887 research outputs found
Transdiagnostic CBT treatment of co-morbid anxiety and depression in an older adult: Single case experimental design
Background: Despite the prevalence of co-morbid anxiety and depression in older adults, evaluation of suitable clinical models is rare. Aims: This study tested the acceptability and effectiveness of a transdiagnostic approach to treating co-morbid anxiety and depression in an older adults in a routine clinical setting. Method: In an A/B single case experimental design, a patient completed five daily ideographic measures of anxiety and depression across baseline and treatment and the HADS at five time points over time, including 3-month follow-up. The 8-session treatment was transdiagnostic CBT informed by the Unified Protocol. Results: All sessions were attended. Significant baseline-treatment improvements were found for daily structure, mood, confidence and worry, with large associated effect sizes. The HADS showed that the patient met recovery criteria by the end of treatment, with some evidence of anxious relapse at follow-up. Conclusion: Transdiagnostic CBT offers promise as a treatment approach to mixed anxiety and depression in older adults. The model needs to be further tested using more rigorous and suitably powered methodologies
The Nuclear Science References (NSR) Database and Web Retrieval System
The Nuclear Science References (NSR) database together with its associated
Web interface, is the world's only comprehensive source of easily accessible
low- and intermediate-energy nuclear physics bibliographic information for more
than 200,000 articles since the beginning of nuclear science. The
weekly-updated NSR database provides essential support for nuclear data
evaluation, compilation and research activities. The principles of the database
and Web application development and maintenance are described. Examples of
nuclear structure, reaction and decay applications are specifically included.
The complete NSR database is freely available at the websites of the National
Nuclear Data Center http://www.nndc.bnl.gov/nsr and the International Atomic
Energy Agency http://www-nds.iaea.org/nsr.Comment: 16 pages, 5 figure
Exploring relapse through a network analysis of residual depression and anxiety symptoms after cognitive behavioural therapy : a proof-of-concept study
Objective: Many patients relapse within one year of completing effective cognitive behavioural therapy (CBT) for depression and anxiety. Residual symptoms at treatment completion have been demonstrated to predict relapse, and so this study used network analyses to improve specificity regarding which residual anxiety and depression symptoms predict relapse.
Method: A cohort study identified relapse cases following low- and high-intensity CBT in a stepped care psychological therapy service. The sample included N=867 ârecoveredâ treatment completers that attended a six-month follow-up review. At follow-up, N=93 patients had relapsed and N=774 remained in-remission. Networks of final treatment session depression (PHQ-9) and anxiety (GAD-7) symptoms were estimated for both sub-groups.
Results: Qualitatively similar symptom networks were found. Difficulty concentrating was a highly central symptom in the relapse network, whilst of only average centrality in the remission network. In contrast, trouble relaxing was highly central in the remission network, whilst of only average centrality in the relapse network.
Discussion: Identification of central residual symptoms holds promise in improving the specificity of prognostic models and the design of evidence-based relapse prevention strategies. The small sample of relapse cases limits this studyâs ability to draw firm conclusions
An Intelligent Empowering Agent (IEA) to Provide Easily Understood and Trusted Health Information Appropriate to the User Needs
Most members of the public, including patients, usually obtain health information from Web searches using generic search engines, which is often overwhelming, too generic, and of poor quality. Although patients may be better informed, they are often none the wiser and not empowered to communicate with medical professionals so that their care is compatible with their needs, values, and best interests. Intelligent Empowering Agents (IEA) use AI to filter medical information and assist the user in the understanding of health information about specific complaints or health in general. We have designed and developed a prototype of an IEA that dialogues with the user in simple language, collects health information from the Web, and provides tailored, easily understood, and trusted information. It empowers users to create their own comprehensive and objective opinion on health matters that concern them. This paper describes the IEA main characteristics and presents the results of subjective and objective tests carried out to assess the effectiveness of the IEA
Battlezone: An examination of the physiological responses, movement demands and reproducibility of small-sided cricket games
As cricket training typically involves separate skill and conditioning sessions, this study reported on the movement demands, physiological responses and reproducibility of the demands of small-sided cricket games. Thirteen amateur, male cricket players (age: 22.8 ± 3.5 years, height: 1.78 ± 0.06 m, body mass: 78.6 ± 7.1 kg) completed two sessions of a generic small-sided cricket game, termed Battlezone; consisting of six repeat 8-over bouts. Heart rate and movement demands were continuously recorded, whilst blood lactate concentration and perceived exertion were recorded after each respective bout. Batsmen covered the greatest distance (1147 ± 175 m) and demonstrated the greatest mean movement speed (63 ± 9 m · min-1) during each bout. The majority of time (65-86%) was spent with a heart rate of between 51-85% HRmax and a blood lactate concentration of 1.1-2.0 mmol · L-1. Rating of perceived exertion ranged between 4.2-6.0. Movement demands and physiological responses did not differ between standardised sessions within respective playing positions (P > 0.05). The reliability for the majority of movement demands and physiological responses were moderate to high (CV: 5-17%; ICC: 0.48-1.00) within all playing positions. These results suggest that the physiological responses and movement characteristics of generic small-sided cricket games were consistent between sessions within respective playing positions. © 2013 Copyright Taylor and Francis Group, LLC
The acceptability, effectiveness, and durability of cognitive analytic therapy : Systematic review and metaâanalysis
Objectives
This paper sought to conduct a metaâanalysis of the effectiveness and durability of cognitive analytic therapy (CAT) and assess the acceptability of CAT in terms of dropout rates.
Design
Systematic review and metaâanalysis.
Methods
PROSPERO registration: CRD42018086009. Searches identified CAT treatment outcome studies eligible to be narratively synthesized. Preâpost/postâfollowâup effect sizes (ESs) were extracted and synthesized in a randomâeffects metaâanalysis. Variations in effect sizes were explored using moderator analyses. Dropout rates were extracted. Secondary analyses synthesized betweenâgroup ES from trials of CAT.
Results
Twentyâfive studies providing preâpost CAT treatment outcomes were aggregated across three outcome comparisons of functioning, depression, and interpersonal problems. CAT produced large preâpost improvements in global functioning (ES = 0.86; 95% CI 0.71â1.01, N = 628), moderateâtoâlarge improvements in interpersonal problems (ES = 0.74, 95% CI 0.51â0.97, N = 460), and large reductions in depression symptoms (ES = 1.05, 95% CI 0.80â1.29, N = 586). All these effects were maintained or improved upon at followâup. Limited moderators of CAT treatment effect were identified. CAT demonstrated smallâmoderate, significant postâtreatment benefits compared to comparators in nine clinical trials (ES = 0.36â0.53; N = 352). The average dropout rate for CAT was 16% (range 0â33%).
Conclusions
Patients with a range of presenting problems appear to experience durable improvements in their difficulties after undergoing CAT. Recommendations are provided to guide the further progression of the CAT outcome evidence base
Numerical simulation of unconstrained cyclotron resonant maser emission
When a mainly rectilinear electron beam is subject to significant magnetic compression, conservation of magnetic moment results in the formation of a horseshoe shaped velocity distribution. It has been shown that such a distribution is unstable to cyclotron emission and may be responsible for the generation of Auroral Kilometric Radiation (AKR) an intense rf emission sourced at high altitudes in the terrestrial auroral magnetosphere. PiC code simulations have been undertaken to investigate the dynamics of the cyclotron emission process in the absence of cavity boundaries with particular consideration of the spatial growth rate, spectral output and rf conversion efficiency. Computations reveal that a well-defined cyclotron emission process occurs albeit with a low spatial growth rate compared to waveguide bounded simulations. The rf output is near perpendicular to the electron beam with a slight backward-wave character reflected in the spectral output with a well defined peak at 2.68GHz, just below the relativistic electron cyclotron frequency. The corresponding rf conversion efficiency of 1.1% is comparable to waveguide bounded simulations and consistent with the predictions of kinetic theory that suggest efficient, spectrally well defined radiation emission can be obtained from an electron horseshoe distribution in the absence of radiation boundaries.Publisher PD
CU Virginis - The First Stellar Pulsar
CU Virginis is one of the brightest radio emitting members of the magnetic
chemically peculiar (MCP) stars and also one of the fastest rotating. We have
now discovered that CU Vir is unique among stellar radio sources in generating
a persistent, highly collimated, beam of coherent, 100% polarised, radiation
from one of its magnetic poles that sweeps across the Earth every time the star
rotates. This makes the star strikingly similar to a pulsar. This similarity is
further strengthened by the observation that the rotating period of the star is
lengthening at a phenomenal rate (significantly faster than any other
astrophysical source - including pulsars) due to a braking mechanism related to
its very strong magnetic field.Comment: 10 pages including 2 figure
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