Revista de Ciencia y Tecnología最新文献_第10页

Evaluation of resources in the study of industrial and culinary properties for the varietal characterization of rice (Oryza sativa L.) 水稻(Oryza sativa L.)品种鉴定中工业和烹饪特性研究中的资源评价

Revista de Ciencia y Tecnología Pub Date : 2021-12-01 DOI: 10.36995/j.recyt.2021.36.003

Andrea P. Farco, José Daniel Bouchard, Sergio Fernando Díaz, R. Kruger, M. Maiocchi

{"title":"Evaluation of resources in the study of industrial and culinary properties for the varietal characterization of rice (Oryza sativa L.)","authors":"Andrea P. Farco, José Daniel Bouchard, Sergio Fernando Díaz, R. Kruger, M. Maiocchi","doi":"10.36995/j.recyt.2021.36.003","DOIUrl":"https://doi.org/10.36995/j.recyt.2021.36.003","url":null,"abstract":"Different physicochemical tests have been used over time in the Oryza sativa species for the study of industrial and culinary properties. In this study, nine attributes were compared: amylose content, total whiteness, thousand grain weight, grain length and width, gelatinization time, apparent water absorption, expansion ratio, and gelatinization temperature. However, there is no single attribute that allows defining the concept of “culinary quality” in rice, since it depends on its behavior after cooking. The two varieties of long fine polished rice used for this study were: IRGA 424 (Rio Grandense Rice Institute) and Tranquilo FL INTA (National Institute of Agricultural Technology) and a mixture of both.\u0000In this work, the characterization of industrial and culinary properties of the rice varieties mentioned above was achieved by evaluating five attributes using simple and low-cost physical-chemical techniques in two of the rice varieties most in demand by producers in the province of Corrientes. This finding would allow the study of rice varieties to be approached by optimizing: equipment, reagents and time in future trials.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89214878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Human factors, artificial intelligence and autonomous cars: Perspectives for a complex implementation 人为因素、人工智能和自动驾驶汽车:复杂实施的视角

Revista de Ciencia y Tecnología Pub Date : 2021-12-01 DOI: 10.36995/j.recyt.2021.36.008

S. Pereira, R. Botelho

引用次数: 0

Evaluation of phenotypic methods for the detection of carbapenemases applicable to low complexity laboratories 适用于低复杂度实验室的碳青霉烯酶表型检测方法的评价

Revista de Ciencia y Tecnología Pub Date : 2021-12-01 DOI: 10.36995/j.recyt.2021.36.002

Florencia A. Angelini, E. Pegels, M. Quiroga

引用次数: 0

Kinetics of aqueous extraction of phenolic compounds from processed yerba mate leaves 马黛茶叶中酚类化合物的水萃取动力学

Revista de Ciencia y Tecnología Pub Date : 2021-12-01 DOI: 10.36995/j.recyt.2021.36.004

G. G. López, M. Brousse, M. L. Vergara, A. M. Gonzalez, Nancy E. Cruz, R. A. Linares

{"title":"Kinetics of aqueous extraction of phenolic compounds from processed yerba mate leaves","authors":"G. G. López, M. Brousse, M. L. Vergara, A. M. Gonzalez, Nancy E. Cruz, R. A. Linares","doi":"10.36995/j.recyt.2021.36.004","DOIUrl":"https://doi.org/10.36995/j.recyt.2021.36.004","url":null,"abstract":"In this study, the kinetics of aqueous extraction of phenolic compounds from the yerba mate leaves were analyzed. A temperature range between 40°C and 70°C and a ratio of 25 g of mate leaves in 200 mL of water were used. The extraction kinetic was studied adjustment of the kinetics models of first order, second order kinetic model and the second order diffusive model. The goodness of the fit was controlled by the magnitude of the coefficient of determination (R2), the percentage error (EP %) and the square root of the mean square error (RMSE).The second order kinetic models adequately described the extraction process, achieving the best fit with the second order diffusive model (EP%= 0,81 to 2,9; EP%= 11,24 to 14,99 and 4,72 and 6,92) that provided important information about the initial extraction process and the mechanism that occurs in the final extraction stage. The temperature influenced the kinetic parameters; however, the final equilibrium concentration of phenolic compounds was not affected by it.\u0000The results of this study allow us to obtain better overall knowledge of the times and temperatures for improved extraction rates and energy consumption for the industrialization of these compounds.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83004430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Urban collective housing: safety and hygiene on site. Contributions for the management of excavations, submurations and demolitions 城市集体住房:现场安全卫生。对挖掘、分拆和拆除的管理作出贡献

Revista de Ciencia y Tecnología Pub Date : 2021-12-01 DOI: 10.36995/j.recyt.2021.36.005

Rodolfo Bellot, Diego Fiscarelli

{"title":"Urban collective housing: safety and hygiene on site. Contributions for the management of excavations, submurations and demolitions","authors":"Rodolfo Bellot, Diego Fiscarelli","doi":"10.36995/j.recyt.2021.36.005","DOIUrl":"https://doi.org/10.36995/j.recyt.2021.36.005","url":null,"abstract":"In Argentina, public policies related to Safety and Hygiene started at the beginning of the 20th century, and it was not until the 1970s that the first regulations related to the subject were passed, when the current Law Nº 19587 on \"Safety and Hygiene at Work\" was sanctioned. In particular, the construction industry, since 1996, has had a complementary regulatory framework with Decree Nº 911. On the other hand, the demolition, excavation and submurder stages found an intervention mechanism with SRT Resolutions Nº 550/11 and SRT Nº 503/14. However, the regulatory framework does not provide specificity in relation to procedures and consequently does not guarantee efficiency/effectiveness in operational terms. This work exposes a gap, which, from a particular methodological approach, concludes with the obtaining of results, as it verifies the levels of compliance of the actions in the traceability of the work, aimed at framing the demolition, excavation and submuration tasks according to regulatory parameters of Health and Safety established by the instrument of analysis / matrix. As part of the final considerations, this work proposes to contribute with management guidelines for the aforementioned tasks in urban collective housing works.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"64 2 Pt 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85509060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tecnología aeroespacial, un avance vertiginoso global, sus aplicaciones y problemas en las Ciencias Agrícolas 航空航天技术，一个令人眼花缭乱的全球进步，它在农业科学中的应用和问题

Revista de Ciencia y Tecnología Pub Date : 2021-06-30 DOI: 10.18779/cyt.v14i1.449

Danilo Yánez-Cajo, Diana Veliz Zamora, Camilo Mestanza Uquillas, Germán Jácome López, E. Sánchez Rodríguez, María José Prados Velasco

{"title":"Tecnología aeroespacial, un avance vertiginoso global, sus aplicaciones y problemas en las Ciencias Agrícolas","authors":"Danilo Yánez-Cajo, Diana Veliz Zamora, Camilo Mestanza Uquillas, Germán Jácome López, E. Sánchez Rodríguez, María José Prados Velasco","doi":"10.18779/cyt.v14i1.449","DOIUrl":"https://doi.org/10.18779/cyt.v14i1.449","url":null,"abstract":"La tecnología aeroespacial en estos últimos diez años ha venido desarrollándose vertiginosamente, sus aplicaciones se encuentran en la mayoría de las líneas del conocimiento. Puntualmente en las ciencias agrícolas su uso ha aumentado debido a dos grades factores. El primero es el apoyo para generar soluciones a muchos de los problemas de optimización y rendimiento de los cultivos, dentro de una era de crecimiento poblacional exponencial, que ha aumentado las necesidades de mejorar el rendimiento del alimento en base a tecnologías, en un mundo globalizado cuya reproducción social se basa a la acumulación de capitales. El segundo punto es el desarrollo de la ingeniería electrónica, mecánica y la física, que, en base a las necesidades sociales y agrícolas mencionadas, está innovando y desarrollando tecnología aeroespacial que brinde soluciones a estos problemas. En este contexto, sacamos a relucir los beneficios de la tecnología aeroespacial en las ciencias agrícolas, citando estudios de diversos autores que han aplicado esta tecnología, pero a la vez también trataremos las consecuencias negativas indirectas que puede ocasionar su uso en el proceso agrícola, en espacial en el reemplazo del trabajo y mano de obra humana, además de la limitación de acceso de esta tecnología a los pequeños grupos agrícolas, y su futuro en el mundo globalizado","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"2015 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87004381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Características físicas y químicas del pescado ratón silvestre (Leporinus ecuadorensis) en la zona sur de la provincia de Los Ríos. 本文的目的是描述在墨西哥南部和墨西哥北部的热带雨林中发现的物种。

Revista de Ciencia y Tecnología Pub Date : 2021-06-30 DOI: 10.18779/cyt.v14i1.461

Josselin Lisseth Triviño Bravo, Félix Vicente Herrera Mena, Jacinto Alex Roca Cedeño, Carlos Alfredo Rivera Legton, Willian Oswaldo Sornoza Zambrano, Roberto Carlos Pincay Jiménez

{"title":"Características físicas y químicas del pescado ratón silvestre (Leporinus ecuadorensis) en la zona sur de la provincia de Los Ríos.","authors":"Josselin Lisseth Triviño Bravo, Félix Vicente Herrera Mena, Jacinto Alex Roca Cedeño, Carlos Alfredo Rivera Legton, Willian Oswaldo Sornoza Zambrano, Roberto Carlos Pincay Jiménez","doi":"10.18779/cyt.v14i1.461","DOIUrl":"https://doi.org/10.18779/cyt.v14i1.461","url":null,"abstract":"Con el propósito de estudiar las características físicas y químicas del ratón silvestre (Leporinus ecuadorensis) y proporcionar una base de datos con información de este pez que habita en el río Babahoyo, se realizó este trabajo en el Rio Babahoyo, donde fueron capturados 250 especímenes de Leporinus e., los cuales tuvieron un rango de peso de 75-175 g, estos fueron transportados a la planta de cárnicos del Campus “La María” de la Universidad Técnica Estatal de Quevedo donde se realizaron los análisis físicos (Colorimetría R G B, perdidas por cocción y goteo, pH), para los análisis de composición química y mineral de la carne se llevaron muestras de la misma al Laboratorio de Química de la Universidad Tecnológica Equinoccial Sede Santo Domingo a lo que se aplicó una estadística descriptiva. La carne de Leporinus e. presento un contenido de proteína de 22.08% y bajo contenido de grasa 4.68% por lo que se considera que estos peces se encuentran dentro del grupo de especies de grasa media. Por los resultados de los análisis físicos realizados es una carne azulada y presenta bajas pérdidas de agua por goteo y cocción (4.69 y 19.95% respectivamente) en comparación con otras especies","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78804669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Evaluación agronómica y valor nutricional de la Morera (Morus alba) 桑树(Morus alba)的农艺评价和营养价值

Revista de Ciencia y Tecnología Pub Date : 2021-06-30 DOI: 10.18779/cyt.v14i1.447

David Aurelio Zapatier Santillan, Carlos Javier Meza Bone, J. H. Avellaneda Cevallos, Melanie Tahis Meza Castro, Walter Fernando Vivas Arturo, Gary Alex Meza Bone

{"title":"Evaluación agronómica y valor nutricional de la Morera (Morus alba)","authors":"David Aurelio Zapatier Santillan, Carlos Javier Meza Bone, J. H. Avellaneda Cevallos, Melanie Tahis Meza Castro, Walter Fernando Vivas Arturo, Gary Alex Meza Bone","doi":"10.18779/cyt.v14i1.447","DOIUrl":"https://doi.org/10.18779/cyt.v14i1.447","url":null,"abstract":"Se evaluó el comportamiento agronómico y el valor nutricional de la Morus alba, a diferentes edades. Las variables para el comportamiento agronómico: altura de planta (AP) (m); biomasa de hojas por planta (BHP g MS planta-1); biomasa de tallos por planta (BTP g MS planta-1); relación hoja/tallo gramos (RH/T g); biomasa forrajera por planta (BFP) (g); productividad (Prod) (t MS ha-1). La composición química: materia seca (MS); materia orgánica (MO); proteína cruda (PC); fibra detergente neutra (FDN) y fibra detergente ácida (FDA). La digestibilidad in vitro: materia seca (DIVMS); materia orgánica (DIVMO); fibra detergente neutra (DIVFDN) y fibra detergente ácida (DIVFDA). Los tratamientos: T1: Morus alba 40 días de cosecha; T2: Morus alba 55 días de cosecha; T3: Morus alba 70 días de cosecha; T4: Morus alba 85 días de cosecha. Se utilizó un diseño (DCA) con cuatro tratamientos y cuatro repeticiones. La mayor (P<0.05) AP y BHP lo presentaron el T3 y T4 (1.50 y 1.67 m) y (179.68 y 169.44 g MS planta-1), la BFP y la Productividad lo registraron el T4 y T3 (433.36 y 369.37 g MS planta-1) y (7.68 y 6.55 t MS ha-1), la BTP lo registró el T4 (263.92 g MS planta-1), la RHT lo reportó el T2 (1.17 g). La mayor (P<0.05) MS y PC registraron el T4 y T1 (33.81 y 22.17%). La DIVMS, DIVMO, DIVFDN y DIVFDA (P<0.05) lo registró el T1 (68.07; 65.75; 62.98 y 44.91%). La edad de cosecha influye en el comportamiento agronómico y su valor nutricional.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84042505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Eficiencias en el sistema de riego Tumbaco, Ecuador 厄瓜多尔Tumbaco灌溉系统的效率

Revista de Ciencia y Tecnología Pub Date : 2021-06-30 DOI: 10.18779/cyt.v14i1.443

Randon Stalin Ortíz Calle, Jaime Pazmiño Mayorga, Maritza Chile Asimbaya

引用次数: 0

Determinantes socioeconómicos de la agrodiversidad y el monocultivo en la provincia de Esmeraldas 埃斯梅拉达斯省农业多样性和单一栽培的社会经济决定因素

Revista de Ciencia y Tecnología Pub Date : 2021-06-30 DOI: 10.18779/cyt.v14i1.457

C. Vasco, V. Tafur, Rodrigo Valdiviezo, H. Hernandez, Lourdes Caisaguano

引用次数: 0