AC line connector with intermediate DC link

An electric power transmission system and method that provides a power electronic interface system for connecting a plurality of alternating current transmission lines by one or more direct current transmission lines. The system includes dc-link converters, frequency transformers connected to the converters, and multilevel converters are connected to a direct current transmission line

Reducing the sugar and pH of the grape (vitis vinifera l. Cvs. 'Grenache' and 'tempranillo') through a single shoot trimming

Many vineyards all over the world can easily produce high potential alcohol levels, but the importance of the sugar content in berries has been changing over the past few years. The objective of this work was to reduce the sugar and pH of the grapes, delay berry ripening by decreasing the ratio between the leaf area and yield, perform an intense trimming treatment after berry set and establish the consequences for grapevine productivity in the following year. Severe shoot trimming was done over a three-year period (2010 to 2012). Phenological, vegetative and productive parameters were examined. The date of véraison was delayed by about 20 days. On the same harvesting date, the trim treatment had lower soluble solids (12% to 15 % reduction), lower pH (0.1 to 0.3) and a lower total anthocyanin content (10% reduction). The trim effect was also reflected in berry weight; as a consequence, bunch size and yield were also reduced by around 10%. If the trim treatment does not reduce the leaf area to fruit ratio below 0.50 m 2/kg, there is no negative impact on vine capacity in the next year.Peer Reviewe

Leaf area reduction by trimming, a growing technique to restore the anthocyanins: Sugars ratio decoupled by the warming climate

The aim of this work is the evaluation of the leaf area reduction by trimming, as a growing technique to restore the anthocyanins: sugars ratio decoupled by the warming climate. A 3-year period (2010-2012) severe shoot trimming treatment was done after berryset (berry diameter 3-4 mm) and the veraison date was delayed around 20 days. The grapes were picked at the same level of soluble solids in all the treatments. However, for every year, the trim treatment significatively increased the total anthocyanin content between 8 % and 21 % compared to control. Therefore, delaying the berry ripening process trough the decrease of the leaf area to fruit ratio, could partially restore the anthocyanins: sugars ratio disrupted by elevated temperatures. Although it is necessary to study other trimmings intensities as well as other times of intervention, the shoot trimming treatment could be a very simple technique to delay berry ripening and compensate the effects of climate warming.Peer Reviewe

Crescentic Glomerulonephritis in IgA Multiple Myeloma: A Case Report

Background: There are few reports of glomerulonephritis (GN) with crescents and a rapidly progressive course that lead to a diagnosis of a previously unsuspected B-cell dyscrasia. Case Presentation: We report a case of rapidly progressive GN: the patient showed no evidence of etiology at the time of biopsy and was diagnosed as IgA multiple myeloma (MM) during investigation based on a renal biopsy. He presented diffuse proliferative and exudative GN and marked plasma cell infiltration of the kidney. Conclusion: The present case raises the possibility that proliferative GN with crescents may be a rare mode of presentation of MM

Atypical mycobacterial dermatitis in cat: a case report

A case of dermatitis caused by atypical mycobateria of Mycobacterium fortuitum peregrinum complex was observed for the first time in Brazil. A five-year-old female mixed breed cat had a dermatitis process which had started eight months before. Lesions were characterized by macules, nodules, erosions, ulcers and exsudative fistulas, with intensive pruritus and pain. It had failed to respond to clinical treatment and surgical excision. The diagnosis was based on history, physical and dermatologic examination and complementary tests (cytologic, bacterioscopic, bacterial culture, histopathological, hemathological, ultrasonographic, radiographic and electrocardiographic). The presence of mycobacteria of Mycobacterium fortuitum-peregrinum complex (group IV of Runyon) was observed and identified after histopathological evidence, bacterial culture and biochemical tests. After two months of systemic therapy with enrofloxacin (5mg/kg, orally/twice a day) and topic treatment with triclosan and rifamicin, rapid improvement of the clinical appearance of the lesions were observed with low incidence of side-effects.Relata-se, pela primeira vez no Brasil, um caso de dermatite decorrente de infecção por micobactéria atípica do complexo Mycobacterium fortuitum-peregrinum, em espécie felina, sem raça definida, fêmea, com cinco anos de idade. Há oito meses, evoluía com lesões maculares equimóticas, nodulares, erosadas, ulceradas, acompanhadas de fístulas exsudativas, com intenso prurido e algia. Evidenciou-se a presença de micobactéria do complexo Mycobacterium fortuitum-peregrinum (grupo IV de Runyon ) identificada após evidenciação histopatológica, cultivo bacteriano e por testes bioquímicos. Após dois meses de terapia sistêmica com enrofloxacina (5mg/kg/Bid/VO) e tópica (triclosan e rifamicina) houve involução das lesões, com efeitos colaterais discretos.USP Faculdade de Medicina Veterinária e ZootecniaUniversidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina (EPM)Instituto BiológicoUNIFESP, EPMSciEL

ESTUDO DAS TENDÊNCIAS DO TOTAL DE PRECIPITAÇÃO E DO NÚMERO DE DIAS PARA EVENTOS EXTREMOS NO LITORAL NORTE, SP

Eventos extremos de chuvas podem tornar-se mais frequentes, aumentando a possibilidade de desastres naturais, tais como grandes inundações e deslizamento de solos. O interesse da sociedade ocorre devido às possíveis perdas materiais e humanas. Assim, as tendências anual e sazonal do número de dias chuvosos e total de precipitação foram estudadas para vários limiares de taxas diárias de precipitação extrema no Litoral Norte de São Paulo. De acordo com o número de dias de chuva, observou-se que houve um aumento de eventos com taxas maiores ou iguais a 50 mm/dia. Para as taxas maiores que 25,4 mm/dia, houve um provável aumento significativo de ambas as tendências para Maresias/SS, Caraguatatuba e Picinguaba/U para o ano, verão e primavera. De acordo com o número de dias chuvosos, observou-se que houve um aumento provável da tendência em Caraguatatuba para taxas maiores ou iguais a 50 mm/dia no ano e outono. Picinguaba/U apresentou provável aumento significante das tendências no inverno e ano. No verão, não houve nenhum caso de tendência significante para 25,4 mm/dia; aumentou significantemente provável em Picinguaba/U e Caraguatatuba para total de precipitação para 50 mm/dia e para ambas as variáveis em Mato Dentro/U, Caraguatatuba e São Francisco/SS para 75 mm/di

A Review of Current Research Trends in Power-Electronic Innovations in Cyber-Physical Systems.

In this paper, a broad overview of the current research trends in power-electronic innovations in cyber-physical systems (CPSs) is presented. The recent advances in semiconductor device technologies, control architectures, and communication methodologies have enabled researchers to develop integrated smart CPSs that can cater to the emerging requirements of smart grids, renewable energy, electric vehicles, trains, ships, internet of things (IoTs), etc. The topics presented in this paper include novel power-distribution architectures, protection techniques considering large renewable integration in smart grids, wireless charging in electric vehicles, simultaneous power and information transmission, multi-hop network-based coordination, power technologies for renewable energy and smart transformer, CPS reliability, transactive smart railway grid, and real-time simulation of shipboard power systems. It is anticipated that the research trends presented in this paper will provide a timely and useful overview to the power-electronics researchers with broad applications in CPSs.post-print2.019 K

Impacto da pandemia pela COVID-19 no perfil de pacientes críticos atendidos por um serviço de hemodiálise

Introduction and objective: Critically ill patients with COVID-19 often progress to acute kidney injury and need for hemodialysis. The aim of this study was to compare the care profile of critically ill patients undergoing renal replacement therapy before and during the COVID-19 pandemic. Methods: Observational study carried out at a university hospital in the city of São Paulo, Brazil. Critical patients undergoing hemodialysis from April to June 2019 and April to June 2020 participated in the study. Data were collected from hemodialysis care documents and electronic medical records. The Chi-square, Mann-Whitney, Shapiro-Wilk, Fisher's exact test were used (5% significance). Results: 212 patients participated, 50 in 2019 and 171 in 2020. In 2019, 30.0% of patients were hospitalized due to acute renal changes, 90.0% had increased entry creatinine, were referred to intensive care after 4.62± 6.38 days and started hemodialysis after 17.26±24.53 days. In 2020, 66.7% were hospitalized for COVID-19, 77.7% had increased entry creatinine, were referred to intensive care after 2.21±3.63 days and started hemodialysis after 10.24±11.99 days . 212 hemodialysis sessions were performed in 2019 and 873 in 2020. There were more deaths in 2020 (p=0.01) and patients with COVID-19 (p=0.014) and hemodynamic instability (p=0.016) were the most affected. Conclusion: In 2020, there was an increase of 3.42 times in the number of critical patients on hemodialysis and an increase of 4.11 times in the number of sessions compared to the year 2019.Introducción y objetivo: Los pacientes críticamente enfermos con COVID-19 a menudo progresan a una lesión renal aguda y necesitan hemodiálisis. El objetivo de este estudio fue comparar el perfil de atención de los pacientes críticamente enfermos sometidos a terapia de reemplazo renal antes y durante la pandemia de COVID-19.Métodos: estudio observacional realizado en un hospital universitario de la ciudad de São Paulo, Brasil. En el estudio participaron pacientes críticos sometidos a hemodiálisis de abril a junio de 2019 y de abril a junio de 2020. Los datos se obtuvieron de documentos de atención de hemodiálisis y registros médicos electrónicos. Se utilizó la prueba de Chi-cuadrado, Mann-Whitney, Shapiro-Wilk, exacta de Fisher (significancia del 5%).Resultados: participaron 221 pacientes, 50 en 2019 y 171 en 2020. En 2019, el 30,0% de los pacientes fueron hospitalizados por alteraciones renales agudas, el 90,0% presentó aumento de creatinina de entrada, fueron remitidos a cuidados intensivos a los 4,62 ± 6,38 días e iniciaron hemodiálisis posteriormente. 17,26 ± 24,53 días. En 2020, el 66,7% fueron hospitalizados por COVID-19, el 77,7% presentó aumento de creatinina de entrada, fueron remitidos a cuidados intensivos a los 2,21 ± 3,63 días e iniciaron hemodiálisis a los 10,24 ± 11,99 días. Se realizaron 212 sesiones de hemodiálisis en 2019 y 873 en 2020. Hubo más muertes en 2020 (p = 0.01) y los pacientes con COVID-19 (p = 0.014) e inestabilidad hemodinámica (p = 0.016) fueron los más afectados.Conclusión: En 2020, hubo un aumento de 3,42 veces en el número de pacientes críticos en hemodiálisis y un aumento de 4,11 veces en el número de sesiones respecto al año 2019.Introdução e objetivo: Frequentemente os pacientes críticos com COVID-19 evoluem para lesão renal aguda e necessidade de hemodiálise. O objetivo deste estudo foi comparar o perfil de atendimento aos pacientes críticos submetidos a terapia de substituição renal antes e durante a pandemia pela COVID-19. Métodos: Estudo observacional realizado em um hospital universitário da cidade de São Paulo, Brasil. Participaram do estudo pacientes críticos em hemodiálise de abril a junho de 2019 e abril a junho de 2020. Os dados foram coletados a partir de documentos de atendimento de hemodiálise e prontuário eletrônico. Foram utilizados os testes de Qui-quadrado, Mann-Whitney, Shapiro-Wilk, Teste Exato de Fisher, (significância de 5%). Resultados: Participaram 221 pacientes, sendo 50 em 2019 e 171 em 2020. Em 2019, 30,0% dos pacientes internaram por alterações renais agudas, 90,0% apresentaram creatinina de entrada aumentada, foram encaminhados para terapia intensiva após 4,62±6,38 dias e iniciaram hemodiálise após 17,26±24,53 dias. Em 2020, 66,7% internaram por COVID-19, 77,7% tiveram creatinina de entrada aumentada, foram encaminhados para terapia intensiva após 2,21±3,63 dias e iniciaram a hemodiálise após 10,24±11,99 dias. Foram realizadas 212 sessões de hemodiálise em 2019 e 873 em 2020. Houve mais óbitos em 2020 (p=0,01) e os pacientes com COVID-19 (p=0,014) e instabilidade hemodinâmica (p=0,016) foram os mais acometidos. Conclusão: Em 2020, foi observado aumento de 3,42 vezes no número de pacientes críticos em hemodiálise e aumento de 4,11 vezes no número de sessões quanto comparado ao ano de 2019