Navegando por Data de Publicação, começando com "2022-11-18"

Filtrar resultados por ano ou mês

Agora exibindo 1 - 6 de 6

A educação alimentar e nutricional no trabalho de equipe de estratégia de saúde da família: concepções e práticas
(Universidade Federal de São Carlos, 2022-11-18) Martins, Ygor Graciano; Rocha, Sheyla Ribeiro; https://lattes.cnpq.br/4784568943530426; Gozzi, Alana de Paiva Nogueira Fornereto; https://lattes.cnpq.br/0361502737203825; https://lattes.cnpq.br/5723091797533726
Food and nutrition guidance was incorporated into the work of the brazilian health system marking the Ministry of Health's commitment to the food and nutrition of Brazil. The promotion of healthy eating has been evidenced, reaffirming that it is up to health professionals, especially those working in Primary Health Care, to educate the population on the adoption of healthy eating practices. Little is known about tho ocurrence of food and nutrition guidance and Food and Nutrition Education at this level of care. The general objective of this study was to understand the practices of Food and Nutrition Education by different health professionals in Primary Health Care in one city of SP. The qualitative, descriptive and exploratory research had the participation of eight health professionals from a Family Health Strategy. The data were treated based on the thematic content of the interviews and organized into thematic categories. The study findings point to the need for discussions os issues related to Food and Nutrition Education, due to the lack of these practices in the teams work for matrix support, prevention and health promotion of the population assisted.
Estudo dos procedimentos de análise e conexão de um sistema fotovoltaico na rede da CPFL
(Universidade Federal de São Carlos, 2022-11-18) Teles, Rafael Ramos; Silva, Paulo Fernando; https://lattes.cnpq.br/0549628304803628; Barea, Luis Alberto Mijam; https://lattes.cnpq.br/7929868663210908; https://lattes.cnpq.br/7683139779380450
The use of renewable energies, such as solar and wind energy, reduces carbon dioxide emissions into the atmosphere and enables the implementation of distributed microgeneration and minigeneration systems in homes, businesses and industries. However, it is only possible to integrate renewable energy sources with the electrical grid with the use of inverters, which are devices based on power electronics. Thus, this research presents an analysis of the implementation of a photovoltaic system in a commercial establishment, operating as distributed microgeneration. To carry out the analyses, the main agents that regulate the Brazilian electricity sector and the regulations that determine the minimum and mandatory requirements for connecting power inverters to the electrical distribution network were studied. To understand the operation of the photovoltaic generation system, a study was carried out about the equipment that make up the system, such as photovoltaic panels, inverter and bidirectional meter. In order to broaden the understanding of the procedures necessary for the operation of an on-grid system, a case study of the CPFL concessionaire was carried out, applying all the procedures described here, demonstrating a significant reduction in the amount paid for the energy bill of the consumer unit studied. Finally, a comparative study of an informative nature was generated between the CPFL, Light, CEMIG and Celesc distributors, on the documentation required at each stage of the process of connecting the system to the network, demonstrating that the operation of distributed micro and mini-generation is extremely important. importance for advancing the diversification of the national electricity matrix.
Mentoras de professoras iniciantes da educação infantil: enfrentando e superando tensões no processo de ensinar a ensinar
(Universidade Federal de São Carlos, 2022-11-18) Barros, Bruna Cury de; Reali, Aline Maria de Medeiros Rodrigues; https://lattes.cnpq.br/3250195451890332; https://lattes.cnpq.br/0808795524597177
We sought to analyze the processes of tension evidenced in three experienced teachers, Early Childhood Education (ECE) mentors of beginning teachers (BT), participants. Tension can be characterized as opposition of ideas, feelings and actions and decision-making and actions of confrontations to these circumstances. These processes occurred from situations that provoked doubts, dilemmas, disagreements, conflicts, and difficulties throughout their participation in the Hybrid Mentoring Program (HMP). The HMP (2017-2020) - the investigative context of this study - refers to a constructive-collaborative research-intervention, funded by FAPESP, coordinated by UFSCar researchers. This program helped Basic Education BT (ECE, Elementary Education, Youth and Adult Education) with up to five years of experience, through mentoring actions, to deal with the typical difficulties of this career stage. The support offered to the PIs happened through hybrid formative actions developed by experienced teachers, autonomous and prepared to be mentors. Then, they participated in an initial and continued training throughout their performance in PHM. The theoretical basis of this thesis dialogues with notions related to learning and professional development, third space, professional conversations, mentoring (Mizukami, Reali, Zeichner, Loughran, Vaillant, Marcelo, among others) and with the Bioecological Theory of Human Development (BTHD), discussed by Bronfenbrenner (1996) and Tudge (2008). Data was provided by written narratives of the three ECE mentors recorded in diaries, activities in the Virtual Learning Environment (VLE), conversations on WhatsApp, online questionnaire and research reports, as well as individual interviews conducted during their activities in the HMP. From the identification of the dilemmas, conflicts, doubts, difficulties, etc. faced by each of the participants, episodes were selected regarding i) tensions experienced during the initial training process of the mentors in the HMP; ii) individual tensions arising from the lack of mastery over certain knowledge, divergence of pedagogical conception between mentor-BT and acting in the pandemic of COVID-19; iii) similar tensions faced by the three mentors associated with the difficulty of identifying the demands of the BT and in planning mentoring practices related to the NATIONAL COMMON CURRICULUM BASE and in the context of the pandemic of COVID-19. The results indicate that the tensions experienced by the ECE mentors arose as a result of the peculiar characteristics of the HMP, the very nature of the act of teaching to teach, issues arising from mentoring practices, and even aspects more external to the program. In all these cases, we observed the mobilization of the mentors - who put themselves in the position of learners - so that, while they sought alternatives to help their BT, they were also involved in a process of recognizing and overcoming their difficulties. Despite the discomfort caused by the tensions, the mentors were resilient in facing these situations and building new learning about being a mentor. The formative activities offered in the HMP as well as the collaborative exchanges with the mentor, educators and researchers favored the mentors' professional development.
As elites acadêmicas na ciência climática brasileira
(Universidade Federal de São Carlos, 2022-11-18) Antonio, Luiz Felipe Alves; Andrade, Thales Haddad Novaes de; https://lattes.cnpq.br/5882842888759363; https://lattes.cnpq.br/1808020925604443
This dissertation analyzes the scientific elites involved in the production of knowledge regarding meteorological and climate information in Brazil. To this do so, it was necessary a prior study of some currents of thought around the theme of the elites, a theme that is among the main issues discussed in the science since the end of the 19th century, and throughout the 20th century. Among the main currents of thoughts, stands out Pierre Bourdieu, since his work, together logic of the prosopographic methodology, provided the necessary means for a analysis of the Center for Weather Forecasting and Climate Studies (CPTEC), which is linked to national institute of space research (INPE). To this do so, it was necessary to present the origin, formation and trajectory of some of its main exponents, in order to bring this discussion to the academic debate with the aim of responding to how was the emergence of scientific careers in this group; as well as what the impacts of consolidation of an "elite" in the field of Brazilian climate science. We will investigate the characteristics of the CPTEC team in the period 2001-2010 with the objective of understand what are the essential leaders in the process of training and consolidation of the group of symbolically dominant researchers responsible for the production of data and information essential for monitoring, advancing and controlling studies Brazilian climate change
Electrochemical desalination using polyglycerol activated carbon: electrode, cell, and process development
(Universidade Federal de São Carlos, 2022-11-18) Juchen, Patricia Trevisani; Ruotolo, Luís Augusto Martins; https://lattes.cnpq.br/6167735734348703; https://lattes.cnpq.br/2447516579663597
Capacitive deionization (CDI) has emerged as a promising electrochemical technology for the desalination of brackish water, which promotes the electrosorption of ions in the electrical double layer. In recent years, there has been significant growth in studies on capacitive deionization, however, challenging issues still persist, such as obtaining low-cost carbon electrodes with high electrosorption capacity and stability over electrosorption/desorption cycles, as well as a better understanding of how the hydrodynamic aspects influence mass transfer and process efficiency. In this sense, the objective of this thesis was to develop an activated carbon electrode using a polymer obtained from residual glycerol from biodiesel as a precursor and to investigate the effects of the architecture of different CDI cells on electrochemical desalination. The results showed that it was possible to prepare electrodes using residual glycerol polymer as the precursor. In electrosorption experiments, the PGAC electrode demonstrated stability over 50 cycles, applying voltages of 1.1 V and 1.2 V, in a symmetrical configuration, desirable behavior to allow the process for long periods of operation. However, when applying 1.4 V, the positive electrode potential exceeded the limit potential of anodic stability, causing oxidation reactions at the anode and, consequently, loss of desalination capacity. The asymmetric and membrane configurations (MCDI) were also analyzed in order to improve the salt adsorption capacity (SAC). Using an asymmetric configuration, it was possible to minimize the deleterious effect of co-ion repulsion, since there was an increase in charge efficiency (QE) from 62.9% to 88.4%. In the MCDI configuration, the application of ion exchange membranes led to a significant increase in the values of SAC and QE. This improvement is attributed to the presence of co-ions repelled from the micropores and which are prevented from migrating into the solution due to the presence of the membrane. These co-ions then accumulate in the macropores of the material, constituting an additional force of attraction of the counter-ions, since electroneutrality must be maintained. These results showed that the PGAC electrode, in addition to being a low-cost material, proved to be promising for brackish water desalination by capacitive deionization. In sequence, the comparison of the different CDI cells showed that the cell architectures influenced the mass transfer and kinetics of the process. For a thinner electrode, the flow-by cell (FBC) showed better desalination performance compared to the flow-through cell (FTC), due to the lower resistance to charging of the electrical double layer and higher diffusion in the micropores. However, for a thicker electrode a notable reduction of SAC occurred in the FBC, a result attributed to the lower mass transfer from the electrode surface to the adsorption active sites. This effect did not occur when using FTC, because in this architecture the convective transport of mass in the interstitial pores promotes a faster kinetics when compared to FBC. Considering these results, a percolation flow cell (PFC) was proposed, to combine the beneficial aspects of previously investigated cell architectures. With the flow of electrolyte percolating through the electrode and being perpendicular to the electric field, the PFC allowed the increase of optimized salt removal (OSR), due to faster mass transfer promoted by the permeation of the electrolyte through the carbon film of the electrode. An investigation of the particle size used in the preparation of the electrode showed that this size directly influences the mass transfer phenomenon, being possible to increase the kinetics constants with smaller particles, but they promoted a lower SAC due to changes in textural properties. These results showed that there is an ideal particle size to obtain a high OSR value. Finally, galvanostatic and quasi-single-pass mode analysis were analyzed using PFC. The results showed that higher flux flow and current density accelerate the kinetics, but quickly reach the cutting potential, affecting the OSR. Therefore, the operating conditions that showed to be more effective to obtain the highest OSR value were 7 ml min-1 and 1 mA cm-2, highlighting the importance of simultaneously analyzing SAC value and cycle time.
Desenvolvimento de um compósito polimérico de Poli (adipato-co-tereftalato de butileno) (PBAT) e Carbon Nitrite Dots para fabricação de substratos flexíveis e biodegradáveis para aplicação eletroquímica
(Universidade Federal de São Carlos, 2022-11-18) Maciel, Cristiane Carla; Ferreira, Marystela; https://lattes.cnpq.br/8846411014725252; https://lattes.cnpq.br/4368023496052703