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The purpose of this paper is to clarify the ontological and epistemological basis of classification.

Attention is drawn to a 1785 article on abstraction by Thomas Reid and the contents and theories of the article are explained. The Reid article both provides a sound approach to classification and is interesting historically as it influenced the classification pioneer Charles Ammi Cutter who, in turn, is responsible for much of the modern theory of functional bibliography. Reid's account is supplemented by brief descriptions of fallibilism and fuzziness. An associated view, Aristotelian essentialism is explained and criticized. Some observations are offered on the role of prototypes in classification and on the monothetic‐polythetic distinction.

Reid's theories, suitably embedded in fallibilism and augmented with a respect for truth, provide a sound ontological and epistemological basis for classification.

Reid's essay, together with an appreciation of fallibility and determinate and indeterminate properties, amount to a good basic theoretical foundation for cataloging.

To provide an introduction to concepts and resources that will be useful to library professionals learning about information ethics.

This paper argues for the importance of information ethics to twenty‐first century library professionals. It describes what various authors have said about how information ethics can be applied to the ethical dilemmas faced by library professionals.

In order to deal effectively with their ethical dilemmas, library professionals must have a good working knowledge of information ethics. Codes of professional ethics can help to provide such knowledge, but they are not sufficient. Courses on information ethics must be part of the education of information professionals. Such courses should provide library professionals with an understanding of ethical theories and how they apply to concrete practical cases. Such courses should also make explicit the connection between information ethics and the mission of the library professional.

This paper is not intended to provide an exhaustive list of publications on the topic of information ethics and library professionals.

This paper provides library professionals with a concise introduction to information ethics.

The aviation industry has seen consistent growth over the past few decades. To maintain its sustainability and competitiveness, it is important to have a comprehensive understanding of the environmental impacts across the entire life cycle of the industry, including materials, processes and resources; manufacturing and production; lifetime services; reuse; end-of-life; and recycling. One important component of aircraft engines, integral rotors known as Blisks, are made of high-value metallic alloys that require complex and resource-intensive manufacturing processes. The purpose of this paper is to assess the ecological and economical impacts generated through Blisk production and thereby identify significant ‘hot-spots’.

This paper focuses on the methodology and approach for conducting a full-scale Blisk life cycle assessment (LCA) based on ISO 14040/44. Unlike previous papers in the European Aerospace Science Network series, which focused on the first two stages of LCA, this publication delves into the “life cycle impact assessment” and “interpretation” stages, providing an overview of the life cycle inventory modeling, impact category selection and presenting preliminary LCA results for the Blisk manufacturing process chain.

The result shows that the milled titanium Blisk has a lower CO₂ footprint than the milled nickel Blisk, which is less than half of the global warming potential (GWP) of the milled nickel Blisk. A main contributor to GWP arises from raw material production. However, no recycling scenarios were included in the analysis, which will be the topic of further investigations.

The originality of this work lies in the detailed ecological assessment of the manufacturing for complex engine components and the derivation of hot spots as well as potential improvements in terms of eco-footprint reduction throughout the products cradle-to-gate cycle. The LCA results serve as a basis for future approaches of process chain optimisation, use of “greener” materials and individual process improvements.

Understood as the simultaneous experience of necessarily conflicting attitudes, wishes, feelings, or intentions, the concept of ambivalence has a complex history in psychological and social analysis. Lüscher (2000) reviewed the history of this concept, initially used in the study of abnormal states, and then generalized to the realm of the usual and expectable in social life. It should be noted at the outset that the term “ambivalence” presents two problems for social analysis: adoption of a term initially intended to portray abnormal states for the expectable course of adult life, and the extension of a concept founded on the study of personal states to social analysis. Consistent with Bleuler’s (Riklin, 1910/1911) initial discussion of the term ambivalence,¹ Freud (1909, 1912, 1912–1913, 1914) attempted to resolve the first problem by showing that ambivalence – as the experience of mixed and conflicting sentiments regarding those who are particularly important in one’s own life – inevitably emerges out of the child’s effort to resolve the tension between social reality and his or her own desire focused on the parents of early childhood. At the same time, Freud compounded the second problem by regarding the realm of the social as the personal writ large.

The purpose of this paper is to explore how emergent changes are handled in research and development (R&D) projects. R&D projects’ business potential lies in their exploration of the unknown; conversely, this makes them uncertain endeavours, prone to emergent changes.

Uses a single-case-study design, based on a projects-as-practice perspective and a soft systems methodology (SSM) analysis, to map how ad hoc R&D teams handle emergent changes, specifically the solution identification and assessment phase and the implementation plan. An R&D project in the power industry, involving over 250 engineers, was analysed.

This paper shows how emergent changes are handled differently from initiated changes during the decision-making phase. The system analysis shows that the most critical factors for managing these changes are: collective reflection between project parties; and including experienced engineers in implementation-plan reviews.

The results are of relevance both to R&D managers aiming to improve team performance and to general project management. Informal notions of emergent changes can be formalised in the change request process. Weaknesses in the project team’s organisation are highlighted, and details of how of how to mitigate these are provided.

Combines engineering-design and project-management research on emergent changes, adding to the former regarding people–organisational and strategic issues. Furthers understanding of the projects-as-practice approach and emergent change (deviations) handling by ad hoc teams in a project environment. SSM has not previously been used to explore aspects of projects-as-practice, and this is a novel way of adding to the body of knowledge on project praxis and practise.

Following an experiential marketing approach, this study addresses whether customer destination-based experiences (CDBE) affect tourists’ loyalty and emotions and if positive and negative emotions mediate this relationship. Hence, this study aims to verify the role positive and negative emotions play in the link between CDBE and tourists’ loyalty in a safe and joyful tourism destination in Europe.

A conceptual model was tested using data collected from tourists visiting the Algarve region, a mature seaside tourism destination in southern Portugal. The relationships implicit in the model were tested through the partial least squares structural equation modelling method.

The findings highlight that positive and negative tourist’s emotional responses mediate the relationship between CDBE and loyalty. Moreover, tourists’ experience and loyalty are influenced by their positive and negative emotions. Practical and theoretical implications are discussed.

Leveraged on extant research gaps, this study contributes to deepening the existing tourism literature by discussing whether CDBE affect tourists’ loyalty and emotions and whether these positive and negative emotions mediate that relationship in the context of a highly appraised touristic destination in Europe.

Throughout history, from ballads to requiems, music has played an important social role in reflection on mortality. Not only do musicians articulate their angst and thoughts about death, but, in so doing, they enable listeners to explore their own feelings. While the relationship between music and mental health can be examined from a number of perspectives, two broad approaches can be taken: artist-centred approaches and listener-centred approaches. The first analyses the life and work of artists, focussing particularly on the ways in which they explore death and angst in their music. The second looks at the ways in which the life and work of an artist is interpreted by listeners. Within these general approaches, a complex set of questions emerge – often at the interface of both approaches. How is the music used by listeners in their reflection on mortality? How is music used to manage mental health? Does reflection on the life and work of an artist contribute to suicidal ideation? Is the reception of music altered by an artist’s suicide? Using both these approaches and drawing particularly on the work of Émile Durkheim, this discussion demonstrates the significance of popular music analysis for death studies, focussing particularly on the issues surrounding popular music’s relationship to suicidal ideation.