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[SciELO Preprints] - Cardiovascular Statistics – Brazil 2023
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Oliveira, Gláucia Maria Moraes de Brant, Luisa Campos Caldeira Polanczyk, Carisi Anne Malta, Deborah Carvalho Biolo, Andreia Nascimento, Bruno Ramos Souza, Maria de Fatima Marinho de Lorenzo, Andrea Rocha De Fagundes Júnior, Antonio Aurélio de Paiva Schaan, Beatriz D. Silva, Christina Grüne de Souza e Castilho, Fábio Morato de Cesena, Fernando Henpin Yue Soares, Gabriel Porto Xavier Junior, Gesner Francisco Barreto-Filho, Jose Augusto Soares Passaglia, Luiz Guilherme Pinto-Filho, Marcelo Martins Machline-Carrion, M. Julia Bittencourt, Marcio Sommer Pontes Neto, Octavio M. Villela, Paolo Blanco Teixeira, Renato Azeredo Stein, Ricardo Sampaio, Roney Orismar Gaziano, Thomaz A. Perel, Pablo Roth, Gregory A. Ribeiro, Antonio Luiz Pinho

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Data de publicação: 2023-12-14

Resumo: En Pt

The publication Cardiovascular Statistics – Brazil aims to provide an annual compilation of data and research on the epidemiology of CVDs in Brazil.  The report integrates official statistics from the Brazilian Ministry of Health and other governmental entities alongside data from the GBD project, coordinated by the IHME at the University of Washington. Additionally, it incorporates data derived from various sources and scientific studies, including cohorts and registries, that relate to CVDs and their associated risk factors. This publication is intended for a wide range of individuals, including researchers, clinicians, patients, healthcare policymakers, media professionals, the general public, and other interested parties seeking extensive national data about heart disease and stroke.  Volunteer researchers from various Brazilian universities and research institutions carry out the project. The group is led by a five-member steering committee (ALPR, CAP, DCM, GMMO, and LCCB). The Brazilian Society of Cardiology fully supports this initiative, and the project receives collaborative support from the GBD Brazil Network and an International Committee (GAR, PP, and TAG) from both the IHME/University of Washington (GAR) and the World Heart Federation (PP and TAG). 

A publicação Estatística Cardiovascular – Brasil tem por objetivo fornecer uma compilação anual dos dados e das pesquisas sobre a epidemiologia das DCV no Brasil.  Este documento integra as estatísticas oficiais do Ministério da Saúde do Brasil e outras entidades governamentais ao lado de dados do projeto GBD, coordenado pelo IHME da Universidade de Washington. Além disso, incorpora dados derivados de várias fontes e estudos científicos, inclusive coortes e registros, relacionados às DCV e fatores de risco associados. Esta publicação destina-se a um público variado, incluindo pesquisadores, clínicos, pacientes, formuladores de políticas de saúde, profissionais da mídia, o público em geral e todos aqueles que buscam dados nacionais abrangentes sobre DCV e acidente vascular cerebral. Pesquisadores voluntários de várias universidades e instituições de pesquisa brasileiros realizaram este projeto. O grupo é liderado por um comitê diretivo com cinco membros (ALPR, CAP, DCM, GMMO e LCCB). A Sociedade Brasileira de Cardiologia apoia integralmente esta iniciativa e o projeto recebe colaboração da Rede GBD Brasil1 e do GBD International Committee (GAR, PP e TAG) do IHME/Universidade de Washington (GAR) e da World Heart Federation (PP e TAG). 

https://doi.org/10.1590/SciELOPreprints.7707

Medical Research Trends in Undergraduate Psychological Theses: A report from a South American country
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Carbajal-León, Carlos

; Oré-Kovacs, Nicole

; Caycho-Rodríguez, Tomás

; Yupanqui-Lorenzo, Daniel E.

; Llerena-Espezúa, Ximena

; Becerra Meza, Alvaro Gabriel

; Torales, Julio

; Díaz Fernandez, Romy

Medicina clínica y social

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Dez 2023, Volume 7 Nº 3 Páginas 133 - 141

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

RESUMEN Introducción: La investigación psicológica puede ser desarrollada por investigadores y también por estudiantes de pregrado o posgrado. En un nivel de pregrado, la investigación psicológica es especialmente desafiante debido a la capacidad limitada de los estudiantes para desarrollar problemas de investigación y enfoques metodológicos coherentes y lógicos. Objetivo: El objetivo de este estudio es identificar las principales tendencias de investigación en las tesis de grado en psicología de las universidades peruanas. Como objetivo específico, se distinguieron las tendencias de diseño de investigación cuantitativa y cualitativa. Metodología: Se realizó una revisión sistemática descriptiva y retrospectiva de tesis de investigación en psicología de estudiantes universitarios peruanos, iniciando el proceso de extracción de datos a partir de la base de datos RENATI para una fase inicial de selección. El análisis de datos se realizó en dos fases. Resultados: Primero se organizaron los datos en relación a su frecuencia de las categorías de sexo de los autores, las universidades se catalogaron como universidades 1, 2, 3, 4 y 5 según su ranking, las categorías de años de publicación, número de autores Se obtuvieron diseños, tipo de metodología y área de publicación. A partir de estas categorías se establecieron estadísticos descriptivos de frecuencia. En la siguiente fase, se utilizaron análisis textuales lexicométricos y estadísticos para identificar los temas de tendencia de investigación. Discusión: Los principales resultados muestran que diferentes temas se enmarcan predominantemente dentro de la línea de investigación de la psicología clínica y de la salud, principalmente los relacionados con los estilos de afrontamiento, el estrés psicológico y el bienestar.

ABSTRACT Introduction: Psychological research can be developed by researchers and also by undergraduate or postgraduate students. In an undergraduate level, psychological research is specially challenging due to the limited ability of students to develop coherent and logical research problems and methodological approaches. Objective: The objective of this study is to identify the main research trends in undergraduate psychological theses from Peruvian universities. As a specific objective, quantitative and qualitative research design trends were distinguished. Methods: A descriptive and retrospective systematic review of psychological research thesis of Peruvian undergraduate students was conducted, starting the data extraction process starting with RENATI database for an initial screening phase. Data analysis was conducted in two phases. Results: First, data was organized in relation to its frequency of the categories of authors' sex, the universities were catalogued as universities 1, 2, 3, 4 and 5 according to their ranking, the categories of years of publication, number of authors, designs, type of methodology, and area of publication were obtained. Descriptive frequency statistics were established based on these categories. In the next phase, lexicometric and statistical textual analysis were used to identify research trending topics. Discussion: The main results show that different topics are predominantly framed within the clinical and health psychology line of research, mainly those related to coping styles, psychological stress and wellbeing.

https://doi.org/10.52379/mcs.v7i3.309

Bienestar financiero y rendimiento académico de estudiantes universitarios
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Fernández Lorenzo, Angie

; Apuntes García, Viviana Cecilia

; Cisneros Benavides, Diego Gabriel

Infodir

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Abr 2022, Nº 37 elocation e1092

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

ABSTRACT Introduction: Academic performance is an integral category, which depends on various factors of socioeconomic, school, family situation, cultural and financial level. Specifically, financial well-being can explain the academic performance levels of university students. Objective: To determine if there is a significant relationship between financial well-being and academic performance of students at the University of Armed Forces ESPE. Methods: A descriptive correlational research was conducted. A survey was applied to a significant sample of students from sixth to ninth grade of all the careers of the Universidad de las Fuerzas Armadas ESPE, Ecuador. The analysis of the results was carried out using descriptive and inferential statistical techniques. Results: A low financial well-being of students was determined, as well as dependency relationships and significant correlations between several indicators related to financial well-being and academic performance, which denoted that this was one of the variables that explain the pedagogical category in the context of the university studied. Conclusions: The relationships between the variables studied indicate that financial well-being influences the academic performance of students at the University of the Armed Forces ESPE, which poses great challenges for planning and public policy according to the demands of Ecuadorian society and economy, and specifically in the field of higher education.

RESUMEN Introducción: El rendimiento académico es una categoría integral, que depende de diversos factores de tipo socioeconómico, escolar, situación familiar, nivel cultural y financiero. Específicamente el bienestar financiero puede explicar los niveles de rendimiento académico de los estudiantes universitarios. Objetivo: Determinar si existe una relación significativa entre el bienestar financiero y el rendimiento académico de los estudiantes de la Universidad de las Fuerzas Armadas ESPE. Métodos: Se realizó una investigación descriptiva correlacional. Se aplicó una encuesta a una muestra significativa de los estudiantes de sexto a noveno nivel de todas las carreras de la Universidad de las Fuerzas Armadas ESPE, Ecuador. El análisis de los resultados se realizó mediante técnicas de estadística descriptiva e inferencial. Resultados: Se determinó un bajo bienestar financiero de los estudiantes, así como relaciones de dependencia y correlaciones significativas entre varios indicadores relativos al bienestar financiero y el rendimiento académico, que denotaron que esta fueron una de las variables que explica la categoría pedagógica en el contexto de la universidad estudiada. Conclusiones: Las relaciones entre las variables estudiadas indican que el bienestar financiero influye en el rendimiento académico de los estudiantes de la Universidad de las Fuerzas Armadas ESPE, lo cual plantea grandes retos para la planificación y política pública acorde a las demandas de la sociedad y economía ecuatorianas, y específicamente en el ámbito de la educación superior.

Estatística Cardiovascular – Brasil 2021
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Oliveira, Gláucia Maria Moraes de

; Brant, Luisa Campos Caldeira

; Polanczyk, Carisi Anne

; Malta, Deborah Carvalho

; Biolo, Andreia

; Nascimento, Bruno Ramos

; Souza, Maria de Fatima Marinho de

; Lorenzo, Andrea Rocha De

; Fagundes Júnior, Antonio Aurélio de Paiva

; Schaan, Beatriz D.

; Castilho, Fábio Morato de

; Cesena, Fernando Henpin Yue

; Soares, Gabriel Porto

; Xavier Junior, Gesner Francisco

; Barreto Filho, Jose Augusto Soares

; Passaglia, Luiz Guilherme

; Pinto Filho, Marcelo Martins

; Machline-Carrion, M. Julia

; Bittencourt, Marcio Sommer

; Pontes Neto, Octavio M.

; Villela, Paolo Blanco

; Teixeira, Renato Azeredo

; Sampaio, Roney Orismar

; Gaziano, Thomaz A.

; Perel, Pablo

; Roth, Gregory A.

; Ribeiro, Antonio Luiz Pinho

Arquivos Brasileiros de Cardiologia

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Jan 2022, Volume 118 Nº 1 Páginas 115 - 373

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

https://doi.org/10.36660/abc.20211012

Influência dos anéis de crescimento nas propriedades mecánicas da madeira de Pinus
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Mayard, Raynord

; Alcântara Segundinho, Pedro Gutemberg de

; Santos, Lorenzo Lube dos

; Gonçalves, Fabricio Gomes

; Silva, João Gabriel Missia da

Madera y bosques

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2022, Volume 28 Nº 3 elocation e2832364

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

Abstract Visual inspection is the first parameter of the quality of materials, especially when it comes to wood, which has natural defects, such as Pinus wood. This study aimed to evaluate the relationship between the growth rings and the physical-mechanical characteristics of the Loblolly and Slash pine wood. 250 wooden specimens were used, with dimensions of approximately 89 mm³ × 39 mm³ × 90 mm³. To determine the proportion of the area and thickness of the latewood in the growth rings, the faces of the specimens were scanned, and the proportion of the area of the latewood/earlywood was quantified by means of analyzer software. The specimens were separated by the number of growth rings and their form of presentation in the transversal plane, totaling five treatments. Then, tests of compression perpendicular to grain were carried out using four different methods (ABNT - Fc, 90, ISO - F c, 90, ASTM - Fc, 90, ABNT- Ec, 90). As a result, a significant difference was found between the means of the five treatments used for compression perpendicular to grain. The mathematical models found were less fit. In conclusion, the apparent wood density was explained, in part, by the number of years of growth, as well as the proportion and thickness of the latewood. The normal compressive strength of the fibers showed a significant difference between the ISO 13910, NBR 7190, and ASTM D143 standards.

Resumo A inspeção visual é o primeiro parâmetro de qualidade dos materiais, sobretudo, quando se refere à madeira, que possui defeitos naturais, a exemplo da madeira de Pinus. Este estudo teve como objetivo avaliar a relação dos anéis de crescimento e as características físico-mecânicas da madeira de Pinus taeda e Pinus elliottii. Foram utilizados 250 corpos de prova de madeira, com dimensões, aproximadamente, de 89 mm³ × 39 mm³ × 90 mm³. Para a determinação da proporção da área e espessura do lenho tardio nos anéis de crescimento, as faces dos corpos de prova foram escaneadas, e a proporção da área de lenho tardio/inicial quantificada por meio de software analisador. Os corpos de prova foram separados pelo número de anéis de crescimento e sua forma de apresentação no plano transversal, totalizando cinco tratamentos. Em seguida, foram realizados ensaios de resistência de compressão normal às fibras por meio de quatro diferentes métodos (ABNT - Fc,90, ISO - Fc,90, ASTM - Fc,90, ABNT- Ec,90). Como resultado, foi encontrada diferença significativa entre as médias dos cinco tratamentos utilizados para a resistência à compressão normal às fibras. Os modelos matemáticos encontrados foram menos ajustados. Em conclusão, a densidade aparente da madeira foi explicada, parcialmente, pelos números de anéis de crescimento, pela proporção de lenho tardio e pela espessura de lenho tardio. A resistência à compressão normal às fibras mostrou diferença significativa entre as normas ISO 13910, NBR 7190 e ASTM D143.

https://doi.org/10.21829/myb.2022.2832364

Hormonal endogenous changes in response to the exogenous 6-benzylaminopurine application in pre- and post-harvesting lilium flower stalks
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Mantilla, Gunther

; Lorenzo, Gabriel Antonio

; Mascarini, Libertad

Ornamental Horticulture

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Set 2021, Volume 27 Nº 3 Páginas 357 - 364

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

Resumo Os fitormônios desempenham um papel fundamental na regulação das respostas das plantas ao estresse. As citocinas são um tipo de fitormônios envolvidos na regulação de muitos processos biológicos importantes relacionados ao crescimento, desenvolvimento e resposta a variáveis ambientais. A aplicação exógena de citocinas aumenta a possibilidade de retardar a senescência; entretanto, este é um processo fisiológico e, sob certas condições, processos de degradação podem ser desencadeados. Foi estudado o efeito da aplicação de 6-benzilaminopurina e as alterações hormonais endógenas envolvidas, nas hastes florais de lírio japonês após seu corte. Para melhorar a vida de vaso e a qualidade das hastes florais de Lilium longiflorum ‘Brindisi’, estes foram pulverizados com 6-BAP na concentração de 300 ppm nas fases de pré-colheita, pós-colheita e pré e pós-colheita e foram comparados com hastes não pulverizadas. A aplicação de 6-BAP causou alterações hormonais endógenas nos níveis de ácido abscísico e citocinina, e o tratamento mais eficaz foi a pulverização pré-colheita. Este tratamento mostrou-se um método adequado para melhorar a tolerância da haste ao estresse pós-colheita, pois retardou o aparecimento dos sintomas de senescência e reduziu a velocidade de degradação da clorofila com diferenças de até 10% em relação às hastes não tratadas. Além disso, a abertura das flores foi atrasada em até 2 dias, embora não houvesse diferenças significativas na vida total de vaso.

Abstract Phyto-hormones play a key role in regulating plant responses to stress. Cytokines are a type of phyto-hormones involved in the regulation of many important biological processes related to growth, development, and response to environmental variables. The exogenous application of cytokines increases the possibility of delaying senescence; however, this is a physiological process, and, under certain conditions, degradation processes may be triggered. The effect of 6-bencilaminopurine application and the endogenous hormonal changes involved in lilies floral stalks after their cutting were studied. In order to improve vase life and quality of Lilium longiflorum ‘Brindisi’ flower stalks, they were sprayed with 6-BAP, at a concentration of 300 ppm at pre-harvest, post-harvest, and pre- and post-harvest stages. After that, they were compared to non-sprayed control stalks. The application of 6-BAP caused endogenous hormonal changes in abscisic acid and cytokinin levels, and the most effective treatment was pre-harvest spraying. This treatment proved to be an appropriate method to improve the stalk tolerance to post-harvest stress as it delayed the appearance of senescence symptoms and reduced the speed of chlorophyll degradation with differences of up to 10% with respect to untreated stalks. In addition, the opening of flowers was delayed by up to 2 days, although there were no significant differences in total vase life.

https://doi.org/10.1590/2447-536x.v27i3.2337 153 downloads

Sexually Transmitted Infections in the Community of Santa Ana Batha, Hidalgo, Mexico
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Muller Sanjuan, José Alejandro

; Ruvalcaba Ledezma, Jesús Carlos

; Dorantes Peña, Horacio Gabriel

; Ortega Villegas, Karla Mercedes

; Reynoso Vázquez, Josefina

; Aguirre Rembao, Lorenzo Octavio

; Reyes Garnica, Alfonso

Journal of Negative and No Positive Results

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2021, Volume 6 Nº 7 Páginas 968 - 976

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

Abstract Sexually transmitted infections [STI] represent a serious public health problem, which triggers different biological, economic and social complications, which is also related to migration, prostitution, and other factors. The present investigation was carried out with the aim of establishing an endemic channel on Sexually Transmitted Infections and its association with migration, vacation periods and other factors of risk. Methods. A retrospective descriptive observational study was carried out from a bibliographic review of the subject on the internet network retrospectively from 2016 to 2010 collected from SUIVE, in order to establish the endemic ITS channel of the Santa Ana Batha region, Chilcuautla Municipality, Hidalgo, compared with the influx of spas in the study region, it was also taken into account that the region is a migration step from the south to the north, and the epidemiological weeks were also related to the vacation periods. Results. it was obtained as a result that during these periods the number of cases increased considerably and exceeded the alert zone. Conclusion. The results obtained allow to establish as risk factors for STI the phenomenon of migration, the vacation periods and the influx to spas during vacation periods. This study allows us to establish that if we do not pay attention to risk factors, STIs will continue to mean negative results in the health of those involved.

Resumen Las infecciones de transmisión sexual [ITS] representan un grave problema de salud pública, que desencadena distintas complicaciones biológicas, económicas y sociales, que también se relacionan con la migración, la prostitución y otros factores. La presente investigación se realizó con el objetivo de establecer un canal endémico sobre Infecciones de Transmisión Sexual y su asociación con la migración, los periodos vacacionales y otros factores de riesgo. Métodos. Se realizó un estudio Observacional descriptivo de caracter retrospectivo a partir de una revisión bibliográfica del tema en la red de internet de forma retrospectiva del año 2016 al 2010 recolectada del SUIVE, con el fin de establecer el canal ITS endémico de la región Santa Ana Batha, Municipio Chilcuautla, Hidalgo, comparado con la afluencia de balnearios en En la región de estudio, también se tomó en cuenta que la región es un paso migratorio de sur a norte, y las semanas epidemiológicas también se relacionaron con los períodos vacacionales. Resultados. Se obtuvo como resultado que durante estos períodos el número de casos aumentó considerablemente y superó la zona de alerta. Conclusión. Los resultados obtenidos permiten establecer como factores de riesgo de ITS el fenómeno de la migración, los períodos vacacionales y la afluencia a balnearios durante los períodos vacacionales.

https://doi.org/10.19230/jonnpr.4103

Sexually Transmitted Infections in the community of Santa Ana Batha, Hidalgo, Mexico
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Muller-Sanjuan, José Alejandro

; Ruvalcaba-Ledezma, Jesús Carlos

; Dorantes-Peña, Horacio Gabriel

; Ortega-Villegas, Karla Mercedes

; Reynos-Vázquez, Josefina

; Aguirre-Rembao, Lorenzo Octavio

; Reyes-Garnica, Alfonso

Journal of Negative and No Positive Results

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2021, Volume 6 Nº 7 Páginas 968 - 976

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

Abstract Sexually transmitted infections [STI] represent a serious public health problem, which triggers different biological, economic and social complications, which is also related to migration, prostitution, and other factors. The present investigation was carried out with the aim of establishing an endemic channel on Sexually Transmitted Infections and its association with migration, vacation periods and other factors of risk. Methods. A retrospective descriptive observational study was carried out from a bibliographic review of the subject on the internet network retrospectively from 2016 to 2010 collected from SUIVE, in order to establish the endemic ITS channel of the Santa Ana Batha region, Chilcuautla Municipality, Hidalgo, compared with the influx of spas in the study region, it was also taken into account that the region is a migration step from the south to the north, and the epidemiological weeks were also related to the vacation periods. Results. It was obtained as a result that during these periods the number of cases increased considerably and exceeded the alert zone. Conclusion. The results obtained allow to establish as risk factors for STI the phenomenon of migration, the vacation periods and the influx to spas during vacation periods. This study allows us to establish that if we do not pay attention to risk factors, STIs will continue to mean negative results in the health of those involved.

https://doi.org/10.19230/jonnpr.4103

Análisis axiológico de la percepción del riesgo en salud
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Lorenzo Felipe, Deysi O.

; Vinardell Lorenzo, Juan Carlos

; Garrido Tapia, Elber

; Gabriel Aguilera, Edilio Reynaldo

; Torres Guerra, Andria

Correo Científico Médico

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Jun 2020, Volume 24 Nº 2 Páginas 445 - 464

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

ABSTRACT Introduction: in the solution of health problems, the application of Social Sciences, seen from an axiological perspective, oriented towards a conceptual renewal of Public Health plays a decisive role. The axiological approach and communicative competence, define the essentials to achieve a critical citizen awareness, contributing to the development of risk perception, to improve the health of the population. Objective: to analyze from the axiological perspective the perception of the risk in health, to favor the modification of the modes of action in the current circumstances. Method: a materialistic dialectical analysis was carried out with a critical vision of risk perception, based on the literature review and documentary compilations, from multiple approaches, aimed at the conceptual renewal of Public Health from an axiological perspective. Theoretical and empirical methods were used, with the objective of providing budgets for the attention to the vulnerabilities identified in the community scenarios. Results: the axiological perspective of risk perception is novel for research and scientific praxis in health. It contributes to the development of a critical awareness towards the improvement of the environment. The significance of communicative competence, the appropriate use of information sources and their interpretation are appreciated. The need to carry out studies from a conception that axiological reflect criteria and concerns of the population is highlighted. Conclusions: the axiological approach to risk perception is a priority in health services. Communication becomes a mediator for the process of study and decision making, fosters learning environments and a critical awareness, for individual and collective insertion, manifests itself in the transformation of society from its surroundings.

RESUMEN Introducción: En la solución de los problemas de salud desempeña un rol determinante la aplicación de las Ciencias Sociales, vistas desde una perspectiva axiológica, orientadas a una renovación conceptual de la Salud Pública. El enfoque axiológico y la competencia comunicativa definen lo esencial para alcanzar una conciencia crítica ciudadana, al contribuir al desarrollo de la percepción del riesgo, para mejorar la salud de la población. Objetivo: Analizar desde la perspectiva axiológica la percepción del riesgo en salud, para favorecer la modificación de los modos de actuación en las circunstancias actuales. Método: Se realizó un análisis dialéctico materialista con visión crítica acerca de la percepción del riesgo, a partir de la revisión bibliográfica y recopilaciones documentales, desde múltiples enfoques, encaminados a la renovación conceptual de la Salud Pública desde una perspectiva axiológica. Se utilizaron métodos teóricos y empíricos, con el objetivo de aportar presupuestos para la atención a las vulnerabilidades identificadas en los escenarios comunitarios. Resultados: La perspectiva axiológica de la percepción del riesgo tiene carácter novedoso para la investigación y la praxis científica en salud. Contribuye al desarrollo de una conciencia crítica hacia el mejoramiento del entorno. Se aprecian la significación de la competencia comunicativa, el adecuado uso de fuentes de información y su interpretación. Se destaca la necesidad de realizar estudios desde una concepción que axiológica reflejen criterios y preocupaciones de la población. Conclusiones: El enfoque axiológico de la percepción del riesgo es prioridad en los servicios de salud. La comunicación se convierte en mediadora para el proceso de estudio y toma de decisiones, propicia entornos de aprendizaje y una conciencia crítica, para la inserción individual y colectiva; se manifiesta en la transformación de la sociedad desde su entorno.

10.

Effects of pH and ionic strength on the protease activity of gastric extracts from the Coho salmon Oncorhynchus kisutch
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Márquez, Lorenzo

; Hernández, Adrián J.

; Carvalho, Edison S.M.

; Morales, Gabriel A.

; Dantagnan, Patricio

; Díaz, Manuel

; Moyano, Francisco J.

Latin american journal of aquatic research

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Nov 2019, Volume 47 Nº 5 Páginas 860 - 864

Resumo: En | Texto: En | PDF: En

ABSTRACT The activity of fish acid proteases is strongly dependent on the pH, and many basic and applied works had focused on researching the pH-profile of digestive proteases using different buffered media. Nevertheless, enzymatic activity is also known to be affected by the ionic strength (IS) of the medium. The present work is aimed at researching the combined effects of pH (2.5, 3.0, 3.5, 3.75 and 4.0) and IS (50, 100 and 200 mM) on the protease activity of gastric extracts of juvenile Coho salmon Oncorhynchus kisutch. It is concluded that the activity of Coho salmon gastric proteases is maximal at pH 2.5-3.0, drops towards pH 4.0 irrespective of ionic strength, and they showed a lower activity at IS 50 mM in comparison to IS 100 or 200 mM. The present results point out to the convenience of considering the effect of ionic strength when measuring the activity of fish gastric proteases.

https://doi.org/10.3856/vol47-issue5-fulltext-16 713 downloads

11.

Digestive coordination of the gastric function in Atlantic salmon Salmo salar juveniles
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Bravo, Jonathan P.

; Hernández, Adrián J.

; Morales, Gabriel

; Dantagnan, Patricio

; Márquez, Lorenzo

Latin american journal of aquatic research

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Dez 2018, Volume 46 Nº 5 Páginas 1083 - 1090

Resumo: En | Texto: En | PDF: En

ABSTRACT: Artificial diets have been reported to produce suboptimal pH values in the stomach of salmonid species. Therefore, it is interesting to investigate the gastric function of different species fed commercial diets. In the present work, two groups of Atlantic salmon juveniles were either fasted or fed with a commercial diet. The gastric and duodenal pH values were measured over a 25 h post-prandial period and, dry matter, moisture and protease activity in the gastric chyme of the fed group were also determined. In the fed group, the gastric pH dropped to 3.5, and duodenal pH increased from 7.0 to 7.5 at the 4th h post-feeding, whereas fasted fish showed no significant changes in the gastric pH or duodenal pH. Fed animals showed: i) two discrete events of evacuation, before the 2nd hand after the 8th h of digestion, ii) a change in the moisture of the gastric chyme from less than 10% in the diet to 60% at the 2nd h post-feeding, and iii) a maximal gastric proteases activity of 600 U mL-1 at the 2nd h followed by a nearly constant of value of ~300 U mL-1. It can be concluded that the juveniles of the Atlantic salmon can suitably acidify a commercial diet to a value generally accepted as optimal for gastric proteases of fish, and to retain about 2/3 of the ingested diet under such conditions and at a nearly constant protease activity until the 8th h of digestion.

https://doi.org/10.3856/vol46-issue5-fulltext-20 470 downloads

12.

Planting density and its effect on plant height and rosette quality in ornamental cabbages for cutting
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Ree Kim, Yoo

; Mascarini, Libertad

; Lorenzo, Gabriel Antonio

; González, Mariel Norma

Revista de la Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo

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Dez 2018, Volume 50 Nº 2 Páginas 49 - 64

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

Brassica oleracea L. var. acephala is an ornamental cabbage cultivated as foliage for cutting due to the coloration of the rosette formed by its apical leaves. The plant height and the diameter of the rosettes may be modified through the planting density; however, there is not enough information about this. The aim of this study was to assess the influence of the planting density of four cultivars of B. oleracea L. var. acephala of the series F1 Crane: Bicolor, Pink, Red and Rose, on the plant height, rosette diameter, number of leaves, leaf area, root volume, and aerial and root fresh and dry weight. The experimental design was completely randomized, with six repetitions. The combination of density (56 plants.m-2 and 28 plants.m-2) and cultivar allowed obtaining eight treatments. The results showed that the treatments with high planting density improved commercial quality indices: achieving greater stem height and more compact and smaller diameter rosettes, leading to lower values of the rest of the vegetative variables evaluated. Also, as productive alternative, it would allow a more efficient use of the soil and reduce crop management activities such as manual leaves removal.

Brassica oleracea L. var. acephala se cultiva como follaje para corte debido a la coloración de la roseta de hojas apicales de este repollo ornamental. Es posible modificar la altura de las plantas y el diámetro de las rosetas, para mejorar la calidad comercial, a través de la densidad de plantación, sin embargo, no hay suficiente información al respecto. Se evaluó la influencia de la densidad de plantación en cuatro cultivares de la serie F1 Crane: Bicolor, Pink, Red y Rose, sobre altura del tallo, diámetro de roseta, número de hojas, área foliar, volumen radical y peso fresco y seco, particionados en vástago y raíz. El diseño experimental fue completamente aleatorizado (DCA), con seis repeticiones. Por combinación de factores densidad (56 pl.m-2 y 28 pl.m-2) y cultivar se obtuvieron 8 tratamientos. Una alta densidad de plantación aumentó la calidad comercial de las plantas, las que tuvieron rosetas apicales más compactas y de menor diámetro y mayor altura del tallo, reduciendo el resto de las variables vegetativas. Asimismo, permitiría un uso más eficiente de la tierra disminuyendo tareas de manejo del cultivo tales como el deshoje de las varas.

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13.

La contemporización biliar percutánea como estrategia en el tratamiento de la lesión quirúrgica de la vía biliar
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Álvarez Rodríguez, Juan E.

; Lorenzo, Alejandro

; Stagnaro, Gabriel

; Sánchez, Nicolás

; Klappenbach, Roberto

; Kohan, Gustavo

; Di Tulio, Ornella

; Sehringer, Ingrid

; Chan, Débora

; Chiappeta Porras, Luis T.

Revista argentina de cirugía

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Mar 2018, Volume 110 Nº 1 Páginas 1 - 10

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

Background: Percutaneous biliary drainage (PtibD) has been used to treat surgical bile duct injuries and as an adjunct to repair surgery. Objective: To present the results of PtidB in a consecutive series of patents with surgical injuries or sequelae of surgical repairs of the bile duct. Material and methods: Patents initally treated with PtibD were analyzed. Strasberg classificaton was used and recorded: type of operaton, surgical approach, number of reoperatons, biliary repair atempts and clinical presentaton. In patents with bilioenteric continuity, percutaneous biliary treatment was the frst opton. PtibD was evaluated in the pre, intra and postoperative period and in the pre dilataton period. Results: At the Hospital Argerich, from 2000 to 2014, 76 patents were included, 68.4% women and 97% post cholecystectomy. The lesions were Type E2 to E5 in 77% of cases. The percentage of patents with controlled symptoms before surgery or percutaneous dilataton was: jaundice 59%, cholestasis 5%, cholangits 91%, biliary fistula 87%, pruritus 90%, withdrawal hepaticos-toma or T-Kehr 91%. In 13 of 16 patents with external biliary fistula, the catheter could be internalized to abdominal cavity. In 70% of 52 operated patents, the catheter facilitated the identificaton of the proximal biliary duct. In the postoperative period, there were no biliary fistulas of the bilioenteric anastomoses and 3 patents with residual biliary stenosis and 2 with isolated biliary segments were detected and treated. Conclusion: PtibD is helpful in the pre, intra and postoperative treatment of patents with surgical bile duct injuries.

Antecedentes: El drenaje biliar percutáneo (DBP) se ha utlizado para tratar lesiones quirúrgicas de la vía biliar y como complemento de la cirugía de reparación. Objetivo: Presentar los resultados del drenaje biliar percutáneo en una serie consecutiva de pacientes con lesiones quirúrgicas o secuelas de reparaciones quirúrgicas de la vía biliar. Material y Métodos: Se analizaron los pacientes tratados inicialmente mediante DBP. Se utlizó la cla-sificación de Strasberg y se registró: tpo de operación, vía de abordaje, número de reintervenciones, intentos de reparación biliar y presentación clínica. En los pacientes con continuidad bilioentérica, la primera opción fue el tratamiento percutáneo. Se evaluó el DBP en el pre, intra y postoperatorio y pre dilatación percutánea Resultados: En el hospital Argerich, período 2000 a 2014, se incluyeron 76 enfermos, 68.4% mujeres y post colecistectomía 97%. El 77,6% fueron lesiones Tipo E2 a E5. El porcentaje de enfermos con control de síntomas pre cirugía o dilatación percutánea fue: ictericia 59%, colestasis 5%, colangits 91%, fistula biliar 87%, prurito 90%, retro del hepaticostoma o Kehr 91%. En 13 de 16 pacientes con fistula biliar externa se internalizó el catéter biliar a la cavidad abdominal. En el 70% de 52 pacientes operados, el catéter facilitó la identificación de la vía biliar proximal. En el postoperatorio, no hubo fistulas biliares de la anastomosis bilioentérica, y se detectaron 3 pacientes con estenosis biliar residual y 2 con segmentos biliares aislados que fueron tratados. Conclusión: El DBP resulta útl en el preoperatorio, intraoperatorio y postoperatorio de los pacientes con lesiones quirúrgicas biliares.

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14.

Recomendaciones de manejo de pacientes con asistencia circulatoria mecánica de corta duración
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Rossel, Víctor

; Díaz, Rodrigo

; Merello, Lorenzo

; Aranguiz-Santander, Ernesto

; Stockins, Aleck

; Olivares, Gabriel

Revista médica de Chile

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Jan 2018, Volume 146 Nº 1 Páginas 96 - 106

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

There has been a progressive increase in the use of mechanical circulatory support in our country in the last years, mainly in the short-term: as a bridge to cardiac transplant or recovery, which has allowed to rescue patients from a population that concentrates high rates of complications and mortality. This motivated that the Ministry of Health convened a series of experts in the area of heart failure, transplantation and mechanical circulatory support, representatives of different public and private health centers in Chile, with the objective of developing recommendations on the use of short-term mechanical assistance devices, which would serve as a reference for the proper management of these patients. This clinical experts consensus document contains topics related to: definitions and general concepts; indications; contraindications; specific aspects of starting, follow-up and weaning of the devices; process of transfer of patients in circulatory assistance from one center to another and finally criteria of organization, means and competences to be fulfilled by the centers that offer this therapeutic option.

https://doi.org/10.4067/s0034-98872018000100096 2464 downloads

15.

Dosis de N sobre reflectancia espectral, contenido de clorofila y nutrientes en plantas de gerbera
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Lorenzo, Gabriel A

; Mascarini, Libertad

; Gonzalez, Mariel N

Horticultura Brasileira

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Abr 2017, Volume 35 Nº 2 Páginas 278 - 285

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

ABSTRACT In soilless crop, nutritional management must ensure the concentration and balance of nutrients, in order to obtain high productivity and quality, while fine adjustment of fertilization contributes to reduce environmental impact. Under the assumption that (1) an optimum level of N can be determined for gerbera, which provides the maximum potential productivity, (2) that the N level can be detected through a nondestructive technique, such as crop reflectance, and (3) that variations occur according to season, the objectives of this study were 1) to determine the effect of different doses of N on soilless-grown gerbera, 2) to detect patterns of spectral reflectance which could predict nutritional deficiencies, and 3) to detect variations of response to N dose in different season. In a soilless gerbera cv "Sunway" cut flower crop, three doses of N were tested, and flower production, spectral reflectance, leaf area, nutrient and chlorophyll content in leaf were recorded. The annual production did not differ significantly (110-113 flowers/m2/yr), however differences in specific moments in relation to N dose were found, showing better results for the highest dose in spring (22 vs. 12 flowers/m2/months), but the medium dose showed better response in the autumn (12 vs. 5 flowers/m2/months), while no difference occurred in winter or such differences were not quantitatively important (2 flowers/m2/months). Linear models that were constructed from the spectral reflectance allowed us to estimate the chlorophyll content, nitrogen and leaf area index (LAI) in a nondestructive way. The LAI could serve as an index for the nutritional management, looking to keep about 3, 4 and 2 m2leaf/m2ground in autumn, winter and spring, respectively.

RESUMEN En cultivo sin suelo el manejo nutricional debe asegurar la concentración y el balance de los nutrientes, en orden a obtener alta productividad y calidad, a la vez que un ajuste fino de la fertilización contribuira a reducir el impacto ambiental. Bajo la hipótesis de que hay para gerbera un nivel de N óptimo que permitirá expresar su máxima productividad potencial, y que a la vez podrá detectarse a través de una técnica no destructiva como la reflectancia del cultivo, así como también si hay variaciones de acuerdo con el momento del año, los objetivos de este trabajo fueron: 1) determinar el efecto de diferentes dosis de N sobre un cultivo sin suelo de gerbera, 2) detectar patrones de reflectancia espectral que permitan predecir deficiencias nutritivas, y 3) observar si en diferentes momentos del año hay variaciones de la respuesta a las dosis de N. En un cultivo sin suelo de gerbera cv “Sunway” para flor cortada, se ensayaron tres dosis de N, y se registró producción de flores, reflectancia espectral, área foliar y contenido de clorofila y nutrientes en hoja. La producción anual no se diferenció significativamente (110-113 flores/m2/año), sin embargo se encontraron diferencias en momentos puntuales en relación con la dosis de N, observándose mejores resultados de la dosis más alta en primavera (22 vs. 12 flores/m2/mes), pero la dosis media mostró mejor respuesta en otoño (12 vs. 5 flores/m2/mes), mientras que en época invernal no hubo diferencias o bien estas no fueron cuantitativamente importantes (2 flores/m2/mes). A partir de la reflectancia se construyeron modelos que permitieron estimar el contenido de clorofila, de nitrógeno y el índice de área foliar (IAF) en forma no destructiva. El IAF podría servir como índice para el manejo nutricional, buscando mantener un IAF del orden de 3, 4 y 2 m2 hoja/m2 suelo en otoño, invierno y primavera respectivamente.

https://doi.org/10.1590/s0102-053620170220 1635 downloads

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