Singing Knit: Soft Knit Biosensing for Augmenting Vocal Performances

This paper discusses the design of the Singing Knit, a wearable knit collar for measuring a singer's vocal interactions through surface electromyography. We improve the ease and comfort of multi-electrode bio-sensing systems by adapting knit e-textile methods. The goal of the design was to preserve the capabilities of rigid electrode sensing while addressing its shortcomings, focusing on comfort and reliability during extended wear, practicality and convenience for performance settings, and aesthetic value. We use conductive, silver-plated nylon jersey fabric electrodes in a full rib knit accessory for sensing laryngeal muscular activation. We discuss the iterative design and the material decision-making process as a method for building integrated soft-sensing wearable systems for similar settings. Additionally, we discuss how the design choices through the construction process reflect its use in a musical performance context

Phage display selected magnetite interacting Adhirons for shape controlled nanoparticle synthesis

Adhirons are robust, well expressing, peptide display scaffold proteins, developed as an effective alternative to traditional antibody binding proteins for highly specific molecular recognition applications. This paper reports for the first time the use of these versatile proteins for material binding, and as tools for controlling material synthesis on the nanoscale. A phage library of Adhirons, each displaying two variable binding loops, was screened to identify specific proteins able to interact with [100] faces of cubic magnetite nanoparticles. The selected variable regions display a strong preference for basic residues such as lysine. Molecular dynamics simulations of amino acid adsorption onto a [100] magnetite surface provides a rationale for these interactions, with the lowest adsorption energy observed with lysine. These proteins direct the shape of the forming nanoparticles towards a cubic morphology in room temperature magnetite precipitation reactions, in stark contrast to the high temperature, harsh reaction conditions currently used to produce cubic nanoparticles. These effects demonstrate the utility of the selected Adhirons as novel magnetite mineralization control agents using ambient aqueous conditions. The approach we outline with artificial protein scaffolds has the potential to develop into a toolkit of novel additives for wider nanomaterial fabrication

Building an IDE for an embedded system using web technologies

Implementing an understandable, accessible and effective user interface is a major challenge for many products in the microcontroller and embedded computing community. Bela, an embedded system for ultra-low latency audio and sensor processing, features a browser-based integrated development environment (IDE) using web technologies (Node.js, HTML5 and CSS). This methodology has allowed us to create an IDE that is simplified and intuitive for beginners while still being useful to those more advanced, thus supporting users as they evolve in expertise

How Polarized Have We Become? A Multimodal Classification of Trump Followers and Clinton Followers

Polarization in American politics has been extensively documented and analyzed for decades, and the phenomenon became all the more apparent during the 2016 presidential election, where Trump and Clinton depicted two radically different pictures of America. Inspired by this gaping polarization and the extensive utilization of Twitter during the 2016 presidential campaign, in this paper we take the first step in measuring polarization in social media and we attempt to predict individuals' Twitter following behavior through analyzing ones' everyday tweets, profile images and posted pictures. As such, we treat polarization as a classification problem and study to what extent Trump followers and Clinton followers on Twitter can be distinguished, which in turn serves as a metric of polarization in general. We apply LSTM to processing tweet features and we extract visual features using the VGG neural network. Integrating these two sets of features boosts the overall performance. We are able to achieve an accuracy of 69%, suggesting that the high degree of polarization recorded in the literature has started to manifest itself in social media as well.Comment: 16 pages, SocInfo 2017, 9th International Conference on Social Informatic

Supported accommodation for people with mental health problems: the QuEST research programme with feasibility RCT

This work was produced by Killaspy et al. under the terms of a commissioning contract issued by the Secretary of State for Health and Social Care. This issue may be freely reproduced for the purposes of private research and study and extracts (or indeed, the full report) may be included in professional journals provided that suitable acknowledgement is made and the reproduction is not associated with any form of advertising. Applications for commercial reproduction should be addressed to: NIHR Journals Library, National Institute for Health Research, Evaluation, Trials and Studies Coordinating Centre, Alpha House, University of Southampton Science Park, Southampton SO16 7NS, UK. Background Across England, around 60,000 people live in mental health supported accommodation: residential care, supported housing and floating outreach. Residential care and supported housing provide on-site support (residential care provides the highest level), whereas floating outreach staff visit people living in their own tenancies. Despite their abundance, little is known about the quality and outcomes of these services. Objectives The aim was to assess the quality, costs and effectiveness of mental health supported accommodation services in England. The objectives were (1) to adapt the Quality Indicator for Rehabilitative Care (QuIRC) and the Client Assessment of Treatment scale for use in mental health supported accommodation services; (2) to assess the quality and costs of these services in England and the proportion of people who ‘move on’ to less supported accommodation without placement breakdown (e.g. to move from residential care to supported housing or supported housing to floating outreach, or, for those receiving floating outreach, to manage with fewer hours of support); (3) to identify service and service user factors (including costs) associated with greater quality of life, autonomy and successful move-on; and (4) to carry out a feasibility trial to assess the required sample size and appropriate outcomes for a randomised evaluation of two existing models of supported accommodation. Design Objective 1 – focus groups with staff (n = 12) and service users (n = 16); psychometric testing in 52 services, repeated in 87 services (adapted QuIRC) and with 618 service users (adapted Client Assessment of Treatment scale). Objectives 2 and 3 – national survey and prospective cohort study involving 87 services (residential care, n = 22; supported housing, n = 35; floating outreach, n = 30) and 619 service users followed over 30 months; qualitative interviews with 30 staff and 30 service users. Objective 4 – individually randomised, parallel-group feasibility trial in three centres. Setting English mental health supported accommodation services. Participants Staff and users of mental health supported accomodation services. Interventions Feasibility trial involved two existing models of supported accommodation: supported housing and floating outreach. Main outcome measures Cohort study – proportion of participants who successfully moved to less supported accommodation at 30 months’ follow-up without placement breakdown. Feasibility trial – participant recruitment and withdrawal rates. Results The adapted QuIRC [QuIRC: Supported Accomodation (QuIRC-SA)] had excellent inter-rater reliability, and exploratory factor analysis confirmed its structural validity (all items loaded onto the relevant domain at the > ± 0.3 level). The adapted Client Assessment of Treatment for Supported Accommodation had good internal consistency (Cronbach’s alpha 0.89) and convergent validity (r s = 0.369; p < 0.001). Supported housing services scored higher than residential care and floating outreach on six out of seven QuIRC-SA quality domains. Service users had a high prevalence of severe self-neglect (57%) and vulnerability to exploitation (37%). Those in supported housing (25%) and floating outreach (20%) experienced more crime than those in residential care (4%) but had greater autonomy. Residential care was the most expensive service (mean cost per resident per week was £581 for residential care, £261 for supported housing and £66 for floating outreach) but supported users with the greatest needs. After adjusting for clinical differences, quality of life was similar for users of supported housing and residential care (mean difference –0.138, 95% confidence interval –0.402 to 0.126; p = 0.306), whereas autonomy was greater for supported housing users (mean difference 0.145, 95% confidence interval 0.010 to 0.279; p = 0.035). Qualitative interviews showed that staff and service users shared an understanding of service goals and what constituted effective support. After adjusting for clinical differences, those in floating outreach were more likely to move on successfully at 30 months’ follow-up than those in residential care [odds ratio (OR) 7.96; p < 0.001] and supported housing (OR 2.74; p < 0.001), and this was more likely for users of supported housing than residential care (OR 2.90; p = 0.04). Successful move-on was positively associated with scores on two QuIRC-SA domains: the degree to which the service promoted ‘human rights’ (e.g. facilitating access to advocacy) and ‘recovery-based practice’ (e.g. holding therapeutic optimism and providing collaborative, individualised care planning). Service use costs for those who moved on were significantly lower than for those who did not. Recruitment in the feasibility trial was difficult: 1432 people were screened but only eight were randomised. Barriers included concerns about accommodation being decided at random and a perceived lack of equipoise among clinicians who felt that individuals needed to ‘step down’ from supported housing to floating outreach services. Conclusions We did not find clear evidence on the most effective model(s) of mental health supported accommodation. Indeed, our feasibility study suggests that trials comparing effectiveness cannot be conducted in this country. A range of options are required to provide appropriate support to individuals with differing needs. Future work Future research in this field requires alternatives to trials. Service planners should be guided by the mental health needs of the local population and the pros and cons of the different services that our study identified, rather than purely financial drivers. Trial registration Current Controlled Trials ISRCTN19689576. Funding This programme was funded by the National Institute for Heath Research (NIHR) Programme Grants for Applied Research programme and will be published in full in Programme Grants for Applied Research; Vol. 7, No. 7. See the NIHR Journals Library website for further project information. The fundholders are Camden and Islington NHS Foundation Trust and the research is a collaboration between University College London, Queen Mary University of London, King’s College London, the University of Ulster and Durham University. The research reported in this issue of the journal was funded by PGfAR as project number RP-PG-0610-10097

Light scattering and phase behavior of Lysozyme-PEG mixtures

Measurements of liquid-liquid phase transition temperatures (cloud points) of mixtures of a protein (lysozyme) and a polymer, poly(ethylene glycol) (PEG) show that the addition of low molecular weight PEG stabilizes the mixture whereas high molecular weight PEG was destabilizing. We demonstrate that this behavior is inconsistent with an entropic depletion interaction between lysozyme and PEG and suggest that an energetic attraction between lysozyme and PEG is responsible. In order to independently characterize the lysozyme/PEG interactions, light scattering experiments on the same mixtures were performed to measure second and third virial coefficients. These measurements indicate that PEG induces repulsion between lysozyme molecules, contrary to the depletion prediction. Furthermore, it is shown that third virial terms must be included in the mixture's free energy in order to qualitatively capture our cloud point and light scattering data. The light scattering results were consistent with the cloud point measurements and indicate that attractions do exist between lysozyme and PEG.Comment: 5 pages, 2 figures, 1 tabl

Dissimilar friction stir welding of duplex stainless steel to low alloy structural steel

In the present study, 6 mm nominal thickness dissimilar steel plates were joined using friction stir welding. The materials used were duplex stainless steel and low alloy structural steel. The weld was assessed by metallographic examination and mechanical testing (transverse tensile and fatigue). Microstructural examination identified four distinct weld zones and a substantially hard region within the stir zone at the base of the weld tool pin. Fatigue specimens demonstrated high level fatigue life and identified four distinct fracture modes

‘Play it by ear’ – teachers’ responses to ear-playing tasks during one to one instrumental lessons

This paper reports findings from the Ear Playing Project (EPP) in relation to the teaching strategies that 15 instrumental teachers adopted during one-to-one instrumental lessons whilst helping their students to copy music by ear from a recording. Overall, the teachers used a variety of strategies including singing and humming along with or without the recording, asking questions, and giving verbal explanation and positive feedback. By the end of the project the teachers indicated that the project showed them a new and enjoyable way to introduce aural-training tasks, it helped them develop their own confidence in ear-playing and it gave them the opportunity to observe and assess their students’ needs more carefully. The benefits for the students included greater enjoyment during instrumental lessons, development of aural and improvisation skills and greater confidence in instrumental playing

A systematic review and metaethnography to identify how effective, cost-effective, accessible and acceptable self-management support interventions are for men with long-term conditions (SELF-MAN)

Review methods: In the quantitative review, data on relevant outcomes, patient populations, intervention type and study quality were extracted. Quality appraisal was conducted independently by two reviewers using the Cochrane risk of bias tool. Meta-analysis was conducted to compare the effects of interventions in male, female and mixed-sex groups. In the metaethnography, study details, participant quotes (first-order constructs) and study authors’ themes/concepts (second-order constructs) were extracted. Quality appraisal was conducted independently by two reviewers using the Critical Appraisal Skills Programme tool. Data were synthesised according to a metaethnography approach. Third-order interpretations/constructs were derived from the extracted data and integrated to generate a ‘line-of-argument’ synthesis. Results: Forty RCTs of self-management support interventions in male-only samples, and 20 RCTs where an analysis by gender was reported, were included in the quantitative review. Meta-analysis suggested that interventions including physical activity, education and peer support have a positive impact on quality of life in men, and that men may derive more benefit than women from them, but there is currently insufficient evidence to draw definitive conclusions. Thirty-eight qualitative studies relevant to men’s experiences of, and perceptions of, self-management support were included in the qualitative review. The metaethnography identified four concepts: (1) need for purpose; (2) trusted environments; (3) value of peers; and (4) becoming an expert. Findings indicated that men may feel less comfortable engaging in support if it is perceived to be incongruous with valued aspects of masculine identities. Men may find support interventions more attractive when they have a clear purpose, are action-oriented and offer practical strategies that can be integrated into daily life. Support delivered in an environment that offers a sense of shared understanding can be particularly appealing to some men. Conclusions: Health professionals and those involved in designing interventions may wish to consider whether or not certain components (e.g. physical activity, education, peer support) are particularly effective in men, although more research is needed to fully determine and explore this. Interventions are most likely to be accessible and acceptable to men when working with, not against, valued aspects of masculine identities