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Alteração no metaboloma e na expressão gênica na via da biossíntese de piranocumarinas em Citrus sinensis x Citrus limonia em resposta ao Huanglongbing
(Universidade Federal de São Carlos, 2023-05-23)
Amaral, Jéssica Cristina
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Silva, Maria Fátima das Graças Fernandes da
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https://lattes.cnpq.br/0457632122660653
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https://orcid.org/0000-0002-7081-817X
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https://lattes.cnpq.br/6610572791860659
Greening (Huanglongbing/HLB) is the most destructive citrus disease. It is caused by the bacterium Candidatus Liberibacter asiaticus (CLas), C. Liberibacter africanus and C. Liberibacter americanus and it is transmited by the insect vector psyllid Diaphorina citri. There is no commercial variety of crown plant or rootstock resistant to disease and contaminated plants cannot be cured. Despite of considerable research, there is little knowledge about the processes involved in plant infection and colonization by CL. A study of the plant/bacteria interaction CLas was developed by LC-HRMS/qTOF in positive and negative ionization modes. Central and lateral roots of healthy and CLas-infected plants of C. sinensis x C. limonia cultivated in a greenhouse, and the roots of healthy and infected C. sinensis seedlings cultivated in vitro were analyzed. Through the analysis of the molecular network, it was possible to observe an increase in the concentration of some metabolites in plants infected with HLB. Significant differences using the paired two sample t-test were observed in the concentration of demethylsuberosin, osthenol, 5-methoxyseselin, xanthylethin, seselin and limonin for plants grown in a greenhouse and for xanthylethin, seselin and limonin in seedlings grown in vitro. The compounds mentioned above, were responsible for the classification observed in the PCA analysis, that classified the samples in four groups: roots, lateral roots, lateral roots of health plants and lateral roots of infected plants. The quantification of the expression of DXR, DXS2, PT1 and PT2 genes was carried out by qPCR, in C. sinensis x C. limonia roots of healthy and symptomatic plants infected with CLas. There was a decrease in the expression of the DXR, DXS2 and PT1 genes in plants infected with CLas compared to healthy ones. For DXR, a two-fold decrease in gene expression was observed, for DXS2 by 5.7-fold and for PT1 by 3.6-fold. For the PT2 gene, there was an increase in relative expression for infected plants compared to healthy ones of 2.6 times. These results show that the plant responds by producing some metabolites in greater or lesser quantities in the presence of CLas bacteria, in addition to causing changes in gene expression in the pyranocoumarin biosynthesis pathway. Therefore, a plant reaction is observed inhibiting the biosynthesis of linear coumarin derivatives in favor of angular ones, which are prenylated at C-8.
À procura de evidências: a transformação da canção sertaneja na obra de Chitãozinho & Xororó sob o enfoque da análise crítica do discurso e da semiótica da canção
(Universidade Federal de São Carlos, 2023-05-23)
Santos, Julio César Ribeiro dos
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Martins, Maria Sílvia Cintra
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https://lattes.cnpq.br/9241992645160356
;
https://orcid.org/0000-0003-3911-418X
;
https://lattes.cnpq.br/5388166555913162
The enduring permanence and expressiveness of the sertanejo style of popular song allows spontaneous recognition regarding its ongoing transformation in the most diverse aspects that can be observed, whether in materiality, or in the discursive or social aspects articulated interdependently with it. The general objective of this thesis involves describing, interpreting and proposing an explanation about this transformation, having as specific focuses: (a) the role of language in its dialectical relationship with the social structure in country song texts and the constant transformation of style; and (b) the investigation around the permanence or erasures of the caipira objectified by Darcy Ribeiro (1995) in the so-called sertaneja discursive formations. The theoretical foundation proposes and applies a field of interaction between some elements of Song Semiotics (TATIT [1996] 2012), a theory that pioneers accommodate song texts in the field of linguistic studies, and Critical Discourse Analysis (FAIRCLOUGH, 1989; [1992] 2001, [2005] 2012), which interrelates in an elegant way summarized in an efficient theoretical-methodological model language, discourse and society. I make use of the work of Chitãozinho & Xororó between the years 1970-2022, which, among countless consecrations, actively participated in different ordinances of the field, which implies both the dialogue with countless artists belonging to different genres at different times and the active inclusion in diverse business models. As a corpus, a presentation of a concert linked to the Evidências tour (2017-2020) whose analyzes are more specifically focused on the songs. The show consists of 24 song texts, taken in terms of translation (JAKOBSON, [1959] 2010) of their source texts, these referring to the period 1970-2010. Aiming to increase the concreteness of the analyses, the research includes external observations, semi-structured interviews (CRESWELL, 2010) and personal communications with professionals linked to the pair. Despite the mention of the field and its figurative isotopies enriched by singing in a duet, nasally invested with falsettos and vibratos, which suggests a cohesive link in the style, which is endowed with such material traits in its roots (LIMA, 1972), the results point to the erasure of the caipira described by Ribeiro (1995) in the so-called sertaneja song due to factors that articulate the desire of the artists themselves to disassimilate the social stigmas imputed to them and interests of the Cultural Industry and its constant scope of entertainment in different semantic fillings structured and structuring texts.
Distanciamento e pertencimento da enfermeira na assistência pré-natal no contexto da pandemia da Covid 19
(Universidade Federal de São Carlos, 2023-05-23)
Fermiano, Andrea dos Reis
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Fabbro, Márcia Regina Cangiani
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https://lattes.cnpq.br/6978014098495031
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https://orcid.org/0000-0003-2601-8818
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https://lattes.cnpq.br/6451226616303829
Prenatal cares constitute an important moment to exercise the healthcare functions, including health promotion, sorting, diagnosis and disease prevention, constituting a set of actions that are simultaneously preventive, health promoting, diagnostical and healing, aiming good outcomes of the pregnancy for women and newborns. The objectives of this thesis are: understand, describe and evaluate Prenatal Nursing Care (PN), aiming at it’s qualification, in the context of the COVID-19 pandemic; understand the potentialities and needs of nurses for the qualification of the PN in the context of the pandemic; identify practical measures to qualify prenatal care; redirect actions to implement the activities proposed by the health teams. Methods: the action research was used because it is an interventionist method, in which the researcher leaves the position of spectator and together with the studied population, tests the hypotheses about the phenomenon of interest, implementing and accessing changes in the real scenario. For this, six nurses from the main Basic Health Units in Primary Health Care in the city of São Carlos participated in this research. Results and Discussion:This study showed that there is a distance between the nurse and Prenatal Care, whose current model of care does not belong to pregnant and puerperal women and also does not belong to nurses. The pandemic intensified this distance and the nurses remained agents of information and guidance. The nurse's role is solitary and subordinate to the doctor's work. Without enough strength to do their actions differently, the nurses prefer the comfort of safe stability than the turbulence of a fight for freedom, as a result of the perception that the challenge is bigger than the condition of confrontation. Final considerations: there is an evident need to recognize the importance of health care, the creation of spaces for dialogue and knowledge exchanges between nurses and pregnant women, favored by the group of pregnant women as well as between the nurses, provided by the study group/work. The model of care lines must be recognized as a strategy to overcome the fragmentation of the attention and management in the search for the challenges and scope of comprehensive care for the pregnant woman and her family, which will imply in a work processes review, the association, interactions, support and commitment of the management team with the identified tensions. The qualification of Nurses' Prenatal Care will only be possible with a change in the work process and greater commitment from the municipal public management.
Efeitos da intervenção com vídeo games ativos no equilíbrio de crianças com e sem Transtorno do Desenvolvimento da Coordenação: um estudo follow-up
(Universidade Federal de São Carlos, 2023-05-24)
Draghi, Tatiane Targino Gomes
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Jelsma, Lemke Dorothee
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Tudella, Eloisa
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https://lattes.cnpq.br/3207258034860219
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https://lattes.cnpq.br/4518222922395138
General objective: To analyze the static balance of children with and without DCD in bipedal and unipodal positions, and to monitor the effects of training through AVGs, Wii Fit and Xbox Kinect on the balance and postural sway of these children.
O conceito de autoestima na análise do comportamento
(Universidade Federal de São Carlos, 2023-05-24)
Marcelino, Madeleine Reinert
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Elias, Nassim Chamel
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https://lattes.cnpq.br/4216525883778695
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https://orcid.org/0000-0003-4197-623X
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https://lattes.cnpq.br/8099013130438322
This thesis consists of three studies that address the theme of self-esteem in Behavior Analysis. The first study is a systematic review of specific Behavior Analysis books and journals on self-esteem. Key findings include the scarcity of studies and the lack of a well-established behavioral definition for the concept. The second is a theoretical study that seeks to understand the concept of self to comprehend self-esteem and proposes a behavioral definition that takes into account the relevant factors in its construction, especially social interactions. The third study investigates the applicability of the Function Acquisition Speed Test (FAST) in measuring self-esteem, comparing the results obtained with those of a Rosenberg Self-Esteem Scale. The results indicate positive self-esteem in participants, both in the FAST and the Rosenberg Self-Esteem Scale, though no correlation was found between the results of the two instruments. Together, these studies contribute to a broader understanding of self-esteem from a behavioral perspective and explore different methods of assessing this psychological construct.
Método para alocação de métricas de impacto ambiental em unidades industriais multiproduto
(Universidade Federal de São Carlos, 2023-05-24)
Oliveira, Alexchéviny Gimenez
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Giordano, Roberto de Campos
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https://lattes.cnpq.br/0834668419587001
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Furlan, Felipe Fernando
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https://lattes.cnpq.br/4136352953168873
Life cycle assessment is an environmental, economic, and social evaluation technique focused on understanding and quantifying the impacts related to a particular product, good, or service. This assessment considers all stages in which it performs its function, from obtaining resources for production to final disposal. Often, the production stage generates various marketable products, such as in biorefineries, industries whose backbone is the production of biofuels along with a portfolio of other higher-value-added products. Although the contribution of industrial processing to environmental impact is typically lower than that of the agricultural sector, it is from the gates of these multiproduct processes that the final products emerge. Thus, the method employed for allocating environmental impact indices to the various products plays a crucial role in valuing, comparing, and improving production processes. However, there is still no consensus on the most appropriate allocation method. In this context, the objective of this study was to develop a systematic, first-principles-based method for detailed accounting of impacts throughout the industrial process. The new proposed method was compared to the global allocation approach, taking as a case study a sugarcane biorefinery producing ethanol and electricity. In this case study, the proposed allocation method calculated an impact of 27.44 g CO2 eq/MJ for anhydrous ethanol and 4.68 g CO2 eq/MJ for electricity, representing 94.11% and 5.81% of the total impacts of the analyzed process, respectively. In comparison, the classical energy allocation method calculated an impact of 21.89 g CO2 eq/MJ for both products, representing 75.08% for ethanol and 24.92% for electricity. It was found that the proposed method allowed for separating the impacts associated with each production process, without penalizing one product for the impacts generated by the other product. Furthermore, the method enables the visualization of impact flows through the process, aiding in identifying sustainability bottlenecks and optimizing the process.
Oxidação direta de metano em metanol sobre cátions [oxo-Cu2+] em zeólitas Y e mordenita – Efeito da temperatura aplicada aos ciclos isotérmicos de ativação e reação
(Universidade Federal de São Carlos, 2023-05-24)
Picinini, Monize
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Urquieta-González, Ernesto Antonio
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https://lattes.cnpq.br/2389975677904655
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https://lattes.cnpq.br/7026596027202260
It is expected that in the coming decades, natural gas, consisting mainly of methane, will become an important raw material in the industry to produce chemicals and intermediates. Thus, it is of great interest to develop processes for the direct oxidation of methane to methanol via more sustainable and cost-effective routes, which would also reduce methane emissions to the atmosphere and, consequently, its impact as a greenhouse gas. Despite the scientific advances achieved in the study of this process, the breakage of the C-H bonds of the methane molecule remains a challenge, which has encouraged the development of highly active and selective catalysts. The studies have focused on exchanging zeolites with oxidized metallic cations to recreate the reactivity mechanism like that found in the enzyme methane monooxygenase, which converts methane to methanol under atmospheric conditions of temperature and pressure. In the discussed context, the objective of the work was to study the direct oxidation of methane to methanol over zeolites Y and mordenite exchanged with copper oxo-cations, analyzing the influence of the zeolitic structure and the activation conditions on the formation, nature, and activity of the generated species, as well as the conditions related to the methane reaction. The activated Cu-zeolites were characterized by energy-dispersive X-ray spectroscopy, X-ray diffraction, nitrogen physisorption, scanning electron microscopy, hydrogen, and methane temperature-programmed reduction, and in situ Fourier transform infrared spectroscopy by transmission mode. In order to determine the active species generated during activation and their subsequent consumption during methane reaction, both operated isothermally, in situ ultraviolet-visible diffuse reflectance spectroscopy analysis was performed. All the studied Cu-zeolites were able to convert methane to methanol. The activity profiles of the zeolite Y and mordenite were associated with the nature of the generated active copper species and their reaction temperature with methane. The in situ DRS-UV-Vis spectra showed bands related to dimeric and trimeric copper species in both the studied Cu-zeolites. Formation of monomeric active copper species was also observed for mordenite.
Perturbações unitárias multiplicativas
(Universidade Federal de São Carlos, 2023-05-24)
Díaz, Pablo
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Oliveira, César Rogério de
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https://lattes.cnpq.br/5485204156806697
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https://orcid.org/0000-0002-1926-8934
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https://lattes.cnpq.br/6285758026839876
For the self-adjoint operator H, the perturbation H+A, with A also a self-adjoint operator, there is a long list of results regarding the spectrum of this perturbation. We study the spectrum of a multiplicative perturbation XU (UX) with U and X unitary operators. Specifically, we find similar results for the Howland, Weyl-von Neumann Theorems and the continuous singular spectrum for a perturbation of rank one.
Tool holder instrumentation for didactic purposes: a theoretical and experimental approach
(Universidade Federal de São Carlos, 2023-05-24)
Mota, João Henrique Schiavon
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Antonialli, Armando Ítalo Sette
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https://lattes.cnpq.br/4367459395417045
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https://lattes.cnpq.br/4217799494665012
In machining processes the feed and cut movement are the main responsible for the power consumption, justifying a deep study about it in mechanical engineering courses. The power consumption is due to the machining forces involved in these movements, related with the cutting parameters and cutting tool geometry. This relationis usually presented in machining class in a theoretical form, being made through the Orthogonal cutting theory, the Merchant’s model and the Kienzle’s model for cutting forces. This thesis first present these three theories, and aiming to provide an experimental activity for the machining classes, presents the design and instrumentation of a tool holder for measurement of machining forces. Both tool holder design and instrumentation, are present with an integrative look with other subjects of the mechanical engineering course, approaching mainly the use of materials mechanics. The tool holder was validate numerically and experimentally, pointing to a convergence between results obtained by both ways.
Governança das águas no Brasil: colaborações da sociedade civil e desafios da implementação do Sistema Nacional de Gerenciamento de Recursos Hídricos
(Universidade Federal de São Carlos, 2023-05-24)
Marcon, Priscila
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Hanai, Frederico Yuri
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https://lattes.cnpq.br/7651828454575175
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https://orcid.org/0000-0001-8428-0019
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https://lattes.cnpq.br/9715507409509977
The Brazilian hydric scenario is complex, requiring management and governance practices to respond to current demands while preparing for future challenges. Federal Law No. 9433, enacted in 1997, established a way of managing water in Brazil based on the integration among sectors, participation of different actors, and on decentralized decision-making processes. This law also determined a set of institutions responsible for its implementation, composed of federal, state, district, and river basin levels entities, which is called the National Water Resources Management System (NWRMS). However, part of the existing difficulties in implementing these molds of water management may be since that NWRMS is not consolidated yet and these institutions have found obstacles to acting according to their responsibilities. Thus, this research objective was to identify and analyze the gaps, difficulties, and challenges that the NWRMS bodies have been facing, to investigate possible civil society synergies, and collaborations in water management and governance. These limitations identification were possible with a Systematic Review of the literature combined with the Content Analysis. To consider the importance of social actors involved in water management and governance, even if they do not participate in an institutionalized way in NWRMS, semi-structured interviews were carried out with representatives of movements, initiatives, and civil society organizations, whose responses were also examined with the Content Analysis use. The results indicate that there are a series of structural aspects, disputes, and interconnected operational constraints that hinder the promotion of integrated, decentralized and participatory water management. It was also noted that the civil society entities that are active in water governance have aligned perceptions about the limitations of NWRMS with the aspects found in the specialized literature. In addition, it was observed that the performance of entities, such as those interviewed, despite the latent potential, has contributed indirectly to the functioning of NWRMS. Within the analyzed context, it is pointed out that the main synergies brought by initiatives, movements, and civil society organizations are found in water governance, in which they have acted to sustain accomplished practices, claim improvements, and resist setbacks in water management. Finally, it reflects on water governance based on the Complex Adaptive Systems approach, a theoretical framework that supported the understanding, systematization and integration of the reflections arising from the analysis carried out in this work.
In situ chemical oxidation of ciprofloxacin by activated peroxymonosulfate using nanometric MnOOH: investigation of operational parameters and changes on the catalyst surface
(Universidade Federal de São Carlos, 2023-05-24)
Rosa, Yeison Neder Nunez de la
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Aquino, José Mario de
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https://lattes.cnpq.br/8847710280926769
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https://orcid.org/0000-0001-6099-9846
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https://lattes.cnpq.br/7299008176913606
Nanometric MnOOH compound was synthesized by a green approach, characterized, and used to remove ciprofloxacin (CIP) antibiotic by in situ chemical oxidation using peroxymonosulfate (PMS). The effects of varying concentrations of MnOOH, PMS and pH, on morphological, structural, chemical, and electrochemical changes were studied during and after the experiments. The CIP molecule was completely oxidized and partially mineralized (~ 60%) after 6 h under acidic conditions. The mechanism of CIP degradation was induced by PMS activated oxidants (HO• and 1O2) and, to a lesser extent, directly on the surface of MnOOH. The latter process was evidenced by transmission electron microscopy showing the formation of an amorphous shell (MnOx) over MnOOH crystallites, as verified using X-ray photoelectron spectroscopy and the subsequent increase of the charge transfer resistance that hindered a further electron transfer to the PMS oxidant. Such behavior is recoverable when using a freshly prepared PMS solution.
Precoating em filtro de mangas para remoção de material particulado e potencial redução da emissão de SO2 na dessulfurização
(Universidade Federal de São Carlos, 2023-05-25)
Andrade, Bárbara Karolinne Silva Araújo
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Sartim, Rafael
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https://lattes.cnpq.br/0380809249444032
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https://orcid.org/0000-0002-5678-2027
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Aguiar, Mônica Lopes
The steel industry is responsible for generating pollutants that need to be treated before being released into the atmosphere, various gases such as ammonia, benzene, carbon monoxide, sulfur dioxide and particulate matter. To carry out the cleaning of particulate matter, the dirty gas passes through gas-solid separation equipment, such as bag filters, which have high collection efficiency for a wide granulometric range and easy operation. To increase bag filter collection efficiency, some industries use a bag pre-treatment called precoating, which consists of covering the surface of non-woven filter media with a certain particulate material, forming a fine layer of dust that increases the time mango saturation. In addition to the benefits in filtration, the hydrated lime present in the precoating layer could be investigated in the removal or reduction of sulfur dioxide, in order to reduce the visibility of gases in chimneys. However, studies on precoating and the influence of operating parameters in bag filters in the treatment of sintering gases are rare. Thus, this work aims to evaluate the efficiency of precoating, varying its humidity and thickness, in the filtration of gases and the desulphurization of gases from the steel industry. For this purpose, in Chapter 2, the parameters of thickness and humidity of the precoating layer were evaluated on the efficiency of collecting micro and nanoparticles; in Chapter 3 the same parameters were evaluated in 50 filtration cycles; and, in Chapter 4, the efficiency of hydrated lime in a gas desulphurization unit was evaluated. The results showed that precoating increased the collection efficiency for micro and nanoparticles by up to 3%, increased the cycle time by up to 9000s and that hydrated lime showed 100% absorption of sulfur dioxide in a batch system
O corvo que rima também sabe jogar: tradução intersemiótica e design de jogo
(Universidade Federal de São Carlos, 2023-05-25)
Krasnoschecoff, Andrêi
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Martins, Maria Sílvia Cintra
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https://lattes.cnpq.br/9241992645160356
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https://orcid.org/0000-0003-3911-418X
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https://lattes.cnpq.br/6898767172538319
Electronic games emerged in the 1950s. Over time, the novelty became a kind of cultural phenomenon, resulting, on the one hand, in the creation of an industry that moves a lot of money, and on the other, in a cultural practice that influenced and was influenced by various spheres of human activity. Thibault (2016) understands that games emerged in a borderline position of culture and over time began to occupy a central position. This movement takes place within the semiosphere, a concept developed by Lotman (2014) to explain cultural semiotic behavior. Languages have been merging as technology has developed. Within this cultural flow, translations take place. Translation, here, will be treated as an everyday phenomenon of language, as we are using the theoretical ideas of Peirce's semiotics (2018) and the Semiotics of Culture, which place translation in a different place than what is usually thought. The current importance of electronic games within the dynamic system of culture was what motivated this experimentation to produce an intersemiotic translation, whose source text is a poem (The Raven, written by Edgard Allan Poe) and the result is a document with a script and guidelines for creating an electronic game. In this process, we bring the translator's view: the problems he encounters and the attempt to solve them. It is expected to contribute both to the reach of the work and the author to different audiences and discussions about the translation and interaction between electronic games and other media.
Análise dos efeitos de expansão e crise econômica sobre os diferenciais de renda por gênero no Brasil via regressão quantílica
(Universidade Federal de São Carlos, 2023-05-25)
Oliveira, Bruna Gabrielle Santos Gonçalves Oliveira
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Figueiredo, Adelson Martins
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http://lattes.cnpq.br/2582161065438214
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http://lattes.cnpq.br/1393907557190168
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Rodrigues, Rodrigo Vilela
This study investigates wage inequalities between men and women in Brazil, considering variables such as race, region, job position, occupational group, hours worked, age, and educational level. The objective is to understand the persistent income disparities in the labor market and contribute to the formulation of public policies more aligned with Brazilian realities. The analysis is based on the hypothesis that economic crises exacerbate these inequalities. To this end, the study examines three distinct periods: a year of economic expansion (2007), the beginning of Brazil's contemporary economic crisis (2015), and a year marked by the intensification of the crisis due to the pandemic (2021). The data used were drawn from PNAD (2007, 2015) and PNADc (2021). Unlike other studies on the subject, the estimates were conducted using Quantile Regression, based on the Mincerian equation. This method allows for the evaluation of labor returns at various points of the income distribution, not just the average. The results indicate significant wage disparities between men and women, as well as within each group. Additionaly, it was possible to conclude that these income gaps increase during periods of economic crisis.
O uso do livro didático
(Universidade Federal de São Carlos, 2023-05-25)
Oliveira, Laôr Fernandes de
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https://lattes.cnpq.br/5479838101146249
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https://orcid.org/0000-0003-1108-1152
Este artigo tem como objetivo investigar as significações geradas pelos docentes em relação ao material didático de ciências, organizado pela rede escolar SESI-SP, por meio da metodologia dos Núcleos de Significação. Através do estudo das significações, foi possível conhecer aspectos importantes dos professores das escolas SESI-SP, de sua proposta educacional e, sobretudo, do material didático. Os sujeitos desta pesquisa responderam a um questionário com questões fechadas e abertas. A partir das respostas obtidas e da análise dos dados, foram efetuadas as tabulações das questões fechadas e elaboração de núcleos de significação das questões abertas, visando uma boa compreensão e enriquecimento das questões trazidas pela literatura. Os resultados sugerem que a rede SESI-SP deve propiciar momentos de interação entre alunos e professores por meio das atividades propostas pelo material didático de ciências, com a utilização de recursos tecnológicos em um ambiente colaborativo.
ESIREOS: Avaliação internal, eficiente e escalável de métodos não supervisionados de detecção de anomalias
(Universidade Federal de São Carlos, 2023-05-25)
Alves, William Adriano
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Marques, Henrique Oliveira
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https://lattes.cnpq.br/6792856084528925
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Naldi, Murilo Coelho
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https://lattes.cnpq.br/0573662728816861
Anomaly (outlier) detection is one of the main problems in data mining. Since anomalies can translate into important information in numerous fields, several methods were developed to identify them, especially unsupervised methods, which is the focus of this work. To soften the need for studies on assessing and quantifying the quality of the result of these unsupervised methods, the IREOS index was proposed as the first internal evaluation technique for unsupervised anomaly detection methods. IREOS allows one to select the best algorithm and parameters for a given problem using only intrinsic information from the data. However, IREOS demands the training of many highly complex classifiers for each object in the dataset whose outlier detection solutions are being analyzed. This feature limits the application of IREOS to small datasets since the classifiers use all points in the dataset during its training. In the present work, we propose ESIREOS, the first version of IREOS that addresses its performance and processing deficiencies using Massive Parallel Computing techniques that efficiently implement horizontal computational scaling for many machine learning problems. ESIREOS also makes use of approximated Nearest Neighbor Graphs to reduce the volume of data and processing power demanded by IREOS without any significant loss in the quality of the results. We evaluate ESIREOS theoretically, estimating its asymptotic complexity and with experiments over real and synthetic datasets to attest to its effectiveness and performance compared to the original version, including large datasets. The results showed that ESIREOS resulted in a significant improvement in computational complexity when compared to the original IREOS while maintaining quality. ESIREOS showed to be capable of evaluating solutions for very large datasets, even those which IREOS was not capable of evaluating in a feasible time. Therefore, this efficient and scalable new version can be used in many scenarios, mainly, but not limited to, those with large or distributed data.
Uso da água, agricultura e florestas: diagnóstico e percepção de atores locais em tempos de mudanças climáticas
(Universidade Federal de São Carlos, 2023-05-25)
Gallo, Mariane de Cássia
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Sais, Adriana Cavalieri
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Leite, Eliana Cardoso
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https://lattes.cnpq.br/0115095851353833
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https://lattes.cnpq.br/2186623269243747
Landscapes, dynamic in nature, are constantly transformed to better adapt to human needs and now need to inspire another movement: how can people place the landscape at the center of their reflections? With the advance of the predatory use of natural resources, we see fundamental elements such as water uffering impacts in its natural cycle and consequently threatening the future supply, mainly of the most vulnerable communities. Climate change, intensified by anthropic action, is a major challenge in many spheres, including water security. Thus contextualized, this work aims to analyze the perception, in a section of the local community, about the changes in the landscape in the watershed of Ribeirão do Meio in Leme/SP. In addition to the identification of physical aspects, evaluated through a bibliographical and cartographic review, it was intended to expand the look to the perception of citizens, with special concern to the view of family farmers. For this purpose, semi-structured interviews were applied and subsequently analyzed quantitatively and qualitatively, using Bardin's categorical content analysis method. The results pointed to a convergence between the collected reports and the data found in the researched bases, such as the census surveys of the Brazilian Institute of Geography and Statistics (IBGE). Impressions about changes in the rainfall regime and increased drought echoed with the trends identified in the 2022 Situation Report, prepared by the Mogi Guaçu River Basin Committee (UGRHI- vi 09). The percentage of native vegetation cover in the study area is lower than the state average of 22.9% (Forestry Inventory of the State of São Paulo, 2020), while a large part of the territory is occupied for the development of different economic activities. In view of the context described, it is understood that the community's point of view is fundamental to be the focus and basis for future planning aimed at maintaining ecosystem services in the basin and elaborated according to the real desires of those who occupy and live in this land.
Darwinismo social em fast-forward: uma investigação sobre literatura cyberpunk e ambientalismo
(Universidade Federal de São Carlos, 2023-05-25)
Ueda, Nicholas Vendramin
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Marzochi, Samira Feldman
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https://lattes.cnpq.br/6466778428443375
Bien qu’il soit possible de trouver des études avec de brèves mentions de la présence de problèmes socio-environnementaux dans les récits de science-fiction cyberpunk, la façon dont ils sont dépeints ne reçoit pas beaucoup d’attention. Extraits de "Les androïdes rêvent avec moutons électriques ?", de Philip. K. Dick, et de "Neuromancer", de William Gibson, ont étudié pour se dévoiler la façon dont les problèmes socio-environnementaux sont représentés dans la littérature de science-fiction cyberpunk. Le choix de ces œuvres est dû au fait qu’elles sont, respectivement, l’œuvre qui a inspiré le cyberpunk et l’œuvre qui a inséré le cyberespace dans la science-fiction, ayant comme auteur l’un des principaux représentants du sous-genre littéraire en question. L’analyse a été réalisée selon les critères de l’analyse textuelle discursive, de sorte que des extraits qui décrivent des problèmes socio-environnementaux ont été sélectionnés et, sur la base de ceux-ci, des catégories ont été élaborées afin qu’il soit possible d’identifier quels types de problèmes socio-environnementaux ont été détectés. À partir des données obtenues, un parallèle a été fait avec les revendications et les préoccupations écologistes des années 1960 et 1980, période de production des deux récits retenus pour l’étude, afin de déterminer si les problèmes socio-environnementaux décrits dans la fiction sont les mêmes que ceux vécus par la société de l’époque et aussi de comprendre leurs origines.
Asymmetric induction on isocyanide-based transformations: development of stereoselective Ugi-type reactions
(Universidade Federal de São Carlos, 2023-05-26)
Silva, Vitor Alcantara Fernandes da
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Paixão, Márcio Weber
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https://lattes.cnpq.br/3773908504964104
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https://orcid.org/0000-0002-0421-2831
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https://lattes.cnpq.br/7490678528488396
The design of new synthetic transformations that rapidly allow construction of structurally complex molecules from simple starting materials under both concepts of diversity and function-oriented syntheses is extremely desirable in contemporary organic chemistry. In this regard, multicomponent reactions (MCRs) appear as one of the most useful strategies for quickly generating structural diversity and molecular complexity. Among the vast repertoire of MCRs, isocyanide-based multicomponent reactions (IMCRs) stand out as a powerful approach to achieve highly functionalized molecules with elevated chemical efficiency, convergence and atom economy. As part of our ongoing interest in developing diastereoselective intramolecular I-MCRs based on chiral scaffolds, an efficient strategy has been established, which combines the stereocontrol of organocatalysis with the diversity-generating character of multicomponent reactions, leading to structurally unique cyclopentenyl frameworks containing two stereogenic centers. Based on our recent success into using hemiacetals in substrate-controlled I-MCR reactions, we have envisioned the development of an asymmetric Ugi-type Reaction with achiral hemiacetals using an organocatalytic Brønsted acid as the element of asymmetric induction. After a short screening of conditions, we found out that SPINOL-derived chiral phosphoric acids, especially with phenanthryl as substituent (59% yield, 66% ee), which was chosen as the best catalyst in this initial screening.
Efeito do armazenamento nas características microbiológicas e físico-químicas do açúcar mascavo
(Universidade Federal de São Carlos, 2023-05-26)
Perez, Carolina da Silva
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Liska, Gilberto Rodrigues
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https://lattes.cnpq.br/2217949943647601
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https://orcid.org/0000-0002-5108-377X
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Verruma-Bernardi, Marta Regina
Microbiological and physicochemical characteristics are determining factors for the quality of raw cane sugar. The objective of this study was to investigate the influence of storage on the microbiological and physicochemical characteristics of brown sugar. The brown sugar samples were of industrial origin and differed in terms of moisture content (%): A=1.69; B=1.96; C=2.00; D=4.13 and particle size, and were stored for 365 days and analyzed every three months. Microbiological parameters were analyzed according to their compliance with national and international regulations, and physicochemical attributes were analyzed using analysis of variance followed by mean test and principal component analysis (PCA). The evaluated microbiological and physicochemical parameters were respectively: total coliforms; Escherichia coli; mesophilic bacteria; molds and yeasts; moisture content; water activity (AW); pH; conductimetric ash content; reducing sugars; Pol; and colorimetric color. The values of total coliforms and Escherichia coli were in compliance with Brazilian legislation. Only one sample of molds and yeasts exceeded the limit proposed by the current national legislation of 102 CFU/g. There was growth of colonies of mesophilic bacteria in all samples, which at certain storage periods were unsatisfactory according to international regulations. During the 365-day storage, there was random variation in moisture content, a tendency of increased water activity in samples C and D, colorimetric color changes, and a slight increase in conductimetric ash content; pH values were lower compared to time zero; reducing sugar levels decreased; Pol levels showed low polarization. Therefore, it is possible to observe that storage influenced most of the microbiological and physicochemical characteristics. However, since there are no reference values for identity and quality standards for this type of sugar, it cannot be stated that the variations in the evaluated parameters compromise the quality of the product. Nonetheless, the efficiency of good manufacturing practices during agro industrial processing and the quality of the raw material are evident.