Enfoque UTE : revista cientifica最新文献_第3页

Technology Acceptance Model of ERP software in Small Business: A Systematic Literature review 小型企业ERP软件的技术接受模型:系统文献综述

Enfoque UTE : revista cientifica Pub Date : 2022-11-02 DOI: 10.29019/enfoqueute.884

Esteban Crespo, Catalina Astudillo-Rodríguez, Gabriela Chica-Contreras, Ana Vásquez-Aguilera

引用次数: 1

Seed viability, germination and seedling quality patterns of three forest species for restoration in Amazonian conditions 亚马逊条件下三种森林物种恢复的种子活力、发芽和幼苗质量模式

Enfoque UTE : revista cientifica Pub Date : 2022-10-27 DOI: 10.29019/enfoqueute.890

Yudel García Quintana, Yasiel Arteaga Crespo, M. De Decker, María del Carmen Castelo

{"title":"Seed viability, germination and seedling quality patterns of three forest species for restoration in Amazonian conditions","authors":"Yudel García Quintana, Yasiel Arteaga Crespo, M. De Decker, María del Carmen Castelo","doi":"10.29019/enfoqueute.890","DOIUrl":"https://doi.org/10.29019/enfoqueute.890","url":null,"abstract":"The aim of this study was to evaluate the quality patterns of Switenia macrophylla, Cedrelinga cateniformis and Ochroma pyramidale seeds and seedlings in response to restoration. The seed viability test was performed using 1 % tetrazolium (2,3,5-triphenyl tetrazolium chloride) during three staining times and the percentage of viability and vigor levels were considered according to the topological staining pattern. Germination speed, germination capacity, and morphological indices of plant quality were determined using the aboveground belowground ratio, slenderness, degree of lignification and Dickson's quality. The highest percentage of viable seeds with the maximum staining time (3 hours) was verified. The medium vigor category was higher in the three species, as determined by a partial reddish staining pattern as an expression of their physiological quality, which was reflected in the response to germination. The morphological quality indices allowed us to identify the species’ potential for growth and development for acclimatization to the area. The correspondence analysis was significant (p≤0.05), which facilitated the formation of quality groups, C. cateniformis was found to be of a high-enough quality as an indicator of its potential to cover restoration needs in Amazonian conditions.","PeriodicalId":72918,"journal":{"name":"Enfoque UTE : revista cientifica","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80994453","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

Variabilidad climática en la cuenca hidrográfica del río Chalpi Grande en Napo-Ecuador 厄瓜多尔纳波查尔皮格兰德河流域的气候变化

Enfoque UTE : revista cientifica Pub Date : 2022-10-19 DOI: 10.29019/enfoqueute.872

Christian Andrés García Rengifo, Sixto Durán-Ballén Ochoa

引用次数: 0

Secado de hojas de muña (minthostachys mollis): Modelado, cinética y propiedades termodinámicas 木瓜叶干燥(minthostachys mollis):建模、动力学和热力学性质

Enfoque UTE : revista cientifica Pub Date : 2022-09-05 DOI: 10.29019/enfoqueute.827

R. J. Silva Paz, Dante K. Mateo Mendoza, Amparo Eccoña Sota, Patricia A. Della Rocca

{"title":"Secado de hojas de muña (minthostachys mollis): Modelado, cinética y propiedades termodinámicas","authors":"R. J. Silva Paz, Dante K. Mateo Mendoza, Amparo Eccoña Sota, Patricia A. Della Rocca","doi":"10.29019/enfoqueute.827","DOIUrl":"https://doi.org/10.29019/enfoqueute.827","url":null,"abstract":"La hoja de muña se utiliza como infusión, posee propiedades farmacológicas y se usa para aliviar los síntomas digestivos y respiratorios. Por lo que, el secado es importante para la conservación y almacenamiento hasta su uso o procesamiento. El objetivo de esta investigación fue evaluar la influencia de la temperatura de secado sobre la cinética, coeficiente de difusión y las propiedades termodinámicas. Se trabajó con hojas de muña sometidos a diferentes pretratamientos (blanqueado a 1% de ácido ascórbico, inmersión en agua a 60 °C y sin pre tratamiento) secados a tres temperaturas (40, 50 y 60 °C). Se determinó el coeficiente de difusión efectiva, energía de activación y se describió el proceso de secado mediante ocho modelos matemáticos para representar la curva de secado. El modelo Logarítmico fue seleccionado como el de mayor ajuste para representar la cinética de secado de la muña. Los valores de energía de activación fueron similares entre los tratamientos. El aumento de la temperatura promueve: disminución de la entalpía y la entropía; aumento de la energía libre de Gibbs y coeficiente de difusión efectivo. Por lo tanto, es fundamental reducir el contenido de agua mediante el secado para mantener la calidad de las hojas de muña.","PeriodicalId":72918,"journal":{"name":"Enfoque UTE : revista cientifica","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74373470","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

Characterization of the content of anions and metals of potatoes, tomatoes and onions marketed in Cuenca, Ecuador to obtain a classification model 对厄瓜多尔昆卡市销售的土豆、西红柿和洋葱的阴离子和金属含量进行表征，获得分类模型

Enfoque UTE : revista cientifica Pub Date : 2022-08-31 DOI: 10.29019/enfoqueute.866

Verónica Pinos, Astrid Alvarez-Blacio, Claudia Alvitres-Medina, Cynthia Castro, Josselyn Verdugo, Andrés Pérez-González, María Dolores Tonón, Piercossimo Tripaldi

{"title":"Characterization of the content of anions and metals of potatoes, tomatoes and onions marketed in Cuenca, Ecuador to obtain a classification model","authors":"Verónica Pinos, Astrid Alvarez-Blacio, Claudia Alvitres-Medina, Cynthia Castro, Josselyn Verdugo, Andrés Pérez-González, María Dolores Tonón, Piercossimo Tripaldi","doi":"10.29019/enfoqueute.866","DOIUrl":"https://doi.org/10.29019/enfoqueute.866","url":null,"abstract":"Due to the accelerated growth of the population, the need for food has increased, this added to the differentiated climatic factors that Ecuador has, causes users to use pesticides and fertilizers in an alarming way, in search of increasing the productivity of crops, exploit an accumulation of residues in food and soil. In this study, the concentrations of metals and ions from fertilizers in four high-consumption products will be limited: INIAP Cecilia and Chaucha Amarilla potatoes, Kidney Tomato and Paiteña Onion found in markets and supermarkets. The metals were determined by inductively coupled plasma spectrometry with mass spectrometer (ICP-MS) and the ions through a UV-visible spectrophotometer. The values found were within the norm. Differences were found between the metal content of the potato between peel and pulp where the latter will appear the highest concentrations. Multivariate statistics showed that the samples are grouped by the planting site and not the type of sample, which shows the importance of the soil and the cultivation process. The generation of a classification model for fed products with the analyzed parameters is discussed.","PeriodicalId":72918,"journal":{"name":"Enfoque UTE : revista cientifica","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83460252","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

Susceptibility of six insecticides in brown planthopper, Nilaparvata lugens (Hemiptera: Delphacidae) in Kallar tract of Punjab, Pakistan; 2015-2019 巴基斯坦旁遮普省Kallar地区褐飞虱(半翅目:褐飞虱科)6种杀虫剂的敏感性2015 - 2019

Enfoque UTE : revista cientifica Pub Date : 2022-08-05 DOI: 10.29019/enfoqueute.867

Muhammad Rizwan, Muhammad Afzal, Muhammad Arshad, M. Rizwan, Noshaba Mubeen, Abu Bakar Muhammad Raza, B. Atta, Arshed Makhdoom Sabir

{"title":"Susceptibility of six insecticides in brown planthopper, Nilaparvata lugens (Hemiptera: Delphacidae) in Kallar tract of Punjab, Pakistan; 2015-2019","authors":"Muhammad Rizwan, Muhammad Afzal, Muhammad Arshad, M. Rizwan, Noshaba Mubeen, Abu Bakar Muhammad Raza, B. Atta, Arshed Makhdoom Sabir","doi":"10.29019/enfoqueute.867","DOIUrl":"https://doi.org/10.29019/enfoqueute.867","url":null,"abstract":"Brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) is an economically important insect pest of rice crop worldwide including Pakistan. The use of chemicals insecticides to control the BPH population has been considered an effective strategy. However, long-term and intensive use of insecticides has resulted in resistance against this pest. In this study, six recommended insecticides were tested against BPH over the period of 2015-2019 to determine the susceptibility level. From 2015-19, susceptibility of BPH was reduced to all tested insecticides. Increasing trend of LC50 values was recorded in fipronil (18.23-35.11 mg/L), imidacloprid (64.22-128.8 mg/L), buprofezin (185.01-315.0 mg/L), chlorantranilipyrole (199.2-263.3 mg/L), pymetrozine (248.2-315.5 mg/L), and nitenpyram (21.07-34.3 mg/L) respectively from 2015 to 2019. Correlation coefficient values indicated a significant relation (P < 0.05) between fipronil, imidacloprid, and buprofezin. The study will be helpful for resistance management strategies to prevent the resistance development in BPH against insecticides.","PeriodicalId":72918,"journal":{"name":"Enfoque UTE : revista cientifica","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79551369","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

Evaluación de la calidad del suelo en núcleos poblados cercanos a la zona minera aurífera de Ponce Enríquez 庞塞enriquez金矿矿区附近居民点土壤质量评价

Enfoque UTE : revista cientifica Pub Date : 2022-08-01 DOI: 10.29019/enfoqueute.811

Daniela Paz-Barzola, K. Escobar-Segovia, Samantha Jiménez Oyola

{"title":"Evaluación de la calidad del suelo en núcleos poblados cercanos a la zona minera aurífera de Ponce Enríquez","authors":"Daniela Paz-Barzola, K. Escobar-Segovia, Samantha Jiménez Oyola","doi":"10.29019/enfoqueute.811","DOIUrl":"https://doi.org/10.29019/enfoqueute.811","url":null,"abstract":"El objetivo para llevar a cabo este estudio fue evaluar la calidad del suelo en los núcleos poblados cercanos a las áreas de explotación minera aurífera en el cantón Camilo Ponce Enríquez. Se analizó la concentración de metales pesados y metaloides (As, Cd, Cu, Cr, Ni, Pb, y Zn) en muestras del suelo recolectadas en áreas públicas, patios, jardines y zonas de cultivo.\u0000Como resultado, se identificó que la concentración de Ni y Cr superó el límite máximo permitido (LMP) establecido en el Texto Unificado de la Legislación Secundaria Medio Ambiental del Ecuador (TULSMA) en el 100 % de las muestras analizadas, mientras que la concentración de Cu y Zn fue superior al LMP en el 90 % de los sitios de los cuales se tomó la muestra. El Cd superó el LMP en 64 % de las muestras y el As y el Pb superaron el LMP en el 26 % y 21 % de las muestras, respectivamente.\u0000El Cd, As y Pb son elementos de especial preocupación debido a su elevada toxicidad y considerable presencia en la zona de estudio. En cuanto al análisis de pH, se obtuvo valores entre 3.31 y 8.21, lo cual indica condiciones ácidas en el 60 % de las muestras de suelo, posiblemente producto de la actividad antropogénica en el área. Se detectaron fuertes correlaciones positivas entre As-Cd, Cr-Ni, Cu-Ni y correlaciones moderadas entre Cr-Cu y Pb-Zn, lo que guarda relación con la mineralización del área. El análisis de conglomerados indicó que el clúster C1, caracterizado por un alto contenido de elementos potencialmente tóxicos, se encuentra mayoritariamente al sur del área de estudio. Estos resultados preliminares pueden servir como línea base para futuras investigaciones en la zona, pues remarcan la importancia de la evaluación en la calidad de los suelos en núcleos poblados en áreas mineras.","PeriodicalId":72918,"journal":{"name":"Enfoque UTE : revista cientifica","volume":"93 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84210395","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

Sitios de disposición final de residuos sólidos abandonados en la Región de Sotavento del estado de Veracruz, México, utilizando herramientas SIG 墨西哥韦拉克鲁斯州Sotavento地区废弃固体废物的最终处置地点，使用gis工具

Enfoque UTE : revista cientifica Pub Date : 2022-07-19 DOI: 10.29019/enfoqueute.853

Manuel Alberto Susunaga-Miranda, Benigno Ortíz Muñiz, María del Refugio Castañeda Chávez, Fabiola Lango Reynoso, María del Consuelo Hernández Berriel

{"title":"Sitios de disposición final de residuos sólidos abandonados en la Región de Sotavento del estado de Veracruz, México, utilizando herramientas SIG","authors":"Manuel Alberto Susunaga-Miranda, Benigno Ortíz Muñiz, María del Refugio Castañeda Chávez, Fabiola Lango Reynoso, María del Consuelo Hernández Berriel","doi":"10.29019/enfoqueute.853","DOIUrl":"https://doi.org/10.29019/enfoqueute.853","url":null,"abstract":"En México, cuando los sitios de disposición final de residuos sólidos urbanos son clausurados o cumplen su ciclo de vida, las autoridades municipales los abandonan sin llevar a cabo procesos de remediación. En la Región de Sotavento, estado de Veracruz, México, por medio de los sistemas de información geográfica, entrevistas a los ayuntamientos y visitas de campo, se localizaron 9 basureros abandonados: dos rellenos sanitarios, dos sitios de disposición final controlados denominados tiraderos controlados, y cinco sitios de disposición final no controlados conocidos como tiraderos a cielo abierto. Los resultados utilizando Google Earth, permitieron determinar que estos basureros, en su conjunto, ocupaban un área de 366,852 m2, con un volumen de residuos acumulados de 2,015,500m3 y una cantidad estimada de 2,498,571 toneladas de desechos confinados sin control. Tales resultados representan una serie de impactos ambientales que comúnmente no son detectados y cuyo conocimiento puede ser el punto de partida para su clausura de conformidad con la normativa mexicana aplicable.","PeriodicalId":72918,"journal":{"name":"Enfoque UTE : revista cientifica","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85541402","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

Tithonia Chemical composition of the foliage meal of Tithonia diversifolia 山楂叶粉的化学成分

Enfoque UTE : revista cientifica Pub Date : 2022-07-19 DOI: 10.29019/enfoqueute.856

Dani Verdecia-Acosta, Carlos Olmo-González, L. Hernández-Montiel, Alcibiades Ojeda-Rodríguez, J. L. Ramírez-de la Ribera, Yordan Martínez-Aguilar

{"title":"Tithonia Chemical composition of the foliage meal of Tithonia diversifolia","authors":"Dani Verdecia-Acosta, Carlos Olmo-González, L. Hernández-Montiel, Alcibiades Ojeda-Rodríguez, J. L. Ramírez-de la Ribera, Yordan Martínez-Aguilar","doi":"10.29019/enfoqueute.856","DOIUrl":"https://doi.org/10.29019/enfoqueute.856","url":null,"abstract":"With the objective of determining the nutritional constituents, amino acids and the content of secondary metabolites of the foliage meal of Tithonia diversifolia. For this, plant material was collected 70 days after regrowth. The percentages of DM, CP, P, Ca, Si, CF, NDF, ADF, ADL, Cel, Hcel, CC were determined; amino acid profile (methionine, cystine, methionine + cystine, lysine, threonine, aspartic acid, glutamic acid, proline, glycine, alanine, valine, isoleucine, leucine, serine, phenylalanine, arginine, histidine), and content of TT, TP, TCT, TBCT, FCT, Flv, Sap, Alk, Trit and TS. For statistical processing, descriptive techniques (mean and standard deviation) were used. The plant material of Tithonia diversifolia analyzed showed percentages of 22.23, 2.62, 0.013, 45.7, and 29.8% and 6.09 MJ/kg (CP, Ca, P, NDF, ADF and ME). For the secondary metabolites, they presented concentrations of 5.35, 12.38, 13.7, 9.58, 4.15, 24.49, 0.86, 1.36, 7.71 and 10.75 g/kg MS for total tannins, total phenols, total condensed tannins, total bound condensed tannins, free condensed tannins, flavonoids, alkaloids, saponins, triterpenes and total steroids). The highest concentrations of amino acids were for lysine, aspartic acid, glutamic acid, proline, glycine, alanine, valine, leucine, serine and phenylalanine with values of 13-30 g/kg of protein. It is concluded that the foliage meal of Tithonia diversifolia presents an adequate relation in its quality.","PeriodicalId":72918,"journal":{"name":"Enfoque UTE : revista cientifica","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87468745","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

Datos abiertos y gobierno abierto en los gobiernos regionales y locales del Perú 秘鲁地区和地方政府的开放数据和开放政府

Enfoque UTE : revista cientifica Pub Date : 2022-05-20 DOI: 10.29019/enfoqueute.838

Cristian García-Estrella, John C. Santa-María, Mirleth Reina Celis Hernandez

引用次数: 1