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Teachers’ affective and physical well-being: emotional intelligence, emotional labour and implications for leadership
No full textPurpose: This study aims to examine the role of teachers’ emotional intelligence (EI) and emotional labour (EL) strategies in their affective and physical well-being. Design/methodology/approach: The quantitative data were collected from 436 primary school teachers. Likert-type scales were used to measure the variables. Confirmatory factor analyses were performed for the construct validity of the scales, and path analysis was used to test the hypothesised model. Findings: The final structural equation model suggests that teachers\u27 EI levels and display of appropriate EL strategies significantly reduce their stress, anxiety, burnout and psychosomatic complaints (PSCs). The final model shows that the deep acting strategy, which includes more adaptive emotion regulation strategies, improves teachers’ affective and physical well-being, while the surface acting strategy has a detrimental effect on their well-being. Originality/value: To the best of the authors’ knowledge, this study is the first in the literature to highlight the importance of school teachers’ EI and EL strategies in managing stress, anxiety, burnout (affective well-being),and alleviating PSCs (physical well-being) within a single structural equation model. The findings have implications for educational leaders in fostering teachers’ emotional competencies and resources
Homes in flux: Evaluating personal and social dynamics amid urban variability and mass-produced prototype housing
No full textAmidst the ever-evolving landscape of global urbanization, this research delves into the profound repercussions of dynamic shifts in residential settings on both personal and social interconnectedness. Focusing on the evolution into novel urban constructs and gated enclaves—underscored by the influx of mass-produced prototype houses, with Egypt serving as our representative context of a global phenomenon—we offer a nuanced examination of how these transitions mold individuals\u27 perceptions of personal and social connectedness. Employing a survey instrument administered to a sample of 298 respondents, encompassing retrospectives on childhood homes alongside present-day residences, our inquiry unveils a multifaceted narrative that enriches the tapestry of environmental psychology scholarship. Contrary to expectations, the advent of new cities appears to wield no significance over personal or social bonds, while gated communities surprisingly exhibit a notable positive significance solely with personal connectedness, with no significant relationship observed for social connectedness expected from the label of community. Furthermore, apartments and standalone villas prototype typologies manifest divergent impacts on connectedness, defying conventional assumptions. Gender emerges as a pertinent covariate, intricately intertwined with the present-day sense of personal connectedness. These revelations underscore the intricate nexus of factors dictating residential connectedness, advocating for a holistic integration of tangled personal, social, and physical attributes in residential urban planning and housing architecture. Our study advocates for sustained exploration into the intricate mechanisms underpinning the nexus between residential milieus and interpersonal bonds, urging a nuanced understanding of cultural, geographical, and individual nuances to inform interpersonal sustainable paradigm that promotes social interaction and personal well-being
Designing N, P-doped graphene surface-supported Mo single-atom catalysts for efficient conversion of nitrogen into ammonia: a computational guideline
No full textTuning the surroundings of single-atom catalysts (SACs) has been recognized as a successful approach to enhance their electrocatalytic efficiency. In this study, we utilized density functional theory (DFT) computations to systematically investigate how the coordination environment influences the catalytic performance of individual molybdenum atoms for the nitrogen reduction reaction (NRR) to NH3. Upon comparing an extensive array of coordination combinations, Mo-based SACs were found to feature a distinctive N, P-dual coordination. Specifically, MoN3P1G demonstrates superior performance in the conversion of nitrogen into ammonia with an exceptionally low limiting potential (−0.64 V). This MoN3P1G catalyst preferably follows the distal pathway, with the initial hydrogenation step (*N2 → *NNH) being the rate-determining step. Additionally, MoN3P1G exhibits the ability to suppress competing H2 production, showcases high thermodynamic stability, and holds significant promise for experimental preparation. These findings not only contribute to diversifying the SAC family through localized coordination control but also present cost-effective strategies for enhancing sustainable NH3 production
Evaluating Factors Impacting Polymer Flooding in Hydrocarbon Reservoirs: Laboratory and Field-Scale Applications
No full textPolymer flooding is an enhanced oil recovery (EOR) method used to increase oil recovery from oil reservoirs beyond primary and secondary recovery. Although it is one of the most well-established methods of EOR, there are still continuous new developments and evaluations for this method. This is mainly attributed to the diverse polymers used, expansion of this method in terms of application, and the increase in knowledge pertaining to the topic due to the increase in laboratory testing and field applications. In this research, we perform a review of the factors impacting polymer flooding in both laboratory studies and field-based applications in order to create guidelines with respect to the parameters that should be included when designing a polymer flooding study or application. The main mechanism of polymer flooding is initially discussed, along with the types of polymers that can be used in polymer flooding. We then discuss the most prominent parameters that should be included when designing a polymer flooding project and, based on previous laboratory studies and field projects, discuss how these parameters impact the polymer itself and the flooding process. This research can provide guidelines for researchers and engineers for future polymer flooding research or field applications
Ease of doing entrepreneurship: resilience during disruption and recovery in the recession 2009-2010 and the pandemic 2020-2021
No full textEntrepreneurial endeavouring has been disrupted and recovered, albeit differently across societies. Resilience has been found to be promoted by institutions, especially the economy. The question is, during disruption and recovery, are institutions providing resilience for sustaining ease of starting a business? We analyse national-level effects on changing ease of starting in 202 national-level disruptions and recoveries during the recession, disruption around 2009 and recovery around 2010 and during the pandemic, disruption around 2020 and recovery around 2021. Furthermore, we analyse individuallevel effects on 101,616 entrepreneurs\u27 assessments in the four years. Change in ease of starting was more benign during the pandemic than during the recession, and more benign during recovery than during disruption. Among institutions, economic growth and the informal institution of entrepreneurialism were both bases for resilience promoting change in ease of starting. The findings contribute to contextualising enterprising as shaped by societal conditions sustaining resilience during disruption and recovery
Asymmetric Solid-State Supercapacitor Devices Made of Recycled Lithium-Ion Batteries and Palm Loofah Fibers with Exceptional Stability and Energy Density
No full textGreen solid-state supercapacitors are becoming essential, especially with the increasing demand for energy storage devices. However, the acute desire for electronic devices has led to a surge in electronic waste, which affects the environment, human health, and economy. In this regard, we demonstrate the ability to repurpose recovered materials to fabricate highly compatible solid-state supercapacitor devices. Valuable metals from battery waste (M-BW) are recovered, purified through a straightforward hydrometallurgical method, and reused efficiently as positive electrodes in supercapacitor applications. Furthermore, the potential of carbon recycled from agriculture waste (C-AW) is explored as a carbonaceous material for supercapacitor negative electrodes. The morphological and compositional analyses of both recycled materials were characterized using field emission scanning electron microscopy, high-resolution transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy techniques. Then, M-BW was combined with C-AW to fabricate a hybrid solid-state supercapacitor device (M-BW//C-AW) and tested electrochemically. The device displays high specific capacitance (60 F g-1) and succeeds in providing high energy and power densities (31 Wh kg-1 at 875 W kg-1). Furthermore, it achieves superior stability with up to 50 000 cycles of charges and discharges, indicating its ability to efficiently store and deliver electrical energy with a capacitance retention rate of 100%
Racial differences in prevalence and impact of electrocardiographic subclinical myocardial injury risk factors
No full textBackground: We explored whether the reported racial differences in subclinical myocardial injury (SCMI) are due to variations in the prevalence or differential impact of the SCMI risk factors. Methods: This analysis included 3074 Whites, 1337 Blacks, and 1441 Mexican Americans from the Third National Health and Nutrition Examination Survey who were free of cardiovascular disease. SCMI was defined from standard electrocardiograms as a cardiac infarction/injury score ≥ 10 points. Multivariable logistic regression analysis was used to assess the association of SCMI with its risk factors stratified by race. Multiplicative interaction between each risk factor and race was also examined. Results: Overall prevalence of SCMI was 20.3%, with Mexican Americans exhibiting a lower prevalence than Whites and Blacks (16.5%, 20.4%, and 20.7%, respectively). Whites had more prevalence of dyslipidemia and smoking. Mexican Americans had more diabetes, while Blacks had more hypertension, obesity, and left ventricular hypertrophy. Significant risk factors for SCMI were older age, lower income (\u3c20 K), smoking, diabetes, and no regular exercise. The association of SCMI with age was more pronounced in Mexican Americans (p-value for interaction 0.03), whereas the associations of SCMI with smoking, no-regular exercise, and diabetes were stronger in Whites (p-value for interaction 0.04, 0.001, 0.007, respectively). Conclusions: Heterogeneity in the racial differences in the prevalence of SCMI risk factors exists, but they do not explain racial differences in SCMI. The stronger associations of smoking, diabetes, and no regular exercise with SCMI partially explain the higher prevalence of SCMI in Whites
Sinai Arabic MS 68: A Multidisciplinary Approach to the Study of a Unique Arabic Gospel Manuscript
No full textThe study of the Bible in Arabic has become a topic of increasing interest among scholars of the intellectual history of the Islamic world, as well as Christianity in areas under Islamic rule. Nevertheless, most Arabic Bible manuscripts remain largely, or even totally, unstudied. While the textual and theological dimensions of these translations are attracting increasing scholarly attention, their linguistic analysis remains dominated by a traditionalist approach now completely outdated. This paper has two goals, one descriptive and one methodological. First, we aim to fully describe the Arabic Gospel manuscript Sinai Arabic MS 68, traditionally dated to the 14th century CE but which we date to the 16th century CE, perhaps in the aftermath of the fall of the Mamluk empire. Our description focuses on the linguistic nature of the manuscript, but includes discussions of its history and materiality as well. Second, we propose a methodological approach to studying the language of the text that takes seriously non-Classical components and contextualizes these features within what is known from other such non-Classical compositions, including especially Christian manuscripts. We conclude that the manuscript was produced by artisans and a scribe with significant courtly experience, and shows evidence of multiple normative linguistic registers, which argues strongly for the importance of broadening the framework within which scholars interpret such \u27Middle Arabic\u27 texts
Experimentally Investigating the Strengthening Effect of NSM-GFRP Bars on the Capacity of RC Slabs
No full textThis study aims to investigate the strengthening effect of GFRP bars on the capacity of RC slabs when subject to flexure loading. The objective is to show the effect of debonding failure on the capacity of the GFRP strengthened slabs relative to the different variables used. The variables used are different bonding lengths, diameters, and numbers of GFRP bars in strengthening RC slabs. The work presents the details of the adopted experimental investigation and the results of the flexural tests performed on twelve slabs with the different variables. These results are adopted to validate the currently available design provisions of the ACI code of practice for using NSM GFRP to strengthen RC slabs. The results showed that strength gain is directly proportional to the reinforcing ratio. However, the deflections of all strengthened and un-strengthened specimens did not significantly change
Versatile Nanoparticulate Systems as a Prosperous Platform for Targeted Nose-Brain Drug Delivery
No full textThe intranasal route has proven to be a reliable and promising route for delivering therapeutics to the central nervous system (CNS), averting the blood-brain barrier (BBB) and avoiding extensive first-pass metabolism of some drugs, with minimal systemic exposure. This is considered to be the main problem associated with other routes of drug delivery such as oral, parenteral, and transdermal, among other administration methods. The intranasal route maximizes drug bioavailability, particularly those susceptible to enzymatic degradation such as peptides and proteins. This review will stipulate an overview of the intranasal route as a channel for drug delivery, including its benefits and drawbacks, as well as different mechanisms of CNS drug targeting using nanoparticulate drug delivery systems devices; it also focuses on pharmaceutical dosage forms such as drops, sprays, or gels via the nasal route comprising different polymers, absorption promoters, CNS ligands, and permeation enhancers