Producción Científica

 

 

The global energy system is moving towards a sustainable future with new development strategies that reduce the carbon footprint, such as the water–energy–food (WEF) nexus. Several countries have implemented this link to provide energy and food security while maintaining the relationship between socio-economic progress and environmental protection. The WEF nexus with energy development generates new interest in innovation, and it is important to explore the growth of this academic field. The work aims to analyse the scientific development of the WEF nexus during energy intervention processes, through bibliometric review models, for the knowledge of strategies in a bioenergy framework. The methodology consists of: (i) information compilation (Scopus and Web of Science) and software selection; (ii) information review on scientific production, author keywords and countries; and (iii) focus group analysis in a framework of energy development. The results show scientific interest from 2007, with exponential growth from 2016. The literature presents the interest of implementing the WEF nexus in energy processes to reduce environmental pollution, like ethanol in gasoline, biorefineries, sustainable agriculture, hydropower, and renewable energies (solar, wind). This scientific approach is dominated by the USA, China and the United Kingdom in environmental science, energy and engineering areas, accounting for 60% of the production. The study shows that the WEF nexus approach to energy developments creates new prospects for decision-making in socio-economic, political, and environmental progress.

 

 

The water security (WS) approach must be practical and measurable to address water-related challenges. Since 2000, the term Water Security has been regularly mentioned worldwide. However, nowadays, there is still not an accepted definition either for a country or for a region. This research conducted a meta-analysis in the context of renewable water and global water stress, evaluating 873 scientific papers and 26 definitions of WS, using bibliometric network analysis, geographic information systems, and data mining to analyze the state of the art of WS. The results indicate that the definitions of WS have an anthropocentric character. The term economic in the context of WS definitions is the most relevant, and the term ecosystems are the least relevant. Less than 30 % of the definitions analyzed are operationalized through some measurement instrument. The most researched topics on WS are evaluation, management, and impact. On the frontier of study are the issues of water footprint, operation of springs, and awareness. In the world, countries such as the United States, China, and the United Kingdom, with little renewable water in their respective continents, are the ones that publish the most and try to define the concept of WS. Therefore, it is concluded that the main problem of WS definitions worldwide is that they cannot be operationalized in some local indexes, hindering their implementation. In addition, the environment has not been relevant in WS research and definitions.

 

 

Landslides, earthquakes, and other natural events can change the landscape and generate human and economic losses, affecting transportation and public service infrastructure. In every geotechnical project, the investigation phase plays a fundamental role in reducing the risk of occurrence and mitigating catastrophes. As a result, governments have created entities to study disasters and identify triggering factors that generate huge losses worldwide. This research aims to conduct a systematic review of the relationship between geotechnics and disasters through bibliometric techniques, scientific production evaluation, and case studies analysis to recognize key topics, methods, and thematic development of the research worldwide. The research methodology consisted of three steps: (1) Database analysis, selection, and combination, (2) bibliometric analysis, and (3) systematic review using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method. The systematic review with bibliometric analysis collected data from 1973 to 2021, with 1299 academic publications indexed in the Scopus and WoS database. These results indicated a growing trend of annual publications on disasters and their relationship with geotechnical studies, highlighting current issues and technological innovation. The main research trends in disaster risk assessment were topics mainly linked to landslides, earthquakes, liquefaction, and inappropriate analysis models with applications of geophysical methods, laboratory tests, remote sensing, and numerical models.

 

 

The organic fraction of municipal solid waste is mainly composed of food waste (FW), and traditional disposal practices for this fraction are generally considered to have negative environmental and economic impacts. However, the organic characteristics of this fraction could also be exploited through the anaerobic digestion of FW (FW-AD), which represents unique advantages, including the reduction of the area required for final disposal and environmental pollution and the same time the generation of renewable energy (mainly methane gas), and a by-product for agricultural use (digestate) due to its high nutrient content. Although approximately 88% of the world’s population resides in areas with temperatures below 8 °C, psychrophilic conditions (temperatures below 20 °C) have hardly been studied, while mesophilic (66%) and thermophilic (27%) ranges were found to be more common than psychrophilic FW-AD (7%). The latter condition could decrease microbial activity and organic matter removal, which could affect biogas production and even make AD unfeasible. To improve the efficiency of the psychrophilic FW-AD process, there are strategies such as: measurement of physical properties as particle size, rheological characteristics (viscosity, consistency index and substrate behavior index), density and humidity, bioaugmentation and co-digestion with other substrates, use of inocula with psychrophilic methanogenic communities, reactor heating and modification of reactor configurations. However, these variables have hardly been studied in the context of psychrophilic conditions and future research should focus on evaluating the influence of these variables on FW-AD under psychrophilic conditions. Through a bibliometric analysis, this paper has described and analyzed the FW-AD process, with a focus on the psychrophilic conditions ([removed]

 

 

Global pork production has an annual growth of approximately 2.1%, and its economic and environmental impact are related with the treatment of waste in the production chain. There is little evidence of research advances to generate alternatives for using these wastes. The lack of research related to microalgae cultivation using digestate produced by porcine residues generates negative environmental impact, inadequate and inefficient technologies, low recovery and use of waste and loss of value and competitiveness in the market. The available literature focuses mainly on the treatment of anaerobic digestion liquid effluents for the removal of components, but not on the generation of value-added products. Therefore, there is a need to collect the available information, analyze it and propose other new methodologies. This article presents the information obtained from conducting a systematic review of the literature with a bibliometric and a comparative analysis; achieving an analysis of the temporal and geographical distribution, the main topics, the most influential players, the degree of maturity of the research and different strategies collected for microalgae-based swine manure digestate treatment. In this way, it was possible to capture an overview of the current state of the development of research focused on the use of digestate for the cultivation of microalgae, visualizing important aspects as the evolution of publications, identifying China and USA as the main players in research, biomass and wastewater as potential topics also Spirulina, Astaxanthin and beta-carotene as the main products based on microalgae. Thus, achieving an structure, organized and synthesized landscape of scientific and technological knowledge available for the proposal of investigations that allow the use of anaerobic digestion liquid effluents as cultivation medium for microalgae.

 

 

The research in sustainable development goals (SDG) increases year by year since its approval in 2015. Typically, after a phase of exponential growth, the number of publications increases at lower rates, suggesting a consolidation process in which literature reviews become a relevant and high-evidence type of document. In this context, the aim of this study was to perform an unprecedented bibliometric analysis of literature reviews on SDG to assess the evolution and consolidation of the scientific research. Article reviews on SDG from 2015 to 2022 were retrieved from Web of Science core collection and a descriptive bibliometric analysis was performed by growth rate, research area, source, citation, and region. Mapping and cluster analysis using keyword co-occurrence, co-authorship, and bibliographic coupling were also applied. The result revealed that SDG is a fast-growing field, with a trend in the diversification of research areas. Most of the review documents were categorized in general aspects of sustainability. Technology (SDG 9) and economic growth (SDG 8) were spotted as hidden key research areas. This result is contrary to previous bibliometric studies on SDG, demonstrating the rapid evolution and change in the field. In addition, literature reviews on reduced inequalities (SDG 10), gender equality (SDG 5); oceans, seas, and marine environments (SDG 14); and peace, justice, and strong institutions (SDG 16) were revealed as research gaps. Thus, the results demonstrated that the research on SDG cannot yet be considered a consolidated area of research, as it leaves many SDG unexplored. Future research has been proposed accordingly.

 

 

Purpose: to investigate the behavior and tendency of the formation of social networks of the scientific production on the Green Hydrogen theme published in scientific journals indexed in EBSCO. Theoretical framework: the theme of green hydrogen has been gaining attention and strength in the current context of global energy transition, as it is a clean alternative for generating energy for electricity, industry, heating, and transport sectors, and, in replacing fuels to carbon base, influencing sustainable development. Method: bibliometric analysis techniques were used, and predominantly social network analysis (SAR) through one-mode and two-mode network analysis. Results and conclusion: evolution of the theme in academia; weak ties in co-authorship and institutional networks; relevance of China and its originating institutions in the scientific production of the subject investigated; the most central keywords were: hydrogen, green hydrogen, renewable energy, production and hydrogen production; and the most fruitful themes were: production, sustainability, energy and carbon emissions. It concludes with a macro and contemporary view of the theme of green hydrogen in the international literary academic field. Research implications: the present study contributed to a better understanding and understanding of the formation of collaboration networks of the actors involved in the process of building international scientific knowledge, and, by verifying that green hydrogen presents opportunities for economic growth and job creation, this research also contributes to creating an entrepreneurial and social research agenda. Originality/value: to investigate the international scientific production on the theme of green hydrogen, as this is an emerging theme in the global academic literature, and, therefore, to verify that the referred theme gains strength through researchers and their respective studies.

 

 

Research on open innovation (OI) has increased in recent years, showing its potential in various areas of knowledge. Its relation to small and medium-sized enterprises has attracted the attention of academics. This article aims to evaluate the intellectual structure of the scientific study of OI, and its close relationship with various scientific fields, through a bibliometric analysis of this academic field using the Scopus database and the application of the VOSviewer software. The methodology comprises a rigorous systematic and transparent process divided into four phases: (i) the establishment of search criteria for the research field, through a literature review for its selection; (ii) the selection of the database, the establishment of the search equation and extraction of information; (iii) the application of inclusion and exclusion criteria for the selected documents and an explanation of the usefulness of the software; and (iv) the analysis of the results through the approaches of scientific output performance and bibliometric mapping. The results show an increasing trend of IO publications in SMEs, consolidated in 396 articles with contributions from 65 countries and 947 authors. The intellectual structure shows seven themes related to firm performance, R&D networks, business management, business models, capabilities and knowledge transfer. This study contributes to the field by providing an overview of IO in SME contexts. It also provides insightful information to policymakers for developing policies for firm economic growth.

 

 

The objective of this research is to analyze the behavior of scientific production on SMEs, given their importance for the generation of jobs from the production and distribution of goods and services, thus contributing to the economic, social and family progress of the different countries. The research consisted of a descriptive study, with a quantitative approach and a non-experimental, longitudinal and retrospective design. From a metric study carried out in the Scopus database, during the period 2016-2020, a total of 158 articles were obtained, where unidimensional bibliometric indicators of productivity were analyzed by: years, authors and keywords. Likewise, multidimensional bibliometric indicators, author collaboration and keyword co-occurrence were used using VOSviewer software and impact indicators to analyze the most cited authors and most cited articles. The results point to a decrease in scientific production per year, with the Spanish language prevailing in the publications. In conclusion, it should be noted that the research carried out contributes to determine the trends and behavior in this subject, where the research fronts that show the best collaborative relationships are three, it being significant that only in one of them the node represented by the keyword SMEs has the largest dimension, indicating that it leads this community.

 

 

Reuse and remanufacturing have been widely studied in the maintenance related literature due to the imperative of preserving resources and protecting the environment. To provide researchers with a holistic view of the existing research, there is a need to check how relevant methods have been developed. This paper undertakesa bibliometric analysis and a comprehensive literature review of maintenance policies and models that deal with reuse or remanufacturing as sustainable strategies. A total of 581 papers collected from Web of Science, Scopus, and IEEE Xplore databases were analysed. 53 of them were chosen for further investigation after four selection criteria were applied. The bibliometric analysis provided a general understanding of the publication trends while the literature review built a taxonomy that organises the related literature under the dimensions of models, businesses, and sustainable strategies, which creates novelty in the maintenance-sustainability related literature. The main contribution is the classification of related papers and identification of the main knowledge gaps, including the neglect of the environmental and social aspects of sustainability vis-à-vis the prioritisation of an economic perspective.