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The measurement and tracking of body movement within musical performances can provide valuable sources of data for studying interpersonal interaction and coordination between musicians. The continued development of tools to extract such data from video recordings will offer new opportunities to research musical movement across a diverse range of settings, including field research and other ecological contexts in which the implementation of complex motion capture systems is not feasible or affordable. Such work might also make use of the multitude of video recordings of musical performances that are already available to researchers. The present study made use of such existing data, specifically, three video datasets of ensemble performances from different genres, settings, and instrumentation (a pop piano duo, three jazz duos, and a string quartet). Three different computer vision techniques were applied to these video datasets—frame differencing, optical flow, and kernelized correlation filters (KCF)—with the aim of quantifying and tracking movements of the individual performers. All three computer vision techniques exhibited high correlations with motion capture data collected from the same musical performances, with median correlation (Pearson’s r) values of .75 to .94. The techniques that track movement in two dimensions (optical flow and KCF) provided more accurate measures of movement than a technique that provides a single estimate of overall movement change by frame for each performer (frame differencing). Measurements of performer’s movements were also more accurate when the computer vision techniques were applied to more narrowly-defined regions of interest (head) than when the same techniques were applied to larger regions (entire upper body, above the chest or waist). Some differences in movement tracking accuracy emerged between the three video datasets, which may have been due to instrument-specific motions that resulted in occlusions of the body part of interest (e.g. a violinist’s right hand occluding the head whilst tracking head movement). These results indicate that computer vision techniques can be effective in quantifying body movement from videos of musical performances, while also highlighting constraints that must be dealt with when applying such techniques in ensemble coordination research.

Thomas Aquinas sees a sharp metaphysical distinction between artifacts and substances, but does not offer any explicit account of it. We argue that for Aquinas the contribution that an artisan makes to the generation of an artifact compromises the causal responsibility of the form of that artifact for what the artifact is; hence it compromises the metaphysical unity of the artifact to that of an accidental unity. By contrast, the metaphysical unity of a substance is achieved by a process of generation whereby the substantial form is solely responsible for what each part and the whole of a substance are. This, we submit, is where the metaphysical difference between artifacts and substances lies for Aquinas. Here we offer on behalf of Aquinas a novel account of the causal process of generation of substances, in terms of descending forms, and we bring out its explanatory merits by contrasting it to other existing accounts in the literature.

Abstract The Special Mathematics Library of Turin University, founded in 1883, was fundamental in the development of two research schools under the leadership of C. Segre and G. Peano. First founded to house a growing collection of international journals acquired through both purchase and exchange from publishing centres worldwide, it later evolved into a ‘presence library’ modelled on the legendary Lesezimmer in Gottingen. A systematic study of the library's history and its directors' policies provides interesting insights into the various aspects of the international circulation of journals and their use at different times and in various contexts in Turin (Turin Academy of Sciences, Societa di cultura, national university library, etc.).

ABSTRACTIn this article we use the syntax of the noun phrase to evaluate two competing hypotheses: the traditional account, that Middle English is a West Germanic language with Old English as its immediate ancestor, and Emonds and Faarlund's (2014) proposal, that Middle English is a North Germanic language, the direct descendant of Old Norse. The development of nominal syntax shows that the Middle English noun phrase can be derived only from Old English, not from Old Norse. We examine six nominal characteristics; in each case, we find in Middle English exactly the construction that one would expect given the nominal syntax of previous Old English stages. The evidence from Old Norse shows that, although some of the same constructions did develop in the same way in the attested Norse varieties, the development occurred only at a later stage, too late to have affected the syntax of Middle English.

This document contains the abstracts for the 2018 Scandinavian Workshop on Applied Eye Tracking (SWAET 2018) which was held at Copenhagen Business School, Denmark, 23 to 24 August, 2018..

AbstractA morphosyntactic peculiarity that separates proper names from (most) other noun types is their ability to occur in a special type of plural, called associative plural, whose meaning is X and X’s associated person(s). In this paper, we apply a ‘converging evidence’ methodology to the analysis of associative plurals, by providing a diachronic typology of these plurals through the identification of the more frequent sources of associative plural markers that are attested in a sample of 80 languages, and by looking for emerging constructions for the expression of associative plurality in two corpora of English and Italian, two languages that do not have a grammaticalized way to encode this type of plurality. The analysis will show that associative plurals are likely to grammaticalize from a restricted pool of synchronic sources, and that these sources are mostly indexical sources and sources denoting the plural set, in accordance with the special semantics and referential properties of proper names.

David Deutsch (forthcoming) offers a solution to the Epistemic Problem for Everettian Quantum Theory. In this note I raise some problems for the attempted solution.

AbstractThis paper presents the analysis of a series of workshops conducted in Italian multicultural classrooms, involving children aged 9–12. The workshops were based on the collection of photos representing the children’s memory and were designed to enhance dialogic facilitation of narratives in the classroom. Starting from the collected photos, a facilitator promoted the interactional production of narratives of memory and identity. The workshops were entirely video-recorded for purposes of analysis. First of all, the paper presents the theoretical background of the analysis, including the concepts of narratives, memory, social use of photography, facilitation of children’s agency, and intercultural communication. Secondly, it includes one example of the analysis conducted on the basis of the transcripts of the video-recorded workshops showing the ways in which narratives of children’s memory have been facilitated during the workshops.

Abstract Certain historical processes and sign language ideologies have led to the dissemination of American Sign Language (ASL) signs throughout Southeast Asia via deaf education projects, international development interventions, and tourism, notably in Cambodia and Indonesia. These ideologies normalized attempts to develop standardised sign systems based on national spoken languages and the introduction of signs from foreign sign languages, especially ASL. This history has shaped and mobilized ideas among deaf sign language users about language contact, the spread of hegemonic national sign languages, and the vitality of sign languages outside of the US and western Europe. Some of these ideologies manifest in deaf signers’ concerns about the vitality of what are often perceived to be non-hegemonic sign languages (e.g., sign languages that are not ASL, Auslan, or BSL) and language practices. By examining discourses and practices in the context of encounters between deaf tourists and deaf leaders in Bali, this article approaches larger questions about the territorialization of sign languages, linguistic boundaries, language contact, and sign language vitality.