Search | SciELO

ABSTRACT Vermiculite mining residues, although of low solubility, contain nutrients such as calcium, magnesium, and potassium at concentrations that allow their agricultural use. Beneficial bacteria can increase the solubility of this waste and its efficiency. The objective of the present study was to evaluate the influence of bio-inoculation of vermiculite residue, associated with cattle manure, on the release of nutrients and initial growth of maize. A completely randomized design was performed in a greenhouse with seven treatments and four replications. The treatments were: T1 - soil without fertilization; T2 - soil fertilized with soluble sources of nutrients (conventional fertilization); T3 - application of vermiculite residue (VR); T4 - VR enriched with cattle manure (CM); T5 - VR + CM with Bacillus subtilis; T6 - VR + CM + B. amyloliquefaciens, and T7 - VR + CM +B. subtilis + B. amyloliquefaciens). Regardless of the use of cattle manure or beneficial microorganisms, vermiculite mining waste increased the availability of Ca and K in the soil, but was not able to match the soluble sources of nutrients. Mining waste associated with cattle manure and beneficial microorganisms (B. subtilis and B. amyloliquefaciens) increased microbial activity and enhanced the release of available calcium for maize. VR increased the growth and the dry mass production of maize compared to the non-fertilized soil, but was consistently inferior to conventional fertilizer.

RESUMO Os resíduos da mineração de vermiculita, embora de baixa solubilidade, contêm nutrientes como cálcio, magnésio e potássio em concentrações que permitem seu uso agrícola. Bactérias benéficas podem aumentar a solubilidade deste resíduo e sua eficiência. Objetivou-se avaliar a influência da bioinoculação do resíduo de vermiculita, associado ao esterco bovino, na liberação de nutrientes e no crescimento inicial do milho. Foi realizado delineamento inteiramente casualizado em casa de vegetação com sete tratamentos e quatro repetições. Os tratamentos foram: T1 - solo sem adubação; T2 - solo adubado com fontes solúveis de nutrientes (fertilização convencional); T3 - aplicação de resíduo de vermiculita (VR); T4 - VR enriquecido com esterco bovino (CM); T5 -VR+CM com Bacillus subtilis; T6 - VR + CM + B. amyloliquefaciens e T7 - VR + CM + B. subtilis + B. amyloliquefaciens). O VR aumentou a disponibilidade de Ca e K no solo, porém seu desempenho foi inferior às fontes solúveis. Independentemente da utilização de esterco bovino ou de microrganismos benéficos, os resíduos da mineração de vermiculita aumentaram a disponibilidade de Ca e K no solo, mas não foram capazes de igualar as fontes solúveis de nutrientes. Os resíduos de mineração associados ao esterco bovino e aos microrganismos benéficos (B. subtilis e B. amyloliquefaciens) aumentaram a atividade microbiana e aumentaram a liberação de cálcio disponível para o milho. Os resíduos da mineração de vermiculita aumentaram o crescimento e a produção de massa seca do milho em comparação ao solo não fertilizado, mas foram consistentemente inferiores ao fertilizante convencional.

https://doi.org/10.1590/1807-1929/agriambi.v28n2e273189

Chemical quality and bioactive compounds of sweet potatoes under phosphate fertilization
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Oliveira, Pablo H. de A.

; Oliveira, Anna K. S. de

; Coêlho, Ester dos S.

; Silva, Valécia N. S. e

; Lopes, Welder de A. R.

; Santos, Gisele L. dos

; Ribeiro, João E. da S.

; Silva, Antonio G. C. da

; Santos Júnior, José T. dos

; Barros Júnior, Aurélio P.

; Silveira, Lindomar M. da

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 28 N. 1 elocation e274451

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Sweet potato is among the most important food crops in the world. Due to its high genetic diversity, this species has cultivars that can respond in different ways depending on mineral fertilization. Among the nutrients, phosphorus is related to physiological and biochemical processes that can influence the final quality of the product. This study aimed to assess the influence of P doses on the quality and bioactive compounds of sweet potato cultivars - Paraná, BRS Amélia, and BRS Cuia. The pH, soluble solids (SS), titratable acidity (TA), SS/TA ratio, soluble sugars, and the bioactive compounds - flavonoids, anthocyanins, and carotenoids - were evaluated. The P doses influenced sweet potato cultivars. The dose of 120 kg ha-1 promoted increments in the parameters pH, SS, TA, and SS/TA ratio for the cultivar BRS Cuia. The same dose promoted an increase in total soluble sugars for the cultivar BRS Amélia. P dose of 240 kg ha-1 promoted higher levels of flavonoids and anthocyanins in the cultivar Paraná, and there was an increase in carotenoid content at the dose of 60 kg ha-1.

RESUMO A batata-doce está entre as culturas alimentícias mais importantes do mundo. Por apresentar alta diversidade genética, essa espécie possui cultivares que podem responder de maneiras diferentes em função da adubação mineral. Dentre os nutrientes, o fósforo está relacionado com processos fisiológicos e bioquímicos que podem influenciar na qualidade final do produto. Este estudo teve como objetivo avaliar a influência de doses de P na qualidade e compostos bioativos de cultivares de batata-doce - Paraná, BRS Amélia e BRS Cuia. Foram avaliados o pH, sólidos solúveis (SS), acidez titulável (AT), relação SS/AT, açúcares solúveis e os compostos bioativos - flavonoides, antocianinas e carotenoides. As doses de P influenciaram as cultivares de batata-doce. A dose de 120 kg ha-1 promoveu incrementos nos parâmetros pH, SS, AT e relação SS/AT para a cultivar BRS Cuia. A mesma dose promoveu incrementos nos açúcares solúveis totais para a cultivar BRS Amélia. A dose de 240 kg ha-1 promoveu maiores teores de flavonoides e antocianinas na cultivar Paraná, e houve aumento no teor de carotenoides na dose de 60 kg ha-1.

https://doi.org/10.1590/1807-1929/agriambi.v28n1e274451

[SciELO Preprints] - Cardiovascular Statistics – Brazil 2023
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Oliveira, Gláucia Maria Moraes de Brant, Luisa Campos Caldeira Polanczyk, Carisi Anne Malta, Deborah Carvalho Biolo, Andreia Nascimento, Bruno Ramos Souza, Maria de Fatima Marinho de Lorenzo, Andrea Rocha De Fagundes Júnior, Antonio Aurélio de Paiva Schaan, Beatriz D. Silva, Christina Grüne de Souza e Castilho, Fábio Morato de Cesena, Fernando Henpin Yue Soares, Gabriel Porto Xavier Junior, Gesner Francisco Barreto-Filho, Jose Augusto Soares Passaglia, Luiz Guilherme Pinto-Filho, Marcelo Martins Machline-Carrion, M. Julia Bittencourt, Marcio Sommer Pontes Neto, Octavio M. Villela, Paolo Blanco Teixeira, Renato Azeredo Stein, Ricardo Sampaio, Roney Orismar Gaziano, Thomaz A. Perel, Pablo Roth, Gregory A. Ribeiro, Antonio Luiz Pinho

Journal Metrics
- Sobre o periódico
- SciELO Analytics

Publication date: 2023-12-14

Abstract: En Pt

The publication Cardiovascular Statistics – Brazil aims to provide an annual compilation of data and research on the epidemiology of CVDs in Brazil.  The report integrates official statistics from the Brazilian Ministry of Health and other governmental entities alongside data from the GBD project, coordinated by the IHME at the University of Washington. Additionally, it incorporates data derived from various sources and scientific studies, including cohorts and registries, that relate to CVDs and their associated risk factors. This publication is intended for a wide range of individuals, including researchers, clinicians, patients, healthcare policymakers, media professionals, the general public, and other interested parties seeking extensive national data about heart disease and stroke.  Volunteer researchers from various Brazilian universities and research institutions carry out the project. The group is led by a five-member steering committee (ALPR, CAP, DCM, GMMO, and LCCB). The Brazilian Society of Cardiology fully supports this initiative, and the project receives collaborative support from the GBD Brazil Network and an International Committee (GAR, PP, and TAG) from both the IHME/University of Washington (GAR) and the World Heart Federation (PP and TAG). 

A publicação Estatística Cardiovascular – Brasil tem por objetivo fornecer uma compilação anual dos dados e das pesquisas sobre a epidemiologia das DCV no Brasil.  Este documento integra as estatísticas oficiais do Ministério da Saúde do Brasil e outras entidades governamentais ao lado de dados do projeto GBD, coordenado pelo IHME da Universidade de Washington. Além disso, incorpora dados derivados de várias fontes e estudos científicos, inclusive coortes e registros, relacionados às DCV e fatores de risco associados. Esta publicação destina-se a um público variado, incluindo pesquisadores, clínicos, pacientes, formuladores de políticas de saúde, profissionais da mídia, o público em geral e todos aqueles que buscam dados nacionais abrangentes sobre DCV e acidente vascular cerebral. Pesquisadores voluntários de várias universidades e instituições de pesquisa brasileiros realizaram este projeto. O grupo é liderado por um comitê diretivo com cinco membros (ALPR, CAP, DCM, GMMO e LCCB). A Sociedade Brasileira de Cardiologia apoia integralmente esta iniciativa e o projeto recebe colaboração da Rede GBD Brasil1 e do GBD International Committee (GAR, PP e TAG) do IHME/Universidade de Washington (GAR) e da World Heart Federation (PP e TAG). 

https://doi.org/10.1590/SciELOPreprints.7707

Long-term oncological and surgical outcomes after Video Endoscopic Inguinal Lymphadenectomy (VEIL) in patients with penile cancer
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Tobias-Machado, Marcos

; Ornellas, Antonio A.

; Hidaka, Alexandre K.

; Medina, Luis G.

; Mattos, Pablo A. L.

; Besio, Ruben S.

; Abreu, Diego

; Castro, Pedro R.

; Nishimoto, Ricardo H.

; Astigueta, Juan

; Dourado, Aurus

; Machado, Roberto D.

; Magnabosco, Wesley J.

; Corona-Montes, Victor

; Villoldo, Gustavo M.

; Zampolli, Hamilton C.

; Taha, Anis

; Auad, Pericles R.

; Faria, Eliney F.

; Arantes, Paulo B. O.

; Tavares, Alessandro

; Nascimento, Francisco S. M. S.

; Brazão Jr., Eder S.

; Rocha, Maurício M.

; Costa, Walter H.

; Panico, Vinicius

; Reis, Leonardo O.

; Almeida-Carrera, Roberto J.

; Silva, Rafael C.

; Zequi, Stênio C.

; Calixto, José R. R.

; Sotelo, Rene

International braz j urol

Journal Metrics
- Sobre o periódico
- SciELO Analytics

oct 2023, Volume 49 N. 5 Pages 580 - 589

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: To report outcomes from the largest multicenter series of penile cancer patients undergoing video endoscopic inguinal lymphadenectomy (VEIL). Materials and Methods: Retrospective multicenter analysis. Authors of 21 centers from the Penile Cancer Collaborative Coalition-Latin America (PeC-LA) were included. All centers performed the procedure following the same previously described standardized technique. Inclusion criteria included penile cancer patients with no palpable lymph nodes and intermediate/high-risk disease and those with non-fixed palpable lymph nodes less than 4 cm in diameter. Categorical variables are shown as percentages and frequencies whereas continuous variables as mean and range. Results: From 2006 to 2020, 210 VEIL procedures were performed in 105 patients. Mean age was 58 (45-68) years old. Mean operative time was 90 minutes (60-120). Mean lymph node yield was 10 nodes (6-16). Complication rate was 15.7%, including severe complications in 1.9% of procedures. Lymphatic and skin complications were noted in 8.6 and 4.8% of patients, respectively. Histopathological analysis revealed lymph node involvement in 26.7% of patients with non-palpable nodes. Inguinal recurrence was observed in 2.8% of patients. 10y- overall survival was 74.2% and 10-y cancer specific survival was 84.8%. CSS for pN0, pN1, pN2 and pN3 were 100%, 82.4%, 72.7% and 9.1%, respectively. Conclusion: VEIL seems to offer appropriate long term oncological control with minimal morbidity. In the absence of non-invasive stratification measures such as dynamic sentinel node biopsy, VEIL emerged as the alternative for the management of non-bulky lymph nodes in penile cancer.

https://doi.org/10.1590/s1677-5538.ibju.2023.0065

Selection of lima bean accessions for fresh and dry production
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Damas, Loren R.

; Barroso, Priscila A.

; Assunção Neto, Wilson V. de

; Lopes, Angela C. de A.

; Silva Junior, José V. da

; Gomes, Regina L. F.

; Medeiros, Artur M.

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2023, Volume 27 N. 8 Pages 625 - 631

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The selection of lima bean accessions in the fresh and dry stages is an excellent tool to increase crop yield in Brazil and ensure a source of vegetable protein for the population. Principal component analysis and nonparametric indices can be used to identify promising accessions based on the desired agronomic variables. The aim of the present study was to select accessions from traditional lima bean varieties in the fresh and dry stages using principal component analysis and nonparametric selection indices. The experiment consisted of a randomized block design, evaluating 13 treatments in four replicates. The experimental plot contained 20 plants in its study area. The first two principal components for the two stages explained more than 80% of the variation found among the accessions. The Mulamba & Mock and Genotype-Ideotype selection indices were efficient in classifying promising varieties for breeding programs. The UFPI 1111 accession can be used in fresh lima bean production, and its UFPI 1248 and 1294 counterparts in lima bean breeding programs.

RESUMO A seleção de acessos de feijão-fava nos estádios verde e seco é uma excelente ferramenta para aumentar a produtividade da cultura no país e garantir uma fonte de proteína vegetal para a população. O uso de componentes principais e índices de seleção não-paramétricos podem ser utilizados para identificar acessos promissores com base em características agronômicas desejáveis. O objetivo do presente estudo foi selecionar acessos de variedades crioulas de feijão-fava nos estádios frescos e secos utilizando componentes principais e índices de seleção não paramétricos. O experimento foi disposto em delineamento em blocos casualizados, sendo avaliados 13 tratamentos em quatro repetições. A parcela experimental conteve 20 plantas em sua área útil. Os dois primeiros componentes principais, para os dois estádios, explicaram mais de 80% da variação encontrada entre os acessos. Os índices de seleção de Mulamba & Mock e Genótipo-Ideótipo foram eficientes na classificação de variedades promissoras para programas de melhoramento. O acesso UFPI 1111 pode ser direcionado para a produção de fava verde, e os acessos UFPI 1248 e UFPI 1294 podem ser utilizados para programas de melhoramento de fava seca.

https://doi.org/10.1590/1807-1929/agriambi.v27n8p625-631

Characterization of Flavonoids Profiles in Polar Extracts from Croton grewioides Baill. Using Ultra-High Resolution Mass Spectrometry Baill UltraHigh Ultra High
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Nascimento, Pedro E. S. do

; Prado, Vilma M. J.

; Jesus, Raphael A. de

; Silva, Wenes R. da

; Wisniewski Jr., Alberto

; Sá Filho, José C. F.

; Blank, Arie F.

; Souza, Daniel A. de

; Wartha, Elma R. S. A.

; Nogueira, Paulo C. L.

; Moraes, Valéria R. S.

Journal of the Brazilian Chemical Society

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jul 2023, Volume 34 N. 7 Pages 937 - 948

Abstract: En | Text: En | PDF: En

Research to identify plant bioactive compounds led to the evolution of extraction methods. This study optimized ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) to extract the flavonoids of Croton grewioides Baill. species contributing to characterize the polar extract profile and understand the antioxidant potential of these plant constituents. The use of experimental design and statistical treatments enabled the determination of the ideal conditions for each technique. The extracts of five accessions of C. grewioides were obtained under the optimized extraction conditions and were analyzed using ultra high-resolution mass spectrometry (FT-Orbitrap MS) operating at negative ionization mode for flavonoids detection. The accurate experimental mass obtained to the main compounds was used to attribute the molecular formula. Chemical structures of the main compounds detected were proposed using structure data bases. Chemometric analysis were performed with two FT-Orbitrap MS spectra samples using the identified metabolites and, the antioxidant activity data, showing that for this species the MAE was most effective in extracting the antioxidant compounds. It was possible to propose the structures for forty compounds in the C. grewioides extracts, demonstrating the excellent performance of the FT-Orbitrap MS in providing information on the chemical profile of polar compounds in plant extracts. methods ultrasoundassisted ultrasound assisted UAE (UAE microwaveassisted microwave (MAE Baill constituents technique C highresolution high resolution FTOrbitrap FT Orbitrap detection formula bases

https://doi.org/10.21577/0103-5053.20230004

Guía de práctica clínica para el manejo del cáncer de pulmón de células pequeñas: enfermedad extensa
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Cabrera-Miranda, Luis A.

; Díaz-García, Diego A.

; Corona-Cruz, José F.

; Lozano-Ruiz, Francisco J.

; Sánchez-Reyes, Roberto

; Álvarez-Bojórquez, Mario E.

; Blake-Cerda, Mónika

; Rivera-Márquez, Raúl

; López-Saucedo, Raúl A.

; Pérez-Álvarez, Sandra I.

; Bolaño-Guerra, Laura M.

; Alatorre-Alexander, Jorge A.

; Alexander-Meza, Francisco

; Barrón-Barrón, Feliciano

; Blanco-Vázquez, Yazmín C.

; Campos-Gómez, Saúl

; Mata-Moya, Dolores de la

; Figueroa-Martínez, Pedro

; González-Cisneros, Paulina E.

; Íñiguez-García, Marco A.

; Lázaro-León, Jesús M.

; Loyola-García, Ulises

; Morales-Rivera, Marcelino

; Olivares-Torres, Carlos

; Ramos-Ramírez, Maritza

; Sáenz-Frías, Julia A.

; Silva-Bravo, Fernando

; Trejo-Rosales, Rogelio

; Souto-del Bosque, Miguel

; Arrieta, Óscar

Gaceta mexicana de oncología

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2023, Volume 22 N. 2 Pages 55 - 73

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Antecedentes: El cáncer de células pequeñas (CPCP) representa el 13-15% del total de neoplasias primarias de pulmón. Se caracteriza por su rapidez en la tasa de crecimiento y en el desarrollo de metástasis a distancia. Objetivos: Orientar y estandarizar el tratamiento del CPCP enfermedad extensa en México basado en evidencia clínica nacional e internacional. Material y métodos: Este documento se desarrolló como una colaboración del Instituto Nacional de Cancerología y la Sociedad Mexicana de Oncología en cumplimiento con estándares internacionales. Se integró un grupo conformado por oncólogos médicos, cirujanos oncólogos, cirujanos de tórax, radio-oncólogos y metodólogos con experiencia en revisiones sistemáticas de la literatura y guías de práctica clínica. Resultados: Se consensaron, por el método Delphi y en reuniones a distancia, las recomendaciones en CPCP enfermedad extensa, producto de preguntas de trabajo. Se identificó y evaluó la evidencia científica que responde a cada una de dichas preguntas clínicas antes de incorporarla al cuerpo de la guía. Conclusión: Esta guía proporciona recomendaciones clínicas para el manejo de la enfermedad extensa del CPCP y durante el proceso de toma de decisiones de los clínicos involucrados con su manejo en nuestro país para mejorar la calidad de la atención clínica para estos pacientes.

Abstract Background: Small cell lung cancer (SCLC) represents 13-15% of all primary lung neoplasms and is characterized by its rapid growth rate and the rapid development of distant metastases. Objectives: To guide and standardize the treatment of extensive disease small cell lung cancer in Mexico based on national and international clinical evidence. Material and methods: This document was developed as a collaboration between the National Cancer Institute and the Mexican Society of Oncology in compliance with international standards. An interdisciplinary group was formed, including medical oncologists, oncological surgeons, thoracic surgeons, radiation oncologists, and methodologists with experience in systematic reviews of the literature and clinical practice guidelines. Results: A consensus was reached, both by the Delphi method and in remote meetings, of extensive disease recommendations resulting from work questions. The scientific evidence that answers each of these clinical questions was identified and critically evaluated, before being incorporated into the body of evidence of the Guide. Conclusions: This Clinical Practice Guide provides clinical recommendations for the management of extensive disease of SCLC to contribute to the decision-making process of the clinicians involved with its management in our country, hoping that this will contribute to improving the quality of clinical care in these patients.

https://doi.org/10.24875/j.gamo.22000122

Chemical attributes of an ultisol cultivated with sugarcane after application of high doses of vinasse
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Costa, Monalisa S.

; Rolim, Mário M.

; da Silva, Gerônimo F.

; Santos Júnior, José A.

; Pedrosa, Elvira M. R.

Revista Caatinga

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2023, Volume 36 N. 2 Pages 402 - 413

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The use of high doses of vinasse in sugarcane crop can cause modifications in the chemical characteristics of the soil. The aim of this study was to evaluate the effect of the application of high doses of vinasse on the chemical characteristics of an Ultisol cultivated with sugarcane for 210 days. The treatments used were doses equivalent to 0 (D0), 150 (D150), 300 (D300), 600 (D600) and 1200 (D1200) m3 ha-1 of vinasse plus a control treatment with mineral fertilization. The experimental design was completely randomized with six treatments and six repetitions. Exchangeable potassium (K), calcium (Ca), magnesium (Mg) and sodium (Na) contents, organic matter, cation exchange capacity, sodium adsorption ratio, exchangeable sodium percentage, electrical conductivity and pH were analyzed at 90, 120, 150 and 210 days after planting (DAP), in addition to microbial basal respiration at 210 days at depths of 0-0.20 and 0.20-0.40 m. Soil pH increased with the use of vinasse within the proper range for sugarcane, varying from 6.2 to 6.4. The highest K and Na contents were found at D600 and D1200; the highest K and Na availability occurred at 120 DAP and 150 DAP, respectively, indicating competition between these nutrients for exchange sites. Organic matter content was proportionally high according to the vinasse dose applied. D600 and D1200 doses increased Na content in the soil, with greater magnitude at the 0-0.20 m depth.

RESUMO O uso de doses elevadas de vinhaça no cultivo da cana-de-açúcar modifica os atributos químicos do solo. Objetivou-se com o presente trabalho avaliar o efeito da aplicação de doses elevadas de vinhaça sobre características químicas de um Argissolo Amarelo cultivado com cana-de-açúcar. Os tratamentos consistiram na aplicação de doses equivalentes a 0 (D0), 150 (D150), 300 (D300), 600 (D600) e 1200 (D1200) m3 ha-1 de vinhaça e mais uma testemunha. O delineamento experimental adotado foi inteiramente casualizado, com seis tratamentos e seis repetições. Avaliou-se a concentração de potássio (K), cálcio (Ca), magnésio (Mg) e sódio (Na) trocável, matéria orgânica, Capacidade de Troca Catiônica, Razão de Adsorção de Sódio, Porcentagem de Sódio Trocável, Condutividade Elétrica e pH aos 90, 120, 150 e 210 dias após o plantio (DAP), além da respiração basal microbiana aos 210 dias. O experimento foi conduzido em vasos com capacidade de 100 L. O pH do solo aumentou com a aplicação da vinhaça dentro da faixa considerada como adequada para a cana-de-açúcar, variando de 6,2 a 6,4. O K e Na apresentaram maiores concentrações em D600 e D1200; as maiores disponibilidades de K e Na no solo ocorreram, respectivamente, aos 120 e 150 DAP, indicando competição entre os elementos pelos sítios de troca. O teor de matéria orgânica foi proporcionalmente elevado conforme a dose de vinhaça aplicada. As doses D600 e D1200 aumentam a concentração de Na no solo, com maior magnitude na profundidade 0 – 0,20 m.

https://doi.org/10.1590/1983-21252023v36n217rc

Fruit production and quality of ‘Paluma’ guava with nematode-tolerant rootstock irrigated in the semi-arid region
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Simões, Welson L.

; Andrade, Victor P. M. de

; Silva, Jucicléia S. da

; Santos, Carlos A. F.

; Sousa, José S. C. de

; Calgaro, Marcelo

; Barbosa, Kaio V. F.

; Nascimento, Bruno R. do

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

may 2023, Volume 27 N. 5 Pages 400 - 406

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Using nematode-resistant and/or -tolerant rootstock is a strategy that has maintained guava cultivation feasible in the irrigated perimeters of the Brazilian semi-arid region. The objective was to evaluate the production, gas exchange, and fruit quality of ‘Paluma’ guava with and without nematode-tolerant rootstock under different irrigation depths and production periods. The experimental design was randomized blocks, in the mixed 2 × 4 × 2 factorial scheme, corresponding to two forms of cultivation of ‘Paluma’ guava (without and with nematode-tolerant rootstock), four irrigation depths (60, 80, 100, and 120% of crop evapotranspiration - ETc), and two production periods, with four replicates. Guava plants were evaluated for physiological, production and post-harvest quality parameters. Gas exchange in ‘Paluma’ guava leaves was higher in the second production cycle, under irrigation depths above 100% ETc, not differing with the use of the rootstock. The use of the rootstock ‘BRS Guaraçá’ promotes a greater number of fruits and production with the increase of the irrigation depth, mainly in the second half of the year, with the increase of soluble solids and titratable acidity in the fruits.

RESUMO A utilização de porta enxerto resistente e ou tolerante a nematoides é uma estratégia que tem tornado viável a manutenção dos cultivos de goiabeira nos perímetros irrigados do semiárido brasileiro. Assim, o objetivo foi avaliar a produção, trocas gasosas e qualidade dos frutos da goiabeira ‘Paluma’ com e sem o porta enxerto tolerante a nematoide sob diferentes lâminas de irrigação e épocas de produção no Semiárido Brasileiro. O delineamento experimental foi em blocos ao acaso, no esquema fatorial misto 2 × 4 × 2, sendo duas formas de cultivo da goiabeira ‘Paluma’ (sem e com o porta enxerto tolerante a nematoide), quatro lâminas de irrigação (60, 80, 100 e 120% da evapotranspiração da cultura - ETc) e duas épocas de produção, com quatro repetições. Foram realizadas avaliações fisiológicas das plantas, produção e qualidade pós-colheita. As trocas gasosas nas folhas da goiabeira ‘Paluma’ foram maiores no segundo ciclo de produção, quando irrigada com lâminas de irrigação acima de 100% da ETc, não diferindo com o uso do porta enxerto. O uso do porta-enxerto ‘BRS Guaraçá’ proporciona um maior número de frutos e produção com o aumento da lâmina de irrigação, principalmente no segundo semestre do ano, bem como o aumento do teor de sólidos solúveis e acidez nos frutos.

https://doi.org/10.1590/1807-1929/agriambi.v27n5p400-406

10.

Antifungal effect of essential oils on control of phytopathogens in stored soybean seeds
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Baiotto, Cristiano S.

; Baiotto, Luana M. C.

; Beber, Simony C.

; Kleibert, Karine R. U.

; Fell, Ana P. W.

; Babeski, Cristhian M.

; Bandeira, Willyan J. A.

; Basso, Natiane C. F.

; Silva, José A. G. da

; Colet, Christiane de F.

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

apr 2023, Volume 27 N. 4 Pages 272 - 278

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO A soja está sujeita à ocorrência de patógenos transmitidos por sementes, necessitando de tratamento fitossanitário, porém, este pode ser tóxico ao homem e ao ambiente. Objetivou-se avaliar o efeito dos óleos essenciais de alecrim (Rosmarinus officinalis) e eucalipto (Corymbia citriodora) no tratamento contra fungos fitopatogênicos em sementes de soja armazenadas. O experimento foi em delineamento inteiramente casualizado em arranjo fatorial 2 × 5, para sementes com e sem inoculação de fungos (Aspergillus flavus e Penicillium rubens) e cinco tratamentos de sementes (três óleos essenciais, controle positivo e controle negativo), com quatro repetições. Os óleos essenciais de alecrim, eucalipto e a combinação destes foram aplicados na dose de 4 mL kg-1 de sementes de soja, na concentração de 700 µL mL-1. Como controle negativo (testemunha) utilizou-se água destilada com Tween® 80 a 2% e como controle positivo o fungicida comercial Vitavax-Thiram® 200SC, conforme dosagem do fabricante. O óleo essencial de R. officinalis foi eficiente no controle de Penicillium sp. nas sementes de soja armazenadas e apresentou efeito semelhante ao controle positivo. O óleo essencial de C. citriodora reduziu a incidência de Aspergillus sp. Portanto, estes óleos essenciais têm potencial para serem utilizados no controle alternativo de patógenos de sementes de soja.

ABSTRACT Soybean is subject to occurrences of pathogens transmitted by seeds, requiring phytosanitary treatment, however, it can be toxic to humans and the environment. The objective of this study was to evaluate the effect of essential oils of rosemary (Rosmarinus officinalis) and eucalyptus (Corymbia citriodora) on the control of phytopathogenic fungi in stored soybean seeds. The experiment was carried out in a completely randomized design, using a 2 × 5 factorial arrangement consisted of seeds with and without fungal inoculation (Aspergillus flavus and Penicillium rubens) and five seed treatments (three essential oils, positive control, and negative control), with four replicates. Rosemary and eucalyptus essential oils and their combination were applied to soybean seeds at the rate of 4 mL kg-1, at a concentration of 700 µL mL-1. Distilled water with 2% Tween® 80 was used as negative control, and the commercial fungicide Vitavax-Thiram® 200SC was used as positive control, according to the manufacturers’ recommendations. The R. officinalis essential oil was efficient in the control of Penicillium sp. in stored soybean seeds and showed a similar effect to the positive control. The C. citriodora essential oil reduced the incidence of Aspergillus sp. Therefore, these essential oils have potential to be used as an alternative control of soybean seed pathogens.

https://doi.org/10.1590/1807-1929/agriambi.v27n4p272-278

11.

Physical properties of grains of cowpea genotypes
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Liliane S. da

; Carvalho, Abner J. de

; Siqueira, Wagner da C.

; Rocha, Maurisrael de M.

; Borges, Janaina B.

; Barbosa, Edmilson da S.

; Barbosa, José A. E.

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2023, Volume 27 N. 3 Pages 216 - 222

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivou-se avaliar propriedades físicas de grãos de genótipos de feijão-caupi. O estudo foi conduzido no Laboratório de Armazenamento e Beneficiamento de Grãos e Sementes no Instituto Federal do Norte de Minas Gerais, em Januária, MG. Os tratamentos utilizados foram 17 linhagens-elite e 11 cultivares de grãos de feijão-caupi. O delineamento experimental foi em blocos casualizados, com quatro repetições. As características avaliadas foram a densidade aparente, ângulo de repouso, massa de 1.000 grãos, forma (esfericidade e circularidade), tamanho (área projetada) dos grãos, teor de água e porosidade da massa de grãos. Os genótipos conferem diferentes tamanhos aos grãos de feijão-caupi, o que influencia na variação da densidade aparente, ângulo de repouso e massa de mil grãos. Não houve diferença estatística entre as médias para as variáveis teor de água e porosidade da massa, entre os genótipos avaliados.

ABSTRACT The present study aimed to evaluate the physical properties of cowpea genotypes grains. The study was conducted at the Laboratory for Storage and Processing of Grains and Seeds at the North Federal Institute of Minas Gerais (IFNMG) in Januária, MG, Brazil. The treatments were composed of 17 elite lines and 11 cultivars of cowpea. The experimental design was in randomized blocks with four replicates. The properties evaluated were bulk density, angle of repose, 1000-grain weight, shape (sphericity and circularity), size (projected area) of the grains, water content, and porosity of the grain mass. The genotypes give different sizes to cowpea beans, which influences the variation of bulk density, angle of repose, and 1000-grain weight. There was no statistical difference among the cowpea genotypes evaluated for water content and mass porosity.

https://doi.org/10.1590/1807-1929/agriambi.v27n3p216-222

12.

Guía de práctica clínica para el manejo del cáncer de pulmón de células pequeñas: enfermedad limitada
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Cabrera-Miranda, Luis A.

; Lozano-Ruiz, Francisco J.

; Blake-Cerda, Mónika

; Corona-Cruz, José F.

; Sánchez-Reyes, Roberto

; Pérez-Álvarez, Sandra I.

; Díaz-García, Diego A.

; Álvarez-Bojórquez, Mario E.

; Rivera-Márquez, Raúl

; López-Saucedo, Raúl A.

; Bolaño-Guerra, Laura M.

; Maldonado-Magos, Federico

; Aldaco-Sarvide, Fernando

; Alvarado-Zermeño, Adriana

; Barajas-Figueroa, Luis J.

; Bautista-Aragón, Yolanda

; Bolaños-Morales, Francina V.

; Castillo-Ortega, Graciano

; Félix-Leyva, Jesús A.

; Gerson-Cwilich, Raquel

; Guzmán-de Alba, Enrique

; López-Galindo, Ángel A.

; Mariscal-Ramírez, Carlos

; Piñeiro-Retif, Rafael

; Ramos-Prudencio, Rubí

; Rodríguez-Cid, Jerónimo

; Silva-Bravo, Fernando

; Arrieta, Óscar

Gaceta mexicana de oncología

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2023, Volume 22 N. 1 Pages 3 - 23

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Antecedentes: El cáncer de células pequeñas (CPCP) representa el 13-15% del total de neoplasias primarias de pulmón. Se caracteriza por su rapidez en la tasa de crecimiento y en el desarrollo de metástasis a distancia. Objetivos: Orientar y estandarizar el tratamiento del CPCP, enfermedad limitada, en México, basado en evidencia clínica nacional e internacional. Material y métodos: Este documento se desarrolló como una colaboración entre el Instituto Nacional de Cancerología y la Sociedad Mexicana de Oncología en cumplimiento con estándares internacionales. Se integró un grupo conformado por oncólogos médicos, cirujanos oncólogos, cirujanos de tórax, radio-oncólogos y metodólogos con experiencia en revisiones sistemáticas de la literatura y guías de práctica clínica. Resultados: Se consensuaron, por el método Delphi y en reuniones a distancia, las recomendaciones en CPCP enfermedad limitada, producto de las preguntas de trabajo. Se identificó y evaluó críticamente la evidencia científica que responde a cada una de dichas preguntas clínicas, antes de incorporarla a la guía. Conclusión: Esta guía proporciona recomendaciones clínicas para el manejo de la enfermedad limitada del CPCP y durante el proceso de toma de decisiones de los clínicos involucrados con su manejo en nuestro país para mejorar la calidad de la atención clínica en estos pacientes.

Abstract Background: Small cell lung cancer (SCLC) represents 13-15% of all primary lung neoplasms and is characterized by rapid growth rate and development of distant metastases. Objectives: To guide and standardize the treatment of limited disease small cell lung cancer in Mexico based on national and international clinical evidence. Material and methods: This document was developed as a collaboration between the National Cancer Institute and the Mexican Society of Oncology in compliance with international standards. An interdisciplinary group was formed, including medical oncologists, oncological surgeons, thoracic surgeons, radiation oncologists, and methodologists with experience in systematic reviews of the literature and clinical practice guidelines. Results: Consensus recommendations were reached, both by the Delphi method and in remote meetings, for limited SCLC disease resulting from the same number of work questions. The scientific evidence that answers each of these clinical questions was identified and critically evaluated, before being incorporated into the body of evidence of the guide. Conclusion: This guide provides clinical recommendations for the management of limited disease SCLC to contribute to the decision-making process of the clinicians involved with its management in our country, hoping that this will contribute to improving the quality of clinical care in these patients.

https://doi.org/10.24875/j.gamo.22000121

13.

Exchange of germoplasm and genetic diversity to enrichment the Desmanthus genebank
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Ana V. C. da

; Nascimento, Isa M. R. do

; Rangel, José H. A.

; Pereira, Camila S. A.

; Muniz, Evandro N.

Revista Caatinga

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2023, Volume 36 N. 1 Pages 33 - 40

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The genus Desmanthus presents wide ecogeographical distribution and complex taxonomy. Desmanthus pernambucanus (L.) Thellung, popularly known in Brazil as Jureminha, is a leguminous species native to the Northeast region of Brazil, which stands out by its high protein content, resistance to droughts, and by presenting no toxicity to animals. The objective of this work was to evaluate the genetic diversity of 15 progenies from the Commonwealth Scientific and Industrial Research Organization (CSIRO; Australia), through germplasm exchange for enrichment of the Desmanthus genebank of Embrapa Tabuleiros Costeiros, in Nossa Senhora das Dores, SE, Brazil. Fifteen ISSR markers were used, from which 8 were selected. The progenies identified as 242, 245, 246, 255, and 268 were the most genetically distant, and the most recommended to be introduced to the genebank.

RESUMO O gênero Desmanthus apresenta ampla distribuição ecogeográfica e complexa taxonomia. O Desmanthus pernambucanus (L.) Thellung, popularmente conhecido como Jureminha, é uma leguminosa nativa do Nordeste brasileiro, que se destaca pelo elevado teor de proteína, resistência à seca e por não apresentar toxicidade aos animais. O trabalho foi desenvolvido com o objetivo de avaliar a diversidade genética de 15 progênies oriundas do CSIRO (Commonwealth Scientific and Industrial Research Organization, Austrália), através de intercâmbio de germoplasma, para o enriquecimento do Banco Ativo de Germoplasma de Desmanthus da Embrapa Tabuleiros Costeiros (BAG), em Nossa Senhora das Dores, SE, Brasil. Foram utilizados 15 marcadores ISSR, dos quais oito foram selecionados. As progênies identificadas como 242, 245, 246, 255 e 268 foram as mais distantes geneticamente, e as mais indicadas para serem introduzidas no BAG.

https://doi.org/10.1590/1983-21252023v36n104rc

14.

A Multi-Plasmonic Approach for Simultaneous Measurements based on a D-Shaped Photonic Crystal Fiber Sensor: from Temperature to Optical Dispersion MultiPlasmonic Multi Plasmonic DShaped D Shaped Sensor
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Romeiro, Amanda F.

; Cardoso, Markos P.

; Silva, Anderson O.

; Costa, João C. W. A.

; Giraldi, M. Thereza R.

; Santos, José L.

; Baptista, José M.

; Guerreiro, Ariel

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2023, Volume 22 N. 1 Pages 219 - 229

Abstract: En | Text: En | PDF: En

Abstract The growing demand for multiparameter sensors includes compact devices accompanied by simple calibration processes to distinguish the outputs from each other. This paper evaluates a scheme to determine multiple parameters of a medium using localized surface plasmon resonances (SPR) excited on a Dshaped photonic crystal fiber (PCF) partially covered by two gold layers of different thicknesses. We demonstrate that the proposed sensing platform, once customized to characterize the possible dispersive profiles of the refractive index of the analyte, also allows interrogating the temperature of a sample from a linear relationship. Since the plasmonic resonances are excited at separated and low crosstalk spectral channels, different sensing responses can be obtained simultaneously in the same location of the D-shaped PCF. These features turn out the SPR sensor a suitable tool for simultaneous monitoring of optical dispersion and temperature. other (SPR PCF (PCF thicknesses platform analyte relationship channels D shaped

https://doi.org/10.1590/2179-10742023v22i1270778

15.

Profitability of using irrigation in forage cactus-sorghum intercropping for farmers in semi-arid environment
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Thieres G. F. da

; Jardim, Alexandre M. da R. F.

; Diniz, Wellington J. da S.

; Souza, Luciana S. B. de

; Araújo Júnior, George do N.

; Silva, Gabriel Í. N. da

; Alves, Cleber P.

; Souza, Carlos A. A. de

; Morais, José E. F. de

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

feb 2023, Volume 27 N. 2 Pages 132 - 139

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO O uso da irrigação desempenha papel fundamental no avanço das fronteiras agrícolas e no aumento da produtividade nas áreas de cultivo, principalmente em ambientes semiáridos que apresentam alta variação espaço-temporal de chuvas. Essa prática é sugerida até mesmo para cultivos adaptados como palma forrageira (Opuntia sp.) e sorgo (Sorghum bicolor). Assim, objetivou-se avaliar a rentabilidade do uso da irrigação no sistema solteiro e sistema consorciado palma-sorgo no semiárido. O delineamento experimental foi em blocos casualizados em esquema fatorial 5 × 3: cinco lâminas de irrigação por gotejamento (0, 25, 50, 75 e 100% da evapotranspiração de referência - ET0) e três sistemas de cultivo (palma forrageira solteira, sorgo solteiro e consórcio palma-sorgo), com quatro repetições. O tratamento 0% ET0 correspondeu à condição de sequeiro com uma lâmina de 355 mm. Foi conduzido um ciclo de palma e dois de sorgo (planta e rebrota) compreendidos de novembro 2014 a novembro de 2015. Verificou-se que os maiores custos para implantação dos sistemas de cultivo em condições irrigadas se devem à aquisição do sistema de irrigação e insumos, representando 85,3% do custo operacional efetivo. O sistema sorgo solteiro e o sistema palma forrageira-sorgo proporcionaram as maiores produtividades de matéria fresca (62.013,05 e 60.075,36 kg ha-1), respectivamente. Com base em indicadores econômicos, a adoção de lâminas de irrigação (25, 50, 75 e 100% ET0) promoveu lucros para os sistemas (solteiro e consorciado) a partir do segundo ano de implantação.

ABSTRACT Irrigation plays a fundamental role in advancing agricultural frontiers and increasing crop productivity, especially in semi-arid environments, because they exhibit high spatiotemporal rainfall variation. This practice is suggested even for adapted crops, such as forage cactus (Opuntia sp.), sorghum (Sorghum bicolor), and single or intercropping systems. In this study, aimed to evaluate the profitability of using irrigation in a single and intercropping forage cactus-sorghum system in a semi-arid region. The experimental design was in randomized blocks in a 5 × 3 factorial arrangement: five drip irrigation depths (0, 25, 50, 75, and 100% of the reference evapotranspiration - ET0) and three cropping systems (single forage cactus, single sorghum, and intercropping forage cactus-sorghum), with four replicates. The 0% ET0 treatment corresponded to rainfed conditions at a depth of 355 mm. A cycle of forage cactus and two sorghum cultivars (plant and regrowth) was conducted between November 2014 and November 2015. It was verified that the highest costs for implantation of the crop systems in irrigated conditions are due to the acquisition of irrigation and input systems, representing 85.3% of the effective operational cost. The single sorghum and forage cactus-sorghum systems provided the highest fresh matter productivity (62,013.05 and 60,075.36 kg ha-1, respectively). Based on economic indicators, the adoption of irrigation depths (25, 50, 75, and 100% ET0) promoted profits for the systems (single and intercropping) from the second year of implementation.

https://doi.org/10.1590/1807-1929/agriambi.v27n2p132-139

Showing

itens per page

Page of 26 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

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

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

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

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »