Omphaloplasty based on an isosceles triangle with double fixation in abdominoplasty

Introduction: In conventional abdominoplasty, the creation of a new umbilical scar is challenging. Several surgical techniques and approaches have previously been described and applied, but not always with satisfactory results. The objective is to demonstrate the applicability and satisfaction with omphaloplasty based on an isosceles triangle with double fixation in abdominoplasty. Methods: The study included 97 female patients aged between 25 and 65 years. All underwent classic abdominal dermolipectomy with moderate abdominal liposuction of the entire anterior abdomen and flanks by the same surgeon and were evaluated at 90, 180, and 360 days postoperatively. Results: Patients were satisfied with the umbilicus in most cases (92.8%). Some umbilical scars had contracted (3.1%) and others appeared unsightly (4.1%). No necrosis was observed. Conclusion: This technique was effective and easy to perform, with satisfactory umbilical scar aesthetic outcomes in abdominal dermolipectomy

Narcissism and helplessness: some considerations about interpersonal relationships today

Este ensaio objetiva problematizar o fenômeno do narcisismo na atualidade, partindo da hipótese de que as relações interpessoais se configuram pelo desamparo em sua dimensão traumática, e não como abertura à alteridade. Isso se daria assim porque, no atual cenário social, as relações humanas tendem a não oferecer apoio e suporte alteritário para a transformação e o desenvolvimento do sujeito, pois o coloca diante de três ameaças desagregadoras: o vazio solitário, a invasão do outro e a impotência. Na ausência de relações de amparo, o outro aparece como ameaça diante da qual o narcisismo advém como possibilidade de defesa e prevalece em sua forma de narcisismo regenerador.This essay aims to discuss the phenomenon of narcissism today, starting from the hypothesis that interpersonal relationships are configured by helplessness in its traumatic dimension, and not as an opening to alterity. This would be so because, in the current social scenario, human relationships tend to lack help and alteritarian support for subjects’ transformation and development, posing three disruptive threats to them: lonely emptiness, invasion of the other and impotence. In the absence of supportive relationships, the other appears as a threat against which narcissism emerges as a possibility of defense, prevailing in the form of regenerating narcissism

Efeito do número de ciclos térmicos na microinfiltração de restaurações de resina composta

Thermocycling simulates, in vitro, thermal changes that occur in the oral cavity. The aim of this study was to evaluate the influence of the number of cycles on microleakage. Class V cavities (1.5 mm deep, 3 mm in height and 3 mm in width) were prepared in bovine teeth, restored with a Single Bond/Z250 restorative system (3M/ESPE) and then divided into five groups of ten teeth each: group 1 was not thermocycled (control group), and groups 2, 3, 4 and 5 were thermocycled 500, 1,000, 2,500 and 5,000 times, respectively (5º-55º ± 2ºC, 15 s dwell time). The teeth were immersed in 0.5% basic fuchsin aqueous solution for 24 h, sectioned and the sections with the highest degree of microleakage were selected, scanned and the extent of dye penetration was measured by the ImageTool program. The results submitted to one-way ANOVA showed no significant differences between the groups (p >; 0.05). The averages of microleakage values in millimeters were: group 1 (3.92); group 2 (3.13); group 3 (4.48); group 4 (4.33) and group 5 (3.42). Thus, it was concluded that there is no relation between the increase of the number of cycles and the increase in microleakage.A ciclagem térmica tem por objetivo simular, in vitro, as mudanças térmicas intra-orais que ocorrem clinicamente. Sendo o seu efeito bastante discutido, o presente trabalho tem como objetivo avaliar a relação da ciclagem térmica e o número de ciclos na infiltração marginal. Foram confeccionadas cavidades classe V com dimensões de 3 mm de altura, 3 mm de largura e 1,5 mm de profundidade, em dentes bovinos. Os dentes foram restaurados com o sistema Single Bond/Z250 (3M/ESPE) e, então, divididos em 5 grupos de 10 dentes cada: grupo 1 (controle) sem ciclagem; grupos 2, 3, 4 e 5 com 500, 1.000, 2.500 e 5.000 ciclos, respectivamente (5º-55º ± 2ºC, 15 segundos por banho). A seguir, os dentes foram seccionados e analisados em microscópio com 100 X de aumento para a escolha da fatia mais infiltrada, que foi escaneada e quantificada pelo programa ImageTool. Os dados submetidos ao teste ANOVA a um critério não apresentaram diferença significante (p >; 0,05), resultando em valores médios de infiltração em milímetros: grupo 1 (3,92), grupo 2 (3,13), grupo 3 (4,48), grupo 4 (4,33) e grupo 5 (3,42). A análise dos dados permitiu concluir que não há relação entre o aumento do número de ciclos e o aumento da infiltração marginal

Patient safety: changes in hemoglobin and serum iron after liposuction and/or abdominoplasty

Introduction: Liposuction is the second commonest procedure performed in Brazil. The scope for liposuction has broadened with advances in the technique, with better equipment, and increased safety in the surgical environment. However, there are concerns about patient safety. Safety committees have made recommendations on various aspects of the procedure including infiltration, anesthesia, patient selection, and aspirated volume. The Brazilian Society of Plastic Surgery and the Federal Council of Medicine have also determined the parameters for aspiration safety volumes, and for the aspiration of body surface. However, supporting literature for the recommendations is scarce. The objective is to evaluate changes in hemoglobin, serum iron, and total protein levels in the peri-operative days (between 7 and 10 days), in addition to its impact in patients. Methods: We performed a prospective study, with patients submitted to either liposuction alone, or in conjunction with abdominal dermolipectomy for esthetic indications. We evaluated 30 patients, collecting their demographic data, weight, body mass index, hemoglobin, serum iron, and total protein levels in both, the pre-operative period, and between 7 and 10 post-operative days. Results: The fall in hemoglobin levels were between 2 and 6 g /dL, with an average of 3.1 g /dL between 7 and 10 post-operative days . A minimum hemoglobin value of 7.8 g/dL was noted between 7 and 10 days after surgery, while the mean reduction of serum iron was found to be 44.87 g/dL. Conclusion: The reduction in hemoglobin levels was responsible for the clinical symptoms. Iron supplementation was required in the immediate post-operative period

Flower-visiting social wasps and plants interaction: Network pattern and environmental complexity

Network analysis as a tool for ecological interactions studies has been widely used since last decade. However, there are few studies on the factors that shape network patterns in communities. In this sense, we compared the topological properties of the interaction network between flower-visiting social wasps and plants in two distinct phytophysiognomies in a Brazilian savanna (Riparian Forest and Rocky Grassland). Results showed that the landscapes differed in species richness and composition, and also the interaction networks between wasps and plants had different patterns. The network was more complex in the Riparian Forest, with a larger number of species and individuals and a greater amount of connections between them. The network specialization degree was more generalist in the Riparian Forest than in the Rocky Grassland. This result was corroborated by means of the nestedness index. In both networks was found asymmetry, with a large number of wasps per plant species. In general aspects, most wasps had low niche amplitude, visiting from one to three plant species. Our results suggest that differences in structural complexity of the environment directly influence the structure of the interaction network between flower-visiting social wasps and plants

As redes sociais como veículo para combater os efeitos nefastos do covid-19: um estudo exploratório no contexto turístico português

As redes sociais assume, cada vez mais, um papel determinante na comunicação das empresas, dos territórios e das marcas. Verificando-se uma importância crescente no mundo empresarial (e, em específico, no setor do turismo) em estar presente no ambiente online, torna-se relevante perceber que tipo de atuações apresentam melhores resultados nos consumidores (i.e. turistas). Por outro lado, o início do ano 2020 foi fortemente marcado pelo novo coronavírus (covid-19) e os efeitos (negativos) na generalidade das indústrias e setores de atividade. Em específico, o turismo é um dos principais motores da economia nacional (i.e. Portugal) que foi fortemente afetado pela pandemia e pelas fragilidades ao nível da saúde pública. Por conseguinte, o presente manuscrito pretende compreender de que forma as redes sociais desempenham um papel importante no combate aos efeitos negativos do covid-19 em contextos de turismo. Serão apresentados alguns casos ilustrativos do contexto português, relativamente à comunicação em contextos online, como boas práticas (i.e. benchmarking) por parte dos territórios e destinos turísticos em Portugal. No final, serão apresentadas algumas limitações do estudo e serão apresentadas linhas de investigação para o futuro. Numa perspetiva interdisciplinar, o presente manuscrito apresenta inputs para o turismo (i.e. gestão de territórios) e para o marketing (i.e. comunicação online)

Análise fitoquímica e atividades antimicrobiana e antioxidante das folhas de Henriettea succosa (Aubl.) DC

Henriettea succosa is a tree species consumed in abundance by birds, however, there is no report on its phytochemical profile and biological activity. This study performed the phytochemical screening and the antimicrobial and antioxidant potential of H. succosa leaves. The hexane (Hex), ethyl acetate (AcOEt) and methanol (MeOH) extracts of the leaves were evaluated for chemical composition by Thin Layer Chromatography and spectrophotometric analysis; the antimicrobial activity was determined by the Minimum Inhibitory Concentration (MIC) and Minimum Microbicide Concentration (MMC); antioxidant activity was determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging, determination of the reducing power and the phosphomolybdenum complex reduction assay. The photoprotor action of the extracts was also evaluated. The results showed a higher content of phenolic compounds (444.08 ± 0.020 mg EAG/g) and tannins (414.37 ± 0.16 mg EAG/g) in the MeOH extract, which was effective against Staphylococcus aureus and Serratia marcescens, with MIC of 1 mg/ ml and CMM of 2 mg/ml. The MIC and MMC of AcOEt for Micrococcus luteus was 1 mg/mL, this was also considered the minimum concentration necessary for the Hex extract to act on the S. aureus strain. The MeOH extract showed greater antioxidant activity by the DPPH (79.09%) and reducing power (327.2 ± 0.00 mg EAA/g) methods, while the AcOEt extract showed greater activity by the phosphomolybdenum method (40.5%). However, none of the extracts showed a photoprotective effect against UV radiation. In summary, this study revealed that the leaves of H. succosa have secondary metabolites with bactericidal potential, in addition to antioxidant action.Henriettea succosa é uma espécie arbórea consumida em abundância por pássaros, no entanto, não há relatos sobre seu perfil fitoquímico e atividade biológica. Este estudo realizou a triagem fitoquímica e analisou o potencial antimicrobiano e antioxidante das folhas de H. succosa. Os extratos hexano (Hex), acetato de etila (AcOEt) e metanólico (MeOH) foram avaliados quanto a composição química por Cromatografia em Camada Delgada e análise espectrofotométrica; a atividade antimicrobiana foi determinada pela Concentração Inibitória Mínima (CIM) e Concentração Mínima Microbicida (CMM); a atividade antioxidante foi determinada usando-se os ensaios de sequestro do radical 2,2-difenil-1-picrilhidrazil (DPPH), de determinação do poder redutor e de redução do complexo fosfomolibdênio. Foi avaliada também a ação fotoprotetora dos extratos. Os resultados mostraram maior teor de compostos fenólicos (444,08 ± 0,020 mg EAG/g) e taninos (414,37 ± 0,16 mg EAG/g) no extrato MeOH, sendo este eficaz contra Staphylococcus aureus e Serratia marcescens, com CIM de 1 mg/mL e CMM de 2 mg/mL. O CIM e CMM do AcOEt para Micrococcus luteus foi 1 mg/mL, essa também foi considerada a concentração mínima necessária para o extrato Hex agir sobre a cepa de S. aureus. O extrato MeOH apresentou maior atividade antioxidante pelos métodos de DPPH (79,09%) e poder redutor (327,2 ± 0,00 mg EAA/g), enquanto o extrato AcOEt apresentou maior atividade por meio do método fosfomolibdênio (40,5%). No entanto, nenhum dos extratos apresentaram efeito fotoprotetor contra radiação UV.  Em suma, este estudo revelou que as folhas de H. succosa possuem metabólitos secundários com potencial bactericida, além de ação antioxidante

Artificial Neural Networks to Estimate Nutrient Use Efficiency in Eucalypt

Background: Nutrient use efficiency (NUE) is the basis for fertilizer recommendations in eucalypt plantations in Brazil needs to be calculate individually for each nutrient and spacing. The possibility of superior performance to conventional models of regression and interpolation can be obtained by Artificial Neural Networks (ANN) enabling its use for solve complex problems. The ANN are being used in environmental science, but still studies on forest nutrition are poor. Objective: To evaluate the efficiency of NUE estimation in the Eucalyptus stem, under different spacing using ANN. Results: The nonlinear activation functions in the hidden layer generating local receptive fields were observed in all networks. Specific leaf area contributed to capture the biological realism and increased the ability of generalization of MLP's networks. Its generalization capability and connectivity allowed use only one network to perform the estimation of the stem's NUE.Conclusion: The modeling by ANN using multilayer perceptron architecture is a suitable alternative, accurate and biologically realistic to estimate the NUE by macronutrient, used in different spacings

Modernization of the Environmental Lighting System of a Manaus City Commercial Business

This research aimed to present a brightness control system through the Arduino prototype that will adjust the brightness in the workplace according to the Brazilian norms according to the activities performed and through the literature review point its advantages and benefits to the company. To this end, the following research methodologies were adopted: case study, literature review, quantitative and qualitative analysis. Where illuminance samples were collected in a work environment where they are outside the standard of NBR 8995-1, a fact that has been negatively influencing workers performance and company results, a high level of energy consumption was also detected energy. Thus, based on the literature review on the subject, and the results obtained in the inspection of the illuminance of the work environment, it was possible to present a prototype on the Arduino platform that solved the problem of lighting in the work environment, regarding the quantitative results of the work. Research has proven that with the installation of the prototype in the workplace the energy reduction can vary from 7% to 20% in addition to the reduction of occupational disease costs, and the qualitative results show numerous benefits of adequate lighting in the workplace. minus three spheres: physical; cognitive and operational