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The purpose of this paper is to develop a nomological model of the dark side of expatriate–host country national (HCN) relationships by identifying and explaining the development and the types of expatriate–HCN disruptive relationship behaviors (DRBs), their antecedents and consequences.

The authors conducted semi-structured interviews (n=27) with both expatriates and HCNs, focusing on DRBs that they exhibit toward each other, the factors preceding them (antecedents) and the mechanisms through which they affect the relationship between expatriates and HCNs, as well as the outcomes of such behaviors.

The findings show that relational dysfunction emanates from multilevel differences between expatriates and HCNs, and these differences induce workplace conflicts. These conflicts increase relational (emotional, social, instrumental and opportunity) costs that render both dyadic members to evaluate their relationship and socially categorize each other negatively, thus, detaching from the relationship. This detachment then leads to disruptive relational behaviors that amplify the conflicts and detachment dynamics and worsen interpersonal and intergroup dynamics, ultimately resulting in relational breakdown.

This study possesses methodological (e.g. relatively small number of interviewees) and conceptual (e.g. high degree of comprehensiveness) limitations. However, these offer implications for further research as they open a multitude of promising research avenues that could enhance the proposed model.

This is the first study the authors are aware of that focuses on discovering and explaining the nomological network of the dark side of expatriate–HCN relationships. The use of interdependence theory to understand cross-cultural relationships is novel. As such, it delivers theoretical and empirical contributions and fosters further research efforts.

This chapter is an ethnographic exploration of birthing and body politics in the United States and Uganda with the placenta as the catalyst for understanding reproductive regulation and gendered bodily epistemologies. Based on fieldwork spanning 2009–2017 with rural, traditional midwives in Southern Uganda, merged with recent, anecdotal observations from Los Angeles County and greater California and the United States generally, this work considers cultural terrains of placentas as well as corresponding worldviews and perspectives, ranging from life-generating organ imbued with vast spiritual and physiological significance, to preventative mental health food, to bio-waste that is incinerated or filled with toxic chemicals. The bio-ontologies of placentas are explored herein in terms of toxic contingencies and with regard to the relationship between health and industry.

Toxic entanglements and embodied politics of risk and exposure explored herein point to dehumanizing and ill-fitting regulations that stifle health autonomy and medical sovereignty. Such disempowering governance is compounded by gender and myriad cultural factors. With implications for national and international policies, this work examines my findings that illustrate ways in which flesh, technologies and knowledge intersect in bio-praxes that monitor and manage, rather than support, the reproductive body. This work suggests departure from colonial instability and dispossession by re-scripting medicine in such a way that achieves health justice through bodily knowledge, or enfleshed understandings. Decolonizing the flesh demands ungripping health encounters from praxes of control, in favour of choice and preference. This entails reclaiming physiologies as well as reimagining how medical systems inform core ethos.

The purpose of this paper is to highlight the relationship between lifestyles, household and household wastes, by exploring possible future development path for the lifestyle and the possible consequences for household waste composition. The study predicates on a reasonably simple and straightforward idea that the waste generated from homes is a product of the way the people live and since the way of life of people change overtime, getting an idea of how people may live in future may give an insight into the sorts of composition of waste produced by them. It tends to provide a contribution to the evidence base on household waste at a general level.

The overall approach hinged on the notion that the household is the appropriate analytical unit of household waste production composition. This specified inputs needed to develop scenarios for future waste composition. The weekly generation of sorted wastes from their various sources was determined by direct measurement in kilograms on a weighing scale. Questionnaires were administered to elicit information on key drivers and factors that influence lifestyles scenarios and their development. Interviews were conducted with relevant stakeholders and government agencies on waste management.

The results indicated that food related waste constituted the major percentages and tonnages (44 percent, 269,870 tons) of household waste, while the least portion was glass (1.2 percent,7,278 tons). The key drivers responsible for generation of food waste include level of income, subsistence farming that generate organic food waste and rise in fast food outfits that give preference to readymade food over cooking at homes. The drivers for developing future scenarios include population, government regulations, nature of apartment, level of income, consumer spending, management technology. Three scenarios were developed: status quo trends, strong government and destination point.

Models should be developed for better simulation studies of lifestyle scenarios by quantifying household wastes in terms of carbon footprint and money instead of relying on quantities generated in tons. Further studies should extend to other sources of waste such as industrial waste, electrical and electronic waste, among others. The implication from research findings shows the need for sustained for sustained awareness on people’s lifestyle with regard to handling of household wastes by government agencies, institutions and non-governmental organizations. Scenario planning is required to enable, encourage and engage householders to make changes in their lifestyles.

Food waste, by virtue of its tonnage and percentage composition, dominated the overall picture during the study period and will continue to do so in the near future. The composition of household waste in the future will be driven by the population and lifestyles of the householders. The drivers of lifestyles are crucial factors that determine the picture of the future. Furthermore, it is possible to conjecture circumstances in which household waste is converted to wealth at the destination point but the period before then imply some radical changes in both lifestyles and underlying economic growth facilitated by a strong political will.

This research could be of enormous benefit to policy makers, practitioners and others with an interest in or responsibility to the development and implementation of sustainable waste management. Scenarios are devices for enabling organizations and the individuals within them better to understand their operating environment, so as to make better decisions. This research is a scenario-planning exercise, considering how future changes in lifestyles of people in Port Harcourt metropolis now and in future may impact on the future composition of wastes they generate.

Artificial fruit ripening is hazardous to mankind. In the recent past, artificial fruit ripening is increasing gradually due to its commercial benefits. To discriminate the type of fruit ripening involved at the vendors’ side, there is a great demand for on-sight ethylene detection in a nondestructive manner. Therefore, this study aims to deal with a comparison of various laboratory and portable methods developed so far with high-performance metrics to identify the ethylene detection at fruit ripening site.

This paper focuses on various types of technologies proposed up to date in ethylene detection, fabrication methods and signal conditioning circuits for ethylene detection in parts per million and parts per billion levels. The authors have already developed an infrared (IR) sensor to detect ethylene and also developed a lab-based setup belonging to the electrochemical sensing methods to detect ethylene for the fruit ripening application.

The authors have developed an electrochemical sensor based on multi-walled carbon nanotubes whose performance is relatively higher than the sensors that were previously reported in terms of material, sensitivity and selectivity. For identifying the best sensing technology for optimization of ethylene detection for fruit ripening discrimination process, authors have developed an IR-based ethylene sensor and also semiconducting metal-oxide ethylene sensor which are all compared with literature-based comparable parameters. This review paper mainly focuses on the potential possibilities for developing portable ethylene sensing devices for investigation applications.

The authors have elaborately discussed the new chemical and physical methods of ethylene detection and quantification from their own developed methods and also the key findings of the methods proposed by fellow researchers working on this field. The authors would like to declare that the extensive analysis carried out in this technical survey could be used for developing a cost-effective and high-performance portable ethylene sensing device for fruit ripening and discrimination applications.