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Confronting the unveiled sophisticated structural and physical characteristics of permanent magnets, notably the samarium–cobalt (Sm-Co) alloy, This work aims to introduce a simulation scheme that can link physics-based micromagnetics on the nanostructures and magnetostatic homogenization on the mesoscale polycrystalline structures.

The simulation scheme is arranged in a multiscale fashion. The magnetization behaviors on the nanostructures examined with various orientations are surrogated as the micromagnetic-informed hysterons. The hysteresis behavior of the mesoscale polycrystalline structures with micromagnetic-informed hysterons is then evaluated by computational magnetostatic homogenization.

The micromagnetic-informed hysterons can emulate the magnetization reversal of the parameterized Sm-Co nanostructures as the local hysteresis behavior on the mesostructures. The simulation results of the mesoscale polycrystal demonstrate that the demagnetization process starts from the grain with the largest orientation angle (a) and then propagates to the surrounding grains.

The presented scheme depicts the demand for integrating data-driven methods, as the parameters of the surrogate hysteron intrinsically depend on the nanostructure and its orientation. Further hysteron parameters that help the surrogate hysteron emulate the micromagnetic-simulated magnetization reversal should be examined.

This work provides a novel multiscale scheme for simulating the polycrystalline permanent magnets’ hysteresis while recapitulating the nanoscale mechanisms, such as the nucleation of domains, and domain wall migration and pinning. This scheme can be further extended to simulate the part-level hysteresis considering the mesoscale features.

This paper aims to present a critical review of some literature on climate change and migration through conceptualizing and contextualizing the linkages between the two topics. Much literature on links between climate change and migration tends to downplay ambiguities in the terms and the limited empirical evidence. Conceptualizing refers to the knowledge gaps and the need to understand and detail (even if not agreeing on) conceptual issues such as terminology, definitions, linkages, drivers, thresholds, implications, data requirements and methodologies. Contextualizing refers to understanding the climate change and migration debate within wider topical and geographical contexts. Results identify major qualitative and quantitative gaps. Qualitatively, limited material exists on why people react differently to similar environmental stressors and why certain outcomes may arise. Quantitatively, credible and verifiable measures are not always available for assessing the climate change impacts on migration. This paper recommends a stratified, multi-disciplinary approach to facilitate policies regarding climate change and migration connections.

Illustrative literature review, clustering important themes found in published research and policy documents. First, qualitative aspects are covered, particularly in terms of definitions and terminology. Second, quantitative aspects are detailed, particularly in terms of data available and estimates made. Further, the paper is organized around two distinct areas, i.e. conceptualizing and contextualizing climate change and migration links.

Results identify major qualitative and quantitative gaps. Qualitatively, limited material exists on why people react differently to similar environmental stressors and why certain outcomes may arise. Quantitatively, credible and verifiable measures are not always available for assessing the climate change impacts on migration. This paper recommends a stratified, multi-disciplinary approach to facilitate policies regarding climate change and migration connections.

Without being comprehensive in the literature covered, this paper provided a critical overview and synthesis of climate change and migration work through the lens of conceptualization and contextualization. Major gaps in the literature were identified through an illustrative, not complete, review. Qualitative and quantitative aspects were covered including definitions, terminology, data available and estimates being made.

This chapter considers adolescents' migration aspirations in Kyrgyzstan. The discussion is based on the data obtained from 14 semi-structured interviews with adolescents as part of a qualitative study devoted to changes and continuities in biographic projecting across three generations. The study reveals the tendency towards having aspirations to move abroad for studies, work and/or life. Thus, the objective of this chapter is to consider the adolescents' motivation and to trace opportunities and challenges which may promote or hinder the realisation of individuals' migration projects. Special attention is paid to the role of an adolescent's family in this process. Adolescents' aspirations oriented towards future life in foreign countries are analysed with the help of two theoretical concepts – the concept of intergenerational solidarity and the concept of individualisation.

The analysis has shown that in Kyrgyzstan, adolescents' plans concerning going abroad are often framed by their extended families' interests and expectations. Adolescents' migration aspirations become a collective project of every family member for the sake of the family's future well-being. Parental expectation of care and support in their older age is one of the main limitations on adolescents' aspirations to move abroad. Those adolescents whose migration aspirations do not correspond with parental expectations may experience strong ambivalence, when they face the conflict between their individualised biographic projects oriented towards promising global opportunities and intergenerational solidarity norms.

Particles bed binding by selective cement activation (SCA) method is a computer-aided manufacturing (CAM) technique used to produce cementitious elements. A computer-aided design file is sliced to generate G-codes before printing. This paper aims to study the effect of key input parameters for slicer software on the final properties of printed products.

The one factor at a time (OFAT) methodology is used to investigate the impact of selected parameters on the final properties of printed specimens, and the causes for the variations in outcomes of each variable are discussed.

Finer aggregates can generate a more compact layer, resulting in a denser product with higher strength. Fluid pressure is directly determined by voxel rate (r_V); however, high pressures enable better fluid penetration control for fortified products; for extreme r_Vs, residual voids in the interfaces between successive layers and single-line primitives impair mechanical strength. It was understood that printhead movement along the orientation of the parts in the powder bed improved the mechanical properties.

The design of experiment (DOE) method assesses the influence of process parameters on various input printing variables at the same time. As the resources are limited, a fractional factorial plan is carried out on a subset of a full factorial design; hence, providing physical interpretation behind changes in each factor is difficult. OFAT aids in analyzing the effect of a change in one factor on output while all other parameters are kept constant. The results assist engineers in properly considering the influence of variable variations for future DOE designs.

There is abundant research on surrogacy; however, migration scholars have not addressed surrogacy-driven migration. Policies related to surrogacy and surrogacy-led migration are under-researched. The paper argues that surrogacy-led migration or fertility/reproductive migration constitutes a significant part of mainstream migration. The purpose of this paper is to reflect on the policy dilemmas in various countries.

A total of 9 surrogate mothers (4 from India; 2 from Thailand, 2 from Indonesia and 1 from Nepal) and 8 commissioning parents (2 from Japan; 4 from Europe; 1 from the USA; 1 from Australia) and 2 doctors (1 from India and 1 from Thailand) selected on snowball basis were interviewed between 2014 and 2016 by using a checklist.

The deficiency and inconsistency of laws regarding surrogacy facilitated the growth of the surrogacy market. Therefore, a uniform policy would help to define and improve the surrogacy and surrogacy-led migration management.

This paper demonstrates the interplay of surrogacy and mainstream migration. This is a fresh addition to the study of migration.

The topic of parent migration and its effects on the family environment has become a focus of moral dilemmas in East Europe for the last three decades. Children have been portrayed as social orphans and parents working abroad as neglectful parents. Today, with more evidence from research and experience, the impact of parental migration is much more comprehensive and nuanced, recognising its noxious or even harmful but also possibly empowering effects. This chapter reflects on the involvement of left-behind adolescents as co-researchers in a study of transnational families. It acknowledges the agentic role of children (often automatically labelled as victims of neglect), amplifies their voices to inform existing data on the impact of parents' departure to work abroad and identifies directions for intervention that might strengthen families.

The research is an integral part of CASTLE – Children Left Behind by Labour Migration, an ongoing project (June 2021–December 2023). ¹ This chapter presents the research collaboration experience with 12 co-researcher adolescents with previous left-behind experiences, originating from Moldova and currently residing in Romania. The co-researchers participated in all stages of the research process: training, design of data collection, recruitment of research participants, data analysis and dissemination of results. Taking co-researcher roles had an empowering effect on adolescents, who learnt how to express their views on the topic, voiced their experiences about the emotional costs of being left behind by their parents and reflected on sensitive issues like separation of family members and violence in the family.

In this chapter, rephrasing Spivak's question into ‘can subaltern children speak?’, I reorient the research on China's gigantic population of children and youths in rural migrant families towards a critical interpretative approach. Based on life history and longitudinal ethnographic interview gathered with three cases, I unpack the multiple meanings migrants' children attach to mobility in their childhood experiences. First, despite emotional difficulties, children see their parents' out-migration more as a ‘mobility imperative’ than their abandonment of parental responsibilities, which should be contextualized in China's long-term urban-biased social policies and the resultant development gaps in rural and urban societies. Second, the seemingly ‘unstable’ and ‘flexible’ mobility patterns observed in migrant families should be understood in relation to a long-term family social mobility strategy to promote children's educational achievement and future attainment. The combination of absent class politics in an illiberal society with an enduring ideology of education-based meritocracy in Confucianism makes this strategy a culturally legitimate channel of social struggle for recognition and respect for the subaltern. Last, children in migrant families are active contributors to their families' everyday organization amidst mobilities through sharing care and household responsibilities, and developing temporal and mobility strategies to keep alive intergenerational exchanges and family togetherness. The study uncovers coexisting resilience and vulnerabilities of migrants' children in their ‘doing class’ in contemporary China. It also contributes insights into our understanding of the diversity of childhoods in Asian societies at the intersection of familyhood, class dynamics and cultural politics.

In the following, the region of Southeast Asia will be introduced by offering an overview of the recent developments regarding demographic transition, socioeconomic change, social inequality and the diversification of migration patterns. We will sketch out, how young people fare in the face of these conditions, especially with regard to their own or their families' mobilities. Finally, the four contributions of this section, each reflecting a specific context of Southeast Asia's transnational societies and the related intergenerational dynamics, will be introduced.

The production of the ‘good life’ or the ‘less bad-life’ (Berlant, 2007, 2011), especially among generations of the Marcos dictatorship and the Epifanio de los Santos Avenue revolutions (henceforth, EDSA revolutions) in the Philippines, is animated by the ‘mobility imperative’ (Farrugia, 2016). The mobility imperative includes processes that encourage or demand mobility (Farrugia, 2016) for individuals and institutions. It figures in various ‘systems of practice’ (Levitt, 1998, 2001) among families in migrant-sending communities, government and corporations that magnify how migration is the ticket to better life (McKay, 2012) or its glorification as a heroic act (de los Reyes, 2013, 2014). Among the generations of the Martial Law and the EDSA revolutions, therefore, the ‘good life’ is hinged upon departure as professionals (e.g. nurses and engineers), workers in elementary occupations (e.g. construction and domestic workers) or mail-order brides or pen pals. Put simply, the good life in these generations is a function of remittances.

This chapter examines how the contemporary generation of young people construct the ‘good life’ in differential and new terms (de los Reyes, 2023; McKay & Brady, 2005) from previous generations. Using interviews and vision boards of left-behind children (15–18 years old), it argues that left-behind children critically appraise the ‘mobility imperative’. The chapter shows that there is a growing imagination of alternatives to the migration-induced good life among left-behind children, and therefore, they gradually refuse the ‘mobility imperative’. For them, the aspired good life consists of potentially being employees or entrepreneurs in their own villages and living a life with their own families (de los Reyes, 2019, 2020).