Insufficient blood levels of the neurohormone vitamin D are associated with increased risk of COVID-19 severity and mortality. Despite the global rollout of vaccinations and promising preliminary results, the focus remains on additional preventive measures to manage COVID-19. Results conflict on vitamin D’s plausible role in preventing and treating COVID-19. We examined the relation between vitamin D status and COVID-19 severity and mortality among the multiethnic population of the United Arab Emirates. Our observational study used data for 522 participants who tested positive for SARS-CoV-2 at one of the main hospitals in Abu Dhabi and Dubai. Only 464 of those patients were included for data analysis. Demographic and clinical data were retrospectively analyzed. Serum samples immediately drawn at the first hospital visit were used to measure serum 25-hydroxyvitamin D [25(OH)D] concentrations through automated electrochemiluminescence. Levels < 12 ng/mL were significantly associated with higher risk of severe COVID-19 infection and of death. Age was the only other independent risk factor, whereas comorbidities and smoking did not contribute to the outcomes upon adjustment. Sex of patients was not an important predictor for severity or death. Our study is the first conducted in the UAE to measure 25(OH)D levels in SARS-CoV-2-positive patients and confirm the association of levels < 12 ng/mL with COVID-19 severity and mortality.

Purpose: The purpose of this paper is to examine the relation between audit committee (AC) and a set of other corporate governance mechanisms in one of the emerging economies, United Arab of Emirates (UAE). In particular, the current study examines whether an effective AC can serve as a substitute or as a complement mechanism to board characteristics and ownership structure of Emirati listed non-financial companies. Design/methodology/approach: Using substitution and complementary theories, a panel data from 48 nonfinancial companies listed on the UAE Stock Exchanges [Abu Dhabi Stock Exchange and Dubai Financial Market] during the period between 2011 and 2013 were used in the current study. A composite measure of four proxies has been used to measure the AC effectiveness, namely, AC size, independence, financial expertise and diligence. To test the hypotheses formulated for the study, a logistic regression model was used to identify the influence of a set of board characteristics and ownership structure variables on the effectiveness of the AC after controlling for firm size, auditor type, industry type and profitability. Findings: While AC effectiveness appeared to be positively associated with board size and board independence, it is negatively associated with CEO duality. This points to a complementary governance relation. On the other hand, the negative relationship between AC effectiveness and each of institutional and government ownership suggests substitutive relations. Research limitations/implications: The main shortcoming of the current study is that it examines the influence of a certain set of corporate governance factors on the effectiveness of AC. Other corporate governance mechanisms may, however, contribute to the effectiveness of AC. The findings of the study can be used by companies’ managements and regulators in the UAE to improve the corporate governance system. Originality/value: To the best of researchers’ knowledge, this study provides the first evidence about the interaction among multiple governance mechanisms required by the code of corporate governance issued by the UAE Ministry of Economy in 2009. The current paper is expected to add to the limited AC literature in Middle East and North African countries in general and Arab World in particular.

The objective of this study is to explore the relationship between corporate performance and corporate governance by companies listed on the Palestinian Stock Exchange. Accounting and market performance measures were used to proxy corporate performance. Corporate governance represented by the board of directors' size, the frequency of the annual meetings of the board, existence or otherwise of an audit committee, institutional investors ownership and foreign ownership. To achieve the objective of the study, all non-financial companies listed on the exchange and published their annual reports during the period between 2010 and 2012 were used. The result of the analysis revealed that corporate performance is negatively associated with corporate governance. This implies that the result is inconsistent with agency theory. This might be due to the fact that corporate governance in Palestine is still at its infancy stage.

Unhealthy and unsustainable nutrition is a major concern globally, including in the United Arab Emirates. Although many education programs have been conducted, diet-related illnesses remain prevalent. This study aims to identify the barriers between knowledge and practice of sustainable healthy diets to achieve long-term health, among students of Zayed University in the United Arab Emirates. An online questionnaire was sent to Zayed University (ZU) students over 18 years of age, using snowball sampling. The participants achieved a mean score of 5.6 out of 11 in nutritional knowledge, and a mean score of 3.4 out of 6 in healthy habits. The only barrier that significantly affected dietary habits was not knowing how to plan a diet (p = 0.025). Accordingly, having good nutritional knowledge was significantly related to improved dietary habits (p < 0.001). In addition, school curriculums (p = 0.004), doing one’s own research (p < 0.001), and social media (p < 0.001) were significantly related to improved nutritional knowledge. The most commonly reported motivators for a healthier diet were “to keep their body healthy for a long time” and “to maintain a healthy weight” (72.6% and 70.1%, respectively). Overall, among ZU students the most significant barrier to achieving sustainable healthy nutrition was lack of knowledge. Education methods such as school curriculums, individual research, and social media were effective. Topics such as how to plan a diet, how to keep the body healthy, and how to maintain a healthy weight are of general interest.

We provide an overview of the state of the higher education system in the UAE, and investigate its capacity to supply Dubai’s economy with skilled labor and achieve the emirate’s strategic social development objectives. We examine various characteristics of the higher education sector and discuss their inherent strengths and weaknesses in light of Dubai’s labor market needs. Our findings reveal that the UAE higher education sector has witnessed an impressive growth since 1997 mostly led by a vigorous expansion of the private higher education sector. This situation led to a substantial growth in higher education opportunities for the UAE population. However, the lack of development of graduate studies and the lower quality of graduates, as perceived by both employees and employers, represent the main challenges to the capacity of the sector in fulfilling the needs of Dubai’s economy.