Search results
1 – 9 of 9Aniqa Junaid, Murtaza Najabat Ali, Mariam Mir and Sadia Hassan
The purpose of this paper is to present synthesis protocol of hydrogel composed of Chitosan (CS) and Poly(ethylene glycol) (PEG) and establish an understanding of its thermal…
Abstract
Purpose
The purpose of this paper is to present synthesis protocol of hydrogel composed of Chitosan (CS) and Poly(ethylene glycol) (PEG) and establish an understanding of its thermal responsive behavior. It aims to prove the basic temperature sensing ability of a novel CS-PEG-based hydrogel and define its sensing span.
Design/methodology/approach
This study includes synthesis of CS and PEG-based hydrogel samples by first performing dissolution of both constituents, respectively, and then adding Glutaraldehyde as the cross-linking agent. It further includes proposed hydrogel’s swelling studies and dynamic behavior testing, followed by hydrogel characterization by Fourier transform infrared spectroscopy, X-ray diffraction and SEM. The last section focuses on the use of proposed hydrogel as a temperature sensor.
Findings
Detailed experimental results show that a hydrogel comprising of CS and PEG presents a thermally responsive behavior. It offers potential to be used as a temperature responsive hydrogel-based sensor which could be used in medical applications.
Originality/value
This research study presents scope for future research in the field of thermally responsive bio-sensors. It provides basis for the fabrication of a thermal responsive sensor system based on hydrogels that can be used in specific medical applications.
Details
Keywords
Mariam Mir, Murtaza Najabat Ali, Umar Ansari, Patrick J. Smith, Amber Zahoor, Faisal Qayyum and Sabtain Abbas
The fabrication and characterization of a hydrogel-based conductometric sensor have been carried out. The purpose of this research is to fabricate a small robust hydrogel-based…
Abstract
Purpose
The fabrication and characterization of a hydrogel-based conductometric sensor have been carried out. The purpose of this research is to fabricate a small robust hydrogel-based conductometric sensor for real-time monitoring of pH in the physiological range.
Design/methodology/approach
A pH-responsive Chitosan/Gelatin composite hydrogel has been used for this purpose. This study reports and analyzes the sensing response obtained from four hydrogel compositions with varying Chitosan/Gelatin ratios. The pH-responsive nature of the hydrogel has been mapped out through volumetric and conductometric tests. An attempt has been made to correlate these characteristics with the physico-chemical nature of the hydrogel through scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction techniques.
Findings
The four hydrogel compositions differed on the basis of gel composition ratios; the conductometric analysis results prove that the sensor with the hydrogel composition (Chitosan 2 per cent, Gelatin 7 per cent, ratio 1:2) produces the best pH resolution in the pH range of 4 to 9. The sensing mechanisms and the differences obtained between individual sensor outputs have been discussed in detail. On the basis of this extensive in vitro assessment, it has been concluded that while key pendant functional groups contribute to pH-responsive characteristics of the hydrogel, the overall sensitivity of the sensors gel component to surrounding pH is also determined by the crystalline to amorphous ratio of the hydrogel composite, its interpenetrating cross-linked structure and the relative ratio of the hydrophilic to the pH-sensitive components.
Practical implications
The conductometric sensor results prove that the fabricated sensor with the shortlisted hydrogel composition shows good sensitivity in the physiological pH range (4 to 9) and it has the potential for use in point of care medical devices for diagnostic purposes.
Originality/value
This is the first reported version of the fabrication and testing and analysis/comparison of a hydrogel-based conductometric sensor based on this composition. The work is original and has not been replicated anywhere.
Details
Keywords
Bilal Afsar, Mariam Masood and Waheed Ali Umrani
The purpose of this paper is to examine the effect of transformational leadership on an employee’s innovative work behavior through job crafting. In addition, the study explores…
Abstract
Purpose
The purpose of this paper is to examine the effect of transformational leadership on an employee’s innovative work behavior through job crafting. In addition, the study explores the moderating effect of knowledge sharing behavior in the relationship between transformational leadership and innovative work behavior.
Design/methodology/approach
A quantitative and cross-sectional approach was used to collect data. Data were collected from 325 subordinates and 126 supervisors working in the hotel industry. Subordinates were asked to rate transformational leadership style of their respective supervisors and their own job crafting and knowledge sharing behaviors. Supervisors were asked to rate innovative work behavior of their respective subordinates.
Findings
The results showed that job crafting behaviors (increasing structural job resources, increasing social resources and increasing job challenges) mediated the effect of transformational leadership on an employee’s innovative work behavior. Moreover, knowledge sharing moderated the relationship between transformational leadership and innovative work behavior.
Practical implications
Organizations may reap the benefits of an innovative workforce by selecting, nurturing and developing transformational leaders who facilitate employees to proactively craft a challenging and resourceful work environment.
Originality/value
This is the first study to test the mediating effect of job crafting behaviors on the relationship between transformational leadership and innovative work behavior.
Details
Keywords
The purpose of this paper is to provide a gender-sensitive analysis of economic agency in Islamic economic philosophy.
Abstract
Purpose
The purpose of this paper is to provide a gender-sensitive analysis of economic agency in Islamic economic philosophy.
Design/methodology/approach
A critical review of classical ethics literature and the concept of khilafah is undertaken and discussed in conjunction with the current understanding of homo Islamicus.
Findings
Building on the principles of khilafah, the concept of homo Islamicus is a pious stand-in for the flawed homo economicus. Among its flaws is the complete absence of a discussion of women as economic agents. To remedy this the discipline must acknowledge explicitly the denial of women and gender from the discussion of moral agency and include gender as a category of analysis for economic agency. This is only possible by: (1) introducing a non-patriarchal reading of khilafah as the model of agency and (2) by operationalising taqwa as the cardinal virtue of the economic agent instead of neoliberal rationality.
Research limitations/implications
If Islamic economic philosophy is to contend as an alternative mode of economics, it must consider gender and class dimensions in its micro-foundation discussion, economic agency is one of them.
Originality/value
This study reveals the patriarchal readings that are part of the foundation of the concept of the economic agent in Islamic economics, problematising it and providing a gender-sensitive concept of economic agency.
Details
Keywords
In this chapter, I uncover the jail diaries of a revolutionary woman of the 20th century Pakistan, Akhtar Baloch. Although feminism in Pakistan has oscillated between liberal and…
Abstract
In this chapter, I uncover the jail diaries of a revolutionary woman of the 20th century Pakistan, Akhtar Baloch. Although feminism in Pakistan has oscillated between liberal and postcolonial camps, through reading Akhtar's diaries, compiled as Prison Narratives (2017), I center Akhtar's own struggles for Sindh, along with the resistance of the women she met in the prison convicted for the murders of their husbands, to better theorize Marxist Feminism in Pakistan that overturns the structures that commodify women through love and revolution. My article will show the commodification of women's bodies; the “sale” of women through marriage as the goal of this commodification; the lovelessness and alienation women experience in commodified marriages; the unexpected fall in love with someone whom it is subversive for the commodified wife to love; the subversion of this unexpected event that leads to the attempted resolution of this tension through murder; the separation of the lovers through the incarceration of the woman by the capitalist-patriarchal state; and finally, the unexpected outcome (albeit the most common one) that the male lover abandons his female lover once she's jailed, but the defiantly brave female lover finds platonic love in jail through close female friendships with other women who are similarly brave in both love and in revolution. Through this exposition, I show that Akhtar's diaries provide a way for us to build on Marxist Feminist theory through a theory of love and revolution from a Sindhi feminist perspective.
Details
Keywords
In the analysis of Third World economic and rural development, Malaysia represents an intriguing and somewhat special case. Many applaud the impressive growth registered since…
Abstract
In the analysis of Third World economic and rural development, Malaysia represents an intriguing and somewhat special case. Many applaud the impressive growth registered since independence and particularly in recent years; as Vokes testifies, Malaysia is “one of the most successful cases of economic development in the Third World.” It has managed a structural transformation of its economic base from one relying on primary commodities to one in which manufacturers now play a central role; not denying the intermittent problem of fluctuating growth and uneven development.
Inês Lopes Santos and Dina Miragaia
Most adults do not follow the minimum requirements for physical activity despite the benefits such activity can provide toward improving quality of life. On average, an adult…
Abstract
Purpose
Most adults do not follow the minimum requirements for physical activity despite the benefits such activity can provide toward improving quality of life. On average, an adult spends 60% of daily hours in the workplace, making it essential to create working environments that are favorable to avoiding harmful effects on the health of workers. Toward this end, the application of physical activity programs in a work context is one of the possible interventions. This study aims to carry out a systematic review of the literature to identify the impact of physical activity programs applied in the workplace, on employee wellness and organizational productivity.
Design/methodology/approach
The search for reports was carried out in two databases, namely, Thomson Reuters Web of Science and Scopus, according to several inclusion and exclusion criteria. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) was applied to ensure the quality of the study. Microsoft Excel 2016 was used to organize the database to support the data analysis.
Findings
The sample comprised 64 reports published in international journals between 1986 and 2019. From these studies, six thematic clusters were formed: Workplace Physical Activity Interventions, Workplace Wellness, Physical Activity and Organizational Performance, Barriers to Developing Physical Activity Programs in the Workplace, Physical Activity and Sedentary Occupations and Workplace Physical Activity Incentives. The analysis of these clusters confirmed that the implementation of physical activity programs in this context could represent beneficial effects for workers and the organizational system by contributing to a reduction in the rates of absenteeism and presenteeism. However, there are still many organizations that do not implement such programs.
Originality/value
The results of this study are essential for managers of organizations to be able to implement physical activity programs in a work context, similarly to the application of a strategy of corporate social responsibility in an intra-organizational environment. This research may also be useful for professionals in the areas of sports and physical exercise, who want to build their business around physical exercise programs applied to a work context.
Details
Keywords
Umer Zaman, Nadja Damij, Aisha Khaliq, Muhammad Shahid Nawaz and Mahir Pradana
Project managers are under a never-ending pressure to demonstrate the expected value of projects to the project sponsors; however, in most cases, project managers fail to realize…
Abstract
Purpose
Project managers are under a never-ending pressure to demonstrate the expected value of projects to the project sponsors; however, in most cases, project managers fail to realize this strategic value due to the loopholes left in project governance throughout various stages of the project life cycle. Furthermore, another root cause of project failure might be linked to an exceedingly self-interested project leader who is exploitative of his/her team. This is a recurring yet still unexplored aspect of destructive leadership that requires attention from the scientific community as well as practitioners. Hence, the present study explored the relationship between project governance and information and communication technology (ICT) project success, as well as the moderating effects of exploitative leadership on this relationship.
Design/methodology/approach
With this aim, 357 responses were collected from project professionals in the emerging ICT industry in Pakistan, and the results were analyzed using structural equation modeling (SEM) with partial least squares (PLS).
Findings
The findings provide new evidence that project governance significantly improves project success opportunities in the ICT industry; however, this relationship is negatively moderated by exploitative leadership.
Originality/value
The study findings extend the project leadership literature by uncovering the influence of the dark side of project leadership (i.e. exploitative leadership), in addition to revalidating the impact of project governance on project success through a multi-dimensional context.
Details
Keywords
Health plays a crucial role in the daily lives and supporting health is the important role of medicine. With the availability of traditional, complementary and alternative…
Abstract
Purpose
Health plays a crucial role in the daily lives and supporting health is the important role of medicine. With the availability of traditional, complementary and alternative medicine (TCAM), the demands and willingness to pay among users are increasing. Hence, this study aims to determine the psychological factors influencing the willingness to pay for TCAM among Malaysian adults.
Design/methodology/approach
In total, 300 completed self-administered questionnaires were collected from Malaysian adults using a purposive sampling method through intercepts at public health-care facilities. A structural equation modelling approach using partial least square was used to test the hypotheses.
Findings
The findings show that attitude, subjective norms, perceived price and knowledge have a significant impact on willingness to pay for TCAM. Surprisingly, there was no relationship found between perceived behavioural control and health consciousness on willingness to pay for TCAM.
Originality/value
The findings of this study are expected to provide better insights into TCAM use among Malaysian adults. The results are also important to encourage health-care institutions and practitioners to educate the general public on the safety of TCAM to ensure more health benefits to the users.
Details