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ABSTRACT This study aimed to calibrate and test the SARRA-H (Système d’Analyse Régionale des Risques Agroclimatologiques) crop model for cowpea, as well as conducting a climate risk zoning for this crop in a region located in Eastern Amazon, allowing the identification of locations and sowing dates that favor the production considering both the water deficit and the probability of occurrence of severe rains during the harvest period. The model was calibrated and validated with data from experiments conducted between 2013 and 2016 in the municipality of Castanhal, PA, Brazil. Low climate risk areas were defined as those that had a water requirement satisfaction index (WRSI) greater than or equal to 0.5 in the reproductive phase combined with the occurrence of rainfall below 20 mm at the harvest for, at least, 80% of the years for which planting was simulated. The model was able to simulate the water balance, growth and development of cowpea under the climate and soil conditions of the studied location with high precision and accuracy. The optimal period for sowing cowpea comprises the interval between June 5th and 25th for regions located above 2° S and between March 25th and April 15th for regions below 2º S.

RESUMO Esta pesquisa teve como objetivo calibrar e testar o modelo de cultura SARRA-H (Système d’Analyse Régionale des Risques Agroclimatologiques) para o caupi, bem como realizar o zoneamento de risco climático para esta cultura em uma região localizada na Amazônia Oriental, a fim de permitir a identificação de locais e datas de semeadura que favoreçam a produção considerando tanto o déficit hídrico como a probabilidade de ocorrência de chuvas severas durante o período da colheita. O modelo foi calibrado e validado com dados de experimentos realizados entre 2013 e 2016 no município de Castanhal, PA. As áreas de baixo risco climático foram definidas como aquelas que apresentaram índice de satisfação da necessidade hídrica (WRSI) maior ou igual a 0,5 na fase reprodutiva combinado com a ocorrência de chuvas abaixo de 20 mm na colheita por, pelo menos, 80% dos anos onde foi simulado o plantio. O modelo foi capaz de simular o balanço hídrico, crescimento e desenvolvimento do feijão-caupi nas condições climáticas e de solo da região estudada com boa precisão e exatidão. O período de ótima semeadura para o feijão-caupi compreende o intervalo entre 5 e 25 de junho para regiões localizadas acima de 2° S, e entre 25 de março e 15 de abril para regiões abaixo de 2º S.

https://doi.org/10.1590/1807-1929/agriambi.v28n2e272180

UPLC-QTOF-MSE-Based Metabolic Profile to Screening Candidates of Biomarkers of Dwarf-Cashew Clones Resistant and Susceptible to Anthracnose (Colletotrichum gloeosporioides (Penz) Penz. & Sacc.)
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Alves, Priscilla C. C.

; Guedes, Jhonyson A. C.

; Serrano, Luiz A. L.

; Martins, Marlon V. V.

; Sousa, Debora B. de

; Silva, Gisele S.

; Ribeiro, Paulo R. V.

; Zampieri, Dávila S.

; Zocolo, Guilherme J.

Journal of the Brazilian Chemical Society

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nov 2023, Volume 34 N. 11 Pages 1652 - 1668

Abstract: En | Text: En | PDF: En

Investigating specialized plant metabolites, traditionally referred to as ‘secondary metabolites’ present in leaf extracts of cashew trees (Anacardium occidentale) resistant and susceptible to anthracnose disease was carried out using metabolomics combined with chemometric tools. We used clones of dwarf-cashew with the following variations of characteristics: resistant and healthy (CCP 76, BRS 226, BRS 189), susceptible and healthy (BRS 265), and another clone also susceptible but affected by the disease (BRS 265). The UPLC-QTOF-MSE (ultra performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry) analysis of the leaves of Anacardium clones allowed us to annotate a total of 39 metabolites. The multiple orthogonal partial discriminant analysis of the least-squares (OPLS-DA) allowed twelve metabolites to be potential biomarkers of differentiation among the clones studied. Namely, the triene-(17:3)-anacardic acid found on CCP 76 and BRS 189 clones, respectively, is the main candidate for biomarker of resistance. While catechin, B-type procyanidin isomers, and procyanidin dimer monogallate identified in BRS 265 are significant potential biomarkers of susceptibility.

https://doi.org/10.21577/0103-5053.20230097

Fruit yield and gas exchange of Tahiti lime at different irrigation depths in the Amazon
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Pinto, João V. de N.

; Costa, Deborah L. P.

; Costa, Ana P. da S.

; Pires, Mateus P.

; Rolim, Glauco de S.

; Sousa, Adriano M. L. de

; Ortega-Farias, Samuel

; Souza, Paulo J. de O. P. de

Revista Brasileira de Engenharia Agrícola e Ambiental

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jun 2023, Volume 27 N. 6 Pages 463 - 471

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

ABSTRACT Tahiti lime is a species of great economic importance worldwide. In Brazil, production is concentrated in the states of São Paulo and Pará, where it is usually grafted onto the Rangpur lime. This study aimed to analyze the effects of different irrigation depths on the fruit yield, phenology, and gas exchange of Tahiti lime trees grafted onto Swingle citrumelo. Irrigation was performed during the first year at four different irrigation depths in a random block design with five blocks and four treatments to maintain the soil matric potential in the following ranges: T1: below -50 kPa, T2: from -30 to -50 kPa, T3: from -10 to -30 kPa, and T4: above -10 kPa. The flowering, carbon assimilation rate (A), stomatal conductance (gs), transpiration (E), and fruit yield were measured. Fruits were harvested earlier in the most irrigated treatment, T4, and the yield increased from 2.22 to 6.89 kg per plant from T1 to T4. The average fruit weight escalated from 78.6 to 96.1 g from T1 to T4, and carbon assimilation increased from 6.89 to 9.51 μmol CO2m-2s-1 from T1 to T4.

RESUMO A lima ácida Tahiti é uma espécie de grande importância econômica em todo o mundo. Em território brasileiro, a produção concentra-se nos estados de São Paulo e Pará, onde geralmente é enxertada em limão-cravo. Este estudo tem como objetivo analisar o efeito de diferentes lâminas de irrigação na produção de frutos, fenologia e trocas gasosas de lima ácida Tahiti enxertada em citrumelo Swingle. A irrigação foi realizada durante o primeiro ano, com quatro lâminas de irrigação diferentes em um delineamento de blocos ao acaso com 5 blocos e 4 tratamentos, para manter o potencial matricial do solo nas seguintes faixas: T1: abaixo de -50 kPa, T2: de -30 a -50 kPa , T3: de -10 a -30 kPa e T4: acima de -10 kPa. Foram medidos florescimento, taxa de assimilação de carbono (A), condutância estomática (gs), transpiração (E) e produção de frutos. Os frutos foram colhidos mais cedo no tratamento mais irrigado, T4, e a produtividade aumentou de 2,22 para 6,89 kg por planta de T1 para T4. O peso médio dos frutos aumentou de 78,6 para 96,1 g de T1 para T4. A assimilação de carbono aumentou de 6,89 para 9,51 μmol CO2 m-2 s-1 de T1 para T4.

https://doi.org/10.1590/1807-1929/agriambi.v27n6p463-471

Streptococcus constellatus causing concomitant extra and intracranial abscesses complicated with sagittal sinus thrombosis
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Farias, Luís Arthur Brasil Gadelha

; Firmino, Natália Nogueira

; Sousa, Marcos Maciel

; Lira, Mateus Lavor

; Meireles, Leonardo Nogueira

; Stolp, Ângela Maria Veras

; Maia, Kelma Maria

; Costa, Silvia Figueiredo

; Perdigão Neto, Lauro Vieira

Revista do Instituto de Medicina Tropical de São Paulo

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2023, Volume 65 elocation e10

Abstract: En | Text: En | PDF: En

ABSTRACT Streptococcus constellatus is a gram-positive coccus member of the Streptococcus anginosus group (SAG). It can be found in the oral flora, and may cause abscess more commonly in the gastrointestinal tract, lungs, and heart. Brain abscesses are severe neurological infections with high mortality rates. Streptococcus species other than S. pneumoniae are rare causes of brain abscesses. This case report highlights a severe case of extra and intracranial abscesses due to S. constellatus in an immunocompetent host

https://doi.org/10.1590/s1678-9946202365010

MOISTURE LIMITS AND POTASSIUM CONCENTRATIONS IN THE SOIL SOLUTION FOR CULTIVATION OF LISIANTHUS (Eustoma grandiflorum) FERTIGATED UNDER PROTECTED ENVIRONMENT CONDITIONS
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Sousa Neto, Osvaldo N. de

; Rodrigues, Paulo H. V.

; Duarte, Sergio N.

; Sampaio, Pedro R. F.

; Dias, Nildo da S.

Engenharia Agrícola

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2023, Volume 43 N. 1 elocation e20220133

Abstract: En | Text: En | PDF: En

ABSTRACT Lisianthus (Eustoma grandiflorum) has been attracting great interest due to the beauty of the colors of flowers, the firmness of stems, and postharvest durability. However, knowledge of lisianthus irrigation and fertigation has generally been based on recommendations from other countries. This study aimed to establish parameters for the rational management of lisianthus fertigation under a protected environment by determining the best lower limit of soil moisture, associated with the determination of the optimal potassium concentration to be maintained in the soil solution. The treatments consisted of five soil moisture limits for the start of irrigation and maintenance of five potassium concentrations in the soil solution, with four replications. Plots of 0.7 by 0.5 m were arranged in a completely randomized block design in a factorial scheme. The soil solution was monitored by measuring moisture as well as potassium (K+) concentrations using a TDR100 reflectometer and solution extractors, respectively, during two cycles. The evaluated variables were the leaf area index, shoot fresh and dry matter, commercial yield, and average stem diameter. Lisianthus cultivation under the lower limit of soil moisture equal to 0.20 cm3 cm−3 ensured the best results for all variables of commercial interest. No effect of potassium concentrations was observed on variables of commercial interest.

https://doi.org/10.1590/1809-4430-eng.agric.v43n1e20220133/2023

Nontuberculous mycobacteria in patients of a specialty hospital
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Barboza, Grazielle Conceição Sousa

; Almeida, Isabela Neves de

; Santos, Lucas Benício dos

; Augusto, Claudio José

; Leal, Élida Aparecida

; Pádua, Cristiane Aparecida Menezes de

; Cesar, Aina Liz Alves

; Kritski, Afrânio Lineu

; Carvalho, Wânia da Silva

; Miranda, Silvana Spíndola de

; Figueredo, Lida Jouca de Assis

Revista do Instituto de Medicina Tropical de São Paulo

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2023, Volume 65 elocation e42

Abstract: En | Text: En | PDF: En

ABSTRACT The incidence and clinical characteristics of NTM diseases in Brazil remain relatively unknown. The present study describes the diagnosis of NTM isolates, the clinical presentation and treatment outcomes. We analyzed NTM isolates in patients of a tertiary hospital in the Southeast region of Brazil, from January 2008 to July 2019. The ATS/IDSA criteria for diagnosis and treatment of these patients was applied. Mycobacterium kansasii were identified in 13/113 (11.5%) patients. In 59/113 (52.2%) patients who met the ATS criteria for disease, 29/59 (49.1%) received treatment, and 22/29 (75.8%) were cured. The major species identified was M. kansasii. The most frequent symptoms among the treated patients were dyspnea and cough, and the proportion of cured patients was high.

https://doi.org/10.1590/s1678-9946202365042

Multidisciplinary Scientific Cruises for Environmental Characterization in the Santos Basin – Methods and Sampling Design
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Moreira, Daniel L.

; Dalto, Adriana G.

; Figueiredo JR, Alberto G.

; Valerio, Aline M.

; Detoni, Amalia M. S.

; Bonecker, Ana C. T.

; Signori, Camila N.

; Namiki, Cláudia

; Sasaki, Dalton K.

; Pupo, Daniel V.

; Silva, Danilo A.

; Kutner, Deborah S.

; Duque-Castaño, Diana C.

; Marcon, Eduardo H.

; Gallotta, Fabiana D. C.

; Paula, Fabiana S.

; Gallucci, Fabiane

; Roque, Gabriela C. F.

; Campos, Giulia S.

; Fonseca, Gustavo

; Mattos, Gustavo

; Lavrado, Helena P.

; Silveira, Ilson C. A. da

; Costa, Jessica O.

; Santos Filho, João R. dos

; Carneiro, Juliane C.

; Moreira, Julio C.F.

; Rozo, Laura

; Araujo, Leandro F.M.

; Lazzari, Letícia

; Silva, Letícia O. da

; Michelazzo, Luan S.

; Fernandes, Luciano F.

; Dottori, Marcelo

; Araújo Jr., Marcus A. G. de

; Chuqui, Mateus G.

; Ceccopieri, Milena

; Borges-Silva, Milton

; Kampel, Milton

; Bergo, Natascha M.

; Silva, Paulo V. M.

; Tura, Pedro M.

; Moura, Rafael B. de

; Romano, Renato G.

; Martins, Renato P.

; Carreira, Renato S.

; Toledo, Rodrigo G.A.

; Bonecker, Sérgio L.C.

; Disaró, Sibelle T.

; Rodrigues, Silvana V.

; Corbisier, Thais N.

; Vicente, Thaisa M.

; Paiva, Vitor G. de

; Pellizari, Vivian H.

; Belo, Wellington C.

; Brandini, Frederico P.

; Sousa, Silvia H.M

Ocean and Coastal Research

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2023, Volume 71 Suppl. 3 elocation e23022

Abstract: En | Text: En | PDF: En

Abstract The Santos Basin (SB) is the main petroliferous basin in the Brazilian continental margin and one of the most studied marine areas in Brazil. However, historical data suggest that new efforts should be carried out to acquire quantitative biological data, especially in the deep sea, to establish the baseline of essential ocean variables in different ecosystems for future monitoring programs. The Brazilian energy company Petrobras planned and executed 24 oceanographic cruises over a period of 2 years to assess the benthic (SANSED cruise) and pelagic (SANAGU cruise) systems of the SB (356 days at sea in 2019 and 2021/2022). These efforts were part of the Santos Project, which comprised a comprehensive environmental study aimed at investigating benthic and pelagic variables to characterize ecology, biogeochemistry, thermohaline properties of water masses, and ocean circulation patterns, geomorphology, and sedimentology, as well as organic and inorganic chemistry. Here we present the detailed sampling designs and the field methods employed on board, during the SB scientific cruises. All sampling protocols were based on standardized approaches. For the benthos analyses, triplicate sediment samples were performed using a GOMEX-type box corer (0.25 m²) or a large modified Van Veen grab (0.75 m²) at 100 stations ranging from 25 to 2400 m depth. At each station, 25 geochemical and physico-chemical parameters were analyzed in addition to micro-, meio-, and macrofauna and living foraminifera samples. For the pelagic system, 60 stations were selected to investigate the plankton community, ranging in size from pico- to macroplankton, through vertical, horizontal, and oblique net hauls (20, 200, and 500 μm mesh size), as well as 25 biogeochemical parameters collected with an aid of a CTD-rosette sampler. Part of this scientific information also serves the Regional Environmental Characterization Project (PCR-BS) in support of Petrobras’ Santos Basin drilling licensing process led by the Brazilian Environmental Agency – IBAMA. This project contributes to the sustainable development of the SB, in line with the guidelines of the United Nations Decade of Ocean Science for Sustainable Development.

https://doi.org/10.1590/2675-2824071.22072dlm

Gas exchange and growth of zucchini crop subjected to salt and water stress
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Sousa, Henderson C.

; Sousa, Geocleber G. de

; Cambissa, Paulo B. C.

; Lessa, Carla I. N.

; Goes, Geovana F.

; Silva, Fred D. B. da

; Abreu, Fernanda da S.

; Viana, Thales V. de A.

Revista Brasileira de Engenharia Agrícola e Ambiental

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nov 2022, Volume 26 N. 11 Pages 815 - 822

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

RESUMO A região semiárida apresenta o problema inerente de acúmulo de sais no solo devido ao uso de irrigação com água salobra, e o déficit hídrico que compromete o crescimento e os índices fisiológicos das culturas. Objetivou-se com este trabalho avaliar o efeito do estresse salino e hídrico no crescimento e nas trocas gasosas da cultura da abobrinha cv. Caserta. O trabalho foi realizado em área pertencente à Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Redenção, Ceará, Brasil. O delineamento experimental utilizado foi inteiramente casualizado, em esquema fatorial 5 × 2 com cinco níveis de condutividade elétrica da água de irrigação - CEa (0,5, 1,0, 1,5, 2,0 e 2,5 dS m-1), e dois regimes hídricos (50 e 100% da evapotranspiração potencial da cultura - ETc) com cinco repetições. Aos 36 dias após a semeadura foram avaliadas as variaveis:taxa de assimilação de CO2, transpiração, condutância estomática, concentração interna de carbono, temperatura foliar, índice relativo de clorofila e a eﬁciência do uso da água. Aos 45 dias após a semeadura, foram avaliadas as seguintes variáveis: altura da planta, diâmetro do caule, número de folhas e área foliar. O uso de água salobra (1 a 2,5 dS m-1) reduz os parâmetros de crescimento da abobrinha cv. Caserta. O aumento da CEa ocasionou redução nas variáveis fisiológicas. A lâmina de 100% proporcionou maiores valores para as variáveis taxa de assimilação de CO2, transpiração, e eficiência instantânea no uso da água, e a lâmina de 50% para concentração interna de carbono, com o aumento da CEa.

ABSTRACT Semi-arid regions present the inherent problem of accumulation of salts in the soil due to the use of brackish water for irrigation, and water deficit compromises the growth and physiological indices of crops. This study evaluated the effect of salt and water stress on growth and gas exchange in the zucchini cv. Caserta crop. The study was conducted at the University of International Integration of Afro-Brazilian Lusophony, Redenção, Ceará State, Brazil. The experimental design was completely randomized, in a 5 × 2 factorial scheme with five levels of electrical conductivity of the irrigation water - ECw (0.5, 1.0, 1.5, 2.0, and 2.5 dS m-1) and two water regimes (50 and 100% of the potential crop evapotranspiration - ETc), with five replicates. At 36 days after sowing, the following traits were evaluated: CO2 assimilation rate, transpiration, stomatal conductance, internal carbon concentration, leaf temperature, relative chlorophyll index, and water use efficiency. At 45 days after sowing, the plant height, stem diameter, number of leaves, and leaf area were also evaluated. The use of brackish water (1 to 2.5 dS m-1) reduced the growth parameters of zucchini cv. Caserta. The increase in ECw caused a decline in the physiological traits. Under 100% ETc, higher values of CO2 assimilation rate, transpiration, and instantaneous water use efficiency were recorded, and there was 50% ETc for internal carbon concentration, even with the increase in ECw.

https://doi.org/10.1590/1807-1929/agriambi.v26n11p815-822

Lula e Bolsonaro populistas? A visão de populismo dos jornais Folha de S. Paulo e O Estado de S. Paulo em alusão aos dois presidentes brasileiros
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Rebouças, Hébely da Silva

; Costa, Débora Silva

; Silva, Larissa Sousa

; Gonçalves, Janayde de Castro

; Nascimento, Adannick Fontes

Media & Jornalismo

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jun 2022, Volume 22 N. 40 Pages 121 - 140

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

Abstract The election of Jair Bolsonaro for the presidency of Brazil in 2019 and the return of former president Luis Inácio Lula da Silva to the electoral political scene have heated up the debate on populism both in academic literature and in the press. Interpreted sometimes as a political regime, sometimes as a type of discourse, of personality or relationship between the ruler and the ruled, populism has gained multiple meanings. Thus, the aim of this article is to investigate the application of the term by the newspapers Folha de S. Paulo and O Estado de S. Paulo, analyzing 41 editorials that use the notion of populism in reference to Bolsonaro and Lula. Using Content Analysis techniques, the study revealed, among other aspects, that, unlike Folha, Estadão uses the concept of populism more often, referring mainly to a personal/political style, in addition to evoking much more the figure of Lula as a populist. The term appears with a negative charge in both newspapers, distancing itself from a more neutral academic view and being explored as an arena for disputes between the press and the two political leaders.

Resumo A eleição de Jair Bolsonaro para a presidência do Brasil em 2019 e a volta do ex-presidente Luiz Inácio Lula da Silva ao cenário político eleitoral têm aquecido o debate sobre populismo tanto na literatura acadêmica como na imprensa. Interpretado ora como regime político, ora como tipo de discurso, de personalidade ou de relação entre governante e governados, o populismo tem ganhado múltiplos significados. Assim, é objetivo deste artigo investigar a aplicação do termo pelos jornais Folha de S. Paulo e O Estado de S. Paulo, analisando 41 editoriais que utilizam a noção de populismo em referência a Bolsonaro e Lula. A partir de técnicas de Análise de Conteúdo, o estudo revelou, dentre outros aspectos, que, diferentemente da Folha, o Estadão utiliza mais vezes o conceito de populismo, referindo-se sobretudo a um estilo pessoal/político, além de evocar bem mais a figura de Lula como populista. O termo aparece com carga negativa em ambos os jornais, distanciando-se de uma visão acadêmica mais neutra e sendo explorado como arena de disputas entre a imprensa e os dois líderes políticos.

https://doi.org/10.14195/2183-5462_40_6 23 downloads

10.

Simulation of the electrical percolation of carbonnano tube composites in polymethyl methacrylatematrix: two-dimensional andthree-dimensional analysesusing a tortuosityeffectofnanofillers
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Silva, Jessica P

; Sousa, Lailson

; Vélez, Harvey A Villa

; Coelho, Paulo H. S. L.

Revista de Ciencia y Tecnología

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jun 2022, N. 37 Pages 71 - 80

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

Resumen El presente trabajotiene como objetivo estudiar la simulación de la percolación eléctrica de nanotubos de carbono (CNT) en matriz de polimetilmetacrilato (PMMA). Para ello, se utilizaron simulaciones en análisis bidimensionales y tridimensionales a través de un programa desarrollado utilizando el método Monte Carlo, apoyado en el modelo de volumen excluido para analizar la tortuosidad geométrica en la matriz polimérica. El umbral de percolación se analizó mediante diferentes relaciones de aspecto, fracciones volumétricas y geometrías de carga conductiva. En las simulaciones, se observó una disminución en el umbral de percolación cuando aumentaba la relación de aspecto y las partículas se volvían más tortuosas, siendo estas características los parámetros para evaluar sistemas tanto bidimensionales como tridimensionales. Los resultados muestran valores de umbral de percolación de 0.625% vol y relación de aspecto de 1000 para análisisbidimensionales y 0.08% vol y relación de aspecto de 250 para análisis tridimensionales, siendo la adecuación a los principales modelos de percolación eléctrica conefecto de tortuosidadlosnanoaditivospropuestos por la literatura.

Abstract The present work aims to study the simulation of the electrical percolation of carbon nanotubes (CNTs) in polymethylmethacrylate matrix (PMMA). In order to do this, simulations were employed in two-dimensional and three-dimensional analyses through a program developed by the Monte Carlo method, supported by the excluded volume model in order to analyze the geometric tortuosity in the polymeric matrix. The percolation threshold was analyzed by different aspect ratios, volumetric fractions and conductive load geometries. In the simulations, a decrease in the percolation threshold was observed when the aspect ratio increased and the particles became more tortuous, being these characteristics the parameters to evaluate both two-dimensional and three-dimensional systems. The results show percolation threshold values of 0.625% vol and aspect ratio of 1000 for two-dimensional analyses and, 0.08% vol and aspect ratio of 250 for three-dimensional analyses, being the adequacy to the main models for electrical percolation with tortuosity effect of the nanocarriers proposed by literature.

https://doi.org/10.36995/j.recyt.2022.37.008 16 downloads

11.

PERFIL DE ELEMENTOS INORGÂNICOS EM AMOSTRAS DE MEL DO ESTADO DO MARANHÃO COMO UM POTENCIAL BIOINDICADOR DE ORIGEM GEOGRÁFICA
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Leal, Sonaly S.

; Sousa, Eliane R.

; Silvério, Gilmar

; Lima, Paulo C.

Química Nova

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may 2022, Volume 45 N. 5 Pages 531 - 536

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

Honey is a substance that contains a variety of macro and micro minerals present in the range between 0.02-1.03%. The main objective of this study was to determine the concentration of elements inorganic in 15 honey samples collected in various regions of Maranhão (Northeast Brazil), using highly sensitive analytical techniques, such as inductively coupled plasma optical emission spectrometry (ICP-OES), in addition to applying multivariate statistical tools, such as Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) in the treatment of data. The method presented detection limits between 0.4 to 2.8 mg kg-1. Fifteen samples and 19 metals were analyzed, and two of these samples had high levels of lead, exceeding the limits allowed by Brazilian legislation. Thus, it can be concluded that the presence of potentially toxic metals in honey is an indication that the production areas may be contaminated by different external sources. The chemometric analysis of the data by PCA and HCA allowed to classify honey in two main groups: honey produced in urban areas and honey produced in rural areas with PCA explaining 73% of the data variance with the sum of the first 3 components.

https://doi.org/10.21577/0100-4042.20170856

12.

Response of common bean to Rhizobium reinoculation in topdressing
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Teixeira, Itamar R.

; Lopes, Paulo R.

; Sousa, Westefann S.

; Teixeira, Gisele C. da S.

Revista Brasileira de Engenharia Agrícola e Ambiental

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apr 2022, Volume 26 N. 4 Pages 274 - 282

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

RESUMO A capacidade de resposta do feijoeiro em fixar o nitrogênio atmosférico é questionável, principalmente devido à sua incapacidade de fornecer todo o nitrogênio nas fases de floração e enchimento de grãos, quando a cultura mais necessita. Assim, uma nova aplicação de inoculante pode manter a população de rizóbios do solo em níveis adequados, atendendo toda a demanda de nitrogênio da planta. Deste modo, o este trabalho tem como objetivo investigar a capacidade de nodulação e a produção de feijão comum, submetido a doses de reinoculação de Rhizobium em cobertura, em dois estádios fenológicos da cultura. Para tanto, foi conduzido um experimento no delineamento de blocos casualizados, em esquema fatorial 4 × 2 + 2, com quatro repetições. Os tratamentos consistiram na aplicação de quatro doses de inoculante líquido Rhizobium tropici (SEMIA 4088), concentração de 2 × 109 CFU g-1, adicionado em cobertura (0, 100, 200 e 400 mL ha-1), em dois estádios de desenvolvimento da planta (V4 e R5) e dois tratamentos adicionais (inoculação via semente na dose de 100 g do produto por 50 kg de sementes e adubação mineral de nitrogênio na dose de 16 kg ha-1 aplicado na semeadura e 60 kg ha-1 em cobertura, fracionada em duas etapas, sendo metade aplicada no estádio V3 e a outra metade no estádio V4). A aplicação do inoculante aumentou a taxa de nodulação do feijoeiro cultivar BRS Cometa, bem como a biomassa seca produzida pelas plantas, com o emprego de doses respectivamente de 232 e 221 mL ha-1. A dose de 257 mL ha-1 do inoculante líquido aplicado no estádio V4 e a inoculação via semente proporcionaram maior produtividade de feijão sem a necessidade de suplementação de nitrogênio mineral.

ABSTRACT The response capacity of the bean to fix atmospheric nitrogen is questionable, mainly due to its inability to supply all the nitrogen in the flowering and grain filling phases when the crop needs it most. Thus, a new application of inoculant can keep the population of rhizobia in the soil at adequate levels, meeting all the nitrogen demands of the plant. This study aimed to investigate the nodulation capacity and the production of beans submitted to doses and reinoculation of Rhizobium in topdressing under field conditions in two growth stages. For this, an experiment was conducted using a randomized block design with four replicates in a 4 × 2 + 2 factorial scheme. The treatments consisted of the application of four doses of liquid inoculant containing Rhizobium tropici (SEMIA 4088), in the concentration 2 × 109 CFU g-1, in topdressing (0, 100, 200 and 400 mL ha-1), in two development stages (V4 and R5) of plants, and two additional treatments (inoculation via seed at a dose of 100 g of the product per 50 kg of seeds and mineral nitrogen fertilization at a dose of 16 kg ha-1 applied at sowing and 60 kg ha-1 in topdressing, divided into two stages, with half being applied at the stage V3 and the other half in V4 stage).The inoculant application increased the nodulation rates of bean cultivar BRS Cometa and the dry biomass produced by plants, using doses of 232 and 221 mL ha-1, respectively. The dose of 257mL ha-1 of the liquid inoculant applied in topdressing at the V4 stage, and the inoculation via seed provide greater common bean yield without supplementing mineral nitrogen.

https://doi.org/10.1590/1807-1929/agriambi.v26n4p274-282

13.

Phenology, abundance and efficiency of pollinators drive the reproductive success of Sarcoglottis acaulis (Orchidaceae) at the Atlantic Forest
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Albuquerque, Nayara S.L.

; Milet-Pinheiro, Paulo

; Cruz, Denise D.

; Pimentel, Georgiana M.S.

; Sousa, Aércia C.

; Carneiro, Adriennius M.

; Machado, Isabel C.

Acta Botanica Brasilica

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2022, Volume 36 elocation e2021abb0121

Abstract: En | Text: En | PDF: En

ABSTRACT Male euglossine bees (Euglossine: Apidae) pollinate flowers of as many as 1,000 Neotropical plant species and there is evidence that blooming in these plants is synchronized with the seasonality of euglossine pollinators. The present study aimed to monitor for two years the phenology of Sarcoglottis acaulis (Orchidaceae - Spiranthinae subtribe) and the seasonality of its pollinators at three Atlantic Forest fragments, two of which surrounded by urban anthropized areas. Phenologies in the three areas were related to abiotic factors, suggesting that precipitation on months prior to the beginning of the flowering period influenced the fructification rates of S. acaulis. Additionally, water shortage during the driest months resulted in vegetative dormancy. Sarcoglottis acaulis sets only a low number of fruits by self-pollination, and the plant’s reproductive success depended on the frequency of its main pollinator, i.e., the male euglossine bees Eulaema atleticana. Lower rates of pollinia removal were observed in areas where this bee is less frequent and, consequently, less fruits were formed, suggesting a high dependency on this pollinator.

https://doi.org/10.1590/0102-33062021abb0121

14.

Entre la memoria y el olvido 1964-2014: el golpe de Estado ayer y hoy en Brasil
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Dias, Luiz Antonio

; Lopes de Sousa, Rafael

La trama de la comunicación

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dec 2021, Volume 25 N. 2 Pages 75 - 89

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

This paper aims discuss and problematize the reception of two important São Paulo’s newspaper - Folha de S. Paulo and O Estado de São Paulo - the civil military coup in 1964. Editorials analyzed and linked to the new political developments materials with emphasis in April 1964 also treat the "celebration" or "remembrance" brought out in 2014. Finally point out as the disclaimers made by two newspapers are full of subterfuge that aimed justifying the support of these newspapers to the coup that overthrew President João Goulart. Nevertheless presenting the legitimacy of these events, defending its legality.

El objetivo de este artículo es mostrar, discutir y problematizar la recepción de dos de los principales periódicos de São Paulo –Folha de S. Paulo y O Estado de S. Paulo – al golpe de Estado cívico-militar de 1964, en Brasil. Para ello se analizaron editoriales y materiales asociados al nuevo escenario político con énfasis en el mes de abril de 1964. Intentamos también tratar de la “celebración” o del “recuerdo” sacados a la luz en las efemérides de 2014. Por último, tuvimos también la intención de señalar cómo las representaciones por parte de Folha de S. Paulo y O Estado de S. Paulo traían subterfugios destinados a justificar su apoyo al golpe de Estado que derrocó al presidente João Goulart, dado que esos dos periódicos legitimaron el golpe y defendieron su legalidad.

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15.

Actual evapotranspiration and response factors of the cowpea in Amazonian edaphoclimatic conditions
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Moura, Vandeilson B.

; Farias, Vivian D. da S.

; Nunes, Hildo G. G. C.

; Sousa, Denis de P.

; Ferreira, Denilson P.

; Souza, Paulo J. de O. P. de

Revista Brasileira de Engenharia Agrícola e Ambiental

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sep 2021, Volume 25 N. 9 Pages 604 - 611

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

RESUMO Devido à sensibilidade do feijão-caupi ao déficit hídrico no período de estiagem no ambiente amazônico, surge a necessidade de estudos relacionados com a gestão da água e otimização da produção anual por área. Assim, objetivou-se estimar a evapotranspiração da cultura (ETc) e a evapotranspiração real (ETr) e avaliar o efeito de distintas lâminas de irrigação sobre o fator de resposta da produção (Ky) e da biomassa seca (Kss) do feijão-caupi cultivar BR3-Tracuateua nas condições edafoclimáticas da região amazônica. O experimento foi realizado em blocos ao acaso, com seis repetições e quatro tratamentos: T1 (100% ETc), T2 (50% ETc), T3 (25% ETc) e T4 (0% ETc), iniciados na fase reprodutiva com sistema de irrigação por gotejamento. A evapotranspiração total do feijão-caupi cultivar BR3-Tracuateua foi de 337.5, 284.35, 258.62 e 219.82 mm com consumo médio de 4.6, 3.90, 3.54 e 3.01 mm d-1 para T1, T2, T3 e T4, respectivamente. A fase de emergência apresentou evaporação de 5.19 mm d-1 e as fases reprodutiva, vegetativa e senescência ETc média de 4.87, 4.84 e 3.32 mm d-1, respectivamente. O estádio de floração obteve maior demanda hídrica (5.88 mm d-1). Houve diferença significativa na produtividade entre todos os tratamentos com quedas no rendimento dos grãos de 18.91, 33.12 e 57.17% para T2, T3 e T4 com Ky de 1.48 e Kss de 2.03, 1.08 e 0.87 para os estádios de floração, enchimento de grãos e maturação fisiológica, respectivamente.

ABSTRACT Due to the sensitivity of the cowpea to water deficit during the dry season in the Amazonian environment, there is a need for studies related to water management and the optimization of annual yield. Thus, the objective was to estimate the crop evapotranspiration (ETc) and the actual evapotranspiration (ETr), whilst also evaluating the effect of different irrigation depths on the yield response factor (Ky) and dry biomass (Kss) of the cowpea cultivar BR3-Tracuateua under edaphoclimatic conditions in the Amazon region. The experiment was carried out in randomized blocks, with six replicates and four treatments: T1 (100% ETc), T2 (50% ETc), T3 (25% ETc), and T4 (0% ETc), commencing in the reproductive phase with a drip irrigation system. The total evapotranspiration recorded for the cowpea cultivar BR3-Tracuateua across the four treatments was 337.5, 284.35, 258.62, and 219.82 mm with an average consumption of 4.6, 3.90, 3.54, and 3.01 mm d-1 for T1, T2, T3, and T4, respectively. The emergence phase showed evaporation rate of 5.19 mm d-1 and the reproductive, vegetative, and senescence ETc phases showed evaporation of 4.87, 4.84, and 3.32 mm d-1, respectively. The flowering stage had the greatest water demand (5.88 mm d-1). There was a significant difference in the crop yield among all treatments, with decreases of 18.91, 33.12 and 57.17% for T2, T3 and T4 in the grain yield, with a Ky of 1.48, and Kss of 2.03, 1.08, and 0.87 for the flowering, grain filling, and physiological maturation stages, respectively.

https://doi.org/10.1590/1807-1929/agriambi.v25n9p604-611 163 downloads

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