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The purpose of this experimental research was to examine a novel axial heat exchanger featuring swirling air movement over heated tubes. This apparatus is designed with perforated circular baffle plates complemented by rectangular air deflectors operating at different inclination angles. The tubes were arranged in a consistent layout parallel to the longitudinal airflow. The deflector’s heightened air-side turbulence initiates the frenzied motion, escalating the surface heat transfer rate.

The tubes maintained a constant heat flux condition over the surface. In each baffle plate, eight deflectors with identical inclination angles were devised in a reverse position, forming a rotation of air inside a circular duct that held tubes (carrying hot water) which elevated air-side turbulence, thereby enhancing the rate of heat transference on the surface. The baffle plates were equally situated from each other at changing pitch ratios. The Reynolds quantity was preserved in the scope of 16,000–30,000. The performance of the heat exchanger considering pitch ratios and inclination angles was examined.

The research indicates that when examined under similar conditions, an exchanger with a deflector baffle plate shows a strong dependence on the pitch ratio and inclination angle with a mean rise of 0.19 times in thermal enhancement factor at an inclination angle of 30° and a pitch ratio of 1.2 contrasted with an exchanger with segmental baffle plates.

The result shows the dependence of pitch ratio, Reynolds number and inclination on the heat transfer and friction factor rate.

This work aims to demonstrate the feasibility of fully preserving the historical heritage at the same time reordering the cities and their traffic.

This paper describes the sustainable solution designed for the landscape change required and to maintain the bridge integrity by excavating under the pier with the maintenance of traffic during its execution.

It is concluded that the elimination of urban motorways on the surface often leads to the excavation of tunnels under the existing buildings, with little coverage in most of them. This complicates the implementation of burials in cities with an important historical heritage, which must be given conservation priority in the choice of technical solutions.

The Segovia Bridge over the Manzanares River, the oldest bridge in Madrid, was built in the 16th century. With the burial of the M-30 motorway, it has been necessary to build a tunnel immediately under one of the bridge piers, practically without lining between the foundations and the upper slab of the tunnel.

The aim of this paper is to analyse the spillover effects of microcredit on the economy of Ecuador, with a particular focus on its potential as a poverty alleviation mechanism.

To address our research questions, we take into account the distance between cantons (Ecuador’s own administrative distribution) by adopting a spatial autoregressive (SAR) model. To this end, a database will be constructed with macroeconomic information about the country, broken down by canton (administrative division of Ecuador), and in a 2019 cross section, with a total of 1,331 microcredit operations in all 221 of Ecuador’s cantons.

We find a positive effect of microcredit on these neighbouring regions in terms of wealth generation.

We acknowledge that this study is limited to Ecuadorian cantons. Nonetheless, it is crucial to emphasize that focussing on an under-represented developing country like Ecuador adds significant value to the research.

Facilitating access to microcredit is one of the main solutions to address the goals proposed in the sustainable development goals (SDGs).

Microcredit activity contributes to the creation of value and wealth in Ecuador, exerting a spillover effect in neighbouring areas that can generate positive multiplier effects and alleviate poverty. For all of the above reasons, our proposal for the country is to support and promote microcredit as one of the main solutions to address the goals proposed in the SDGs.

The novelty of this study lies in the use of spatial econometrics to observe the indirect effects of microcredit on the regions bordering the canton in which it was issued, thus examining the spatial effects of microcredit on wealth distribution.

This study aims to understand the leadership characteristics of founders of social and environmental enterprises in Latin America who have achieved business success with a focus on sustainability despite difficult social, economic, political and even health contexts in which they live.

This nonexperimental research is a qualitative, descriptive and exploratory study. Twenty-one in-depth interviews were conducted with social/environmental entrepreneurs of the Kunan Network (an organization that groups the entrepreneurial ecosystem in Peru).

The study analyzes the leadership profile and characteristics of entrepreneurs who have created profitable businesses with a social/environmental focus that solve relevant social problems and contribute to improving people’s quality of life and caring for the environment.

Although only 21 business leaders with outstanding participation and positive social and environmental impact were included in this study, they were supported and recognized by the Kunan Network.

The study contributed to the conceptualization and understanding of the profile of leaders of social and environmental enterprises, whose main challenges are to solve social or environmental problems of society and contribute to improving the quality of life of people and the environment. Knowing the profile of these entrepreneurs generates value to the knowledge of the subject and contributes to understand and propose strategies to improve the ecosystem of social-environmental entrepreneurship in emerging countries such as Peru. This will contribute to the creation of relationships and alliances with various social actors: public, private, third sector, academia, among others, for the management and promotion of sustainable business.

The purpose of this study is to analyze the strategies that allow sowing social entrepreneurship initiatives among young university students in Latin America. This study will also help to understand the different needs and expectations currently treated in higher education in developing its role as a promoter of entrepreneurship in students.

The study uses a multinomial logistic regression method analysis based on data collected through an online survey and applied to a sample of 599 advanced business administration students in five Latin American countries.

The results indicate that three of the independent variables under study are relevant as strategies to instill in university students the initiative for creating social entrepreneurship: establishing links with social communities, providing entrepreneurial education with a social orientation, and offering financial education.

These research findings indicate the role universities should have in promoting social entrepreneurship in university students. Therefore, the proposed strategies are crucial to improving this type of entrepreneurship.

The main contribution of this study is to analyze issues as crucial as social entrepreneurship in Latin American university students and broaden knowledge of the main strategies universities in this region must adopt so that students launch into the social area.

El propósito de este estudio es analizar las estrategias que permitan sembrar iniciativas de emprendimiento social entre jóvenes universitarios de América Latina. Esto permitirá conocer las diferentes necesidades y expectativas que se tienen actualmente en la educación superior en el desarrollo de su papel como promotor del emprendimiento en los estudiantes.

El estudio utiliza un análisis método regresión logística multinomial basado en datos recopilados a través de una encuesta en línea, aplicada a una muestra de 599 estudiantes avanzados de administración de empresas en cinco países latinoamericanos.

Los resultados evidencian que tres de las variables independientes en estudio son relevantes como estrategia para sembrar en los estudiantes universitarios la iniciativa de crear emprendimiento social: el tener vínculos con las comunidades sociales, otorgar educación emprendedora con orientación social y el brindar educación financiera.

Los hallazgos de esta investigación señalan el rol que deben de tener las universidades para fomentar el emprendimiento social en los estudiantes universitarios. Por lo tanto, se proponen estrategias claves para mejorar este tipo de emprendimientos.

La principal contribución de este estudio es analizar temas tan importantes como el emprendimiento social en los estudiantes universitarios de América Latina y ampliar el conocimiento de las principales estrategias que deben adoptar las universidades de esta región para que los estudiantes se lancen en el área social.

O objetivo deste estudo é an analisar as estratégias que permitem semear iniciativas de empreendedorismo social entre jovens universitários da América Latina. Permitirá conhecer as diferentes necessidades e expectativas atualmente tratadas no ensino superior no desenvolvimento do seu papel de promotor do empreendedorismo nos alunos.

O estudo utiliza um método de análise de regressão logística multinomial baseado em dados coletados por meio de uma pesquisa on-line, aplicada a uma amostra de 599 estudantes avançados de administração de empresas em cinco países latino-americanos.

Os resultados mostram que três das variáveis independentes em estudo são relevantes como estratégia para incutir nos estudantes universitários a iniciativa de criar empreendedorismo social: ter ligações com comunidades sociais, proporcionar educação empreendedora com orientação social e fornecer educação financeira.

Os resultados desta investigação indicam o papel que as universidades devem ter na promoção do empreendedorismo social nos estudantes universitários. Portanto, as estratégias propostas são fundamentais para melhorar esse tipo de empreendedorismo.

A principal contribuição deste estudo é analisar temas tão importantes quanto o empreendedorismo social nos universitários latino-americanos, e ampliar o conhecimento das principais estratégias que as universidades desta região devem adotar, para que os estudantes se lancem na área social.

Previous research has explored the link between sustainability disclosure and reputation but produced contradictory results. This study aims to clarify the sustainability disclosure–reputation relationship through a quantitative analysis of the correlations between these variables reported in empirical research papers. The second objective was to determine how various moderators affect the sustainability disclosure–reputation link.

The meta-analysis was based on a systematic review of the literature covering empirical research on the corporate sustainability disclosure and reputation relationship. A total of 92 articles were meta-analyzed to compile their findings on four extrinsic moderators: company size, ownership, stock listing status and activity sector.

The findings confirm that a significant positive correlation exists between corporate sustainability disclosure and reputation. The moderator analysis also revealed that companies’ different characteristics can explain researchers’ divergent results.

The results have considerable practical relevance for organizational management. First, they can motivate managers to improve and disclose their company’s social and environmental impacts to strengthen their reputation, which in turn will help accelerate the achievement of the Sustainable Development Goals. Second, the findings can ensure organizations develop disclosure and reputation management strategies adapted for each firm’s size, ownership, stock listing status and activity sector.

The results have considerable practical relevance for organizational management. First, they can motivate managers to improve and disclose their company’s social and environmental impacts to strengthen their reputation, which in turn will help accelerate the achievement of the Sustainable Development Goals. Second, the findings can ensure organizations develop disclosure and reputation management strategies adapted for each firm’s size, ownership, stock listing status and activity sector.

To the best of the authors’ knowledge, this meta-analysis is the first to clarify the link between disclosure and reputation, which makes a unique contribution to the field of social and environmental accounting. A larger sample of primary research was collected, and key extrinsic moderators were examined to explain prior studies’ contradictory findings.

The COVID-19 pandemic has caused significant mortality and morbidity worldwide. However, the role of dietary patterns as a potential risk factor for COVID-19 has not been well established, especially in studies with large samples. Therefore, this study aims to identify and evaluate the association between major dietary patterns and COVID-19 among adults from Iran.

In this cross-sectional study, the authors included 9,189 participants aged 20–70 who participated in the Yazd Health Study (YaHS) and Taghzieh Mardom-e-Yazd study (TAMIZ). They used factor analysis to extract dietary patterns based on a food frequency questionnaire (FFQ). Then, they assessed the relationship between these dietary patterns and the odds of COVID-19.

This study identified two major dietary patterns: “high protein and high fiber” and “transitional”. Participants in the highest tertile of the “high protein and high fiber” dietary pattern, which included vegetables, fruits, dairy and various kinds of meats such as red meat, fish and poultry, had a lower odds of COVID-19 compared with those in the lowest tertile. However, the “transitional” dietary pattern did not affect the risk of COVID-19.

In conclusion, a “high protein, high fiber” diet may lower the odds of COVID-19. This study suggests that dietary patterns may influence the severity and spread of future similar pandemics.

The study aims to analyze the effect of the previous preparation and the work carried out in the field during a study trip on the development of competencies in agribusiness students.

The destination was the pineapple area of the Papaloapan Lower Basin in Mexico, and 42 students from 6 different semester levels participated. The students answered a test prior to the trip, received an evaluation for their activities in the field and prepared reports and posters as products of the experience. The relationship between the scores obtained was examined through a comparative analysis.

The findings are framed in the cyclical model of experiential learning with four stages (feeling, watching, thinking and doing) by Kolb (1984). It is found that the acquisition of specific knowledge about what the experience will entail leads to better preparation, motivation and confidence to live the experience (potentiation of feeling and watching). In turn, specific knowledge and better use of experience promote the development of problem solving, interpersonal and communication skills (potentiation of thinking and doing).

Statistical representativeness is not a quality of the study since it is based on a comparative analysis.

The study analyzes an educational component of great value in the business area, about which little is known in the agribusiness subarea.