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1.
Survival Analysis in Adult Heart Transplantation: Experience from a Brazilian Single Center Transplantation
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Ferraz, Diogo Luiz de Magalhães
; Cunha, Cristiano Berardo Carneiro da
; Figueira, Fernando Augusto Marinho dos Santos
; Silva, Igor Tiago Correia
; Monteiro, Verônica Soares
; Carneiro, Rodrigo Moreno Dias
; Castro, Bruna Gomes de
; Requião, Mariana Barreto
; Oliveira, Victor de França
; Silva, Patrícia Jaqueline Xavier da
; Tchaick, Rodrigo Mezzalira
; Furtado, Ana Flávia Paiva
; Silva Filha, Maria de Fátima Oliveira da
; Souza, Renato Correia Fernandes de
; Mello, Maria Julia Gonçalves de
; Gallindo, Rodrigo Melo
.
Brazilian Journal of Cardiovascular Surgery
- Journal Metrics
ABSTRACT Introduction: Heart transplantation is the gold standard for advanced heart failure treatment. This study examines the survival rates and risk factors for early mortality in adult heart transplant recipients at a Brazilian center. Methods: This retrospective cohort study involved 255 adult heart transplant patients from a single center in Brazil. Data were collected from medical records and databases including three defined periods (2012-2015, 2016-2019, and 2020-2022). Statistical analysis employed Kaplan-Meier survival curves, Cox proportional hazards analysis for 30-day mortality risk factors, and Log-rank tests. Results: The recipients were mostly male (74.9%), and the mean age was 46.6 years. Main causes of heart failure were idiopathic dilated cardiomyopathy (33.9%), Chagas cardiomyopathy (18%), and ischemic cardiomyopathy (14.3%). The study revealed an overall survival of 68.1% at one year, 58% at five years, and 40.8% at 10 years after heart transplantation. Survivalimproved significantly over time, combining the most recent periods (2016 to 2022) it was 73.2% in the first year and 63% in five years. The main risk factors for 30-day mortality were longer time on cardiopulmonary bypass, the initial period of transplants (2012 to 2015), older age of the donor, and nutritional status of the donor (overweight or obese). The main causes of death within 30 days post-transplant were infection and primary graft dysfunction. Conclusion: The survival analysis by period demonstrated that the increased surgical volume, coupled with the team’s experience and modifications to the immunosuppression protocol, contributed to the improved early and mid-term outcomes. Introduction treatment Methods 25 Brazil 20122015, 20122015 2012 2015, 2015 (2012-2015 20162019, 20162019 2016 2019, 2019 2016-2019 20202022. 20202022 2020 2022 . 2020-2022) KaplanMeier Kaplan Meier curves 30day day Logrank Log rank tests Results 74.9%, 749 74.9% , 74 9 (74.9%) 466 46 6 46. 33.9%, 339 33.9% 33 (33.9%) 18%, 18 18% (18%) 14.3%. 143 14.3% 14 3 (14.3%) 681 68 1 68.1 58 408 40 8 40.8 (201 732 73 2 73.2 63 bypass 2015) overweight obese. obese obese) posttransplant post dysfunction Conclusion volume teams team s protocol midterm mid term outcomes 2012201 201 (2012-201 2016201 2016-201 2020202 202 2020-2022 74.9 7 (74.9% 4 33.9 (33.9% (18% 14.3 (14.3% 68. 5 40. (20 73. 201220 20 (2012-20 201620 2016-20 202020 2020-202 74. (74.9 33. (33.9 (18 14. (14.3 (2 20122 (2012-2 20162 2016-2 20202 2020-20 (74. (33. (1 (14. ( (2012- 2016- 2020-2 (74 (33 (14 2020- (7 (3
2.
Thermal and mechanical properties of filaments for additive manufacturing
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Abreu, Iago Rodrigues de
; Nascimento Junior, Renato de Sousa
; Fortes, Allef Gabriel Da Silva
; Folkersma, Rudy
; Leitão, Luigi Veloso
; Marques, Fabio Delano Penha
; Sampaio, Arthur Antônio Sousa
; Castro, Layara Lorrana Ribeiro Leite de
; Andrade, Daniella Stepheny Carvalho
; Alves, Tatianny Soares
; Barbosa, Renata
.
Abstract This study explores the development of biodegradable filaments for additive manufacturing, aiming to create membranes for oil and water separation. Using a mixture of poly (lactic acid) and poly (butylene adipate co-terephthalate) (PLA/PBAT) with additives such as zinc oxide, biocide and carnauba wax. The research evaluates the potential of these materials in membrane prototyping for this application. Characterization techniques such as FTIR, XRD, DSC and tensile strength were employed. The results showed that the addition of the additives did not induce the formation of new bands in the FTIR. However, new diffraction peaks appeared in the composites indicating the presence of the zinc oxide. DSC revealed a double peak in melting and crystallization temperatures and the mechanical tests showed significant influence of additives on tensile strength. The composite filaments proved to be suitable for 3D printing, suggesting their applicability in the manufacture of filter membranes for oil and water separation. manufacturing separation lactic acid butylene coterephthalate co terephthalate co-terephthalate PLA/PBAT PLAPBAT PLA PBAT (PLA/PBAT oxide wax application FTIR XRD employed However D printing
3.
The SISBIOTA-Diptera Brazilian Network: A long-term survey of Diptera from unexplored Brazilian Western Arc of Amazon, Cerrado, and Pantanal SISBIOTADiptera SISBIOTA Network longterm long term Amazon Cerrado
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Lamas, Carlos José Einicker
; Fachin, Diego Aguilar
; Falaschi, Rafaela Lopes
; Alcantara, Daniel Máximo Correa de
; Ale-Rocha, Rosaly
; Amorim, Dalton de Souza
; Araújo, Maíra Xavier
; Ascendino, Sharlene
; Baldassio, Letícia
; Bellodi, Carolina Ferraz
; Bravo, Freddy
; Calhau, Julia
; Capellari, Renato Soares
; Carmo-Neto, Antonio Marcelino do
; Cegolin, Bianca Melo
; Couri, Márcia Souto
; Carvalho, Claudio José Barros de
; Dios, Rodrigo de Vilhena Perez
; Falcon, Aida Vanessa Gomez
; Fusari, Livia Maria
; Garcia, Carolina de Almeida
; Gil-Azevedo, Leonardo Henrique
; Gomes, Marina Morim
; Graciolli, Gustavo
; Gudin, Filipe Macedo
; Henriques, Augusto Loureiro
; Krolow, Tiago Kütter
; Mendes, Luanna Layla
; Limeira-de-Oliveira, Francisco
; Maia, Valéria Cid
; Marinoni, Luciane
; Mello, Ramon Luciano
; Mello-Patiu, Cátia Antunes de
; Morales, Mírian Nunes
; Oliveira, Sarah Siqueira
; Patiu, Claudemir
; Proença, Barbara
; Pujol-Luz, Cristiane Vieira de Assis
; Pujol-Luz, José Roberto
; Rafael, José Albertino
; Riccardi, Paula Raile
; Rodrigues, João Paulo Vinicios
; Roque, Fabio de Oliveira
; Sallum, Maria Anice Mureb
; Santis, Marcelo Domingos de
; Santos, Charles Morphy Dias dos
; Santos, Josenilson Rodrigues dos
; Savaris, Marcoandre
; Shimabukuro, Paloma Helena Fernandes
; Silva, Vera Cristina
; Schelesky-Prado, Daniel de Castro
; Silva-Neto, Alberto Moreira da
; Camargo, Alexssandro
; Sousa, Viviane Rodrigues de
; Urso-Guimarães, Maria Virginia
; Wiedenbrug, Sofia
; Yamaguchi, Carolina
; Nihei, Silvio Shigueo
.
ABSTRACT The SISBIOTA-BRASIL was a three-year multimillion-dollar research program of the Brazilian government to document plants and animals in endangered/understudied areas and biomes in Brazil. Distributional patterns and the historical events that generated them are extensively unknown regarding Brazilian fauna and flora. This deficiency hinders the development of conservation policies and the understanding of evolutionary processes. Conservation decisions depend on precise knowledge of the taxonomy and geographic distribution of species. Given such a premise, we proposed to research the diversity of Diptera of the Brazilian western arc of Amazon, Cerrado, and Pantanal in the states of Mato Grosso, Mato Grosso do Sul, and Rondônia. Three important biomes of the South American continent characterize these Brazilian states: Amazon forest, Cerrado (Brazilian Savannah), and Pantanal. Besides their ecological relevance, these biomes historically lack intensive entomological surveys. Therefore, they are much underrepresented in the Brazilian natural history collections and in the scientific literature, which is further aggravated by the fact that these areas are being exponentially and rapidly converted to commercial lands. Our project involved over 90 collaborators from 24 different Brazilian institutions and one from Colombia among researchers, postdocs, graduate and undergraduate students, and technicians. We processed and analyzed nearly 300,000 specimens from ~60 families of Diptera collected with a large variety of methods in the sampled areas. Here, we provide a detailed overview of the genera and species diversity of 41 families treated. Our results point to a total of 2,130 species and 514 genera compiled and identified for the three states altogether, with an increase of 41% and 29% in the numbers of species and genera known for the three states combined, respectively. Overall, the 10 most species-rich families were Tachinidae, Cecidomyiidae, Tabanidae, Psychodidae, Sarcophagidae, Stratiomyidae, Bombyliidae, Syrphidae, Tephritidae, and Asilidae. The 10 most diverse in the number of genera were Tachinidae, Stratiomyidae, Asilidae, Mycetophilidae, Syrphidae, Tabanidae, Muscidae, Dolichopodidae, Sarcophagidae, and Chloropidae. So far, 111 scientific papers were published regarding taxonomic, phylogenetic, and biogeographical aspects of the studied families, with the description of 101 new species and three new genera. We expect that additional publications will result from this investigation because several specimens are now curated and being researched by specialists. SISBIOTABRASIL SISBIOTA BRASIL threeyear year multimilliondollar multimillion dollar endangeredunderstudied endangered understudied Brazil flora processes premise Sul Rondônia forest Savannah, Savannah , Savannah) relevance surveys Therefore literature lands 9 2 researchers postdocs students technicians 300000 300 000 300,00 60 ~6 Here 4 treated 2130 130 2,13 51 altogether 29 combined respectively Overall 1 speciesrich rich Tachinidae Cecidomyiidae Tabanidae Psychodidae Sarcophagidae Stratiomyidae Bombyliidae Syrphidae Tephritidae Asilidae Mycetophilidae Muscidae Dolichopodidae Chloropidae far 11 taxonomic phylogenetic specialists 30000 30 00 300,0 6 ~ 213 13 2,1 5 3000 3 0 300, 21 2,
4.
High prevalence of hepatitis B virus and low vaccine response in children and adolescents in Northeastern Brazil
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Castro, Rogério Soares
; Cordeiro, Bárbara Silva
; Rolim, Marco Aurélio Ferreira
; Costa, Alessandra Porto de Macedo
; Santos, Max Diego Cruz
; Silva, Marcos Antonio Custódio Neto da
; Albuquerque, Ingrid de Campos
; Fonseca, Lena Maria Barros
; Pinho, João Renato Rebello
; Gouvêa, Michelle Soares Gomes
; Silva, Antônio Augusto Moura da
; Ferreira, Adalgisa de Souza Paiva
.
Revista do Instituto de Medicina Tropical de São Paulo
- Journal Metrics
ABSTRACT Children have an increased likelihood of becoming carriers of the chronic hepatitis B virus. A total of 1,381 children and adolescents were assessed in five municipalities of Maranhao State, Brazil, for detection of anti-HBc, HBsAg and anti-HBs serologic markers and sociodemographic and behavioral features. Among those who were HBsAg negative and anti-HBc negative, the proportion of anti-HBs positives was calculated after the individuals had completed the vaccination schedule. The robust variance of the Poisson’s regression model was used in order to have adjusted tables and calculate the prevalence ratio. Multivariate analysis was performed to identify the factors associated with the prevalence of anti-HBc with or without HBsAg and the vaccine response. It was observed that 163 children were anti-HBc positive and nine individuals were HBsAg positive. The factors associated with the infection were: municipality of residence (residing in Morros municipality or Humberto de Campos municipality), residence in a rural area, aged between 13 and 15 years old, and illicit drug use. The percentage of individuals who were anti-HBc negative and received all three doses of the vaccine was 48.5%. Among these, only 276 (38.9%) had antibodies at protective concentrations. In an adjusted analysis, Morros municipality presented an increased positivity of vaccine response (p < 0.001), and the age ranging between 6 and 10 years old presented a reduced frequency of response. This study reveals a high prevalence of current and past HBV infection within the targeted age group which, in addition to the low vaccination coverage and serological responses, raises concerns about the management of prevention measures, especially the quality of vaccination in these locations. virus 1381 1 381 1,38 State Brazil antiHBc, antiHBc anti HBc, HBc antiHBs HBs features schedule Poissons Poisson s ratio 16 residing municipality, , municipality) area use 485 48 5 48.5% 27 38.9% 389 38 9 (38.9% concentrations p 0.001, 0001 0.001 0 001 0.001) which responses measures locations 138 1,3 4 48.5 2 38.9 3 (38.9 000 0.00 00 1, 48. 38. (38. 0.0 (38 0. (3 (
5.
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
.
6.
IMPACTO-MR: um estudo brasileiro de plataforma nacional para avaliar infecções e multirresistência em unidades de terapia intensiva IMPACTOMR IMPACTO MR IMPACTO-MR
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Tomazini, Bruno M
; Nassar Jr, Antonio Paulo
; Lisboa, Thiago Costa
; Azevedo, Luciano César Pontes de
; Veiga, Viviane Cordeiro
; Catarino, Daniela Ghidetti Mangas
; Fogazzi, Debora Vacaro
; Arns, Beatriz
; Piastrelli, Filipe Teixeira
; Dietrich, Camila
; Negrelli, Karina Leal
; Jesuíno, Isabella de Andrade
; Reis, Luiz Fernando Lima
; Mattos, Renata Rodrigues de
; Pinheiro, Carla Cristina Gomes
; Luz, Mariane Nascimento
; Spadoni, Clayse Carla da Silva
; Moro, Elisângela Emilene
; Bueno, Flávia Regina
; Sampaio, Camila Santana Justo Cintra
; Silva, Débora Patrício
; Baldassare, Franca Pellison
; Silva, Ana Cecilia Alcantara
; Veiga, Thabata
; Barbante, Leticia
; Lambauer, Marianne
; Campos, Viviane Bezerra
; Santos, Elton
; Santos, Renato Hideo Nakawaga
; Laranjeiras, Ligia Nasi
; Valeis, Nanci
; Santucci, Eliana
; Miranda, Tamiris Abait
; Patrocínio, Ana Cristina Lagoeiro do
; Carvalho, Andréa de
; Sousa, Eduvirgens Maria Couto de
; Sousa, Ancelmo Honorato Ferraz de
; Malheiro, Daniel Tavares
; Bezerra, Isabella Lott
; Rodrigues, Mirian Batista
; Malicia, Julliana Chicuta
; Silva, Sabrina Souza da
; Gimenes, Bruna dos Passos
; Sesin, Guilhermo Prates
; Zavascki, Alexandre Prehn
; Sganzerla, Daniel
; Medeiros, Gregory Saraiva
; Santos, Rosa da Rosa Minho dos
; Silva, Fernanda Kelly Romeiro
; Cheno, Maysa Yukari
; Abrahão, Carolinne Ferreira
; Oliveira Junior, Haliton Alves de
; Rocha, Leonardo Lima
; Nunes Neto, Pedro Aniceto
; Pereira, Valéria Chagas
; Paciência, Luis Eduardo Miranda
; Bueno, Elaine Silva
; Caser, Eliana Bernadete
; Ribeiro, Larissa Zuqui
; Fernandes, Caio Cesar Ferreira
; Garcia, Juliana Mazzei
; Silva, Vanildes de Fátima Fernandes
; Santos, Alisson Junior dos
; Machado, Flávia Ribeiro
; Souza, Maria Aparecida de
; Ferronato, Bianca Ramos
; Urbano, Hugo Corrêa de Andrade
; Moreira, Danielle Conceição Aparecida
; Souza-Dantas, Vicente Cés de
; Duarte, Diego Meireles
; Coelho, Juliana
; Figueiredo, Rodrigo Cruvinel
; Foreque, Fernanda
; Romano, Thiago Gomes
; Cubos, Daniel
; Spirale, Vladimir Miguel
; Nogueira, Roberta Schiavon
; Maia, Israel Silva
; Zandonai, Cassio Luis
; Lovato, Wilson José
; Cerantola, Rodrigo Barbosa
; Toledo, Tatiana Gozzi Pancev
; Tomba, Pablo Oscar
; Almeida, Joyce Ramos de
; Sanches, Luciana Coelho
; Pierini, Leticia
; Cunha, Mariana
; Sousa, Michelle Tereza
; Azevedo, Bruna
; Dal-Pizzol, Felipe
; Damasio, Danusa de Castro
; Bainy, Marina Peres
; Beduhn, Dagoberta Alves Vieira
; Jatobá, Joana D’Arc Vila Nova
; Moura, Maria Tereza Farias de
; Rego, Leila Rezegue de Moraes
; Silva, Adria Vanessa da
; Oliveira, Luana Pontes
; Sodré Filho, Eliene Sá
; Santos, Silvana Soares dos
; Neves, Itallo de Lima
; Leão, Vanessa Cristina de Aquino
; Paes, João Lucidio Lobato
; Silva, Marielle Cristina Mendes
; Oliveira, Cláudio Dornas de
; Santiago, Raquel Caldeira Brant
; Paranhos, Jorge Luiz da Rocha
; Wiermann, Iany Grinezia da Silva
; Pedroso, Durval Ferreira Fonseca
; Sawada, Priscilla Yoshiko
; Prestes, Rejane Martins
; Nascimento, Glícia Cardoso
; Grion, Cintia Magalhães Carvalho
; Carrilho, Claudia Maria Dantas de Maio
; Dantas, Roberta Lacerda Almeida de Miranda
; Silva, Eliane Pereira
; Silva, Antônio Carlos da
; Oliveira, Sheila Mara Bezerra de
; Golin, Nicole Alberti
; Tregnago, Rogerio
; Lima, Valéria Paes
; Silva, Kamilla Grasielle Nunes da
; Boschi, Emerson
; Buffon, Viviane
; Machado, André Sant’Ana
; Capeletti, Leticia
; Foernges, Rafael Botelho
; Carvalho, Andréia Schubert de
; Oliveira Junior, Lúcio Couto de
; Oliveira, Daniela Cunha de
; Silva, Everton Macêdo
; Ribeiro, Julival
; Pereira, Francielle Constantino
; Salgado, Fernanda Borges
; Deutschendorf, Caroline
; Silva, Cristofer Farias da
; Gobatto, Andre Luiz Nunes
; Oliveira, Carolaine Bomfim de
; Dracoulakis, Marianna Deway Andrade
; Alvaia, Natália Oliveira Santos
; Souza, Roberta Machado de
; Araújo, Larissa Liz Cardoso de
; Melo, Rodrigo Morel Vieira de
; Passos, Luiz Carlos Santana
; Vidal, Claudia Fernanda de Lacerda
; Rodrigues, Fernanda Lopes de Albuquerque
; Kurtz, Pedro
; Shinotsuka, Cássia Righy
; Tavares, Maria Brandão
; Santana, Igor das Virgens
; Gavinho, Luciana Macedo da Silva
; Nascimento, Alaís Brito
; Pereira, Adriano J
; Cavalcanti, Alexandre Biasi
.
RESUMO Objetivo: Descrever o IMPACTO-MR, um estudo brasileiro de plataforma nacional em unidades de terapia intensiva focado no impacto das infecções por bactérias multirresistentes relacionadas à assistência à saúde. Métodos: Descrevemos a plataforma IMPACTO-MR, seu desenvolvimento, critérios para seleção das unidades de terapia intensiva, caracterização da coleta de dados, objetivos e projetos de pesquisa futuros a serem realizados na plataforma. Resultados: Os dados principais foram coletados por meio do Epimed Monitor System® e consistiram em dados demográficos, dados de comorbidades, estado funcional, escores clínicos, diagnóstico de internação e diagnósticos secundários, dados laboratoriais, clínicos e microbiológicos e suporte de órgãos durante a internação na unidade de terapia intensiva, entre outros. De outubro de 2019 a dezembro de 2020, 33.983 pacientes de 51 unidades de terapia intensiva foram incluídos no banco de dados principal. Conclusão: A plataforma IMPACTO-MR é um banco de dados clínico brasileiro de unidades de terapia intensiva focado na pesquisa do impacto das infecções por bactérias multirresistentes relacionadas à assistência à saúde. Essa plataforma fornece dados para o desenvolvimento e pesquisa de unidades de terapia intensiva individuais e ensaios clínicos observacionais e prospectivos multicêntricos. Objetivo IMPACTOMR, IMPACTOMR IMPACTO MR, MR saúde Métodos Resultados System demográficos comorbidades funcional secundários laboratoriais outros 201 2020 33983 33 983 33.98 5 principal Conclusão multicêntricos 20 202 3398 3 98 33.9 2 339 9 33.
ABSTRACT Objective: To describe the IMPACTO-MR, a Brazilian nationwide intensive care unit platform study focused on the impact of health care-associated infections due to multidrug-resistant bacteria. Methods: We described the IMPACTO-MR platform, its development, criteria for intensive care unit selection, characterization of core data collection, objectives, and future research projects to be held within the platform. Results: The core data were collected using the Epimed Monitor System® and consisted of demographic data, comorbidity data, functional status, clinical scores, admission diagnosis and secondary diagnoses, laboratory, clinical, and microbiological data, and organ support during intensive care unit stay, among others. From October 2019 to December 2020, 33,983 patients from 51 intensive care units were included in the core database. Conclusion: The IMPACTO-MR platform is a nationwide Brazilian intensive care unit clinical database focused on researching the impact of health care-associated infections due to multidrug-resistant bacteria. This platform provides data for individual intensive care unit development and research and multicenter observational and prospective trials. Objective IMPACTOMR, IMPACTOMR IMPACTO MR, MR careassociated associated multidrugresistant multidrug resistant bacteria Methods selection collection objectives Results System status scores diagnoses laboratory stay others 201 2020 33983 33 983 33,98 5 Conclusion trials 20 202 3398 3 98 33,9 2 339 9 33,
7.
[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;
8.
USE OF DESTRUCTIVE AND NON-DESTRUCTIVE METHODOLOGIES TO ESTIMATE STEM BIOMASS ACCUMULATION AND CARBON STOCK IN AN EUCALYPTUS FOREST
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Schettini, Bruno Leão Said
; Jacovine, Laércio Antônio Gonçalves
; Torres, Carlos Moreira Miquelino Eleto
; Carneiro, Angélica de Cássia Oliveira
; Castro, Renato Vinícius Oliveira
; Villanova, Paulo Henrique
; Rocha, Samuel José Silva Soares da
; Rufino, Maria Paula Miranda Xavier
; Oliveira Neto, Silvio Nolasco de
; Morais Júnior, Vicente Toledo Machado de
.
RESUMO A previsão de biomassa de madeira e estoque de carbono em florestas plantadas pode variar devido a limitações associadas à medição de parâmetros. Portanto, reduzir possíveis erros gerados na quantificação de biomassa e estoque de carbono é um passo importante na obtenção de dados confiáveis. O objetivo do estudo foi comparar o uso de metodologias destrutivas e não destrutivas para a previsão de biomassa e estoque de carbono em uma floresta plantada de eucalipto. As análises foram realizadas em 21 árvores e 3 metodologias para estimativa de estoque de carbono foram comparadas. Para a metodologia 1, uma amostra controle foi colhida, seccionada, pesada em campo e o estoque de carbono calculado com base nesses dados. A metodologia 2 também foi destrutiva, pois as árvores foram cortadas, cubadas e o estoque de carbono previsto com base nesses dados. A metodologia 3 foi não destrutiva, pois as árvores foram cubadas com auxílio de um equipamento e o estoque de carbono estimado foi baseado nesses dados. A biomassa e o estoque de carbono foram comparados pelo Teste F e nenhuma diferença estatística foi observada. Os dados foram separados de acordo com as classes diamétricas e comparados pelo teste de Kolmogorov-Smirnov, e novamente não foi observada diferença significativa. Além disso, três equações foram geradas com base no modelo de Schumacher & Hall e comparadas pelo modelo de teste de identidade e não foram observadas diferenças entre as metodologias. Assim, tanto as metodologias não destrutivas quanto as destrutivas aqui avaliadas foram eficazes e apresentaram resultados iguais à amostra controle. Além disso, o uso da metodologia não destrutiva reduz o tempo e o custo destinados à previsão de biomassa e estoque de carbono.
ABSTRACT Predicting wood biomass and carbon stock contents in planted forests can vary due to limitations associated with the measurement of parameters. Therefore, reducing possible errors generated over biomass and carbon stock quantification is an important step in obtaining reliable data. The study aimed to compare the use of destructive and non-destructive methodologies for predicting biomass and carbon stock in a planted Eucalyptus forest. Scaling was performed on 21 trees and 3 methodologies for carbon stock estimation were compared. For methodology 1, a control sample was harvested, sectioned, weighted in the field, and the carbon stock calculated based on these data. Methodology 2 was also destructive, as trees were harvested, scaled and the carbon stock predicted based on these data. Methodology 3 was non-destructive, as trees were scaled upright with the aid of equipment and the predicted carbon stock was based on these data. Biomass and carbon stock were compared by Test F and no statistical difference was observed. The data were separated according to diametric classes and compared by the Kolmogorov-Smirnov test, and again no significant difference was observed. Furthermore, three equations were generated based on the Schumacher & Hall model and compared by the identity test model and no differences between the methodologies were observed. Thus, both nondestructive and destructive methodologies herein evaluated were effective and showed equal results to the control sample. Moreover, the use of the non-destructive methodology reduces time and cost destined to predicting biomass and carbon stock.
9.
WOOD AND CHARCOAL PRODUCTION IN THE KILN-FURNACE SYSTEM: HOW DO THE COSTS AND REVENUES VARIATION AFFECT ECONOMIC FEASIBILITY?
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Schettini, Bruno Leão Said
; Jacovine, Laércio Antônio Gonçalves
; Torres, Carlos Moreira Miquelino Eleto
; Carneiro, Angélica de Cássia Oliveira
; Villanova, Paulo Henrique
; Rocha, Samuel José Silva Soares da
; Rufino, Maria Paula Miranda Xavier
; Castro, Renato Vinícius Oliveira
.
RESUMO Os métodos tradicionais de avaliação econômica de projetos de produção de madeira e carvão vegetal são baseados na análise de indicadores, porém, estão sujeitas a variações de mercado e incertezas. O estudo foiconduzido no município de Lamim-MG, para avaliação da viabilidade econômica na produção de madeira e carvão vegetal com o uso do sistema forno-fornalha, devido à necessidade de se conhecer a viabilidade econômica desse novo sistema produtivo. A análise de sensibilidade utilizando a técnica de Monte Carlo foirealizada nos custos e receitas. O fluxo de caixa para a produção de madeira e de carvão vegetal foielaborado e os seguintes critérios foram utilizados na análise econômica: Valor Presente Líquido (VPL), Razão Benefício Custo (B/C), Valor Periódico Equivalente (VPE) e Taxa Interna de Retorno (TIR). A análise de sensibilidade na produção de madeira e da produção de carvão vegetal foirealizada com o auxílio do software @RISK, de acordo com o parâmetro VPE, que permite comparar projetos com durações diferentes. A produção de madeira foiviável economicamente, com VPL de R$212,68 ha-1 e VPE de R$88,74 ha-1, com custo médio de produção de R$71,37 m3 madeira-1. O valor médio do VPE encontrado na análise de sensibilidade foide R$ 96,82 ha-1. A produção de carvão vegetal foiviável economicamente, com VPL de R$23,41 mdc carvão vegetal-1 e VPE de R$18,57 mdc carvão vegetal-1. O valor médio do VPE encontrado na análise de risco foide R$51,78 mdc carvão vegetal-1. Foi possível concluir que a produção de madeira de eucalipto e de carvão vegetal são viáveis economicamente na região.
ABSTRACT Traditional methods of economic evaluation of wood and charcoal production projects are based on indicators analysis, however, they are subject to market variations and uncertainties. The study was carried out in the city of Lamim, Minas Gerais State, to evaluate the economic viability of wood and charcoal production using the kiln-furnace system, due to the need to know the economic viability of this new production system. Sensitivity analysis using the Monte Carlo technique was performed on costs and revenues. The wood and charcoal production cash flow was elaborated and the following criteria were used in the economic analysis: Net Present Value (NPV), Benefit-Cost Ratio (BCR), Equivalent Periodic Value (EPV), and Internal Return Rate (IRR). The wood and charcoal production sensitivity analysis was carried out using the software @RISK, according to the VPE parameter, which allows comparing projects with different durations. Wood production was economically viable, with NPV of $40.26 ha-1 and EPV of $ 16.80 ha-1, with an average production cost of $13.51 m3 wood-1. The EPV mean value found in the sensitivity analysis was $18.33 ha-1. The charcoal production was economically viable, with NPV of $4.43 mdc charcoal-1 and EPV of $3.52 mdc charcoal-1. The EPV mean value found in the sensitivity analysis was $9.80 mdc charcoal-1. It was possible to conclude that the wood and charcoal production are economically viable in the region.
https://doi.org/10.1590/1806-908820210000039
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10.
Multimodal HIIT is More Efficient Than Moderate Continuous Training for Management of Body Composition, Lipid Profile and Glucose Metabolism in the Diabetic Elderly
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Louzada-Júnior, Adalberto
; da-Silva, Josimar Mota
; da-Silva, Vernon Furtado
; Castro, Antônio Clodoaldo Melo
; de-Freitas, Rodrigo Eufrásio
; Cavalcante, Joy Braga
; dos-Santos, Kennedy Maia
; Albuquerque, Ana Paula Azevedo
; Brandão, Paula Paraguassú
; Bello, Maria de Nazaré Dias
; Guimarães, Andrea Carmen
; Carvalho, Mauro Cesar Gurgel de Alencar
; Pernambuco, Carlos Soares
; Lima, Eder Benício Ramos
; Coelho, Renato Ramos
; Santos, César Augusto de Souza
; Bezerra, Jani Cleria Pereira
; Dantas, Estélio Henrique Martin
; Romeu-Silva, Paulo Martins
; da-Silva, Carolina Freitas
; Sampaio, Aristeia Nunes
; Valentim-Silva, João Rafael
.
SUMMARY: The exercise could play a central role to the fat management and glucose metabolism what can be a critical role in the health status of diabetic people, but the high intense exercise remains with controversial data about their effects. To identify the effect of the multimodal high-intensity interval training on body composition, lipid profile, and glucose metabolism in elderly diabetics. Methods: Elderly diabetic individuals (n = 48) were randomly divided in a Sedentary Control (SC) group, a Moderate-Intensity Continuous Training (MICT) group, and a High-Intensity Interval Training (HIIT) group. MICT and HITT were conducted over 60 days, 3x per week, with 40 minutes of exercise. Blood was collected prior to intervention, at four, and at eight weeks subsequently to assess glucose metabolism and lipid profiles. Body composition was determined before and after the intervention period. To verify the normality Kolmogorov-Smirnov statistical test was performed, followed by student "t" test or two-way ANOVA with Bonferroni’s post hoc test with significance of 5 % the Cohen’s f test to indicate the magnitude of the differences. HIIT significantly lowered cholesterol and triglyceride levels, and significantly lowered blood glucose and glycosylated haemoglobin levels (p<0.05). MICT and HIIT significantly increased levels of high-density lipoprotein, decreased total body mass and body mass index. HIIT resulted in significantly smaller waist circumferences, waist-to-hip ratios, and weight-to-height ratios over 60 days of training. HIIT is more effective than MICT for improving lipid and glycaemic profiles, decreasing body fat, and improving fat distribution elderly diabetics.
RESUMEN: El ejercicio podría desempeñar un papel central en el manejo de la grasa y el metabolismo de la glucosa, lo que puede ser un papel crítico en el estado de salud de las personas diabéticas, pero el ejercicio intenso intenso sigue teniendo datos controvertidos sobre sus efectos. El objetivo del estudio fue identificar el efecto del entrenamiento multimodal de intervalos de alta intensidad sobre la composición corporal, el perfil lipídico y el metabolismo de la glucosa en diabéticos de edad avanzada. Los individuos diabéticos de edad avanzada (n = 48) se dividieron aleatoriamente en un grupo de control sedentario (SC), un grupo de entrenamiento continuo de intensidad moderada (MICT) y un grupo de entrenamiento de intervalos de alta intensidad (HIIT). MICT y HITT se realizaron durante 60 días, 3 veces por semana, con 40 minutos de ejercicio. Se recogió sangre antes de la intervención, a las cuatro y a las ocho semanas posteriormente para evaluar el metabolismo de la glucosa y los perfiles de lípidos. La composición corporal se determinó antes y después del período de intervención. Para verificar la normalidad se realizó la prueba estadística de Kolmogorov-Smirnov, seguida de la prueba "t" de Student o ANOVA de dos vías con la prueba post hoc de Bonferroni con una significancia del 5 % de la prueba f de Cohen, indicando las diferencias. HIIT redujo significativamente los niveles de colesterol y triglicéridos, además de reducir de manera importante los niveles de glucosa en la sangre y la hemoglobina glicosilada (p <0.05). MICT y HIIT aumentaron significativamente los niveles de lipoproteína de alta densidad, disminuyeron la masa corporal total y el índice de masa corporal. HIIT resultó en circunferencias de cintura significativamente más pequeñas, relaciones cintura-cadera y relaciones peso-altura durante 60 días de entrenamiento. HIIT es más efectivo que MICT para mejorar los perfiles de lípidos y glucémicos, disminuir la grasa corporal y mejorar la distribución de grasa en los diabéticos de edad avanzada.
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11.
Quality of Briquettes Produced with Jatropha and Eucalyptus
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Santos, Cynthia Patricia de Sousa
; Santos, Rosimeire Cavalcante dos
; Carneiro, Angélica de Cássia Oliveira
; Castro, Ana Flávia Neves Mendes
; Castro, Renato Vinícius Oliveira
; Costa, Sarah Esther de Lima
; Gomes, Izabelle Rodrigues Ferreira
; Mairinck, Krisnara Soares
.
Abstract Our study aims to determine the energetic quality of residues from the manufacturing of jatropha and eucalyptus, as well as to evaluate the physical properties of the briquettes made with different proportions of these biomasses. The following proportions were used for this study: 100% eucalyptus; 75% eucalyptus; 50% jatropha and 50% eucalyptus; 75% jatropha; and 100% jatropha. The apparent density of the residues, the immediate chemical product, the highest calorific value (HCV), the apparent density, the energy density, the usable calorific value (UCV), the lowest calorific value (LCV), the breaking strength of the briquettes (FR) and the hydroscopic moisture balance (HMB) were verified. Although the energetic characteristics of the jatropha residues are not superior to those of eucalyptus, this biomass adds favorable mechanical characteristics to the briquettes comprised of greater proportions of jatropha to eucalyptus, guaranteeing the energetic properties of the briquette, as well as reducing the production cost.
https://doi.org/10.1590/2179-8087.100017
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12.
THE ECONOMIC ANALYSIS OF WOOD AND CHARCOAL PRODUCTION BY Eucalyptus REFORESTATION IN NORTHWESTERN MINAS GERAIS
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Castro, Ana Flávia Neves Mendes
; Castro, Renato Vinícius Oliveira
; Ataíde, Glauciana da Mata
; Santos, Rosimeire Cavalcante dos
; Costa, Lidiomar Soares da
; Vieira, Renato da Silva
.
RESUMO O presente estudo teve como objetivo analisar economicamente a produção de madeira e carvão vegetal de um povoamento de Eucalyptus estratificado em três classes de produtividade no noroeste de Minas Gerais. Foram utilizados dados de povoamentos de Eucalyptus não desbastados cuja área foi estratificada em alta, média e baixa produtividade, sendo descritas pelo modelo Logístico. Obtidos os dados, realizou-se então a avaliação econômica da produção de madeira e para produção de carvão. A avaliação econômica deu-se por meio dos indicadores: valor presente líquido (VPL) e taxa interna de retorno (TIR) em função dos preços da madeira e do carvão vegetal, do rendimento da madeira em carvão e da distância de transporte da madeira até a unidade de produção de carvão. A viabilidade econômica da produção de madeira e de carvão vegetal de Eucalyptus depende da capacidade produtiva da área de instalação do povoamento. A viabilidade de produção de madeira e de carvão vegetal é sensível às variações dos preços de ambos, do rendimento da madeira em carvão e da distância de transporte da área de produção à unidade de processamento.
ABSTRACT This study aimed to analyze economically the production of wood and charcoal from a Eucalyptus plantation stratified in three classes of productivity in northwestern Minas Gerais. Were used data from not thinned Eucalyptus stands whose area was stratified in high, medium and low productivity, being described by the logistic model. The data were obtained and the economic evaluation of wood production and charcoal production was carried out. The economic evaluation was made by means of the indicators: Net present value (NPV) and internal rate of return (IRR) as a function of the prices of wood and charcoal, the yield of wood in charcoal and the transport distance of wood to the charcoal production unit. The economic viability of production of Eucalyptus wood and charcoal depends on the productive capacity of the forest stand. The viability of timber and charcoal production is sensitive to the variations in the prices of both, the yield of wood in charcoal and the transport distance from the production area to the processing unit.
https://doi.org/10.1590/1806-90882019000100010
1001 downloads
13.
Valores de referência para a difusão do monóxido de carbono (fator de transferência) em uma amostra brasileira da raça branca
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Guimarães, Virgínia Pacheco
; Miranda, Débora Marques de
; Reis, Marco Antônio Soares
; Andrade, Thamine Lessa
; Matos, Renato Lopes
; Soares, Maria Raquel
; Pereira, Carlos Alberto de Castro
.
RESUMO Objetivo Derivar valores de referência em adultos brancos para a difusão do monóxido de carbono (DCO) em uma amostra de diferentes locais do Brasil por um mesmo modelo de equipamento (Sensormedics) e comparar os resultados com os derivados pelas equações de Crapo, Miller e Neder, e da proposta pelo Global Lung Initiative (GLI). Métodos Os testes foram realizados de acordo com as normas sugeridas pela ATS/ERS, em 2005, em seis cidades brasileiras, em 120 voluntários adultos de cada sexo, não fumantes, sem anemia referida e sem doenças pulmonares ou cardíacas. Os previstos foram derivados por regressões lineares e as diferenças entre os valores previstos por alguns autores e os observados no estudo atual foram calculadas. Resultados Nos homens, a idade variou de 25 a 88 anos e a estatura, de 156 a 189 cm. Nas mulheres, a idade variou de 21 a 92 anos e a estatura, de 140 a 176 cm. A DCO se correlacionou de maneira significativa positivamente com a estatura e negativamente com a idade. Os valores previstos pelas equações de Crapo, Neder e Miller foram maiores em comparação aos obtidos pelo estudo atual (p<0,01) em ambos os sexos. Nos homens, os valores não diferiram quando comparados aos calculados pelo GLI (p=0,29); nas mulheres, os valores derivados pelo GLI foram levemente maiores: 0,99 mL/min/mmHg (p<0,01). Conclusões Novos valores previstos para a DCO foram derivados em uma amostra de adultos brancos no Brasil. Os valores previstos são semelhantes aos compilados pelas equações GLI e diferem de equações propostas anteriormente.
ABSTRACT Objective To derive reference values from white race adults, for DCO in a sample from different sites in Brazil, through the same equipment model (Sensormedics), and compare the results with the derivatives from Crapo, Miller, Neder equations and from the Global Lung Initiative (GLI) proposal. Methods The tests were performed according to the norms suggested by ATS/ERS in 2005 in six Brazilian cities, with 120 adult volunteers of each gender, non-smokers, without referred anemia and without lung or cardio diseases. The expected values were derived from linear regressions and the differences between the values forecasted by some authors and the ones observed in the current study were calculated. Results Among men, the age varied between 25 and 88 years old, and the height varied between 140 and 176 cm. DCO was correlated significantly and positively with the height and negatively with the age. The values forecasted by Crapo, Neder, and Miller equations were higher in comparison with the ones obtained by the current study (p<0.01) in both genders. Among men, the values did not differ when compared to the ones calculated by GLI (p=0.29); among women, the values derived by GLI were slightly higher: 0.99 ml/min/mmHg (p<0.01). Conclusion new values forecasted for DCO were derived in a sample of white adults in Brazil. The forecasted values are similar to the ones complied by GLI equations and differ from the previously proposed equations.
https://doi.org/10.1590/1806-3713/e20180262
2140 downloads
14.
Feasibility of wood production according to productivity class and rotation criteria
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Castro, Renato Vinícius Oliveira
; Ataíde, Glauciana da Mata
; Castro, Ana Flávia Neves Mendes
; Araújo Júnior, Carlos Alberto
; Santos, Rosimeire Cavalcante dos
; Costa, Lidiomar Soares da
.
Resumo: O objetivo deste trabalho foi avaliar o efeito da rotação florestal sobre a viabilidade técnica e econômica da produção de madeira de eucalipto para carvão, em diferentes classes de produtividade. Utilizaram-se dados de povoamentos de Eucalyptus cuja área foi estratificada em três classes de produtividade: alta, média e baixa. A cada classe, aplicaram-se diferentes critérios de rotação florestal, conforme: idade de máxima produtividade, idade econômica de corte, única idade de corte e rotação sem parâmetro técnico. Realizaram-se análises de viabilidade econômica e de produção para o horizonte de planejamento de 21 anos. Para a rotação sem parâmetro técnico, realizou-se uma simulação pelo método de Monte Carlo. Para todos os critérios de rotação, observou-se viabilidade para as classes de alta e média produtividade, e inviabilidade para a classe de baixa produtividade. Para a rotação sem parâmetro técnico, não há chance de o projeto ser inviável. A viabilidade da produção de madeira para carvão nas condições estudadas depende da capacidade produtiva do local, para qualquer critério de rotação adotado. O critério de rotação influencia a rentabilidade, cuja definição, em razão da capacidade produtiva do local, contribui para a maximização da produção e para o retorno econômico do projeto florestal nas condições estudadas.
Abstract: The objective of this work was to evaluate the effect of forest rotation on the technical and economic feasibility of eucalyptus wood production for charcoal, in different productivity classes. Data came from Eucalyptus stands whose area was stratified into three classes of productivity: high, medium, and low. To each class, a different criterion of forest rotation was applied, as follows: age of maximum productivity, economic rotation age, single harvest age, and no technical parameter. Analyses of economic feasibility and production were performed for a 21-year planning horizon. For rotation without a technical parameter, a simulation by the Monte Carlo method was performed. For all rotation criteria, feasibility was observed for high- and medium-productivity classes, and unfeasibility for the low-productivity class. For rotation without a technical parameter, there is no chance for the project to be unfeasible. Wood production viability for charcoal under the studied conditions depends on the productivity class, for any rotation criterion adopted. Rotation criterion influences profitability, whose definition, according to productivity class, contributes to forest production maximization and to the economic return of the project, under the studied conditions.
https://doi.org/10.1590/s1678-3921.pab2019.v54.00778
793 downloads
15.
Avaliação ambiental de BTEX (benzeno, tolueno, etilbenzeno, xilenos) e biomarcadores de genotoxicidade em trabalhadores de postos de combustíveis
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Amaral, Isabele Campos Costa
; Carvalho, Leandro Vargas Barreto de
; Pimentel, Joyce Neri da Silva
; Pereira, Angélica Cardoso
; Vieira, Jucilene Aparecida
; Castro, Vinicio Soares de
; Borges, Renato Marçullo
; Alves, Sérgio Rabello
; Nogueira, Simone Mitri
; Tabalipa, Marianne de Medeiros
; Otero, Ubirani Barros
; Oliveira, Katia Maria Pinto Guedes de
; Corrêa, Sérgio Machado
; Fonseca, Antônio Sérgio Almeida
; Moreira, Josino Costa
; Peres, Frederico
; Teixeira, Liliane Reis
; Menezes, Marco Antônio Carneiro
; Mattos, Rita de Cássia Oliveira da Costa
; Sarcinelli, Paula de Novaes
; Larentis, Ariane Leites
.
Resumo Introdução: trabalhadores de postos de combustíveis estão expostos às diversas substâncias químicas presentes no ambiente de trabalho, destacando-se entre elas o benzeno, devido às suas propriedades carcinogênicas. Objetivo: avaliar os danos genotóxicos relacionados à exposição ocupacional ao BTEX (benzeno, tolueno, etilbenzeno, xilenos) em trabalhadores de cinco postos de combustíveis do município do Rio de Janeiro, RJ. Metodologia: foram analisadas concentrações de BTEX no ar; atividades das enzimas catalase e glutationa S-transferase; e ensaio cometa em amostras de sangue total de 97 trabalhadores. Resultados: as concentrações de BTEX estavam dentro dos valores preconizados pela NR 15, incluindo Anexo 13-A. Entretanto, uma oscilação nos resultados de ensaio cometa foi observada entre os trabalhadores dos diferentes postos de combustíveis, principalmente em trabalhadores de postos com menores concentrações de benzeno. Discussão: esse resultado está de acordo com a literatura científica atual, que indica uma curva dose-resposta supralinear para o benzeno, observando-se em baixas concentrações um aumento não linear do risco de leucemia, provavelmente relacionado à maior metabolização do benzeno e à maior produção de seus metabólitos tóxicos nessas concentrações. Conclusão: os resultados deste estudo sugerem que a exposição ao BTEX, mesmo em baixas concentrações, contribui para o risco genotóxico à saúde humana.
Abstract Introduction: gas station workers are exposed to several chemicals in their workplace, highlighting benzene, due to its carcinogenic properties. Objective: to assess the genotoxic damage related to occupational exposure to BTEX (benzene, toluene, ethylbenzene, xylenes) in workers of five gas stations in Rio de Janeiro, RJ. Methods: analysis of BTEX concentrations in the air were carried out; as well as activities of catalase and glutathione S-transferase; and comet assay in whole blood samples of 97 workers. Results: BTEX levels were within the Brazilian threshold levels recommended by the NR 15, including Annex 13-A. However, an oscillation of the comet assay results was observed among workers of different gas stations, mainly in workers from gas stations with lower concentrations of benzene. Discussion: this result is in accordance with the current international scientific literature that indicates a supralinear exposure-response curve for benzene. In lower concentrations we could observe a high non-linear risk of leukemia, probably due to a greater benzene metabolism and a higher production of its toxic metabolites. Conclusion: the results of this study suggest that exposure to BTEX, even in low concentrations, contributes to genotoxic risk to human health.
https://doi.org/10.1590/2317-6369000124515
15501 downloads
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