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Nadeem AKHTAR(Nadeem AKHTAR ) 한국유통과학회 2023 The Journal of Asian Finance, Economics and Busine Vol.10 No.2
The purpose of this study is to examine the relationship between POS, JR, and Innovation, and to explore the role of job psychological empowerment as a mediator in this relationship. A structured questionnaire was distributed to 25 companies in the petrochemical industry. PLS-SEM 4 was used to analyze the data of 100 valid responses. These findings suggest that employee empowerment (EMPOW) fully mediates the relationship between job resourcefulness (JR) and Innovation (INNOV). The total effect of JR on INNOV is also significant, with a beta coefficient of 0.234 and a t-value of 3.375. However, when the mediating influence of EMPOW is taken into account, the effect of JR on INNOV is no longer significant, with a beta coefficient of 0.100 and a t-value of 1.610. This suggests that EMPOW plays a key role in the relationship between JR and INNOV and that JR may not have a direct impact on Innovation. The study informs the development of interventions or strategies for promoting Innovation in organizations by identifying key factors that facilitate or inhibit the innovation process. The study further contributes to the development of new theories or models on the relationship between perceived organizational support, job resourcefulness, psychological empowerment, and Innovation.
Impact of Approval Goals and Motivation on Consumer Intention: A Retail Context
Muhammad Farooq AKHTAR(Muhammad Farooq AKHTAR ),Norazah Mohd SUKI(Norazah Mohd SUKI ) 한국유통과학회 2022 유통과학연구 Vol.20 No.12
Purpose: The objective of the study is to examine the role of approval goals, subjective norm, internal motivation, external motivation, attitude towards behavior, and perceived behavioral control on retail consumer’s intention to consume fortified food in Pakistan. Research design, data, and methodology: The study was quantitative in nature. That is why the data were collected from 384 respondents approaching retail stores of Lahore, Gujranwala, and Faisalabad using mall intercept survey. Partial least squares structural equation modeling (PLS-SEM) was used to analyze the data. Results: The results show that approval goals significantly influence subjective norms. Secondly, subjective norms positively influence internal and external motivation. Thirdly, attitude towards behavior and internal motivation significantly impacted on intention. However, the findings of the study show, non-significant relationship of external motivation and perceived behavioral control with intention to consume fortified food. Conclusion: Theory of reasoned goal pursuit was used to investigate consumer intention to consume fortified food in Pakistan. This study is helpful for the marketers to create a word-of-mouth strategy to enhance positive word of mouth for the company, which ultimately beneficial to develop the distribution strategy of the firm. Fortified food is full of health enriched ingredients which is beneficial for society at large.
Formulation of Edible Coatings from Alfalfa Saponins to Enhance the Postharvest Quality of Tomatoes
Mahnoor Akhtar,Aqsa Akhtar,Wahab Nazir,Nauman Khalid 한국식품영양과학회 2023 Preventive Nutrition and Food Science Vol.28 No.2
Tomatoes are a major crop for global exports and have significant nutritional benefits. However, their lifespan is limited due to various biotic and abiotic factors. This study aimed to formulate an edible coating using crude alfalfa saponins coupled with decaglycerol monolaurate (ML-750) and polyoxyethylene (20) sorbitan monolaurate (Tween 20), to enhance the postharvest quality and shelf life of tomatoes by preventing spoilage. The effectiveness of alfalfa saponins coatings, both alone, and with ML-750 and Tween 20, was evaluated by comparing their impact on color, texture, overall acceptability, and % weight loss at 4°C and 25°C for 7 days. Significant improvements were observed in the quality attributes of tomatoes, including firmness, aroma, color, texture, and overall acceptability. Crude alfalfa saponins in emulsified form with Tween 20 increased the shelf stability of tomatoes more effectively than uncoated and ML-750 combined coatings. The total soluble solids (TSS) and pH also play a crucial role in determining the quality of the fruits. The results indicated no significant changes in the TSS of tomatoes coated with encapsulated saponins. Subsequently, a gradual increase in the pH of the coated tomatoes was observed on days 5 and 7, respectively. The findings of this study revealed that alfalfa saponins coupled with synthetic emulsifiers may be a beneficial strategy for prolonging the shelf life and improving the postharvest quality of tomatoes.
Akhtar Ali,김성환,김민준,최미영,강상수,조경제,김윤숙,최준영,최완성 한국분자세포생물학회 2017 Molecules and cells Vol.40 No.7
C-X-C chemokine receptor 4 (CXCR4) stimulates cancer metastasis. NF- B regulates CXCR4 expression in cancer cells, and O-GlcNAc modification of NF- B promotes its transcriptional activity. Here, we determined whether CXCR4 expression is affected by O-GlcNAcylation of NF- B in lung metastasis of cervical cancer. We found elevated levels of O-linked-N-actylglucosamine transferase (OGT) and O-GlcNAcylation in cervical cancer cells compared to those in non-malignant epithelial cells and detected increased expression of NF- B p65 (p65) and CXCR4 in cervical cancer cells. Knockdown of OGT inhibited the O-GlcNAcylation of p65 and decreased CXCR4 expression levels in HeLa cells. Thiamet G treatment increased O-GlcNAcylated p65, which subsequently enhanced CXCR4 expression levels. Inhibition of O-GlcNAcylation by 6-Diazo-5-oxo-L-norleucine (DON) treatment decreased p65 activation, eventually inhibiting CXCR4 expression in HeLa cells. Lung tissues from mice engrafted with OGT-knockdown HeLa cells (shOGT) exhibited lower expression of Ki 67 and HPV E6 and E7 oncogenes com-pared to lung tissues from mice engrafted with control HeLa cells (shCTL). In addition, lung tissues from mice engrafted with shOGT cells exhibited lower p65 and CXCR4 immunoreactivity compared to tissues from mice engrafted with shCTL cells. Taken together, our data suggest that p65 O-GlcNAcylation promotes lung me-tastasis of cervical cancer cells by activating CXCR4 expression.
Preparation of graphene-coated anodic alumina substrates for selective molecular transport
Akhtar Sultan,Ali Sadaqat,Kafiah Feras M.,Ibrahim Ahmed,Matin Asif,Laoui Tahar 한국탄소학회 2020 Carbon Letters Vol.30 No.1
In this paper, we report graphene composite membranes prepared by transfer of a layer of chemical vapor deposition graphene onto porous anodic alumina (AA) substrates with nominal pore size 20 and 30 nm, referred as 20AA and 30AA. The coated and uncoated substrates were characterized using optical and electron microscopy techniques. The bare substrates exhibited a smooth surfaces with a well-organized array of hexagonal pores, displaying an average pore size of 17±3 (20AA) and 23±3 nm (30AA). The scanning electron microscopy and atomic force microscopy analyses confrmed the successful transfer of graphene layer onto the target substrates. The molecular transport study was performed by introducing 0.5 M potassium chloride (KCl) and deionized water in a Side-bi-Side Franz difusion cell. The graphene/20AA specimen blocked 66% ions transport, and graphene/30AA membrane about 64%. The ions blockage exceeded 90%, near the characteristics of defect�free graphene when the defects of the transferred graphene were sealed with Nylon 6,6. The results of this study suggest the potential use of graphene on AA substrates for water desalination and gas purifcation applications.
Akhtar, Yasmeen,Alamgir, Mahiuddin,Khan, Mahmud Tareq Hassan,Hannan, JMA.,Choudhuri, M Shahabuddin Kabir Kyung Hee Oriental Medicine Research Center 2007 Oriental pharmacy and experimental medicine Vol.7 No.4
A well known Ayurvedic formulation Ashokarista, used for menstrual disorders has been studied in a single blind randomised placebo controlled clinical trial for the treatment of menorrhagia and dysmenorrhoea. Dysmenorrhoea and menorrhagia patients who were taking Ashokarista (20 ml twice daily) for 10 menstrual cycles had an increase in haemoglobin level. Menorrhagia treated group has shown to reduce the erythrocyte sedimentation rate level that has been increased in the menorrhagia control group. The platelet count, total count and differential count were observed unchanged in the study. The Ashokarista did not affect the SGPT and SGOT level, which signify its lack of toxicity in hepatic function. The treated menorrhagic patients showed an increase in serum albumin content and decrease in blood clotting time, whereas the serum protein content was observed unchanged. There was a significant increase in both serum cholesterol and triglyceride level, which usually associated with the use of oral contraceptives. No major side effects were observed by the clinicians during the study.
Optimal Operation of Tri-Generation Microgrids Considering Demand Uncertainties
Akhtar Hussain,Van-Hai Bui,Hak-Man Kim,Yong-Hoon Im,Jae-Yong Lee 보안공학연구지원센터 2016 International Journal of Smart Home Vol.10 No.10
Tri-generation microgrids, also known as combined cooling, heat and power (CCHP) microgrids, have the potential to suffice the collective thermal and electrical demands of the microgrid residents. However, the energy demand of microgrids cannot be accurately predicted. Therefore, in this paper, robust optimization-based modeling for optimal operation of tri-generation microgrids is proposed. Uncertainty in cooling, heat, and power demands and worst-case realizations of uncertainties are considered. Initially, a deterministic problem is formulated which is then transformed into a min-max robust counterpart. Finally, a tractable robust counterpart is formulated by using the dual of the inner sub-problem. The formulated model is capable of providing feasible solutions for all possible realizations of uncertainties in energy demands (within the uncertainty bounds). The final tractable robust counterpart is simulated in CPLEX and various uncertainty cases are simulated. Simulation results have proved the robustness and effectiveness of the proposed optimization strategy.