bluuebunny/crossref_metadata_2025 huggingface dataset:
Efficient Radio Resource Management in Cell-less Wireless Communication Systems
Authors: Zeyad Taha Israa , Othman Al Janaby Ali
Published: September 2024

In this paper, the particle swarm optimization (PSO) method with dynamic generation of biasing factors is used to determine the optimal particle size, maximize cell spectral efficiency (CSE) and balance the load in 5G networks. This work studies two distinct interference scenarios: in the first approach, CSE is calculated with varying numbers of users, when different radio services are used by each tier (when several radio access technologies are used), and when interference is received by the consumer only from the same tier base stations (BSs). In the second approach, interference is created when all levels use the same radio services and interference from BSs belonging to the same tier and other tiers is received by the consumer. Simulation results show that the cell-less network performs better than the cellular network in terms of maximizing CSE and balancing the load.
Towards Collective Sustainability
Authors:   , Bennie-Steel Bronte
Published: September 2024

The environmental and social issues associated with modern lifestyles present a unique set of challenges that architecture has an important role in helping to address. The basic human right of housing has become a commodity that is becoming increasingly inaccessible for people. Change is required in our perception and approach to housing and its potential to facilitate positive change and work towards a point where quality housing is accessible for all New Zealanders. This thesis explores the role of Architecture, through the integration of cohousing principles, in designing homes that help to facilitate holistically sustainable lifestyles with the goal of minimizing issues of isolation, environmental degradation, and inaccessible. Having quality living spaces that bring people together to make positive lifestyle changes will be vital in working towards collective sustainability.
Practical Strategies of “Soldiers Leading Soldiers” Mode in Primary School Teaching in Suburban Areas
Authors: Chen Xianhui
Published: September 2024

With the promotion of curriculum reform, China’s basic education is moving from the era of “knowledge” to the era of “core literacy.” In the face of this teaching reform, teachers should focus on the main body of education and teaching-students, let students become the master of the classroom, and let the core literacy really land. The “soldiers leading soldiers” mode is a teaching method carried out given the large number of students with learning difficulties in class and the backward quality of class teaching. Through “soldiers teaching soldiers” and “soldiers training soldiers,” students’ mutual assistance can be achieved and the overall improvement of class teaching quality can be promoted. It extends from classroom to after-school, giving full play to the enthusiasm of students of different ability levels. This paper carries out practical research on primary school teaching by studying the organizational structure and evaluation mode of the “soldiers leading soldiers” mode.
Discussion on the Reform of Teaching Organization in Universities under the Background of Engineering Education Certification
Authors: Lin Guoyuan , Li Yonggang , Bao Yu
Published: September 2024

Engineering education certification is a comprehensive evaluation of educational institutions, curriculum settings and teaching quality, which plays a very important role in engineering education. The grassroots teaching organization is the main body and cornerstone of the implementation of education. The construction of the grassroots teaching organization suitable for engineering education certification is the inevitable requirement of engineering education. This article analyzes the requirements of engineering education certification for grassroots teaching organizations, points out the existing problems in grassroots teaching organizations, and further proposes ways to reform grassroots teaching organizations.
A Study on the Competency Model Building (CMB) for the Curriculum-based Moral Education (ME) of Foreign Language Teachers: An Empirical Study Based on Multi-factor Analysis
Authors: Ma Yue , Fu Qiaochu
Published: September 2024

50 EFL teachers, 100 students, and 12 administrative leaders from 10 universities in Southern China are selected as subjects to explore the structural features of EFL teachers’ competence in curriculum-based moral education. Questionnaires, interviews, and classroom observations are conducted to gather their insights and feedback on how to integrate moral education into English language teaching (ELT). The data is analyzed using both qualitative and quantitative multi-factor analysis. A novel competency model is proposed with four layers: teaching design, situational construction, classroom interaction, and multiple assessment. Recommendations are provided to enhance foreign language teachers’ awareness of moral education and the quality of curriculum-based moral education.
A Practical Study on Lingnan Culture’s Integration into Higher Vocational English Teaching
Authors: Xiao Gaohua
Published: September 2024

Taking excellent cultural inheritance as the starting point, further strengthening the design of English teaching in higher vocational colleges is the key to promoting the development of English teaching and cultivating students’ comprehensive quality. Under the background of the new era, English teachers in higher vocational colleges combine the regional characteristics of Lingnan culture with the integration of regional culture and curriculum teaching, which can further strengthen students’ language ability and application ability, and is also conducive to the inheritance and development of Lingnan culture. This paper studies the practice of integrating Lingnan culture into English teaching in higher vocational colleges and puts forward corresponding views.
The Application of Multimodal Teaching Mode in English Writing Teaching in Senior High School
Authors: Chai Nanping
Published: September 2024

With the deepening of education reform, English writing teaching in senior high school should be further optimized. Teachers should actively introduce new teaching concepts and teaching methods, so as to arouse students’ interest in English writing learning, strengthen their understanding and application of what they have learned, and improve the teaching effect. As a popular teaching mode at present, multi-modal teaching can greatly enrich the teaching content of senior high school English writing, broaden the path of education, and greatly promote the comprehensive development of students. In view of this, this paper will analyze the application of multimodal teaching mode in senior high school English writing teaching, and put forward some strategies for your reference.
The Integration Value and Path of Red Culture in Ideological and Political Education in Colleges and Universities
Authors: Hu Cheng
Published: September 2024

With the deepening of education reform, ideological and political education in colleges and universities should be further optimized. Teachers should actively introduce new education concepts and teaching methods, so as to better arouse students’ interest, strengthen their understanding and application of the knowledge, and improve the education effect. Red culture, as a popular educational auxiliary resource, can greatly enrich the content of ideological and political education in colleges and universities, broaden the path of education, and greatly promote the more comprehensive development of students. In view of this, this article will analyze the integration of red culture in ideological and political education in colleges and universities, and put forward some strategies for your colleagues’ reference.
The Application of Blended Online and Offline Teaching Methods in College English Public Courses
Authors: Cui Wumengxin
Published: September 2024

In the multimedia age, college English is gradually adopting a hybrid teaching method between online and offline. The hybrid teaching method has the advantages of face-to-face teaching and network teaching. Internet technology provides technical support for the combination of traditional classroom and virtual learning environments, provides personalized learning experiences for students, improves the teaching quality of teachers and optimizes the learning effect of students [1]. The online-to-offline hybrid teaching method ADAPTS to the development trend of education and conforms to the basic national conditions of China. Because of this, this paper will analyze the challenges, value and significance of blended teaching method in college English public courses, and on this basis, focus on analyzing the innovative path of adopting blended teaching method in college English public courses to provide some inspiration and suggestions for college teachers to carry out blended English teaching.
On the Application of English Picture Books in English Teaching of Preschool Education in Secondary Vocational Schools
Authors: Liu Jian
Published: September 2024

With the continuous improvement of parents’ attention to early childhood education, English learning tends to develop at a younger age. Picture books have become a hot “top current” in infants and young children. How to use picture books well and talk about picture books well also puts forward higher requirements for the future quality of preschool teachers. Therefore, the English classroom of preschool education also needs to be reformed, which needs to keep up with the pace of the era, make adjustments to the course content, and increase the cultivation of the basic English ability and teaching ability of preschool students in secondary vocational schools, to better meet the needs of future career development. Based on the current background and development situation, this paper discusses how to introduce English picture books into the English classroom of preschool education in secondary vocational schools and the role of English picture books in the English teaching of preschool education.
Exploration on Teaching Reform of Basic Mechanics Course for Engineering Majors in Universities
Authors: Zhang Weiguang , Li Jijun , Li Lei , Fu Lei
Published: September 2024

Basic Mechanics is an important professional basic course in engineering majors in colleges and universities. With the continuous development of social science and technology, the application range of Basic Mechanics is becoming wider. In order to give full play to the role of Basic Mechanics courses in engineering majors, this paper starts with the characteristics of Basic Mechanics courses, analyzes the current teaching status and problems of Basic Mechanics courses in engineering majors. This paper puts forward some measures for teaching reform from the aspects of teaching objectives, teaching methods, teaching level and assessment system, in order to improve teaching quality and enhance students’ practical ability, so as to cultivate high-quality and highly skilled comprehensive talents for the society.
A Teaching Design of Ideological and Political Education in the College English Listening Curriculum Based on OBE Concept
Authors: Hui Yukun
Published: September 2024

Under the guidance and requirements of ideological work in colleges and universities in the new era, curriculum ideology and politics have always been a highly-valued part of political work and curriculum sublimation of the government. As an important content of higher education, college English listening courses should better effectively combine curriculum ideology and politics with teaching contents. This not only enriches the content of English listening teaching activities but also enables students to think deeply and form correct views on life values, moral values and worldviews. In the English teaching method, the OBE concept insists on being “student-centered,” which is a results-oriented education model. On the premise of combining the syllabus and teaching content, this paper designs and discusses the first chapter of unit 3 in the book “Over to You 2” from the aspects of the specific teaching process, the analysis of the OBE concept and the integration of curriculum ideological and political elements, to give inspiration and reference based on the concept of OBE.
Research on the Education System Construction of College Sports Volleyball Curriculum from the Perspective of “Curriculum Ideology and Politics”
Authors: Sheng Chunyuan , Yang Hao
Published: September 2024

With the deepening of education reform, the teaching work of college sports volleyball courses needs to be further optimized and perfected. Teachers should actively integrate the spirit of women’s volleyball into the teaching inside and outside the class to form an integrated volleyball education system. In particular, teachers should pay attention to the scientific and practical effect of volleyball teaching in class to ensure that students master basic volleyball skills and theoretical knowledge. After class, volleyball competitions, volleyball carnivals and other related activities can be held to create a strong volleyball cultural atmosphere and enhance students’ interest and participation in volleyball. Through such integrated teaching inside and outside class, it can effectively improve students’ volleyball level, students can cultivate their spirit of unity and cooperation and sense of competition and lay a solid foundation for cultivating socialist builders and successors with all-round development of morality, intelligence, physical fitness, the United States and labor. Because of this, this article will analyze the construction of the college sports volleyball curriculum education system from the perspective of “curriculum ideology and politics” and put forward some strategies.
Research on the Reform and Innovation of Foreign Language Teaching in Art Schools
Authors: Zhang Suling
Published: September 2024

In the era of globalization, foreign language ability has become increasingly important for artistic talents. The traditional foreign language teaching model has been unable to meet the current social demand for artistic talents’ cross-cultural communication ability. Therefore, art colleges should speed up the reform and innovation of foreign language teaching. This paper first analyzes the existing problems in the current foreign language teaching in art colleges, including single teaching content, outdated teaching methods, lack of practical teaching, and insufficient teachers. Then, the paper puts forward some targeted reform strategies, including improving the teaching content to ensure comprehensive development. including innovative teaching methods to build efficient classrooms, exerting importance on practical teaching and enhancing practical ability, as well as strengthening the teaching staff and improving the teaching level. The purpose of this paper is to provide an effective reference for foreign language teachers in art colleges, effectively improve the cross-cultural communication ability of art talents, and cultivate art talents suitable for the development of the new era.
Analysis of Innovative Strategies of Classical Chinese Education in Colleges and Universities from the Perspective of Cultural Confidence
Authors: Zhou Zhengxu
Published: September 2024

Under the background of the steady advancement of social and economic development and the continuous improvement of international status, colleges and universities occupy an important position in the whole education system. At the same time, college students also bear the important responsibility to realize the dream of the great rejuvenation of the Chinese nation. To this end, colleges and universities need to take effective measures to improve students’ comprehensive quality, which can enhance students’ cultural self-confidence and stimulate their cultural consciousness through the development of classical Chinese education. Therefore, teachers can innovate the education ideas, methods and models of classical Chinese studies from the perspective of cultural self-confidence. In this way, they can not only carry forward traditional culture and promote classical Chinese studies but also enhance students’ cultural self-confidence and improve students’ comprehensive literacy. This paper studies classical Chinese studies education, which plays a vital role in cultivating students’ cultural self-confidence and the construction of school quality education. Therefore, this paper briefly analyzes the practical significance of carrying out classical Chinese studies education in colleges and universities and then analyzes the existing problems in the current classical Chinese studies education, and finally puts forward specific innovative strategies based on the perspective of cultural self-confidence.
Analysis of the Teaching Reform Path for Environmental Engineering Technology Majors in Higher Vocational Education Based on the “1+X” Certificate
Authors: Wang Shengfu , Hu Xiaowei , Yuan Min , Su Qingmei
Published: September 2024

In the context of building an innovative country, the country has put forward higher requirements for talent cultivation in vocational colleges. Vocational colleges should continuously explore and improve talent cultivation work to meet these requirements while cultivating more professional and practical talents for the country and society. This article takes the Environmental Engineering Technology major as an example. Integrating the concept of “1+X” certificate into environmental engineering technology teaching can better construct the curriculum system of the Environmental Engineering Technology major, make the curriculum structure more scientific, complete and standardized, and help students understand the connection between certificates and education from multiple perspectives, thereby achieving effective reform of the curriculum of the Environmental Engineering Technology major. Based on this, the article will elaborate on the concept and significance of the “1+X” certificate and analyze in detail the teaching system construction ideas of the environmental engineering technology major courses in higher vocational education under the background of the “1+X” certificate. Studying the shortcomings in the current development of environmental engineering technology education in higher vocational education in China and proposing improvement measures for the environmental engineering technology major courses in higher vocational education to address existing problems will provide certain references and assistance for the subsequent reform of environmental engineering teaching in higher vocational education in China.
Research on the Cultivation of Innovative Talents for Professional Undergraduate Finance Majors from the Perspective of Digital Economy
Authors: Peng Jian
Published: September 2024

Along with the arrival of the digital economy, the country’s financial industry ushered in the development of the “golden period,” under this background financial services, technology and others continue to optimize and perfect. To meet the needs of social development, the relevant positions need a large number of high-quality, skilled financial professionals, but the current personnel training model has been unable to achieve the established goals. Therefore, in the context of the new era, vocational colleges need to deeply analyze the new requirements of the digital economy on the ability of professional talents, then discuss the restrictive factors existing in the current training of professional talents, and put forward effective reform measures to improve the quality of talent training and effectively deepen the reform of professional teaching.
The Practice Path of Educating Students by Total Factor Management of Scientific and Technological Innovation Projects
Authors: Zhang Chunjun
Published: September 2024

The practical education of science and technology innovation for college students has wide coverage and is deeply loved by students. It is an important way for colleges and universities to train students in talents. Project management is the basic carrier of college students’ science and technology innovation practice education. It is necessary to fully tap the educational value of college students’ science and technology innovation project management. With the focus of “management means, management carrier, all staff thinking and politics, and students’ needs”, the author has explored the whole elements of project management education resources and explored the practical path of project management education.
“OBE + PBL” Educational Concept for Cultivating “Live Streaming Sales” Talents in Business English
Authors: Peng Ting
Published: September 2024

With the rapid development of e-commerce, “live streaming sales” has become an emerging sales model. This paper aims to explore how to build a training model for “live streaming sales” in Business English under the guidance of Outcome-Based Education (OBE) and Problem-Based Learning (PBL) educational concept, which is a new teaching model aimed at cultivating students’ practical abilities and innovative thinking. The research shows that the “OBE + PBL” educational concept can effectively improve students’ professional skills and comprehensive quality, providing new ideas and methods for the training of “live streaming sales” in the Business English major.
Application of Rain Classroom in College English Teaching: An Exploratory Analysis of Teacher Experience on Workload and Efficiency
Authors: Yao Xiaochao
Published: September 2024

This study aims to explore the impact of the Rain Classroom platform on teachers’ workload and efficiency in college English classrooms. Through semi-structured interviews and classroom observations with several university English teachers who have used Rain Classroom, the findings indicate that while the platform reduces certain repetitive tasks and enhances classroom interaction efficiency, it also increases the technological learning and operational burden on teachers. The study provides valuable theoretical and practical insights for the effective application of educational technology in language teaching.
Research on the Current Situation and Enhancement Strategies of the Integration of Civics and Political Elements in the Vocal Music Classroom of Guangzhou University
Authors: Wang Hongtao , Shengchuan Ruiji
Published: September 2024

The purpose of this paper is to explore the current situation of integrating the Civics and Political elements in the vocal music classroom of the School of Music and Dance of Guangzhou University, and to put forward corresponding countermeasures. Through questionnaire survey and interview method, the feasibility and effect of integrating Civics and Political elements in vocal music classrooms both online and offline were analyzed. It is found that although most students have a positive attitude towards the integration of Civics and Political elements, there are still problems of low popularity and insufficient in-depth understanding by students. The article concludes with countermeasures to innovate the integration path, strengthen Civics and Political education, and enhance the teachers’ education ability. This study not only provides useful practical experience for the curriculum of Civics and Political elements in music education but also provides a reference for the construction of the curriculum in other art majors.
Determinan Kejadian Diare Pada Warga Binaan di Lembaga Pemasyarakatan Kelas IIA Tanjung Raja
Authors: Lestari Erfi Wardha
Published: September 2024

Latar belakang: Kejadian diare pada pada warga binaan di Lembaga Pemasyarakatan Kelas IIA Tanjung Raja tahun 2021 tercatat sebanyak 14,4% dan meningkat pada tahun 2022 menjadi 24,4% dari jumlah total seluruh warga binaan yaitu 914 orang. Metode: Penelitian ini bersifat kuantitatif menggunakan desain cross – sectional dengan jumlah sampel sebanyak 136 responden yang dipilih menggunakan teknik proportional random sampling. Analisis data dilakukan secara bertahap yaitu analisis univariat, analisis bivariat berdasarkan uji chisquare, dan analisis multivariat berdasarkan uji regresi logistic berganda. Hasil: Hasil analisis menunjukkan adanya hubungan yang signifikan antara kejadian diare pada warga binaan dengan cuci tangan pakai sabun (p=0,006), kebiasaan memotong kuku (p=0,032), kondisi jamban (p=0,030), kebersihan lantai (p=0,016), kepadatan hunian (p=0,043) dan tidak menunjukkan adanya hubungan antara hubungan antara kejadian diare pada warga binaan dengan pembuangan sampah (p=1,000). Hasil analisis multivariat menunjukkan variabel yang paling signifikan terhadap kejadian diare ialah kebiasaan memotong kuku (PR 2,807 , Cl=1,270 – 6,203) setelah di kontrol oleh variabel confounding. Kesimpulan: Terdapat hubungan yang signifikan antara kejadian diare pada warga binaan dengan cuci tangan pakai sabun, kebiasaan memotong kuku, kondisi jamban, kebersihan lantai dan kepadatan hunian, dengan kejadian diare serta variabel kebiasaan memotong kuku menjadi variabel yang paling dominan berhubungan dengan kejadian diare pada warga binaan di Lembaga Pemasyarakatan Kelas IIA Tanjung Raja.
The Impact of Lean Management Implementation on Inpatient Discharge Prescription Services at Pertamina Central Hospital
Authors: Hermawati Ajitya Kurnia , Kristin Erna , Firman Firman
Published: September 2024

Background: The lead time of inpatient discharge prescription services affects the overall discharge process. In 2022, lead times at Pertamina Central Hospital's Inpatient Pharmacy varied, requiring continuous efforts to meet target times and avoid disrupting discharge plans. This research aims to evaluate the impact of lean management on reducing these lead times. Methods: The study employs a combined quantitative and qualitative research design with an action research approach. It was conducted from March 4 to May 8, 2023, involving pharmacists, pharmaceutical technical personnel, compounders, and pharmacy couriers. Data analysis included measuring lead time changes pre- and post-lean management implementation and narrative analysis of qualitative findings. Results: After implementing lean management, the lead time for non-compounded prescriptions decreased from 42.6 to 25 minutes, with value added ratio (VAR) increasing from 18.9% to 27%. For compounded prescriptions, lead time dropped from 67 to 45.7 minutes, and VAR rose from 25.2% to 37.9%. The Mann-Whitney U test confirmed the significant difference in average lead time. Conclusion: The implementation of lean management in inpatient discharge prescription services has been proven to improve lead time and increase process efficiency (VAR).
Vida y muerte en Huataviro: estudio de un pueblo arqueológico en Imbabura, Ecuador.
Authors: Rosero Hidalgo Monserratte
Published: September 2024

El presente artículo aborda la detección de indicadores de desigualdad social en la sociedadheterárquica del país Caranqui, con especial enfoque en el sitio Huataviro. Este análisis se llevaa cabo a través del estudio de isótopos estables (δ¹³C/δ¹⁵N), la clasificación formal de cerámicacorrespondiente a los ajuares funerarios de investigaciones del 2009-2010, así como los análisisosteológicos respectivos. A pesar de que comúnmente se asocian los montículos circulares uovalados con propósitos funerarios, el montículo rectangular de Huataviro ha revelado unaconexión significativa entre esta estructura y sus prácticas funerarias. Es importante señalarque, a pesar de que las tumbas con una mayor diversidad de ajuares funerarios en Huataviro hansido objeto de atención por parte de varios investigadores, se destaca que el montículo alberga adiversos individuos, siendo especialmente notable el predominio de individuos subadultos según losanálisis osteológicos realizados por Torres (2023a) en su informe final inédito. En el contexto dela investigación, se llevó a cabo un análisis de la vida y muerte de esta población, considerando elanálisis de isótopos estables (δ¹³C/δ¹⁵N) y ajuares funerarios para sugerir que diversos indicadoresde desigualdad social experimentaron cambios a lo largo del uso del montículo, respaldando asíla noción de una sociedad heterárquica. En resumen, el estudio profundiza en la complejidad dela sociedad Caranqui, enfatizando la importancia de abordar dimensiones arqueométricas paracomprender tanto su estructura social como sus prácticas funerarias.
Una comparación de los centros imperiales incas de Tomebamba y Caranqui: ¿Cambios de latitud, cambios de actitud?
Authors: L. Bray Tamara
Published: September 2024

La zona más septentrional del Tawantinsuyu, que constituyó la frontera imperial a finales delsiglo XV, corresponde al actual país del Ecuador. Aunque fue el último sector en incorporarseal imperio, la región y su gente jugaron un papel destacado en la historia del imperio inca,particularmente para el último gobernante indiscutible, Huayna Cápac y su hijo Atahualpa. Eneste artículo, ofrezco una mirada comparativa a la arqueología de los centros imperiales realesde Tomebamba y Caranqui, reflexionando sobre la ubicación de los sitios en el contexto delpaisaje local, los elementos arquitectónicos presentes y la disposición física de cada uno. Aunquelos dos sitios representan momentos diferentes en la historia del avance inca hacia el norte, sucomparación sirve para iluminar cómo las estrategias materiales del Imperio pueden haber sidoempaquetadas, secuenciadas y modificadas para adaptarse a las circunstancias locales.
Relaciones interculturales, perfiles políticos y la construcción de lo valioso en el norte de Esmeraldas: un acercamiento etnográfico
Authors: Yépez Montúfar Jeanneth Alexandra
Published: September 2024

Para las personas Chachi y Afroecuatorianas del Cayapas, la configuración de lo moralmente valioso se va construyendo conforme a una serie de experiencias frente a las cuales la vinculación del self - como construcción del sí mismo, - con el inconsciente colectivo - como proveedor de la materia prima arquetípica para la aprehensión del entorno -, provocan acciones con miras a prosperar política, ética y económicamente. De aquí que, las moralidades, cual repertorios de acción y gramáticas de construcción de lo valioso, puedan también transformarse en acciones económicas y decisiones sobre el entorno de gran densidad y peso político.En este trabajo se explora la interculturalidad a la manera de convergencias interétnicas contextualizadas; la reactualización constante de la ancestralidad del territorio, como categoría que coloca en interacción componentes religiosos, económicos y organizacionales, que dotan de sentidos diversos a las decisiones adoptadas por los sujetos transformados en hombres y mujeres de la política.
Educação Popular x Educação Cristã Libertadora
Authors: Thomé Adriana , Uzcategui Francisco Javier Díaz , Mesquida Peri
Published: September 2024

O artigo objetiva apresentar a relação entre a Educação Popular e a Educação Cristã Libertadora sob a abordagem de Paulo Freire e José Comblin. Para tal compilação, será apresentada abordagens pedagógicas na Educação Popular e na Educação Cristã Libertadora e como se dá o processo de libertação na abordagem de Freire e Comblin. A pergunta norteadora da pesquisa é: Qual a relação entre a Educação Popular e a Educação Cristã libertadora na abordagem de Freire e Comblin? O aporte teórico está centrado em Paulo Freire (2006; 2011; 2018; 2019), Comblin (1988; 1998a; 2009), Preiswerk (1995; 1996; 1997), Gadotti (1996; 1988), Mesquida (2016); Gramsci (2014); Libanio (1987); Brandão (2002); Streck (2006). O método utilizado para o desenvolvimento do estudo foi a hermenêutica fenomenológica, com abordagem qualitativa. Os resultados apontaram que o processo de educação popular busca promover a conscientização, autonomia e libertação do indivíduo, enquanto a Educação Cristã Libertadora tem o mesmo objetivo, mas é motivada pela fé para desenvolver ações no campo da Educação Popular.
Координационное соединение меди(II) с производным изоникотиногидразида
Authors: Фоменко Я.С. , Бакаев И.В. , Седых Е.С. , Абрамов П.А. , Махмуди Г. , Гущин А.Л.
Published: September 2024

При взаимодействии (E)-N'-(пиридин-2-илметилен)изоникотиногидразида (L) с CuCl2·2H2O в этаноле происходит образование комплексного соединения состава {[CuCl(L)]·DMF}n. Полученное соединение охарактеризовано с помощью элементного анализа и ИК спектроскопии; его кристаллическая структура определена посредством рентгеноструктурного анализа. Соединение имеет полимерное строение и состоит из фрагментов {CuCl(L)}, связанных в зигзагообразные цепочки за счет координации пиридинового атома азота лиганда L одного фрагмента к атому меди соседнего фрагмента. Ион меди имеет искаженное квадратно-пирамидальное координационное окружение (∠NCuO = 155.71° и ∠NCuCl = 101.16°). Проведены квантово-химические расчеты в рамках теории функционала плотности для элементарной ячейки, содержащей четыре фрагмента {[Cu(L)Cl]·DMF}; проанализирована электронная структура и построены диаграммы зонной структуры и плотности состояний. Выявлено отсутствие запрещенной зоны: значение энергии уровня Ферми практически совпадает с высшей занятой орбиталью кристалла (ВЗОК) и составляет –5.733 эВ. Состав ВЗОК и низшей свободной орбитали кристалла (НСОК) аналогичный, однако вклад p-орбиталей органического лиганда для НСОК выше. Значения лапласиана электронной плотности критических точек на связях Cu—N, Cu—Cl и Cu—O указывают на промежуточный тип связи с доминирующим ионным характером.
Respuesta de Dos Variedades de Pepino (Cucumis sativus L.) al Silicio y Cloro Aplicados en Casa Sombra
Authors: Cázarez-Flores Luz Llarely , Partida-Ruvalcaba Leopoldo , Velázquez-Alcaraz Teresa de Jesús , Zazueta-Torres Norma Delia , Yáñez-Juárez Moisés Gilberto , Angulo-Castro Azareel , Díaz-Valdés Tomás
Published: September 2024

El crecimiento de plantas, mayor rendimiento y calidad de frutos, son efectos positivos debido a la absorción de silicio (Si) y cloro (Cl), que contribuye a mitigar el estrés por factores bióticos o abióticos y recuperar el crecimiento de las plantas. El objetivo de la presente investigación fue conocer el efecto que producen las dosis de Si o Cl en variables morfométricas, calidad de producción y rendimiento del cultivo de pepino. Se aplicó un diseño de bloques completos al azar, cuatro repeticiones y diez tratamientos en plántulas: seis dosis de 20, 30 y 50 mg L-1 de Si o Cl, tres dosis con la relación volumen:volumen (v:v) de 20:20, 30:30 y 50:50 mg L-1 Si:Cl, más el testigo. En plantas trasplantadas en suelo, ya con cinco hojas verdaderas, los tratamientos fueron nueve: seis dosis de 20, 30 y 50 mg L-1 de Si o Cl, dos con la relación v:v de 20:20 y 30:30 mg L-1 Si:Cl, y el testigo. En plántulas de pepino ˈpickleˈ, la dosis alta de Cl fue más eficaz para incrementar el verdor de hojas y longitud del tallo; el tamaño de hojas fue superior en plántulas con la dosis alta de Si; mientras que las bajas dosis de Cl o Si ocasionaron mayor peso seco de raíces. En el cultivar ˈModanˈ el verdor no varió, la longitud del tallo fue superior con la dosis intermedia de Si, mientras que el tamaño de hojas se expresó mejor en plantas con la menor dosis de Si. Así que quizás la mayor cantidad de raíces, el contenido de clorofila y el área foliar influyeron para que el rendimiento más alto se expresara donde se fertilizó con Si o Cl, así como para que mejoraran la firmeza, SST y °Brix de los frutos.
Estimación de Variables Biofísicas en Alfalfa (Medicago sativa L.) Mediante Información Espectral y Modelos de Regresión Lineal Simple
Authors: Varela-de Gante Sergio Antonio , Bolaños-González Martín A. , Salvador-Castillo José Manuel , Barrios-Díaz Juan Manuel , Pérez-Marroquín Guillermo Jesuita
Published: September 2024

La fracción de cobertura vegetal (FCV) y el índice de área foliar (IAF) son variables biofísicas relacionadas estrechamente con la tasa de evapotranspiración de los cultivos y su producción de biomasa. A pesar de su importancia, usualmente no se miden de manera directa debido al tiempo invertido y costo; sin embargo, se pueden estimar a gran escala y en tiempo casi real mediante información espectral captada en imágenes de satélite, pero esto requiere de su validación a nivel de campo. Se desarrollaron y validaron modelos de regresión lineal simple utilizando 13 índices de vegetación (IV) relacionados con el IAF y la FCV en alfalfa (Medicago sativa). Se usaron tres fuentes de información espectral: (i) La reflectancia para derivar los IV; (ii) fotografías digitales procesadas con Canopeo para estimar la FCV; y (iii) mediciones del IAF utilizando un ceptómetro. Se realizaron seis muestreos de campo entre marzo y junio de 2020, en cuatro parcelas de alfalfa situadas en Palmar de Bravo, Puebla, México. Para evaluar cada IV, se utilizó el coeficiente de determinación (R2) y la raíz del cuadrado medio del error (RCME). Se encontró que el IV más apropiado para estimar la FCV fue el VIgreen (Green Vegetation Index, R2 = 0.987 y RCME = 0.093). En el caso del IAF, el IV que presentó el mejor desempeño fue el Normalized Dif ference Vegetation Index (NDVI), R2 = 0.935 y RCME = 0.746). Los resultados mostraron la aptitud y utilidad práctica de la información espectral para estimar las variables biofísicas en el cultivo de alfalfa y su monitoreo.
Calidad de Clases de Tierras Local en la Subcuenca Ganadera Chapala Porción Michoacán
Authors: Reyes-Chávez Peter Paul , Cruz-Cárdenas Gustavo , Pensado-Leglise Mario del Roble , Silva-García José Teodoro
Published: September 2024

El impacto de la ganadería en el medio ambiente ocasiona modificaciones en diversos factores, que afectan la calidad del suelo. Por tanto, el objetivo de este estudio es conocer la calidad de las clases de tierras local con y sin pastoreo a través de sus propiedades físicas y químicas. La metodología consistió en recolectar muestras de suelos con pastoreo de ganado y en áreas que se han conservado libres de ganado. Se evaluaron 14 variables fisicoquímicas. Adicionalmente se recolectó información del saber local del suelo por los ganaderos a través de entrevistas. Se realizó un análisis de varianza para identificar diferencias y similitudes entre clases de tierra local y uso de suelo. Se aplicó el análisis de componentes principales para encontrar variables más representativas, para posteriormente realizar un agrupamiento por similitudes entre los sitios de muestreo, además, se les aplicó el subíndice de uso sustentable del suelo. Los entrevistados reconocen tres clases de tierra: Barro, Charanda y Tierra Café. El análisis de varianza mostró que las variables calcio (Ca), capacidad de intercambio catiónico, densidad aparente, magnesio (Mg), materia orgánica y fosforo (P) tuvieron diferencia (p-value < 0.05) entre clases de tierra local y uso de suelo. El análisis multivariado determino tres grupos y calidad de suelos se definen como marginal, sensible y aceptable, la Tierra Café fue la de mayor calidad y es de uso permanente para la ganadería.
Requerimiento hídrico, coeficiente de cultivo y productividad de pasto híbrido Convert 330 (brachiaria sp) en un clima semiárido cálido de México
Authors: López-Avendaño Jesús Enrique , López-Inzunza Hugo de Jesús , Tirado-Ramírez Martín Abraham , Estrada-Acosta Mitzi Dayanira , Martínez-Gallardo José Ángel
Published: September 2024

La región central del estado de Sinaloa (México) en el noroeste mexicano, se caracteriza por un clima semiárido caálido donde la precipitación es insuficiente para el desarrollo adecuado de algunas especies vegetales introducidas, como las correspondientes al género Brachiaria y por otro lado, a pesar del avance tecnológico en el desarrollo de sensores, es escaso el acceso de los productores a información meteorológica suficiente; el objetivo del presente trabajo consistió en determinar el requerimiento hídrico, coeficiente de cultivo y productividad del pasto híbrido Convert 330 (Brachiaria sp) en un clima semiárido cálido de México, utilizando el método FAO56 con datos medidos y datos limitados; se utilizó una estación meteorológica para medir los parámetros climáticos, y se aplicó el método FAO56 con kc dual para estimar la evapotranspiración de cultivo bajo condiciones no estándar, y posteriormente, la productividad del agua. El consumo de agua estimado para el pasto Convert 330 en clima semiárido cálido del noroeste de México fue de 1,849 mm con datos medidos y 1,973.5 mm con datos limitados; el análisis estadístico arrojó un coeficiente de correlación (r) de 0.96, coeficiente d concordancia de Willmott (d) de 0.90, RMSE de 0.694 mm d-1, BIAS=0.380 mm d-1 y un coeficiente de eficiencia de Nash-Sutcliffe (EF) de 0.98. Los valores de kc obtenidos fueron de 0.49,1.11 y 1.04 paras las etapas inicial, media y final, respectivamente; la productividad del agua (EUA) fue de 2.666 kg m-3 para forraje verde  y 0.726 kg m-3 para materia seca; asimismo, se requirieron 375.1 y 1,378 L kg-1 para la producción de forraje verde y materia seca, respectivamente. Asimismo, se concluye que, aunque la estimación de la ETc con datos limitados sobrestimó en un 6.7% la ETc con datos medidos, la estadística muestra que es confiable el procedimiento.
Glomeromycotina Guild Spore Abundance Correlates with Soil Organic Carbon in Homegardens and Seasonal Forests in Yucatan, Mexico
Authors: Manrique-Caamal Sergio , Estrada-Medina Héctor , Jiménez-Osornio Juan J. , Allen Michael F. , Allen Edith B. , Barrientos-Medina Roberto C. , Álvarez-Rivera Oscar O.
Published: September 2024

Soil organic carbon (SOC) is a key indicator of soil health. Arbuscular mycorrhizal fungi (AMF) have been shown to increase SOC and respond to SOC content, which in turn, is directly related to land use. We investigated the relationships between land use and Glomeromycotina AMF spore abundance of two AMF functional guilds, rhizophilic (having high root internal AMF hyphal length) and edaphophilic (with high external soil hyphal length) to SOC content in agroforestry systems (AS) and seasonal forest (SF) of Tzucacab, Yucatan, Mexico. Our results indicate greater SOC values in SF than AS of the same age with a trend of increasing SOC with system age. Rhizophilic spore abundance correlated with SOC content, showing dif ferences among land uses and system ages but not between seasons. No relationship was observed between edaphophilic spore abundance to SOC. Thus, we suggest that Glomeromicotyna spore abundance (measured at any time of the year) of rhizophilic fungi could be a good indicator of SOC and, a tool to monitor soil health due to land use changes.
Silicio como bioestimulante en el cultivo de cacao (Theobroma cacao L.) y agente de control biológico de Moniliophthora roreri
Authors: Torres-Rodriguez Juan Antonio , Ramos-Remache Rommel Arturo , Reyes-Pérez Juan José , Quinatoa-Lozada Eduardo Fabian , Rivas-García Tomás
Published: September 2024

El cultivo del cacao es muy susceptible a deficiencias nutrimentales y a la moniliasis ocasionada por el fitopatógeno Moniliophthora roreri. Una de las alternativas a los productos químicos sintéticos son los compuestos a base de silicio (Si). En la presente investigación se evaluó el efecto del silicio como bioestimulante en el cultivo de cacao (Theobroma cacao L.) y agente de control biológico de Moniliophthora roreri. En el experimento se utilizaron cincos tratamientos de Si: T1 (4. 00 kg ha-1), T2 (3.00 kg ha-1), T3 (2.00 kg ha-1) y T4 (1.5 kg ha-1) y un tratamiento control (sin aplicación). Se determinó los indicadores de producción, número de mazorca sanas, peso fresco y seco de almendras, peso seco de 100 almendras y el rendimiento del cultivo. Además, de la incidencia y severidad de la enfermedad a los 60, 120 y 180 días después de la aplicación del Si y la eficiencia de los tratamientos. Respecto a las variables de producción el mejor tratamiento fue el T1. Todos los tratamientos de Si fueron superiores al control en las variables de producción. El mayor rendimiento se obtuvo con el tratamiento T1 con 2.23 t ha-1. El mejor tratamiento fue T1 en el control de la enfermedad, disminuyó la incidencia y la severidad en más del 50%. El tratamiento control T5 sin aplicación de Si, obtuvo la mayor incidencia y severidad con 62.12% y 4.50 respectivamente, además, de los menores resultados en las variables de producción y rendimiento del cultivo con 0,78 t ha-1.
Biofortificación de Frijol (Phaseolus vulgaris L.) Variedad Verdín con Quelato y Sulfato de Hierro
Authors: De la Cruz Lázaro Efraín , W. Félix Jean , Sánchez-Chávez Esteban , Tosquy-Valle Oscar , Preciado-Rangel Pablo , Márquez-Quiroz Cesar
Published: September 2024

La biofortificación es el proceso por medio del cual se puede incrementar el contenido de nutrientes en la parte comestible de las plantas cultivadas. El objetivo fue determinar el efecto del quelato y sulfato de hierro aplicado de forma foliar y edáfica en el contenido mineral, nutricional, y compuestos bioactivos del grano de frijol variedad Verdín. Se aplicaron las dosis de 0, 25, 50 y 100 mM de quelato de hierro foliar y dosis de 0, 0.25 y 0.50 g por planta de sulfato de hierro edáfico, lo que origino 12 tratamientos que se evaluaron bajo un diseño de bloques al azar en arreglo factorial 4×3 donde el primer factor fueron las dosis foliares y el segundo factor las dosis edáficas. En el grano se determinó el contenido de hierro, zinc, manganeso, níquel, calcio, potasio, cenizas, proteínas, grasas, fibra, fenoles totales, flavonoides, antocianinas y capacidad antioxidante. Las aplicaciones individuales de hierro edáfico y foliar tuvieron efectos significativos (P < 0.0001), presentando la aplicación edáfica de 0.50 g de hierro los mayores incrementos de 17.38%, 20.69%, 10.93%, 5.82% y 2.84% del contenido de hierro, níquel, proteína, fibra cruda y capacidad antioxidante con respecto a la dosis sin hierro edáfico. Pero se observaron efectos antagónicos en el contenido de zinc y grasas al incrementar la dosis de hierro. La aplicación simultánea de hierro edáfico y foliar presentó diferencias estadísticas (P ≤ 0.05), presentando el mayor incremento de hierro (75.91%), níquel (30.61%), cenizas (114.69%), proteína (18.14%) y fibra cruda (15.34%) la aplicación de 100 mM foliar y 0.50 g edáfico con respecto a la combinación sin hierro. La aplicación combinada de hierro puede ser benéfica para aumentar el contenido mineral, nutricional y algunos compuestos bioactivos; pero se debe tener cuidado para minimizar los efectos negativos en otros nutrientes y propiedades del grano.
Ef fect of a Marine Bacterium and Vermicompost on Antioxidant Properties and Fruit Quality of Solanum lycopersicum L.
Authors: Lara-Capistrán Liliana , Reyes Ana G. , Murillo-Amador Bernardo , Aquino-Bolaño Elia Nora , Hernández-Adame Luis , Hernández-Montiel Luis Guillermo
Published: September 2024

The present study aimed to evaluate caporal hybrid tomatoes’ antioxidant capacity and fruit quality under greenhouse conditions when applying a combination of a marine bacteria (Stenotrophomonas rhizophila) and dif ferent doses of vermicompost. A random block design was used, with 12 treatments: Inorganic fertilized (IF, control treatment), S. rhizophila (Sr), 60, 150, and 300 g of vermicompost (V), and the combination of Sr+V (Sr+V60, Sr+V150, and Sr+V300), with 20 repetitions each. Plant height, stem diameter, number of flowers, number of fruits, colony-forming units (CFU), polar and equatorial diameter of the fruit, fruit firmness, titratable acidity, total soluble solids (TSS), lycopene, vitamin C, fruit weight and yield per plant were evaluated. These were analysed with the Statistical Package and the Tukey mean test with a significance level of 0.05%. The analysis showed significant dif ferences for all the variables evaluated with Sr+V300 as the best treatment. It is concluded that the use of bacterium isolated from marine environments in combination with vermicompost favors the antioxidant contents and fruit yield being an alternative use in this vegetable.