bluuebunny/crossref_metadata_2025 huggingface dataset:
Gastric wall changes after intragastric balloon placement: a preliminary experience
Authors: PÉRISSÉ LUÍS GUSTAVO SANTOS , ECBC-RJ PAULO CÉZAR MARQUES PÉRISSÉ, , RIBEIRO KELSON FERREIRA
Published: September 2016

ABSTRACT Objective : to evaluate the thickness of the gastric wall at the time of intra gastric balloon (IGB) placement, at the time of its withdrawal and one month after withdrawal. Methods : fifteen morbidly obese patients underwent the introduction of IGB under general anesthesia. In all patients, there was infusion of 500ml of distilled water in the balloon for the test. Measurements of the thickness of the gastric wall were made in the antrum, body and proximal body, using a radial echoendoscope with a frequency of 12MHz and maximum zoom, and its own balloon inflated with 5ml of distilled water. Results : the presence of IGB led to increased wall thickness of the gastric body by expanding the muscle layer. These changes were apparently transient, since 30 days after the balloon withdrawal there was a tendency to return of the wall thickness values observed before the balloon insertion. Conclusion : the use of intragastric balloon for the treatment of obesity determines transient increase in the wall thickness of the gastric body caused by expanded muscle layer.
Single transverse extended incision for radical neck dissection
Authors: Chagas José Francisco Sales , Pascoal Maria Beatriz Nogueira , Aquino José Luís Braga , Brandi Filho Luís Antônio , Previtale Evandro Von Zuben , Trillo Ana Sofia Pontes , Curioni Otávio Alberto , Rapoport Abrão , Dedivitis Rogério Aparecido
Published: September 2016

ABSTRACT Objective: to assess the efficacy of the single transverse extended cervical incision in radical neck dissection. Method: we conducted a prospective study, from January 2008 to January 2009, with 18 patients undergoing surgical treatment of malignant tumors of the upper aero-digestive tract. The primary lesion was located in the oral cavity in eight cases, in the oropharynx in three, in the hypopharynx in three, in the larynx in two, in the maxillary sinus, and in one case, the primary injury was hidden. There were 29 neck dissections, eight bilateral and 10 unilateral (26 radical and three selective). Staging revealed nine patients with T4 tumor, one T3, six T2, one T1 and one Tx. Five patients were N0, nine N2b, one N2c and three N3. The average number of dissected lymph nodes was 34.25. We performed the neck dissection through a single incision located in the middle neck, coincident with the skinfold, with a length of about 2 to 3 cm behind the anterior edge of the trapezius muscle and 3 to 4 cm from the midline for the unilateral neck dissections. Results: as complications, there were myocutaneous flap necrosis in one patient with prior radiation therapy, one lymphatic fistula, one dehiscence of the tracheostomy, one cervical abscess, one salivary fistula and one suture dehiscence. Conclusions: the single extended incision provides adequate exposure of the neck structures, without compromising surgical time, even in bilateral dissections. It does not compromise the resection of all cervical lymph nodes; it has excellent aesthetic and functional results and is easily associated with other approaches to resection of the primary tumor.
LINEA ALBA COLLAGEN ASSESSMENT IN MORBIDLY OBESE PATIENTS
Authors: GROSSI João Vicente Machado , NICOLA Felipe Fernandes , ZEPEDA Ivan Alberto , BECKER Martina , TRINDADE Eduardo Neubarth , DIEMEN Vinicius Von , CAVAZZOLA Leandro Totti , TRINDADE Manoel Roberto Maciel
Published: September 2016

ABSTRACT Background: The evaluation of collagen in the abdominal wall has been increasingly studied because of the relevance on collagen in the healing process after laparotomy. Aim: To evaluate the amount of collagen in the linea alba of patients undergoing laparotomic bariatric surgery and comparing with non-obese cadavers. Methods: Were evaluated 88 samples of aponeurosis from abdominal linea alba of 44 obese patients (obesity group) and 44 non-obese cadavers (control group). The samples were collected in 2013 and 2104, and were sorted according to age (18-30, 31-45 and 46-60), gender, BMI, waist and cervical circumference, and subcutaneous tissue thickness. Material for biopsy was collected from the supraumbilical region of the linea alba for immunohistochemical analysis differentiating collagen type 1 and type 3 and the 1/3 ratio. Image-Pro Plus pixel counting software was used to measure the amount of collagen. Results: The obesity group evidenced mean age 44.11±9.90 years; 18-30 age group had three (6.8%) obese individuals; 31-45 had 22 (50%) and 46-60 had 19 (43.1%). Females were present in 81.8% (n=36); BMI (kg/m²) was 48.81±6.5; waist circumference (cm) was 136.761±13.55; subcutaneous tissue thickness (cm) 4.873±0.916. Considering age groups, gender and BMI, there were statistical differences in all tests when compared with the cadavers. Conclusion: The amount of collagen in the linea alba above the umbilical region in the morbidly obese patients was smaller than in the non-obese cadavers in the same age group.
INTESTINAL MALROTATION IN PATIENTS UNDERGOING BARIATRIC SURGERY
Authors: VIDAL Eduardo Arevalo , RENDON Francisco Abarca , ZAMBRANO Trino Andrade , GARCÍA Yudoco Andrade , VITERI Mario Ferrin , CAMPOS Josemberg Marins , RAMOS Manoela Galvão , RAMOS Almino Cardoso
Published: September 2016

ABSTRACT Background: Intestinal malrotation is a rare congenital anomaly. In adults is very difficult to recognize due to the lack of symptoms. Diagnosis is usually incidental during surgical procedures or at autopsy. Aim: To review the occurrence and recognition of uneventful intestinal malrotation discovered during regular cases of bariatric surgeries. Methods: Were retrospectively reviewed the medical registry of 20,000 cases undergoing bariatric surgery, from January 2002 to January 2016, looking for the occurrence of intestinal malrotation and consequences in the intraoperative technique and immediate evolution of the patients. Results: Five cases (0,025%) of intestinal malrotation were found. All of them were males, aging 45, 49, 37,52 and 39 years; BMI 35, 42, 49, 47 and 52 kg/m2, all of them with a past medical history of morbid obesity. The patient with BMI 35 kg/m2 suffered from type 2 diabetes also. All procedures were completed by laparoscopic approach, with no conversions. In one patient was not possible to move the jejunum to the upper abdomen in order to establish the gastrojejunostomy and a sleeve gastrectomy was performed. In another patient was not possible to fully recognize the anatomy due to bowel adhesions and a single anastomosis gastric bypass was preferred. No leaks or bleeding were identified. There were no perioperative complications. All patients were discharged 72 h after the procedure and no immediate 30-day complications were reported. Conclusion: Patients with malrotation can successfully undergo laparoscopic bariatric surgery. May be necessary changes in the surgical original strategy regarding the malrotation. Surgeons must check full abdominal anatomical condition prior to start the division of the stomach.
PSYCHOLOGICAL PROFILE OF PATIENTS ELIGIBLE FOR BARIATRIC SURGERY
Authors: RIBEIRO Graziela Aparecida Nogueira de Almeida , GIAMPIETRO Helenice Brizolla , BELARMINO Lídia Barbieri , SALGADO-JÚNIOR Wilson
Published: September 2016

Abstract Background: The psychologist who works in bariatric surgery has a role to receive, evaluate, prepare and educate the patient who will undergo the surgical procedure. Psychological evaluation becomes important in so far as allows us to obtain data on personal and familiar history and allow tracing of possible psychopathology. Aim: To collect data on psychological evaluations of patients in a bariatric surgery service of a public hospital in order to describe the psychological profile of patients in this service. Method: Data were collected from 827 patients between 2001 and 2015, using data from an interview, Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI) and Binge Eating Scale (BES). Results: The mean age of patients before surgery was 39 years+/- 10, the mean BMI was 51 kg/m²+7, and most patients (81%) were female. The average score on the BDI was 14.8+8 and women had significantly higher scores than men. On the BAI the average score was 11+8 and on the ECAP was 14+8, both with no difference between groups. Conclusions: Psychosocial characteristics of the patients points to the significant presence of indicators of depression, with low levels of anxiety and binge eating.
SURFACE ELECTROMYOGRAPHY OF MASSETER AND TEMPORAL MUSCLES WITH USE PERCENTAGE WHILE CHEWING ON CANDIDATES FOR GASTROPLASTY
Authors: SANTOS Andréa Cavalcante dos , SILVA Carlos Antonio Bruno da
Published: September 2016

ABSTRACT Background: Surface electromyography identifies changes in the electrical potential of the muscles during each contraction. The percentage of use is a way to treat values enabling comparison between groups. Aim: To analyze the electrical activity and the percentage of use of masseter and temporal muscles during chewing in candidates for gastric bypass. Methods: It was used Surface Electromyography Miotool 200,400 (Miotec (r), Porto Alegre/RS, Brazil) integrated with Miograph 2.0 software, involving patients between 20-40 years old. Were included data on electrical activity simultaneously and in pairs of temporal muscle groups and masseter at rest, maximum intercuspation and during the chewing of food previously classified. Results: Were enrolled 39 patients (59 women), mean age 27.1+/-5.7. The percentage of use focused on temporal muscle, in a range of 11-20, female literacy (n=11; 47.82) on the left side and 15 (65.21) on the right-hand side. In the male, nine (56.25) at left and 12 (75.00) on the right-hand side. In masseter, also in the range of 11 to 20, female literacy (n=10; 43.48) on the left side and 11 (47.83) on the right-hand side. In the male, nine (56.25) at left and eight (50.00) on the right-hand side. Conclusion: 40-50% of the sample showed electrical activity in muscles (masseter and temporal) with variable values, and after processing into percentage value, facilitating the comparison of load of used electrical activity between the group, as well as usage percentage was obtained of muscle fibers 11-20% values involving, representing a range that is considered as a reference to the group studied. The gender was not a variable.
MASTICATORY FUNCTION OF OBESE CANDIDATES TO BARIATRIC SURGERY FROM DISTINCT SOCIOECONOMIC CLASSES
Authors: PASSERI Celso Roberto , ANDRADE Jacira Alves Caracik de Camargo , TOMAL Karla Thaíza , PRACUCHO Eduardo Marcucci , CAMPOS Livia Paschoalino de , SALES-PERES Silvia Helena de Carvalho
Published: September 2016

ABSTRACT Background: Obesity and metabolic syndrome can be labeled as worldwide outbreak; thus, both have led to serious public health problem. Oral health can be worsened by both, obesity and metabolic syndrome. Tooth loss harms masticatory function, essential status to whom will be submitted to bariatric surgery. Aim: Assess masticatory function of obese candidates to bariatric surgery, who belong to distinct socioeconomic class range, in order to recognize hazard factors and the bias of socioeconomic factor in this context. Methods: Observational cross-section study, with samples comprised by two groups of patients, with distinct socioeconomic class range, one of them belonging to public health system (SUSG) and the other to private clinic (CPG), candidates to bariatric surgery. Were assessed anthropometric data, comorbidities and medicines usage, blood tests, habits and the number of dental functional units. Results: The groups SUSG and CPG were homogeneous taking into account gender (p=0,890) and age range (p=0,170). The number of dental functional units was higher in the private group (p<0.001). The impaired masticatory function was rather present among public group (p<0.001) and female gender (p<0,001). Regarded as blood tests, fasting glucose was higher in female in SUSG (p<0,001). The following hazard factors have corroborated to have patients rated as impaired masticatory function: belong to public service (OR: 8.420, p=0.003), higher age (OR: 1.186, p<0.001), female gender (OR: 0.153, p=0.029), diabetes mellitus (OR: 2.545, p=0.045) and smokers (OR: 2.951, p=0.043). Conclusion: The general health and masticatory function of female SUSG were worse, highlighting the socioeconomic condition as hazard factor.
SERUM VITAMIN B12, IRON AND FOLIC ACID DEFICIENCIES IN OBESE INDIVIDUALS SUBMITTED TO DIFFERENT BARIATRIC TECHNIQUES
Authors: SILVA Rafaella de Andrade , MALTA Flávia Monteiro França , CORREIA Maria Flora Ferreira Sampaio Carvalho , BURGOS Maria Goretti Pessoa de Araújo
Published: September 2016

ABSTRACT Background: Different surgical techniques to combat obesity combine malabsorption with restrictive procedures and can lead to metabolic problems, such as micronutrient deficiencies. Aim: Assess vitamin B12, iron and folic acid deficiencies associated with the lifestyle of obese individuals having been submitted to different bariatric techniques. Methods: A retrospective analysis was performed using the electronic charts of patients submitted to bariatric surgery involving adjustable gastric banding and Roux-en-Y gastric bypass at the São João Hospital Center in the city of Porto, Portugal, between 2005 and 2010. The following data were collected: surgical technique, sex, age, marital status, serum concentrations of vitamin B12, iron and folic acid and postoperative lifestyle. A 5% significance level was used for the statistical analysis (p<0.05). Results: Among 286 individuals evaluated, females accounted for 90.9% of the overall sample (both techniques). Gastric banding was performed more (68.9%), but greater nutrient deficiencies were found following gastric bypass. Iron was the most prevalent deficiency (21.3%), followed by vitamin B12 (16.9%) and folic acid (4.5%). Mild to moderate alcohol intake, adherence to the diet and the use of multivitamins reduced the frequency, but did not avoid micronutrient deficiency. Conclusion: Vitamin B12, iron and folic acid deficiencies were found in the first and second year following the two bariatric techniques analyzed and were more frequent among individuals submitted to gastric bypass.
PRE- AND POSTOPERATIVE IN BARIATRIC SURGERY: SOME BIOCHEMICAL CHANGES
Authors: TEDESCO Amanda Kaseker , BIAZOTTO Rafaela , GEBARA Telma Souza e Silva , CAMBI Maria Paula Carlini , BARETTA Giorgio Alfredo Pedroso
Published: September 2016

ABSTRACT Background: The bariatric surgery may cause some nutritional deficiencies. Aim: To compare the serum levels of biochemical markers, in iimmediate post-surgical patients who were submitted to bariatric surgery. Methods: Non-concurrent prospective cross-sectional study. The analysis investigated data in medical charts of pre-surgical and immediate post-surgical patients who were submitted to bariatric surgery, focusing total cholesterol, HDL cholesterol, LDL cholesterol, triglycerides, C reactive protein, vitamin B12 levels, folic acid, homocysteine values, iron and serum calcium at the referred period. Results: Twenty-nine patients of both genders were evaluated. It was observed weight loss from 108.53 kg to 78.69 kg after the procedure. The variable LDL-c had a significant difference, decreasing approximately 30.3 mg/dl after the surgery. The vitamin B12 serum average levels went from 341.9 pg/ml to 667.2 pg/ml. The triglycerides values were in a range of 129.6 mg/dl-173.3 mg/dl, and 81.9 mg/dl-105.3 mg/dl at the pre- and postoperative respectively. CRP levels fall demonstrated reduction of inflammatory activity. The variable homocysteine was tested in a paired manner and it did not show a significant changing before or after, although it showed a strong correlation with LDL cholesterol. Conclusion: Eligible patients to bariatric surgery frequently present pre-nutritional deficiencies, having increased post-surgical risks when they don´t follow an appropriate nutritional follow-up.
SIMPLIFIED LAPAROSCOPIC GASTRIC BYPASS WITH GASTROJEJUNAL LINEAR MECHANICAL ANASTOMOSIS: TECHNICAL ASPECTS
Authors: PALERMO Mariano , SERRA Edgardo
Published: September 2016

ABSTRACT Background: Gastric bypass is a restrictive and malabsorptive surgery. The restrictive part consists in the creation of a small gastric pouch. The gastrointestinal bypass serves as the malabsorptive element. Aim: To describe a simplified gastric bypass approach for morbid obese patients, showing our results, and also remarking the importance of this technique for reducing the learning curve. Method: The patient is positioned in a split legs position and carefully strapped to the operating room table, with the surgeon between the patient's legs. Five trocars are inserted after pneumoperitoneum at the umbilicus. Dissection of the esophagogastric angle and lesser curvature is mandatory before the gastric pouch manufacturing. This pouch is done with two blue load staplers. Using a blue load linear stapler inserted only half way into the hole in the pouch is used to perform the gastrojejunal anastomosis and in order to create an anastomosis that is about 2 cm in length. A side-to-side jejunojejunostomy is done with a white load linear stapler. The last step of the gastric bypass consists in the cut of the jejunum between the two anastomosis with a white load linear stapler. Blue test is performed in order to detect leaks. Results: From January 2012 to December 2015, 415 simplified RYGB were performed. Gender: 67% female and 33 % males. Average of BMI 44.7. Mean age was 42 years old. Mean operative time 79 min. 39 % of this sample had T2 diabetes. Regarding complications were observed, one fistula, one gastrojejunal stenosis and one obstruction due to a bezoar. Conclusion: The described technique is a simplified approach in which all the anastomosis are performed in the upper part of the abdomen, allowing the surgeons to be more systematized and avoiding them to make mistakes in the confection of the Roux-en-Y anastomosis. This simplified gastric bypass is a safe and reproducible technique.
TENDINOPATHY AND OBESITY
Authors: CASTRO Adham do Amaral e , SKARE Thelma Larocca , NASSIF Paulo Afonso Nunes , SAKUMA Alexandre Kaue , BARROS Wagner Haese
Published: September 2016

ABSTRACT Introduction: Tendinopathies and tendon tears account for over 30% of all musculoskeletal consultations. Obesity, which is becoming one of the world´s most prevalent public health issues, may be associated with this condition. Objective: To review the literature about tendinopathies and obesity association. Methods: This is a descriptive exploratory study using the portal Medline. Literature in English language from 2006 to 2014 were reviewed. Results: The pathogenesis of tendinopathies includes inflammatory, regenerative and degenerative processes that happen simultaneously from early to late phases of the disease. Mechanical stress upon tendons seems to be one of the most important factors to initiate the inflammatory response, but it´s not the only one that can deflagrate it: there are other extrinsic, genetic and metabolic factors that may be involved. Therefore, tendinopathies in obese patients can be due to tendon overload because of the excess of weight, but also because of increased production of pro-inflammatory mediators related to fat tissue such as adipokines. This pro-inflammatory state that obese people can suffer is known as adiposopathy, or sick fat syndrome. Weight loss is associated with decrease in adipokines and improvement of musculoskeletal symptoms. Conclusion: The relation of obesity and tendinopathies is supported by evidences of recent studies, exemplified in this review of literature.
PATHOPHYSIOLOGY, DIAGNOSIS AND TREATMENTOF DUMPING SYNDROME AND ITS RELATION TO BARIATRIC SURGERY
Authors: CHAVES Yasmin da Silva , DESTEFANI Afrânio Côgo
Published: September 2016

ABSTRACT Introduction The dumping syndrome is frequent in bariatric surgery. It is probably the most common syndrome following partial or complete gastrectomy. Its prevalence in partial gastrectomy can reach up to 50%, thus it can be a significant complication arising from some types of bariatric surgeries. Objective: Critical analysis on dumping syndrome, its pathophysiology, diagnosis and treatment. Methods: A literature review was performed using the key words: 'dumping syndrome', 'bariatric surgery' and 'rapid dumping syndrome'. Inclusion criteria were: books, original works, case reports and meta-analyzes, and the exclusion criterion was literature review. Concerning the publication time, articles were screened between 1960 and May 2015. Results: The dumping syndrome is complication arising from obesity surgeries, but also can be a result of vagus nerve damage. Diagnosis is done primarily through the use of questionnaires based on scores. Conclusion: The Sigstad score and Arts survey are valid means for assessing the dumping syndrome. Initial therapy consists in the adoption of dietary measures, short acting drugs administration.
FROM COMPLEX EVOLVING TO SIMPLE: CURRENT REVISIONAL AND ENDOSCOPIC PROCEDURES FOLLOWING BARIATRIC SURGERY
Authors: ZORRON Ricardo , GALVÃO-NETO Manoel Passos , CAMPOS Josemberg , BRANCO Alcides José , SAMPAIO José , JUNGHANS Tido , BOTHE Claudia , BENZING Christian , KRENZIEN Felix
Published: September 2016

ABSTRACT Background: Roux-en-Y gastric bypass (RYGB) is a standard therapy in bariatric surgery. Sleeve gastrectomy and gastric banding, although with good results in the literature, are showing higher rates of treatment failure to reduce obesity-associated morbidity and body weight. Other problems after bariatric may occur, as band erosion, gastroesophageal reflux disease and might be refractory to medication. Therefore, a laparoscopic conversion to a RYGB can be an effective alternative, as long as specific indications for revision are fulfilled. Objective: The objective of this study was to analyse own and literature data on revisional bariatric procedures to evaluate best alternatives to current practice. Methods: Institutional experience and systematic review from the literature on revisional bariatric surgery. Results: Endoscopic procedures are recently applied to ameliorate failure and complications of bariatric procedures. Therapy failure following RYGB occurs in up to 20%. Transoral outlet reduction is currently an alternative method to reduce the gastrojejunal anastomosis. The diameter and volume of sleeve gastrectomy can enlarge as well, which can be reduced by endoscopic full-thickness sutures longitudinally. Dumping syndrome and severe hypoglycemic episodes (neuroglycopenia) can be present in patients following RYGB. The hypoglycemic episodes have to be evaluated and usually can be treated conventionally. To avoid partial pancreatectomy or conversion to normal anatomy, a new laparoscopic approach with remnant gastric resection and jejunal interposition can be applied in non-responders alternatively. Hypoglycemic episodes are ameliorated while weight loss is sustained. Conclusion: Revisional and endoscopic procedures following bariatric surgery in patients with collateral symptomatic or treatment failure can be applied. Conventional non-surgical approaches should have been applied intensively before a revisional surgery will be indicated. Former complex surgical revisional procedures are evolving to less complicated endoscopic solutions.
Fatores relevantes de competitividade no negócio de consultoria de tecnologia da informação
Authors: Calicchio Antonio Carlos , Marcondes Reynaldo Cavalheiro
Published: September 2016

Resumo Este artigo identifica como as empresas de consultoria de tecnologia da informação (TI) utilizam seus recursos e capacidades na busca pela vantagem competitiva, sob a abordagem da Visão Baseada em Recursos (VBR). A pesquisa foi do tipo exploratório e de natureza descritiva, tendo-se adotado o método qualitativo, com entrevistas em profundidade orientadas por um roteiro padrão com perguntas abertas. Foram entrevistados sete executivos da alta gestão de empresas de consultoria de TI classificadas entre as Top 10 deste segmento. Para a análise e interpretação dos dados, foi aplicada a Análise de Conteúdo, com o apoio de uma planilha para gerar as categorias da análise. Como resultado, foi identificado que as empresas que participaram da pesquisa utilizam-se do conhecimento dos seus recursos humanos e do relacionamento com os clientes, como componentes cruciais de suas estratégias de negócios. Esses recursos e capacidades são estrategicamente utilizados, aproveitando o vínculo estabelecido com o cliente na busca de novas oportunidades de negócios, de maneira a criar uma barreira às ameaças de novos entrantes.
Hidroxiapatita: suporte para liberação de fármacos e propriedades antimicrobianas
Authors: Santos M. V. B. dos , Osajima J. A. , Silva Filho E. C. da
Published: September 2016

Resumo Os fosfatos de cálcio são materiais cerâmicos que apresentam propriedades particulares como biocompatibilidade e similaridade química com os tecidos ósseos e dentários dos seres vivos. Sua morfologia porosa permite que estes se apresentem como material apropriado para a utilização em substituição de pequenas partes de tecido ósseo, já que proporciona o crescimento de canais de sistemas nervosos, suporte para vasos sanguíneos como também suporte para deposição de fármacos. Dentre os fosfatos de cálcio, a hidroxiapatita se apresenta como fosfato mais estável, o qual é encontrado em maior proporção nos tecidos ósseo e dentário no organismo. Este trabalho teve por objetivo buscar nos bancos de artigos e de patentes trabalhos que relacionem a atividade antimicrobiana da hidroxiapatita, dando suporte a pesquisadores que trabalhem com esta cerâmica para aplicações em tecido dentário, como também a utilização da hidroxiapatita focando o suporte para incorporação de fármaco. Os bancos pesquisados foram o Scopus, Scielo e Web of Science para os artigos e USPTO, EPO e INPI para os bancos de patentes. Os critérios de exclusão levaram a 19 artigos que estudaram hidroxiapatita em conjunto com a clorexidina e zero patente encontrado. Dentre os artigos encontrados, a clorexidina é o fármaco mais empregado como agente antimicrobiano, e a bactéria mais utilizada nos testes é a gram-positiva Streptococcus mutans.
Caracterização e incorporação de cinza de resíduo sólido urbano em cerâmica vermelha
Authors: Coutinho N. C. , Vieira C. M. F.
Published: September 2016

Resumo Este trabalho tem por objetivo avaliar o efeito da incorporação de cinza de resíduo sólido urbano nas propriedades físicas e mecânicas da cerâmica vermelha. Foram preparados corpos de prova por prensagem uniaxial a 20 MPa para queima a 750 °C, com incorporações de resíduo (70% de cinza de fundo e 30% de cinza volante) de até 20% em massa em argila caulinítica da região de Campos dos Goytacazes, RJ. As matérias-primas foram submetidas à análise química, mineralógica, física e morfológica. As propriedades físicas e mecânicas avaliadas nos corpos de prova foram: absorção de água, retração linear e tensão de ruptura à flexão. Os resultados sugerem a incorporação de quantidades em torno de 5% em massa de cinzas na argila para não prejudicar o comportamento mecânico da cerâmica, bem como evitar o aparecimento de porosidade aberta excessiva, podendo ser esta uma destinação final ambientalmente adequada para as cinzas de resíduo sólido urbano.
Acompanhamento da hidratação de cimento Portland simples com resíduo de bauxita
Authors: Romano R. C. O. , Fujii A. L. , Souza R. B. , Takeashi M. S. , Pileggi R. G. , Cincotto M. A.
Published: September 2016

Resumo A substituição parcial de cimento Portland por resíduo de bauxita (RB) resulta em produtos com, no mínimo, propriedades similares às dos produtos fabricados com o ligante puro. No entanto, as interações físico-químicas entre os diferentes tipos de cimento e o RB durante a reação de hidratação ainda é pouco explorada em literatura. A elevada quantidade de sódio e a presença de Al2O3, SiO2 e Fe2O3 são fatores que afetam a formação dos produtos hidratados e dependem do tipo de cimento utilizado na mistura. Sendo assim, este trabalho foi realizado com o objetivo de avaliar o impacto da presença do resíduo de bauxita em associação ao cimento Portland simples nas primeiras idades de hidratação. Calorimetria de condução isotérmica, difração de raios X, análise termogravimétrica e espectroscopia de infravermelho foram as técnicas escolhidas para o monitoramento. Os resultados ilustraram que a presença do resíduo coletado na planta da Alcoa (Poços de Caldas) aumenta o tempo de indução, o consumo de portlandita, e as quantidades de etringita e monossulfoaluminato formadas. Ao mesmo tempo, houve formação de silicoaluminato de sódio e bicarbonato de sódio, devido às reações com silicatos, aluminatos e com o carbonato do cimento.
Total antioxidant activity of yacon tubers cultivated in Brazil
Authors: Pereira Juciane Abreu Ribeiro , Teixeira Meryene Carvalho , Saczk Adelir Aparecida , Barcelos Maria de Fátima Piccolo , Oliveira Marcelo Firmino de , Abreu Wilson César de
Published: September 2016

ABSTRACT Yacon (Smallanthus sonchifolius) is a tuberous root from the Andean region in the South America rich em water, fructooligosaccharides and phenolic compounds, some of which are natural antioxidants and may help prevent the deleterious action of free radicals in the body. The yacon has attracted much attention due to their potential health benefits to humans. In this study the levels of total phenolics, tannins, phenolic acids, and total antioxidant activity were measured in the peel and pulp of yacon tubers both in the fresh and flour forms. The flours of yacon presented higher concentrations of total phenolics and tannins, especially peel flour. The yacon pulp flour stood out as the main source of phenolic acids, mainly caffeic and chlorogenic acid. The total antioxidant activity assessed by DPPH (2,2-Diphenyl-1-picrylhydrazyl) and ABTS (2,2′-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)) assays was higher in the yacon peel flour. The total antioxidant activity was correlated with the total phenolic content and tannins by the DPPH and ABTS assays. These results suggest that yacon can be used as an alternative food source of phenolic compounds that help prevent degenerative processes caused by oxidative stress, especially in the flours form.
Mapping soils in two watersheds using legacy data and extrapolation for similar surrounding areas
Authors: Pelegrino Marcelo Henrique Procópio , Silva Sérgio Henrique Godinho , Menezes Michele Duarte de , Silva Elidiane da , Owens Phillip Ray , Curi Nilton
Published: September 2016

ABSTRACT Existing soil maps (legacy data) associated with digital mapping techniques are alternatives to obtain information at lower costs, however, tests are required to do it more efficiently. This study had as objectives to compare different methods to extract information from detailed scale soil maps using decision trees for mapping soil classes at two watersheds in Minas Gerais, validate these maps in the field and use the best method to extrapolate information to larger areas, also validating these maps of larger areas. Detailed soil maps of Vista Bela creek (VBW) and Marcela creek (MCW) watersheds were used as source of information. Seven methods to extract information from maps were compared: the whole polygon, eliminating 20 and 40 m from the polygon boundaries, and with buffers around the sampled points with radii of 25 m, 50 m, 75 m, and 100 m. The Classification and Regression Trees (CART) algorithm was employed to create decision trees and enable creation of soil maps. Accuracy was assessed through overall accuracy and kappa index. The best method was used to extrapolate information to larger areas and maps were validated. The best methods for VCW and MCW were, respectively, eliminating 20 m from polygon edges and buffer of 25 m of radii from points. Maps for larger areas were obtained using these methods. Removing uncertainty areas from legacy soil maps contribute to better modeling and prediction of soil classes. Information generated in this work allowed for validated extrapolation of soil maps for regions surrounding the watersheds.
Physalis size reduction for potted ornamental plant use
Authors: Bosch Emily , Cuquel Francine Lorena , Tognon Grasiela Bruzamarello
Published: September 2016

ABSTRACT The consumer's constant search for novelties in the area of ornamental plants has inspired the use of species that are normally used for other purposes, such as fruit-bearing plants, to be introduced into floriculture. The physalis, a fruit-bearing plant, with a beautiful accrescent fruiting calyx that envelops the berry, can be used for these purposes. However, this plant can reach 70 cm high, which makes it unviable to be used as an indoor plant. The objective of this research was to decrease the size of the physalis (Physalis angulata) for ornamental use, pot it and apply the plant growth regulator Paclobutrazol (PBZ). The PBZ growth regulator was applied only once, via foliar spray at the concentrations of 0, 30, 60, 90, 120 and 150 mg a.i L- 1, as well as via irrigation in the substrate at concentrations of 0, 5, 10, 15, 30 and 60 mg a.i L- 1. Along with the quantitative variables, a plant acceptability test was carried out when it was considered ideal for commercialization. The obtained results clearly show that it is possible to reduce the size of the physalis for use as a potted plant by using PBZ with foliar applications at the concentration of 90 mg a.i L-1 or by using irrigation applications directly in the substrate at a concentration of 5 mg a.i L-1.
Pathological effects of acetone cyanohydrin in swiss rats
Authors: Rufino Marcos Natal , Cereda Marney Pascoli , Barreto Wanessa Teixeira Gomes , Silva Alanderson Rodrigues da , Andrade Gisele Braziliano de , Herrera Heitor Miraglia
Published: September 2016

ABSTRACT Cassava has been widely used for animal and human nutrition. It has also been demonstrated to have antineoplastic and anthelmintic properties. Toxicity due to cassava consumption has been reported in ruminants and laboratory animals; therefore, this study aimed to investigate the toxic effects of acetone cyanohydrin, a metabolite of linamarin that is present in cassava, in Wistar rats. Six groups of five animals each were used to evaluate the toxic effects of acetone cyanohydrin administered at 25 (G1), 50 (G2), 75 (G3), 100 (G4) and 125 (G5) µmol/kg as a single oral dose. The control group received acidified water (pH 3.5). The animals were monitored after administration of acetone cyanohydrin, and clinical symptoms were recorded. Serum enzyme levels were measured to assess the kidney and liver function. During necropsy, tissue samples were collected for histopathological examination. After administration, some animals in the G2, G4, and G5 groups presented neurological symptoms such as convulsions, involuntary muscle contraction, staggering gait, motor coordination disability, prostration, and mydriasis. All of the animals in the G5 and four animals in the G4 group died seven minutes after the administration of acetone cyanohydrin. Animals in the other groups, particularly in G2, recovered from the acute phase. Biochemical analysis revealed hepatic lesions and liver dysfunction. Histopathology revealed severe lesions in both the liver and brain. In conclusion, acetone cyanohydrin has toxic effects in the liver, lung, and central nervous system in rats; however, at concentrations up to 25 µmol/kg, the animals could survive the acute phase.
Assessment of the usability of a digital learning technology prototype for monitoring intracranial pressure
Authors: Carvalho Lilian Regina de , Évora Yolanda Dora Martinez , Zem-Mascarenhas Silvia Helena
Published: September 2016

ABSTRACT Objective: to assess the usability of a digital learning technology prototype as a new method for minimally invasive monitoring of intracranial pressure. Method: descriptive study using a quantitative approach on assessing the usability of a prototype based on Nielsen's ten heuristics. Four experts in the area of Human-Computer interaction participated in the study. Results: the evaluation delivered eight violated heuristics and 31 usability problems in the 32 screens of the prototype. Conclusion: the suggestions of the evaluators were critical for developing an intuitive, user-friendly interface and will be included in the final version of the digital learning technology.
Sexual violence as a limiting factor on the perception and management of the risk of HIV in women married to migrants
Authors: Flores Yesica Yolanda Rangel
Published: September 2016

ABSTRACT Objective: to analyze the influence of sexual violence on the perception and management of the risk of HIV in women married to migrants. Methods: study with an ethnographic approach carried out in urban and rural communities. Data were obtained by methodological triangulation, with participant and non-participant observation, as well as interviews. The informants were 21 women married to international migrants. The interviews were transcribed and discourse analysis was applied to them. Results: three categories emerged from the speeches to problematize the influence of sexual violence in the perception and management of the risk of HIV: "Characterization of sexual practices in the context of migration", "Experiences of sexual violence" and "Construction of the risk of HIV-AIDS". Conclusion: women have difficulty to recognize the acts of sexual violence in their daily lives, and their perceptions of risk are not decisive in the management of the threat to which they are exposed. Therefore, it is becoming increasingly urgent that nursing problematizes the sexual violence within "steady couples", as a challenge to the promotion of healthy lifestyles.
Linear relations between apple traits
Authors: Toebe Marcos , Both Vanderlei , Thewes Fabio Rodrigo , Cargnelutti Filho Alberto , Brackmann Auri
Published: September 2016

ABSTRACT The study of linear associations between traits is critical for the selection or the indirect quantification of the interest traits. Thus, the objective of this research was to evaluate the linear relationships among traits of apple fruits, in ‘Royal Gala’ and ‘Fuji’ cultivars, at harvest and after cold storage. In this investigation, 120 fruits of ‘Royal Gala’ and 120 fruits of ‘Fuji’ at harvest and 120 fruits of ‘Royal Gala’ and 111 fruits of ‘Fuji’ after cold storage were evaluated. Morphological/productive (mass, longitudinal diameter, major and minor transverse diameters) and quality traits (firmness, total soluble solids, titratable acidity, juice content, ethylene production and respiration) were measured. In each cultivar (‘Royal Gala’ and ‘Fuji’) and time of evaluation (at harvest or after cold storage), the Pearson’s linear correlation coefficients among the pairs of traits and the canonical correlation among the groups of morphological/productive and of quality traits were calculated. At harvest, the apple fruits with higher mass had lower firmness and higher total soluble solids, regardless of the cultivar. After cold storage, the apple fruits with higher mass had higher total soluble solids and lower respiration, regardless of the cultivar, and higher juice content in the ‘Fuji’ cultivar.
De Volta à Sala Fechada: o meu diálogo com Jerzy Grotowski
Authors: Ruffini Franco
Published: September 2016

RESUMO A partir da leitura de cartas e textos de Jerzy Grotowski, Eugenio Barba e Constantin Stanislavski, este texto discute as diferentes compreensões do autor acerca da obra de Grotowski. Ao comparar diferentes passagens de escritos de Grotowski e Stanislavski, este texto elucida e problematiza, do ponto de vista histórico, alguns elementos na genealogia da obra desses autores, incluindo a filiação de Grotowski em relação a Stanislavski. Por fim, apresenta-se o trabalho do ator no panorama de conceitos como memória e corpo-energia, próprios da herança desses diretores-pedagogos.
A Incandescência, a Flor e o Anteparo
Authors: Dusigne Jean-François
Published: September 2016

RESUMO Este artigo propõe uma reflexão sobre a noção de presença cênica. Ao passar em revista os termos frequentemente utilizados para evocar essa qualidade essencial do trabalho do ator - perceptível aos olhos de todos, mas sempre difícil a definir -, o autor mostra o quanto o conceito de presença é oscilante e ideológico. A partir de uma abordagem histórica, ele discorre sobre a evolução das ideias e dos critérios relativos à presença do ator desde que a encenação, no final do século XIX, começou a se afirmar como arte. Sua reflexão se baseia notadamente sobre as experiências desenvolvidas por Constantin Stanislavski e, mais tarde, por Ariane Mnouchkine. De um modo geral, o autor demonstra como os estudos da presença permitem avaliar o impacto produzido pelo ator sobre o público.
Narrativas de Professoras: teatro e experiência
Authors: Lobo Andréa Maria Favilla
Published: September 2016

RESUMO Este artigo discute as concepções de e as experiências com o teatro na trajetória de professoras, a partir das análises de seus depoimentos. As categorias analisadas dialogam tanto com os impactos dos processos de socialização dessas docentes em suas escolhas de vida, quanto com as suas concepções sobre o teatro. Tais reflexões são resultado de pesquisa realizada nos anos de 2008 e 2009 em Rio Branco - Acre. Consideraram-se aspectos que permearam as preferências e concepções das docentes, na perspectiva teórica de Pierre Bourdieu, de Bernard Lahire, da História Cultural e da Etnocenologia.
O Pulo do Gato ou Reflexões sobre a Presença do Ator
Authors: Marocco Inês Alcaraz , Heidrich Elisa , Cabeda Kalisy , Philippsen Philipe , Fiatt Rodrigo
Published: September 2016

RESUMO Este artigo tece reflexões sobre o desenvolvimento da presença física do ator através de um trabalho pré- expressivo com a técnica da Máscara Neutra, segundo o sistema pedagógico de Jacques Lecoq, numa experiência acadêmico/artística com alunos do curso de Teatro da Universidade Federal do Rio Grande do Sul durante o processo de criação do espetáculo O Sobrado.
Estudos da Presença: prolegômenos para a pesquisa das práticas performativas
Authors: Icle Gilberto
Published: September 2016

RESUMO Este texto se ocupa em apresentar algumas notas sobre a maneira por intermédio da qual os Estudos da Presença se circunscrevem do ponto de vista epistemológico. Apresenta-se o contexto de pesquisa universitário no qual essa perspectiva está inserida e o modo autorreferencial de pequisar as práticas performativas. Discute-se a presença no trabalho do performer e sua relação com o significado para delimitar um campo de problematização sobre a insuficiência da interpretação como modo único de acesso ao conhecimento. Propõe-se, a partir de Michel Foucault e Hans Ulrich Gumbrecht, outros modos de pesquisa para as práticas performativas.
O Etnocentrismo Nominal e as Artes do Espetáculo Vivo
Authors: Pradier Jean-Marie
Published: September 2016

RESUMO Este texto apresenta as práticas espetaculares humanas a partir de seu estatuto diverso e diversificado, designadas por uma denominação original que lhe é própria. Discutem-se tais lexemas como valor de patronímico identitário. Discute-se o etnocentrismo nominal como uma tendência difundida em diferentes meios - inclusive acadêmicos - e que consiste em substituir o termo original por uma tradução analógica. Mostra-se como tal operação, exercida pelas línguas dominantes, faz adotar termos como teatro e tragédia como qualificativos para valorizar as práticas consideradas como menores. Criticam-se tais etnocentrismos, apresentando-se argumentos da literatura, da linguística e de outros campos de saber.
Longe dos Olhos, Perto do Coração
Authors: Mostaço Edelcio
Published: September 2016

RESUMO O artigo especula sobre diferenças entre culturas de presença e culturas de sentido, apontando as primeiras como atadas a certas configurações cósmicas e as segundas caracterizadas pela cisão do eu que engendra a separação do mundo. Destaca o papel do cristianismo como preparação mental para o advento do regime de ficção nas culturas ocidentais, ao enfatizar a presença através da ausência.
Traducir la Muerte para Pensar el Arte: apuntes sobre la escena posdramática
Authors: Trastoy Beatriz
Published: September 2016

RESUMEN La (imposible) presentación escénica de la muerte plantea nuevos desafíos para las prácticas y para la teoría de las artes escénicas contemporáneas, sobre los que aquí intentaremos reflexionar. Para ello, consideraremos algunos ejemplos del teatro argentino de los últimos años: Los muertos (Ensayo sobre representaciones de la muerte en la Argentina), estrenada en 2005, escrita y dirigida por Beatriz Catani y Mariano Pensotti, y Adonde van los muertos (Lado B), 2010, y su precuela, Adonde van los muertos (Lado A), 2011, creación del Grupo Krapp.
Corpo em Cena: oralidade e etnocenologia
Authors: Dumas Alexandra Gouvea
Published: September 2016

RESUMO Este texto analisa processos de transmissão de conhecimentos humanos, nos quais duas formas são evidenciadas: a oralidade e a escrita. Discute-se o fato dos fenômenos cênicos serem vistos e estudados como uma variação da oralidade. Apresentam-se outras perspectivas, a partir da criação e afirmação de disciplinas que têm como objeto as práticas espetaculares, a exemplo da Etnocenologia. O artigo considera as particularidades e diferenciações do evento cênico em relação a outros sistemas de expressão humana. Sendo assim, o presente texto se propõe a analisar aspectos da cena no que tange ao corpo e a sua relação sensorial e comunicacional, destacando-a como um formato distinto de estruturas como a escrita e a oralidade.
Teatro e Neurociência: da intenção dilatada à experiência performativa do espectador
Authors: Sofia Gabriele
Published: September 2016

RESUMO Este texto trata do estudo do teatro como relação intersubjetiva entre seres humanos e põe em evidência o diálogo com as recentes pesquisas das neurociências cognitivas. Apresenta-se uma comparação entres esses dois campos disciplinares e guia-se tal comparação a partir da pergunta: se o ator em cena organiza o próprio sistema corpo-mente de maneira diferente, é possível estudar essa diferença do ponto de vista neurocientífico? Discute-se a resposta para essa pergunta a partir da necessidade da formulação de algumas hipóteses teóricas que preparam e encaminham as experimentações: a intenção dilatada, a ambiguidade do ator, a co-constituição do espaço cênico e a experiência performativa do espectador.
Venezuela 1976: o encontro entre o Odin Teatret e os Yanomamis
Authors: Sanctis Arianna Berenice De
Published: September 2016

RESUMO O texto descreve o encontro, em 1976, do Odin Teatret e os índios Yanomamis, a partir da participação do grupo dinamarquês no Festival de Caracas (Venezuela), para apresentação do espetáculo Come! And the day will be ours. Discute-se essa viagem, como uma etapa fundamental na história do Odin, pois trata-se da primeira vez que o grupo todo se apresenta na América Latina. Narra-se a permanência do Odin Teatret durante seis semanas na Venezuela e a organização de um troc com os índios Yanomamis, uma comunidade ao norte do rio Orénoque, na Amazônia venezuelana. Os dados analisados são provenientes dos arquivos do CTLS (Holstebro, Dinamarca) assim como de entrevistas e de testemunhos dos atores do Odin Teatret. Usa-se uma perspectiva etnocenológica de análise.