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ABSTRACT A study was undertaken comparing the water requirements of two common bean ( Phaseolus vulgaris L.) cultivars to generate specific recommendations aimed at optimizing water use. To accomplish this work, the agronomic performance, responsiveness to water and water productivity of these two common bean cultivars of determinate and indeterminate growth habits were identified. The 2-year experiment was carried out during the winter growing season in the southeast of Brazil. Cultivars IAC Imperador, with an early season of determinate growth habit, and IPR Campos Gerais, having a mid-season of indeterminate growth habit, were subjected to five irrigation levels (54, 70, 77, 100, and 132 % of the crop evapotranspiration). Water deficit affected agronomic performance, reducing plant height (by up to 29 %), leaf area index (by up to 40 %), soil cover fraction (by up to 28 %), and grain yield (GY - by up to 31 %), in both cultivars. In contrast, excess water was more detrimental to cultivar IAC Imperador. Cultivar IPR Campos Gerais produced 18 % more than GY, showing superior water productivity and response to irrigation depth than IAC Imperador. Out of all the variables evaluated, the soil cover fraction correlated the most with grain yield in both common bean cultivars during the 2-year study. In other words, cover fraction evaluation in common bean allows for estimating crop production potential, which helps producers and technicians in their decision making regarding management practices. Thus, a cultivar directly affects water use in common bean production, thereby suggesting the need for a or water conservation strategy and sustainability of irrigated common bean production.

https://doi.org/10.1590/1678-992x-2022-0038

Dicamba Degradation by Fenton-Like Process Using Iron/Biochar Composites
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Guimarães, Tiago

; Aguiar, Adalin C. M. de

; Silva, Elisa M. G. da

; Mielke, Kamila C.

; Costa, Marcelo M. da

; Silva, Antonio A. da

; Teixeira, Ana P C.

; Lopes, Renata P.

Journal of the Brazilian Chemical Society

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2023, Volume 34 N. 12 Pages 1753 - 1761

Abstract: En | Text: En | PDF: En

In this work, an iron/biochar composite was evaluated as a catalyst for 3,6-dichloro-2-methoxybenzoic acid (dicamba) herbicide degradation by heterogeneous Fenton-like process. The biochar was produced from pyrolysis of coffee husks. After FeII adsorption by biochar, the material was submitted to chemical reduction, via borohydride, producing zero-valent iron nanoparticles (BIO-Fe0). The material was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy and energy dispersive X-ray spectroscopy, Raman scattering spectroscopy, nitrogen adsorption/desorption analysis, among other techniques. The BIO-Fe0 is a heterogeneous material, and the main constituent elements are carbon (C), oxygen (O), silicon (Si), sulfur (S) and iron (Fe). The dicamba degradation was monitored by high-performance liquid chromatography and biological assays using beans (Phaseolus vulgaris) as indicator species. The commercial dicamba (500 mL; 250 mg L 1) was submitted to Fenton-like process (initial pH 3.20; BIO-Fe0: 3 or 5 g; 1.00 mL H2O2 at 3.00 mmol L 1; 1.00 mL Al2(SO4)3 at 1.00 mol L 1; 25 ºC and 5 h of reaction), presenting ca. 100% of degradation. These treated solutions were used in a biological assay. The intoxication levels were less 30%. These results show that BIO-Fe0 has the potential to be used in the dicamba degradation by Fenton-like processes.

https://doi.org/10.21577/0103-5053.20230068

Production of guava seedlings with increasing water salinity and nitrogenpotassium fertilizations
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Rodrigues Filho, Ricardo A.

; Nobre, Reginaldo G.

; Lima, Geovani S. de

; Moraes, Francimar M. da S.

; Soares, Lauriane A. dos A.

; Teixeira, Antonio D. da S.

; Peixoto, Tayd D. C.

; Vasconcelos, Emanoel dos S.

Revista Caatinga

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2023, Volume 36 N. 4 Pages 929 - 939

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

ABSTRACT Salt stress affects the development of several crops, being one of the limiting factors for irrigated agriculture in the semiarid region, where nitrogen and potassium fertilization can be an alternative for agricultural production. This study aimed to evaluate the viability of using water with different salinities associated with varying amounts of nitrogen and potassium fertilization in the production of seedlings of the guava cultivar Paluma in an experiment conducted in experimental areas of the Federal Rural University of the Semi-arid Region (UFERSA), campus of Caraúbas. The research was carried out from February to June 2021. The study was set up in a randomized block design and analyzed in a 5 × 4 factorial scheme with four replicates, and two plants per plot. Treatments were established by combining different levels of electrical conductivity of the irrigation water (ECw): 0.3, 1.1, 1.9, 2.7, and 3.5 dS m-1, with Combinations (C) of nitrogen (N) and potassium (K2O) levels of recommended fertilization: C1 = 70% N + 50% K2O, C2 = 100% N + 75% K2O, C3 = 130% N + 100% K2O, and C4 = 160% N + 125% K2O. Irrigation with electrical conductivity levels up to 2.1 dS m-1 favored seedling growth for the guava cv. Paluma. Fertilization combinations C1 and C2 promoted the greatest increases in growth and biomass for guava seedlings cv. Paluma 125 days after sowing. Fertilizer combinations did not mitigate the harmful effects of salt stress from irrigation water on the production of young guava cv. Paluma.

RESUMO O estresse salino afeta o desenvolvimento de diversas culturas, sendo um dos fatores limitantes para a agricultura irrigada no semiárido, onde a adubação nitrogenada e potássica pode ser uma alternativa para a produção agrícola da região. Com esse trabalho objetivou-se avaliar a viabilidade do uso de água com diferentes salinidades associada a diferentes adubações nitrogenadas e potássicas na produção de mudas da goiabeira cultivar Paluma. O experimento foi conduzido em áreas experimentais da Universidade Federal Rural do Semiárido (UFERSA), Campus Caraúbas. A pesquisa foi realizada no período de fevereiro a junho de 2021. O estudo foi montado em delineamento de blocos ao acaso, com quatro repetições e duas plantas por parcela. Foi utilizado um esquema fatorial 5 × 4, que combinou cinco níveis de condutividade elétrica da água de irrigação (CEa): 0,3, 1,1, 1,9, 2,7 e 3,5 dS m-1, com combinações (C) de nitrogênio (N) e níveis de potássio (K2O) de adubação recomendada: C1 = 70% N + 50% K2O, C2 = 100% N + 75% K2O, C3= 130% N + 100% K2O e C4= 160% N + 125% K2O. Irrigação com níveis de condutividade elétrica até 2,1 dS m-1 favoreceu o crescimento das mudas da goiabeira cv. Paluma. As adubações C1 e C2 promoveram os maiores incrementos de crescimento e fitomassa para a goiabeira cv. Paluma aos 125 dias após a semeadura. As combinações de adubação não mitigaram os efeitos nocivos do estresse salino da água de irrigação sobre a produção de mudas de goiabeira cv. Paluma.

https://doi.org/10.1590/1983-21252023v36n420rc

COVID-19 in the Perioperative Period of Cardiovascular Surgery: the Brazilian Experience
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Gomes, Walter J.

; Rocco, Isadora

; Pimentel, Wallace S.

; Pinheiro, Aislan H. B.

; Souza, Paulo M. S.

; Costa, Luiz A. A.

; Teixeira, Marjory M. P.

; Ohashi, Leonardo P.

; Bublitz, Caroline

; Begot, Isis

; Moreira, Rita Simone L

; Hossne Jr, Nelson A.

; Vargas, Guilherme F.

; Branco, João Nelson R.

; Teles, Carlos A.

; Medeiros, Eduardo A. S.

; Sáfadi, Camila

; Rampinelli, Amândio

; Moratelli Neto, Leopoldo

; Rosado, Anderson Rosa

; Mesacasa, Franciele Kuhn

; Capriata, Ismael Escobar

; Segalote, Rodrigo Coelho

; Palmieri, Deborah Louize da Rocha Vianna

; Jardim, Amanda Cristina Mendes

; Vianna, Diego Sarty

; Coutinho, Joaquim Henrique de Souza Aguiar

; Jazbik, João Carlos

; Coutinho, Henrique Madureira da Rocha

; Kikuta, Gustavo

; Almeida, Zely Sant'Anna Marotti de

; Feguri, Gibran Roder

; Lima, Paulo Ruiz Lucio de

; Franco, Anna Carolina

; Borges, Danilo de Cerqueira

; Cruz, Felipe Ramos Honorato De La

; Croti, Ulisses Alexandre

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Goraieb, Lilian

; Postigo, Karolyne Barroca Sanches

; Jucá, Fabiano Gonçalves

; Oliveira, Fátima Rosane de Almeida

; Souza, Rafael Bezerra de

; Zilli, Alexandre Cabral

; Mas, Raul Gaston Sanchez

; Bettiati Junior, Luiz Carlos

; Tranchesi, Ricardo

; Bertini Jr, Ayrton

; Franco, Leandro Vieira

; Fernandes, Priscila

; Oliveira, Fabiana

; Moraes Jr, Roberto

; Araújo, Thiago Cavalcanti Vila Nova de

; Braga, Otávio Penna

; Pedrosa Sobrinho, Antônio Cavalcanti

; Teixeira, Roberta Tavares Barreto

; Camboim, Irla Lavor Lucena

; Gomes, Eduardo Nascimento

; Reis, Pedro Horigushi

; Garcia, Luara Piovan

; Scorsioni, Nelson Henrique Goes

; Lago, Roberto

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

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dec 2021, Volume 36 N. 6 Pages 725 - 735

Abstract: En | Text: En | PDF: En

Abstract Introduction: We investigated the clinical course and outcomes of patients submitted to cardiovascular surgery in Brazil and who had developed symptoms/signs of coronavirus disease 2019 (COVID-19) in the perioperative period. Methods: A retrospective multicenter study including 104 patients who were allocated in three groups according to time of positive real time reverse transcriptase-polymerase chain reaction (RT-PCR) for the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2): group 1, patients who underwent cardiac surgery > 10 days after positive RT-PCR; group 2, patients with a positive RT-PCR within 10 days before or after surgery; group 3, patients who presented positive RT-PCR > 10 days after surgery. The primary outcome was mortality and secondary outcomes were postoperative complications, intensive care unit (ICU) length of stay, and postoperative days of hospitalization. Results: The three groups were similar with respect to age, the European System of Cardiac Operative Risk Evaluation score, and comorbidities, except hypertension. Postoperative complications and death were significantly higher in groups 2 and 3 than in group 1, and no significant difference between groups 2 and 3 was seen. Group 2 showed a high prevalence of surgery performed as an urgent procedure. Although no significant differences were observed in ICU length of stay, total postoperative hospitalization time was significantly higher in group 3 than in groups 1 and 2. Conclusion: COVID-19 affecting the postoperative period of patients who underwent cardiovascular surgery is associated with a higher rate of morbidity and mortality. Delaying procedures in RT-PCR-positive patients may help reduce risks of perioperative complications and death.

https://doi.org/10.21470/1678-9741-2021-0960

[SciELO Preprints] - Strengthening the surveillance and information activities is urgent and essential to reduce the transmission force of SARS-CoV-2
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Teixeira, Maria Glória Kerr, Ligia Regina Franco Sansigolo Ximenes, Ricardo Arraes de Alencar Almeida, Rosa Lívia Freitas de Ichihara, Maria Yury Albuquerque, Maria de Fátima Militão de Aquino, Estela M L Werneck, Guilherme Carmo, Eduardo Hage Medronho, Roberto Andrade Oliveira, Wanderson Kleber de Henriques, Claudio Maierovitch Pessanha Kendall, Carl Silva, Antônio Augusto Moura da Almeida-Filho, Naomar M. Souza, Wayner Vieira de Veras , Maria Amelia de Sousa Mascena Penna, Gerson Oliveira Silva , Gulnar Azevedo e Brandão Filho, Sinval Pinto Barreto, Maurício L.

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Publication date: 2021-08-17

Abstract: En Pt

N/A

https://doi.org/10.1590/1980-549720210049

YOUNG SOCCER PLAYERS WITH HIGHER SOMATIC MATURATION ARE STRONGER, MORE POWERFUL AND FASTER THAN THOSE WITH LOWER MATURATION
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Teixeira, Maurício

; Medeiros, Alexandre Igor Araripe

; Simim, Mário Antônio de Moura

; Assumpção, Cláudio de Oliveira

Journal of Physical Education

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2021, Volume 32 elocation e3258

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

RESUMO A identificação do nível maturacional de futebolistas em formação, ao longo da puberdade, é fundamental para verificar a influência de aspectos que interferem no desempenho esportivo, tais como o tamanho corporal e as capacidades físicas. O objetivo do presente estudo foi verificar as diferenças de desempenho físico de jovens futebolistas em estágios maturacionais pré e pós pico de velocidade de crescimento. Participaram do estudo 49 futebolistas (14,49 ± 1,00 anos) das categorias de base de um clube da cidade de Fortaleza. Foram aferidas a massa corporal, a estatura e a altura tronco-cefálica. A maturação somática foi estimada por meio da distância ao pico de velocidade de crescimento (DPVC). Foram realizados os testes Sprint 10 metros e 20 metros lançado, Illinois modificado, Altura do salto (CMJ), RAST e o Yo Yo IRT 1. As Diferenças de Média Estandardizada (DME) e Intervalo de Confiança (IC = 90%) foram utilizados para comparar as variáveis do estudo (PRÉ-PVC vs PÓS-PVC). Os nossos achados mostraram que o grupo PÓS-PVC apresentou valores mais elevados no CMJ (0/3/97, Very likely) e no RAST (potência máxima, média, mínima) e inferiores no Sprint 20m L (100/0/0, Most Likely), quando comparado ao grupo PRÉ-PVC. Concluimos que jovens futebolistas com maturação somática pós pico de velocidade de crescimento apresentam melhor capacidade de força de membros inferiores, potência anaeróbia e velocidade.

ABSTRACT The identification of young soccer players’ maturation level throughout puberty is crucial to verify the influence of aspects that interfere on sport performance, such as body height and physical capacities. The aim of the present study was to verify the differences in physical performance of young soccer players in maturation stages before and after peak height velocity. This study comprised 49 soccer players (14.49 ± 1.00 yrs) belonging to the youth teams of a club in the city of Fortaleza. Body weight, height and trunk-cephalic height were measured. Somatic maturation was estimated using distance in years from peak height velocity (DPHV). 10 Meters Sprint and 20 Meter Flying Sprint, Modified Illinois, Jump Height (CMJ), RAST and Yo Yo IRT 1 tests were applied. Standardized Mean Difference (SMD) and Confidence Intervals (CI = 90%) were used to compare the study variables (PRE-PHV vs POST-PHV). Our findings showed that POST-PHV group showed higher values in CMJ (3/3/97, Very likely) and RAST (peak, average, minimum power) and lower in the 20 Meter Flying Sprint (100/0/0, Most Likely) when compared to the PRE-PHV group. We concluded that young soccer players with somatic maturation after peak height velocity presented better capacity of lower limb strength, anaerobic power and speed.

https://doi.org/10.4025/jphyseduc.v32i1.3258

Fortalecer as atividades de informação e vigilância epidemiológica é essencial e urgente para reduzir a força de transmissão do SARS-CoV-2
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Teixeira, Maria Glória

; Kerr, Ligia Regina Franco Sansigolo

; Ximenes, Ricardo Arraes de Alencar

; Almeida, Rosa Lívia Freitas de

; Ichihara, Maria Yury

; Albuquerque, Maria de Fátima Militão de

; Aquino, Estela M L

; Werneck, Guilherme Loureiro

; Carmo, Eduardo Hage

; Medronho, Roberto Andrade

; Oliveira, Wanderson Kleber de

; Henriques, Claudio Maierovitch Pessanha

; Kendall, Carl

; Silva, Antônio Augusto Moura da

; Almeida Filho, Naomar Monteiro

; Souza, Wayner Vieira de

; Veras, Maria Amelia de Sousa Mascena

; Penna, Gerson Oliveira

; Silva, Gulnar Azevedo e

; Brandão Filho, Sinval Pinto

; Barreto, Maurício Lima

Revista Brasileira de Epidemiologia

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2021, Volume 24 elocation e210049

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

https://doi.org/10.1590/1980-549720210049 69 downloads

LEAF GAS EXCHANGE AND FLOWERING OF MANGO SPRAYED WITH BIOSTIMULANT IN SEMI-ARID REGION
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MUDO, LAIANE EUGÊNIA DELMONDES

; LOBO, JACKSON TEIXEIRA

; CARREIRO, DANIEL DE ALMEIDA

; CAVACINI, JEFERSON ANTÔNIO

; SILVA, LUAN DOS SANTOS

; CAVALCANTE, ÍTALO HERBERT LUCENA

Revista Caatinga

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apr 2020, Volume 33 N. 2 Pages 332 - 340

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

RESUMO O objetivo com este estudo foi avaliar efeito de bioestimulante contendo aminoácidos e extrato de levedura nas respostas fisiológicas e reprodutivas de mangueiras cv. Tommy Atkins durante a fase de maturação de ramos, em condição semiárida tropical. O delineamento experimental foi em blocos ao acaso, com cinco tratamentos, cinco repetições e cinco plantas por parcela. Os tratamentos foram: T1) Duas pulverizações com bioestimulante + KCl e duas pulverizações com K2SO4; T2) Quatro pulverizações com K2SO4 sem bioestimulante; T3) Três pulverizações individuais com bioestimulante e uma pulverização com K2SO4; T4) Duas pulverizações com bioestimulante e duas pulverizações com K2SO4; e T5) Duas pulverizações com bioestimulante + K2SO4 e uma pulverização com K2SO4. Há efeito positivo do bioestimulante contendo aminoácidos e extrato de levedura na transpiração, concentração interna de CO2, eficiência do uso da água e número de gemas reprodutivas e não-diferenciadas da mangueira cv. Tommy Atkins cultivada em condição semiárida tropical, com efeito atenuador no estresse abiótico vegetal. Para a maturação de ramos de mangueira cv. Tommy Atkins pode-se recomendar três pulverizações foliares de bioestimulante contendo aminoácidos e extrato de levedura (10 mL por planta) e uma de K2SO4 (3%), iniciando aos 45 dias após aplicação de paclobutrazol (T3).

ABSTRACT The aim of the present study was to evaluate the effect of biostimulant containing amino acids and yeast extract on the physiological and reproductive characteristics of mango cv. Tommy Atkins during the shoot maturation phase in tropical semi-arid region. The experimental design consisted of randomized blocks with five treatments, five replications and five plants per plot. Treatments consisted of: T1) two foliar sprays with [biostimulant + KCl] + two foliar sprays with K2SO4; T2) No biostimulant and four foliar sprays with K2SO4; T3) three individual foliar sprays with biostimulant and one foliar spray with K2SO4; T4) two foliar sprays with biostimulant and two foliar sprays with K2SO4; and T5) two foliar sprays with [biostimulant + K2SO4] + one foliar spray with K2SO4. There is a positive effect of the biostimulant containing amino acids and yeast extract on transpiration, internal CO2 concentration, water-use efficiency and number of reproductive and non-differentiated shoots of mango cv. Tommy Atkins cultivated under tropical semi-arid condition, with attenuating effect on plant abiotic stress. For shoot maturation of mango cv. Tommy Atkins, three foliar sprays with biostimulant containing amino acids and yeast extract (10 mL per plant) and one with K2SO4 (3%), starting at 45 days after paclobutrazol application (T3), can be recommended.

https://doi.org/10.1590/1983-21252020v33n206rc 807 downloads

GENETIC GAINS IN THE POPCORN POPULATION UENF-14: DEVELOPING THE NINTH GENERATION OF INTRAPOPULATION RECURRENT SELECTION
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GUIMARÃES, AMANDA GONÇALVES

; AMARAL JÚNIOR, ANTÔNIO TEIXEIRA DO

; PENA, GUILHERME FERREIRA

; ALMEIDA FILHO, JANEO EUSTÁQUIO DE

; PEREIRA, MESSIAS GONZAGA

; SANTOS, PEDRO HENRIQUE ARAÚJO DINIZ

Revista Caatinga

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sep 2019, Volume 32 N. 3 Pages 625 - 633

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

RESUMO A ocorrência da correlação negativa entre produtividade de grãos (PG) e capacidade de expansão (CE) no milho-pipoca contribui para dificultar o processo seletivo. No intento de contornar esse inconveniente, foi proposto, o caráter de importância, volume por pipoca expandida por hectare (VP). O objetivo deste estudo foi desenvolver o nono ciclo da população UENF-14 de milho-pipoca, estimar o efeito direto e indireto de VP e averiguar o progresso genéticos entre todos os ciclos seletivos. Duzentas progênies endogâmicas foram obtidas e avaliadas em blocos casualizados, com arranjos em repetições dentro de sets, sendo nove sets, oito constituídos por 25 progênies e um set com todos ciclos anteriores (oito) com três repetições. Avaliou-se a altura média da planta, prolificidade, peso de cem grãos, produtividade de grãos, capacidade de expansão e volume por pipoca expandida por hectare. Realizou-se a análise de trilha para desdobrar os efeitos diretos e indiretos e o índice de seleção Mulamba e Mock para seleção de quarenta progênies superiores. Houve variabilidade genética entre as progênies para todas características. Existe relação de causa e efeito entre o VP com a PG e CE, permitindo ganhos simultâneos com a seleção indireta. A seleção das progênies superiores com a utilização do peso atribuído por alternativas proporcionou maiores ganhos preditos de VP (20,73%). As médias obtidas em todos os ciclos indicaram aumentos, demonstrando a eficiência do uso da seleção recorrente em programas de melhoramento de milho-pipoca.

ABSTRACT The occurrence of negative correlations between grain yield (GY) and popping expansion (PE) in popcorn complicates the selection process. In an attempt to overcome this inconvenience, we proposed the use of the importance characteristic volume per popcorn per hectare (PV). The objectives of this study were to develop the ninth cycle of the UENF-14 popcorn population, to estimate the direct and indirect effects of PV and to verify the genetic progress among all selective cycles. We obtained and evaluated 200 inbred progenies in randomised blocks arranged in replicates within sets, with nine sets consisting of 25 progenies and one set with all previous eight cycles with three replicates. The average height of the plants, prolificacy, 100-grain weight, grain yield, grain popping expansion and volume per popcorn per hectare were evaluated. Track analysis was performed to determine the direct and indirect effects, and the Mulamba and Mock selection index was calculated for the selection of the 40 superior progenies. There was genetic variability among progenies in all evaluated traits, with a cause-and-effect relationship between PV with GY and PE, allowing simultaneous gains with indirect selection. The selection of the best progenies was more effective when using arbitrarily assigned weights, which provided higher predicted gains for PV (20.73%). The means obtained in all cycles indicated increases, demonstrating the efficiency of using continuous recurrent selection in popcorn breeding programs.

https://doi.org/10.1590/1983-21252019v32n307rc 622 downloads

10.

Anaerobic co-digestion of animal manure at different waste cooking oil concentrations
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Sunada, Natália da Silva

; Orrico, Ana Carolina Amorim

; Orrico Junior, Marco Antonio Previdelli

; Lucas Junior, Jorge de

; Lopes, Walter Renato Teixeira

; Schwingel, Alice Watte

Ciência Rural

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2018, Volume 48 N. 7 elocation e20170517

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

RESUMO: Objetivou-se encontrar a melhor dose de inclusão de óleo residual durante a co-digestão de substratos preparados com dejetos de bovinos leiteiros e suínos, com o intuito de maximizar as reduções de sólidos e as produções de biogás. Foram realizadas no abastecimento e desabastecimento dos biodigestores as análises de sólidos totais (ST), sólidos voláteis (SV) e fibra em detergente neutro (FDN), enquanto as mensurações de biogás duas vezes por semana. A máxima redução de SV (51,4%) foi possibilitada pela inclusão de até 54,6g de óleo de descarte kg dejetos-1, já as máximas degradações de FDN ocorreram com adições de até 69,4g de óleo de descarte kg dejetos-1. As inclusões de até 64g de óleo de descarte kg dejetos-1 possibilitaram produções específicas de biogás de 291,4 e 251,0 L de biogás.kg SV-1 adicionado, para substratos contendo dejetos de suínos e bovinos respectivamente. A adição de óleo em doses entre 45,1 e 69,4g.kg-1 a substratos contendo dejetos de bovinos ou suínos maximiza as reduções dos constituintes sólidos e fibrosos bem como potencializa as produções específicas de biogás, sendo que o dejeto de suíno ainda suporta maiores doses de inclusão de óleo residual.

ABSTRACT: This study aimed to obtain the best dose of waste cooking oil inclusion for the co-digestion of substrates prepared with dairy cattle and swine manure in order to maximize solids reductions and biogas yield. Analyses of total solids (TS), volatile solids (VS), and neutral detergent fiber (NDF) were performed during the loading and unloading of digesters, while biogas yield was measured twice a week. The maximum reduction in VS (51.4%) was reached with the inclusion of up to 54.6g waste cooking oil.kg manure-1. Maximum NDF degradation occurred with inclusions of up to 69.4g waste cooking oil.kg manure-1. Inclusions of up to 64g of waste cooking oil.kg manure-1 provided specific biogas yield of 291.4 and 251.0L biogas.kg VS-1 added to substrates with swine and cattle manure, respectively. Adding oil at doses between 45.1 and 69.4g waste cooking oil kg manure-1 to substrates composed of cattle or swine manure maximizes reductions of solids and fibrous constituents and enhances specific biogas yield. Furthermore, swine manure supports higher doses of waste cooking oil.

https://doi.org/10.1590/0103-8478cr20170517 1615 downloads

11.

Alterações respiratórias, auditivas e citogenéticas em trabalhadores de um estaleiro no Rio de Janeiro: estudo de caso
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Murata, Marcos Massao

; Costa-Amaral, Isabele Campos

; Carvalho, Leandro Vargas Barreto de

; Souza, Gabriela Rodrigues de

; Mainenti, Helena Ramirez Domingos

; Carvalho, Márcia Aparecida Ribeiro de

; Valente, Daniel

; Coutinho, Gilvania Barreto Feitosa

; Vale, Diane Francis Ribeiro do

; Rodrigues, Camila do Nascimento

; Ribeiro, Patrícia Canto

; Oliveira, Monica Stuck de

; Menezes, Marco Antônio Carneiro

; Teixeira, Liliane Reis

; Larentis, Ariane Leites

; Moreira, Maria de Fátima Ramos

; Almeida, Márcia Soalheiro de

; Castro, Hermano Albuquerque de

; Mattos, Rita de Cássia Oliveira da Costa

Cadernos Saúde Coletiva

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dec 2017, Volume 25 N. 4 Pages 394 - 404

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

Resumo Introdução Este estudo avaliou alterações respiratórias, auditivas e citogenéticas em trabalhadores de um estaleiro em Angra dos Reis, no Estado do Rio de Janeiro, relacionadas à exposição de pintores a solventes, metais e ruído no ambiente de trabalho. Métodos Foram avaliados função pulmonar, perdas auditivas e índice de reconhecimento da fala, e alterações citogenéticas pelo teste de aberrações cromossômicas. Foram avaliados manganês e chumbo em sangue por espectrometria de absorção atômica. Os indicadores de efeito utilizados para chumbo foram ALAD e ALA-U, determinados por espectrofotometria e cromatografia líquida, respectivamente. Resultados Seis dos 9 trabalhadores avaliados apresentaram alteração funcional respiratória. Quase 70% dos 18 trabalhadores avaliados apresentaram audição reduzida, com associação entre PAIR e chumbo em sangue. O percentual médio de recuperação da ALAD foi de 32,9%, com médias de ALA-U de 1,7 mg g-1 creatinina, 4,65 µg dL-1 para Pb-S e 10 µg L -1 para Mn-S entre os trabalhadores. Foram observadas associações entre ALA-D ativada com Mn-S e com a presença de aberrações cromossômicas. As alterações citogenéticas identificadas foram aneuploidias, separação prematura centromérica e aberrações como formação de anéis, quebras e união de cromátides irmãs. Conclusão os trabalhadores do estaleiro apresentam alterações que podem ser associadas à exposição ocupacional.

Abstract Introduction This study evaluated respiratory, audiological and cytogenetic alterations in shipyard workers in Angra dos Reis, state of Rio de Janeiro/Brazil, and their correlation to the occupational exposure of painters to solvents, metals and noise present. Methods We evaluated pulmonary function, hearing loss and speech recognition, as well as cytogenetic alterations. Indicators of exposure to lead and manganese in blood were evaluated by atomic absorption spectrometry. The determination of ALAD and ALA-U was performed by spectrophotometry and liquid chromatography, respectively. Results Six of the 9 workers evaluated for lung function had respiratory functional impairment. Almost 70% of the 18 evaluated workers had reduced hearing, with association between PAIR and values of lead in blood. The average percentage of recovery of ALAD was 32.9%; average was 1.7 mg g-1 creatinine for ALA-U, 4.65 µg dL-1 for Pb-B and 10 µg L-1 for Mn-B. We observed associations between activated ALA-D with Mn-B and the presence of chromosomal aberrations. Furthermore, we identified cytogenetic alterations as aneuploidy, premature centromere separation; as well as ring formation, breakage, and sister chromatid union. Conclusion Shipyard workers presented alterations that can be associated with occupational exposure.

https://doi.org/10.1590/1414-462x201700040324 1456 downloads

12.

POTASSIUM FERTILIZATION AND SOIL MANAGEMENT SYSTEMS FOR COTTON CROPS
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VIDAL, VITOR MARQUES

; SOARES, FREDERICO ANTONIO LOUREIRO

; TEIXEIRA, MARCONI BATISTA

; SOUSA, ANTONIO EVAMI CAVALCANTE

; CUNHA, FERNANDO NOBRE

Revista Caatinga

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sep 2017, Volume 30 N. 3 Pages 568 - 577

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

RESUMO O algodão possui grande importância social e econômica, devido a sua utilização na indústria têxtil, produção de óleo comestível, biodiesel e alimentação animal, dessa forma é de grande importância selecionar a cultivar que apresenta o melhor desempenho nas condições climáticas do Cerrado goiano e estudar seu comportamento em função de doses de potássio pelas inúmeras funções na planta e ainda identificar o manejo do solo que proporcione as melhores condições visando um maior desempenho da cultura. Dessa forma, objetivou-se com o experimento, avaliar cinco doses de potássio (100; 150; 200; 250; 300 kg ha-1 de K2O), dois sistemas de manejo do solo (plantio direto e plantio convencional) no crescimento, desenvolvimento e reprodução de quatro cultivares de algodão (BRS-371, BRS-372, BRS-286 e BRS-201). Os dados de crescimento e desenvolvimento do algodoeiro foram submetidos à análise de variância e para os dados referentes às doses de potássio, realizou-se análise de regressão, e referentes às cultivares e sistemas de manejo do solo teste de média, ainda avaliou-se a correlação entre as variáveis vegetativas e reprodutivas analisadas. O sistema de plantio convencional proporciona melhores respostas ao algodoeiro herbáceo independentemente dos demais fatores avaliados. A cultivar BRS-286 apresenta melhor resposta nas condições avaliadas. A cultivar BRS-371 no sistema de plantio direto apresenta maior número de ramo frutífero na dose de potássio de 105,5% e botão floral na dose de potássio de 96,16%. A área foliar específica é positivamente correlacionada com o número de capulho aos 120 dias após emergência do algodoeiro herbáceo.

ABSTRACT Cotton has great socio-economic importance due to its use in textile industry, edible oil and biodiesel production and animal feed. Thus, the objective of this work was to identify the best potassium rate and soil management for cotton crops and select among cultivars, the one that better develops in the climatic conditions of the Cerrado biome in the State of Goiás, Brazil. Thus, the effect of five potassium rates (100, 150, 200, 250 and 300 kg ha-1 of K2O) and two soil management systems (no-till and conventional tillage) on the growth, development and reproduction of four cotton cultivars (BRS-371, BRS-372, BRS-286 and BRS-201) was evaluated. The data on cotton growth and development were subjected to analysis of variance; the data on potassium rates were subjected to regression analysis; and the data on cultivars and soil management to mean test. The correlation between the vegetative and reproductive variables was also assessed. The conventional tillage system provides the best results for the herbaceous cotton, regardless of the others factors evaluated. The cultivar BRS-286 has the best results in the conditions evaluated. The cultivar BRS-371 under no-till system present the highest number of fruiting branches at a potassium rate of 105.5% and highest number of floral buds at a potassium rate of 96.16%. The specific leaf area was positively correlated with the number of bolls per plant at 120 days after emergence of the herbaceous cotton.

https://doi.org/10.1590/1983-21252017v30n304rc 2366 downloads

13.

ACCELERATED LABORATORY TEST OF THREE AMAZONIAN WOOD SPECIES CALLED TAUARI, EXPOSED TO WHITE- AND BROWN-ROT FUNGI AND COLOR RESPONSE ACCORDING TO CIE L* A* B* SYSTEM
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Okino, Esmeralda Yoshico Arakaki

; Pastore, Tereza Cristina Monteiro

; Camargos, José Arlete Alves

; Coradin, Vera Terezinha Rauber

; Teixeira, Divino Eterno

; Santana, Marcos Antonio Eduardo

; Fagg, Christopher William

Ciência Florestal

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sep 2015, Volume 25 N. 3 Pages 581 - 593

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

RESUMO Os objetivos deste estudo foram: avaliar a durabilidade natural de três espécies de tauari (Couratari guianensis Aublet, Couratari oblongifolia Ducke & Knuth R. e Couratari stellata A.C.Smith), relatar os parâmetros colorimétricos de acordo com o sistema CIE L * a * b * 1976 assim como mostrar a aparência dos blocos de madeira antes e após o ataque. Dois fungos de podridão-parda [Gloeophyllum trabeum (Persoon ex Fries) Murril. e Lentinus lepideus Fr.] e dois de podridão-branca [Trametes versicolor (Linnaeus ex Fries) Pilat e Ganoderma applanatum (Pers. ex Wallr.)] foram utilizados. A madeira de tauari foi classificada como "moderadamente resistente" a "resistente" quando exposta aos fungos Gloeophyllum trabeum, Trametes versicolor e Ganoderma applanatum. O conteúdo de extrativos das amostras atacadas diminuiu quando comparado com o controle, exceto Couratari stellata expostos a Ganoderma applanatum. Por outro lado, os conteúdos de cinzas aumentaram quando comparados com o controle, exceto para a madeira de Couratari stellata exposto ao Gloeophyllum trabeum. Todos os blocos de madeira atacados e as serragens tornaram-se mais escuras, exceto para a serragem de Couratari stellata exposto ao fungoTrametes versicolor, e mais vermelho do que a amostra sem ataque. O ΔE * médio do bloco de madeira e serragem, atacados, atingiram 29,5 e 14,3, respectivamente.

ABSTRACT The purposes of this study were to: evaluate de natural durability of three species of tauari (Couratari guianensis Aublet, Couratari oblongifolia Ducke & R.Knuth and Couratari stellata A.C.Smith), report the colorimetric parameters according to CIE L*a*b* 1976 system and also show the appearance of control and attacked wood blocks. Two brown-rot [Gloeophyllum trabeum (Persoon ex Fries) Murril. and Lentinus lepideus Fr.] and two white-rot [Trametes versicolor (Linnaeus ex Fries) Pilat and Ganoderma applanatum (Pers. ex Wallr.)] fungi were used.Tauari wood was classed as "moderately resistant" to "resistant" when exposed toGloeophyllum trabeum, Trametes versicolor andGanoderma applanatum fungi. All extractives' contents of attacked samples decreased when compared with the control (sound wood), exceptCouratari stellata exposed to Ganoderma applanatum.Conversely, all ash contents increased when compared with the control, except Couratari stellata exposed to Gloeophyllum trabeum. All attacked wood blocks and wood meal samples were darker, except wood meal from Couratari stellata exposed toTrametes versicolor, and redder than the control. The∆E* mean value in attacked wood blocks and wood meal samples attained 29.5 and 14.3, respectively.

https://doi.org/10.5902/1980509819609 1149 downloads

14.

Seleção de pré-cultivares de milho-pipoca baseado em índices não-paramétricos
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Vittorazzi, Cássio

; Amaral Júnior, Antonio Teixeira do

; Gonçalves, Leandro Simões Azeredo

; Candido, Liliam Silvia

; Silva, Thiago Rodrigues da Conceição

Revista Ciência Agronômica

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jun 2013, Volume 44 N. 2 Pages 356 - 362

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

O presente trabalho teve como objetivo fazer uma seleção prévia de pré-cultivares de milho-pipoca para o registro no MAPA, com base em diferentes caracteres, utilizando o índice de Garcia e o de soma de classificação, priorizando-se o rendimento de grãos e capacidade de expansão. Foram avaliados 16 genótipos de milho-pipoca, sendo oito variedades de polinização aberta (BRS Angela, UFVM2 - Barão de Viçosa, Viçosa, Beija-Flor, SAM, UNB2U-C3, UNB2U-C4 e UNB2U-C5) e oito híbridos (Zelia, Jade, IAC 112, P1 x P3, P1 x P7, P2 x P4, P2 x P9 e P3 x P7), em cinco ambientes. O delineamento experimental adotado foi blocos ao acaso, com três repetições, tendo sido avaliadas as características altura de planta, estande, tombamento, capacidade de expansão e rendimento de grãos. Os efeitos dos genótipos e ambientes foram significativos para todas as características, enquanto que suas interações o foram apenas para tombamento e rendimento de grãos. Os índices de Garcia e da soma de classificação foram positivamente correlacionados na classificação dos genótipos, ambos permitindo indicar as pré-cultivares UNB2U-C5 e P1 x P7 como as de melhor desempenho para regiões Norte e Noroeste do Estado do Rio de Janeiro.

The present study aimed to select pre-cultivars of popcorn maize for registration in MAPA based on different characteristics, using the Garcia and total-classification indices, giving priority to grain yield and expansion capacity. Sixteen genotypes of popcorn maize: eight open-pollinated varieties (BRS Angela, UFVM2 - Barão de Viçosa, Viçosa, Beija-Flor, SAM, UNB2U-C3, UNB2U-C4 and UNB2U-C5) and eight hybrids (Zelia, Jade, IAC 112, P1 x P3, P1 x P7, P2 x P4, P2 x P9 and P3 x P7) were evaluated in five environments. The experimental design was of randomized blocks with three replications, where the characteristics of plant height, growth, droop, expansion capacity and grain yield were evaluated. The effects of genotype and environment were significant for all characteristics, while their interactions were only significant for droop and grain yield. The Garcia and the total-classification indices correlated positively in the classification of genotypes, both indicating the pre-cultivars UNB2U-C5 and P1 x P7 as having the best performance for regions in the north and northwest of the state of Rio de Janeiro.

3060 downloads Cited 1 time in SciELO

15.

BRSMG União: common bean cultivar with jalo grain for the state of Minas Gerais
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Ramalho, Magno Antonio Patto

; Abreu, Ângela de Fátima Barbosa

; Santos, João Bosco dos

; Carneiro, José Eustáquio de Souza

; Melo, Leonardo Cunha

; Paula Júnior, Trazilbo José de

; Pereira, Helton Santos

; Del Peloso, Maria José

; Martins, Maurício

; Pereira Filho, Israel Alexandre

; Martins, Fábio Aurélio Dias

; Coelho, Maurício Antônio de Oliveira

; Moreira, José Aloisio Alves

; Giúdice, Marcos Paiva Del

; Vieira, Rogério Faria

; Faria, Luís Cláudio de

; Teixeira, Hudson

; Carneiro, Pedro Crescêncio de Souza

Crop Breeding and Applied Biotechnology

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dec 2012, Volume 12 N. 4 Pages 285 - 288

Abstract: En | Text: En | PDF: En

The bean cultivar BRSMG União as a new option of a bean cultivar with jalo grains for the state of Minas Gerais. The cultivar BRSMG União had an average grain yield of 9.8% above the mean of the controls (Jalo EEP 558 and BRS Radiante) and was resistant to powdery-mildew.

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