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A study of SnO2 nanowire FET devices: ambipolarity effect induced by UV Light exposure and their use as UV sensors
(Universidade Federal de São Carlos, 2021-03-18)
Arantes, Adryelle do Nascimento
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Chiquito, Adenilson José
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https://lattes.cnpq.br/7087360072774314
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https://lattes.cnpq.br/6444614628132115
In this work, SnO2 nanowires (NW) were grown by the Vapor-Liquid-Solid (VLS) method and used to build single NW FET devices. As-grown samples went through structural and morphological analysis and seven single NW devices were built, with a back-gated FET architecture, by direct photolithography. SnO2 NWs grown by VLS method presented the desired tetragonal structure and monocrystalline character, inspected by XRD and HRTEM techniques. In addition, the as-grown samples morphology of a NW with lengths of tens of micrometers and cross-section mostly displaying rectangular geometry were assured through SEM images. The device fabrication process by direct photolithography was proven to be efficient to build the back-gated FET architecture devices with great electrical contacts quality. Single SnO2NWFET’s transport properties were explored, where on/off ratio, mobility and carrier density parameters were extracted, resulting in values around 105, lower than 0.1 cm2/V and in the order of 1019/cm3, respectively. Schottky barrier heights were estimated, considering the gate bias as grounded and room temperature, and Φ_Bn values between 0.41 and 0.75 eV were found. Afterwards, different conditions were analyzed: the device (1) under positive gate bias (V_G>0) and no applied source/drain bias (V_DS=0); (2) V_DS>0 and V_G>0; (3) V_DS<0 and V_G<0 and (4) V_DS<0 , V_G<0 but under UV illumination. Regarding the latter, all devices presented UV induced ambipolary effect, where on/off states ratio with values of the same order were obtained and ranged from 1.1 to about 19.3. A simple band model to explain the observed behavior, i.e., describe how both types of carriers can contribute to the final current depending on the biasing was proposed. Ambipolarity is one of those effects that may direct its use for specific purposes, where a controllable separated unipolar mode can be achieved in one single device. Furthermore, the devices were tested as UV sensors and presented satisfactory results: as a UV photodetector, the acquired I_on⁄I_off ratio was found to be of the order of 〖10〗^4 for all devices investigated. In addition, rise time was found to range 0.56 s < τ_r< 0.63 s, whereas the decay time 0.54 s < τ_d< 0.75 s. According to those results, one can assure their huge feasibility as a UV sensor.
Contribuição dos estudos semióticos para a catalogação de histórias em quadrinhos
(Universidade Federal de São Carlos, 2021-03-18)
Pavarina, Etefania Cristina
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Zafalon, Zaira Regina
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https://lattes.cnpq.br/1584935790390793
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https://lattes.cnpq.br/0906483851923523
This research has proposed to study the contribution of semiotics to the cataloging of comic books. The comics stand out as an object of research, considering the alignment of questions and visual and verbal values, which are intrinsic to them, as well as the process of defining the context of the scenario involved in the story as important elements for the retrieval of information. Thus, the general objective is to evaluate the contribution of semiotics in the cataloging of comic books. The research, of an applied nature, has presented a qualitative approach and exploratory objectives. Systematic mapping of literature was adopted as a method for bibliographic research, and the Content Analysis was used to analyze the data. As a result, it is understood that semiotics and semiology might contribute to the cataloging of comic books, in theoretical-conceptual and methodological aspects. In this perspective, cataloging has been seen as a semiotic process that permeates all stages of Organization and Representation of Information in comics, from the representation process (thematic and descriptive) to the search and recovery by users. It is observed that the semiotic narrative, discursive and cultural currents might contribute to the cataloging of comic books, mainly in the processes of reading, description, and representation.
Inovação social para o envelhecimento ativo: iniciativas em Portugal e no município de São Carlos -SP
(Universidade Federal de São Carlos, 2021-03-18)
Mello, Kemilly Bianca de
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Pedro, Wilson José Alves
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https://lattes.cnpq.br/8135701448186851
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https://lattes.cnpq.br/8614808357673501
The idea of social innovation (SI) stands out today, but when linked to active aging, there is a very large gap in knowledge and practice, especially in Brazil. In the face of this unexplored theme, this research aims to identify and analize SI initiatives focused on active aging in the city of São Carlos-SP and north region of Portugal. This research used a theoretical-empirical methodology and a multi-case study aimed at identifying SI initiatives linked to active aging and quality of life. In addition, a study of the state of the art of SI and active aging was carried out to understand and update itself on the productions developed. The project referring to this research was approved by the Research Ethics Committee - CEP / UFSCar (Opinion nº 3,350,844). The results and discussions point to the existence of well-consolidated SI initiatives for active aging in Portugal, mainly due to the support for this demand in the country and on the European continent. In São Carlos, the initiatives identified, despite not calling themselves SI, aim to meet the demands associated with aging in an innovative way. In addition, this study shows the relevance of research on the theme of social innovation for active aging in the Brazilian context, since there is a lack of knowledge on this theme and there are no public policies for social innovation in Brazil. The final considerations, on the other hand, present reflections and possibilities to expand this theme for its diffusion and incentive to social transformations.
O livro didático do professor na pré-escola: uma análise das propostas pedagógicas a partir das políticas públicas educacionais
(Universidade Federal de São Carlos, 2021-03-18)
Silva, Caroline Lurdes
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Souza, Geraldo Tadeu
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https://lattes.cnpq.br/3516168011612531
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https://lattes.cnpq.br/4854690633680864
This monograph has the general objective of developing a critical look at the pedagogical proposals suggested for the preschool through the use of the teacher's textbooks. From the documental point of view, we studied the public educational policies Opinion CNE / CEB nº 20/2009, Resolution CNE / CEB nº 5/2009, National Curricular Guidelines for Early Childhood Education (DCNEI) and Common National Curricular Base (BNCC), from of which it was possible to understand the guidelines for teaching practices in the first stage of Basic Education and to problematize the role that the teacher and the child need to assume in the educational process during early childhood education. To think about the presence of the textbook in Early Childhood Education, we explored the National Book and Didactic Material Program (PNLD) through the edition of PNLD 2019, which selected teacher textbooks aimed at pre-school educators and teachers. Based on this assumption, pedagogical proposals analyzed by the didactic work Pé de brincadeira (CORDI, 2018) are analyzed, in view of the legal documents and their guidelines for the curricular organization in early childhood education. As a result of this research, we built a critical view of the possibilities that the textbook object can bring to the pre-school teacher as a source of continuing education and as an inspiring resource for pedagogical practices in the interaction with young children, enriching the teaching process-learning in early childhood education.
Dados de autoridade de artistas da música: estudo do Virtual International Authority File (VIAF) e das diretrizes Resource Description and Access (RDA)
(Universidade Federal de São Carlos, 2021-03-19)
Santos, Amanda Azevedo dos
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Arakaki, Ana Carolina Simionato
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https://lattes.cnpq.br/9896600626524397
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https://lattes.cnpq.br/6369048677495394
With technological advances, daily tasks have been modified, especially the activities that streamline, interact, and relate us to the platforms, applications and webservices that enable the production of information. Given this advance, it is also seen great challenges such as the difficulty ofaccessing, using and reusing data and information that are published on the Web. In this cenario, several professionals seek an improvement to the Web and improve the user experience in this environment and a representation of information in an appropriate and efficient way. Related to the context of music, is seen a great flow of information, about music, history, and related people, such as music artists who have great cultural appeal. However, viewing the information of these artists may not be in accordance with what the user wants or does not allow the user to find other artists or informational resources related to it. For this reason, the problem of this research is to investigate how resource description and access (RDA) and virtual international authority file (VIAF) help in publishing authority data for music artists? Thus, the general objective of this research is to systematize the guidelines and descriptions presented by VIAF and the RDA for the publication of authority data for music artists. As for methodological procedures, this research is a qualitative, theoretical, and exploratory research that addresses the themes: representation of information, authority data, metadata, metadata patterns, authority data of music artists. The results present the guidelines of resource description and access (RDA) and the Virtual International Authority File (VIAF), initiatives that have addressed the cataloging processes, in addition to the restructuring of catalogs based on the conceptual models of the FR Family andthe IFLA LRM model, as well as the perspective on the relationships between entities and the definition of their attributes. In the context of the representation of music artists and bands (collective entity), the use of these guidelines helps in the control and definition of authority and an exhaustiveness of the relationships between each authority. When analyzing RDA guidelines, guidelines were verified to describe the attributes of entities and their relationships, all in a practical and flexible way. VIAF, in turn, raises the issue of sharing the records of people and collective entities. Thus, the RDA and VIAF collaborated positively in the development of examples of description of authority data. It is considered that their contributions of this research are linked to the time savings of a user, due to the creation of access points for a recovery of authority in a more adequate andefficient way, in addition, with a record that presents correct information directly and with basis, the user in addition to recovering what needs, recognizes and finds other artists of music who at some point related.
Dog Hero, tutores e pets: antropomorfismo animal e mobilidades contemporâneas
(Universidade Federal de São Carlos, 2021-03-19)
Barros, Lucas Benegas
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Santos, Mateus Augusto dos
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Ferragi, Cesar Alves
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https://lattes.cnpq.br/8059661338196579
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https://lattes.cnpq.br/5281603246522503
This dissertation summarizes the elements that put on evidence the attenuation of human-animal anthropomorphic relationship due to accentuated mobilities in contemporary society. These phenomenons are discussed in order to analyze and understand how a socio-affective relationship between owners and pets can impact when an individual person wishes to make tourism. In order to achieve this goal, a bibliographic review was made on the subjects of animal anthropomorphism, hospitality, the pet market and mobilities. A case was built, following the content analysis process, in order to understand how the DogHero platform works. It is a startup with an alternative mindset capable of offering a resolution between the fluidity and influidity paradigm of individuals who wants to travel around the world and also be good pet owners. In addiction, a questionnaire was elaborated and disseminated through the google forms platform. The main objective was to understand and correlate the bibliography study and the case with the demand of contemporary dog owners. The conclusion of the study implies the paradox created by anthropomorphism and mobilities impacts directly on how pet owners make tourism and, despite a mindset that approaches the studied elements and prioritizes connection between people to generate trust, the DogHero platform is not recognized by the majority of the owners interviewed on this research. This may put on evidence there are a lot more study subjects to explore about pet market latencies surrounding risk and trust.
Análise do desempenho do gráfico de controle do desvio do nominal em pequenos lotes de produção
(Universidade Federal de São Carlos, 2021-03-19)
Meira, Márcio Ricardo Morelli de
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Oprime, Pedro Carlos
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https://lattes.cnpq.br/9291517431456908
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https://lattes.cnpq.br/6165017917939826
Since originally proposed by Shewhart in the 1920s, control charts are widely used by manufacturing companies to monitor and control production processes. The purpose of the control charts is to detect special causes so that corrective actions are taken, whenever necessary, ensuring stability and capacity to the process. Over the years, production systems have changed. The concept of lean manufacturing has gained more space and the use of Shewhart control charts in these environments has been questioned. Specific methods were developed from there, due to the possibility of fundamental assumptions violation and unavailability of data for an accurate parameters estimation. Among the main specific methods, there is the deviation from nominal control chart. However, Montgomery (2014) highlights some essential aspects, such as, for example, the influence of process variation on its performance. This work studies the effect of parameters estimation and the influence of process variation on the deviation from nominal control chart performance through the Average Run Length (ARL) method and proposes some adjustments on the control limits so that its use is optimized in small production batches. For this, the research method used was modeling and computer simulation. The results found validated the propositions presented by the literature, verifying that the control charts built with estimated parameters, instead of known ones, present a lower performance than expected. There was a significant influence of the process variation on the performance of the control chart. However, it has also been demonstrated that small adjustments on the control limits can make it enable on lean manufacturing environments.
Obtenção de heteroestruturas SnO2/Nb2O5 e aplicação em sistemas de interesse ambiental
(Universidade Federal de São Carlos, 2021-03-19)
Rodrigues, Thaís Aparecida
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Mendonça, Vagner Romito de
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https://lattes.cnpq.br/4270375873948823
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https://lattes.cnpq.br/3891783906198938
The population increase has caused several environmental problems such as contamination of aquatic bodies by organic compounds and the emission of CO2 in the atmosphere. An alternative to mitigate these impacts is Heterogeneous Photocatalysis, which is based in the use of irradiated semiconductors to oxidize organic compounds by the generation of highly oxidizing radicals, such as •OH and O2•-, or yet to reduce CO2, converting it in higher value-added products. However, a limitation is the high electron/hole (e-/h+) pair recombination rate. One way to reduce this problem is the coupling of two semiconductors in an interface in common, forming heterostructures, which allows the charge separation, prolonging their lifetime. Nb2O5 is a promising material in several fields due to its properties, including in photocatalytic processes. Additionally, it is of national interest since it can be obtained from Niobium Ammoniacal Oxalate, a byproduct from mining process. SnO2 also has physical and chemical properties suitable for applications in environmental systems. However, its energy bands do not favor its direct application in heterogeneous photocatalysis. On the other hand, the junction with Nb2O5 presents an adequate band structure for Type II heterostructure formation. This heterostructure type enables the migration of the h+ to a semiconductor, while the e- accumulates in the another, increasing the lifetime these photogenerated charge. In this work, several synthesis variables, such as precursors, synthesis temperature and time, were studied in a process based on hydrothermal treatment. The samples were characterized by XRD, Raman Spectroscopy, FTIR, DRS, SEM-EDS and SEM-FEG, N2 Fisisorção e Zeta potential. Besides that, the samples were used in different processes, such as photodegradation of organics pollutants in water, removal of contaminants via adsorption and CO2 photoreduction. The results demonstrated that the attempt to obtain Nb2O5/SnO2 heterostructures was successful, since heterostructured materials presented higher performance in different processes, when compared to isolated materials, showing the heterostructure versatility, which can be used as a single platform for the remediation of different problems.
Aproximações entre humanidades digitais e organização do conhecimento
(Universidade Federal de São Carlos, 2021-03-19)
Andrade, Laura Mariane de
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Dal'Evedove, Paula Regina
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https://lattes.cnpq.br/1170937498266968
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https://lattes.cnpq.br/3971375597734790
In the last decades, a new field of research has emerged and has been consolidated, namely the Digital Humanities that, in the integration of traditional Human Sciences in digital environments, determine their particularities by renewing the humanistic praxis. Due to their transdisciplinarity character, debates involving Digital Humanities in Information Science have been increasingly stimulated, as they can contribute to the resources understanding and appropriation, making both areas interrelated under an emerging theme for Information Science, ideally in Knowledge Organization. In order to identify how studies in the Knowledge Organization universe incorporate digital technologies added to the humanities, the purpose is to present a study on scientific configuration of Knowledge Organization that works with the Digital Humanities from Science of Information, more specifically (1) identifying the presence of Digital Humanities in Information Science and their approach to themes of Knowledge Organization; (2) rescuing the Knowledge Organization as an interdisciplinary field of knowledge and às an investigative space for issues related to content in the digital environment representation; and (3) analyzing the scenario presented by international scientific papers with the help of Iramuteq software and how the most consistent studies in Knowledge Organization reveal the Digital Humanities absorption. For that, we resort to bibliographic research, collection, application of the Iramuteq software to obtain textual analysis in 96 papers abstracts collected from international databases with scope of Digital Humanities and Knowledge Organization, and, finally, a qualitative analysis of 25 papers from one of the classes identified by the software closest to the research proposal. The analysis reveals the terminological insertion of Digital Humanities in discussions inherent to Knowledge Organization is not scarce, however such researchers find it difficult to theorize, discuss and appropriate epistemological domains of Knowledge Organization and Digital Humanities. We conclude that initiatives consistency that link Digital Humanities to the object of investigation of information scientists seems to be a consensus for appropriation by the Knowledge Organization and establishment of Digital Humanities in their context, especially in a society increasingly mediated by digital.
Produção e caracterização de nanoestruturas de carbono por PECVD
(Universidade Federal de São Carlos, 2021-03-19)
Almeida, Larissa Solano de
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Rossino, Luciana Sgarbi
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https://lattes.cnpq.br/0139027055418391
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https://lattes.cnpq.br/6673871313645316
In recent decades, studies and discoveries related to carbon nanostructures have been intensified, mentioning carbon nanotubes, graphene and their derivatives. These structures have unique physical and chemical properties, attributed to their structures, and can be applied in different areas. In the area of biomedicine, carbon nanostructures are highlighted for their biocompatibility with the human body. Amorphous carbon films have great potential to be applied in implant coating, as graphene and its derivatives also have such potential. However, conventional synthesis methods require high temperature, reaching 1000° C. Thus, the plasma-assisted chemical vapor deposition (PECVD) method has been explored to synthesize carbon nanostructures, due to relatively large-scale production and at low treatment temperature. The objective of this work is the production and characterization of carbon nanostructures by the PECVD technique with a DC-pulsed source, using substrates of copper, nickel, titanium and stainless steel 304. The growth of carbon nanostructures was carried out through the use of CH4 precursors and H2 using oxide films of substrates as catalyst, studying the influence of stress on the formation of the catalyst and the influence of the addition of argon and total gas flow on the growth of carbon nanostructures. The techniques for the characterization of the formed nanostructures were X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electrochemical measurements. The results obtained proved to be promising for the production of carbon nanostructures by PECVD, which technique favored the growth of graphene, carbon nanotube and DLC films on oxidized substrates as a function of treatment parameters at temperatures below the conventional one. Argon was shown to be necessary to obtain crystalline structures, such as graphene and carbon nanotubes. The graphene produced had 2 to 5 layers and the carbon nanotubes have multiple walls. The materials obtained presented good quality and could be used in several areas. Thus, the PECVD technique using pulsed DC source was effective in obtaining characteristic structures of graphene, carbon nanotube and amorphous carbon at low temperature, obtained according to the treatment parameters.
Competência em informação na era da pós-verdade: a (in)formação na graduação em biblioteconomia e ciência da informação da UFSCar
(Universidade Federal de São Carlos, 2021-03-19)
Dias, Fernando Brito da Costa
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Furnival, Ariadne Chloe Mary
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https://lattes.cnpq.br/1291482506649810
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https://lattes.cnpq.br/1041904674820886
The terms disinformation and fake news are used to denote false information or rumors that are mostly published on social networks, which often aim to manipulate public opinion or defame something or someone. This scenario increases in tandem with the ease of producing information on the web. Thus, the present study seeks to relate the topic of disinformation, fake news and information literacy - topics studied in Information Science - to Higher Education. Discussions about information literacy address the user's ability to recognise the need for certain information and have the necessary skills to locate, evaluate and use it in order to meet their need. This research is of a descriptive-exploratory nature as a way of identifying content related to the topic of information literacy in the curriculum of the undergraduate course in Library and Information Science at the Federal University of São Carlos and verifying whether such content contributes to reducing the sharing of disinformation and fake news by students. For the structuring of the research, a bibliographical survey of scientific publications on the subject was carried out, using the subjects ‘information literacy’, ‘post-truth’, ‘disinformation’, ‘fake news’ and ‘agnotology’. For data collection, a questionnaire was applied virtually to students in the first and fourth years of the undergraduate course. The data were analysed using a qualitative and quantitative approach in order to identify the level of information literacy of students from the questions answered based on indicator two of standard three of the Information Literacy Competency Standards for Higher Education of the Association of College and Research Libraries (ACRL), a division of the American Library Association. According to indicator two of standard three, an information literate student must be able to master and use initial methods of evaluating information and its sources. After the study, the hypothesis that there are subjects in the course that have content that relate to the development of skills related to information literacy was proven. The identified disciplines are related to the use of ICT; the recognition of how information is developed, manipulated, organised, stored, made available and disseminated; skills related to research techniques and awareness of the ethical and legal use of information. Of the 16 subjects identified, only 6 are offered in the first year of the course, which puts first year students at a disadvantage when compared to those in the fourth year. The disciplines contribute to the development of skills related to the development of information literacy by addressing content related to information literacy. In addition, after analysing the responses to the questionnaire, it was found that first year students are more likely to share misinformation on social networks, since the rate of verification of such content is lower than that of fourth year students, which reinforces the hypothesis that the curriculum of the course tangibly contributes to the development of information literate students.
Mulheres negras e seus universos: comunidade de Vila Bela, terra, conflitos e memórias nos (des)caminhos da identidade étnica: (1960-2018)
(Universidade Federal de São Carlos, 2021-03-19)
Silva, Silviane Ramos Lopes da
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Mancuso, Maria Inês Rauter
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https://lattes.cnpq.br/3208435983286140
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Silvério, Valter Roberto
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https://lattes.cnpq.br/9421231847055027
This research moves to give visibility to the struggle to maintain the spaces, knowledge, and practices of an Afronative community, whose border territory is an area of conflict involving the ethnic-racial issues triggered, especially, by the expansion of the agricultural frontier in the Midwest region driven by national integration policies. Established as the headquarters of the Capitania of Mato Grosso, Vila Bela da Santíssima Trindade becomes a space for Blacks and Natives after the transfer of capital and departure of the elite to Cuiabá in the nineteenth century. With this change, the population that remained in the place constituted new relations and changes in the landscape. Given the return of White people (the “other”) to the city in the 1960s, transformations in the use of the territory and the way of life of residents redefine ethnic and symbolic boundaries, as well as resignification with the spaces. Considering that identity is reconstituted from differences, as fluid and fragmented, the Black women of Vila Bela fraternize with the Chiquitanas, appropriating the legacies left by their ancestors, and constitute the Afrochiquitania to resist the “other” who expropriated their lands and tries to occupy their spaces. In this context of conflicts, oppression, (re)constructions that this research intends to take, to try to understand the dynamics of overcoming the differences and inequalities experienced since the quilombola resistance of Tereza de Benguela, in the eighteenth century, until the contemporaneity in the daily anonymity experienced by the women of Vila Bela. Walking in the female “universe” with their stories and memories seeks to analyze what mechanisms these women use to ensure belonging to the place and reaffirm their ethnic identity.
Impacto do uso de realçador de sabor obtido de subproduto de cogumelo sobre a qualidade de hambúrguer bovino com redução de sódio
(Universidade Federal de São Carlos, 2021-03-22)
França, Fabiana
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Selani, Miriam Mabel
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https://lattes.cnpq.br/4857619853197645
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https://lattes.cnpq.br/7087827996196146
Sodium has essential functions in the body, but its excessive ingestion can cause a series of chronic diseases, such as hypertension and cardiovascular problems. Due to this, the demand for low-salt meat products is increasing. One of the main alternatives to reduce sodium in these products is the use of flavor enhancers. Mushroom is known to be a natural flavor enhancer. During its harvest, part of the stipe is discarded, which could be used to obtain umami compounds. This study aimed to evaluate the impact of sodium reduction and the addition of natural flavor enhancer (RSN) obtained from mushroom stipe on the physicochemical and texture characteristics, as well as to evaluate the free amino acids content and the volatile compounds profile of beef burgers. After obtaining the RSN, it was applied in 2 concentrations in beef burgers with 3 levels of salt reduction, totaling 6 treatments, in addition to the control. The color of raw burgers was not affected by the formulations, whereas cooked burgers did not change their redness, but showed a slight increase in the L* and b* parameters. There was a slight increase in the pH of raw samples with the addition of the umami ingredient, but cooking minimized these differences. Water activity varied slightly between treatments, only for raw burgers. There was no effect of treatments on cooking loss and diameter reduction. The hardness and chewiness had their values reduced with the decrease of salt and increase of umami ingredient, resulting in softer burgers. The addition of RSN to beef burgers increased the content of the free amino acids proline and phenylalanine. The volatile profile of beef burgers showed a slight increase in compounds also found in the RSN, such as some aldehydes, alcohols and sulfur compounds. The results obtained show that the reduction of salt and the addition of a flavor enhancer obtained from shitake stipes is viable for application in beef burger, considering the physicochemical parameters, texture and the profile of free amino acids and volatile compounds, thus emphasizing the opportunity and the potential for the development of healthier burgers.
Manual de experimentos de física utilizando um smartphone
(Universidade Federal de São Carlos, 2021-03-22)
Freitas, Renan Gustavo Beloni
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Brandl, Ana Lúcia
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https://lattes.cnpq.br/3308757619164141
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https://lattes.cnpq.br/6264527062338417
This work aims to propose a physics experiment manual to be used in high school and elementary school, containing four low-cost scripts based on the acquisition of data through different sensors available on smartphones through a free application called Physics Toolbox . Based on the assumptions of David Ausubel's learning theory and how it can be applied in a teaching context based on experimental activities carried out in groups, it is expected that the application of the proposed scripts will bring greater meaning to the concepts covered in comparison with purely theoretical classes. , as well as encourage teachers who use the tools presented to develop their own proposals. Each script was designed to be completed in two classes, within a common classroom, with proposals that fall mainly in the investigative and verification fields. Its content presents, in addition to the methodology of the proposal and class for which it is intended, a brief introduction encompassing the related physics content and the specific sensor that will be used, with each of the manual's scripts being able to be worked independently of the others. The chosen themes are related to the content of Mechanics, Acoustics and Electromagnetism. Due to the impossibility of developing the work in the school environment due to the social distance imposed by the pandemic of COVID-19, the results of the experiments carried out by the author and fellow professors participating in the MNPEF are presented and discussed, together with their impressions related to the development of proposals. The analysis of these results demonstrates a great precision of the data obtained with the smartphone and minimum difficulty of execution, that added to the other functionalities of the employed applicationsuggests excellent possibilities of execution of the proposed experiments inside the school.
Adaptação transcultural do instrumento “The Short Child Occupational Profile” (SCOPE) para a Língua Portuguesa do Brasil
(Universidade Federal de São Carlos, 2021-03-22)
Mazak, Mayara Soler Ramos
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Cid, Maria Fernanda Barboza
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https://lattes.cnpq.br/8595043315867424
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https://lattes.cnpq.br/3589109643577313
Background: The assessment The Short Child Occupational Profile (SCOPE) is a tool developed by American occupational therapists that makes it possible to systematically assess factors that facilitate or restrict participation in the occupations of children and adolescents, and these factors are based on the Model of Human Occupation (MOHO). In Brazil, there are some assessments created by occupational therapists who evaluate the children and adolescents population, however, despite the diversified nature of these assessments, the need for a change in the sense of evaluations is discussed, leaving the strict focus of the disabilities and assuming another configuration, more focused on the analysis of the client's skills and for the environmental variables that support occupational performance, contributing to better possibilities of production of life. In this sense, there is a need for further studies that develop or encourage the use of Occupational Therapy assessments that can assess the occupational participation of children and adolescents in the most different fields of activity of the profession, understanding SCOPE as an appropriate tool to this end. Objective: To carry out the cross-cultural adaptation of the SCOPE to the Portuguese language of Brazil. Method: The present study was developed based on the six steps of the method proposed by Beaton and collaborators (2000) regarding cross-cultural adaptation research, namely: Step 1. Initial translation of the assessment by two different translators; 2. Synthesis: the two translators, together, reached a single version of the assessment; 3. Back-translation: reverse translation done by three translators, the result of which was analyzed and validated by the main author of the original assessment; 4. Committee of Experts: the Portuguese version was analyzed by a committee composed of occupational therapists from different fields of activity who verified whether the translated version reflected the same content as the original version in relation to the equivalences: semantic, idiomatic, experiential and conceptual, and after adjustments, the pre-final version of the assessment was obtained; 5. Pre-Test: through an online interview, the pre-final version of the assessment was presented to 20 participants including family members of children and adolescents accompanied by occupational therapists in a school clinic to assess the understanding of the assessment's phrases ; 6. Final Review: the last step consisted of the analysis of the final report of the cross-cultural adaptation process by the author of the original assessment for the approval of the final version. Results: The translation and back-translation processes showed few discrepancies between the terms, obtaining good resolution between the translators for the elaboration of the synthesis. In relation to the Expert Committee, all suggestions for changes were analyzed and duly incorporated into the pre-final version of the assessment, which in turn, in the Pre-Test stage, presented a good or excellent understanding of the phrases by the participants. Finally, the Brazilian version of SCOPE was approved by the main author of the original. Conclusion: It was successful in the process of cross-cultural adaptation of the assessment for Brazil, currently entitled: Initial Occupational Profile of Children and Adolescents (SCOPE-BRASIL), being able to undergo further studies to obtain psychometric validation measures with the Brazilian population.
Um jogo de tabuleiro envolvendo conceitos de mineralogia no ensino de química
(Universidade Federal de São Carlos, 2021-03-23)
Santos, Karen Ouverney
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Benedetti Filho, Edemar
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https://lattes.cnpq.br/5963704923612696
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https://lattes.cnpq.br/3809541916156428
This paper describes the development and application of the board game "Minerals", aiming at teaching concepts of mineralogy in High School. Once concluded the artistic conception, assembly of pieces, boards and rules definition, the game was submitted to a team of undergraduate students in Chemistry, in order to assess its pedagogical potential, as well as its playfulness, dynamics and playability. Subsequently, the game was introduced to high school students from a state public school, in order to analyze its applicability and effectiveness in the teaching of concepts generally unexplored at this school level. Results showed an excellent acceptance of the game by the students, as well as its contribution to the learning of concepts on an important theme, which is very little explored in Basic Education. Furthermore, the work involved undergraduate students in Chemistry, whom had the opportunity of experiencing the development and application of a playful teaching tool.
Desenvolvimento de dispersões sólidas e membranas baseadas em praziquantel-poli(álcool vinílico) na terapêutica de esquistossomose
(Universidade Federal de São Carlos, 2021-03-23)
Silva, Vanessa Bezerra da
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Silva, Caio Marcio Paranhos da
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https://lattes.cnpq.br/7793686262868668
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https://lattes.cnpq.br/1145646563114694
Schistosomosis is a parasitic disease considered neglected and endemic in 75 countries. It is estimated that 240 million people are infected and 700 to 800 million people are at risk. Despite that, there is no effective vaccine. Therefore, oral medications continue to be used a lot. Praziquantel (PZQ) is the drug mostly used in this case, however it has low solubility in water and is extremely bitter, making it difficult for children between 3 months and 6 years keep the treatment. Solid dispersion (SD) is a very useful pharmaceutical technology to increase dissolution, absorption, bioavailability and, consequently, the efficiency of a drug and also mask flavors. In order to study the interactions between praziquantel (PZQ) and poly(vinyl alcohol) (PVA), SDs and membranes were prepared and characterized in terms of their microstructure, swelling, release and dissolution. The results show that the crystalline structure is not modified with freeze-thaw cycles and the drug is an obstacle to crystals formation. The swelling measurements show that, for membranes, the amount of PZQ does not influence the sample’s swelling. The XRD shows that the position of PZQ’s peaks is in accordance with the diffraction patterns of the racemic form and that the drugs’ peaks overlap the PVA bands. The infrared spectroscopy shows that for membranes it is clear that the more PZQ in the sample, the smaller is the C–H ring bonds movement, suggesting that the interaction between the polymeric matrix and the drug is given through interactions within the rings in addition to the hydrogen bonds. For the DSs, however, the change between the polymer-drug proportions analyzed is not clear. As for the release, the DS with the highest release for all tested pHs is the sample with a 1:2 ratio (PZQ: PVA) and placed in the Turrax at 20,000 rpm, showing that the processing is important.
Participação do óxido nítrico no efeito hipotensivo e vasodilatador induzido pela fotobiomodulação utilizando laser de 660 nm
(Universidade Federal de São Carlos, 2021-03-24)
Buzinari, Tereza Cristina
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Rodrigues, Gerson Jhonatan
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https://lattes.cnpq.br/6725550216586910
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https://lattes.cnpq.br/8950184250539748
Introduction: Photobiomodulation (PBM) is a non-invasive therapeutic modality used to treat several pathologies. Studies indicate that nitric oxide (NO) can be released from endogenous “stocks” by photolysis, favoring the biological effects of NO. Aim: Evaluate whether the application of red laser induces a decrease in blood pressure in spontaneously hypertensive rats (SHR) and whether this effect is dependent on the release of NO stock. Methods: Direct measurement (Basal, Sham and after FBM) of the hemodynamic parameters of hypertensive L-NAME and SHR rats was performed. Rats treated with L-NAME produce less NO and, consequently, less NO stock. A red laser (660 nm) was used; 80 mW; 56 seconds/point (6 points, abdominal region); 4.5 J; 63 J/cm2 per point. Normotensive and L-NAME rats were euthanized by decapitation, and the thoracic aorta was collected dissected for vascular reactivity study. Three laser applications were performed on the same aortic ring: first, after phenylephrine contraction; second, after endothelial integrity testing by acetylcholine; third, after incubation for 30 minutes with the NO donor DETA-NO, PBS or Hydroxicobalamin. The irradiation parameters for vascular reactivity were: red laser (660 nm); 100 mW; 56 seconds; 5.6J; 96 J/cm2. Endothelial cells (HUVEC) were treated with DETA-NO or CuSO4, with subsequent application of PBM (4.5 J) and addition of a selective fluorescent probe for NO (DAF-2 DA). Results: there was a decrease in systolic blood pressure in SHR (mean of 14 mmHg) and an increase in serum NO was detected by chemiluminescent reaction. Hypertensive L-NAME rats did not exhibit a decrease in blood pressure after PBM. PBM promoted vasodilation in the aorta isolated from normotensive rats, and less effect in the aorta of L-NAME rats and the addition of the NO donor, DETA-NO, promoted greater vasodilation by PBM in the aorta of L-NAME rats, however, the addition Hydroxycobalamin has abolished the vasodilator effect of PBM. In endothelial cells, an increase in NO, after PBM, was detected, however with the addition of CuSO4, which catalyzes the decomposition of NO stocks, there was no detection of NO after PBM. Conclusion: Our results demonstrate that, acutely, irradiation with red laser (660 nm) promotes a hypotensive and vasodilation effect through a mechanism that involves the mobilization of NO stock.
As políticas penais e de segurança pública de FHC a Bolsonaro: um estudo sobre rupturas e continuidades na Nova República
(Universidade Federal de São Carlos, 2021-03-24)
Pereira, Jordana Dias
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Sinhoretto, Jacqueline
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https://lattes.cnpq.br/7743699562476490
;
https://lattes.cnpq.br/8555765096768432
This dissertation deals with the production of criminal and public security policies in the New Republic. Through bibliographic review and analysis of biographies, speeches, government intention programs, and normative acts and bills issued by the Federal Executive Branch from 1997 (year in which the National Secretariat of Public Security was formed) to 2020, one can find some elements of continuities and ruptures. The study falls within the sociology of punishment with a focus on the analytical framework created by David Garland. Following his analytical model, it is possible to affirm that from FHC to Temer the answers regarding the question of an increase in crime have a character that is sometimes more reactive, sometimes more assuring. In addition to this, in the period between the aforementioned presidents, to a greater or lesser extent, efforts were made to create instruments for the development of public security policies. This model, however, proved to be limited when analyzing the current experience. In Bolsonaro, one finds a fourth type, the anti-modern response. These dynamics of criminal and public security policy production in Brazil are explained on the one hand, by a more global trend such as Modern Penal Rationality supported also by punitive populism and is marked by the context of neoliberalism; and on the other hand, in the particularities of the country, which are marked by a late - and never concluded - modernization process and low-intensity citizenship.
Boas práticas em laboratório químico
(Universidade Federal de São Carlos, 2021-03-25)
Lins, Aline Obage
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Faez, Roselena
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https://lattes.cnpq.br/0654750186618555
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https://lattes.cnpq.br/8583471973125177
A chemistry laboratory is a place for teaching, research, and extension activities, as well as for industrial use. Regardless of the purpose, the laboratory exhibits particularities that need to be previously known to avoid the occurrence of accidents. In order to recognize the laboratory spaces and to propose preventive safety measures, this work aimed to prepare a questionnaire and a manual of good laboratory practices. Accordingly, we performed a bibliographic review detailing all aspects of a laboratory. Besides, we based our highlights based on the observation of the Laboratory of Polymeric and Biosorbent Materials - Lab-MPB of the Federal University of São Carlos, in order to obtain a basis to elaborate on specific issues in this area. The results will help users to execute their activities with higher safety and efficiency.