678 research outputs found
Feitenvaststelling en belangenbehartiging bij de compensatie van slachtoffers van geweld. Een studie naar het bewijsrecht als rechtspolitiek middel
Effective Protection of Fundamental Rights in a pluralist worl
Theoretical study of dark resonances in micro-metric thin cells
We investigate theoretically dark resonance spectroscopy for a dilute atomic
vapor confined in a thin (micro-metric) cell. We identify the physical
parameters characterizing the spectra and study their influence. We focus on a
Hanle-type situation, with an optical irradiation under normal incidence and
resonant with the atomic transition. The dark resonance spectrum is predicted
to combine broad wings with a sharp maximum at line-center, that can be singled
out when detecting a derivative of the dark resonance spectrum. This narrow
signal derivative, shown to broaden only sub-linearly with the cell length, is
a signature of the contribution of atoms slow enough to fly between the cell
windows in a time as long as the characteristic ground state optical pumping
time. We suggest that this dark resonance spectroscopy in micro-metric thin
cells could be a suitable tool for probing the effective velocity distribution
in the thin cell arising from the atomic desorption processes, and notably to
identify the limiting factors affecting desorption under a grazing incidence.Comment: 12 pages, 11 figures theoretical articl
Influence of Spatial Correlations on the Lasing Threshold of Random Lasers
The lasing threshold of a random laser is computed numerically from a generic
model. It is shown that spatial correlations of the disorder in the medium
(i.e., dielectric constant) lead to an increase of the decay rates of the
eigenmodes and of the lasing threshold. This is in conflict with predictions
that such correlations should lower the threshold. While all results are
derived for photonic systems, the computed decay rate distributions also apply
to electronic systems
Game-based meditation therapy to improve posttraumatic stress and neurobiological stress systems in traumatized adolescents:Protocol for a randomized controlled trial
Background: Many adolescents in residential care have been exposed to prolonged traumatic experiences such as violence, neglect, or abuse. Consequently, they suffer from posttraumatic stress. This not only negatively affects psychological and behavioral outcomes (eg, increased anxiety, depression, and aggression) but also has adverse effects on physiological outcomes, in particular on their neurobiological stress systems. Although current evidence-based treatment options are effective, they have their limitations. An alternative to traditional trauma treatment is meditation-based treatment that focuses on stress regulation and relaxation. Muse is a game-based meditation intervention that makes use of adolescentsβ intrinsic motivation. The neurofeedback element reinforces relaxation abilities. Objective: This paper describes the protocol for a randomized controlled trial in which the goal is to examine the effectiveness of Muse (InteraXon Inc) in reducing posttraumatic stress and normalizing neurobiological stress systems in a sample of traumatized adolescents in residential care. Methods: This will be a multicenter, multi-informant, and multimethod randomized controlled trial. Participants will be adolescents (N=80), aged 10 to 18 years, with clinical levels of posttraumatic symptoms, who are randomized to receive either the Muse therapy sessions and treatment as usual (intervention) or treatment as usual alone (control). Data will be collected at 3 measurement instances: pretest (T1), posttest (T2), and at 2-month follow-up. Primary outcomes will be posttraumatic symptoms (self-report and mentor report) and stress (self-report) at posttest. Secondary outcomes will be neurobiological stress parameters under both resting and acute stress conditions, and anxiety, depression, and aggression at posttest. Secondary outcomes also include all measures at 2-month follow-up: posttraumatic symptoms, stress, anxiety, depression aggression, and neurobiological resting parameters. Results: The medical-ethical committee Arnhem-Nijmegen (NL58674.091.16) approved the trial on November 15, 2017. The study was registered on December 2, 2017. Participant enrollment started in January 2018, and the results of the study are expected to be published in spring or summer 2021. Conclusions: Study results will demonstrate whether game-based meditation therapy improves posttraumatic stress and neurobiological stress systems, and whether it is more effective than treatment as usual alone for traumatized adolescents
ΠΠ΅ΡΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠΎΠ΄Ρ ΠΎΠ΄Ρ ΠΊ ΠΎΡΠ΅Π½ΠΊΠ΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΈΠ½Π½ΠΎΠ²Π°ΡΠΈΠΎΠ½Π½ΡΡ ΡΡΡΠ°ΡΠ΅Π³ΠΈΠΉ
Π¦Π΅Π»ΡΡ Π΄Π°Π½Π½ΠΎΠΉ ΡΡΠ°ΡΡΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½ΠΈΠ΅ ΠΌΠ΅ΡΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ΠΎΠ² ΠΊ ΠΎΡΠ΅Π½ΠΊΠ΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΈΠ½Π½ΠΎΠ²Π°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΡΡΠ°ΡΠ΅Π³ΠΈΠΉ
The Importance of Neighborhood Social Cohesion and Social Capital for the Well Being of Older Adults in the Community
We aimed to investigate
whether social capital (obtaining support through
indirect ties such as from neighbors) and social cohesion
(interdependencies among neighbors) within
neighborhoods positively affect the well being of
older adults. Design and Methods: This crosssectional
study included 945 of 1,440 (66% response
rate) independently living older adults (aged !70
years) in Rotterdam. We fitted a hierarchical random
effects model to account for the hierarchical structure
of the study design: 945 older adults (Level 1) nested
in 72 neighborhoods (Level 2). Results: Univariate
analyses showed that being born in the Netherlands,
house ownership, education, income, social capital
of individuals, neighborhood security, neighborhood
services, neighborhood social capital, and neighborhood
social cohesion were significantly related to the
well being of older adults. Multilevel analyses showed
that social capital of individuals, neighborhood services,
neighborhood social capital, and neighborhood
social cohesion predicted the well being of
older adults. Single and poor older adults reported
lower well being than did better off and married
older adults. However, the effects of marital status
and income were mediated by neighborhood services,
social capital, and social cohesion. Neighborhood
services, social capital, and social cohesion
may act as buffer against the adverse effects of being
single and poor on the well being of older
adults. Implications: The results of this study support
the importance of social capital of individuals,
as well as social capital within the neighborhood and social cohesion within the neighborhood for well
being of older adults. The well being of older adults
may also be enhanced through the improvement of
quality of neighborhood services
Π€ΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈ ΠΏΡΠΎΠ΄Π²ΠΈΠΆΠ΅Π½ΠΈΠ΅ ΠΊΡΠ΅Π΄ΠΈΡΠ½ΡΡ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΈ ΡΡΠ»ΡΠ³
ΠΡΠ΅Π΄ΠΈΡΠ½Π°Ρ ΡΡΠ»ΡΠ³Π° - ΠΎΠ΄Π½Π° ΠΈΠ· ΡΠΎΡΡΠ°Π²Π»ΡΡΡΠΈΡ
ΠΊΡΠ΅Π΄ΠΈΡΠ½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΈ Π±Π°Π½ΠΊΠ°. Π‘ΡΡΠ΅ΠΌΠ»Π΅Π½ΠΈΠ΅ ΠΊ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠΌΡ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΠΏΡΠΈΠ±ΡΠ»ΠΈ ΠΎΡ Π΅Π΅ ΠΏΡΠ΅Π΄ΠΎΡΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΏΠΎΡΠΎΠΊΠ° ΠΊΠ»ΠΈΠ΅Π½ΡΠΎΠ² ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ° (ΡΠΎΠ²ΠΎΠΊΡΠΏΠ½ΠΎΡΡΠΈ) ΡΡΠ»ΡΠ³, Π° ΠΈΠΌΠ΅Π½Π½ΠΎ - ΠΊΡΠ΅Π΄ΠΈΡΠ½ΠΎΠΌΡ ΠΏΡΠΎΠ΄ΡΠΊΡΡ. ΠΠ·ΡΡΠΈΠ² ΠΈΠ½ΡΠ΅ΡΠ΅ΡΡ Ρ
ΠΎΠ·ΡΠΉΡΡΠ²ΡΡΡΠΈΡ
ΡΡΠ±ΡΠ΅ΠΊΡΠΎΠ², ΠΈΡ
ΠΏΠΎΡΡΠ΅Π±Π½ΠΎΡΡΠΈ, Π±Π°Π½ΠΊ ΠΌΠΎΠΆΠ΅Ρ Π±ΠΎΠ»Π΅Π΅ ΡΠΎΡΠ½ΠΎ ΡΠ°Π·ΡΠ°Π±Π°ΡΡΠ²Π°ΡΡ ΠΏΡΠΈΠΎΡΠΈΡΠ΅ΡΡ ΠΊΡΠ΅Π΄ΠΈΡΠ½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΈ Π²ΠΎ Π²Π·Π°ΠΈΠΌΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡΡ
Ρ ΡΠ΅Π°Π»ΡΠ½ΡΠΌ ΡΠ΅ΠΊΡΠΎΡΠΎΠΌ ΡΠΊΠΎΠ½ΠΎΠΌΠΈΠΊΠΈ. ΠΠ±ΡΠ°ΡΠ½Π°Ρ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ ΡΡΠΎΠ³ΠΎ ΡΠ°ΠΊΡΠΎΡΠ° - ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΠΊΡΠ΅Π΄ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ΄ΡΠΊΡΠ° ΠΈ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ ΠΏΡΠΎΠ΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ ΠΊΡΠ΅Π΄ΠΈΡΠ½ΡΡ
ΡΡΠ»ΡΠ³, ΠΊΠΎΡΠΎΡΠ°Ρ ΠΏΡΠΈΠ·Π²Π°Π½Π° ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΡΡ Π°Π½Π°Π»ΠΈΠ·, Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΡ ΡΠ΅ΠΊΡΡΠ΅ΠΉ ΡΠΈΡΡΠ°ΡΠΈΠΈ, ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΠ΅ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ Π±Π°Π½ΠΊΠ°ΠΌΠΈ, Π½Π°ΡΠ΅Π»ΠΈΡΡ Π²Π·Π°ΠΈΠΌΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Π±Π°Π½ΠΊΠ° ΠΈ Π·Π°Π΅ΠΌΡΠΈΠΊΠ° Π½Π° Π΄ΠΎΠ»Π³ΠΎΡΡΠΎΡΠ½ΡΡ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Ρ
Validity of the Empatica E4 wristband to measure heart rate variability (HRV) parameters:A comparison to electrocardiography (ECG)
Wearable monitoring devices are an innovative way to measure heart rate (HR) and heart rate variability (HRV), however, there is still debate about the validity of these wearables. This study aimed to validate the accuracy and predictive value of the Empatica E4 wristband against the VU University Ambulatory Monitoring System (VU-AMS) in a clinical population of traumatized adolescents in residential care. A sample of 345 recordings of both the Empatica E4 wristband and the VU-AMS was derived from a feasibility study that included fifteen participants. They wore both devices during two experimental testing and twelve intervention sessions. We used correlations, cross-correlations, Mann-Whitney tests, difference factors, Bland-Altman plots, and Limits of Agreement to evaluate differences in outcomes between devices. Significant correlations were found between Empatica E4 and VU-AMS recordings for HR, SDNN, RMSSD, and HF recordings. There was a significant difference between the devices for all parameters but HR, although effect sizes were small for SDNN, LF, and HF. For all parameters but RMSSD, testing outcomes of the two devices led to the same conclusions regarding significance. The Empatica E4 wristband provides a new opportunity to measure HRV in an unobtrusive way. Results of this study indicate the potential of the Empatica E4 as a practical and valid tool for research on HR and HRV under non-movement conditions. While more research needs to be conducted, this study could be considered as a first step to support the use of HRV recordings provided by wearables
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