Dmytro Melnychuk, I. Voinalovych, O. Shkurenko, S. Mushnykova, T. Chorna
The social challenges of modern globalization caused by the COVID-19 pandemic have led to significant changes in the development of economic systems at various levels. Social development in the direction of a post-industrial society activates the introduction of digital technologies in all areas of life, which requires paying attention not only to the innovative component of its development, but also to the intellectual one, since the digital transformation requires a constant updating of knowledge; this determines the purpose of this scientific study. The article aims to highlight the influence of intellectual and innovative determinants in the development of regions under current conditions, which are outlined by the manifestations of the COVID-19 pandemic and global digitalization in the development of economic systems. The foundation of the system approach methodology made it possible to distinguish the development trends of the regions in the conditions of the COVID-19 pandemic and global digitalization. It is proposed to create guidelines for the intellectual and innovative promotion, determinants of the development of the regions in the conditions of the COVID-19 pandemic and global digitalization, according to the socioeconomic, scientific-technological, organizational and legal components. The main guidelines of efforts to increase the role of intellectual and innovative determinants in the development of regional systems in the conditions of the COVID-19 pandemic and global digitalization have been tested, taking into account the principles of complexity, integrity, flexibility, efficiency and long term.
{"title":"The Influence of Intellectual and Innovative Determinants on the Development of Regions in the Conditions of COVID-19 and Global Digitalization","authors":"Dmytro Melnychuk, I. Voinalovych, O. Shkurenko, S. Mushnykova, T. Chorna","doi":"10.46925//rdluz.40.22","DOIUrl":"https://doi.org/10.46925//rdluz.40.22","url":null,"abstract":"The social challenges of modern globalization caused by the COVID-19 pandemic have led to significant changes in the development of economic systems at various levels. Social development in the direction of a post-industrial society activates the introduction of digital technologies in all areas of life, which requires paying attention not only to the innovative component of its development, but also to the intellectual one, since the digital transformation requires a constant updating of knowledge; this determines the purpose of this scientific study. The article aims to highlight the influence of intellectual and innovative determinants in the development of regions under current conditions, which are outlined by the manifestations of the COVID-19 pandemic and global digitalization in the development of economic systems. The foundation of the system approach methodology made it possible to distinguish the development trends of the regions in the conditions of the COVID-19 pandemic and global digitalization. It is proposed to create guidelines for the intellectual and innovative promotion, determinants of the development of the regions in the conditions of the COVID-19 pandemic and global digitalization, according to the socioeconomic, scientific-technological, organizational and legal components. The main guidelines of efforts to increase the role of intellectual and innovative determinants in the development of regional systems in the conditions of the COVID-19 pandemic and global digitalization have been tested, taking into account the principles of complexity, integrity, flexibility, efficiency and long term.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85695442","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}
S. Kovalchuk, O. Arefieva, A. Shevchenko, O. Kononov, Mykola Subachov
Under the current conditions of the COVID-19 pandemic, the practice of providing goods and services, as well as their availability to consumers, remains relevant and requires further scientific research. The purpose of the article is to substantiate the conceptual basis of using digital marketing technologies in the commercial activities of enterprises to increase their value, competitiveness and ensure sustainability of development in the conditions of the COVID-19 pandemic. The methodological basis of the study of the use of digital marketing technologies in the commercial activities of enterprises in the conditions of the COVID-19 pandemic is a systematic approach and principles of digital marketing management, including: goal orientation, efficiency, functionality and complexity. The feasibility of the complex application of digital marketing tools in the commercial activities of the enterprise for the implementation of the marketing strategy in the conditions of the COVID-19 pandemic has been proven, including: contextual advertising, SEO and SEM promotion, banner advertising, advertising windows, television advertising, radio advertising, advertising in gaming, shopping and other applications, native advertising, SMS mailing, QR codes in offline mode, viral advertising, advertising in messengers, teaser advertising, retargeting. The advantages and disadvantages of using digital marketing in the commercial activity of the enterprise in the conditions of the COVID-19 pandemic are highlighted. The need to apply promising innovative implementations in the field of digital marketing has been proven, which should include: the use of online testing; implementation of voice search; use of chat bots; use of video marketing; use of interactive content.
{"title":"The Use of Digital Marketing Technologies in the Commercial Activity to Increase Enterprises’ Value in the COVID-19 Conditions","authors":"S. Kovalchuk, O. Arefieva, A. Shevchenko, O. Kononov, Mykola Subachov","doi":"10.46925//rdluz.40.28","DOIUrl":"https://doi.org/10.46925//rdluz.40.28","url":null,"abstract":"Under the current conditions of the COVID-19 pandemic, the practice of providing goods and services, as well as their availability to consumers, remains relevant and requires further scientific research. The purpose of the article is to substantiate the conceptual basis of using digital marketing technologies in the commercial activities of enterprises to increase their value, competitiveness and ensure sustainability of development in the conditions of the COVID-19 pandemic. The methodological basis of the study of the use of digital marketing technologies in the commercial activities of enterprises in the conditions of the COVID-19 pandemic is a systematic approach and principles of digital marketing management, including: goal orientation, efficiency, functionality and complexity. The feasibility of the complex application of digital marketing tools in the commercial activities of the enterprise for the implementation of the marketing strategy in the conditions of the COVID-19 pandemic has been proven, including: contextual advertising, SEO and SEM promotion, banner advertising, advertising windows, television advertising, radio advertising, advertising in gaming, shopping and other applications, native advertising, SMS mailing, QR codes in offline mode, viral advertising, advertising in messengers, teaser advertising, retargeting. The advantages and disadvantages of using digital marketing in the commercial activity of the enterprise in the conditions of the COVID-19 pandemic are highlighted. The need to apply promising innovative implementations in the field of digital marketing has been proven, which should include: the use of online testing; implementation of voice search; use of chat bots; use of video marketing; use of interactive content.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82061039","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}
Objetivos: Evaluar la presión arterial (PA) en escolares del estado Táchira e investigar su asociación con el índice de masa corporal (IMC), dado que constituyen factores de riesgo cardiovascular. Métodos: Se estudiaron 84 escolares, de 9,05±1,36 años, 57,14% femeninas, 42,86% masculinos. Se tomó PA, medidas antropométricas; se calculó IMC. Considerando sobrepeso IMC >p90, obesidad >p97 según curvas venezolanas; pre-hipertensión ≥p90, hipertensión 1 ≥p95, usando valores adaptados del NHBPEP. Resultados: 3,6% presentó pre-hipertensión sistólica, 4,8% PA diastólica elevada (3,6% pre- hipertensión y 1,2% hipertensión estadio 1). Hubo correlación positiva y significativa entre IMC y PA (p=0,0001). Se observó PA ≥p90 en 28,6% de los niños obesos versus 4,8% de los normopeso. No hubo asociación del IMC y la PA con género ni edad. Conclusiones: Se encontró PA elevada en escolares, demostrándose asociación estadística entre PA alta y exceso de IMC, ambas ocasionan daño orgánico, por ende la importancia de su evaluación, detección e intervención precoz.
{"title":"Presión arterial en escolares del estado Táchira - Venezuela y su asociación con el índice de masa corporal","authors":"Saravik Molina Albarracín, Erwin Fabián Lucero Guerrero, Royma Ligeya Quintero Hernández","doi":"10.46925//rdluz.40.16","DOIUrl":"https://doi.org/10.46925//rdluz.40.16","url":null,"abstract":"Objetivos: Evaluar la presión arterial (PA) en escolares del estado Táchira e investigar su asociación con el índice de masa corporal (IMC), dado que constituyen factores de riesgo cardiovascular. Métodos: Se estudiaron 84 escolares, de 9,05±1,36 años, 57,14% femeninas, 42,86% masculinos. Se tomó PA, medidas antropométricas; se calculó IMC. Considerando sobrepeso IMC >p90, obesidad >p97 según curvas venezolanas; pre-hipertensión ≥p90, hipertensión 1 ≥p95, usando valores adaptados del NHBPEP. Resultados: 3,6% presentó pre-hipertensión sistólica, 4,8% PA diastólica elevada (3,6% pre- hipertensión y 1,2% hipertensión estadio 1). Hubo correlación positiva y significativa entre IMC y PA (p=0,0001). Se observó PA ≥p90 en 28,6% de los niños obesos versus 4,8% de los normopeso. No hubo asociación del IMC y la PA con género ni edad. Conclusiones: Se encontró PA elevada en escolares, demostrándose asociación estadística entre PA alta y exceso de IMC, ambas ocasionan daño orgánico, por ende la importancia de su evaluación, detección e intervención precoz.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83694170","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}
Bobrova Mariia, Holodaieva Olena, Larycheva Olena, Tsviakh Olha, V. Anton
Objectiveof the research: To establish the relationship between the varietal immunoresistance of plants and quantitative changes in pro-oxidant-antioxidant balance parameters. The subject of the research is the effect of prooxidants and antioxidants on changing the resistance of a plant variety to the invasion of pathogens.Methodology: The following plants were used in the experiment: Oryza sativa L., Avena sativa L., Zea mays L., Hordeum vulgare L., Triticum durum Desf., Panicum miliaceum L.The level of superoxide anion radical,TBA-active products,activity of superoxide dismutase, catalase, cytochrome oxidase,concentration of ascorbic acid, and glutathionewere determined.The results of the research show that the grains of highly resistant varieties have significantly higher activity of superoxide dismutase, catalase, cytochrome oxidase, higher concentration of ascorbic acid, and glutathione, lower contentof superoxide anion radical and TBA-active products.Practical consequences: expanding the sown areas of highly disease-resistant cereal varieties and replacing one variety with another in limited sown areas. Value/originality:The study of the biochemical bases of the stability of the variety provides a basis for obtaining new varietiesof plants and improving existing varieties.
{"title":"Influence of Components of the Pro-Oxidant-Antioxidant System on the Immune Response Levels of Cereal Crop Varieties","authors":"Bobrova Mariia, Holodaieva Olena, Larycheva Olena, Tsviakh Olha, V. Anton","doi":"10.46925//rdluz.40.07","DOIUrl":"https://doi.org/10.46925//rdluz.40.07","url":null,"abstract":"Objectiveof the research: To establish the relationship between the varietal immunoresistance of plants and quantitative changes in pro-oxidant-antioxidant balance parameters. The subject of the research is the effect of prooxidants and antioxidants on changing the resistance of a plant variety to the invasion of pathogens.Methodology: The following plants were used in the experiment: Oryza sativa L., Avena sativa L., Zea mays L., Hordeum vulgare L., Triticum durum Desf., Panicum miliaceum L.The level of superoxide anion radical,TBA-active products,activity of superoxide dismutase, catalase, cytochrome oxidase,concentration of ascorbic acid, and glutathionewere determined.The results of the research show that the grains of highly resistant varieties have significantly higher activity of superoxide dismutase, catalase, cytochrome oxidase, higher concentration of ascorbic acid, and glutathione, lower contentof superoxide anion radical and TBA-active products.Practical consequences: expanding the sown areas of highly disease-resistant cereal varieties and replacing one variety with another in limited sown areas. Value/originality:The study of the biochemical bases of the stability of the variety provides a basis for obtaining new varietiesof plants and improving existing varieties.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84226532","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}
La contextualización de la enseñanza consiste en adaptar los contenidos, estrategias y recursos a la realidad social, cultural y ecológica de los estudiantes; también, implica desarrollar las temáticas y sesiones de aprendizajes, utilizando ejemplos de la vida cotidiana. El objetivo de esta investigación fue caracterizar la enseñanza contextualizada para el aprendizaje de las Ciencias Naturales en los estudiantes de educación secundaria. La metodología utilizada en este estudio fue descriptiva, el diseño de campo, no experimental y transversal. La población estuvo constituida por 36 docentes de instituciones públicas de educación secundaria, del municipio Mara, estado Zulia, Venezuela. Los resultados expresan que los tipos de estrategias que favorecen el aprendizaje, los elementos que benefician la contextualización de los contenidos y las habilidades que contribuyen al aprendizaje de Ciencias Experimentales, son poco eficientes, por lo que se concluye, que los docentes que enseñan estas asignaturas utilizan en pocas oportunidades estrategias adaptadas al contexto que permiten promover el aprendizaje.
{"title":"La enseñanza contextualizada para el aprendizaje de las Ciencias Naturales","authors":"Savier Acosta, Manuel Barrios","doi":"10.46925//rdluz.40.06","DOIUrl":"https://doi.org/10.46925//rdluz.40.06","url":null,"abstract":"La contextualización de la enseñanza consiste en adaptar los contenidos, estrategias y recursos a la realidad social, cultural y ecológica de los estudiantes; también, implica desarrollar las temáticas y sesiones de aprendizajes, utilizando ejemplos de la vida cotidiana. El objetivo de esta investigación fue caracterizar la enseñanza contextualizada para el aprendizaje de las Ciencias Naturales en los estudiantes de educación secundaria. La metodología utilizada en este estudio fue descriptiva, el diseño de campo, no experimental y transversal. La población estuvo constituida por 36 docentes de instituciones públicas de educación secundaria, del municipio Mara, estado Zulia, Venezuela. Los resultados expresan que los tipos de estrategias que favorecen el aprendizaje, los elementos que benefician la contextualización de los contenidos y las habilidades que contribuyen al aprendizaje de Ciencias Experimentales, son poco eficientes, por lo que se concluye, que los docentes que enseñan estas asignaturas utilizan en pocas oportunidades estrategias adaptadas al contexto que permiten promover el aprendizaje.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88099395","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}
R. Oleksenko, Y. Bortnykov, E. Kryvolapov, V. Bilohur, Eduard Kliuienko, L. Radchenko
The purposeof the proposed research is to create a metaphysical portrait sketch of Melitopol in the symbolic circle "honey -milk -water" in the context of attracting symbolic resources problem in tourism.In an intensive way, and following thestrengtheningof homo viator phenomenon in the global world, research in the touristic field and philosophy of tourism are increasingly turning their attention to the "internal resource", including in this concept, in addition to natural and cultural-historical, also symbolic resource. The work uses such methods as dialectical and metaphysical, the principle of comprehensiveness of research, the general logical method, and other methods of scientific research. Tourist legend as an applied direction can become an effective marketing mechanism, as a result of which it is possible, using a symbolic resources variety and tools, to create humanitarian and social development perspectives, agreed and identified through analysis of mythological structures and conceptual shells for harmonious and effective development of these territories. In this aspect, tourism as oneof the mass culture branches will produce tourist flows directed to previously elaboratedterritorial brands.
{"title":"Metaphysical Portrait of Melitopol in the Symbolic Circle \"Honey -Milk -Water\"(The Problem of Symbolic Resources in Tourist Activities)","authors":"R. Oleksenko, Y. Bortnykov, E. Kryvolapov, V. Bilohur, Eduard Kliuienko, L. Radchenko","doi":"10.46925//rdluz.40.11","DOIUrl":"https://doi.org/10.46925//rdluz.40.11","url":null,"abstract":"The purposeof the proposed research is to create a metaphysical portrait sketch of Melitopol in the symbolic circle \"honey -milk -water\" in the context of attracting symbolic resources problem in tourism.In an intensive way, and following thestrengtheningof homo viator phenomenon in the global world, research in the touristic field and philosophy of tourism are increasingly turning their attention to the \"internal resource\", including in this concept, in addition to natural and cultural-historical, also symbolic resource. The work uses such methods as dialectical and metaphysical, the principle of comprehensiveness of research, the general logical method, and other methods of scientific research. Tourist legend as an applied direction can become an effective marketing mechanism, as a result of which it is possible, using a symbolic resources variety and tools, to create humanitarian and social development perspectives, agreed and identified through analysis of mythological structures and conceptual shells for harmonious and effective development of these territories. In this aspect, tourism as oneof the mass culture branches will produce tourist flows directed to previously elaboratedterritorial brands.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76503735","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}
Several studies have been carried out related to the analysis of the relationship with respect to the dynamic properties of f and its hyperextension ̄f. However, the literature regarding the analysis of the effects of individual and collective chaos on their behaviour is scarce. Therefore, in this article several conjectures and questions are established according to the affectation of individual chaos in an ecosystem and its chaotic behaviour within the dynamics of this ecosystem, but as a whole. Thus, in the first instance, an introduction to the conceptualization of topological transitivity, chaos in the Devaney sense and how they are specified in continuous linear operators arranged in a Fréchet space (hypercyclic operators) will be established. In addition, the different notions of chaos that can occur depending on the relationship of the function, and its hyperextension will be described, to finally corroborate the present chaos with greater force than Devaney’saccording to the strong periodic specification property, the same one that applies to both f and a ̄f with the purpose of verifying the directionality in which individual and collective chaos can occur.
{"title":"The Relationships Between Discrete Dynamical Systems in Topological Spaces and their respective Hyperextensions to sets of Compact Spaces","authors":"Héctor Méndez-Gómez, Jorge Luís Yaulema-Castañeda, Paulina Fernanda . Bolaños-Logroño, Fernando Ricardo Márquez-Sañay","doi":"10.46925//rdluz.40.04","DOIUrl":"https://doi.org/10.46925//rdluz.40.04","url":null,"abstract":"Several studies have been carried out related to the analysis of the relationship with respect to the dynamic properties of f and its hyperextension ̄f. However, the literature regarding the analysis of the effects of individual and collective chaos on their behaviour is scarce. Therefore, in this article several conjectures and questions are established according to the affectation of individual chaos in an ecosystem and its chaotic behaviour within the dynamics of this ecosystem, but as a whole. Thus, in the first instance, an introduction to the conceptualization of topological transitivity, chaos in the Devaney sense and how they are specified in continuous linear operators arranged in a Fréchet space (hypercyclic operators) will be established. In addition, the different notions of chaos that can occur depending on the relationship of the function, and its hyperextension will be described, to finally corroborate the present chaos with greater force than Devaney’saccording to the strong periodic specification property, the same one that applies to both f and a ̄f with the purpose of verifying the directionality in which individual and collective chaos can occur.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89194519","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}
O. Arefieva, V. Tytykalo, V. Kalyniuk, N. Sytnik, I. Gnitetskyi
The relevance of this scientific research is justified by the increased attention that the economic community pays to economic security, for the development of microeconomic systems in modern conditions of uncertainty, caused by global challenges, as a result of the COVID-19 pandemic. The purpose of the study is to identify the principles of the formation of an adaptive management system of economic security of enterprises in the conditions of the COVID-19 pandemic. The authors founded the methodological basis for the formation of the adaptive management system of the economic security of companies, based on the identification of the systemic approach and specific principles of compliance, duality and feedback, as well as the functions of adaptive management. The conducted research makes possible to generalize that the formation of a system of adaptive management of the economic security of enterprises in the COVID-19 conditions is a special type of management activity, which involves the use of a wide range of measures and tools for making effective management decisions, which are characterized by timeliness, flexibility, creativity and innovation.
{"title":"Formation of the Adaptive Management System for the Economic Security of Enterprises in the COVID-19 Context","authors":"O. Arefieva, V. Tytykalo, V. Kalyniuk, N. Sytnik, I. Gnitetskyi","doi":"10.46925//rdluz.40.30","DOIUrl":"https://doi.org/10.46925//rdluz.40.30","url":null,"abstract":"The relevance of this scientific research is justified by the increased attention that the economic community pays to economic security, for the development of microeconomic systems in modern conditions of uncertainty, caused by global challenges, as a result of the COVID-19 pandemic. The purpose of the study is to identify the principles of the formation of an adaptive management system of economic security of enterprises in the conditions of the COVID-19 pandemic. The authors founded the methodological basis for the formation of the adaptive management system of the economic security of companies, based on the identification of the systemic approach and specific principles of compliance, duality and feedback, as well as the functions of adaptive management. The conducted research makes possible to generalize that the formation of a system of adaptive management of the economic security of enterprises in the COVID-19 conditions is a special type of management activity, which involves the use of a wide range of measures and tools for making effective management decisions, which are characterized by timeliness, flexibility, creativity and innovation.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84542349","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}
Israel García-León, J. L. Hernández-Mendoza, Cristian Lizarazo-Ortega, Jesús Di Carlo Quiroz-Velásquez, Anabel Bocanegra-Alonso, Karla Selene Estrada-Ortiz
La floculación es un método de precipitación que retiene los sólidos suspendidos, liberando aguas grises con una carga orgánica menor. El polvo de moringa tiene un efecto floculante y en este caso se evaluó su efecto entre las poblaciones bacterianas, especialmente las de importancia en salud pública. El estudio se realizó en la Ciudad de Reynosa, Tamaulipas, que tiene dos canales que conducen agua para uso urbano y agrícola. Cuatro sitios fueron muestreados, dos en la ciudad y los otros en la periferia de la ciudad. Las muestras de agua recolectadas en cada punto fueron divididas en dos. Un lote fueron los controles y al otro se les agregó polvo de moringa. Posteriormente, en todos los lotes se realizó una extracción de ADN para análisis metagenómico de la biota presente. Los resultados mostraron que hay un efecto floculante en las muestras de agua y que con el tratamiento se alteran las poblaciones microbianas; finalmente, se observa que las poblaciones de bacterias de importancia en salud pública no son retiradas con el tratamiento.
{"title":"Polvo de moringa como floculante en agua cruda para remoción de bacterias de importancia en salud pública","authors":"Israel García-León, J. L. Hernández-Mendoza, Cristian Lizarazo-Ortega, Jesús Di Carlo Quiroz-Velásquez, Anabel Bocanegra-Alonso, Karla Selene Estrada-Ortiz","doi":"10.46925//rdluz.40.12","DOIUrl":"https://doi.org/10.46925//rdluz.40.12","url":null,"abstract":"La floculación es un método de precipitación que retiene los sólidos suspendidos, liberando aguas grises con una carga orgánica menor. El polvo de moringa tiene un efecto floculante y en este caso se evaluó su efecto entre las poblaciones bacterianas, especialmente las de importancia en salud pública. El estudio se realizó en la Ciudad de Reynosa, Tamaulipas, que tiene dos canales que conducen agua para uso urbano y agrícola. Cuatro sitios fueron muestreados, dos en la ciudad y los otros en la periferia de la ciudad. Las muestras de agua recolectadas en cada punto fueron divididas en dos. Un lote fueron los controles y al otro se les agregó polvo de moringa. Posteriormente, en todos los lotes se realizó una extracción de ADN para análisis metagenómico de la biota presente. Los resultados mostraron que hay un efecto floculante en las muestras de agua y que con el tratamiento se alteran las poblaciones microbianas; finalmente, se observa que las poblaciones de bacterias de importancia en salud pública no son retiradas con el tratamiento.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77358056","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}
Infinite matrices play an important role in many aspects of analysis, algebra, differential equations, andthetheory of mechanical vibrations.Jacobi matrices are interestingbecause they are the simplest representatives of symmetric operators in infinite-dimensional space. they are used in interpolation theory, quantum physics, moment problem.In this paper, basedon the elements of Jacobi matrix, itwill be determinedthe type of the operator that occurs when processing the results of measurements of random variables. The first type of operators arematrices,for which the moment problem has a unique solution, and Jacobi matrix generates a specific moment problem. The second type of operators arematrices, for which the moment problem has many solutions, and Jacobi matrix is said to generate an indeterminate moment problem.
{"title":"Method of Mathematical Theory of Moments","authors":"Bulatnikova Irina Vyacheslavovna","doi":"10.46925//rdluz.40.05","DOIUrl":"https://doi.org/10.46925//rdluz.40.05","url":null,"abstract":"Infinite matrices play an important role in many aspects of analysis, algebra, differential equations, andthetheory of mechanical vibrations.Jacobi matrices are interestingbecause they are the simplest representatives of symmetric operators in infinite-dimensional space. they are used in interpolation theory, quantum physics, moment problem.In this paper, basedon the elements of Jacobi matrix, itwill be determinedthe type of the operator that occurs when processing the results of measurements of random variables. The first type of operators arematrices,for which the moment problem has a unique solution, and Jacobi matrix generates a specific moment problem. The second type of operators arematrices, for which the moment problem has many solutions, and Jacobi matrix is said to generate an indeterminate moment problem.","PeriodicalId":42302,"journal":{"name":"Revista de la Universidad del Zulia","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78002135","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}
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