Integrating online communities and social networks with computerised treatment for insomnia: a qualitative study of service user and primary health care professional perspectives

The problem: Insomnia is the most commonly reported psychological complaint in Britain. Although hypnotic drugs are widely used for treatment of insomnia, they are only licensed short term and adverse effects are common. Cognitive Behavioural Therapy for insomnia (CBT-I), which is effective and safe long term, is recommended first line but is not widely used nor available, in part because of the lack of trained providers. In response to this, Computerised Cognitive Behavioural Therapy (CCBT) has been advocated. Existing CCBT programmes can suffer from poor rates of uptake, adherence and completion. We aimed to investigate patients and practitioners’ views on how CCBT for insomnia (CCBT-I) could be improved by incorporating features of modern technology including social networking functions. The approach: We used a qualitative design and the theory of planned behaviour to underpin the study. Interviews and focus groups were held with adult service users and health professionals using a topic guide designed to elicit participants’ beliefs, intentions and controlling factors that might facilitate or create barriers to the uptake and adherence to CCBT-I. We explored the data using thematic analysis supported by Nvivo. Findings: We interviewed 23 health professionals and 28 patients. We identified multi-faceted issues focused on meta-themes of trust and functionality which were perceived to increase likelihood of successful uptake and adherence. Trust and confidence would be increased if CCBT-I was perceived to be evidence-based and accredited; when referral was from a trusted professional within a supervised package of care; and when online support and follow-up were provided. Interaction with other users, by integrating CCBT-I with social networking, was perceived to provide mutual support but concerns from people with sleep problems included apprehension about online ‘strangers’ and concerns from practitioners included information security. Asynchronous communication such as posting a note, commenting on a forum or adding to a thread was considered safer than engaging in real-time on-line communication. To improve functionality patients wanted mobile applications; access in short periods; self-assessment of insomnia and its causes; more personalised information on sleep; an interactive approach; and contact with other users to be moderated or overseen. Consequences: Although previous qualitative studies have looked at CCBT uptake and adherence, none have looked at insomnia exclusively or explored the feasibility, advantages and drawbacks of online communication between participants. Improving uptake and adherence to online programmes for insomnia requires attention to design features which are focused on trust and functionality. Although computerised therapies for insomnia would allow more people to access treatment, some would not be suitable for online therapies because of lack of online access or poor computer literacy. The results of the study are being used the development of a novel platform for CCBT for insomnia and other health conditions

Integrating online communities and social networks with computerised treatment for insomnia: a qualitative study of service user and multiprofessional primary health care perspectives

Purpose: We explored patient and multiprofessional health perspectives to inform the development of a computerised cognitive behavioural therapy programme for insomnia (CCBT-I) that includes social networking. Theory: We used a qualitative design and theory of planned behaviour to underpin the analysis. Methods: Interviews and focus groups were held with service users and health professionals to elicit beliefs and intentions that might facilitate or create barriers to the uptake and adherence to CCBT-I. Findings: We interviewed 23 health professionals and 28 patients. Features designed to increase confidence in CCBT-I; engender trust in professional relationships; provide online support and improve programme functionality were perceived to increase the successful uptake and adherence. Interaction with other users via integrated social networking would provide mutual support but concerns included apprehension about online ‘strangers’ and information security. Patients wanted mobile applications; access in short periods; self-assessment; more interactive, personalised information on sleep and moderated contact with other users. Discussion: Improving uptake and adherence to online programmes for insomnia requires design features which are focused on trust and functionality. Computerised therapies for insomnia would allow access treatment for more people across geographical and heath system borders

The Fisher Geometry and Geodesics of the Multivariate Normals, without Differential Geometry

Choosing the Fisher information as the metric tensor for a Riemannian manifold provides a powerful yet fundamental way to understand statistical distribution families. Distances along this manifold become a compelling measure of statistical distance, and paths of shorter distance improve sampling techniques that leverage a sequence of distributions in their operation. Unfortunately, even for a distribution as generally tractable as the multivariate normal distribution, this information geometry proves unwieldy enough that closed-form solutions for shortest-distance paths or their lengths remain unavailable outside of limited special cases. In this review we present for general statisticians the most practical aspects of the Fisher geometry for this fundamental distribution family. Rather than a differential geometric treatment, we use an intuitive understanding of the covariance-induced curvature of this manifold to unify the special cases with known closed-form solution and review approximate solutions for the general case. We also use the multivariate normal information geometry to better understand the paths or distances commonly used in statistics (annealing, Wasserstein). Given the unavailability of a general solution, we also discuss the methods used for numerically obtaining geodesics in the space of multivariate normals, identifying remaining challenges and suggesting methodological improvements.Comment: 22 pages, 8 figures, further figures and algorithms in supplemen

Analysis of sloppiness in model simulations: unveiling parameter uncertainty when mathematical models are fitted to data

This work introduces a Bayesian approach to assess the sensitivity of model outputs to changes in parameter values, constrained by the combination of prior beliefs and data. This novel approach identifies stiff parameter combinations that strongly affect the quality of the model-data fit while simultaneously revealing which of these key parameter combinations are informed primarily from the data or are also substantively influenced by the priors. We focus on the very common context in complex systems where the amount and quality of data are low compared to the number of model parameters to be collectively estimated, and showcase the benefits of our technique for applications in biochemistry, ecology, and cardiac electrophysiology. We also show how stiff parameter combinations, once identified, uncover controlling mechanisms underlying the system being modeled and inform which of the model parameters need to be prioritized in future experiments for improved parameter inference from collective model-data fitting

Bonding Crowns and Bridges with Resin Cement

Background Bonding crowns and bridges with resin cement can improve retention and reinforcement of the restoration. However, there is variation in the steps taken by different practitioners to achieve this goal. Methods The authors developed a survey on bonding dental crowns and bridges with resin cement and distributed it electronically to the American Dental Association Clinical Evaluators (ACE) Panel on May 22, 2020. The survey remained open for 2 weeks. Descriptive data analysis was conducted using SAS Version 9.4. Results A total of 326 panelists responded to the survey, and 86% of respondents who place crowns or bridges use resin cements for bonding. When placing a lithium disilicate restoration, an almost equal proportion of respondents etch it with hydrofluoric acid in their office or asked the laboratory to do it for them, and more than two-thirds use a silane primer before bonding. For zirconia restorations, 70% reported their restorations are sandblasted in the laboratory, and 39% use a primer containing 10-methacryloyloxydecyl dihydrogen phosphate. One-half of respondents clean their lithium disilicate or zirconia restorations with a cleaning solution. Resin cements used with a primer in the etch-and-rinse mode are the most widely used. The technique used to cure and clean excess resin cement varies among respondents. Conclusions The types of resin cements used, tooth preparation, crown or bridge preparation, and bonding technique vary among this sample. Practical Implications Although many dentists bond crowns and bridges on the basis of best practices, improvement in the process may be achieved by dentists communicating with their laboratory to confirm the steps performed there, ensuring an effective cleaning technique is used after try-in and verifying that the correct primer is used with their chosen restorative material

Methamphetamine Use: A Narrative Review of Adverse Effects and Related Toxicities.

Methamphetamine has been labeled America\u27s most dangerous drug and has received significant public health attention. Stimulant addiction and tolerance are heavily documented in the literature; increasingly larger doses maintain euphoria in short time periods to withstand stimulant tolerance. Stimulant deaths are high in the United States and abroad. Between 2013 and 2019, deaths related to methamphetamine use quadrupled from 3,616 to 16,127. Methamphetamine use increased four-fold from 2015 to 2016. Due to this increase in methamphetamine use and its associated medical complications, the mortality rate associated with methamphetamine use has doubled over the past ten years. Cardiopulmonary symptoms include chest pain, palpitations, and shortness of breath. Methamphetamine-related myocardial infarction can also occur. Central nervous system symptoms include agitation, anxiety, delusions, hallucinations, and seizures. Methamphetamine-induced psychosis may unmask underlying psychiatric disorders. It can also cause cerebral vasculitis, which elicits cortical blindness and ischemic strokes. Methamphetamine-induced neurotoxicity in serotonergic systems is more diffuse, involving the striatum, hippocampus, septum, amygdala, and hypothalamus leading to mood changes, psychosis, and memory impairment. This narrative review will aim to highlight the adverse effects as well as the toxicity that can occur with methamphetamine use

ESET histone methyltransferase is essential to hypertrophic differentiation of growth plate chondrocytes and formation of epiphyseal plates

AbstractThe ESET (also called SETDB1) protein contains an N-terminal tudor domain that mediates protein–protein interactions and a C-terminal SET domain that catalyzes methylation of histone H3 at lysine 9. We report here that ESET protein is transiently upregulated in prehypertrophic chondrocytes in newborn mice. To investigate the in vivo effects of ESET on chondrocyte differentiation, we generated conditional knockout mice to specifically eliminate the catalytic SET domain of ESET protein only in mesenchymal cells. Such deletion of the ESET gene caused acceleration of chondrocyte hypertrophy in both embryos and young animals, depleting chondrocytes that are otherwise available to form epiphyseal plates for endochondral bone growth. ESET-deficient mice are thus characterized by defective long bone growth and trabecular bone formation. To understand the underlying mechanism for ESET regulation of chondrocytes, we carried out co-expression experiments and found that ESET associates with histone deacetylase 4 to bind and inhibit the activity of Runx2, a hypertrophy-promoting transcription factor. Repression of Runx2-mediated gene transactivation by ESET is dependent on its H3–K9 methyltransferase activity as well as its associated histone deacetylase activity. In addition, knockout of ESET is associated with repression of Indian hedgehog gene in pre- and early hypertrophic chondrocytes. Together, these results provide clear evidence that ESET controls hypertrophic differentiation of growth plate chondrocytes and endochondral ossification during embryogenesis and postnatal development