Repository logo
Communities & Collections
Entire repository
About
English
العربية
বাংলা
Català
Čeština
Deutsch
Ελληνικά
Español
فارسی
Suomi
Français
Gàidhlig
ગુજરાતી
हिंदी
Magyar
Italiano
Қазақ
Latviešu
മലയാളം
मराठी
Nederlands
ଓଡିଆ
Polski
Português
Português do Brasil
Русский
Srpski (lat)
Српски
Svenska
తెలుగు
தமிழ்
Türkçe
Yкраї́нська
Tiếng Việt
繁体中文
Have you forgotten your password?
  1. Home
  2. Browse by Date

Browsing by Issue Date, starting with "2023-04-15"

Filter results by year or month
Now showing 1 - 20 of 5744
  • Results Per Page
  • Sort Options
  • Loading...
    Thumbnail Image
    Item type:Item,
    O Shopping Center Iguatemi Esplanada no limite das divisas intermunicipais e as consequências na produção do espaço urbano
    (Universidade Federal de São Carlos, 2023-04-15)
    Forti, Marina Machado
    ;
    Silva, Carlos Henrique Costa da
    ;
    https://lattes.cnpq.br/5444248390841543
    ;
    https://orcid.org/0000-0003-2910-6602
    ;
    Lana, Rita de Cássia
    The dissertation regards the impacts from demarcation lines placement in city limits between Sorocaba and Votorantim inside Shopping Center Iguatemi Esplanada mall. Approaches the analysis of mall business as a relevant commerce model, with its characteristics and contribution for structuring of urban networks. The study encompasses brief historical facts around the relationship between Sorocaba and Votorantim and the lawsuit which questioned intercity limits. Concerning the development and production of urban space, it directed towards the impacts of taxes and collection, public management and the expansion of urban sprawl. At the end of the work, it was analyzed the unfolding of the situation of division of the mall business between two cities with the advent of the pandemic caused by COVID-19. For elaboration of this work was done a documental revision, and a bibliography revision of the Geography, promoting interdisciplinarity with areas from Law and Sociology. As a result, it was observed a formalization of the agreement and the existence of split and collaborative management between two cities, recognized by mall business.
  • Loading...
    Thumbnail Image
    Item type:Item,
    A cobertura florestal e o tipo ambiental moldam a diversidade funcional de aves insetívoras dentro da Mata Atlântica do sudeste brasileiro
    (Universidade Federal de São Carlos, 2023-04-17)
    Manzoli, Enzo Coletti
    ;
    Ribeiro, Milton Cezar
    ;
    https://lattes.cnpq.br/4158685235743119
    ;
    https://orcid.org/0000-0002-4312-202X
    ;
    Piratelli, Augusto João
    Arthropod-eating birds are a heterogeneous group, with different levels of environmental sensitivity and diverse responses to habitat degradation. In this paper, we tested the effects of landscape on the functional diversity of insectivorous birds within the Brazilian Atlantic Forest. We predict that (I) species composition and functional diversity are shaped by turnover and nestedness across different habitats, and (II) the gradient of forest cover has a positive effect on bird species composition and functional diversity. We used data from 22 landscapes of the Atlantic Forest in the Cantareira-Mantiqueira region (Brazil), within buffers of 1 km radius, surrogating three types of environments (i.e., forests, pastures, and marshes). The components of β-functional diversity were calculated using the beta pair and beta multi-function for each type of environment, and the effects of the forest cover gradient and environment type were tested using linear models and GLMM, respectively. Our results showed that the forest cover gradient and the type of environment had a negative effect on the indices of functional diversity, contrary to our expectations. Pasturelands and marshes were susceptible to turnover and nestedness, respectively. The beta diversity of forests was influenced by both species nestedness and turnover. The regional native forest fragments are generally small-sized, and in early successional stages, which could explain the patterns we found. The presence of secondary forests may have affected the expected pattern of functional diversity, therefore, caution is needed when interpreting this, since the way in which compensatory dynamics may not involve real functional compensation.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Forma escolar dos aldeamentos jesuíticos do século XVI
    (Universidade Federal de São Carlos, 2023-04-18)
    Melo, Jéssica Cristine de
    ;
    Ferreira Junior, Amarilio
    ;
    https://lattes.cnpq.br/0748545841167046
    ;
    https://lattes.cnpq.br/5707668618318378
    The present research consists of the study of the Jesuit settlements of the 16th century, spaces dedicated to the conversion and education of the Indians. Therefore, the aim is to understand the school form used in these places, where individuals were confined and disciplined to form docile bodies, a concept developed by the author Michel Foucault, in his book Discipline and Punish: The Birth of the Prison. For the understanding of the concept of school form, this investigation resort authors such as Guy Vincent, Bernard Lahire and Daniel Thin, who discuss this concept from a historical approach. This research is based on the qualitative paradigm, because presents a theoretical design substantiated on analysis of Jesuit letters and documents prepared by the Society of Jesus, along with studies by researchers who write about Jesuit education, including historians, anthropologists, education specialists. It can be understood that the school form corresponds to a mode of socialization, which is configured according to some assumptions, such as a specific space, its own pedagogy, in addition to organization through rules and schedules. Thus, the results indicate that the Jesuits, in the referred settlements, considering their customs (rules, schedules, disciplinary pedagogies) and traditions of the catholic faith and European principles, acted in the mission of converting and educating the indigenous people, so that could turn them into catholics and subjects of the king.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Identificação do leito regular de cursos d’água com técnica geobia aplicada a imagens de ultra alta resolução espacial
    (Universidade Federal de São Carlos, 2023-04-18)
    Almeida, Bruna Felix de
    ;
    Melanda, Edson Augusto
    ;
    https://lattes.cnpq.br/1554762456965991
    ;
    https://orcid.org/0000-0002-9298-0637
    ;
    https://lattes.cnpq.br/6372533808357565
    The processes of occupation of the territory by man, in a disorderly way, cause changes in land use that impact the environment and the life of the population. The consequence of these appropriations interferes not only with the landscape, but also with the hydrological cycle of the rivers, due to the permeability of the soil and deforestation around the water courses, directly affecting the availability and quality of this resource. In this sense, laws and regulations were implemented to improve the monitoring of the territory and water resources. In the Brazilian context, the current Forest Code – Law No. 12,651/2012 stands out, which provides for Permanent Preservation Areas (APPs), whose environmental function includes the protection of rivers and also the fauna and flora. According to the aforementioned Law, APPs are delimited based on the width of the edge of the regular river bed. However, the correct delimitation of the edge of the aforementioned gutter is not well defined in the current Forest Code, presenting subjectivity, which compromises the preservation and conservation of these resources. In this sense, there is a global trend in the use of Remote Sensing (RS) for environmental and urban monitoring, highlighting the acquisition by sensors on board Remotely Piloted Aircraft (RPA). Therefore, the classification techniques of these images have also evolved, with emphasis on the Image Analysis Based on Geographical Objects (GEOBIA). Considering these aspects, the objective of this work was to delimit the edge of the regular bed of a stretch of watercourse located in the Monjolinho sub-basin, in the municipality of São Carlos - SP. For that, images obtained with the use of RPA and subsequent application of the GEOBIA technique were used. The research methodology began with a previous analysis of the rainfall seasonality in the municipality, since according to the current Forestry Code, the channel of the regular bed of a river is defined by “the channel through which the waters of the watercourse run regularly during the year”, therefore, it is necessary to visualize the minimum flow of the river, that is, the periods of little rain. Then, the planning of field activities, aerial survey and image processing were carried out, in order to obtain the orthomosaics of the periods of high and low rainfall and later apply GEOBIA, followed by the validation of the results, through the field truth and application of the Kappa Index (IK). As a result of this project, first the orthomosaics were obtained, referring to the aerial surveys carried out in the months of March and September, high and low pluviometry respectively, followed by the elaboration of the maps by manual vectorization, and later application of GEOBIA, this step consisted in the execution of the segmentation, feature extraction, sample collection and finally the classification through the decision tree algorithm. The validation of the results demonstrated a satisfactory classification through GEOBIA with Kappa Index values of 0.6682 and 0.7102 for the periods of high and low rainfall, a fact corroborated by the Accuracy values of 0.8382 and 0.8727 for both periods respectively. The values found indicate that for the period of low rainfall the riverbed was better delimited. Therefore, the results of this research can serve as a basis for public and private agencies, where there is a need to monitor water resources, for the purposes of preserving the APP.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Atitudes implícitas de estereótipos de gênero de mulheres praticantes de rúgbi
    (Universidade Federal de São Carlos, 2023-04-18)
    Tardeli, Lara de Azevedo
    ;
    Picoli, Ricardo Marinho de Mello de
    ;
    https://lattes.cnpq.br/9960736226025843
    ;
    Reis, Maria de Jesus Dutra dos
    ;
    https://lattes.cnpq.br/8868678989340770
    Based on a feminist perspective of Behavior Analysis and on the assumption that sport is na enable of empowerment, this study aimed to investigate whether the practice of rugby by women, being a sport culturally practiced by men, contributes to the reduction of gender bias - compared to practitioners of other sports and non-practitioners of sports - using a measure of implicit attitudes of gender stereotypes. Thirty women participated in the research, divided in three groups: the experimental group, composed by ten women rugby players, and two control groups: one composed by ten women not practicing sports and the other by tem women practicing sports in which female participation is historically considered more accepted. A Sociodemographic Questionnaire was applied, the Athletic Identity Measurement Scale (AIMS) to investigate Athletic Identity, and the Function Acquisition Speed Test (FAST) to access implicit attitudes of gender stereotypes. The results of the FAST were analyzed by comparing the FAST Effect between groups of participants (experimental and control groups). No significant differences were found in the comparison between groups regarding gender bias. The results are discussed and future investigations suggested.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Currículo de matemática na Educação Infantil de um município do interior paulista: compreensão de número e sistema de numeração
    (Universidade Federal de São Carlos, 2023-04-19)
    Torres, Valmir Rogério
    ;
    Calzolari Neto, Anselmo João
    ;
    https://lattes.cnpq.br/4906309581958797
    ;
    https://orcid.org/0000-0002-6703-9079
    ;
    https://lattes.cnpq.br/6155106609363315
    This research presents an analysis of the Curriculum of the Municipal Education Network of Limeira, more specifically the part related to early childhood education. Its purpose is to verify how the contents related to mathematics, numbers and the numbering system are presented in this teaching stage. For this purpose, the conceptions of teaching-learning, student, teacher, curriculum itself and its characteristics were initially analyzed. The analyzes were carried out based on legal documents and Census data, aiming to demonstrate the evolution of early childhood education and its importance for the educational process and for the progress of society. Regarding the functionality of the teaching-learning process, progressive and liberating theories were used, which focus on the development of critical and participatory citizens, relating learning to their social context, based on the theories of Vygotsky, Rogoff and Paulo Freire. In the same way, a vision of curriculum was adopted that does not have the purpose of serving as social control, adopting Apple's propositions. With regard to mathematics, a historical view was adopted and the use of multiple intelligences with contributions from the theories of Smole, Boyer and Mezscach. In methodological terms, scientific research was used to support this work, based on document analysis and Bardin's content analysis technique, which allowed selecting points in the analyzed document that could be discussed to achieve the research objectives. Among the results presented, there was a lack of scientific research on the knowledge of newborn babies and the need to propose educational actions that consider the child's reality and social context.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Efeito da redução de comportamento sedentário associado ao treinamento multicomponente na composição corporal de idosos: ensaio clínico randomizado controlado
    (Universidade Federal de São Carlos, 2023-04-19)
    Lee, Stefany
    ;
    Takahashi, Anielle Cristhine de Medeiros
    ;
    https://lattes.cnpq.br/8336705133403404
    ;
    https://orcid.org/0000-0003-1263-2833
    ;
    https://lattes.cnpq.br/5720440002978457
    Introduction: Body composition changes occur in the aging process leading to an increase in fat mass and a decline in lean mass. Physical exercise can cause changes in body composition, but it is unclear whether reducing sedentary behavior (SB) also produces positive effects. Objective: To assess whether adopting self-management strategies (SMS) associated with a multicomponent training compared to a multicomponent training alone can improve the body composition of older adults who were physically active before the pandemic. Methods: A single-blind, randomized, controlled clinical trial was performed. Forty-five older adults were divided into two groups: Multi and Multi+SMS. The Multi (aerobic, muscular resistance, balance and flexibility) lasted 16 weeks (3x week, 50 minutes/session). The SMS consisted of goals and weekly telephone follow-up calls. Body composition was assessed by dual-energy X-ray absorptiometry (DXA) and the time spent in SB using the ActivPAL3™ accelerometer. A generalized mixed linear model was performed (fixed factors: time, group and interaction and random factor: subjects). Results: Both groups reduced time in SB, increased lean mass index, reduced the fat mass index and fat mass percentage. There was no change in the appendicular lean mass index. Conclusion: SMS to reduce SB did not potentiate the effects of Multi on the body composition of older adults. Offering physical exercise programs to older adults who have similar characteristics to those in our study may be enough to reduce SB and improve their body composition.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Biorreator da 5’-deoxi-5’-metiltioadenosina fosforilase: do desenvolvimento a aplicação em ensaios de afinidade
    (Universidade Federal de São Carlos, 2023-04-19)
    Rodrigues, Juliana Gomes
    ;
    Cass, Quezia Bezerra
    ;
    https://lattes.cnpq.br/9197210255594409
    ;
    https://lattes.cnpq.br/3527738525140248
    5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP) is an enzyme present in many organisms, including the parasite Schistosoma mansoni, which causes schistosomiasis. The classic MTAP enzymatic assay is coupled to the reaction of another enzyme and indirectly measures adenine formation. The main disadvantage of these coupled assays is that any interference in the activity of the second enzyme directly affects the activity of the main enzyme. Therefore, an LC-UV chromatographic method was developed and validated to directly monitor the catalytic activity of MTAP in the conversion of adenosine substrate into adenine. The enzyme was covalently linked to the surface of magnetic particles, to obtain a bioreactor that was applied in the screening of molecules in extracts of natural products, through the affinity selection mass spectrometry technique. For this purpose, the test known as ligand fishing was developed and applied to prospect for ligands in methanolic extracts of the marine sponge Topsentia ophiraphidites and the stem bark of Aspidosperma macrocarpon. Among the Feature-Based Molecular Networking, the MZmine software was used for the processing and interpretation of the fingerprint chromatograms obtained by LC-HRMS of the assay. Subsequently, the Ichthus software was used to align the molecular characteristics, calculate the affinity ratio and thus distinguish the selective ligands for the enzyme. The binders were inspected manually through analyzes in the chemical profile of the extracts of natural products and in the blank sample, to discard the artifacts. After selection, the ligands were submitted to the dereplication process with the support of platforms such as GNPS and databases such as Dictionary of Natural Products, KNApSAcK Core System, MassBank, PubChem, SciFinder, LIPID MAPS and HMDB.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Visitação carcerária e sua manifestação em municípios turísticos: o caso em São Vicente (SP)
    (Universidade Federal de São Carlos, 2023-04-19)
    Farias, João Paulo Bloch
    ;
    Silva, Carlos Henrique Costa
    ;
    https://lattes.cnpq.br/5444248390841543
    ;
    https://orcid.org/0000-0003-2910-6602
    ;
    https://lattes.cnpq.br/7565122228040383
    En las ciudades donde están ubicadas las unidades penales de São Paulo, es posible identificar la dinámica espacial que se presenta cuando llegan los familiares de los presos. Lo que llamamos turismo socio-familiar penal, corresponde al desplazamiento de visitantes con el propósito de visitar a sus familiares condenados. La intención de esta investigación a nivel de maestría pretende analizar geográficamente cómo ocurren las visitas presenciales en las unidades penales de São Vicente/SP e identificar los detalles de este fenómeno en un municipio preparado para el turismo, donde también alberga un sistema penitenciario. Para responder a los objetivos en mente, el método utilizado para obtener los datos fue investigación bibliográfica, combinada con análisis documental, realizado a través de material puesto a disposición por organismos públicos, específicamente el gobierno del estado. Además de la técnica netnográfica en un grupo de visitantes en Facebook. Posteriormente, con la flexibilización del virus COVID-19, fue posible realizar la observación directa y la aplicación de 16 cuestionarios en la puerta de la unidad penal en los momentos previos al ingreso de los familiares. La ocurrencia del turismo socio-familiar penal puede ser abarcada por la geografía, pues esta ciencia posee metodologías que permiten la lectura del espacio, de la movilidad espacial y de los sujetos que contribuyen a cambiar los territorios. Se encontró en la teoría de los dos circuitos de la economía urbana, en especial el circuito inferior, una forma de entender la realidad penal, por lo que en cuanto a los resultados obtenidos se muestran datos inéditos que describen cómo se comportó el fenómeno durante la pandemia del COVID-19 y las reproducciones espaciales en los alrededores de la unidad que ocurrieron principalmente los fines de semana. Concluimos que existen prestadores de servicios en los alrededores del complejo penal, que encuentran oportunidades en este flujo y así, ofrecen servicios como: venta de alimentos y ropas exclusivas (jumbo). Observamos también el desinterés de los visitantes, compuestos en su mayoría por mujeres, en no buscar y/o participar de actividades de ocio en el local, aún estando en un destino turístico.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Eletrodeposição de ligas de Ni-W sobre aço carbono: caracterização dos filmes
    (Universidade Federal de São Carlos, 2023-04-19)
    Zacarin, Maria Gabriela
    ;
    Carlos, Ivani Aparecida
    ;
    https://lattes.cnpq.br/1666217445807782
    ;
    https://orcid.org/0000-0003-4878-9381
    ;
    https://lattes.cnpq.br/6122251297187148
    The electrodeposition of Ni-W alloy on steel substrate from acid and alkaline solution containing NTA as a complexing agent for Ni2+ and WO4 2- ions was initially studied. EDX analyzes of the galvanostatically produced films found that from the complex formed between Ni-NTA there was no unloading of Ni2+ ions and, therefore, there was no alloy formation. Therefore, studies of the Ni-W alloy were conducted in acidic and alkaline ion solutions in the presence of aspartic acid, which complexes the Ni2+ ions, and also from the acid solution containing the boric acid-sorbitol complex from which the Ni2+ remains free in solution. The complexation of Ni2+ ions with aspartic acid shown in the species distribution diagram was evidenced by the results obtained in the UV-Vis and in the potentiometric titration. The voltammetric analyzes of the tested solutions observed that the increase in the nickel concentration in the deposition bath, pH variation and variation in the composition of the deposition bath did not influence the control of the reduction process of the Ni-W alloy. SEM analysis of the Ni-W electrodeposits produced with qd = 40.00 C cm-2 showed that the films were smooth, cracked or had globular crystallites depending on the composition of the bath and the deposition current density (jd) studied. EDX analyzes of the Ni-W electrodeposits found that the W content varied with the jd studied and with the composition of the deposition bath. The XRD analyzes indicated, in general, that the solid solution of W in Ni was designed independently of the deposition bath and the jd, and also through XRD analysis, the calculated grain size showed that the W content presented in the films evolved in different grain sizes. The testicles of adhesion of the films visited that, for the most part, the Ni-W films had good adhesion to the steel substrate. Open circuit potential (Eca) studies as well as polarization studies have found that Ni-W films protect steel from corrosion
  • Loading...
    Thumbnail Image
    Item type:Item,
    Impactos macroeconômicos sobre a formação de bolhas especulativas no mercado agropecuário brasileiro
    (Universidade Federal de São Carlos, 2023-04-20)
    Cabrine, Carlos Guilherme das Neves
    ;
    Silva Júnior, Geraldo Edmundo
    ;
    https://lattes.cnpq.br/5138808982229139
    ;
    Cruz Júnior, José César
    ;
    https://lattes.cnpq.br/0086426315229286
    The volatility in commodity prices has direct implications for the financial results of companies and consumers. Not infrequently, such variations occur in a sharp way, and in non-compliance with market fundamentals, that is, in a speculative way. When this occurs, the effects on agents' expectations are even greater, as it negatively affects the price discovery and hedging processes. The main objective of the work is to identify the occurrence of speculative bubbles in the prices of selected commodities, also trying to determine the reason for the existence of such movements. For this, we used daily price series of the three most liquid commodities (feeder cattle, corn, coffee) traded on the Brazilian commodities and futures exchange market, B³, as well as macroeconomic variables (interest rate, exchange rate, economic activity index, money supply as a percentage of the GDP, stock index Bovespa, brazilian consumer price index), for the period between 2013 and 2021. The Generalized Supreme Augmented Dickey-Fuller (GSADF) and Backward Supreme Augmented Dickey-Fuller (BSADF) tests were used to detect and datestamp the explosive periods in prices, and the Poisson regression model for inspection and understanding of the determining macroeconomic factors in the formation of bubbles. As a result, slightly explosive processes were found in all commodities for the analyzed period, although infrequent. Concerning the macroeconomic effects, money supply, stock index and inflation had a positive impact on the emergence of bubbles, while interest rates and economic growth had negative effects.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Bayesian estimation of dynamic mixture models by wavelets
    (Universidade Federal de São Carlos, 2023-04-20)
    Motta, Flávia Castro
    ;
    Montoril, Michel Helcias
    ;
    https://lattes.cnpq.br/9993502064983663
    ;
    https://lattes.cnpq.br/8392595039676608
    Gaussian mixture models are used successfully in various statistical learning applications. The good results provided by these models encourage several generalizations of them. Among possible adaptations, one can assume a dynamic behavior for the mixture weights to make the model more adaptive to different data sets. When estimating this dynamic behavior, wavelet bases have emerged as an alternative. However, in the existing literature, the wavelet-based methods only estimate the dynamic mixing probabilities, failing to provide estimates for the component parameters of the mixture model. In this work, we propose two approaches based on orthonormal wavelets to estimate the dynamic mixture weights under efficient MCMC algorithms that allows us to estimate the component parameters from their posterior samples. We use simulated and real data sets to illustrate both approaches' performances. The results indicate that the proposed methods are promising and computationally efficient alternatives for estimating jointly the dynamic weights and the component parameter of two Gaussian mixtures.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Gestão da informação e do conhecimento em núcleo de Economia Solidária
    (Universidade Federal de São Carlos, 2023-04-20)
    Pereira, Vinicius
    ;
    Silva, Sergio Luis da
    ;
    https://lattes.cnpq.br/4164265591178698
    ;
    Furnival, Ariadne Chloe Mary
    ;
    https://lattes.cnpq.br/1291482506649810
    Solidarity Economy presents a new collective way of production and consumption through property and work reorganization, disrupting economic, social and cultural paradigms, aiming for better social welfare and sustainable development. In this context, solidarity economy incubators support these initiatives through actions such as consultancies and interventions, fomenting social innovation through knowledge use. In Information Science, such organizations are still under-explored, especially regarding how they manage their knowledge and information, and how the literature relates to their particular context. Therefore, this research aims to analyze the Information and Knowledge Management (KIM) of the Integrated Multidisciplinary Nucleus of Studies, Formation and Intervention in Solidarity Economy (NUMI-EcoSol) of the Universidade Federal de São Carlos (UFSCar) as a case study, which included direct observation, document analysis and semi-structured interviews. Results point toward a knowledge intensive KIM of emergent nature, in a multidisciplinary and dialogical environment, where the incubation method presents characteristics of a non-structured competitive intelligence. Decision making is processual and dialogical, where decision-making spaces are the main knowledge transfer opportunity, with descriptive meeting minutes as an information tool. The presence of self-management impacts the Nucleus’ information policy and culture, and also its information flow, distinguishing itself from other social organizations by including decentralized practices and information autonomy on an individual and collective level. The nucleus creates social innovations mainly through projects and knowledge networks, where knowledge coordination and use of organizational memory are fundamental for its success. Challenges are faced, such as: knowledge loss, caused by the staff turnover and loss of gatekeepers; the management of a self-managed repository, in terms of structure and its consequent impact on information and knowledge retrieval; and time management on decision-making spaces, negatively affecting knowledge sharing and leading to knowledge under-use. We indicate minor incremental innovations such as expanding the use of ICT, increasing the number of communication channels; using a method like Kanban for email circulation; and possibilities for a structured competitive intelligence (or a new cooperative intelligence). Complementing the analysis, a metadata header prototype to be used in the Nucleus documents is presented, along with its immediate and long term benefits. Lastly, research suggestions are made to go beyond this case study, expanding on more general questions discussed in this research findings, such as the potential for interorganizational KIM and the epistemological matters involving information and knowledge in solidarity economy networks.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Avaliação das concentrações séricas de vitamina D em pacientes internados por COVID-19: prevalência de hipovitaminose e fatores associados
    (Universidade Federal de São Carlos, 2023-04-23)
    Neves, Fabio Fernandes
    ;
    https://lattes.cnpq.br/2652568399519714
    ;
    https://orcid.org/0000-0001-6536-3249
  • Loading...
    Thumbnail Image
    Item type:Item,
    Parametrização de ligantes em reações catalisadas por metais de transição
    (Universidade Federal de São Carlos, 2023-04-24)
    Barboza, Amanda Aline
    ;
    Ferreira, Marco Antonio Barbosa
    ;
    https://lattes.cnpq.br/6874055640224407
    ;
    https://lattes.cnpq.br/4255739684342248
    ;
    https://orcid.org/0000-0001-5606-911X
    The approach of statistical methods capable of accurately predicting the relationship between catalyst structure and reactivity represents a major impact on reaction development, since both reactivity and selectivity of the catalyst employed in organic reactions are directly related to its structural aspects. In the case of transition metal catalysis, this parameterization provides quick information and relevant estimates about the structure and respective activity of new ligands that are briefly identified in structural descriptors that influence the desired activity. Here we list key results obtained in the development and use of ligand parameterization to guide, predict and explain the discovery and development of new catalysts and methodologies. In the context of nucleopalladation reactions, we highlight Wacker-type reactions that employ carbonylation reactions of double bonds not activated by CO capture in a palladium-catalyzed process. We present a new methodology to obtain pyrazoline ester derivatives tolerant to different substitutions at strategic positions in the starting material as demonstrated by the scope study. By statistical studies, it was possible to observe that the molecular softness (ƞ) of the pyridine has a direct relationship with the yield - except for the bulkiest pyridines. For monophosphine ligands, the reactivity threshold analysis revealed that bulkier ligands are associated with the worst results. When bisphosphines are involved, the angle between the phosphorus substituents in the complex with PdCl2 indicates an important role, which can be interpreted in terms of flexibility of the ligand. In summary, the parameterization analysis of phosphine ligands and pyridine bases in general revealed dominant influences of steric effects that may imply the formation of bis-ligated palladium species and a detrimental role of pyridine coordination in active catalysts. In sequence, we report our efforts to integrate data science and computational chemistry tools to guide, predict, and explain synthetic catalyst development in the context of ruthenium-catalyzed crossmetathesis in the synthesis of trisubstituted olefins. To investigate the reactivity of substrate versus catalysts, we performed reactions with 3 methylenecyclohexane derivatives (challenging substrates), cis-1,4-diacetoxy-2-butene and 28 Ru-based catalysts. These experimental results were integrated with molecular steric and electronic descriptors obtained for the Ru complexes to parameterize the catalyst structure in relation to the reaction yield. Our results indicate that although the overall structure of ruthenium-based olefin metathesis precatalysts is highly modular, the use of carbenes as one of the neutral ligands has the greatest impact on the performance of these reactions. The variation in the substitution pattern of the aromatic ring bonded to the NHC nitrogens comprises the greatest variability in results for the challenging substrates, still, no clear correlation could be observed. However, through catalyst parameterization we found correlations and univariate and multivariate models to predict the outcome of new structures to broaden the scope of the catalyst used in these important reactions.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Pesquisar COM como potência de aprendizagem social: uma experiência nas ciências ambientais junto a uma escola do campo
    (Universidade Federal de São Carlos, 2023-04-24)
    Oliveira, Maria Paula Pires de
    ;
    Figueiredo, Rodolfo Antônio de
    ;
    Valdanha Neto, Diógenes
    ;
    https://lattes.cnpq.br/9925430852423901
    ;
    https://lattes.cnpq.br/0854609216769461
    O objetivo deste artigo é apresentar uma pesquisa-intervenção realizada no campo das ciências ambientais junto a uma escola do campo e analisar a possibilidade desse pesquisar COM como potência de aprendizagem social. A escola situa-se no Território Portal da Amazônia (norte de Mato Grosso) e a intervenção visou à definição, validação, aplicação e análise de indicadores estabelecidos para compreender o papel de práticas escolares na resiliência socioecológica de comunidades rurais, assim como uma análise conjunta dos resultados e do processo participativo. Foram realizados encontros dialogados e dinâmicas com a comunidade escolar para se alcançar os objetivos pretendidos. Para além dos resultados dos indicadores em si, uma análise do próprio processo evidenciou que este constituiu um exercício de aprendizagem social, o qual possibilitou o desenvolvimento de diferentes habilidades e valores.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Vamos pedir um delivery? Meio técnico-científico-informacional e a precarização do trabalho dos entregadores de plataforma na cidade de Sorocaba
    (Universidade Federal de São Carlos, 2023-04-24)
    Benegas, Diego Morais
    ;
    Tozi, Fabio
    ;
    https://lattes.cnpq.br/1239744709191702
    ;
    https://orcid.org/0000-0003-1448-8353
    ;
    Silva, Carlos Henrique Costa da
    Esta disertación se centrará en tratar de comprender cómo el concepto de entorno tecno-científico-informativo y el surgimiento de la Industria 4.0 están relacionados con la precariedad del trabajo de los repartidores de plataformas de entrega en Sorocaba. Para llevar a cabo la investigación se seleccionaron repartidores que conforman una categoría denominada shopper, la cual conforma una categoría diferenciada de repartidores de alimentos, caracterizados por seleccionar productos de los anaqueles de los supermercados, pagar los artículos y luego entregarlos. Las entrevistas permitieron comprender cómo el proceso de globalización es fundamental para que las plataformas de delivery utilicen el territorio para generar valor. En ese sentido, la lectura de Ludmila Costhek Abilio del trabajo de plataforma que relaciona la informalidad, el trabajo a pedido y los mecanismos de control en línea con la teoría del valor desarrollada por Ricardo Antunes fue fundamental para esclarecer la precariedad del trabajo de los repartidores de plataforma en Sorocaba. El aporte teórico de estos pensadores permitió comprender cómo se manifiesta la expansión del sector servicios en el territorio, además de constituir una nueva etapa en el concepto de entorno técnico-científico-informativo idealizado por el geógrafo Milton Santos.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Micropropagação de Melaleuca alternifolia: efeitos de 6-benzylaminopurine e do comprimento de onda fornecidos por diodos emissores de luz
    (Universidade Federal de São Carlos, 2023-04-25)
    Gonzales Alvarado, Antony Cristhian
    ;
    Cardoso, Jean Carlos
    ;
    https://lattes.cnpq.br/3681181863704059
    ;
    https://orcid.org/0000-0001-6578-1723
    ;
    https://lattes.cnpq.br/6882343609565005
    Melaleuca alternifolia, or tea tree, is a species used in the pharmaceutical and cosmetic industries due to its essential oils containing antibacterial, antifungal, antiviral, anti-inflammatory, and analgesic properties. In vitro cultivation of Melaleuca can contribute to the clonal production of seedlings from superior genotypes, increasing the biomass and oil productivity in this crop. However, the development of methods and studies on factors affecting the micropropagation of the species, such as plant growth regulators, and the integration of new technologies, such as the use of light-emitting diodes (LEDs), is necessary to improve the efficiency of in vitro cultivation. The objective of this study was to test different wavelengths provided by LEDs and the presence of the cytokinin N6-Benzylaminopurine (BAP) (0.0 and 0.25 mg L-1) on the in vitro multiplication and development of Melaleuca seedlings. Nodal segments were inoculated on Murashige & Skoog culture medium with half-strength macronutrients (MS ½). The test tubes containing individual nodal segments were cultured under different wavelengths provided by LEDs: White, Blue, Red, Red and White, Red and Blue, and dark conditions. Measurements of seedling development were taken, as well as chlorophyll quantification using spectrophotometry. Analysis of nutrient absorption (Ca, Mg, and P) from the culture medium was also performed in the different treatments. The statistical design was a 2 x 6 factorial, and the variables analyzed were plant height, number of shoots, number of roots, chlorophyll A, chlorophyll B, Total Chlorophyll, and nutrient absorption (Ca, Mg, and P) from the culture medium. The main results obtained showed a significant increase in the number of shoots and fresh and dry weight, reduction in shoot height, inhibition of rooting rate, significant decrease in chlorophyll content, and nutrient absorption, such as phosphorus, in in vitro plants with the presence of 0.25 mg L-1 BAP.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Perspectivas das relações de gênero durante a pandemia de COVID-19 por jovens da escola pública
    (Universidade Federal de São Carlos, 2023-04-25)
    Braz, Leonardo Graco Oliveira
    ;
    Borba, Patrícia Leme de Oliveira
    ;
    https://lattes.cnpq.br/4193205735379897
    ;
    https://orcid.org/0000-0002-2286-2758
    ;
    https://lattes.cnpq.br/6358005278159296
    This master's thesis discusses the expressions of hegemonic masculinity in the daily life of young high school students during the COVID-19 pandemic, such as the different manifestations of sexism in questions related to changes in daily life caused by physical distancing and home isolation. The hegemonic masculinity category is adopted to analyze the process of reformulating everyday life, reducing social participation and producing gender inequalities that groups of young boys and girls reported experiencing during the pandemic period. The methodology considered the elaboration, conduction and critical analysis of workshops and focus groups carried out with young high school students. All of this material was transcribed and analyzed based on theoretical references from social occupational therapy and gender studies. Among the considerations reached in this research, the recognition by the perspective of young people of inequality between genders, already existing before the pandemic, but aggravated in this period, leading to a limitation of social participation of girls and an overload of responsibilities associated with the household and the care necessary to prevent COVID on them. Another noteworthy aspect is in relation to the outlining of the contributions that social occupational therapists can offer in the field correlated with youth and school in the sense of creating and implementing intervention strategies capable of problematizing and building critical and reflective readings on the different expressions of masculinities, about sexism and the feminist struggles undertaken to equalize the differences between the genders. Therefore, we sought to understand the ways in which the social construction of the concept of masculinity is expressed and impacted on the daily lives of young people during the COVID-19 pandemic, as well as to develop strategies for problematizing the theme of masculinity and gender inequalities, aiming to provoke the elaboration of new conceptions of masculinity based on gender equity, using notions belonging to social occupational therapy, addressing issues related to gender inequalities and the production of care practices and with a view to promoting social justice.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Transcriar a imagem poética em Margem de manobra, de Claudia Roquette-Pinto
    (Universidade Federal de São Carlos, 2023-04-25)
    Martínez, Valentina Antonieta Figuera
    ;
    Martha, Diana Junkes Bueno
    ;
    https://lattes.cnpq.br/1857520068239671
    ;
    https://orcid.org/0000-0002-5465-8030
    ;
    https://lattes.cnpq.br/1952195668824547
    El propósito de la presente investigación es traducir, del portugués al español, una selección de poemas del libro Margem de manobra (2005), de Claudia Roquette-Pinto, así como estudiar críticamente, a partir del ejercicio de traducción, la configuración de la imagen poética como procedimiento formal predominante en la obra. Partiendo de las contribuciones sobre transcreación de Haroldo de Campos – para quien el acto traductor es un ejercicio teórico y crítico –, se comprende que la traducción es el más íntimo acto de lectura y permite que el trabajo de análisis crítico gane rigor. En el ámbito de la traducción, se discuten las imágenes poéticas – procedimiento literario que resultó en la constante figuración indeterminada y metafórica del cuerpo como instrumento de dominio del mundo asociado a elementos de la naturaleza. Para el análisis crítico de la imagen, se incluyen las contribuciones de Michel Collot y de Maurice Merleau-Ponty acerca del pensamiento-paisaje y el cuerpo como fuente de conocimiento y de la dimensión activa, respectivamente. En diálogo con Merleau-Ponty, las consideraciones de Simone de Beauvoir contribuyeron con la discusión fenomenológica del impacto diferenciado a la subjetividad y cuerpo-ser femeninos. Como complemento a la transcreación, se discuten los trabajos de Walter Benjamin, Jacques Derrida y Roman Jakobson, teóricos con los cuales dialoga Haroldo.
  • «
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • ...
  • 288
  • »
Siga as redes sociais do SIBi
Contato

Repositório Institucional da UFSCar (RI UFSCar)

Av. Biblioteca Comunitária, Campus São Carlos

Rod. Washington Luís, km 235 - SP-310

São Carlos, SP, 13565-905 (16) 3351-8477

Email: repositorio@ufscar.br

Acessos ao repositorio.ufscar.br
Consultar estatísticas de acesso

DSpace software copyright © 2002-2026 LYRASIS

  • Accessibility settings
  • Privacy policy
  • End User Agreement