Os 200 anos da vinda da família real portuguesa para o Brasil: antecedentes históricos, a abertura dos portos e seu significado e importância

Rogério Duarte Fernandes dos Passos 한국 포르투갈-브라질 학회 2008 포르투갈-브라질 연구 Vol.5 No.1

The present text aims remember the 200 years of the coming of the Portuguese real family for Brazil, the political situation european of the epoch and the consequent opening of the ports while factor of the impulse, sprouting and development of the Brazilian society.

Aquecimento global: um desafio, inclusive para a sua compreensão

Rogério Duarte Fernandes dos Passos 한국 포르투갈-브라질 학회 2009 포르투갈-브라질 연구 Vol.6 No.1

This paper aims to describe some of the arguments that question the anthropogenic causes of global warming, suggesting the analysis of discourse as a tool for understanding of speeches on the theme, and also as a tool of reflection on the pedagogical practice that deals in the classroom.

Questões sobre agricultura no âmbito da Organização Mundial de Comércio (OMC)

( Rogério Duarte Fernandes Dos Passos ) 한국포르투갈-브라질학회 2007 포르투갈-브라질 연구 Vol.4 No.2

This text, objective, in a first time, describe the institutional environment existing in international society after World War II desired the creation of the International Organization of Trade. Do not implementing this, describes itself as the emergence of the GATT Agreement for the international relations of trade, culminating, with the Marrakesh Agreement of 1995, the creation of the World Trade Organization as a specialized agency of the United Nations system. Then, the text describes the rounds of negotiations held under the World Trade Organization, considering the latter - the Doha Round ― which started in 2001 and active until the present day, the formation of blocs emerging-country negotiators - as in the G-20 ― and proposed agreements involving the most diverse agricultural sector, as what became known as the “Triangle of Mandelson”, in allusion to that by Peter Mandelson, European Commissioner trade. Finally, reflecting the ambitions Brazilian - and opposition to them - leading to a possible project overall production of biofuels to replace the matrix from fossil and considering the last WTO panel that judged in favor of Brazil the subsidies North Americans for its production of cotton as incompatible with the policy of world trade, is an overview of the challenges that are imposed on Brazilian agribusiness.

Leukocyte- and platelet-rich fibrin as an adjuvant to the surgical approach for osteoradionecrosis: a case report

Gustavo Maluf,Rogé,rio Jardim Caldas,Eduardo Rodrigues Fregnani,Paulo Sé,rgio da Silva Santos 대한구강악안면외과학회 2020 대한구강악안면외과학회지 Vol.46 No.2

We present a case of osteoradionecrosis treated with leukocyte- and platelet-rich fibrin (LPRF) and surgery and followed up with clinical and tomographic investigations. A 65-year-old woman presented with pain in the posterior region of the right palate. Her medical history included cardiovascular disease and squamous cell carcinoma in the anterior region of the floor of the mouth that had been treated with intensity-modulated radiation therapy. Measurements of isodose curves showed a full dosage of 6,462.6 cGy in the anterior mandibular region, whereas that in the posterior region on the right side of the maxilla reached 5,708.1 cGy. Osteotomy was performed using rotary instruments, and debridement and placement of two LPRF membranes were also carried out. New gum tissue with no bone exposure was noted 14 days postoperatively. Tissue repair was complete, and the patient had no further complaints. During a 39-month follow-up period, the oral mucosa remained intact, and the patient was rehabilitated with a new upper denture. Since there is no consensus regarding the best protocol to treat osteoradionecrosis, LPRF might be an interesting adjuvant to a surgical approach. The use of LPRF is simple and reduces operational costs, time of handling, probability of technical failure, and associated morbidities for patients with osteoradionecrosis.

Nonlinear analysis of service stresses in reinforced concrete sections-closed form solutions

Helena F.M. Barros,Rogério A.F. Martins 사단법인 한국계산역학회 2012 Computers and Concrete, An International Journal Vol.10 No.5

This paper presents an algorithm for the evaluation of stresses in reinforced concrete sections under service loads. The algorithm is applicable to any section defined by polygonal contours and is based on an analytical integration of the stresses. The nonlinear behaviour of concrete is represented by the parabola-rectangle law used in the Eurocode-2 for the ultimate concrete design. An integrated definition of the strains in concrete and steel is possible by the use of Heaviside functions, similarly to what is done for ultimate section design in Barros et al. (2004). Other constitutive equations for the definition of the stresses in the concrete or steel can be easily incorporated into the code. The examples presented consist in the evaluation of resulting axial load and bending moment in an irregular section and in a section in L shape. The results, for service stresses, can also be plotted in terms of design abacus; a rectangular doubly reinforced section is presented as example.

Physical exercise programs at Basic Healthcare Units decrease body fat and improve the functional capacity of women over 50 years old

Fabrício Eduardo Rossi,Anderson Rogério Lecca,Luiz Gustavo Perón Martins,Luciana Sanae Ota Takahashi,Diego Giuliano Destro Christofaro,Luís Alberto Gobbo,Ismael F. Freitas Jr 한국운동재활학회 2017 JER Vol.13 No.3

This study verified the effects of a physical exercise program performed at Basic Healthcare Units on the body composition and functional capacity of women over 50 years old and to compare these variables according to age. Forty-eight women (age, 65.4± 7.3 years) were assessed. The program lasted 20 weeks, and was conducted 2 times per week, 60 min/day. Body mass and height were collected and body mass index (BMI) was calculated. Bioelectrical impedance was used to estimate fat mass and fat free mass. Functional capacities: handgrip test, Timed Up and Go (TUG) test, and Guralnick test were assessment. Weight (68.7± 12.5 [pre]× 66.8± 12.5 [post], P< 0.001), BMI (28.5± 4.1 kg/ m2 [pre]× 27.6± 4.0 kg/m2 [post], P< 0.001), and fat mass (28.4± 7.8 kg [pre]× 26.4± 7.3 kg [post], P< 0.001) were decreased. For functional capacity, handgrip (21.2± 5.8 kg [pre]× 22.9± 6.9 kg [post], P= 0.014), lower limb strength (12.0± 3.0 sec [pre]× 8.5± 2.2 sec [post], P< 0.001), TUG (8.4 ±1.5 sec [pre] ×7.6 ±1.1 se [post], P<0.001) and Guralnik tests (10.6± 1.6 [pre]× 11.8± 0.5 [post], P< 0.001) were improved. 20 weeks of exercise program performed at Basic Healthcare Units decreased body fat and improvement of functional capacity of women over 50 years old and there was difference according to age only on the body composition variables.

Comparison of instrumental methods for color change assessment of Giomer resins

Ferreira Luiza de Almeida Queiroz,Peixoto Rogéli Tibúrcio Ribeiro da Cunha,Magalhães Cláudia Silami de,Sá Tassiana Melo,Yamauti Monica,Jardilino Francisca Daniele Moreira 대한치과보존학회 2022 Restorative Dentistry & Endodontics Vol.47 No.1

Objectives The aim of this study was to compare the color change of the Giomer resin composite (Beautifil-Bulk) by using photographs obtained with a smartphone (iPhone 6S) associated with Adobe Photoshop software (digital method), with the spectrophotometric method (Vita Easyshade) after immersion in different pigment solutions. Materials and Methods Twenty resin composite samples with a diameter of 15.0 mm and thickness of 1.0 mm were confectioned in A2 color (n = 5). Photographs and initial color readings were performed with a smartphone and spectrophotometer, respectively. Then, samples were randomly divided and subjected to cycles of immersion in distilled water (control), açai, Coke, and tomato sauce, 3 times a day, 20 minutes for 7 days. Later, new photographs and color readings were taken. Results The analysis (2-way analysis of variance, Holm-Sidak, p < 0.05) demonstrated no statistical difference (p < 0.005) between the methods in all groups. Similar color changes were observed for all pigment solutions when using the spectrophotometric method. For the digital method, all color changes were clinically unacceptable, with distilled water and tomato sauce similar to each other and with statistical differences (p < 0.005) for Coke and açai. Conclusions Only the tomato sauce produced a color change above the acceptability threshold using both methods of color assessment. The spectrophotometric and digital methods produce different patterns of color change. According to our results, the spectrophotometric method is more recommended in color change assessment. Objectives The aim of this study was to compare the color change of the Giomer resin composite (Beautifil-Bulk) by using photographs obtained with a smartphone (iPhone 6S) associated with Adobe Photoshop software (digital method), with the spectrophotometric method (Vita Easyshade) after immersion in different pigment solutions. Materials and Methods Twenty resin composite samples with a diameter of 15.0 mm and thickness of 1.0 mm were confectioned in A2 color (n = 5). Photographs and initial color readings were performed with a smartphone and spectrophotometer, respectively. Then, samples were randomly divided and subjected to cycles of immersion in distilled water (control), açai, Coke, and tomato sauce, 3 times a day, 20 minutes for 7 days. Later, new photographs and color readings were taken. Results The analysis (2-way analysis of variance, Holm-Sidak, p < 0.05) demonstrated no statistical difference (p < 0.005) between the methods in all groups. Similar color changes were observed for all pigment solutions when using the spectrophotometric method. For the digital method, all color changes were clinically unacceptable, with distilled water and tomato sauce similar to each other and with statistical differences (p < 0.005) for Coke and açai. Conclusions Only the tomato sauce produced a color change above the acceptability threshold using both methods of color assessment. The spectrophotometric and digital methods produce different patterns of color change. According to our results, the spectrophotometric method is more recommended in color change assessment.

Effect of Propionic Acid in the Germination of Rice Genotypes

Mauricio Marini Kopp,Viviane Kopp da Luz,Luciano Carlos da Maia,Rogério Oliveira de Sousa,Antonio Costa de Oliveira 한국작물학회 2008 Journal of crop science and biotechnology Vol.11 No.4

The objective of this work was to evaluate the germination of 12 rice genotypes under propionic acid stress, a phytotoxic compound produced in low drainage soils with high organic matter content. The tests were conducted with the first count of germination (PCG) and germination (G) of the genotypes subjected to 0, 3, 6, and 9 mM propionic acid concentrations. The seeds of each genotype were placed in germitest paper pre-soaked in treatment solutions forming individual bags. The germination was performed at 25 °C and the counts were carried out at 7 (PCG) and 14 days (G). A factorial random block design was performed with four replications of 50 seeds per genotype. Our study revealed that doses up to 9 mM propionic acid in the pre-soaking solution were efficient for genetic variability studies involving the character germination in rice; genetic variability for germination was detected in the collection of rice genotypes when subjected to propionic acid toxic effects. The genotypes Guichow, Dawn, and Toride-1 showed germination stability when subjected to increasing levels of propionic acid, and genotypes originated from irrigated system cultivation performed better when subjected to propionic acid stress. These three genotypes will be a good biological material to for enhance the resistance to phytotoxic compounds in rice. The objective of this work was to evaluate the germination of 12 rice genotypes under propionic acid stress, a phytotoxic compound produced in low drainage soils with high organic matter content. The tests were conducted with the first count of germination (PCG) and germination (G) of the genotypes subjected to 0, 3, 6, and 9 mM propionic acid concentrations. The seeds of each genotype were placed in germitest paper pre-soaked in treatment solutions forming individual bags. The germination was performed at 25 °C and the counts were carried out at 7 (PCG) and 14 days (G). A factorial random block design was performed with four replications of 50 seeds per genotype. Our study revealed that doses up to 9 mM propionic acid in the pre-soaking solution were efficient for genetic variability studies involving the character germination in rice; genetic variability for germination was detected in the collection of rice genotypes when subjected to propionic acid toxic effects. The genotypes Guichow, Dawn, and Toride-1 showed germination stability when subjected to increasing levels of propionic acid, and genotypes originated from irrigated system cultivation performed better when subjected to propionic acid stress. These three genotypes will be a good biological material to for enhance the resistance to phytotoxic compounds in rice.

Middle Electrode in a Vertical Transistor Structure Using an Sn Layer by Thermal Evaporation

Gabriel Leonardo Nogueira,Maiza da Silva Ozório,Marcelo Marques da Silva,Rogério Miranda Morais,Neri Alves 대한금속·재료학회 2018 ELECTRONIC MATERIALS LETTERS Vol.14 No.3

We report a process for performing the middle electrode for a vertical field effect transistor (VOFET) by the evaporation ofa tin (Sn) layer. Bare aluminum oxide (Al2O3), obtained by anodization, and Al2O3covered with a polymethylmethacrylate(PMMA) layer were used as the gate dielectric. We measured the electrical resistance of Sn while the evaporation was carriedout to find the best condition to prepare the middle electrode, that is, good lateral conduction associated with openingsthat give permeability to the electric field in a vertical direction. This process showed that 55 nm Sn thick is suitable foruse in a VOFET, being easier to achieve optimal thickness when the Sn is evaporated onto PMMA than onto bare Al2O3. The addition of a PMMA layer on the Al2O3surface modifies the morphology of the Sn layer, resulting in a lowering of thethreshold voltage. The values of threshold voltage and electric field, VTH= − 8 V and ETH= 354.5 MV/m respectively, werecalculated using an Al2O3film 20 nm thick covered with a 14 nm PMMA layer as gate dielectric, while for bare Al2O3thesevalues were VTH= − 10 V and ETH= 500 MV/m.

A Robust Underactuated Synchronizer for a Five-dimensional Hyperchaotic System: Applications for Secure Communication

Juan Carlos González Gómez,Kevin Herman Muraro Gularte,José Alfredo Ruiz Vargas,Rogério Rodrigues dos Santos,José Antonio Ruz Hernández 제어·로봇·시스템학회 2023 International Journal of Control, Automation, and Vol.21 No.9

This paper presents the synchronization of a class of hyperchaotic systems using a robust underactuated approach. The proposed scheme guarantees the convergence in finite time of the slave system trajectories to the master system based on Lyapunov theory. The main novelty of the method is its simplicity resulting from the underactuated strategy and its robustness due to the presence of disturbances in the stability analysis. Simulations are presented to show the performance of the proposed method and its advantages compared with another recent study in the literature. In addition, a secure communication example is considered to illustrate the simple application of the synchronizer.