Abstract This report describes the photoacoustic and electron paramagnetic resonance investigations of Brazilian and Cuban zeolites. Photoacoustic optical absorption measurements indicate the presence of iron (Fe 3 +) ions with their respective transition bands for both zeolites. Two species of manganese (Mn 2 + and Mn 3 +) were identified in the Cuban sample and the electronic transitions assigned. Iron and manganese ions were confirmed through nonradiative relaxation ( τ) and characteristic diffusion ( τ β) times evaluation, whose values were found to be τ BRA = 5.40 ms, τ CUB = 4.60 ms, τ β BRA = 387 μs and τ β CUB = 305 μs. Crystal field (Dq- BRA/Dq- CUB = 1048 cm − 1/945 cm − 1) plus Racah (B- BRA/B- CUB = 457 cm − 1/813 cm − 1 and C- BRA/C- CUB = 3655 cm − 1/2496 cm − 1) parameters were assessed as well. Paramagnetic resonance corroborated Fe 3 + ions present in the Brazilian zeolite occupying sites showing axial and/or rhombic symmetry distortions. For the Cuban sample, results reveal the characteristic hyperfine sextet lines of Mn 2 + overlapping the Fe 3 + line. Values of Landé factor and isotropic hyperfine splitting constant were found to be 2.0 and 9.7 mT, respectively. This tells us that the Mn 2 + lies in octahedral symmetry probably replacing calcium ions and point towards an ionic bonding character of the Mn 2 + and its surroundings.

CONTEXTO: O aneurisma de artéria renal (AAR) é incomum e, em geral, assintomático, mas podem ocorrer complicações como rotura ou embolia de trombos do aneurisma com consequente infarto renal. A maioria dos achados clínicos é encontrada acidentalmente por exames de imagem na investigação de outras doenças. O autotransplante renal (ATR) constitui-se em alternativa de tratamento de AAR com resultados satisfatórios descritos na literatura.RELATO DE CASO: Paciente masculino, 48 anos, com histórico de hipertensão arterial sistêmica, plaquetopenia e esquistossomose hepatoesplênica avançada. Referia dor lombar direita que após exames de imagem (tomografia computadorizada e angiotomografia) revelou AAR direita com 2,5 cm de diâmetro não tratável por via endovascular após avaliação da equipe de cirurgia vascular. O tratamento realizado foi uma nefrectomia aberta direita com preservação renal em solução, seguida de aneurismectomia, sutura da artéria lesada e reimplante do rim na fossa ilíaca direita com anastomoses dos vasos ilíacos e do ureter. O tempo cirúrgico e de isquemia renal foram de 385 e 140 minutos, respectivamente. Recebeu alta hospitalar no vigésimo dia do pós-operatório, com concentrações de creatinina de 1,4 mg/dL, ureia de 41 mg/dL, volume urinário de 1400 mL/24 h e ascite tratada com diuréticos.CONCLUSÃO: O ATR está indicado basicamente em três casos: reconstrução extracorpórea de aneurismas complexos do pedículo renal, lesão ureteral extensa e cirurgia conservadora de câncer renal em pacientes com único rim. Este estudo apresenta caso de paciente com doença hepática avançada e AAR intratável por método endovascular e tratado com sucesso por ATR.

CONTEXT: Renal artery aneurysm (RAA) is uncommon and usually asymptomatic, but complications like rupture or thromboembolism of the aneurysm can occur, with consequent renal infarction. Most of the clinical findings are found incidentally through imaging examinations, in investigating other diseases. Renal autotransplantation (RAT) is an alternative treatment for complex RAA, with satisfactory results described in the literature.CASE REPORT: The patient was a 48-year-old man with a history of systemic arterial hypertension, thrombocytopenia and advanced hepatosplenic schistosomiasis. He complained of right lumbar pain, which was investigated through imaging examinations (computed tomography and angiotomography). These revealed right RAA of 2.5 cm in diameter. Evaluation by the vascular surgery team found that this was untreatable using endovascular methods. The treatment performed was open right nephrectomy with kidney preservation in solution, followed by aneurysmectomy, suturing of the injured artery and kidney reimplantation in the right iliac fossa with anastomosis of the iliac vessels and ureter. The durations of the surgery and kidney ischemia were 385 and 140 minutes, respectively. The patient was discharged on the 20th postoperative day, with creatinine concentration of 1.4 mg/dL, urea 41 mg/dL, urine volume 1400 mL/24 h and ascites treated with diuretics.CONCLUSION: RAT is indicated basically in three situations: extracorporeal reconstruction of complex aneurysms of the renal pedicle, extensive ureteral injury, and conservative kidney cancer surgery in patients with a single kidney. This study presents a case of a patient with advanced liver disease and RAA that was untreatable using endovascular methods and was successfully treated using RAT.

Este artigo tem como objetivo apresentar à comunidade ortodôntica um novo material denominado esporão lingual colado Nogueira®. Este material foi idealizado e desenhado com base nos princípios dos esporões tradicionais, sendo desenvolvido e produzido pela companhia Abzil para realização de uma pesquisa clínica no tratamento da deglutição atípica por pressionamento lingual. Este material pode ser aplicado tanto no arco superior como no inferior, depois de realizado o diagnóstico da posição lingual atípica. São apresentados três casos clínicos de pacientes tratados com o referido sistema associado ao tratamento ortodôntico. Os três pacientes submeteram-se ao exame de eletromiografia (EMG), antes e 10 meses após o inicío do tratamento para avaliação neuromuscular. Os músculos avaliados foram o masseter, temporal anterior, digástrico anterior e orbicular inferior da boca, avaliando a atividade muscular (µv) e o tempo de contração muscular (s) durante a deglutição. Os resultados obtidos foram uma melhor relação interarcos tanto nos sentidos ântero-posterior, vertical e transversal com o uso dos aparelhos ortopédicos e ortodônticos utilizados e melhora nas funções de deglutição, fonação e repouso, isto provavelmente ocorreu porque não foram encontrados nenhum sinal ou ferimento na língua. Em relação à Eletromiografia (EMG) houve uma redução nos potenciais (µv) dos músculos peribucais digástrico anterior e orbicular inferior da boca com aumento do seu tempo de contração (s) resultando em uma menor atividade protrusiva da língua durante a deglutição.

This article has the objective of presenting the orthodontic community with a new material denominated Nogueira ® lingual bonded spur. This material was idealized and designed based on the principals of traditional spurs being developed and produced by the Abzil Company to realize a clinical research of atypical deglutition by lingual pressure. This material can be applied on both the upper or lower arch, after atypical lingual position diagnostic has been realized. Are presented three clinical cases of patients treated using the referred system associated to orthodontic treatment. Both patients were subjected to electromyography (EMG) exams beforehand, and 10 months after the beginning of treatment for the neuromuscular evaluation. The muscles that were evaluated were masseter, anterior temporal, anterior digastrics, and lower orbicular of the mouth, evaluation of the muscular activity (µupsilon) and the time of muscular contraction during deglutition(s). The obtained results were of a better inter arch relation in antero-posterior, vertical and transversal with the use of orthopedic appliances and used orthodontically and a better functioning of deglutition, phonation, and rest, this probably happened because no mark or wound was found on the tongue. In relation to the electromyography (EMG) there was a reduction of potentials (µupsilon) of the anterior digastrics peribuccal muscle and the lower orbicular of the mouth with an increase of contraction time, resulting in less protrusive activity of the tongue during deglutition.