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1.
Algae biostimulant improves salt tolerance and visual quality of tropical ornamental herbaceous species
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Sales, Jonnathan R. da S.
; Lacerda, Claudivan F. de
; Melo, Alberto S. de
; Sousa, Geocleber G. de
; Mesquita, Rosilene O.
; Ferreira, Jorge F. da S.
; Oliveira, Adriana C. de
; Canjá, Juvenaldo F.
; Cavalcante, Eduardo S.
; Ribeiro, Rute M. R.
.
Revista Brasileira de Engenharia Agrícola e Ambiental
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RESUMO O uso de bioestimulantes pode mitigar os efeitos deletérios do estresse salino no crescimento e variáveis fisiológicos. Assim, objetivou-se com o presente estudo avaliar o crescimento, fisiologia, solutos orgânicos e características visuais de duas espécies ornamentais tropicais (Celosia argentea and Catharanthus roseus) cultivadas utilizando-se águas salobras e tratadas com extrato de Ascophyllum nodosum. O experimento foi conduzido em casa de vegetação, em delineamento experimental em blocos ao acaso, dispostos em parcelas subsubdivididas, sendo as parcelas constituídas por três níveis de condutividade elétrica da água de irrigação (CEa - 0,5, 2,5 e 4,5 dS m-1), as subparcelas quatro concentrações de extrato de algas (0, 400, 800 e 1200 mg L-1) e as subsubparcelas de duas espécies herbáceas ornamentais tropicais: C. argentea e C. roseus. A salinidade da água de irrigação afeta negativamente as características morfológicas e fisiológicas das duas espécies estudadas, principalmente C. roseus. A irrigação com água de até 2,5 dS m-1 favoreceu a qualidade visual e aumentou a preferência de compra por C. argentea. O uso de concentrações intermediárias (400 mg L-1) de extrato de alga (A. nodosum) promoveu mitigação parcial dos efeitos do estresse salino na produção de biomassa e nas trocas gasosas foliares, especialmente para C. argentea, mas essas respostas positivas diminuíram ou desapareceram com a intensificação do estresse salino e com o aumento da concentração do extrato de algas. fisiológicos Assim objetivouse objetivou se fisiologia Celosia roseus utilizandose utilizando nodosum vegetação acaso subsubdivididas CEa 05 0 5 0,5 25 2 2, 45 4 4, m1, m1 m 1 , m-1) 0, (0 400 80 120 L1 L L-1 C estudadas m- (40 A. (A foliares ( 40 8 12 L- (4
ABSTRACT The use of biostimulants may mitigate the deleterious effects of salt stress on plant growth and physiological variables. Thus, the present study aimed to evaluate the growth, physiology, organic solutes, and visual characteristics of two tropical ornamental species (Celosia argentea and Catharanthus roseus) cultivated with brackish waters and treated with Ascophyllum nodosum extract. The experiment was performed in greenhouse conditions. The experimental design was a complete randomized block arranged in a split-plot scheme. The plots comprised three levels of electrical conductivity of the irrigation water (ECw - 0.5, 2.5, and 4.5 dS m-1), the subplots four concentrations of algae extract (0, 400, 800, and 1200 mg L-1), and the sub-subplots two tropical ornamental herbaceous species [C. argentea and C. roseus]. The salinity of the irrigation water negatively affects the morphological and physiological characteristics of the two species studied, mainly C. roseus. Irrigation with water up to 2.5 dS m-1 favored visual quality and increased the purchasing preference for C. argentea. The use of intermediate concentrations (400 mg L-1) of algae extract (A. nodosum) promoted partial mitigation of the effects of salt stress on biomass production and leaf gas exchange, especially for C. argentea, but these positive responses decreased or disappeared with the intensification of salt stress and the increase in algae extract concentration. variables Thus physiology solutes Celosia roseus conditions splitplot split plot scheme ECw 05 0 5 0.5 25 2 45 4 4. m1, m1 m 1 , m-1) 0, (0 400 800 120 L1, L1 L subsubplots sub C [C . roseus] studied 2. m- (40 L-1 A. A (A exchange concentration 0. ( 40 80 12 (4 L- 8
2.
First occurrence of bidens mottle virus in Brazil: biological and molecular characterization of isolates infecting Zinnia sp. and Bidens pilosa Brazil sp
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Favara, Gabriel Madoglio
; Ferro, Camila Geovana
; Bello, Vinicius Henrique
; Oliveira, Felipe Franco de
; Kraide, Heron Delgado
; Ribeiro Junior, Marcos Roberto
; Krause-Sakate, Renate
; Kitajima, Elliot Watanabe
; Rezende, Jorge Alberto Marques
.
ABSTRACT Zinnia sp. and hairy beggartick (Bidens pilosa) plants exhibiting symptoms of possible virus infection were found in the municipality of Santa Bárbara d’Oeste, São Paulo State, Brazil. Flexuous filamentous particles and cytoplasmatic inclusions typical of potyvirus infection were observed by transmission electron microscopy, respectively, in leaf extracts and cells of symptomatic leaves. Infection of both plants with bidens mottle virus (BiMoV) was confirmed by RT-PCR using potyvirus universal primers, followed by nucleotide sequencing of the amplicons. The nearly complete genome sequence of the Brazilian isolate, named BiMoV-BR, is 9700 nucleotides long and shares 95.6 % identity with the corresponding nucleotide sequence of a BiMoV isolate from the United States. BiMoV-BR was mechanically transmitted and caused systemic infection on plants of Zinnia sp., hairy beggarstick, sunflower (Helianthus annuus), and lettuce (Lactuca sativa). Myzus persicae transmitted the virus to Zinnia sp. plants with efficacy of 8 % and 42 %, using one and ten aphids per plant, respectively. This is the first detection of BiMoV in Brazil. Further studies are necessary to evaluate the distribution of this potyvirus in the country. sp Bidens pilosa dOeste, dOeste d Oeste, Oeste d’Oeste State Brazil microscopy respectively leaves (BiMoV RTPCR RT PCR primers amplicons BiMoVBR, BiMoVBR BR, BR 970 956 95 6 95. States beggarstick Helianthus annuus, annuus , annuus) Lactuca sativa. sativa . sativa) 4 plant country 97 9
3.
Incomplete recovery of the CD4+/CD8+ ratio is associated with the late introduction of antiretroviral therapy among people living with HIV infection CD4CD8 CDCD CD4 CD8 CD CD4+/CD8 CD4CD CD4+/CD
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Prates, Gabriela da Silva
; Monteiro, Mariana Amelia
; Oliveira, Éricka Constantinov
; Nascimento, Najara Ataide de Lima
; Veiga, Ana Paula Rocha
; Ferreira, Mauricio Domingues
; Polis, Thales José Bueno
; Caetano, Gabriela Prandi
; Soares, Beatriz Rodrigues Pellegrina
; Magri, Marcello Mihailenko Chaves
; Pereira, Luisa Oliveira
; Fonseca, Luiz Augusto Marcondes
; Alves, Wagner Silva
; Duarte, Alberto José da Silva
; Casseb, Jorge Simão do Rosário
.
ABSTRACT Despite being subject to lower AIDS-related mortality rates and having a higher life expectancy, patients with HIV are more prone to develop non-AIDS events. A low CD4+/CD8+ ratio during antiretroviral therapy identifies people with heightened immune senescence and increased risk of mortality. In clinical practice, finding determinants of a low CD4+/CD8+ ratio may be useful for identifying patients who require close monitoring due to an increased risk of comorbidities and death. We performed a prospective study on the evolution of the CD4+/CD8+ ratio in 60 patients infected with HIV (80% males), who were subjected to two different antiretroviral regimens: early and deferred therapy. The initial CD4+/CD8+ ratio was ≤1 for 70% of the patients in both groups. Older age, CD4+ cell count at inclusion, Nadir CD8+T-cell count, and Initial CD4+/CD8+ ratio ≤ 1 were risk factors for lack of ratio recovery. In the multivariate analysis, a CD4+/CD8+ ratio > 1 at the start of the treatment was found to be a determinant factor in maintaining a CD4+/CD8+ ratio > 1. The nadir CD4+T-cell count was lower in the deferred therapy group (p=0.004), and the last CD4+/CD8+ ratio ≤1 was not associated with comorbidities. Ratio recovery was not associated with the duration of HIV infection, time without therapy, or absence of AIDS incidence. A greater improvement was observed in patients treated early (p=0.003). In contrast, the slope of increase was slower in patients who deferred treatment. In conclusion, the increase in the CD4+/CD8+ ratio occurred mostly for patients undergoing early strategy treatment and its extension did not seem to be related to previous HIV-related factors. AIDSrelated expectancy nonAIDS non events CD4CD8 CDCD CD4 CD8 CD CD4+/CD8 practice death 6 80% 80 (80 males, males , males) regimens 70 groups age inclusion CD8+Tcell CD8Tcell CDTcell CD8+T T analysis CD4+Tcell CD4Tcell CD4+T p=0.004, p0004 p p=0.004 0 004 (p=0.004) infection incidence p=0.003. p0003 p=0.003 . 003 (p=0.003) contrast conclusion HIVrelated CD4CD CD4+/CD 8 (8 7 Tcell CD8T CDT CD4T p000 p=0.00 00 (p=0.004 (p=0.003 ( p00 p=0.0 (p=0.00 p0 p=0. (p=0.0 p=0 (p=0. p= (p=0 (p= (p
4.
Caracterização energética de biomassas agrícolas e florestais no estado de Pernambuco
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Ferreira, Sabrina de Oliveira Pinto Muniz
; Ferreira Júnior, Jorge Alberto Muniz
; Braz, Rafael Leite
.
RESUMO Tem se intensificado a busca por alternativas sustentáveis e menos poluentes, como o aproveitamento de resíduos de biomassa para fins energéticos, substituindo os combustíveis fósseis e derivados. O objetivo deste estudo foi avaliar o potencial energético de biomassas agrícolas e florestais para geração de energia. Além disso, determinar suas propriedades físicas, químicas e energéticas. Para realizar esta análise, utilizou-se cinco biomassas agrícolas e florestais de processos produtivos no estado de Pernambuco, são elas: bagaço de cana-de-açúcar, casca de eucalipto, cavaco de eucalipto, serragem de madeira e poda da arborização urbana do município de Recife. O bagaço de cana-de-açúcar (18.405 KJ/Kg), seguido pela serragem (18.115 KJ/Kg) e cavaco de eucalipto (18.024 KJ/Kg), obtiveram maior poder calorífico. Quanto à química elementar, o teor de hidrogênio foi o único que não apresentou diferença significativa entre as biomassas e o bagaço de cana apresentou os melhores valores de oxigênio e enxofre, além de alto teor de carbono. Em relação à densidade energética e ao IVC, o cavaco de eucalipto (6,16 GJ/m³ e 307, respectivamente) e a serragem (5,91 GJ/m³ e 32,86, respectivamente), apresentaram os maiores valores. Todas as biomassas avaliadas possuem potencial energético, porém, com base nas variáveis, o bagaço de cana-de-açúcar, a serragem e o cavaco de eucalipto tendem a apresentar maior combustibilidade. poluentes energéticos derivados energia disso físicas energéticas análise utilizouse utilizou Pernambuco elas canadeaçúcar, canadeaçúcar açúcar, açúcar Recife 18.405 18405 18 405 (18.40 KJ/Kg, KJKg KJ/Kg , KJ Kg 18.115 18115 115 (18.11 18.024 18024 024 (18.02 calorífico elementar enxofre carbono IVC 6,16 616 6 16 (6,1 GJm³ GJm GJ m³ m GJ/m 307 respectivamente 5,91 591 5 91 (5,9 3286 32 86 32,86 respectivamente, porém variáveis combustibilidade 18.40 1840 1 40 (18.4 18.11 1811 11 (18.1 18.02 1802 02 (18.0 6,1 61 (6, 30 5,9 59 9 (5, 328 3 8 32,8 18.4 184 4 (18. 18.1 181 18.0 180 0 6, (6 5, (5 32, 18. (18 ( (1
ABSTRACT The search for sustainable and less polluting alternatives has intensified, such as the use of biomass residues for energy purposes, replacing fossil fuels and derivatives. The objective of this study was to evaluate the energy potential of agricultural and forestry biomasses for energy generation, as well as to, determine their physical, chemical and energetic properties. To carry out this analysis five agricultural and forestry biomasses from productive processes in the state of Pernambuco were used, namely: sugarcane bagasse, eucalyptus bark, eucalyptus chips, wood sawdust and pruning of urban trees in the municipality of Recife. Sugarcane bagasse (18,405 KJ/Kg), followed by sawdust (18,115 KJ/Kg), and eucalyptus chips (18,024 KJ/Kg), had the highest calorific value. As for elemental chemistry, the hydrogen content was the only one that did not show a significant difference between the biomasses, and the sugarcane bagasse presented the best values of oxygen and sulfur, in addition to high carbon content. Regarding energy density and IVC, eucalyptus chips (6.16 GJ/m³ and 307, respectively), and sawdust (5.91 GJ/m³ and 32, 86, respectively), presented the highest values. All evaluated biomasses have energy potential, however, based on the variables, sugarcane bagasse, sawdust and eucalyptus chips, tend to have greater combustibility. intensified purposes derivatives generation physical properties used namely bark Recife 18,405 18405 18 405 (18,40 KJ/Kg, KJKg KJ/Kg , KJ Kg KJ/Kg) 18,115 18115 115 (18,11 18,024 18024 024 (18,02 value chemistry sulfur IVC 6.16 616 6 16 (6.1 GJm³ GJm GJ m³ m GJ/m 307 respectively, respectively respectively) 5.91 591 5 91 (5.9 32 86 however variables combustibility 18,40 1840 1 40 (18,4 18,11 1811 11 (18,1 18,02 1802 02 (18,0 6.1 61 (6. 30 5.9 59 9 (5. 3 8 18,4 184 4 (18, 18,1 181 18,0 180 0 6. (6 5. (5 18, (18 ( (1
5.
Investigating the potential of incorporating concrete floor polishing sludge waste in permeable concrete
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Santos, Igor Soares dos
; Nahime, Bacus de Oliveira
; Akasaki, Jorge Luís
; Lima, Elton Carvalho de
; Alves, Michell Macedo
; Reis, Idalci Cruvinel
; Silva, Lorena Araújo
; Barella Netto, Alberto
.
Resumo Com o aumento das inundações nas áreas urbanas, a utilização de pavimentos permeáveis tornou-se cada vez mais vantajosa. Nesse contexto, o objetivo deste estudo foi avaliar a influência da adição de resíduo de polimento de piso de concreto (RPFC) no comportamento físico, mecânico e microestrutural do concreto permeável. Foram avaliadas três misturas diferentes: uma amostra de referência determinada com base em revisão de literatura e dosada com agregados naturais e outras duas amostras com adição de 2% de CFPW e 4% de CFPW, respectivamente, em relação à massa de cimento. Ao comparar as dosagens de 2% CFPW e 4% CFPW com a amostra de referência, houve aumento na resistência média à compressão de 57.45% e 33.78% para três dias de cura, e de 45.41% e 37.20% para sete dias de cura. Além disso, a resistência à tração na flexão das amostras de 2% e 4% CFPW apresentou desempenho superior de 55,70% e 58,75%, respectivamente, em comparação com a dosagem controle após três dias. Aos 28 dias de idade das amostras, a composição de 4% de CFPW apresentou um aumento de 16,3% em relação ao controle e uma melhoria de 11% em comparação com a composição de 2% de CFPW. Para os testes de permeabilidade não foram observadas variações significativas. Para as amostras de 2% CFPW e 4% CFPW, respectivamente, foi observada uma redução no índice de vazios para 25,08% e 12,44%. Uma boa correlação entre resistências à compressão e flexão foi determinada. urbanas tornouse tornou se vantajosa contexto RPFC (RPFC físico permeável diferentes 2 4 respectivamente cimento 5745 57 45 57.45 3378 33 78 33.78 cura 4541 41 45.41 3720 37 20 37.20 disso 5570 55 70 55,70 5875 58 75 58,75% 163 16 3 16,3 11 significativas 2508 25 08 25,08 1244 12 44 12,44% 574 5 57.4 337 7 33.7 454 45.4 372 37.2 557 55,7 587 58,75 1 16, 250 0 25,0 124 12,44 57. 33. 45. 37. 55, 58,7 25, 12,4 58, 12,
Abstract With the increase in floods in urban areas, the use of permeable pavement has become increasingly advantageous. In this context, the objective of this study was to evaluate the influence of the addition of concrete floor polishing waste (CFPW) on the physical, mechanical, and microstructural behavior of permeable concrete. Three different mixtures were evaluated: a reference sample determined based on the literature review and dosed with natural aggregates and two other samples with the addition of 2% CFPW and 4% CFPW, respectively, in relation to cement mass. When comparing the dosages of 2% CFPW and 4% CFPW to the reference sample, there was an increase in the average compressive strength of 57.45% and 33.78% for three days of curing, and 45.41% and 37.20% for seven days of curing. Furthermore, the flexural strength of 2% and 4% CFPW samples exhibited a superior performance of 55.70% and 58.75%, respectively, compared to the control after three days. At 28 days of age, the 4% CFPW composition showcased a 16.3% increase relative to the control and an 11% improvement compared to the 2% CFPW composition. For the permeability tests, no significant variations were observed. For the 2% CFPW and 4% CFPW samples, respectively, a reduction in the void ratio was observed to 25.08% and 12.44%. A good correlation between compressive and flexural strengths was determined. areas advantageous context (CFPW physical mechanical evaluated 2 4 respectively mass 5745 57 45 57.45 3378 33 78 33.78 curing 4541 41 45.41 3720 37 20 37.20 Furthermore 5570 55 70 55.70 5875 58 75 58.75% age 163 16 3 16.3 11 tests 2508 25 08 25.08 1244 12 44 12.44% 574 5 57.4 337 7 33.7 454 45.4 372 37.2 557 55.7 587 58.75 1 16. 250 0 25.0 124 12.44 57. 33. 45. 37. 55. 58.7 25. 12.4 58. 12.
6.
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
7.
Evaluation of the non-metallic compounds on secondary refining – Ruhrstahl Heraeus (RH) process nonmetallic non metallic RH (RH
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Pereira, Paulo André
; Ruy, Demetrius Da Rós
; Tenório, Jorge Alberto Soares
; Carvalho, Cássio Santos de
; Oliveira, José Roberto de
; Souza, Raphael Mariano de
; Vieira, Estéfano Aparecido
.
Abstract The purpose of this study was to evaluate the cleanliness of Interstitial Free (IF) steels produced in a Ruhrstahl Heraeus (RH) vacuum degasser by determining the level of Al2O3 and Al-Ti-O inclusion types generated in three different process conditions: i) steel processed without thermal intervention; ii) steel processed with chemical heating and iii) steel processed with cooling by the scrap addition. The inclusion formation and remotion during these processes were analyzed. The influence of homogenization time was also studied. The content of inclusions was measured by a Scanning Electron Microscope (SEM) with an automated counting system denoted as Automated Steel Cleanliness Analysis Tool (ASCAT). This method can provide the size and composition of non-metallic compounds. The results have shown that the Ruhrstahl Heraeus (RH) process can improve the remotion efficiency of the inclusions, such as those larger than 2.5 mm, which is due to the molten steel circulating in RH vessel. For some inclusion types, higher concentrations were detected, but their size was smaller. For a heat where it was necessary to apply chemical heating using Al addition and O injection, there was detected a higher concentration of inclusions when compared with that cooled by scrap addition. In cooling heats, there is a strong generation of small and thin inclusions (<1.0 mm) that are very difficult to be removed from liquid steel. The size of the Al2O3(s) type is around eight times larger than Al-Ti type inclusions. IF (IF (RH AlO Al2O AlTiO Ti conditions i intervention ii iii analyzed studied SEM (SEM ASCAT. ASCAT . (ASCAT) nonmetallic non metallic compounds 25 2 5 2. mm vessel smaller injection heats <1.0 10 1 0 (<1. Al2O3s AlOs s Al2O3(s AlTi (ASCAT <1. (<1 <1 (< < (
8.
Infarto Agudo do Miocárdio com Supradesnível de ST e Terapia de Reperfusão no Brasil: Dados do Registro ACCEPT Brasil
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Ritt, Luiz Eduardo Fonteles
; Silva, Pedro Gabriel Melo de Barros e
; Darzé, Eduardo Sahade
; Santos, Renato Hideo Nakagawa
; de Oliveira, Queila Borges
; Berwanger, Otavio
; Mattos, Luiz Alberto Piva e
; dos Santos, Elizabete Silva
; Souza, Antonio Carlos Sobral
; Cavalcante, Margaret Assad
; de Andrade, Pedro Beraldo
; Neuenschwander, Fernando Carvalho
; Vargas Filho, Hugo
; Guimarães, Jorge Ilha
; de Andrade, Jadelson Pinheiro
; de Paola, Angelo Amato Vincenzo
; Malachias, Marcus Vinícius Bolívar
; Précoma, Dalton Bertolim
; Bacal, Fernando
; Dutra, Oscar Pereira
.
RESUMO Fundamento: Há carência de informações nacionais em relação a terapias utilizadas e evolução nos pacientes com síndrome coronária aguda com elevação de ST (SCACEST). Objetivos: Avaliar as terapias baseadas em evidência, a ocorrência de desfechos, uso de reperfusão e preditores para não receber reperfusão nos pacientes com SCACEST em um registro nacional multicêntrico. Métodos: Pacientes com SCACEST do Registro ACCEPT com até 12 horas de sintomas foram seguidos por 1 ano para ocorrência de eventos cardiovasculares maiores. Um p < 0,05 foi aplicado para todas análises. Resultados: Na análise de 1.553 pacientes, a taxa de reperfusão foi de 76,8%, variando de 47,5% na região Norte a até 80,5% na região Sudeste. A taxa de eventos cardiovasculares maiores foi de 12,5% em 1 ano. A prescrição de terapias baseadas em evidência na admissão hospitalar foi de 65,6%. A presença de hipertensão (odds ratio [OR] 1,47; intervalo de confiança [IC] 95% 1,11 a 1,96; p < 0,01), infarto agudo do miocárdio prévio (OR 1,81; IC 95% 1,32 a 2,48; p < 0,001) e as regiões Norte (OR 4,65; IC 95% 2,87 a 7,52; p < 0,001), Centro-Oeste (OR 4,02 IC 95% 1,26 a 12,7; p < 0,05) e Nordeste (OR 1,70; IC 95% 1,17 a 2,46; p < 0,01) foram preditores independentes de não utilização de terapia de reperfusão. Conclusões: No seguimento de 1 ano do Registro ACCEPT podemos verificar uma ampla variação dentre as regiões no que tange a aderência às melhores práticas de cuidado. Ser atendido nas regiões Norte, Centro-Oeste ou Nordeste, ter hipertensão arterial sistêmica ou infarto prévio foram preditores independentes de não utilização de terapia de reperfusão. Fundamento SCACEST. . (SCACEST) Objetivos desfechos multicêntrico Métodos 005 0 05 0,0 análises Resultados 1553 553 1.55 768 76 8 76,8% 475 47 5 47,5 805 80 80,5 Sudeste 125 12,5 656 65 6 65,6% odds OR [OR 1,47 147 [IC 95 111 11 1,1 1,96 196 96 0,01, 001 0,01 , 01 1,81 181 81 132 32 1,3 2,48 248 2 48 0,001 0001 4,65 465 4 287 87 2,8 7,52 752 7 52 0,001, CentroOeste Centro Oeste 402 02 4,0 126 26 1,2 12,7 127 1,70 170 70 117 17 2,46 246 46 Conclusões cuidado (SCACEST 00 0, 155 55 1.5 76,8 47, 80, 12, 65,6 1,4 14 9 1, 1,9 19 1,8 18 13 3 2,4 24 0,00 000 4,6 28 2, 7,5 75 40 4, 1,7 15 1. 76, 65, 7,
ABSTRACT Background: There is a lack of information from Brazil regarding therapies used and outcomes in patients with acute coronary syndrome with ST elevation (STEMI). Objectives: To evaluate evidence-based therapies, occurrence of outcomes, reperfusion use, and predictors of not receiving reperfusion in patients with STEMI in a national multicenter registry. Methods: Patients with STEMI from the ACCEPT registry, with up to 12 hours of symptoms, were followed for 1 year for the occurrence of major adverse cardiovascular events. A significance level of p < 0.05 was applied for all analyses. Results: In the analysis of 1553 patients, the reperfusion rate was 76.8%, ranging from 47.5% in the North Region to 80.5% in the Southeast Region. The rate of major adverse cardiovascular events was 12.5% at 1 year. The prescription of evidence-based therapies at hospital admission was 65.6%. The presence of hypertension (odds ratio [OR] 1.47; 95% confidence interval [CI] 1.11 to 1.96; p < 0.01); prior acute myocardial infarction (OR 1.81; 95% CI 1.32 to 2.48; p < 0.001); and the North (OR 4.65; 95% CI 2.87 to 7.52; p < 0.001), Central-West (OR 4.02; 95% CI 1.26 to 12.7; p < 0.05), and Northeast Regions (OR 1.70; 95% CI 1.17 to 2.46; p < 0.01) were independent predictors of not receiving reperfusion therapy. Conclusion: In the 1-year follow-up of the ACCEPT Registry, we were able to verify a wide variation within Brazilian geographical regions regarding adherence to best care practices. The following were independent predictors of not receiving reperfusion therapy: being treated in the North, Central-West, and Northeast Regions; having systemic arterial hypertension; and prior infarction. Background STEMI. . (STEMI) Objectives evidencebased evidence based use registry Methods symptoms 005 0 05 0.0 analyses Results 155 768 76 8 76.8% 475 47 5 47.5 805 80 80.5 125 12.5 656 65 6 65.6% odds OR [OR 1.47 147 95 [CI 111 11 1.1 1.96 196 96 0.01 001 01 1.81 181 81 132 32 1.3 2.48 248 2 48 0.001 0001 0.001) 4.65 465 4 287 87 2.8 7.52 752 7 52 0.001, , CentralWest Central West 4.02 402 02 126 26 1.2 12.7 127 0.05, 0.05) 1.70 170 70 117 17 2.46 246 46 therapy Conclusion 1year followup follow Registry practices CentralWest, West, (STEMI 00 0. 15 76.8 47. 80. 12. 65.6 1.4 14 9 1. 1.9 19 1.8 18 13 3 2.4 24 0.00 000 4.6 28 2. 7.5 75 4.0 40 1.7 76. 65. 4. 7.
9.
Green Ironmaking Industry: Production of Iron Pellets Using Lime Sludge Industry
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Rosso Neto, Lucio
; Borgert, Carlos Henrique
; Oliveira, José Roberto de
; Grillo, Felipe Fardin
; Manfredi, Gabriel Valério Pereira
; Coleti, Jorge Luis
; Espinosa, Denise Crocce Romano
; Tenório, Jorge Alberto Soares
; Gesuino, David Batista
; Frizon, Tiago Elias Allievi
; Junca, Eduardo
.
The use of alternative raw materials is essential for establishing a circular economy in the mineral and ironmaking sectors. Therefore, this study investigates the potential of lime sludge as fluxing material during pelletization and proposes an alternative route for the usage of waste. The pellets were manufactured with different binary basicity values (CaO/SiO2) (0.15-0.45) and bentonite (0.5-0.7 wt%) and fixed carbon (0.5-1.1 wt%) contents. The results demonstrated that lime sludge has significant potential for application in pelletization. Pellet quality was evaluated using drop number, mechanical strength, tumble index, porosity, and kinetic analyses. Pellets with the optimal composition using lime sludge withstood 3.6 drops/pellet, a tumble test of 1.57 wt.%, and a mechanical strength test of 214.83 kgf/pellet and exhibited a porosity of 31.28%. Lime sludge did not influence the reducibility of the iron-ore pellets. In the temperature range of 800-900 °C, the reaction was controlled by diffusion, with Ea between 179.89 and 233.10 kJ/mol. sectors Therefore waste CaO/SiO2 CaOSiO2 CaOSiO CaO SiO2 SiO (CaO/SiO2 0.150.45 015045 0.15 0.45 0 15 45 (0.15-0.45 0.50.7 0507 0.5 0.7 5 7 (0.5-0. wt% wt 0.51.1 0511 1.1 1 (0.5-1. contents number index analyses 36 3 6 3. dropspellet drops pellet drops/pellet 157 57 1.5 wt.% 21483 214 83 214.8 kgfpellet kgf 3128 31 28 31.28% ironore iron ore 800900 800 900 800-90 C °C diffusion 17989 179 89 179.8 23310 233 10 233.1 kJmol kJ mol kJ/mol CaO/SiO (CaO/SiO 150 0.150.4 01504 015 0.1 045 0.4 4 (0.15-0.4 50 0.50. 050 05 0. 07 (0.5-0 51 0.51. 051 11 1. (0.5-1 wt. 2148 21 8 214. 312 2 31.28 80090 80 90 800-9 1798 17 179. 2331 23 233. 0.150. 0150 01 04 (0.15-0. 0.50 (0.5- 0.51 31.2 8009 9 800- 0.150 (0.15-0 (0.5 31. (0.15- (0. (0.15 (0 (0.1 (
10.
Analysis of the influence of the composition and quenching parameters on the performance of some dual phase in HSLA steels
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Borges, Hektor Oliveira
; Medeiros, Jorge Luis Braz
; Biehl, Luciano Volcanoglo
; Martins, Carlos Otávio Damas
; Moraes, Carlos Alberto Mendes
; Souza, José de
.
ABSTRACT Due to its combination of high mechanical properties, good formability, and low production cost, steel is a key material with potential for improvement in the metallurgical industry. Based on these conditions, this research evaluated the influence of material composition and incomplete austenitization parameters on the final metallurgical and mechanical properties of high-strength microalloyed steels after cooling in a medium with high severity. The applied cycle was based on the intercritical thermal treatment of microalloyed steels with niobium (Nb) and titanium (Ti) to increase the mechanical resistance and guarantee the tenacity of the material. An experimental study was carried out testing three intercritical temperatures, 806 °C, 775 °C, and 740 °C, with subsequent cooling in polymeric solutions in water. The studies showed that the intercritical temperature variation directly contributed to the difference in the second phase microstructure present in the samples. The heat treatment findings resulted in a microhardness of 434.2 HV0.01, characterizing the low-carbon martensite. The presence of a matrix consisting of ferrite and a second phase of low-carbon martensite promoted the typical behavior of dual phase steel. In the x ray diffraction, the presence of retained austenite was not evidenced, indicating the efficiency of the cooling rate. The experiments confirmed the influence of different engineering parameters and intercritical treatment on the mechanical properties. The study enriches the current knowledge about the development of variables for the development of dual phase steel from microalloying elements. formability cost industry conditions highstrength strength severity Nb (Nb Ti (Ti temperatures 80 C °C 77 74 water samples 4342 434 2 434. HV001 HV HV0 01 HV0.01 lowcarbon carbon diffraction evidenced rate elements 8 7 43 HV00 0 HV0.0 4 HV0.
11.
Diretriz da SBC sobre Diagnóstico e Tratamento de Pacientes com Cardiomiopatia da Doença de Chagas – 2023 202 20 2
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Marin-Neto, José Antonio
; Rassi Jr, Anis
; Oliveira, Gláucia Maria Moraes
; Correia, Luís Claudio Lemos
; Ramos Júnior, Alberto Novaes
; Luquetti, Alejandro Ostermayer
; Hasslocher-Moreno, Alejandro Marcel
; Sousa, Andréa Silvestre de
; Paola, Angelo Amato Vincenzo de
; Sousa, Antônio Carlos Sobral
; Ribeiro, Antonio Luiz Pinho
; Correia Filho, Dalmo
; Souza, Dilma do Socorro Moraes de
; Cunha-Neto, Edecio
; Ramires, Felix Jose Alvarez
; Bacal, Fernando
; Nunes, Maria do Carmo Pereira
; Martinelli Filho, Martino
; Scanavacca, Maurício Ibrahim
; Saraiva, Roberto Magalhães
; Oliveira Júnior, Wilson Alves de
; Lorga-Filho, Adalberto Menezes
; Guimarães, Adriana de Jesus Benevides de Almeida
; Braga, Adriana Lopes Latado
; Oliveira, Adriana Sarmento de
; Sarabanda, Alvaro Valentim Lima
; Pinto, Ana Yecê das Neves
; Carmo, Andre Assis Lopes do
; Schmidt, Andre
; Costa, Andréa Rodrigues da
; Ianni, Barbara Maria
; Markman Filho, Brivaldo
; Rochitte, Carlos Eduardo
; Macêdo, Carolina Thé
; Mady, Charles
; Chevillard, Christophe
; Virgens, Cláudio Marcelo Bittencourt das
; Castro, Cleudson Nery de
; Britto, Constança Felicia De Paoli de Carvalho
; Pisani, Cristiano
; Rassi, Daniela do Carmo
; Sobral Filho, Dário Celestino
; Almeida, Dirceu Rodrigues de
; Bocchi, Edimar Alcides
; Mesquita, Evandro Tinoco
; Mendes, Fernanda de Souza Nogueira Sardinha
; Gondim, Francisca Tatiana Pereira
; Silva, Gilberto Marcelo Sperandio da
; Peixoto, Giselle de Lima
; Lima, Gustavo Glotz de
; Veloso, Henrique Horta
; Moreira, Henrique Turin
; Lopes, Hugo Bellotti
; Pinto, Ibraim Masciarelli Francisco
; Ferreira, João Marcos Bemfica Barbosa
; Nunes, João Paulo Silva
; Barreto-Filho, José Augusto Soares
; Saraiva, José Francisco Kerr
; Lannes-Vieira, Joseli
; Oliveira, Joselina Luzia Menezes
; Armaganijan, Luciana Vidal
; Martins, Luiz Cláudio
; Sangenis, Luiz Henrique Conde
; Barbosa, Marco Paulo Tomaz
; Almeida-Santos, Marcos Antonio
; Simões, Marcos Vinicius
; Yasuda, Maria Aparecida Shikanai
; Moreira, Maria da Consolação Vieira
; Higuchi, Maria de Lourdes
; Monteiro, Maria Rita de Cassia Costa
; Mediano, Mauro Felippe Felix
; Lima, Mayara Maia
; Oliveira, Maykon Tavares de
; Romano, Minna Moreira Dias
; Araujo, Nadjar Nitz Silva Lociks de
; Medeiros, Paulo de Tarso Jorge
; Alves, Renato Vieira
; Teixeira, Ricardo Alkmim
; Pedrosa, Roberto Coury
; Aras Junior, Roque
; Torres, Rosalia Morais
; Povoa, Rui Manoel dos Santos
; Rassi, Sergio Gabriel
; Alves, Silvia Marinho Martins
; Tavares, Suelene Brito do Nascimento
; Palmeira, Swamy Lima
; Silva Júnior, Telêmaco Luiz da
; Rodrigues, Thiago da Rocha
; Madrini Junior, Vagner
; Brant, Veruska Maia da Costa
; Dutra, Walderez Ornelas
; Dias, João Carlos Pinto
.
12.
Diretriz Brasileira de Dispositivos Cardíacos Eletrônicos Implantáveis – 2023 202 20 2
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Teixeira, Ricardo Alkmim
; Fagundes, Alexsandro Alves
; Baggio Junior, José Mário
; Oliveira, Júlio César de
; Medeiros, Paulo de Tarso Jorge
; Valdigem, Bruno Pereira
; Teno, Luiz Antônio Castilho
; Silva, Rodrigo Tavares
; Melo, Celso Salgado de
; Elias Neto, Jorge
; Moraes Júnior, Antonio Vitor
; Pedrosa, Anisio Alexandre Andrade
; Porto, Fernando Mello
; Brito Júnior, Hélio Lima de
; Souza, Thiago Gonçalves Schroder e
; Mateos, José Carlos Pachón
; Moraes, Luis Gustavo Belo de
; Forno, Alexander Romeno Janner Dal
; D’Avila, Andre Luiz Buchele
; Cavaco, Diogo Alberto de Magalhães
; Kuniyoshi, Ricardo Ryoshim
; Pimentel, Mauricio
; Camanho, Luiz Eduardo Montenegro
; Saad, Eduardo Benchimol
; Zimerman, Leandro Ioschpe
; Oliveira, Eduardo Bartholomay
; Scanavacca, Mauricio Ibrahim
; Martinelli Filho, Martino
; Lima, Carlos Eduardo Batista de
; Peixoto, Giselle de Lima
; Darrieux, Francisco Carlos da Costa
; Duarte, Jussara de Oliveira Pinheiro
; Galvão Filho, Silas dos Santos
; Costa, Eduardo Rodrigues Bento
; Mateo, Enrique Indalécio Pachón
; Melo, Sissy Lara De
; Rodrigues, Thiago da Rocha
; Rocha, Eduardo Arrais
; Hachul, Denise Tessariol
; Lorga Filho, Adalberto Menezes
; Nishioka, Silvana Angelina D’Orio
; Gadelha, Eduardo Barreto
; Costa, Roberto
; Andrade, Veridiana Silva de
; Torres, Gustavo Gomes
; Oliveira Neto, Nestor Rodrigues de
; Lucchese, Fernando Antonio
; Murad, Henrique
; Wanderley Neto, José
; Brofman, Paulo Roberto Slud
; Almeida, Rui M. S.
; Leal, João Carlos Ferreira
.
13.
[SciELO Preprints] - Guideline of the Brazilian Society of Cardiology on Diagnosis and Treatment of Patients with Chagas Disease Cardiomyopathy
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Marin-Neto, José Antonio
Rassi Jr., Anis
Moraes Oliveira, Gláucia M.
Lemos Correia, Luís Claudio
Novaes Ramos Jr., Alberto
Hasslocher-Moreno, Alejandro Marcel
Luquetti Ostermayer, Alejandro
Sousa, Andréa Silvestre de
Amato Vincenzo de Paola, Angelo
Sobral de Sousa, Antonio Carlos
Pinho Ribeiro, Antonio Luiz
Correia Filho, Dalmo
Moraes de Souza, Dilma do Socorro
Cunha-Neto, Edecio
J. A. Ramires, Felix
Bacal, Fernando
Pereira Nunes, Maria do Carmo
Martinelli Filho, Martino
Ibrahim Scanavacca, Maurício
Magalhães Saraiva, Roberto
Alves de Oliveira Júnior, Wilson
M. Lorga-Filho, Adalberto
de Jesus Benevides de Almeida Guimarães, Adriana
Lopes Latado Braga, Adriana
Sarmento de Oliveira, Adriana
V. L. Sarabanda, Alvaro
Yecê das Neves Pinto, Ana
Assis Lopes do Carmo, André
Schmidt, André
Costa, Andréa Rodrigues da
Ianni, Barbara Maria
Markman Filho, Brivaldo
Eduardo Rochitte, Carlos
Thé Macedo, Carolina
Mady, Charles
Chevillard, Christophe
Bittencourt das Virgens, Cláudio Marcelo
Nery de Castro, Cleudson
De Paoli de Carvalho Britto, Constança Felícia
Pisani, Cristiano
do Carmo Rassi, Daniela
C. Sobral Filho, Dario
Rodrigues Almeida, Dirceu
A. Bocchi, Edimar
T. Mesquita, Evandro
de Souza Nogueira Sardinha Mendes, Fernanda
Pereira, Francisca Tatiana
Sperandio da Silva, Gilberto Marcelo
de Lima Peixoto, Giselle
Glotz de Lima, Gustavo
H. Veloso, Henrique
Turin Moreira, Henrique
Bellotti Lopes, Hugo
Masciarelli Francisco Pinto, Ibraim
Pinto Dias, João Carlos
Bemfica, João Marcos
Silva-Nunes, João Paulo
Soares Barreto-Filho, José Augusto
Kerr Saraiva, José Francisco
Lannes-Vieira, Joseli
Menezes Oliveira, Joselina Luzia
V. Armaganijan, Luciana
Martins, Luiz Cláudio
C. Sangenis, Luiz Henrique
Barbosa, Marco Paulo
Almeida-Santos, Marcos Antônio
Simões, Marcos Vinicius
Shikanai-Yasuda, Maria Aparecida
Vieira Moreira, Maria da Consolação
Higuchi, Maria de Lourdes
Costa Monteiro, Maria Rita de Cássia
Felix Mediano, Mauro Felippe
Maia Lima, Mayara
T. Oliveira, Maykon
Moreira Dias Romano , Minna
Nitz, Nadjar
de Tarso Jorge Medeiros, Paulo
Vieira Alves, Renato
Alkmim Teixeira, Ricardo
Coury Pedrosa, Roberto
Aras, Roque
Morais Torres, Rosália
dos Santos Povoa, Rui Manoel
Rassi, Sérgio Gabriel
Salles Xavier, Sérgio
Marinho Martins Alves , Silvia
B. N. Tavares, Suelene
Lima Palmeira, Swamy
da Silva Junior, Telêmaco Luiz
da Rocha Rodrigues, Thiago
Madrini Junior, Vagner
Maia da Costa , Veruska
Dutra, Walderez
This guideline aimed to update the concepts and formulate the standards of conduct and scientific evidence that support them, regarding the diagnosis and treatment of the Cardiomyopathy of Chagas disease, with special emphasis on the rationality base that supported it.nbsp;
Chagas disease in the 21st century maintains an epidemiological pattern of endemicity in 21 Latin American countries. Researchers and managers from endemic and non-endemic countries point to the need to adopt comprehensive public health policies to effectively control the interhuman transmission of T. cruzi infection, and to obtain an optimized level of care for already infected individuals, focusing on diagnostic and therapeutic opportunistic opportunities.
nbsp;
Pathogenic and pathophysiological mechanisms of the Cardiomyopathy of Chagas disease were revisited after in-depth updating and the notion that necrosis and fibrosis are stimulated by tissue parasitic persistence and adverse immune reaction, as fundamental mechanisms, assisted by autonomic and microvascular disorders, was well established. Some of them have recently formed potential targets of therapies.nbsp;
The natural history of the acute and chronic phases was reviewed, with enhancement for oral transmission, indeterminate form and chronic syndromes. Recent meta-analyses of observational studies have estimated the risk of evolution from acute and indeterminate forms and mortality after chronic cardiomyopathy. Therapeutic approaches applicable to individuals with Indeterminate form of Chagas disease were specifically addressed. All methods to detect structural and/or functional alterations with various cardiac imaging techniques were also reviewed, with recommendations for use in various clinical scenarios. Mortality risk stratification based on the Rassi score, with recent studies of its application, was complemented by methods that detect myocardial fibrosis.nbsp;
The current methodology for etiological diagnosis and the consequent implications of trypanonomic treatment deserved a comprehensive and in-depth approach. Also the treatment of patients at risk or with heart failure, arrhythmias and thromboembolic events, based on pharmacological and complementary resources, received special attention. Additional chapters supported the conducts applicable to several special contexts, including t. cruzi/HIV co-infection, risk during surgeries, in pregnant women, in the reactivation of infection after heart transplantation, and others.nbsp; nbsp;nbsp;
Finally, two chapters of great social significance, addressing the structuring of specialized services to care for individuals with the Cardiomyopathy of Chagas disease, and reviewing the concepts of severe heart disease and its medical-labor implications completed this guideline.
Esta diretriz teve como objetivo principal atualizar os conceitos e formular as normas de conduta e evidências científicas que as suportam, quanto ao diagnóstico e tratamento da CDC, com especial ênfase na base de racionalidade que a embasou.
A DC no século XXI mantém padrão epidemiológico de endemicidade em 21 países da América Latina. Investigadores e gestores de países endêmicos e não endêmicos indigitam a necessidade de se adotarem políticas abrangentes, de saúde pública, para controle eficaz da transmissão inter-humanos da infecção pelo T. cruzi, e obter-se nível otimizado de atendimento aos indivíduos já infectados, com foco em oportunização diagnóstica e terapêutica.
Mecanismos patogênicos e fisiopatológicos da CDC foram revisitados após atualização aprofundada e ficou bem consolidada a noção de que necrose e fibrose sejam estimuladas pela persistência parasitária tissular e reação imune adversa, como mecanismos fundamentais, coadjuvados por distúrbios autonômicos e microvasculares. Alguns deles recentemente constituíram alvos potenciais de terapêuticas.
A história natural das fases aguda e crônica foi revista, com realce para a transmissão oral, a forma indeterminada e as síndromes crônicas. Metanálises recentes de estudos observacionais estimaram o risco de evolução a partir das formas aguda e indeterminada e de mortalidade após instalação da cardiomiopatia crônica. Condutas terapêuticas aplicáveis aos indivíduos com a FIDC foram abordadas especificamente. Todos os métodos para detectar alterações estruturais e/ou funcionais com variadas técnicas de imageamento cardíaco também foram revisados, com recomendações de uso nos vários cenários clínicos. Estratificação de risco de mortalidade fundamentada no escore de Rassi, com estudos recentes de sua aplicação, foi complementada por métodos que detectam fibrose miocárdica.
A metodologia atual para diagnóstico etiológico e as consequentes implicações do tratamento tripanossomicida mereceram enfoque abrangente e aprofundado. Também o tratamento de pacientes em risco ou com insuficiência cardíaca, arritmias e eventos tromboembólicos, baseado em recursos farmacológicos e complementares, recebeu especial atenção. Capítulos suplementares subsidiaram as condutas aplicáveis a diversos contextos especiais, entre eles o da co-infecção por T. cruzi/HIV, risco durante cirurgias, em grávidas, na reativação da infecção após transplante cardíacos, e outros.nbsp;nbsp;nbsp;
Por fim, dois capítulos de grande significado social, abordando a estruturação de serviços especializados para atendimento aos indivíduos com a CDC, e revisando os conceitos de cardiopatia grave e suas implicações médico-trabalhistas completaram esta diretriz.nbsp;
14.
Radiation Balance and Partitioning of Latent and Sensible Heat Fluxes Over a Lime Orchard in Eastern Amazon
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Pinto, João Vitor de Nóvoa
; Costa, Deborah Luciany Pires
; Nunes, Hildo Giuseppe Garcia Caldas
; Silva Junior, Alberto Cruz da
; Sousa, Adriano Marlisom Leão de
; Souza, Paulo Jorge de Oliveira Ponte de
; Ortega-Farias, Samuel
.
Abstract We investigate the balance of radiation and energy over a lime orchard in Eastern Amazon and how it relates to environmental conditions. We found that lime trees aged between 6 and 7 years old reflect 11.0% to 14.5% of incoming shortwave radiation, and the latent heat flux corresponds to 57.6% and 66.6% of the daily net radiation in the dry season (August - November) of 2020, and 2021, respectively. The soil heat flux represents 1% to 2% of the daily net radiation. Evapotranspiration was much lower than the reference evapotranspiration from August to November in 2019 and 2020. Evapotranspiration increased proportionally to the reference evapotranspiration from August to November 2021. This increase may be explained by weather conditions, such as the frequent rainfall during the dry season of 2021, in the same period when the energy for evapotranspiration is higher. Also, the high relative humidity between August and November 2021 may have favored the opening of stomata, increasing the orchard's evapotranspiration. The crop coefficient ranges between 0.74 and 0.84. conditions 110 11 0 11.0 145 14 5 14.5 576 57 57.6 666 66 66.6 2020 respectively 1 2 201 higher Also 202 stomata orchards s 074 74 0.7 084 84 0.84 11. 14. 57. 66. 20 07 0. 08 8 0.8
Resumo Investiga-se o balanço de radiação e energia sobre um pomar de limão na Amazônia Oriental e como ele se relaciona com as condições ambientais. Foi descoberto que a lima ácida Tahiti com idades entre 6 e 7 anos refletem de 11,0% a 14,5% da radiação de ondas curtas recebidas, e o fluxo de calor latente corresponde a 57,6% e 66,6% do saldo de radiação diária nos períodos secos (agosto a novembro) de 2020 e 2021, respectivamente. O fluxo de calor do solo representa de 1% a 2% do saldo de radiação diário. A evapotranspiração foi muito menor que a evapotranspiração de referência de agosto a novembro em 2019 e 2020. A evapotranspiração aumentou proporcionalmente à evapotranspiração de referência de agosto a novembro de 2021. Esse aumento pode ser explicado pelas condições climáticas, como as chuvas frequentes durante o período seco de 2021, no mesmo período em que a energia para evapotranspiração é maior. Além disso, a alta umidade relativa entre agosto e novembro de 2021 pode ter favorecido a abertura dos estômatos, aumentando a evapotranspiração do pomar. O coeficiente de cultura variou entre 0,74 e 0,84. Investigase Investiga ambientais 110 11 0 11,0 145 14 5 14,5 recebidas 576 57 57,6 666 66 66,6 202 respectivamente 1 2 diário 201 climáticas maior disso estômatos 074 74 0,7 084 84 0,84 11, 14, 57, 66, 20 07 0, 08 8 0,8
15.
Ventilador mecânico invasivo de emergência resistente e de fácil manutenção
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Fonte, Paulo J. R.
; Martinho, Alberto
; Pereira, Américo
; Gomes, Andreia
; Neves, Ângela
; Abrunhosa, Antero
; Bugalho, António
; Gabriel-Santos, António
; Grilo, António
; Carmo, Carlos
; Maltez, Elsa
; Nascimento, João Agostinho do
; Goes, João
; Martins, João
; Oliveira, João Pedro
; Pimenta, Jorge
; Santos, José Paulo
; Gil, Luís C.
; Lopes, Luís
; Pimenta, Mário
; Moreira, Olga
; Cunha, Orlando
; Sousa, Pedro Pinheiro de
; Póvoa, Pedro
; Cavaco-Gonçalves, Sandra
; Barroso, Susana
; Santos, Telmo G.
.
RESUMO Objetivo: Desenvolver um ventilador mecânico invasivo simples, resistente, seguro e eficiente que possa ser utilizado em áreas remotas do mundo ou zonas de guerra, em que a utilidade prática de equipamentos mais sofisticados é limitada por questões de manutenção, disponibilidade de peças, transporte e/ou custo. Métodos: O dispositivo implementa o modo de ventilação mandatória contínua com pressão controlada, complementado por um simples modo assisto-controlado. Pode-se também utilizar a pressão positiva contínua nas vias aéreas. Ao se evitar o fluxo contínuo de oxigênio ou ar, minimiza-se o consumo de gases comprimidos. As taxas respiratórias e as relações de tempo de inspiração e expiração são determinadas eletronicamente. Além disso, conta com um alarme de apneia/falta de energia. Resultados: Os perfis de pressão foram medidos para uma série de condições, sendo considerados ajustáveis dentro de uma margem de erro de ± 2,5cmH2O, e foram considerados bem estáveis dentro dessa variação durante um período de 41 horas. Os parâmetros de tempo do ciclo respiratório foram precisos dentro de alguns pontos percentuais durante o mesmo período. O dispositivo foi testado quanto à durabilidade por um período equivalente a 4 meses. Os testes químicos e biológicos não conseguiram identificar qualquer contaminação do gás por compostos orgânicos voláteis ou micro-organismos. Em comparação com um ventilador bem estabelecido, o teste de ventilação em um animal de grande porte mostrou que este poderia ser ventilado adequadamente durante um período de 60 minutos, sem quaisquer efeitos negativos perceptíveis durante o período subsequente de 24 horas. Conclusão: Este projeto de ventilador pode ser viável após novos testes em animais e aprovação formal pelas autoridades competentes, para aplicação clínica nas circunstâncias atípicas anteriormente mencionadas.
ABSTRACT Objective: To develop a simple, robust, safe and efficient invasive mechanical ventilator that can be used in remote areas of the world or war zones where the practical utility of more sophisticated equipment is limited by considerations of maintainability, availability of parts, transportation and/or cost. Methods: The device implements the pressure-controlled continuous mandatory ventilation mode, complemented by a simple assist-control mode. Continuous positive airway pressure is also possible. The consumption of compressed gases is minimized by avoiding a continuous flow of oxygen or air. Respiratory rates and inspiration/expiration time ratios are electronically determined, and an apnea/power loss alarm is provided. Results: The pressure profiles were measured for a range of conditions and found to be adjustable within a ± 2.5cmH2O error margin and stable well within this range over a 41-hour period. Respiratory cycle timing parameters were precise within a few percentage points over the same period. The device was tested for durability for an equivalent period of four months. Chemical and biological tests failed to identify any contamination of the gas by volatile organic compounds or microorganisms. A ventilation test on a large animal, in comparison with a well established ventilator, showed that the animal could be adequately ventilated over a period of 60 minutes, without any noticeable negative aftereffects during the subsequent 24-hour period. Conclusion: This ventilator design may be viable, after further animal tests and formal approval by the competent authorities, for clinical application in the abovementioned atypical circumstances.
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