Search results

Shape memory alloys are a fascinating class of materials because they combine both structural and functional properties. These properties strongly depend on temperature. One consequence of this dependency yields the characteristic shape‐memory effect: shape memory alloys can recover processed reference configurations after significant plastic deformations simply upon a change of temperature. For real materials, such processes incorporate characteristic hysteresis. This paper aims at an understanding of these materials from an atomistic point of view.

2D molecular‐dynamics (MD) simulations describing a chain consisting of 32 linked Lennard‐Jones crystals are presented. The crystals consist of nested lattices of two atom species. Distinct lattice structures can be identified, interpreted as austenite and (variants of) martensite. Temperature and/or load‐induced phase transitions between these configurations are observed in MD simulations. Previously, the thermal equation of state of one isolated crystal was investigated and its phase stability was discussed in detail. In the multi‐crystal chain considered in the present paper, individual crystals contribute collectively to the thermo‐mechanical behavior of the assembly.

The paper presents the results of numerical experiments with this polycrystalline chain under strain‐, load‐ and/or temperature‐control. The results show that with the assumption of simple Lennard‐Jones potentials of interaction between atoms in individual crystals and linking these crystals allows to reproduce the features associated with the fascinating behavior of shape memory alloys, including pseudo‐plasticity, pseudo‐elasticity and the shape memory effect.

Owing to the special setup chosen, interfaces are missing between adjacent crystals in the chain assembly. The paper shows that in this situation load‐induced austenite/martensite transitions do not exhibit hysteresis in tension/compression cycles. This observation indirectly supports mesoscopic‐level work in the literature which explicitly introduces interface energy to model such hysteresis.

The management of children′s literature is a search for value and suitability. Effective policies in library and educational work are based firmly on knowledge of materials, and on the bibliographical and critical frame within which the materials appear and might best be selected. Boundaries, like those between quality and popular books, and between children′s and adult materials, present important challenges for selection, and implicit in this process are professional acumen and judgement. Yet also there are attitudes and systems of values, which can powerfully influence selection on grounds of morality and good taste. To guard against undue subjectivity, the knowledge frame should acknowledge the relevance of social and experiential context for all reading materials, how readers think as well as how they read, and what explicit and implicit agendas the authors have. The good professional takes all these factors on board.

THERE IS yet another film on general release with a librarian as the central figure. ‘Yet another’ as Foul play is only the most recent of a surprisingly large number of films featuring librarians not only as light relief, but also as hero or (more frequently) heroine.

OUR publication date precludes more than the beginning of our study on the Library Association Conference which, from the point of view of numbers, has been one of the largest. We shall continue in our next issue such comment upon it as the importance of the subjects under discussion would seem to warrant.

HIS MAJESTY THE KING is winning new admiration, if that were possible, as the speaker of words on libraries which are memorable. At the opening of the University Library at Cambridge on October 22nd, he described that great new library as “both a power house and a testing station of educational activities,” and went on to say, “It is a workshop of new knowledge and a store‐house of seasoned wisdom.” It is difficult to think of phrases which convey more fully the work and aspirations of a great national library. We cannot refrain from mentioning again the significant fact that within one year His Majesty has opened two libraries, which together have cost £1,000,000 to build. If any have doubts as to the national attitude towards the library movement, they will probably be resolved in favour of the future of libraries by thinking of this. Of course, the Manchester Public Library was built out of the sum accumulated from the sale of a previous central library, and we know that one half of the £500,000 spent at Cambridge came from the International Education Board; but in the first case, the good will of Mancunians was required for the spending on the library of this large sum of money, and in the second case, £229,000 was obtained by public subscription from friends of Cambridge. These are works of faith which must have a very great effect upon the future of education and culture of England. If they were alone, however, they would have been significant, but when we remember that Leeds University and the City of Sheffield have built great libraries, and even in smaller places such as Dover a new library has been established, while there are many new branch libraries at Birmingham, Bristol, and elsewhere, and renovations of older libraries, as at Coventry and Croydon, and Nottingham, we realise that in a time which is thought to be one of depression, the public library has made strides which are almost as great as those of the early Carnegie days.

This paper aims to outline a knowledge translation (KT) case study undertaken as part of a multi-component research programme aimed at evaluating new parenting supports in the earliest years. The study aimed to: explore the influencing factors relating to research use in an early years context; and to use the findings, at least in part, to execute an integrated KT plan – to promote stakeholder engagement, greater research visibility and to enhance the understanding of findings emerging from the research programme.

A mixed-methods study was embedded within a large-scale, longitudinal research programme. In the present study, a national survey (n = 162) was administered to stakeholders working with children and families throughout Ireland. A series of one-to-one interviews were also undertaken (n = 37) to amplify the survey findings. Also, one focus group was carried out with parents (n = 8) and one with members of the research team (n = 3). Several dissemination strategies were concurrently developed, executed and evaluated, based partly on survey and interview findings and guided by the knowledge translation planning template (Barwick, 2008; 2013; 2019).

The main factors influencing the dissemination of evidence, as identified by the stakeholders – were: a lack of resources; an under-developed understanding of research use and dissemination; insufficient collaboration and communication; and conflicting stakeholder priorities. Despite these challenges, the research programme was found to benefit from a multi-component KT plan to achieve the outlined dissemination goals.

The KT planning process allowed the research team to be more accountable, introspective and to work more efficiently. This helped increase the likelihood of more targeted and successful dissemination of the research findings, delivering a better return on research investment.

This is the first study of its kind (to our knowledge) to provide important insights for stakeholders in Ireland and elsewhere about how to improve the dissemination process. Effective KT planning can ultimately help to bridge the research-policy-practice gap and enable the effective translation of high-quality evidence in the early years’ sector to enhance outcomes for families in the shorter and longer-term.

Individuals with intellectual disability(ies) are living longer contributing to an overall increase in the average age of caregivers. The purpose of this paper is to review the literature on the physical, social and psychological needs of ageing carers of individuals with intellectual disability(ies) in the UK.

A scoping review framework was used to identify literature from eleven databases, the grey literature and the references lists of relevant studies. Only primary research studies that discussed the needs of non-professional carers, aged 65+ years old, of individuals with intellectual disability(ies) in the UK were included. No date restrictions were applied. Thematic analysis was used to narratively synthesise findings.

Six studies were included. Five key themes were identified: Living with fear, lack of information, rebuilding trust, proactive professional involvement and being ignored. Housing and support information is not communicated well to carers. Professionals require more training on carer needs and trust must be rebuilt between carers and professionals. Proactive approaches would help identify carer needs, reduce marginalisation, help carers feel heard and reduce the risk of care crisis. Greater recognition of mutual caring relationships is needed.

This review highlighted the needs of older caregivers for individuals with intellectual disability(ies) as well as the need for more high-quality research in this field. The information presented in this review may be considered by primary care providers and funding bodies when planning future support for this growing population of carers.

The purpose of this paper is to investigate the factors influencing customer loyalty to shopping centres across different emerging countries. Specifically, it seeks to determine how the cultural context moderates the direct effects of shopping centre perceived value and customer satisfaction on customer loyalty.

A shopping centre-intercept survey was conducted among 244 consumers in Morocco and 203 consumers in Tunisia. The proposed model was analysed using partial least squares path modelling.

The results demonstrate the impacts of perceived utilitarian and non-utilitarian value on customer satisfaction with a shopping centre, both moderated by the cultural context. Specifically, utilitarian, hedonic and relaxation values exert stronger influences on satisfaction in Tunisia than in Morocco; but socialisation value has a stronger impact on it in Morocco than in Tunisia. The influences of value dimensions on customer loyalty to the shopping centre do not vary between Tunisia and Morocco.

With these results shopping centre developers and retailers can develop more efficient strategies to target Maghreb emerging countries. For example, they should focus on factors that may increase the utilitarian, hedonic and relaxation values offered by shopping centres in Tunisia but address factors that facilitate socialisation value in Morocco.

By using a cross-culture perspective, this paper extends and enriches knowledge on shopping centre patronage in Maghreb countries. Also, it considers two non-utilitarian values (socialisation and relaxation), which are relevant in Maghreb countries.