Search | SciELO

The Barreirinha Formation-Upper Devonian, is the main petroleum source rock of the Amazon Basin, deposited during the great Devonian Transgression, contributing to significant accumulations of organic matter (OM) in anoxic conditions, which allowed its preservation. The present work had the objective of characterizing the molecular composition of biomarkers in outcrops samples of the Barreirinha Formation, aiming to evaluate the paleoenvironment, thermal evolution, and the preservation of OM total organic carbon (TOC) and Rock-Eval pyrolysis indicate considerable amounts of immature OM deposited in a low oxygenation environment. Gas chromatography-mass spectrometry (GC-MS) and gas chromatography-tandem mass spectrometry (GC-MS/MS) data corroborate that the OM was deposited in a suboxic to the oxic environment and low salinity (absence or low relative abundance of β-carotane and gammacerane). 24-N-Propyl-cholestane was detected and identified by synthetic pattern co-injection. High concentrations of tetracyclic polyprenoids (TPPs) in ascending order from base to top, high hopane/sterane ratios, to suggest that the samples had a high molecular weight n-alkanes, C29 steranes, low thermal evolution, and anoxic depositional paleoenvironment.

https://doi.org/10.21577/0103-5053.20210156

Effect of Xylitol Varnishes on the Inhibition of Demineralization in Vitro
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Naves, Paula Andery

; Moura, Alexandre Lima de

; Rodrigues, Marcela Charantola

; Diniz, Michele Baffi

; Arana-Chavez, Victor Ellias

; Jordão, Maísa Camillo

; Cardoso, Cristiane de Almeida Baldini

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 22 elocation e210205

Abstract: En | Text: En | PDF: En

Abstract Objective: To evaluate the efficacy of xylitol varnishes in the inhibition of enamel demineralization in vitro. Material and Methods: Bovine enamel blocks (n=120) were randomly allocated to four groups (n = 30), and the surface hardness (SH) was measured at baseline. The blocks were treated with the following varnishes: 20% xylitol, 20% xylitol plus F (5% NaF), Duraphat™ (5% NaF, positive control), and placebo (no-F/xylitol, negative control). The varnishes were applied and removed after 6 h of immersion in artificial saliva. The blocks were subjected to pH cycles (demineralization and remineralization for 2 and 22h/day, respectively, for 8 days). Surface and cross-sectional hardnesses were measured to calculate the percentage of SH loss (%SHL) and the integrated loss of the subsurface hardness (ΔKHN). Data were statistically analyzed using Kruskal-Wallis and Tukey’s tests (p<0.05). Results: %SHL was significantly decreased by 20% xylitol plus F, Duraphat™, and 20% xylitol varnishes compared to placebo. The use of 20% xylitol plus F varnish led to a significantly lower percentage of SH loss compared to the use of 20% xylitol varnish without F. However, the experimental and commercial varnishes led to significantly lower subsurface demineralization compared to placebo and did not differ from each other. Conclusion: Xylitol varnishes, especially when combined with F, effectively prevent enamel demineralization.

https://doi.org/10.1590/pboci.2022.048

COVID-19 in the Perioperative Period of Cardiovascular Surgery: the Brazilian Experience
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Gomes, Walter J.

; Rocco, Isadora

; Pimentel, Wallace S.

; Pinheiro, Aislan H. B.

; Souza, Paulo M. S.

; Costa, Luiz A. A.

; Teixeira, Marjory M. P.

; Ohashi, Leonardo P.

; Bublitz, Caroline

; Begot, Isis

; Moreira, Rita Simone L

; Hossne Jr, Nelson A.

; Vargas, Guilherme F.

; Branco, João Nelson R.

; Teles, Carlos A.

; Medeiros, Eduardo A. S.

; Sáfadi, Camila

; Rampinelli, Amândio

; Moratelli Neto, Leopoldo

; Rosado, Anderson Rosa

; Mesacasa, Franciele Kuhn

; Capriata, Ismael Escobar

; Segalote, Rodrigo Coelho

; Palmieri, Deborah Louize da Rocha Vianna

; Jardim, Amanda Cristina Mendes

; Vianna, Diego Sarty

; Coutinho, Joaquim Henrique de Souza Aguiar

; Jazbik, João Carlos

; Coutinho, Henrique Madureira da Rocha

; Kikuta, Gustavo

; Almeida, Zely Sant'Anna Marotti de

; Feguri, Gibran Roder

; Lima, Paulo Ruiz Lucio de

; Franco, Anna Carolina

; Borges, Danilo de Cerqueira

; Cruz, Felipe Ramos Honorato De La

; Croti, Ulisses Alexandre

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Goraieb, Lilian

; Postigo, Karolyne Barroca Sanches

; Jucá, Fabiano Gonçalves

; Oliveira, Fátima Rosane de Almeida

; Souza, Rafael Bezerra de

; Zilli, Alexandre Cabral

; Mas, Raul Gaston Sanchez

; Bettiati Junior, Luiz Carlos

; Tranchesi, Ricardo

; Bertini Jr, Ayrton

; Franco, Leandro Vieira

; Fernandes, Priscila

; Oliveira, Fabiana

; Moraes Jr, Roberto

; Araújo, Thiago Cavalcanti Vila Nova de

; Braga, Otávio Penna

; Pedrosa Sobrinho, Antônio Cavalcanti

; Teixeira, Roberta Tavares Barreto

; Camboim, Irla Lavor Lucena

; Gomes, Eduardo Nascimento

; Reis, Pedro Horigushi

; Garcia, Luara Piovan

; Scorsioni, Nelson Henrique Goes

; Lago, Roberto

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

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

Abstract: En | Text: En | PDF: En

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

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

Modelagem matemática e propriedades termodinâmicas na secagem do quiabo
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos*, Francislaine S.

; Figueirêdo, Rossana M. F.

; Queiroz, Alexandre J. M.

; Reis, Carolaine G.

; Amadeu, Lumara T. S.

; Silva, Luis P. F. R.

; Lima, Thalis L. B.

Revista de Ciências Agrárias

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2021, Volume 44 N. 1 Pages 91 - 100

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

RESUMO O quiabo é uma hortaliça que destaca-se agronomicamente por apresentar ciclo vegetativo rápido, de alto rendimento, além de apresentar considerável valor nutritivo. Em razão da sua composição e de ser consumido ainda verde, a sua vida útil é bastante curta, requerendo algum processo de conservação para manter a aceitabilidade. Nesse sentido, objetivou-se secar o quiabo em fatias, com espessura de aproximadamente 2 mm, nas temperaturas de 50, 60, 70 e 80 °C, ajustar modelos matemáticos aos dados experimentais e determinar os coeficientes de difusão, a energia de ativação e as propriedades termodinâmicas. Observou-se que o aumento de temperatura de secagem em 30 °C reduziu em 50,55% o tempo total de processo. Dentre os modelos matemáticos testados, o modelo de Midilli apresentou os melhores parâmetros de ajustes aos dados experimentais. Os coeficientes de difusão efetivos aumentaram com o incremento da temperatura, apresentando-se na ordem de 10-11 m2 s-1, e sua dependência com a temperatura foi descrita pela Equação de Arrhenius, que indicou uma energia de ativação de 26,12 kJ mol-1. Os valores de entalpia e entropia se reduziram com a elevação da temperatura de secagem, enquanto que a energia livre de Gibbs foi aumentada na faixa de temperatura avaliada.

ABSTRACT Okra is a vegetable that stands out agronomically due to its fast vegetative cycle, of high yield, besides presenting considerable nutritional value. Due to its composition and to be consumed still green, its useful life is quite short, requiring some conservation process to maintain acceptability. In this sense, the objective was to dry the okra in slices, approximately 2 mm thick, at temperatures of 50, 60, 70 and 80 ° C, adjust mathematical models to the experimental data and determine the diffusion coefficients, activation energy and thermodynamic properties. It was observed that the increase in drying temperature at 30 ° C reduced the total process time by 50.55%. Among the mathematical models tested, the Midilli model presented the best parameters of adjustments to the experimental data. The effective diffusion coefficients increased with increasing temperature, in the order of 10-11 m2 s-1, and their dependence on temperature was described by the Arrhenius Equation, which indicated an activation energy of 26.12 kJ mol-1. The enthalpy and entropy values decreased with the increase of the drying temperature, while the Gibbs free energy was increased in the temperature range evaluated.

https://doi.org/10.19084/rca.21469 4 downloads

Morph-agronomic characterization of watermelon accessions with resistance to Fusarium Wilt
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

COSTA, ANTONIO ELTON DA SILVA

; CUNHA, FABIO S. DA

; ARAÚJO, KECIA MAYARA G. DE

; LIMA NETO, IZAIAS S.

; CAPUCHO, ALEXANDRE S.

; BOREL, JERÔNIMO C.

; ISHIKAWA, FRANCINE H.

Anais da Academia Brasileira de Ciências

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2021, Volume 93 N. 1 elocation e20191359

Abstract: En | Text: En | PDF: En

Abstract Fifty-five watermelon accessions were inoculated in pots using Fusarium oxysporum f. sp. niveum chlamydospores in a completely randomized design with five replications. Among the 42 accessions that were resistant, twelve accessions with a mean score ≤1 were selected for morpho-agronomic characterization. ‘Sugar Baby’ and ‘Charleston Gray’ were used as controls. Field research was conducted over two production cycles in a randomized block design with three replications and five plants per plot. For the characterization 13 quantitative agronomic traits were used. The dissimilarity measures were obtained by the sum of the matrices of standardized mean Euclidean distance. Coefficients of variation ranged from 5.33% (number of days until 50% of plants with at least one female flower) and 17.20% (mass of characterized fruit). In the second cycle, a reduction in days was observed for the flowering. For soluble solids content, the accession BGH-UNIVASF 40 was statistically equal to the commercial cultivars in the second cycle. Accessions were grouped similarly using two grouping methods, Tocher and the farthest neighbor method. The most promising accessions were BGH-UNIVASF 40, 169, 177 and 210 for use in future hybridizations. BGH-UNIVASF 76, 128 and 185 (Citrullus lanatus var. citroides) can be used as resistant Fusarium wilt rootstocks.

https://doi.org/10.1590/0001-3765202120191359 431 downloads

Citrus limon (L.) Burm f. Essential Oil Has Anxiolytic and Sedative Properties by Modulating GABAA-Receptors
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Viana, Max Denisson Mauricio

; Silva Neto, Geraldo Jose da

; Lima, Alyne Almeida de

; Leite, Anderson Brandão

; Souza, Isis Torres

; Santana, Antônio Euzébio Goulart

; Campesatto, Eliane Aparecida

; Moreira, Magna Suzana Alexandre

Brazilian Archives of Biology and Technology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2020, Volume 63 elocation e20200206

Abstract: En | Text: En | PDF: En

Abstract The high prevalence of anxiety disorders associated with pharmacotherapy side effects have motivated the search for new pharmacological agents. Species from Citrus genus, such as Citrus limon (sicilian lemon), have been used in folk medicine as a potential therapy to minimize emotional disorders. In order to searching for new effective treatments with fewer side effects, the present study evaluated the anxiolytic mechanism of action and the hypnotic-sedative activity from the Citrus limon fruit's peels essential oil (CLEO). Adults male Swiss mice were submitted to barbiturate-induced sleep test; elevated plus-maze (EPM) and light-dark box (LDB) (evaluation of the mechanism of action); rotarod; and catalepsy tests. CLEO oral treatment decreased latency and increased the sleep total time; moreover it induced in animals an increased the number of entries and percentage of time spent into open arms of the EPM; an increased the number of transitions and the percentage of time into light compartment in the LDB; which were only antagonized by flumazenil pretreatment, with no injury at motor function. Thus, results suggest that CLEO treatment induced an anxiolytic behavior suggestively modulated by the benzodiazepine binding site of the GABAA receptor or by an increase of GABAergic neurotransmission, without cause impairment in the motor coordination.

https://doi.org/10.1590/1678-4324-2020200206 821 downloads

PAPAYA SEEDLING PRODUCTION UNDER DIFFERENT SHADING LEVELS AND SUBSTRATE COMPOSITIONS
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Salles, Josiane S.

; Lima, Alexandre H. F. de

; Costa, Edilson

; Binotti, Eliana D. C.

; Binotti, Flávio F. da S.

Engenharia Agrícola

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2019, Volume 39 N. 6 Pages 698 - 706

Abstract: En | Text: En | PDF: En

ABSTRACT Papaya is characterized as one of the most important crops in Brazil. Thus, good quality seedlings are essential for formation of orchards in agricultural production. This study aimed to evaluate shading levels and substrate compositions for production of papaya seedlings. Growing environments were evaluated with 0, 18, 35, and 50% shading and substrates from combinations (%) of hillside soil (HS), cattle manure (CM), Bioplant® (BP), washed fine sand (FS), and super fine-grained vermiculite (FV). As there was no replication for the growing environments, the group of experiments were analyzed using a 4 × 4 factorial arrangement (4 shades × 4 substrates), with five replications. Growth and biometric relationships were analyzed. Substrates consisting of 30% HS + 15% CM + 20% BP + 20% FS + 15% FV and 45% HS + 0% CM + 20% BP + 20% FS + 15% FV, as well as environments with 18 and 35% shading formed seedlings with higher plant heights, diameters, phytomass, and Dickson quality indices. The results showed that substrates with a higher content of hillside soil and lower content of cattle manure, associated with an environment with 18 or 35% shading, provided high-quality seedlings.

https://doi.org/10.1590/1809-4430-eng.agric.v39n6p698-706/2019 652 downloads

Second brazilian consensus on the treatment of advanced prostate cancer: a SBOC-SBU-SBRT panel review
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Sasse, Andre Deeke

; Reis, Rodolfo Borges dos

; Nogueira, Lucas Mendes

; Maluf, Fernando Cotait

; Herchenhorn, Daniel

; Smaletz, Oren

; Lima, Volney Soares

; Schutz, Fábio

; Bastos, Diogo

; Wiermann, Evanius Garcia

; Morbeck, Igor Alexandre Protzner

; Jardim, Leonardo Fontes

; Souza, Vinicius Carrera

; Carvalho, Icaro Thiago

; Leite, Elton Trigo Teixeira

; Nardozza Jr., Archimedes

; Pompeo, Antonio Carlos Lima

; Bretas, Francisco

; Leal, Marcos Lima de Oliveira

; Sadi, Marcus Vinicius

; Ponte, José Ricardo Tuma da

; Carvalhal, Gustavo F.

International braz j urol

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2019, Volume 45 N. 3 Pages 449 - 458

Abstract: En | Text: En | PDF: En

ABSTRACT Prostate cancer is the second most common cancer and the fifth leading cause of cancer deaths. In Brazil, it is likewise the second most common cancer among men, second only to non-melanoma skin cancers. The aim of this consensus is to align different opinions and interpretations of the medical literature in a practical and patient-oriented approach. The first Brazilian Consensus on the Treatment of Advanced Prostate Cancer was published in 2017, with the goal of reducing the heterogeneity of therapeutic conduct in Brazilian patients with metastatic prostate cancer. We acknowledge that in Brazil the incorporation of different technologies is a big challenge, especially in the Sistema Único de Saúde (SUS), which allows for the disparity in the options available to patients treated in different institutions. In order to update the recommendations and to make them objective and easily accessible, once more a panel of specialists was formed in order to discuss and elaborate a new Brazilian Consensus on Advanced Prostate Cancer. This Consensus was written through a joint initiative of the Brazilian Society of Clinical Oncology (SBOC) and the Brazilian Society of Urology (SBU) to support the clinical decisions of physicians and other health professionals involved in the care of patients with prostate cancer.

https://doi.org/10.1590/s1677-5538.ibju.2018.0798 885 downloads

Sulfamethoxazole sorption in eutrophic Regolithic Neosol
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Barros, Márcia A. M. F. de

; Antonino, Antônio C. D.

; Schuler, Alexandre R. P.

; Lima, José R. de S.

; Gondim, Manuella V. S.

; Lima, Valmir F. de

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jul 2018, Volume 22 N. 7 Pages 506 - 510

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

RESUMO Objetivou-se neste estudo avaliar a sorção do sulfametoxazol, onde a cinética e as isotermas de sorção foram determinadas em duas camadas de solo Neossolo Regolítico Eutrófico típico (camadas 0-20 e 20-60 cm) da reserva particular da fazenda Riacho do Papagaio, São João, PE. Os ensaios foram realizados em laboratório a 24 ºC, pelo método “batch”, e a concentração de sulfametoxazol determinada por cromatografia líquida de alta eficiência. Nos ensaios de cinética de sorção foi utilizada solução de sulfametoxazol na concentração de 10-4 mol L-1, enquanto para as isotermas de sorção foram utilizadas soluções nas concentrações de 10-3, 5.10-4, 10-4, 5.10-5, 10-5 e 5.10-6 mol L-1. Para esse solo, as cinéticas de sorção do sulfametoxazol foram melhor descritas com um modelo de segunda ordem e as isotermas de sorção foram lineares. Para este tipo de solo, a interação do sulfametoxazol é predominantemente com a matéria orgânica, apresentando baixa adsorção, evidenciando um maior risco de contaminação das águas subterrâneas existentes nessa região em pH ≈ 7.

ABSTRACT This study aimed to evaluate sulfamethoxazole sorption kinetics and isotherms using batch method. The experiment was carried out in typic eutrophic Regolithic Neosol (0-20 and 20-60 cm layers) located in the private reserve of the Riacho do Papagaio farm, in São João, PE, Brazil. The tests were carried out under laboratory conditions at 24 ºC and sulfamethoxazole concentration was determined by high-performance liquid chromatography. The sorption experiment through the batch method used sulfamethoxazole solutions with concentrations of 10-3, 5.10-4, 10-4, 5.10-5, 10-5 and 5.10-6 mol L-1 to obtain the analytical curve. For this soil, sulfamethoxazole sorption kinetics was best described by a second-order model and the sorption isotherms were linear. Sulfamethoxazole predominantly interacts with organic matter in this type of soil. The results obtained in this study show that the antibiotic sulfamethoxazole exhibits low adsorption, posing a higher risk of contamination to the groundwaters in this region at pH ≈ 7.

https://doi.org/10.1590/1807-1929/agriambi.v22n7p506-510 580 downloads

10.

Brazilian legislation on genetic heritage harms Biodiversity Convention goals and threatens basic biology research and education
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

ALVES, RUY JOSÉ V.

; WEKSLER, MARCELO

; OLIVEIRA, JOÃO A.

; BUCKUP, PAULO A.

; POMBAL JR., JOSÉ P.

; SANTANA, HÉLCIO R.G.

; PERACCHI, ADRIANO LÚCIO

; KELLNER, ALEXANDER W.A.

; ALEIXO, ALEXANDRE

; LANGGUTH, ALFREDO

; ALMEIDA, ALZIRA MARIA P. DE

; ALBERNAZ, ANA LUISA

; RIBAS, CAMILA C.

; ZILBERBERG, CARLA

; GRELLE, CARLOS EDUARDO V.

; ROCHA, CARLOS F.D.

; LAMAS, CARLOS JOSÉ E.

; HADDAD, CÉLIO F.B.

; BONVICINO, CIBELE R.

; PRADO, CYNTHIA P.A.

; LIMA, DANIELA O. DE

; ROSSA-FERES, DENISE C.

; SANTOS, FABRÍCIO R. DOS

; SALIMENA, FÁTIMA REGINA G.

; PERINI, FERNANDO A.

; BOCKMANN, FLÁVIO A.

; FRANCO, FRANCISCO LUÍS

; GIUDICE, GISELE M.L. DEL

; COLLI, GUARINO R.

; VIEIRA, IMA CÉLIA G.

; MARINHO-FILHO, JADER

; WERNECK, JANE M.C.F.

; SANTOS, JORGE A.D. DOS

; NASCIMENTO, JORGE LUIZ DO

; NESSIMIAN, JORGE LUIZ

; CORDEIRO, JOSÉ LUIS P.

; CLARO, KLEBER DEL

; SALLES, LEANDRO O.

; CASATTI, LILIAN

; PY-DANIEL, LUCIA HELENA R.

; SILVEIRA, LUÍS FÁBIO

; TOLEDO, LUÍS FELIPE

; OLIVEIRA, LUIZ F. DE

; MALABARBA, LUIZ ROBERTO

; SILVA, MARCELO D. DA

; COURI, MÁRCIA S.

; MARTINS, MÁRCIO

; TAVARES, MARCOS D.S.

; SOBRAL, MARCOS EDUARDO G.

; VIEIRA, MARCUS VINÍCIUS

; OLIVEIRA, MARIA DE LOURDES A.

; PINNA, MÁRIO DE

; HOPKINS, MICHAEL J.G.

; SOLÉ, MIRCO

; MENEZES, NAÉRCIO A.

; PASSOS, PAULO

; D’ANDREA, PAULO SERGIO

; PINTO, PEDRO C.E.A.

; VIANA, PEDRO L.

; TOLEDO, PETER M.

; REIS, ROBERTO E.

; VILELA, ROBERTO

; BASTOS, ROGÉRIO P.

; COLLEVATTI, ROSANE G.

; CERQUEIRA, RUI

; CASTROVIEJO-FISHER, SANTIAGO

; CARAMASCHI, ULISSES

Anais da Academia Brasileira de Ciências

Journal Metrics
- Sobre o periódico
- SciELO Analytics

apr 2018, Volume 90 N. 2 Pages 1279 - 1284

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0001-3765201820180460 7311 downloads

11.

Growth, water use and efficiency of forage cactus sorghum intercropping under different water depths
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Lima, Lucivania R.

; Silva, Thieres G. F. da

; Jardim, Alexandre M. da R. F.

; Souza, Carlos A. A. de

; Queiroz, Maria G. de

; Tabosa, José N.

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

feb 2018, Volume 22 N. 2 Pages 113 - 118

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

RESUMO Os efeitos da configuração palma-sorgo e de diferentes lâminas de irrigação sobre o crescimento, consumo de água e eficiência do sistema de produção da palma foram investigados neste estudo. O experimento foi conduzido em Serra Talhada, PE, entre os anos de 2012 e 2013, com a palma disposta em blocos ao acaso, quatro repetições, em parcelas subdivididas (5 x 2) de cinco lâminas (0, 8,75, 17,5, 26,25 e 35% da evapotranspiração de referência) e dois sistemas de cultivo (palma exclusiva e consórcio palma-sorgo). A evapotranspiração real da cultura foi calculada por meio do balanço de água no solo. Estimou-se a razão evapotranspiração real e de referência, além das eficiências do uso da água e da terra. As lâminas de irrigação e a adoção do consórcio afetaram apenas a largura do dossel e a biomassa dos cladódios da palma forrageira. A razão evapotranspiração real e de referência aumentou com o incremento da lâmina de irrigação, enquanto as maiores eficiências do uso da água com base na massa seca ocorreram nas lâminas de água superiores a 1.096 mm ano-1 no consórcio (21,8 ± 6,8 kg ha-1 mm-1). As lâminas de irrigação não afetaram a eficiência do uso da terra (0,83). No sistema palma-sorgo, recomendam-se lâminas de água entre 1.096 e 1.202 mm ano-1.

ABSTRACT The effects of the forage cactus sorghum configuration and different irrigation depths on the growth, water use and efficiency of the forage cactus production system were investigated in this study. The experiment was conducted in the municipality of Serra Talhada, Pernambuco State, Brazil, between the years 2012 and 2013. Forage cactus was distributed in randomized blocks with factorial scheme and four replicates, in split plots (5 x 2), with five irrigation depths (0, 8.75, 17.5, 26.25 and 35% of the reference evapotranspiration, ET0) and two cropping systems (forage cactus monocropping and forage cactus sorghum intercropping). Crop evapotranspiration was calculated through soil water balance. The ratio between crop and reference evapotranspiration, and land use and water use efficiencies, were estimated. Irrigation depths and the intercropping affected only forage cactus canopy width and cladode biomass. The ratio between crop and reference evapotranspiration increased with the increase of irrigation depths, while the highest water use efficiency based on dry matter occurred at irrigation depths higher than 1,096 mm year-1 in the intercropping (21.8 ± 6.8 kg ha-1 mm-1). Irrigation depths did not affect land use efficiency (0.83). Water depths from 1,096 to 1,202 mm year-1 are recommended in the forage cactus sorghum system.

https://doi.org/10.1590/1807-1929/agriambi.v22n2p113-118 1321 downloads

12.

Estimation, morphometry and ultrastructure of ovarian preantral follicle population in agouti (Dasyprocta leporina)
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos, Erica A.A.

; Lima, Gabriela L.

; Praxedes, Erica C.G.

; Silva, Andréia M.

; Maia, Keilla M.

; Oliveira, Moacir F.

; Rodrigues, Ana Paula R.

; Silva, Alexandre R

Pesquisa Veterinária Brasileira

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jan 2018, Volume 38 N. 1 Pages 175 - 182

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

RESUMO: O objetivo deste trabalho foi caracterizar a população folicular ovariana pré-antral em cutias (D. leporina) estimando o número de folículos em cada categoria de desenvolvimento, e também descrever a morfometria e as características específicas do folículo e oócito usando microscopia de luz e eletrônica de transmissão. O comprimento de cada ovário foi medido utilizando um paquímetro, seccionados longitudinalmente em duas metades e ambos foram imediatamente fixados para realizar a estimativa da população folicular e análise ultraestrutural. A média (±S.E.M.) da população folicular por par de ovário foi estimada em 4419,8±532,26 e 5397,52±574,91 nos ovários direito e esquerdo, respectivamente, mas não foram observadas diferenças entre eles. Os diâmetros dos folículos, oócito e núcleos, respectivamente, foram: 18,62±3,40μm, 12,28±2.37μm e 6,10±0,93μm para primordial, 23,75±5,70μm, 14,22±3,00μm e 6,70±1,24μm para primário e 88,55±17,61μm, 52,85±17,56μm e 22,33±17,61μm de folículos secundários. A maioria dos folículos encontrados pertencia à categoria primordial (86,63%), seguido pelo primário (13,01%) e um secundário (0,35%). Adicionalmente, os folículos poliovulares foram observados em todos os animais e representavam 7,51% do total de folículos contados. A análise ultra-estrutural mostrou que o oócito apresentou núcleos centrais e regulares, exibindo uma massa homogênea. Dentre as organelas, as mitocôndrias foram as mais abundantes e o aparelho de Golgi do oócito foi raramente observado. Em conclusão, este trabalho mostra pela primeira vez a caracterização da população de folículos pré-antrais do ovário da Dasyprocta leporina. Essas informações serão úteis para o desenvolvimento e adaptação de biotécnicas, como a criopreservação de germoplasma e manipulação de gametas in vitro.

ABSTRACT: The aim of this study was to characterize the preantral ovarian follicular population in agoutis (D. leporina) by estimating the number of follicles at each developmental category, and also describe the morphometry and the specific features of the follicle and the oocyte by using light and transmission electron microscopy. The length of each ovary was measured using a caliper rule, longitudinally sectioned into two halves and both were immediately fixed to perform the estimation of follicular population and ultrastructural analysis. The mean (±S.E.M.) population of follicular per pair of ovary was estimated at 4419.8±532.26 and 5397.52±574.91 for right and left ovaries, respectively, but no differences were observed between them. The diameters for follicles, oocyte and nuclei were: 18.62±3.40μm, 12.28±2.37μm and 6.10±0.93μm for primordial, 23.75±5.70μm, 14.22±3.00μm and 6.70±1.24μm for primary and 88.55±17.61μm, 52.85±17.56μm and 22.33±17.61μm for secondary follicles, respectively. The most of the follicles found belonged to the primordial category (86.63%), followed by primary (13.01%) and secondary (0.35%) one. Additionally, polyovular follicles were observed in all the animals and they represented 7.51% of the total follicles counted. The ultrastructural analysis showed that the oocyte presented a central and regular nuclei, displaying a homogenous mass. Among the organelles, the mitochondria were the most abundant and the oocyte Golgi apparatus was rarely observed. In conclusion, this work shows for the first time the characterization of the population of preantral follicles in the ovary of Dasyprocta leporina. Those information will be useful for further development and adaptation of biotechniques such as germplasm cryopreservation and in vitro gametes manipulation.

https://doi.org/10.1590/1678-5150-pvb-4946 1217 downloads

13.

The Antinociceptive Effect of the Leaves and Flowers Ethanolic Extracts of Tabebuia aurea (Silva Manso) Benth & Hook. F. ex S. Moore
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Suellen Maria Albuquerque da

; Silva Neto, Geraldo José da

; Nascimento, Ivenis Raphael Cavalcante do

; Viana, Max Denisson Maurício

; Lima, Alyne Almeida de

; Bezerra, Pedro Henrique Simões

; Bastos, Maria Lysete de Assis

; Moreira, Magna Suzana Alexandre

; Campesatto, Eliane Aparecida

Brazilian Archives of Biology and Technology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2018, Volume 61 elocation e18180367

Abstract: En | Text: En | PDF: En

ABSTRACT In view of the traditional use of Tabebuia aurea for treating pain and inflammation, the antinociceptive pharmacological potential of T. aurea ethanolic extracts (TAEE) was investigated through in vivo experimental models. First, the MTT assay was conducted to determine the potential cytotoxicity of the TAEEs. Afterwards, the acetic acid-induced writhing test and the formalin-, and glutamate-induced nociception tests were performed on Swiss adult mice treated with TAEEs (100 and 200 mg/kg doses, p.o.), or saline solution (control groups, 10mL/kg, p.o.), or standard drugs: dipyrone 40 mg/kg (p.o.), and morphine 5,7 mg/kg (i.p). In the MTT assay, none of the tested concentrations demonstrated signals of cytotoxicity. In the in vivo experimental models of acetic acid-induced writhing and glutamate-induced nociception, all TAEEs doses were able to statistically reduce the nociceptive response. However, the TAEEs did not show significant decrease in the amount of time that the animals spent licking the stimulated paw in the neurogenic phase of formalin-induced nociception test, differently of what was observed in the inflammatory phase. The results showed that T. aurea species induce an antinociceptive effect in rodents, which encourages the study of new drugs and contributes to the research on natural products.

https://doi.org/10.1590/1678-4324-2018180367 2834 downloads

14.

Drying and characterization of myrtle pulp
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Feitosa, Regilane M.

; Figueirêdo, Rossana M. F. de

; Queiroz, Alexandre J. de M.

; Lima, Flávia C. dos S.

; Oliveira, Emanuel N. A. de

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2017, Volume 21 N. 12 Pages 858 - 864

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

RESUMO Neste trabalho objetivou-se desenvolver formulações de polpa de murta adicionada de emulsificante/estabilizante (Emustab® e Super Liga Neutra®) em proporções diferentes; caracterizar a melhor espuma, com base na densidade e over-run; e determinar as cinéticas de secagem nas temperaturas de 50, 60, 70, 80 e 90 oC e nas espessuras 0,5, 1,0 e 1,5 cm. A incorporação de 1,5% de Emustab® e 0,5% Super liga Neutra® à polpa de murta (F1) mostrou-se eficaz para a secagem em camada de espuma. A adição de aditivos influenciou nos parâmetros físico-químicos da polpa de murta integral. O modelo de Midilli et al. se destacou como o melhor ajuste aos dados experimentais.

ABSTRACT The objective of this study was to develop formulations of myrtle pulp with emulsifier/stabilizer (Emustab® and Super Liga Neutra®) in different proportions; characterize the best foam, based on density and over-run; and determine drying kinetics at temperatures of 50, 60, 70, 80 and 90 oC and thicknesses of 0.5, 1.0 and 1.5 cm. Incorporation of 1.5% Emustab® and 0.5% Super Liga Neutra® to the myrtle pulp (F1) proved to be effective for foam-mat drying. The addition of additives influenced the physicochemical parameters of the whole myrtle pulp. The Midilli et al. model showed the best fit to the experimental data.

https://doi.org/10.1590/1807-1929/agriambi.v21n12p858-864 950 downloads

15.

Cessation of dangerousness status: an analysis of 224 reports from the Instituto de Perícias Heitor Carrilho, Rio de Janeiro, Brazil
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Oliveira, Gustavo C.

; Valença, Alexandre M.

; de Moraes, Talvane M.

; Mendlowicz, Mauro V.

; Forrest, Miles C.

; Batista, Fred F.

; Mendes, Gabriella A.

; Lima, Tiago N.

; Gonçalves, Vinicius R.

; Mecler, Kátia

Brazilian Journal of Psychiatry

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2017, Volume 39 N. 1 Pages 45 - 54

Abstract: En | Text: En | PDF: En

Objectives: To evaluate factors related to dangerousness cessation at the end of involuntary commitment based on an analysis of expert reports. In light of the current legal requirement of dangerousness cessation as a pre-requisite for prison or internment release of individuals subjected to the safety measure, we sought elements to reflect on the practice of expert examiners in charge of making this decision. Methods: The authors revised 224 expert psychiatric dangerousness cessation reports released 2011 through 2014 and collected data for a statistical analysis. Results: The following variables were associated with positive risk cessation assessments: no inadequate behavior (according to the assistant professionals), no productive psychotic symptoms, no negative symptoms, presence of insight, presence of a support network, and no psychoactive substance abuse. The following variables were associated with negative dangerousness cessation decisions: early onset of malfunction, lack of insight, negative attitudes, active signs of major mental illness, presence of impulsiveness, poor response to treatment, presence of plans lacking feasibility, exposure to destabilizing factors, lack of personal support, and presence of stress. Conclusions: In this study we were able to identify factors associated with dangerousness in a sample of expert reports. The knowledge of factors linked to a higher risk of recidivism in illegal activities or violent behavior is crucial for decision-making regarding the release of offenders after their legally established period of involuntary commitment.

https://doi.org/10.1590/1516-4446-2015-1871 1355 downloads

Showing

itens per page

Page of 4 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

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

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

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

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

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

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

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

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