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1.
THERMAL EXCHANGES IN A COVERED LAGOON BIODIGESTER TREATING PIG FARM EFFLUENT HEATED BY SOLAR ENERGY
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Maradini, Priscila da S.
; Rosa, André P.
; Lopes, Juciara O.
; Carlo, Joyce C.
; Borges, Alisson C.
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ABSTRACT Covered lagoon biodigesters are widely used in Brazil for treatment of agro-industrial effluents; however, under natural conditions, they operate at temperatures below the ideal. Thus, external sources for heating the effluent can enhance reactor performance and optimize thermal exchanges between the biodigester and the environment. This study aimed to evaluate the thermal exchanges in the internal and external environments of a covered lagoon biodigester from the influence of effluent heating through solar energy. Mathematical modeling (EnergyPlus software) was used as a tool to simulate thermal exchanges and obtain heat transfer rates. To do so, two scenarios were considered: with and without heated effluent. The results showed that solar radiation is the primary source of heating for anaerobic reactors and that the high thermal inertia of the soil contributes to a small variation in temperature of the resident biomass over the course of the day, even in the scenario with heated effluent. The temperature of the resident biomass reached and stabilized at 30°C, even after thermal exchanges with biogas and soil, in both hot and cold periods when heating was applied.
2.
A newly validated HPLC–DAD-UV method to study the effects of medicinal plants extracts, fractions and isolate compounds on gastric emptying in rodents
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Siqueira, Monica R.P.
; Rosa, Lorenna C. da
; Santos, Rafael de O.
; Lopes, Marina Priscila G. da S.
; Paumgartten, Francisco J.R.
; Moreira, Davyson de Lima
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Revista Brasileira de Farmacognosia
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Abstract In this study, we developed and validated a chromatographic method by High-performance Liquid Chromatography coupled to Diode-Array Ultraviolet Detector for quantification of acetaminophen in small volumes of plasma. This analytical method is particularly suitable for studies of gastric emptying time and pharmacokinetics in small rodents. Orally administered acetaminophen is promptly and completely absorbed in the intestines, with negligible absorption from the stomach. Owing to these kinetic features, acetaminophen can be used to study gastric emptying. The newly-validated analytical method was employed to investigate whether plants used as anti-dyspeptics in the Brazilian traditional medicine affect the gastric emptying. Lyophilized aqueous extracts from leaves of Baccharis trimera (Less) DC., Asteraceae (carqueja), Maytenus ilicifolia Mart. Ex Reissek, Celastraceae (espinheira-santa) and Lippia alba (Mill.) N.E.Br. ex Britton & P. Wilson, Verbenaceae (erva-cidreira) were administered by gavage to female Wistar rats 30 min before a single oral dose of acetaminophen (50 mg/kg). L. alba extract (50 mg/kg) did not alter acetaminophen plasma concentration versus time curve an indication that it has no effect on gastric emptying. Extracts of B. trimera (50 mg/kg) and M. ilicifolia (30 and 50 mg/kg, but not 10 mg/kg), however, slightly delayed gastric emptying. M. ilicifolia given by intraperitoneal route (30 mg/kg) also retarded gastric emptying. In conclusion, the newly-validated analytical method is adequate for studying the effects of medicinal plants on gastric emptying.
https://doi.org/10.1016/j.bjp.2019.03.003
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3.
New sources of resistance to Myrothecium roridum and Podosphaeria xanthii in yellow melon
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Nunes, Elaíne Welk Lopes Pereira
; Preston, Hailson Alves Pereira
; DoVale, Júlio César
; Aragão, Fernando Antônio Souza de
; Antônio, Rafaela Priscila
; Nunes, Glauber Henrique de Sousa
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Crop Breeding and Applied Biotechnology
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The aim of this study was to identify sources of resistance toMyrothecium roridumand Podosphaeria xanthii.Initially, 86 inbred lines of the crossing AM-04 x Goldex, 91 inbred lines of the crossing AM-12 x Rochedo, and 75 inbred lines of the crossing ACP x AF-646 were evaluated. The trials were carried out in a greenhouse in a randomized block design with five replications. Seventeen inbred lines were identified as resistant to M. roridum.These inbred lines, as well as the parents and seven differential cultivars (checks) were evaluated for the reaction to P. xanthii.Ten inbred lines were selected as moderately resistant to M. roridumand resistant to P. xanthii.
https://doi.org/10.1590/1984-70332015v15n3n31
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4.
Growing knowledge: an overview of Seed Plant diversity in Brazil
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Zappi, Daniela C.
; Filardi, Fabiana L. Ranzato
; Leitman, Paula
; Souza, Vinícius C.
; Walter, Bruno M.T.
; Pirani, José R.
; Morim, Marli P.
; Queiroz, Luciano P.
; Cavalcanti, Taciana B.
; Mansano, Vidal F.
; Forzza, Rafaela C.
; Abreu, Maria C.
; Acevedo-Rodríguez, Pedro
; Agra, Maria F.
; Almeida Jr., Eduardo B.
; Almeida, Gracineide S.S.
; Almeida, Rafael F.
; Alves, Flávio M.
; Alves, Marccus
; Alves-Araujo, Anderson
; Amaral, Maria C.E.
; Amorim, André M.
; Amorim, Bruno
; Andrade, Ivanilza M.
; Andreata, Regina H.P.
; Andrino, Caroline O.
; Anunciação, Elisete A.
; Aona, Lidyanne Y.S.
; Aranguren, Yani
; Aranha Filho, João L.M.
; Araújo, Andrea O.
; Araújo, Ariclenes A.M.
; Araújo, Diogo
; Arbo, María M.
; Assis, Leandro
; Assis, Marta C.
; Assunção, Vivian A.
; Athiê-Souza, Sarah M.
; Azevedo, Cecilia O.
; Baitello, João B.
; Barberena, Felipe F.V.A.
; Barbosa, Maria R.V.
; Barros, Fábio
; Barros, Lucas A.V.
; Barros, Michel J.F.
; Baumgratz, José F.A.
; Bernacci, Luis C.
; Berry, Paul E.
; Bigio, Narcísio C.
; Biral, Leonardo
; Bittrich, Volker
; Borges, Rafael A.X.
; Bortoluzzi, Roseli L.C.
; Bove, Cláudia P.
; Bovini, Massimo G.
; Braga, João M.A.
; Braz, Denise M.
; Bringel Jr., João B.A.
; Bruniera, Carla P.
; Buturi, Camila V.
; Cabral, Elza
; Cabral, Fernanda N.
; Caddah, Mayara K.
; Caires, Claudenir S.
; Calazans, Luana S.B.
; Calió, Maria F.
; Camargo, Rodrigo A.
; Campbell, Lisa
; Canto-Dorow, Thais S.
; Carauta, Jorge P.P.
; Cardiel, José M.
; Cardoso, Domingos B.O.S.
; Cardoso, Leandro J.T.
; Carneiro, Camila R.
; Carneiro, Cláudia E.
; Carneiro-Torres, Daniela S.
; Carrijo, Tatiana T.
; Caruzo, Maria B.R.
; Carvalho, Maria L.S.
; Carvalho-Silva, Micheline
; Castello, Ana C.D.
; Cavalheiro, Larissa
; Cervi, Armando C.
; Chacon, Roberta G.
; Chautems, Alain
; Chiavegatto, Berenice
; Chukr, Nádia S.
; Coelho, Alexa A.O.P.
; Coelho, Marcus A.N.
; Coelho, Rubens L.G.
; Cordeiro, Inês
; Cordula, Elizabeth
; Cornejo, Xavier
; Côrtes, Ana L.A.
; Costa, Andrea F.
; Costa, Fabiane N.
; Costa, Jorge A.S.
; Costa, Leila C.
; Costa-e-Silva, Maria B.
; Costa-Lima, James L.
; Cota, Maria R.C.
; Couto, Ricardo S.
; Daly, Douglas C.
; De Stefano, Rodrigo D.
; De Toni, Karen
; Dematteis, Massimiliano
; Dettke, Greta A.
; Di Maio, Fernando R.
; Dórea, Marcos C.
; Duarte, Marília C.
; Dutilh, Julie H.A.
; Dutra, Valquíria F.
; Echternacht, Lívia
; Eggers, Lilian
; Esteves, Gerleni
; Ezcurra, Cecilia
; Falcão Junior, Marcus J.A.
; Feres, Fabíola
; Fernandes, José M.
; Ferreira, D.M.C.
; Ferreira, Fabrício M.
; Ferreira, Gabriel E.
; Ferreira, Priscila P.A.
; Ferreira, Silvana C.
; Ferrucci, Maria S.
; Fiaschi, Pedro
; Filgueiras, Tarciso S.
; Firens, Marcela
; Flores, Andreia S.
; Forero, Enrique
; Forster, Wellington
; Fortuna-Perez, Ana P.
; Fortunato, Reneé H.
; Fraga, Cléudio N.
; França, Flávio
; Francener, Augusto
; Freitas, Joelcio
; Freitas, Maria F.
; Fritsch, Peter W.
; Furtado, Samyra G.
; Gaglioti, André L.
; Garcia, Flávia C.P.
; Germano Filho, Pedro
; Giacomin, Leandro
; Gil, André S.B.
; Giulietti, Ana M.
; A.P.Godoy, Silvana
; Goldenberg, Renato
; Gomes da Costa, Géssica A.
; Gomes, Mário
; Gomes-Klein, Vera L.
; Gonçalves, Eduardo Gomes
; Graham, Shirley
; Groppo, Milton
; Guedes, Juliana S.
; Guimarães, Leonardo R.S.
; Guimarães, Paulo J.F.
; Guimarães, Elsie F.
; Gutierrez, Raul
; Harley, Raymond
; Hassemer, Gustavo
; Hattori, Eric K.O.
; Hefler, Sonia M.
; Heiden, Gustavo
; Henderson, Andrew
; Hensold, Nancy
; Hiepko, Paul
; Holanda, Ana S.S.
; Iganci, João R.V.
; Imig, Daniela C.
; Indriunas, Alexandre
; Jacques, Eliane L.
; Jardim, Jomar G.
; Kamer, Hiltje M.
; Kameyama, Cíntia
; Kinoshita, Luiza S.
; Kirizawa, Mizué
; Klitgaard, Bente B.
; Koch, Ingrid
; Koschnitzke, Cristiana
; Krauss, Nathália P.
; Kriebel, Ricardo
; Kuntz, Juliana
; Larocca, João
; Leal, Eduardo S.
; Lewis, Gwilym P.
; Lima, Carla T.
; Lima, Haroldo C.
; Lima, Itamar B.
; Lima, Laíce F.G.
; Lima, Laura C.P.
; Lima, Leticia R.
; Lima, Luís F.P.
; Lima, Rita B.
; Lírio, Elton J.
; Liro, Renata M.
; Lleras, Eduardo
; Lobão, Adriana
; Loeuille, Benoit
; Lohmann, Lúcia G.
; Loiola, Maria I.B.
; Lombardi, Julio A.
; Longhi-Wagner, Hilda M.
; Lopes, Rosana C.
; Lorencini, Tiago S.
; Louzada, Rafael B.
; Lovo, Juliana
; Lozano, Eduardo D.
; Lucas, Eve
; Ludtke, Raquel
; Luz, Christian L.
; Maas, Paul
; Machado, Anderson F.P.
; Macias, Leila
; Maciel, Jefferson R.
; Magenta, Mara A.G.
; Mamede, Maria C.H.
; Manoel, Evelin A.
; Marchioretto, Maria S.
; Marques, Juliana S.
; Marquete, Nilda
; Marquete, Ronaldo
; Martinelli, Gustavo
; Martins da Silva, Regina C.V.
; Martins, Ângela B.
; Martins, Erika R.
; Martins, Márcio L.L.
; Martins, Milena V.
; Martins, Renata C.
; Matias, Ligia Q.
; Maya-L., Carlos A.
; Mayo, Simon
; Mazine, Fiorella
; Medeiros, Debora
; Medeiros, Erika S.
; Medeiros, Herison
; Medeiros, João D.
; Meireles, José E.
; Mello-Silva, Renato
; Melo, Aline
; Melo, André L.
; Melo, Efigênia
; Melo, José I.M.
; Menezes, Cristine G.
; Menini Neto, Luiz
; Mentz, Lilian A.
; Mezzonato, A.C.
; Michelangeli, Fabián A.
; Milward-de-Azevedo, Michaele A.
; Miotto, Silvia T.S.
; Miranda, Vitor F.O.
; Mondin, Cláudio A.
; Monge, Marcelo
; Monteiro, Daniele
; Monteiro, Raquel F.
; Moraes, Marta D.
; Moraes, Pedro L.R.
; Mori, Scott A.
; Mota, Aline C.
; Mota, Nara F.O.
; Moura, Tania M.
; Mulgura, Maria
; Nakajima, Jimi N.
; Nardy, Camila
; Nascimento Júnior, José E.
; Noblick, Larry
; Nunes, Teonildes S.
; O'Leary, Nataly
; Oliveira, Arline S.
; Oliveira, Caetano T.
; Oliveira, Juliana A.
; Oliveira, Luciana S.D.
; Oliveira, Maria L.A.A.
; Oliveira, Regina C.
; Oliveira, Renata S.
; Oliveira, Reyjane P.
; Paixão-Souza, Bruno
; Parra, Lara R.
; Pasini, Eduardo
; Pastore, José F.B.
; Pastore, Mayara
; Paula-Souza, Juliana
; Pederneiras, Leandro C.
; Peixoto, Ariane L.
; Pelissari, Gisela
; Pellegrini, Marco O.O.
; Pennington, Toby
; Perdiz, Ricardo O.
; Pereira, Anna C.M.
; Pereira, Maria S.
; Pereira, Rodrigo A.S.
; Pessoa, Clenia
; Pessoa, Edlley M.
; Pessoa, Maria C.R.
; Pinto, Luiz J.S.
; Pinto, Rafael B.
; Pontes, Tiago A.
; Prance, Ghillean T.
; Proença, Carolyn
; Profice, Sheila R.
; Pscheidt, Allan C.
; Queiroz, George A.
; Queiroz, Rubens T.
; Quinet, Alexandre
; Rainer, Heimo
; Ramos, Eliana
; Rando, Juliana G.
; Rapini, Alessandro
; Reginato, Marcelo
; Reis, Ilka P.
; Reis, Priscila A.
; Ribeiro, André R.O.
; Ribeiro, José E.L.S.
; Riina, Ricarda
; Ritter, Mara R.
; Rivadavia, Fernando
; Rocha, Antônio E.S.
; Rocha, Maria J.R.
; Rodrigues, Izabella M.C.
; Rodrigues, Karina F.
; Rodrigues, Rodrigo S.
; Rodrigues, Rodrigo S.
; Rodrigues, Vinícius T.
; Rodrigues, William
; Romaniuc Neto, Sérgio
; Romão, Gerson O.
; Romero, Rosana
; Roque, Nádia
; Rosa, Patrícia
; Rossi, Lúcia
; Sá, Cyl F.C.
; Saavedra, Mariana M.
; Saka, Mariana
; Sakuragui, Cássia M.
; Salas, Roberto M.
; Sales, Margareth F.
; Salimena, Fatima R.G.
; Sampaio, Daniela
; Sancho, Gisela
; Sano, Paulo T.
; Santos, Alessandra
; Santos, Élide P.
; Santos, Juliana S.
; Santos, Marianna R.
; Santos-Gonçalves, Ana P.
; Santos-Silva, Fernanda
; São-Mateus, Wallace
; Saraiva, Deisy P.
; Saridakis, Dennis P.
; Sartori, Ângela L.B.
; Scalon, Viviane R.
; Schneider, Ângelo
; Sebastiani, Renata
; Secco, Ricardo S.
; Senna, Luisa
; Senna-Valle, Luci
; Shirasuna, Regina T.
; Silva Filho, Pedro J.S.
; Silva, Anádria S.
; Silva, Christian
; Silva, Genilson A.R.
; Silva, Gisele O.
; Silva, Márcia C.R.
; Silva, Marcos J.
; Silva, Marcos J.
; Silva, Otávio L.M.
; Silva, Rafaela A.P.
; Silva, Saura R.
; Silva, Tania R.S.
; Silva-Gonçalves, Kelly C.
; Silva-Luz, Cíntia L.
; Simão-Bianchini, Rosângela
; Simões, André O.
; Simpson, Beryl
; Siniscalchi, Carolina M.
; Siqueira Filho, José A.
; Siqueira, Carlos E.
; Siqueira, Josafá C.
; Smith, Nathan P.
; Snak, Cristiane
; Soares Neto, Raimundo L.
; Soares, Kelen P.
; Soares, Marcos V.B.
; Soares, Maria L.
; Soares, Polyana N.
; Sobral, Marcos
; Sodré, Rodolfo C.
; Somner, Genise V.
; Sothers, Cynthia A.
; Sousa, Danilo J.L.
; Souza, Elnatan B.
; Souza, Élvia R.
; Souza, Marcelo
; Souza, Maria L.D.R.
; Souza-Buturi, Fátima O.
; Spina, Andréa P.
; Stapf, María N.S.
; Stefano, Marina V.
; Stehmann, João R.
; Steinmann, Victor
; Takeuchi, Cátia
; Taylor, Charlotte M.
; Taylor, Nigel P.
; Teles, Aristônio M.
; Temponi, Lívia G.
; Terra-Araujo, Mário H.
; Thode, Veronica
; Thomas, W.Wayt
; Tissot-Squalli, Mara L.
; Torke, Benjamin M.
; Torres, Roseli B.
; Tozzi, Ana M.G.A.
; Trad, Rafaela J.
; Trevisan, Rafael
; Trovó, Marcelo
; Valls, José F.M.
; Vaz, Angela M.S.F.
; Versieux, Leonardo
; Viana, Pedro L.
; Vianna Filho, Marcelo D.M.
; Vieira, Ana O.S.
; Vieira, Diego D.
; Vignoli-Silva, Márcia
; Vilar, Thaisa
; Vinhos, Franklin
; Wallnöfer, Bruno
; Wanderley, Maria G.L.
; Wasshausen, Dieter
; Watanabe, Maurício T.C.
; Weigend, Maximilian
; Welker, Cassiano A.D.
; Woodgyer, Elizabeth
; Xifreda, Cecilia C.
; Yamamoto, Kikyo
; Zanin, Ana
; Zenni, Rafael D.
; Zickel, Carmem S
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Resumo Um levantamento atualizado das plantas com sementes e análises relevantes acerca desta biodiversidade são apresentados. Este trabalho se iniciou em 2010 com a publicação do Catálogo de Plantas e Fungos e, desde então vem sendo atualizado por mais de 430 especialistas trabalhando online. O Brasil abriga atualmente 32.086 espécies nativas de Angiospermas e 23 espécies nativas de Gimnospermas e estes novos dados mostram um aumento de 3% da riqueza em relação a 2010. A Amazônia é o Domínio Fitogeográfico com o maior número de espécies de Gimnospermas, enquanto que a Floresta Atlântica possui a maior riqueza de Angiospermas. Houve um crescimento considerável no número de espécies e nas taxas de endemismo para a maioria dos Domínios (Caatinga, Cerrado, Floresta Atlântica, Pampa e Pantanal), com exceção da Amazônia que apresentou uma diminuição de 2,5% de endemicidade. Entretanto, a maior parte das plantas com sementes que ocorrem no Brasil (57,4%) é endêmica deste território. A proporção de formas de vida varia de acordo com os diferentes Domínios: árvores são mais expressivas na Amazônia e Floresta Atlântica do que nos outros biomas, ervas são dominantes no Pampa e as lianas apresentam riqueza expressiva na Amazônia, Floresta Atlântica e Pantanal. Este trabalho não só quantifica a biodiversidade brasileira, mas também indica as lacunas de conhecimento e o desafio a ser enfrentado para a conservação desta flora.
Abstract An updated inventory of Brazilian seed plants is presented and offers important insights into the country's biodiversity. This work started in 2010, with the publication of the Plants and Fungi Catalogue, and has been updated since by more than 430 specialists working online. Brazil is home to 32,086 native Angiosperms and 23 native Gymnosperms, showing an increase of 3% in its species richness in relation to 2010. The Amazon Rainforest is the richest Brazilian biome for Gymnosperms, while the Atlantic Rainforest is the richest one for Angiosperms. There was a considerable increment in the number of species and endemism rates for biomes, except for the Amazon that showed a decrease of 2.5% of recorded endemics. However, well over half of Brazillian seed plant species (57.4%) is endemic to this territory. The proportion of life-forms varies among different biomes: trees are more expressive in the Amazon and Atlantic Rainforest biomes while herbs predominate in the Pampa, and lianas are more expressive in the Amazon, Atlantic Rainforest, and Pantanal. This compilation serves not only to quantify Brazilian biodiversity, but also to highlight areas where there information is lacking and to provide a framework for the challenge faced in conserving Brazil's unique and diverse flora.
https://doi.org/10.1590/2175-7860201566411
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5.
First serine protease inhibitor isolated from Rhinella schneideri poison
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Journal of Venomous Animals and Toxins including Tropical Diseases
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Background Toad secretions are a source of molecules with potential biotechnological application on a wide spectrum of diseases. Toads from theRhinella family have two kinds of poisonous glands, namely granular and mucous glands. Rhinella schneideritoads produce granular secretions that comprise a great number of molecules, including serine proteases inhibitors. Serine proteases, such as trypsin, chymotrypsin and elastase, are enzymes that have a serine amino acid into its catalytic site and can be found in a large number of vertebrate species and pathogenic microorganisms. Therefore, the present work aims to purify a serine protease inhibitor from Rhinella schneiderigranular secretions.Findings This study presents the protocol used to purify a serine protease inhibitor from the Rhinella schneideri poison. The granular secretion was submitted to dialysis in order to separate the low molecular weight compounds, which were submitted to a reversed phase-fast protein liquid chromatography fractionation step in a C2C18 column. The major fractions were tested over trypsin, chymotrypsin and elastase through colorimetric assay. The inhibition tests were performed with the enzyme in absence (positive control) and presence of fractions, denatured enzyme (negative control) and the respective chromogenic substrate. Rs20 was the compound with the major inhibitory activity over chymotrypsin, inducing a delay in the formation of the chromogenic enzymatic product. The structure characterization of Rs20 was performed by high resolution electronspray ionization-mass spectrometry (HRESI-MS) and gas chromatography coupled with mass spectrometry (GC-MS). HRESI showed an intense signal suggesting the presence of bufadienolide with less than 10 ppm error. In addition, it was observed a low intense signal at m/z399 that could be lithocholic acid, a biosynthetic precursor of bufadienolide. Finally, GC-MS analysis applying NIST library identification reinforced this hypothesis.Conclusions The current study have isolated and partially characterized the function and structure of the first bufadienolide with inhibitory action over chymotrypsin.
https://doi.org/10.1186/s40409-015-0029-4
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6.
Anomalias congênitas: internações em unidade pediátrica
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Polita, Naiara Barros
; Ferrari, Rosângela Aparecida P.
; Moraes, Priscila Santa de
; Sant'Anna, Flávia Lopes
; Tacla, Mauren Teresa G. M.
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OBJETIVO: Analisar o perfil das crianças com anomalias congênitas em unidade pediátrica. MÉTODOS: Trata-se de uma pesquisa quantitativa e retrospectiva. A amostra constituiu-se dos prontuários de crianças de 0 a 12 anos que foram internadas na unidade pediátrica de um hospital escola público em Londrina, Paraná, de 2007 a 2009. Os dados foram obtidos por busca ativa aos registros processados no programa Epi-Info®, e submetidos à análise estatística descritiva. RESULTADOS: Ocorreram 282 primeiras internações de crianças com anomalias congênitas. Destas, 130 (46,0%) necessitaram de reinternações e totalizaram, portanto, 412. A média de internação foi de três dias. Houve predomínio do sexo masculino e faixa etária de três a sete anos. Entre as anomalias prevaleceram aquelas do aparelho geniturinário (19,6%), seguidas pelas fendas labiais e palatinas (17,3%) e pelo aparelho circulatório (16,2%). Foram realizados 269 procedimentos cirúrgicos para corrigir as anomalias. CONCLUSÕES: Este estudo reafirma a importância epidemiológica das anomalias congênitas, apontando para a necessidade de prevenir e controlar os fatores desencadeadores.
OBJECTIVE:To analyze the profile of children with congenital anomalies admitted to a pediatric unit. METHODS: This is a quantitative and retrospective research. The sample consisted of records of children aged from 0 to 12 years old who were hospitalized in the pediatric unit of the University Hospital of Londrina, Paraná, Southern Brazil, from 2007 to 2009. Data were collected by chart review processed in the Epi-Info® program, and they were submitted to descriptive statistical analysis. RESULTS: There were 282 first admissions of children with congenital anomalies. Of these, 130 (46.0%) required readmission totaling therefore 412 hospitalizations. The mean stay was three days. There was a male predominance, and the age range was from three to seven years old. The most frequent congenital anomalies were in the genital and urinary systems (19.6%), followed by cleft lip and palate (17.3%), and those of the circulatory system (16.2%). There were 269 surgical procedures to correct there anomalies. CONCLUSIONS: This study underscores the epidemiological importance of congenital malformations, highlighting the need to prevent and control the triggering factors.
OBJETIVO: Analizar el perfil de niños con anomalías congénitas en unidad pediátrica. MÉTODOS: Se trata de investigación cuantitativa y retrospectiva. La muestra se constituye de prontuarios de niños de cero a 12 años de edad, internadas en la unidad pediátrica de un hospital escuela público en Londrina (Paraná, Brasil), en el periodo de 2007 a 2009. Los datos fueron obtenidos por búsqueda activa a los prontuarios, procesados en el programa Epi-Info®, y sometidos al análisis estadístico descriptivo. RESULTADOS: Ocurrieron 282 primeras internaciones de niños con anomalías congénitas. De estas, 130 (46%) necesitaron de reinternaciones, totalizando, por lo tanto, 412 internaciones. El promedio de internación fue de tres días. Hubo predominio del sexo masculino y franja de edad de 3 a 7 años. Entre las anomalías, predominaron las del sistema genitourinario (19,6%), hendiduras labiales y palatinas (17,3%) y sistema circulatorio (16,2%). Se realizaron 269 procedimientos quirúrgicos para corrección de las anomalías. CONCLUSIÓN: Este estudio reafirma la importancia epidemiológica de las anomalías congénitas, señalando la necesidad de prevención y control de los factores desencadenadores.
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7.
Cultivation of algae in photobioreator and obtention of biodiesel
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Hobuss, Cristiane B.
; Rosales, Pauline F.
; Venzke, Dalila
; Souza, Priscila O.
; Gobbi, Priscilla C.
; Gouvea, Lidiane P.
; Santos, Marco A. Z.
; Pinto, Ernani
; Jacob-Lopes, Eduardo
; Pereira, Claudio M. P.
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Revista Brasileira de Farmacognosia
- Métricas do periódico
In this work we described the cultivation of Chlorella vulgaris in a photobioreactor to algal biomass production. The dried biomass was used as feedstock for biodiesel production, it presented 26% lipids and via sonocatalysis stage of the methodology resulted in 60% of fatty acid methyl esters (FAME). The FAME content was confirmed by Gas Chromatography (GC).
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8.
Calcium and cell death signaling in neurodegeneration and aging
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Smaili, Soraya
; Hirata, Hanako
; Ureshino, Rodrigo
; Monteforte, Priscila T.
; Morales, Ana P.
; Muler, Mari L.
; Terashima, Juliana
; Oseki, Karen
; Rosenstock, Tatiana R.
; Lopes, Guiomar S.
; Bincoletto, Claudia
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Anais da Academia Brasileira de Ciências
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Aumentos transientes no cálcio citosólico (Ca c2+) e mitocondrial (Ca m2+) são elementos essenciais no controle de muitos processos fisiológicos. No entanto, aumentos sustentados do Ca c2+ e do Ca m2+ podem contribuir para o estresse oxidativo ea morte celular. Muitos eventos estão relacionados ao aumentono Ca c2+, incluindo a regulação e ativação de várias enzimas dependentes de Ca2+ como as fosfolipases, proteases e nucleases. A mitocôndria e o retículo endoplasmático têm um papel central na manutenção da homeostase intracellular de Ca c2+ e na regulação da morte celular. Várias evidências mostraram que, na presença de certos estímulos apoptóticos, a ativação dos processos mitocondriais pode promover a liberação de citocromo c, seguida da ativação de caspases, fragmentação nuclear e morte celular por apoptose. O objetivo desta revisão é mostrar como aumentos na sinalização de Ca2+ podem estar relacionados aos eventos de indução da morte celular apoptótica. Além disso, evidenciar como a homeostase de Ca2+ pode ser importante e está envolvida nos mecanismos presentes nos processos de neurodegeneração e envelhecimento.
Transient increase in cytosolic (Cac2+) and mitochondrial Ca2+ (Ca m2+) are essential elements in the control of many physiological processes. However, sustained increases in Ca c2+ and Ca m2+ may contribute to oxidative stress and cell death. Several events are related to the increase in Ca m2+, including regulation and activation of a number of Ca2+ dependent enzymes, such as phospholipases, proteases and nucleases. Mitochondria and endoplasmic reticulum (ER) play pivotal roles in the maintenance of intracellular Ca2+ homeostasis and regulation of cell death. Several lines of evidence have shown that, in the presence of some apoptotic stimuli, the activation of mitochondrial processes maylead to the release of cytochrome c followed by the activation of caspases, nuclear fragmentation and apoptotic cell death. The aim of this review was to show how changes in calcium signaling can be related to the apoptotic cell death induction. Calcium homeostasis was also shown to be an important mechanism involved in neurodegenerative and aging processes.
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9.
Mecanismo genético de resistência em três cultivares de algodoeiro a Xanthomonas axonopodis pv. malvacearum
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Zandoná, Carla
; Mehta, Yeshwant R.
; Schuster, Ivan
; Alves, Priscila F. R.
; Bomfeti, Cleide A.
; Bibanco, Kelen R. P.
; Silva, Rosana B.
; Lopes, Lucilene P.
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A mancha angular do algodoeiro (Gossypium hirsutum) causada por Xanthomonas axonopodis pv. malvacearum (Xam) é uma doença de importância econômica para o Brasil, e sua severidade depende de fatores climáticos e da cultivar. A doença não é controlada por produtos químicos sendo que seu controle depende da utilização de sementes sadias, e resistência varietal. DeltaOPAL, EPAMIG Liça, e Fibermax 986 são importantes fontes de resistência a Xam, pois além de resistência, apresentam boas características agronômicas. O objetivo do presente trabalho foi estudar o mecanismo de resistência à mancha angular envolvendo cruzamentos entre as três cultivares resistentes e a suscetível BRS Ita 90, em casa de vegetação. Populações parentais, F1 e F2 foram avaliadas após inoculação com um isolado agressivo de Xam. As três cultivares apresentaram mecanismos diferentes de resistência. Nas cultivares DeltaOPAL e EPAMIG Liça a resistência é conferida por um gene dominante, enquanto que em Fibermax 986, a resistência é dada por dois genes dominantes, independentes e complementares.
Angular leaf spot of cotton (Gossypium hirsutum) caused by Xanthomonas axonopodis pv. malvacearum (Xam) is an economically important disease in Brazil. The severity of the disease depends on climatic conditions and the type of cultivar. The disease is not satisfactorily controlled by the use of chemicals, but with control depending basically on the use of healthy seed and resistant varieties. Cultivars DeltaOPAL, EPAMIG Liça and Fibermax 986 are the best sources of resistance to Xam, since besides resistance, these cultivars possess desirable agronomic characteristics. The objective of the present investigation was to verify the mechanism of resistance to angular leaf spot in these three resistant cotton cultivars by crossing them with the susceptible cultivar BRS Ita 90, under glasshouse conditions. Parental populations F1 and F2 were evaluated in the glasshouse after inoculation with an aggressive isolate of Xam. All the three of the cultivars revealed different mechanisms of resistance. In cvs. DeltaOPAL and EPAMIG Liça, resistance is governed by one dominant gene, whereas in cv. Fibermax 986, the resistance is governed by two dominant, independent and complementary genes.
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10.
Resposta da comunidade de Histeridae (Coleoptera) a diferentes fisionomias da vegetação de restingas no Espírito Santo
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Lopes, Priscila P.
; Louzada, Júlio N.C.
; Oliveira-Rebouças, Patrícia L.
; Nascimento, Leila M.
; Santana-Reis, Vanessa P.G.
.
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Buscando determinar se a estrutura da vegetação afeta a riqueza e estrutura da comunidade de besouros predadores (Histeridae), quatro ambientes no Espírito Santo, com grau decrescente de complexidade estrutural de vegetação (restinga arbórea preservada, restinga aberta de Clusia spp., restinga queimada e pastagem) foram amostrados com armadilha iscada (fezes humanas e de cavalo). Foram encontradas oito espécies de Histeridae, sendo que a riqueza de espécies foi praticamente igual nos oito ambientes (4 a 5 espécies), e a diferença de diversidade não foi significativa. Apesar da não significância, as comunidades podem ser diferenciadas pela substituição de espécies dominantes e diferenciação de composição. O padrão de substituição de espécies foi relacionado à diferença de fisionomia da vegetação, que ao impor barreiras à dispersão de odores, afeta a localização dos recursos, o que permite que espécies raras (porém mais eficientes na localização de recursos) sejam mantidas na comunidade. A riqueza local nos vários ambientes estudados não foi diferente devido à natureza efêmera (restritos quanto ao tempo em que fica disponível para colonização e terem seu poder de atração reduzido no tempo) dos recursos em decomposição, impondo uma restrição ao número de espécies. Sua distribuição aleatória e imprevisível, por sua vez, é responsável pelo caráter lotérico de sua colonização, onde tanto espécies abundantes quanto raras podem colonizá-lo, seja pela vantagem numérica ou por uma eventual superioridade na capacidade de localização do recurso.
Aiming to determine if the vegetation structure affects the local and regional richness and community structure of predator beetles (Histeridae), four habitats established on sandy soils (restingas and pasture) in Espírito Santo State, Brazil, with a structural complexity gradient and showing varying degrees of disturbance were surveyed with pitfall-baited traps (human and horse dung). Eight histerid species were registered. The species richness was almost equal in all habitats (4 to 5 species), and there was no significant difference in diversity and equitability. Although not significantly different in diversity, the communities could be considered different due to the gradual substitution of the dominant species and composition. The species substitution pattern was related to the change in vegetation physiognomy, which seems to impose barriers to the odour dispersion, affecting resource location, and allowing rare (but more efficient in resource localization) species to be maintained in the community. The local richness of histerids in pasture and in different physiognomies of restinga is similar and low due to the ephemeral nature of decaying resources, which impose a limit to the number of species that get to the resource. Its spatial and temporal unpredictability, by its turn, allows both common and rare species to remain in the community, the first through numeric advantage and the last through an eventual superiority in finding the resource.
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