura, manejo do solo, dentre outros. Assim, com o objetivo de avaliar o desempenho de cultivares de milho com composições genéticas distintas, cultivadas em espaçamento reduzido, com variação no número de plantas por unidade de área, em sistemas de preparo de solo que variaram a intensidade e a profundidade de mobilização, realizou-se a presente pesquisa. O experimento foi desenvolvido na Fazenda Experimental Lageado da Faculdade de Ciências Agronômicas/UNESP-Campus de Botucatu, no ano agrícola de 2003/2004. O delineamento experimental utilizado foi o de parcela sub-subdividida, com 8x2x3 e quatro repetições, sendo os fatores de variações oito maneiras de preparo de solo, dois cultivares de milho e três populações de plantas. Os tratamentos com preparo de solo utilizados foram: T1- plantio direto em todas as safras; T2- arado de disco em todas as safras, trabalhando à profundidade de 0,20 a 0,25 m; T3- grade pesada em todas as safras, trabalhando à profundidade de 0,15 a 0,18 m; T4- escarificador em todas as safras, trabalhando à profundidade de 0,35 m; T5- arado de disco em duas safras sendo o escarificador na terceira safra, trabalhando à profundidade de 0,20 a 0,25 m; e T6- grade pesada em duas safras e arado de disco na terceira safra, T7- grade pesada em duas safras e escarificador na terceira safra, e T8- grade pesada na primeira safra, escarificador na segunda e arado de disco na terceira safra. O preparo secundário do solo foi feito com a passagem por duas vezes de grade niveladora trabalhando à profundidade de 0,10 a 0,13 m em todos os tratamentos, excetuando-se o plantio direto... / The corn crop is one of the mail materials to the productive segment. However, the productivity is considered low due to many different factors which need to be better studied, like genetic materials appropriated to each region, density sowing, soil tillage, among others. The objective of this study was the evaluation of the performance with corn cultivars a different genetic composition. These plants were planted in a reduced row width , with a variation in number of plants number by unit of area, in soil tillage systems that changed both the intensity and the deph of mobilization. The experiment was carried out in the Experimental Lageado Farm of the Agronomic Science College, UNESP-Botucatu-SP in 2003/2004. The experimental design used was the randomized blocks in split-splitplot, with 8x2x3 and four repetitions. The variation factors were 8 ways soil evaluation, two corn cultivars and three plant populations. The treatment with soil tillage used were:T1-no tillage in every harvest; T2-disc plowing in every harvest, working in depth of 0,20 to 0,25 m; T3- heavy harrowing in every harvest ,working in depth of 0,15 to 0,18 m; T4- chisel plow in every harvest, working in depth of 0,35 m; T5- disc plowing in twice harvest and chisel plow in the third, working in depth of 0,20 to 0,25 m; T6- heavy harrowing in twice harvest and disc plowing in the third; T7- heavy harrowing in twice harvest and chisel plow in the third, and T8- heavy harrowing in the first harvest, chisel plow in the second and disc plowing in the third, working in depth of 0,15 to 0,18 m. The secondary soil tillage was done passing the material twice by the level harrowing working in depth of 0, 10 to 0,13 m in every treatment, except the no tillage. The corn cultivars used were: The hybrid AG9010 and the variety AL34 and the populations were of 50000, 70000 and 100.000 plants.ha-1...(Complete abstract click electronic access below)

Made available in DSpace on 2014-06-11T19:22:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-24Bitstream added on 2014-06-13T20:09:12Z : No. of bitstreams: 1 kotz_te_me_botfca.pdf: 968190 bytes, checksum: 119c23ab2e85aae9ad01231c5bfccc3c (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Com o lançamento de cultivares adaptados à colheita mecanizada, a ricinocultura tem-se tornado economicamente viável em médias e grandes propriedades, inclusive como opção para o período de safrinha, em rotação com outras culturas graníferas. Contudo, ainda existem muitas dúvidas a respeito da influência da população de plantas em espaçamentos reduzidos, no crescimento e desempenho dessas cultivares. Dessa forma, o objetivo do presente trabalho foi avaliar o crescimento e a produtividade da cultivar de mamona IAC 2028 na safrinha, em função da população de plantas em espaçamento reduzido. Foi conduzido um experimento por dois anos (2009 e 2010), em Botucatu-SP. O delineamento experimental foi o de blocos casualizados, com quatro repetições. Os tratamentos foram constituídos por cinco populações de plantas (50.000, 65.000, 80.000, 95.000 e 110.000 plantas ha-1), no espaçamento entre fileiras de 0,45 m (reduzido), e um tratamento adicional (com população de 25.000 plantas ha-1 e espaçamento entre fileiras de 0,90 m). Durante o ciclo da cultura foram avaliadas, a cada 14 dias, a altura das plantas, diâmetro do caule, número de folhas vivas, área foliar, acúmulo e distribuição da massa de matéria seca, área foliar específica, razão de área foliar, índice de área foliar, taxas de crescimento absoluto e relativo e taxa assimilatória líquida. No final do ciclo foram avaliadas algumas características agronômicas e produtividade de grãos. O aumento da população de plantas reduziu o crescimento da mamoneira IAC 2028 na safrinha. Em maiores populações de plantas a mamoneira apresentou maior índice de área foliar e acúmulo de matéria seca por área. As taxas de crescimento absoluto de área foliar e massa seca foram mais elevadas sob menores populações de plantas... / With the release of cultivars adapted to mechanical harvesting, the castor cultivation has become economically viable in medium and large farms, as well like a option for out-of-season (fall-winter) and grain crop rotation. However, there are still many questions about the influence of plant populations narrow row spacing, growth and performance of current cultivars. Thus, the objective of this study was to evaluate the growth and productivity of castor cultivar IAC 2028 in second season, according different population of plants for the narrow row spacing. A study was carried for two years in out-of-season (2010 and 2011), in Botucatu-SP. Randomized block was used with four replications. The treatments were five plant populations (50,000, 65,000, 80,000, 95,000 and 110,000 plants ha-1), with 0.45 m row spacing (narrow), and an additional treatment with a population of 25,000 plants ha-1, with conventional row spacing (0.90 m). During the crop development were evaluated every 14 days, the following growth variables plant height, stem diameter, number of living leaves, leaf area, accumulation and distribution of dry matter, specific leaf area, leaf area ratio, leaf area index, relative and growth rates and net assimilation rate. At the end of season were evaluated some agronomic characteristics and grain yield. The increase in plant population reduced the growth of the castor bean IAC 2028 out-of-season. Highest populations reached higher leaf area index and dry matter accumulation per area. The absolute growth rates of leaf area and dry weight were higher in narrow row spacing populations and larger row spacing, when environmental conditions were more favorable for growth plant. The absolute... (Complete abstract click electronic access below)

Made available in DSpace on 2014-06-11T19:22:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2003-08-12Bitstream added on 2014-06-13T20:48:39Z : No. of bitstreams: 1 pantano_ac_me_ilha.pdf: 148095 bytes, checksum: 6375fc44ef1291c02d75eb391adaccd9 (MD5) / A integração agricultura-pecuária permite uma proteção do solo nos períodos de seca, um retorno financeiro com a criação do gado e/ou plantio da lavoura, e ainda, contribui com o sucesso do plantio direto e com a viabilização econômica de diversas propriedades rurais. Visou-se estudar em plantio direto, a possibilidade da antecipação do plantio de braquiária consorciada com milho, visando a produção de forragens para a integração agricultura–pecuária e a formação de palhada, bem como avaliar os efeitos deste consórcio sobre a cultura do milho neste sistema. O ensaio foi instalado na Fazenda de Ensino e Pesquisa da FE/UNESP, em um LATOSSOLO VERMELHO Distrófico típico argiloso, A moderado, hipodistrófico álico, caulinítico, férrico, compactado, muito profundo e moderadamente ácido (LVd). Utilizou-se sementes de milho híbrido AG-8080 precoce (60.000 sementes/ha) e de capim braquiária brizanta certificada (20kg/ha). O delineamento experimental foi o de blocos ao acaso, com parcelas subdivididas, constituído de 2 tratamentos principais (Tratamento A: espaçamento entre linhas de milho de 0,90m; Tratamento B: espaçamento entre linhas de milho de 0,45m) e 5 secundários (Tratamento1: sem consorciação (testemunha); Tratamento 2: braquiária na linha do milho semeada junto com o adubo de plantio; Tratamento 3: braquiária à lanço (área total), na época de plantio do milho; Tratamento 4: braquiária na entrelinha do milho semeada junto com o adubo de cobertura; Tratamento 5: braquiária à lanço, na época de cobertura do milho, com 4 repetições. Avaliou-se: atributos físicos do solo (densidade e porosidade do solo); atributos químicos do solo; análise foliar da cultura do milho; cobertura morta do solo, incidência de plantas daninhas, características agronômicas das culturas do milho (Estande inicial e final, número de... / The agriculture-pasture integration provides a soil covering during dry periods, a financial refund raising cattle and/or doing agriculture and still contributes for the success of the no-till and for the economical viability of many rural properties. The purpose of the present work was to study under no-till, the possibilities of anticipating the Brachiaria seeding associated with corn, expecting the forage production for the agriculture-pasture integration and straw formation, as well as to evaluate the effects of this association to the corn. The experiment was carried out on the Research and Teaching Farm of UNESP– Campus de Ilha Solteira/SP, in a red Latosol, loamy dystrophic, moderated A, iron, compacted, very deep and moderately acid. It was used precocious hybrid seeds of AG-8080 (60.000 seeds/ha) and certified seed of Brachiaria brizantha (20kg/ha). The outline used was the randomized blocks with split plot composed of two main treatments ( Treatment A: distance of corn rows - 0,90m; Treatment B: corn rows distance–0,45m), and 5 secondary (Treatment1: with no association (witness); Treatment 2: Brachiaria seeded on corn’s row mixed with the fertilizer during the sowing of corn; Treatment 3: Brachiaria spread on total area during corn sowing; Treatment 4: Brachiaria seeded between corn rows mixed with the fertilizer during the fertilization coverage; Treatment 5: Brachiaria spread on total area during de fertilization coverage of corn, with 4 repetitions. The following evaluations were done: soil physical attributes (bulk density and porosity); chemical attributes; corn leaf analysis; soil coverage, weed infestation, corn agricultural characteristics (stand at the beginning and at the end, number of spike/ha, number of grain lines/spike, number of grain/spike, mass of 1000 grains, grain production and production of dry mass) and for brachiaria (stand, soil coverage ...

Thesis. 1977. M.Arch.--Massachusetts Institute of Technology. Dept. of Architecture. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH. / Bibliography : leaves 88-89. / by Philip G. Freelon. / M.Arch.

Made available in DSpace on 2017-07-10T17:37:27Z (GMT). No. of bitstreams: 1 Marcio Leandro Goncalves.pdf: 390674 bytes, checksum: e9135f2628f32cffc80e45f13f950692 (MD5) Previous issue date: 2008-12-12 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A study was conducted with the objetive to evaluate the effect of spacing between the plantation rows (0.45, 0.68 and 0.90 m) on plants population density of (50.000, 60.000, 70.000 and 80.000 plants ha-¹) about the grain productivity of three hibrid corn (Zea mays L.) A field experiment was conducted from September 10 to April 10/2008 in three different environments with different height, in Goioerê, Toledo and Cascavel localized in the west of Parana State. The design utilized was of randomized blocks into subdivided parcels. The spacing were placed in the main parcel and the population density and hybrids in sub parcels in a factorial schema. Biometric variables such as plant height, height of insertion of the first spike and diameter of stem and the components of production, number of rows, number of grains per spike, mass of grains per spike, the mass spike and productivity, were evaluated. Was no effect of row spacing, obtaining the maximum grain yield with the spacing of 0.57 m between rows, regardless of location. There was positive interaction between the environmental effect of plant population. The positive response to the increase of population in the Toledo plant was directly related to the level of soil fertility. In Cascavel Goioerê and no significant difference to the increase in population from 50,000 to 80,000 plants ha-1. In all locations the hybrid AS 1570 showed higher productivity of hybrid AS 1565 and AS 1575 / Com objetivo de avaliar o efeito do espaçamento entre linhas de plantio (0,45; 0,68 e 0,90 m), sob quatro densidades populacionais (50.000, 60.000, 70.000 e 80.000 plantas ha-1), sobre a produtividade de grãos de três híbridos de milho ( Zea mays L.) em três ambientes com diferentes altitudes, foram conduzidos experimentos de campo nos municípios de Goioerê, Toledo e Cascavel, ambos no estado do Paraná na região oeste no período de 10 de setembro de 2007 a 10 de abril de 2008. O delineamento utilizado foi de blocos ao acaso dispostos em parcelas subdivididas. Os espaçamentos foram alocados na parcela principal e as densidades populacionais e híbridos nas subparcelas no esquema fatorial. Foram avaliadas as variáveis biométricas: altura de planta, altura de inserção da primeira espiga e diâmetro de colmo e os componentes da produção: número de fileiras, número de grãos por espiga, massa de grãos por espiga, massa de espiga e produtividade. Houve efeito do espaçamento entre linhas, obtendo o máximo rendimento de grãos com o espaçamento de 0,57 m entre linhas, independente do local. Houve interação positiva entre ambientes ao efeito de população de plantas. A resposta positiva ao aumento de população de plantas de Toledo foi diretamente relacionado ao nível de fertilidade do solo. Em Goioerê e Cascavel não houve diferença significativa ao aumento de densidade populacional de 50.000 a 80.000 plantas ha-1. Em todos os locais o híbrido AS 1570 apresentou produtividade superior aos híbridos AS 1565 e AS 1575

Svetlana Fortner-Henderson grew up experiencing abuse, sexual assault, and drug and alcohol abuse within the home. She suffered hearing loss as a child, which impacted her education. She went to college, attended graduate school, and worked in the field of environmental toxicology and regulatory compliance. She volunteered in many capacities that influenced her calling to become an educator. She agreed to teach were she was ‘called,’ as she considers that as the implementation of ministry of social justice through science education. She teaches in a high-trauma, deep inner-city setting, where students have experienced similar types of trauma that she experienced. She follows the lives of three students that derive from various backgrounds. These backgrounds contribute to the assets, strengths, and opportunities for growth socially and academically for these students. Svetlana is able to use the tools inherent and applied to educate the three students to benefit other students that have similar opportunities for educational and social/emotional growth. Svetlana deeply reflects on the impact she has made with her students and opportunities she sees for continued personal development within the profession. During her ethography, she modifies and massages her techniques in order to extact quality and usable content, as she seeks to be an effective teacher within a high trauma and high risk school and community. She also modifies her techniques as she believes in continuous improvement of herself and the students she has chosen to work with.

在行列設計(row-column design)的架構下，當行總和與列總和皆為總試驗處理數的倍數時，我們考慮行效果與列效果的相互比較之最適性。延續Shah和Sinha(1993)的結果，在給定行總和及列總和的情況下，我們導出達成齊一最適設計(uniformly optimal design)的充分條件。此外，當總實驗單位固定時，達成全域最適設計(universally optimal design)的充分條件亦被求出。我們同時列舉許多相關的設計排列法。 / We consider the problem of comparing row effects and column effects in the row-column design setup when the row sizes and column sizes are all multiples of the number of treatments. Following the work of Shah and Sinha (1993), we derive a sufficient condition for uniformly optimal designs for given values of the row sizes and column sizes. We also derive a sufficient condition for universally optimal designs when the total number of experimental units is fixed. Several examples of designs with high efficiencies are provided.

Today, invasive coronary angiography is still the gold standard to perform the diagnosis of coronary artery disease. But it is an invasive procedure that carries non negligible morbidity (1.5%) and mortality (0.15%), and results in high costs. Less invasive and more cost-effective techniques are highly desirable. Over the past 15 years, substantial advances have been made in non-invasive cardiac imaging. In the first part of this work, we prospectively evaluated the diagnostic accuracy of 40-slice multidetector CT (MDCT) to detect coronary artery disease prior to cardiac valve surgery in 82 patients. On a per-patient basis, MDCT correctly identified 14/15 patients with (sensitivity 93%) and 60/67 patients without coronary disease (specificity 90%). Performing invasive angiography only in case of abnormal CT might have avoided invasive angiography in 60/82 (73%) patients without coronary disease. Thus, MDCT could be potentially useful in the preoperative evaluation of such patients, allowing to avoid systematic cardiac catheterization in a large number of patients. Magnetic resonance coronary angiography (MRCA) has also emerged as a promising alternative due to the lack of ionizing radiation and absence of iodinated contrast injection. Therefore, we compared diagnostic accuracy of whole-heart MRCA and MDCT, against QCA, to identify >50% stenosis basis in 77 patients. WH-MRCA acquisition failed in a high number of patients. This was caused by an unstable breathing pattern or drift of the diaphragm position. Because of higher success rate, MDCT had higher diagnostic accuracy than WH-MRCA to detect coronary stenosis. Thus MDCT is superior to WH-MRCA, however WH-MRCA can perform as well as CT in interpretable segments with adequate image quality. In the second part of this work, to evaluate whether MDCT and cardiac magnetic resonance (cMR) might allow simultaneous assessment of aortic valve area (AVA), we compared measurements of AVA by MDCT to cMR, transesophageal and transthoracic echocardiography. AVA by MDCT and cMR correlated highly with AVA by other techniques. In our study, we compared 3 planimetric approaches to AVA calculated by the continuity equation using TTE. We did observe excellent correlations between planimetric and continuity equation-derived AVA, but all 3 planimetric measures were found to overestimate continuity equation AVA. A potential explanation for this observation could be that we measure different aortic valve orifices. Indeed planimetric techniques measure the true dimensions of the anatomical orifice, whereas the continuity equation measures the "effective" orifice area. The ability of MDCT and cMR to accurately assess aortic valve area at the time of non-invasive coronary imaging, places these techniques in a strong position for the comprehensive assessment of such patients. However, despite these good results, it must nonetheless be emphasized that to be acceptable in daily clinical practice, a strategy in which invasive coronary angiography would not be performed systematically but rather selectively in only a subset of patients, requires a perfect sensitivity for disease detection in individual patients. Unfortunately, the present work shows that MDCT and WH-MRCA have not yet reached such a level of accuracy. Finally, these tests are not a substitute for other imaging techniques in all cardiovascular conditions. Unlike an echocardiogram machine, the MRI and MDCT scanners cannot be brought to the bedside of an acutely ill patient.

This thesis describes and evaluates a new approach to optimizing DRAM performance and energy consumption that is based on eagerly writing dirty cache lines to DRAM. Under this approach, dirty cache lines that have not been recently accessed are eagerly written to DRAM when the corresponding row has been activated by an ordinary access, such as a read. This approach enables clustering of reads and writes that target the same row, resulting in a significant reduction in row activations. Specifically, for 29 applications, it reduces the number of DRAM row activations by an average of 38% and a maximum of 81%. The results from a full system simulator show that for the 29 applications, 11 have performance improvements between 10% and 20%, and 9 have improvements in excess of 20%. Furthermore, 10 consume between 10% and 20% less DRAM energy, and 10 have energy consumption reductions in excess of 20%.

The single-row facility layout problem (SRFLP) is concerned with finding the optimal linear placement of n departments with different lengths in a straight line. It is typically achieved by minimizing the cost associated with the interactions between the departments. The semidefinite programming (SDP) relaxation model that incorporates cutting planes proposed recently by Anjos, Kennings, and Vannelli (AKV) was considered a breakthrough in the field. This thesis presents a new SDP model AKV' and compares the two relaxations. The AKV' is largely based on the previous model, but it reduces the number of linear constraints from O(n³) to O(n²). Therefore, it reduces the computing time at the expense of a slightly weaker lower bound. However, AKV' is observed to pay off as the instance size increases. By examining the gap for both the AKV and AKV' relaxations, we notice that both relaxations generate very small gaps at the root node, which demonstrates the effectiveness of the relaxations. Six different strategies are presented to separate the cutting planes for the medium-sized SRFLP. In combination with the two SDP relaxations, we compare the six strategies using three instances of different characteristics. An overall best strategy is deduced from the computational results, but the best choice of relaxations and the best number of cuts added at each iteration changes depending on the characteristics of the instances. Two new cutting plane strategies are proposed for large instances. This allows the solution to optimality of new instances with 36 departments, which is higher than previously published results in literature. We also briefly point out how the computing time can vary greatly between different sets of data of the same size due to the characteristics of the department lengths.