Búsqueda | SciELO

ABSTRACT The standardized precipitation-evapotranspiration index (SPEI) is a widely used probability-based method that categorizes drought and wet events based on their expected frequency of occurrence. Regional frequency analysis based on L-moments (RFA-Lmom) is often employed to enhance probabilistic assessments of extreme hydrological data, which typically assume positive values. This study investigated whether applying the RFA-Lmom regionalization technique to the difference between precipitation and potential evapotranspiration (P-PE), the input variable for SPEI, can improve the index’s ability to meet the normality assumption. We conducted analyses using Monte Carlo experiments, accounting for distinct climate conditions worldwide, and a case study in the watershed of the Piracicaba, Capivari and Jundiaí rivers, situated in the states of São Paulo and Minas Gerais, Brazil. In this region, P-PE frequency distributions may exhibit negative and positive sample means. Our findings suggested that modifying the RFA-Lmom method by replacing the L-moment ratio L-CV with the L-moment scale measure and using an additive model (instead of the original multiplicative procedure) for SPEI calculation allows the application of this regionalization technique to P-PE amounts. This adapted RFA-Lmom consistently enhanced the ability of SPEI frequency distributions to meet their normality assumption, thereby improving the quality of drought assessments based on this standardized index. precipitationevapotranspiration (SPEI probabilitybased probability occurrence Lmoments L moments RFALmom RFA Lmom (RFA-Lmom data values PPE, PPE P PE , (P-PE) indexs s assumption experiments worldwide Piracicaba rivers Gerais Brazil region means Lmoment moment LCV CV instead procedure amounts (P-PE

https://doi.org/10.1590/1678-4499.20240029

LAPAROTOMIC RADIOFREQUENCY ABLATION OF PANCREATIC INSULINOMA
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

CANSI, Allan Rubens Zucolotto

; VITOR, Jhonatan de Souza

; LOPES, João Felipe da Silva

; GLÓRIA, Rogério Dardengo

ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2024, Volumen 37 elocation e1819

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT Insulinomas are rare neoplasms of the endocrine pancreas. Minimally invasive treatment options for insulinomas have gained prominence, replacing surgical resection due to its associated morbidity and mortality. Radiofrequency ablation (RFA) has emerged as a relevant treatment option. We present a case of a female patient with neuroglycopenic symptoms and severe hypoglycemic crises. The abdominal magnetic resonance imaging (MRI) showed a small nodular lesion in the pancreatic body. Laparotomy was performed, followed by RFA using a 15-mm active-tipped needle. No complications transpired, and no hypoglycemic episodes were observed during 12 months of follow-up. pancreas prominence mortality (RFA option crises MRI (MRI body performed 15mm mm 15 activetipped active tipped needle transpired 1 followup. followup follow up. up follow-up

RESUMO Os insulinomas são neoplasias raras do pâncreas endócrino. As opções de tratamento minimamente invasivas para os insulinomas têm ganhado destaque, substituindo a ressecção cirúrgica, devido à morbimortalidade associada. A ablação por radiofrequência (ARF) surgiu como uma opção de tratamento relevante. Apresentamos o caso de uma paciente do sexo feminino com sintomas neuroglicopênicos e crises hipoglicêmicas graves. A ressonância magnética (RM) abdominal revelou pequena lesão nodular no corpo pancreático. Foi realizada laparotomia seguida de ARF com agulha de ponta ativa de 15 mm. Nenhuma complicação ocorreu e nenhum episódio de hipoglicemia foi observado durante 12 meses de acompanhamento. endócrino destaque cirúrgica associada (ARF relevante graves RM (RM pancreático 1 mm acompanhamento

https://doi.org/10.1590/0102-6720202400026e1819

III BRAZILIAN CONSENSUS STATEMENT ON ENDOSCOPIC ULTRASOUND
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

PESSOA, Ricardo Rangel de Paula

; BESTETTI, Alexandre Moraes

; OLIVEIRA, Victor Lira de

; ARAUJO, Wladimir Campos de

; GUARALDI, Simone

; RODRIGUES SILVA, Rodrigo Roda

; OLIVEIRA, Francisco Antonio Araujo

; RIBEIRO, Maria Sylvia Ierardi

; CARNEIRO, Fred Olavo Aragão Andrade

; D’ASSUNÇÃO, Marco Aurélio

; MEDRADO, Bruno Frederico Oliveira Azevedo

; RETES, Felipe Alves

; PAULO, Gustavo Andrade de

; SCHNEIDER, Nutianne Camargo

; ROSSINI, Lucio Giovanni Battista

; VALLINOTO, Leonardo

; ARDENGH, Jose Celso

; COELHO NETO, Djalma Ernesto

; IDE, Edson

; SILVA, Marcos Clarencio Batista

; FRANCO, Matheus Cavalcante

; MATUGUMA, Sergio Eiji

; MOURA, Diogo Turiani Hourneaux de

; ARANTES, Vitor Nunes

; NAHOUM, Rafael

; BRUNALDI, Vitor Ottoboni

; SANTOS, Marcos Eduardo Lera dos

; CHAVES, Dalton Marques

; MICELLI-NETO, Otávio

; SALOMAO, Bruno Chaves

; MALUF-FILHO, Fauze

; LUZ, Gustavo de Oliveira

Arquivos de Gastroenterologia

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2024, Volumen 61 elocation e24062

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Contexto: Nas últimas décadas, a ecoendoscopia evoluiu de uma ferramenta diagnóstica para uma plataforma para diversas intervenções terapêuticas. Vários avanços tecnológicos surgiram desde o último Consenso Brasileiro, demandando uma revisão e atualização das recomendações baseadas nas melhores evidências científicas. Métodos: Um grupo de 32 ecoendoscopistas renomados selecionou oito tópicos relevantes para serem discutidos a fim de gerar questões clínicas. Em seguida, foi realizada uma revisão da literatura para responder a essas perguntas com base nas evidências mais atualizadas. Resultados: Trinta e três tópicos foram formulados e votados pelos especialistas para alcançar um consenso. O Sistema de Oxford foi utilizado para classificar o nível de evidência. Conclusão: Há evidências moderadas para sustentar que a forma da agulha, calibre ou técnica de aspiração não influenciam no rendimento da amostragem tecidual guiada por ultrassom endoscópico (USE) de lesões sólidas pancreáticas. Há evidências moderadas para sustentar o uso da biópsia transcutânea guiada por USE da parede cística para diferenciar entre neoplasias císticas mucinosas e não mucinosas. Existem poucas evidências para apoiar o tratamento guiado por USE de varizes gástricas. Há um alto nível de evidência para sustentar que a drenagem biliar guiada por USE e a CPRE apresentam resultados semelhantes em pacientes com obstrução biliar maligna distal. Há um alto nível de evidência para o uso da USE no diagnóstico de cistos pancreáticos neoplásicos e na detecção de necrose antes de indicar a drenagem. Há evidências moderadas para sustentar a preferência pela gastroenterostomia guiada por USE em relação ao stent duodenal para obstrução maligna da saída gástrica em pacientes com expectativa de vida superior a 2 meses. Há um alto nível de evidência para sustentar o uso da ablação por radiofrequência no tratamento de ambos os tipos, funcionantes e não funcionantes, de tumores neuroendócrinos. Contexto décadas terapêuticas Brasileiro científicas Métodos 3 clínicas seguida atualizadas Resultados consenso Conclusão agulha (USE pancreáticas gástricas distal meses tipos neuroendócrinos

ABSTRACT Background: In the past decades, endoscopic ultrasound has developed from a diagnostic tool to a platform for many therapeutic interventions. Various technological advancements have emerged since the last Brazilian Consensus, demanding a review and update of the recommendations based on the best scientific evidence. Methods: A group of 32 renowned echoendoscopists selected eight relevant topics to be discussed to generate clinical questions. After that, a literature review was conducted to answer these questions based on the most updated evidence. Results: Thirty-three statements were formulated and voted on by the experts to reach a consensus. The Oxford System was used to grade the level of evidence. Conclusion: There is moderate evidence to support that the needle shape, gauge, or aspiration technique does not influence the yield of endoscopic ultrasound (EUS)-guided tissue sampling of pancreatic solid lesions. There is moderate evidence to support using EUS-TTNB of the cyst wall to differentiate between mucinous and non-mucinous cystic neoplasms. There is little evidence to support the EUS-guided treatment of gastric varices. There is a high level of evidence to support that EUS-guided biliary drainage and ERCP present similar outcomes in patients with distal malignant biliary obstruction. There is a high level of evidence for using EUS to diagnose neoplastic pancreatic cysts and detect necrosis before indicating drainage. There is moderate evidence to support EUS-GE over duodenal stent for malignant gastric outlet obstruction in patients with a life expectancy higher than 2 months. There is a high level of evidence to support the use of RFA in treating both functioning and non-functioning types of NET. Background decades interventions Consensus Methods 3 Results Thirtythree Thirty three consensus Conclusion shape gauge EUSguided guided lesions EUSTTNB TTNB nonmucinous non neoplasms varices EUSGE GE months nonfunctioning NET

https://doi.org/10.1590/s0004-2803.24612024-062

Regional Frequency Analysis for the Prediction of Maximum Flows in Ungauged Basins of the Peruvian Amazon
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Lujano, Efrain

; Belizario, German

; Lujano, Apolinario

Revista Brasileira de Meteorologia

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Oct 2022, Volumen 37 Nº 4 Paginas 503 - 516

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

Abstract The estimation of the maximum design flow is important for flood management. However, the limited existence of gauged sites and the scarcity of hydrological measurements make it impossible to estimate them in ungauged basins. In this study, the regional frequency analysis (RFA) was carried out for the prediction of maximum flows in ungauged basins of the Peruvian Amazon. The methodology consisted of the identification of homogeneous regions, selection of the regional distribution function, estimation of regional quantiles, regionalization of the index-flood, and the prediction of maximum flows in ungauged basins. The results have identified a well-defined homogeneous region called region 1. The generalized extreme value (GEV) distribution proved to be more adequate to represent the data sample of region 1, and the basin area explained the variability of the index-flood in 99.4% (R2 = 0.994). The prediction of maximum flows in ungauged basins presented wide ranges of uncertainty, mainly for high return periods. It is concluded that the RFA provides reliable estimates for the prediction of maximum flows as long as the uncertainty ranges are considered at each frequency. management However study (RFA Amazon regions function quantiles indexflood, indexflood index flood, welldefined well defined 1 GEV (GEV 994 99 4 99.4 R2 R (R 0.994. 0994 0.994 . 0 0.994) periods 9 99. 099 0.99 09 0.9 0.

Resumo A estimativa da vazão máxima de projeto e importante para o gerenciamento de inundações. No entanto, a existência limitada de sítios calibrados e a escassez de medições hidrológicas impossibilitam sua estimativa em bacias não calibradas. Neste estudo, a análise de frequência regional (RFA) foi realizada para a previsão de vazões máximas em bacias não calibradas da Amazônia peruana. A metodologia consistiu na identificação de regiões homogêneas, seleção da função de distribuição regional, estimação de quantis regionais, regionalização do índice de inundação e previsão de vazões máximas em bacias não calibradas. Os resultados identificaram uma região homogênea bem definida chamada região 1. A distribuição de valores extremos generalizados (GEV) mostrou-se mais adequada para representar a amostra de dados da região 1, e a área da bacia explicou a variabilidade do cheia-índice em 99,4% (R2 = 0,994). A previsão de vazões máximas em bacias não calibradas apresentou amplas faixas de incerteza, principalmente para períodos de retorno alto. Conclui-se que o RFA fornece estimativas confiáveis para a previsão de vazões máximas desde que sejam consideradas as faixas de incerteza em cada frequência. inundações entanto estudo (RFA peruana homogêneas regionais 1 GEV (GEV mostrouse mostrou se cheiaíndice cheia 994 99 4 99,4 R2 R (R 0,994. 0994 0,994 . 0 0,994) alto Concluise Conclui 9 99, 099 0,99 09 0,9 0,

https://doi.org/10.1590/0102-77863440052

Evaluation of the effect of nanosilica and recycled fine aggregate in Portland cement rendering mortars
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Lima, Geannina Terezinha dos Santos

; Zaleski, Alessandra

; Tambara Júnior, Luís Urbano Durlo

; Rocha, Janaíde Cavalcante

; Pelisser, Fernando

; Gleize, Philippe Jean Paul

Revista IBRACON de Estruturas e Materiais

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2022, Volumen 15 Nº 5 elocation e15509

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Esta pesquisa teve como objetivo avaliar a incorporação da nanossílica (NS) em argamassas de reboco produzidas com agregado fino reciclado (RFA). Inicialmente, foi realizado um estudo em pastas cimentícias substituindo o cimento Portland por NS nos teores de 0%, 0,4%, 0,6%, 0,8% e 1,0%. As amostras foram submetidas a análises de espalhamento, reologia, calorimetria, difração de raios X (DRX), espectroscopia de infravermelho por transformada de Fourier (FTIR) e resistência à compressão aos 28 dias. Os resultados demonstraram que as pastas com 0,4% NS e 0,6% NS apresentaram aumento de resistência de 55% e 58%, respectivamente, devido à maior formação de silicato de cálcio hidratado (C-S-H), quando comparada à pasta de referência. Diante disso, foram produzidas as amostras de RFA, substituindo o cimento Portland por 0% NS, 0,4% NS e 0,6% NS. Aos 28 dias, o desempenho mecânico, a microestrutura e a durabilidade foram avaliados por meio da resistência à flexão e compressão, microscopia eletrônica de varredura (MEV), módulo de elasticidade dinâmico e absorção de água por capilaridade. A partir dos resultados, concluiu-se que as amostras de RFA com 0,4% NS resultaram no teor ótimo de nanossílica, produzindo um aumento na resistência à compressão e redução na sorptividade de água, em relação às demais misturas. As imagens de MEV sugerem que NS reagiu com a portlandita formada a partir da hidratação do cimento, resultando em um enchimento eficiente dos poros do RFA, melhorando o desenvolvimento microestrutural das amostras.

ABSTRACT This paper evaluated the incorporation of nanosilica (NS) in rendering mortars produced with recycled fine aggregate (RFA). Initially, a study was carried out on cementitious pastes, replacing Portland cement with NS at levels of 0%, 0.4%, 0.6%, 0.8%, and 1.0%. The samples were submitted to scattering, rheology, calorimetry, x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and compressive strength analysis at 28 days. The results demonstrated that the pastes with 0.4% NS and 0.6% NS presented an increase in strength of 55% and 58%, respectively, due to a greater formation of calcium silicate hydrate (C-S-H), when compared with the reference paste. From that, the RFA samples were produced, replacing Portland cement with 0% NS, 0.4% NS, and 0.6% NS. At 28 days, mechanical performance, microstructure, and durability were evaluated by means of flexural strength and compression, scanning electron microscopy (SEM), dynamic elasticity module, and water absorption by capillarity. From the results, it was concluded that the RFA samples with 0.4% NS resulted in the optimal nanosilica content, increasing compressive strength values and reducing the sorptivity, in relation to the other mixtures. The SEM images suggest that NS reacted with portlandite formed of the cement hydration, improving the microstructural development of the samples.

https://doi.org/10.1590/s1983-41952022000500009

Comparación de dos técnicas para el recuento de folículos antrales <4 mm en ovarios de vaquillas sacrificadas
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics

Loor Mendoza, Ingrid Josselyn

; José Zambrano, Juan

; Jácome Aucay, Andrés Santiago

; Dutan Sanango, Jorge Bolívar

; Ayala Guanga, Luis Eduardo

Revista de Producción Animal

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2021, Volumen 33 Nº 3 Paginas 26 - 38

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT Aim. To compare the efficiency of the ultrasound and direct visual techniques for antral follicle counts, and the morphological characteristics of the ovaries of slaughtered heifers. Methods: A number of 102 ovary pairs from crossbred Holstein heifers collected postmortem were included. The study used the ultrasound and direct visual techniques to determine the size and weight of the ovaries, luteal body, and the number of <4 mm >4 mm antral follicles. A simple analysis of variance and the Tukey test at 5% were performed to compare the means of the variables pooled by phase of the estrus cycle and follicular wave. A two-way analysis of variance was performed to compare the two techniques and location of the ovarian structures (RO and LO). Additionally, the Pearson test was conducted to establish the correlation between the techniques. Results: The study found that the right ovary (RO) weighed 3.21 g more than the left ovary (LO). Besides, 86.27% of animals presented luteal body (LB) with a mean weight of 3.38 g. The size of ovaries, (LB), and > 4 mm antral follicle counts (AFC) performed through direct visual (Vis) and ultrasound (US) techniques were similar (P>0.05), with a high and significant correlation (r=0.75; P<0.001). However, the <4 mm AFC showed statistically significant differences (P<0.05) between the techniques, whereas the correlation was low and non-significant. Conclusion: Ultrasound is a highly efficient tool to assess > 4 mm ovarian structures. However, the correct determination of smaller structures will depend on other additional factors.

RESUMEN Objetivo. Comparar la eficiencia de la técnica ultrasonográfica con la visual directa en el recuento de folículos antrales y las características morfológicas ováricas de vaquillas sacrificadas. Métodos: Se utilizaron 102 pares de ovarios de vaquillas Holstein mestizas, recuperados post-mortem. Mediante las técnicas ultrasonográfica y visual directa se determinó tamaño y peso del ovario, cuerpo lúteo y número de folículos antrales <4 mm y >4 mm. Se aplicó un análisis de varianza simple (ANOVA) y la prueba de Tukey al 5% para comparar medias de las variables agrupadas por fase del ciclo estral y fase de onda folicular y para comparar las técnicas y ubicación de las estructuras ováricas (OD y OI) se utilizó un análisis de varianza de dos vías. Además, se aplicó la prueba de Pearson para establecer correlación entre las dos técnicas. Resultados: Se determinó que el ovario derecho (OD) pesó 3,21 g más que el ovario izquierdo (OI). Además, el 86,27% de los animales presentaron cuerpo lúteo (CL), con peso medio de 3,38 g. El tamaño de los ovarios, CL y el recuento de folículos antrales (RFA) >4 mm establecidos mediante las técnicas visual directa (Vis) y ultrasonográfica (US) fueron similares (P>0,05) y guardaban correlación alta y significativa (r=0,75; P<0,001). Sin embargo, el RFA <4 mm presentaron diferencia estadística (P<0,05) entre las dos técnicas y la correlación fue baja y no significativa. Conclusión: La ultrasonografía es una herramienta con una alta eficiencia en la valoración de estructuras ováricas mayores a 4 mm. Sin embargo; la determinación correcta de estructuras menores, va a depender de otros factores adicionales.

Evaluación de diferentes niveles de radiación sobre la densidad estomática de tomate (Solanum lycopersicum L.)
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Zárate-Martínez, William

; Arellano-García, Marco Antonio

; Ramírez-Godina, Francisca

; Moreno-León, Karina

; González-Sandoval, Dulce Concepción

Ecosistemas y recursos agropecuarios

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2021, Volumen 8 Nº 3 elocation e3009

Resumen: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen: El objetivo de esta investigación fue evaluar el efecto de distintos niveles de radiación fotosintéticamente activa (RFA) sobre las variables estomáticas en las hojas de plantas de tomate. Los tratamientos fueron los siguientes: T1 = 25%, T2 = 35%, T3 = 50%, T4 = 60% y T5 = 75% de bloqueo de RFA. Se calculó en la superficie adaxial y abaxial: densidad de estomas, índice estomático, largo y ancho de estomas en las hojas 4 y 9. Se encontró mayor densidad de estomas en la superficie abaxial que en la superficie adaxial, y en la hoja 4 mayor densidad estomática que en la hoja 9; en la hoja 4 el rango de la densidad de estomas fue de 105 a 219 estomas·mm-2 y de 86.9 a 132.9 estomas·mm-2 en las superficies abaxial y adaxial respectivamente, sin embargo, los estomas de mayor tamaño se encontraron en las hojas número 9. La radiación modifica a nivel estomático a las plantas de tomate.

Abstract: The objective of this research was to evaluate the effect of different levels of photosynthetically active radiation (RFA) on the stomatal variables in the leaves of tomato plants. The treatments were as follows: T1 = 25%, T2 = 35%, T3 = 50%, T4 = 60% and T5 = 75% RFA blockade. Stomata density, stomatal index, stomatal length and width were calculated on the adaxial and abaxial surfaces in leaves 4 and 9. A higher stomatal density was found in the abaxial surface than in the adaxial surface, and in leaf 4 greater stomatal density than in leaf 9; in leaf 4 the stomata density range was from 105 to 219 stomata · mm-2 and from 86.9 to 132.9 stomata · mm-2 on the abaxial and adaxial surfaces respectively, however, the largest stomata were found in leaves number 9. Radiation modifies tomato plants at the stomatal level.

https://doi.org/10.19136/era.a8n3.3009 18 descargas

Efficiency of photosynthetically active radiation interception associated with morphological traits in canola cultivars
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics

Nicolau Follmann, Diego

; Henrique Nied, Astor

; Rocha, Leidiana da

; Colet, Fabiano

; Tascheto Bolzan, Felipe

; Wartha, Cleiton Antonio

; Cargnelutti Filho, Alberto

; Newton Martin, Thomas

Idesia (Arica)

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Jun 2021, Volumen 39 Nº 2 Paginas 101 - 110

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT The interception of photosynthetically active radiation (PAR) is a key factor for biological productivity, and its magnitude depends on the availability of solar radiation, the stage of the plant development cycle, and the arrangement of plant structures. Given the arrangement of the vegetative and reproductive structures in different portions in the canola canopy, the objetive of the study was to morphologically characterize canola cultivars and establish relationships with the stratification of the efficiency of PAR intercep tion. Eight canola cultivars were evaluated in regards to PAR and plant morphological traits. Following the analysis of variance, treatment means were grouped, and the phenotypic correlation matrix between the traits was determined. We observed a strong relationship between the PAR interception efficiency of vegetative and reproductive structures with morphological traits. Plants with a higher number of branches have more siliques and greater efficiency of PAR interception, mainly through the reproductive structures. The characterization of morphological differences between canola cultivars in the PAR interception efficiency should be performed by measures stratified by vegetative and reproductive structures.

RESUMEN La interceptación de radiación fotosintéticamente activa (ARF) es importante para la productividad biológica y su magnitud depende de la disponibilidad de radiación solar, la etapa del ciclo de desarrollo de la planta y la disposición de las estructuras de la planta. Dada la disposición de las estructuras vegetativas y reproductivas de la canola en diferentes porciones del perfil del dosel de las plantas, el objetivo del trabajo fue buscar la caracterización morfológica de cultivares de canola y establecer relaciones con la estratificación de la eficiencia de interceptación de la radiación fotosintéticamente activa. Se evaluaron ocho cultivares de canola, se midió la ARF y se evaluaron los caracteres morfológicos de la planta. Se realizaron análisis de varianza, agrupamiento de medias y se determinó la matriz de correlación fenotípica entre los caracteres. Se observó una alta relación entre la eficiencia de interceptación de la RFA de estructuras vegetativas y reproductivas con caracteres morfológicos. Las plantas con mayor número de ramas tienen más sílice y mayor eficiencia en la interceptación de la radiación fotosintéticamente activa, principalmente debido a las estructuras reproductivas. La caracterización de las diferencias morfológicas entre cultivares de canola en la eficiencia de interceptación de la RFA debe realizarse mediante medidas estratificadas por estructuras vegetativas y reproductivas.

71 descargas

Radiofrequency ablation as a treatment for tachycardiomyopathy induced by premature ventricular contractions in the tricuspid annulus
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Aquino Bruno, Heberto

; Sánchez Escobedo, Yeiscimin

; Añas Méndez, Mariana Lourdes

; Bozada Nolasco, Karla Ivette

; Fuente Macip, Carlos De la

; Enríquez Silverio, Arturo

; Rojel Martínez, Ulises

Cardiovascular and metabolic science

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2020, Volumen 31 Nº 4 Paginas 126 - 130

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract: Introduction: Most ventricular arrhythmias are related to structural heart disease. When they occur in anatomically normal hearts are known as idiopathic arrhythmias. The highest percentage of premature ventricular complexes (PVC) is originated in the right ventricular outflow tract. However, less frequent sites have been described, such as the tricuspid annulus. Irregular rhythm along with a high percentage of arrhythmic burden (AB) have an important role in the deterioration of left ventricular function. Objective: To describe the return to normal ventricular function after PVC radiofrequency ablation (RFA). Case study: A 75-year-old man, without relevant history, presented with mild exertion dyspnea and frequent palpitations. The physical examination was normal, the 12-lead electrocardiogram showed premature ventricular contractions with a left bundle branch block (LBBB) pattern and superior axis. A Holter monitoring documented a 35% arrhythmic burden and transthoracic echocardiography demonstrated an LVEF of 40% and global hypokinesia, without valvular heart disease. An electrophysiological study was conducted with three-dimensional mapping that observed the origin of the PVC at the septal tricuspid annulus. RFA was performed in this area, resulting in the immediate disappearance of PVC. Results: At 3 months a 24-hour Holter monitoring showed 0.02% of AB and a transthoracic echocardiogram showed LVEF of 65%. Conclusion: Premature ventricular contractions originating from the tricuspid annulus are an uncommon cause of tachycardiomyopathy and RFA treatment is safe and effective.

Resumen: Introducción: La mayoría de las arritmias ventriculares están relacionadas con patología estructural del corazón; cuando ocurren en corazones anatómicamente normales se consideran arritmias idiopáticas. El mayor porcentaje de los complejos ventriculares prematuros (CVP) se atribuyen al tracto de salida del ventrículo derecho; sin embargo, se han identificado sitios menos frecuentes como el anillo tricuspídeo. La asincronía y el ritmo irregular junto con un alto porcentaje de la carga arrítmica (CA) tienen un rol importante en el deterioro de la función ventricular izquierda. Objetivo: Describir la normalización de la función ventricular posterior a ablación con radiofrecuencia de los CVP. Caso clínico: Hombre de 75 años de edad, sin antecedentes de importancia; acudió por presentar disnea de medianos esfuerzos y palpitaciones frecuentes. La exploración física fue normal, el electrocardiograma de 12 derivaciones mostró CVP con patrón de bloqueo de rama izquierda; un monitoreo Holter documentó 35% de carga arrítmica, un ecocardiograma transtorácico reportó FEVI de 40% e hipocinesia generalizada, sin valvulopatías. Se decidió realizar estudio electrofisiológico con mapeo tridimensional, donde se observó el origen de las CVP a nivel del septal del anillo tricuspídeo, se procedió a ablación con radiofrecuencia en dicha zona, lo que mostró desaparición inmediata de las extrasístoles. Resultados: A los tres meses, un monitoreo Holter de 24 h reportó sin evidencia de arritmias ventriculares y un ecocardiograma transtorácico demostró FEVI de 65%. Conclusión: Los complejos ventriculares prematuros del anillo tricuspídeo son una causa rara de cardiomiopatía, el tratamiento mediante ablación con radiofrecuencia es una terapia eficaz y segura.

https://doi.org/10.35366/97544

10.

Balance potasio:calcio, relación con el déficit de presión de vapor y la radiación fotosintéticamente activa en tomate de invernadero
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Salas-Rivera, Ramiro

; Valdez-Aguilar, Luis Alonso

; Alvarado-Camarillo, Daniela

; Rascón-Alvarado, Emilio

; Peña-Ramos, Fidel Maximiano

; González-Fuentes, José Antonio

Terra Latinoamericana

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Jun 2020, Volumen 38 Nº 2 Paginas 301 - 311

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Summary: Greenhouse tomato production requires technical knowledge such as the management of the nutrient solution and its interaction with environmental conditions. Imbalances between nutrients such as potassium (K) and calcium (Ca) can occur in the nutrient solution; Moreover, the flow of sap and nutrients translocation are affected by the vapor pressure deficit (VPD) and photosynthetically active radiation (PAR). The present study was carried out with the objective to determine the optimal balance of K and Ca depending on VPD and PAR prevailing during the development of the fruits of 10 clusters in tomato; the first five clusters were developed during the spring, while the clusters sixth to tenth during the summer. Plants were irrigated with solutions whose K:Ca balance was: 0.54, 0.64, 0.78, and 0.82. The balance did not affect fruit quality in spring, although in summer, balances 0.64 and 0.78 reduced soluble solids. In spring, fruit yield in each of the five clusters was influenced by the K:Ca balance as well as by the VPD; the clusters had a higher fruit production when the K:Ca balance was 0.64 and the VPD was 2.81 KPa. During the summer, the highest yield in fruits was in plants treated with a balance of 0.54 and the VPD was 2.50 or 2.74 KPa. The K:Ca balance during the spring correlated negatively with the VPD, however, in the summer, the correlation was positive. In spring, the K:Ca optimum balance should be 0.78-0.82 when PAR reached a maximum of 102‑142 µmol m-2 s-1, while extreme PAR levels should be accompanied by a reduction in the K:Ca balance.

Resumen: La producción de tomate en invernadero demanda el conocimiento de factores técnicos como el manejo de la solución nutritiva y la interacción de ésta con las condiciones del ambiente. En la solución nutritiva pueden ocurrir desbalances entre nutrimentos como el potasio (K) y calcio (Ca); a su vez, el flujo de la savia y la translocación de éstos está influenciado por el por déficit de presión de vapor (DPV) y radiación fotosintéticamente activa (RFA). El presente estudio se realizó con los objetivos de determinar el balance óptimo de K y Ca en función del DPV y RFA prevalecientes durante el desarrollo de los frutos de los primeros 10 racimos en tomate; los primeros cinco racimos se desarrollaron durante la primavera, mientras que los racimos sexto al décimo durante el verano. Las plantas se irrigaron con soluciones nutritivas cuyos balances K:Ca fueron: 0.54, 0.64, 0.78, y 0.82. Los balances no afectaron calidad de frutos en primavera, aunque en verano, los balances 0.64 y 0.78 redujeron los sólidos solubles. En primavera, el rendimiento en cada uno de los cinco racimos estuvo influenciado por el balance K:Ca así como por el DPV; los racimos tuvieron un mayor rendimiento cuando el balance K:Ca fue de 0.64 y el DPV fue de 2.81 KPa. Durante el verano, el rendimiento más alto fue en plantas tratadas con un balance de 0.54 y el DPV fue 2.50 o 2.74 KPa. El balance K:Ca durante la primavera se correlacionó negativamente con el DPV, sin embargo, en el verano, la correlación fue positiva. El balance K:Ca óptimo debe ser de 0.78-0.82 al subir la RFA hasta un máximo de 102-142 µmol m-2 s-1, mientras que niveles extremos de RFA deben ir acompañados de una reducción en el balance K:Ca.

https://doi.org/10.28940/terra.v38i2.589 596 descargas

11.

Comparison of different approaches to small saphenous vein reflux treatment: a retrospective study in two centers
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Kubat, Emre

; Ünal, Celal Selçuk

; Geldi, Onur

; Çetin, Erdem

; Keskin, Aydin

; Karapınar, Kasım

Sao Paulo Medical Journal

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Mar 2020, Volumen 138 Nº 2 Paginas 98 - 105

Resumen: En | Texto: En | PDF: En

ABSTRACT BACKGROUND: Diagnosis and treatment of small saphenous vein (SSV) insufficiency is of utmost importance for relieving chronic venous insufficiency symptoms. OBJECTIVES: To investigate the efficacy and safety of five different treatment approaches among patients with SSV insufficiency. DESIGN AND SETTING: Two-center retrospective clinical study, conducted at cardiovascular surgery clinics in a local training and research hospital and a state hospital. METHODS: A total of 282 extremities of 268 patients with SSV insufficiency alone who were treated for symptomatic varicose veins between January 2012 and January 2017 were included in the study. All extremities included in the study were divided into five groups as follows: high ligation + stripping; radiofrequency ablation (RFA); cyanoacrylate closure (CAC); and endovenous laser ablation (EVLA) at the wavelengths 980 nm and 1,470 nm. RESULTS: Although the recurrence rate at six months was similar among the treatment groups, we found significant differences in recurrence rates at one year, with lower rates in the CAC, RFA and 1,470 nm EVLA groups, compared with the other treatments (P = 0.005). No sural neuritis was observed in the CAC group. The pigmentation rate was higher in the two EVLA groups (980 nm and 1,470 nm). CONCLUSIONS: Our study results showed that although CAC, RFA and EVLA at 1,470 nm seemed to be effective methods for treating SSV insufficiency alone, CAC and RFA had better aesthetic results than EVLA at 1,470 nm. We consider that endovenous non-thermal techniques for treating SSV insufficiency may be preferable because of relatively low risk of nerve injury.

https://doi.org/10.1590/1516-3180.2019.0230.r1.06112019 790 descargas

12.

Photosynthetically active radiation in strawberry produced in stair-like containers
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Velasco-López, Federico

; Martínez-Gutiérrez, Gabino A

; Morales, Isidro

; Vasquez-López, Alfonso

; Escamirosa-Tinoco, Cirenio

Horticultura Brasileira

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Ene 2020, Volumen 38 Nº 1 Paginas 5 - 11

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Em sistemas de cultivo hidropônico intensivos, como os verticais e piramidais, a radiação fotossinteticamente ativa (PAR) e integrada (RFAI) podem diminuir ao longo dos recipientes de cultivo e do dossel das plantas localizados nos estratos mais inferiores, diminuindo a produtividade e a qualidade dos frutos. No presente estudo foi avaliado o efeito da altura e da orientação geográfica dos recipientes de cultivo hidropônico, em um sistema escalariforme, na RFA, na RFAI, e na produção e qualidade de frutos de morango. Em cada altura e orientação, as variáveis RFA, RFAI, produtividade e qualidade dos frutos foram registrados. A orientação leste-oeste dos recipientes de cultivo foi diferente na parte da manhã e da tarde para a RFA e RFAI recebidas pelas plantas de morango em todas as alturas dos recipientes, enquanto que os valores médios diários foram iguais. A produtividade foi, em média, 47% mais elevada nas plantas cultivadas a 0.50, 0.80 e 1.10 m de altura do recipiente de cultivo, em comparação com as plantas cultivadas a 0.20 m de altura. A qualidade de frutos também foi melhor nos três recipientes de cultivo mais elevados.

ABSTRACT In intensive hydroponic systems, such vertical and pyramidal systems, photosynthetically active radiation (PAR) and integrated (IPAR) may be intercepted by the containers and the leaf area of the plants grown in the upper strata, decreasing fruit yields and quality. The objective of this study was to evaluate the behavior of PAR and IPAR at different planting heights and the effect of geographic orientation and fruit yield and quality of strawberry produced in stair-like containers. The factors were four heights of the container (0.20, 0.50, 0.80 and 1.10 m) and two orientations (east and west). At each height and orientation of the container, PAR and IPAR, yield and fruit total soluble solids were measured. PAR and IPAR were statistically different at all heights evaluated and were highest in the highest containers. The east and west orientation of the containers was significantly different in the morning and in the afternoon for PAR and IPAR, while daily average values were equal. Yield on average was 47% higher in plants cultivated in containers at heights of 0.50, 0.80 and 1.10 m, relative to those in 0.20 m high containers. Fruits grown in the highest containers had higher values of total soluble solids.

https://doi.org/10.1590/s0102-053620200101 840 descargas

13.

Radiofrequency catheter ablation increases mean platelet volume
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Aksoy, Fatih

Revista da Associação Médica Brasileira

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Ago 2019, Volumen 65 Nº 8 Paginas 1080 - 1085

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO OBJETIVOS A ablação por radiofrequência (ARF) pode aumentar o risco de eventos tromboembólicos. O objetivo foi avaliar o efeito da ARF no volume plaquetário médio (VPM), um indicador de atividade plaquetária. MÉTODO No total de 95 pacientes submetidos à ARF, o VPM foi medido antes e um mês após o procedimento. Oitenta e três pessoas do mesmo sexo e faixa etária constituíram o grupo controle. RESULTADOS Betabloqueadores, bloqueadores dos canais de cálcio não diidropiridínicos e uso de ácido acetilsalicílico foram maiores no grupo ablação quando comparados ao grupo controle. Outras características clínicas basais e hemoglobina basal, contagem de leucócitos, contagem de plaquetas e valores de VPM foram semelhantes entre os grupos de ablação e controle. No grupo de ablação, linha de base e hemoglobina pós-procedimento, as contagens de glóbulos brancos foram semelhantes. No entanto, os valores de VPM pós-procedimento foram maiores e as contagens de plaquetas foram menores em comparação com os valores pré-procedimento. CONCLUSÕES Nossos resultados indicam que os valores de VPM são maiores após a ARF em comparação com os valores basais.

SUMMARY OBJECTIVE Radiofrequency ablation (RFA) may increase the risk of thromboembolic events. The objective of this study was to evaluate the effect of RFA on mean platelet volume (MPV), an indicator of platelet activity. METHODS A total of 95 patients undergoing RFA were included in the study. MPV was measured before and one month after the procedure. The control group was formed by 83 individuals of the same sex and age as those in the study group. RESULTS Beta-blockers, non-dihydropyridine calcium channel blockers, and acetylsalicylic acid use was higher in the ablation group compared with the control group. Other baseline clinical characteristics and baseline hemoglobin, white blood cell count, platelet count, and MPV values were similar between the ablation and control groups. In the ablation group, baseline and post-procedural hemoglobin, white blood cell counts were similar. However, postprocedural MPV values were higher, and platelet counts were lower compared with the preprocedural values. CONCLUSION Our results indicate that MPV values are higher after RFA compared with baseline values.

https://doi.org/10.1590/1806-9282.65.8.1080 1110 descargas

14.

Convocatoria a Proyectos de Investigación "Salud Investiga 2019-2020"
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics

Carbonelli, Carla

; Fernández, Mariana

; Mejía, Raúl

Revista Argentina de Salud Pública

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Jun 2019, Volumen 10 Nº 39 Paginas 48 - 511

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract As part of the Universal Health Coverage strategy and in commemoration of the 40th anniversary of Alma-Ata's Declaration on Primary Health Care and the Astana Declaration in 2018, Directorate for Health Research launched the Request for Applications (RFA) for Research Projects "Salud Investiga 2019- 2020". This RFA funded projects on thematic areas prioritized by directorates and programs of the Health Government Secretariat, in order to generate scientific evidence for decision making by health teams and health authorities. Researchers from public or private non-profit entities were invited to submit 2-year projects for up to $2,000,000 each. 117 projects were submitted and 25 were selected to receive funding after different evaluation stages. The selected projects will involve 183 researchers, 75% are women, 35% are from research institutions and 29% from hospital institutions. 58% of this researchers work in the public sector.

Resumen En el marco de la estrategia de la Cobertura Universal de Salud y en conmemoración de los 40 años de la declaración de Alma-Ata sobre Atención Primaria de la Salud y de la declaración de Astaná de 2018, la Dirección de Investigación para la Salud convocó para la presentación de Proyectos de Investigación "Salud Investiga 2019-2020". La convocatoria financió proyectos sobre áreas temáticas y lineamientos priorizados por direcciones y programas de la Secretaría de Gobierno de Salud, con el propósito de generar evidencia científica que aporte a la toma de decisiones de los equipos de salud y las autoridades sanitarias. Se invitó a investigadores de entidades públicas o privadas sin fines de lucro a presentar proyectos de 2 años de duración por un monto de hasta $2.000.000 cada uno. Se presentaron 117 proyectos de los cuales 25 fueron seleccionados para recibir financiación a través de distintas etapas de evaluación. Los proyectos ganadores involucrarán a 183 investigadores de los cuales el 75 % son mujeres, el 35% pertenece a instituciones de investigación y el 29% a instituciones del ámbito hospitalario. El 58% de estos investigadores se desempeña en el ámbito público.

205 descargas

15.

Agronomic behavior of piquin pepper ecotypes under photoselective covers
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Paredes-Jácome, José Rafael

; Mendoza-Villarreal, Rosalinda

; Perez-Rodriguez, Miguel Ángel

; Robledo-Torres, Valentín

; Moreno-Limón, Sergio

Ingeniería agrícola y biosistemas

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Jun 2019, Volumen 11 Nº 1 Paginas 53 - 67

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract Introduction: The use of colored shading nets and greenhouses is a strategy to improve the use of solar radiation and regulate temperature, in addition to increasing productivity in horticultural crops. Objective: To evaluate the effect of different photoselective covers on agronomic variables in wild piquin pepper ecotypes. Methodology: Microclimatic variables and photosynthetically active radiation (PAR) were measured from transplanting seedlings, and agronomic variables at 40 days after transplant and at the last cut of the cycle (160 days). Results: Temperature, relative humidity and PAR changed with the use of the different covers. Blue netting reduced PAR by 50.10 % compared to the open field. Principal component analysis grouped the uncovered cultivated plants with the lowest results in the evaluated variables, and the RTZ ecotype revealed the greatest tendency towards quadrant 1, with most of the variables. The yield in the white netting increased 1 290.9 % compared to that obtained in the field. Study limitations: The study generated information only for the plant genetic resources of the Northeast Region of Mexico. Originality: The crop is not domesticated, so this work was done under different shade netting covers and a greenhouse. Conclusions: White netting favored the development of the ecotypes, with RTZ being the one that presented the best values, which is why this combination is considered viable for the preservation and production of this species on a large scale.

Resumen Introducción: El uso de malla sombra de colores e invernaderos es una estrategia para aprovechar la radiación solar y regular la temperatura, además de incrementar la productividad de los cultivos hortícolas. Objetivo: Evaluar el efecto de diferentes cubiertas fotoselectivas sobre variables agronómicas en ecotipos de chile piquín silvestre. Metodología: Las variables microclimáticas y radiación fotosintéticamente activa (RFA) se midieron desde el trasplante de la planta, y las variables agronómicas a los 40 días después del trasplante y al último corte del ciclo (160 días). Resultados: La temperatura, humedad relativa y RFA cambiaron con el uso de las diferentes cubiertas. La malla azul redujo 50.10 % la RFA en comparación con la incidente en campo abierto. El análisis de componentes principales agrupó a las plantas cultivadas sin cubierta con los menores resultados en las variables evaluadas, y el ecotipo RTZ reveló mayor tendencia hacia el cuadrante 1 en la mayoría de las variables. El rendimiento con malla blanca incrementó 1 290.9 % en comparación con el obtenido en campo. Limitaciones del estudio: El estudio únicamente genera información de los recursos fitogenéticos propios de la Región Noreste de México. Originalidad: El cultivo no está domesticado, por lo que este trabajo aporta el estudio bajo diferentes cubiertas de malla sombra y un invernadero. Conclusiones: La malla blanca favoreció el desarrollo de los ecotipos, siendo RTZ el que presentó los mejores valores, por lo que se considera viable esta combinación para la preservación y producción a gran escala.

https://doi.org/10.5154/r.inagbi.2018.05.011 611 descargas

Mostrar

itens por página

Página de 5 Próxima

Seleccione uno o más resultados

Todos Ordem alfabética

Resultados

Gráfico comparativo Descargar CSV

Visualizar estadísticas de

Enviar resultado

E-mail do(s) destinatário(s)*

Utilize ; (punto y coma) para más de un correo.

Enviar por correo-e

Esta página

Registros seleccionados

Todas las referencias (max. 300)

Su email

Asunto

Comentarios

Formato de exportación:

RIS (para EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citación

CSV (para Excel, etc)

Exportar:

Esta página

Itens seleccionados

Todas las referencias (max. 2000)

Sem resultados

No se encontraron documentos para su búsqueda

Glosario y ayuda para la búsqueda

Ud. puede enriquecer su búsqueda de una forma muy sencilla. Use los índices de búsqueda combinados con los conectores (AND u OR) para especificar su busca.

Por ejemplo, si desea buscar artículos acerca de
casos de dengue en el Brasil en 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

A continuación se muestra la lista completa de los índices de búsqueda que se pueden utilizar:

Cód. del Índice	Elemento
ti	título del articulo
au	autor
kw	palabras clave del artículo
subject	asunto (palabras del título, resumen y palabras clave)
ab	resumen
ta	título abreviado de la revista (ej. Cad. Saúde Pública)
journal_title	título completo de la revista (ej. Cadernos de Saúde Pública)
la	código de idioma de publicación (ej. pt - Portugués, es - Español)
type	tipo de documento
pid	identificador de la publicación
publication_year	año de publicación del artículo
sponsor	financiador
aff_country	código del país de la afiliación del autor
aff_institution	institución de filiación del autor
volume	volumen del artículo
issue	número del artículo
elocation	elocation
doi	número DOI
issn	ISSN de la revista
in	código de la colección SciELO (ej. scl - Brasil, col - Colômbia)
use_license	código de licencia de uso del artículo

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

Todo el contenido de este sitio www.scielo.br, excepto dónde está identificado, está bajo una Licencia de Atribución Creative Commons.
sepa más »