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909 result(s) for "Safdar, Muhammad"
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Extraction and quantification of polyphenols from kinnow (Citrus reticulate L.) peel using ultrasound and maceration techniques
An investigation was carried out to extract polyphenols from the peel of kinnow (Citrus reticulate L.) by maceration and ultrasound-assisted extraction (UAE) techniques. The antioxidant potential of these polyphenols was evaluated using ferric reducing antioxidant power (FRAP), 2,2-diphenyl-1-picrylhydrazyl (DPPH), and superoxide radical scavenging assays; and their antimicrobial activity was assessed against bacterial strains Staphyloccoccus aureus, Bacillus cereus, and Salmonella typhimurium. The highest extraction yield was obtained through the solvent ethanol at 80% concentration level, whereas UAE was a more efficient technique and yielded comparatively higher polyphenol contents than maceration. Maximum polyphenols were extracted with 80% methanol [32.48 mg gallic acid equivalent (GAE)/g extract] using UAE, whereas minimum phenolics (8.64 mg GAE/g extract) were obtained with 80% ethyl acetate through the maceration technique. Elevated antioxidant activity of kinnow peel extracts was exhibited in three antioxidant assays, where 80% methanolic extracts showed the highest antioxidant activity (27.67±1.11mM/100 g for FRAP) and the highest scavenging activity, 72.83±0.65% and 64.80±0.91% for DPPH and superoxide anion radical assays, respectively. Strong correlations between total polyphenols and antioxidant activity were recorded. Eleven phenolic compounds—including five phenolic acids and six flavonoids—were identified and quantified by high performance liquid chromatography. Ferulic acid and hesperidin were the most abundant compounds whereas caffeic acid was the least abundant phenolic compound in kinnow peel extracts. Maximum inhibition zone was recorded against S. aureus (16.00±0.58 mm) whereas minimum inhibition zone was noted against S. typhimurium (9.00±1.16 mm). It was concluded that kinnow mandarin peels, being a potential source of phenolic compounds with antioxidant and antimicrobial properties, may be used as an ingredient for the preparation of functional foods. [Display omitted]
Green bond as a new determinant of sustainable green financing, energy efficiency investment, and economic growth: a global perspective
The purpose of the study is to test the role of green bond financing on energy efficiency investment and economic growth. To achieve the study objective, fuzzy decision-making modeling technique is applied. The results revealed that bank loans are now the main source of financing for energy efficiency projects. Project-based financing might be replaced with Energy Performance Contracts (EPC) warranting energy efficiency investment. Moreover, green banks invest both public and private funds in energy efficiency promoting economic growth. The usage of green bonds for financing environmentally beneficial projects or companies is limitless. Providing for screening energy efficiency investment proposals with small payback hurdle rates might have large opportunity costs. Green bonds can be used to remove the financing barriers for green finance and sustainability tool. On this, study provides policy implications to key stakeholders; if suggested policy suggestions implemented successfully, these would help to enhance scope of green bond financing to uplift energy efficiency financing and green growth successfully.
CSR, Co-Creation and Green Consumer Loyalty: Are Green Banking Initiatives Important? A Moderated Mediation Approach from an Emerging Economy
The homogenization of the banking segment has made it difficult for banking institutions to practice the quality of services that are needed in order to retain consumers. Thus, these days, finding ways to increase consumer loyalty—especially green loyalty—has become a challenge for the banking industry around the planet. Research has long acknowledged that corporate social responsibility (CSR) is a strategic concern that could help organizations to increase consumer loyalty. However, the impact of CSR practices on green consumer loyalty is rarely addressed in the extant literature. Hence, the present research investigated the impact of CSR on green consumer loyalty with the mediating effect of co-creation in the banking industry of Pakistan. The study also introduced green banking initiatives as a moderator between the mediated relation of CSR and green consumer loyalty, with the intention that such a moderator would strengthen this indirect relationship. The structural equation modeling technique was used for the data analysis. The results confirm that CSR enhances consumer loyalty, and that co-creation partially mediates this relationship. Furthermore, green banking initiatives further strengthen this relation. The results of the current survey could help banking institutions learn how they can develop core strategic considerations based on the integration of CSR co-creation and green banking initiatives.
Determinants of immunization in polio super high-risk union councils of Pakistan
•48.3% children are fully vaccinated in the super-high-risk union councils districts of Pakistan.•Vaccination coverage varies considerably across the super-high-risk union council districts.•Dropout rate between vaccine visits is as higher as 60.5% and as low as 4.9% in the districts.•Full immunization is associated with parental education level. The current polio epidemiology in Pakistan poses a unique challenge for global eradication as the country is affected by ongoing endemic poliovirus transmission. Across the country, 40 union councils (UCs) which serve as core reservoirs for poliovirus with continuous incidences of polio cases are categorized as super-high-risk union councils (SHRUCs). A cross-sectional survey was conducted in 39 SHRUCs using a two-stage stratified cluster sampling technique. 6,976 children aged 12–23 months were covered. A structured questionnaire was used for data collection. Data were analyzed using STATA version 17. Based on both vaccination records and recall, 48.3% of children were fully-, 35.4 % were partially-, and 16.3% were non-vaccinated in the SHRUC districts. A child is considered fully vaccinated when h/she completed vaccination for BCG, OPV0, OPV 1-3, Penta 1-3, PCV 1-3, IPV, and MCV1. Vaccination cards were seen for over half of the children in the SHRUC districts of Khyber Pakhtunkhwa (KP) and the majority of the SHRUC districts in Sindh, except for the SHRUC district of Malir the districts of Balochistan. Results for polio vacancies show that 60.9% of children from the SHRUC districts were vaccinated with at least three doses of OPV and one dose of IPV, while 20.4% were vaccinated with any OPV doses or IPV and 18.7% of children did not receive any polio vaccines. The dropout rate between vaccine visits was higher than the WHO-recommended cutoff point of 10% for all vaccine doses in the SHRUC districts. The likelihood of being fully vaccinated was higher among the children of educated parents. Full vaccination was found significant among the children of any SHRUC districts compared to district Killa Abdullah. Context-specific strategies with more focus on community engagement and targeted mobilization, along with robust monitoring mechanisms, would help address the underlying challenges of under-immunization in the SHRUCs.
Exploring the Relationship between Renewable Energy Sources and Economic Growth. The Case of SAARC Countries
The purpose of this study is to examine the relationship between renewable energy sources and economic growth of the South Asian Association for regional cooperation (SAARC) countries. This study uses three main renewable energy sources, namely geothermal, hydro, and wind.This study collects data set from SAARC countries from 1995 to 2018 and applies a fixed effect test and panel vector error correction model (PVECM) for data analysis. The overall results show that all three renewable energy sources have a positive significant impact on economic development among SAARC countries’ economies. Moreover, hydropower renewable energy has more effects and influences on economic growth as compared to the other two individual sources of renewable energy.
The Impact of Board Gender Diversity and Foreign Institutional Investors on the Corporate Social Responsibility (CSR) Engagement of Chinese Listed Companies
The main purpose of this research is to examine the impact of board gender diversity and foreign institutional investors on the corporate social responsibility engagement of Chinese listed companies by considering a sample from the China Stock Market and Accounting Research (CSMAR) database of all non-financial firms listed on the Shanghai stock exchange and the Shenzhen stock exchange during the period from 2008–2015. The CSR is engaged by using the data from the CSMAR database at the firm level, and ranks the CSR disclosures of Chinese companies separately. The recent CSR promotion in China produced a visible increase in attracting female members on the board and members as foreign institutional investors by Chinese listed companies. The findings also showed that the greater the presence of female directors on the board, the stronger the CSR engagement would be. According to critical mass theory and team dynamics, these findings further broaden the accounts that emphasize social networks based on gender. Hence, female members on the board of directors emerged to be significant as a gender mix with extending CSR change. Therefore, our results added a new aspect to the emerging literature on CSR-engagement and gender especially in China. Due to intense political forces and networks in the Chinese listed entities, foreign institutional investors (FIIS) have less incentive to enhance CSR engagement further. Thus, the impact of foreign institutional investors on CSR engagement is as yet unknown, but we improved our knowledge about how the international aspects affect CSR in China. Furthermore, our results are robust, which concern control variables under consideration.
A Contemporary Issue of Micro-Foundation of CSR, Employee Pro-Environmental Behavior, and Environmental Performance toward Energy Saving, Carbon Emission Reduction, and Recycling
The contemporary literature has largely addressed corporate social responsibility (CSR) at the macro or institutional level, whereas its effect at the micro-level is largely ignored. In addition, contemporary researchers have also ignored the importance of employee pro-environmental behavior to reduce the environmental footprint of small and medium enterprises (SMEs). With this background, the present study attempts to decrease the environmental footprint of the SME sector of China by implementing CSR at the micro-level through the involvement of employees because employees spend a significant amount of their time at workplaces, and hence their environment-related behavior may significantly contribute to improve the natural environment. In this regard, here we examined the impact of the micro-foundation of CSR on SMEs’ environmental performance with mediating effect of employees’ pro-environmental behavior. The data were collected from the different organizations in China. Our sample constitutes a supervisor–subordinate dyad from which we collected 562 filled questionnaires (281 from each). We used the structural equation modeling technique using AMOS software for data analysis, the results show that CSR, directly and indirectly, through employee’s pro-environmental behavior affects the environmental performance of SMEs, and employee pro-environmental behavior partially mediates this relationship. The findings of the present study are helpful for policymakers of the SME sector of China to address widespread environmental issues caused by their business operations.
Integrative analysis reveals methylenetetrahydrofolate dehydrogenase 1-like as an independent shared diagnostic and prognostic biomarker in five different human cancers
Background: Defects in methylenetetrahydrofolate dehydrogenase 1-like (MTHFD1L) expression have earlier been examined in only a few human cancers. Objectives: Multi-omics profiling of MTHFD1L as a shared biomarker in distinct subtypes of human cancers. Methods: In the current study, for the multi-omics analysis of MTHFD1L in 24 major subtypes of human cancers, a comprehensive in silico approach was adopted to mine different open access online databases including UALCAN, Kaplan–Meier (KM) plotter, LOGpc, GEPIA, Human Protein Atlas (HPA), Gene Expression across Normal and Tumor tissue (GENT2), MEXPRESS, cBioportal, STRING, DAVID, TIMER, and Comparative Toxicogenomics Database (CTD). Results: We noticed that the expression of MTHFD1L was significantly higher in all the analyzed 24 subtypes of human cancers as compared with the normal controls. Moreover, MTHDF1L overexpression was also found to be significantly associated with the reduced overall survival (OS) duration of Bladder urothelial cancer (BLCA), Head and neck cancer (HNSC), Kidney renal papillary cell carcinoma (KIRP), Lung adenocarcinoma (LUAD), and Uterine corpus endometrial carcinoma (UCEC). This implies that MTHFD1L plays a significant role in the development and progression of these cancers. We further noticed that MTHFD1L was also overexpressed in BLCA, HNSC, KIRP, LUAD, and UCEC patients of different clinicopathological features. Pathways enrichment analysis revealed the involvement of MTHFD1L-associated genes in five diverse pathways. We also explored few interesting correlations between MTHFD1L expression and its promoter methylation, genetic alterations, CNVs, and between CD8+ T immune cells level. Conclusion: In conclusion, our results elucidated that MTHFD1L can serve as a shared diagnostic and prognostic biomarker in BLCA, HNSC, KIRP, LUAD, and UCEC patients of different clinicopathological features.
CSR as a Potential Motivator to Shape Employees’ View towards Nature for a Sustainable Workplace Environment
Prior studies in the contemporary literature have largely ignored the important role of corporate social responsibility (CSR) in shaping employees’ views of self and nature. Although researchers have recently started to pay considerable attention to explore the link between CSR and environmental sustainability, determining how CSR can be effective in shaping the proenvironmental behavior of employees that is missing in the existing literature. The objective of the present research study is to test the impact of microlevel CSR activities to induce environmental performance of an organization with a mediating effect of employees’ pro-environmental behaviors. This study argues that CSR activities of an organization motivate the workers to rethink the relationship between self and nature; hence, they are encouraged to participate in activities that are helpful in terms of preserving the environment, such as participating in pro-environmental activities at the workplace. The proposed model of the study was tested in the banking sector of Pakistan and analyzed by using the structural equation modeling (SEM) technique in AMOS software. The results revealed that microlevel CSR activities, using employee proenvironmental behaviors as a mediator, directly and indirectly influence environmental performance of a bank. The results of the present study are helpful for policymakers of different banking institutions to understand how they can reduce the environmental footprint of their bank by using a well-planned CSR program that can induce transcendent emotions in employees to create a sustainable environment.
Exploring the Impact of Corporate Social Responsibility Communication through Social Media on Banking Customer E-WOM and Loyalty in Times of Crisis
Previous studies have largely explored corporate social responsibility (CSR) for organization-centric outcomes to achieve organizational performance, organizational commitment, or organizational citizenship behavior. However, the importance of CSR to achieve customer-centric outcomes is underexplored to date. Contemporary researchers have recently turned their attention toward CSR from the viewpoint of customer-centric outcomes. Therefore, the present study attempts to test the influence of CSR communication on social media and customer loyalty in the banking sector of a developing economy in times of crisis. This study also investigates the mediating effect of electronic word of mouth (E-WOM) with this relationship. The data of the present study were collected from different banking customers using a self-administered questionnaire. The empirical findings of this study validated that the CSR communication of a bank on social media increases customer loyalty, and E-WOM partially mediates this relationship. This study will be helpful for the banking sector to understand the importance of CSR communication to increase customer loyalty, which is very important for every bank in times of crisis.