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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Determina??o de macro e micro nutrientes de frutos de Moringa ole?fera Lamark (parede interna e externa da casca) e sementes

Vieira, Gleilson de Fran?a 28 March 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-10-02T23:06:39Z No. of bitstreams: 1 GleilsonDeFrancaVieira_DISSERT.pdf: 2881693 bytes, checksum: de019e4ae58bc0869e88a50dad98acb6 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-10-06T23:52:19Z (GMT) No. of bitstreams: 1 GleilsonDeFrancaVieira_DISSERT.pdf: 2881693 bytes, checksum: de019e4ae58bc0869e88a50dad98acb6 (MD5) / Made available in DSpace on 2017-10-06T23:52:19Z (GMT). No. of bitstreams: 1 GleilsonDeFrancaVieira_DISSERT.pdf: 2881693 bytes, checksum: de019e4ae58bc0869e88a50dad98acb6 (MD5) Previous issue date: 2017-03-28 / A Moringa ole?fera Lam ? uma ?rvore de origem indiana com v?rias utilidades nas ?reas farmac?utica, de combust?veis, purifica??o de ?gua e principalmente aliment?cia. A planta tem um melhor desenvolvimento em locais de clima seco. A cultura do uso como alimento ? muito ampla em alguns pa?ses africanos e, com efetiva expans?o nos pa?ses latinos e asi?ticos, devido ao seu rico valor nutricional. Neste trabalho foram realizadas a determina??o de macro e micro nutrientes da parede interna e externa da casca, e sementes de duas ?rvores de moringa de mesma esp?cie, mas de localidades diferentes, existentes na UFRN e EAJ para se determinar os teores de umidade, cinzas, prote?nas, gorduras, carboidratos, fibras e metais. Fazer uma compara??o entre estas e tamb?m com outras an?lises feitas com a mesma planta de outras localidades. As duas amostras foram divididas em tr?s partes cada: parede interna e a externa da casca, e sementes, onde foram pulverizadas e mantidas em recipientes de polietileno. Depois do preparo das amostras, foram realizadas as determina??es de umidade e cinzas, lip?deos por extra??o com Soxhlet, prote?nas, pelo m?todo Kjeldahl. Fibras, com o equipamento para determinar fibras. Alguns metais (Ca, Co, Cu, Cr, Fe, Mg, Mn, Mo, Ni, K, Se, Si, Na e Zn) por ICP-OES, al?m de fazer FTIR-ATR e TG/DSC. Os resultados obtidos mostraram um ?timo teor de lip?deos nas sementes (29,26 ? 35,83%), enquanto que na parede interna e externa das cascas, os teores foram baixos em compara??o com as sementes (0,4 ? 1,2 %). Os teores de prote?nas tiveram um alto valor nas sementes (30,46 - 34,57%), enquanto que as paredes internas e externas das cascas tiveram um teor bem mais baixo (3,54 ? 6,53%). Os teores de fibras das sementes (64,19 ? 70,76%), da parte interna e externa (72,18 ? 85,59%). Os teores de carboidratos tiveram um alto valor na parede interna e externa da casca (70,89 ? 82,72%), enquanto que nas sementes os teores foram baixos (19,41 ? 29,09%). Os metais encontrados nas sementes das duas amostras foram Ca, Cu, Fe, Mg, Mn, K, Na e Zn e os metais encontrados na parede interna e externa da casca foram Ca, Cu, Fe, Mg, Mn, K, Na Si e Zn. A m?dia dos resultados das an?lises foi submetida ao teste t Student em par, com 95 % de signific?ncia para saber se h? diferen?a significativa ou n?o. Os resultados encontrados s?o importantes para compara??es com pesquisas futuras, de ?rvores de mesma esp?cie de outras localidades e ambientes diferentes e, tamb?m, para ser elaborada uma tabela nutricional da casca e sementes de moringa para usos futuros. / The Moringa oleifera Lam is a tree of Indian origin with several utilities in the areas of pharmaceutics, fuels, water purification and mainly food. The plant has a better development in dry climates. The culture of use as food is very broad in some African countries and with widespread expansion in Latin and Asian countries because of its rich nutritional value. In this work were realized the determination of macro and micronutrients of the internal and external wall of the bark, and seeds of two Moringa trees of the same species, but of different localities, existents in the UFRN and EAJ to determine the contents of moisture, ash, proteins, fats, carbohydrates, fiber and metals. Make a comparison between these and, if possible, compare with other analyzes made with the plant from other locations. The two samples were divided into three parts each: internal and external wall of the shell, and seeds, where they were sprayed and kept in polyethylene containers. After preparation of the samples, were carry out moisture and ash determinations, lipid extraction by Soxhlet, Proteins, by the Kjeldahl method. Fibers, with the equipment to determine fibers. Some metals (Ca, Co, Cu, Cr, Fe, Mg, Mn, Mo, Ni, K Se, Si, Na e Zn) by ICP-OES, in addition to making FTIR-ATR and TG/DSC. The results obtained showed an optimum lipid content in the seeds (29,26 - 35.83 %), while in the inner and outer wall of the shells, the contents were low compared to seeds (0,4 ? 1,2 %). Protein contents had a high value in the seeds (30,46 and 34,57%), while the internal and external walls of the peels had a much lower content (3,54 ? 6,53%). The fiber contents of the seeds (64,19 ? 70,76%), of the internal and external wall (72,18 ? 85,59%). Carbohidrate contents had a high value in the internal and external part of the bark (70,89 ? 82,72%), while in the seeds the contents were low (19,41 ? 29,09%). The metals found in the seeds of the two samples were Ca, Cu, Fe, Mg, Mn, K, Na and Zn and the metals found on the inside and outside of the bark were Ca, Cu, Fe, Mg, Mn, K, Na, Si and Zn. The mean of the results of the analyzes was submitted to the paired Student t test, with 95% significance to know if there was a significant difference or not. The results found are important for comparisons with future research for camparisons with future research, of trees of the same species from other localities and different environments, and also to elaborate a nutritional table of seeds and moringa shells for future use.
12

We Ga LinkL Utilizing Indigenous Methodology to Explore Mental Health with Bahamian Immigrants

Proctor, Zonovia 01 January 2024 (has links) (PDF)
As global mental health initiatives continue, the need for culturally responsive approaches to research and mental health inquiry and intervention as increasingly important. However, most counseling programs and research preparation do not include indigenous approaches to address training and clinical practice. Liming and Ole Talk has emerged as a culturally responsive methodological approach with some Caribbean populations, however, at the time of this study, it had not been used with people from the Bahamas. Therefore, the purpose of this study is to continue to explore Liming and Ole Talk as a pathway to inquiry with Caribbean people leading to the research question; how do Bahamian immigrants experience liming and ole talk as a approach to mental health inquiry? For this study, 5 Bahamians signed up to lime, 4 came on the day of and 1 limer returned to process after. Utilizing a storytelling and reflective approach to analysis 5 connection points emerged: Stigma, Immigration as enlightenment, Spirituality as cause and intervention, Helplessness, and Hopefulness. The findings of the study are relevant for counselor education programs, clinical practice, and research methodological training.
13

Meta-análise de dissertações brasileiras de 2007 a 2010: aritmética e Educação Matemática Crítica / Meta-analysis of Brazilian dissertations from 2007 to 2010: arithmetic and Critical Mathematics Education

Amaral, Nara 08 October 2012 (has links)
Made available in DSpace on 2016-04-27T16:57:23Z (GMT). No. of bitstreams: 1 Nara Amaral.pdf: 586524 bytes, checksum: c78d2e9f74ee0f02da8f58a4b7d5c47c (MD5) Previous issue date: 2012-10-08 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This study aims to investigate which aspects of Critical Mathematics Education, from Ole Skovsmose, have been privileged by the Brazilian researches of the period 2007 to 2010 that deal with arithmetic of the early years of Elementary School. Based on Fiorentini e Lorenzato (2006), the research is characterized as a qualitative metaanalysis, one of types of bibliographical research, with documental character, having been based also on a meta-analysis of Maranhão (2010), because it has the same purpose: to broaden or deepen the theoretical aspects of research selected. Assumptions of the movement of Critical Mathematics Education were used, lenses with which dissertations selected were analyzed. The procedures involved in the research were: the formation of the corpus of documents (BIOTTO, 2008; BORGES, 2009; LIPP, 2009); the organization of the material, selecting units for interpretive analyzes that could provide answers to the research questions; and the evidence of contrasts and relevant standards, between researches investigated, organized by theoretical topics of theoretical reference privileged. The results indicated concerns with the following theoretical aspects of Critical Mathematics Education that emerged from the analysis of the three studies meta-analyzed: Matemacia, Exercises, Scenarios for Investigation and Model of Cooperative Investigation. Also showed that, even being contemplated these things, they did not emphasize the development of strategies that exhibit the necessary treatment to arithmetic's affairs (and other mathematical domains) emerging in investigative scenarios proposed, of intervention in reality, and this occurred, even when the stated focus of learning arithmetic topics. The rich and rigorous treatment of Mathematics is fundamental to the exercise of citizenship and for intervention in reality, because the larger its domain, the better the planning and decision making in these projects. In summary, if the scenarios have to be rich to the exercise of citizenship, it must be borne rigor in the treatment of mathematical subjects emerging from them / Este estudo tem por objetivo investigar que aspectos da Educação Matemática Crítica de Ole Skovsmose têm sido privilegiados por pesquisas brasileiras do período de 2007 a 2010 que tratam de aritmética dos anos iniciais do Ensino Fundamental. Com base em Fiorentini e Lorenzato (2006), a presente investigação caracteriza-se como uma meta-análise, uma das modalidades da pesquisa bibliográfica, de caráter documental, tendo sido baseada, também, em um estudo meta-analítico qualitativo de Maranhão (2010), por ter a mesma finalidade deste trabalho: ampliar ou aprofundar aspectos teóricos das investigações selecionadas. Foram utilizados os pressupostos da Educação Matemática Crítica, em particular na perspectiva de Ole Skovsmose, lentes com as quais foram analisadas as dissertações selecionadas. Os procedimentos da pesquisa implicaram: a constituição do corpus documental (BIOTTO, 2008; BORGES, 2009; LIPP, 2009); a organização do material, selecionando unidades para análises interpretativas que propiciassem respostas aos questionamentos da pesquisa; e a evidência de contrastes e padrões relevantes, entre as pesquisas investigadas, organizados por tópicos teóricos da referência teórica privilegiada. Os resultados indicaram preocupações com os seguintes aspectos teóricos da Educação Matemática Crítica que emergiram da análise das três pesquisas meta-analisadas: Matemacia, Exercício, Cenários para Investigação e Modelo de Cooperação Investigativa. Mostraram, ainda, que, mesmo contemplando esses aspectos, elas não explicitaram o desenvolvimento de estratégias que exibissem o necessário tratamento dos assuntos aritméticos (e de outros domínios matemáticos) emergentes nos cenários investigativos propostos, de intervenção na realidade, e isso ocorreu, mesmo quando afirmaram focalizar a aprendizagem de tópicos aritméticos. O tratamento rico e rigoroso da Matemática é fundamental para o exercício da cidadania e para a intervenção na realidade, pois, quanto maior o seu domínio, melhores serão os planejamentos e as tomadas de decisão nesses projetos. Em síntese, se os cenários têm de ser ricos para o exercício da cidadania, há de se ter rigor no tratamento dos assuntos matemáticos que deles emergem
14

An ODE/MOL PDE Template For Soil Physics: A Numerical Study

Lee, Hock Seng, n/a January 2003 (has links)
The aim of the thesis is to find a method, in conjunction with the ordinary differential equation (ODE) based method of lines (MOL) solution of Richards’ equation, to model the steep wetting front infiltration in very dry soils, accurately and efficiently. Due to the steep pressure head or steep water volumetric content gradients, highly nonlinear soil hydraulic properties and the rapid movement of the wetting front, accurate solutions for infiltration into a dry soil are usually difficult to obtain. Additionally, such problems often require very small time steps and large computation times. As an enhancement to the used ODE/MOL approach, Higher Order Finite Differencing, Varying Order Finite Differencing, Vertical Scaling, Adaptive Schemes and Non-uniform Stretching Techniques have been implemented and tested in this thesis. Success has been found in the ability of Vertical Scaling to simulate very steep moving front solution for the Burgers’ equation. Unfortunately, the results also show that Vertical Scaling needs significant research and improvement before their full potential in routine applications for difficult nonlinear problems, such as Richard’s equation with very steep moving front solution, can be realized. However, we have also shown that the use of the composed form of RE and a 2nd order finite differencing for the first order derivative approximation is conducive for modelling steep moving front problem in a very dry soil. Additionally, with the combination of an optimal influx value at the edges of the inlet, the ODE/MOL approach is able to model a 2-D infiltration in very dry soils, effectively and accurately. Furthermore, one of the strengths of this thesis is the use of a MATLAB PDE template. Implementing the ODE/MOL approach via a MATLAB PDE template has shown to be most suitable for modelling of partial differential equations. The plug and play mode of modifying the PDE template for solving time-dependent partial differential equations is user-friendly and easy, as compared to more conventional approaches using Pascal, Fortran, C or C++. The template offers greater modularity, flexibility, versatility, and efficiency for solving PDE problems in both 1-D and 2-D spatial dimensions. Moreover, the 2-D PDE template has been extended for irregular shaped domains.
15

SYNTHESE UND UMLAGERUNG VON BICYCLOBUTYL-1-OLEN UND SPIRO[3.4]OCTAN-5-OLEN: EIN NEUER ZUGANG ZU (±)-endo-CAPNELLEN

Mandelt, Klaus 10 2000 (has links)
No description available.
16

Valor nutritivo de fenos de moringa (moringa oleifera lam) com diferentes idades de corte

Melo, Samara Su?nya Nogueira Serafim de 29 March 2012 (has links)
Made available in DSpace on 2014-12-17T15:34:48Z (GMT). No. of bitstreams: 1 Samara_SNSM_DISSERT.pdf: 750288 bytes, checksum: 3776d7527173562e3fefa84752e21cb3 (MD5) Previous issue date: 2012-03-29 / This study was conducted to evaluate the consumption and digestibility of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), total carbohydrates (TC), non-fiber carbohydrates (NFC) and neutral detergent fiber (NDF) in sheep fed hay moringa (Moringa oleifera Lam) obtained with four cutting ages (28, 35, 42 and 49 days). We used 20 females Morada Nova breed, with 20kg of live weight, distributed in a completely randomized design and maintained in metabolism cages. There was a negative linear effect of age of cutting on DM intake, with an estimated maximum consumption of 0.67 kg / day for the hay produced at 28 days of cutting. It was also observed linear behavior, with an estimated maximum consumption 172g/dia, 0.36 kg / day; 18g/dia, at 35, 42 and 49 days old, for CP, OM and EE, respectively. For NDF, quadratic effect was found with advancing maturity of the plant. The apparent digestibility of DM, CP, OM and TC linearly decreased with advancing age of cutting hay Moringa oleifera. It was concluded that the hay Moringa oleifera showed better nutritional value after 28 days of cutting / O presente trabalho foi conduzido com o objetivo de avaliar o consumo e as digestibilidades aparentes de mat?ria seca (MS), mat?ria org?nica (MO), prote?na bruta (PB), extrato et?reo (EE), carboidratos totais (CHOT), carboidratos n?o fibrosos (CNF) e fibra em detergente neutro (FDN) em ovinos alimentados com feno de moringa (Moringa oleifera Lam) obtido com quatro idades de corte (28, 35, 42 e 49 dias). Foram utilizadas 20 f?meas da ra?a Morada Nova, com 20 kg de peso vivo m?dio, distribu?das em um delineamento inteiramente casualizado e mantidas em gaiolas de metabolismo. Observouse efeito linear decrescente da idade de rebrota sobre o consumo de MS, estimando-se consumo m?ximo de 0,67 kg/dia para o feno elaborado aos 28 dias de corte. Tamb?m foi observada resposta linear decrescente, estimando-se consumos m?ximos de 172 g/dia; 0,36 kg/dia; 18 g/dia, aos 35; 42 e 49 dias de idade, para PB, MO e EE, respectivamente. Para FDN, encontrou-se efeito quadr?tico com o avan?o da maturidade da planta. As digestibilidades aparentes de MS, PB, MO e CHOT diminu?ram linearmente com o avan?o da idade de corte do feno de Moringa ole?fera. Concluiu-se que o feno de Moringa ole?fera apresentou melhor valor nutritivo aos 28 dias de corte
17

Partikelbildung bei der Alkenozonolyse und ihre Kopplung an die Radikalchemie / Particle formation during the ozonolysis of alkenes and its interconnection with radical chemistry

Keunecke, Claudia 11 May 2012 (has links)
No description available.
18

Zur sequentiellen Umwandlung von Bicyclobutylidenen in Bicyclooctene: Synthese und Umlagerung funktionalisierter Spiro[3.4]octane

Meyer, Imelda 26 June 2001 (has links)
No description available.
19

Supervis?rio Inteligente de Processos na Id?stria do Petr?leo e G?s :Aplica??o em uma Coluna de Destila??o Simulada Integrada a Instrumenta??o Real

Barros, Thiago Medeiros 12 November 2012 (has links)
Made available in DSpace on 2014-12-17T14:55:08Z (GMT). No. of bitstreams: 1 ThiagoMB_DISSERT.pdf: 1745996 bytes, checksum: af67dc28800011b16eb3931959630ac2 (MD5) Previous issue date: 2012-11-12 / Funda??o Norte-Riograndense de Pesquisa e Cultura / The need to implement a software architecture that promotes the development of a SCADA supervisory system for monitoring industrial processes simulated with the flexibility of adding intelligent modules and devices such as CLP, according to the specifications of the problem, it was the motivation for this work. In the present study, we developed an intelligent supervisory system on a simulation of a distillation column modeled with Unisim. Furthermore, OLE Automation was used as communication between the supervisory and simulation software, which, with the use of the database, promoted an architecture both scalable and easy to maintain. Moreover, intelligent modules have been developed for preprocessing, data characteristics extraction, and variables inference. These modules were fundamentally based on the Encog software / A necessidade de desenvolver uma arquitetura de software que promovesse o desenvolvimento de supervis?rio SCADA para monitora??o de processos industriais simulados, com flexibilidade de agregar m?dulos inteligentes e equipamentos como CLP, de acordo com as especifica??es do problema, foi a for?a motriz desse trabalho. No presente estudo foi desenvolvido um supervis?rio inteligente sobre uma simula??o de uma coluna de destila??o modelada no Unisim. Foi utilizado como comunica??o entre o supervis?rio e o software de simula??o o OLE Automation, o qual, junto ao uso de banco de dados, promoveu uma arquitetura de f?cil manuten??o e escal?vel. Foram desenvolvidos ainda m?dulos inteligentes para pr?processamento, extra??o de caracter?sticas dos dados e infer?ncia de vari?veis. Estes m?dulos tiveram como base principal o software Encog.
20

Controle Robusto Aplicado a Conversor Buck-Boost em Sistemas Fotovoltaicos

Carvalho Neto, Jo?o Teixeira de 30 July 2012 (has links)
Made available in DSpace on 2014-12-17T14:56:09Z (GMT). No. of bitstreams: 1 JoaoTCN_DISSERT.pdf: 3199747 bytes, checksum: e80bdfe5ca1e9afb305fbbd4d3a99259 (MD5) Previous issue date: 2012-07-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The need to implement a software architecture that promotes the development of a SCADA supervisory system for monitoring industrial processes simulated with the flexibility of adding intelligent modules and devices such as CLP, according to the specifications of the problem, it was the motivation for this work. In the present study, we developed an intelligent supervisory system on a simulation of a distillation column modeled with Unisim. Furthermore, OLE Automation was used as communication between the supervisory and simulation software, which, with the use of the database, promoted an architecture both scalable and easy to maintain. Moreover, intelligent modules have been developed for preprocessing, data characteristics extraction, and variables inference. These modules were fundamentally based on the Encog software / A necessidade de desenvolver uma arquitetura de software que promovesse o desenvolvimento de supervis?rio SCADA para monitora??o de processos industriais simulados, com flexibilidade de agregar m?dulos inteligentes e equipamentos como CLP, de acordo com as especifica??es do problema, foi a for?a motriz desse trabalho. No presente estudo foi desenvolvido um supervis?rio inteligente sobre uma simula??o de uma coluna de destila??o modelada no Unisim. Foi utilizado como comunica??o entre o supervis?rio e o software de simula??o o OLE Automation, o qual, junto ao uso de banco de dados, promoveu uma arquitetura de f?cil manuten??o e escal?vel. Foram desenvolvidos ainda m?dulos inteligentes para pr?processamento, extra??o de caracter?sticas dos dados e infer?ncia de vari?veis. Estes m?dulos tiveram como base principal o software Encog

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