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Abstract The objectives of this work were to investigate the occurrence of parasites in feces of cats, compare different coproparasitological techniques for their diagnosis and determine associations with parasitism. The samples were processed using three different coproparasitological techniques: centrifugal flotation in sucrose, centrifugal flotation in ZnSO4 and simple sedimentation. The parasitic association between parasitism and variables such as age, sex and fecal consistency was performed using the chi-square test or the G test with a significance level of 5%. A total of 237 samples were analyzed, of which 93 (39.2%) were positive, being Ancylostoma spp. (17.3%), Giardia intestinalis (12.2%), Platynosomum illiciens (8.0%), Cystoisospora spp. (6.3%), Toxoplasma gondii/ Hammondia hammondi (3.4%), Diphyllobothriidae (2.1%), Toxocara spp. (1.7%), Dipylidium caninum (1.3%) and Mesocestoides spp. (0.8%). In the parasitism association analysis, it was possible to verify a statistical difference in the age category for Cystoisospora spp. (p=0.001) observing a strong relationship between parasitism and young animals, the association with sex proved to be important for P. illiciens (p<0.001) with a higher frequency of parasitized females and fecal consistency revealed to be related to the parasites G. intestinalis (p=0.007) and P. illiciens (p=0.033) showing a higher number of positive animals for these parasites with normal fecal consistency. In conclusion, we observed a higher occurrence of Ancylostoma spp. and G. intestinalis in fecal samples from domestic cats received in routine diagnoses and the presence of other parasites with zoonotic potential, as well as the relationship of these diagnosed parasites with the categories sex, age and fecal consistency.

Resumo Os objetivos deste trabalho foram investigar a ocorrência de parasitos em fezes de gatos, comparar diferentes técnicas coproparasitológicas para o seu diagnóstico e determinar as associações com o parasitismo. As amostras foram processadas usando três diferentes técnicas coproparasitológicas: centrífugo-flutuação em sacarose, centrífugo-flutuação em ZnSO4 e sedimentação simples. A associação parasitária entre o parasitismo e variáveis, como idade, sexo e consistência fecal, foi realizada pelo teste de qui-quadrado ou teste de G com nível de significância de 5%. No total, foram analisadas 237 amostras, das quais 93 (39,2%) foram positivas, sendo diagnosticados os parasitos Ancylostoma spp. (17,3%), Giardia intestinalis (12,2%), Platynosomum illiciens (8,0%), Cystoisospora spp. (6,3%), Toxoplasma gondii/ Hammondia hammondi (3,4%), Diphyllobothriidae (2,1%), Toxocara spp. (1,7%), Dipylidium caninum (1,3%) e Mesocestoides spp. (0,8%). Na análise de associação entre o parasitismo e as outras variáveis, foi possível verificar diferença estatística na categoria idade para Cystoisospora spp. (p=0,001), observando forte relação entre o parasitismo e animais jovens. A associação com o sexo demonstrou ser importante para P. illiciens (p<0,001), com maior frequência de fêmeas parasitadas. E a consistência fecal revelou ter relação com os parasitos G. intestinalis (p=0,007) e P. illiciens (p=0,033), com maior frequência de fezes com consistência normal nos animais positivos para esses parasitos. Em conclusão, foi observada uma maior ocorrência de Ancylostoma spp. e G. intestinalis em amostras fecais de gatos domésticos, recebidas em diagnósticos de rotina e a presença de outros parasitos com potencial zoonótico, como também, a relação desses parasitos diagnosticados com as categorias sexo, idade e consistência fecal.

https://doi.org/10.1590/s1984-29612023049

Contribution of public oral pathology services to the diagnosis of oral and oropharyngeal cancer in Brazil
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LOUREDO, Brendo Vinicius Rodrigues

; CURADO, Maria Paula

; PENAFORT, Paulo Victor Mendes

; DE ARRUDA, José Alcides Almeida

; ABREU, Lucas Guimarães

; MESQUITA, Ricardo Alves

; PINTO-JÚNIOR, Décio dos Santos

; ABRAHÃO, Aline Corrêa

; ANDRADE, Bruno Augusto Benevenuto de

; AGOSTINI, Michelle

; MORAES, Renata Mendonça

; ANBINDER, Ana Lia

; DOURADO, Pedro Henrique Silva

; SANTOS, Teresa Cristina Ribeiro Bartholomeu dos

; PIRES, Fábio Ramoa

; BORDIGNON, Natalia Cristina Trentin

; GONDAK, Rogério Oliveira

; DE OLIVEIRA, Marcia Gaiger

; CARRARD, Vinicius Coelho

; MARTINS, Manoela Domingues

; SOUSA-NETO, Sebastião Silvério

; ARANTES, Diego Antônio Costa

; MENDONÇA, Elismauro Francisco

; CIESLAK-SANCHES, Silvia Roberta

; ANTUNES, Daniella Moraes

; AMARAL-SILVA, Gleyson Kleber do

; MANIERI, Patricia Rubia

; RAMALHO, Luciana Maria Pedreira

; DOS SANTOS, Jean Nunes

; LEONEL, Augusto César Leal da Silva

; PEREZ, Danyel Elias da Cruz

; VERHEUL, Hannah Carmem Carlos Ribeiro Silva

; BARROSO, Keila Martha Amorim

; RODRIGUES, Flávia Luiza Santos

; GONZAGA, Amanda Katarinny Goes

; FERNANDES, Romana Renery

; DE SOUZA, Lélia Batista

; SOUZA, Lucas Lacerda de

; PONTES, Flávia Sirotheau Corrêa

; PONTES, Hélder Antônio Rebelo

; SILVA, Caroline Alfaia

; CÂMARA, Jeconias

; LIBÓRIO-KIMURA, Tatiana Nayara

; SANTOS-SILVA, Alan Roger

; LOPES, Márcio Ajudarte

; ALMEIDA, Oslei Paes de

; ROMAÑACH, Mário José

; VARGAS, Pablo Agustin

Brazilian Oral Research

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2023, Volume 37 elocation e126

Abstract: En | Text: En | PDF: En

Abstract This study aimed to evaluate the contribution of oral and maxillofacial pathology laboratories (OMPLs) in Brazilian public universities to the diagnosis of lip, oral cavity, and oropharyngeal squamous cell carcinoma (SCC). A cross-sectional study was performed using biopsy records from a consortium of sixteen public OMPLs from all regions of Brazil (North, Northeast, Central-West, Southeast, and South). Clinical and demographic data of patients diagnosed with lip, oral cavity, and oropharyngeal SCC between 2010 and 2019 were collected from the patients’ histopathological records. Of the 120,010 oral and maxillofacial biopsies (2010-2019), 6.9% (8,321 cases) were diagnosed as lip (0.8%, 951 cases), oral cavity (4.9%, 5,971 cases), and oropharyngeal (1.2%, 1,399 cases) SCCs. Most cases were from Brazil’s Southeast (64.5%), where six of the OMPLs analyzed are located. The predominant profile of patients with lip and oral cavity SCC was Caucasian men, with a mean age over 60 years, low schooling level, and a previous history of heavy tobacco consumption. In the oropharyngeal group, the majority were non-Caucasian men, with a mean age under 60 years, had a low education level, and were former/current tobacco and alcohol users. According to data from the Brazilian National Cancer Institute, approximately 9.9% of the total lip, oral cavity, and oropharyngeal SCCs reported over the last decade in Brazil may have been diagnosed at the OMPLs included in the current study. Therefore, this data confirms the contribution of public OMPLs with respect to the important diagnostic support they provide to the oral healthcare services extended by the Brazilian Public Health System.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0126

Rainfall erosivity estimation: Comparison and statistical assessment among methods using data from Southeastern Brazil
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Cardoso, Dione Pereira

; Avanzi, Junior Cesar

; Ferreira, Daniel Furtado

; Acuña-Guzman, Salvador Francisco

; Silva, Marx Leandro Naves

; Pires, Fábio Ribeiro

; Curi, Nilton

Revista Brasileira de Ciência do Solo

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2022, Volume 46 elocation e0210122

Abstract: En | Text: En | PDF: En

ABSTRACT Rainfall erosivity (R factor) is one of the six factors of the Universal Soil Loss Equation, being calculated based on the product of rainfall kinetic energy multiplied by its 30-minute maximum intensity. However, the lack of detailed and reliable rainfall data in many parts of the world has driven the use of other methods to estimate rainfall erosivity based on daily, monthly or annual data. These methods still need to be assessed to determine if their estimates are consistent with the standard method for calculating rainfall erosivity. This study aimed to select a consistent method for such replacement in Brazilian conditions without access the rainfall intensity data. The tested methods included: modified Fournier, MF; modified Fournier by Zhang, MF-Z; modified Fournier by Men, MF-M; Rainfall Disaggregation, RD; TRMM Satellite with modified Fournier coefficient, TRMM-F; and TRMM Satellite with monthly rainfall, TRMM-M. The rainfall data were obtained from the USP Meteorological Station, referring to the period from 2009 to 2015. The analyses were performed according to the Additive Main effects and Multiplicative Interaction (AMMI) model and Scott-Knott statistical tests. Considering the 1:1 line, all methods had a good adjustment, presenting similar behavior in relation to the standard method. The methods behaved differently for monthly and annual periods. The MF method proved to be capable of consistently replacing the standard method in all aforementioned situations. Considering the driest period, any method can be used. For annual rainfall erosivity estimation, the RD, MF, TRMM-F and TRMM-M methods can be applied; highlighting that the TRMM-based methods are optimal for locations without on-site rain gauges. Additionally, it was computed that the modified Fournier by Men and the modified Fournier by Zhang underestimated and overestimated the rainfall erosivity, respectively.

https://doi.org/10.36783/18069657rbcs20210122

Performance of cover crops under two irrigation regimes in the Coastal Tablelands region of Brazil
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Nicole, Lucas Rodrigues

; Cardoso, Dione Pereira

; Pires, Fábio Ribeiro

; Bonomo, Robson

; Netto, Benedicto Barbosa

; Belo, Alessandra Ferreira

Revista Ceres

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aug 2021, Volume 68 N. 4 Pages 301 - 309

Abstract: En | Text: En | PDF: En

ABSTRACT There is currently a lack of information regarding the performance of cover crops grown in the Coastal Tablelands region in the North of the Brazilian state of Espírito Santo, where zero tillage is increasingly being adopted. The objective of this study was to evaluate the agronomic performance of six cover crops (ruzi grass, jack bean, and the millets ADR 300, ADR 500, ADRf 6010, and BRS 1501) under two irrigation regimes. A field experiment setup was based on randomized blocks with split plots and four repetitions. Shoot dry matter content, plant height, leaf area, chlorophyll fluorescence, and root growth of the cover crops were evaluated. The irrigation regime influences the agronomic performance of most of the cover crops, with the exception of jack bean and ADRf 6010 millet, which were tolerant to water deficiency, based on our evaluations of the variables shoot dry matter, plant height, and leaf area. In terms of biomass production, ADRf 6010 millet is the most suitable crop for use in conservation systems under conditions of water stress in this region.

https://doi.org/10.1590/0034-737x202168040007 20 downloads

Atualização das Diretrizes Brasileiras de Valvopatias – 2020
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Tarasoutchi, Flavio

; Montera, Marcelo Westerlund

; Ramos, Auristela Isabel de Oliveira

; Sampaio, Roney Orismar

; Rosa, Vitor Emer Egypto

; Accorsi, Tarso Augusto Duenhas

; Santis, Antonio de

; Fernandes, João Ricardo Cordeiro

; Pires, Lucas José Tachotti

; Spina, Guilherme S.

; Vieira, Marcelo Luiz Campos

; Lavitola, Paulo de Lara

; Ávila, Walkiria Samuel

; Paixão, Milena Ribeiro

; Bignoto, Tiago

; Togna, Dorival Júlio Della

; Mesquita, Evandro Tinoco

; Esteves, William Antônio de Magalhães

; Atik, Fernando

; Colafranceschi, Alexandre Siciliano

; Moises, Valdir Ambrósio

; Kiyose, Alberto Takeshi

; Pomerantzeff, Pablo M. A.

; Lemos, Pedro A.

; Brito Junior, Fabio Sandoli de

; Weksler, Clara

; Brandão, Carlos Manuel de Almeida

; Poffo, Robinson

; Simões, Ricardo

; Rassi, Salvador

; Leães, Paulo Ernesto

; Mourilhe-Rocha, Ricardo

; Pena, José Luiz Barros

; Jatene, Fabio Biscegli

; Barbosa, Márcia de Melo

; Abizaid, Alexandre

; Ribeiro, Henrique Barbosa

; Bacal, Fernando

; Rochitte, Carlos Eduardo

; Fonseca, José Honório de Almeida Palma da

; Ghorayeb, Samira Kaissar Nasr

; Lopes, Marcelo Antonio Cartaxo Queiroga

; Spina, Salvador Vicente

; Pignatelli, Ricardo H.

; Saraiva, José Francisco Kerr

Arquivos Brasileiros de Cardiologia

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oct 2020, Volume 115 N. 4 Pages 720 - 775

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

https://doi.org/10.36660/abc.20201047 17824 downloads

Different Patterns Of Nutrient Cycling In Contiguous Phytophysiognomies Of Atlantic Forest, Brazil
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Menezes, Luis Fernando Tavares de

; Souza, Rodrigo Camara de

; Pereira, Marcos Gervasio

; Pires, Fábio Ribeiro

; Fanticelle, Bruno Santanna

; Araujo-Filho, Paulo Batista

Floresta e Ambiente

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2020, Volume 27 N. 1 elocation e20190045

Abstract: En | Text: En | PDF: En

ABSTRACT The present study aimed to evaluate fine aboveground litterfall, deposition of nitrogen and phosphorus from total litterfall and leaf litter decomposition in areas of tall forest (Mata Alta) and low forest on sandy soils (Mussununga) in southeastern Brazil. Fine litterfall was collected monthly for two years (from June/2007 to May/2009) in 10 conical collectors (0.25 m2) in each phytophysiognomy (1 ha plots). The material was subsequently separated into leaves, branches, flowers and fruits, and unidentified material. Leaf decomposition rates were evaluated using 15 litterbags, three of which were collected every 30 days. Higher litterfall occurred in both phytophysiognomies during the rainy season, with leaves predominating. The lowest litterfall, nutrient input, and leaf litter decomposition values appeared to be nutrient conservation strategies, contributing to the ecological functioning of the Mussununga where soil fertility was lower than in the Mata Alta.

https://doi.org/10.1590/2179-8087.004519 671 downloads

MENTAL FATIGUE DOES NOT AFFECT HEART RATE RECOVERY BUT IMPAIRS PERFORMANCE IN HANDBALL PLAYERS
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Penna, Eduardo Macedo

; Filho, Edson

; Campos, Bruno Teobaldo

; Pires, Daniel Alvarez

; Nakamura, Fabio Yuzo

; Mendes, Thiago Teixeira

; Lopes, Thiago Ribeiro

; Smith, Mitchell

; Prado, Luciano Sales

Revista Brasileira de Medicina do Esporte

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sep 2018, Volume 24 N. 5 Pages 347 - 351

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

RESUMO Introdução: Este estudo envolveu uma análise do impacto da fadiga mental sobre a recuperação da frequência cardíaca (RFC), medidas subjetivas de fadiga e desempenho de corrida intermitente em jogadores de handebol. Objetivo: Este estudo visou (1) examinar os efeitos de um estado induzido de fadiga mental no desempenho aeróbico de jogadores de handebol, medido pelo teste Yo-Yo IR1 e (2) explorar possíveis alterações na regulação da frequência cardíaca através da análise da RFC. Métodos: Doze jogadores de handebol (idade: 17,50 ± 3,63 anos, 5 ± 2,2 anos de prática) realizaram um teste Yo-Yo IR1 em duas ocasiões, com pelo menos 72 horas de intervalo. O teste Yo-Yo IR1 foi precedido por tratamento de 30 minutos que consistiu no teste Stroop Color-Word para induzir estado de fadiga mental. Os participantes na condição de controle assistiram a um vídeo emocionalmente neutro. Resultados: Foram observadas taxas mais elevadas de fadiga mental e esforço mental após o teste Stroop para o grupo experimental. Não foram observadas diferenças na motivação entre as condições. Além disso, a indução de fadiga mental prejudicou o desempenho de corrida e levou a maior PSE durante o teste Yo-Yo IR1. Não obstante, não foram observadas alterações na RFC nem nas concentrações de lactato sanguíneo entre as condições. Conclusão: Em conjunto, esses resultados sugerem que a fadiga mental afeta o desempenho de corrida intermitente, sem alterar os valores de RFC. Nível de Evidência III; Estudo de caso-controle.

ABSTRACT Introduction: This study involved an analysis of the impact of mental fatigue on heart rate recovery (HRR), subjective measures of fatigue and intermittent running performance in handball players. Objective: This study was aimed at (1) examining the effects of an induced state of mental fatigue on the aerobic performance of handball players, as measured by the Yo-Yo IR1 test, and (2) exploring possible changes in heart rate regulation through HRR analysis. Methods: Twelve handball players (age: 17.50 ± 3.63 years; 5 ± 2.2 years of practice) undertook a Yo-Yo IR1 test on two occasions, separated by an interval of at least 72 hours. The Yo-Yo IR1 test was preceded by a 30-min treatment, consisting of the Stroop Color-Word Test, to induce mental fatigue. Participants in the control condition watched an emotionally neutral video. Results: Higher ratings of mental fatigue and mental effort following the Stroop Test were observed for the experimental group. No differences in motivation were observed between conditions. Moreover, the induction of mental fatigue impaired running performance and led to a higher RPE during the Yo-Yo IR1 test. Notwithstanding, no changes in HRR or blood lactate levels were observed across conditions. Conclusion: Altogether, these results suggest that mental fatigue impairs intermittent running performance, without affecting HRR values. Level of Evidence III; Case-Control study.

RESUMEN Introducción: En el presente estudio se analizó el impacto de la fatiga mental en la recuperación de la frecuencia cardíaca (RFC), las medidas subjetivas de fatiga y el rendimiento intermitente en atletas de handball. Objetivo: los objetivos de este estudio fueron (1) examinar los efectos de un estado inducido de fatiga mental en el rendimiento aeróbico de atletas de handball, medida por el Yo-Yo IR1, y (2) explorar las posibles alteraciones en la regulación de la frecuencia cardíaca a través del análisis RFC. Métodos: Doce atletas (edad: 17,50 ± 3,63 años, 5 ± 2,2 años de práctica) realizaron un test Yo-Yo IR1 en dos ocasiones, separados por un intervalo de al menos 72 horas. El test Yo-Yo IR1 fue precedido por un tratamiento de 30 minutos, consistente en el Stroop Color-Word Test, para inducir un estado de fatiga mental. Los participantes en la condición de control asistieron un video emocionalmente neutro. Resultados: Se observaron altas percepciones de fatiga y esfuerzo mental después del test de Stroop para el grupo experimental. No se observaron diferencias de motivación entre las condiciones. Además, la inducción de fatiga mental perjudicó el desempeño de carrera y llevó a un mayor PSE durante el test Yo-Yo IR1. No obstante, no se observaron alteraciones en la RFC y en las concentraciones de lactato sanguíneo entre las condiciones. Conclusión: En conjunto, estos resultados sugieren que la fatiga mental afecta el rendimiento intermitente de la carrera, sin alterar los valores de FCR. Nivel de Evidencia III; Estudio de caso-control.

https://doi.org/10.1590/1517-869220182405180483 1578 downloads

Efeito da densidade populacional de Canavalia ensiformis na fitorremediação de solo contaminado com sulfentrazone
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Ferraço, Mariana

; Pires, Fábio Ribeiro

; Belo, Alessandra Ferreira

; Celin Filho, Ademar

; Bonomo, Robson

Revista Ciência Agronômica

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mar 2017, Volume 48 N. 1 Pages 32 - 40

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

RESUMO Existem poucas informações quanto à fitorremediação do herbicida sulfentrazone, reforçando assim a necessidade de pesquisas que visam oferecer alternativas seguras para sua utilização em sistemas que integram a sucessão/rotação de culturas, focando a sustentabilidade da produção agrícola, sem prejuízos ao sistema produtivo e ao ambiente. Com isso, objetivou-se neste trabalho avaliar a influência da densidade populacional de Canavalia ensiformis sobre a fitorremediação de solo contaminado com o herbicida sulfentrazone. O experimento constou de um fatorial 4 x 3, no delineamento inteiramente casualizado, com quatro repetições. O primeiro fator foi constituído pela combinação de quatro densidades populacionais da espécie fitorremediadora C. ensiformis (0; 10; 20 e 40 plantas m-2) e o segundo por três doses do herbicida sulfentrazone (0; 200 e 400 g ha-1). Aos 75 dias após a emergência, as plantas foram cortadas na altura do coleto. Nesse mesmo período, efetuou-se, no próprio vaso, a semeadura da espécie bioindicadora da presença do sulfentrazone, milheto (Pennisetum glaucum), na qual foram avaliadas a fitotoxicidade, a altura e a biomassa fresca e seca da parte aérea e da raiz. O cultivo prévio da espécie fitorremediadora C. ensiformis promoveu a remediação do solo contaminado com sulfentrazone. A densidade populacional mínima de C. ensiformis que possibilita o desenvolvimento do milheto é de 10 plantas m-2. Todavia, melhores resultados foram obtidos na densidade de 40 plantas m-2.

ABSTRACT There is little information on the phytoremediation of the herbicide sulfentrazone. This reinforces the need for research aimed at providing safe alternatives to its use in systems that integrate crop succession or rotation, focusing on the sustainability of agricultural production, and without harming the production system or the environment. The aim of this study therefore, was to evaluate the influence of population density in Canavalia ensiformis on the phytoremediation of soil contaminated with the herbicide sulfentrazone. The experiment consisted of a 4 x 3 factorial in a completely randomised design with four replications. The first factor comprised a combination of four population densities of the species C. ensiformis, used in phytoremediation, (0, 10, 20 and 40 plants m-2), and the second of three doses of the herbicide sulfentrazone (0, 200 and 400 g ha-1). At 75 days after emergence, the plants were cut level with the collar. At the same time, pearl millet (Pennisetum glaucum), a bioindicator species for sulfentrazone, was planted in each pot, and the phytotoxicity was evaluated together with the height, and fresh and dry shoot and root biomass. Earlier cultivation of the species, C. ensiformis, helped remediation of soil contaminated with sulfentrazone. The minimum population density of C. ensiformis which allows millet to develop is 10 plants m-2; however, better results were obtained at a density of 40 plants m-2.

https://doi.org/10.5935/1806-6690.20170004 1592 downloads

SULFENTRAZONE PHYTOREMEDIATION UNDER FIELD CONDITIONS
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BELO, ALESSANDRA FERREIRA

; PIRES, FÁBIO RIBEIRO

; BONOMO, ROBSON

; CARGNELUTTI FILHO, ALBERTO

; TENIS, LUIS HENRIQUE ORTELAN

Revista Caatinga

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mar 2016, Volume 29 N. 1 Pages 119 - 126

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

RESUMO: A fitorremediação é uma técnica que vem sendo utilizada na descontaminação de solos tratados com herbicidas de longo efeito residual devido à sua eficiência na descontaminação. Objetivou-se avaliar a fitorremediação do herbicida sulfentrazone em campo, pelas espécies Canavalia ensiformis e Crotalaria juncea. Os tratamentos foram compostos pela combinação entre as espécies vegetais C. ensiformis e C. juncea, mais um tratamento controle (com capina manual) e quatro doses do herbicida sulfentrazone. O delineamento experimental foi blocos casualizados com parcelas subdivididas, com quatro repetições. As espécies fitorremediadoras foram mantidas no campo por 75 dias. Neste mesmo período, foi mantido o tratamento controle. Após esse período, a área experimental foi novamente sulcada e fertilizada considerando as necessidades do Pennisetum glaucum, planta utilizada como indicadora da presença de sulfentrazone. Aos 34 dias após a semeadura do P. glaucum, avaliaram-se a massa fresca e seca da parte aérea. Ao final do ciclo, determinaram-se altura, diâmetro do colmo, comprimento do entre nó, número de folhas, número de panículas, massa fresca e seca da panícula. O cultivo prévio das espécies fitorremediadoras C. ensiformis e C. juncea promove a remediação do sulfentrazone. C. ensiformis é a espécie mais eficiente na descontaminação do herbicida sulfentrazone a campo.

ABSTRACT: Phytoremediation is a technique that has been used with increasing frequency to decontaminate soils treated with herbicides that have long-term residual effects, such as sulfentrazone. The goal was to assess phytoremediation of the herbicide sulfentrazone under field conditions by the species Canavalia ensiformis and Crotalaria juncea. The treatments consisted of combinations of the plant species C. ensiformis and C. juncea plus a control treatment (with manual weeding) and four doses of the herbicide sulfentrazone. The experimental design used herein was a split-plot randomized block design with four replicates per subplot. The treatments were kept in the field for 75 days. After this period, the experimental area was again furrowed and fertilized, considering the requirements for Pennisetum glaucum, a plant used as an indicator of the presence of sulfentrazone. Thirty-four days after sowing pearl millet, the fresh and dry shoot masses of the plants were assessed. At the end of the cycle, the plant height, stem diameter, internode length, number of leaves, number of panicles, and fresh and dry panicle masses were determined. Previous cultivation of phytoremediation species C. ensiformis and C. juncea promotes sulfentrazone remediation. C. ensiformis is the most efficient species for the decontamination of the herbicide sulfentrazone under field conditions.

https://doi.org/10.1590/1983-21252016v29n114rc 1169 downloads

10.

CARACTERIZAÇÃO DE VERMICOMPOSTO PRODUZIDO COM PALHA DE CAFÉ E ESTERCO BOVINO
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NASCIMENTO, ALEX FAVARO

; PIRES, FÁBIO RIBEIRO

; CZEPAK, MARCIO PAULO

; FERNANDES, ADRIANO ALVES

; RODRIGUES, JOSÉ DE OLIVEIRA

Revista Caatinga

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dec 2015, Volume 28 N. 4 Pages 1 - 9

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

RESUMO: Apesar do conhecimento que se tem sobre os benefícios do húmus de minhoca ou vermicomposto há necessidade de se avaliar a viabilidade técnica de utilização de outras fontes de carbono para as minhocas. O objetivo do trabalho foi avaliar o efeito da palha de café associada ao esterco bovino para produção de vermicomposto sobre as minhocas e a qualidade do húmus obtido. Os tratamentos foram constituídos de: 1) Esterco Bovino 100%; 2) Palha de Café 25% + Esterco Bovino 75%; 3) Palha de Café 50% + Esterco Bovino 50%; 4) Palha de Café 75% + Esterco Bovino 25%; e 5) Palha de Café 100%. A palha de café e o esterco permaneceram incubados por 64 dias para que ficassem disponíveis para a alimentação das minhocas e mais 84 dias para digestão do substrato. A palha de café não interferiu no incremento populacional das minhocas. O aumento percentual da palha na constituição do vermicomposto aumentou a disponibilidade de N, K, Ca e Cu, mas reduziu em P, Mg, S, Mn, Fe e Zn. Visando o fornecimento médio de nutrientes, a proporção de 50% de palha de café e 50% de esterco de bovino é a mais indicada.

ABSTRACT: Despite the knowledge that you have about the benefits of the humus of the worms or vermicompost, there is a need to evaluate the technical feasibility of using other sources of carbon for worms. The objective was to evaluate the possibility of using straw of coffee to vermicompost production, the effects of their use on worms and on the quality of humus obtained. The evaluated treatments consisted of: (1 straw of coffee (SC) 100%; 2 SC 75% + manure (MA); 3 50% SC + 50% MA; 4 25% SC + 75% MA; 5 100% MA). The straw of coffee and the manure were incubated for 64 days to make them available to feed the worms and more 84 days to digest the substrate. The straw of coffee increased the number of worms without resulting in harmful effects. The percentage increment of the straw in the constitution of the vermicompost increased the availability of N, K, Ca and Cu, but it reduced the availability of Mg, S, Mn, P, Fe and Zn. Aiming o the medium supply of nutrients, the proportion of the 50% of straw of coffee and 50% of manure is designated.

https://doi.org/10.1590/1983-21252015v28n401rc 3655 downloads

11.

Effects of tillage systems on physical properties of a cohesive yellow argisol in the northern state of Espírito Santo, Brazil
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Zuffo, Valmir José

; Pires, Fabio Ribeiro

; Bonomo, Robson

; Vitória, Edney Leandro da

; Celin Filho, Ademar

; Santos, Eduardo Oliveira de Jesus

Revista Brasileira de Ciência do Solo

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oct 2013, Volume 37 N. 5 Pages 1372 - 1382

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

Os sistemas de preparo do solo são parte fundamental da tecnologia de produção das culturas, tanto no sentido de rendimento das culturas quanto sob a perspectiva da conservação do solo e da sustentabilidade dos sistemas de produção. O objetivo deste artigo foi avaliar os efeitos de cinco sistemas de preparo do solo nos atributos físicos de um Argissolo Amarelo coeso. O experimento foi instalado em 21/01/2011 e conduzido em campo por 260 dias, em área anteriormente utilizada com pastagem de Brachiaria nunca corrigida ou fertilizada, irrigada por sistema de aspersão de baixa pressão. Os tratamentos, implantados em cinco repetições e em delineamento de blocos ao acaso, foram: grade aradora (duas vezes) + niveladora + camalhão sobre a linha, confeccionado 135 dias após o transplantio (GA com CAM); grade aradora (duas vezes) + niveladora (GA sem CAM); subsolador florestal (SF); grade aradora (duas vezes) + niveladora + escarificação com três hastes sobre a linha de plantio (GA + ELP); e grade aradora (duas vezes) + niveladora + escarificação com três hastes em área total (GA + EAT). Todos os preparos receberam sulcamento mecanizado, visando ao plantio do mamoeiro. Após a implantação dos tratamentos, foi determinada a resistência mecânica à penetração (RP), acompanhada pela umidade do solo, pelo diâmetro médio ponderado (DMP), pelo diâmetro médio geométrico (DMG), pela densidade do solo (DS), pela macroporosidade (Ma), pela microporosidade (Mi) e pelo número de frutos por planta. Houve diferenças de resistência à penetração entre os tratamentos. O subsolador apresentou-se mais efetivo na diminuição da RP até 0,35 m de distância da planta, no sentido transversal à linha de plantio. O escarificador resultou em RP menor que GA ou SF, mesmo a 0,40 m de profundidade, e foi mais eficiente em maiores distâncias transversalmente à planta. Todos os preparos produziram RP entre 2,0 e 3,0 MPa na profundidade de maior concentração de raízes do mamoeiro (0-0,25 m), fornecendo boas condições físicas até essa profundidade. Não houve diferença estatística entre os tratamentos para DS, Ma, Mi, DMP e DMG, a 0,20 m de profundidade. A grade aradora alterou os atributos físicos do solo em maior intensidade nessa mesma profundidade. O uso da escarificação e do preparo reduzido com subsolador florestal ou a confecção do camalhão não melhorou o ambiente radicular, em relação a seus atributos físicos. O uso de preparo reduzido com subsolador florestal produziu menor número de frutos por planta do que todos os outros tratamentos, os quais não diferiram entre si.

Tillage systems are a key element of the technology of crop production, both with a view to crop yield and from the perspective of soil conservation and sustainability of the production system. The aim of this paper was to evaluate the effects of five tillage systems on the physical properties of a cohesive Yellow Argisol. The experiment was installed in the field on January 21, 2011 and lasted 260 days, in an area previously used as pasture with Brachiaria grass without liming or fertilization, but irrigated by a low pressure spray system. The treatments, in five replications and in a randomized block design, consisted of: 1) disk plow (twice) + disk harrow + ridge-furrow tillage (raising a ridge along the planting row), 135 days after transplanting (DP + RID); 2) disk plow (twice) + disk harrow (DP no RID); 3) subsoiler (SB); 4) disk plow (twice) + disk harrow + scarification with three shanks along the plant row (DP + SPR); and 5) disk plow (twice) + disk harrow + scarification with three shanks in the total area (DP + STA). In all tillage systems, furrows were mechanically opened for the papaya plants. After the treatments, the mechanical resistance to penetration was determined, followed by soil moisture, mean weight diameter (MWD), geometric mean diameter (GMD), bulk density (BD), macroporosity (Ma), microporosity (Mi), and number of fruits per plant. There were differences in penetration resistance (PR) between treatments. The subsoiler was more effective to decrease RP to a distance of 0.35 m from the plants, perpendicular to the plant row. The scarifier resulted in a lower PR than DP or SB, even at the depth of 0.40 m, and it was more effective at greater distances perpendicular to the plant. All tillage systems induced a PR between 2.0 and 3.0 MPa at the depth with the highest concentration of papaya tree roots (0-0.25 m), improving the physical conditions to this depth. There was no statistical difference among the treatments for BD, Ma, Mi, MWD, and GMD at a depth of 0.20 m. The disk plow changed the physical properties of the soil most intensely to a depth of 0.20 m. The use of scarification, reduced tillage with a forest subsoiler, or ridge-furrow tillage did not improve the physical properties in the rhizosphere. Reduced tillage with a forest subsoiler resulted in a lower number of fruits per plant than all other treatments, which did not differ from each other.

2070 downloads

12.

Oral squamous cell carcinoma: clinicopathological features from 346 cases from a single Oral Pathology service during an 8-year period
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Pires, Fabio Ramoa

; Ramos, Amanda Barreto

; Oliveira, Jade Bittencourt Coutinho de

; Tavares, Amanda Serra

; Luz, Priscilla Silva Ribeiro da

; Santos, Teresa Cristina Ribeiro Bartholomeu dos

Journal of Applied Oral Science

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sep 2013, Volume 21 N. 5 Pages 460 - 467

Abstract: En | Text: En | PDF: En

Epidemiological data from oral squamous cell carcinoma (OSCC) is mostly derived from North American, European and East Asian populations. OBJECTIVE: The aim of this study was to report the demographic and clinicopathological features from OSCC diagnosed in an Oral Pathology service in southeastern Brazil in an 8-year period. MATERIAL AND METHODS: All OSCC diagnosed from 2005 to 2012 were reviewed, including histological analysis of all hematoxylin and eosin stained slides and review of all demographic and clinical information from the laboratory records. RESULTS: A total of 346 OSCC was retrieved and males represented 67% of the sample. Mean age of the patients was 62.3 years-old and females were affected a decade older than males (p<0.001). Mean time of complaint with the tumors was 10 months and site distribution showed that the border of the tongue (37%), alveolar mucosa/gingiva (20%) and floor of mouth/ventral tongue (19%) were the most common affected sites. Mean size of the tumors was 3.4 cm, with no differences for males and females (p=0.091) and males reported both tobacco and alcohol consumption more frequently than females. Histological grade of the tumors revealed that 27%, 40% and 21% of the tumors were, respectively, classified as well-, moderately- and poorly-differentiated OSCC, 26 cases (7.5%) were microinvasive OSCC and 17 cases were OSCC variants. OSCC in males mostly affected the border of tongue, floor of mouth/ventral tongue and alveolar mucosa/gingival, while they were more frequent on the border of tongue, alveolar mucosa/gingival and buccal mucosa/buccal sulcus in females (p=0.004). CONCLUSIONS: The present data reflect the epidemiological characteristics of OSCC diagnosed in a public Oral Pathology laboratory in southeastern Brazil and have highlighted several differences in clinicopathological features when comparing male and female OSCC-affected patients.

https://doi.org/10.1590/1679-775720130317 5425 downloads Cited 5 times in SciELO

13.

Susceptibilidade de espécies de plantas com potencial de fitorremediação do herbicida sulfentrazone
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Madalão, João Carlos

; Pires, Fábio Ribeiro

; Cargnelutti Filho, Alberto

; Nascimento, Alex Favaro

; Chagas, Kristhiano

; Araújo, Rodrigo Silva

; Procópio, Sergio de Oliveira

; Bonomo, Robson

Revista Ceres

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feb 2013, Volume 60 N. 1 Pages 111 - 121

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

Dentre as novas tecnologias, a fitorremediação é opção para a descontaminação de áreas que receberam intensas aplicações de herbicidas. Este trabalho foi desenvolvido com o objetivo de selecionar espécies com potencial para a fitorremediação de solos contaminados com o herbicida sulfentrazone. As espécies testadas foram: Calopogonium mucunoides, híbrido de sorgo (Sorghum bicolor x Sorghum sudanense), Crotalaria breviflora, Crotalaria juncea, Canavalia ensiformis, Dolichos lablab, Stizolobium deeringianum e Stizolobium aterrimum, cultivadas em cinco doses do sulfentrazone (0, 200, 400, 800 e 1.600 g ha-1). O experimento foi instalado em casa de vegetação, utilizando-se vasos com capacidade para 6 L, preenchidos com amostras de solo coletadas na profundidade de 0-20 cm. Foram avaliadas a fitotoxicidade do herbicida, a altura de plantas e a massa de matéria seca da parte aérea e de raízes. As espécies que manifestaram os menores sintomas de fitotoxicidade e os maiores índices de altura e matéria fresca e seca foram C. juncea, C. ensiformis e D. lablab, sendo selecionadas como tolerantes ao herbicida sulfentrazone e com potencial para fitorremediação.

Among the new technologies, phytoremediation is considered as an option for the decontamination of areas that thave undergone intense herbicide applications. This work aimed to select species with potential to the phytoremediation of soils contaminated with the herbicide sulfentrazone. The tested species were Calopogonium mucunoides, hybrid Sorghum (Sorghum bicolor x Sorghum sudanense), Crotalaria breviflora, Crotalaria juncea, Canavalia ensiformis, Dolichos lablab, Stizolobium deeringianum e Stizolobium aterrimum. The experiment was conducted in a greenhouse, using 6 dm³ vases filled with soil samples collected at a depth of 20 cm. The experimental design was the randomized blocks in a factorial scheme of 8 x 5, with four repetitions, which were composed by the eight plant species, and five doses of sulfentrazone (0, 200, 400, 800 and 1,600g ha-1). We evaluated the phytotoxicity of the herbicide, plant height and dry weight of shoots and roots. The species showing the least symptoms of phytotoxicity and the highest rates of height and fresh and dry biomass were C. juncea, C. ensiformis and D. lablab, which were selected as tolerant to the herbicide sulfentrazone and with potential for phytoremediation.

4116 downloads Cited 6 times in SciELO

14.

Uso de leguminosas na fitorremediação de solo contaminado com sulfentrazone
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Madalão, João Carlos

; Pires, Fábio Ribeiro

; Chagas, Kristhiano

; Cargnelutti Filho, Alberto

; Procópio, Sergio Oliveira

Pesquisa Agropecuária Tropical

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dec 2012, Volume 42 N. 4 Pages 390 - 396

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

Resíduos de sulfentrazone podem permanecer no solo por cerca de dois anos, oferecendo risco de contaminação a lençóis freáticos e impossibilitando o cultivo de espécies susceptíveis. Diante disto, a fitorremediação pode representar uma opção para a descontaminação de áreas que sofreram com intensas aplicações deste herbicida. O presente trabalho avaliou o potencial remediador das espécies Crotalaria juncea, Canavalia ensiformis, Cajanus cajan e Cajanus cajan (anão), com relação ao herbicida sulfentrazone, utilizando-se o milheto (Pennisetum glaucum) como planta bioindicadora. O experimento foi instalado em casa-de-vegetação e os tratamentos compostos pela combinação entre as quatro espécies citadas, além da testemunha, e quatro doses de sulfentrazone (0 g i.a. ha-1, 200 g i.a. ha-1, 400 g i.a. ha-1 e 800 g i.a. ha-1). Foram avaliadas a altura de plantas, fitotoxicidade ao sulfentrazone e biomassa fresca e seca da parte aérea. Quando P. glaucum foi cultivado após C. juncea, apresentou maior ganho em biomassa e maior altura, e os sintomas de fitotoxicidade foram menos acentuados. C. juncea apresentou a maior capacidade de fitorremediar solos contaminados com sulfentrazone.

Residual sulfentrazone may remain in the soil for around two years, being a source of groundwater contamination and preventing the growth of susceptible plants. So, phytoremediation may represent an option for decontaminating areas which were highly affected by applications of this herbicide. This study aimed at evaluating the potential of Crotalaria juncea, Canavalia ensiformis, Cajanus cajan and Cajanus cajan (dwarf) for remediation of soil contaminated with sulfentrazone, using millet (Pennisetum glaucum) as a bioindicator plant. The experiment was installed in a greenhouse and treatments consisted of the four species already mentioned, plus a control, and four sulfentrazone doses (0 g a.i. ha-1, 200 g a.i. ha-1, 400 g a.i. ha-1 and 800 g a.i. ha-1). Plants height, phytotoxicity to sulfentrazone and fresh and dry matter were evaluated. When P. glaucum was grown after C. juncea, the fresh and dry matter, as well as plant height, were higher, while the phytotoxicity symptoms were less evident. C. juncea showed the best results for phytoremediation of soils contaminated with sulfentrazone.

6694 downloads Cited 7 times in SciELO

15.

Profundidade de semeadura e crescimento inicial de espécies forrageiras utilizadas para cobertura do solo
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Pacheco, Leandro Pereira

; Pires, Fábio Ribeiro

; Monteiro, Fernando Pereira

; Procópio, Sérgio Oliveira

; Assis, Renato Lara de

; Petter, Fabiano André

Ciência e Agrotecnologia

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oct 2010, Volume 34 N. 5 Pages 1211 - 1218

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

O uso do consórcio entre plantas de cobertura e culturas anuais, no Cerrado, tem sido prática cada vez mais difundida, pela possibilidade de implantação das forrageiras durante o desenvolvimento das culturas anuais, através da diferença de profundidade e sistema de semeadura. Objetivou-se, neste trabalho avaliar a emergência e algumas características agronômicas de quatro espécies de plantas de cobertura, em diferentes profundidades, visando ao seu emprego na consorciação e sobressemeadura em culturas anuais. O experimento foi conduzido em casa-de-vegetação, no delineamento experimental de blocos ao acaso, em arranjo fatorial 4 x 7, composto pelas plantas de cobertura Brachiaria brizantha, B. decumbens, B. ruziziensis e Panicum maximum cv. Tanzânia, e por seis profundidades de semeadura e um sistema de cobertura de sementes (0 sem cobertura, 0 com cobertura, 1, 4, 8, 10 e 15 cm). As sementes foram semeadas em vasos e as plantas cultivadas por 40 dias. Avaliou-se o índice e o tempo de emergência, a altura de plantas, a fitomassa verde e seca da parte aérea, a área foliar, a fitomassa seca radicular e a densidade de comprimento radicular. O maior desenvolvimento das plantas estudadas foi detectado nas semeaduras até 1 cm de profundidade. O P. maximum não apresentou aptidão para uso em consórcio com culturas anuais.Não se recomenda a semeadura das plantas de cobertura a partir de 10 cm.

The use of the consortium between cover crops and annual crops in the Cerrado, is an increasingly widespread practice, because of the possibility of deployment of cover crops during the development of annual crops by the difference in depth and seeding system. The objective was to evaluate the emergency and some agronomic characteristics of four species of cover crops at different seeding depths, to use them in consortium and oversown in annual crops. The experiment was conducted in a greenhouse, and the experimental design of randomized blocks in factorial arranged 4 x 7, where it was four cover crops: Brachiaria brizantha, B. decumbens, B. ruziziensis and Panicum maximum cv. Tanzania, and six depths of sowing and a cover of seed system (0 cm without any mulch, 0 cm with a mulch of soybean leaves, 1, 4, 8, 10 and 15 cm). The cover crops were cropped in vase for 40 days. We evaluated emergence index, emergence time, plant height, green biomass and dry biomass of the above-ground part, leaf area, root dry biomass and root length density. The largest development of the cover crops was detected in the sowing up to 1 cm of depth. The P. maximum showed no ability to use in consortium with annual crops. The sowing of the cover crops from 10 cm is not recommended.

5851 downloads Cited 6 times in SciELO

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