This research was aimed to investigate the connection between the social networking sites and green entrepreneurship intentions through a mediated-moderated model. The study was based on the Shepero’s model of entrepreneurship intentions and Ajzen’s theory of planned behavior. The study design reflects that social networking sites and green entrepreneurship intentions are mediated by risk propensity and self-efficacy, while self-efficacy and green entrepreneurship intentions’ relationship is further moderated by subjective norms. A well-structured and self-administered questionnaire was used to collect data from 500 respondents. The data were analyzed, and hypotheses were tested using PLS-SEM. The study findings confirmed that there exists a positive and significant link between social networking sites and green entrepreneurship intentions through the indirect effect of risk propensity and self-efficacy. However, the findings regarding moderating effect indicated that subjective norms have no significant impact between the self-efficacy and green entrepreneurship intentions. The study findings have significant academic and practical implications for government representatives, policymakers, and entrepreneurial educational institutes that can use these findings.

This study investigated the impact of the use of social networking sites on university graduate students’ green sustainable entrepreneurial intentions by developing a mediating effect. This study provided a research framework using Ajzen’s theory of planned behavior and Shapero’s model to illustrate the relationship between self-efficacy and risk propensity towards green and sustainable entrepreneurial intentions. This research model posited a relationship between the use of social networking sites and green and sustainable entrepreneurship intentions with a mediating role of risk propensity and self-efficacy. The structural questionnaire was adopted, validated, and disseminated to the 300 respondents of university students. This study’s findings confirmed that there was a significant positive effect of the use of social networking sites on green and sustainable entrepreneurship intentions with the indirect impact of risk propensity and self-efficacy. These substantial outcomes have essential practices and academic implications for representatives, policy makers, and entrepreneurial institutes, such as how to direct the use of such relative niche technologies for communication and the role of the internet to promote green and sustainable entrepreneurial practices among young people.

BackgroundWith the exception of areas with high prevalence of tuberculosis, medical thoracoscopy is becoming the diagnostic modality of choice for exudative pleural effusions. The aims of this study were to determine the diagnostic yield and safety of medical thoracoscopy for exudative pleural effusions and ascertain the etiology of such effusions in Qatar.MethodsThis is a retrospective-descriptive study of 407 patients who underwent diagnostic medical thoracoscopy for exudative pleural effusions from January, 2008 till December, 2015 at the only tertiary referral center performing this procedure in Qatar.ResultsTuberculosis was the most common etiology of exudative pleural effusions in Qatar accounting for 84.5% of all causes. Around 85% of patients were young males (mean age of 33 ± 12.1 years). The diagnostic yield of medical thoracoscopy for tuberculous pleural effusion was 91.4%. Malignant pleural effusions accounted for 5.2% of cases. Minor bleeding occurred in 1.2% of cases with no procedure-related mortality observed.ConclusionMedical thoracoscopy is a very safe procedure. Tuberculous pleuritis is by far the most common etiology of exudative pleural effusions in Qatar. Closed needle biopsy is a worth consideration as an initial safe, easy and low-cost diagnostic modality for exudative pleural effusions in this country.

The significance of adding new oral anticoagulants (NOACs) to antiplatelet therapy in patients with acute coronary syndrome (ACS) is unclear. We conducted a meta-analysis to assess the safety and efficacy of adding NOACs (apixaban, rivaroxaban, and dabigatran) to single antiplatelet agent (SAP) or dual antiplatelet therapy (DAPT) in patients with ACS. Seven randomized controlled trials were selected using PubMed or MEDLINE, Scopus, and Cochrane library (inception to August 2017). The summary measure was random effects hazard ratio (HR) with 95% confidence interval (CI). The primary safety outcome was clinically significant bleeding. The secondary efficacy outcome was major adverse cardiovascular events (MACE; composite of myocardial infarction, stroke, and all-cause mortality). In 31,574 patients, addition of NOAC to SAP did not increase the risk of clinically significant bleeding (HR 0.82, 95% CI 0.56 to 1.20, p = 0.31); however, the risk of clinically significant bleeding was significantly increased with NOAC plus DAPT (HR 2.24, 95% CI 1.75 to 2.87, p < 0.001). NOACs had no statistically beneficial effect on MACE when used with SAP (HR 0.82, 95% CI 0.66 to 1.04, p = 0.10); however, a modest reduction in MACE was observed when NOACs were combined with DAPT (HR 0.86, 95% CI 0.78 to 0.93, p < 0.001). In conclusion, in patients with ACS, the addition of NOAC to DAPT resulted in increased risk of clinically significant bleeding, whereas only a modest reduction in MACE was achieved. The addition of NOACs to SAP did not result in significant reduction of MACE or increase in clinically significant bleeding.