Pesquisa | SciELO

Reuse made by the separation of whey can reduce the waste of human milk. However, the authors are not aware of the literature on treatments in human whey, made available by pasteurization holder, freeze-drying, spray drying, and high hydrostatic pressure. In this context, the present study applied treatments to human whey and evaluated their lipid and immunological quality. Among the results, a different formation in the triacylglycerol profile was evidenced after the application of spray drying and high hydrostatic pressure, while pasteurization and freeze-drying presented ion intensity close to the control human whey. In addition, pasteurization proved to be adequate for lipid nutritional quality and transformation factor-β1 (TGF-β1) concentration, while an increase in interleukin-10 (IL-10) levels was promoted, between 73 and 80%, after freeze-drying, spray drying, and high hydrostatic pressure. Through the principal component analysis, it is noteworthy that the processes presented divergences in terms of the effects caused, with similarity only between pasteurization and freeze-drying in the composition of fatty acids. However, it was observed that all processes were able to maintain the nutrients. Nevertheless, it is relevant to consider individual characteristics presented and the interest in the desired quality, which can be promising as a complementary product to infant feeding.

https://doi.org/10.21577/0103-5053.20230102

MICROCLIMATE AND IRRIGATION AFFECT THE GROWTH DYNAMICS OF SUGARCANE IN A SEMIARID ENVIRONMENT
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Carvalho, Herica F. de S.

; Silva, Thieres G. F. da

; Santos, Cloves V. B. dos

; Silva, Marcelo J. da

; Leitão, Mario de M. V. B. R.

; Moura, Magna S. B. de

Engenharia Agrícola

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Dez 2023, Volume 43 Nº 6 elocation e20230145

Resumo: En | Texto: En | PDF: En

ABSTRACT The aim of this study was to assess how microclimate variables and irrigation affect the growth of sugarcane. The experiment was conducted using the VAT90-212 cultivar in the Semi-arid region of Brazil. The microclimate was monitored and by quantifying the irrigation depth. Nine campaigns were carried out in the field to collect morphological and biomass data. The data were subjected to descriptive statistics, so as to generate the mean values and/or sum between the campaigns. Using the correlation coefficient, the extent, sign and significance of the relationship between the response and explanatory variables were evaluated. The direct or indirect effects of the explanatory variables on the response variables were identified by path analysis. There was a significant correlation between microclimate variables and the morphological and biomass variables of the sugarcane, with a strong contribution from the intercepted fraction of the photosynthetically active radiation, the wind speed and soil temperature. The negative correlation with irrigation suggests that excess water impaired the growth dynamics of the crop. It is concluded that the growth of sugarcane is closely related to its capacity to intercept radiation, to the wind, thermal regime of the soil and irrigation management.

https://doi.org/10.1590/1809-4430-eng.agric.v43n6e20230145/2023

Ultrasound-assisted extraction of active compounds from Beta vulgaris using deep eutectic solvents
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DEMUNER, Antonio

; DIAS, Amanda

; BLANK, Daiane

; CERCEAU, Cristiane

; SOUSA, Rita

; REIS, Cesar

; SANTOS, Marcelo

; STRINGHETA, Paulo

Food Science and Technology

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2023, Volume 43 elocation e107022

Resumo: En | Texto: En | PDF: En

Abstract The aim of this study is to investigate the application of ultrasound in the extraction of betanin from beets (Beta vulgaris) using Deep eutectic solvents (DES). The extraction process was optimized using response surface methodology. The time variable was found to be correlated with the extraction performance. Three DES (choline chloride: urea (CC:U), choline chloride: glycerol (CC:G), and choline chloride: citric acid (CC:Ac)) were studied. The concentration of betanin extracted with CC:U, CC:G, and CC:Ac was 41.27-67.51, 82.46-104.45, and 50.06-111.93 mg/100 g. The maximum betanin extraction of 111.193 mg/100 g was achieved with CC:Ac in 38 min using 44% DES in water in an ultrasonic bath. These results demonstrate that DESs are excellent solvents for the extraction of betanin with superior efficiency to conventional extraction solvents. Ultrasound significantly improved the efficiency of betanin extraction from beets. However, a higher betanin content in the extracts did not translate into greater active antioxidant capacity, which may be related to the synergistic effects of other compounds present in the beet extracts. This study is the first attempt to optimize the parameters for ultrasound extraction of betanin from B. vulgaris using eutectic solvents.

https://doi.org/10.1590/fst.107022

Diffuse Reflectance FTIR of Latent Fingerprints and Discriminant Analysis for Sex Identification in Humans
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Souza, Marco Antonio de

; Santos, Alexandre S.

; Silva, Sebastião William da

; Braga, Jez Willian B.

; Sousa, Marcelo Henrique

Journal of the Brazilian Chemical Society

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2023, Volume 34 Nº 6 Páginas 819 - 825

Resumo: En | Texto: En | PDF: En

Latent fingerprint is an important crime scene evidence, but it is not always recoverable or technically suitable for analysis with fingerprint patterns. Forensic science has shown that other information can be explored from traces using chemical compounds. Infrared spectroscopy is a nondestructive technique that is widely applied to a variety of forensic evidence. In this work, infrared spectroscopy and partial least square discriminant analysis were used to determine the human sex based on latent fingermark analysis. Fingerprint samples were taken from 42 male and female donors, then kept in either dark or light storage conditions, and the Fourier transform infrared (FTIR) spectra were measured considering a period of up to 30 days from collection. The regions from 3000 to 2800 cm-1 and 1790 to 1150 cm-1 presented the greatest differences in the peak intensities among the two sex groups. The results showed a correct discrimination rate higher than 80%.

https://doi.org/10.21577/0103-5053.20220150

Voltammetric Study on the Electrowinning of Cobalt in the Presence of Additives
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Castro, Danielle C. de

; Santos, Iranildes D. dos

; Mansur, Marcelo B.

; Dutra, Achilles J. B.

Journal of the Brazilian Chemical Society

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2023, Volume 34 Nº 9 Páginas 1360 - 1372

Resumo: En | Texto: En | PDF: En

Cobalt electrowinning is an intensive energy-consuming process, and allied to the increasing demand for pure cobalt, has led to the need for optimization. Based on a statistical approach, the effects of additives, including sodium lauryl sulfate (SLS), boric acid (H3BO3), and cobalt chloride (CoCl2) on the current efficiency of electrowinning have been studied using the cyclic voltammetry (CV). CV tests indicated the concentration range of the more appropriate additives to be used in the factorial design study of electrowinning. Regarding the electrowinning tests, the addition of 0.05 g L-1 SLS, 10 g L-1 H3BO3, 50 g L-1 Na2SO4, and 1 g L-1 CoCl2 led to a current efficiency of 96% and energy consumption of 1.95 kWh kg-1, along with a smooth metallic deposit without evident pits and other defects. SLS in its higher concentration level led to the formation of compact structures, while the higher concentration level of H3BO3, lightens the deposits.

https://doi.org/10.21577/0103-5053.20230048

WATER DEMAND AND WATER USE EFFICIENCY IN ‘PALMER’ MANGO CULTIVATION IN THE LOW-MIDDLE SÃO FRANCISCO VALLEY
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Silva Junior, Francisco B. da

; Silva, Marcelo J. da

; Carvalho, Herica F. de S.

; Santos, Cloves Vilas Boas dos

; Silva, Thieres G. F. da

; Souza, Luciana S. B. de

; Leitão, Mario de M. Vilas Boas R.

; Moura, Magna S. B. de

Engenharia Agrícola

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2023, Volume 43 Nº 3 elocation e20220189

Resumo: En | Texto: En | PDF: En

ABSTRACT The study aimed to determine the evapotranspiration (ETc) of the mango cv. ‘Palmer’ over two productive cycles, analyzing water-use efficiency (WUE) and crop water productivity (CWP) to propose average crop coefficient (Kc) values for improving irrigation management under cultivation conditions in the Low-Middle São Francisco Valley. The study was conducted from July 2019 to May 2021 in a commercial ‘Palmer’ mango orchard in Petrolina, State of Pernambuco, Brazil. Micrometeorological data was collected throughout the experimental period. The crop evapotranspiration (ETc) was determined using Bowen ratio energy balance (BREB), and then the Kc, WUE, and CWP were determined. The highest ETc values occurred during the floral induction phase (5.14 ± 0.85 mm day-1), with a Kc of 0.85; however, the lowest values were observed during the fruit maturation phase (3.60 ± 0.73 mm day-1), with a Kc of 0.91. Average water consumption per cycle was 1445 mm, with a daily average of 4.39 mm day-1. WUE and CWP were 16.9 and 24.5 kg ha-1 mm-1, respectively. Average Kc values of 0.81, 0.76, 0.85, 0.90, 0.95, and 0.91 are recommended for the vegetative growth, rest period and shoot maturation, floral induction, flowering, fruit development, and fruit maturation phases, respectively.

https://doi.org/10.1590/1809-4430-eng.agric.v43n3e20220189/2023

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 Supl. 3 elocation e23022

Resumo: En | Texto: 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

First record of insect-plant interaction in Late Cretaceous fossils from Nelson Island (South Shetland Islands Archipelago), Antarctica
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SANTOS FILHO, EDILSON B. DOS

; BRUM, ARTHUR S.

; SOUZA, GEOVANE A. DE

; FIGUEIREDO, RODRIGO G.

; USMA, CRISTIAN D.

; RICETTI, JOÃO HENRIQUE Z.

; TREVISAN, CRISTINE

; LEPPE, MARCELO

; SAYÃO, JULIANA M.

; LIMA, FLAVIANA J.

; OLIVEIRA, GUSTAVO R.

; KELLNER, ALEXANDER W.A.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 Supl. 3 elocation e20231268

Resumo: En | Texto: En | PDF: En

Abstract Despite the enormous paleobotanical record on different islands of the Antarctic Peninsula, the evidence of insect activity associated with fossilized plants is scarce. Here we report the first evidence of insect-plant interaction from Cretaceous deposits, more precisely from a new locality at the Rip Point area, Nelson Island (Antarctic Peninsula). The macrofossil assemblage includes isolated Nothofagus sp. leaf impressions, a common component of the Antarctic paleoflora. Two hundred leaves were examined, of which 15 showed evidence of insect activity, displaying variations in size, shape, and preservation. Two types of interaction damage, galls and mines, were identified. A single specimen retained a circular scar recognized as galling scar, while meandering tracks were considered mines. These traces of herbivore insect activity, correspond to the oldest known record of this type of interaction of West Antarctica and the oldest record of insect-plant interaction in Nothofagus sp. reported so far.

https://doi.org/10.1590/0001-3765202320231268

[SciELO Preprints] - Guideline of the Brazilian Society of Cardiology on Diagnosis and Treatment of Patients with Chagas Disease Cardiomyopathy
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Marin-Neto, José Antonio Rassi Jr., Anis Moraes Oliveira, Gláucia M. Lemos Correia, Luís Claudio Novaes Ramos Jr., Alberto Hasslocher-Moreno, Alejandro Marcel Luquetti Ostermayer, Alejandro Sousa, Andréa Silvestre de Amato Vincenzo de Paola, Angelo Sobral de Sousa, Antonio Carlos Pinho Ribeiro, Antonio Luiz Correia Filho, Dalmo Moraes de Souza, Dilma do Socorro Cunha-Neto, Edecio J. A. Ramires, Felix Bacal, Fernando Pereira Nunes, Maria do Carmo Martinelli Filho, Martino Ibrahim Scanavacca, Maurício Magalhães Saraiva, Roberto Alves de Oliveira Júnior, Wilson M. Lorga-Filho, Adalberto de Jesus Benevides de Almeida Guimarães, Adriana Lopes Latado Braga, Adriana Sarmento de Oliveira, Adriana V. L. Sarabanda, Alvaro Yecê das Neves Pinto, Ana Assis Lopes do Carmo, André Schmidt, André Costa, Andréa Rodrigues da Ianni, Barbara Maria Markman Filho, Brivaldo Eduardo Rochitte, Carlos Thé Macedo, Carolina Mady, Charles Chevillard, Christophe Bittencourt das Virgens, Cláudio Marcelo Nery de Castro, Cleudson De Paoli de Carvalho Britto, Constança Felícia Pisani, Cristiano do Carmo Rassi, Daniela C. Sobral Filho, Dario Rodrigues Almeida, Dirceu A. Bocchi, Edimar T. Mesquita, Evandro de Souza Nogueira Sardinha Mendes, Fernanda Pereira, Francisca Tatiana Sperandio da Silva, Gilberto Marcelo de Lima Peixoto, Giselle Glotz de Lima, Gustavo H. Veloso, Henrique Turin Moreira, Henrique Bellotti Lopes, Hugo Masciarelli Francisco Pinto, Ibraim Pinto Dias, João Carlos Bemfica, João Marcos Silva-Nunes, João Paulo Soares Barreto-Filho, José Augusto Kerr Saraiva, José Francisco Lannes-Vieira, Joseli Menezes Oliveira, Joselina Luzia V. Armaganijan, Luciana Martins, Luiz Cláudio C. Sangenis, Luiz Henrique Barbosa, Marco Paulo Almeida-Santos, Marcos Antônio Simões, Marcos Vinicius Shikanai-Yasuda, Maria Aparecida Vieira Moreira, Maria da Consolação Higuchi, Maria de Lourdes Costa Monteiro, Maria Rita de Cássia Felix Mediano, Mauro Felippe Maia Lima, Mayara T. Oliveira, Maykon Moreira Dias Romano , Minna Nitz, Nadjar de Tarso Jorge Medeiros, Paulo Vieira Alves, Renato Alkmim Teixeira, Ricardo Coury Pedrosa, Roberto Aras, Roque Morais Torres, Rosália dos Santos Povoa, Rui Manoel Rassi, Sérgio Gabriel Salles Xavier, Sérgio Marinho Martins Alves , Silvia B. N. Tavares, Suelene Lima Palmeira, Swamy da Silva Junior, Telêmaco Luiz da Rocha Rodrigues, Thiago Madrini Junior, Vagner Maia da Costa , Veruska Dutra, Walderez

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Data de publicação: 2022-10-11

Resumo: En Pt

This guideline aimed to update the concepts and formulate the standards of conduct and scientific evidence that support them, regarding the diagnosis and treatment of the Cardiomyopathy of Chagas disease, with special emphasis on the rationality base that supported it.nbsp; Chagas disease in the 21st century maintains an epidemiological pattern of endemicity in 21 Latin American countries. Researchers and managers from endemic and non-endemic countries point to the need to adopt comprehensive public health policies to effectively control the interhuman transmission of T. cruzi infection, and to obtain an optimized level of care for already infected individuals, focusing on diagnostic and therapeutic opportunistic opportunities. nbsp; Pathogenic and pathophysiological mechanisms of the Cardiomyopathy of Chagas disease were revisited after in-depth updating and the notion that necrosis and fibrosis are stimulated by tissue parasitic persistence and adverse immune reaction, as fundamental mechanisms, assisted by autonomic and microvascular disorders, was well established. Some of them have recently formed potential targets of therapies.nbsp; The natural history of the acute and chronic phases was reviewed, with enhancement for oral transmission, indeterminate form and chronic syndromes. Recent meta-analyses of observational studies have estimated the risk of evolution from acute and indeterminate forms and mortality after chronic cardiomyopathy. Therapeutic approaches applicable to individuals with Indeterminate form of Chagas disease were specifically addressed. All methods to detect structural and/or functional alterations with various cardiac imaging techniques were also reviewed, with recommendations for use in various clinical scenarios. Mortality risk stratification based on the Rassi score, with recent studies of its application, was complemented by methods that detect myocardial fibrosis.nbsp; The current methodology for etiological diagnosis and the consequent implications of trypanonomic treatment deserved a comprehensive and in-depth approach. Also the treatment of patients at risk or with heart failure, arrhythmias and thromboembolic events, based on pharmacological and complementary resources, received special attention. Additional chapters supported the conducts applicable to several special contexts, including t. cruzi/HIV co-infection, risk during surgeries, in pregnant women, in the reactivation of infection after heart transplantation, and others.nbsp; nbsp;nbsp; Finally, two chapters of great social significance, addressing the structuring of specialized services to care for individuals with the Cardiomyopathy of Chagas disease, and reviewing the concepts of severe heart disease and its medical-labor implications completed this guideline.

Esta diretriz teve como objetivo principal atualizar os conceitos e formular as normas de conduta e evidências científicas que as suportam, quanto ao diagnóstico e tratamento da CDC, com especial ênfase na base de racionalidade que a embasou. A DC no século XXI mantém padrão epidemiológico de endemicidade em 21 países da América Latina. Investigadores e gestores de países endêmicos e não endêmicos indigitam a necessidade de se adotarem políticas abrangentes, de saúde pública, para controle eficaz da transmissão inter-humanos da infecção pelo T. cruzi, e obter-se nível otimizado de atendimento aos indivíduos já infectados, com foco em oportunização diagnóstica e terapêutica. Mecanismos patogênicos e fisiopatológicos da CDC foram revisitados após atualização aprofundada e ficou bem consolidada a noção de que necrose e fibrose sejam estimuladas pela persistência parasitária tissular e reação imune adversa, como mecanismos fundamentais, coadjuvados por distúrbios autonômicos e microvasculares. Alguns deles recentemente constituíram alvos potenciais de terapêuticas. A história natural das fases aguda e crônica foi revista, com realce para a transmissão oral, a forma indeterminada e as síndromes crônicas. Metanálises recentes de estudos observacionais estimaram o risco de evolução a partir das formas aguda e indeterminada e de mortalidade após instalação da cardiomiopatia crônica. Condutas terapêuticas aplicáveis aos indivíduos com a FIDC foram abordadas especificamente. Todos os métodos para detectar alterações estruturais e/ou funcionais com variadas técnicas de imageamento cardíaco também foram revisados, com recomendações de uso nos vários cenários clínicos. Estratificação de risco de mortalidade fundamentada no escore de Rassi, com estudos recentes de sua aplicação, foi complementada por métodos que detectam fibrose miocárdica. A metodologia atual para diagnóstico etiológico e as consequentes implicações do tratamento tripanossomicida mereceram enfoque abrangente e aprofundado. Também o tratamento de pacientes em risco ou com insuficiência cardíaca, arritmias e eventos tromboembólicos, baseado em recursos farmacológicos e complementares, recebeu especial atenção. Capítulos suplementares subsidiaram as condutas aplicáveis a diversos contextos especiais, entre eles o da co-infecção por T. cruzi/HIV, risco durante cirurgias, em grávidas, na reativação da infecção após transplante cardíacos, e outros.nbsp;nbsp;nbsp; Por fim, dois capítulos de grande significado social, abordando a estruturação de serviços especializados para atendimento aos indivíduos com a CDC, e revisando os conceitos de cardiopatia grave e suas implicações médico-trabalhistas completaram esta diretriz.nbsp;

https://doi.org/10.1590/SciELOPreprints.4820

10.

Benzophenone Derivatives Showed Dual Anti-Inflammatory and Antiproliferative Activities by Inhibiting COX Enzymes and Promote Cyclin E Downregulation
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Folquitto, Laís R. S.

; Souza, Thiago B. de

; Januario, Jaqueline P.

; Nascimento, Isadora M.

; Brandão, Brenda T. V.

; Moreira, Maria E. C.

; Horvath, Renato O.

; Santos, Marcelo H.

; Coelho, Luiz F. L.

; Veloso, Marcia P.

; Soares, Marisi G.

; Carvalho, Diogo T.

; Ionta, Marisa

; Chagas-Paula, Daniela A.

; Dias, Danielle F.

Journal of the Brazilian Chemical Society

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Abr 2022, Volume 33 Nº 4 Páginas 348 - 360

Resumo: En | Texto: En | PDF: En

Considering the promising antitumor effects of compounds with dual anti-inflammatory and antiproliferative activities, thus benzophenones analogs (2-7) were evaluated on in vivo anti-inflammatory assay and molecular docking analysis. Those with the best molecular docking results were in vitro evaluated on cyclooxygenase (COX) enzymes and tested regarding antiproliferative activity. All derivatives displayed in vivo anti-inflammatory activity. Among them, the substances 2’-hydroxy-4’-benzoylphenyl-β-D-glucopyranoside (4), 4-hydroxy-4’-methoxybenzophenone (5) and 4’-(4’’-methoxybenzoyl)phenyl-β-D-glucopyranoside (7) showed the best values of Glide Score in COX-2 docking evaluation and 4 and 5 selectively inhibited COX-2 and COX-1 in vitro enzymatic assay, respectively. Thus, 4 and 5 were tested against breast cancer (MCF-7, MDA MB-231, Hs578T) and non-small-cell-lung cancer (A549) cell lines. The estrogen-positive MCF-7 cell line was more responsive compared to other tested cell lines. They induced cell cycle arrest at G1/S transition in MCF-7 cell line once there was an increase in G0/G1 population with concomitant reduction of S population. The antiproliferative activity of these substances on MCF-7 was associated with their ability to inhibit cyclin E expression, a critical regulator of G1/S transition. Taken together, the data indicate that 4 and 5 have dual anti-inflammatory and antiproliferative activities and support further studies to evaluate their antitumor potential.

https://doi.org/10.21577/0103-5053.20210154

11.

Cascade Modeling of the Measuring System Used to Assess S-Parameters of Anchor Rods on Power Transmission Lines Guyed Towers
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Tarragô, V. L.

; Melo, M. T. de

; Novo, Lauro R. G. S. Lourenço

; Barbosa, Douglas C. P.

; Coutinho, Marcelo. S.

; de Medeiros, Luiz H. A.

; Alves, Marcelo M.

; dos Santos, Renan G. M.

; Lott Neto, Henrique B. D. T.

; Gama, Paulo H. R. P.

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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Mar 2022, Volume 21 Nº 1 Páginas 35 - 47

Resumo: En | Texto: En | PDF: En

Abstract The structural condition of the cable-stayed towers anchorage on power transmission lines requires constant monitoring. Maintenance routines must be able to identify faulty anchor rods and substitute them to avoid tower collapses and power delivery interruptions. Modern statistical diagnostic systems based on machine learning requires the generation of several distinct rod sample signals to be trained, which is a time-consuming process in typical electromagnetic solvers. Aiming to generate samples in a feasible time span, this paper presents a modeling strategy based on the cascade analysis of the transmission line composed by the anchor and the reference rods, interconnected by a dedicated high-frequency connector. Each distinct transmission line part is modeled by a quadrupole as a partial ABCD matrix. The complete response for each experimental setup is obtained from the cascaded-multiplying of the partial matrices. The proposed modeling proved to be accurate and provides a faster way to obtain the S-parameters from distinct faulty rods if compared to the traditional methodologies using electromagnetic tools.

https://doi.org/10.1590/2179-10742022v21i1253757

12.

Cestode and nematode larvae of hygienic-sanitary importance parasitizing Balistes capriscus Gmelin, 1789, collected from fish markets of the state of Rio de Janeiro, Brazil
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LEITE, Mayla Monique dos Santos

; KNOFF, Marcelo

; FONSECA, Michelle Cristie Gonçalves da

; FELIZARDO, Nilza Nunes

; GOMES, Delir Corrêa

; SÃO CLEMENTE, Sergio Carmona de

Food Science and Technology

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2022, Volume 42 elocation e81521

Resumo: En | Texto: En | PDF: En

Abstract Balistes capriscus is an appreciated fish species in the state of Rio de Janeiro, Brazil, due its excellent quality flesh. The constant presence of helminth larvae in the abdominal musculature, viscera and serosa of individuals of the species has been the subject of complaints among local fish traders because of economic losses due to their repugnant aspect. Considering their hygienic-sanitary importance and significance for collective health, the presence of helminth larvae was investigated in 44 individual fish of B. capriscus purchased from fish markets in the municipalities of Rio de Janeiro, Niterói, Campos dos Goytacazes and Cabo Frio, state of Rio de Janeiro, in 2017–2018. Cestode larvae, identified as Diphyllobothriidae gen. sp. and Callitetrarhynchus gracilis, were found parasitizing the abdominal cavity, abdominal musculature, mesentery and liver serosa. Nematode (Raphidascaridiidae) third-instar larvae, identified as Hysterothylacium deardorffoverstreetorum and Raphidascaris sp., were found parasitizing stomach, intestine, liver, spleen, liver serosa, mesentery and abdominal cavity. The highest parasitic indices were for Raphidascaris sp., with prevalence of 70.45%, mean intensity of 15.61, mean abundance of 11 and infection range of 1–76 specimens per host. Considerations of the zoonotic potential and hygienic-sanitary significance of these helminths are presented to increase food safety for consumers.

https://doi.org/10.1590/fst.81521

13.

Occurrence of tick-borne pathogens in dogs in a coastal region of the state of Ceará, northeastern Brazil
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Fonsêca, Arícia Débora Vasconcelos

; Oliveira, Lorena Mayana Beserra de

; Jorge, Felipe Rodrigues

; Cavalcante, Ramuelly Olinda

; Bevilaqua, Claudia Maria Leal

; Pinto, Francisco José Maia

; Santos, Jessica Maria Leite dos

; Teixeira, Bruno Marques

; Rodrigues, Ana Kétylla Ponte Prado

; Braz, Gissandra Farias

; Viana, Geysa Almeida

; Costa, Edmara Chaves

; Serpa, Maria Carolina de Azevedo

; Weck, Bárbara Conte

; Labruna, Marcelo Bahia

Revista Brasileira de Parasitologia Veterinária

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2022, Volume 31 Nº 1 elocation e021321

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O objetivo deste estudo foi determinar a ocorrência de patógenos transmitidos por carrapatos (Ehrlichia canis, Babesia vogeli, Hepatozoon spp. e Rickettsia spp.) em cães na Vila de Jericoacoara, região costeira do Ceará, Brasil. Amostras de sangue foram coletadas de 153 animais e analisadas por métodos moleculares e sorológicos. Sessenta animais foram encontrados infectados ou expostos a pelo menos a um dos patógenos estudados. Babesia vogeli foi o patógeno mais prevalente (15%), seguido por E. canis (13,7%) e Hepatozoon spp. (11,8%), que foi identificado como Hepatozoon canis por sequenciamento. Vinte cães (13%) foram sororreativos à Rickettsia spp. Rhipicephalus sanguineus sensu lato foi observado em 11,8% dos animais. Houve associações entre idade (<3 anos) e positividade para B. vogeli, e entre habitação (cães de rua) e positividade para H. canis. Também houve associações entre anemia e infecção por H. canis, e entre leucopenia e exposição a Rickettsia spp. Não foi detectada associação entre alterações clínicas e infecção ou exposição aos patógenos estudados. Os resultados confirmaram que patógenos de importância veterinária estão circulando no nordeste do Brasil e mostraram que cães estão expostos a espécies de Rickettsia com potencial zoonótico, indicando a necessidade de medidas de controle do vetor.

Abstract The aim of this study was to determine the occurrence of tick-borne pathogens (Ehrlichia canis, Babesia vogeli, Hepatozoon spp. and Rickettsia spp.) in dogs in Vila de Jericoacoara, coastal region of Ceará, Brazil. Blood samples were collected from 153 animals and analyzed using molecular and serological methods. Sixty animals were found to be infected or exposed to at least one of the pathogens studied. Babesia vogeli was the most prevalent pathogen (15%), followed by E. canis (13.7%) and Hepatozoon spp. (11.8%), which was identified as Hepatozoon canis through sequencing. Twenty dogs (13%) were seroreactive to Rickettsia spp. Rhipicephalus sanguineus sensu lato was observed on 11.8% of the animals. There were associations between age (< 3 years old) and positivity for B. vogeli, and between habitation (stray dogs) and positivity for H. canis. There were also associations between anemia and infection with H. canis, and between leukopenia and exposure to Rickettsia spp. No association was detected between clinical alterations and infection with or exposure to the pathogens studied. The results confirmed that pathogens of veterinary importance are circulating in northeastern Brazil and showed that dogs are exposed to Rickettsia species with zoonotic potential, thus indicating a need for vector control measures.

https://doi.org/10.1590/s1984-29612022010

14.

HOW DO THE DROPLET SPECTRUM UNIFORMITY AND SPRAY VOLUME OF FLAT-FAN NOZZLES INFLUENCE FUNGICIDE SPRAY DISTRIBUTION QUALITY IN SOYBEANS?
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Griesang, Fabiano

; Ferreira, Marcelo da C.

; Spadoni, Ana B. D.

; Della Vechia, Jaqueline F.

; Santos, Renata T. da S.

; dos Santos, Cícero A. M.

Engenharia Agrícola

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2022, Volume 42 Nº 2 elocation e20210122

Resumo: En | Texto: En | PDF: En

ABSTRACT Droplet spectrum quality is essential to effectively control crop pests and diseases. This study aimed to characterize the droplet uniformity of the eight most popular flat-fan nozzles used by Brazilian farmers and relate it to their spraying quality. The method consisted of using a laser-diffraction-size analyser to determine droplet-size distribution for three fungicide spray solution compositions and at two flow rates. Our goal was to identify the nozzle models with the highest and lowest Span values for each fungicide spray solution. In the first stage, the results confirmed differences in uniformity and droplet size for both nozzle models and flow rates applied. However, these differences were not the same for both flow rates nor constant for all fungicide spray solution compositions. Through field experiments, we could understand how the combination of flow rate, nozzle model, and spray solution composition provides different results and application efficiencies. Based on our results, we can state that Span has an impact on the number of droplets prone to drift and quality of canopy coverage. Therefore, this droplet-quality parameter should be considered and displayed in nozzle catalogues to improve nozzle selection and sprayer configuration, thus enhancing application quality.

https://doi.org/10.1590/1809-4430-eng.agric.v42n2e20210122/2022

15.

Addition of açai oil during the close-up dry period of Holstein cows improves colostrum quality and immune responses of their calves
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SANTOS, DAIANE S. DOS

; KLAUCK, VANDERLEI

; THEISEN, CLEITON

; BORDIGON, BRUNA

; FARINA, RENAN

; PEREIRA, WANDERSON A.B.

; SOUZA, CARINE F.

; BALDISSERA, MATHEUS D.

; SCHOGOR, ANA LUIZA B.

; VEDOVATTO, MARCELO

; PALMER, ELIZABETH A.

; SILVA, ALEKSANDRO S. DA

Anais da Academia Brasileira de Ciências

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2022, Volume 94 Nº 4 elocation e20201592

Resumo: En | Texto: En | PDF: En

Abstract This study evaluated of the effects of açai oil during the close-up dry period of Holstein cows on colostrum quality, as well as on the immune and antioxidant responses of their calves. Sixteen multiparous cows were assigned randomly to two treatments: 1) CONTROL (n = 8) - 4.48% of soybean oil/concentrate; 2) AÇAI (n =8) - 4.48% of açai oil/concentrate. Cows fed with açai oil had greater (P≤0.04) colostrum concentrations of immunoglobulins (Ig) G (1st and 2nd milking), IgG heavy chains, IgA (only at 1st milking), alpha-lactalbumin (1st milking), total protein, and antioxidant capacity against peroxyl radicals (only at 1st milking). Cows fed with açai oil had greater serum concentrations of globulin (only on the day of calving) and total protein (only on the day of calving) (P = 0.03). Calves born of cows fed with açai oil had greater serum concentrations of total protein (only 24 and 48 h after calving) and serum concentration of IgG heavy chain (only 24 h after calving) and globulin (only 24 and 48 h after calving) (P = 0.01). These data suggest that the addition of açai oil in the cow feed during the close-up dry period boosted immunity in their calves by altering the composition of colostrum.

https://doi.org/10.1590/0001-3765202220201592

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