Concentric tubes cold-bonded by drawing and internal expansion

Metal tubes bonded together without heat application or brazing materials retain strength at elevated temperatures, and when subjected to constant or cyclic temperature gradients. Combination drawing and expansion process produces residual tangential tensile stress in the outer tube and tangential compressive stress in the inner tube

Linguistic incompetence: giving an account of researching multilingually

This paper considers the place of linguistic competence and incompetence in the context of researching multilingually. It offers a critique of the concept of competence and explores the performative dimensions of multilingual research and its narration, through the philosophy of Judith Butler, and in particular her study Giving an account of oneself. It explores aspects of risk, justice, narrative limit and a morality of multilingualism in emergent multilingual research frameworks. These theoretical dimensions are explored through consideration of ‘linguistically incompetent’ ethnographic work with refugees and asylum seekers, in contexts of hospitality and in life long learning research in the Gaza Strip, and of early attempts to learn new languages. The paper offers a prospect of a relational approach to researching multilingually and affirms the vulnerability at the heart of linguistic hospitality

Desperately Seeking a Communicative Approach: English Pronunciation in a Sample of French and Polish Secondary School Textbooks

The first part of this paper analyses pronunciation exercises in a representative sample of textbooks from each country. Pronunciation exercises were classified based on the degree to which they mobilize communicative abilities, according to the five categories of a Communicative Framework for teaching pronunciation (Celce-Murcia et al., 2010, p45): Description & analysis, Listening discrimination, Controlled practice, Guided practice, Communicative practice. The first category involves little risk-taking by the learner, usually focusses on form and allows little freedom. At the other end of the spectrum, communicative practice involves a focus on meaning and interaction, with the concomitant greater freedom to make mistakes. The exercises were then analysed to see which segmental and/or prosodic features they favoured and to what extent

Midcourse Corrections and Life Satisfaction in a Sample of Mid-Career Doctoral Students

The focus of this study was to examine motivations and reactions in context of a midlife decision to seek a doctoral degree. Participants were 116 non-traditional age, men and women graduate students and recent alumni from one of three geographically distributed and blended delivery model doctoral programs. Demographic information was collected, including career history and goals, age, gender, and ethnicity. The mean and median ages were between 41 and 50. The research questionnaire featured narrative questions regarding “midcourse corrections,” any experienced trauma, and life satisfactions. Autobiographical material was also analyzed thematically, providing further illustrative examples of the midlife experiences in the course of negotiating a doctoral education. Both the narrative responses and autobiographies were analyzed using content analysis (Ryan & Bernard, 2000). Forty-four percent of the sample reported seeking the doctoral degree as part of a career change plan, while 56% sought to achieve an advanced degree in their current fields. Despite a high rate of reported regret, surprise, and even trauma, considerable life satisfaction (91%) was reported as the result of seeking doctoral education in midlife, by definition a “midcourse correction.

Challenging Social Cognition Models of Adherence:Cycles of Discourse, Historical Bodies, and Interactional Order

Attempts to model individual beliefs as a means of predicting how people follow clinical advice have dominated adherence research, but with limited success. In this article, we challenge assumptions underlying this individualistic philosophy and propose an alternative formulation of context and its relationship with individual actions related to illness. Borrowing from Scollon and Scollon’s three elements of social action – “historical body,” “interaction order,” and “discourses in place” – we construct an alternative set of research methods and demonstrate their application with an example of a person talking about asthma management. We argue that talk- or illness-related behavior, both viewed as forms of social action, manifest themselves as an intersection of cycles of discourse, shifting as individuals move through these cycles across time and space. We finish by discussing how these dynamics of social action can be studied and how clinicians might use this understanding when negotiating treatment with patients

From 'scientific revolution' to 'unscientific revolution': an analysis of approaches to the history of generative linguistics

This paper is devoted to the challenge that generative linguistics poses for linguistic historiography. As a first step, it presents a systematic overview of 19 approaches to the history of generative linguistics. Second, it analyzes the approaches overviewed by asking and answering the following questions: (a) To what extent and how are the views at issue biased? (b) What central topics do the approaches discuss, how successfully do they tackle them, and how do the various standpoints converge and diverge? (c) How do the approaches relate to general trends in the philosophy and history of science? The concluding step summarizes our findings with respect to Chomsky’s impact on linguistic historiography

Survivors and Renewers

Article