609 research outputs found
Institut für Tiergesundheit : Der tägliche Kampf gegen die Vogelgrippe: Thomas Mettenleiter im Gespräch mit Anke Schaefer
No full textDas Bundesforschungsinstitut für Tiergesundheit hat derzeit vor allem mit der Vogelgrippe zu tun. Der Erreger, sagt Institutspräsident Thomas Mettenleiter, ist hochaggressiv und unterscheidet sich deutlich von dem vor zwei Jahren
Ten Emotions Examined Through Videoclips: Boredom, Revulsion, Sadness, Pain, Fear, Haste, Aggression, Geborgenheit (something like Comfort), Joy, Equanimity
No full textArt and science often face each other as antipodes in the academic world. They differ fundamentally in their methodical approach. Artistic work aims at the precise analysis and understanding of subjective thoughts and feelings. In contrast, science is theory-driven and focused on objective findings and generalizable results. This archive was created to bring both into discourse.
It includes:
- A description of a an artistic-research process that explored the understanding of ten emotions (Zeißig, A. (2018). The Creative Act as a Mode of Research: Ten Emotions - Ten Films. Weinböhla: edition neuhaus. http://dx.doi.org/10.23668/psycharchives.4852).
- A database of ten developed videos exploring the emotions of boredom, revulsion, sadness, pain, fear, haste, aggression, comfort, joy and equanimity (Zeißig, A. (2018). Database of Ten Emotions - Ten Films. Weinböhla: edition neuhaus. http://dx.doi.org/10.23668/psycharchives.4851).
- The result of a first empirical study to investigate the induction of intended emotions (Zeißig, A. (2019-07-17). Ten Emotions - Ten Films [Poster presentation]. International Society for Research on Emotion Conference, University of Amsterdam. PsychArchives. http://dx.doi.org/10.23668/psycharchives.4853).
The project is looking for interested researchers and collaborations to further test the videos. Since the videos are language-free and free of culture or time specific elements, narration or dramaturgy it would be interesting to cooperate transnationally and international to discuss the development of culture-free emotion induction methods.This is a secondary publication of: Zeißig, A. (2018). The Creative Act as a Mode of Research: Ten Emotion - Ten Films. Weinböhla: edition neuhaus. (Book with DVD). More information on the author can be found under: http://www.ankezeissig.de/ and https://www.b-tu.de/fg-paedagogische-psychologie/team/anke-zeissig."Boredom: Video “Study IV”;
Revulsion: Video “Pond”;
Sadness: Video “Ocean Rain”;
Pain: Video “Paradise Desert”;
Fear: Video “Through and Through”;
Haste: Video “RushHush”;
Aggression: Video “19992000”;
Geborgenheit (something like Comfort): Video “RedRed”;
Joy: Video “Bob”;
Equanimity: Video “Stairway Music”reviewe
Reproducibility and stability of neuromagnetic source imaging in primary somatosensory cortex
No full textThe present study investigated the test-retest reliability of magnetoencephalography (MEG) source localization of somatosensory evoked fields (SEFs) over an extended time period. Five healthy subjects were stimulated pneumatically at the first and fifth digit in two sessions spaced several months apart. At each location 400 stimuli were presented. The validation of the results was performed by overlay of the dipole localizations into the individual anatomic structure of the subjects'' cortex by the use of magnetic resonance images (MRIs). The source localizations of the SEF component were found to be highly reproducible. The mean standard deviation of the dipole locations of the first digit was 1.55 mm in the x-, 1.55 mm in the y- and 3.49 mm in the z-direction. The mean standard deviation of the fifth digit was 3.69 mm in the x-, 4.27 mm in the y- and 6.60 mm in the z-direction. These results support the use of MEG recordings combined with MRI as an adequate method to define the organization of the human primary somatosensory cortex and provide a useful approach to the rapid detection of neuroplasticity
A meta-analysis of structural brain abnormalities in PTSD
No full textThis series of meta-analyses examined structural abnormalities of the hippocampus and other brain regions in persons with PTSD compared to trauma-exposed and non-exposed control groups. The findings were significantly smaller hippocampal volumes in persons with PTSD compared to controls with and without trauma exposure, but group differences were moderated by MRI methodology, PTSD severity, medication, age and gender. Trauma-exposed persons without PTSD also showed significantly smaller bilateral hippocampal compared to non-exposed controls. Meta-analyses also found significantly smaller left amygdala volumes in adults with PTSD compared to both healthy and trauma-exposed controls, and significantly smaller anterior cingulate cortex compared to trauma-exposed controls. Pediatric samples with PTSD exhibited significantly smaller corpus callosum and frontal lobe volumes compared to controls, but there were no group differences in hippocampal volume. The overall findings suggested a dimensional, developmental psychopathology systems model in which: (1) hippocampal volumetric differences covary with PTSD severity; (2) hippocampal volumetric differences do not become apparent until adulthood; and (3) PTSD is associated with abnormalities in multiple frontal–limbic system structures
The evolution of the innovation network and the technological system in a standard developing organization. The example of cellular telecommunications
No full textStandard developing organizations (SDOs) are voluntary inter-organizational collaborations with the goal to develop jointly compatibility standards for complex modular technological systems. This dissertation examines the evolution of the innovation network and technological system in a SDO with the perspective of complementing micro and macro level. The dissertation is rooted in the multidisciplinary complex system theory and draws on a broad range of literature from management, sociology, biology and physics with the common theme of bipartite network analysis. The innovation network is conceptualized as a bipartite network with ties between organizations and innovations to which they contribute. I show that technical capital, resources in the SDO and their match between organization and innovation, rather than social capital, network position, drive the tie formation in the innovation network. To answer the question of emerging order in an innovation ecology without formal hierarchy I borrow from the literature of ecological mutualistic networks. I show that a nested order emerges based on a parsimonious process of matching resources, that leads to a rather stable system over more than ten years. The evolution of the technological system in the SDO environment departs from the established life cycle model and is best described by a life spiral model with continuously increasing system performance rather than punctuated equilibria. The key distinction to market-based technological evolution is the coordinated and designed development process within the SDO, that allows to introduce new services and change core parts of the system based on architectural knowledge. As a consequence the development process follows a gradual change model with changing tempo. Furthermore the evolution is characterized by simultaneity of innovation types that identifies the SDO as ambidextrous organization with separation of exploitation and exploration on project level. The research context is Third Generation Partnership Project (3GPP) in the cellular telecommunications industry with data from 1992 to 2011.Ph. D.Includes bibliographical referencesIncludes vitaby Anke Piepenbrin
Correction to: Exponential stability of impulsive stochastic genetic regulatory networks with time-varying delays and reaction-diffusion
No full textAbstract In the publication of this article (Cao et al. in Adv. Differ. Equ. 2017:307, 2017), there was an error that the author Anke Meyer-Baese was missing. Anke Meyer-Baese contributed towards the methodological design, study concept, the biological interpretation of the parameters of the systems and the writing of the system’s description. Omission is due to an oversight. This has now been included in this erratum
External interventions and the duration of civil wars
No full textThe authors combine an empirical model of external intervention, with a theoretical model of civil war duration. Their empirical model of intervention allows them to analyze civil war duration, using"expected"rather than"actual"external intervention as an explanatory variable in the duration model. Unlike previous studies, they find that external intervention is positively associated with the duration of civil war. They distinguish partial third-party interventions that extend the length of war, from multilateral"peace"operations, which have a mandate to restore peace without taking sides - and which typically take place at war's end, or at least when both sides have agreed to a cease-fire. In a future paper, the authors will examine whether partial third-party interventions - whatever their effect on a war's duration - increase the risk of war's recurrence. If that proves true, then even if interventions reduce the length of civil war, they may do so at the cost of further destabilizing the political system, and sowing the seeds of future rebellion.Children and Youth,Peace&Peacekeeping,Post Conflict Reconstruction,Post Conflict Reconstruction,International Affairs,Post Conflict Reconstruction,Social Conflict and Violence,Peace&Peacekeeping,Post Conflict Reconstruction,International Affairs
Anderson, Bernard (Death, 1890-01-15)
No full textAddress: 447 Locust St.Age at death: 19 yrs.Pg 8/1890/325/MW S/Germany/Dr. Edw. Schaefer/C.M. Epply/Walnut HillsOriginal record filed in drawer labeled'ANDERSON-ANKE'
Anderson, Annie (Death, 1890-09-29)
No full textAddress: 447 Locust St.Age at death: 216 yrs.Pg 117/1890/6/FW S/Germany/Dr. Edw. Schaefer/Epply/Walnut HillsOriginal record filed in drawer labeled'ANDERSON-ANKE'
Odd and even Maass cusp forms for Hecke triangle groups, and the billiard flow
No full textBy a transfer operator approach to Maass cusp forms and the Selberg zeta function for cofinite Hecke triangle groups, Moller and the present author found a factorization of the Selberg zeta function into a product of Fredholm determinants of transfer-operator-like families: Z(s) = det(1 - L-s(+)) det(1 - L-s(-)). In this article we show that the operator families L-s(+/-) arise as families of transfer operators for the triangle groups underlying the Hecke triangle groups, and that for s is an element of C, Res = 1/2, the operator L-s(+) (respectively L-s(-)) has a 1-eigenfunction if and only if there exists an even (respectively odd) Maass cusp form with eigenvalue s(1 - s). For non-arithmetic Hecke triangle groups, this result provides a new formulation of the Phillips-Sarnak conjecture on non-existence of even Maass cusp forms.Volkswagen Foundatio
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