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Síntese de derivados ftalocianínicos de alta conjugação : estratégias envolvendo acoplamentos organometálicos e metano[10]anulenos
(Universidade Federal de São Carlos, 2017-04-28)
Gobo, Nicholas Roberto da Silva
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Oliveira, Kleber Thiago de
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https://lattes.cnpq.br/3759761373942891
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https://lattes.cnpq.br/2271376257437396
In this study, the synthesis of phthalocyanine derivatives with extended conjugation were proposed. In order to obtain these compounds, two main strategies were applied. One of them, was the Heck-Mizoroki cross-coupling methodology for the synthesis of substituted naphthalocyanines starting from an octahalogenated phthalocyanine. The other one, was to synthesize a novel phthalocyanine derivative starting from 3,4-dicyano-1,6-methano[10]annulene, which under cyclotetramerization conditions furnished a compound with absorptions at 720 and 800 nm.
Sociedade Civil no Supremo: avanço de uma agenda de direitos?
(Universidade Federal de São Carlos, 2017-04-28)
Braghin, Simone
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Oliveira, Fabiana Luci de
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https://lattes.cnpq.br/9487149052862292
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https://lattes.cnpq.br/6021076901392006
Sem abstract
Avaliação pedagógica e deficiência intelectual : formação de profissionais da rede pública
(Universidade Federal de São Carlos, 2017-04-28)
Stelmachuk, Anaí Cristina da Luz
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Caiado, Kátia Regina Moreno
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https://lattes.cnpq.br/0803778280883949
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https://lattes.cnpq.br/3536319187740311
The present research had as an objective to identify the concepts multifunctional-resource-class teachers and school supervisors have of intellectual disability and evaluation, after being submitted to an education course. It also aimed at analyzing how the assessment processes of students showing possible intellectual disability for enrollment in special education programs have been occurring, and subsidize work in a pedagogical evaluation which guarantees each and every student the right to learn in school. Developed in a town in Parana State which adopts the psycho-educational evaluation in the school context, a model constituted of pedagogical assessment aided by psychological opinion with the diagnoses of the disability, its subjects were the multifunctional-resource-class teachers and school supervisors of the public municipal education network, the ones in charge of the pedagogical assessment and the Coordinator of Basic Education of Secretaria da Educação Municipal ( Municipal Board of Education). Supported by critical educational theories and their bases, the methodological forwarding happened under a historic and dialectic perspective, whose approach makes possible the proximity and understanding of social practices which involve the processes studied, in order to more than understand them, to try to transform them. The course offered to the participants in the research was based in the historic-critic pedagogy and the educational meetings were videotaped for data collection. The talks were transcribed and organized in theme axes about: the education course, concepts of evaluation, concepts of intellectual disability and evaluation practices. As a result, it was verified that the participants’ concepts of evaluation validate this tool as a means to indicate ways towards the student’s learning. Nevertheless, the course takers focus more on the skills that must be developed by the students than on the factors external to them, which make this development possible, such as the very pedagogical practice itself. Concerning the concept of intellectual disability, it was noticed a mixture of concepts: some course takers present a speech primarily focused on an organicist view, and others, more focused on the interaction perspective. About the evaluation practice, it was verified that the course takers have knowledge about the necessary proceedings to refer the students to assessment and the norms adopted by the city; some course takers showed resistance to the participation of school professionals in the evaluation process, indicate the segmentation among the teams who act within and outside the school, besides the predominance of the opinions of such teams over the ones of the school pedagogical team. The clinical area professionals’ diagnoses are considered important, however criticism to them can be noticed, especially when their results do not correspond to the expectancy of the school. Based on the pedagogical evaluation performed in the school context, reports on students who had their learning process redefined and stopped being sent for psychological assessment in order to identify a possible disability outstands. It is concluded that the education course offered constituted a space for reflection, which made possible, changes in concepts of intellectual disability and its evaluation processes.
Comportamento de viagem de ciclistas em uma cidade de porte médio : implicações para definição de redes cicloviárias
(Universidade Federal de São Carlos, 2017-04-28)
Sousa, Isabel Cristina Nunes de
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Sanches, Suely da Penha
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https://lattes.cnpq.br/3857424839674606
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https://lattes.cnpq.br/8572329722251988
This research is based on the premise that the improvement of bicycle transport conditions could help improve the quality of life in cities, due to the wide range of social, environmental, economic and health benefits associated with this mode. The purpose of the cycling networks addressed in this study is to establish connections between potential points of origin and destination of cyclists, in order to offer the most appropriate routes between the points of interest. For this, the identification and study in the Travel Generating Poles (PGVs) are convenient, since Origin-Destination (O / D) surveys, capable of providing information about travel demands, are rare in the context of Brazilian cities. The prerogative of this study is to identify the implications of opinions and travel behavior of cyclists in the planning of cycling networks in medium-sized cities. Based on the bibliographic review, the main factors that influence the choice of routes by cyclists were identified, as well as some models of bicycle service level evaluation (NSB), in order to provide a solid theoretical discussion, allowing a better understanding of the studied reality. Subsequently, surveys have been carried out with cyclists at Bicycle Travel Generating Poles (application of a questionnaire and registration of routes traveled by cyclists using GPS devices), followed by the diagnosis of the Level of Service for Bicycle of the routes traveled by cyclists and the shortest ways between origins and destinations of cyclists. The implications of cyclists' opinions and travel behavior for cycling planning lie in directing the proposition to direct cycling networks, that minimize the deviation of connections between origins and destinations (PGVs), as well as provide basic infrastructures such as adequate lighting and well-maintained pavement.
Complexos monometálicos de zircônio(IV) e zinco(II) com bases de Schiff tridentadas tipo ONN derivadas da diaminomaleonitril: síntese, caracterização e estudos como catalisadores em reações de oxidação
(Universidade Federal de São Carlos, 2017-04-28)
Mello, Lucas dos Santos
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Dockal, Edward Ralph
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https://lattes.cnpq.br/6461328124491559
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https://lattes.cnpq.br/2729829694201584
It is known that transition metal complexes are compounds with a wide range of applications, due to, for example, its structural versatility and variability of electronic properties. A wide range of these compounds have vital functions in living organisms, being found in enzymes, proteins and cofactors. So, the potentiality of such complexes for the catalytic activity is related to the presence of possible active sites for substrate coordination and the occurrence of the catalyzed reaction. In search for inorganic compounds that act as mimetic models for the enzyme Catechol Oxidase, there were synthesized monometallic zirconium (IV) and zinc (II) complexes. The ligands used were tridentate Schiff base originated by the reaction between diaminomaleonitrile and salicylaldehyde, or 4-substituted salicylaldehyde. Those compounds were characterized through techniques such as solubility tests, melting point tests, molar conductivity measures, vibrational and electronic spectroscopies and 1H nuclear magnetic resonance. The complexes were tested for its functional mimetic activity for the enzyme Catechol Oxidase by conducting the reaction between 3,5-di-tert-butylcatechol and O2, to form 3,5-di-tert-butyl-ortho-quinone. It was found that in 24 h the zinc complex without substituent on the aromatic ring of the ligand has a catalytic behavior, resulting in a conversion 17 % higher than that observed in the test without catalyst. The results for all other complexes suggested inhibitory activity and the tested zirconium complex was the one which the inhibition effect was more pronounced. In the first four hours of reaction it presented conversions of 5 % of the converted in the test without catalyst.
Application of design of experiments (DoE) to dissolution method development in pharmaceutical industry
(Universidade Federal de São Carlos, 2017-04-28)
Souza, Renato Cesar de
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Pereira Filho, Edenir Rodrigues
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https://lattes.cnpq.br/3394181280355442
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https://lattes.cnpq.br/2338450023083353
The aim of this work is to apply design of experiment methodologyin the development of a dissolution method during the early phase ofdevelopment of a generic product in pharmaceutical industry. The model drug used during the development was the biphasic release product Zolpidem CR, which contains 12.5 mg of Zolpidem Hemitartrate per tablet. Previous to experimental design, a Failure Mode and Effect Analysis (FMEA)was performed to choose the most important variables.Four variables were considered the most importants to affect product release rate, which wereapparatus, rotation speed, volume and pH of the dissolution media. The variables selected were analysed by the full factorial design with the objective to identify the principal factors. The most critical factors were then used to construct the response surface model in order to model all variables and understand its interaction. The objective at this phase of product development was to reach anin vitro dissolution similar to the one in vivo, therefore all the responses were based on the in vivo absorption rate of the reference product obtained from literature. The mean Zolpidem plasma concentration-time profiles was deconvoluted by Wagner Nelson method and the deconvoluted curve was modeled to Logistic model. The parameters of the equation wereused as reference response. The responses monitored were the percentage dissolved in 0.25, 4.0 h, and the α ,β and R2 parameters of logistic equation. The model reliability and significance of the factors studied was evaluated by the analysis of variance (ANOVA). Two methods were used to determine the best dissolution condition, the first one was the Desirability Function and the second was the response surface sobreposition. The dissolution condition of basket with a rotation speed of 50 rpm and dissolution media of HCl 0,01 M (pH 2,0) with a volume of 500 ml was choosen as the condition that satisfied the desirability criterias stablished at the beginning of the experiment. The design of experiment methodology proved to be a more efficient methodology comparade to the traditional one factor at time (OFAT) method, reducing the number of experiments, number of samples and time to method development. The comprehension of the factors that affect release rate of the product and conclusion showed to be significantly superior to the traditional method.
Gestão de águas pluviais urbanas através da abordagem Water Sensitive Urban Design : desafios e potencialidades para o município de São Carlos - SP
(Universidade Federal de São Carlos, 2017-04-28)
Faustino, Alexandre da Silva
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Silva, Ricardo Siloto da
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https://lattes.cnpq.br/5346985934880710
;
https://lattes.cnpq.br/4355937299209331
Conflicts over water are inherent in the development of cities and stand out in the setting of environmental and urban crisis scenarios. New models of urban management and planning congruent to the hydrological cycle suggest more harmonious relations between the urbanization process and ecosystem interventions, to efficiently take advantage of the natural characteristics of the environment. Water Sensitive Urban Design (WSUD) has emerged from this premise to meet the demands of the Australian context. Currently the practices that follow this approach have multiplied, forming a set of experiences that can guide the dissemination of WSUD to other realities, such as the Brazilian cities scenario. This research proposed the study of this approach in its origins, as well as the understanding of the water cycle vision adopted in urban planning of the São Carlos city, aiming to demonstrate the potentialities and limitations of WSUD application in the urban stormwater management and planning of this municipality. The research was structured in four phases: exploratory, descriptive, analytical and conclusive. Each of these phases allowed to carry out a theoretical background that bases the discussions of the dissertation, to obtain an approximation of the characteristics of the objects studied and to develop analyses about the used procedures and founded results. It was possible to systematize a framework of the approach from technical manuals, to compile historical and contemporary processes that condition the conflicts between urbanization and the conservation of water ecosystems in the city of São Carlos, and to build a matrix of potentialities and weaknesses about the development of WSUD in this context, intending for the advancement of the issue in prospects of reduced impact and greater environmental and urban health for the municipality. It was verified that the urbanization process of São Carlos had been oriented by the conventional paradigm of stormwater management setting up a scenario of Drained City, but since 2001 institutional and legal transitions allowed the emergence of alternative practices, which established potentialities to foster the Water Sensitive City. Based on the presented results, possible strategies were adopted for the management of rainwater management that allow the implementation of alternative practices.
Percepções de pesquisadores brasileiros sobre o acesso aberto à literatura científica
(Universidade Federal de São Carlos, 2017-05)
Furnival, Ariadne Chloe Mary
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Silva-Jerez, Nelson Sebastian
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https://lattes.cnpq.br/1291482506649810
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https://lattes.cnpq.br/7157978490951972
A pesquisa se propôs explorar como várias dimensões do acesso aberto à literatura científica são percebidas por pesquisadores brasileiros, identificando também seus hábitos de publicação, uso e citação de fontes em acesso aberto. A abordagem metodológica foi quantitativa, com aplicação de um questionário a 643 doutores permanentes distribuídos nas universidades brasileiras, oriundos de todos as áreas disciplinares. O questionário foi elaborado com auxílio da plataforma livre LimeSurvey, sendo composto por 29 questões fechadas. Foram recebidos questionários respondidos por pesquisadores oriundos de 31 Institutos de Ensino Superior e Institutos de Pesquisa no Brasil. A estratificação por área mostrou uma distribuição relativamente equilibrada entre os campos de conhecimento, com a maior porcentagem sendo das Ciências da Saúde (21%), seguido pelas Ciências Exatas e da Terra (20,1%), e a menor porcentagem, de 1,1%, de Linguística, Letras e Artes. Os resultados apontaram que a grande maioria dos pesquisadores respondentes detém conhecimento sobre, e apoiam os princípios e algumas ações de acesso aberto, principalmente em relação à publicação de revistas acesso aberto, o que reflete também nos seus hábitos de uso e citação dessas fontes. Comparativamente, o conhecimento e uso de repositórios é menor, e parece haver uma certa confusão em relação ao status de copyright dos artigos arquivados em repositórios. Ficou evidente que os pesquisadores acreditam que somente os postprints deveriam ser disponibilizados em repositórios. O desconhecimento identificado acerca da compatibilidade entre a publicação em revistas “convencionais”, de assinatura e o arquivamento do mesmo artigo em repositórios em acesso aberto aponta a necessidade de maiores iniciativas informativas para esclarecer esses aspectos.
Coloração de Arestas em Grafos Split-Comparabilidade
(Universidade Federal de São Carlos, 2017-05-02)
Cruz, Jadder Bismarck de Sousa
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Almeida, Sheila Morais de
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https://lattes.cnpq.br/9151881548763857
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Silva, Cândida Nunes da
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https://lattes.cnpq.br/6019111128413167
Let G = (V, E) be a simple and undirected graph. An edge-coloring is an assignment of colors to the edges of the graph such that any two adjacent edges receive different colors. The chromatic index of a graph G is the smallest number of colors such that G has an edge-coloring. Clearly, a lower bound for the chromatic index is the degree of the vertex of higher degree, denoted by ?(G). In 1964, Vizing proved that chromatic index is ?(G) or ?(G) + 1. The Classification Problem is to determine if the chromatic index is ?(G) (Class 1 ) or if it is ?(G) + 1 (Class 2 ). Let n be number of vertices of a graph G and let m be its number of edges. We say G is overfull if m > (n-1) 2 ?(G). Every overfull graph is Class 2. A graph is subgraph-overfull if it has a subgraph with same maximum degree and it is overfull. It is well-known that every overfull and subgraph-overfull graph is Class 2. The Overfull Conjecture asserts that every graph with ?(G) > n 3 is Class 2 if and only if it is subgraph-overfull. In this work we prove the Overfull Conjecture to a particular class of graphs, known as split-comparability graphs. The Overfull Conjecture was open to this class.
Produção de ácido indol acético in vitro por Torulaspora globosa
(Universidade Federal de São Carlos, 2017-05-02)
Albertini, Jéssica
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Rosa-Magri, Márcia Maria
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https://lattes.cnpq.br/4166319985147604
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https://lattes.cnpq.br/7803960030368793
The indole acetic acid (IAA) is a phytohormone capable of providing fast responses to plant development such as cell elongation and differentiation and division of cells. It is known that exist in the rhizosphere there are yeasts capable of assisting the plant development by the IAA production. In this study, the objective was isolate yeasts of the rhizosphere and select lineages capable of producing IAA; the selected lineage was evaluated for the influence of temperature, pH, agitation, carbon and nitrogen on the production of IAA. For isolation, corn rhizosphere and sugarcane were sampled from the campus area of UFSCar, Araras/SP. The samples were plated on YEPD medium, Sabouraud and BDA. The lineages were selected using colorimetric methodology, with Salkowsky reagent. The best results were evaluated for the influence of factors in the production of AIA, through experimental planning with multivariate analysis. Six yeast strains were isolated; the strain 6S01, identified as Torulaspora globosa, was selected. The results of the multivariate analysis show that among the studied factors, which significantly affected the production of IAA were pH, agitation and nitrogen. The pH showed the greatest influence on production, because it affected significantly at all times evaluated; the highest recorded production values were obtained in the treatment in which the initial pH of the medium was adjusted to 9,0. The highest yields occurred between 24 and 48 hours of incubation, and the maximum production was 217,73 μg/mL. It was observed that, in the tests in which there was no addition of nitrogen source in the culture medium, the production was higher; probably tryptophan provided as a precursor molecule of AIA synthesis was used by tthe yeast as a nitrogen source and was better absorbed in the absence of other sources of the nutrient. It is concluded that the yeast T. globosa (6S01), isolated from maize rhizosphere presents capacity of high production of IAA, with potential for large scale production; the best conditions for the production are in the absence of nitrogen source and in alkaline medium.
Solubilização in vitro de fosfato por Torulaspora globosa
(Universidade Federal de São Carlos, 2017-05-02)
Rocha, Renata Kühl
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Rosa-Magri, Márcia Maria
;
;
https://lattes.cnpq.br/3962441453324220
Soil is an environment with great microbial diversity. Filamentous fungi and bacteria have been known for decades for the ability to stimulate plant development. Recently, studies have shown that yeasts are also capable of benefiting plants, for example, through the solubilization of inorganic phosphates. This work aims at a better understanding of the ability of rhizospheric yeasts in the solubilization of tricalcium phosphate. It also aims to study the influence of factors (pH, temperature and agitation) in the process. Initially, isolates of corn and sugarcane rhizosphere yeasts were made. The isolates were evaluated for the ability to solubilize tricalcium phosphate in solid medium BDYA. The isolate with the highest solubilization capacity was identified and evaluated for the solubilization capacity of tricalcium phosphate in NBRIP liquid medium at different temperature levels (20, 25 and 30 ° C), initial pH (3, 5 and 7) and agitation (0, 100, 150 and 200 rpm). Solubilization evaluations were also performed at 24-hour intervals, ranging from 1 to 7 days. Six isolates were obtained. All presented a positive result for solubilization. The yeast 6S01 (Torulaspora globosa) had the highest solubilization capacity. After five days, T. globosa solubilized 26 to 35% of the total phosphorus in the NBRIP culture medium. There was no significant difference for any of the environmental parameters tested. Assays performed in periods of 1 to 7 days showed that the yeast solubilized a maximum amount of phosphorus in 48 hours (42%). This makes it interesting for industrial and agricultural applications, since it has a fast solubilization process and can be used in a wide range of conditions. It was possible to understand that a higher cell growth is not related to the efficiency in the solubilization, and that acidification of the medium may be one of the main mechanisms used by yeast in the in vitro solubilization of tricalcium phosphate.
Capacidade de locomoção de Ololygon Alcatraz (Anura:Hylidae): subsídios para a conservação Ex Situ
(Universidade Federal de São Carlos, 2017-05-02)
Lisboa, Cybele Sabino
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Brasileiro, Cinthia Aguirre
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https://lattes.cnpq.br/2415614509705858
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Cruz, João Batista da
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https://lattes.cnpq.br/6711198385217623
The current global amphibian situation requires the implementation of efficient conservation measures to minimize or stabilize declines and extinctions rates. Ex situ conservation is a complementary strategy to in situ conservation and is mainly used in captive breeding and maintenance of endangered species for possible reintroductions. It is known that certain abilities can be lost after multiple generations in captivity, generating individuals more adapted to the captive environment. Locomotor function is a fundamental trait to survival, therefore, for an ex situ conservation program it is important to know whether the locomotion and metabolic capacities of captive born and wild animals are similar. Thereby, the present study evaluated the locomotor and metabolic capacities of ex situ and in situ populations of Ololygon alcatraz. This species is bromeligenous, endemic to the Ilha dos Alcatrazes (Brazil) and is threatened, categorized as Critically Endangered on the IUCN and Brazilian red lists. The locomotor performance was measured by manual stimulation of the individuals in an arena and the metabolic capacity was estimated by measuring the maximum activity of enzymes responsible for the production of energy for the locomotion activity. Captives born presented greater resistance to exercise when compared to the wild ones, traveling greater distances, jumping more times and spending more time in exercise, besides presenting higher activity of the enzyme citrate synthase. Wild animals had the potential to perform longer jumps and presented greater activity of the enzyme lactate dehydrogenase, which supports this type of exercise. These differences seems to be explained by phenotypic plasticity, arising from the environment in which individuals were created during ontogenetic development. This study evidenced the need to implement some measures to avoid that such differences are fixed in captives born Ololygon alcatraz and do not compromise their survival if they are translocated to the wild, thus subsidizing the species ex situ conservation program.
Visualização gráfica dos fundamentos da lógica matemática por meio de diagramas de conjuntos
(Universidade Federal de São Carlos, 2017-05-05)
Peach, Glen
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Moura, Renato José de
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https://lattes.cnpq.br/5227908949297904
The purpose of this work is to propose a method that allow to bring the fundamentals of mathematical logic to high school through the use of set theory, however making the whole approach of the subject through diagrams, making it possible to avoid, for the demonstrations and understanding necessary to the development of the subject, the rigors of writing used in mathematical logic, which, in a first contact, tend to discourage the interest of beginning students.
Estudo das propriedades estruturais, elétricas e ópticas de filmes finos de Niobato de Sódio e Potássio (KNN), fabricados por deposição a laser pulsado (PLD)
(Universidade Federal de São Carlos, 2017-05-05)
Burgos Gavelán, Ricky Nelson
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Zambrano, Michel Venet
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https://lattes.cnpq.br/1830376229286038
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Moreira, Fernando Manuel Araújo
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https://lattes.cnpq.br/1809254923092721
Environmental problems arising from lead toxicity in materials, such as those in lead zirconate titanate (PZT) have stimulate the search for new lead-free ferroelectrics materials with ferroelectric and piezoelectric characteristics comparable to those of PZT. Potassium sodium niobate (KNN) based materials are possible candidates to replace PZT materials in several applications because their high Curie temperature and high piezoelectric coefficients. Development of microelectronics and optoelectronics requires materials with multifunctional properties and low dimensionality, therefore studies in ferroelectric thin films with applications in ferroelectric memories, ferroelectric transistors, photovoltaic devices, electronic modulators, infrared detectors and varistors are necessary. The main object of this thesis, is the synthesis and characterization of morphological, electrical and optical properties of ferroelectric KNN and samarium doped KNN (KNN:Sm3+) thin films, deposited on three diferents substrates SrTiO3, MgO e Si/SiO2) by pulsed laser deposition method (PLD), in addition, a conductive layer of LaNiO3 was deposited on SrTiO3 substrate before deposition of the ferroelectric films for using as electrode and perform electrical characterizations including current leakage, which limits applications of ferroelectric thin films. Finally, photoluminescence measurements of samarium doped films were performed in order to investigate the interaction of this element with crystal structure of KNN, which provides information about possible multifunctional applications.
Made in China / produzido no polo industrial da zona franca de Manaus : o trabalho nas fábricas chinesas
(Universidade Federal de São Carlos, 2017-05-05)
Brito, Cleiton Ferreira Maciel
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Lima, Jacob Carlos
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https://lattes.cnpq.br/9244132532446607
;
https://lattes.cnpq.br/5852813705553258
This research analyses the Chinese production in the Industrial Cluster of Manaus Free Zone, focusing on the production pattern and work management. In recent years, significant changes have been operating within the global production chain as a result of the massive displacement of Chinese capital towards the various regions of the globe. Brazil and, more specifically, the Amazon has been one of the main destinations of these Chinese investments. An empirical proof of these metamorphoses of global capital is the arrival of a set of Chinese factories at the Industrial Cluster of Manaus (PIM) from the beginning of the year 2000. In order to understand the meaning of this on the organization of local work, especially in relation to the process of productive restructuring developed in the last years, this research sought to organizationally map out four Chinese factories. Quantitative and qualitative data were produced and gathered together from workers, managers, managers of public and private institutions, and Chinese expatriates. The research findings show that the Chinese, on the one hand, incorporated the local production pattern but, on the other hand, reshaped labour management. Such remodelling I called "taylorization with Chinese characteristics", which operates under the duality of being, at the same time, Made in China, but Produced at the Industrial Cluster of Manaus. As a fundamental element of this process, it was observed that strong socio-productive linkages between parent-subsidiary generate fragile socio-productive links in the Industrial Cluster of Manaus, implying high control of the Manauara workforce and Chinese expatriates. In spite of this, there has been a process of "appropriateness / injunction" that causes some "Chinese characteristics" to be deepened while others have to undergo transformations.
Análise do desempenho do leito vibrofluidizado na secagem de pasta
(Universidade Federal de São Carlos, 2017-05-05)
Costa, Ariany Binda Silva
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Freire, Fábio Bentes
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https://lattes.cnpq.br/8937961078558996
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Freire, José Teixeira
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https://lattes.cnpq.br/2270677706718167
The agitation promoted by the vibrofluidized bed allows the incorporation of several unitary operations such as granulation, coating of particle, drying of grains, and the drying of pasty materials. However, it is necessary more studies about the drying of paste in this equipment, since according to the work of Daleffe (2005) and Meili (2009) it was verified that a same dimensionless vibration number (Γ) presented different dynamics behaviors and influenced in distinct ways in the process. To understand more about the interference that the vibrational parameters may exert in this type of operation, that the goal of this present work was to develop a more detailed study on the drying of skimmed milk in vibrofluidized bed, varying the intensities of agitation imposed to the bed, two Amplitude (A) from 0.003m and 0.015m combined at frequencies (f) ranging from 100 to 1100 RPM. Thus, firstly, it was analyzed the influence that the vibrational parameters exercised on the characteristic curves of the pressure drop and the standard deviation of pressure drop in function of the superficial velocity of the fluid (Us), when the bed was constituted with glass beads with the diameters of 0.00119m, 0.00219m, and 0.00319m. Thereafter, water evaporation tests were performed to determine the size of the inert material and the experimental conditions that would be used in the paste drying trials. For the drying of the skimmed milk has been used glass beads with 0.00319m of average diameter, air temperature of 100 ° C, surface velocity of 20% higher than minimum fluidization velocity (Umf), different agitation intensities and different paste feed rates. During the experiments, the influence of agitation on the dimensionless pressure drop, air temperature at the bed outlet, relative air humidity at the bed outlet, powder moisture content, powder production rates and powder accumulation rates were analyzed. Analyzing the obtained results, it may be verified in the two amplitudes that the increase of the agitation intensity, through the increase of the frequency, allowed the use of higher maximum feeds rates of skimmed milk in the equipment. It was also observed, for the values of Γ almost constant with different combinations of A and f, that the agitation with amplitude of 0.015m resulted in the greatest variations of pressure drop during the process, in the lower relative humidity levels, in the higher powder production rate and higher powder accumulation rates at the exit of the cyclone. In this way emphasizing the importance to inform A and f to characterize the implemented vibration in the vibrofuidized bed. From these experimental data was designed a hybrid CST / Neural to describe the heat and mass transfer phenomena that occurred during the drying of skim milk. The results showed that the proposed model presented a great agreement with the experimental data, assuming that the vibrofluidized bed behaved as a perfectly stirred tank.
Eleição de líder com qualidade de serviço para o modelo falha-e-recuperação
(Universidade Federal de São Carlos, 2017-05-05)
Reis, Vinícius Angiolucci
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Vieira, Gustavo Maciel Dias
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https://lattes.cnpq.br/9020007815886406
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https://lattes.cnpq.br/1535333547015731
A distributed system is a set of processes and links that is desgined to provide computing power and data persistency, even on the presence of failures. To encapsulate the abstraction of time and to determine which processes have currently failed, these distributed systems are based on unreliable failure detectors, which in its turn are used as a leader election service. Many works are dedicated to analyze the quality of service (QoS) of failure detectors, but a few of them has analyzed the QoS of a leader election algorithm. In this work, we present the NFD-L leader election algorithm, designed to work on crash-recovery distributed systems and to follow the QoS specification defined by Chen, Toueg e Aguilera (2002). We used NFD-L to elect Paxos coordinators for a replication framework and compared the observed QoS for NFD-L with the behavior of the framework native leader election algorithm that is not designed to explicitly meet any QoS requirement.
Avaliação do potencial antimicrobiano e leishmanicida de materiais orgânicos derivados da base de Schiff N,N-bis’(Salicilideno)-1,2-fenilenodiamina
(Universidade Federal de São Carlos, 2017-05-05)
Soriano, Bianca
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Sousa, Cristina Paiva de
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https://lattes.cnpq.br/9002619114161319
;
https://lattes.cnpq.br/6431092009628550
Bacteria and fungi are the main etiological agents potentially causing health care-related infections and the fourth leading cause of death, according to the WHO. Parasitic agents such as Leishmania infantum chagasi, the causative agent of leishmaniasis, neglected and endemic disease, have treatments that are not always eﬀective and have serious side eﬀects. Resistance to antibiotics, antimycotics and leishmanicides, has increasingly induced bioprospecting and synthesis of new substances with pharmacological properties. The Schiﬀ bases, especially those derived from the N, N’-bis (salylcilidene) -1,2-phenylenediamine linker, also known as Salofen, have been studied in order to demonstrate the physical, chemical and biological properties due to Variety of potential technological applications. The objective of this work was to evaluate the biotechnological potential of the Schiﬀ N, N’-bis (salylcilidene) -1,2-phenylenediamine (Salofen) base derivative in relation to the antimicrobial and leishmanicidal activity. Agar diﬀusion techniques and microdilution assays were used for bacterial and yeast studies, and the colorimetric method with Alamar Blue® for Leishmania tests at 24 and 48 hours. Inhibition halos were observed for all microorganisms tested, with the highest mean halos (30 mm) for Candida albicans. Dilution assays have shown promising results, with inhibition rates above 90%, emphasizing better Gram-negative efciency. The leishmanicidal eﬀect was also observed with IC50 at 1.06 mg.mL−1 at 24 hours and 0.66 mg.mL−1 at 48 hours. Thus, the data collected suggest that the Schiﬀ base tested has an antimicrobial and leishmanicidal potential of the compound studied, suggesting a biotechnological application.
Relações entre infância, escola e religião : etnografia dos Baniwa do médio Içana
(Universidade Federal de São Carlos, 2017-05-05)
Marqui, Amanda Rodrigues
;
Cohn, Clarice
;
https://lattes.cnpq.br/1714080901123094
;
https://lattes.cnpq.br/1696584969032916
This dissertation is about the relations of childhood, school and evangelical religion of the Baniwa people, who live in the Upper Rio Negro, northwest Amazon. From ethnographic experience in communities of the Middle Rio Içana aspects of Baniwa sociality in the formation of their children are addressed in this dissertation, considering the school and the evangelical religion contexts. The school context is one of the common threads of the ethnographic narrative since the entry into the field happened after an invitation received from the Moliweni school in Vista Alegre community located in the Cuiari River within the scope of the UFSCar Observatory of Indigenous School Education. The religious and school events in Baniwa communities of the Middle Içana demonstrate the importance of religion in its social organization as well as its influence in the debates regarding differentiated Baniwa school education. Thus, this ethnography describes the formativa process of children anf young in their communities in school and religious spaces to understand the meaning of good living in the Baniwa communites of the Middle Içana
Uma análise do universo ficcional de Doctor Who e de seus arquétipos centrais
(Universidade Federal de São Carlos, 2017-05-05)
Contartesi, Felipe
;
Andrade, Leonardo Antônio de
;
https://lattes.cnpq.br/3921612856948891
;
https://lattes.cnpq.br/1092242500436134
Doctor Who, a British series created and produced by the BBC since 1963 has been devoted as one of the oldest and most successful series of fiction for television. The series has set its course and achieved cult status, becoming the success it is today with an extensive amount of episodes and seasons and a large expansion of its narrative universe to other media such as movies, comics, literature, digital and analog games. The expansion of a work brings a series of obstacles, a vast narrative maintained for so long and in so many media, undergoes several changes with the passage of time, the fans can also change or have different expectations. Nevertheless some series like Doctor Who, manage to remain firm and coherent over time. These series can find and construct a solid identity that is interesting and acceptable to its fans, this identity is related to the archetypes of the fictional universe of the series and is what often guides the narrative direction and the migration of this narrative to other media, this study aimed to analyze and punctuate the elements that define this identity of Doctor Who and how this can contribute to the production and study of vast transmedia narratives.