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The present communication aims to investigate the influence of cobalt substitution on the structural, mechanical and elastic properties of nickel–zinc ferrite thick films. The changes observed in the crystallite size (D), lattice constant (a), texture coefficient [TC(hkl)] and mechanical and elastic properties of the thick films due to cobalt substitution have been reported systematically.

Ni–Zn ferrites with the stoichiometric formula Ni_0.7−xCo_xZn_0.3Fe₂O₄ (where, x = 0, 0.04, 0.08, 0.12, 0.16 and 0.20) were synthesized via solution combustion technique using sucrose as the fuel and poly-vinyl-alcohol as the matrix material. The thick films of the ferrites were fabricated on alumina substrates by the screen printing method. The thickness of the films was 25 μm, as measured by the gravimetric method. The thick films were subjected to X-ray diffraction and Fourier transform infrared spectroscopy.

The detailed study of variation of lattice parameter (a), sintering density, micro-strain and elastic properties with cobalt (Co+2) substituted was carried out. The remarkable increase in lattice parameter (from 8.369 A^° to 8.3825 A^°), bulk density and average grain size (69-119 nm) with the cobalt content was due to larger ionic radius of Co²⁺ compared to Ni²⁺. Texture analysis [TC(hkl)] reveals all thick films have adequate grain growth in the (311) plane direction. The main absorption bands of spinel ferrite have appeared through infrared absorption spectra recorded in the range of 300-700 cm⁻¹.

The variation in stiffness constants (for isotropic material, C11 = C12), longitudinal elastic wave (Vl), transverse elastic wave (Vt), mean elastic velocity (VMean), rigidity modulus (G), Poisson’s ratio(s) and Young’s modulus (E) with cobalt (Co+2) composition has been interpreted in terms of binding forces found.

The purpose of this paper was to determine the complex permittivity of bismuth strontium manganites (Bi_1−xSr_xMnO₃) in the 8‐12 GHz range by using perturbation of Ag thick film microstrip ring resonator (MSRR) due to superstrate of both bulk and thick film.

The BSM ceramics were synthesized by simple low cost solid state reaction method and their fritless thick films were fabricated by screen printing technique on alumina substrate. A comparison has been made between the X band response of Ag thick film microstrip ring resonator due to perturbation of bulk and thick film Bi_1−xSr_xMnO₃ ceramic.

The bulk and thick film superstrate decreases the resonance frequency of MSRR. In this technique even minor change in the properties of superstrate material changes the MSRR response. Variation of strontium content also influences microwave conductivity and penetration depth of bulk and thick films.

The microwave complex permittivity decreases with increase in Sr content in bismuth manganite and it is higher for bulk as compared to its thick films. The superstrate on Ag thick film microstrip ring resonator is an efficient tool capable of detecting the composition dependent changes in microwave properties of ceramic bulk and thick films.

Mental wellbeing brings in multiple benefits to employees and their organizations like better decision-making capacity, greater productivity, resilience and so on. The purpose of this paper is to examine the relationship of a few antecedents of mental wellbeing like workplace spirituality, mindfulness and self-compassion, using structural equation modeling (SEM).

Using the convenience sampling method, data were collected from 333 employees of various organizations in India and SEM was performed using the R Program to test the hypotheses.

Results suggest that mindfulness and self-compassion influenced the mental wellbeing of employees. It was also observed that workplace spirituality has a significant influence on both mindfulness and self-compassion.

An in-depth review of the literature revealed that no previous studies had examined the complex relationship between workplace spirituality, mindfulness, self-compassion and the mental wellbeing of employees. This research suggests that workplace spirituality, mindfulness and self-compassion are important factors that influence employees' mental wellbeing, and it empirically tests this in a developing country context. The present study enriches the literature studies on mental wellbeing, mindfulness, self-compassion and workplace spirituality by integrating “mindfulness to meaning theory”, “socio-emotional selectivity theory”, and “broaden and build theory”.

Extant literature shows that gamification is an effective tool for enhancing customer brand engagement. However, there is a need for a structured review of the literature on how and to what extent gamification fosters customer brand engagement. This hybrid literature review synthesizes extant research on gamification and its impact on customer brand engagement.

The study is based on 45 articles drawn from 33 journals from the Scopus database. This article conducts a systematic review of theory, context, characteristics and methods employed in extant research, identifies contemporary themes and presents future research avenues. It also conducts a bibliometric analysis to identify the most prominent journals, authors, articles and themes.

This review identifies various patterns and trends of psychological capital research, and it unfolds four major themes – gamification and customer engagement, gamification and e-marketing, gamification and sustainable marketing and gamification and customer experience.

This review offers key insights into managerial implications.

It is one of the first endeavors to conduct a structured review of research related to gamification and customer engagement. It presents a conceptual framework that shows the relationships between gamification and customer engagement. This systematic review offers several future research agendas to spur scholarly research and presents key insights into the process of gamification in marketing to enhance customer brand engagement.

This paper highlights public health issues arising in prisons due to overcrowding – focusing on existence of tuberculosis (TB) and its transmission in a TB endemic country. It further addresses feasible TB management, to develop an applicable preventive intervention that will control TB transmission and development within and outside prisons. This study aims to decrease morbidity and mortality caused by TB by identifying latent tuberculosis infection (LTBI) cases.

A novel cross-sectional study conducted on male prisoners of Central Prison Rawalpindi, dividing them into three strata, i.e. under-trial (UTP), convicted (CTP) and condemned (CP) prisoners. Prevalence of latent TB infection within prisoners was methodologically calculated using multiple statistical analysis at 95% confidence interval. This research sourced an invasive skin test (Mantoux test) for primary data collection from targeted key population.

This research calculated existing prevalence of LTBI at 47.25%, 47.45% and 53%, respectively in UTP, CTP and CP prisoners, and 32.2% in total prison population. Overcrowding, poor health conditions and excessive smoking presented strong statistical significance to high LTBI prevalence across the prison population.

Limitations included accessibility to prisons due to procedural concealment, and unannounced release of UTPs that was dealt through supplementary testing. The presented research findings highlight the disease spread across key populations, and the importance of identifying, containing and controlling them. It elaborates the crucial use of Mantoux tuberculin skin test (TST) to identify and isolate LTBI and potential TB cases in a closed population. It also facilitates policy implications that promote health and safety for prisoners, law enforcers and associated external population.

TB is one of the top 10 fatal illnesses and second highest infectious disease worldwide. For decades, TB ruled over human health and threatened their survival. Health-care professionals face challenges in locating, isolating, treating and controlling TB across the globe. Pakistan is a TB endemic country that internationally ranks fifth in nations with high TB burden. LTBI prevalence is unknown in Pakistan. Key populations are well-known to comparatively live with higher rates of infectious disease. Therefore, this research targeted a key population and has successfully calculated LTBI prevalence in overcrowded male prison population.

Key populations are at high risk of contracting and transmitting communicable diseases. They not only possess higher disease incidences, but are also responsible for disease-spread within and outside their community. Targeting them will help in controlling for LTBI across prison population as well as the external population that is associated with the prisoners. TST allowed maximum screening coverage, encapsulated LTBI, spread awareness and eliminated stigmatisation.

Prevalence of TB and LTBI are unknown in Pakistan. This novel research calculated LTBI prevalence through primary data collection and targeted key populations. Authors collected primary data on case-by-case basis. This study has efficaciously located and isolated LTBI cases among the sample population following internationally standardised TST procedures.

Recently, the relationship between gender representation and organizational performance has been the focus of various studies. However, some research gaps still exist. First, in the healthcare sector, this relationship has been poorly explored. Moreover, in public management studies, researchers focusing on performance tend to focus exclusively on gender differences at the top and/or middle management level. This research aims at exploring the relationship between women's representation and performance in public hospitals at all organizational levels.

To achieve the research objective, 63 healthcare organisations were analysed through ordinary least squares regressions on panel data from 2012 to 2018.

Results show that, in the hospital setting, gender diversity and financial performance are related at every organizational level.

To the authors' knowledge, this is one of the first studies focusing on the link between gender and performance at every level of professional and employment category; avoiding focusing exclusively on top management, which was the case in previous studies on the topic. Moreover, it contributes to a poorly explored literature which is gender studies in public healthcare management.

This article explores Jamaican secondary school principals' use of mindfulness meditation as a spiritual well-being strategy to manage their work-related stress and anxiety.

The author used qualitative semi-structured interviews to collect the data from 12 Jamaican secondary school principals working in schools supporting rural, urban and inner-city school communities. Thematic coding of the analyzed data was used to understand how principals deal with their work-related stress and anxiety.

The findings indicate that Jamaican school principals are experiencing work-related stress and anxiety as a result of work intensification, and use mindfulness meditation/prayer as a spiritual coping strategy. The data indicate that principals' primary source of support is their spiritual belief – faith in God and mindfulness meditation/prayer – when dealing with issues related to well-being.

This article explores the use of mindfulness meditation as a non-secular coping strategy, and focuses on an understudied area of educational administration research: Jamaican school principals' well-being. The findings can help inform future education and health policy around occupational health and well-being for professionals, and lay the foundation for greater studies on principal well-being in Jamaican and the Caribbean more generally.

Currently, there is a great demand for those food products that are easy to prepare or ready for direct consumption. Making pear fruit/juice available round the year is desirous owing to pears' high-nutritional value and specific pleasant taste. Pear is, however, a seasonal fruit and under ambient conditions has a limited shelf life rendering it available as fresh fruit for a specific period.

The study aimed to optimize the spray drying process parameters using response surface methodology for the development of pear juice powder. The process variables included the inlet air temperature of 140–210°C, maltodextrin levels of 4–25%, atomization speed of 11,400–28,000 rpm, feed flow rate of 180–630 mL/hr, and feed total soluble solids (TSS) of 13–30°Brix. The dependent responses were powder yield, solubility, antioxidant activity {% 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity}, dispersibility, hygroscopicity and particle density.

Among independent variables, inlet air temperature showed a predominant effect. The optimum processing conditions for the development of pear juice powder with optimum quality were 163.02°C inlet air temperature, 13.50% maltodextrin, 28,000 rpm atomization speed, 390.94 mL/h feed flow rate, and 25.5°Brix feed TSS. Under these optimum conditions, pear powder with desirable properties could be produced. The experimental and predicted values were found to be in agreement, indicating the suitability of the model in predicting optimizing responses of pear powder. Glass transition temperature of pear powder was found to be 36.60 ± 0.40°C, which is much higher than that of ambient temperature, suggesting better shelf stability.

The processing of pear fruit has resulted in the increased demand for pear juice powder in both domestic and international markets as a primer of new food products. The optimum conditions obtained in the current study could provide a new insight to the food industry in developing spray-dried pear powder of optimum quality. This can open up a new horizon in the field of food industry for the common masses of Jammu and Kashmir, India.

This study investigates barriers to consumers’ organic food purchasing. It identifies the factors and the extent to which they influence their purchase behaviours and future purchase intentions (i.e. continuance purchase intentions).

It combines qualitative and quantitative methods across two phases. Longitudinal research was carried out in two phases. It involved a thematic analysis and a covariance-based structural equation modelling approach. During Phase-1 and Phase-2, responses were collected from 376 and 351 respondents, respectively.

Phase 1 found the value barrier was significantly affecting the consumers’ purchase intention, while Phase 2 identified the impacts from both image and value barriers on purchase intentions. Notably, purchase intention affected continuance intention in both phases, while ethnocentrism showed no influence.

Using the innovation resistance theory, this study sheds light on the factors that prevent purchase intention. It offers valuable insights for policymakers and for the marketers of organic foods. This contribution implies that value and usage barriers were affecting the consumers’ purchase intentions in the short as well as in the long term. In sum, it suggests that consumers were not purchasing organic food as they felt it was either overpriced, not available in the market or because they were sceptical about its organic labelling.