TY - JOUR A1 - Trinh, Christopher Q. A1 - Ellis, Simon C. A1 - Bland-Hawthorn, Joss A1 - Lawrence, Jon S. A1 - Horton, Anthony J. A1 - Leon-Saval, Sergio G. A1 - Shortridge, Keith A1 - Bryant, Julia A1 - Case, Scott A1 - Colless, Matthew A1 - Couch, Warrick A1 - Freeman, Kenneth A1 - Löhmannsröben, Hans-Gerd A1 - Gers, Luke A1 - Glazebrook, Karl A1 - Haynes, Roger A1 - Lee, Steve A1 - O'Byrne, John A1 - Miziarski, Stan A1 - Roth, Martin M. A1 - Schmidt, Brian A1 - Tinney, Christopher G. A1 - Zheng, Jessica T1 - Gnosis - the first instrument to use fiber bragg gratings for OH suppression JF - The astronomical journal N2 - The near-infrared is an important part of the spectrum in astronomy, especially in cosmology because the light from objects in the early universe is redshifted to these wavelengths. However, deep near-infrared observations are extremely difficult to make from ground-based telescopes due to the bright background from the atmosphere. Nearly all of this background comes from the bright and narrow emission lines of atmospheric hydroxyl (OH) molecules. The atmospheric background cannot be easily removed from data because the brightness fluctuates unpredictably on short timescales. The sensitivity of ground-based optical astronomy far exceeds that of near-infrared astronomy because of this long-standing problem. GNOSIS is a prototype astrophotonic instrument that utilizes "OH suppression fibers" consisting of fiber Bragg gratings and photonic lanterns to suppress the 103 brightest atmospheric emission doublets between 1.47 and 1.7 mu m. GNOSIS was commissioned at the 3.9 m Anglo-Australian Telescope with the IRIS2 spectrograph to demonstrate the potential of OH suppression fibers, but may be potentially used with any telescope and spectrograph combination. Unlike previous atmospheric suppression techniques GNOSIS suppresses the lines before dispersion and in a manner that depends purely on wavelength. We present the instrument design and report the results of laboratory and on-sky tests from commissioning. While these tests demonstrated high throughput (approximate to 60%) and excellent suppression of the skylines by the OH suppression fibers, surprisingly GNOSIS produced no significant reduction in the interline background and the sensitivity of GNOSIS+IRIS2 is about the same as IRIS2. It is unclear whether the lack of reduction in the interline background is due to physical sources or systematic errors as the observations are detector noise dominated. OH suppression fibers could potentially impact ground-based astronomy at the level of adaptive optics or greater. However, until a clear reduction in the interline background and the corresponding increasing in sensitivity is demonstrated optimized OH suppression fibers paired with a fiber-fed spectrograph will at least provide a real benefit at low resolving powers. KW - atmospheric effects KW - infrared: diffuse background KW - instrumentation: miscellaneous Y1 - 2013 U6 - https://doi.org/10.1088/0004-6256/145/2/51 SN - 0004-6256 VL - 145 IS - 2 PB - IOP Publ. Ltd. CY - Bristol ER - TY - JOUR A1 - Muster, Sina A1 - Riley, William J. A1 - Roth, Kurt A1 - Langer, Moritz A1 - Aleina, Fabio Cresto A1 - Koven, Charles D. A1 - Lange, Stephan A1 - Bartsch, Annett A1 - Grosse, Guido A1 - Wilson, Cathy J. A1 - Jones, Benjamin M. A1 - Boike, Julia T1 - Size distributions of arctic waterbodies reveal consistent relations in their statistical moments in space and time JF - Frontiers in Earth Science N2 - Arctic lowlands are characterized by large numbers of small waterbodies, which are known to affect surface energy budgets and the global carbon cycle. Statistical analysis of their size distributions has been hindered by the shortage of observations at sufficiently high spatial resolutions. This situation has now changed with the high-resolution (<5 m) circum-Arctic Permafrost Region Pond and Lake (PeRL) database recently becoming available. We have used this database to make the first consistent, high-resolution estimation of Arctic waterbody size distributions, with surface areas ranging from 0.0001 km(2) (100 m(2)) to 1 km(2). We found that the size distributions varied greatly across the thirty study regions investigated and that there was no single universal size distribution function (including power-law distribution functions) appropriate across all of the study regions. We did, however, find close relationships between the statistical moments (mean, variance, and skewness) of the waterbody size distributions from different study regions. Specifically, we found that the spatial variance increased linearly with mean waterbody size (R-2 = 0.97, p < 2.2e-16) and that the skewness decreased approximately hyperbolically. We have demonstrated that these relationships (1) hold across the 30 Arctic study regions covering a variety of (bio)climatic and permafrost zones, (2) hold over time in two of these study regions for which multi-decadal satellite imagery is available, and (3) can be reproduced by simulating rising water levels in a high-resolution digital elevation model. The consistent spatial and temporal relationships between the statistical moments of the waterbody size distributions underscore the dominance of topographic controls in lowland permafrost areas. These results provide motivation for further analyses of the factors involved in waterbody development and spatial distribution and for investigations into the possibility of using statistical moments to predict future hydrologic dynamics in the Arctic. KW - permafrost KW - hydrology KW - waterbodies KW - size distribution KW - thermokarst KW - statistical moments KW - ponds KW - lakes Y1 - 2019 U6 - https://doi.org/10.3389/feart.2019.00005 SN - 2296-6463 VL - 7 PB - Frontiers Research Foundation CY - Lausanne ER - TY - THES A1 - Roth, Julia T1 - Ocidental readings, decolonial practies ; a selection on gender, genre and coloniality in the Americas T2 - Inter-American Studies Y1 - 2014 SN - 978-3-86821-446-8 VL - 10 PB - Wiss. Verl. Trier; Bilingual Press CY - Trier; Tempe, AZ ER - TY - JOUR A1 - Roth-Rawald, Julia A1 - Weck, Florian T1 - Krankheitsängste bei Psychotherapeut_innen BT - eine explorative Studie zu Ängsten vor psychischen Störungen JF - Zeitschrift für klinische Psychologie und Psychotherapie N2 - Hintergrund: Krankheitsängste beziehen sich meist auf die Angst vor dem Leiden an somatischen Erkrankungen. In Einzelfallberichten wurden auch Ängste vor psychischen Störungen berichtet, jedoch bisher nicht systematisch untersucht. Psychotherapeut_innen sind ständig mit psychischen Erkrankungen konfrontiert. Fragestellung: Diese Studie untersucht, wie stark Krankheitsängste bei Psychotherapeut_innen ausgeprägt sind und welche Faktoren diese beeinflussen. Methoden: Insgesamt 239 Psychotherapeut_innen wurden per anonymer Onlinebefragung mit den Illness Attitude Scales und der Mini-Symptom-Checklist untersucht. Ergebnisse: Krankheitsängste bei Psychotherapeut_innen waren geringer ausgeprägt als in der Allgemeinbevölkerung und bei Psychologiestudierenden. Faktoren wie die allgemeine psychische Belastung und das Vorhandensein tatsächlicher Diagnosen gingen mit erhöhten Krankheitsängsten einher. Schlussfolgerungen: Krankheitsängste können sich nicht nur auf somatische Erkrankungen beziehen, sondern auch psychische Störungen betreffen. Eine stärkere Berücksichtigung psychischer Krankheitsängste und deren weitere systematische Erfassung erscheinen daher wünschenswert. N2 - Background: Illness anxiety is the fear of suffering from severe physical illnesses. Psychotherapists are constantly confronted with mental disorders. In individual case reports. anxiety related to suffering from mental disorders has also been documented but to date has not been systematically examined. Objectives: This study examines the strength of illness anxieties in psychotherapists and their influencing factors. Methods: We examined 239 psychotherapists using the Illness Attitude Scales and the Mini-Symptom-Checklist. Results: Illness anxieties in psychotherapists were significantly lower than those in the general population and psychology students. Variables like general mental stress and the presence of actual diagnoses correlated with higher illness anxieties. Conclusions: Illness anxiety is also present for mental disorders. Therefore, it is desirable to consider mental illness anxiety and its systematic detection. T2 - Illness anxiety in psychotherapists KW - illness anxiety KW - mental disorders KW - psychotherapists KW - psychology students KW - Krankheitsangst KW - psychische Störungen KW - Psychotherapeut_innen KW - Psychologiestudierende Y1 - 2021 U6 - https://doi.org/10.1026/1616-3443/a000624 SN - 1616-3443 SN - 2190-6297 VL - 50 IS - 2 SP - 57 EP - 67 PB - Hogrefe CY - Göttingen ER - TY - JOUR A1 - Roth-Rawald, Julia A1 - Kühne, Franziska A1 - Lazarides, Rebecca A1 - Weck, Florian T1 - Krankheitsängste bei Psychologiestudierenden T1 - Health anxiety of psychology students BT - Studie zur Angst vor körperlichen Erkrankungen und psychischen Störungen BT - examination of fear of physical diseases and mental disorders JF - Zeitschrift für Klinische Psychologie und Psychotherapie N2 - Theoretischer Hintergrund: Als Medical Students’ Disease wird die Angst von Medizinstudierenden bezeichnet, unter Krankheiten zu leiden, mit denen sie sich im Studium auseinandersetzen. Fragestellung: Es wurde untersucht, ob ähnliche Phänomene vorübergehender Krankheitsängste auch bei Psychologiestudierenden existieren. Methode: Mittels etablierter Illness-Attitude-Scales (IAS) und einer eigens entwickelten Ergänzung wurden Ängste vor somatischen und psychischen Erkrankungen erhoben. Ergebnisse: Krankheitsängste bei Psychologiestudierenden waren nicht stärker ausgeprägt als bei Studierenden anderer Fachrichtungen. Ängste vor körperlichen Erkrankungen waren häufiger als Ängste vor psychischen Störungen, die keiner signifikanten zeitlichen Veränderung unterlagen. Schlussfolgerung: Die Beschäftigung mit psychischen Störungen geht nicht zwangsläufig mit einem Anstieg von Ängsten vor psychischen Erkrankungen unter Psychologiestudierenden einher. Erhöhte Belastungswerte bei allen Studierenden legen nahe, dass das Studium selbst eine Herausforderung darstellt, für deren Bewältigung Unterstützung angeboten werden kann. the same level of fear regarding health anxiety as students of other disciplines. Their anxiety about suffering from physical illnesses was also greater than their anxiety about suffering from mental disorders. Conclusion: Studying mental disorders does not necessarily result in an increase of related health anxiety. However, university studies seem to be a burdensome period of life in their own right, for which coping support can be provided. N2 - Background: Medical students’ disease is the fear of medical students that they suffer from the diseases they are studying. Objective: This study examined whether similar phenomena of transient health anxiety exist among psychology students. Method: Health anxieties regarding physical illnesses and mental disorders were analyzed with the well-established Illness Attitude Scale (IAS) and a custom-developed supplement. Results: In general, psychology students experienced the same level of fear regarding health anxiety as students of other disciplines. Their anxiety about suffering from physical illnesses was also greater than their anxiety about suffering from mental disorders. Conclusion: Studying mental disorders does not necessarily result in an increase of related health anxiety. However, university studies seem to be a burdensome period of life in their own right, for which coping support can be provided. KW - health anxiety KW - mental disorders KW - mental hypochondriasis KW - psychology KW - students KW - questionnaire KW - Krankheitsangst KW - psychische Störungen KW - mentale Hypochondrie KW - Psychologiestudierende KW - Fragebogen Y1 - 2021 U6 - https://doi.org/10.1026/1616-3443/a000578 SN - 1616-3443 SN - 2190-6297 VL - 49 IS - 2 SP - 103 EP - 112 PB - Hogrefe CY - Göttingen ER - TY - THES A1 - Roth-Rawald, Julia T1 - Krankheitsängste in verschiedenen Populationen und die Effektivität ambulanter Verhaltenstheraphie Y1 - 2023 ER -