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Classification of precipitation anomalies in the Rio Grande do Sul in ENSO events in the 20th century
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Valente, Pedro Teixeira

; Viana, Denilson Ribeiro

; Aquino, Francisco Eliseu

; Simões, Jefferson Cardia

Sociedade & Natureza

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2023, Volume 35 elocation e66073

Resumo: En | Texto: En | PDF: En

Abstract This study investigated the intensity and spatial distribution of precipitation anomalies in Rio Grande do Sul state (RS) during the 20th century by analyzing the influence of El Niño - Southern Oscillation (ENSO) in its three phases. Reanalyzes from the University of Delaware (V5) were used. Precipitation anomalies were divided into three zones (Campaign, Plateau, Coast) to investigate possible differences in precipitation under ENSO influence. Alexandersson's Standard Normal Homogeneity Test was applied to verify possible structural breaks. Wavelets were used to rate the periodicity of precipitation anomalies into three phases. Anomalies that occurred in El Niño and La Niña phases were classified in contingency tables as weak, average, and strong to evaluate the qualitative behavior of these precipitation anomalies. It was found that precipitation anomalies presented a structural break in 1955 when the tendency to positive anomalies increased. From 1955, precipitation anomalies increased at least 0.5 standard deviation while the frequency of these anomalies decreased from 85 to 60 months. Peaks of positive anomalies in El Niño were higher than 200 mm. In neutral cases, anomalies intensified in 0.5 standard deviation since 1970. Negative anomalies did not show specific behavior in any ENSO phase. Contingency tables indicated that La Niña events did not present any visible influence pattern. It could intensify the episodes of positive and negative precipitation anomalies in at least 0.5 (-0.5) standard deviation. Therefore, La Niña events could increase or decrease the monthly anomaly but do not show any tendency to negative anomalies. Weak El Niños tends to contribute to negative precipitation anomalies while strong cases are associated with an average increase of 2 standard deviations in positive anomalies. It was concluded that the influence of ENSO in RS is stronger in El Niño than in La Niña. Still, both may induce negative and positive anomalies, depending on the intensity of each case. Wavelet analysis revealed that cycles that did not coincide with El Niño/La Niña showed an increase (decrease) of 0.5 (-0.5) standard deviation is positive (negative) anomalies. The increase of anomalies in neutral phases indicated that other climatic variability modes and the intensity of meteorological events decreased the 25 and 43 months cycles and increased the precipitation in RS.

https://doi.org/10.14393/sn-v35-2023-66073

Phosphorus fractions and microbiological indicators in vineyards soils of a tropical semiarid setting in Brazil
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Fracetto, Giselle Gomes Monteiro

; Freitas, Eliabe de Morais

; Nascimento, Clístenes Williams Araújo do

; Silva, Davi José da

; Medeiros, Erika Valente de

; Fracetto, Felipe José Cury

; Silva, Fernando Bruno Vieira da

; Buzó, Lucia Helena Nunez

; Silva, William Ramos da

Bragantia

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2023, Volume 82 elocation e20220232

Resumo: En | Texto: En | PDF: En

ABSTRACT Brazilian semi-arid tropical is responsible for the production and export of fine table grapes, but the demand for phosphate fertilizers and other agricultural inputs increases the cost of production and threatens local water bodies by leaching of phosphorus (P). The objectives of this study were to quantify the organic and inorganic fractions of P and to determine chemical and microbiological attributes related to its mineralization in soils cultivated with vines in São Francisco Valley. It was hypothesized that P fractions and microbial activity would increase in areas fertilized with phosphate. Soil samples from vines were collected in cultivated areas and in fallow systems. P fractionation, macro-elements analysis, microbial biomass phosphorus (Pmic), and phosphatase enzyme activity were determined and correlated with each other and with the total proportion of synthesized glomalin. In both treatments, the inorganic P fractions exceeded the organic ones, and the total phosphorus available in those soils was associated with the most recalcitrant fractions, reducing risks of leaching of this element and contamination of water bodies. Pmic was higher in the winery areas due to the presence of phosphate fertilizers and organic matter, hence the activity of alkaline phosphatase enzymes and the production of total glomalin increased respectively in three and four evaluated areas, indicating that P-mineralized bacteria and arbuscular mycorrhizal fungi have been positively affected by the current agricultural system.

https://doi.org/10.1590/1678-4499.20220232

Evaluation of nutritional and ruminal degradability potential of sandbox (Hura crepitans L.) seeds in stabled Blackbelly sheep
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Escalera-Valente, Francisco

; Loya-Olguín, José Lenin

; Martínez-González, Sergio

; Carmona-Gasca, Carlos Alfredo

; Bautista-Rosales, Pedro Ulises

; Gutiérrez-Leyva, Ranferi

Revista Brasileira de Zootecnia

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2022, Volume 51 elocation e20220012

Resumo: En | Texto: En | PDF: En

Abstract This study evaluated chemical composition, in situ dry matter degradability (DMD), energy utilization, and amino acid profile of the sandbox seed meal (SSM) obtained from ground seeds of Hura crepitans trees. Two cannulated male Blackbelly sheep (initial weight of 40 kg) were fed a balanced feed ad libitum for 21 days; rumen samples of animals were collected for seven days using the nylon bag technique for degradability. The results were interpreted in reference to incubation times from 0 to 72 h, evaluating degradation kinetics with an exponential model. The SSM showed crude protein and dry matter contents of 251.1 and 931.7 g/kg, respectively. The highest DMD value was recorded from 0 to 3 h with a change rate of 41%, and the energy contained in SSM had a gradual ruminal disappearance with a maximum value of energy utilization of 14.6% after 72 h post-incubation. The most representative amino acids of SSM were glutamic (16.9%), arginine (13.0%), and aspartic (9.7%) acids. The results suggest that SSM has adequate nutritional quality and ruminal DMD for ovine feeding systems.

https://doi.org/10.37496/rbz5120220012

Prenatal Diagnosis of Aberrant Right Subclavian Artery: Association with Genetic Abnormalities
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Lourenço, Cátia Sofia Ferreira Pinto

; Carriço, Ana Luísa

; Valente, Francisco Manuel da Silva

Revista Brasileira de Ginecologia e Obstetrícia

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Jun 2021, Volume 43 Nº 6 Páginas 452 - 456

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Objetivo O objetivo do presente estudo foi determinar a frequência demalformaçães e anomalias cromossômicas em uma população de fetos com artéria subclávia direita aberrante (ARSA). Métodos Este é um estudo retrospectivo de 6 anos de fetos com diagnóstico prénatal de ARSA realizado durante o período de setembro de 2013 a junho de 2019 em uma unidade de medicina fetal. Os dados foram coletados de ultrassom, ecocardiograma fetal, estudos genéticos e registros neonatais. Resultados Um ARSA foi diagnosticado em 22 fetos. Um ARSA foi um achado isolado em 18 dos 22 casos (82%). Achados ultrassonográficos anormais associados foram encontrados em 4 casos. Todos os casos foram submetidos a testes invasivos. Em um dos casos, foi detectada uma anormalidade cromossômica (mos 45, X [13] / 46, X, e (X) (p22.1q22.1)). Nenhum caso de doença cardíaca congênita foi encontrado em qualquer um desses fetos. Houve dois casos em que a avaliação pós-natal revelou a malformação: um caso de hipospádia e 1 caso de fenda palatina. Conclusão A presença de ARSA isolado é benigna e não está associada a anormalidades cromossômicas. O achado de ARSA, no entanto, justifica uma ultrassonografia fetal detalhada para excluir anormalidades fetais importantes e outros marcadores leves.

Abstract Objective The objective of the present study was to determine the frequency of malformations and chromosomal abnormalities in a population of fetuses with an aberrant right subclavian artery (ARSA). Methods This is a 6-year retrospective study of fetuses with a prenatal diagnosis of ARSA conducted during the period between September 2013 and June 2019 at a fetal medicine unit. Data were collected from ultrasound, fetal echocardiograms, genetic studies, and neonatal records. Results An ARSA was diagnosed in 22 fetuses. An ARSA was an isolated finding in 18 out of 22 cases (82%). Associated abnormal sonographic findings were found in 4 cases. All cases underwent invasive testing. In 1 of the cases, a chromosomal abnormality was detected (mos 45,X [13]/46,X,e(X) (p22.1q22.1)). No cases of congenital heart disease were found in any of these fetuses. There were two cases in which the postnatal evaluation revealed amalformation: one case of hypospadias and 1 case of cleft palate. Conclusion The presence of an isolated ARSA is benign and is not associated with chromosomal abnormalities. The finding of ARSA, however, warrants a detailed fetal ultrasound in order to exclude major fetal abnormalities and other soft markers.

https://doi.org/10.1055/s-0041-1732461 82 downloads

Biomarkers associated with coronavirus disease-19 disease progression in a Mexican hospital
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Gerson-Cwilich, Raquel

; Shveid-Gerson, Daniela

; Noguez-Ramos, Alejandro

; López-Zepeda, Lorena

; Rodríguez-Soto, Benigno E.

; Villegas-Osorno, Diana A.

; Valente-Acosta, Benjamín

; García-Guerrero, Javier

; Moreno-Sánchez, Francisco

Revista médica del Hospital General de México

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Jun 2021, Volume 84 Nº 2 Páginas 64 - 70

Resumo: En | Texto: En | PDF: En

Abstract Introduction: The Coronavirus disease (COVID-19) pandemic is a worldwide challenge. There are few useful tools to predict patient outcomes. Identification of biomarkers able to predict progression of the disease could improve the treatment of these patients. Objective: The objective of the study was to identify biomarkers of disease progression among patients with severe COVID-19 pneumonia. Materials and methods: A retrospective cohort study was conducted among severe COVID-19 pneumonia patients hospitalized in the American British Cowdray Medical Center in Mexico City. Disease progression was defined as use of vasoactive amines, need of non-invasive or invasive mechanical ventilation or death. Studied biomarkers included neutrophil/lymphocyte index, lymphocyte/platelet Ratio, C reactive protein, procalcitonin, D Dimer, lactic dehydrogenase (LDH), ferritin, 25-OH-Vitamin D, and interleukin 6. Results: We report 46 patients with severe COVID-19 pneumonia. Mean age was 51 years, the majority of whom 30 (65%) male. Median hospitalization was 9 days. 23 (50%) of patients presented disease progression. Ferritin and LDH were strongly associated with disease progression among our cohort. In addition, age was associated with worst prognosis with a relative risk 4.5 (1.2-16.9, p = 0.003). Conclusions: Age, ferritin, and LDH were associated with disease progression among patients with severe COVID-19 pneumonia.

https://doi.org/10.24875/hgmx.20000078 97 downloads

Sensor system for acquisition of vegetation indexes
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Silva, Thales M. de A.

; Valente, Domingos S. M.

; Pinto, Francisco de A. de C.

; Queiroz, Daniel M. de

; Santos, Nerilson T.

Revista Brasileira de Engenharia Agrícola e Ambiental

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Abr 2021, Volume 25 Nº 4 Páginas 264 - 269

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Os índices de vegetação são importantes indicadores da saúde e produtividade das culturas agrícolas. Dentre os tipos de sensores, os sensores proximais podem ser utilizados para tomada de decisão em tempo real. Dessa forma, o objetivo deste estudo foi desenvolver um sistema sensor proximal, com base em fototransistor, para obtenção e armazenamento dos índices de vegetação: NDVI (Índice de Vegetação da Diferença Normalizada), SR (Razão Simples), WDRVI (Índice de Vegetação de Larga Escala Dinâmica), SAVI (Índice de Vegetação Ajustado ao Solo) e OSAVI (Índice de Vegetação Ajustado ao Solo Otimizado). O sistema sensor foi desenvolvido utilizando um circuito analógico para realizar a aquisição de dados de reflectância das bandas do vermelho e infravermelho próximo. O sistema sensor foi calibrado, utilizando grama Zoysia japonica, para ajustar seus valores aos de um espectroradiômetro. Desenvolveu-se um algoritmo que calcula os índices de vegetação e armazena os resultados em um arquivo. Avaliou-se a correlação de Pearson entre os índices de vegetação obtidos com o sistema sensor e o espectroradiômetro. Os índices de vegetação apresentaram correlação de Pearson superiores a 0,92 com os valores estimados pelo espectroradiômetro. Nas condições analisadas, o sistema sensor proposto pode ser utilizado na determinação de todos os índices de vegetação abordados.

ABSTRACT Vegetation indexes are important indicators of the health and yield of agricultural crops. Among the sensors used to evaluate vegetation indexes, proximal sensors can be used for real-time decision-making. Thus, the objective of this study was to develop a proximal sensor system based on phototransistors to acquire and store the following vegetation indexes: normalized difference vegetation index, simple ratio, wide dynamic range vegetation index, soil-adjusted vegetation index, and optimized soil-adjusted vegetation index. The sensor system was developed using an analog circuit to acquire reflectance data from red and near-infrared bands. The sensor system was calibrated according to the results of a spectroradiometer, using Zoysia japonica grass as the target. An algorithm that calculates and stores vegetation indexes in a file was developed. The Pearson correlation between the vegetation indexes obtained with the sensor system and the spectroradiometer was evaluated. The vegetation indexes presented a Pearson correlation higher than 0.92 to the estimated values by the spectroradiometer. Under the evaluation conditions, the proposed sensor system could be used to determine all vegetation indexes evaluated.

https://doi.org/10.1590/1807-1929/agriambi.v25n4p264-269 352 downloads

COMPARING A SINGLE-SENSOR CAMERA WITH A MULTISENSOR CAMERA FOR MONITORING COFFEE CROP USING UNMANNED AERIAL VEHICLES
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Gomes, Amanda P. A.

; Queiroz, Daniel M. de

; Valente, Domingos S. M.

; Pinto, Francisco de A. de C.

; Rosas, Jorge T. F.

Engenharia Agrícola

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Fev 2021, Volume 41 Nº 1 Páginas 87 - 97

Resumo: En | Texto: En | PDF: En

ABSTRACT There exist two options for digital cameras that can capture the near-infrared (NIR) band. Conventional red–green–blue (RGB, visible bands) cameras with a single sensor provide NIR band visibility based on the removal of the internal NIR-blocking filter. Alternatively, multisensor cameras exist that have a specific sensor for each band. The modified RGB cameras are of a lower price. In this context, the objective of this study was to compare the performance of a modified RGB camera with that of a multisensor camera for obtaining the normalized difference vegetation index (NDVI) in an area with coffee cultivations. A multispectral camera with five sensors and another camera with only one sensor were used. The NDVI of the coffee field was also measured using the GreenSeeker handheld NDVI sensor manufactured by Trimble. The images were calibrated radiometrically based on the targets in shades of gray made of napa, and the NDVI was calculated after image calibration. The calibration curves showed a high coefficient of determination. The NDVI value obtained with the calibrated images from the cameras showed a significant correlation with the values obtained by the GreenSeeker NDVI sensor, making it possible to obtain the variability pattern of the vegetation index. However, the NDVI obtained using the multisensor camera was closer to the NDVI obtained by the GreenSeeker NDVI sensor.

https://doi.org/10.1590/1809-4430-eng.agric.v41n1p87-97/2021 634 downloads

Dynamic behavior of the macauba palm (Acrocomia aculeata) fruit-rachilla system using the stochastic finite element method
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Rangel, Jéssica Pontes

; Queiroz, Daniel Marçal de

; Pinto, Francisco de Assis de Carvalho

; Teixeira, Cleonice Campos

; Santos, Fábio Lúcio

; Valente, Domingos Sárvio Magalhães

Acta Scientiarum. Agronomy

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2021, Volume 43 elocation e48565

Resumo: En | Texto: En | PDF: En

ABSTRACT. The search for alternative energy sources has fomented the study of several crops. The macauba palm crop, for instance, has been highlighted because of its particular relevance in Brazil due to its wide distribution across Brazilian territory and its potential for yielding high amounts of oil per cultivated hectare. However, the species is still most commonly harvested via extractivism, which results in low yields. Therefore, we aimed to analyze the dynamic behavior of the fruit-rachilla system when subjected to mechanical vibration to gather baseline information for the subsequent development of macauba harvesting machines. The fruit-rachilla system of the species was modeled for different fruit maturation stages and plant accessions. Natural frequencies and modes of vibration were determined by the stochastic finite element method (FEM), adopting the specific mass and the modulus of elasticity of the system as random variables, which enabled us to compile a dataset of natural frequencies based on the variability of the system properties. The mean values of the natural frequencies obtained in the vibration assays were 26.02 Hz at the green maturation stage and 21.22 Hz at the ripe maturation stage. The mean values of natural frequencies found in the simulation by stochastic FEM, referring to the third mode of vibration, were 26.05 Hz at the green maturation stage and 21.23 Hz at the ripe maturation stage. We concluded that the natural frequencies of the macauba fruit-rachilla system on the basis of different plant accessions showed a decreasing behavior during fruit maturation. The modes of vibration characterized by pendulum displacement did not differ among plant accessions or between fruit maturation stages.

https://doi.org/10.4025/actasciagron.v43i1.48565 453 downloads

ELEMENTOS PARA A LEITURA DE JOGO NO LEVANTAMENTO A PARTIR DA PRAXIOLOGIA MOTRIZ: A LINGUAGEM CORPORAL DOS JOGADORES DE VOLEIBOL
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Oliveira, Raquel Valente de

; Ribas, João Francisco Magno

Journal of Physical Education

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2021, Volume 32 elocation e3204

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO O objetivo da pesquisa foi sistematizar os elementos relativos à linguagem corporal dos jogadores de Voleibol que orientam a Leitura Praxêmica e a tomada de decisão do Levantador, fundamentado nas interações de cooperação e oposição estabelecidas no jogo. Para isso, realizou-se uma pesquisa teórica, nos quais foram utilizados artigos, livros, teses e dissertações que têm como temática o Voleibol e a leitura de jogo, selecionados em cinco fontes de pesquisas: Portal de Periódicos CAPES/MEC; Revistas Brasileiras da área da Educação Física; Acervo da Biblioteca do Centro de Educação Física da Instituição; Acervo do Grupo de Pesquisa; Catálogo de Teses e Dissertações - CAPES. Os elementos Praxêmicos mais apontadas pelos estudos analisados foram: Salto (saque); Posicionamento de Mãos/Braços, Flexão de Joelhos, Deslocamento dos Passadores (recepção); Passadas (corrida) de Preparação (ataque); Deslocamento dos Bloqueadores (bloqueio); Deslocamento dos Defensores (defesa adversária); Posicionamento de Mãos/Braços, Flexão de Joelhos, Deslocamento dos Defensores (defesa da equipe). Fundamentado nos resultados desta pesquisa é possível afirmar que os elementos sistematizados se complementam no contexto do jogo de Voleibol, orientando a leitura e a tomada de decisão do Levantador durante as mais variadas situações pelas quais ele é responsável no momento do Levantamento.

ABSTRACT The objective of the research was to systematize the elements related to the body language of Volleyball players that guide the Praxemic Reading and the decision making of the Lifter, based on the interactions of cooperation and opposition established in the game. For that, a theoretical research was carried out, in which articles, books, theses and dissertations were used that have Volleyball as the theme and the reading of game, selected in five research sources: Portal of Newspapers CAPES/MEC; Brazilian journals in the area of Physical Education; Collection of the Library of the Center of Physical Education of the Institution; Collection of the Research Group; Thesis and Dissertation Catalog - CAPES. The Praxemic elements most pointed out by the analyzed studies were: Salto (serve); Hand/Arm Positioning, Knee Flexion, Passenger Displacement (reception); Past (run) of Preparation (attack); Displacement of the Blockers (block); Displacement of Defenders (opposing defense); Hand/Arm Positioning, Knee Flexion, Displacement of Defensors (defense of the team). Based on the results of this research, it is possible to affirm that the systematized elements complement each other in the context of the game of Volleyball, orienting the reader and the decision making of the Lifter during the most varied situations for which he is responsible at the time of the Survey.

https://doi.org/10.4025/jphyseduc.v32i1.3204 172 downloads

10.

COVID-19: The question of genetic diversity and therapeutic intervention approaches
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Figueiredo, David Livingstone Alves

; Ximenez, João Paulo Bianchi

; Seiva, Fábio Rodrigues Ferreira

; Panis, Carolina

; Bezerra, Rafael dos Santos

; Ferrasa, Adriano

; Cecchini, Alessandra Lourenço

; Medeiros, Alexandra Ivo de

; Almeida, Ana Marisa Fusco

; Ramão, Anelisa

; Boldt, Angelica Beate Winter

; Moya, Carla Fredrichsen

; Chin, Chung Man

; Paula, Daniel de

; Rech, Daniel

; Gradia, Daniela Fiori

; Malheiros, Danielle

; Venturini, Danielle

; Tavares, Eliandro Reis

; Carraro, Emerson

; Ribeiro, Enilze Maria de Souza Fonseca

; Pereira, Evani Marques

; Tuon, Felipe Francisco

; Follador, Franciele Aní Caovilla

; Fernandes, Glaura Scantamburlo Alves

; Volpato, Hélito

; Cólus, Ilce Mara de Syllos

; Oliveira, Jaqueline Carvalho de

; Rodrigues, Jean Henrique da Silva

; Santos, Jean Leandro dos

; Visentainer, Jeane Eliete Laguila

; Brandi, Juliana Cristina

; Serpeloni, Juliana Mara

; Bonini, Juliana Sartori

; Oliveira, Karen Brajão de

; Fiorentin, Karine

; Lucio, Léia Carolina

; Faccin-Galhardi, Ligia Carla

; Ferreto, Lirane Elize Defante

; Lioni, Lucy Megumi Yamauchi

; Consolaro, Marcia Edilaine Lopes

; Vicari, Marcelo Ricardo

; Arbex, Marcos Abdo

; Pileggi, Marcos

; Watanabe, Maria Angelica Ehara

; Costa, Maria Antônia Ramos

; Giannini, Maria José S. Mendes

; Amarante, Marla Karine

; Khalil, Najeh Maissar

; Lima Neto, Quirino Alves de

; Herai, Roberto H.

; Guembarovski, Roberta Losi

; Shinsato, Rogério N.

; Mainardes, Rubiana Mara

; Giuliatti, Silvana

; Yamada-Ogatta, Sueli Fumie

; Gerber, Viviane Knuppel de Quadros

; Pavanelli, Wander Rogério

; Silva, Weber Claudio da

; Petzl-Erler, Maria Luiza

; Valente, Valeria

; Soares, Christiane Pienna

; Cavalli, Luciane Regina

; Silva Jr, Wilson Araujo

Genetics and Molecular Biology

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2021, Volume 44 Nº 1 elocation e20200452

Resumo: En | Texto: En | PDF: En

Abstract Coronavirus disease 2019 (COVID-19), caused by the Severe Acute Respiratory Syndrome Coronavirus type 2 (SARS-CoV-2), is the largest pandemic in modern history with very high infection rates and considerable mortality. The disease, which emerged in China’s Wuhan province, had its first reported case on December 29, 2019, and spread rapidly worldwide. On March 11, 2020, the World Health Organization (WHO) declared the COVID-19 outbreak a pandemic and global health emergency. Since the outbreak, efforts to develop COVID-19 vaccines, engineer new drugs, and evaluate existing ones for drug repurposing have been intensively undertaken to find ways to control this pandemic. COVID-19 therapeutic strategies aim to impair molecular pathways involved in the virus entrance and replication or interfere in the patients’ overreaction and immunopathology. Moreover, nanotechnology could be an approach to boost the activity of new drugs. Several COVID-19 vaccine candidates have received emergency-use or full authorization in one or more countries, and others are being developed and tested. This review assesses the different strategies currently proposed to control COVID-19 and the issues or limitations imposed on some approaches by the human and viral genetic variability.

https://doi.org/10.1590/1678-4685-gmb-2020-0452

11.

Development and validation of a simulator for teaching minimally invasive thoracic surgery in Brazil
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Martins Neto, Francisco

; Moura Júnior, Luiz Gonzaga de

; Rocha, Hermano Alexandre Lima

; Castro Neto, Josué Viana de

; Lima, Alexandre Marcelo Rodrigues

; Siqueira, Rafael Pontes de

; Castillo, Daniela Lima Chow

; Moura, Régis Luiz Sabiá de

; Valente, Acrísio Sales

Acta Cirúrgica Brasileira

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2021, Volume 36 Nº 5 elocation e360508

Resumo: En | Texto: En | PDF: En

ABSTRACT Purpose To develop and validate a chest cavity simulator for teaching video-assited thoracic surgery (VATS). Methods The first phase of the study consisted of developing a chest cavity simulator. A quasi-experimental study was performed in the second phase, and 25 surgeons and residents participated in a three-stage pulmonary suture experiment. The videos were recorded and timed. Generalized linear regression models for repeated measures were used to analyze the outcome change over time. Results The chest cavity simulator consists of a console simulating the left hemithorax. Among the participants, 96% rated the design, visual aspect, positioning ergonomics, and triangulation of the portals as very good or excellent (face validity). There was a decrease in suturing time in step 1 from 435.7 ± 105 to 355.6 ± 76.8 seconds compared to step 3 (p = 0.001). The evaluation of the simulation effectiveness and performance (content validity) was rated as very good or excellent by 96% ofparticipants. The most experienced surgeon showed significant reduction in procedure time (p = 0.021) (construct validity). Conclusions The thoracic cavity simulator is realistic, showing content and construct validity, and can be used in VATS training. The simulation model allowed skill gain in the endoscopic suture.

https://doi.org/10.1590/acb360508 149 downloads

12.

Caracterización de las propiedades físicas y modales de los raquis de racimos de mbocayá para recolección mecanizada
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Rodrigues de Oliveira, Zenil Ricardo Cunha

; Santos, Fábio Lúcio

; Magalhães Valente, Domingos Sarvio

; de Carvalho Pinto, Francisco de Assis

; Resende Rodrigues, Mateus

Revista de Ciencia y Tecnología

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Dez 2020, Nº 34 Páginas 1 - 10

Resumo: Es | Texto: Es | PDF: Es

65 downloads

13.

O praxema no contexto esportivo: a linguagem expressa pelo corpo, a exemplo do voleibol
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Oliveira, Raquel Valente de

; Ribas, João Francisco Magno

Revista Brasileira de Estudos Pedagógicos

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Ago 2020, Volume 101 Nº 258 Páginas 404 - 419

Resumo: Pt En Es | Texto: Pt En Es | PDF: Pt | PDF: En | PDF: Es

Resumo: O esporte configura-se como um fenômeno sociocultural de grande relevância para a humanidade, sendo uma das manifestações culturais mais difundidas socialmente, inclusive nos mais diferentes âmbitos de ensino. Como uma teoria que objetiva analisar a lógica interna das práticas motrizes, assim como das esportivas, e auxiliar em seu processo de ensino-aprendizagem, a Praxiologia Motriz caracteriza-se como uma ciência que apresenta diferentes conhecimentos. Um deles é o praxema, elemento específico do jogo, referente à linguagem corporal do jogador, que se manifesta por meio das ações motrizes, sendo uma forma de comunicação e de contracomunicação não verbal. Com base nisso, este artigo objetiva elucidar o praxema no contexto esportivo, tomando como exemplo o voleibol, e sua importância na leitura de jogo e na atuação de seus jogadores. Para isso, realizou-se uma pesquisa teórica, de cunho exploratório, mediante a qual se constatou que a orientação e a linguagem corporal dão indícios aos jogadores sobre qual praxema será manifestado e, portanto, a intencionalidade e as ações motrizes que serão executadas em determinada situação do jogo, tanto por companheiros quanto por adversários. Consequentemente, isso os auxiliará nos processos de análise, interpretação e antecipação, bem como na leitura de jogo e na tomada de decisão dos participantes dessa modalidade esportiva.

Abstract: Sport is a sociocultural phenomenon highly-relevant to humanity, being one of the most socially-diffused cultural manifestations among the various fields of teaching. Since this theory aims to analyze the internal logic of motor and sportive practices, as well as to aid in its teaching-learning-training process, Motor Praxeology is a science of varied knowledge. Praxema is one of them, a specific element of the game, referring to the player’s body language that manifests itself through motor actions, being a form of non-verbal (counter)communication. To this purpose, this research aims to elucidate the praxema in the sport context, taking volleyball as an example, and its importance for the reading of game and for the performance of players. Thus, this theoretical exploratory research verified that the orientation and corporal language indicates to players which praxema will be manifested and, therefore, the intentionality and the motor actions that will be executed in a given game situation, by both teammates and opponents. Consequently, this will assist them in the processes of analysis, interpretation and anticipation, as well as in the reading of the game and in the decision making of participants of that sporting modality.

Resumen El deporte se configura como un fenómeno sociocultural de gran relevancia para la humanidad, presentándose como una de las manifestaciones culturales más difundidas socialmente, en los más diferentes ámbitos de enseñanza. Como una teoría que objetiva analizar la lógica interna de las prácticas motrices, así como las deportivas, y auxiliar en su proceso de enseñanza-aprendizaje-entrenamiento, la praxiología motriz se caracteriza como una ciencia que presenta diferentes conocimientos. Uno de ellos es el praxema, elemento específico del juego, referente al lenguaje corporal del jugador que se manifiesta por medio de las acciones motrices, siendo una forma de (contra)comunicación no verbal. A partir de eso, esa investigación objetiva dilucidar el praxema en el contexto deportivo, a ejemplo del voleibol, y su importancia en la lectura del juego y en la actuación de sus jugadores. Para ello, se realizó una investigación teórica, de cuño exploratorio, por medio del cual se constató que la orientación y el lenguaje corporal dan indicios a los jugadores sobre qué praxema será manifestado y, por lo tanto, la intencionalidad y las acciones motrices que serán ejecutadas en una determinada situación del juego, tanto por compañeros como por adversarios. En consecuencia, esto los ayudará en los procesos de análisis, interpretación y anticipación, así como en la lectura de juego y en la toma de decisión de los participantes de esa modalidad deportiva.

https://doi.org/10.24109/2176-6681.rbep.101i258.4351 687 downloads

14.

Efecto del propóleo y aceite de orégano sobre parámetros productivos, leucocitos, metabolitos y estabilidad oxidativa de la pechuga de pollo
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Ibarra-Espain, José Inés

; Carmona-Gasca, Carlos Alfredo

; Escalera-Valente, Francisco

; Avila-Ramos, Fidel

Revista mexicana de ciencias pecuarias

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Mar 2020, Volume 11 Nº 1 Páginas 153 - 166

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract Propolis and oregano oil are natural substances used in various food industry applications. An evaluation was done of the effects of oregano oil (A) and propolis (P) on production parameters, leukocytes, blood chemistry and meat antioxidant stability in broilers. Animals (n= 480) were randomly allocated to four treatments with four replicates of 30 animals each. Four additive levels (mg/k feed) were tested: C (control)= 0; P= 100 mg propolis; A= 100 mg oregano oil; and AP= 50 mg P + 50 mg A. At 42 d breast meat lipid oxidative stability was estimated based on malondialdehyde (MDA) content. The oregano oil contained 43.47% thymol and 29.16 % carvacrol, while the propolis contained 5.6 mg flavonoids, 840 µg phenols and 138 µg Trolox® equivalents (antioxidant stability) per gram. Feed intake, weight gain, feed conversion and mortality were unaffected by the dietary additives. At 3 wk, blood eosinophil levels increased in treatment AP (P≤0.05), and at 6 wk triglycerides had increased in treatment A (P≤0.05). Meat lipid oxidative stability decreased in the AP treatment (P≤0.05). Neither oregano oil nor propolis improved production parameters, although they can stimulate immune response. When added to low-fat broiler diets they can increase blood triglycerides and in combination they compromise breast meat lipid oxidative stability.

Resumen Se estudió el efecto de propóleo (P) y aceite de orégano (A) sobre parámetros productivos, leucocitos, compuestos químicos en sangre y la estabilidad oxidativa de la carne de pechuga. Los pollos (n= 480) fueron distribuidos en cuatro tratamientos con cuatro repeticiones de 30 pollos. Se probaron cuatro niveles de aditivos: TES= 0, P= 100 mg de propóleos, A= 100 mg de aceite de orégano y AP= 50 mg de A + 50 mg de P por kilo de alimento. A los 42 días dos aves por repetición se sacrificaron y su pechuga se colectó para determinar su estabilidad oxidativa midiendo el malondialdehído (MDA). El aceite de orégano contenía 43.47 % de timol y 29.16 % de carvacrol, los propóleos 5.6 mg de flavonoides, 840 µg de fenoles y 138 µg equivalentes de Trolox® por gramo de propóleo. El consumo de alimento, ganancia de peso, conversión alimenticia y mortalidad no aumentaron por efecto de los aditivos. En aves de tres semanas incrementaron los eosinófilos con AP (P≤0.05), en aves de seis semanas aumentaron los triglicéridos con A (P≤0.05) y la oxidación de las grasas fue mayor en carne de aves que recibieron AP (P≤0.05). En conclusión, el aceite de orégano y propóleos no aumentaron los parámetros productivos, pueden estimular la respuesta inmune, en dietas bajas en grasa aumentan los triglicéridos en sangre y su combinación afecta la estabilidad oxidativa de la carne de pechuga.

https://doi.org/10.22319/rmcp.v11i1.4882 742 downloads

15.

Posición prono en pacientes con síndrome de insuficiencia respiratoria progresiva aguda por COVID-19
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González Moreno, Francisco Javier

; Salame Khouri, Latife

; Olvera Guzmán, Claudia I

; Valente Acosta, Benjamín

; Aguirre Sánchez, Janet

; Franco Granillo, Juvenal

Medicina crítica (Colegio Mexicano de Medicina Crítica)

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Fev 2020, Volume 34 Nº 1 Páginas 73 - 77

Resumo: Es En Pt | Texto: Es En Pt | PDF: Es | PDF: En | PDF: Pt

Resumen: Aproximadamente hasta 5% de los pacientes afectados por la infección por SARS-CoV-2 (COVID-19) requieren estancia en la Unidad de Cuidados Intensivos. De ellos, hasta 71% presentarán Síndrome de Insuficiencia Respiratoria Progresiva Aguda (SIRPA). Colocar a los pacientes en posición prono es una técnica que ha demostrado resultados favorables en aquéllos con hipoxemia refractaria por SIRPA grave. Las Guías Americanas y Europeas actuales del manejo del COVID-19 recomiendan posición prono para mejorar la hipoxemia con resultados variables. Ésta es una técnica de bajo costo que podría mejorar el pronóstico de estos pacientes. Presentamos cinco pacientes con resultados variables en posición prono y concluimos que, al menos en esta primera muestra, hay mejoría de todos en la oxigenación, así como en la imagen radiográfica, lo cual no necesariamente se correlaciona con una mejoría global del paciente.

Abstract: Approximately, up to 5% of the patients infected with SARS-CoV-2 (COVID-19) need to be treated in the Critical Care Unit. Of all these patients, up to 71% will develop Acute Respiratory Distress Syndrome (ARDS). The technique of placing the patients in prone position has had good results in patients with refractory hypoxemia secondary to severe ARDS. The American and European guidelines recommend the use of prone position to improve sever hypoxemia of COVID-19 patients. It is a low cost technique that could improve the outcome in this patients. We present the results of 5 of our first patients with COVID-19 using prone position concluding that at least, in this first sample, there is a good response with improvement of hypoxemia as well as improvement in the chest X-ray images but we cannot conclude if it has an impact in the outcome of the patient, defined as survival or days in mechanical ventilation.

Resumo: Aproximadamente 5% dos pacientes afetados pela infecção por SARS-CoV-2 (COVID-19) necessitam de uma internação na Unidade de Terapia Intensiva. Desse modo, até 71% apresentarão Síndrome da Insuficiência Respiratória Progressiva Aguda (SIRPA). A colocação de pacientes em decúbito ventral é uma técnica que demonstrou resultados favoráveis em pacientes com hipoxemia refratária devido à SIRPA grave. As diretrizes americanas e européias atuais para o manejo do COVID-19 recomendam uma posição propensa a melhorar a hipoxemia com resultados variáveis. É uma técnica de baixo custo que poderia melhorar o prognóstico desses pacientes. Apresentamos 5 pacientes com resultados variáveis em decúbito ventral e concluímos que, pelo menos nessa primeira amostra, há uma melhora na oxigenação e na imagem radiográfica, que não necessariamente se correlaciona com uma melhora geral no paciente.

https://doi.org/10.35366/93283 77 downloads

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