An Empirical Study Analyzing the Moderating Effect of Supervisor Support and Mediating Effect of Presenteeism among Eustress, Distress, and Innovative Behavior.

PURPOSE: This article aims to illustrate that stress is not always a negative experience as it can have both positive and negative outcomes. The term "eustress" describes positive stress, while the term "distress" describes negative stress. To date, research on eustress is in the infancy stage. There are approximately 306 items that can be found in the Web of Science core collection for "eustress", while there are 184,714 items found for "distress". Few studies have examined the relationship between presenteeism, stress, and innovative behavior. Thus, the mechanism underlying this pathway still needs to be fully understood. MATERIALS AND METHODS: A survey was conducted among 350 medical healthcare professionals from Pakistan. With the help of SPSS and AMOS, the data were analyzed and the combined effects of the variables were also investigated. RESULTS: According to the current study, a mediation effect has been observed between innovative behavior and stress (eustress and distress). However, supervisor support moderates the relationship between stress and presenteeism and, likewise, between presenteeism and innovative behavior. CONCLUSION: Our analysis of variables establishes empirically robust relationships between the innovative behavior of medical healthcare professionals and the two different dimensions of stress. In addition, it describes a hypothetical alternative situation that explains how employees' innovative work behavior is affected by eustress and distress in the presence of supervisor support. This study could have implications for improving medical healthcare professionals' ability to incorporate innovative behavior into their practice in an effective manner in the future.

A review of novel green adsorbents as a sustainable alternative for the remediation of chromium (VI) from water environments.

The presence of heavy metal, chromium (VI), in water environments leads to various diseases in humans, such as cancer, lung tumors, and allergies. This review comparatively examines the use of several adsorbents, such as biosorbents, activated carbon, nanocomposites, and polyaniline (PANI), in terms of the operational parameters (initial chromium (VI) concentration (Co), temperature (T), pH, contact time (t), and adsorbent dosage) to achieve the Langmuir's maximum adsorption capacity (qm) for chromium (VI) adsorption. The study finds that the use of biosorbents (fruit bio-composite, fungus, leave, and oak bark char), activated carbons (HCl-treated dry fruit waste, polyethyleneimine (PEI) and potassium hydroxide (KOH) PEI-KOH alkali-treated rice waste-derived biochar, and KOH/hydrochloric acid (HCl) acid/base-treated commercial), iron-based nanocomposites, magnetic manganese-multiwalled carbon nanotubes nanocomposites, copper-based nanocomposites, graphene oxide functionalized amino acid, and PANI functionalized transition metal are effective in achieving high Langmuir's maximum adsorption capacity (qm) for chromium (VI) adsorption, and that operational parameters such as initial concentration, temperature, pH, contact time, and adsorbent dosage significantly affect the Langmuir's maximum adsorption capacity (qm). Magnetic graphene oxide functionalized amino acid showed the highest experimental and pseudo-second-order kinetic model equilibrium adsorption capacities. The iron oxide functionalized calcium carbonate (IO@CaCO3) nanocomposites showed the highest heterogeneous adsorption capacity. Additionally, Syzygium cumini bark biosorbent is highly effective in treating tannery industrial wastewater with high levels of chromium (VI).

The Impact of Stress on Innovative Work Behavior among Medical Healthcare Professionals.

BACKGROUND: For health systems, a fundamental challenge is adapting to changes in the patterns of health services that require technological and scientific innovations. The pace of multiple and interconnected challenges mounts extra stress on medical healthcare professionals and reduces their innovative capabilities, especially in low- and middle-income countries. To enhance the innovative capability of medical healthcare professionals under stress, the study seeks any possible correlation between stress and innovation. For that purpose, we sought to investigate the effects of stress on the innovative work behavior of employees and examine the mediating effect of health and moderating effect of supervisor support. MATERIALS AND METHODS: 350 medical healthcare professionals were surveyed in different hospitals in Lahore through a survey regarding stress, health, innovative work behavior, and supervisor support with a final response rate of 89%. SPSS and AMOS were used for the analysis of the data and the investigation of the combined effects of the model. Exploratory (EFA) and Confirmatory Factor Analysis (CFA) were conducted to ensure the convergent and discriminant validity of the factors, while mediation analysis was done to check the mediating role of health. RESULTS: It has been observed that there is partial mediation of health between eustress and innovative work behavior whereas supervisor support does not moderate between eustress and health. Furthermore, the results indicate that distress is negatively associated with innovative behavior. In addition, health fully mediates between distress and innovative work behavior. If distress increases negative effects on health, then supervisor support reduces the negative impact of distress on health. Furthermore, supervisor support also reduces the negative impact of health on innovative work behavior. CONCLUSION: Our study outlines a hypothetical alternative situation that explains how the two emotions of eustress and distress are brought into play in the innovative work behavior of the employees. In addition, supervisors play an important role in influencing the sustainable innovation work behavior of their staff members.

Dynamic analysis of the mathematical model of COVID-19 with demographic effects.

The coronavirus is currently extremely contagious for humankind, which is a zoonotic tropical disease. The pandemic is the largest in history, affecting almost the whole world. What makes the condition the worst of all is no specific effective treatment available. In this article, we present an extended and modified form of SIR and SEIR model, respectively. We begin by investigating a simple mathematical model that describes the pandemic. Then we apply different safety measures to control the pandemic situation. The mathematical model with and without control is solved by using homotopy perturbation method. Obtained solutions have been presented graphically. Finally, we develop another mathematical model, including quarantine and hospitalization.

An empirical study exploring the determinants of stress among medical healthcare professionals.

BACKGROUND: Medical profession is considered as one of the stressful professions. Work related stress level among the general working population is around 18% while the stress level among the healthcare practitioners is around 28%. Multiple stressors contribute to the stress of doctors resulting in negative consequences. OBJECTIVE: The objective of the current study was to determine, categorize and to rank the existing stressors according to their significance for medical healthcare professionals in Pakistan. METHOD: A self-administered questionnaire was used to collect data from 327 doctors. 47.2% were males while 52.8% were females. A structured questionnaire was developed and convenience sampling technique was applied to collect the data from the different positions of healthcare professionals. Exploratory factor analysis (EFA) was performed to categorize and to analyse the underlying structure of stressors. Finally, the stressors were ranked according to their significance. RESULTS: Appropriateness of factor model was judged through Kaiser, Meyer and Olkin (KMO) index which was 0.905, and by Bartlett's Test of Sphericity which resulted significant (Approx. Chi- Square= 1111.529, Df =136, Sig.=0.000). Seventeen stressors were converted into four categories by factor analysis and were supported by both scree plot and eigen values. The variance explained by the first, second, third and fourth component was 20.89%, 19.09%, 16.33%, and 11.72% respectively. The 4 components cumulatively explained 68.03% of the total variability in the data, hence supported the extraction of 4 components. CONCLUSION: There are number of factors which enhance the stress of healthcare professionals. In Pakistan, the major stressor of medical healthcare professionals is "career & reward prospects" followed by "workplace environmental stressor". "Job demand & performance stressor" ranks third among the list of stressors and "interpersonal stressor" ranks fourth according to significance for healthcare professionals.

An Empirical Study Analyzing Job Productivity in Toxic Workplace Environments.

Purpose: This empirical study aims to determine the effects of a toxic workplace environment, which can negatively impact the job productivity of an employee. Methodology: Three hundred questionnaires were randomly distributed among the staff members of seven private universities in Pakistan with a final response rate of 89%. For analysis purposes, AMOS 22 was used to study the direct and indirect effects of the toxic workplace environment on job productivity. Confirmatory Factor Analysis (CFA) was conducted to ensure the convergent and discriminant validity of the factors, while the Hayes mediation approach was used to verify the mediating role of job burnout between the four dimensions of toxic workplace environment and job productivity. A toxic workplace with multiple dimensions, such as workplace ostracism, workplace incivility, workplace harassment, and workplace bullying, was used in this study. Findings: By using the multiple statistical tools and techniques, it has been proven that ostracism, incivility, harassment, and bullying have direct negative significant effects on job productivity, while job burnout was shown to be a statistical significant mediator between the dimensions of a toxic workplace environment and job productivity. Finally, we concluded that organizations need to eradicate the factors of toxic workplace environments to ensure their prosperity and success. Practical Implications: This study encourages managers, leaders, and top management to adopt appropriate policies for enhancing employees’ productivity. Limitations: This study was conducted by using a cross-sectional research design. Future research aims to expand the study by using a longitudinal research design.

Urethrogram-Directed Stereotactic Body Radiation Therapy for Clinically Localized Prostate Cancer in Patients with Contraindications to Magnetic Resonance Imaging.

PURPOSE: Magnetic resonance imaging (MRI)-directed stereotactic body radiation therapy (SBRT) has been established as a safe and effective treatment for prostate cancer. For patients with contraindications to MRI, CT-urethrogram is an alternative imaging approach to identify the location of the prostatic apex to guide treatment. This study sought to evaluate the safety of urethrogram-directed SBRT for prostate cancer. METHODS: Between February 2009 and January 2014, 31 men with clinically localized prostate cancer were treated definitively with urethrogram-directed SBRT with or without supplemental intensity-modulated radiation therapy (IMRT) at Georgetown University Hospital. SBRT was delivered either as a primary treatment of 35-36.25 Gy in five fractions or as a boost of 19.5 Gy in three fractions followed by supplemental conventionally fractionated IMRT (45-50.4 Gy). Toxicities were recorded and scored using the Common Terminology Criteria for Adverse Events version 4.0 (CTCAE v.4.0). RESULTS: The median patient age was 70 years with a median prostate volume of 38 cc. The median follow-up was 3.7 years. The patients were elderly (Median age = 70), and comorbidities were common (Carlson comorbidity index ≥2 in 36%). Seventy-one percent of patients utilized alpha agonists prior to treatment, and 9.7% had prior procedures for benign prostatic hyperplasia. The 3-year actuarial incidence rates of ≥Grade 3 GU toxicity and ≥Grade 2 GI toxicity were 3.2 and 9.7%, respectively, and there were no Grade 4 or 5 toxicities. CONCLUSION: Magnetic resonance imaging is the preferred imaging modality to guide prostate SBRT treatment. However, urethrogram-directed SBRT is a safe alternative for the treatment of patients with prostate cancer who are unable to undergo MRI.