Roughly 10% of quasars are “radio-loud,” producing copious radio emission in large jets. The origin of the low-level radio emission seen from the remaining 90% of quasars is unclear. Observing a sample of eight radio-quiet quasars with the Very Long Baseline Array, we discovered that their radio properties depend strongly on their Eddington ratio r Edd ≡ L AGN/L Edd. At lower Eddington ratios r Edd ≲ 0.3, the total radio emission of the AGN predominately originates from an extremely compact region, possibly as small as the accretion disk. At higher Eddington ratios (r Edd ≳ 0.3), the relative contribution of this compact region decreases significantly, and though the total radio power remains about the same, the emission now originates from regions ≳100 pc in size. The change in the physical origin of the radio-emitting plasma region with r Edd is unexpected, as the properties of radio-loud quasars show no dependence with Eddington ratio. Our results suggest that at lower Eddington ratios the magnetized plasma is likely confined by the accretion disk corona and only at higher Eddington ratios escapes to larger scales. Stellar-mass black holes show a similar dependence of their radio properties on the accretion rate, supporting the paradigm that unifies the accretion onto black holes across the mass range.

It is a fact that organization’s success and failure heavily depend on employees and employee engagement is found as one of the important indicators to engage work force in any organization. It has been repeatedly discussed by researchers in the past years and it was established that employee engagement is affected by variation in leadership styles. Many drivers regarding employee engagement have been identified, thus making the concept of employee engagement clear and more understandable for the employer. It also impacts employee performance and wellbeing as found by the past researchers. Leadership style also play a significant role in employee engagement. Leadership style is usually associated with the engagement of an employee and became the most important driver that may create culture of employee engagement in the organization. Leadership style also helps to drive optimal level of productivity in an organization and maintain employee trust. This study aims to identify the engagement level of employees in Malaysian Civil Defense Force and its relationship with leadership style. This research used Multifactor Leadership Questionnaire (MLQ) as a research instrument. SPSS software package for social sciences version 22 was used to analyze the data in this study. Finding of this study shows that leadership styles have a significant impact on employee engagement especially transformational leadership has a significant relationship with employee engagement. Therefore, from the findings of this study, it is suggested for the future researchers to use the mix method in collecting data so that the findings will be more accurate and detailed and can be generalized.

Employees are the key asset of every organization and their performance can influence the goals and objectives of organizations in a positive or negative way. The aim of this study is to develop a theoretical framework in relations to examine the effects of employee’s satisfaction and participation, delegation authority and empowerment on employee’s performance in UAE organizations. Specifically, to get an in-depth understanding of the linkage between delegation authority and employees performance with emphasize on (employee participation and employee satisfaction). This study is only limited to Dubai organizations and future research may be conducted in other countries as well as can assess the moderating role in the defined variables. By integrating employee’s satisfaction and participation, delegation authority and empowerment, and employee’s performance literature, the main contribution of this paper is the analysis of defined variables in Dubai organizations with emphasize on new challenges and to boost up the gap of relevant literature.

Introduction The United Arab Emirates (UAE) has experienced a rapid growth in economy. This growth was paralleled with a drastic rise in non-communicable diseases (NCDs); primarily cardiovascular disease, which accounts for 40% of mortality in UAE. These NCDs are caused by the accumulation of cardiometabolic risk factors (CRFs) such as obesity, dysglycemia, dyslipidemia, hypertension and central obesity. The CRFs are associated with other factors including sociodemography, physical inactivity, tobacco use, and heredity. Objective The objective is to investigate the burden of CRFs and their interrelationship, and to estimate the association with other determinants like sociodemographic status, lifestyle and family history. Methods Data was drawn from the UAE Healthy Future Study participants aged 18 to 40. Demographic and health data was collected by questionnaires. Measurements, blood pressure, and blood samples were collected. CRFs were analyzed by age and gender. Results A total of 5,126 eligible participants were included in the analysis. The age-adjusted prevalence rates were 26.5% for obesity, 11.7% for dysglycemia, 62.7% for dyslipidemia, 22.4% for hypertension and 22.5% for central obesity. Obesity had the strongest relationship with other metabolic factors. Education, employment, smoking and family history had associations with some metabolic markers. Forty percent had ≥2 risk factors. The burden of ≥ 2 CRFs was affected by age (OR 1.1), having lower education (OR 1.37) and having a family history (OR 1.44). Conclusions CRFs are highly prevalent in young adults in the UAE. These risk factors are accumulating and are affected by multiple determinants. Obesity is highly associated with having other CRFs simultaneously. This should be taken into account in the design of target-group-specific prevention of NCD development. Further research is needed to investigate how the clustering manifests in young adults to prevent the early rise of NCDs in the UAE. Key messages Cardiovascular disease and associated risk factors are highly prevalent in the young population (18-40) of the UAE. The clustering of cardiometabolic risk factors occurs early in young people in UAE.

The aim of this study is to enhance understanding in the animated extent of delegation authority and its role in decision making. Precisely, the prime objective of this study is to visualize the concept and propose the effects of delegation authority on decision making along with the mediating role of employees’ performance in the Police department at Dubai. Based on an inclusive and systematic literature review of delegation authority, decision making, and employee’s performance, this study will collect data through self-administered questionnaires based survey in a quantitative manner. The collected data will be analyzed through smart partial least square structure equation modelling for validating the model, testing hypothesis, and finding results. This study will highlight some new insights into the relevant knowledge area. Specifically, the results will contribute to enhance the motivational synergy of upper management to include the employees in decision-making process to improve their performance. This study is only limited to the police department of Dubai and future studies can examine the relationship between defined constructs in other service sector and the moderating role of employees’ performance. By integrating delegation authority, decision making, and employee’s performance literature, the prime contributions of this study are the analysis of defined variables in the police department of Dubai with emphasize on new challenges and to boost up the gap of relevant literature.