An agrovoltaic system combines agricultural crop production and energy production in the same place, emphasizing the dual use of land. This article provides a bibliometric analysis of agrivoltaic topics based on publications indexed in SCOPUS, in which either economic assessments of agrivoltaics, agrivoltaic systems for crops and livestock animals, photovoltaic greenhouse and agrivoltaics with open field are discussed, or its ideas are used to analyze certain locations. A bibliometric analysis was conducted using the SCOPUS database. Multiple bibliometric tools, such as R Studio and Biblioshiny, were applied to analyze data for this study. Finally, 121 relevant articles were obtained and reviewed. The results show that the focus topic is a brand-new research area, with the majority of relevant scientific publications concentrated in the last three years, and with much ongoing research. This is why AV-specialized scientific conferences might be the best place to get relevant and up-to-date information, with the highest number being offered in the USA and China. A typical trend in recent years has been researched, focusing on different agricultural aspects. The research results show that scientific publications in recent years mainly focus on short-term predictions, there is no recognized evaluation standard for various prediction analyses, and it is difficult to evaluate various prediction methods so far.

Background: COVID-19 has changed the world and strongly affected the health of the people and the quality of their life. These changes might impact employees’ physical activity (PA) and sedentary behavior (SB). This study aimed to summarize the literature focusing on the COVID-19-caused changes in physical activity and sedentary behavior among the adult working population. Methods: Literature searches were conducted in June 2021 using multiple electronic databases. The following keywords and synonyms were used during the searching process: physical activity, sedentary behavior, COVID-19, employee. After the data cleaning process (duplicates, inclusion criteria), the title and the abstract of all manuscripts from the searches were screened independently by two reviewers. Results: Thirty-nine manuscripts were selected as a result of the searching process. Of these, 5 were SB related, 15 were PA related and 19 addressed both PA and SB. There were longitudinal (10), cross-sectional (28) and a case study (1) in the selected manuscripts. The majority of studies were conducted in the USA (6) and Europe (18), and four studies examined the PA and/or SB in multiple countries. The majority (34 studies) of the studies used subjective, self-reported, but mostly before-validated questionnaires. Objective measures were less common and used only 12.8% of the examined studies. Moreover, 76.4% of the studies described an overall decrease in the amount of PA during the COVID-19 pandemic. In three cases, researchers observed an increase in PA among the workers. Five studies reported no significant changes in the amount of PA during the pandemic. As far as SB is concerned, 18 out of 24 of the studies reported an overall increase in the amount of SB between the two periods. Four manuscripts reported no significant change in the amount of SB, and there was only one manuscript in the examined studies that reported an overall decrease in the SB time before and during the COVID-19 pandemic. Discussion: There is no doubt that the COVID-19 pandemic, including lockdown and work from home (WFH) policies, impaired the PA and SB level of the populations. This period has delivered an important message for the adult working population as well. They should be as active as possible and avoid high levels of SB and uninterrupted sitting time. Therefore, organizations, policies and public health bodies should motivate workers, especially office workers, to be more active and interventions must be developed to mitigate the negative effects of the COVID-19 on PA and SB.

Biomass, as a part of renewables, is a resource found in large quantities and is a basis for many different industries. This paper presents the most important trends and characteristics of research in biomass potential and biomass utilization on a world scale. The main objective of this work is to analyze the state of research and trends in biomass potential and biomass utilization from 1974 to 2021, including 7117 relevant documents. The methodology part comprised two main stages: obtaining data from Scopus and then exporting the data into Excel. The VOSviewer bibliometric tool was used to analyze clusters of countries and groups of keywords. Research on this topic experienced significant development after 2000; moreover, the global trend of publications marked a significant increase after 2012. China and India have shown exponential growth, followed by USA, Germany, and UK. An important trend globally is that energy topics are gaining more importance and percentage annually, especially in photovoltaics and new generations of biofuels in terms of keywords. The paper aims to provide a tool for the scientific community by introducing the current state and potential tendencies in this special field, including the various sides of biomass use.

Over the years, energy is becoming an essential factor with an impact on social, economic, and environmental aspects. More than 2.5 billion people are connected to agriculture worldwide, so the importance of agricultural energy production has become increasingly important. This study provides a comprehensive review of renewable energy, environment, and farm publication trends. Two hundred articles from 1988 to 2022 were analyzed, with special attention devoted to the last three extreme years, using the Scopus database and the Bibliometrix tool for analysis and visualization. Research on this topic experienced significant developments after 2008, with many fluctuations being revealed. Historically, China and the USA were the most productive countries in agricultural energy production advancements. However, in the last three years, the research center’s respective contributions have undergone major changes. China maintained its dominance, but the importance of the USA fell sharply, and new centers (India, Poland) appeared. Biogas is the most popular method which is used and searched in this area between 1988–2022 since it includes both sustainability and locality. However, between 2020–2022, the importance of the circular economy has been highlighted in the literature. Complex energy systems, dual use of land, and energy storage might be the most important challenges for future research.

This systematic review presents the most important characteristics and trends of research in circular supply chain management (CSCM), taking into account the impact of COVID. In addition, the similarities and differences between the basic concepts often used as synonyms for sustainability are also presented. First, the sample database (39,000 records) was based on a search containing publications’ titles regarding supply chain management (SCM). After narrowing the topic from SCM towards CSCM, the considered paper characteristics were expanded, including abstract and author keywords, to get a manageable number of samples for the systematic analysis (6095 documents) and the most accurate results possible. The analysis’ base sample was divided into two periods (before and after 2012) due to a significant increase and change in the number of publications, their subject, characteristic journals and geographical location. Sustainability has emerged since 2012, while a circular approach emerged after 2017 with a significant share of research, mainly thanks to relevant EU policies. Although the role of the US has been decisive in the field, the European research bases of previous years have increasingly been replaced by Far Eastern dominance. Currently, CSCM’s most important journal is the International Journal of Supply Chain Management (Elsevier), but most articles on the impact of COVID have been published in Sustainability (MDPI). More effective policy implementation and the fight against COVID in the development of supply chains are also likely to spread the circular economic model in the future.

The article analyses co-authorship and co-citation networks in Food Policy, which is the most important agricultural policy journal in the field of agricultural economics. The paper highlights the principal researchers in this field together with their authorship and citation networks on the basis of 714 articles written between 2006 and 2015. Results suggest that the majority of the articles were written by a small number of researchers, indicating that groups and central authors play an important role in scientific advances. It also turns out that the number of articles and the central role played in the network are not related, contrary to expectations. Results also suggest that groups cite themselves more often than average, thereby boosting the scientific advancement of their own members.