Previous research found increased brain responses of men with sexual interest in children (i.e., pedophiles) not only to pictures of naked children but also to pictures of child faces. This opens the possibly that pedophilia is linked (in addition to or instead of an aberrant sexual system) to an over-active nurturing system. To test this hypothesis we exposed pedophiles and healthy controls to pictures of infant and adult animals during functional magnetic resonance imaging of the brain. By using pictures of infant animals (instead of human infants), we aimed to elicit nurturing processing without triggering sexual processing. We hypothesized that elevated brain responses to nurturing stimuli will be found – in addition to other brain areas – in the anterior insula of pedophiles because this area was repeatedly found to be activated when adults see pictures of babies. Behavioral ratings confirmed that pictures of infant or adult animals were not perceived as sexually arousing neither by the pedophilic participants nor by the heathy controls. Statistical analysis was applied to the whole brain as well as to the anterior insula as region of interest. Only in pedophiles did infants relative to adult animals increase brain activity in the anterior insula, supplementary motor cortex, and dorsolateral prefrontal areas. Within-group analysis revealed an increased brain response to infant animals in the left anterior insular cortex of the pedophilic participants. Currently, pedophilia is considered the consequence of disturbed sexual or executive brain processing, but details are far from known. The present findings raise the question whether there is also an over-responsive nurturing system in pedophilia.
This work presents the development of an X-band twisted metal-insert bandpass filter as a monolithic 3D-printed structure. The component serves as a compact solution for the incorporation of a fourth-order bandpass filter response while simultaneously rotating the polarization by 90 degrees as a twist-component. The structure is fabricated using lowcost stereolithography 3D-printing and metallized using a simple copper electroplating method. The measured results exhibit an unloaded Q-factor of approximately 2600 and have an insertion loss better then 0.44 dB throughout the passband, ultimately demonstrating a unique use of the metal-insert filter technique and providing a novel presentation on integrated monolithic structures.
This case report describes an 82-year-old patient who was treated in a gerontological psychiatric ward due to a multifactorial gait disorder with falls. The main component of the gait disorder was depression, which was accompanied by a pronounced fear of falling. Other factors were polyneuropathy, gonarthrosis and an exercise deficit after previous inactivity. An important part of the multimodal treatment was electroconvulsive therapy (ECT). A total of nine sessions of ECT in right unilateral stimulation were conducted. The treatment resulted in a significant improvement of the depression and the gait disorder, which was impressively reflected in the geriatric assessment. The presented case shows that depression and fear of falling should not be underestimated as (main) components of a gait disorder. Here, a multimodal treatment including treatment of the depression by ECT was successful. Supplementary Information The online version of this article (10.1007/s00391-022-02135-2) contains supplementary material, which is available to authorized users.
In this paper, the impact of E-plane and H-plane cuts on filter performance of 3D-printed waveguide filters manufactured with fused deposition modeling (FDM) is examined. The employed manufacturing procedure consists of FDM 3Dprinting and the subsequent electroplating process. A number of samples in both configurations are fabricated and surveyed. The measurement results are quantified and a comparison is conducted. Finally, the differing filter behaviors are discussed.
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