REDEL. Revista Granmense de Desarrollo Local
La Revista Granmense de Desarrollo Local (REDEL) surge como continuadora de la Revista Cubana de Desarrollo Local, con la finalidad de potenciar prioritariamente la producción científica y académica de investigadores y docentes que marcan el desarrollo de nuestros tiempos; tiene como misión, publicar artículos científicos en el ámbito del Desarrollo Local, enfocado este desde sus múltiples aristas temáticas. Se edita mediante el sistema de Publicación Continua. ISSN: 2664-3065 RNPS: 2448
Website to promote the formation of values in students of the Labor Education career
The subject of values has been extensively investigated from different sciences and areas of knowledge. This article deals with the application of informatics for the formation of civic values in higher education students. It aimed to propose a website that promotes the formation of these values in third-year students of the Bachelor’s degree in Labor Education at Granma University. Several research methods were used: at the theoretical level, inductive-deductive and analytical-synthetic; at the empirical level, observation, survey, interview and documentary analysis; in the statistical-mathematical, descriptive statistics. All allowed the website design and data processing necessary for research. The computer product provided favored work with the formation of citizen values in third-year students of the Bachelor’s degree in Labor Education from Granma University.
Citizen Education; formation of values; website; Labor Education.
The Cuban cooperative movement and its foundation in the ideological legacy of Fidel Castro Ruz
To carry out the socialist transformation of Cuban agriculture and to fulfill one of the issues raised in the Moncada Program, Commander in Chief Fidel Castro granted peasants a portion of the lands confiscated from large landowners and, years later, invited them to join the agricultural cooperatives that were established to further integrate them into the process of building socialism and strengthening the worker-peasant alliance. This article aims to reflect on the development of the Cuban cooperative movement across its different stages, using Fidelist thought as the guiding thread. For this purpose, the universal dialectical materialist theoretical method and its specific methods were used: the unity of the logical and the historical, analysis and synthesis, as well as scientific abstractions. These methods were employed to analyze, in a periodized manner, the development of the cooperative process in Cuba and to understand that, under the leadership of Fidel Castro, the Cuban Revolution found in agricultural cooperativism a key model of cooperation, effective for modernizing crop production and for the collective use of land.
agricultural cooperatives; agricultural development; Fidel Castro; Cuban cooperative movement.
The use of financial software in economic analysis and business decision-making
The use of technological tools in financial management has become a determining factor in improving the efficiency of economic analysis and the quality of business decisions in competitive environments. The objective of this article is to analyze the influence of financial software on economic analysis and business decision-making, considering its impact on the objectivity, precision, and sustainability of organizational management. The research was conducted using a mixed-methods approach, and the data were processed using descriptive statistics and correlation analysis techniques, which allowed for the identification of a significant relationship between the level of financial software use and the quality of business decisions. The results showed that organizations that systematically use these tools exhibit a higher level of efficiency in economic evaluation, a reduction in financial risk, and more well-founded decision-making compared to those that rely on traditional methods. Additionally, limitations associated with staff training and resistance to organizational change were identified, which affect the full utilization of these technologies. It is concluded that financial software constitutes an indispensable strategic support for economic analysis and business decision-making, provided it is integrated with sound managerial judgment and appropriate organizational processes.
financial software; economic analysis; decision-making; business management; financial technology
Incidence of parental migration in primary school students: an advisory program for psycho-educational specialists
Parental migration represents a social phenomenon of growing impact in the Cuban educational context, especially among primary school students. The study was carried out in the municipality of Cueto, Holguín province, where significant family transformations associated with migratory processes were observed. The article's objective was to present the results of the advisory program, conducted by the Municipality of Cueto's Diagnosis and Guidance Center, which aimed to prepare school psycho-educational specialists to address the impact of parental migration on the learning of primary school students. The program, structured in six sessions, helped strengthen professional competencies, highlight the educational impact of parental migration, and systematize institutional experiences. The results confirmed that the advisory program contributed to improving psycho-educational support in contexts of family vulnerability, positioning the school psycho-educational specialist as a key agent in educational transformation.
The convergence of economic cycles in Latin America: a critical review of the scientific literature
The article analyzed the current state of research on the convergence of economic cycles in Latin America through a critical review of the relevant literature. The objective was to determine whether economic cycles in the region have tended to synchronize over time and what factors drive such synchronization. To this end, a systematic review methodology was applied, using academic search platforms, databases, and directories. Inclusion criteria were established: publication from 2020 onward, availability in Spanish or English, scientific article format, empirical focus, and thematic relevance; and exclusion criteria: length under four pages, thesis or book format, and duplicates. The analysis shows that evidence of a common economic cycle in Latin America is scarce. Although episodes of subregional convergence are observed, synchronization varies between countries and depends heavily on international trade. Trade flows carry more weight than financial ones in short-term cyclical comovements, and the region maintains a strong dependence on external shocks, especially since the 2008 crisis. In conclusion, there is no clear or consistent trend towards cyclical convergence across the entire region.
Latin America; economic cycles; cyclical convergence; cycle synchronization.
Pedagogical communication as a tool for the teacher
The study of communication is extremely important for all those who are going to develop an educational task. This is so because, throughout their pedagogical activity, teachers establish constant communication with students. The purpose of this article is to reflect on communication as a tool that teachers can use successfully in their professional performance. To this end, philosophical, sociological, psychological and pedagogical foundations were taken into consideration, as well as theoretical (analysis-synthesis, induction-deduction and historical-logical) and empirical methods, such as the critical analysis of documents. The research was important because it made possible the analysis of communication through its functions, styles, mechanisms and skills, considering it as an essential element to exert a positive influence between teachers and students, which resulted in the successful management of the teaching-educational process.
teaching; pedagogical communication; teaching-educational process; professional performance.
Independent work in the training of Primary Education professionals
The article reflects on the theoretical-methodological and practical conceptions of independent work, in order to provide teachers with a basis to adequately apply the orientation, execution, control and evaluation of independent work from the perspective of blended learning in the third year of the course for workers in the Bachelor's Degree in Primary Education, in the subject Didactics of Cuban History. For this purpose, theoretical methods were used, such as the analysis and synthesis of the main criteria of the consulted authors. Also, empirical and statistical methods were used to verify how the problem manifested itself in the educational practice. As main results, the theoretical review of the different elements that interact in independent work and the alternatives to deal with its different typologies were offered.
independent work; vocational training; primary education; blended learning.
Anxiety and temporomandibular disorders: a brief approach to their study for a better quality of life
Anxiety and depression are closely related to the appearance and evolution of temporomandibular disorders. In particular, dental anxiety nowadays constitutes a psychopathological problem of high prevalence in Latin American and Caribbean countries, with importance in the dental area, particularly with temporomandibular disorders. The article analyzed the relationship between anxiety and temporomandibular disorders in order to promote strategies that contribute to achieve a better quality of life in people. Theoretical methods (analysis-synthesis and induction-deduction) and empirical methods (analysis and critique of sources as well as scientific observation) were used. Emphasis was placed on a group of psychological references for the diagnosis and treatment of temporomandibular disorders, as well as on the need to promote strategies for the prevention and management of anxiety. As a result, it was obtained that the bidirectional interaction anxiety-temporomandibular treatment generates a negative cycle if the treatment is not systematic; that the early identification of anxiety symptoms and their preventive treatment reduce the risk of developing temporomandibular disorders in predisposed individuals, which improves the quality of life and reduces the burden of oral and psychological disorders; the implementation of strategies for the treatment of anxiety associated with temporomandibular disorders requires the systemic integration of the multidisciplinary team for the diagnosis, orientation, treatment and evolution of patients.
dental anxiety; depression; temporomandibular disorders; dentistry.
Developer learning from the process of improvement of the National Education System
The teaching-learning process from a developmental perspective acquires great significance in the current context, as it stimulates students' motivation for learning and training, in general, as an integrated system; hence, a review article is presented whose purpose is to review some characteristics to consider in developing learning based on the dimensions of developmental learning; it constitutes a result of the research project "The Improvement of the Pedagogical Process in Education in the Manzanillo Municipality," for which theoretical methods such as analytical-synthetic, inductive-deductive, and document analysis were used. In general, it is concluded that this learning is of great importance in leading students toward a solid and meaningful mastery of the content, distancing them from academic failure and apathy toward educational activity. In this way, the renewal of approaches and modifications in pedagogical practice are promoted, attending to the demands of the Third Improvement Process of the National Education System.
teaching; meaningful, developer learning
Strategy for the socio-humanistic training of medical students at the Military Hospital of Holguín
Education in the socio-humanistic field for medical students is considered an urgent need in view of the current challenges of building a more equitable and inclusive society. The objective of this article is to propose a strategy that contributes to the socio-humanist education of medical students of the Military Hospital of the Army Dr. Fermín Valdés Domínguez, Cuba. A qualitative research was carried out, based on theoretical (historical-logical, analysis-synthesis and induction-deduction) and empirical (documentary analysis) methods. The choice of these methods allowed for a qualitative analysis and interpretation of the content presented, in addition to facilitating the application of the laws and principles of dialectical materialism, including the systemic structural-functional approach. In spite of the fact that the curricula of the medical career in Cuba have integrated in a transversal way socio-humanistic elements, the research shows that there are still deficiencies in their effective implementation. As a proposal to address this situation, a strategy was designed to strengthen socio-humanistic training in medical students, not only as a curricular requirement, but as an integral and formative process that influences all aspects of their professional and personal development
medical students; socio-humanistic education; formative strategy; values.
Methodology for the treatment of mathematical culture during initial teacher training
The development of mathematical culture allows the teacher of this specialty to acquire valuable arguments to turn his teaching into a pleasant adventure, enriching the cultural heritage of his students. In the present article, a methodology to dynamize the integration of the dimensions that structure the mathematical culture during the didactic treatment of the mathematical knowledge system is presented for the readers' consideration. Analysis-synthesis, induction-deduction, modeling and descriptive and inferential statistics were used. The elaborated methodology takes advantage of the genetic and structural relationships that, with disciplinary and interdisciplinary character, occur between mathematical and non-mathematical cognitive systems, in order to favor the mathematical culture in the students of the specialty from the teaching of mathematical disciplines.
mathematical culture; educational teaching process; initial training; mathematical disciplines.
Workplace well-being in human talent productivity from the perspective of organizational psychology
Workplace well-being has gained increasing relevance as a determining factor in employee performance, especially from the perspective of organizational psychology. This study analyzed how the psychosocial conditions of the work environment directly influenced the productivity of human talent within private companies. The main objective was to analyze the impact of well-being at work on the productivity of human talent from the perspective of organizational psychology. A quantitative approach with a non-experimental, correlational design was applied through surveys based on the Likert scale to a representative sample of employees in companies in Quevedo, Ecuador. The results showed that high levels of well-being at work are positively associated with greater efficiency, commitment and individual performance. In addition, the influence of organizational practices oriented to the emotional care of personnel in strengthening productivity was highlighted. It was concluded that an adequate management of labor welfare contributes significantly to the development of human talent, and it was therefore suggested that sustainable welfare strategies be integrated into corporate policies.
labor welfare; productivity; organizational psychology; job satisfaction; human talent.
Training of professional interests in the students of annex 1 of Technical Vocational Education
Professional orientation is a process that needs to be strengthened in vocational students of Technical and Professional Education, with special interest in those trades that society demands with greater emphasis. In view of this imperative, the article presents a proposal of orientation workshops for the development of professional interests in trade students of Annex 1, belonging to the educational institution Enrique Rosa Pérez Polytechnic Center. Theoretical (analytical-synthetic, modeling), empirical (observation, interview, documentary analysis) and statistical (descriptive and inferential statistics) methods were used. The proposal was a concrete response to the contradiction between the direction of the professional orientation process and the demands of the students' work performance. Likewise, it contributed to the psycho-pedagogical preparation of the educators to positively influence the development of the professional interests of the students, in order to guarantee the obtaining of the necessary information about the different trades to carry out a successful work activity. The use of field experimentation made it possible to demonstrate the feasibility and effectiveness of the proposed workshops and made their application advisable.
Vocational Technical Education; career guidance; orientation workshops; career interests.
Senior Family Medicine clinical educational preparation for the early detection of lung cancer
The course and training programs on early detection of lung cancer, its challenges and prevention are of vital importance for the training of specialists and residents of Family Medicine since they provide them with educational tools that have an impact on a satisfactory professional performance in the fight against the scourge of lung cancer. The article aims at proposing a system of superior clinical educational preparation programs aimed at improving the professional performance of specialists and residents in Family Medicine for the early detection of lung cancer, as demanded by the current Cuban society. Theoretical methods (historical-logical, analysis-synthesis, induction-deduction and systemic-structural-functional); empirical (analysis and critique of sources, scientific observation, survey, interview, users' criteria) and mathematical statistics (descriptive and inferential statistics) were used. The relationship between professional performance, the educational preparation of Family Medicine specialists and residents and the early detection of lung cancer was characterized, from which preparatory courses and training programs on its prevention are designed.
higher clinical educational preparation; family medicine; lung cancer; professional performance.
Case report of critical aortic coarctation
Aortic coarctation is a potentially critical congenital heart disease, in which there is a narrowing of the lumen of the descending aorta. This condition causes, depending on its severity, inadequate blood flow to the systemic circulation so that, on certain occasions, the flow to the portions irrigated by the descending aorta is determined by the presence of the ductus arteriosus. The aim of this article is to describe the clinical presentation of a newborn with a diagnosis of critical aortic coarctation from the current medical position. For this purpose, the clinical case of a patient treated in the perinatal intensive care unit of the Fe del Valle Ramos Hospital in Manzanillo, Granma, was presented. The clinical, echographic and electrical diagnosis of a critical heart disease was made in secondary health care and his subsequent optimal referral to the William Soler Pediatric Cardiocenter in Havana, where corrective surgery was performed to restore cardiovascular functionality. For discussion, a review of the literature was carried out using search engines, meta-search engines and databases (Google Scholar, PubMed, Science Direct and Scopus). The relevance and novelty of approaches in the diagnostic and therapeutic approach to aortic coarctation as a sufficiently developed area in the knowledge of medical sciences is confirmed from a literature review based on an information search strategy.
congenital heart disease; cardiac anomalies; congenital cardiovascular defect; aortic coarctation.
“Learning-by-doing community service work”, a project from the Juan Vitalio Acuña Núñez Polytechnic Center
The researched topic synthesized the study and application of practical experiences about the project-based learning method as a facilitator of the integration of contents, their generalization and transfer in real learning contexts, which was intended towards the formation of professional competences in the selected specialties, towards the professional performance of the future medium technician and skilled workers and towards the generation of benefits through the use of good practice methodologies that allowed raising the quality of theoretical-practical learning, as well as executing community service provision tasks. In this sense, the objective of the article was to present the stages and phases for the elaboration of an educational project for learning by doing community service provision tasks. This learning, based on the formation of professional competences and on the generation of benefits that act as a contribution to the development of the community environment, contributes to solve the research problem posed. Theoretical, empirical and statistical methods were used, which made it possible to verify the existing difficulties and to make partial and final evaluations of the fulfillment of the objective, the transformations and impacts achieved. The educational project facilitated the planning and execution of work and teaching activities, in correspondence with the specific objectives proposed, based on the diagnosis and preparation of the participants, as well as the follow-up, the control of the expected results and the preparation of reports, as each stage was developed.
professional competencies; educational project; learning by doing; professional performance.
Quality of life in university students of the Niquero University Chair for the Elderly
The article responded to the research developed from the inadequacies identified in the educational teaching process of the University Chair of the Elderly in Niquero municipality, Granma province, which limit the quality of life of students. The objective of the study was to analyze the results of the diagnosis of the current state of the quality of life of the university students of this chair. The empirical methods used in the research were the analysis of documents, observation and as techniques to obtain information, the interview, the semi-structured survey to students and the WHOQOL quality of life scale in its Whoqol-bref version. Among the fundamental results of the research, the integral and harmonic formation of the personality of the elderly was highlighted as a vital need; as well as the systematic practice of inclusive, attractive and pleasant activities, which allow them to develop their intellectual, physical and spiritual capacity to contribute in this way to raise their quality of life.
older adult; quality of life; university students; motivation.
Risk factors associated with chronic periodontitis in patients of the Edor de los Reyes Polyclinic, Jiguaní
Chronic periodontitis is a very common health problem in humans and knowledge of the risk factors that condition it is of vital importance to control the disease. This article presents a case-control study, with the objective of showing the association of some risk factors with the appearance of chronic periodontitis in 813 patients aged 35-56 years old who were attended in the first quarter of 2024 at the Edor de los Reyes Martínez Arias Polyclinic, belonging to Jiguaní municipality, Granma province. The sample was conformed by 186 patients, 62 cases and 124 controls, respectively. The cross-product ratio (Odds Ratio) was applied to determine the association between the main risk factors and chronic periodontitis, with a reliability of 95 % and a probability of 0,05. The most strongly associated risk factor was dentobacterial plaque, followed by smoking and diabetes mellitus, demonstrating the relationship between these factors and the disease.
Periodontitis; dentobacterial plaque; smoking; diabetes mellitus.
Historical evolution of the teaching-learning process of Physics in pre-university education
The historical study of the educational process is an indispensable way to understand the evolution of pedagogical practices and the transformations that have determined its current state. This article addresses the historical evolution of the teaching-learning process of Physics and the development of scientific culture among pre-university students. To this end, the regularities of each of the defined stages (four) were determined using their corresponding indicators. The central axis of analysis and reflection was the application of the historical-logical method and the qualitative research technique of content analysis. The study allowed for an in-depth examination of the transformations that occurred in each stage, in correspondence with the particular characteristics of pre-university students during the treatment of the content.
content analysis; historical evolution; qualitative research; historical-logical method.
Financial control tools in Quevedo's commercial sector: level of application and challenges
Financial control is essential for business sustainability, especially in highly competitive environments. The article analyzes the level of application of financial control tools in the commercial sector of Quevedo and the challenges faced by companies in their implementation. The research was conducted using a mixed-method approach, applying surveys to 300 commercial enterprises of various sizes and interviews with managers and accountants. Data were processed using statistical techniques and qualitative analysis. The results show that the application of tools such as budgets, cash flow statements, and internal audits is high in medium-sized enterprises but limited in micro-enterprises. Digitalization shows progress, with a predominant use of spreadsheets in small businesses and ERP systems in medium-sized ones. Among the main challenges identified were a lack of training, high implementation costs, and limited financial literacy. It is concluded that company size is a determining factor in the adoption of control mechanisms, and that it is necessary to strengthen training programs and incentives to promote financial modernization in Quevedo's commercial sector.
financial control; commercial sector; Quevedo; digitalization; business training.
Didactic strategy for the teaching and learning of chemical reactions: experiential research
The article addresses the issue of deficiencies in the teaching-learning process of the Chemistry subject at the pre-university level. The study was conducted through experimentation-reflection with 30 10th-grade students from the Roberto Ramírez Delgado Pre-University Institute in the municipality of Niquero, during the 2024-2025 academic year. The objective was to propose a didactic strategy to enhance the learning of exothermic and endothermic chemical reactions among the 10th-grade students at the studied pre-university institute. Research methods from the following levels were employed: theoretical (analytic-synthetic, inductive-deductive, and the systemic-structural-functional approach); empirical (observation, survey, interview, and pedagogical test); and mathematical-statistical (descriptive statistics and percentage calculation). The implementation of the strategy contributed to enabling students to visualize abstract concepts through experimental practice and, in turn, develop aptitudes and skills in the laboratory. Furthermore, it helped develop critical thinking, consideration of different viewpoints, as well as promote self-assessment; all of this fostered students' motivation in studying chemistry and the content of chemical reactions. The main results obtained showed that, once the didactic strategy was applied, the students successfully solved problems, and at the cognitive level, results were higher than those initially presented.
teaching-learning; didactic strategy; experiential research; exothermic reactions; endothermic reactions; chemistry.
Cuando solo faltan algunos días para que termine el año 2025, el Consejo Editorial de la Revista REDEL comparte con ustedes la satisfacción de que esta forme parte de dos nuevos índices (Copernicus y Academic Resource Index), así como de ser una de las revistas firmantes de la Declaración de Dora, todo lo cual le confiere a la publicación una mayor visibilidad, el reconocimiento internacional y el perenne compromiso con la calidad editorial y científica. El año cerró el volumen 9 con sus cuatro números y con un total de 80 artículos; de ellos, 69 (86,25 %) son originales y 11 (13, 75 %) de revisión, lo que cumple con el indicador establecido al respecto y manifiesta un avance en la divulgación de la ciencia. Este ha sido un año de compromiso y nuevos retos que demanda la superación profesional permanente y el fortalecimiento del trabajo en equipo. Como metas para 2026 se trazan el incremento de la visibilidad de la revista con su indexación en nuevas bases de datos, entre ellas Latindex 2.0 y DOAJ, así como el seguimiento a los requisitos establecidos en aras de mantener la calidad demostrada en la publicación de los artículos.
School-family-community integration in the Bachelor of Nursing Degree: social and pedagogical relevance in Cuban medical education
Professional training in medical sciences requires the integration of school, family, and community as fundamental pillars of the educational process. This approach addresses the need to prepare professionals capable of confronting social and health challenges from a humanistic and interdisciplinary perspective. The article aims to analyze the pedagogical experiences developed at the Bayamo Faculty of Medical Sciences that promote the active participation of the family and the community in the training of Nursing graduates, evaluating their impact on student motivation and the social relevance of the programs. A qualitative approach was employed, using semi-structured interviews with students and teachers, participant observation in community projects, and documentary analysis of institutional plans. Methodological triangulation allowed for the validation of findings and ensured scientific rigor. The data revealed that school-family-community integration increased student motivation, facilitated the acquisition of professional competencies linked to real-world contexts, and enhanced the social responsibility of graduates. Limitations related to material and technological resources were identified, requiring innovative strategies and inter-institutional cooperation to overcome them. School-family-community integration constitutes a viable and necessary pedagogical model for enhancing the quality of medical education in Cuba. Its systematization as institutional policy would strengthen the relevance and social impact of professional training.
medical education; community participation; professional training; Bachelor of Nursing.
The technological convergence in the organizational communication management of the Majibacoa Municipal University Center
Technological convergence in the organizational communication management of the Majibacoa Municipal University Center is presented as a key strategy for modernizing internal and external communication processes, through optimal interaction among teachers, students, administrative staff, and the community. This approach integrates digital tools such as collaborative platforms, websites, social media, and content management systems, enabling greater efficiency in the dissemination of information and in decision-making. Furthermore, it strengthens institutional positioning and engagement with the local environment. However, its implementation faces challenges such as the digital divide, the need for training, and secure data management. The article analyzes how technological convergence can transform organizational communication in the university context by implementing actions to overcome its challenges and maximize impact. For this, the research process utilizes theoretical-level methods such as analytical-synthetic and inductive-deductive, as well as empirical-level methods, such as the analysis and critique of sources and observation. It is confirmed that the adoption of these technologies not only improves institutional management but also contributes to local development by promoting a more connected, innovative higher education aligned with the demands of today's digital society. The study offers a reference framework for similar institutions seeking to integrate technology into their communication processes.
Municipal University Center; organizational communication; technological convergence; management.
The Communist Party of Cuba: the superior leading political force of society and the State
The article reflected on the character of the Communist Party of Cuba as the superior leading force for society and the State in the Cuban nation. To this end, references addressing the subject in question were analyzed, and arguments supported by both national and foreign authors were provided. The methods used were analysis-synthesis, induction-deduction, hermeneutics, argumentation, and historical-logical analysis, which made it possible to trace the background of the topic and affirm that the granted condition is due to the historical traditions of the founding of the Cuban nation. In this sense, the article demonstrated that the PCC is a prestigious organization, of high morals, with authority earned through the support of the people; that its aforementioned nature is due to these qualities, and that it defends them by fulfilling the mission bestowed upon it.
communist party; political force; national unity; moral authority.
Response of Vigna unguiculata, L. var. Vigna Yarey from the Tropics to Fitomás E, mycorrhizae and Codafol
To evaluate the response of the cowpea variety Vigna Yarey from the Tropics to the compounds Fitomás E, mycorrhizae, and Codafol, the research was conducted in the self-provisioning area of Cerca Blanca, Bayamo municipality, Granma province. Four treatments were established, each with an area of 28,8 m²: T1 (NPK: 7,5-7-12 at 1 t/ha⁻¹), representing the control treatment; T2 (Codafol: 1,5 l/ha⁻¹); T3 (Fitomás E: 2,0 l/ha⁻¹) and T4 (mycorrhizae: 1 kg/46 kg of seeds). The planting distance used was 0,80 m x 0,10 m, and a completely randomized experimental design was implemented. Plant height, number of pods and grains per plant, 100-seed mass (g), and yield (t/ha⁻¹) were evaluated. The data were processed using the statistical package InfoStat 2017, and Tukey's test was performed for p≤ 0,05. The best results in productive and economic indicators were found with the use of treatment T4 (mycorrhizae: 1 kg/46 kg of seeds), which achieved a yield of 3,22 t ha⁻¹ and a profit that exceeded the control (NPK) by 39,49 %.
cowpea; Fitomás E; Codafol; mycorrhizae; biofertilizers; biostimulants.
Methodology for addressing the content "Adaptation to climate change" in the Natural Sciences subject
Given the constant threat posed by climate change, there is a clear interest in seeking alternatives to mitigate this global warming process, which requires making decisions about measures to address this event. In this sense, the Cuban educational system pays special attention to this issue, in line with the objectives of environmental education. The article aims to evaluate the effectiveness of a methodology for addressing the content "Adaptation to climate change" in the teaching-learning process of the Natural Sciences subject at the Primary education level, with the goal of promoting mastery of this content and the development of environmental values, particularly environmental sensitivity from a holistic perspective. To achieve this objective, methods, techniques, and procedures from the theoretical and empirical levels were combined, along with statistical techniques to process and interpret the data in order to verify the significance of the results obtained. Through a pedagogical experiment, the feasibility of implementing the methodology and its effectiveness were confirmed, in accordance with the transformations driven by the III Educational Improvement for the comprehensive formation of new generations.
climate change; environmental education; Natural Sciences; environmental sensitivity.
Use of Moringa oleifera flour for the development of herbivorous carp fingerlings
The study was conducted at the Base Business Unit Acuipaso, in the municipality of Bartolomé Masó, Granma, with the aim of evaluating the inclusion and productive impact of Moringa oleifera leaf meal on the bioproductive indicators of herbivorous carp (Ctenopharyngodon idella) fingerlings under the conditions of this province. A completely randomized design was used, consisting of 12 floating cages (0.15 m³ each), with 10 fish per cage, four treatments: 0 %, 4 %, 7 %, and 10 %, and three repetitions each. The ration was adjusted weekly based on 4 % of body weight per day, with a frequency of 3 times a day (at 8:00 a.m., 12:00 p.m., and 4:00 p.m.). Data were analyzed using one-way ANOVA and Tukey's test (p<0.05); data normality was checked using the Kolmogorov-Smirnov test, and homogeneity of variance between treatments was evaluated using Bartlett's test. It was concluded that Moringa oleifera leaf meal, due to its chemical composition and low content of secondary metabolites, represents a viable alternative feed for inclusion in fingerling diets. Optimal values were achieved up to 4% in the formulation, where it showed excellent results and demonstrated the best productive contributions. From an economic standpoint, it was also confirmed that its use up to 10 %, as an alternative feed, reduced production costs but resulted in low productive performance during this fingerling stage.
nutrition; moringa; fingerlings; carp; meal.
Fascioliasis in cattle of the Basic Cooperative Production Units in the Bayamo municipality (2021-2023)
Fascioliasis is a parasitic disease with significant economic and zoonotic impact. The objective of this article is to analyze its epizootiological situation and effects in the cattle Basic Cooperative Production Units of the Bayamo municipality during the years 2021, 2022, and January-August 2023. For this purpose, Benedek sedimentation coprology was performed from June to August 2023 on representative samples from the selected populations. Prevalence, focality, and lethality were analyzed among the cooperatives by comparing proportions. Losses were estimated at an 8 % reduction in weight for sick animals, 0.5 kg of milk daily per milking cow, and $82,14 pesos per kilogram of condemned livers, according to authoritative references. The prevalence was 24,46 %; focality 67,56 %; and lethality 8,71 %, respectively. In the Manuel Espinosa, Manuel Pedreira, Roberto Elías, and Camilo Cienfuegos Basic Cooperative Production Units, prevalences were significantly higher than in Francisco Suárez Soa and Batalla de Peralejo (P≤0.01). The differences between totally and partially condemned livers (37,61 % vs. 8,52 %) suggest a high infestation intensity. It was concluded that fasciolosis is a real problem that caused million-dollar losses in the studied livestock sector; this disease was conditioned by edaphoclimatic factors, as well as by deficiencies and violations in management, feeding, water supply, diagnostic management and level, veterinary assistance, and irregularities in the Fasciolosis Control Program. Its solution requires immediate, coordinated, and effective actions by the competent authorities.
cattle; cooperatives; fasciolosis; Bayamo.
Cost-benefit impact on investment decision-making in commercial companies in Quevedo
Investment decision-making is a crucial aspect of business management, as it determines the efficiency of resource allocation and the sustainability of organizations. This article aimed to analyze the impact of cost-benefit analysis on the investment decisions of commercial companies in Quevedo, by identifying its influence on profitability and business competitiveness. The research was conducted using a mixed-methods approach, with a descriptive and correlational design, utilizing structured surveys applied to a representative sample of 120 companies and interviews with managers to complement the interpretation of the data. Statistical analysis identified a significant relationship between the systematic application of cost-benefit analysis and financial results, showing that organizations that use profitability indicators such as the internal rate of return and net present value achieve higher levels of success compared to those that base their decisions on intuition. Likewise, it was evidenced that medium and large companies apply these tools more frequently compared to micro and small enterprises, where limitations related to financial training and the estimation of indirect costs persist. It is concluded that the use of cost-benefit analysis is a key factor for sustainability and business competitiveness in the local context, which is why it is recommended to strengthen technical training and the incorporation of new technologies that enhance the accuracy of evaluations.
cost-benefit; investment decisions; profitability; commercial enterprises; sustainability.