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Ferramentas quimiométricas aplicadas na avaliação de estratégias que visam a remoção de íons fluoreto em efluente de drenagem ácida de mina
(Universidade Federal de São Carlos, 2017-05-19)
Rodrigues, Fabio William
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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/8761227302227960
The goal of this study is to provide improvements in the treatment of effluents from acid rock drainage (ARD) of the Mineral Treatment Unit (Caldas / MG) of the Nuclear Industries of Brazil (INB). Due to the presence of fluoride ions in the effluent, the costs of inputs and waste management are in the order of millions of reais per year. Thus, the search for alternative solutions or an optimized condition is of paramount importance, making the current treatment system more efficient from a financial, environmental and social point of view. Of the nine materials initially tested for fluoride removal, five were selected because of the best performance: gypsum, manganese dioxide, alumina, aluminum sulfate and aluminum polychloride. Following, a selection of variables that influence the removal of fluoride was done considering: Dosage of Hydrated Lime; Stage of Addition; Time and Material Dosage, by means of fractional factorial design for each material (5 x 23-1 ). Then, with the variables and materials selected, the work was directed to obtain a response surface that allowed identifying the optimum working region, considering the responses: final fluoride concentration, costs and mass generation of solids. For this, Doehlert type design was used with three variables (13 experiments + 3 replicates) and the evaluated responses were transformed, according to criteria, through desirability function. After obtaining the response surfaces and after the models validation for the best performance materials: gypsum and hydrated lime, the efficiency of the use of gypsum - solid effluent from the treatment of ARD - was tested on continuous scale by a pilot plant operation. It was concluded that the addition of gypsum in two different points in the treatment reached the objective of fluoride concentration (less than 10.0 mg / L) with lower cost of inputs. The proposal allows cost reduction in the order of hundreds of thousands of reais per year.
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais
(Universidade Federal de São Carlos, 2017-05-19)
Otoni, Caio Gomide
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Aouada, Márcia Regina de Moura
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https://lattes.cnpq.br/2870655742911951
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Mattoso, Luiz Henrique Capparelli
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https://lattes.cnpq.br/5839043594908917
The ever-growing environmental concern arising from the unrestricted exploitation of fossil raw materials for the massive production of non-biodegradable materials, guided by the rapid increase in the world population as well as in the demand for foodstuffs, encourages research on alternative materials from renewable sources. Herein, edible biocomposites based on peach puree or carrot processing waste (CPW) were produced. Hydroxypropyl methylcellulose (HPMC) and cellulose fibers were added to play ligand and mechanical reinforcement roles, respectively. Previously, the film-forming components were comprehensively studied separately. The effects of HPMC chemical structure were investigated in order to choose a grade – Methocel® E4M – that leads to suitable physical-mechanical performance. Cellulose fibers were miniaturized by high-pressure microfluidization and its dispersion within the HPMC matrix was optimized through a central composite design (CCD). Seven microfluidization cicles were found to be ideal for the mechanical reinforcement of the matrix. Once the behaviors of miniaturized cellulose fibers, peach puree, and CPW in the HPMC matrix were elucidated, ternary mixture designs were carried out to set up correlations among biocomposites’ formulations and their mechanical properties. Optimized formulations were used to produce (i) biodegradable biocomposites featuring suitable physical-mechanical properties for packaging applications – using CPW, HPMC, and cellulose fibers – and (ii) edible bioplastics having unique sensory and nutritional characteristics by means of combining peach puree and HPMC. Finally, the production protocols of both materials were successfully scaled-up towards a pilot scale through a continuous casting approach, being the influence of the processing protocols on materials’ properties investigated.
Análise do uso do pensamento estatístico e de técnicas estatísticas em empresas industriais do Estado de São Paulo
(Universidade Federal de São Carlos, 2017-05-19)
Santos, Heitor Alves dos
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Toledo, José Carlos de
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https://lattes.cnpq.br/9421627326330417
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https://lattes.cnpq.br/3300398608680709
In order to reduce variability and improve the performance of production systems, companies seek to apply improvement programs such as Lean Manufacturing (LM), Total Quality Management (TQM), Six Sigma (SS) , Lean Six Sigma (LSS) and TPM (Total Productive Maintenance), among others. According to Makrymichalos et al. (2005) it is necessary to verify the theoretical foundations that underlie these programs in order to be used more efficiently and consequently the companies achieve acceptable results. To that end, these programs at different levels are based on Statistical Thinking (ST) and Statistical Techniques (STech). This dissertation presents the results of a research survey, with 243 industrial companies from the Sao Paulo State, with the objective of analyzing the level of presence of ST and STech in the improvement programs and the perceived results with their use. A group called "Advanced Companies" representing 16.9% of the sample, was identified in the statistical analysis, the companies in this group are the most grounded in the use of ST and STech. In addition, 29.26% of them were able to obtain perceived operational results, 26.82% obtained subjective benefits perceived with the application of ST and STech principles and 17.07% obtained both perceived operational results and subjective benefits with the use of ST and STech. The companies in this group obtained these results mainly due to the use of SS and LSS for more than 5 years. These programs incorporate the ST principles more intensively and use the basic, intermediate and especially advanced STechs.
Dinâmica do uso da terra e naturalidade do entorno da Floresta Nacional de Irati
(Universidade Federal de São Carlos, 2017-05-19)
Almeida, Dayana
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Bogaert, Jan
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Santos, José Eduardo dos
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https://lattes.cnpq.br/8533387365058570
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https://lattes.cnpq.br/8099346855929913
Protected areas are an important strategy for the maintenance of biodiversity. However, land use dynamics of the protected areas buffer zones receive little attention in literature. The goal of this research was to identify the landscape constraints and modelers in order to maintain the naturalness of the scenarios surrounding Irati National Forest, based on the temporal and spatial dynamics of the land use and cover analysis and the Distance to Nature Index (D2N) application for the period from 1986 to 2016. The land use and cover dynamics for the study area was obtained by on-screen digitizing of LandSat-5 and LandSat-8 imagery for 1986, 1997, 2011, and 2016 in ArcGis 10.2 software, using the hemeroby scale. A trajectorie analises between the years 1986-1997, 1997-2011, 2011-2016, 1986-2016, and 1986-2016 were used to evaluate the landscape dynamics. The D2N index was applied to measure the anthropogenic impact on biodiversity based on the dynamics of land use and cover of the study area for the four years. To test the null hypothesis of the D2N index between 1986, 1997, 2011, and 2016, a multivariate permutation analysis with Euclidean distance was performed. There was an increase of the anthropisation in the surrounding Irati National Forest. However, the region still presents an expressive degree of naturalness, mainly when compared to others surrounding protected areas. The changes in the landscape presented a different dynamic regarding the different agricultural production systems in the study area. In this way, as the maintenance practices of Irati National Forest natural condition and its surroundings will also present different profiles of each production system. The statistical analysis of the D2N results shows that only 1997 presented a statistically significant difference. The results demonstrate that D2N can be an effective tool for monitoring and planning to identify a natural condition and areas with greater anthropogenic influence, proposing scenarios for biodiversity conservation.
Aluno com altas habilidades/superdotação: um estudo longitudinal a partir da teoria das inteligências múltiplas
(Universidade Federal de São Carlos, 2017-05-23)
Marques, Danitiele Maria Calazans
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Costa, Maria da Piedade Resende da
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https://lattes.cnpq.br/2791098416503955
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https://lattes.cnpq.br/0940222268032312
The process of recognition, identification and attendance to the student with High Abilities is something still seen by the school system in a very complex way, full of barriers and exclusion to the most capable student. Given this reality, this thesis presents a general objective of longitudinal analysis of the process of recognition, identification and attendance of a student with indicators of High Abilities/Giftedness in the multifaceted view of Multiple Intelligences. Specific objectives include: (i) to explorer and evaluating student identification procedures in the precocity phase; (ii) to develop and describe a procedure for identifying and assisting students with High Abilities/Giftedness in the multifunctional resource room; (iii) to organize strategies that facilitate the pedagogical practice of the Special Education teacher in the care of the student with High Abilities/Giftedness; (iv) investigate the teacher's conception of the regular classroom in having a student with High Abilities/Giftedness; (v) to analyze the conception of the Special Education teacher in relation to the attendance of the student with High Abilities/Giftedness in the multifunctional resource room; (vi) to investigate the consequences of the process of acceleration in the trajectory of the student; (vii)to analyze the conception of the parents in relation to the academic trajectory of the student. The research took place from 2012 to 2016, during which time the student from five to nine years old was accompanied. This study was based on the Longitudinal Non-Experimental Survey, with case study delineation. Participants included a student, his parents, his teacher of Early Childhood Education, his teacher of the 2nd year of Elementary School and his teacher of Special Education. For data collection, interviews, questionnaires and questionnaires were used. The Research had as theoretical foundation the Theory of Multiple Intelligences. The data analyzes were carried out from a screening of student identification with high skills/gifted indicators and from interviews to ascertain the parents 'and teachers' conceptions about the student with High Abilities/Giftedness. As results, at five years of age, the student presented indicators of precocity. These characteristics were continuous and frequent; thus, it was concluded that the manifestation of precocity was one of the indicators for the identification of high skills/giftedness of the student. The process of acceleration according to the conception of parents and the teacher of Special Education occurred in a positive way, providing the student with motivation and enthusiasm to attend school. The Specialized Educational Attendance held in the multifunctional resource room occurred from 2012 to 2016, as a form of enrichment. From the evaluation triage the student was identified as a student with High Abilities/Academic giftedness, above average capacity in the areas of Language (oral and written), Mathematics, Space, Science and Technology.
Análise dos fatores de competitividade da cadeia produtiva da polpa do açaí do nordeste paraense
(Universidade Federal de São Carlos, 2017-05-23)
Araujo, Dinaldo do Nascimento
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Souza Filho, Hildo Meirelles de
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https://lattes.cnpq.br/3740950346967524
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https://lattes.cnpq.br/7146698983497575
The work is dedicated to the study of the açaí pulp chain in northeastern Pará, which is the main production region of the Brazilian açaí. Despite the growth of açaí fruit collection and processing, there is a set of elements that delay the competitiveness of this chain, and the research problem that the work sought to answer was what are the determining factors and what are the critical factors for the competitiveness of the açaí chain. The main objective is to describe and evaluate the impact of the main determinants of the competitiveness of the production chain of the açaí pulp, with focus on the rural production and the processing links. It is provided a characterization of the chain, an identification and evaluation of the main factors of competitiveness and guidelines for future public policies and private strategies. The theoretical basis considered for the research comprises an approach on competitiveness, agrichain and factors of competitiveness. The method used for the execution of the research was the Rapid Appraisal, where semi-structured questionnaires were elaborated for the agents. The main key agents taken into consideration were: açaí producers (farming and extrativism); middleman; representatives of organizations; directors of processing companies and artisan açaí processors. The competitiveness factors defined for this study were: inputs, technology, market structure, governance structure and coordination of the chain, storage and transport and institutional environment. The results achieved are limited to the sample intentionally considered. For the agents of the production link, the factors that positively impact the chain are the technology, market structure and governance structure and coordination of the chain. In the perception of the agents of the processing link, the factors inputs, technology, market structure, governance structure and coordination, storage and transport and institutional environment are neutral for competitiveness. The main critical factors for the competitiveness of the chain were: labor costs, idle fruit processing, conditions and safety of ports and highways, access to credit and better market rates, legalization of the production’s areas, lack of government actions and chagas disease.
Distribuições k-modificadas da família Série de Potência uniparamétrica
(Universidade Federal de São Carlos, 2017-05-23)
Carvalho, Sérgio Ozório de
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Conceição, Katiane Silva
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https://lattes.cnpq.br/5789619620619667
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https://lattes.cnpq.br/0096181150921562
This paper proposes a family of distributions Power Series k-Modified from to model sets of count data which have or not any discrepancy in the frequency of observation k in relation to the distribution associated Power Series. Is understood as a modification, inclusion of a parameter in the mass function of probability of the distribution Power Series, making this new family of distributions able to adequately model the data set in cases where there is excess (inflation), poor (deflation) the absence or even when the frequency of the observations k is according to the distribution power series. For this new family of distributions are presented some properties as the distribution functions, Statistics Order among others, besides contextualizes it as mixing model and place it in the context of regression models. The distributions considered for the construction of this new family will be uni-parametric distributions belonging to the Power Series family, whose probability mass function can be written in terms of their average.
A politicidade da educação a partir da experiência de uma docente de sociologia
(Universidade Federal de São Carlos, 2017-05-24)
Chaves, Silvania Maria
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Ferreira, Dulcinéia de Fátima
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https://lattes.cnpq.br/9339578170693084
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https://lattes.cnpq.br/5381402934936368
This job had as objective Reflect and reaffirm Education as a political act and democracy. The studies conducted evidence we are living in times of setback regression, marked by loss of rights and by the productions of impotence and suffering: the capitalist Western rationality has produced, in this way, atomized, fragile individuals and the idea that changing reality is impossible. Although this context contributes to the construction of conformed subjectivities, we perceive History as a possibility in which men and women are subjects of change and resistance in midst of forces that act, simultaneously, in a regulatory and emancipatory manner. From the perspective of education as a possibility, as a result of historical time, we share powerful experiences, loaded with how to understand education as a political act, held in the sociology classes of the State School Aggêo Pereira do Amaral, located in Sorocaba, in the interior of the State of São Paulo, considering that they are tools for confronting the dynamics of servitude, prejudice, racism, fascism and machismo, intricate in the daily microrelations. Based on the theoretical dialogues and the narrated experiences, we affirm that pedagogical practices based on solidarity, dialogue and cooperation open doors to the creation of emancipatory sociability’s and constitute seeds for the construction of a world did from humanized and democratic relations. The educational processes and ongoing resistance movements shared in this research fuel the hope that another reality is possible and that social transformation will occur through collective action. In a scenario that has denied politics, we reaffirm it as an extension of life as a power.
Análise de parabenos em águas superficiais urbanas por extração em fase sólida on-line usando cromatografia líquida acoplada à espectrometria de massas
(Universidade Federal de São Carlos, 2017-05-24)
Triano, Simone Pereira do Nascimento
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Cass, Quezia Bezerra
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https://lattes.cnpq.br/9197210255594409
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https://lattes.cnpq.br/4783199000732777
Parabens are the most popular antimicrobials used for more than 100 years in personal care products, the most known are methylpaben, ethylparaben, propylparaben and butylparaben. The continued release of these antimicrobials turned them into corganic pollutants. Therefore, methods that allow quantification at low limits are important. The present study discusses the development and validation of the analytical method by direct injection of samples into solid phase extraction using liquid chromatography coupled to the mass spectrometer for determination at low levels in spring water and waste water (ng/L) from the city of São Carlos - SP. Methylparaben at 20.0 ng/L was found in river water sample from latitude 22°00’68”S, longitude: 47°90’47”W ; methylparaben at 18.0 ng/L and butylparaben 4.1 ng/L were found in urban water sample latitude: 22°02’21”S, longitude: 47°91’40”W around Monjolinho River. The attractiveness of the developed method consists of the low volume of samples and solvents required for analyses. The four parabens were quantified in the native matrix in a total run time of 9.5 min.
As dinâmicas do mercado das coproduções cinematográficas entre Brasil e França
(Universidade Federal de São Carlos, 2017-05-25)
Figueiró, Belisa Brião
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Sá Neto, Arthur Autran Franco de
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https://lattes.cnpq.br/5055550097454248
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https://lattes.cnpq.br/1473190334495715
This research investigates movie coproductions between Brazil and France, made between 1998 and 2014, trying to assess the percourse from the international co-elaboration to the distribution of such movies in the French circuit theaters. The analysis begins with the historical antecedents of cooperation, with the French protagonism in establishing policies to integrate and disseminate its culture, a model that influences countries around the world to this day. Next, we examine the attempts by Brazilian governments to reach the external market, the beginning of the historical approximation to France, the first official co-production agreement (1969) and the current one, signed in 2010. This study also presents a wide assessment of the Brazilian movies that were released in France, using data from Brazilian and French primary sources, and looks in depth at the release and repercussion in France of four study cases: Central do Brasil (1998), Abril despedaçado (2003), both by Walter Salles; O outro lado da rua (2006) and Meu pé de laranja lima (2013), both by Marcos Bernstein. The key questions this dissertation tries to answer are: how much coproduction in fact contributes to the opening of new markets; whether French coproductors influence in the distribution of the movie in their territory; and whether Brazilian policies have advanced beyond promotion and diffusion of movies in international festivals.
Efeito do bloqueio dos receptores mineralocorticoides da região infra-límbica do córtex pré-frontal medial sobre a tolerância aos efeitos do midazolam em camundongos submetidos ao protocolo de teste e reteste no labirinto em cruz elevado
(Universidade Federal de São Carlos, 2017-05-25)
Mariano, Kairo Alan Albernaz
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Souza, Azair Liane Matos do Canto de
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https://lattes.cnpq.br/2352004564367849
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https://lattes.cnpq.br/7319163408106355
Several studies have shown that the previous experience (trial 1) to the elevated plus-maze (EPM) increases the avoidance of the open arms and impairs the anxiolytic-like effect of midazolam (MDZ), a benzodiazepine-GABAA receptor agonist, in a subsequent exposure (trial 2) to the maze, a phenomenon known as "one trial tolerance" (OTT). One hypothesis is that the learning generated in the first exposure allows a change in the strategy adopted by the animal. Considering that the infralimbic region (IL) of the medial prefrontal cortex (mPFC) would be involved in neuroendocrine modulation induced by stress, this study investigated the effects of intra-mPFC injection (region IL) of RU28318 (mineralocorticoid receptor antagonist, MR) in the memory acquisition and consolidation phase, in the tolerance to MDZ effects in mice exposed to the trial 1 and trial 2 in the LCE. Male Swiss mice (n = 8-12 per group) were used, and when necessary, bilateral cannulae were surgically implanted bilaterally in the IL region of the mPFC. Experiment 1: The animals of each group received intraperitoneal (i.p.) injection of saline or MDZ (2mg/kg) and after 30 minutes were exposed to trial 1 for 5 minutes in the EPM. After 24 hours, the mice received either systemic injection of saline or MDZ (2mg/kg) and 30 minutes later they were individually exposed to trial 2 in the LCE for 5 minutes. Experiment 2 (acquisition phase): After four days of recovery the subjects of each group received intra-mPFC injection of vehicle or RU28318 (5 ou 10ng/0,1μl) and were exposed to trial 1 for 5 minutes. After 24 hours, each mouse received systemic injection (intraperitoneal, i.p.) of saline or midazolam (2mg/kg) and 30 minutes later was individually exposed to the Trial 2. Experiment 3 (consolidation phase): After four days of recovery the subjects of each group were exposed to the EPM test for 5 minutes and subsequently received intra-mPFC injection of vehicle or RU28318 (5 or 10ng/0.1μl). After 24 hours, the mice received either systemic injection of vehicle or MDZ (2mg/kg) and 30 minutes later they were individually exposed to trial 2 in the EPM for 5 minutes. The injection MDZ produced anxiolytic-like effect in animals exposed to the trial 1 to the EPM, characterized by increased exploration in the open arms and reduction of risk assessment behaviors without affecting the locomotor activity. This effect was abolished in the retest, confirming the OTT. Two-way ANOVA that intra-mPFC infusion of RU28318 did not modify any behavior in trial 1. However, it was observed that when administered prior to EPM, it reestablished the anxiolytic effect of MDZ administered prior to retest. When infused after the test period, RU28318 did not modify the OTT phenomenon for the MDZ. The MR antagonism in the IL region of the mPFC, seems to interfere with the memory acquisition phase but not the consolidation phase. Thus, we suggest that MR blockade of the IL region of the mPFC may interfere with the acquisition, but not the consolidation, appropriate information during trial, influencing the OTT phenomenon.
A conservação da fauna silvestre no interior paulista: concepções e criação de espaço educador em escola rural de Capivari – SP
(Universidade Federal de São Carlos, 2017-05-25)
Angelim, Karen Bertoldo
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Schlindwein, Marcelo Nivert
;
https://lattes.cnpq.br/9690898537150950
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https://lattes.cnpq.br/7537333388624499
The conservation of biodiversity is crucial, but it is still an ambitious challenge in the development of Government Policies in the context of cities management. There has never been a study of the wildlife in rural areas in the city of Capivari-SP; in addition, just a few environmental education initiatives were developed with regards to this subject within the scope of municipal school education. In this sense, this work aims to analyze the biodiversity and wildlife conceptions from elementary school students in a rural school in the city of Capivari and employees of the region's mills and factories. It also aims to understand the strategies that teachers on this same school use to touch on the matter of conservation of biodiversity and regional wildlife with the students, in order to develop a process of participatory construction of an educational space in a perspective of critical environmental education, aiming at conservation of the jaguar (Puma concolor). In addition, a secondary study of wildlife in the rural area of the city was carried out using tools such as drawings and questionnaires completed by the participants of the research and also by searching for directly and indirectly traces for one month. The research was conducted in a qualitative approach and used as instruments of data collection questionnaires and focus groups with the students, interviews with the teachers and visitors of the educator space, and questionnaires with the workers of the São José mill. As a result of the students conceptions study, we observed that the students of the 5th and 4th year do not know how to explain what biodiversity and wildlife are, but they do know how to draw animals from the wild fauna that they have seen in the region, the teachers of the 4th and 5th year of the municipal school only use the content of the books adopted by the city government and the projects given by the Municipal Education Department, but it did not carry out environmental education projects in 2016 that aimed at the conservation of wildlife in the city. The educational space has a great participation from the school community, residents of the neighborhood and students from other schools. It is clear that the population encourages and supports the creation of spaces like this. Employees of the mill, when encountering a specimen of brown jaguar, would call the responsible bodies and not injure the animal. As a result of the preliminary study of the wildlife the following animals were found: otter, Tayra, maned wolf, anteater, small-tailed cat, jaguarondi, coati, bush dog, skunk and capybara.
Ansiedade induzida pelo modelo de empatia para dor : o papel da neurotransmissão GABAa-benzodiazepínica na modulação da ansiedade em camundongos
(Universidade Federal de São Carlos, 2017-05-26)
Carmona, Isabela Miranda
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Souza, Azair Liane Matos do Canto de
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https://lattes.cnpq.br/2352004564367849
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https://lattes.cnpq.br/2950733595921138
Anxiety is a fundamental emotional phenomenon, essential within the affective repertoire and its importance for the understanding of the emotional behaviors of the individuals promoted the development of preclinical studies that contribute to the understanding of the neurobilogical bases involved in this modulation. Studies have demonstrated the involvement of the amygdaloid complex in emotional behaviors related to anxiety and that and GABAA-benzodiazepine receptors play important role in the modulation of anxiety and nociception in animal models. Cohabiting with chronic pain produces an increase in anxiety in the observer mouse, these evidences support that through anxiety-like responses it is possible to observe the existence of emotional behavior present among the animals, characterized as empathy-like behaviors. This study investigated the effects of systemic and intra-amygdala injection of midazolam (MDZ), a GABAA-benzodiazepine receptor agonist, on the modulation of anxiety induced by cohabiting with a cagemate in neuropathic pain in mice exposed to the elevated plus-maze (EPM). For this, male Swiss mice were housed in pairs and after 14 days were divided into two groups: cagemate nerve constriction (CNC), in which one animal from each pair was subjected to sciatic nerve constriction; cagemate sham (Sham), one animal from each pair was subjected to the same surgery but without constriction and in the 28th day, the observer cagemates were submitted to EPM for five minutes. Experiment 1: the observer cagemates received systemic injections of saline or midazolam (0.5, 1.0 or 2.0 mg/kg, intraperitoneal, i.p.) and 30 minutes after were exposed to elevated plus-maze. Experiment 2: In the 23th day, bilateral cannulae were surgically implanted in the amygdala of the observer cagemate and in the 28th day, the observer cagemate received intra-amygdala injections of saline or midazolam (3 e 30 nmol/0,1µl) and 5 minutes after were exposed EPM. Two-way ANOVA followed by post hoc Duncan test revealed that living with a cagemate in neuropathic pain is able to increase anxiety-like behavior in mice, suggesting the influence that cohabiting with nociception causes in the observer cagemate. In the experiment 1, MDZ (1,0 e 2,0 mg/Kg) was able to produces anxiolytic-like effect on the EPM, characterized by increase the open arms exploration and decrease risk assessment-like behaviors, with the absence of significant changes in locomotor activity. In the experiment 2, in the same way MDZ was able to produces anxiolytic-like effect on the EPM. These results suggests that the cohabitation with a CNC induce anxiogenic-like responses in the observer mouse and the GABAA/benzodiazepine receptor complex located within the amygdala participates in modulation of anxiety-induced model of empathy in mice.
Do fim do trabalho ao trabalho sem fim: o trabalho e a vida dos trabalhadores digitais em Home Office
(Universidade Federal de São Carlos, 2017-05-26)
Oliveira, Daniela Ribeiro de
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Lima, Jacob Carlos
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https://lattes.cnpq.br/9244132532446607
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https://lattes.cnpq.br/3340719766336945
Digital workers are a privileged category for understanding current job settings in which different ways of organizing, managing, and performing work are set. The digital worker organizes his life around projects, with flexible times and his career path and permanence in the work depends on permanent updating. The objective of the research was to analyze the relationship between work and life of digital workers, trying to understand to what extent the work of software development, with various forms of organization and time-space management, reflects on the organization of workers' private lives and Family relationships, friendship, leisure, etc. Through the occupational trajectories we try to trace workers' perceptions about life and work when they are working partially or totally in home office. To meet the research objectives, we conducted 53 semi-structured interviews, of which only 29 interviews were selected for discussion in this thesis. The criterion for selection sought those that represented the diversity of the empirical field in terms of gender cut, work places, types of contractual ties, types of activities performed, size of company and because they represent a diverse picture of work experiences In home office. We note a diversity of home office work arrangements practiced by digital workers. Work is done more at home than in the office, since the workers take advantage of the times saved due to the absence of displacements, intervals of snacks and rest, to continue carrying out the activities. Turning off the computer does not mean disconnecting from the job. The feeling of loneliness and the fear of becoming invisible to the office staff are grounds for digital workers to refuse (if they have a choice) work in home office or wish to leave the modality; Workers with more career time tend to resist (micro resistance) the excesses of demands and to work going through all the free time. Male representations of the presence of women in the sector are surrounded by gender stereotypes. The justifications of which particular occupations are most appropriate for women because of their gender markers (detailed, attentive, etc.) are recurrent among men.
Coletivo Cê: processos e percursos de redesterritorialização: aprendendo com a experiência
(Universidade Federal de São Carlos, 2017-05-26)
Almeida, Hércules Soares de
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Ferreira, Dulcinéia de Fátima
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https://lattes.cnpq.br/9339578170693084
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https://lattes.cnpq.br/5128703213868329
The framework presented here proposes to share a cartography of the processes and paths of the deterritorialization and reterritorialization of Coletivo Cê. It is also a scratch to the surface about the knowledge of experience and ethical, aesthetic and political movements in research about education. We will present ways that allowed a research carried out from the perspective of implication, requiring a vibrating body and implied in the research. The author of this research has been working on the Coletivo Cê for more than seven years. The Coletivo Cê is a group of artists who research the language of theater, in the city of Votorantim, São Paulo. This research goal was to trace the processes and routes from the year of its foundation in 2009 to the present day. Within this proposal, there was also a close look at the concepts of authors who lead and compose the living and pulsating picture of cartography, such as Gilles Deleuze, Félix Guattari, Suely Rolnik, Jacques Ranciére, Jorge Larrosa Bondía, Paulo Freire, sociologist Boaventura de Souza Santos and others who believe in the work of thought as a vibrating space of our urgencies. An intellectual production in the field of Education, proposing cartography as an aesthetic possibility for the urgencies that plague us, able to understand the "educate" mediated by artistic actions of cultural collectives groups, which can become a practice of social transformation for the emancipation of people.
Limites e potencialidades da formação e atuação em rede de cooperativas de catadore(a)s de materiais recicláveis: caso da Rede Anastácia, estado de São Paulo
(Universidade Federal de São Carlos, 2017-05-26)
Soares, Alexandra Savio
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Teixeira, Bernardo Arantes do Nascimento
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https://lattes.cnpq.br/1166854416745527
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https://lattes.cnpq.br/5618886599186541
The work carried out by recyclable waste pickers is of great importance, not only for the reuse of the materials, but also for their benefit to the environment, reducing the amount of waste that goes to landfills and landfills. Despite the significant work done by the collectors, it is verified that in the recycling chain these are the least benefited. The reasons for this are diverse, such as the organizational and infrastructure precariousness of the enterprises, the lack of support and recognition for the service provided to society, the action of the intermediaries who buy the materials at very low prices, among others. In order to improve the participation of the collectors in the recycling chain, some initiatives are being taken, such as the formation of cooperation networks of solid economic enterprises, which among the objectives is to strengthen the way of work and performance of the collectors. Based on this idea, Rede Anastácia was created in the central region of the state of São Paulo and Alta Mogiana, which is a regional network of collectors of recyclable materials that counts on the participation of eight cooperatives located in different municipalities of the state. In this way, a research was conducted with the Rede Anastácia, from May / 2015 to October / 2016, which used the exploratory method, with direct observation of a qualitative approach, through a visit to cooperatives, photographic records, analyzes Of documents, participation in meetings and activities, in order to identify and evaluate the limits and potentialities of the formation and operation of cooperation networks. As results, information on cooperative characteristics, creation and formalization of the network, its main articulations (meetings and activities) to strengthen cooperatives, the expectations of the collectors to belong to the network and the main limits and potentialities were obtained. Among the limitations identified are the need for improvements in the infrastructure of cooperatives; The distance between them and the lack of standardization in the types of materials sorted and detailed record on productivity, which ends up hampering joint marketing actions. As potentialities: there was an increase in the exchange of information among cooperatives; Greater possibility of participation in projects of technical and financial incentive; Greater political representativeness; Conducting joint sales; Participation in reverse logistics systems, among others. Regarding the collectors' expectations of belonging to the network, it was verified that they believe that there may be an improvement in the valorization and recognition of the work done by the collector, greater possibility of realizing joint marketing and verticalization of materials, among other aspects.
Um estudo de estresse através dos níveis de cortisol em crianças
(Universidade Federal de São Carlos, 2017-05-26)
Mendes, Karine Zanuto
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Campos, Adriano Polpo de
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https://lattes.cnpq.br/4867996651212204
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https://lattes.cnpq.br/2574720289303855
The level of cortisol is considered as a measure of people’s stress. We perform an statistical analysis of the data from a study conducted to evaluate if children that work on the streets during the day have higher stress than children who does not work. The cortisol level of a person can be considered as an increasing function until reaching a maximum level and then decreasing to almost zero (quasi-concave function). Children’s cortisol were collected 4 times in one day, where two groups of children were considered: those who work in the street and those who stay at home. To analyse the data we considered a meta-analysis of a functional data model under Bayesian approach. Each individual is analysed by a functional data model,and then, a meta-analysis was used to have inference for each group. We used the Gibbs Metropolis-Hastings method to sample from the posteriori distribution. Also,we calculated the pointwise posterior probability of the cortisol function of one group being greater than the cortisol function of other group to compare the groups.
Sistema de remoção de água de lodo gerado em estação de tratamento de esgoto com duas fases : desaguamento inicial em leito de drenagem seguido de biossecagem
(Universidade Federal de São Carlos, 2017-05-26)
Reis, Renan Felicio dos
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Cordeiro, João Sergio
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https://lattes.cnpq.br/2572864522562875
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https://lattes.cnpq.br/1840510720475585
This present research was conducted by whttps://repositorio.ufscar.br/admin/item?itemID=10496ater removal assays related to dewatering and drying of sewage sludge steps. In relation to the first, it was used Drainage Bed (DB) prototype in lab scale (studies of drainage) and in pilot scale (studies of evaporation). It was used anaerobic sludge from UASB reactor, whose dewatering results about studies of drainage, varying three types of geotextile blanket and height of sludge layer, showed that the HaTe® 55/55 UV blanket brought greater drainage capacity, although the analyses results about drained liquid quality was worse in apparent color, turbidity and conductivity when compared to other blankets experienced. In studies of evaporation in DB it was possible to verify and discuss the relation of climate variables with moisture loss, mainly in relation to precipitation, air relative humidity and temperature. Moreover, due to the turning applied, it was observed that, when is made, higher Total Solids (TS) content is obtained in the sludge sample in shorter time than when the turning is not applied. With regard to the drying step, it was conducted biodrying assays, whose methods e results was separated in abroad and Brazil. In the assays conducted abroad (lasting 14 days) it was used mixed sludge (originated from anaerobic, anoxic and aerobic sewage treatment) and wood chips ( 7,1mm) as bulking agent, in proportion of 2:1 (v/v). The results showed that biodrying process promote the removal of bound water (interstitial, surface and intracellular) from sludge and that the turning applying during the biodrying is fundamental to retake biological activity and, thus, increase the temperature again and obtain final sample with higher TS content. At the end, the reactor which resulted in biodried product with higher TS content (reactor Biossecagem II) reached 63,1% of TS, with High Heating Value (HHV) of 17551,9kJ/kgTS, being superior to many parameters found in literature consulted. About the biodrying assays conducted in Brazil (UFSCar), they lasted 20 days and was performed using anaerobic sludge (UASB) previously dewatered in DB, mixed with wood chips (5-15mm) in 5:4 (v/v) proportion, with turning in 6th, 12th, 15th and 18th days. The results also confirmed the occurrence of biological activity, but did not reached themophilic conditions. To this behavior, it was suggested as reason the use of dewatered sludge in natural system (DB) or anaerobic sludge, both situations still not reported in the literature for biodrying process. In the reactor with the best behavior (reactor Biossecagem B) it was obtained final TS content of 47,4%, with HHV of 14661kJ/kgTS and Low Heating Value (LHV) of 14659,9kJ/kgTS. Furthermore, this thesis reports and compiles data from biodrying assays of sewage sludge found in the literature in a synthesis table, as well as discuss and compare the numerous variables and their implications in the process.
Avaliação da atividade antimicrobiana e análise morfológica por microscopia de força atômica (AFM) da ação de extratos de própolis verde sobre Staphylococcus aureus e Escherichia coli
(Universidade Federal de São Carlos, 2017-05-26)
Campos, Jessica Valéria de
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Assis, Odílio Benedito Garrido de
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https://lattes.cnpq.br/4626267791983725
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Bernardes Filho, Rubens
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https://lattes.cnpq.br/4955439483175452
In the last years the concerns about the resistance acquired by pathogenic microorganisms has increased due to large misuse of antibiotics and agricultural products. Research about new alternatives and natural antimicrobial agents allows, at least, a partial replacement of synthetic drugs. The interest in studying the biological activities of propolis has gained importance due to its great antimicrobial potential, which is attributed to phenolic compounds, especially to the flavonoids. In this sense, the propolis appears as an important therapeutic alternative. The antimicrobial action of this resin has been confirmed in several studies; however, an analysis of the mechanism of action is still scarce. Thus, to identify the presence of antibacterial constituents along with the analyzes by atomic force microscope (AFM), that allows evaluating modifications of the bacterial structures treated with propolis extract, were the main aims of this work. Extracts with different proportions of water and ethanol were prepared and simultaneously processed following standards. The extracts were characterized related to their composition and antibacterial property against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria. It was observed that the use of higher concentrations of ethanol in the extract production provided higher extractions of flavonoids and better antibacterial effects. Thus, the best results were attained by the ethanolic extract of propolis, composed of 100% ethanol (EEP), and conversely, the less efficient extract, composed of lower concentrations of flavonoids, was the aqueous one (EAP). The results obtained in the analyzes in FTIR and HPLC confirm a greater presence of flavonoids in the extracts with higher levels of ethanol. Regarding the microscopic analysis, the EEP was selected for analysis considering its better antibacterial capacity. For a satisfactory inhibition of the E. coli growth a more concentrated extract was necessary, leading to an increase in cell volume, and a probable occurrence of bacteriolysis and the occurrence of cellular damages. In general, the propolis showed to have action on the cellular structure of both bacteria, leading to inhibition of microbial growth.
Investigação das práticas de logística urbana em cidades brasileiras
(Universidade Federal de São Carlos, 2017-05-29)
Dias, José Maria
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Vieira, José Geraldo Vidal
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https://lattes.cnpq.br/2068340476477363
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https://lattes.cnpq.br/3386330240591067
With the growth of urban population and the increase of the vehicle fleet, Brazilian cities face urban dysfunction problems like congestion, environmental pollution, car accidents among others and its consequences are felt by citizens. With the institution of the PNMU - Política Nacional de Mobilidade Urbana (National Urban Mobility Policy), Brazil has sought to direct the planning of solutions for the urban transportation of people and cargo in an integrated and sustainable way The literature shows a lack of national research focused on planning and local policies of urban freight and better understanding of the authorities on the freight transportation and supply chains, for decision-making on policy and planning Urban Freight Transport (UFT). The practices and concepts of City Logistics intend optimal solutions for goods handling issues in urban areas. In this context, the use of City Logistics (CL) practices in Brazilian cities was investigated. Therefore, the contents related to UFT and CL were analyzed in the PlanMobs – Planos de Mobilidade Urbana (Urban Mobility Plans) elaborated by these cities. Additionally was produced a data collection (survey research), with those responsible for the preparation/review of PlanMobs. This research identifies the resources used in the UFT planning, the CL practices adopted and the perceptions of the municipal authorities about the UFT and CL. The results showed that the LU is still neglected and appears not to be the focus of the authorities who have developed the PlanMob. The lack of local authorities’ specific skills, with the low use of planning resources makes it impossible to achieve the LU goals.