Nexo Revista Científica最新文献_第9页

Towards a Sustainable Agriculture Development Based on the Field Vulnerability Evaluation in Miandoab Region, Iran 基于田间脆弱性评价的伊朗Miandoab地区农业可持续发展

Nexo Revista Científica Pub Date : 2022-12-31 DOI: 10.5377/nexo.v35i04.15533

Maryam Vaziri, S. Mahmoudi, F. Shahbazi, M. Masihabadi, H. Rezaei

{"title":"Towards a Sustainable Agriculture Development Based on the Field Vulnerability Evaluation in Miandoab Region, Iran","authors":"Maryam Vaziri, S. Mahmoudi, F. Shahbazi, M. Masihabadi, H. Rezaei","doi":"10.5377/nexo.v35i04.15533","DOIUrl":"https://doi.org/10.5377/nexo.v35i04.15533","url":null,"abstract":"Exploring the agro-ecological limits is necessary in sustainable agriculture development. Soil contamination and erosion are two main indices in land vulnerability evaluation. Raizal and Pantanal models within MicroLEIS DSS, the Ero&Con package, were established in identification of vulnerable areas due to erosion and contamination risks, respectively. This study was performed in Miandoab region under different land-use scenarios with approximately 5269 ha extension in the North-West of Iran (west Azarbaijan). The extracted morphological and analytical data from 62 soil profiles representative of the study area were used as basic information. A total of 17 land unites were then classified according to the Geopedologic approach. The benchmark soil profiles were categorized as Typic Torripsamments, Typic Haploxerepts, Typic Haplocambids and Typic Haplargids. The results taken by using the aforementioned models were presented as an attainable mode whereas the management practices were not mentioned. The application of Raizal model revealed that the water erosion has less impact than wind erosion on vulnerability classes whereas climate change will result extremely high vulnerable area in the future. In terms of soil contamination risks resulted by Pantanal model, phosphorous risks were classified in V2 (23%) and V4 (77%). Also, heavy metal and nitrogen as well as pesticide contamination vulnerability risks were classified as V3 and V4. Since there was no different in classes when cultivating maize and wheat, the attainable vulnerability classes are equal with the actual ones. Overall, this research demonstrates that application of models increase our understanding about the behavior of soil and landscape interactions.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123712394","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

The Main Modern Trends in the Economy and Society in the Development of Tourism 现代旅游发展中经济社会的主要趋势

Nexo Revista Científica Pub Date : 2022-12-31 DOI: 10.5377/nexo.v35i04.15541

O. Slinkova, Tatyana Klimovа, E. Vishnevskaya, I. Bogomazova, Anna V. Rogova

{"title":"The Main Modern Trends in the Economy and Society in the Development of Tourism","authors":"O. Slinkova, Tatyana Klimovа, E. Vishnevskaya, I. Bogomazova, Anna V. Rogova","doi":"10.5377/nexo.v35i04.15541","DOIUrl":"https://doi.org/10.5377/nexo.v35i04.15541","url":null,"abstract":"Research aimed to reveal the character of the links between main modern trends in the economy and society and the development of tourism as one of the sectors of the Russian economy, on the one hand, and the type of human activity, on the other. In order to realize this goal, the main trends of the modern Russian economy were identified: economic crisis caused by pandemic coronavirus; rapidly developing digitalization of economy; the growing influence of ecological component on economic development and the increasing role of customer orientation in providing competitive positions of business. The study of trends in tourism, based on the use of methods of statistical analysis, confirmed the hypothesis that tourism is the sphere in which they are most clearly manifested. In particular, it concerns the following regularities: tourism as a branch of the Russian economy has suffered the most because of the economic crisis caused by pandemic coronavirus; tourism is the sector of the economy in which digitalization penetrates most actively; natural resources of Russia create boundless possibilities for ecological tourism development; client-oriented approach in tourism is not a declared principle, but a real business philosophy in modern conditions; increasing demands of Russian tourists for safe.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"513 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116537727","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

Metodología para análisis de factores que inciden en la calidad educativa, Universidad Nacional de Ingeniería 影响教育质量因素分析方法，国立工程大学

Nexo Revista Científica Pub Date : 2022-12-31 DOI: 10.5377/nexo.v35i04.15530

Julio C. Oporta Barrera, Róger B. Elvir Miranda

{"title":"Metodología para análisis de factores que inciden en la calidad educativa, Universidad Nacional de Ingeniería","authors":"Julio C. Oporta Barrera, Róger B. Elvir Miranda","doi":"10.5377/nexo.v35i04.15530","DOIUrl":"https://doi.org/10.5377/nexo.v35i04.15530","url":null,"abstract":"Las nuevas tendencias educativas implican un cambio en el rol del profesor universitario que contribuya en la mejora de su saber científico, investigativo e innovador, aplicándose en el proceso enseñanza y aprendizaje de acuerdo al contexto, asumiendo una actitud siempre constante de reflexión, crítica y de motivación, reflejándose en los conocimiento adquiridos y demostrados en los estudiantes. En este sentido se elaboró una metodología para análisis de factores que inciden en la calidad educativa en la Universidad Nacional de Ingeniería (UNI) en el período del 2008 a 2021, siendo el propósito; la identificación aquellas acciones que fomentan la calidad educativa en la UNI y por ende en la mejora de los procesos áulicos donde el profesor es facilitador, tutor y gestor de conocimientos. En este orden de ideas se puede expresar que dentro de esos factores identificados el rol del docente en los procesos áulicos es primordial y debe de estar enfocado desde la mediación y comunicación didáctica, articulado con el dominio científico sin obviar los valores que son primordiales en la formación del aprendizaje de los estudiantes.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131298259","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

Explorando resultados de aprendizaje en una carrera de ingeniería 探索工程职业中的学习成果

Nexo Revista Científica Pub Date : 2022-09-30 DOI: 10.5377/nexo.v35i03.14994

Will Johnny Flores Delgadillo, Anayanci López Poveda

引用次数: 0

Capacidad de absorción de conocimiento. Estudio de caso múltiple 吸收知识的能力。多案例研究

Nexo Revista Científica Pub Date : 2022-09-30 DOI: 10.5377/nexo.v35i03.14995

Fabiola Lizbeth Buendia-Buendia, Igor Antonio Rivera-González, Danilo Chávez-Rodríguez, Mario Aguilar-Fernández

引用次数: 0

ERP System and Hidden Cost in the Civil Construction Sector 土木建筑行业ERP系统与隐性成本

Nexo Revista Científica Pub Date : 2022-09-30 DOI: 10.5377/nexo.v35i03.15010

Aline Araújo Fernandes, Antônio André Cunha Callado

{"title":"ERP System and Hidden Cost in the Civil Construction Sector","authors":"Aline Araújo Fernandes, Antônio André Cunha Callado","doi":"10.5377/nexo.v35i03.15010","DOIUrl":"https://doi.org/10.5377/nexo.v35i03.15010","url":null,"abstract":"This study aims to understand how ERP users see their role and interpersonal relationships to avoid hidden costs linked to its misuse. In order to understand the actors that are part of the functional network as users of ERP system, the study was carried out in a case study exploratory qualitative approach considering both the lack of similar previous studies in the literature and the understanding of the company in its own context. The process of data collection considered categories regarding organizational culture and hidden costs. The study used primary and secondary evidence for data triangulation. After organization and transcription of the collected material, content analysis was applied as data analysis technique on them. The investigated company proved to be positive for all the cultural characteristics analyzed, although it still presents dysfunctions in its activities. It was concluded that excluding situations with perfect system and actors, all organizations are subject to hidden costs. The observation of these can operationally, competitively and financially boost the organization, it is up to the manager to choose whether or not to pay attention to the “iceberg” in his direction. The research presents practical contributions to companies of the civil construction and also provides academic contribution by addressing the issue of costs information systems through a theoretical perspective from organizational culture.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"201202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123360077","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

Desarrollo de un algoritmo para la geolocalización de personas empleando redes sociales 开发一种利用社交网络对人进行地理定位的算法

Nexo Revista Científica Pub Date : 2022-09-30 DOI: 10.5377/nexo.v35i03.14991

Patricia Pérez-Romero, Israel Rivera-Zárate, Miguel Hernández-Bolaños

引用次数: 0

Development of innovative technology for processing secondary raw materials in the meat industry 发展肉类工业中加工二次原料的创新技术

Nexo Revista Científica Pub Date : 2022-09-30 DOI: 10.5377/nexo.v35i03.15005

I. A. Korotkiy, Evgeniy Nikolaevich Neverov, E. Korotkaya, P. Korotkih

{"title":"Development of innovative technology for processing secondary raw materials in the meat industry","authors":"I. A. Korotkiy, Evgeniy Nikolaevich Neverov, E. Korotkaya, P. Korotkih","doi":"10.5377/nexo.v35i03.15005","DOIUrl":"https://doi.org/10.5377/nexo.v35i03.15005","url":null,"abstract":"The slaughtered animals’ blood is a valuable secondary raw material in the meat industry. In this investigation, we propose a separation freezing technology for the blood, blood plasma and hemoglobin solution concentration. The processes of secondary meat raw materials separation freezing were studied for which the experiments for freezing in a capacitive crystallizer were conducted. The dependence of the freezing duration on the heat exchange surface temperature is determined and the cryoconcentration efficiency criterion is calculated. It is proved that the greatest freezing efficiency is observed at the heat exchange surface temperature of minus 2°C. At this temperature, the lowest dry matter loss was observed. The experiment in the separation freeze drying of a hemoglobin solution with the use of re-cryoconcentration was conducted. It is established that this technology can significantly reduce the dry matter loss. The pig blood plasma analysis before and after crystallization was conducted. It was found that crystallization has almost no effect on the amount and ratio of amino acids in the product.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121742618","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

Evaluating the effectiveness of cyber-physical systems and technologies in the construction complex 评估建筑综合体中网络物理系统和技术的有效性

Nexo Revista Científica Pub Date : 2022-09-30 DOI: 10.5377/nexo.v35i03.15008

I. Artamonova, I. Kharisov, L. Adamtsevich, N. Morgunov

{"title":"Evaluating the effectiveness of cyber-physical systems and technologies in the construction complex","authors":"I. Artamonova, I. Kharisov, L. Adamtsevich, N. Morgunov","doi":"10.5377/nexo.v35i03.15008","DOIUrl":"https://doi.org/10.5377/nexo.v35i03.15008","url":null,"abstract":"The problem of optimization of construction at all stages of the life cycle of a construction object is one of the most significant. The solution to this problem is the introduction of cyber-physical systems and technologies. The issues of introducing digital tools in construction have been of long-term interest to both researchers and practitioners, since these processes provide construction companies with additional economic benefits, reduce lead times and improve the quality of finished construction products. The article defines the main types of cyber-physical systems and technologies that have the potential for development the economy in the context of digitalization, identifies the main problems of introducing digital tools by small construction enterprises, systematizes and groups indicators for evaluating the effectiveness of their implementation. The authors propose three groups of performance indicators, including performance indicators of construction processes at the stages of the life cycle, performance indicators for the implementation of a construction process management system based on information systems and technologies, performance evaluation indicators for the implementation of investment projects for the implementation of cyber-physical systems and technologies in construction. The results of the study can be used to develop recommendations for improving the efficiency of construction processes based on the introduction of cyber-physical systems and technologies.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122926767","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

Reproducción masiva de hongos trichodermas previamente identificados de suelos Nicaragüenses en diferentes sustratos orgánicos 以前在尼加拉瓜土壤中发现的木霉真菌在不同有机基质中的大规模繁殖

Nexo Revista Científica Pub Date : 2022-09-30 DOI: 10.5377/nexo.v35i03.15000

Tatiana de los Ángeles López Martínez, Leandro Alberto Páramo Aguilera, Heysell Dodanig Delgado Silva

{"title":"Reproducción masiva de hongos trichodermas previamente identificados de suelos Nicaragüenses en diferentes sustratos orgánicos","authors":"Tatiana de los Ángeles López Martínez, Leandro Alberto Páramo Aguilera, Heysell Dodanig Delgado Silva","doi":"10.5377/nexo.v35i03.15000","DOIUrl":"https://doi.org/10.5377/nexo.v35i03.15000","url":null,"abstract":"Los hongos Trichodermas son de vital importancia para mantener los cultivos de plantas libres de hongos fitopatógenos, por ende, la presente investigación permitió determinar el mejor sustrato orgánico para la reproducción masiva de Trichodermas, previamente identificadas de suelos nicaragüenses. Utilizando sustratos como: Arroz (testigo), Maíz, Olote de maíz, Copra de coco y Melaza , con 5 cepas de hongos que fueron identificados como Trichoderma harzianum (72TG-11), Trichoderma harzianum (T3), Trichoderma harzianum (CVD-06), Trichoderma sp. (CIXD-11) y Trichoderma longibrachiatum (QIVD-12). Mediante fermentación sólida y bifásica, se realizó la producción de esporas por 26 y 15 días, respectivamente, obteniéndose que con olote de maíz se produjo concentraciones de esporas muy cercanos a los obtenidos con el arroz; la adición de melaza a los sustratos, produjo un ligero aumento en la concentración de esporas en comparación a los obtenidos sin melaza, excepto en las cepas T3 y CVD-06, lo cual aparentemente no muestra diferencias apreciables en el número de esporas obtenidos. Por otro lado, el olote de maíz es el mejor sustrato para la reproducción masiva de hongos Trichodermas, ya que se obtienen resultados satisfactorios en ambas fermentaciones y no compite con el alimento del ser humano. ","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131061919","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