Poster Session : PS 0383 ; Infectious Disease ; From a Thoracic Pain to a Cervical Spondilolyscitis

( Armando Braz ),( Marta Rosario ),( Conceicao Quadrado ),( Jose Braz Nogueira ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

A 68-year-old patient with atrial fibrillation, sleep apnea doing nocturnal Cpap, hypertension and ischemic heart failure, went to the emergency department with complaints of chest pain radiating to the neck for 3 days. In the emergency room he couldn`t take a deep breath despite being medicated with painkillers. On the blood work there was an increase of the infi ammatory parameters, but the cardiac enzymes, the EKG and the chest X-ray were normal. Nitrates were also administered but without improvement. The diagnosis of infective endocarditis was plausible due to the clinical and laboratorial fi ndings, but the echocardiogram showed a hypertrophic left ventricle but no vegetation. Without a defi nitive diagnosis, the patient was admitted in the internal medicine department. Blood cultures were taken and started the empirical treatment for infective endocarditis with penicillin and fi ucloxaciline. After 3 days, a MSSA was isolated, sensitive to fi ucloxaciline and clindamicine, but the patient became hemodynamicaly instable and got worse. The symptoms also changed, having intense neck pain, dysphagia and odynophagia. A neck and thorax CT-scan was performed showing a large retropharyngeal abscess extending to the posterior mediastinum. Due to kidney failure, the patient needed to start doing hemodialysis, where he had a cardiac arrest. Upon stabilization, a surgical drainage of the abscess was performed and he was transferred to the intensive care unit where he stayed for 97 days due to cervical spondylodiscitis. There were several problems including: thoracic empyema, right brachial plexus damage due to destruction of the c3-c6 vertebrae and more. He returned to the ward, starting intense physiotherapy with a quick and full recovery. This is a success story of a patient who was discharged after a serious condition, walking by his own feet, but the origins of the abscess still a mystery.

Poster Session:PS 0569 ; Oncology : Pancreatic Cancer Causing Heart Failure

( Armando Lopes Braz ),( Tiago Mascarenhas ),( Conceicao Quadrado ),( Jose Braz Nogueira ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

A 67-year-old patient was sent to the internal medicine consultation due to dyspnea, orthopnea and lower limb edemas for 6 month, which got worse in the past 2 weeks, with diffi cult stabilization and control, even with intense therapy for heart failure. The therapy was improved and an echocardiogram was requested. One month later she was reevaluated showing no clinical improvement, so she was admitted in the internal medicine ward. The echocardiogram showed an ejection fraction of 21%, increased right chambers, severe pulmonary hypertension and left ventricle dilatation with depressed cardiac function. The therapy for heart failure was optimized and a ventilation-perfusion scyntigraphy was performed to evaluate the respiratory system. It revealed areas of pulmonary collapse and pulmonary embolism. On the ward she suffered a sudden episode of dyspnea and left leg edema and experienced severe pain. An ultrasound of the lower limbs proved the existence of bilateral severe deep venous thrombosis. For a further investigation the patient did a body CT-scan and cancer markers were searched. The CA19.9 was 253679 and there were several metastatic lesions on the liver and an infracentrimetic mass on the pancreatic tail on the CTScan. She started anticoagulation for prevention of other pulmonary embolism, while waiting for a pancreatic biopsy. The patient died 3 month after the diagnosis due to a sudden Myocardial infarction. The symptoms of heart failure dominated the whole clinical picture, being the DVT the wind of change to establish the diagnosis of pancreatic cancer, a scary disease that was silent for so long. This case shows the importance of the paraneoplastic symptoms such the bilateral DVT which was the important milestone for a further investigation and the fi nal diagnose.

Poster Session : PS 0389 ; Infectious Disease ; Vasculitis Caused by Infectious Agent or Allergic Reaction

( Armando Lopes Braz ),( Tiago Mascarenhas ),( Conceicao Quadrado ),( Jose Braz Nogueira ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

The clinical case is about a 44 years old male patient who was transferred to our hospital due to vasculitis. He was living in Angola for 8 years, being healthy until 2 weeks before being transferred. He started to feel abdominal cramps, muscular and joint pain over a period of 3 days. He was admitted in a clinic suspecting of malaria, starting antimalarial medication. On the 3rd day, the blood results for infectious diseases and maliaria were negative. He stooped the treatment and was discharged. After 4 days the patient started to complain of the same symptoms aggravated with asthenia, tiredness and diarrhea. He was readmitted and treated with antibiotics. Three days later some petequial lesions appeared in the lower limbs, getting spread arms and ears. These lesions got bigger over the next 2 days becoming macules and then changed to penfi - goid lesions with central necroses. The lesions covered the all lower limbs and part of the upper limbs, spearing the trunk. Corticosteroids were added to the treatment but he got worse, being later transferred to our hospital. The fi rst evaluation revealed a severe lower limbs edema, hypoalbuminemia and renal failure. All the treatment was stooped apart of pain killers and done some skin biopsies. The result was positive for leukocytoclastic vasculitis. Because of the GIT symptoms an endoscopy and colonoscopy was performed. The gut was covered with extense ulcerative lesions and was identifi ed inside them CMV. The body CT and Abdominal ultrasound were normal. The patient started the treatment with Valaciclovir during 15 days, followed with 6 weeks of Ganciclovir. This case still covered in dough, because it`s impossible to know if the hypersensibility reaction to the anti-malary drugs started the vasculites, triggering the CMV infection or the CMV developed the vasculitis.

Semi-active fuzzy based control system for vibration reduction of a SDOF structure under seismic excitation

Braz-Cesar, Manuel T.,Barros, Rui C. Techno-Press 2018 Smart Structures and Systems, An International Jou Vol.21 No.4

This paper presents the application of a semi-active fuzzy based control system for seismic response reduction of a single degree-of-freedom (SDOF) framed structure using a Magnetorheological (MR) damper. Semi-active vibration control with MR dampers has been shown to be a viable approach to protect building structures from earthquake excitation. Moreover, intelligent damping systems based on soft-computing techniques such as fuzzy logic models have the inherent robustness to deal with typical uncertainties and non-linearities present in civil engineering structures. Thus, the proposed semi-active control system uses fuzzy logic based models to simulate the behavior of MR damper and also to develop the control algorithm that computes the required control signal to command the actuator. The results of the numerical simulations show the effectiveness of the suggested semi-active control system in reducing the response of the SDOF structure.

Thermal properties and curing kinetics of epoxy powder coatings containing graphene nanoplatelets

Andrielen Braz Vanzetto,Lucas Dall Agnol,Alessandra Lavoratti,Marcos Vinícius Marocco,Gabriel Gonem de Lima,Lilian Vanessa Rossa Beltrami,Ademir José Zattera,Diego Piazza 한국화학공학회 2021 Korean Journal of Chemical Engineering Vol.38 No.9

Graphene nanoplatelets (GNP) have excellent properties, such as high mechanical strength and good thermal conductivity, making them interesting nanofiller for their application in powder coatings. In this context, the aim of this study was to evaluate the thermal behavior and the curing kinetics of epoxy powder coatings containing GNP. The coatings were obtained by mixing in a ball mill followed by homogenization in molten state. The GNP were dispersed directly into the epoxy powder. The morphology, thermal stability and curing kinetics of the samples were evaluated. During the curing process, the GNP accelerated the onset of the reaction but ultimately caused steric impediment. From the results, the GNP incorporated to the solid epoxy resin for coatings behaved differently in each stage of the curing process. In general, while the direct dispersion of GNP in powder epoxy by dry mixing methods was not ideal, the thermal properties were improved, with GNP inducing a poor curing state where diffusion phenomena are predominant.

WHO IS TO BLAME? EFFECTS OF CAUSAL LOCUS WHEN CO-PRODUCTION RESULTS ARE UNSATISFACTORY

Larissa Carine Braz Becker,Natália Araújo Pacheco,Vinicius Andrade Brei 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.10

Co-production is defined as customer participation in production activities that generate a result to be consumed (Etgar, 2008). Previous research has shown the positive effects of co-production, such as satisfaction, perceived control, and perceived quality (Chan, Yim, & Lam, 2010; Golder, Mitra, & Moorman, 2012; Hunt, Oneto, & Varca, 2012). However, knowledge about the potential negative consequences from co-production is scarce. Despite the importance of the role of causal locus in the generation of unsatisfactory results, to date, this subject has not been properly studied. Considering that co-production is increasingly common in contemporary consumption contexts, this paper aims to broaden knowledge about unsatisfactory results from co-production. Based on two experimental studies, we analyze the role of the causal locus of failures on customer regret and disappointment, taking into consideration the self-serving bias. The results show that a consumption situation with an unsatisfactory regret tends to be higher when the consumer takes the blame than when the causal locus is attributed to the company. When the causal locus is uncertain, regret is higher than disappointment and higher than the regret experienced when the company or the service employee is blamed. Because regret is associated with internal causal attribution, these results contradict the self-serving bias literature, which affirms that people are more likely to make external than internal attributions for failures (Mezulis, Abramson, Hyde, & Hankin, 2004; Weiner, 2010). The internal failure attribution converges with the idea that consumer participation in production implies more responsibility over the result (Bitner, Faranda, Hubbert, & Zeithaml, 1997; Prahalad & Ramaswamy, 2004).When the causal locus is attributed to the company or to the service employee, disappointment towards the company tends to be higher than in the other conditions and higher than regret. Study 2 tested whether consumers who co-produce would take responsibility for a failure and blame themselves in situations where the causal locus was undetermined. The results once again contradicted the self-serving bias literature in a scenario with co-production. Consumers who co-produced experienced more regret and less disappointment towards the company, and they blamed themselves more intensely than the consumers who did not co-produce. Therefore, the consumers who co-produce take more responsibility for dissatisfying results and, consequently, regret their actions to a higher degree than those consumers who do not co-produce. These results show that even when co-production fails to generate a satisfying result for the consumer, it may be positive for the company because it provides a context in which both the consumer and the company may be responsible for the failure. When the company is blamed, consumers experience less regret and more disappointment towards the company than when the consumer is the one to blame. But when the consumer is blamed or the causal locus is uncertain, situations that are both possible in a co-production context, then consumers experience more regret and less disappointment towards the company.

WHO IS TO BLAME? EFFECTS OF CAUSAL LOCUS WHEN CO-PRODUCTION RESULTS ARE UNSATISFACTORY

Larissa Carine Braz Becker,Nat?lia Ara?jo Pacheco,Vinicius Andrade Brei 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.7

Co-production is defined as customer participation in production activities that generate a result to be consumed (Etgar, 2008). Previous research has shown the positive effects of co-production, such as satisfaction, perceived control, and perceived quality (Chan, Yim, & Lam, 2010; Golder, Mitra, & Moorman, 2012; Hunt, Oneto, & Varca, 2012). However, knowledge about the potential negative consequences from co-production is scarce. Despite the importance of the role of causal locus in the generation of unsatisfactory results, to date, this subject has not been properly studied. Considering that co-production is increasingly common in contemporary consumption contexts, this paper aims to broaden knowledge about unsatisfactory results from co-production. Based on two experimental studies, we analyze the role of the causal locus of failures on customer regret and disappointment, taking into consideration the self-serving bias. The results show that a consumption situation with an unsatisfactory regret tends to be higher when the consumer takes the blame than when the causal locus is attributed to the company. When the causal locus is uncertain, regret is higher than disappointment and higher than the regret experienced when the company or the service employee is blamed. Because regret is associated with internal causal attribution, these results contradict the self-serving bias literature, which affirms that people are more likely to make external than internal attributions for failures (Mezulis, Abramson, Hyde, & Hankin, 2004; Weiner, 2010). The internal failure attribution converges with the idea that consumer participation in production implies more responsibility over the result (Bitner, Faranda, Hubbert, & Zeithaml, 1997; Prahalad & Ramaswamy, 2004).When the causal locus is attributed to the company or to the service employee, disappointment towards the company tends to be higher than in the other conditions and higher than regret. Study 2 tested whether consumers who co-produce would take responsibility for a failure and blame themselves in situations where the causal locus was undetermined. The results once again contradicted the self-serving bias literature in a scenario with co-production. Consumers who co-produced experienced more regret and less disappointment towards the company, and they blamed themselves more intensely than the consumers who did not co-produce. Therefore, the consumers who co-produce take more responsibility for dissatisfying results and, consequently, regret their actions to a higher degree than those consumers who do not co-produce. These results show that even when co-production fails to generate a satisfying result for the consumer, it may be positive for the company because it provides a context in which both the consumer and the company may be responsible for the failure. When the company is blamed, consumers experience less regret and more disappointment towards the company than when the consumer is the one to blame. But when the consumer is blamed or the causal locus is uncertain, situations that are both possible in a co-production context, then consumers experience more regret and less disappointment towards the company.

Response of Rootstocks to Stem Canker and Compatibility of Grafting in the Melon Bônus No. 2, and Their Effects on Productivity

Leila T. Braz,Leticia A. Ito,Hamilton C.O. Charlo,Renata Castoldi 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Identification of Races of Bremia lactucae in São Paulo State – Brazil, 2004

Leila T. Braz,Tagli Dalpian,Marco A. Pissardi 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Growth of Broccoli Hybrids in the Summer under Green House and Field Conditions

Leila T. Braz,Alcides A. D. Cintra,Gisele V. G. Grilli 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-