Analyzing the research trends of COVID-19 using topic modeling approach

PurposeThe COVID-19 pandemic has impacted 222 countries across the globe, with millions of people losing their lives. The threat from the virus may be assessed from the fact that most countries across the world have been forced to order partial or complete shutdown of their economies for a period of time to contain the spread of the virus. The fallout of this action manifested in loss of livelihood, migration of the labor force and severe impact on mental health due to the long duration of confinement to homes or residences.Design/methodology/approachThe current study identifies the focus areas of the research conducted on the COVID-19 pandemic. s of papers on the subject were collated from the SCOPUS database for the period December 2019 to June 2020. The collected sample data (after preprocessing) was analyzed using Topic Modeling with Latent Dirichlet Allocation.FindingsBased on the research papers published within the mentioned timeframe, the study identifies the 10 most prominent topics that formed the area of interest for the COVID-19 pandemic research.Originality/valueWhile similar studies exist, no other work has used topic modeling to comprehensively analyze the COVID-19 literature by considering diverse fields and domains.

Managing disruptions in the maritime industry – a systematic literature review

PurposeThis paper presents a systematic review of the literature in the domain of maritime disruption management, upon which future research framework and agenda are proposed. Two review questions, i.e. the measures that are employed to manage disruptions and how these contribute to resilience performance, were pursued.Design/methodology/approachThe systematic literature review procedure was strictly followed, including identification and planning, execution, selection and synthesis and analysis. A review protocol was developed, including scope, databases and criteria guiding the review. Following this, 47 articles were eventually extracted for the systematic review to identify themes for not only addressing the review questions but also highlighting future research opportunities.FindingsIt was found that earlier studies mainly focused on measures, which are designed using mathematical models, management frameworks and other technical support systems, to analyse and evaluate risks, and their impacts on maritime players at the levels of organisation, transport system and region in which the organisation is embedded. There is, however, a lack of research that empirically examines how these measures would contribute to enhancing the resilience performance of maritime firms and their organisational performance as a whole. Subsequently, a Digitally Embedded and Technically Support Maritime Disruption Management (DEST-MDM) model is proposed.Research limitations/implicationsThis review is constrained by studies recorded by the Web of Science only. Nevertheless, the proposed research model would expectedly contribute to enhancing knowledge building in the specific domain of maritime disruption management and supply chain management overall while providing meaningful managerial implications to policymakers and managers in the maritime industry.Originality/valueThis research is perhaps one of the first studies which presents a systematic review of literature in maritime disruption management and proposes a future research framework that establishes the link between disruption management and resilience and organisational performance for empirical validation.

Evolution and trends in entrepreneurial finance: reflections and insights from COVID-19

Entrepreneurship contributes substantially to the modernization and commercial development of an economy. Access to financial resources is key to the successful operation of new ventures which is arrested by COVID-19. Therefore, the present study aims to address the architecture of entrepreneurial finance since the inception of COVID-19. The research adopts a Systematic literature review approach to study the 127 articles chosen for analysis. The findings reveal the usage of novel sources of finance such as crowdfunding, and Initial Coin Offerings during COVID-19. Apart from this, the research also encapsulates the contributions of the articles on venture capital, P2P lending, and angel finance. Also, the study highlights promising avenues for future research focusing on different financing options and drivers of financing choices. © 2023 Informa UK Limited, trading as Taylor & Francis Group.

Stress Factors and the Impacts of COVID-19 Pandemic: A Review on the Aviation Industry

This study outlines the stress factors and the impact of the COVID-19 pandemic on the stress variables among aviation workers, which includes airline employees, flight crews, pilots, maintenance crews, air traffic controllers, airport or ground workers, engineers, training personnel, and other aviation-related personnel. A review was done on 37 research papers using systematic literature review (SLR) and discovered nine stress factors among aviation workers which are working hours, workloads, internal factors, ergonomic issues, job uncertainty, job demands, organizational issues, team conflict, and the COVID-19 itself. The findings of this study could provide insights to employers in the aviation industry for mitigation actions that could help to successfully reduce and eliminate stress factors in the workplace. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Systematic Literature Review of Performance Measurement Systems in Health Sector of Pakistan

Building The research study is primarily focused on identifying the parameters of Performance Measurement System within the healthcare sectors of Pakistan. The main purpose is to identify the efficacy of different Performance Measurement Systems within Pakistan, and its impacts on performance of physicians. Considering the current performance and situation in healthcare sector of Pakistan, it has been analyzed that the country has come a long way towards progress, however there is still a major lacking of proper standards and guidelines which must be followed in all the healthcare institutions. The problem statement emphasizes over the need of PMS in the healthcare institutions, with the help of which the improvements and efficacy in performance of the healthcare professionals can be determined. The research objective designed for this study is identify the impact of Performance Measurement Systems on the improvisations in current practices, on patient satisfaction and recovery, changes in patterns of mortality rates and budgetary control within the country for healthcare sectors. In order to conduct this research study, the type of research method which has been mainly opted is qualitative analysis involving the write up of a Systematic Literature Review. This review has been designed on the basis of PRISMA method, and proper skimming of research articles have been performed accordingly. 22 articles have been taken for further investigation, published after the year of 2010. The indicators which have been focused on in this study include Patient Satisfaction, Mortality, Survival rates and Cost Allocation to healthcare sectors of the country. Based on the findings of number of research articles, it has been identified that Patient Satisfaction and Cost Allocation have not been improved via Performance Management System. However, during the COVID-19 pandemic, the mortality and survival rates in the public and private sectors of the country were controlled due to constant supervision by governmental agencies and the use of an effective and efficient Performance Measurement method for staff members in the healthcare industry.

COVID-19 and Agricultural Entrepreneurship in Zimbabwean Townships: A Systematic Literature Review

Entrepreneurship is crucial in achieving economic prosperity and development in any country. Despite the importance of entrepreneurship in Zimbabwe, the relationship between COVID-19 and agricultural entrepreneurship is still unclear. As a result, the current chapter seeks to answer the following questions: 1. What is the status of literature on the relationship between COVID-19 and agricultural entrepreneurship in Zimbabwean townships? 2. What are the trends and gaps in the studies on the effects of COVID-19 on agricultural entrepreneurship? The chapter answered the questions using bibliometric analysis and a systematic literature review. Two tasks characterised the ‘search': search in Dimension database for bibliometric analysis and search in Google Scholar and ScienceDirect for general systematic review. The dates were limited to between January 2020 and March 2022. The study adopted VOSviewer, in conducting bibliometric analysis, and CADIMA, in conducting the systematic literature review. The bibliometric analysis findings show that entrepreneurship is being ignored among the studies investigating relationships between COVID-19 and agriculture. On top of the scarcity of entrepreneurship thrust in studies on COVID-19 and agriculture, the studies focusing on Zimbabwe are minimal. Also, the relationship between COVID-19 and agricultural entrepreneurship shows inconclusive results and methodological gaps. There is a need to cover gaps in the literature by researching Zimbabwean townships and using quantitative or mixed methodologies to triangulate existing findings in the body of knowledge. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

Multi-level students' sense of community development in hybrid and online learning environments at higher educational institutions: A systematic literature review

The formulation of a sense of community (SOC) among students has received significant attention in the literature in recent years. However, digitally enhanced learning and COVID-19 have amplified the challenges vis-a-vis connecting students and making them feel involved and recognized in virtual learning ecologies for higher educational institutions (HEIs). This review examines the factors impacting students' SOC development in online and hybrid learning environments for HEIs. To provide a holistic view, we synthesize the streams of theoretical foundations on SOC for keyword search strategy and follow Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol. In total, 128 empirical studies from 2015 to October 2022 are synthesized. One of the main contributions lies in disclosing the multiple levels of students' SOC formulation from a sociological perspective on HEIs. It further broadens our understanding of the dimensions, and the roles and responsibilities of key players, as well as the units involved in the social context of HEIs. The main findings reveal that HEIs should "circulate the blood" by integrating various key elements identified in pedagogy, instructor, learner, and extra-curriculum fields into the learning ecology for SOC facilitation to formulate an implicit curriculum and a more interactive, supportive, and caring environment. (PsycInfo Database Record (c) 2023 APA, all rights reserved)

A Scoping Review of Empirical Studies in Gather.town

There is an increasing interest for people to meet and interact in virtual online environments, including Gather.Town, especially during the COVID-19 pandemic and in the post-pandemic world. We present a scoping review of 11 empirical studies in Gather.town - a 2D Metaverse using a game-like interface with video-chat in which people can create their own virtual spaces and act as avatars to interact with each other for various purposes. To identify knowledge gaps, we summarized the included articles in terms of their application contexts, research issues, research methods, and key findings. We found that most of them were conducted in educational settings with a focus on students' learning experiences and perceptions. The findings of the reviewed studies generally suggested that the use of Gather.town benefited users' engagement. However, the available evidence was mostly based on short interventions (e.g., one session) and self-reported measures (e.g., surveys and interviews). This review concluded by presenting several research gaps for future research (e.g., studies with a longer duration and using more objective measurements of learning achievement and work results). © 2023 IEEE.

New directions towards internationalization of higher education in China during post-COVID 19: A systematic literature review

This study aims to explore the new directions towards internationalization of higher education in China during post-COVID 19. The systematic literature review is applied as an evidence-based policy analysis approach. The findings indicate that the challenges and difficulties of internationalization of higher education in the post-COVID 19 were considered as a high-frequency discussion topic. In order to address the crises of internationalization of higher education during the post-COVID 19, the idea of internationalization at home (IaH) is regarded as a beneficial approach to deal with the process of internationalization of higher education, systematically. This study also highlighted that the internationalization at home within Chinese higher education institutions not only brings opportunities for the development of China's higher education system, but also poses challenges to the reform of the current higher education system. In addition, the conclusion and implication were provided to analyze the rationales of promoting internationalization of higher education system in contemporary China.

A critical appraisal of ways organizations can support social workers in light of covid-19: A scoping review

Due to the challenges of the COVID-19 pandemic, there is a need for increased knowledge surrounding organizational support for social workers. This scoping review evaluated emerging research during the first two years of the pandemic (January 2020-May 2022) around ways organizations can support social work staff after the pandemic and during future public health disasters. This review suggests organizational leaders implement protocols to preserve workers' well-being, create supportive spaces, provide supervision and mentorship, acknowledge inequalities and enact change, and promote crisis preparedness. This review concludes with a list of recommendations and a discussion of further implications for practice and research. (PsycInfo Database Record (c) 2023 APA, all rights reserved)

Sustainable Cruise Tourism: Systematic Literature Review and Future Research Areas

The cruise shipping industry has existed for centuries. However, sustainability is a relatively new trend that could make a big difference and someday impact the industry. A growing body of research on sustainable cruise tourism includes studying changes among industry stakeholders, internal and external processes, and more. However, until now, there have been no comprehensive and systematic reviews of the academic literature on this topic and proposals for future research areas. The sample for our research consists of 56 articles structured into the following themes and subthemes: (1) corporate social responsibility (public interaction and emissions management);(2) territory management (collaboration with stakeholders and infrastructure development);(3) training in sustainable behavior (passengers, ship personnel, and other stakeholders). These themes fully explore the various use cases for sustainable cruises, forming a conceptual framework for understanding trends for the industry's sustainable development. We direct the attention of other researchers to the following areas for further research: GHG emissions of cruising;biodiversity impacts;quantitative understanding of the target audience and their participation in sustainability financing;in-depth understanding of the reasons for cooperation between stakeholders;identifying the true motivation for participation in sustainable development;the long-term trends;and how the shipping industry is adapting to the effects of the COVID-19 pandemic.

Low-dose computed tomography in COVID-19: systematic review

BACKGROUND: The increased number of computed tomography scans during the COVID-19 pandemic has emphasized the task of decreasing radiation exposure of patients, since it is known to be associated with an elevated risk of cancer development. The ALARA (as low as reasonably achievable) principle, proposed by the International Commission on Radiation Protection, should be adhered to in the operation of radiation diagnostics departments, even during the pandemic. AIM: To systematize data on the appropriateness and effectiveness of low-dose computed tomography in the diagnosis of lung lesions in COVID-19. MATERIALS AND METHODS: Relevant national and foreign literature in scientific libraries PubMed and eLIBRARY, using English and Russian queries "low-dose computed tomography” and "COVID-19,” published between 2020 and 2022 were analyzed. Publications were evaluated after assessing the relevance to the review topic by title and analysis. The references were further analyzed to identify articles omitted during the search that may meet the inclusion criteria. RESULTS: Published studies summarized the current data on the imaging of COVID-19 lung lesions and the use of computed tomography scans and identified possible options for reducing the effective dose. CONCLUSION: We present techniques to reduce radiation exposure during chest computed tomography and preserve high-quality diagnostic images potentially sufficient for reliable detection of COVID-19 signs. Reducing radiation dose is a valid approach to obtain relevant diagnostic information, preserving opportunities for the introduction of advanced computational analysis technologies in clinical practice. © Eco-Vector, 2023.

A real-world evaluation of the implementation of NLP technology in abstract screening of a systematic review.

The laborious and time-consuming nature of systematic review production hinders the dissemination of up-to-date evidence synthesis. Well-performing natural language processing (NLP) tools for systematic reviews have been developed, showing promise to improve efficiency. However, the feasibility and value of these technologies have not been comprehensively demonstrated in a real-world review. We developed an NLP-assisted abstract screening tool that provides text inclusion recommendations, keyword highlights, and visual context cues. We evaluated this tool in a living systematic review on SARS-CoV-2 seroprevalence, conducting a quality improvement assessment of screening with and without the tool. We evaluated changes to abstract screening speed, screening accuracy, characteristics of included texts, and user satisfaction. The tool improved efficiency, reducing screening time per abstract by 45.9% and decreasing inter-reviewer conflict rates. The tool conserved precision of article inclusion (positive predictive value; 0.92 with tool vs. 0.88 without) and recall (sensitivity; 0.90 vs. 0.81). The summary statistics of included studies were similar with and without the tool. Users were satisfied with the tool (mean satisfaction score of 4.2/5). We evaluated an abstract screening process where one human reviewer was replaced with the tool's votes, finding that this maintained recall (0.92 one-person, one-tool vs. 0.90 two tool-assisted humans) and precision (0.91 vs. 0.92) while reducing screening time by 70%. Implementing an NLP tool in this living systematic review improved efficiency, maintained accuracy, and was well-received by researchers, demonstrating the real-world effectiveness of NLP in expediting evidence synthesis.

Emerging Digital Practices Supporting Student-Centered Learning Environments in Higher Education: A Review of Literature and Lessons Learned from the Covid-19 Pandemic.

The aim of this paper is two-fold: firstly, to provide an overview of emerging digital practices that support collaborative learning, competency development, and digital literacy for student-centered learning environments in higher education during the rapid digital transition caused by pandemic-related lockdowns across the world, and secondly, to analyze and discuss how systematic reviews of generalized themes and trends can be combined with contextualized experiences and the lessons learned from the Covid-19 crisis to inform the digital transformation of higher education, with a particular focus on bridging the gap between campus-based teaching and online learning and on the identification of the digital competencies that teachers and students must acquire during the continuing shift into a 'new normal' for post-pandemic educational practices. This study was motivated by questions and findings emerging from an early reactive case study conducted by three of this paper's co-authors (Lyngdorf et al., 2021a). By reviewing the full texts of 18 articles, this study provides a systematic literature review which maps the general landscape of the online, hybrid, and blended digital practices applied in existing student-centered learning environments in higher education since the onset of the pandemic. Furthermore, this mapping is used to revisit data and findings from the earlier reactive study of emerging digital practices in a specific problem- and project-based learning (PBL) environment. This study's findings highlight critical factors and barriers related to emerging practices which support students' interactions with teachers, content, and each other, as well as the emerging competencies that these practices will require. The paper concludes with a discussion of the main findings and their implications for further research and practice.

Covid-19 distance and online learning: a systematic literature review in pharmacy education.

The Covid-19 outbreak necessitated the implementation of social distancing mechanisms, such as the enforcement of lockdowns in numerous nations. The lockdown has disrupted many parts of everyday life, but this unusual event has particularly affected education. The temporary closure of educational institutions ushered in dozens of new reforms, including a shift into the distance and online learning. This study investigates the transition from traditional education in physical classrooms to online and distance and online learning in pharmacy education during Covid-19, especially about the challenges and benefits of distance and online learning. We did Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) for literature sources between 2020 and 2022 (n.14). The study elaborates on how the transition has influenced teachers and students of pharmacy education. The research also summarizes several recommendations, which may assist in minimizing the adverse impacts of lockdown and encourage streamlined processes to distance and online learning, particularly in pharmacy education.

Seven years of studying the associations between political polarization and problematic information: a literature review.

This literature review examines the intersection between political polarization and problematic information, two phenomena prominent in recent events like the 2016 Trump election and the 2020 COVID-19 pandemic. We analyzed 68 studies out of over 7,000 records using quantitative and qualitative methods. Our review revealed a lack of research on the relationship between political polarization and problematic information and a shortage of theoretical consideration of these phenomena. Additionally, US samples and Twitter and Facebook were frequently analyzed. The review also found that surveys and experiments were commonly used, with polarization significantly predicting problematic information consumption and sharing.

Impact of pandemics and disruptions to vaccination on infectious diseases epidemiology past and present.

Infectious diseases are a leading cause of morbidity and mortality worldwide with vaccines playing a critical role in preventing deaths. To better understand the impact of low vaccination rates and previous epidemics on infectious disease rates, and how these may help to understand the potential impacts of the current coronavirus disease 2019 (COVID-19) pandemic, a targeted literature review was conducted. Globally, studies suggest past suboptimal vaccine coverage has contributed to infectious disease outbreaks in vulnerable populations. Disruptions caused by the COVID-19 pandemic have contributed to a decline in vaccination uptake and a reduced incidence in several infectious diseases; however, these rates have increased following the lifting of COVID-19 restrictions with modeling studies suggesting a risk of increased morbidity and mortality from several vaccine-preventable diseases. This suggests a window of opportunity to review vaccination and infectious disease control measures before we see further disease resurgence in populations and age-groups currently unaffected.

Bilateral Spontaneous Resolution of Traumatic Epidural Hematoma: A Case Report and Literature Review.

Epidural hematomas (EDHs) are a neurosurgical emergency characterized by the accumulation of blood in the epidural space surrounding the dura mater. Spontaneous resolution of EDH is an exceptionally rare occurrence, with only 16 cases reported in the medical literature where resolution occurred within 24 hours of onset. In this case report, we present a unique instance of a chronic EDH that spontaneously resolved over a period of seven months. This case adds to the scientific literature by highlighting an extremely prolonged duration of spontaneous EDH resolution, which, to our knowledge, has not been previously documented. A 59-year-old male suffered a head injury following a fall. He presented with a progressively worsening headache and nausea, raising concerns for a potential EDH. A computed tomography (CT) scan confirmed the presence of a large right parietal EDH measuring 58 × 23 × â€‹â€‹â€‹â€‹â€‹â€‹â€‹17 mm and a large left frontoparietal EDH measuring 90 × 20 ×​​​​​​​ 12 mm. These findings were crucial in establishing the primary diagnosis and guiding subsequent interventions. Upon diagnosis of the EDHs, the patient received conservative treatment and was closely monitored. Over a period of seven months, follow-up imaging revealed complete resolution of both EDHs, with restoration of normal midline structures and ventricular sizes. Notably, this represents the longest duration of spontaneous EDH resolution reported in the literature. We attribute this uncommon outcome to the activation of endogenous fibrinolytic pathways, which are responsible for dissolving blood clots and hematomas. In addition, the formation of new collateral blood vessels around the hematoma may help facilitate its resolution. This case underscores the significance of early recognition and vigilant monitoring of EDH cases. While immediate surgical intervention remains essential in most instances, conservative management can be considered in select cases. Our report demonstrates the possibility of spontaneous resolution of EDHs over an extended period, emphasizing the importance of continued observation and appropriate management. By shedding light on this rare occurrence, this case report contributes to the limited existing literature on the topic, providing valuable insights and adding to our understanding of EDH management.

Retailing during the COVID-19 lifecycle: a bibliometric study

PurposeCOVID-19 disrupted the lives of consumers across the globe, and the retail sector has been one of the hardest hits. The impact of COVID-19 on consumers' retail choice behaviour and retailers' responses has been studied in detail through multiple lenses. Now that the effect of COVID-19 is abating, there is a need to consolidate the learnings during the lifecycle of COVID-19 and set the agenda for research post-COVID-19.Design/methodology/approachScopus database was searched to cull out academic papers published between March 2020 and June 6, 2022, using keywords;shopping behaviour, retailing, consumer behaviour, and retail channel choice along with COVID-19 (171 journals, 357 articles). Bibliometric analysis followed by selective content analysis was conducted.FindingsCOVID-19 was a black swan event that impacted consumers' psychology, leading to reversible and irreversible changes in retail consumer behaviour worldwide. Research on changes in consumer behaviour and consumption patterns has been mapped to the different stages of the COVID-19 lifecycle. Relevant research questions and potential theoretical lenses have been proposed for further studies.Originality/valueThis paper collates, classifies and organizes the extant research in retail from the onset of the COVID-19 pandemic. It identifies three retail consumption themes: short-term, long-term reversible and long-term irreversible changes. Research agenda related to the retailer and consumer behaviour is identified;for each of the three categories, facilitating the extraction of pertinent research questions for post-COVID-19 studies.

The role of operations and supply chain management during epidemics and pandemics: Potential and future research opportunities

Epidemics have been posing significant challenges to health, existence, and continuity. From the emergence of an outbreak to its elimination, managing an epidemic/pandemic entails many operations and supply chain management decisions that can contribute to a lessening of its impact. With these decisions, epidemic-/pandemic-imposed challenges related to forecasting, planning, supply, manufacturing, storage, and transportation can be addressed in an effort to curtail and end the epidemic/pandemic. We have witnessed these disruptions first-hand during the COVID-19 pandemic, which has had a destructive effect on many well-established supply chains, threatening the existence of firms. The role of operations and supply chain management is thus pivotal for navigating epidemics/pandemics. Against this background, we present a systematic literature review on the role of operations and supply chain management during epidemics and pandemics, illustrating its potential and calling for future research. Leveraging bibliographic coupling analysis, we identify major research areas and contributions that serve as a foundation to propel these domains forward. We further critically review these research areas, identifying multiple themes of which many have been perennially relevant, while others have come to the fore only recently due to the COVID-19 pandemic. Our review provides an integrative view of the field, concurrently advancing theory, and offering ten distinct future research directions. Overall, this paper is meant to serve as a starting point for researchers in operations and supply chain management aiming to investigate this increasingly important domain.