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A new method of studying the accelerated ageing of interconnection materials is applied to a high‐stability thick film resistor system (the Du Pont HS‐80 system). The new method, referred to hereafter as the in‐situ method, allows measurement of the electrical resistance of a thick film resistor to a resolution of a few ppm during accelerated ageing. With the in‐situ technique, the electrical resistance measurements are performed at the elevated ageing temperature during the ageing treatment, whereas with the conventional ageing method the resistance measurements are carried out at room temperature, between subsequent annealing steps. The measuring resolution obtainable with the in‐situ method is orders of magnitude better than with the conventional method. The ageing kinetics can therefore be studied on a shorter time scale and in greater detail than with the conventional method. In this paper, the authors use the in‐situ method to study the accelerated ageing of the Du Pont HS‐80 thick film resistor system, encapsulated with a proper glaze. It will be shown that kinetics of the resistance drift observed in this system cannot be described by an Arrhenius‐type equation. The ageing data can only be interpreted in terms of a kinetic model incorporating a spectrum of activation energies for the ageing process. Such a model is given, and is shown to provide a good explanation of the observed ageing behaviour. The physical process that causes the observed ageing is most probably diffusion of silver from the contacting terminals into the amorphous matrix of the thick film resistor.

The purpose of this study is to research the effects of interrupted aging on the corrosion behavior of Al–Cu–Mg–Ag heat-resistant alloy by means of intergranular corrosion (IGC) testing, potentiodynamic polarization combined with optical microscopy and transmission electron microscopy.

The results show that the IGC began on the grain boundaries and continued along the grain boundary. The corrosion resistance property of Al–Cu–Mg–Ag alloy was enhanced by interrupted aging. The precipitations of the interrupted aged sample both in the grains and on the grain boundaries were fine, and the chain-like phases on the grain boundary were distributed nearly continuously.

The corrosion resistance of Al–Cu–Mg series Al alloy with equilibrium phase (Al₂Cu) is notably determined by precipitation-free zone (PFZ) as the self-corrosion potentials of (Al₂Cu), PFZ and the matrix satisfied the relation EPFZ < E_θ<EMatrix.

The connections of the PFZ on both sides of the grain boundary decreased the corrosion resistance of Al–Cu–Mg–Ag alloy treated by the single aging.

The purpose of this paper is to examine interruption patterns between residents and patients as well as the correlations between three categories of interruptions and patient satisfaction.

A total of 40 resident/patient consultations in a Canadian clinic were audiotaped, transcribed and analyzed for intrusive, cooperative and unsuccessful interruptions.

Residents made significantly more interruptions than patients, especially in the categories of intrusive interruptions. These findings provide support for situated identity theory. High correlations were found between residents and patients on all three categories of interruptions, providing unequivocal support for communication accommodation theory. Patient satisfaction was negatively correlated with residents' intrusive interruptions and positively correlated with residents' cooperative interruptions. Patient satisfaction was higher among patients those who inserted more cooperative interruptions; to increase patient satisfaction, it is necessary to raise patient participation in the medical consultation. In comparison with healthier patients, sicker patients were interrupted more frequently and were less satisfied with the way they were treated.

The negative correlations between residents' intrusive interruption and patient satisfaction, as well as the positive correlation between patient satisfaction and residents' cooperative interruption provides evidence that patients' perception of the medical consultation is shaped by the nature of interruptions.

SYMPOSIUM Ferrare, Italy. Fischer, Germany. The inhibition by means of electrolytic layers is characterised in that they prevent the passage of metal in the diffusion layer and in the electrolyte layer.

The purpose of this paper is to review the existing literature linked to older workers' work orientations and the use of typologies to identify groups of older workers according to their work and retirement patterns.

The approach taken entails reviewing books and academic journals from the area of human resource management, retirement, diversity and pensions. The paper focuses on the industrial sociology literature as the grounding for the construction of older worker typologies.

The review of the typologies reveals that the older workforce is a wide range of workers whose experience in work impacts their attitude toward and planning for retirement. Policy makers cannot, therefore, take a “one size fits all” approach to designing incentives for delaying retirement.

The main limitation of the review is that the studies which have been reviewed are based on both qualitative and quantitative data and have focused on different aspects of later life work, such as early retirement, ill‐health retirements, pensions and staying in work past retirement age.

The review has a number of practical implications for HR practitioners, government, and trade unions who want to develop targeted incentives for older workers to delay retirement.

The originality of the review is that it is unique in bringing together the range of literature on older worker typologies in order to identify overarching themes. The review found that Titmuss' “two nations” provides a useful model for identifying groups of older workers who are in most need of support.

Old age is a complex and dynamic phenomenon. The relationship between old age and transport is also very complex due to the heterogeneity within this age group. Yet what is certain is that with age, a person’s functional abilities change. This chapter provides a summary of how older people can be vulnerable within the road environment. Using an established framework for understanding old-age vulnerabilities, this chapter explains the common exposure factors and threats that several older people face in the transport environment. These primarily deal with individual physical and cognitive characteristics, medical conditions as well as the appropriateness (or not) of infrastructure. Subsequently, common difficulties for older drivers, pedestrians and public transport users are discussed. The main vulnerabilities that result from such difficulties are related to an over-representation of older people in accidents and to a lower quality of life due to mobility inefficiencies. Yet, using the same framework, the compensation techniques that older people often adopt to minimise such limitations are also highlighted. Reference is also made to the issues related to the lack of awareness in old age and the corresponding inability to compensate. The review concludes by suggesting a way forward for further studies on transport vulnerability in later life.

The purpose of this paper is to explore the impact of documentation on the educational experiences, college readiness and aspirations of undocumented Latinx migrant and seasonal farmworkers.

This ethnographic study was conducted in a High School Equivalency Program at a large university in the Midwest. Data was collected during two semesters across a three-year span. Participants included six Mexican migrant and seasonal farmworkers who were preparing to earn their General Educational Development (GED) diploma. Using the grounded theory, data was collected and analyzed simultaneously where initial and focused coding took place, followed by cross-case analysis.

Analysis of student interviews, participant observations and in-depth fieldnotes that include the K-12 educational experiences, experiences during and after the High School Equivalency Program reveal that undocumented Latinx migrant and seasonal farmworkers aspire to earn a GED diploma to access a better future inclusive of college. However, the legal liminality, the uncertainty and ambiguity of being undocumented, impacts their educational journey prior to, during and beyond the High School Equivalency Program. Furthermore, undocumented Latinx migrant and seasonal farmworkers are unable to change their material conditions with a GED because of their documentation status.

Although researchers have studied the education experiences of Latinx migrant and seasonal farmworkers, analysis and consideration of documentation status is missing. This study contributes much needed findings about the impact of documentation status on the educational experiences, college readiness, and aspirations of Latinx migrant and seasonal farmworkers.

This paper aims to discuss the seepage of current national discourses into the fabric of university classrooms. The authors describe their experiences navigating politics and accompanying discourses in their undergraduate and graduate courses at a rural Midwestern university in the USA. Their narrative provides a socio-historical context in response to events related to the 2016 presidential election.

The authors situate their cultural and linguistic identities within a critical race theory framework and unpack discourses of privilege that “other” students and families from nondominant communities. They highlight promising practices that challenge the status quo, creating opportunities for critical teaching and reflection.

Teacher educators are called on to engage pre- and in-service teachers in practice-based pedagogies and inquiries around authentic issues that present possibilities for transformative social change.

This narrative addresses teaching in contentious times and reflects on transformative practice to engender critical hope.

There is a dearth of research on what constitutes effective transfer of care from children’s and young people services to adult services for patients with eating disorders (EDs) in the UK. Transition has implications for continuity of care and particularly for early intervention which has the best prognosis. The purpose of this paper is to understand the experience of transition and identify facilitators and barriers to this.

Qualitative methodology was used. Focus groups (n = 4) were held with clinicians (n = 22) working in Child and Adolescent Mental Health Services or adult ED services. Individual interviews were conducted with patients (n = 5) who had commenced/completed transition to adult services and with parents/carers (n = 6) of patients invited for interview.

A number of factors may facilitate or impede transition and can be grouped into the broad themes of communication, managing the differences between services and timing of transition. Improvements in communication, clear explanation of service differences and flexibility around the timing of transitions may enhance the experience for patients and parents/carers.

The service evaluation was limited to transition between two specialist ED services in one geographical location. The findings provide the basis for a wider research study to examine which factors are most important when planning transition from the perspectives of patients, parents/carers and clinicians.

This is the first study examining ED transitions in the UK. It provides valuable insight of the experience of service users and carers and highlights potential improvements when planning transitions for this patient group.

Welfare states are sets of rules and policies that redistribute resources across social classes and across generations. In nearly all western nations, social spending on the aged has surpassed spending on all other age groups combined. In 1992 alone, spending in the U.S. on Social Security topped $250 billion and on Medicare $130 billion.