8 research outputs found
Expert recommendation for knowledge management in academia
No full textRecommendation systems are not only important in ecommerce, but in academia as well: They support scientists in finding relevant literature and also potential collaboration partners. It is essential that such a recommendation system proposes the most relevant people. Scientometric similarity measurements like co-citation and bibliographic coupling analysis have proved to give a good representation of research activities and hence it can be said that they put authors with similar research together and detect possible collaborations. Our aim is to implement a recommendation system for a target author who searches for collaboration colleagues. The research question is: 1) Can we propose a relevant author cluster for a target scientist? Furthermore we try to apply user data from the social bookmarking system CiteULike. The second research question is: 2) Is this user-based data also relevant for our target scientist and does it recommend different results? Our first outcomes of this work in progress are evaluated by our target authors. Copyright notice continues right here
Evaluation of an online-based self-help program for patients with panic disorder - a randomized controlled trial
No full textObjectives: The present study evaluated the effectiveness of a minimally-guided online self-help intervention for panic disorder with or without agoraphobia. As our primary hypotheses, we expected the intervention to improve both panic symptoms and well-being.
Methods: German-speaking patients (N = 156) between 18 and 65 with internet access and a diagnosis of panic disorder or agoraphobia with panic disorder were recruited for this randomized controlled trial. The intervention group (N = 84) received access to a 12-week online self-help program. The waitlist control group (N = 72) received no intervention during the study period but was offered the prospect of using the program after 12 weeks.
Results: Changes in PAS revealed a significant effect in favor of the intervention group (t (df = 110.1) = -2.22, padj = .027) with a small to moderate effect size (d = -0.37, 95%-CI: -0.70; -0.04). No significant effect was found for the second primary outcome WHO-5 (t (df = 149.8) = 1.35, padj = .088) or the secondary outcomes functioning, mental health literacy, working ability and healthcare use).
Conclusions: The presented online intervention can help reduce the core symptomatology of panic disorder with or without agoraphobia. Diminished effects may be due to higher illness burden in the intervention group and possibly the COVID pandemic which caused unique challenges to patients suffering from panic disorder. Regarding well-being and the secondary outcomes, superiority towards the control group was not established. Therefore, further research and intervention adaptations may be warranted to improve these outcomes
Evaluation of an online-based self-help program for patients with generalized anxiety disorder - a randomized controlled trial
No full textObjectives: This study aimed to evaluate the effects of an online self-help intervention for generalized anxiety disorder (GAD). Our primary outcomes were reductions in generalized anxiety symptoms, measured using the GAD-7 (Spitzer et al., 2006), and improvements in well-being based on the WHO-5 (Topp et al., 2015).
Methods: A total of 156 German-speaking patients aged 18 to 65 with a diagnosis of GAD and internet access were included in this randomized controlled trial. The intervention group (N = 78) received access to a 12-week online self-help program, while the waitlist control group (N = 78) received access only after the 12-week waiting period.
Results: The intervention group showed a significant improvement in generalized anxiety symptoms compared to the control group (t(df=123.73) = -4.52, p < .001) with a medium to large effect size (d = -0.88, 95%-CI: -1.26; -0.50). Additionally, the intervention group demonstrated a significant increase in quality of life compared to the control group (t(df=87,86) = 3.48, p < .001), with a moderate to large effect size (d = 0.62, 95% CI: 0.27; 0.98). However, no significant effects were observed for secondary outcomes of functional impairments, work productivity, mental health literacy, and healthcare demands. For exploratory outcomes, improvement was found for anxiety and worry symptoms.
Conclusions: These findings suggest that an online-based self-help intervention effectively reduces core GAD symptoms and improves overall quality of life. Future research should explore the long-term effects of this intervention and investigate potential mechanisms underlying its effectiveness
Evaluation of an online-based self-help program for patients with generalized anxiety disorder - A randomized controlled trial
No full textObjectives: This study aimed to evaluate the effects of an online self-help intervention for generalized anxiety disorder (GAD). Our primary outcomes were generalized anxiety symptoms, measured using the Generalized Anxiety Disorder – 7 (GAD-7; Spitzer et al., 2006), and wellbeing based on the World Health Organization Wellbeing Index - 5 (WHO-5; Topp et al., 2015).
Methods: A total of 156 German-speaking patients aged 18 to 65 with a diagnosis of GAD and internet access were included in this randomized controlled trial. The intervention group (N = 78) received access to a 12-week online self-help program, while the waitlist control group (N = 78) received access after the 12-week waiting period.
Results: The intervention group showed a significant improvement in generalized anxiety symptoms compared to the control group (t(df = 123.73) = 4.52, p < .001) with a large effect size (d = 0.88, 95 %-CI: 0.50; 1.26). Additionally, the intervention group demonstrated a significant increase in wellbeing compared to the control group (t(df = 87,86) = 3.48, p < .001), with a moderate effect size (d = 0.62, 95 % CI: 0.27; 0.98). However, no significant effects were observed for secondary outcomes of functional impairments, work productivity, mental health literacy, and healthcare demands. For exploratory outcomes, improvement was found for anxiety and worry symptoms.
Conclusions: These findings suggest that an online-based self-help intervention effectively reduces GAD symptoms and improves overall wellbeing. Future research should explore the long-term effects of this intervention and investigate potential mechanisms underlying its efficacy. Public health implications Online-based self-help programs provide a promising treatment option for individuals with GAD who face barriers to traditional face-to-face therapy
Phase Locking the Spin Precession in a Storage Ring
No full textThis Letter reports the successful use of feedback from a spin polarization measurement to the revolution frequency of a 0.97 GeV/c bunched and polarized deuteron beam in the Cooler Synchrotron (COSY) storage ring in order to control both the precession rate (≈121 kHz) and the phase of the horizontal polarization component. Real time synchronization with a radio frequency (rf) solenoid made possible the rotation of the polarization out of the horizontal plane, yielding a demonstration of the feedback method to manipulate the polarization. In particular, the rotation rate shows a sinusoidal function of the horizontal polarization phase (relative to the rf solenoid), which was controlled to within a 1 standard deviation range of σ=0.21 rad. The minimum possible adjustment was 3.7 mHz out of a revolution frequency of 753 kHz, which changes the precession rate by 26 mrad/s. Such a capability meets a requirement for the use of storage rings to look for an intrinsic electric dipole moment of charged particles
Feasibility Study for an EDM Storage Ring
No full textInternational audienceThis project exploits charged particles confined as a storage ring beam (proton, deuteron, possibly He) to search for an intrinsic electric dipole moment (EDM, ) aligned along the particle spin axis. Statistical sensitivities can approach ~ecm. The challenge will be to reduce systematic errors to similar levels. The ring will be adjusted to preserve the spin polarization, initially parallel to the particle velocity, for times in excess of 15 minutes. Large radial electric fields, acting through the EDM, will rotate the polarization (). The slow rise in the vertical polarization component, detected through scattering from a target, signals the EDM. The project strategy is outlined. It foresees a step-wise plan, starting with ongoing COSY activities that demonstrate technical feasibility. Achievements to date include reduced polarization measurement errors, long horizontal-plane polarization lifetimes, and control of the polarization direction through feedback from the scattering measurements. The project continues with a proof-of-capability measurement (precursor experiment; first direct deuteron EDM measurement), an intermediate prototype ring (proof-of-principle; demonstrator for key technologies), and finally the high precision electric-field storage ring
