Fluminense Federal University Research Articles

Evaluation of Rosuvastatin Solution in Post-Extraction Alveolar Bone Repair: An In Vivo Research Study

Statins have demonstrated positive results in alveolar repair after induced osteoporosis in humans and rats. This study aimed to evaluate the osteogenic potential of rosuvastatin (RSV) solution associated with collagen sponge in post-extraction rat alveoli. An experimental study was carried out at the Fluminense Federal University in 30 Wistar rats (female) randomly distributed into three experimental groups: group I—dental sockets filled with a blood clot (CS); group II—dental sockets filled with collagen sponge (EC); and group III—collagen sponge associated with RSV. Slides stained with hematoxylin and eosin (HE) were used for histomorphometric analysis to evaluate newly formed bone, connective tissue, and biomaterial in the respective groups, comparing them over different periods (7 and 42 days). The Shapiro–Wilk test was used to evaluate the same experimental period, and the Mann–Whitney test was used to compare the different periods between the groups. At 7 days, the clot group showed greater new bone formation (median 23.27; IQR 10.62–4.74) than the sponge group (median 2.25; IQR 3.42–1.53) and RSV group (median 0; IQR 0–0; p = 0.03), respectively. At 42 days, the clot group (median 63.90; IQR 7.54–3.73) showed better results regarding newly formed bone compared to the RSV group (median 26.33; IQR 4.78–2.24; p = 0.003). The present study demonstrated no advantages in the use of RSV in relation to the control group and no statistical difference between groups II and III.

New Histopathological Findings in Scarring Alopecias.

Clinical, dermoscopic, and histological diagnostic criteria may overlap in cases with scarring and nonscarring alopecia, making diagnosis difficult for clinicians and pathologists. New histopathological discoveries indicate that the cutaneous adnexal structural and homeostatic unit made up of the pilosebaceous unit, eccrine sweat gland coils (ESGCs), and dermal white adipose tissue may have a role in hair follicle renewal. To verify the presence of adipose tissue in the dermis at the level of the isthmus, infiltrating the bundles of the arrector pili muscle in biopsies from the scalp of 3 scarring alopecias: frontal fibrosing alopecia (FFA), fibrosing alopecia in a pattern distribution (FAPD), and lichen planopilaris (LPP). We performed a retrospective and descriptive survey of 71 female scalp biopsies from 2016 to 2022 diagnosed at the Dermatopathology Laboratory at Fluminense Federal University of Rio de Janeiro. Two pathologists reviewed and diagnosed the cases correlating pathological features with clinical and dermoscopic findings. The histopathological findings of adipose tissue infiltration in the dermis at the level of the isthmus and in the bundles of the arrector pili muscle, and the displacement of ESGCs were more frequently identified in FFA, followed by FAPD and less frequently found in LPP. According to our research, adipose tissue infiltration in the dermis at the level of the isthmus and in the bundles of the arrector pili muscle, and the displacement of ESGCs were observed in 3 scarring alopecias (FFA, FAPD, and LPP) and seems to be involved in the development of scarring alopecia.

Competencies for the production of comprehensive health care: analysis of the assessment processes in Medicine Internship at Fluminense Federal University

Competencies for the production of comprehensive health care: analysis of the assessment processes in Medicine Internship at Fluminense Federal University

Producing Knowledge (Despite the Storm)

The institutional production of interdisciplinary knowledge very frequently encounters bureaucratic barriers that transform academic life into a steeplechase. Producing interdisciplinary legal knowledge is even more difficult and has been the keynote of the path followed by the Graduate Program in Sociology and Law (PPGSD) of Fluminense Federal University (UFF). This article proposes a revision of its educational path, examining the changes in the research agenda over two decades and its impact on the creation of new university cadres. In the end, the challenge remains the same: to expand the possibilities of insertion of graduates in a dogmatic and disciplinary world, which resists interdisciplinary knowledge.

Measurement of Vertical Profiles of the Atmospheric Surface Layer with Low-Cost Instrumentation on Board a Drone

At mospheric natural disasters can have their damage mitigated if meteorological alerts are disseminated on time. Among the ways to get data related to weather conditions are the use of atmospheric profilers and numerical models. Such resources can be used for studies related to the surface layer, which covers a range from 20 to 200 meters below the low troposphere. In order to make atmospheric experiments achievable, without great financial expenditure, a low-cost atmospheric profiler was developed together with the Laboratory of Monitoring and Numerical Modeling of Climate Systems (LAMMOC) of the Federal Fluminense University (UFF), to be on board a drone and based on prototyping with Arduino, which had as sensors the DHT22 for measuring temperature and relative humidity and the BMP280 for measuring atmospheric pressure. Thus, this profiler was used in an experiment, from which atmospheric vertical profiles were generated and compared with profiles generated by the numerical model Weather Research and Forecasting (WRF) and post-processed by the WRF-Python routines package. As a result, it was noticed that the observed data profiles described a behavior of the surface layer that indicates the occurrence of thermal inversion and change of regime of this layer, from the stable, passing through the neutral, to the unstable. With this, it is evaluated that the method of using this profiler can be applied in several atmospheric studies, such as atmospheric pollution and now casting weather forecast, as well as its potential for use in areas such as operational meteorology and assimilation of data from numerical models shows to be promising.

The conceptions of teacher education of the PIBID Mathematics initiation scholarship students at UFF: a cohesive analysis with the use of CHIC

The research showed the process of training teachers of the Institutional Program for Teaching Initiation Scholarships (PIBID) with the objective of investigating the possible contributions of the implementation process. We tried to answer the following question: What characteristics related to the initial teacher training process can be identified in the implementation of the PIBID of Mathematics by the Fluminense Federal University in the period 2009-2013? A questionnaire was applied to 38 undergraduates, with the aim of analyzing the stages and conceptions of teacher training, identifying characteristics, opinions, expectations. As a methodology, we used the cohesive analysis applied to the discourse, using the CHIC software. In conclusion, it is possible to state that PIBID contributed to teacher training guided by dialogue, by immersion in the heart of the school, for the construction of professional identity through the exchange of experiences, the experience of concrete cases, the dialectical relationship between theory and practice and reflection on practice.

Perception of future production engineers on organizational ethics and social responsibility

The concepts of ethics and morals play a fundamental role in everyday interactions, establishing guidelines on what is considered correct or incorrect, as well as guiding decision-making in the face of different situations. organizational. In this context, understanding the perception of students who will soon be in the market, being able to develop organizational policies based on ethical principles, as well as promoting social responsibility practices, becomes extremely important. This study aims to investigate the perception of Production Engineering students at the Petrópolis School of Engineering at the Federal Fluminense University about ethics, morals and social responsibility as a backdrop for organizational management. For this, the PRESOR scale, developed by Singhapakdi et al. (1996 and 2001), in order to measure the students' perception levels on the theme. At the end of this work, results were obtained that allowed a more in-depth analysis of the relationship between students and their ethical perceptions, contributing to a better understanding of the pre-established limits in this academic context and that can contribute to future professional development.

Peripheral ulcerative keratitis as the first and only manifestation of MPO-ANCA-associated vasculitis.

Journal Article Accepted manuscript Peripheral ulcerative keratitis as the first and only manifestation of MPO-ANCA-associated vasculitis Get access Ana Paula Couto, Ana Paula Couto Department of Ophthalmology, Hospital Universitario Antonio Pedro, Fluminense Federal University (UFF), Niteroi, Brazil Contact Information: Ana Paula Couto, 132 Desembargador Izidro Street, apt 504A, Rio de Janeiro, R.J., 20521–160, Brazil. Email address: anapaulacouto1@hotmail.com. https://orcid.org/0000-0002-7796-7688 Search for other works by this author on: Oxford Academic PubMed Google Scholar Verônica Mello, Verônica Mello Department of Clinical Medicine, Hospital Universitario Gaffrée e Guinle, Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil Search for other works by this author on: Oxford Academic PubMed Google Scholar Gabriel Conde Motta, Gabriel Conde Motta Department of Ophthalmology, Hospital Universitario Antonio Pedro, Fluminense Federal University (UFF), Niteroi, Brazil Search for other works by this author on: Oxford Academic PubMed Google Scholar Bruno F Fernandes, Bruno F Fernandes I2 Vision, San Diego, CA, United States Search for other works by this author on: Oxford Academic PubMed Google Scholar Carolina Vieira Carolina Vieira Department of Ophthalmology, Hospital Universitario Antonio Pedro, Fluminense Federal University (UFF), Niteroi, Brazil Search for other works by this author on: Oxford Academic PubMed Google Scholar Rheumatology, kead218, https://doi.org/10.1093/rheumatology/kead218 Published: 19 May 2023 Article history Received: 02 March 2023 Revision received: 18 April 2023 Accepted: 03 May 2023 Published: 19 May 2023

Reviewer Acknowledgements for Environmental Management and Sustainable Development, Vol. 12 No. 1

Environmental Management and Sustainable Development (EMSD) would like to thank the following reviewers for reviewing manuscripts from November 1, 2022, to May 1, 2023. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Many authors, regardless of whether EMSD publishes their work, appreciate the helpful feedback provided by the reviewers. Macrothink Institute appreciates the following reviewers’ rigorous and conscientious efforts for this journal. Each of the reviewers listed below returned at least one review during this period. Christiane do Nascimento Monte, Universidade Federal Fluminense, BrazilChuck Chuan Ng, Xiamen University Malaysia, MalaysiaDilek Kaya-Akyüzlü, Ankara University, TurkeyElham Mohamed, National Research Centre, EgyptFarahdilah Ghazali, University of Malaysia Terengganu, MalaysiaFarhaoui Mohamed, National Office of Electricity and Drinking Water, MoroccoGandhi Escajadillo Toledo, Peruvian University of Applied Sciences, PeruHayssam Mohamed Ali, King Saud University, EgyptJoão Fernando Pereira Gomes, Instituto Superior de Engenharia de Lisboa, PortugueseManuel Mendoza-Carranza, El Colegio de la Frontera Sur (ECOSUR), MexicoMohammad Aghababaei, Washington State University, USAMona M. Amin Abdel-Fatah, National Research Center in Egypt, EgyptOylum Gokkurt Baki, Sinop University, TurkeySyakir Amir Ab. Rahman, International Islamic University Malaysia, MalaysiaTaina da Silva Rocha Paz, Federal Fluminense University, Brazil

Standardization of reference values of hepatic and renal biochemical markers in rats (Rattus novergicus) Wistar lineage

The biochemical parameters of laboratory animals may vary between different lineages and strains of a given species, being influenced by the microenvironment and macroenvironment of the vivarium for breeding and maintenance, as well as particularities of the method and commercial kit used in the analysis. This study aimed to determine the reference values for the hepatic and renal parameters of Unib-line Wistar rats. Forty healthy male Wistar rats were studied, weighing an average of 200 to 300g, from the Laboratory Animal Center of Federal Fluminense University. Quantitative biochemical analysis of the liver profile (AST, ALT, alkaline phosphatase, GT gamma, total proteins, albumin, total bilirubin, and direct bilirubin) and renal markers (urea and creatinine) was performed. The research data established liver and kidney analyte values that were compared with those described in the literature. From the standardization of reference values, it will be possible to optimize the time of experiments with Wistar rats as well as to reduce the number of animals used in the research.

Essential Oils of Rosmarinus officinalis and Eucalyptus globulus Cultivated in the Mountainous Region of the State of Rio de Janeiro (Brazil): Chemical Profile and Antileishmanial Activity

Pharmacognosy Research,2023,15,2,297-306.DOI:10.5530/pres.15.2.032Published:February 2023Type:Original Article Authors:Rogéria Cristina Zauli, Tarcísio Martins Santos, Alberto Wisniewski Jr, Patrícia Xander, and Aislan Cristina Rheder Fagundes Pascoal Author(s) affiliations:Rogéria Cristina Zauli1, 2, 3, Tarcísio Martins Santos4, Alberto Wisniewski Jr4, Patrícia Xander1, 3, Aislan Cristina Rheder Fagundes Pascoal5,* 1Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Laboratory of Cellular Immunology and Biochemistry of Fungi and Protozoa, Federal University of São Paulo, Diadema, São Paulo, BRAZIL. 2Technical Support Center for Teaching, Research and Extension (NATEPE), Federal University of São Paulo, Campus Diadema, Diadema, São Paulo, BRAZIL. 3Biology-Chemistry Graduate Program, Federal University of São Paulo, Campus Diadema, Diadema, São Paulo, BRAZIL. 4Department of Chemistry, Federal University of Sergipe, Av. Marechal Rondon, São Cristóvão, SE, BRAZIL 5Department of Basic Sciences, Multi-user Biomedical Research Laboratory, Fluminense Federal University (ISNF-UFF), Nova Friburgo, Rio de Janeiro, BRAZIL. Abstract:The present study aimed to characterize the chemical profile of essential oils of Rosmarinus officinalis (EORo) and Eucalyptus globulus (EOEg) cultivated in the mountainous region of the state of Rio de Janeiro, Brazil, and to verify the leishmanicidal potential, as well as to determine the cytotoxicity in vitro in mammalian cells. EORo had α-Pinene (37.99%), Cineol (21.48%), D-Verbenone (5.78%) and Limonene (3.28%) as major constituents. The EOEg had as major components Cineol (75.52%), Limonene (8.82%) and o-Cymeno (7.81%). The EOEg had a lower IC50 value of 14.03 ± 2.08 μg/mL, while EORo had an IC50 value of 31.12 ± 4.6 μg/mL, both during the 24-hr exposure period. In the 48-hr period, the IC50 value was almost twice as high with rosemary oil, while in eucalyptus oil there was no significant difference when exposed in this period. The selectivity of EOs was demonstrated in murine cells, showing almost 30 times less toxic to the cell than to the parasite. It can be concluded that this is a pioneering study on the potential of these essential oils against the leishmania parasite. Furthermore, the low toxicity effect on the host cell encourages future studies and in vivo applications. Keywords:cytotoxicity, E. globulus, Essential oil, Leishmanicidal, R. officinalisView:PDF (359.76 KB)

Programa de Gestão e Desempenho: ponte para uberização no serviço público federal brasileiro

Abstract Objective: to analyze the introduction of the Performance and Management Program (PMP) at the Federal Fluminense University (UFF). Methods: the PMP began to be implemented at the UFF in May 2022. This essay presents the established changes and discusses their relationship with the process of “uberization”. Results: the guidelines established by the PMP, as well as the initial experience of its implementation at UFF, indicate a strong influence of the ideas guiding the phenomenon of “uberization” of work. By bringing about profound changes in the organization and control of work activities, the PMP also has the potential to impact the workers’ health, notably increasing the difficulty in mapping and controlling risks in work environments, which become more decentralized. It can also have detrimental effects on mental health, caused by a management model based on strict process control and goal fulfillment. Conclusions: the program instituted at UFF shares many similarities with the model of “uberized” work management, which has been emerging as a trend in contemporary capitalism, affecting workers unevenly. The change in the management model of work activities imposed by the program suggests potential effects on the workers’ physical and mental health..

Diagnóstico parasitológico de amostras fecais de cães domésticos provenientes do município de Niterói, Rio de Janeiro, Brasil

ABSTRACT From 2015 to 2021 the prevalence of parasites was evaluated in fecal samples of dogs from the municipality of Niterói, RJ. The samples were examined at the Laboratory of Diagnostic Support in Parasitic Diseases (LADDP) of the Veterinary School at the Federal Fluminense University (UFF), using centrifugal flotation, sedimentation and mini-FLOTAC techniques. Of the 1,037 samples examined, 30.6% (318/1,037) showed positive results for some parasitic infections, of which 80.5% (256/318) were positive for only one species of parasite and 19.5% (62/318) for multiple infections. Parasitism by Ancylostoma caninum was the most prevalent, with 39% (124/318), followed by Giardia sp., 16% (51/318); Toxocara canis, 14.5% (46/318); Trichuris vulpis, 8.5% (27/318); Cystoisospora canis, 8.5% (27/318); Dipylidium caninum, 7.9% (25/318); and Cryptosporidium sp., 5.6% (18/318). The parasitological diagnosis of dogs in urban areas is the best choice to evaluate the efficacy of control measures adopted for parasitic infections, including those with zoonotic importance.

Decolonial movements in rural teacher's training: resistance to the segregated knowledge pattern

The year of 2020 is the milestone of a decade since the implementation of the Rural Education Policy, also known as Procampo, which was enacted through Decree n. 7.352, from November 4, 2010. This policy, as victory of social movements, is changing university spacetimes, territorialities and the daily lives of rural communities. Therefore, it summarizes the counter-hegemonic struggle for different educational rights, for the emancipation of teaching practices and for schools and communities’ autonomy. Based on such elements, the aim of the present article is to present autobiographical narratives according to which students and teachers rescue different decolonial movements observed in academic training as the very outcome of experiences built on Interdisciplinary Degree in Rural Education at Fluminense Federal University (UFF). The narratives highlight that Rural Education breaks up with the Eurocentric view of knowledge in order to acknowledge the richness of different knowledge fields, identities, and students’ historical and epistemic place with a colonial scene that denies differences to the detriment of submission practices. In order to face such reality, the narratives point out that the Rural Education proposes decolonial movements – as prevailing feature in teachers’ training – focused on coping with, as well as on resisting and repairing historical violence imposed by the coloniality.

Reviewer Acknowledgements for Environmental Management and Sustainable Development, Vol. 11 No. 4

Environmental Management and Sustainable Development (EMSD) would like to thank the following reviewers for reviewing manuscripts from August 1, 2022, to November 1, 2022. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Many authors, regardless of whether EMSD publishes their work, appreciate the helpful feedback provided by the reviewers. Macrothink Institute appreciates the following reviewers’ rigorous and conscientious efforts for this journal. Each of the reviewers listed below returned at least one review during this period. Dilek Kaya-Akyüzlü, Ankara University, TurkeyFarhaoui Mohamed, National Office of Electricity and Drinking Water, MoroccoGandhi Escajadillo Toledo, The National Technological University of South Lima, PeruHayssam Mohamed Ali, King Saud University, EgyptJoão Fernando Pereira Gomes, Instituto Superior de Engenharia de Lisboa, PortugueseManuel Mendoza-Carranza, El Colegio de la Frontera Sur (ECOSUR), MexicoMohammad Aghababaei, Washington State University, USASyakir Amir Ab. Rahman, International Islamic University Malaysia, MalaysiaTaina da Silva Rocha Paz, Federal Fluminense University, Brazil

Reviewer Acknowledgements for Environmental Management and Sustainable Development, Vol. 11 No. 3

Environmental Management and Sustainable Development (EMSD) would like to thank the following reviewers for reviewing manuscripts from May 1, 2022, to August 1, 2022. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Many authors, regardless of whether EMSD publishes their work, appreciate the helpful feedback provided by the reviewers. Macrothink Institute appreciates the following reviewers’ rigorous and conscientious efforts for this journal. Each of the reviewers listed below returned at least one review during this period. Dilek Kaya-Akyüzlü, Ankara University, TurkeyHayssam Mohamed Ali, King Saud University, EgyptJoão Fernando Pereira Gomes, Instituto Superior de Engenharia de Lisboa, PortugueseManuel Mendoza-Carranza, El Colegio de la Frontera Sur (ECOSUR), MexicoMohammad Aghababaei, Washington State University, USASyakir Amir Ab. Rahman, International Islamic University Malaysia, MalaysiaTaina da Silva Rocha Paz, Federal Fluminense University, Brazil

Reviewer Acknowledgements for Environmental Management and Sustainable Development, Vol. 11 No. 2

Environmental Management and Sustainable Development (EMSD) would like to thank the following reviewers for reviewing manuscripts from February 1, 2022, to May 1, 2022. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Many authors, regardless of whether EMSD publishes their work, appreciate the helpful feedback provided by the reviewers. Macrothink Institute appreciates the following reviewers’ rigorous and conscientious efforts for this journal. Each of the reviewers listed below returned at least one review during this period. Dilek Kaya-Akyüzlü, Ankara University, TurkeyHayssam Mohamed Ali, King Saud University, EgyptJoão Fernando Pereira Gomes, Instituto Superior de Engenharia de Lisboa, PortugueseManuel Mendoza-Carranza, El Colegio de la Frontera Sur (ECOSUR), MexicoMohammad Aghababaei, Washington State University, USASyakir Amir Ab. Rahman, International Islamic University Malaysia, MalaysiaTaina da Silva Rocha Paz, Federal Fluminense University, Brazil

Gisele Birman Tonietto, a Coordinator of Development Projects and a Dynamic Researcher also Dedicated to the Dissemination of Science, kindly spoke to BrJAC

Prof. Dr. Gisele Birman Tonietto is a professor in the Department of Chemistry at the Pontifical Catholic University of Rio de Janeiro and Coordinator of Development Projects at the Analytical Center of the same university. Prof. Tonietto holds a degree in Industrial Chemistry from the Fluminense Federal University (1989), a master's degree in Chemistry from the Pontifical Catholic University of Rio de Janeiro (1995), and a Ph.D. in Chemistry from the Pontifical Catholic University of Rio de Janeiro (2006). Her research focuses on analytical chemistry, working mainly on ion chromatography, microwaves, arsenic and selenium speciation, and isotopic analysis of carbon, hydrogen and oxygen. Prof. Tonietto is also dedicated to the dissemination of science, developing digital content and promoting interviews, round tables, and training in various areas of chemistry. She received the University Merit Diploma from PUC-Rio in 2021 and is a member of the Technical Chamber of Oil and Gas of the Regional Council of Chemistry of Rio de Janeiro.

Reviewer Acknowledgements for Environmental Management and Sustainable Development, Vol. 11 No. 1

Environmental Management and Sustainable Development (EMSD) would like to thank the following reviewers for reviewing manuscripts from November 1, 2021, to February 1, 2022. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Many authors, regardless of whether EMSD publishes their work, appreciate the helpful feedback provided by the reviewers. Macrothink Institute appreciates the following reviewers’ rigorous and conscientious efforts for this journal. Each of the reviewers listed below returned at least one review during this period. Christiane do Nascimento Monte, Universidade Federal Fluminense, BrazilChuck Chuan Ng, Xiamen University Malaysia, MalaysiaDastun Gabriel Msuya, Sokoine University Of Agriculture, TanzaniaDilek Kaya-Akyüzlü, Ankara University, TurkeyGiacomo Chiesa, Politecnico di Torino, ItalyHayssam Mohamed Ali, King Saud University, EgyptJoão Fernando Pereira Gomes, Instituto Superior de Engenharia de Lisboa, PortugueseSyakir Amir Ab. Rahman, International Islamic University Malaysia, MalaysiaTaina da Silva Rocha Paz, Federal Fluminense University, Brazil

ESCIFI: An Energy Saving Mechanism for WLANs Based on Machine Learning

As wireless local area networks grow in size to provide access to users, power consumption becomes an important issue. Power savings in a large-scale Wi-Fi network, with low impact to user service, is undoubtedly desired. In this work, we propose and evaluate the eSCIFI energy saving mechanism for Wireless Local Area Networks (WLANs). eSCIFI is an energy saving mechanism that uses machine learning algorithms as occupancy demand estimators. The eSCIFI mechanism is designed to cope with a broader range of WLANs, which includes Wi-Fi networks such as the Fluminense Federal University (UFF) SCIFI network. The eSCIFI can cope with WLANs that cannot acquire data in a real time manner and/or possess a limited CPU power. The eSCIFI design also includes two clustering algorithms, named cSCIFI and cSCIFI+, that help to guarantee the network’s coverage. eSCIFI uses those network clusters and machine learning predictions as input features to an energy state decision algorithm that then decides which Access Points (AP) can be switched off during the day. To evaluate eSCIFI performance, we conducted several trace-driven simulations comparing the eSCIFI mechanism using both clustering algorithms with other energy saving mechanisms found in the literature using the UFF SCIFI network traces. The results showed that eSCIFI mechanism using the cSCIFI+ clustering algorithm achieves the best performance and that it can save up to 64.32% of the UFF SCIFI network energy without affecting the user coverage.