Submitted by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2017-01-30T15:35:18Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação_ Marcello Pires Fonseca.pdf: 3007541 bytes, checksum: 93af1812257dbe5f990b3571f36b3163 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2017-01-30T15:38:43Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação_ Marcello Pires Fonseca.pdf: 3007541 bytes, checksum: 93af1812257dbe5f990b3571f36b3163 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2017-01-30T15:39:03Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação_ Marcello Pires Fonseca.pdf: 3007541 bytes, checksum: 93af1812257dbe5f990b3571f36b3163 (MD5) / Made available in DSpace on 2017-01-30T15:39:04Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação_ Marcello Pires Fonseca.pdf: 3007541 bytes, checksum: 93af1812257dbe5f990b3571f36b3163 (MD5) Previous issue date: 2016-09-22 / Agência de Fomento não informada / The focus of this research is to propose an alternative service to the population through the optimization of public social services currently provided by a project called Emergency Room Citizen. The PAC is responsible for conducting most social services to the population of the state, such as civil identification, maintenance of electricity bills, water, issuance of various documents. The city of Manaus has an area of territorial unit of approximately 11,401,092 m2, which makes the displacement of the population to one of the active fixed units. This work aims to provide an alternative that can help public administration in overcoming this challenge, that is, analyze the feasibility of simultaneous compliance with the extension of Manaus City through a mobile unit (itinerant) PAC. Thus it was established the general goal is to analyze the economic feasibility of implementing an Emergency Care Mobile Citizen (PACM) aiming optimized service to some more distant neighborhoods, therefore, set up the specific objectives of selecting the services to be provided by the Mobile Unit; Describe the structure required to provide selected services and determine the administrative and economic viability of deploying a Mobile PAC services as needed in the city of Manaus. The methodology for conducting the case study consisted of field research it was made the application of semi-structured questionnaire composed of 23 questions to the user population of 06 existing units in the city, these questionnaires were applied throughout the month of April and May 2016 documentary analyzes were also made on controls provided by the project, it is possible to estimate the current cost of maintenance of fixed calls stations, enabling the projection of a mobile unit for specific care services. The results of this field study allowed an analysis of the demand for services offered in Ready Stations Service (PAC's) who participated in the scope of this research, therefore, it was possible to demonstrate that the portfolio of services in one unit can be offered in one unit mobile efficiently and quickly to society, there is therefore significant benefits to the population. / O foco desta pesquisa é propor uma alternativa de atendimento à população através da otimização dos serviços sociais públicos prestados atualmente por um projeto denominado Pronto Atendimento ao Cidadão. O PAC é responsável por realizar a maioria dos serviços sociais à população do Estado, tais como a Identificação Civil, Manutenção de contas de energia elétrica, água, emissão de documentos diversos. A cidade de Manaus possui uma área da unidade territorial de aproximadamente 11.401.092 m2, o que dificulta o deslocamento da população a uma das Unidades fixas atuantes. Este trabalho visa proporcionar uma alternativa que possa auxiliar a gestão pública na superação deste desafio, ou seja, analisar a viabilidade de atendimento simultâneo à extensão da Cidade Manaus através de uma unidade Móvel (itinerante) do PAC. Sendo assim, foi estabelecido o objetivo geral que é analisar a viabilidade econômica da implantação de um Pronto Atendimento Móvel ao Cidadão (PACM) visando atendimento otimizado a alguns bairros mais distantes, para tanto, estabeleceu-se os objetivos específicos de selecionar os serviços que serão disponibilizados pela Unidade Móvel; Descrever a estrutura necessária para oferecer os serviços selecionados e averiguar a viabilidade econômico administrativo de implantação dos serviços de um PAC Móvel conforme necessidade na cidade de Manaus. A metodologia para realização do estudo de caso consistiu em pesquisa de campo em que foi feita a aplicação de questionários semiestruturados compostos de 23 perguntas dirigidas à população usuária das 06 unidades existentes na cidade, estes questionários foram aplicados ao longo do mês de abril e maio de 2016, também foram feitas análises documentais em controles fornecidos pelo projeto, sendo possível estimar o custo atual de manutenção dos postos de atendimentos fixos, possibilitando a projeção de uma unidade móvel para atendimento de serviços específicos. Os resultados desta pesquisa de campo possibilitaram uma análise da demanda de serviços oferecidos nos Postos de Pronto Atendimento (PAC’s) que participaram do escopo desta pesquisa, desta forma, foi possível demonstrar que o portfólio de serviços prestados em uma unidade pode ser oferecido em uma unidade móvel com eficiência e rapidez à sociedade, havendo, portanto, benefícios significativos para população.

La paroi primaire végétale est une enveloppe dynamique impliquée dans le développement ainsi que la réponse aux contraintes environnementales. Elle est composée de réseaux de polysaccharides et de protéines dans lesquels interviennent des protéines multi-domaines de type LRX et des protéines à domaine PAC. Ce travail de thèse a consisté à rechercher la fonction de ces protéines dans les parois. Des analyses protéomiques réalisées sur des extraits de protéines pariétales de racines de plantes sauvages ou mutantes lrx1 d'A. thaliana ont permis d'identifier 424/434 protéines pariétales de plantes sauvages/lrx1 respectivement et 25 protéines candidates pouvant jouer un rôle dans la morphogenèse des poils absorbants. Par ailleurs, des protéines à domaine PAC ont été identifiées dans toutes les plantes terrestres étudiées. L'apparition des protéines à domaine PAC a pu être associée à la terrestrialisation. Une analyse phylogénique a permis de grouper les domaines PAC en 10 clades, chacun comportant un domaine PAC d'Amborella trichopoda. Outre les 6 résidus Cys caractérisant le domaine PAC, des motifs conservés ont été repérés dans les clades, ouvrant la voie pour des études fonctionnelles. Des tests in vitro ont montré que les domaines PAC interagissent avec différents types de polysaccharides pariétaux et permis de définir trois types de spécificité vis-à-vis de polysaccharides tels que les ß(1,4) galactanes/RGI, les mannanes, les xyloglucanes et/ou la cellulose. Un nouveau modèle d'interactions supramoléculaires dans les parois végétales faisant intervenir des protéines à domaine PAC et des polysaccharides pariétaux a été proposé / The plant primary cell wall is a dynamic envelope involved in development and in response to environmental constraints. It is composed of networks of polysaccharides and proteins to which multi-domain proteins like LRX (Leucine-Rich repeat Extensin) and PAC (Proline-rich Arabinogalactan Protein Cys-containing) domain proteins contribute. This work aimed at finding partners of such proteins in cell walls using different experimental approaches. Proteomics analyses have been performed on proteins extracted from cell walls of roots of wild type or lrx1 plants. They have allowed the identification of 424/434 cell wall proteins of wild type/lrx1 roots respectively as well as of 25 candidate proteins which could play a role in root hair morphogenesis. Besides, PAC domain proteins have been identified in all the studied terrestrial plants using a bioinformatic approach. The appearance of PAC domain proteins could be associated to terrestrialisation. A phylogenic analysis has allowed to group PAC domains in 10 clades, each of them containing a PAC domain of Amborella trichopoda, an ancestor of angiosperms. In addition to the 6 Cys residues which define the PAC domain, conserved motifs have been identified in each clade. This finding opens the way to functional studies. In vitro tests have shown that the PAC domains could interact with different kinds of cell wall polysaccharides. Three types of specificity could be defined towards ß(1,4) galactans/RGI, mannans, xyloglucans and/or cellulose. A new model of molecular interactions in plant cell walls including PAC domain proteins and polysaccharides has been proposed

In 1998, it was proved by Ben-David and Litman that a concept space has a sample compression scheme of size $d$ if and only if every finite subspace has a sample compression scheme of size $d$. In the compactness theorem, measurability of the hypotheses of the created sample compression scheme is not guaranteed; at the same time measurability of the hypotheses is a necessary condition for learnability. In this thesis we discuss when a sample compression scheme, created from compression schemes on finite subspaces via the compactness theorem, have measurable hypotheses. We show that if $X$ is a standard Borel space with a $d$-maximum and universally separable concept class $\m{C}$, then $(X,\CC)$ has a sample compression scheme of size $d$ with universally Borel measurable hypotheses. Additionally we introduce a new variant of compression scheme called a copy sample compression scheme.

The ternary spinel-type compounds CdCr2Se4, CdCr2S4, HgCr2Se4, and CuCr2Se4 with Cr as transition metal form a special group of ferromagnetic semiconductors with Curie temperatures up to 430 K. They have particular perspectives in spintronics due to the coexistence of semiconducting and ferromagnetic properties. In this work the ferromagnetic semiconductors were investigated by the hyperfine interactions of implanted nuclear probes using the PAC (perturbed angular correlations) spectroscopy. In such compounds both magnetic hyperfine fields (Bhf) and electric field gradients (efg) allow a detailed study of the behavior of probes, which can additionally represent essential doping atoms in these substances. Besides the popular 111In(111Cd), also 111mCd, 111Ag(111Cd), 77Br(77Se), 117Cd(117In), 199mHg, and 100Pd(100Rh) probes were used exploiting the unique possibilities at the ISOLDE on-line separator and implanter (CERN, Geneva, Switzerland). The main objective of these investigations was to examine the lattice site occupation and the behavior of the implanted probes. In addition, the experimental hyperfine fields were used as test quantities for modern ab initio calculations of the electronic and spin structure (WIEN97).

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For efficient understanding and prediction in natural systems, even in artificially closed ones, we usually need to consider a number of factors that may combine in simple or complex ways. Additionally, many modern scientific disciplines face increasingly large datasets from which to extract knowledge (for example, genomics). Thus to learn all but the most trivial regularities in the natural world, we rely on different ways of simplifying the learning problem. One simplifying technique that is highly pervasive in nature is to break down a large learning problem into smaller ones; to learn the smaller, more manageable problems; and then to recombine them to obtain the larger picture. It is widely accepted in machine learning that it is easier to learn several smaller decomposed concepts than a single large one. Though many machine learning methods exploit it, the process of decomposition of a learning problem has not been studied adequately from a theoretical perspective. Typically such decomposition of concepts is achieved in highly constrained environments, or aided by human experts. In this work, we investigate concept learning by example decomposition in a general probably approximately correct (PAC) setting for Boolean learning. We develop sample complexity bounds for the different steps involved in the process. We formally show that if the cost of example partitioning is kept low then it is highly advantageous to learn by example decomposition. To demonstrate the efficacy of this framework, we interpret the theory in the context of feature extraction. We discover that many vague concepts in feature extraction, starting with what exactly a feature is, can be formalized unambiguously by this new theory of feature extraction. We analyze some existing feature learning algorithms in light of this theory, and finally demonstrate its constructive nature by generating a new learning algorithm from theoretical results.

The landfill leachate is commonly treated for non-biodegradable organic matters, ammonia and colour. Experimental investigations using polyaluminium chlorite (PAC) and UV/O3 have been conducted for the determination of optimal pH value, reaction time and PAC concentration for the removal of chemical oxygen demand (COD) and colour. In pre-treatment coagulation stages, the highest COD and colour removal efficiencies were observed at the concentration of PAC ≥ 3,000 mglG1 and pH values between 7 and 8. However, these experiments also indicated significant removal efficiency for PAC starting with concentrations of 1,500 mglG1. The efficiency of COD and colour removal were approximately 30% and 70%, respectively. Similar efficiencies have been observed also during the second treatment stage where UV/O3 processes were used to treat coagulated leachate. After UV/O3 application, the pH of leachate reached the optimum value of 7.5 whereas the highest COD and colour removal efficiency was 55% and 72%, respectively, and the optimal reaction time was achieved after 80 min. / Nước rỉ rác sinh ra từ bãi chôn lấp chất thải rắn cần được xử lý các thành phần chất hữu cơ khó phân hủy sinh học, xử lí amoni và độ màu. Một số kết quả thử nghiệm về xử lý COD và màu của nước rỉ rác bằng việc sử dụng phương pháp keo tụ với PAC và quá trình UV/O3 đã được thực hiện cùng với việc xác định các giá trị pH tối ưu, thời gian phản ứng và nồng độ PAC tối ưu. Hiệu suất xử lý cao nhất đạt được khi nồng độ của PAC ≥ 3.000 mg/l, pH trong khoảng từ 7 đển 8 trong giai đoạn tiền xử lý. Tuy nhiên, hiệu quả loại bỏ COD và màu bắt đầu tăng rõ khi nồng độ PAC từ 1.500 mg/l trở lên. Hiệu quả loại bỏ COD và màu tương ứng là khoảng 30% và 70%. Các giá trị pH này phù hợp cho quá trình phản ứng UV/O3 được sử dụng sau giai đoạn keo tụ. Sau quá trình xử lý bằng hệ UV/O3, pH của nước rỉ rác tối ưu được xác định là 7,5 (hiệu suất xử lý COD và màu cao nhất tương ứng là 55% và 72%), thời gian phản ứng tối ưu là 80 phút.

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