90 research outputs found
Interiors and furnishings designed by Miguel Fisac for the CSIC
[ES] Conocida y fotografiada parte de la producción de Miguel Fisac relacionada con el mobiliario para el CSIC, no había sido estudiada hasta ahora en su conjunto. Se recogen cronológicamente los diferentes estilos utilizados para los distintos espacios, las motivaciones expresadas por el propio arquitecto, su estado actual y las consideraciones que puedan permitir su inclusión en el Patrimonio Artístico del CSIC y la declaración de alguna de ellas, como la “librería científica” como Bien de Interés Cultural.[EN] Although Miguel Fisac’s designs for the furnishings in the Spanish Council for Scientific Research are well known and widely photographed, they had not, to date, been studied as a whole. This chronological review of the styles used to create different spatial effects describes both the author’s motivations as explained by the architect himself and the present condition of the furnishings. Considerations in support of their inclusion in the Council’s Artistic Estate are discussed, advocating —in the case of the “Scientific Library”— the award of Asset of Cultural Interest status.Peer reviewe
Eye Movement Desensitization and Reprocessing (EMDR) Practitioners’ Beliefs About Memory
Eye movement desensitization and reprocessing (EMDR) is a widely used treatment for posttraumatic stress disorder. The idea behind EMDR is that lateral eye movements may mitigate the emotional impact of traumatic memories. Given the focus on changing patients’ memories, it is important that EMDR practitioners have detailed knowledge about human memory. We explored beliefs and ideas about memory in samples of EMDR practitioners (Study 1: n = 12; Study 2: n = 41), students (Study 1: n =35; Study 2: n = 24), and researchers (Study 2: n = 30). All groups seemed to be aware of the fallibility of memory. However, a majority of the surveyed EMDR practitioners (70–90%), students (around 90%), and researchers (66.7%) endorsed the controversial idea of repressed memories. Skepticism and endorsement of problematic ideas about memory-related topics may coexist within the same group. In clinical settings, this might be problematic, because a strong belief in repressed memories might lead therapists to suggestively seek for such memories in patient
Distributed delays stabilize neural feedback systems
We consider the effect of distributed delays in neural feedback systems. The
avian optic tectum is reciprocally connected with the nucleus isthmi.
Extracellular stimulation combined with intracellular recordings reveal a range
of signal delays from 4 to 9 ms between isthmotectal elements. This observation
together with prior mathematical analysis concerning the influence of a delay
distribution on system dynamics raises the question whether a broad delay
distribution can impact the dynamics of neural feedback loops. For a system of
reciprocally connected model neurons, we found that distributed delays enhance
system stability in the following sense. With increased distribution of delays,
the system converges faster to a fixed point and converges slower toward a
limit cycle. Further, the introduction of distributed delays leads to an
increased range of the average delay value for which the system's equilibrium
point is stable. The enhancement of stability with increasing delay
distribution is caused by the introduction of smaller delays rather than the
distribution per se.Comment: 7 pages, 4 figure
Amnesia, flashbacks, nightmares, and dissociation in aging concentration camp survivors.
Abstract The current study examined to what extent war memories of Dutch survivors of Japanese/Indonesian concentration camps display characteristics that are often believed to be typical for traumatic memories. Twenty-nine survivors were interviewed about amnesia, flashbacks, nightmares and the sensory quality of their most upsetting war memories. In addition, they completed self-report scales measuring post-traumatic stress symptoms and dissociation. In contrast to prevailing notions, amnesia, flashbacks and nightmares were not typical for this sample. Neither were traumatic memories characterized by a particularly strong sensory loading. Post-traumatic stress symptoms were not related to dissociative experiences. At least for this group of aging survivors, it appears that the pathogenic potential of traumatic memories has more to do with their extremely aversive content than with a qualitatively different type of organization of these memories
Removal of temporary pacemaker after cardiac surgery in infants: A harmless procedure?
External pacemakers (PM) via temporary epicardial leads are routinely applied to infants and children during heart surgery, which usually, after an uneventful post surgical course, can be removed without complications. We report about two infants with complex congenital heart defects after cardiac surgery (arterial switch and Mustard operation for Transposition of the great arteries). Intraoperative these patients received temporary epicardial PM wires. Thirteen and 18 days post surgery, respectively, the PM wires were removed under electrocardiogram (ECG) monitoring. The patients showed acute ECG changes in terms of significant ST elevation during and after removing their pacing wires. Clinically, patients were stable and subsequent echocardiographic examination showed no evidence of myocardial dysfunction or pericardial effusion. In the course of time, patients showed no signs of arrhythmia or abnormal ECG changes. The decision to place temporary pacing wires during the cardiac surgery in patients with congenital heart defects should be considered carefully and their removal should occur under ECG monitoring as soon as the situation of the patient allows. It should be taken into consideration that a complication like this case may be related to delayed removal of temporary PM’s leads. © 2012 - IOS Press and the authors
Eye movement desensitization and reprocessing (EMDR) Practitioners’ Beliefs about Memory
Eye movement desensitization and reprocessing (EMDR) is a widely used treatment for posttraumatic stress disorder. The idea behind EMDR is that lateral eye movements may mitigate the emotional impact of traumatic memories. Given the focus on changing patients' memories, it is important that EMDR practitioners have detailed knowledge about human memory. We explored beliefs and ideas about memory in samples of EMDR practitioners (Study 1: n = 12; Study 2: n = 41), students (Study 1: n = 35; Study 2: n = 24), and researchers (Study 2: n = 30). All groups seemed to be aware of the fallibility of memory. However, a majority of the surveyed EMDR practitioners (70-90%), students (around 90%), and researchers (66.7%) endorsed the controversial idea of repressed memories. Skepticism and endorsement of problematic ideas about memory-related topics may coexist within the same group. In clinical settings, this might be problematic, because a strong belief in repressed memories might lead therapists to suggestively seek for such memories in patients
Eccentric, nonspinning, inspiral, Gaussian-process merger approximant for the detection and characterization of eccentric binary black hole mergers
We present , a time domain, inspiral-merger-ringdown
waveform model that describes non-spinning binary black holes systems that
evolve on moderately eccentric orbits. The inspiral evolution is described
using a consistent combination of post-Newtonian theory, self-force and black
hole perturbation theory. Assuming eccentric binaries that circularize prior to
coalescence, we smoothly match the eccentric inspiral with a stand-alone,
quasi-circular merger, which is constructed using machine learning algorithms
that are trained with quasi-circular numerical relativity waveforms. We show
that reproduces with excellent accuracy the dynamics of
quasi-circular compact binaries. We validate using a set of
eccentric numerical relativity waveforms, which
describe eccentric binary black hole mergers with mass-ratios between , and eccentricities ten orbits before merger. We
use this model to explore in detail the physics that can be extracted with
moderately eccentric, non-spinning binary black hole mergers. We use
to show that GW150914, GW151226, GW170104, GW170814 and
GW170608 can be effectively recovered with spinning, quasi-circular templates
if the eccentricity of these events at a gravitational wave frequency of 10Hz
satisfies , respectively.
We show that if these systems have eccentricities at a
gravitational wave frequency of 10Hz, they can be misclassified as
quasi-circular binaries due to parameter space degeneracies between
eccentricity and spin corrections. Using our catalog of eccentric numerical
relativity simulations, we discuss the importance of including higher-order
waveform multipoles in gravitational wave searches of eccentric binary black
hole mergers.Comment: 19 pages, 10 figures, 1 Appendix. v2: we use numerical relativity
simulations to quantify the importance of including higher-order waveform
multipoles for the detection of eccentric binary black hole mergers,
references added. Accepted to Phys. Rev.
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