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Short term creatine loading improves strength endurance even without changing maximal strength, RPE, fatigue index, blood lactate, and mode state RPE index lactate
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FURTADO, EDILSON TADEU F.
; OLIVEIRA, JOÃO PAULO L. DE
; PEREIRA, ISABELA S.B.
; VEIGA, ELAYNE P.
; SILVA, SANDRO F. DA
; ABREU, WILSON CÉSAR DE
.
Anais da Academia Brasileira de Ciências
- Métricas do periódico
Abstract Creatine is consumed by athletes to increase strength and gain muscle. The aim of this study was to evaluate the effects of creatine supplementation on maximal strength and strength endurance. Twelve strength-trained men (25.2 ± 3.4 years) supplemented with 20 g Creatina + 10g maltodextrin or placebo (20g starch + 10g maltodextrin) for five days in randomized order. Maximal strength and strength endurance (4 sets 70% 1RM until concentric failure) were determined in the bench press. In addition, blood lactate, rate of perceived effort, fatigue index, and mood state were evaluated. All measurements were performed before and after the supplementation period. There were no significant changing in maximal strength, blood lactate, RPE, fatigue index, and mood state in either treatment. However, the creatine group performed more repetitions after the supplementation (Cr: Δ = +3.4 reps, p = 0.036, g = 0.53; PLA: Δ = +0.3reps, p = 0.414, g = 0.06), and higher total work (Cr: Δ = +199.5au, p = 0.038, g = 0.52; PLA: Δ = +26.7au, p = 0.402, g = 0.07). Creatine loading for five days allowed the subjects to perform more repetitions, resulting in greater total work, but failed to change the maximum strength. muscle strengthtrained trained 25.2 252 25 2 (25. 34 3 4 3. years 20g order ( 70 RM failure press addition lactate effort index evaluated period RPE treatment However Cr (Cr +3. reps 0036 0 036 0.036 0.53 053 53 PLA 03reps 3reps +0.3reps 0414 414 0.414 0.06, 006 0.06 , 06 0.06) 1995au au 199 5au +199.5au 0038 038 0.038 0.52 052 52 267au 26 7au +26.7au 0402 402 0.402 0.07. 007 0.07 . 07 0.07) 25. (25 7 +3 003 03 0.03 0.5 05 5 041 41 0.41 00 0.0 19 040 40 0.40 (2 0. 04 0.4 1
2.
Diretrizes Brasileiras de Medidas da Pressão Arterial Dentro e Fora do Consultório – 2023 202 20 2
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Feitosa, Audes Diogenes de Magalhães
; Barroso, Weimar Kunz Sebba
; Mion Junior, Decio
; Nobre, Fernando
; Mota-Gomes, Marco Antonio
; Jardim, Paulo Cesar Brandão Veiga
; Amodeo, Celso
; Oliveira, Adriana Camargo
; Alessi, Alexandre
; Sousa, Ana Luiza Lima
; Brandão, Andréa Araujo
; Pio-Abreu, Andrea
; Sposito, Andrei C.
; Pierin, Angela Maria Geraldo
; Paiva, Annelise Machado Gomes de
; Spinelli, Antonio Carlos de Souza
; Machado, Carlos Alberto
; Poli-de-Figueiredo, Carlos Eduardo
; Rodrigues, Cibele Isaac Saad
; Forjaz, Claudia Lucia de Moraes
; Sampaio, Diogo Pereira Santos
; Barbosa, Eduardo Costa Duarte
; Freitas, Elizabete Viana de
; Cestario, Elizabeth do Espirito Santo
; Muxfeldt, Elizabeth Silaid
; Lima Júnior, Emilton
; Campana, Erika Maria Gonçalves
; Feitosa, Fabiana Gomes Aragão Magalhães
; Consolim-Colombo, Fernanda Marciano
; Almeida, Fernando Antônio de
; Silva, Giovanio Vieira da
; Moreno Júnior, Heitor
; Finimundi, Helius Carlos
; Guimarães, Isabel Cristina Britto
; Gemelli, João Roberto
; Barreto-Filho, José Augusto Soares
; Vilela-Martin, José Fernando
; Ribeiro, José Marcio
; Yugar-Toledo, Juan Carlos
; Magalhães, Lucélia Batista Neves Cunha
; Drager, Luciano F.
; Bortolotto, Luiz Aparecido
; Alves, Marco Antonio de Melo
; Malachias, Marcus Vinícius Bolívar
; Neves, Mario Fritsch Toros
; Santos, Mayara Cedrim
; Dinamarco, Nelson
; Moreira Filho, Osni
; Passarelli Júnior, Oswaldo
; Vitorino, Priscila Valverde de Oliveira
; Miranda, Roberto Dischinger
; Bezerra, Rodrigo
; Pedrosa, Rodrigo Pinto
; Paula, Rogerio Baumgratz de
; Okawa, Rogério Toshiro Passos
; Póvoa, Rui Manuel dos Santos
; Fuchs, Sandra C.
; Lima, Sandro Gonçalves de
; Inuzuka, Sayuri
; Ferreira-Filho, Sebastião Rodrigues
; Fillho, Silvio Hock de Paffer
; Jardim, Thiago de Souza Veiga
; Guimarães Neto, Vanildo da Silva
; Koch, Vera Hermina Kalika
; Gusmão, Waléria Dantas Pereira
; Oigman, Wille
; Nadruz Junior, Wilson
.
3.
Catálogo Taxonômico da Fauna do Brasil: Setting the baseline knowledge on the animal diversity in Brazil Brasil
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Boeger, Walter A.
; Valim, Michel P.
; Zaher, Hussam
; Rafael, José A.
; Forzza, Rafaela C.
; Percequillo, Alexandre R.
; Serejo, Cristiana S.
; Garraffoni, André R.S.
; Santos, Adalberto J.
; Slipinski, Adam
; Linzmeier, Adelita M.
; Calor, Adolfo R.
; Garda, Adrian A.
; Kury, Adriano B.
; Fernandes, Agatha C.S.
; Agudo-Padrón, Aisur I.
; Akama, Alberto
; Silva Neto, Alberto M. da
; Burbano, Alejandro L.
; Menezes, Aleksandra
; Pereira-Colavite, Alessandre
; Anichtchenko, Alexander
; Lees, Alexander C.
; Bezerra, Alexandra M.R.
; Domahovski, Alexandre C.
; Pimenta, Alexandre D.
; Aleixo, Alexandre L.P.
; Marceniuk, Alexandre P.
; Paula, Alexandre S. de
; Somavilla, Alexandre
; Specht, Alexandre
; Camargo, Alexssandro
; Newton, Alfred F.
; Silva, Aline A.S. da
; Santos, Aline B. dos
; Tassi, Aline D.
; Aragão, Allan C.
; Santos, Allan P.M.
; Migotto, Alvaro E.
; Mendes, Amanda C.
; Cunha, Amanda
; Chagas Júnior, Amazonas
; Sousa, Ana A.T. de
; Pavan, Ana C.
; Almeida, Ana C.S.
; Peronti, Ana L.B.G.
; Henriques-Oliveira, Ana L.
; Prudente, Ana L.
; Tourinho, Ana L.
; Pes, Ana M.O.
; Carmignotto, Ana P.
; Wengrat, Ana P.G. da Silva
; Dornellas, Ana P.S.
; Molin, Anamaria Dal
; Puker, Anderson
; Morandini, André C.
; Ferreira, André da S.
; Martins, André L.
; Esteves, André M.
; Fernandes, André S.
; Roza, André S.
; Köhler, Andreas
; Paladini, Andressa
; Andrade, Andrey J. de
; Pinto, Ângelo P.
; Salles, Anna C. de A.
; Gondim, Anne I.
; Amaral, Antonia C.Z.
; Rondón, Antonio A.A.
; Brescovit, Antonio
; Lofego, Antônio C.
; Marques, Antonio C.
; Macedo, Antonio
; Andriolo, Artur
; Henriques, Augusto L.
; Ferreira Júnior, Augusto L.
; Lima, Aurino F. de
; Barros, Ávyla R. de A.
; Brito, Ayrton do R.
; Romera, Bárbara L.V.
; Vasconcelos, Beatriz M.C. de
; Frable, Benjamin W.
; Santos, Bernardo F.
; Ferraz, Bernardo R.
; Rosa, Brunno B.
; Sampaio, Brunno H.L.
; Bellini, Bruno C.
; Clarkson, Bruno
; Oliveira, Bruno G. de
; Corrêa, Caio C.D.
; Martins, Caleb C.
; Castro-Guedes, Camila F. de
; Souto, Camilla
; Bicho, Carla de L.
; Cunha, Carlo M.
; Barboza, Carlos A. de M.
; Lucena, Carlos A.S. de
; Barreto, Carlos
; Santana, Carlos D.C.M. de
; Agne, Carlos E.Q.
; Mielke, Carlos G.C.
; Caetano, Carlos H.S.
; Flechtmann, Carlos H.W.
; Lamas, Carlos J.E.
; Rocha, Carlos
; Mascarenhas, Carolina S.
; Margaría, Cecilia B.
; Waichert, Cecilia
; Digiani, Celina
; Haddad, Célio F.B.
; Azevedo, Celso O.
; Benetti, Cesar J.
; Santos, Charles M.D. dos
; Bartlett, Charles R.
; Bonvicino, Cibele
; Ribeiro-Costa, Cibele S.
; Santos, Cinthya S.G.
; Justino, Cíntia E.L.
; Canedo, Clarissa
; Bonecker, Claudia C.
; Santos, Cláudia P.
; Carvalho, Claudio J.B. de
; Gonçalves, Clayton C.
; Galvão, Cleber
; Costa, Cleide
; Oliveira, Cléo D.C. de
; Schwertner, Cristiano F.
; Andrade, Cristiano L.
; Pereira, Cristiano M.
; Sampaio, Cristiano
; Dias, Cristina de O.
; Lucena, Daercio A. de A.
; Manfio, Daiara
; Amorim, Dalton de S.
; Queiroz, Dalva L. de
; Queiroz, Dalva L. de
; Colpani, Daniara
; Abbate, Daniel
; Aquino, Daniel A.
; Burckhardt, Daniel
; Cavallari, Daniel C.
; Prado, Daniel de C. Schelesky
; Praciano, Daniel L.
; Basílio, Daniel S.
; Bená, Daniela de C.
; Toledo, Daniela G.P. de
; Takiya, Daniela M.
; Fernandes, Daniell R.R.
; Ament, Danilo C.
; Cordeiro, Danilo P.
; Silva, Darliane E.
; Pollock, Darren A.
; Muniz, David B.
; Gibson, David I.
; Nogueira, David S.
; Marques, Dayse W.A.
; Lucatelli, Débora
; Garcia, Deivys M.A.
; Baêta, Délio
; Ferreira, Denise N.M.
; Rueda-Ramírez, Diana
; Fachin, Diego A.
; Souza, Diego de S.
; Rodrigues, Diego F.
; Pádua, Diego G. de
; Barbosa, Diego N.
; Dolibaina, Diego R.
; Amaral, Diogo C.
; Chandler, Donald S.
; Maccagnan, Douglas H.B.
; Caron, Edilson
; Carvalho, Edrielly
; Adriano, Edson A.
; Abreu Júnior, Edson F. de
; Pereira, Edson H.L.
; Viegas, Eduarda F.G.
; Carneiro, Eduardo
; Colley, Eduardo
; Eizirik, Eduardo
; Santos, Eduardo F. dos
; Shimbori, Eduardo M.
; Suárez-Morales, Eduardo
; Arruda, Eliane P. de
; Chiquito, Elisandra A.
; Lima, Élison F.B.
; Castro, Elizeu B. de
; Orlandin, Elton
; Nascimento, Elynton A. do
; Razzolini, Emanuel
; Gama, Emanuel R.R.
; Araujo, Enilma M. de
; Nishiyama, Eric Y.
; Spiessberger, Erich L.
; Santos, Érika C.L. dos
; Contreras, Eugenia F.
; Galati, Eunice A.B.
; Oliveira Junior, Evaldo C. de
; Gallardo, Fabiana
; Hernandes, Fabio A.
; Lansac-Tôha, Fábio A.
; Pitombo, Fabio B.
; Dario, Fabio Di
; Santos, Fábio L. dos
; Mauro, Fabio
; Nascimento, Fabio O. do
; Olmos, Fabio
; Amaral, Fabio R.
; Schunck, Fabio
; Godoi, Fábio S. P. de
; Machado, Fabrizio M.
; Barbo, Fausto E.
; Agrain, Federico A.
; Ribeiro, Felipe B.
; Moreira, Felipe F.F.
; Barbosa, Felipe F.
; Silva, Fenanda S.
; Cavalcanti, Fernanda F.
; Straube, Fernando C.
; Carbayo, Fernando
; Carvalho Filho, Fernando
; Zanella, Fernando C.V.
; Jacinavicius, Fernando de C.
; Farache, Fernando H.A.
; Leivas, Fernando
; Dias, Fernando M.S.
; Mantellato, Fernando
; Vaz-de-Mello, Fernando Z.
; Gudin, Filipe M.
; Albuquerque, Flávio
; Molina, Flavio B.
; Passos, Flávio D.
; Shockley, Floyd W.
; Pinheiro, Francielly F.
; Mello, Francisco de A.G. de
; Nascimento, Francisco E. de L.
; Franco, Francisco L.
; Oliveira, Francisco L. de
; Melo, Francisco T. de V.
; Quijano, Freddy R.B.
; Salles, Frederico F.
; Biffi, Gabriel
; Queiroz, Gabriel C.
; Bizarro, Gabriel L.
; Hrycyna, Gabriela
; Leviski, Gabriela
; Powell, Gareth S.
; Santos, Geane B. dos
; Morse, Geoffrey E.
; Brown, George
; Mattox, George M.T.
; Zimbrão, Geraldo
; Carvalho, Gervásio S.
; Miranda, Gil F.G.
; Moraes, Gilberto J. de
; Lourido, Gilcélia M.
; Neves, Gilmar P.
; Moreira, Gilson R.P.
; Montingelli, Giovanna G.
; Maurício, Giovanni N.
; Marconato, Gláucia
; Lopez, Guilherme E.L.
; Silva, Guilherme L. da
; Muricy, Guilherme
; Brito, Guilherme R.R.
; Garbino, Guilherme S.T.
; Flores, Gustavo E.
; Graciolli, Gustavo
; Libardi, Gustavo S.
; Proctor, Heather C.
; Gil-Santana, Helcio R.
; Varella, Henrique R.
; Escalona, Hermes E.
; Schmitz, Hermes J.
; Rodrigues, Higor D.D.
; Galvão Filho, Hilton de C.
; Quintino, Hingrid Y.S.
; Pinto, Hudson A.
; Rainho, Hugo L.
; Miyahira, Igor C.
; Gonçalves, Igor de S.
; Martins, Inês X.
; Cardoso, Irene A.
; Oliveira, Ismael B. de
; Franz, Ismael
; Fernandes, Itanna O.
; Golfetti, Ivan F.
; S. Campos-Filho, Ivanklin
; Oliveira, Ivo de S.
; Delabie, Jacques H.C.
; Oliveira, Jader de
; Prando, Jadila S.
; Patton, James L.
; Bitencourt, Jamille de A.
; Silva, Janaina M.
; Santos, Jandir C.
; Arruda, Janine O.
; Valderrama, Jefferson S.
; Dalapicolla, Jeronymo
; Oliveira, Jéssica P.
; Hájek, Jiri
; Morselli, João P.
; Narita, João P.
; Martin, João P.I.
; Grazia, Jocélia
; McHugh, Joe
; Cherem, Jorge J.
; Farias Júnior, José A.S.
; Fernandes, Jose A.M.
; Pacheco, José F.
; Birindelli, José L.O.
; Rezende, José M.
; Avendaño, Jose M.
; Duarte, José M. Barbanti
; Ribeiro, José R. Inácio
; Mermudes, José R.M.
; Pujol-Luz, José R.
; Santos, Josenilson R. dos
; Câmara, Josenir T.
; Teixeira, Joyce A.
; Prado, Joyce R. do
; Botero, Juan P.
; Almeida, Julia C.
; Kohler, Julia
; Gonçalves, Julia P.
; Beneti, Julia S.
; Donahue, Julian P.
; Alvim, Juliana
; Almeida, Juliana C.
; Segadilha, Juliana L.
; Wingert, Juliana M.
; Barbosa, Julianna F.
; Ferrer, Juliano
; Santos, Juliano F. dos
; Kuabara, Kamila M.D.
; Nascimento, Karine B.
; Schoeninger, Karine
; Campião, Karla M.
; Soares, Karla
; Zilch, Kássia
; Barão, Kim R.
; Teixeira, Larissa
; Sousa, Laura D. do N.M. de
; Dumas, Leandro L.
; Vieira, Leandro M.
; Azevedo, Leonardo H.G.
; Carvalho, Leonardo S.
; Souza, Leonardo S. de
; Rocha, Leonardo S.G.
; Bernardi, Leopoldo F.O.
; Vieira, Letícia M.
; Johann, Liana
; Salvatierra, Lidianne
; Oliveira, Livia de M.
; Loureiro, Lourdes M.A. El-moor
; Barreto, Luana B.
; Barros, Luana M.
; Lecci, Lucas
; Camargos, Lucas M. de
; Lima, Lucas R.C.
; Almeida, Lucia M.
; Martins, Luciana R.
; Marinoni, Luciane
; Moura, Luciano de A.
; Lima, Luciano
; Naka, Luciano N.
; Miranda, Lucília S.
; Salik, Lucy M.
; Bezerra, Luis E.A.
; Silveira, Luis F.
; Campos, Luiz A.
; Castro, Luiz A.S. de
; Pinho, Luiz C.
; Silveira, Luiz F.L.
; Iniesta, Luiz F.M.
; Tencatt, Luiz F.C.
; Simone, Luiz R.L.
; Malabarba, Luiz R.
; Cruz, Luiza S. da
; Sekerka, Lukas
; Barros, Lurdiana D.
; Santos, Luziany Q.
; Skoracki, Maciej
; Correia, Maira A.
; Uchoa, Manoel A.
; Andrade, Manuella F.G.
; Hermes, Marcel G.
; Miranda, Marcel S.
; Araújo, Marcel S. de
; Monné, Marcela L.
; Labruna, Marcelo B.
; Santis, Marcelo D. de
; Duarte, Marcelo
; Knoff, Marcelo
; Nogueira, Marcelo
; Britto, Marcelo R. de
; Melo, Marcelo R.S. de
; Carvalho, Marcelo R. de
; Tavares, Marcelo T.
; Kitahara, Marcelo V.
; Justo, Marcia C.N.
; Botelho, Marcia J.C.
; Couri, Márcia S.
; Borges-Martins, Márcio
; Felix, Márcio
; Oliveira, Marcio L. de
; Bologna, Marco A.
; Gottschalk, Marco S.
; Tavares, Marcos D.S.
; Lhano, Marcos G.
; Bevilaqua, Marcus
; Santos, Marcus T.T.
; Domingues, Marcus V.
; Sallum, Maria A.M.
; Digiani, María C.
; Santarém, Maria C.A.
; Nascimento, Maria C. do
; Becerril, María de los A.M.
; Santos, Maria E.A. dos
; Passos, Maria I. da S. dos
; Felippe-Bauer, Maria L.
; Cherman, Mariana A.
; Terossi, Mariana
; Bartz, Marie L.C.
; Barbosa, Marina F. de C.
; Loeb, Marina V.
; Cohn-Haft, Mario
; Cupello, Mario
; Martins, Marlúcia B.
; Christofersen, Martin L.
; Bento, Matheus
; Rocha, Matheus dos S.
; Martins, Maurício L.
; Segura, Melissa O.
; Cardenas, Melissa Q.
; Duarte, Mércia E.
; Ivie, Michael A.
; Mincarone, Michael M.
; Borges, Michela
; Monné, Miguel A.
; Casagrande, Mirna M.
; Fernandez, Monica A.
; Piovesan, Mônica
; Menezes, Naércio A.
; Benaim, Natalia P.
; Reategui, Natália S.
; Pedro, Natan C.
; Pecly, Nathalia H.
; Ferreira Júnior, Nelson
; Silva Júnior, Nelson J. da
; Perioto, Nelson W.
; Hamada, Neusa
; Degallier, Nicolas
; Chao, Ning L.
; Ferla, Noeli J.
; Mielke, Olaf H.H.
; Evangelista, Olivia
; Shibatta, Oscar A.
; Oliveira, Otto M.P.
; Albornoz, Pablo C.L.
; Dellapé, Pablo M.
; Gonçalves, Pablo R.
; Shimabukuro, Paloma H.F.
; Grossi, Paschoal
; Rodrigues, Patrícia E. da S.
; Lima, Patricia O.V.
; Velazco, Paul
; Santos, Paula B. dos
; Araújo, Paula B.
; Silva, Paula K.R.
; Riccardi, Paula R.
; Garcia, Paulo C. de A.
; Passos, Paulo G.H.
; Corgosinho, Paulo H.C.
; Lucinda, Paulo
; Costa, Paulo M.S.
; Alves, Paulo P.
; Roth, Paulo R. de O.
; Coelho, Paulo R.S.
; Duarte, Paulo R.M.
; Carvalho, Pedro F. de
; Gnaspini, Pedro
; Souza-Dias, Pedro G.B.
; Linardi, Pedro M.
; Bartholomay, Pedro R.
; Demite, Peterson R.
; Bulirsch, Petr
; Boll, Piter K.
; Pereira, Rachel M.M.
; Silva, Rafael A.P.F.
; Moura, Rafael B. de
; Boldrini, Rafael
; Silva, Rafaela A. da
; Falaschi, Rafaela L.
; Cordeiro, Ralf T.S.
; Mello, Ramon J.C.L.
; Singer, Randal A.
; Querino, Ranyse B.
; Heleodoro, Raphael A.
; Castilho, Raphael de C.
; Constantino, Reginaldo
; Guedes, Reinaldo C.
; Carrenho, Renan
; Gomes, Renata S.
; Gregorin, Renato
; Machado, Renato J.P.
; Bérnils, Renato S.
; Capellari, Renato S.
; Silva, Ricardo B.
; Kawada, Ricardo
; Dias, Ricardo M.
; Siewert, Ricardo
; Brugnera, Ricaro
; Leschen, Richard A.B.
; Constantin, Robert
; Robbins, Robert
; Pinto, Roberta R.
; Reis, Roberto E. dos
; Ramos, Robson T. da C.
; Cavichioli, Rodney R.
; Barros, Rodolfo C. de
; Caires, Rodrigo A.
; Salvador, Rodrigo B.
; Marques, Rodrigo C.
; Araújo, Rodrigo C.
; Araujo, Rodrigo de O.
; Dios, Rodrigo de V.P.
; Johnsson, Rodrigo
; Feitosa, Rodrigo M.
; Hutchings, Roger W.
; Lara, Rogéria I.R.
; Rossi, Rogério V.
; Gerstmeier, Roland
; Ochoa, Ronald
; Hutchings, Rosa S.G.
; Ale-Rocha, Rosaly
; Rocha, Rosana M. da
; Tidon, Rosana
; Brito, Rosangela
; Pellens, Roseli
; Santos, Sabrina R. dos
; Santos, Sandra D. dos
; Paiva, Sandra V.
; Santos, Sandro
; Oliveira, Sarah S. de
; Costa, Sávio C.
; Gardner, Scott L.
; Leal, Sebastián A. Muñoz
; Aloquio, Sergio
; Bonecker, Sergio L.C.
; Bueno, Sergio L. de S.
; Almeida, Sérgio M. de
; Stampar, Sérgio N.
; Andena, Sérgio R.
; Posso, Sergio R.
; Lima, Sheila P.
; Gadelha, Sian de S.
; Thiengo, Silvana C.
; Cohen, Simone C.
; Brandão, Simone N.
; Rosa, Simone P.
; Ribeiro, Síria L.B.
; Letana, Sócrates D.
; Santos, Sonia B. dos
; Andrade, Sonia C.S.
; Dávila, Stephane
; Vaz, Stéphanie
; Peck, Stewart B.
; Christo, Susete W.
; Cunha, Suzan B.Z.
; Gomes, Suzete R.
; Duarte, Tácio
; Madeira-Ott, Taís
; Marques, Taísa
; Roell, Talita
; Lima, Tarcilla C. de
; Sepulveda, Tatiana A.
; Maria, Tatiana F.
; Ruschel, Tatiana P.
; Rodrigues, Thaiana
; Marinho, Thais A.
; Almeida, Thaís M. de
; Miranda, Thaís P.
; Freitas, Thales R.O.
; Pereira, Thalles P.L.
; Zacca, Thamara
; Pacheco, Thaynara L.
; Martins, Thiago F.
; Alvarenga, Thiago M.
; Carvalho, Thiago R. de
; Polizei, Thiago T.S.
; McElrath, Thomas C.
; Henry, Thomas
; Pikart, Tiago G.
; Porto, Tiago J.
; Krolow, Tiago K.
; Carvalho, Tiago P.
; Lotufo, Tito M. da C.
; Caramaschi, Ulisses
; Pinheiro, Ulisses dos S.
; Pardiñas, Ulyses F.J.
; Maia, Valéria C.
; Tavares, Valeria
; Costa, Valmir A.
; Amaral, Vanessa S. do
; Silva, Vera C.
; Wolff, Vera R. dos S.
; Slobodian, Verônica
; Silva, Vinícius B. da
; Espíndola, Vinicius C.
; Costa-Silva, Vinicius da
; Bertaco, Vinicius de A.
; Padula, Vinícius
; Ferreira, Vinicius S.
; Silva, Vitor C.P. da
; Piacentini, Vítor de Q.
; Sandoval-Gómez, Vivian E.
; Trevine, Vivian
; Sousa, Viviane R.
; Sant’Anna, Vivianne B. de
; Mathis, Wayne N.
; Souza, Wesley de O.
; Colombo, Wesley D.
; Tomaszewska, Wioletta
; Wosiacki, Wolmar B.
; Ovando, Ximena M.C.
; Leite, Yuri L.R.
.
ABSTRACT The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian megadiverse fauna is no exception, and the Catálogo Taxonômico da Fauna do Brasil (CTFB) (http://fauna.jbrj.gov.br/), made public in 2015, represents a database on biodiversity anchored on a list of valid and expertly recognized scientific names of animals in Brazil. The CTFB is updated in near real time by a team of more than 800 specialists. By January 1, 2024, the CTFB compiled 133,691 nominal species, with 125,138 that were considered valid. Most of the valid species were arthropods (82.3%, with more than 102,000 species) and chordates (7.69%, with over 11,000 species). These taxa were followed by a cluster composed of Mollusca (3,567 species), Platyhelminthes (2,292 species), Annelida (1,833 species), and Nematoda (1,447 species). All remaining groups had less than 1,000 species reported in Brazil, with Cnidaria (831 species), Porifera (628 species), Rotifera (606 species), and Bryozoa (520 species) representing those with more than 500 species. Analysis of the CTFB database can facilitate and direct efforts towards the discovery of new species in Brazil, but it is also fundamental in providing the best available list of valid nominal species to users, including those in science, health, conservation efforts, and any initiative involving animals. The importance of the CTFB is evidenced by the elevated number of citations in the scientific literature in diverse areas of biology, law, anthropology, education, forensic science, and veterinary science, among others. publications problem uptodate up date classifications context exception (CTFB http//fauna.jbrj.gov.br/, httpfaunajbrjgovbr http //fauna.jbrj.gov.br/ , jbrj gov br (http://fauna.jbrj.gov.br/) 2015 Brazil 80 specialists 1 2024 133691 133 691 133,69 125138 125 138 125,13 82.3%, 823 82 3 (82.3% 102000 102 000 102,00 7.69%, 769 7 69 (7.69% 11000 11 11,00 . 3,567 3567 567 (3,56 2,292 2292 2 292 (2,29 1,833 1833 833 (1,83 1,447 1447 447 (1,44 1000 1,00 831 (83 628 (62 606 (60 520 (52 50 users science health biology law anthropology education others http//fauna.jbrj.gov.br/ faunajbrjgovbr //fauna.jbrj.gov.br (http://fauna.jbrj.gov.br/ 201 8 202 13369 13 133,6 12513 12 125,1 82.3% (82.3 10200 10 00 102,0 7.69% 76 6 (7.69 1100 11,0 3,56 356 56 (3,5 2,29 229 29 (2,2 1,83 183 83 (1,8 1,44 144 44 (1,4 100 1,0 (8 62 (6 60 52 (5 5 http//fauna.jbrj.gov.br (http://fauna.jbrj.gov.br 20 1336 133, 1251 125, 82.3 (82. 1020 0 102, 7.69 (7.6 110 11, 3,5 35 (3, 2,2 22 (2, 1,8 18 (1, 1,4 14 4 ( 82. (82 7.6 (7. 3, (3 2, (2 (1 7. (7
4.
SURVIVAL MECHANISMS OF Fusarium oxysporum f. sp. passiflorae ARE AFFECTED BY APPLICATION OF CABBAGE AND CASSAVA DEBRIS
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VIEIRA, JOYSE BRITO
; ROCHA, LEANDRO DE SOUZA
; SILVA, HARLLEN SANDRO ALVES
; LARANJEIRA, FRANCISCO FERRAZ
.
RESUMO A murcha de Fusarium causada pelo fungo Fusarium oxysporum f. sp. passiflorae (Fop) é a principal doença de origem fúngica da cultura do maracujazeiro. Os clamidósporos, estruturas de resistência produzidas por Fop, permitem a sua sobrevivência no solo por vários anos, além de possuir atividade saprofítica. Dentre os métodos de manejo, a biofumigação por incorporação de repolho e mandioca brava tem-se apresentado como uma alternativa viável no controle de patógenos veiculados pelo solo. O objetivo desse trabalho foi avaliar a influência de diferentes debris (restos vegetais) na fase de sobrevivência de Fop em condições de laboratório. Foram realizados testes in vitro com incorporação de folhas dos materiais vegetais maracujá amarelo, repolho, mandioca brava e mandioca mansa em substratos infestados com diferentes isolados de Fop. Foram avaliados o crescimento micelial e a produção e germinação de clamidósporos. A incorporação dos debris de repolho e mandioca brava teve efeito fungistático sobre Fop, com redução no crescimento micelial e produção de clamidósporos. A incorporação de repolho ao substrato inibiu totalmente a germinação de clamidósporos em 78% dos isolados avaliados e reduziu o percentual de germinação dos demais.
ABSTRACT Fusarium wilt, caused by the fungus Fusarium oxysporum f. sp. passiflorae (Fop) is the main fungal disease in passion fruit crops. Chlamydospores, which are structures of resistance produced by Fop, allow the fungus survival in the soil for several years and have saprophytic activity. Biofumigation with incorporation of cabbage and bitter cassava has been a viable alternative, among management methods, for the control of soil pathogens. The objective of this work was to evaluate the effect of different plant debris (plant residues) on survival of Fop under laboratory conditions. In vitro tests were carried out with incorporation of leaves of yellow passion fruit, cabbage, bitter cassava, and sweet cassava plants into substrates infested with different Fop isolates. Mycelial growth and chlamydospore production and germination were evaluated. The incorporation of cabbage and bitter cassava debris had a fungistatic effect on Fop, with decreases in mycelial growth and chlamydospore production. The incorporation of cabbage into the substrate totally inhibited the chlamydospore germination in 78% of the evaluated isolates and decreased the germination percentage in the others.
5.
Use and misuse of biomarkers and the role of D-dimer and C-reactive protein in the management of COVID-19: A post-hoc analysis of a prospective cohort study
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Gonçalves, Fabio Augusto Rodrigues
; Besen, Bruno Adler Maccagnan Pinheiro
; Lima, Clarice Antunes de
; Corá, Aline Pivetta
; Pereira, Antônio José Rodrigues
; Perazzio, Sandro Félix
; Gouvea, Christiane Pereira
; Fonseca, Luiz Augusto Marcondes
; Trindade, Evelinda Marramon
; Sumita, Nairo Massakazu
; Duarte, Alberto José da Silva
; Lichtenstein, Arnaldo
; Bonfa, Eloisa
; Utiyama, Edivaldo M.
; Segurado, Aluisio C.
; Perondi, Beatriz
; Miethke-Morais, Anna
; Montal, Amanda C.
; Harima, Leila
; Fusco, Solange R. G.
; Silva, Marjorie F.
; Rocha, Marcelo C.
; Marcilio, Izabel
; Rios, Izabel Cristina
; Kawano, Fabiane Yumi Ogihara
; Jesus, Maria Amélia de
; Kallas, Ésper George
; Carmo, Carolina
; Tanaka, Clarice
; Souza, Heraldo Possolo de
; Marchini, Julio F. M.
; Carvalho, Carlos
; Ferreira, Juliana C.
; Levin, Anna Sara Shafferman
; Oliveira, Maura Salaroli
; Guimarães, Thaís
; Lázari, Carolina dos Santos
; Sabino, Ester
; Magri, Marcello M. C.
; Barros-Filho, Tarcisio E. P.
; Francisco, Maria Cristina Peres Braido
; Costa, Silvia F.
.
OBJECTIVE: Coronavirus disease 2019 (COVID-19) is associated with high mortality among hospitalized patients and incurs high costs. Severe acute respiratory syndrome coronavirus 2 infection can trigger both inflammatory and thrombotic processes, and these complications can lead to a poorer prognosis. This study aimed to evaluate the association and temporal trends of D-dimer and C-reactive protein (CRP) levels with the incidence of venous thromboembolism (VTE), hospital mortality, and costs among inpatients with COVID-19. METHODS: Data were extracted from electronic patient records and laboratory databases. Crude and adjusted associations for age, sex, number of comorbidities, Sequential Organ Failure Assessment score at admission, and D-dimer or CRP logistic regression models were used to evaluate associations. RESULTS: Between March and June 2020, COVID-19 was documented in 3,254 inpatients. The D-dimer level ≥4,000 ng/mL fibrinogen equivalent unit (FEU) mortality odds ratio (OR) was 4.48 (adjusted OR: 1.97). The CRP level ≥220 mg/dL OR for death was 7.73 (adjusted OR: 3.93). The D-dimer level ≥4,000 ng/mL FEU VTE OR was 3.96 (adjusted OR: 3.26). The CRP level ≥220 mg/dL OR for VTE was 2.71 (adjusted OR: 1.92). All these analyses were statistically significant (p<0.001). Stratified hospital costs demonstrated a dose-response pattern. Adjusted D-dimer and CRP levels were associated with higher mortality and doubled hospital costs. In the first week, elevated D-dimer levels predicted VTE occurrence and systemic inflammatory harm, while CRP was a hospital mortality predictor. CONCLUSION: D-dimer and CRP levels were associated with higher hospital mortality and a higher incidence of VTE. D-dimer was more strongly associated with VTE, although its discriminative ability was poor, while CRP was a stronger predictor of hospital mortality. Their use outside the usual indications should not be modified and should be discouraged.
6.
Application of LC-DAD Metabolic Fingerprinting in Combination with PCA for Evaluation of Seasonality and Extraction Method on the Chemical Composition of Accessions from Lippia alba (Mill) N. E. Brown and Biological Activities
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Jesus, Raphael A. de
; Prado, Vilma M. J.
; Pinto, Vanderson S.
; Silva, Valdenizia R.
; Santos, Luciano S.
; Nogueira, Paulo C. L.
; Navickiene, Sandro
; Pereira-Filho, Edenir R.
; Blank, Arie F.
; Bezerra, Daniel P.
; Soares, Milena B. P.
; Seidl, Claudia
; Cardoso, Carmen L.
; Moraes, Valéria R. S.
.
Journal of the Brazilian Chemical Society
- Métricas do periódico
The methodology developed in this study through the acquisition of fingerprint chromatograms by liquid chromatography-diode array detector (LC-DAD), aided by principal component analysis, made it possible to assess, in a rational way, the chemical differences between six accessions of Lippia alba and to verify the influence of the method of extraction, the seasonality and the individuality of each accession on chemical composition of its extracts. Among all extracts analyzed against cancer cell lines, eight of them showed to be more promising against a human leukemia cell line (HL-60), displaying cell growth inhibition percentage ranging between 40.0 and 52.0%. In the inhibitory activity assays against acetylcholinesterase enzyme, all extracts showed weak inhibitory effect, with highlight only for six of them, which displayed inhibition ranging between 27.0 and 32.0%.
https://doi.org/10.21577/0103-5053.20180244
666 downloads
7.
Dantrolene e células-tronco mesenquimais promovem melhora funcional em ratos Wistar com trauma espinhal agudo
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Torres, Bruno B.J.
; Martins, Bernardo C.
; Silva, Carla Maria O.
; Lavor, Mário Sérgio L.
; Coelho, Sandro
; Siano, Gabriela F.
; Melo, Eliane G.
.
RESUMO: Objetivou-se avaliar o efeito do dantrolene (DAN) e das células-tronco mesenquimais (CTM) no trauma espinhal agudo (TEA). Sessenta ratos Wistar foram divididos nos grupos CTM, DAN + CTM, DAN, trauma e placebo (TP) e sem trauma e placebo (STP). Realizou-se laminectomia de T12 em todos os grupos, seguida de TEA contusivo ∕ compressivo, com exceção do grupo STP. Uma hora depois, os grupos DAN + CTM e DAN receberam 10mg/kg de DAN. Após sete dias os grupos CTM e DAN + CTM receberam 1x106 células, por via intravenosa. Testes comportamentais foram realizados para avaliar a recuperação funcional durante 28 dias. Os animais traumatizados apresentaram paraplegia. Houve melhora funcional significativa nos grupos tratados com CTM, DAN ou associação DAN + CTM em comparação ao grupo TP (p<0,05). Conclui-se que o DAN e as CTM para tratamento de TEA em ratos apresentam efeitos neuroprotetores e promovem melhora neurológica funcional.
ABSTRACT: This study aimed to evaluate the effects of dantrolene (DAN) and mesenchymal stem cells (MSCs) in acute spinal cord injury (SCI). Sixty Wistar rats were divided into groups MSCs, MSCs + DAN, DAN, trauma and placebo (TP) and no trauma and placebo (STP). Laminectomy was performed at T12 level in all animals, followed by a weight-drop model of SCI, except for the STP group. An hour later, the MSCs + DAN and DAN groups received 10mg/kg of DAN. After seven days, the MSCs and MSCs + DAN groups received 1x106 cells intravenously. Behavioral tests were performed to assess functional recovery for 28 days. Traumatized animals showed paraplegia. There was a significant improvement in groups MSCs, DAN and MSCs + DAN compared to TP (p<0.05). It was concluded that DAN and MSCs for the treatment of SCI in rats have neuroprotection effect and promote functional neurological improvement.
https://doi.org/10.1590/1678-5150-pvb-5165
771 downloads
8.
Artificial intelligence in seeding density optimization and yield simulation for oat
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Dornelles, Eldair F.
; Kraisig, Adriana R.
; Silva, José A. G. da
; Sawicki, Sandro
; Roos-Frantz, Fabricia
; Carbonera, Roberto
.
Revista Brasileira de Engenharia Agrícola e Ambiental
- Métricas do periódico
RESUMO O uso de inteligência artificial pode representar uma estratégia eficiente de simulação e otimização de processos importantes na agricultura. O objetivo deste estudo é propor o uso de inteligência artificial via redes neurais artificiais e algoritmos genéticos, respectivamente, na simulação da produtividade de grãos de aveia (Avena sativa) e na otimização da densidade de semeadura, nos principais sistemas de sucessão do sul do Brasil. O estudo foi conduzido em blocos ao acaso com quatro repetições em esquema fatorial 4 x 2, para as densidades de semeadura (100, 300, 600 e 900 sementes m-2) e cultivares de aveia (Brisasul e URS Taura), nos sistemas de sucessão milho/aveia e soja/aveia. Implementou-se uma rede neural artificial de múltiplas camadas e um algoritmo genético, em linguagem de programação Java, e comparou-se os resultados obtidos desta implementação com análises tradicionais de regressão polinomial. O uso de inteligência artificial via redes neurais artificiais e algoritmos genéticos permite simular com eficiência a produtividade de grãos de aveia e melhor otimização da densidade de semeadura na comparação com regressão polinomial, considerando os principais sistemas de sucessão no sul do Brasil.
ABSTRACT Artificial intelligence may represent an efficient strategy for simulation and optimization of important processes in agriculture. The main goal of the study is to propose the use of artificial intelligence, namely artificial neural networks and genetic algorithms, respectively, in the simulation of oat grain yield and optimization of seeding density, considering the main succession systems of southern Brazil. The study was conducted in a randomized complete block design with four replicates, following a 4 x 2 factorial scheme, for seeding densities (100, 300, 600 and 900 seeds m-2) and oat cultivars (Brisasul and URS Taura), in succession systems of corn/oats and soybean/oats. A multi-layered artificial neural network and a genetic algorithm were implemented in Java programming language, and the results obtained from this implementation were compared with traditional polynomial regression. The use of artificial intelligence through neural networks and genetic algorithms allows the efficient simulation of oat grain yield and better optimization of seeding density in comparison to polynomial regression, considering the main succession systems in southern Brazil.
https://doi.org/10.1590/1807-1929/agriambi.v22n3p183-188
2568 downloads
9.
Activity of rhizobacteria antagonistic to Fusarium oxysporum f. sp. passiflorae in soils cultivated with monocotyledonous plants1
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Santos, Lucila Oliveira
; Macamo, Elina Isaque Delane
; Haddad, Fernando
; Silva, Harllen Sandro Alves
.
RESUMO Apesar da importância da passicultura no Brasil, essa atividade foi forçada a ser itinerante, devido à ocorrência de doenças nas regiões produtoras, em particular a fusariose. O uso de rizobactérias é uma alternativa de controle potencial, mas outras ações são necessárias para garantir a atividade dessas bactérias no campo. Objetivou-se avaliar a influência de três culturas monocotiledônicas sobre a atividade de rizobactérias antagonistas a Fusarium oxysporum f. sp. passiflorae (Fop). As rizobactérias foram isoladas de maracujazeiro e testadas para a produção de compostos difusíveis e voláteis, bem como quitinases que inibem Fop. De um total de 167 isolados, dois produziram compostos voláteis, 21 compostos difusíveis e 32 quitinases. Três combinações compatíveis de isolados que possuíam pelo menos dois mecanismos de ação contra Fop, e podiam crescer em ampla faixa de pH, foram aplicadas em vasos com sorgo, milho ou milheto, além de vasos em pousio (controle), em casa-de-vegetação. Avaliaram-se o carbono da biomassa microbiana, respiração basal do solo, quociente metabólico e atividade da enzima fosfatase ácida. A interação entre as espécies cultivadas e as combinações de rizobactérias foi significativa apenas para o quociente metabólico, cujos valores tendem a ser superiores no cultivo de milheto na combinação 3 (R77/R95/R104/R120), a mais diversificada metabolicamente. A mais alta atividade de fosfatase ácida também foi obtida com milheto. Os resultados relativos à atividade enzimática e quociente metabólico indicam que o milheto proporciona maior atividade dos antagonistas no solo.
ABSTRACT In spite of the importance of passion fruit cultivation in Brazil, this activity has been forced to be itinerant, due to the occurrence of diseases in producing regions, in particular fusariosis. The use of rhizobacteria is a potential control alternative, but other improvements are necessary to guarantee the activity of these bacteria in the field. This study aimed at evaluating the influence of three monocotyledonous groups on the activity of rhizobacteria antagonistic to Fusarium oxysporum f. sp. passiflorae (Fop). Rhizobacteria were isolated from passion fruit plants and tested for the production of diffusible and volatile compounds, as well as chitinases that inhibit Fop. From a total of 167 isolates, two produced volatile compounds, 21 diffusible compounds and 32 chitinases. Three compatible combinations of isolates that had at least two action mechanisms against Fop and could grow in a wide pH range were applied in pots with sorghum, millet or maize, in addition to pots left fallow (control), in a greenhouse. The microbial biomass carbon, soil basal respiration, metabolic quotient and activity of the acid phosphatase enzyme were evaluated. The interaction between the cultivated species and rhizobacterial combinations was significant only for the metabolic quotient, whose values tended to be higher under millet cultivation in combination 3 (R77/R95/R104/R120), the most metabolically diversified one. The highest activity of acid phosphatase was also obtained with millet. The results for enzymatic activity and metabolic quotient indicate that millet provides a greater activity of the antagonists in the soil.
https://doi.org/10.1590/1983-40632017v4749752
773 downloads
10.
Richness and density of aquatic benthic macroinvertebrates after exposure to fungicides and insecticides in rice paddy fields
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WANDSCHEER, ALANA C.D.
; MARCHESAN, ENIO
; SANTOS, SANDRO
; ZANELLA, RENATO
; SILVA, MARÍLIA F.
; LONDERO, GUILHERME P.
; DONATO, GABRIEL
.
Anais da Academia Brasileira de Ciências
- Métricas do periódico
ABSTRACT The objective of this study was to verify the richness and density of aquatic benthic macroinvertebrates after exposure to fungicides and insecticides of the rice paddy fields. In the crop seasons of 2012/13 and 2013/14, field experiments were performed, which consisted of single-dose applications of the fungicides trifloxystrobin + tebuconazole and tricyclazole, and the insecticides lambda-cyhalothrin + thiamethoxam and diflubenzuron, in 10 m2 experimental plots, over rice plants in the R3 stage. Control plots with and without rice plants were maintained in order to simulate a natural environment. Soil samples were collected during rice cultivation for assessment of the macroinvertebrate fauna. Chemical-physical parameters assessed in the experiments included temperature, pH and oxygen dissolved in the water and pesticide persistence in the water and in the soil. The application of a single dose of the pesticides and fungicides in the recommended period does not cause significant negative effects over the richness and density of the macroinvertebrates. Tebuconazole, tricyclazole and thiamethoxam showed high persistence in the irrigation water of rice paddy fields. Thus, the doses and number of applications of these products in crops should be carefully handled in order to avoid contamination of the environment.
https://doi.org/10.1590/0001-3765201720160574
1920 downloads
11.
Rapeseed population arrangement defined by adaptability and stability parameters
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Krüger, Cleusa A. M. B.
; Medeiros, Sandro L. P.
; Silva, José A. G. da
; Dalmago, Genei A.
; Valentini, Ana P. F.
; Wagner, Juliano F.
.
Revista Brasileira de Engenharia Agrícola e Ambiental
- Métricas do periódico
RESUMO Propôs-se, com este trabalho, identificar o arranjo de plantas que possibilite maior produtividade de grãos com adaptabilidade e estabilidade em híbridos de canola. Os experimentos foram desenvolvidos em blocos ao acaso com quatro repetições nos 12 tratamentos da combinação entre o espaçamento entre linhas (0,20, 0,40, 0,60 m) e a densidade de plantas (20, 40, 60 e 80 plantas m-2). Foram cultivados os híbridos Hyola 432 - ciclo precoce e Hyola 61 - ciclo médio, em três safras agrícolas (2008, 2009 e 2010). Foi avaliada a produtividade de grãos pelos parâmetros de adaptabilidade e estabilidade pelo modelo de Wricke e de Eberhart e Russell. O arranjo de plantas para a obtenção de maior produtividade de grãos depende do genótipo cultivado. A produtividade de grãos para o Hyola 432 foi maior nos arranjos de plantas de 0,20 m x 60 e 0,40 m x 60 plantas m-2 e para o Hyola 61 no arranjo de 0,20 m x 60 plantas m-2, nos três anos de avaliação. No espaçamento entre linhas de 0,40 m e densidade de 40 e 60 plantas m-2 o Hyola 432 evidencia alta produtividade, adaptabilidade a ambientes amplos e estabilidade. No Hyola 61 a alta produtividade com adaptabilidade geral foi obtida no espaçamento entre linhas de 0,40 m com 60 plantas m-2.
ABSTRACT The objective of this study was to identify the plant arrangement that allows greater grain yield with adaptability and stability of rapeseed hybrids. The experiments were conducted in randomized block design with four replicates and the 12 treatments consisted of combination of inter-row spacings (0.20, 0.40, and 0.60 m) and plant densities (20, 40, 60 and 80 plants m-2). The hybrids Hyola 432 (early cycle) and Hyola 61 (medium cycle) were cultivated in three growing seasons (2008, 2009 and 2010). Grain yield was evaluated based on the parameters adaptability and stability according to the models of Wricke and Eberhart & Russell. The plant arrangement for obtaining higher grain yield depends on the cultivated genotype. Higher grain yield was obtained in the arrangements of 0.20 m x 60 and 0.40 m x 60 plants m-2 for Hyola 432, and in 0.20 m x 60 plants m-2 for Hyola 61, in the three years of evaluation. In the inter-row spacing of 0.40 m and densities of 40 and 60 plants m-2, Hyola 432 shows high yield, adaptability to wide environments and stability. For Hyola 61, high productivity with overall adaptability was obtained in the inter-row spacing of 0.40 m, with 60 plants m-2.
https://doi.org/10.1590/1807-1929/agriambi.v20n1p36-41
1100 downloads
12.
TREATMENT OF WASTE FROM ATOMIC EMISSION SPECTROMETRIC TECHNIQUES AND REUSE IN UNDERGRADUATE LAB CLASSES FOR QUALITATIVE ANALYSIS
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Silva, Francisco L. F. da
; Duarte, Thalita O. A.
; Dantas, Allan N. S.
; Lopes, Gisele S.
; Gouveia, Sandro T.
; Matos, Wladiana O.
.
Flame atomic absorption spectrometry (FAAS) and inductively coupled plasma optical emission spectrometry (ICP OES) are widely used in academic institutions and laboratories for quality control to analyze inorganic elements in samples. However, these techniques have been observed to underperform in sample nebulization processes. Most of the samples processed through nebulization system are discarded, producing large volumes of waste. This study reports the treatment and reuse of the waste produced from ICP OES technique in a laboratory of analytical research at the Universidade Federal do Ceará, Brazil. The treatment of the waste was performed by the precipitation of elements using (NH4)2CO3. Subsequently, the supernatant solution can be discarded in accordance with CONAMA 430/2011. The precipitate produced from the treatment of residues can be reused as a potential sample in undergraduate qualitative analytical chemistry lab classes, providing students the opportunity to test a real sample.
https://doi.org/10.5935/0100-4042.20150142
1490 downloads
13.
A terra dos coronéis no Oeste do Brasil: A cattle frontier, violência e dominação fundiária no Cerrado goiano
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As questões fundiárias do Oeste do Brasil foram marcadas pela dominação e violência na história da ocupação da fronteira. Diferente do texto clássico de F. J. Turner em que a disponibilidade de terras livres na fronteira motivou, não apenas a ocupação do Oeste mas também foi elemento fundamental para a construção da identidade americana (individualismo e democracia), este artigo apresenta as características de isolamento, pobreza estrutural e violência, que marcaram a fronteira no Meio-Oeste brasileiro. Assim, baseados na Western History e no conceito clássico de fronteira, bem como nas apropriações desse conceito pela historiografia brasileira, propomos identificar, por meio da análise documental e em fontes secundárias o estudo da relação entre sociedade, história e natureza na fronteira goiana, com ênfase na cattle frontier e na dominação fundiária que marcou a região entre a segunda metade do século XIX e a primeira metade do século XX.
Land issues in Western Brazil were marked by domination and violence during the history of the frontier's occupation. Unlike the classic text of F. J. Turner, where the availability of free land in the frontier motivated not only the occupation of the West, but also represented a key element for the construction of the North-American identity (individualism and democracy), this paper presents the characteristics of isolation, structural poverty and violence that marked the Brazilian Midwest frontier. Thus, based on Western History and on the classical concept of frontier, as well as its appropriations by the Brazilian historiography, we propose to study, through documentary analysis and secondary sources, the relationship between society, history and nature in the Goiás frontier, with emphasis on the cattle frontier and land dominance that marked the region between the second half of the nineteenth century and the first half of the twentieth century.
https://doi.org/10.1590/2237-101X016030009
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14.
Chemical Composition and Cytotoxic Activity of the Root Essential Oil from Jatropha ribifolia (Pohl) Baill (Euphorbiaceae)
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Silva, Celia E. L. da
; Minguzzi, Sandro
; Silva, Rogério C. L. da
; Matos, Maria F. C.
; Tofoli, Danilo
; Carvalho, João E. de
; Ruiz, Ana L. T. G.
; Costa, Willian F. da
; Simionatto, Euclésio
.
Journal of the Brazilian Chemical Society
- Métricas do periódico
The essential oil of roots of Jatropha ribifolia, obtained by hydrodistillation, was characterized in terms of its chemical composition by chromatographic method with flame ionization detection (GC-FID) and gas chromatography coupled to electron ionization mass spectrometry (GC-MS). The analyses and identification pointed by mass fragmentation pattern and retention index revealed the presence of 49 compounds, representing 91.4% of the total oil, with 39.5% of monoterpenes, 43.0% of sesquiterpenes and 8.5% of phenylpropanoids. The major compounds of the oil were β-pinene (9.2%), isoeugenol methyl ether (8.5%), vatirenene (8.4%), α-gurjunene (7.0%), endo-8-hydroxy-cycloisolongifolene (6.6%), α-pinene (6.4%) and p-menth-1-en-8-ol (5.2%). The fractionation by preparative thin layer chromatography (TLC) allowed obtaining five fractions (F1-F5) with different compound contents from the original oil. Some essential oil components showed a significant increase in their levels after fractionation, as borneol (17.9%, F1), 3-thujopsanone (19.1%, F4), isoeugenol methylether (21.2%, F2), 8-oxo-9H-cycloisolongifolene (21.4%, F4), 8-cis-5(1H)-azulenone,2,4,6,7,8,8a-hexahydro-3,8-dimethyl-4-(1-methylethylidene) (23.1%, F4) e endo-8-hydroxy-cycloisolongifolene (38.6%, F2). These fractions and oil were tested in vitro against nine human cancer cell lines by sulforhodamine B assay. The Jatropha oil was more effective in inhibiting the growth of cells NCI-H460 (drug resistant ovarian; GI50 6.2 µg mL–1) and OVCAR-3 (ovarian; GI508.0 µg mL–1). The cancer cells line PC-3 (prostate) was more sensitive to the effects of the fractions showing significant values of GI50 such as for fraction F1, F2 and F4 (< 0.25 µg mL–1). In general the antiproliferative activity of the fractions was more pronounced than that of crude oil.
https://doi.org/10.5935/0103-5053.20140253
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15.
Análise do teor e da qualidade dos lipídeos presentes em sementes de oleaginosas por rmn de baixo campo
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Constantino, André F.
; Lacerda Jr., Valdemar
; Santos, Reginaldo B. dos
; Greco, Sandro J.
; Silva, Renzo C.
; C. Neto, Álvaro
; Barbosa, Lúcio L.
; Castro, Eustáquio V. R. de
; Freitas, Jair C. C.
.
To choose among the variety of oleaginous plants for biodiesel production, the oil content of several matrices was determined through different low-field ¹H nuclear magnetic resonance (NMR) experiments with varied pulse sequences, namely single-pulse, spin-echo, CPMG, and CWFP. The experiments that involved the first three sequences showed high correlation with each other and with the solvent extraction method. The quality of the vegetable oils was also evaluated on the basis of the existing correlation between the T2 values of the oils and their properties, such as viscosity, iodine index, and cetane index. These analyses were performed using HCA and PCA chemometric tools. The results were sufficiently significant to allow separation of the oleaginous matrices according to their quality. Thus, the low-field ¹H NMR technique was confirmed as an important tool to aid in the selection of oleaginous matrices for biodiesel production.
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