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This study aims to propose an unsupervised learning model to evaluate the credibility of disaster-related Twitter data and present a performance comparison with commonly used supervised machine learning models.

First historical tweets on two recent hurricane events are collected via Twitter API. Then a credibility scoring system is implemented in which the tweet features are analyzed to give a credibility score and credibility label to the tweet. After that, supervised machine learning classification is implemented using various classification algorithms and their performances are compared.

The proposed unsupervised learning model could enhance the emergency response by providing a fast way to determine the credibility of disaster-related tweets. Additionally, the comparison of the supervised classification models reveals that the Random Forest classifier performs significantly better than the SVM and Logistic Regression classifiers in classifying the credibility of disaster-related tweets.

In this paper, an unsupervised 10-point scoring model is proposed to evaluate the tweets’ credibility based on the user-based and content-based features. This technique could be used to evaluate the credibility of disaster-related tweets on future hurricanes and would have the potential to enhance emergency response during critical events. The comparative study of different supervised learning methods has revealed effective supervised learning methods for evaluating the credibility of Tweeter data.

The relationships among institutions, entrepreneurship, and economic growth are hotly contested topics. The objective of this present study is to conduct a systematic literature review aimed at comprehensively assessing the relationships between institutional pillars, entrepreneurship and economic growth.

Specifically, a comprehensive analysis of 141 empirical publications was carried out using the PRISMA protocol. The reviewed publications were taken from the Web of Science, Scopus and Google Scholar databases. Thirty-three articles that met the eligibility criteria of quality, relevance and timeliness of the publications were included in the the study.

Three key lessons emerged from the review. First, it was discovered that entrepreneurship and economic growth are influenced by three institutional pillars at various levels, including the regulatory, cognitive and normative pillars. Second, according to the type of institutional quality, the institutional pillars in a causal framework have a good or negative impact on entrepreneurship. Third, novel enterprise creation, self-employment, citizen employment, poverty alleviation, radical innovation, formalization of the informal sector, promotion of competition in existing and new markets, Gross Domestic Product (GDP) growth and the emergence of new business models that significantly improve quality of life.

The study proposes a conceptual framework for further exploring this important relationship based on solid empirical evidence. By providing a theoretically grounded framework, the paper fills the gaps in the literature and helps to clarify the relationship between institutional foundations, entrepreneurship and economic progress.

The purpose of this study is to assess the prevalence of burnout syndrome and its associated factors among medical students at Jazan University, Jazan, Kingdom of Saudi Arabia.

A cross-sectional survey was conducted among 440 randomly selected medical students at Jazan University. The questionnaire used for this study was based on the Copenhagen Burnout Inventory.

The overall prevalence of burnout was estimated at 60.2% (95% CI 55.6–64.8). The prevalence was higher for females (64.1%) than for males (56.2%) but without statistically significant differences (p > 0.05). On average, the students scored the highest averages in the personal burnout category, followed by the study-related and client-related burnout categories. In the multivariate analysis, a lower age (beta = −3.17, p = 0.026), female (beta = −0.896, p = 0.016), and having better burnout knowledge (beta = 0.710, p = 0.025) predict significantly higher personal burnout.

It is necessary to implement strategies to reduce the incidence of burnout among medical students for the sake of a better quality of life for future doctors.

There is a high prevalence of burnout among Jazan’s medical students.

A crisis in the financial sustainability of the public healthcare sector often compels governments to consider privatization. The purpose of this paper is to summarize various strategies to overcome the challenges facing the privatization of academic medical centers (AMCs) in Saudi Arabia.

In this paper, the authors discuss the challenges faced in privatizing AMCs in delivering their core functions such as patient care, medical education and research. Further, the appropriate strategies are listed to overcome these challenges in privatization of AMCs.

The authors described the benefits of privatization that include a reduction in the financial burden on government healthcare expenditure, quick decision making and creation of new financial models to improve healthcare services. On the other hand, the profit motive of private management could create pressure on patients and may divert AMCs from their primary objectives. Therefore, it is imperative for the government to develop and implement appropriate strategies that balance the benefits of privatizing AMCs with eliminating the negative impact of privatization on patient care, medical education and research.

Though AMCs privatization is currently feasible in Saudi Arabia, appropriate strategies are essential to overcome the challenges of its implementation. The government should frame a uniform rules and regulations prior to privatizing public hospitals so that it will fulfill the purpose in an efficient manner.

This study analyses the socioeconomic impact of COVID-19 on government accountability regarding the employment of both national and migrant workforces by bringing evidence from an emerging market. In doing so, this study addresses if/how the government discharged its accountability to the public during this recent global health crisis, which started in late 2019, with its effects still being felt today.

This study is based on a close reading of the relevant news media (local and international), published research and official reports, as well as ten conversations with business managers to analyse the socioeconomic impact of COVID-19 on government accountability in the Kingdom of Saudi Arabia (KSA). This study draws on insights from public choice theory in trying to understand why some governments take an economic perspective while exercising accountability to their population during the pandemic.

It was found that COVID-19 led the government to pursue plans for the localization of the professions and increase employment rates among nationals vs. foreigners or migrant workers. The crisis was exploited by the government to achieve macro socio-political and economic goals, demonstrating its accountability to citizens, rather than foreign workers. This shift shows that difficult and exceptional circumstances can present opportunities for policymakers in emerging markets to achieve national policy and political aims.

This study enhances the author’s understanding of accountability during crises (i.e. crises-induced accountability) in emerging markets. The analyses presented enrich the crisis management literature by highlighting the implicit actions of national leaders that affect the lives and well-being of their constituents, especially vulnerable groups.

In the developing field of nano-materials synthesis, copper oxide nanoparticles (NPs) are deemed to be one of the most significant transition metal oxides because of their intriguing characteristics. Its synthesis employing green chemistry principles has become a key source for next-generation antibiotics attributed to its features such as environmental friendliness, ease of use and affordability. Because they are more environmentally benign, plants have been employed to create metallic NPs. These plant extracts serve as capping, stabilising or hydrolytic agents and enable a regulated synthesis as well.

Organic chemical solvents are harmful and entail intense conditions during nanoparticle synthesis. The copper oxide NPs (CuO-NPs) synthesised by employing the green chemistry principle showed potential antitumor properties. Green synthesised CuO-NPs are regarded to be a strong contender for applications in the pharmacological, biomedical and environmental fields.

The aim of this study is to evaluate the anticancer potential of CuO-NPs plant extracts to isolate and characterise the active anticancer principles as well as to yield more effective, affordable, and safer cancer therapies.

This review article highlights the copper oxide nanoparticle's biomedical applications such as anticancer, antimicrobial, dental and drug delivery properties, future research perspectives and direction are also discussed.

During the COVID-19 pandemic, the three-dimensional (3D) printing community is actively participating to address the supply chain gap of essential medical supplies such as face masks, face shields, door adapters, test swabs and ventilator valves. This paper aims to present a comprehensive study on the role of 3D printing during the coronavirus (COVID-19) pandemic, its safety and its challenges.

This review paper focuses on the applications of 3D printing in the fight against COVID-19 along with the safety and challenges associated with 3D printing to fight COVID-19. The literature presented in this paper is collected from the journal indexing engines including Scopus, Google Scholar, ResearchGate, PubMed, Web of Science, etc. The main keywords used for searches were 3D printing COVID-19, Safety of 3D printed parts, Sustainability of 3D printing, etc. Further possible iterations of the keywords were used to collect the literature.

The applications of 3D printing in the fight against COVID-19 are 3D printed face masks, shields, ventilator valves, test swabs, drug deliveries and hands-free door adapters. As most of these measures are implemented hastily, the safety and reliability of these parts often lacked approval. The safety concerns include the safety of the printed parts, operators and secondary personnel such as the workers in material preparation and transportation. The future challenges include sustainability of the process, long term supply chain, intellectual property and royalty-free models, etc.

This paper presents a comprehensive study on the applications of 3D printing in the fight against COVID-19 with emphasis on the safety and challenges in it.