17 research outputs found
Defective Bismuth Oxide as Effective Adsorbent for Arsenic Removal from Water and Wastewater
No full textIn this work, we report solid-state synthetized defective Bi2O3 containing Bi(V) sites as effective and recyclable arsenic adsorbent materials. Bi2O3 was extensively characterized, and structure-related adsorption processes are reported. Both As(V) and As(III) species-adsorption processes were investigated in a wide range of concentrations, pH values, and times. The effect of several competing ions was also tested together with the adsorbent recyclability
Job satisfaction among nurses in Pakistan: The impact of incivility and informal climate
No full textWork interference with family and turnover intentions in Pakistani banks: the role of psychological breach
No full textThe purpose of this study was to explore the relationship between work-family interference (WIF), organizational and occupational turnover intentions. Further, it was investigated if the relationships are mediated by ‘psychological contract breach’ (PCB) concerning ‘work-family balance obligations’. A study was completed by gathering data using a self-administered survey from employees working in the Pakistani Banking industry (n=359). The results indicate that WIF is positively linked to organizational and occupational turnover intentions. Results of mediation analyses showed a significant indirect effect of WIF, via PCB, on occupational turnover intentions but not on organizational turnover intentions. This study provides insight into the mechanisms through which WIF affects employee turnover intentions. Moreover, this study adds to psychological contract theory by revealing insight into the particular sub of work-family content of work-family balance obligations
Dyeing of Organic Cotton Fabric using Conventional and Ultrasonic Exhaust Dyeing Method
No full textIn this research dyeing behavior of organic cotton woven fabric using ultrasonic technique and conventional dyeing method has been compared. The fabric samples were dyed with reactive dyes Drimarene Red Cl-5B and Drimarene Blue Cl-BR (0.5% owf) using exhaust dyeing method. The samples were ultrasonically dyed at varied temperature (60, 50 and 40oC) for 60, 50, 40 and 30 minutes and for conventional method at varied temperature but at recommended time, 60 minutes. For optimizing the dyeing behavior, the samples were causticized by pad-batch method and then dyed with ultrasonic technique at varied temperature and time. It has been observed organic cotton fabric dyed using ultrasonic exhaust method at 60oC for 50 minutes gives highest (K/S)?max value, excellent fastness property, deeper dye diffusion and less surface deterioration compared to the conventional dyeing method. Moreover, causticized and dyed sample with ultrasonic technique at 60oC for 30 minutes gives colour strength value almost equal to the conventional recommended dyeing method. Hence, dyeing of organic material using ultrasonic exhaust method saves energy and tim
Despotic leadership and job satisfaction among nurses: role of emotional exhaustion
No full textJob satisfaction is reported with chronic issues in the healthcare sector. Specifically, in the current milieu of COVID-19 pandemic, a grave attention has been divulged on the support of the healthcare system and wellbeing of paramedic staff. There is a dearth of research on contemporary leadership in the healthcare sector, particularly in developing countries. Objective of this study was to find the direct negative effect of despotic leadership on job satisfaction through emotional exhaustion among nurses based on Affective Events Theory assumptions. Data from a sample of 265 registered nurses was collected through self-administered questionnaire distribution method deployed in public hospitals using stratified random sampling technique. The data analysis results of PLS-SEM support for the assumed effect revealed that emotional exhaustion played the meditation role between despotic leadership and job satisfaction among nurses. This study advances AET theoretical shores, research knowledge, and suggests considering feasible practical implications for HR and government bodies in the public healthcare sector in developing countries
Workplace incivility and turnover intention among nurses of public healthcare system in Pakistan
No full textThough workplace incivility is a negative behavioral phenomenon that has infiltrated almost every sector, yet, less investigated in the healthcare sector. The healthcare sector is the backbone for economic and well-being for any nation and mainly composed of nurses. Turnover among nurses is a serious challenge to public healthcare facilities in terms of management, financing, and service quality. Based on the COR theory, this study capitalizes investigation on the effects of incivility on turnover intention through burnout and occupational stress. Simple random sampling was deployed on a sample of 265 nurses from 24 public hospitals of Sindh in Pakistan. Data analysis through partial least square and results revealed that workplace incivility has insignificant relation with turnover intention. Whereas, incivility has a significant indirect relationship with turnover intention through burnout and occupational stress. This study suggests that emotional and occupational depletion in public healthcare is high due to incivility at the workplace. Thus, HR managers must devise policies to practice civil behavior to curtail turnover intention problem among nurses. Besides practical benefits, some limitations with potential future research directions are discussed in the end
Complications of laparoscopic cholecystectomy
No full textABSTRACT Objective: The main objective was to determine the complications of laparoscopic cholecystectomy (LC) and its causes at Isra University Hospital, Hyderabad. Methodology: This was a retrospective study carried out from July 2005 to June 2007. Data of all patients undergoing laparoscopic cholecystectomy during the study period and fulfilling the selection criteria was collected and analyzed retrospectively. Results: A total of 216 patients underwent laparoscopic cholecystectomy with an overwhelming majority of females. The overall complication rate was 5%. The complications included bleeding (4/216, 1.8%) from cystic artery and gall bladder bed, port site infection (4/216, 1.8%), bile duct injury (2/216, 0.9%) and colonic injury (1/216, 0.4%). The common causes of these complications were accidental injury to cystic artery, gross spillage of infected bile and erroneous clipping of common bile duct. Conclusions: Bleeding and Port site infections were the commonest complications followed by common bile duct and colonic injuries. The commonest cause of bleeding was cystic artery injury whereas the commonest cause of port site infection was gross spillage of infected bile
Brand experience clustering and depiction of brand satisfaction, brand loyalty and emotional confidence
No full textBrand experience (BE) is essential to depict long-term consumer brand relationships; this study investigates the influence of brand experience on emotional confidence (EC) and subsequent impact of brand satisfaction (BS) and brand loyalty (BL) in the context of car buying. Structural equation modeling was used to affirm the hypothesized relationships. This study further explores dimensions of brand experience: sensory, affective, intellectual and behavioral concerning EC, BS, and BL. Hierarchical cluster analysis was performed to depict the relationship as a consequence, and four clusters were identified. The results of the structural model suggest that there is a positive and statistically significant influence of BE on EC, there is a positive and statistically significant influence of EC on BS, and there is a positive and statistically significant influence of BS on BL. When the direct path from EC to BL was added to the model, it increased the variance explained in BL and coefficient of EC was higher than the coefficient of BS suggesting that EC is an important construct within the formwork. The results of hierarchical cluster analysis identified four clusters; the relationship among EC, BS and BL showed interesting patterns; there were higher correspondents between EC and BL than between BS and BL; the pattern was consistent with the results of the structural model. The data was collected from car showrooms across Karachi city; the respondents were users of the brand
Enhancing thermal stability and viscosity of cellulose ether using propylene carbonate as a transesterification agent for oilfield applications
No full textThis study presents the utilisation of Propylene Carbonate (PC), along with an alkali-based solution, to modify the Hydroxyethyl Methyl Cellulose (HEMC) polymer to mitigate the thermal degradation of cellulose ether. The experimental results from FTIR and XRD analysis confirmed the addition of a new function group to the HEMC backbone and the formation of a new organic carbonate-based cellulose ether. Shear viscosity experiments were conducted at concentrations of 0.50-wt.% to 2-wt.% at ambient and elevated temperatures ranging from 80°C-110°C using a rheometer. All polymeric solutions exhibited shear-thinning behaviour, and the viscosity of polymeric solutions was enhanced by increasing the concentration of modified HEMC solutions. The modified HEMC solutions exhibited higher viscosity at 1000 s-1 shear rate at 110ºC compared to the native HEMC solutions, confirming the enhanced thermal stability of the PC-based modified HEMC solution. Alkali-based modified HEMC solution exhibited low shear viscosity at ambient temperature. The alkali-based polymeric solution’s viscosity was increased by 48% at a high shear rate at 110ºC. In conclusion, 0.50-wt.% and 01-wt.% concentration of alkali-based PC-modified HEMC solution proved efficient in maintaining viscosity under ambient conditions, increasing solubility and exhibiting improved thermal stability at geothermal conditions for oil field applications
