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Análise da inserção urbana de um empreendimento de habitação de interesse social: o estudo de caso do residencial Carandá em Sorocaba – SP
(Universidade Federal de São Carlos, 2022-03-11)
Ferrari, Telma Ferreira Brisola
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Santos, André Cordeiro Alves dos
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https://lattes.cnpq.br/2131880667704281
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https://lattes.cnpq.br/6738732236701571
The reproduction of the urban space reflects the performance of multiple actors with different interests; most of the time, the economic nature stands out to the detriment of the social-environmental. In Brazil, one of the urbanization problems is related to its segregating nature, implying the unequal access of diverse social extracts to the cities, their services, and urban equipment; it also reflects on the housing deficit rates. In 2009, to catch up with this demand, the Federal Program, Programa Federal Minha Casa Minha Vida (PMCMV), was implemented. One of its modalities constituted popular housing production through financial subsidies and the performance of construction companies. However, if, on the one hand, the PMCMV generated staggering numbers of houses, on the other hand, the market logic overlaps the idea of housing politics, and it was not able to transform the inequalities arising from the exclusionary urbanization. As a result, great housing came true outlying the city's fringes, where land is cheaper, there are no markets nor services, and urban mobility is harmed. In Sorocaba – SP, the Jardim Carandá residential area is shown as an example of everything said, considering that for its viability, it was necessary to enlarge many urban services, representing a high social cost for the city not necessarily supplying the residents' demands. In this scenery, the analysis of Carandá Urban Insertion, which considers attributes such as its localization, access to urban infrastructure, and urban fluidity, is shown as an asset to illustrate the issues previously commented on and demonstrate that constructing houses means constructing cities. It also makes us reflect on the role of housing politics and land management, represented by the Directing Plans, in reproducing the urban spread. Finally, it invites us to rethink what kind of cities we are building for the next generations by reproducing an urbanization model that is already showing itself to be unsustainable.
Eco inovação em materiais poliméricos: direcionadores e barreiras de pesquisas voltadas à eco inovação no Departamento de Engenharia de Materiais da Universidade Federal de São Carlos
(Universidade Federal de São Carlos, 2022-03-11)
Augusto, Edna Hercules
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Fonseca, Sérgio Azevedo
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https://lattes.cnpq.br/2879240108726907
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https://lattes.cnpq.br/7786329116376734
Due to changes in contemporary capitalism, organizations are being forced to realize that for economic development to continue, they must seek innovations that maintain a balance with sustainability. Eco-innovations (EI) are inserted in this context, to the extent that they represent new products, processes, marketing techniques, or system-wide changes, whether disruptive or incremental, but always aimed at improving environmental performance. They are important for changing the current linear economic model, whose relationship with nature consists of extracting, producing, and disposing, to a circular economy model that intends to reconcile capital accumulation and environmental conservation. In this scenario, it is relevant to reflect on how the university is inserted into this EI system, since the knowledge produced therein places it in a role as a propeller of sustainable development. The understanding of drivers and barriers to EI(s) from the perspective of researchers at a Brazilian federal university can improve the management of innovation in the institution and its relationship with society. Thus, this dissertation aims to bring an analytical model of drivers and barriers to eco-innovations from the perspective of the university compared to that of companies whose vision was captured through systematic literature reviews (RBS) on eco innovation and key drivers and barriers, the state of the art has shown that this is a very incipient theme, with very few articles that bring the perspective of the university, This is a unique case study, but relevant because drivers and barriers of eco innovation activities are identified between 01/01/2010 and 01/12/2020, from the perception of researchers in polymeric materials of the Materials Engineering Department (DEMa) of the Federal University of São Carlos (UFSCar). This research has a qualitative nature and a descriptive and exploratory purpose, using content analysis techniques to codify and analyze data collected from documents and semi-structured interviews, helping the understanding of drivers and barriers to EI(s) from the perspective of researchers at a federal university, which can improve the management of innovation in the institution and its relationship with society
Ações de enfermagem preventivas de respostas adversas a meio de contraste iodado: uma revisão sistemática
(Universidade Federal de São Carlos, 2022-03-11)
Augusto, Renata Aparecida dos Reis Presses
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Eduardo, Aline Helena Appoloni
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https://lattes.cnpq.br/9804415222026713
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https://lattes.cnpq.br/9541640702219383
The objective of this review was to identify evidence available in the literature on actions of preventive nursing of adverse responses to iodinated contrast media. the question of research for this study was as follows: “What is the effectiveness of preventive nursing actions of adverse reactions developed by patients who will receive iodinated contrast? ”. Method: systematic review based on the recommendations of the Joanna Briggs Institute, the databases consulted were National Library of Medicine and National Institute of Health – PUBMED, Scopus, Cumulative Index to Nursing and Allied Health Literature - CINAHL, Latin American and Caribbean Literature in Health Sciences – LILACS and Scielo. The words keys employed were: contrast media; prevention; nursing care. The criteria study eligibility criteria were primary studies that presented preventive measures with results attributed to the prevention of adverse response to the contrast medium they used methods with the proposal of this review. The identified articles had titles and abstracts analyzed by two different reviewers, who applied the eligibility criteria and selected the articles for full reading. Afterwards, the removal of articles that have not yet met the criteria and the duplicates were analyzed using the software Summarize. Results: From the analysis of the selected articles, the actions of nursing aimed at preventing adverse reactions to iodinated contrast media. At they were grouped into 03 categories, as follows: Assessment of the risk of adverse reactions to the contrast medium, Non-pharmacological measures for the prevention of adverse reactions to the environment of contrast and Specific care with pharmacological measures to prevent reactions adverse to the contrast medium. Conclusion: The evidence from this systematic review resulted in in the organization of nursing actions aimed at preventing adverse responses in the midst of iodinated contrast, in consultations in the various areas of diagnostic support and interventions performed in radiology.
Proposta da utilização de uma fibra de núcleo oco anti-ressonante para detecção simultânea de metano, monóxido de carbono e monóxido de nitrogênio
(Universidade Federal de São Carlos, 2022-03-11)
Silva, Artur de Araujo
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Francisco, Carlos Alberto de
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https://lattes.cnpq.br/1246572405382250
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Barea, Luis Alberto Mijam
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https://lattes.cnpq.br/7929868663210908
Hollow-Core Anti-Resonant Optical Fibers (AR-HCF) is a novel hollow-core fiber with a low refractive index in the core and a high refractive index in the cladding. Unlike conventional solid-core optical fibers, where light confinement occurs by total internal reflection, in hollow-core fibers, this confinement can be explained by photonic bandgap mechanisms and by the theory of leaky modes. This work describes the simulations of AR-HCF using the finite element method (FEM), aiming its application in optical sensing. We performed numerical simulations using COMSOL Multiphysics software to study the propagation characteristics of AR-HCF. Also, we made simulation-related analyses, such as boundary conditions, size of mesh elements suitable to be used, and methods to reduce computational effort. Furthermore, this work demonstrates the potential application of AR-HCF as efficient sensors for the simultaneous detection of three gases: methane (CH4), carbon monoxide (CO), and nitrogen monoxide (NO). We investigated two fibers, one made of silicon oxide (SiO2) and indium(III) fluoride (InF3), to demonstrate the impact of the fiber material on performance over a wide wavelength range. We also considered in simulations the insertion of small holes perpendicular to the fiber length to enable the gas entry in the fiber's hollow core. The simulation results show that the designed fibers present low losses in the wavelengths of the absorption lines of the three gases. The highest attenuation value obtained in the simulations was 5.76dB/m for the SiO2 fiber and 0.06dB/m for the InF3 fiber, for λ = 5262.95 nm. Also, a linear behavior of the attenuation as a function of the gas concentration for the three gases of interest in the two designed fibers was obtained in the simulations. The sensitivity obtained by the sensor using an InF3 fiber with a length of 10 meters was 3.8x10^-2 (mV/ppm), 31x10^-2 (mV/ppm) and 11x10^-2 (mV/ppm) for the gases CH4, CO and NO, respectively. For the sensor using a SiO2 fiber with a length of 5 meters, the sensitivity estimated in this work was 1.9x10^-2 (mV/ppm), 15x10^-2 (mV/ppm) and 5.5x10^-2 (mV/ppm) for the gases CH4, CO and NO, respectively. In terms of the detection limits, the fiber made of InF3 material is capable of detecting concentrations of 13.2 to 86271 (ppm) of CH4, 1.6 to 10473 (ppm) of CO and 4.5 to 29340 (ppm) NO. The limits of detection for the fiber constituted of SiO2 were 26.5 to 163990 (ppm) of CH4, 3.2 to 20175 (ppm) of CO and 9.1 to 33034 (ppm) of NO.
Modelagem matemática, serviços ecossistêmicos e análise da paisagem como ferramentas no manejo de reservatórios inseridos em áreas antropizadas
(Universidade Federal de São Carlos, 2022-03-11)
Silva, Fabio Leandro da
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Fushita, Ângela Terumi
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https://lattes.cnpq.br/1078644223231926
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Santino, Marcela Bianchessi da Cunha
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https://lattes.cnpq.br/2356641063223397
In the last decade, a water crisis has been experienced that has negatively impacted several economic sectors and caused adverse effects that interfere with the maintenance of aquatic systems. Reservoirs are artificial systems that play an important role in the electricity generation and water storage, but many socio-environmental impacts are observed during their construction and those systems have been impacted by anthropogenic activities. Therefore, there is a need to use approaches that enable the evaluation of these systems, as well as the establishment of management strategies. For that, we used: (i) a zero-dimensional model to verify the mass balance of limnological variables; (ii) quality management tools for analyzing limnological data; (iii) landscape analysis and use of a landscape structure indicator; and (iv) a qualitative approach to the assessment of ecosystem services. Upstream and downstream points of the Barra Bonita (RBB), Salto Grande (RSG), Itupararanga (RI) and Jaguari-Jacareí (RJJ) reservoirs were evaluated, considering the rainy (January, March, November) and dry seasons (May, July, September). Data from the ‘Companhia Ambiental do Estado de São Paulo’ (CETESB) were used for the following variables: electrical conductivity (EC), thermotolerant coliforms (FC), biological oxygen demand (BOD5,20), dissolved oxygen (DO), total chloride (CHL), ammonia nitrogen (NH4), nitrate (NO3), nitrite (NO2), pH, turbidity (TURB), total phosphorus (TP), and total solids (ST). In RBB, upstream stations of the Tietê and Piracicaba rivers were evaluated, as well as a downstream station in the Tietê river. Considering the RSG, an upstream and downstream station on the Atibaia river was evaluated. In the case of the RI, three upstream stations (Una, Sorocabuçu and Sorocamirim rivers) and other downstream, close to the dam, were evaluated. Concerning RJJ, two stations were verified in the Jaguari river: one upstream and the other downstream. In terms of mathematical modeling, RBB demonstrated a good capacity to retain limnological variables, especially those related to the sedimentation process. Considering the guiding values of CONAMA Resolution 357/05 and CETESB, it was found that BBR, SGR and RI had the highest number of non-conformities. EC, FC, BOD5,20, DO and TP are responsible for most non-conformities. In relation to the land cover of the Piracicaba-Capivari-Jundiaí and Sorocaba-Médio Tietê Water Resources Management Units between 2010 and 2020, the predominance of anthropogenic uses (agricultural and urbanized areas) is evident, which occupy more 60% of the territory, despite the native vegetation recovery. The Distance to Nature (D2N) showed the predominance of urbanized/intensively cultivated landscapes (> 60%), as well as areas that were unchanged and changed in natural or artificial direction. As for ecosystem services, it was shown that changes in limnological variables affect the maintenance of biodiversity and directly impact the provision of ecosystem services. It is recommended the implementation of strategies that contribute to the improvement of the environmental quality of the study area and water bodies, the approach was useful for the evaluation of these ecosystems and contributes to the decision making.
Lulu no Brasil: a recepção de Louise Brooks no Brasil e o imaginário estético-social da Primeira República
(Universidade Federal de São Carlos, 2022-03-11)
Santos, Tamara Carla dos
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Souza, Carlos Roberto Rodrigues de
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https://lattes.cnpq.br/0875456244182952
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https://lattes.cnpq.br/9495737279829496
Although the American actress Louise Brooks (1906-1985) is known for the roles she played in films in Germany – especially Pandora’s Box (G. W. Pabst, 1929) –, in the second half of the 1920s (1926-1930) her name was very present in the Brazilian press as a rising star. Her films produced in Hollywood and Beauty Prize (Augusto Genina, 1930), produced in France, toured the exhibition circuit of Brazilian theaters – mainly in the cities of Rio de Janeiro and São Paulo, where cinema was more present in the collective imaginary. The objective of the research is to analyze the discourse published in the Brazilian press about “modern women” and about the actress Louise Brooks and to identify the dialogues between her characters and the female spectators of Brazil during the First Republic.
A internet da natureza na gestão municipal: panorama e desenvolvimento de uma aplicação
(Universidade Federal de São Carlos, 2022-03-11)
Paula Santos, Maria Inês Corrêa de
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Thiersch, Cláudio Roberto
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https://lattes.cnpq.br/8791966697254106
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https://lattes.cnpq.br/7959080669153671
Since the beginning of cities construction, through its growth and development processes, driven to serve human interests, urban architecture has always focused on built spaces enhancement, leaving natural landscapes aside. By following urban forests opposite paths, technologies have risen and grows even more as cities has growth, which is why this dissertation is focused on development and applied technologies at Sao Paulo state urban forests, one of Brazil's tech hubs. We started with a systematic review abut world's urban forests technologies, followed through electronic forms, to evaluate these technologies uses in Sao Paulo state cities, that ends with a current technology demonstration, widely applied worldwide, except for environmental purposes: sensors taken; in this case, Near Field Communication (NFC), as an ally in areas management and planning, thus having smart green cities. Regarding to the systematic review, three databases were researched: SciELO, Scopus and Web of Science, as thirty-one articles were found after the entire review process. It was observed that current technologies applied are mostly related to remote sensing, and most authors are Chinese and Brazilian, demonstrating our researcher’s importance. Through the electronic forms sent to the municipalities of São Paulo participating in the program Município VerdeAzul (PMVA) and to specialists in urban forests, it was observed that the teams responsible for urban forests are composed of up to three people (72%), that 81% do not use any management software because of the high cost (43%) and lack of training (19%). In relation to the most used technologies, we have the remote sensing by satellite imaging followed using drones, which was also repeated in the survey with the experts. Regarding the use of NFC, two models were installed: tag installed inside the trunk (NFC-E) and sensor encapsulated inside a plastic nail (NFC-P). It was observed that the NFC-P is more efficient than the NFC-E, due to less damage to the tree during installation and durability. Finally, the development of a functional prototype for management that is linked to the NFC technology. Through this study it was possible to notice that the most used technology in urban forests is the classic remote sensing, and the sensors (active and passive) and software are still little used but can be effective to help in the management and planning of these areas.
Estudo do Capim Vetiver (Chrysopogon zizanioides (l.) Roberty) na área ambiental: revisando aplicações
(Universidade Federal de São Carlos, 2022-03-12)
Souto, Aline Rafaela Rodrigues
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Neves, Ubaldo Martins das
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https://lattes.cnpq.br/4956114867482782
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Neves, Anne Alessandra Cardoso
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https://lattes.cnpq.br/5825341428803511
Due population growth and society development, the number of activities carried out that generate negative impacts on the environment has increased. Incorrect disposal of solid waste and liquid waste is responsible for contaminating water and soil, triggering a number of environmental, economic and social problems. Such residues depending on their origin, such as industrial wastewater and electronic waste, may contain heavy metals, wich are harmful to environmental balance. Domestic wastewater, on the other hand, has a high load of organic matter, which, in excess, generates decrease of the oxygen available for aquatic species. With the growth and development of society, in addition to natural resources being negatively impacted, they are used intensely, such as soil exploration, and consequently there are losses of nutrients and important characteristics of it. Currently, in the field of research, techniques have been studied and analyzed in order to remedy negative impacts on the environment. Biotechnology comes as a way to provide cost-effective positive techniques, since they are environmentally appropriate and low cost when compared to other traditional techniques. In the field of biotechnology there is phytoremediation, a technique that uses plants in order to perform environmental recovery, reducing or eliminating the toxicity of contaminants from the environment. One plant used is Vetiver grass (Chrysopogon zizanioides (L.) Roberty), which known for its physiological, morphological and ecological characteristics important for such application. The present research had as main objective to analyze different applications of species in environmental area. Results obtained in the study were a broad area of research of Vetiver grass use in phytoremediation process, both for water and soil contaminated treatment by heavy metals, as well as for removal of nitrogen and phosphorus from domestic sewage and in soil and slopes protection. It was possible to verify the efficiency of the species in removal of contaminants when compared with other species, as well as role of Vetiver in protection of soil and slopes in addition to other promising applications of species in environmental area, being efficiency of use of plant related to characteristics of the same. It was concluded that the specie studied in phytoremediation process showed significant efficiency in removal of heavy metals in water bodies and soil. Furthermore, it proved to be efficient in removal of nitrogen (N) from domestic sewage and also phosphorus (P). Soil and slopes protection by species proved to be efficient with increasing soil shear resistance. Other applications proved positive for use of plant, giving openness to future studies of technique using Vetiver grass.
Carisma e poder: a fala e a voz femininas em contexto político eleitoral brasileiro
(Universidade Federal de São Carlos, 2022-03-14)
Casanova, Nicolle de Brito Conceição
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Miotello, Valdemir
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https://lattes.cnpq.br/9131819326282708
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https://lattes.cnpq.br/1702995815667716
Le présent travail vise à analyser les discours sur le discours des femmes en condition de candidature à la présidence de la République du Brésil, avec un accent particulier sur l'approche de leur voix, produites et/ou diffusées par les médias brésiliens contemporains et matérialisées dans des textes de journaux et magazines de diffusion nationale, ainsi que les discours effectifs des candidats, afin de démontrer que de tels discours conditionnent non seulement les performances oratoires des sujets d'une société, en général, et de ces candidats, en particulier, mais aussi produire les descriptions, commentaires et évaluations de ces performances. Nous proposons surtout la possibilité de comprendre le rôle joué par de tels discours dans la construction et/ou dans l'attribution plus ou moins légitime de ce qu'on entend par charisme, en vue d'entourer notre hypothèse selon laquelle la notion de charisme est mobilisé comme instrument privilégié d'interdiction de la parole féminine dans l'espace public brésilien. A partir de l'Analyse du Discours issue de Michel Pêcheux et des apports de Michel Foucault, nous chercherons à identifier ce qui se dit sur la parole, la voix et le charisme féminin et comment les propos en la matière sont formulés lors des campagnes électorales pour la Présidence de la République dans lesquelles les femmes la représentation était plus fréquente et intense dans les journaux et magazines en question. Plus précisément, notre objectif est de répondre à des questions telles que les suivantes: de quoi et comment les médias brésiliens ont-ils parlé des déclarations et des régularités et variations de la voix des candidats, dans les campagnes électorales où les femmes étaient représentées de manière plus significative? Quels sont et de quels champs proviennent les déclarations lorsque les médias traitent de la parole et de la voix féminines? Quelles sont les stratégies rhétoriques et les qualités linguistiques des candidats mentionnés dans les textes médiatiques? Y a-t-il des variations dans le traitement accordé à la parole et à la voix des femmes, dans la mesure où elles sont décrites par des chroniqueurs considérés comme progressistes ou conservateurs, spécialistes ou non spécialistes? Comment la conjonction entre des éléments linguistiques, tels que les modalisations et les marques d'oralité, et les ressources vocales, c'est-à-dire les modulations prosodiques de la mélodie, de la dynamique et de la qualité de la voix, contribue-t-elle à la construction des images et des identités du locuteur et des auditeurs dans les discours? Comment ces images et identités favorisent-elles ou nuisent-elles à la constitution et à la perception du charisme? Et, enfin, comment considérer que la parole féminine, en général, et ces modulations, en particulier, affectent le fonctionnement de la mémoire discursive, tant au niveau de sa production que de sa réception? Dans le but de formuler des réponses à ces questions, nous analyserons une série de textes des journaux Folha de São Paulo et O Estado de São Paulo et des magazines Veja et CartaCapital, publiés entre 2006 et 2018, ainsi que des déclarations de présidents da República diffusé par les Heures Gratuites de Propagande Électorale (HGPE) et par des débats diffusés sur les chaînes de télévision ouvertes durant la même période.
Otimização do desempenho dinâmico de robôs acionados por cabos com redundância cinemática
(Universidade Federal de São Carlos, 2022-03-14)
Costa, Alexandre Augusto Duarte
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Fontes, João Vitor de Carvalho
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https://lattes.cnpq.br/9473668144091435
Robotic manipulators are used in several applications. With this, the scientific community is increasingly seeking to improve the performance of these robots. One technique that allows such improvement is kinematic redundancy, which consists of adding degrees of freedom to the manipulator, beyond the minimum necessary, for the execution of a task. Among parallel robots, the cable-driven robots stand out due to their ability to perform with high speed and acceleration, besides having cables in place of the usual rigid links. However, for this type of robot, studies that address redundancy do not explore the possibility of increasing the manipulator's dynamic performance. With that, a numerical model of a planar parallel cable-driven robot was implemented in the software MATLAB and the impact of kinematic redundancy was defined by prepositioning the redundant joints. Through an optimization algorithm it was possible to compare different strategies of redundancy resolution, in order to minimize the forces acting on the cables during the execution of the trajectory. Based on the numerical models developed, the results prove an increase in the dynamic performance of the redundant manipulator when compared to the non-redundant model, besides offering new ways to improve the different robot characteristics.
Objetos intermídia na poesia concreta de Décio Pignatari
(Universidade Federal de São Carlos, 2022-03-15)
Bomfim, Monalisa Medrado
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Marques, Wilton José
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https://lattes.cnpq.br/5763590592946918
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https://lattes.cnpq.br/7171053176602826
Décio Pignatari (1927-2012) was the most irreverent one of the trio of concrete poets that he composed with the brothers Haroldo and Augusto de Campos. Pignatari boldness lies in satire, but also in the multiadialogue of media, which he experiences through the exploration of different supports in intermedia poems. Considering that Pignatari helped to found the Association Internationale de Sémitique in France, in 1969, and he followed an interdisciplinary academic pathway, it was admitted that, in relation to the media, Pignatari was the most experimental of the concretes. Therefore, this work focused on experimental poetic aspects of Pignatari through different media, thus understanding them as intermedia objects. This work’s aime was to investigate the Pignatari’s intermedia objects in its orthodox and participant phases, interpreting them in terms of technomodern, criticism and erotic elements. It demonstrated in poetic practice what Lucia Santaella already advocates in her theory, which is, concrete poetry is a precursor of contemporary digital poetry. The first stage of this work discussed the concept of intermediality, based on the texts of Claus Clüver and Ernst Gombrich; the second part prioritized the analysis from orthodox phase poems, um movimento (1956), hombre hambre hembra (1957) and caviar (1959), in written and oral supports; and the third part was dedicated to analysis from poems considered here as participant phase poems, such as beba coca cola (1957) and organismo (1960), in written, audio and audiovisual supports. The poems were analyzed regarding the new sensorial experiences provided by the practices of voice and body performance associated with the different supports experienced. This work had the intention to bring Décio Pignatari’s poetry to the field of inscription support analysis, suggesting an active dialogue with the digital contemporary.
Purposes and choices on the characterization of fossil samples: parameter test and analytical techniques applied to the comparison of different substrates
(Universidade Federal de São Carlos, 2022-03-15)
Silva, Natália Cantuária da
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Pacheco, Mírian Liza Alves Forancelli
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https://lattes.cnpq.br/3481327026891705
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https://lattes.cnpq.br/8650428123430088
Historically, paleontology has been concerned with observational and explanatory issues regarding fossils. However, with the advancement of science and technology, a new field has been structured within this area: paleometry. This interdisciplinary effort seeks to understand how we can use a bulk of techniques in order to access information and interpret data on fossil record. The understanding of limitations and complementarities among techniques can clarify purposes and choices in paleontological research. Despite its contribution, paleometry as a science still needs to be further developed in technical terms. Here, we analyze sediments (sand and clay), rocks (siltstone and sandstone) and fossils (plants and insects) to compare and correlate patterns presented during the use of techniques that can facilitate the researcher's work, such as the use of high tensions related to the use of coating that allows us to see the sample in greater depth during the use of the Scanning Electron Microscope (SEM), as well as observations that the gradual increase in tensions is related to a greater detection of elements in the Spectroscopy of Dispersive Energy (EDS) and its correlation with trace elements found in X-Ray Fluorescence (XRF).
Método para contagem de plantas de milho baseado no processamento digital de imagens multiespectrais utilizando Drones em ambiente de campo
(Universidade Federal de São Carlos, 2022-03-15)
Veramendi, Wilbur Naike Chiuyari
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Cruvinel, Paulo Estevão
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https://lattes.cnpq.br/7924553462118511
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https://lattes.cnpq.br/3835651092184780
The processing of multispectral images acquired with an embedded camera in unmanned aerial vehicles (Drones) has brought new opportunities for precision agriculture. In such a context, this work presents a method for evaluating the emergence of corn seeds (Zea mays L.) in a crop area. For validation a database of spectral images has been organized from flights over a real agricultural area, and digital image processing techniques have been applied, i.e., taking into account the concept of intelligent processing. Therefore, the image processing techniques based on pattern recognition and models to aid decision making by using machine learning were also used. In addition, after images acquisition it has been used the processing of the orthomosaics in the spectral channels, i.e., red (R), green (G) and blue (B), being possible to register and organize all the images. Likewise, for the pre-processing stage, techniques for geometric transformations, brightness and contrast adjustments were also evaluated in a global way, while local adjustments were evaluated based on the use of adaptive equalization techniques, which were explored in the color spaces (YCbYcr), (HSV) and (CIELAB). For the post-processing step, it has been considered a segmentation based on the best observed color threshold technique together with Gaussian filtering and morphological operations. To enable the pattern recognition step, techniques that use distance maps were evaluated considering the use of Euclidean Distance (DE). Thus, the location of canopy patterns in maize plants was studied with a template matching algorithm and a Chamfer pattern mask. For the feature extraction steps, the chain code and circular pattern map techniques have been considered. The analyses made it possible to establish vectors of features based on the patterns related to the number of emergence occurrences for the maize seeds. Finally, two calibration steps have been considered, one of them related to the plant height versus the canopy opening radius, and other related to the number of seeds planted into soil for each position in the crop area versus the identified radii by the developed model. Last, but not least, the classification step has been established, using a set of classifiers based on Support Vector Machine (SVM), and the developed method, proved to be adequate for counting the seeds of the maize plants in the post-emergence stage.
Complexos de Pd(II) e Pt(II) contendo tiossemicarbazonas derivadas do tiofeno: síntese, caracterização, investigação da citotoxicidade e modo de ação
(Universidade Federal de São Carlos, 2022-03-16)
Oliveira, Gabriela Porto de
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Rocha, Fillipe Vieira
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https://lattes.cnpq.br/5841127259122766
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https://lattes.cnpq.br/8902113201652123
In this work, ten ligands and four palladium and two platinum complexes containing thiosemicarbazones derived from thiophene were synthesized in order to evaluate their cytotoxic profile against tumor cells. The compounds were characterized by molar conductivity, Nuclear Magnetic Resonance (31P{1H}, 1H and 13C{1H} NMR, COSY, HMBC, and HSQC), Infrared (IR) Absorption Spectroscopy, Ultraviolet-Visible Absorption Spectroscopy, Elemental analysis, ESI/MS Mass Spectrometry, and Single Crystal X-ray Diffraction (XRD). From the set of techniques, it was possible to verify that the ligands coordinated in an anionic bidentate form, with the exception of the PtT complex, which coordinated in a neutral form, via nitrogen and sulfur atoms of the thiosemicarbazone and the other sites are occupied by a chloride ligand and a triphenylphosphine. The compounds were subjected to stability tests in DMSO, which suggested the permanence of the chloride ligand in the coordination sphere. Afterwards its cytotoxicity was evaluated by the MTT method against the tumor cell lines DU-145 (prostate), A549 (lung), MDA-MB-231 (breast), A2780 Cis (ovary) and non-tumor cell line MRC5 (lung). The ligands were inactive in all cell lines tested, while the complexes were more promising concerning the A549 and A2780 Cis tumor lines. The most cytotoxic compound PdT showed cytostatic behavior against the A549 tumor lineage, while the PdCH3 compound exhibited antimetastatic and cytotoxic behavior against the A2780 Cis cell line. To explore a possible biological target, DNA interaction assays were performed. These data indicate that the complexes interacted with DNA only at high concentrations (100 uM). Moreover, they suggest that the interaction pathway is electrostatic and/or via groove binding with DNA. Additionally, they could not inhibit the action of topoisomerase IIα and IIβ enzymes. However, the platinum complexes inhibited topoisomerase Iβ at all concentrations evaluated (0.1-100 μM). The most promising compound, PdCH3, provided the accumulation of cells in the sub-G1 phase of the cell cycle, which may indicate induction of apoptosis. Furthermore, this complex inhibited wound closure in Wound Healing assays and significantly altered cell morphology. Such data represent an effective ability to affect the cell viability of cancer cells. These results indicate that the synthesized palladium compounds have an encouraging biological activity.
Avaliação dos efeitos da pandemia de Covid-19 sobre a evasão estudantil nos cursos superiores de tecnologia do IFSP São Carlos
(Universidade Federal de São Carlos, 2022-03-16)
Mendes, Ricardo Pertile Frota Teixeira
;
Carvalho, Joelson Gonçalves de
;
https://lattes.cnpq.br/0141039743607067
;
https://lattes.cnpq.br/1540492076655091
This work is about education, particularly, the phenomenon of student dropout, a common and recurrent problem in educational institutions in general. Studies indicate that the students who start, but do not finish their courses are related to social, academic and economic loss. In the public sector, they correspond to public resources invested without the expected return to society. The research target of the work is the Federal Institute of Education, Science and Technology of São Paulo, São Carlos campus, covering the period that marks the beginning of the Covid-19 pandemic in Brazil, from mid-March 2020 until December de 2021. The main objective is to understand the strategies to combat student dropout in higher technology courses on campus occurred during the Covid-19 pandemic. In order to evaluate the phenomenon from a chronological perspective, it was decided to break down the main objective into three specific objectives: 1. To verify the institutional response to the pandemic. 2. Evaluate the phenomena of dropout and student retention and the institutional response during the pandemic and 3. Compare dropout indicators before and after the pandemic. The methodological structure includes a bibliographic review, document analysis and participant observation, conducted through semi-structured interviews with representative agents, employees of the institution who work directly and behind the scenes of teaching, including administrative technicians who provide support as facilitators and teachers, the leading characters of the emergency remote teaching system. The evaluation of the Covid-19 institutional contingency plan by the interviewees was positive, contrasting with the common perception of the intensification of dropout phenomenon in the period. Despite the gap between the onset of the pandemic and institutional actions to combat it, good indicators were found for evasion, suggesting that the positive results obtained may be artificial, being biased by the institutional policy.
Organização de informações digitais pessoais: um estudo sobre as práticas e percepções de organização de discentes universitários
(Universidade Federal de São Carlos, 2022-03-16)
Bertazzi, Pedro Eduardo Rocha
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Furnival, Ariadne Chloe Mary
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https://lattes.cnpq.br/2264201747953240
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https://lattes.cnpq.br/1291482506649810
O presente trabalho visou mapear as práticas e as percepções que os discentes de uma universidade federal têm sobre a maneira que organizam, tratam, arquivam e acessam seus documentos digitais pessoais, além de oferecer um arcabouço informacional sobre o comportamento deles para subsidiar futuras atividades de letramento informacional e desenvolvimento de novas tecnologias. Foi usado como procedimento metodológico a pesquisa de levantamento (survey) e a coleta de dados se deu através da aplicação de um questionário online. Os principais resultados encontrados foram que os discentes possuem um sistema próprio de organização e confiam nele. Junto a isso, observamos práticas que podem ser postas em debates e trabalhadas como o salvamento excessivo de arquivos, relutância de apagar arquivos não importantes e a caracterização do sistema em nuvem e HDs externos como arquivos intermitentes. Sendo assim, pode-se concluir que há necessidade de atividades de letramento informacional para estimular e aprimorar as competências em informação nos processos de arquivamento e organização de arquivos digitais dos discentes universitários, o que contribuirá para as tomadas de decisões futuras no mundo acadêmico.
Metadados do subprojeto HU UFSCar do projeto "Inovação e transformação da atividade de prevenção de riscos profissionais – ITAPAR"
(Universidade Federal de São Carlos, 2022-03-16)
Mininel, Vivian Aline
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Moura, Daniel Braatz Antunes de Almeida
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https://lattes.cnpq.br/4557060516800427
;
https://lattes.cnpq.br/5287608431146025
Filmes comestíveis de guacamole: relações entre as proporções dos componentes e as propriedades
(Universidade Federal de São Carlos, 2022-03-16)
Matos, Matheus Carvalho de
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Azeredo, Henriette Monteiro Cordeiro de
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https://lattes.cnpq.br/8516223928904348
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https://lattes.cnpq.br/8522602961816619
The food industry has tried to develop products that meet the requirements of consumers, especially in terms of sensory and health aspects as well as convenience. In times when food delivery has been very frequent, some multicomponent foods may suffer texture changes from water migration between components with a high water activity difference. The present study aimed to develop and characterize edible films from bacterial cellulose and guacamole, to be consumed as a snack or applied as a water barrier layer in multicomponent foods such as tacos, pizzas, and wraps, reducing the water migration and avoiding texture changes. Ten films were produced with different proportions of biopolymeric matrix (bacterial celulose – BC - and carboxymethyl cellulose - CMC), plasticizer (glycerol) and flavor component (guacamole), according to a simplex-centroid design. The results indicated the potential applicability of the films, as well as the influence of the component proportions on the tensile properties, the water vapor permeability (WVP) and the surface hydrophobicity. Films with higher proportions of cellulosic matrix presented lower WVP values, being more promising for the prospected application. An application test was carried out in which the film was tested as a barrier layer between nachos and tomato sauce, and the texture of the nachos was tested after 50 min. The film reduced the texture loss by the nachos, indicating that the water migration was decreased.
Política industrial em países dependentes: limites estruturais do novo desenvolvimentismo
(Universidade Federal de São Carlos, 2022-03-17)
Barbosa, Tayla Nayara
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Carvalho, Joelson Gonçalves de
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https://lattes.cnpq.br/0141039743607067
;
https://lattes.cnpq.br/1006450649563809
The objective of the research was to analyze and compare the structural economic limits of the new South American developmentalism, taking the cases of Brazil and Argentina as examples. The focus of the analysis was the Lula administration (2003-2010) in Brazil and the Néstor Kirchner (2003-2007) and Cristina Fernández de Kirchner (2007-2011) governments in Argentina. The analysis of these limits was based on the dependency theory of Ruy Mauro Marini (1973), according to which the economies of Latin American countries belong to a historical process of power relations, since they are dependent on transfers of value from the central economies. Therefore, in general, the new developmentalism is seen as an economic development strategy that theoretically proposes to guarantee the binomial: economic growth and income distribution. Thus, what we intend to analyze is whether the economic orientations based on the new developmentalism and implemented by these governments diverged or converged with neoliberalism. The hypothesis investigated is that the new developmentalism failed to constitute itself as an alternative long-term development model, since it did not configure itself as a counter-hegemonic project to neoliberalism.
Contribuição ao estudo de pilares pré-moldados de concreto em etapa transitória
(Universidade Federal de São Carlos, 2022-03-17)
Otrente, João Francisco
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Ferreira, Marcelo de Araújo
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https://lattes.cnpq.br/4199122391532470
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https://lattes.cnpq.br/3182929421075739
During its production, the precast structures go through different stages called the transitory stage and, consequently, through different static schemes and requests. The precast columns during this stage have a static beam scheme which can cause particular design situations in which the transitory stage is critical for the design. In addition, many designers do not consider the loss of stiffness due to eventual cracking of the element at this stage. The objective of this work is to evaluate how the application of prestressing with pre-tension helps in the performance of precast concrete columns in particular design situations in which the formation of cracks in the phases of the transitory stage can occur. To achieve this, a case study was carried out on a precast concrete column with a critical transitory stage. The column was analyzed in reinforcement concrete with different static schemes and later in prestressed concrete containing two arrangements of active reinforcement. The analysis of the element in question was performed using the following parameters: tension in the reinforcement, cracking moment, amount of reinforcement and secant flexion stiffness via analytical methods. In addition, a parametric analysis was carried out during the demolding phase and lifting in assembly, whose parameters obtained from the variation of the position of the lifting loops were: bending moments, tension in the reinforcement and stiffness reduction coefficient for the most requested sections. Based on the analysis of the results, it is concluded that when using three lifting loops, the column presented a stiffness of up to 0.84.EI during demolding. With the introduction of prestressing, the column with two lifting loops resulted in a stiffness of up to 0.90.EI at the end of transitory stage. Still, it was observed, via parametric analysis, that the column only presented a stiffness bigger than 0.50.EI when the stress level in the passive reinforcement was less than 0.30.fyk. Finally, it is understood that the loss of stiffness during the transitory stage must be accounted for.