International Journal for Innovation Education and Research (IJIER)
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Methods of Finite Differences in the Domain of Time Applied to the Equation of Heat Biotransfer in Ocular Tissues
No full textThis article presents a methodology for two-dimensional modeling of the human eye to analyze the heat transfer in biological tissues, in this case, ocular tissues. The technique used was the finite differences method in the time domain. With a proposal for a numerical simulation of the problem, see that this type of work aims to promote the development of tools that help detect errors in biomedical engineering. Several medical procedures, including surgical ones that use laser, whose main limiting factor is the increase in temperature in living tissue, a fact that can cause irreversible damage, even evaporating. For example, refractive eye surgery using a laser. The simulation is intended to calculate the temperature gradient to guide the physician more precisely before an intervention. An example of this is certain types of inoperable tumors that can be irradiated with laser sources. Their function is to cause a rise in local temperature to destroy cancer cells without thermal damage to the healthy region
RELATIONSHIP BETWEEN ENVIRONMENTAL CATASTROPHES AND BRAZILIAN TECHNOLOGICAL PRODUCTION
No full textWaste from mining is the responsibility of companies and tailings and derived waste becomes one of the biggest problems, making it necessary to implement public risk management policies. The objective of this study is to identify impacts of environmental catastrophes on Brazilian technological production. Scientific publications deposited in the SCOPUS Database and patents deposited in the patent office of the National Institute of Intellectual Property (INPI) were considered the universe of this study. The analyzed sample consisted of scientific publications resulting from research with the keywords 'iron ore', 'tailings' and 'dams'. A search was also carried out in the INPI database using the keywords 'RESIDUO* AND MINERA*. The nonlinear regression of the number of deposits shows two curves. The first is ascending and the second descending. Curves in the years 1998 and 2015 are identified. The first identifies a trend towards an increase in the number of deposits and the second represents the stabilization of this growth in the number of deposits. The search in the SCOPUS database resulted in 223 publications. The year 2007 was identified as the moment of deflection of the curve with an increase in the number of publications. It is possible to affirm that Brazil is a center that generates science in the area of Dams and Iron Ore Tailings. On the other hand, it is not possible to identify any reflex of technological production from environmental catastrophes events. This suggests that Brazil is a country that does/finances science and does not produce technology in this area
INSERTION OF THE COPPER IUD (TCu 380A) IN THE IMMEDIATE POSTPARTUM: A STUDY IN YOUNG WOMEN IN THE BRAZILIAN AMAZON
No full textObjective: To evaluate the insertion of the Copper IUD (TCu 380A) in young women, side effects and users' degree of satisfaction with the method. The research site is the municipal public maternity hospital of Porto Velho, located in the state of Rondônia, in the Brazilian Amazon. Methodology: Standardized questionnaire with the following variables: Identification and address; Weight; PA; Consultation: Puerperal (3) months, (6) months, (9) months, (others); Pathological antecedents; Obstetric History: Gesta, Pará, Abt; Date of IUD insertion; Delivery type; Side Effects: (Pelvic pain), (Dysmenorrhea), (Dyspaurenia), (Hypermenorrhea), (Metrorrhea), (Anamia), (Other); Ultrasonography: Conduct. Results: In the year 2021, 1,463 parturients aged 15 to 25 years were seen at the maternity hospital, of these 982 (67.12%) had vaginal deliveries and 481 (32.88%) had cesarean deliveries). Of the 982 women who had vaginal deliveries, 312 (31.77%) underwent IUD insertion in the immediate postpartum (postplacental) period. Of the 982 women in the age group who had cesarean deliveries, 161 (33.47%) opted for IUD insertion after placental delivery. From the ultrasound examinations, it was observed that the IUDs were poorly positioned in 114 (11.60%) of those inserted in the vaginal puerperium and in 19 (4.57%) of those inserted by cesarean section after placental delivery. The main side effect in the first days of use, still in the puerperium, was pelvic pain in 20.36% of all IUDs inserted postpartum (vaginal and cesarean), in the third month the most common complaint was dysmenorrhea in 24 .47%. In the sixth month of use, dysmenorrhea (22%) was predominant, followed by hypermenorrhea (19.75%), and after the sixth month of use, dysmenorrhea (12.30%) was followed by hypermenorrhea (10.66%) as the most reported complaints. Conclusion: In regions such as the Brazilian Amazon, with high rates of unintended pregnancy in young women and consequently with complications of short interpregnancy intervals, long-term contraceptive methods (LARCs) offered in the puerperium are an option to be considered to reduce maternal mortality due to pregnancy
Metadata analysis of systematic literature reviews on academic spin-offs: an overview of reviews
No full textBesides assuming the role of teaching, research, and extension, the university, has expanded the boundaries of scientific knowledge to promote a business ecosystem. The business-related activities can be driven by the leadership of students with an entrepreneurial capacity, based on the technology transfer produced by the academic research and generated by companies that somehow have been idealized or had the active participation of the faculty members and the technology under their control. This model of companies, named in the literature as academic spin-off, has increased the attention of researchers at two main points: i. understanding the phenomenon itself and ii. contribute to identifying the lack of the process, whether related to the support structure or capacitation of faculty members to develop the entrepreneurial activities, as well as in understanding the commercialization of knowledge as technology transfer. In this context, the present work provided a metadata analysis of systematic literature reviews on the academic spin-off, mapping the knowledge on the subject and searching for reviews that cover the technology transfer models to study the viability of protecting the academic intellectual property as a product. Methodology: the data used in this study were retrieved from the database Web of Science and revised according to the protocol Extension for Scoping Reviews (PRISMA-ScR). The bibliometric analysis of metadata was conducted in RStudio software with the package Bibliometrix and its web interface Biblioshiny. Results: 40 review articles published in peer-reviewed journals from 2006 to 2021 were selected from the initial collection. Then, as result of the bibliometric analysis, it was obtained the data of production indices (main authors, sources, and most cited articles), the evolution of chronological discussion on the subject, and other complementary. Conclusion: it was found indications of studies that discuss technology transfer models and others that examined empiric models in the academic scenario. However, in the selected collection, was not identified any review papers on academic entrepreneurship that were related to the viability of intellectual property as products to be commercialized. Also, it was identified that the word academic entrepreneurship stands out as the main keyword word to represent the research
Study of The Extrusion and Painting Process of Aluminum Profiles of a Metal-Mechanical Industry Located in the South of Santa Catarina
No full textIn the competitive scenary of the 21st century, organizations need to deal with the reality that in order to obtain an above-average return, it is necessary to be willing to meet high quality standards. This article consists of studying the extrusion and painting processes of an aluminum profiles and frames manufacturer, located in the south of Santa Catarina, in order to analyze and measure, through the use of quality tools and statistical software, faults and errors arising from this process. In this context, the research methodology adopted for this study is characterized as exploratory-descriptive, with a quantitative character. The methodological procedure started with an analysis and mapping of the extrusion and painting processes of aluminum profiles, seeking and interpreting information relevant to the study. Then the data was collected and analyzed, where it was possible to apply the Pareto Diagram and identify the most frequent non-conformities. A statistical analysis was then performed using the IBM Statistical Package for the Social Sciences (SPSS) version 21.0 software, comparing and associating the collected data in order to identify and understand the root causes of the defects that occurred. With the results obtained from the analyzes carried out, it became possible to draw up an action plan, using the 5W2H quality tool, containing suggestions and proposals for improvements, with a focus on reducing the scrap generated from the defects identified in the processes of extrusion and painting of aluminum profiles
Application of a Logit Model for Water well site location in fractured-bedrock aquifers in northeastern Brazil
No full textWells drilling process in fractured-bedrock aquifers is a difficult task. Extreme variations in lithology and structure features, as well productive water zones sited at preferential points make geological and geophysical investigations difficult. To contribute to the understanding of the process of groundwater zones occurrence in fractured-bedrock aquifers, this paper develops a drilling prospective model by using regression analysis, whose parameters were calibrated according to the photogeological and cartographic analysis of 113 drilling points in the states of Rio Grande do Norte, Paraíba, and Ceará. The effectiveness of the resulting model was assessed through a sample of 43 additional drillings, which were carried out aiming at the distribution of water to the communities in the semiarid region of Brazil. The obtained results indicate the model as an important tool in the drilling process, with direct implications on the logistics costs of water well site location and consequent attendance to the population that needs the water
Design of four rotor aircraft with obstacle avoidance
No full textThe system uses TM4C123G as the core of quadrotor autonomous vehicle control, which consists of flight control module, power supply module, motor speed control module, optical flow sensing module, and target tracking identification module. The flight control module includes angle sensor, gyroscope, and TLS1401-LF module. The flight control processes the collected data through the chip (TM4C123G), and processes the data with PID control algorithm, while solving the PWM increment and decrement needed for the corresponding motor, adjusting the motor in time and adjusting the flight attitude. The binocular camera identifies the color of the pole tower and measures the distance, so that the distance between the aircraft and the nearest point of the pole tower is kept within 50±10cm. After detecting the red (green) tower as the center, fly around the tower clockwise (counter) for one week (top view). Finally, the OV7725 camera is used to identify the solid black circle mark of the landing point and land smoothly and accurately in the target area, thus realizing an efficient robot around the barrier
IS THERE GENDER EQUITY IN PRODUCTION ENGINEERING? REPORT OF WOMEN ENGINEERS TRAINED IN THE PERIOD FROM 2011 TO 2018
No full textThis article aims to identify the challenges that women engineers face in their field of work. The main theoretical references are: Silva (1992), Hirata; Kergoat (2007), Carvalho; Casagrande (2011); Carvalho (2008); Casagrande et al. (2004); Lombardi (2006a, 2006b); Cabral; Bazzo (2005); Lime; Souza (2011); among others. It is a qualitative-quantitative research and data were collected through questionnaires. The 69 women who graduated from 2011 to 2018 were invited to participate in the survey. Of these 33 answered the instrument. The data show that women engineers experience gender discrimination, sexism, racism and sexual and moral harassment in their work field. Finally, these women, in 2019, reported cases of gender inequality experienced in the labor market. In this perspective, the study points out the following strategies to fight gender discrimination in the production engineering course: - include publications by renowned engineers in the teaching plans; - discuss with students and professors of the course about gender equity in the labor market
Violence against women: The unique health system and medical conduct
No full textViolence against women is any form of discrimination, aggression or coercion, caused by the simple fact that the victim is a woman and causes physical, psychological, sexual, or moral damage, whether in the public or private sphere. It is a manifestation of historically unequal power relations between genders, which were gradually built and which continue today, showing the importance of knowledge of the actions of the Unified Health System (SUS) that coordinate and guide the conduct of health professionals, especially from the doctor. The present study aims to investigate medical conduct in the care of women victims of violence, SUS actions, and programs, specifically carried out at the Santa Casa de Misericórdia do Pará Foundation. This is a quantitative study and the instrument used was a questionnaire, prepared by the authors. Thirty-three physicians answered the questionnaire, where 97% have already assisted women in situations of violence, 97% know the protocols for the care of women victims of violence, and 67% judge public health actions to support these victims as ineffective. The data allow us to conclude that SUS actions have the potential to have a direct impact in the context of violence against women, if the necessary support is provided to make complaints, in addition to long-term protection and prevention protocols
MICROENTREPRENEUR, WORKER IN BRAZIL AND THE CHALLENGES FOR HEALTH AND QUALITY OF LIFE
No full textIn the current scenario of transformations in the most diverse work activities due to the development and application of technologies, the flexibilization of labor relations, the high level of unemployment and economic uncertainties, there is a simultaneous growth in the number of individual micro-entrepreneurs in Brazil. The individual microentrepreneur personifies the precariousness of work in which health and, as a result, quality of life are compromised. This study analyzed the evolution of the number of micro-entrepreneurs in Brazil from 2010 to 2019 and its correlation with unemployment in the country. The data survey was carried out through the Entrepreneur Portal database and the discussion was based on the literature on worker health. The survey result indicated more than nine million micro-entrepreneurs in 2019. Exposure to precarious working conditions and weakening labor relations are determining factors in the health of workers