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1.
Periodontal status among 12-year-old schoolchildren: a population-based cross-sectional study in Quito, Ecuador 12yearold yearold 12 year old schoolchildren populationbased population based crosssectional cross sectional Quito 1
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MEDINA-VEGA, Marco
; IBARRA, Mariela Cumandá Balseca
; QUEZADA-CONDE, Maritza Del Carmen
; REIS, Isabella Neme Ribeiro dos
; FRIAS, Antonio Carlos
; RAGGIO, Daniela Prócida
; MICHEL-CROSATO, Edgard
; MENDES, Fausto Medeiros
; PANNUTI, Claudio Mendes
; ROMITO, Giuseppe Alexandre
.
Abstract This study aimed to estimate the prevalence and extent of bleeding on probing and calculus in 12-year-old schoolchildren of Quito, Ecuador, and evaluate the associated factors. We conducted an epidemiological survey with a representative sample of 1,100 12-year-old schoolchildren from public schools in the urban area of Quito, Ecuador. We assessed the periodontal health using the Community Periodontal Index (CPI). The prevalence and extent of the periodontal condition was based on the presence of at least one site with bleeding on probing (BOP), and the presence of dental calculus was also evaluated. We used univariate and multiple multilevel Poisson regression analyses to verify the association between the independent variables and the number of sextants with BOP and calculus. The prevalence of BOP and calculus was 92% and 69.9%, respectively. The adjusted mean of the affected sextants was 4.3 and 2.2 for BOP and calculus, respectively. The mother’s schooling and malocclusion were associated with the number of sextants with bleeding. The mother’s schooling and dental caries experience were associated with calculus. Gingival bleeding and the presence of dental calculus are highly prevalent in 12-year-old schoolchildren from Quito. Gingival bleeding is associated with maternal education and malocclusion, and dental calculus is associated with maternal education and dental caries. 12yearold yearold 12 year old Quito Ecuador factors 1100 1 100 1,10 CPI. CPI . (CPI) BOP, , (BOP) evaluated 92 699 69 9 69.9% respectively 43 4 3 4. 22 2 2. mothers mother s 110 10 1,1 (CPI (BOP 6 69.9 11 1, 69.
2.
O Despertar de Tudo no Brasil. Uma entrevista com David Wengrow Brasil
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3.
Where do we invest money to implement active learning on caries detection? An economic evaluation detection
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VARGAS, Jhandira Daibelis Yampa
; MACHADO, Thais Gomes
; OLIVEIRA, Gabriele
; IMPARATO, José Carlos Pettorossi
; RAGGIO, Daniela Prócida
; MENDES, Fausto Medeiros
; BRAGA, Mariana Minatel
.
Abstract This trial-based economic evaluation aimed to estimate the incremental cost of implementing an active learning strategy (theoretical-practical workshop) to substitute the didactic lecture as the sole method for students training in caries detection. We also provided a budget impact analysis and explored the composition of costs related to the activity. Data from the coordinating centre of a multicentre randomized and controlled study (IuSTC01) was analyzed as the first part of our main economic analysis plan. The perspective of the educational provider (the institution implementing the activity) was considered, and an immediate time horizon was adopted. All used resources were valued in Brazilian Real by adopting a microcosting strategy. Costs for each strategy were estimated and converted into international dollars. The incremental Cost per student and the total cost of implementing the complete teaching strategy for 80 students were calculated. Monte Carlo simulations were used to estimate the uncertainties. The incremental Cost estimated for the workshop implementation would be $7.93 per student (interquartile range (IQR): $7.8–8.1), and the total cost of the teaching activity would be $684 (IQR:672–696). The laboratory training comprised more than 50% of the total amount spent, and a higher percentage of this value was related to human resources costs (72%). Saving 40% of the costs could be expected for the next rounds of activities in the institution, assuming no need for additional preparation of didactic materials and tutor training. A modest incremental cost per student and an acceptable organizational budget impact should be expected for the institution when including active learning training in caries detection for undergraduate students, mainly related to the human resources involved. trialbased trial based theoreticalpractical theoretical practical IuSTC01 IuSTC (IuSTC01 plan considered adopted dollars 8 calculated uncertainties 793 7 93 $7.9 interquartile IQR (IQR) $7.8–8.1, 7881 $7.8–8.1 , 1 $7.8–8.1) 684 $68 IQR672–696. IQR672696 672–696 . 672 696 (IQR:672–696) 50 spent 72%. 72 72% (72%) 40 involved IuSTC0 (IuSTC0 79 9 $7. (IQR 788 $7.8–8. 68 $6 IQR672 IQR672–696 IQR67269 672696 672–69 67 69 (IQR:672–696 5 (72% 4 (IuSTC $7 78 $7.8–8 6 $ IQR67 IQR672–69 IQR6726 67269 672–6 (IQR:672–69 (72 $7.8– IQR6 IQR672–6 6726 672– (IQR:672–6 (7 $7.8 IQR672– (IQR:672– ( (IQR:672 (IQR:67 (IQR:6 (IQR:
4.
Which Dental Procedures Lead to Greater Distress During Children’s Dental Treatment? A Cohort Study Childrens Children s Treatment
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Maia, Haline Cunha de Medeiros
; Moro, Bruna Lorena Pereira
; Acosta, Carolina de Picoli
; Freitas, Raiza Dias
; Vale, Mayume Amorim do
; Crispim, Ana Carla
; Imparato, José Carlos P
; Raggio, Daniela Prócida
; Braga, Mariana Minatel
; Mendes, Fausto Medeiros
.
Pesquisa Brasileira em Odontopediatria e Clínica Integrada
- Journal Metrics
ABSTRACT Objective: To assess children's self-reported distress during dental procedures and investigate risk factors. Material and Methods: A total of 163 children (3–10 years old) were included from a clinical trial on diagnostic strategies for evaluating restorations in primary teeth. Treatment plans were elaborated based on the clinical examination performed at the baseline of the study. Dentists performed 742 dental procedures, and an external evaluator collected children's self-reported distress through the Wong Backer Facial Scale (WBFS) and dentists' opinions about children's behavior during the treatment. Kruskal-Wallis Test was performed to compare the distress and the dentists' perception of the different dental procedures, and multilevel ordered logistic regression analysis was conducted to the evaluate association between explanatory variables and the outcomes. Results: More complex procedures caused more distress in children (p=0.017), with a 5.5 times higher risk than simple operative treatments. Similarly, dentists reported children's worse behavior (p<0.001). Older children (older than 7 years) reported less distress than younger children (OR 0.52; CI 0.30-0.87; p=0.014). Patients reported greater distress in the first consultations, reducing the chance of higher scores by 16% in the next interventions. Conclusion: Children experience higher levels of distress during their first treatment appointments. More complex operative procedures and the child's age below 7 years were risk factors associated with greater distress during dental treatment. Objective childrens s selfreported self Methods 16 3–10 310 3 10 (3–1 old teeth study 74 WBFS (WBFS KruskalWallis Kruskal Wallis outcomes Results p=0.017, p0017 p p=0.017 , 0 017 (p=0.017) 55 5 5. treatments Similarly p<0.001. p0001 p<0.001 . 001 (p<0.001) older OR 0.52 052 52 0.300.87 030087 0.30 0.87 30 87 0.30-0.87 p=0.014. p0014 p=0.014 014 p=0.014) consultations interventions Conclusion appointments childs child 1 3–1 31 (3– p001 p=0.01 01 (p=0.017 p000 p<0.00 00 (p<0.001 0.5 05 300 0.300.8 03008 030 0.3 087 0.8 8 0.30-0.8 3– (3 p00 p=0.0 (p=0.01 p<0.0 (p<0.00 0. 0.300. 0300 03 08 0.30-0. ( p0 p=0. (p=0.0 p<0. (p<0.0 0.300 0.30-0 p=0 (p=0. p<0 (p<0. 0.30- p= (p=0 p< (p<0 (p= (p< (p
5.
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
6.
S100 Proteins and their Implication in the Thalamus: An Integrative Review
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de-Britto, André Moura
; Rúbia, Letícia Gama
; Fernandes Matos, Lanay
; Macson da-Silva, Natanias
; Sousa da-Rocha, Gabriel
; Queiroz de-Aquino, Antônio Carlos
; Pierdoná Guzen, Fausto
; Clebeson de-Oliveira, Lucídio
; Pessoa de-Araújo, Dayane
; Araúj de-Góis-Morais, Paulo Leonardo
; Lopes de Paiva Cavalcanti, José Rodolfo
.
RESUMEN: Las proteínas S100 pertenecen al grupo de proteínas fijadoras de calcio y están presentes en actividades reguladoras fisiológicas intracelulares y extracelulares, como la diferenciación celular, y actúan en procesos patológicos inflamatorios y neoplásicos. Recientemente, sus expresiones en el sistema nervioso han sido ampliamente estudiadas, buscando dilucidar su acción a nivel del tálamo: una estructura del sistema nervioso central que forma parte de importantes circuitos, como el somatosensorial, conductual, de memoria y cognitivo, así como además de ser responsable de la transmisión y regulación de la información a la corteza cerebral. Este artículo es una revisión integradora de la literatura científica, que analizó 12 estudios presentes en Pubmed. El análisis mostró que la relación de las proteínas S100 y el tálamo ha sido descrita en procesos neoplásicos, trastornos mentales, hipoxia, trauma, estrés, infección, enfermedad de Parkinson y epilepsia. En resumen, es posible concluir que esta familia de proteínas es relevante como marcador en procesos de lesión talámica, requiriendo más estudios para comprender mejor su significado clínico, preclínico y su valor pronóstico.
SUMMARY: S100 proteins belong group of calcium-binding proteins and are present in physiological intracellular and extracellular regulatory activities, such as cell differentiation, and act in inflammatory and neoplastic pathological processes. Recently, its expressions in the nervous system have been extensively studied, seeking to elucidate its action at the level of the thalamus: A structure of the central nervous system that is part of important circuits, such as somatosensory, behavioral, memory and cognitive, as well as being responsible for the transmission and regulation of information to the cerebral cortex. This article is an integrative review of scientific literature, which analyzed 12 studies present in Pubmed. The analysis showed that the relationship of S100 proteins and the thalamus has been described in neoplastic processes, mental disorders, hypoxia, trauma, stress, infection, Parkinson's disease and epilepsy. In summary, it is possible to conclude that this protein family is relevant as a marker in processes of thalamic injury, requiring further studies to better understand its clinical, preclinical meanings and its prognostic value.
7.
Changes in the methodology of medical teaching due to the COVID-19 pandemic COVID19 COVID 19 COVID-1 COVID1 1 COVID-
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Nicolini, Alexandre Pedro
; Celestino, Fausto Santana
; Franciozi, Carlos Eduardo da Silveira
; Andreoli, Carlos Vicente
; Mansur, Nacime Salomão Barbachan
.
ABSTRACT Objective To evaluate the perceptions of students and teachers regarding remote teaching modality in comparison with the traditional face-to-face method. Methods In this observational, retrospective, comparative, single-center study, questionnaires containing three major assessment domains were sent to two groups: university professors and undergraduate and graduate students. The first domain collected demographic and general data on the platforms used. The second and third domains contained questions that compared the perception of the quality of information offered by the two systems. Results Between May and September 2020, 162 students and 71 teachers participated in the study. A greater proportion of students demonstrated previous contact with the online method, while professors had presented a greater number of courses. Most participants reported that their expectations regarding the remote teaching method were met (students, 80.3%; teachers, 94.4%). A significant number of students (83.3%) and teachers (88.7%) rated the classes as easier to attend and manage. Despite difficulties, such as concentration retention, most of the participants agree (at least partially) that the format should be maintained. Conclusion The remote teaching methodology, although still incipient in Brazil, has become a reality in light of current health restrictions. Our study demonstrated a high level of overall satisfaction and a high sense of learning from both students and faculty. However, new challenges associated with this system have been identified, such as retention of attention and interference from the external environment. Longitudinal comparative studies that incorporate various aspects of medical education in all cycles are necessary to corroborate the findings of this study. Design Retrospective comparative study, level III evidence. facetoface face observational retrospective singlecenter single center groups used systems 2020 16 7 courses students, (students 80.3% 803 80 3 94.4%. 944 94.4% . 94 4 94.4%) 83.3% 833 83 (83.3% 88.7% 887 88 (88.7% manage difficulties at partially maintained methodology Brazil restrictions faculty However identified environment evidence 202 1 80.3 8 94.4 9 83.3 (83.3 88.7 (88.7 20 80. 94. 83. (83. 88. (88. 2 (83 (88 (8 (
8.
Potential distribution of Amaranthus palmeri under current and future climatic conditions in Brasil and the world
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Ferreira, Sabrina Rodrigues
; Silva, Alexandre Ferreira da
; Silveira, Omar Roberto da
; Santos, José Carlos Barbosa dos
; Batista, Adriene Caldeira
; Araújo, Fausto Henrique Vieira
; Santos, José Barbosa dos
; Silva, Ricardo Siqueira da
.
Abstract Background Amaranthus palmeri is an economically important plant species worldwide. The rapid growth and competitive potential of crops make A. palmeri a major problem. Studies on the dissemination potential of this weed in Brazil and worldwide are necessary to identify the regions with high climatic potential. Similarly, we analyzed the behavior of the species in the face of predicted climate change. Studies of this type can be performed using ecological niche modeling. Objective This work aimed to determine areas with climatic suitability for A. palmeri in the present and future climates in Brazil and globally. Methods We projected the potential distribution of A. palmeri based on the environmental requirements and stress parameters that limit this species in Brazil. Results For the current climate, our model identified regions with favorable climatic suitability for A. palmeri on most continents. The results showed that the suitability of A. palmeri in the Brazilian territory will decrease owing to predicted climate change. The future model highlighted decreases in the suitable northern, northeastern, and midwestern areas. An annual study of the occurrence of A. palmeri using the weekly growth index predicted by the model showed great potential for the species throughout the year, with a decrease in the driest months (July to August), indicating the preference of the species for moist soils. Tropical and subtropical zones are currently experiencing a reduction in suitable areas because of climate change in northeastern Brazil and western Australia. Temperate zone sites have potential areas of expansion for A. palmeri (northern USA, Russia, and China) under climate change. Conclusions Based on the results of this study, management strategies should be planned to contain the global spread of A. palmeri. A problem Similarly modeling globally continents northern year July August, August , August) soils Australia USA Russia China
9.
Dinámica espacio-temporal de la pesquería artesanal en el Golfo de Santa Elena, Pacífico Norte de Costa Rica (2010-2019)
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Farías-Tafolla, Beatriz
; Arias-Zumbado, Fausto
; Chaves-Zamora, Isaac
; Alvarado-Ruiz, Carlos
; Espinoza, Mario
.
Resumen Introducción: El Pacífico Norte de Costa Rica es una región diversa y productiva; sin embargo, tenemos un escaso conocimiento sobre el estado de los recursos marinos y la dinámica pesquera, particularmente de la pesca artesanal en el Golfo de Santa Elena, uno de los principales caladeros de la zona. Objetivo: Caracterizar la dinámica de esta pesquería. Métodos: Se analizaron los datos recopilados por el Instituto Costarricense de Pesca y Acuicultura y las facturas pesqueras de los sitios de desembarque para el período 2010-2019. Resultados: Hubo una alta variación en la biomasa desembarcada, sin embargo, la captura total por unidad de esfuerzo (CPUE; kg/día) y de las principales especies objetivo no disminuyó significativamente. En general, hubo una CPUE más baja en los meses de surgencia (diciembre-abril). De las 42 especies comerciales reportadas, la mayor biomasa provino del pargo mancha (Lutjanus guttatus; 22 % de la biomasa), el pargo seda (L. peru; 18 %), las cabrillas (Epinephelus spp.; 15 %) y el pulpo (Octopus spp., 13 %). Conclusiones: La CPUE en Santa Elena no ha disminuido significativamente de 2010 a 2019, pero disminuye en la época de surgencia.
Abstract Introduction: The North Pacific of Costa Rica is a diverse and productive region; however, we have a poor understanding of the status of marine resources and fisheries dynamics, particularly for the artisanal fishery in the Gulf of Santa Elena, one of the main fishing grounds of the area. Objective: To characterize the dynamics of this fishery. Methods: We analyzed data collected by the Instituto Costarricense de Pesca y Acuicultura, and sales invoices from landing sites for the period 2010-2019. Results: There was high variation in the landed biomass, however, total catch per unit effort (CPUE; kg/day) and of the main targeted species did not decrease significantly. Overall, there was a lower CPUE in upwelling months (December-April). For the 42 commercial species reported, most biomass was from the spotted rose snapper (Lutjanus guttatus; 22 % of biomass), the Pacific red snapper (L. peru; 18 %), groupers (Epinephelus spp.; 15 %) and octopuses (Octopus spp., 13 %). Conclusions: CPUE at Santa Elena has not declined significantly from 2010 to 2019, but it falls in the upwelling season.
10.
Does the school environment exert influence on quality of life related to traumatic dental injury in children?
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QUEZADA-CONDE, Maritza Del Carmen
; ALVAREZ-VELASCO, Patricia Lourdes
; BALSECA-IBARRA, Mariela Cumanda
; FREITAS, Raíza Dias
; ARDENGHI, Thiago Machado
; MICHEL-CROSATO, Edgard
; PANNUTI, Claudio Mendes
; FRIAS, Antonio Carlos
; RAGGIO, Daniela Prócida
; MENDES, Fausto Medeiros
.
Abstract The aim of this cross-sectional study was to assess whether favorable factors related to school characteristics have a positive effect on the impact of traumatic dental injury (TDI) on oral health-related quality of life (OHRQoL). An epidemiological survey of oral health was conducted with 12-year-old schoolchildren from Quito, Ecuador. Children were examined for TDI, dental caries, and malocclusion. Individual socioeconomic data were also collected. Information on the physical environment, health practices, and occurrence of negative episodes at school was collected from the school coordinators. The Child Perceptions Questionnaire 11-14 (CPQ11-14) was used to evaluate the OHRQoL (outcome variable). Multilevel Poisson regression analysis was conducted. Severe TDI was associated with higher CPQ11-14 scores, even in the multiple model adjusted for oral health conditions, sex, individual socioeconomic variables, and school-related variables. Children from schools that had an appropriate tooth-brushing environment for their students exhibited a lower impact on OHRQoL, even after adjustment for the occurrence of TDI and other variables. A favorable school environment may exert a positive effect on OHRQoL, independent of the occurrence of TDI.
11.
Afinidades e Diferenças: Algumas Considerações sobre a Política da Consideração (Parte 2)
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Resumo Este artigo é a segunda parte de nossa discussão sobre a “política da consideração” proposta por José Kelly e Marcos Matos, e sua relação com as nossas teorias da maestria. Na primeira parte, publicada no número anterior deste periódico, analisamos as premissas dos autores e reinterpretamos os dados etnográficos nos quais estas se sustentam. Nesta segunda parte, reivindicamos o lugar central dos esquemas relacionais da maestria na etnologia indígena, e traçamos sua pertinência em diferentes contextos etnográficos. Em seguida, nós nos voltamos para a região do médio Juruá-Purus e dos povos Arawá e Katukina que habitam a região para oferecer uma análise diferente da suposta ‘alternância’ e ‘mutualidade’ que vigorariam na região segundo a ótica da política da consideração. Por fim, refletimos sobre a importância política da figura do ‘mestre’ ou ‘dono’ nas relações dos povos indígenas com os Estados-nações em que vivem.
Abstract This is the second part of our discussion of José Kelly and Marcos Matos’s “politics of regard” and its relation to our theories of mastery. In the first part, published in the previous issue of this journal, we analysed the authors’ premisses and reinterpreted the ethnographic data that they use to support it. In this second part, we reclaim the central place of the relational schema of mastery in lowland South American anthropology, and trace its pertinence in different ethnographic contexts. We then shift the middle course of the Juruá and Purus rivers, and the Arawá and Katukina speaking people that inhabit it, to provide a different analysis of the purported ‘alteration’ and ‘mutuality’ that would characterise the region according to politics of regard. Finally, we consider the political importance of the figure of ‘master’ or ‘owner’ in the relations that Indigenous peoples sustain with the nation states in which they live.
Resumen Este artículo es la segunda parte de nuestra discusión sobre la “política de la consideración” propuesta por José Kelly y Marcos Matos, y su relación con nuestras teorías de la maestría. En la primera parte, publicada en el número anterior de esta revista, analizamos las premisas de los autores y reinterpretamos los datos etnográficos sobre los cuales estos se sustentan. En esta segunda parte, reivindicamos el lugar central de los esquemas relacionales de la maestría en la etnología indígena, y trazamos su pertenencia en diferentes contextos etnográficos. En seguida, nos dedicamos a la región del medio Juruá-Purus, y de los pueblos Arawá y Katukina que habitan la región, para ofrecer un análisis diferente de la supuesta “alternancia” y “mutualidad” que adquirirían vigor en la región desde la óptica de la política de la consideración. Por último, reflexionamos sobre la importancia política de la figura del “maestro” o “dueño” en las relaciones de los pueblos indígenas con los estados-nación en los que viven.
12.
Water deficit tolerance in genotypes of Urochloa spp.
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Souza¹, Eduardo de
; Rocha², Wadson da
; Soares¹, Natalia
; Martins², Carlos
; Souza Sobrinho², Fausto de
; Almeida³, Maria de
; Rodrigues¹, Patricia
; Moreira, Gisele
.
RESUMO Estima-se que a população mundial irá aumentar consideravelmente nos próximos anos. Diante disso, existe a necessidade de maximizar a produção de proteína animal, da qual o sistema de produção a pasto é a forma mais econômica. Porém, os fatores abióticos interferem na produção animal, em que o déficit hídrico é o fator que mais limita o desenvolvimento de forrageiras. Este estudo visou avaliar a tolerância de genótipos de Urochloa spp. sob períodos em condição de déficit hídrico. O experimento foi realizado sob delineamento experimental de blocos casualizados, em esquema fatorial. Foram avaliados 12 genótipos forrageiros em três períodos de estresse hídrico, com três repetições. Não houve efeito de interação entre os fatores genótipos e tempo de estresse por déficit hídrico para todas as variáveis. Constatou-se redução na produção de forragem com o aumento do tempo em restrição hídrica, com diminuição de 23% para massa de folhas e 30% para colmos. No caso dos atributos da folha, foi verificada redução de 28% na área e 21% no comprimento foliar. Para o fator genótipo o material G11 se destacou em relação aos demais por apresentar melhores características agronômicas. Entretanto, são necessários estudos a fim de demonstrar a superioridade desse material em sistemas de produção.
ABSTRACT It is estimated that World population will increase considerably in the coming years. Thus, there is a need to maximize the production of animal protein, of which the pasture production system is the most economical way. However, abiotic factors influence animal production, with water deficit being the factor that most limits the development of forages. This research aimed to investigate the tolerance of Urochloa spp. genotypes under periods with water deficit conditions. The experiment was carried out in a randomized block design, under a factorial design. Twelve forage genotypes were evaluated in three periods of water stress, with three replications. There was no interaction effect between the genotype factors and time of stress due to water deficit for all variables. There was a reduction in forage production with the increase of time in water restriction, and a decrease of 23% in leaf mass and 30% in stem. In the case of leaf attributes, there was a decrease of 28% in the area and 21% in the leaf length. For the genotype factor, the G11 material stood out in relation to the others for presenting better agronomic characteristics. However, studies are needed to demonstrate the superiority of this material in production systems.
https://doi.org/10.19084/rca.21314
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13.
Damage Control for renal trauma: the more conservative the surgeon, better for the kidney
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Salcedo, Alexander
; Ordoñez, Carlos A.
; Parra, Michael W.
; Osorio, José Daniel
; Leib, Philip
; Caicedo, Yaset
; Guzmán-Rodríguez, Mónica
; Padilla, Natalia
; Pino, Luis Fernando
; Herrera, Mario Alain
; Hadad, Adolfo González
; Serna, José Julián
; García, Alberto
; Coccolini, Federico
; Catena, Fausto
.
Resumen El trauma renal y de las vías urinarias se presenta con relativa frecuencia en pacientes con trauma penetrante. El estándar actual de manejo es realizar una evaluación imagenológica, por medio de tomografía computarizada y un abordaje vascular, a través de técnicas de angiografía/embolización. Sin embargo, el manejo de un paciente hemodinámicamente inestable con criterios de laparotomía de emergencia, con hallazgos de trauma renal o de vías urinarias es aún tema de discusión. El siguiente articulo presenta el consenso del grupo de Cirugía de Trauma y Emergencias (CTE) de Cali respecto al manejo del trauma penetrante renal y de vías urinarias mediante cirugía de control de daños. Las características intra quirúrgicas del hematoma perirrenal tales como si es expansivo o si tiene signos de sangrado activo, son puntos de referencia para decidir entre un abordaje conservador, por estudios imagenológicos posteriores. En cambio, si existe la sospecha de un trauma renal severo, se debe realizar exploración quirúrgica con alta probabilidad de una nefrectomía. El manejo de control de daños de las vías urinarias debe ser conservador y diferido, la lesión de estos órganos no representa un riesgo en el manejo agudo del trauma.
Abstract Urologic trauma is frequently reported in patients with penetrating trauma. Currently, the computerized tomography and vascular approach through angiography/embolization are the standard approaches for renal trauma. However, the management of renal or urinary tract trauma in a patient with hemodynamic instability and criteria for emergency laparotomy, is a topic of discussion. This article presents the consensus of the Trauma and Emergency Surgery Group (CTE) from Cali, for the management of penetrating renal and urinary tract trauma through damage control surgery. Intrasurgical perirenal hematoma characteristics, such as if it is expanding or actively bleeding, can be reference for deciding whether a conservative approach with subsequent radiological studies is possible. However, if there is evidence of severe kidney trauma, surgical exploration is mandatory and entails a high probability of requiring a nephrectomy. Urinary tract damage control should be conservative and deferred, because this type of trauma does not represent a risk in acute trauma management.
https://doi.org/10.25100/cm.v52i2.4682
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14.
Comparación experimental entre la sensitividad y la cementación en el comportamiento no drenado de suelos arcillosos
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ABSTRACT This paper presents an experimental study, which compares the effect of the sensitivity against the cementation in the recovering of the stress-strain properties in clayey soils from "Sabana de Bogotá". The work methodology included three phases: (i) extraction of samples; (ii) properties assessment of the undisturbed samples; and (ii) stabilization and analysis of the resistance of the stabilized samples with cemented materials. An experimental plan, which included physical and mechanical tests, was developed. The plan had an emphasis on the assessment of the undrained shear strength and the elastic modulus through unconfined compression tests. The samples were compacted and stabilized with the addition of two solid chemical products, calcium carbonate and iron oxide. Results between natural, remoulded and stabilized were compared by means of statistical methods. Therefore, it was found that the use of iron oxide in this kind of soil allows obtaining stress-strain parameters close to the undisturbed state after the compaction process.
RESUMEN En este artículo se presenta un estudio experimental que compara el efecto de la sensitividad contra el de la cementación, en la recuperación de las propiedades esfuerzo deformación en suelos arcillosos de la Sabana de Bogotá. La metodología de trabajo incluyó tres fases: (i) extracción de muestras; (ii) evaluación de las propiedades de los suelos en estado inalterado; y (iii) estabilización y análisis de resistencia de dichas muestras modificados materiales cementantes. Las muestras de suelo fueron tomadas en el municipio de Madrid (Cundinamarca, Colombia). Se desarrolló un plan experimental que incluyó ensayos de caracterización física y mecánica. En dicho plan se hizo énfasis en la evaluación de la resistencia al corte no drenada y los parámetros elásticos mediante ensayos de compresión inconfinada. Los suelos fueron compactados y estabilizados mediante la adición de dos productos químicos sólidos, carbonato de calcio y óxido de hierro. Los resultados entre las muestras naturales, remoldeadas y mejoradas fueron comparados mediante técnicas de análisis estadístico. De esta manera, se encontró que la implementación del óxido de hierro en este tipo de suelos permite obtener parámetros esfuerzo-deformación cercanos a los del estado inalterado después del proceso de remoldeo.
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15.
Afinidades e diferenças: Algumas considerações sobre a política da consideração (Parte 1)
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Resumo Este artigo promove uma discussão crítica sobre a “política da consideração” proposta por Kelly e Matos, em texto publicado nesta revista. O objetivo é comparar interpretações alternativas sobre o mundo indígena amazônico e daí tirar algumas consequências teórico-etnográficas. O artigo será publicado em duas partes. Na primeira, analisam-se as premissas dos autores, bem como os dados etnográficos que sustentam seus argumentos. Na segunda, esclarecem-se equívocos na interpretação da “teoria da maestria”, bem como avançam-se algumas figuras alternativas da ação e agência na Amazônia indígena. Ao final, pergunta-se a que serve uma política de donos.
Abstract This article is a critical discussion of the “politics of regard” proposed by Kelly and Matos in an article published in this journal. Our aim is to compare alternative interpretations of Indigenous Amazonia, and to highlight their theoretical-ethnographic consequences. The article will be published in two parts. In the first part we analyse the authors’ premises, as well as the ethnographic data that supports their arguments. In the second, we will clarify equivocations in their interpretation of the ‘theory of mastery’, and suggest alternative figure for action and agency in Indigenous Amazonia. In conclusion, we will enquire into what a politics of ownership achieves.
Resumen Este artículo propone una discusión crítica sobre la "política de la consideración" planteada por Kelly y Matos en un texto publicado en esta revista. El objetivo es comparar interpretaciones alternativas sobre el mundo indígena amazónico y extraer algunas consecuencias teórico-etnográficas. El artículo será publicado en dos partes. En la primera, se analizan las premisas de los autores, así como los datos etnográficos que apoyan sus argumentos. La segunda parte aclara malentendidos en la interpretación de la "teoría de la maestría" y avanza algunas figuras alternativas de la acción y la agencia en la Amazonía indígena. Al final, nos preguntamos para qué sirve una política de dueños.
https://doi.org/10.1590/1678-49442021v27n3a200
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