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BACKGROUND The Golden Syrian hamster (Mesocricetus auratus), Ferrets (Mustela putorius furo), and macaques have been described as useful laboratory animals naturally susceptible to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. OBJECTIVES To study the mechanism of lung injury, we describe the histopathological features of SARS-CoV-2 infection in Golden Syrian hamsters inoculated intranasally with the A.2 Brazilian strain. METHODS Hamsters were intranasally inoculated with the A.2 variant and euthanised at 3-, 5-, 10- and 15-days post-inoculation. The physical examination and body weight were recorded daily. Neutralising antibodies and viral RNA load of the respiratory tract were assessed during necropsies. FINDINGS The coronavirus disease 2019 (COVID-19) model presented body weight loss, high levels of respiratory viral RNA load, severe segmentary pneumonitis, and bronchial fistula besides lymphatic trapping and infiltration, like the human SARS-COV-2 pathogenesis. The presence of subepithelial lymphoeosinophilic infiltrate was highlighted in our results; it contributed to the detachment of SARS-CoV-2 nucleocapsid-positive epithelial cells resulting in the infectious cell plugs. MAIN CONCLUSIONS The SARS-CoV-2 caused segmentary pneumonia and vascular damage. In our comprehension, the infectious cell plugs, as being aspirated from the upper respiratory tract into the terminal bronchial lumen, work as a “Trojan horse”, thus contributing to the dissemination of the SARS-CoV-2 infection into specific regions of the deep lung parenchyma. Mesocricetus auratus, auratus , auratus) Mustela furo, furo furo) SARSCoV2 SARSCoV SARS CoV (SARS-CoV-2 injury SARS-CoV- A2 A A. strain 3, 3 3- 5, 5 5- 10 15days days 15 postinoculation. postinoculation post inoculation. inoculation post-inoculation daily necropsies 201 COVID19 COVID 19 (COVID-19 loss pneumonitis infiltration SARSCOV2 SARSCOV COV SARS-COV- pathogenesis results nucleocapsidpositive nucleocapsid positive plugs damage comprehension lumen Trojan horse, horse horse” parenchyma (SARS-CoV- SARS-CoV 1 20 COVID1 (COVID-1 SARS-COV (SARS-CoV (COVID- (COVID

https://doi.org/10.1590/0074-02760240100

Meta-analysis of new technologies in post-harvest of tropical flowers Metaanalysis Meta analysis postharvest post harvest
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Cunha Neto, Antonio Rodrigues da

; Paiva, Patrícia Duarte de Oliveira

; Ponce, Mariza Moraes

; Calvelli, João Vitor Barbosa

; Barbosa, Sandro

Ornamental Horticulture

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2023, Volume 29 N. 2 Pages 224 - 237

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo O setor de plantas ornamentais está crescendo devido ao desenvolvimento de novas espécies e tecnologias. O foco da pesquisa é estender a vida útil das flores cortadas para manter a qualidade e a satisfação do cliente. Técnicas como armazenamento em baixas temperaturas, uso de soluções conservantes e novas tecnologias como a nanotecnologia podem ajudar a manter a qualidade da haste floral. A presente revisão tem como objetivo analisar diversas técnicas utilizadas para prolongar a vida útil de hastes florais pós-colheita. Para tal, foi realizada uma busca sistemática nas principais plataformas indexadoras de estudos publicados em 2023, os quais foram submetidos a uma meta-análise. Calculou-se o tamanho do efeito global e o efeito por moderadores, com o intuito de auxiliar na tomada de decisão para futuros estudos na floricultura. Os resultados indicaram que a adição de conservantes nas soluções, variações nas temperaturas de armazenamento e o uso de campos eletromagnéticos foram as técnicas mais eficazes para prolongar a vida útil das hastes florais em vasos. No entanto, técnicas como o condicionamento a seco e o uso de filmes de revestimento não apresentaram resultados significativos em manter a qualidade comercial. Foi verificado que as pesquisas com soluções conservantes ainda são o principal foco dos trabalhos de grandes centros de tecnologia de flores de corte. A meta-análise destaca a importância de aprofundar e/ou aperfeiçoar as pesquisas em técnicas que apresentaram resultados menos eficazes e desenvolver novas tecnologias para prolongar a vida útil das hastes florais, a fim de melhorar a qualidade pós-colheita. cliente floral póscolheita. póscolheita pós colheita. colheita pós-colheita tal 2023 metaanálise. metaanálise meta análise. análise Calculouse Calculou se moderadores floricultura vasos entanto comercial corte eou ou 202 20 2

Abstract The ornamental plant sector is growing due to the development of new species and technologies. The focus of research is to extend the shelf life of cut flowers to maintain quality and customer satisfaction. Techniques such as storage at low temperatures, use of preservative solutions, and new technologies such as nanotechnology can help maintain the quality of the floral stem. The present review aims to analyze various techniques used to extend the post-harvest shelf life of floral stems. For this purpose, a systematic search was conducted on major indexing platforms for studies published in 2023, which were subjected to a meta-analysis. The global effect size and moderator effects were calculated to assist in decision-making for future studies in floriculture. The results indicated that the addition of preservatives to solutions, variations in storage temperature, and the use of electromagnetic fields were the most effective techniques in extending the shelf life of cut flowers. However, techniques such as dry conditioning and the use of coating films did not show significant results in maintaining commercial quality. It was found that conservative solution research is still the main focus of research at major cut flower technology centers. The meta-analysis highlights the importance of further deepening and/or improving research on techniques that have shown less effective results, and developing new technologies to prolong the vase life of floral stems in order to improve post-harvest quality. satisfaction temperatures solutions stem postharvest post harvest purpose 2023 metaanalysis. metaanalysis meta analysis. analysis decisionmaking decision making floriculture temperature However centers andor or 202 20 2

https://doi.org/10.1590/2447-536x.v29i2.2643

Early Six-Minute Walk Test May Predict Midterm Outcomes Following Coronary Artery Bypass Grafting SixMinute Six Minute
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Pauletti, Hayanne O.

; Gomes, Walter José

; Rocco, Isadora S.

; Viceconte, Marcela

; Garcia, Bruna Caroline Matos

; Marcondi, Natasha O.

; Bublitz, Caroline B.

; Costa, Ariele dos Santos

; Paiva, Thâmara Pequeno de

; Spina, Giovanna Domingues

; Begot, Isis

; Silva, Célia Camelo

; Moreira, Rita Simone L.

; Branco, João Nelson Rodrigues

; Vargas, Guilherme Flora

; Hossne Jr., Nelson A.

; Arena, Ross

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

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2023, Volume 38 N. 4 elocation e20220459

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: This study aims to investigate the ability of the six-minute walk distance (6MWD) as a prognostic marker for midterm clinical outcomes three months after coronary artery bypass grafting (CABG), to identify possible predictors of fall in 6MWD in the early postoperative period, and to establish the percentage fall in early postoperative 6MWD, considering the preoperative baseline as 100%. Methods: A prospective cohort of patients undergoing elective CABG were included. The percentage fall in 6MWD was assessed by the difference between preoperative and postoperative day (POD) five. Clinical outcomes were evaluated three months after hospital discharge. Results: There was a significant decrease in 6MWD on POD5 compared with preoperative baseline values (percentage fall of 32.5±16.5%, P<0.0001). Linear regression analysis showed an independent association of the percentage fall of 6MWD with cardiopulmonary bypass (CPB) and preoperative inspiratory muscle strength. Receiver operating characteristic curve analysis revealed that the best cutoff value of percentage fall in 6MWD to predict poorer clinical outcomes at three months was 34.6% (area under the curve = 0.82, sensitivity = 78.95%, specificity = 76.19%, P=0.0001). Conclusion: This study indicates that a cutoff value of 34.6% in percentage fall of 6MWD on POD5 was able to predict poorer clinical outcomes at three months of follow-up after CABG. Use of CPB and preoperative inspiratory muscle strength were independent predictors of percentage fall of 6MWD in the postoperative period. These findings further support the clinical application of 6MWD and propose an inpatient preventive strategy to guide clinical management over time. Objective sixminute six minute MWD (6MWD CABG, , (CABG) period 100 100% Methods included POD (POD five discharge Results 325165 32 5 16 32.5±16.5% P<0.0001. P00001 P P<0.0001 . 0 0001 P<0.0001) (CPB 346 34 6 34.6 area 082 82 0.82 7895 78 95 78.95% 7619 76 19 76.19% P=0.0001. P=0.0001 P=0.0001) Conclusion followup follow up time (CABG 10 32516 3 1 32.5±16.5 P0000 P<0.000 000 34. 08 8 0.8 789 7 9 78.95 761 76.19 P=0.000 3251 32.5±16. P000 P<0.00 00 0. 78.9 76.1 P=0.00 325 32.5±16 P00 P<0.0 78. 76. P=0.0 32.5±1 P0 P<0. P=0. 32.5± P<0 P=0 32.5 P< P= 32.

https://doi.org/10.21470/1678-9741-2022-0459

Aplicação da Análise Fatorial para Determinação da Vulnerabilidade Hidrometeorológica para o Sub Médio São Francisco
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Ataide, Lorena Conceição Paiva de

; Silva, Madson Tavares

; Serrão, Edivaldo Afonso de Oliveira

; Dantas, Leydson Galvíncio

; Almeida, Gabio Stalin Soares

; Campos, João Hugo Baracuy da Cunha

; Silva, Vicente de Paulo Rodrigues da

; Silva, Fabrício Daniel dos Santos

Revista Brasileira de Meteorologia

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oct 2022, Volume 37 N. 4 Pages 405 - 417

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo A vulnerabilidade dos recursos hídricos à curto e longo prazo está relacionada à diversos fatores como alterações no uso e cobertura da terra e mudanças climáticas. Dada a necessidade de mais informações para auxiliar na gestão da seca e no planejamento do uso da água no semiárido brasileiro, este trabalho segue duas linhas: (I) Analisar a variabilidade espaço-temporal das componentes hidroclimáticas da Bacia Hidrográfica do Submédio São Francisco; (II) Criar um índice de Vulnerabilidade Hídrica a partir da análise fatorial. Foram identificados dois fatores predominantes na bacia, solo e clima, os quais são constituídos por variáveis hidroclimaticas distribuídas espaço e temporalmente. Com o IVH, foi possível identificar as áreas que possuem o menor índice, ou seja, aquelas que são mais vulneráveis aos efeitos das mudanças climáticas, indicando que com a instabilidade no regime de chuvas deverá ocorrer menor recarga dos aquíferos, impedindo que, na época da estiagem, os reservatórios continuem a manter sua produção para o abastecimento, podendo ainda, apresentar riscos como aumento da temperatura e alterações no regime hídrico. climáticas brasileiro linhas I (I espaçotemporal temporal Francisco II (II fatorial bacia clima temporalmente IVH seja aquíferos estiagem abastecimento ainda hídrico

Abstract The vulnerability of water resources in the short and long term is related to several factors such as changes in land use and cover and climate change. Given the need for more information to assist in drought management and water use planning in the Brazilian semi-arid region, this work follows two lines: (I) To analyze the spatio-temporal variability of the hydroclimatic components of the Submédio São Francisco Watershed; (II) Create a Water Vulnerability Index from factor analysis. Two predominant factors were identified in the basin, soil and climate, which are constituted by hydroclimatic variables distributed in space and time. With the IVH, it was possible to identify the areas that have the lowest index, that is, those that are more vulnerable to the effects of climate change, indicating that with the instability in the rainfall regime, there should be less recharge of the aquifers, preventing that, at the time of the drought, the reservoirs continue to maintain their production for supply, and may also present risks such as increased temperature and changes in the water regime. change semiarid semi arid region lines I (I spatiotemporal spatio temporal Watershed II (II analysis basin IVH index regime aquifers supply

https://doi.org/10.1590/0102-77863740021

Impactos del cuidado de personas con cáncer en la vida del cuidador y la dinámica familiar
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Lopes do Carmo, Monica Maria

; de Mendonça, Erica Toledo

; de Oliveira, Deíse Moura

; do Carmo Pinto Coelho Paiva, Andyara

; Andrade, João Vitor

; Rodrigues Lins, Ana Luiza

Revista Cubana de Enfermería

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jun 2021, Volume 37 N. 2 elocation e3679

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT Introduction: The existence of a cancer patient within any family implies several challenges and leads to a necessity for reorganization of the whole family in order to provide care for this individual, sometimes ceasing to take care of themselves and generating new demands, often neglected. Objective: To understand, from the perspective of family caregivers, how the process of caring for the person with cancer impacts the caregiver’s life and family dynamics. Methods: Descriptive and exploratory study, with a qualitative approach, carried out, from December 2016 to January 2017, with family caregivers of people with cancer, in Viçosa City, Minas Gerais, Brazil. Data collection was carried out with seven family caregivers, using a guide with open questions and structured on the basis of the Zarit scale, which was interrupted when the data was saturated. The analysis was carried out using the content analysis technique. Results: Family caregivers showed alterations in basic human needs related to the psychobiological, psychosocial and psychospiritual domains. Such aspects guide the actions of health professionals and validate the importance of holistic and humanitarian assistance for the caregiver, who also needs care. Conclusions: Nursing professionals must act in planning actions that focus on educational, psychological, humanized, empathic and comprehensive support and health promotion, added to the family nucleus care plan, in order to minimize the physical, psychological and social exhaustion of the caregiver.

RESUMEN Introducción: La existencia de un paciente con cáncer en el seno de la familia implica varios retos y conduce a una necesidad de reorganización de toda la familia para la prestación de cuidados a este individuo, dejando, a veces, de cuidar de sí mismo, generando nuevas demandas a menudo descuidadas. Objetivo: Comprender, desde la perspectiva de los familiares cuidadores, cómo el proceso de cuidar de la persona con cáncer impacta en la vida del cuidador y la dinámica familiar. Métodos: Estudio descriptivo y exploratorio, con enfoque cualitativo realizado con los familiares cuidadores de personas con cáncer de la ciudad de Viçosa, Minas Gerais, Brasil, desde diciembre de 2016 hasta enero de 2017. La recopilación de datos se realizó con 7 cuidadores familiares, por medio de una guía con preguntas abiertas, estructurada sobre la base de la escala de Zarit, que se interrumpió cuando hubo la saturación de los datos. El análisis se realizó mediante la técnica de análisis de contenido. Resultados: Los familiares cuidadores mostraron alteraciones en las necesidades humanas básicas relacionadas con los dominios: psicobiológico, psicosocial y psicoespiritual. Tales aspectos orientan las acciones de los profesionales de salud y validan la importancia de una asistencia holística y humanitaria para el cuidador, que también necesita de cuidados. Conclusiones: Los profesionales de enfermería deben actuar en la planificación de acciones que se centran en el apoyo educativo, psicológico, humanizado, empático e integral y en la promoción de la salud, agregados al plan de atención el núcleo familiar, a fin de minimizar el desgaste físico, psicológico y social del cuidador.

Padrões espaciais e temporais da mortalidade de motociclistas em estado do nordeste brasileiro no século XXI
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Souza, Carlos Dornels Freire de

; Machado, Michael Ferreira

; Quirino, Túlio Romério Lopes

; Leal, Thiago Cavalcanti

; Paiva, João Paulo Silva de

; Magalhães, Ana Paula Nogueira de

; Santos, Victor Santana

; Magalhães, Mônica Avelar Figueiredo Mafra

; Mariano, Renato de Souza

; Silva, Rafael Rodrigues da

; Yamashita, Miyuki

Ciência & Saúde Coletiva

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apr 2021, Volume 26 N. 4 Pages 1501 - 1510

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Este trabalho objetivou analisar a tendência e a distribuição espacial da mortalidade de motociclistas em acidentes de transporte no estado de Alagoas. Trata-se de um estudo ecológico referente a todos os óbitos decorrentes de acidentes motociclísticos no estado no período 2001-2015. Os dados de mortalidade foram obtidos do Sistema de Informações sobre Mortalidade (SIM). As taxas de mortalidade foram calculadas e estratificadas por sexo. Para a análise de tendência, foi empregado o modelo de regressão por pontos de inflexão. Calculou-se a Variação Percentual Anual (VPA). Significância de 5%. Para a análise espacial, aplicou-se modelagem bayesiana empírica local, estatística de Moran e estatística de varredura espacial. Foram registrados 1.458 óbitos de motociclistas no período estudado, sendo 91,3% homens. Três comportamentos temporais foram observados nessa população: crescimento (2001-2005), padrão estacionário (2005-2013) e declínio a partir de 2013. As maiores taxas foram observadas no agreste e sertão. Cinco aglomerados espaciais foram evidenciados no que se refere à mortalidade geral e masculina, todos situados no agreste e sertão alagoanos. A modelagem mostrou redução da mortalidade a partir de 2013 e a análise espacial evidenciou que o problema é mais grave no interior do estado.

Abstract The scope of this work was to analyze the trend and distribution of mortality among motorcyclists in traffic accidents in the State of Alagoas. It involved an ecological study relating to all deaths resulting from motorcycle accidents in the state in the period from 2001 to 2015. Mortality data were obtained from the Mortality Information System (MIS). Mortality rates were calculated and stratified by gender. The joinpoint regression model was used for trend analysis and the Annual Percentage Variation (APV) was calculated with a significance rate of 5%. For the spatial analysis, local empirical Bayesian modeling and Moran statistics and spatial scanning statistics were applied. There were 1,458 deaths of motorcyclists in the period studied, 91.3% of which were men. Three temporal behaviors were observed in this population group: growth (2001-2005), stationary pattern (2005-2013) and decline from 2013 onwards. The highest rates were observed in the ‘agreste’ and ‘sertão’ regions of the state of Alagoas. Five spatial clusters were revealed with relation to general and male mortality, all located in the ‘agreste’ and ‘sertão’ hinterlands of Alagoas. The modeling showed a reduction of mortality from 2013 onwards and the spatial analysis revealed that the problem is more acute in the interior of the state.

https://doi.org/10.1590/1413-81232021264.09732019 456 downloads

Padrões espaciais e temporais da mortalidade de motociclistas em estado do nordeste brasileiro no século XXI
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Souza, Carlos Dornels Freire de

; Machado, Michael Ferreira

; Quirino, Túlio Romério Lopes

; Leal, Thiago Cavalcanti

; Paiva, João Paulo Silva de

; Magalhães, Ana Paula Nogueira de

; Santos, Victor Santana

; Magalhães, Mônica Avelar Figueiredo Mafra

; Mariano, Renato de Souza

; Silva, Rafael Rodrigues da

; Yamashita, Miyuki

Ciência & Saúde Coletiva

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2021, Volume 26 N. 4 Pages 1501 - 1510

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.1590/1413-81232021264.09732019

Genetic analysis of productive and reproductive traits in multiple-breed dairy cattle populations
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Ribeiro, Virgínia Mara Pereira

; Merlo, Fernanda Albuquerque

; Gouveia, Gabriela Canabrava

; Winkelstroter, Larissa Kretli

; Abreu, Luíza Rodrigues Alves

; Silva, Marcos Vinícius Gualberto Barbosa da

; Panetto, João Cláudio do Carmo

; Paiva, Leandro de Carvalho

; Cembranelli, Marcello de Aguiar Rodrigues

; Toral, Fabio Luiz Buranelo

Pesquisa Agropecuária Brasileira

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nov 2017, Volume 52 N. 11 Pages 1109 - 1117

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo: O objetivo deste trabalho foi verificar se o modelo de regressão aleatória com polinômios lineares do tipo spline (MRAPLS) é adequado para estimar os parâmetros genéticos de características produtivas e reprodutivas em uma população multirracial de bovinos leiteiros, bem como investigar o efeito do grupo genético da progênie sobre o mérito genético do touro. Foram utilizados o modelo multicaracterístico (Mult) e o MRAPLS com nós ajustados aos grupos genéticos, para obtenção dos parâmetros genéticos. Foram considerados os registros de vacas 1/2 Holandesa + 1/2 Gir (1/2HG), 5/8 Holandesa + 3/8 Gir (5/8HG) e 3/4 Holandesa + 1/4 Gir (3/4HG). O MRAPLS apresentou os melhores ajustes. As variâncias aditivas e residuais estimadas por Mult e MRAPLS foram semelhantes. As herdabilidades variaram de 0,20 a 0,33 para idade ao primeiro parto, de 0,09 a 0,22 para duração da primeira lactação e de 0,15 a 0,35 para produção de leite em até 305 dias na primeira lactação, de acordo com a composição genética das vacas. O MRAPLS é adequado para estimar parâmetros genéticos de características produtivas e reprodutivas em populações multirraciais de bovinos leiteiros. O mérito genético do touro é influenciado pelo grupo genético da progênie por meio do qual ele é avaliado.

Abstract: The objective of this work was to determine whether the random regression model using linear splines (RRMLS) is suitable to estimate the genetic parameters for productive and reproductive traits of a multiple-breed dairy cattle population, as well as to investigate the effect of the genetic group of the progeny on the genetic merit of the sire. The multiple-trait model (MTM) and the RRMLS with one knot fitted for every genetic group were used to obtain the genetic parameters. Records of 1/2 Holstein + 1/2 Gyr (1/2HG), 5/8 Holstein + 3/8 Gyr (5/8HG), and 3/4 Holstein + 1/4 Gyr (3/4HG) crossbreed dams were considered. The RRMLS showed better fitting. The additive and residual variances estimated by the MTM and the RRMLS were similar. Heritability varied from 0.20 to 0.33 for age at first calving, from 0.09 to 0.22 for first lactation length, and from 0.15 to 0.35 for first lactation 305-day milk yield, according to the genetic composition of the dams. The RRMLS is suitable to estimate the genetic parameters for productive and reproductive traits of multiple-breed dairy cattle populations. The genetic merit of the sires is affected by the genetic group of the progeny by which they are evaluated.

https://doi.org/10.1590/s0100-204x2017001100017 1265 downloads

10.

SOA-BD: Service Oriented Architecture for Biomedical Devices
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Lacerda, João Marcos Teixeira

; Paiva, Jailton Carlos de

; Carvalho, Diego Rodrigues de

; Morais, Philippi Sedir Grilo de

; Fernandes, Yáskara Ygara Menescal Pinto

; Valentim, Ricardo Alexsandro de Medeiros

Research on Biomedical Engineering

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jun 2017, Volume 33 N. 2 Pages 166 - 172

Abstract: En | Text: En | PDF: En

Introduction: The communication of information systems with biomedical devices has become complex not only due to the existence of several private communication protocols, but also to the immutable way that software is embedded into these devices. In this sense, this paper proposes a service-oriented architecture to access biomedical devices as a way to abstract the mechanisms of writing and reading data from these devices, thus contributing to enable the focus of the development team of biomedical software to be intended for its functional requirements, i.e. business rules relevant to the problem domain. Methods The SOA-BD architecture consists of five main components: A Web Service for transport and conversion of the device data, Communication Protocols to access the devices, Data Parsers to preprocess data, a Device Repository to store data and transmitted information and Error handling, for error handling of these information. For the development of SOA-BD, technologies such as the XML language and the Java programming language were used. Besides, Software Engineering concepts such as Design Patterns were also used. For the validation of this work, data has been collected from vital sign monitors in an Intensive Care Unit using HL7 standards. Results The tests obtained a difference of about only 1 second in terms of response time with the use of SOA-BD. Conclusion SOA-BD achieves important results such as the reduction on the access protocol complexity, the opportunity for treating patients over long distances, allowing easier development of monitoring applications and interoperability with biomedical devices from diverse manufacturers.

https://doi.org/10.1590/2446-4740.09716 1408 downloads

11.

Growth and photosynthetic responses during ex vitro acclimatization of Etlingera Elatior (Jack) rm smith (torch ginger)
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Rodrigues, Marcelo

; Paiva, Patrícia Duarte de Oliveira

; Freitas, Rodrigo Therezan de

; Mansur, Thaís de Oliveira Fontes

; Paiva, Renato

; Barbosa, João Paulo Rodrigues Alves Delfino

Acta Scientiarum. Agronomy

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dec 2015, Volume 37 N. 4 Pages 495 - 504

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO O bastão-do-imperador (Etlingera elatior Jack Smith RM) pode ser propagado in vitro, mas não há informações sobre as fases de aclimatização e adaptação no campo. O objetivo foi estudar as respostas de crescimento e sobrevivência durante a aclimatização ex vitro da espécie, quando mantida em diferentes substratos: Plantmax florestal(r); areia; Plantmax florestal(r) e areia 1:1; e malhas de sombreamento a 50% na cor vermelha; azul e controle sem a presença de malha, assim como estudar respostas fotossintéticas durante a aclimatização em casa de vegetação. A maior taxa de sobrevivência das plantas, número de folhas e número de brotos por planta, foram observados no tratamento com substrato tipo Plantmax florestal(r) puro, na ausência de sombreamento. Quanto à taxa de fotossíntese líquida, eficiência de carboxilação, condutância estomática e taxa de transpiração, plantas de cultivo in vitro apresentaram comportamento semelhante ou superior quando comparadas com plantas controle obtidas a partir de rizomas. Em geral, a eficiência do funcionamento bioquímico e do fotossistema II foram semelhantes em plantas de cultivo in vitro e controle. Conclui-se que tais resultados mostram que as plantas derivadas do cultivo in vitro apresentam rendimento fisiológico satisfatório, conferindo capacidade de aclimatação no campo.

ABSTRACT Torch ginger (Etlingera elatior (Jack) RM Smith) can be propagated in vitro, but there is currently little information about the stages of acclimatization and adaptation for torch ginger in a greenhouse. The objective was to study the growth responses, survival and photosynthetic response during the acclimatization of plants maintained on three different substrates (Plantmax forestry(r), sand and 1:1 Plantmax forestry(r) and sand) under three shading conditions (50% red and blue shading nets and control without shading nets). The highest leaf and shoot numbers per plant and survival rate were observed in treatments with the Plantmax forestry(r) type substrate in the absence of shading. In vitro culture plants behaved similarly or better than rhizome propagated control plants with regard to the net photosynthesis rate, carboxylation efficiency, stomatal conductance and transpiration rate. In general, for both conditions, in vitro and control plants had similar efficiency of biochemical functions and of photosystem II. These results show that plants derived from in vitro culture exhibit satisfactory physiological yield and greenhouse acclimation capacity.

https://doi.org/10.4025/actasciagron.v37i4.19707 2037 downloads

12.

Mesquite pod meal in elephant grass silages
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Rêgo, Aníbal Coutinho do

; Paiva, Paulo César de Aguiar

; Muniz, Joel Augusto

; van Cleef, Eric Haydt Castello Branco

; Machado Neto, Otávio Rodrigues

; Mata Junior, João Irineu da

Acta Scientiarum. Animal Sciences

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sep 2013, Volume 35 N. 3 Pages 251 - 258

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Objetivou-se avaliar a composição químico-bromatológica e a digestibilidade "in vitro" da matéria seca (DIVMS) de silagens de capim-elefante em diferentes tempos (70; 90 e 110 dias) de crescimento do capim, com inclusão (0, 5, 10 e 15%) do farelo da vagem de algaroba. Foi utilizado um delineamento inteiramente casualizado (DIC), arranjado em um esquema fatorial, com quatro repetições. Como silos experimentais foram utilizados tubos do tipo PVC com 100 mm de diâmetro. Passados 30 dias da ensilagem, os silos foram abertos e retiradas amostras para determinação da composição químico-bromatológica e DIVMS. A inclusão do farelo da vagem de algaroba (FVA) elevou os teores de MS e PB. Não foi observada interação (p > 0,01) concentração do FVA × idade de corte do capim-elefante nos teores de MS, PB e FDN das silagens. Foi observada diminuição (p < 0,01) nos teores de FDN, FDA e MM com a inclusão do FVA. Houve aumento linear (p < 0,01) na DIVMS com o aumento na concentração do FVA e diminuição (p < 0,01) na DIVMS com o aumento da idade de corte do capim-elefante. A inclusão do farelo da vagem de algaroba contribui para melhorar a composição química e a digestibilidade das silagens.

This study evaluated the chemical composition and in vitro dry matter digestibility (IVDMD) of elephant grass silages at different growth stages (70, 90 and 110 days), with the addition (0, 5, 10 and 15%, on a fresh matter basis) of mesquite pod meal. A completely randomized design (CRD) was used in a factorial arrangement with four replications. PVC pipes 100 mm in diameter were used as experimental silos. After 30 days of ensilage, samples were taken from the open silos to determine chemical composition and IVDMD. The inclusion of mesquite pod meal (MPM) increased (p < 0.01) the concentrations of DM and CP. No interaction (p > 0.01) was detected between MPM concentrations and elephant grass cutting age for DM, CP and NDF contents in the silages. A decrease (p < 0.01) was observed in NDF, ADF and MM concentrations with the inclusion of MPM. There was a linear increase (p < 0.01) in IVDMD with increasing levels of MPM; and IVDMD decreased (p < 0.01) with increasing cutting age of the elephant grass. The inclusion of mesquite pod meal contributed to improve the chemical composition and digestibility of silages.

https://doi.org/10.4025/actascianimsci.v35i3.12506 1086 downloads

13.

Crescimento e aspectos sintomatológicos na aclimatização de Ipê-roxo
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Martins, João Paulo Rodrigues

; Santos, Breno Régis

; Barbosa, Sandro

; Máximo, Wesley Pires Flausino

; Beijo, Luiz Alberto

; Paiva, Renato

CERNE

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dec 2011, Volume 17 N. 4 Pages 435 - 442

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Este trabalho teve por objetivo avaliar a influência do tipo de vedação e substrato na pré-aclimatização e os aspectos sintomatológicos na aclimatização de Ipê-roxo. Para pré-aclimatização, plantas de Ipê-roxo obtidas in vitro por meio de cultura de embriões zigóticos foram inoculadas assepticamente em tubos de ensaio contendo diferentes tipos de vedação (algodão, tampa plástica + parafilme e tampa plástica) e diferentes substratos (ágar, vermiculita e Plantmax®) suplementados com meio de cultivo WPM acrescidos de 1 gL-1 de carvão ativado, 10 mgL-1 de ácido cítrico e 30 gL-1 de sacarose. Para a aclimatização, plantas de Ipê-roxo obtidas in vitro foram transplantadas para tubetes de 56 cm³; contendo vermiculita e Plantmax®na proporção 2:1, previamente autoclavado a 121ºC e 1 atm, por 20 minutos. Após o transplantio, as plantas foram irrigadas com diferentes concentrações do meio MS (25%, 50%, 75%, 100% e 150%), sendo utilizada como controle água destilada. Após 30 dias, foram verificados efeitos do tipo de vedação e substrato na pré-aclimatização. O algodão pode ser recomendado quando se utiliza Plantmax®ou vermiculita como substrato. Na aclimatização, verificou-se que as plantas quando irrigadas com água destilada e concentrações < 50% apresentaram sintomas de deficiência nutricional. Foram observados sintomas semelhantes com a utilização de MS em concentração igual ou superior a 100%. A concentração 75% do meio MS foi a mais eficiente na manutenção do vigor nutricional de mudas de Ipê-roxo em processo de aclimatização.

This work evaluated the influence of seal type and substrate type on pre-acclimatization, and symptomatological aspects relating to acclimatization of ipê-roxo. For the pre-acclimatization, ipê-roxo plants obtained through an in vitro zygotic embryo culture were aseptically inoculated in test tubes with different types of seal (cotton plug, plastic cap + parafilm and plastic lid) and different substrates (agar, vermiculite and Plantmax®) supplemented with a WPM culture medium with 1 gL-1 of activated charcoal, 10 mgL-1 of citric acid and 30 gL-1 of sucrose added. For the acclimatization, in vitro ipê-roxo plants were transplanted into 56-cm³plastic tubes containing vermiculite and Plantmax®at a 2:1 ratio which had been previously autoclaved at 121ºC and 1 atm for 20 minutes. Once transplanted, the plants were irrigated with different concentrations of the MS medium (25%, 50%, 75%, 100% and 150%), using distilled water as control. After 30 days, the effects of seal type and substrate type on pre-acclimatization were examined. Cotton can be recommended where Plantmax®or vermiculite is used as substrate. In the acclimatization it was noted that where plants were irrigated with distilled water and concentrations < 50% they showed symptoms of nutritional deficiency. Similar symptoms were observed when using MS medium at a concentration equal to or greater than 100%. The 75% MS concentration was found to be the most effective at maintaining the nutritional vigor of ipê-roxo seedlings in the process of acclimatization.

1065 downloads

14.

Estudos de adaptação do Millon Clinical Multiaxial Inventory-III para avaliação de aspectos psicopatológicos da personalidade no Brasil
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Rocha, Hannia Roberta Rodrigues Paiva da

; Sousa, Heloísa Karmelina Carvalho de

; Alchieri, João Carlos

; Sales, Eleni de Araújo

; Alencar, João Carlos Nascimento de

Jornal Brasileiro de Psiquiatria

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2011, Volume 60 N. 1 Pages 34 - 39

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

OBJETIVOS: Traduzir e adaptar para uso no Brasil o Millon Clinical Multiaxial Inventory-III (MCMI-III), verificando as modificações envolvidas em relação à escala original. MÉTODO: 538 participantes responderam ao MCMI-III, ao Questionário de Saúde Geral de Goldberg e a um questionário sociodemográfico especificamente elaborado para esta pesquisa. Os sujeitos foram, então, divididos entre grupo clínico e não clínico, e seus padrões de respostas foram comparados considerando-se as diferentes variáveis sociodemográficas. RESULTADOS: Os resultados demonstram diferenças estatisticamente significativas nos padrões de respostas para a maioria das escalas quando comparados os grupos clínico e não clínico. CONCLUSÃO: O estudo ratifica a sensibilidade de discriminação entre os diferentes grupos, apresentando indícios da validade do instrumento quanto ao preceito teórico.

OBJECTIVES: To translate and adapt the Millon Clinical Multiaxial Inventory-III (MCMI-III) for use in Brazil, testing the changes performed in the original scale. METHOD: 538 participants answered the MCMI-III, the Goldberg General Health Assessment and a social demographical questionnaire specifically designed to this research. Then, respondents were divided into clinical and non-clinical groups, and their answers' patterns were compared considering different social demographic characteristics. RESULTS: Significant statistical differences in answer patterns were found in most scales when clinical and non clinical groups were compared. CONCLUSION: This study confirms the ability of the MCMI-III to discriminate different groups, consistent with the instrument validity based his theoretical foundations.

6884 downloads Cited 1 time in SciELO

15.

Influência de porta-enxertos na resistência de mudas de cajueiro ao estresse salino
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Ferreira-Silva, Sérgio Luiz

; Voigt, Eduardo Luiz

; Viégas, Ricardo Almeida

; Paiva, João Rodrigues de

; Silveira, Joaquim Albenísio Gomes

Pesquisa Agropecuária Brasileira

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apr 2009, Volume 44 N. 4 Pages 361 - 367

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O objetivo deste trabalho foi avaliar a influência de porta-enxertos na resistência de mudas de cajueiro (Anacardium occidentale L.) à salinidade. As mudas foram obtidas pela enxertia do clone BRS 226 sobre os porta-enxertos CAPI 4, CCP 09 e BRS 226. Foram expostas a meio hidropônico sem NaCl (controle) ou com NaCl 200 mM (tratamento salino), sob condições controladas de temperatura, umidade e luminosidade, durante 12 dias. O delineamento foi o inteiramente casualizado, em esquema fatorial 3x2 (três combinações de enxerto/porta-enxerto e duas concentrações de NaCl), com quatro repetições. Foram determinados a concentração de Na+, Cl-, K+ e solutos orgânicos e os sintomas visuais de toxicidade nas folhas. Os conteúdos de Na+ e Cl-, a relação K+/Na+ e as concentrações de aminoácidos e de prolina livres nas folhas tiveram relação direta com os sintomas visuais de toxicidade. Os porta-enxertos CAPI 4, CCP 09 e BRS 226 foram classificados como sensível, intermediário e resistente à salinidade elevada, respectivamente. Essa variação foi decorrente da influência do porta-enxerto na partição do Na+ e do Cl-.

The aim of this work was to evaluate the influence of cashew (Anacardium occidentale L.) rootstocks on salt resistance in grafted plantlets. The plantlets were obtained by grafting the BRS 226 scion on CAPI 4, CCP 09 and BRS 226 rootstocks, and were exposed to nutrient solution without NaCl (control) or with 200 mM NaCl (salt treatment) in hydroponics under controlled temperature, humidity, and luminosity conditions during 12 days. The experimental design was a completely randomized in factorial arrangement 3x2 (three scion/rootstock combinations, two NaCl concentrations) with four replicates. Na+, Cl-, K+ and organic solute concentrations and toxicity symptoms on leaves were determined. Na+ and Cl- contents, the K+/Na+ ratio and the free amino acid and proline concentrations in leaves were directly related to the visual toxicity symptoms. The rootstocks were classified as sensitive (CAPI 4), intermediate (CCP 09), and resistant (BRS 226) to high salinity. This variation was a consequence of the rootstock influence on Na+ and Cl- partitioning.

2191 downloads Cited 5 times in SciELO

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