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1. Cavity-enhanced zero-phonon emission from an ensemble of G centers in a silicon-on-insulator microring

Author

Lefaucher, B., Jager, J. -B., Calvo, V., Durand, A., Baron, Y., Cache, F., Jacques, V., Robert-Philip, I., Cassabois, G., Herzig, T., Meijer, J., Pezzagna, S., Khoury, M., Abbarchi, M., Dréau, A., and Gérard, J. -M.

Subjects
Physics - Optics, Quantum Physics
Abstract

We report successful incorporation of an ensemble of G centers in silicon-on-insulator (SOI) microrings using ion implantation and conventional nanofabrication. The coupling between the emitters and the resonant modes of the microrings is studied using continuous-wave and time-resolved microphotoluminescence (PL) experiments. We observe the resonant modes of the microrings on PL spectra, on the wide spectral range that is covered by G centers emission. By finely tuning the size of the microrings, we match their zero-phonon line at 1278 nm with a resonant mode of quality factor around 3000 and volume 7.2 (lambda over n)^3. The zero-phonon line intensity is enhanced by a factor of 5, both in continuous-wave and time-resolved measurements. This is attributed to the Purcell enhancement of zero-phonon spontaneous emission into the resonant mode and quantitatively understood considering the distribution of the G centers dipoles. Despite the enhancement of the zero-phonon emission, we do not observe any sizeable decrease of the average lifetime of the G centers, which points at a low radiative yield (<10%). We reveal the detrimental impact of parasitic defects in heavily implanted silicon, and discuss the perspectives for quantum electrodynamics experiments with individual color centers in lightly implanted SOI rings. Our results provide key information for the development of deterministic single photon sources for integrated quantum photonics., Comment: 24 pages, 7 figures, submitted to an international journal with peer review

Published
2022
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2. Technische Zusammenfassung

Author

Jandl, R., Tappeiner, U., Foldal, C., Erb, K., Erb, K.-H., Anderl, M., Baumgarten, A., Bohner, A., Borsky, S., Bruckman, V., Bruckner, M., Díaz-Pinés, E., Dobernig, K., Dumke, H., Eitzinger, J., Fischer, T., Formayer, H., Freudenschuss, A., Gaube, V., Getzner, M., Gingrich, S., Glatzel, S., Gratzer, G., Haas, W., Jäger, J., Kirchner, M., Kitzler, B., Koch, A., Kottusch, C., Kraxner, F., Lapin, K., Leitinger, G., Lexer, M., Lindenthal, T., Loibl, W., Mehdi-Schulz, B., Meyer, I., Miloczki, J., Obrovsky, M., Penker, M., Sandén, T., Scharler, M., Schauberger, G., Mag. Dr. MSc. Schaumberger, A., Schinko, T., Shinozaki, K., Schirpke, U., Schmid, C., Schneider, S., Schöner, W., Schüler, S., Sinabell, F., Spiegel, H., Stöglehner, G., Stumpp, C., Sturmbauer, C., Tasser, E., Thaler, T., Theurl, M., Tötzer, T., Voigt, A., Weber, K., Weber, G., Weiss, P., Wenzel, W., Zessner, M., Zoboli, O., Zollitsch, W., Zuvela-Aloise, M., Jandl, R., Tappeiner, U., Foldal, C., Erb, K., Erb, K.-H., Anderl, M., Baumgarten, A., Bohner, A., Borsky, S., Bruckman, V., Bruckner, M., Díaz-Pinés, E., Dobernig, K., Dumke, H., Eitzinger, J., Fischer, T., Formayer, H., Freudenschuss, A., Gaube, V., Getzner, M., Gingrich, S., Glatzel, S., Gratzer, G., Haas, W., Jäger, J., Kirchner, M., Kitzler, B., Koch, A., Kottusch, C., Kraxner, F., Lapin, K., Leitinger, G., Lexer, M., Lindenthal, T., Loibl, W., Mehdi-Schulz, B., Meyer, I., Miloczki, J., Obrovsky, M., Penker, M., Sandén, T., Scharler, M., Schauberger, G., Mag. Dr. MSc. Schaumberger, A., Schinko, T., Shinozaki, K., Schirpke, U., Schmid, C., Schneider, S., Schöner, W., Schüler, S., Sinabell, F., Spiegel, H., Stöglehner, G., Stumpp, C., Sturmbauer, C., Tasser, E., Thaler, T., Theurl, M., Tötzer, T., Voigt, A., Weber, K., Weber, G., Weiss, P., Wenzel, W., Zessner, M., Zoboli, O., Zollitsch, W., and Zuvela-Aloise, M.

Abstract

Die Technische Zusammenfassung des APCC-Sonderberichts ″Landnutzung und Klimawandel in Österreich″ umfasst die Kernbotschaften der Kapitel 1–9. In ihr sind die Hauptaussagen zu den sozioökonomischen und klimatischen Treibern der Landnutzungsänderungen, zu den Auswirkungen von Landnutzung und -bewirtschaftung auf den Klimawandel, zu Minderungs- und Anpassungsoptionen im Kontext nachhaltiger Entwicklungsziele sowie zu Synergien, Zielkonflikten und Umsetzungsbarrieren von Klimamaßnahmen enthalten.

Published
2024
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3. Zusammenfassung für Entscheidungstragende

Author

Jandl, R., Tappeiner, U., Foldar, C., Erb, K., Erb, K.-H., Baumgarten, A., Dumke, H., Fischer, T., Formayer, H., Gaube, V., Getzner, M., Gingrich, S., Gratzer, G., Haas, W., Hinterberger, F., Jäger, J., Kottusch, C., Kraxner, F., Lapin, K., Meyer, I., Schinko, T., Shinozaki, K., Schneider, S., Schüler, S., Stöglehner, G., Tasser, E., Thaler, T., Weiss, P., Wenzel, W., Zollitsch, W., Jandl, R., Tappeiner, U., Foldar, C., Erb, K., Erb, K.-H., Baumgarten, A., Dumke, H., Fischer, T., Formayer, H., Gaube, V., Getzner, M., Gingrich, S., Gratzer, G., Haas, W., Hinterberger, F., Jäger, J., Kottusch, C., Kraxner, F., Lapin, K., Meyer, I., Schinko, T., Shinozaki, K., Schneider, S., Schüler, S., Stöglehner, G., Tasser, E., Thaler, T., Weiss, P., Wenzel, W., and Zollitsch, W.

Abstract

Die Zusammenfassung für Entscheidungstragende fasst die Inhalte des APCC Special Report „Landnutzung und Klimawandel in Österreich“ in komprimierter Form zusammen. Im Lichte des Zusammenhanges von Landnutzung, Klimawandel und gesellschaftlichem Wohlergehen werden die gegenwärtige Situation und zukünftige Entwicklungen in Österreich synoptisch beschrieben, wesentliche Optionen der Klimawandelanpassung und des Klimaschutzes dargestellt, deren Trade-offs und Synergien systematisch beleuchtet und zentrale Einsichten zur Umsetzung von Strategien zum Klimaschutz und der Klimawandelanpassung in Österreich zusammengefasst.

Published
2024
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5. Changes of a frailty index based on common blood and urine tests during a hospital stay on geriatric wards predict 6-month and 1-year mortality in older people

Author

Jäger J, Sieber CC, Gaßmann KG, and Ritt M

Subjects
geriatric wards, frailty, frailty index, cumulative deficit, older people, Geriatrics, RC952-954.6
Abstract

Jakob Jäger,1,2 Cornel Christian Sieber,1,3 Karl-Günter Gaßmann,1,2 Martin Ritt1,2 1Institute for Biomedicine of Ageing (IBA), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), D-90408 Nürnberg, Germany; 2Department of Internal Medicine III (Medicine of Ageing), Geriatrics Center Erlangen, Malteser Hospital Erlangen, D-91054 Erlangen, Germany; 3Department of General Internal Medicine and Geriatrics, Hospital of the Order of St John of God, D-93049 Regensburg, Germany Background: We aimed to evaluate the abilities of a 21-item frailty index based on laboratory blood and urine tests (FI-Lab21) assessed at different points in time, ie, at admission to hospital (FI-Lab21admission) and before discharge from hospital (FI-Lab21discharge), and the change of the FI-Lab21 during the hospital stay to predict 6-month and 1-year mortality in hospitalized geriatric patients. Methods: Five hundred hospitalized geriatric patients aged ≥65 years were included in this analysis. Follow-up data were acquired after a period of 6 months and 1 year. Results: The FI-Lab21admission and FI-Lab21discharge scores were 0.33±0.15 and 0.31±0.14, respectively (P

Published
2019

6. BASE—high-precision comparisons of the fundamental properties of protons and antiprotons

Author

Latacz, B M, Arndt, B P, Bauer, B B, Devlin, J A, Erlewein, S R, Fleck, M, Jäger, J I, Schiffelholz, M, Umbrazunas, G, Wursten, E J, Abbass, F, Micke, P, Popper, D, Wiesinger, M, Will, C, Yildiz, H, Blaum, K, Matsuda, Y, Mooser, A, Ospelkaus, C, Quint, W, Soter, A, Walz, J, Yamazaki, Y, Smorra, C, and Ulmer, S

Subjects
Nuclear Physics - Theory, Nuclear Physics - Experiment, Präzisionsexperimente - Abteilung Blaum
Abstract

The BASE collaboration at the antiproton decelerator/ELENA facility of CERN compares the fundamental properties of protons and antiprotons with ultra-high precision. Using advanced Penning trap systems, we have measured the proton and antiproton magnetic moments with fractional uncertainties of 300 parts in a trillion (p.p.t.) and 1.5 parts in a billion (p.p.b.), respectively. The combined measurements improve the resolution of the previous best test in that sector by more than a factor of 3000. Very recently, we have compared the antiproton/proton charge-to-mass ratios with a fractional precision of 16 p.p.t., which improved the previous best measurement by a factor of 4.3. These results allowed us also to perform a differential matter/antimatter clock comparison test to limits better than $3\,$%. Our measurements enable us to set limits on 22 coefficients of CPT- and Lorentz-violating standard model extensions (SME) and to search for potentially asymmetric interactions between antimatter and dark matter. In this article, we review some of the recent achievements and outline recent progress towards a planned improved measurement of the antiproton magnetic moment with an at least tenfold improved fractional accuracy.[graphic not available: see fulltext][graphic not available: see fulltext]

Published
2023

7. Operationalizing a frailty index using routine blood and urine tests

Author

Ritt M, Jäger J, Ritt JI, Sieber CC, and Gaßmann KG

Subjects
Older people, hospital, geriatric wards, frailty, risk stratification, mortality, Geriatrics, RC952-954.6
Abstract

Martin Ritt,1,2 Jakob Jäger,2 Julia Isabel Ritt,2 Cornel Christian Sieber,1,3 Karl-Günter Gaßmann1,2 1Institute for Biomedicine of Ageing (IBA), Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Nuremberg, Germany; 2Department of Internal Medicine III (Medicine of Ageing), Geriatrics Center Erlangen, Hospital of the Congregation of St Francis Sisters of Vierzehnheiligen, Erlangen, Germany; 3Department of General Internal Medicine and Geriatrics, Hospital of the Order of St John of God, Regensburg, Germany Background: Uncomplicated frailty instruments are desirable for use in a busy clinical setting. The aim of this study was to operationalize a frailty index (FI) from routine blood and urine tests, and to evaluate the properties of this FI compared to other frailty instruments.Materials and methods: We conducted a secondary analysis of a prospective cohort study on 306 patients aged ≥65 years hospitalized on geriatric wards. An FI comprising 22 routine blood parameters and one standard urine parameter (FI-Lab), a 50-item FI based on a comprehensive geriatric assessment (FI-CGA), a combined FI (FI-combined [items from the FI-Lab + others from the FI-CGA]), the Clinical Frailty Scale, rule-based frailty definition, and frailty phenotype were operationalized from data obtained during patients’ hospital stays (ie, before discharge [baseline examination]). Follow-up data were obtained up to 1 year after the baseline examination.Results: The mean FI-Lab score was 0.34±15, with an upper limit of 0.74. The FI-Lab was correlated with all the other frailty instruments (all P

Published
2017

8. Stakeholder engagement and decarbonization pathways: Meeting the challenges of the COVID-19 pandemic

Author

Jäger, J., Brutschin, E., Pianta, S., Omann, I., Kammerlander, M., Sudharmma Vishwanathan, S., Vrontisi, Z., MacDonald, J., van Ruijven, B., Jäger, J., Brutschin, E., Pianta, S., Omann, I., Kammerlander, M., Sudharmma Vishwanathan, S., Vrontisi, Z., MacDonald, J., and van Ruijven, B.

Abstract

Climate change is an extremely complex challenge characterized by its systemic nature and deep uncertainties. Thus, finding solutions requires a continuing and constructive dialogue between the research community and a wide range of stakeholders from governments, non-governmental organizations, civil society, international organizations, industry, businesses and financial institutions. The ENGAGE project (https://www.engage-climate.org/) is advancing knowledge co-production through an iterative process of stakeholder engagement with two main streams: (i) stakeholder co-design and assessment of global decarbonization pathways and (ii) stakeholder dialogues on national policies and pathways. Both the global and national stakeholder processes are designed to inform multiple project activities, including: conceptualization of feasibility and assessing the feasibility of decarbonization policies and strategies; decarbonization pathway development using integrated assessment models and considering both feasibility and equity; and assessment of the relative importance of climate change impacts vis-Ã -vis potential co-benefits. With the start of the COVID-19 pandemic six months after the beginning of the project, all of the stakeholder engagement activities had to be organized as online events. Between March 2020 and April 2022, 5 online workshops were organized, two at the global level and 3 at the regional/national level. This paper documents how the challenges of effectively engaging stakeholders in a co-design and dialogue process in an online setting have been met through a process of evaluation and learning that led to the introduction of new approaches and tools to support an inclusive exploration and development of low-carbon transition pathways. We show that a combination of interactive visualizations, open channel surveys and moderated breakout groups are particularly useful tools for online stakeholder engagement. The learning that has taken place through the use

Published
2023

9. Testing CPT Invariance by High-Precision Comparisons of Fundamental Properties of Protons and Antiprotons at BASE

Author

Wursten, E. J., Borchert, M. J., Devlin, J. A., Erlewein, S. R., Fleck, M., Harrington, J. A., Jäger, J. I., Latacz, B. M., Micke, P., Umbrazunas, G., Abbass, F., Bohman, M., Kommu, S., Popper, D., Wiesinger, M., Will, C., Yildiz, H., Blaum, K., Matsuda, Y., Mooser, A., Ospelkaus, C., Soter, A., Quint, W., Walz, J., Yamazaki, Y., Smorra, C., Ulmer, S., Wursten, E. J., Borchert, M. J., Devlin, J. A., Erlewein, S. R., Fleck, M., Harrington, J. A., Jäger, J. I., Latacz, B. M., Micke, P., Umbrazunas, G., Abbass, F., Bohman, M., Kommu, S., Popper, D., Wiesinger, M., Will, C., Yildiz, H., Blaum, K., Matsuda, Y., Mooser, A., Ospelkaus, C., Soter, A., Quint, W., Walz, J., Yamazaki, Y., Smorra, C., and Ulmer, S.

Abstract

The BASE collaboration at the Antiproton Decelerator facility of CERN compares the fundamental properties of protons and antiprotons using advanced Penning-trap systems. In previous measurement campaigns, we measured the magnetic moments of the proton and the antiproton, reaching (sub-)parts-in-a-billion fractional uncertainty. In the latest campaign, we have compared the proton and antiproton charge-to-mass ratios with a fractional uncertainty of 16 parts in a trillion. In this contribution, we give an overview of the measurement campaign, and detail how its results are used to constrain nine spin-independent coefficients of the Standard-Model Extension in the proton and electron sector., Comment: Presented at the Ninth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, May 17-26, 2022

Published
2023

10. Stakeholder engagement in climate change solutions

Author

Jäger, J., Battersby, S., van Ruijven, B., Jäger, J., Battersby, S., and van Ruijven, B.

Abstract

Workshops bringing scientists together with stakeholders from various backgrounds have shown the importance of dialogue for co-designing climate pathways and highlighted the need for physical meetings and capacity building. To find and implement solutions to climate change and other complex problems that society faces, requires constructive dialogue between the research community and a wide range of other stakeholders. Since 2019, the ENGAGE project has developed and used a carefully designed stakeholder engagement process to co-design climate mitigation pathways through open discussions about a range of topics using a combination of surveys, visual tools, and presentations.

Published
2023

11. ENGAGE Summary for Policymakers

Author

van Ruijven, B., Jäger, J., Riahi, K., Battersby, S., Bertram, C., Bosetti, V., Brutschin, E., Byers, E., Cherp, A., Drouet, L., Fujimori, S., Krey, V., Schaeffer, R., Schmidt Tagomori, I., van Vuuren, D., Vrontisi, Z., ENGAGE Consortium, van Ruijven, B., Jäger, J., Riahi, K., Battersby, S., Bertram, C., Bosetti, V., Brutschin, E., Byers, E., Cherp, A., Drouet, L., Fujimori, S., Krey, V., Schaeffer, R., Schmidt Tagomori, I., van Vuuren, D., Vrontisi, Z., and ENGAGE Consortium

Abstract

As the world faces the risks of dangerous climate change, policymakers, industry and civil society leaders are counting on Integrated Assessment Models (IAMs) to inform and guide strategies to deliver on the objectives of the Paris Agreement (PA) and subsequent agreements. The Exploring National and Global Actions to Reduce Greenhouse Gas Emissions (ENGAGE) project has responded to this challenge by engaging these stakeholders in co-producing a new generation of global and national decarbonization pathways.

Published
2023

12. Correction of the baseline fluctuations in the GEM-based ALICE TPC

Author

Alme, J., Alt, T., Andrei, C., Anguelov, V., Appelshäuser, H., Arslandok, M., Barnaföldi, G.g., Bartsch, E., Becht, P., Bellwied, R., Berdnikova, A., Bialas, N., Bialas, P., Biswas, S., Blidaru, B., Boldizsár, L., Bratrud, L., Braun-munzinger, P., Bregant, M., Britton, C.l., Brucker, S., Brücken, E.j., Büsching, H., Soto Camacho, R., Castro, A.j., Chatzidaki, P., Christiansen, P., Clonts, L.g., Cormier, T.m., Dhankher, P., Dittrich, S., Ehlers, R., Ericson, M.n., Ezell, N.b., Fabbietti, L., Flor, F., Gaardhøje, J.j., Munhoz, M.g., Garabatos, C., Gasik, P., Geiger, T., Gera, Á., Glässel, P., Goh, D.j.q., Grein, A., Gundem, T., Gunji, T., Habib, M., Hamagaki, H., Hamar, G., Hansen, J.c., Harris, J.w., Hauer, P., Hayashi, S., Hehner, J., Heino, J.k., Hellbär, E., Helstrup, H., Hemmer, M., Herghelegiu, A., Hernandez, R.a., Hernandez Herrera, H.d., Hilden, T.e., Hughes, C., Hummel, S., Ivanov, M., Jäger, J., Jung, J., Jung, M., Kangasaho, E., Ketzer, B., Kirsch, S., Kleiner, M., Klemenz, T., Knospe, A.g., Kowalski, M., Kreis, L., Krüger, M., Kupfer, N., Lang, R., Lautner, L., Lesch, M., Lesenechal, Y., Liebske, F., Lippmann, C., Majka, R.d., Markert, C., Martins, T.a., Masciocchi, S., Matonoha, O., Matyja, A., Meres, M., Mihaylov, D.l., Miśkowiec, D., Mittelstaedt, T., Mordasini, C., Morhardt, T., Muley, S., Mulligan, J., Munzer, R.h., Murakami, H., Münning, K., Nassirpour, A., Nattrass, C., Nielsen, B.s., Noije, W.a.v., Ogino, M., Oliveira Da Silva, A.c., Oskarsson, A., Oyama, K., Önnerstad, A., Österman, L., Pachmayer, Y., Paić, G., Patra, R.n., Peskov, V., Petris, M., Petrovici, M., Planinic, M., Prodan, L., Radu, A., Rasson, J., Read, K.f., Rehman, A., Renfordt, R., Røed, K., Röhrich, D., Rubio, E., Rusu, A., Sanches, B.c.s., Schambach, J., Scheid, S., Schmidt, C., Schmier, A., Schweda, K., Sekihata, D., Siebig, S., Silva, R.w.d., Silvermyr, D., Sitar, B., Smirnov, N., Soltveit, H.k., Sorensen, S.p., Stachel, J., Šerkšnytė, L., Tambave, G., Ullaland, K., Ulukutlu, B., Varga, D., Vazquez Rueda, O., Velure, A., Vergara Limón, S., Vorbach, O., Voss, B., Weidlich, C., Wiechula, J., Windelband, B., Winkler, S., Alme, J., Alt, T., Andrei, C., Anguelov, V., Appelshäuser, H., Arslandok, M., Barnaföldi, G.g., Bartsch, E., Becht, P., Bellwied, R., Berdnikova, A., Bialas, N., Bialas, P., Biswas, S., Blidaru, B., Boldizsár, L., Bratrud, L., Braun-munzinger, P., Bregant, M., Britton, C.l., Brucker, S., Brücken, E.j., Büsching, H., Soto Camacho, R., Castro, A.j., Chatzidaki, P., Christiansen, P., Clonts, L.g., Cormier, T.m., Dhankher, P., Dittrich, S., Ehlers, R., Ericson, M.n., Ezell, N.b., Fabbietti, L., Flor, F., Gaardhøje, J.j., Munhoz, M.g., Garabatos, C., Gasik, P., Geiger, T., Gera, Á., Glässel, P., Goh, D.j.q., Grein, A., Gundem, T., Gunji, T., Habib, M., Hamagaki, H., Hamar, G., Hansen, J.c., Harris, J.w., Hauer, P., Hayashi, S., Hehner, J., Heino, J.k., Hellbär, E., Helstrup, H., Hemmer, M., Herghelegiu, A., Hernandez, R.a., Hernandez Herrera, H.d., Hilden, T.e., Hughes, C., Hummel, S., Ivanov, M., Jäger, J., Jung, J., Jung, M., Kangasaho, E., Ketzer, B., Kirsch, S., Kleiner, M., Klemenz, T., Knospe, A.g., Kowalski, M., Kreis, L., Krüger, M., Kupfer, N., Lang, R., Lautner, L., Lesch, M., Lesenechal, Y., Liebske, F., Lippmann, C., Majka, R.d., Markert, C., Martins, T.a., Masciocchi, S., Matonoha, O., Matyja, A., Meres, M., Mihaylov, D.l., Miśkowiec, D., Mittelstaedt, T., Mordasini, C., Morhardt, T., Muley, S., Mulligan, J., Munzer, R.h., Murakami, H., Münning, K., Nassirpour, A., Nattrass, C., Nielsen, B.s., Noije, W.a.v., Ogino, M., Oliveira Da Silva, A.c., Oskarsson, A., Oyama, K., Önnerstad, A., Österman, L., Pachmayer, Y., Paić, G., Patra, R.n., Peskov, V., Petris, M., Petrovici, M., Planinic, M., Prodan, L., Radu, A., Rasson, J., Read, K.f., Rehman, A., Renfordt, R., Røed, K., Röhrich, D., Rubio, E., Rusu, A., Sanches, B.c.s., Schambach, J., Scheid, S., Schmidt, C., Schmier, A., Schweda, K., Sekihata, D., Siebig, S., Silva, R.w.d., Silvermyr, D., Sitar, B., Smirnov, N., Soltveit, H.k., Sorensen, S.p., Stachel, J., Šerkšnytė, L., Tambave, G., Ullaland, K., Ulukutlu, B., Varga, D., Vazquez Rueda, O., Velure, A., Vergara Limón, S., Vorbach, O., Voss, B., Weidlich, C., Wiechula, J., Windelband, B., and Winkler, S.

Published
2023

13. BASE-STEP: A transportable antiproton reservoir for fundamental interaction studies

Author

Smorra, C., Abbass, F., Bohman, M., Dutheil, Y., Hobl, A., Popper, D., Arndt, B., Bauer, B. B., Devlin, J. A., Erlewein, S., Fleck, M., Jäger, J. I., Latacz, B. M., Micke, P., Schiffelholz, M., Umbrazunas, G., Wiesinger, M., Will, C., Wursten, E., Yildiz, H., Blaum, K., Matsuda, Y., Mooser, A., Ospelkaus, C., Quint, W., Soter, A., Walz, J., Yamazaki, Y., and Ulmer, S.

Subjects
Physics - Instrumentation and Detectors, Atomic Physics (physics.atom-ph), Other Fields of Physics, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Detectors and Experimental Techniques, physics.atom-ph, physics.ins-det, Physics - Atomic Physics
Abstract

Currently, the only worldwide source of low-energy antiprotons is the AD/ELENA facility located at CERN. To date, all precision measurements on single antiprotons have been conducted at this facility and provide stringent tests of the fundamental interactions and their symmetries. However, the magnetic field fluctuations from the facility operation limit the precision of upcoming measurements. To overcome this limitation, we have designed the transportable antiproton trap system BASE-STEP to relocate antiprotons to laboratories with a calm magnetic environment. We anticipate that the transportable antiproton trap will facilitate enhanced tests of CPT invariance with antiprotons, and provide new experimental possibilities of using transported antiprotons and other accelerator-produced exotic ions. We present here the technical design of the transportable trap system. This includes the transportable superconducting magnet, the cryogenic inlay consisting of the trap stack and the detection systems, and the differential pumping section to suppress the residual gas flow into the cryogenic trap chamber., Comment: To be submitted to Rev. Sci. Instruments

Published
2023

14. Prioritäten in der Kompetenzorientierung aus Sicht der europäischen Ärzt:innen in Weiterbildung (ÄIW) – eine qualitative Delphi-Studie

Author

Junge, H, Schuster, K, Jäger, J, Sun, S, Poppleton, A, and Dupont, F

Subjects
ddc: 610, Medicine and health
Abstract

Hintergrund: Die Rolle der Allgemeinmedizin hat sich in den vergangenen Jahrzehnten deutlich verändert. Gerade junge Ärzt:innen sind heutzutage mit anderen beruflichen Aufgaben und Risiken konfrontiert, die insbesondere beim Karrierestart eine Rolle spielen. Die WONCA Vereinigung für [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2022
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15. Explorative Mixed-methods-Studie zu medizinischen Kompetenzen im Medizinstudium (gem. NKLM2.0): Status Quo und studentische Anforderungen an kompetenzorientierte Lernangebote an der Universität des Saarlandes

Author

Schuster, K, Junge, H, Volz-Willems, S, Jäger, J, and Dupont, F

Subjects
ddc: 610, Medicine and health
Abstract

Hintergrund: Die medizinische Lehre in Deutschland wird sich im Jahr 2025 stark verändern. Viele medizinische Fakultäten in Deutschland gestalten ihr Curriculum kompetenzbasiert neu, um die Absolventen besser auf die Praxis vorzubereiten. Welche klinischen Fähigkeiten Studierende während [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2022
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18. Kompetenzorientiertes Blended Learning in der Allgemeinmedizin – quantitative Unterschiede in der Motivation und der Lernkompetenz zwischen Medizinstudium und der Allgemeinmedizin in Studierenden des fünften Jahres an der Universität des Saarlandes

Author

Salzmann, A, Bopp, C, Willems, S, Jäger, J, and Dupont, F

Subjects
ddc: 610, Medicine and health
Abstract

Hintergrund: Autonome Motivation ist in der Didaktik mit besseren Lernstrategien und besseren Leistungen assoziiert. Auch in der Medizindidaktik gibt es den Ansatz, die autonome Motivation von Studierenden gezielt zu stärken. Über das Motivationsverhalten von Studierenden in einem Allgemeinmedizin-Curriculum [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2021
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19. Tablet-basiertes Prüfen in einem kompetenzorientierten blended-learning Curriculum in der studentischen Lehre am Zentrum Allgemeinmedizin an der Universität des Saarlandes

Author

Volz-Willems, S, Dupont, F, and Jäger, J

Subjects
ddc: 610, Medicine and health
Abstract

Hintergrund: Wir haben, in Kooperation mit AMBOSS und dem IMPP, ein kompetenzorientiertes Blended-learning-Konzept im Pflichtkurs Allgemeinmedizin unseres Medizinstudiums eingeführt. Die Abschlussklausur wird Tablet-basiert durchgeführt. Dies erweitert die Möglichkeiten zur Überprüfung [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2021
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20. Homöopathie heute – Stellenwert der Homöopathie in der hausärztlichen Versorgung im Saarland

Author

Millenaar, A, Ohlmeier, S, and Jäger, J

Subjects
ddc: 610, Medicine and health
Abstract

Hintergrund: Die Homöopathie wird als Therapiemethode von vielen HausärztInnen angewandt. Ein wissenschaftlich fundierter Wirknachweis konnte seit ihrer Begründung bisher nicht erbracht werden. Fragestellung: Ziel dieser Studie war es, die Diskrepanz zwischen wissenschaftlicher Datenlage [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2021
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21. MMP-8 and TIMP-1 are associated to periodontal inflammation in patients with rheumatoid arthritis under methotrexate immunosuppression – First results of a cross-sectional study

Author

Schmalz, G., Davarpanah, I., Jäger, J., Mausberg, R. F., Krohn-Grimberghe, B., Schmidt, J., Haak, R., Sack, U., and Ziebolz, Dirk

Subjects
lcsh:QR1-502, Chronic periodontitis, Gingival crevice fluid, Inflammation, Matrix metalloproteinase, Periodontal immunology, lcsh:Microbiology
Abstract

Background: Aim of this cross-sectional study was the investigation of associations between different rheumatoid arthritis (RA)-related blood parameters and periodontal condition as well as selected periodontal pathogenic bacteria in RA patients under methotrexate (MTX) immunosuppression. Methods: Periodontal probing depth (PPD), bleeding on probing (BOP) and clinical attachment loss (CAL) were assessed. Periodontal condition was classified into: no/mild and moderate or severe periodontitis (P). Prevalence of selected periodontal pathogenic bacteria and concentration of matrix metalloproteinase 8 (MMP-8) was assessed from the gingival crevicular fluid (GCF) using PCR and ELISA, respectively. Blood samples were analyzed for the concentration of selected rheumatoid parameters. Statistical analysis: t-test, Mann–Whitney-U-Test, exact Fisher tests or chi square test (p

Published
2019

27. Improved 3D-imaging detection at the Cryogenic Storage Ring

Author

Jäger, J.

Subjects
Physics::Instrumentation and Detectors, Quantendynamik - Abteilung Blaum
Abstract

The study of electron induced molecular fragmentation processes in fast-beam experiments sets high demands on the technical realization of appropriate detection techniques. A complete reconstruction of the total kinetic energy release and thus detailed physical information of this process can only be deduced from the fully correlated measurement of distances. Therefore, the reaction product detector must be able to measure both the impact positions on the detectors surface as well as the time difference between impacts with the highest resolution. In this work a new timing readout for the 3D-imaging detector NICE at the Cryogenic Storage Ring in Heidelberg was set up and tested for the first time. The upgrade is based on the silicon photomultiplier technology, employing a multi-pixel detector with high intrinsic time resolution. First performance test show promising results: it was possible to resolve spatially well separated impacts with a time difference down to zero, exceeding the time resolution limit of the pre-existing setup.

Published
2021

31. Psychosoziale Aspekte eines Lebervorsorgescreenings in Rheinland-Pfalz und im Saarland

Author

Fichtner, U, Arslanow, A, Beyer, A, Binder, H, Bogatyreva, L, Engelmann, T, Ewijk, Rv, Galle, PR, Graf, E, Heil, FJ, Jäger, J, Lammert, F, Mainz, D, Nguyen-Tat, M, Ortner, J, Reichert, M, Römer, B, Stelzer, D, Velthuis, L, Volz-Willems, S, Wörns, MA, Zimper, G, Zwerenz, B, Farin-Glattacker, E, Fichtner, U, Arslanow, A, Beyer, A, Binder, H, Bogatyreva, L, Engelmann, T, Ewijk, Rv, Galle, PR, Graf, E, Heil, FJ, Jäger, J, Lammert, F, Mainz, D, Nguyen-Tat, M, Ortner, J, Reichert, M, Römer, B, Stelzer, D, Velthuis, L, Volz-Willems, S, Wörns, MA, Zimper, G, Zwerenz, B, and Farin-Glattacker, E

Published
2020

38. Defining transformative climate science to address high-end climate change

Author

Tàbara, D, Jäger, J, Mangalagiu, D, Grasso, M, Tàbara, DJ., Tàbara, D, Jäger, J, Mangalagiu, D, Grasso, M, and Tàbara, DJ.

Abstract

High-end climate change requires transformative solutions, as conventional strategies and solutions will not be enough if major disruptions in social-ecological systems are to be avoided. However, conventional climate assessment approaches and methods show many limitations if they are to provide robust knowledge and support to the implementation of such solutions in practice. To this end, we define transformative climate science as the open-ended process of producing, structuring, and applying solutions-oriented knowledge to fast-link integrated adaptation and mitigation strategies to sustainable development. In particular, based on our experiences within regional cases in Central Asia, Europe, Iberia, Scotland, and Hungary, we have selected 12 dimensions that scientists and practitioners can use as a checklist to design transformative-oriented climate assessments. While it is possible to talk both about transformative adaptation and transformative mitigation, in this paper, we make the case that societal transformation does not depend on mitigation or adaptation policies and actions, mostly because they are related to sustainability innovations, which are endogenous developments derived from deliberate social learning.

Published
2019

41. First steps of learning analytics in a blended learning general practice curriculum at Saarland University – a quantitative approach

Author

Junge, Helene, Schuster, Kerstin, Salzmann, Aline, Volz-Willems, Sara, Jäger, Johannes, and Dupont, Fabian

Subjects
formative assessment, digital learning behaviour, blended learning, undergraduate medical education, Special aspects of education, LC8-6691, Medicine
Abstract

Objectives: Medical education has been revolutionized by the growing importance of digital learning. Little is known about students’ online study behaviour and its relationship with exam performance. This quantitative study analyses and describes students’ digital learning behaviours in a blended learning curriculum for General practice at Saarland University, Germany. It also examines the relationship between digital learning behaviour and exam performance.Methods: Cohort and individualized AMBOSS user data from 195 students at Saarland University was analysed quantitatively. Performance in course-specific multiple-choice question sessions and user data of the integrated online learning activities were correlated with each other and with General practice exam grades. Anonymized data from 10,534 students from 35 other German universities served as the reference cohort. Differences in digital learning behaviour between the groups were calculated using Mann-Whitney-U-Test for non-normally distributed data.Results: Students in the blended learning course used integrated content more frequently than the reference cohort (U=48777, p

Published
2023
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42. SEAL-Programm – Früherkennung der Leberzirrhose durch Screening der Allgemeinbevölkerung im Rahmen des Check-up 35

Author

Nguyen-Tat, M, Lammert, F, Arslanow, A, Heil, FJ, Mainz, D, Zimper, G, Zwerenz, B, Wangler, J, Jansky, M, Gisch, D, Jäger, J, Engelmann, T, Graf, E, Knaus, J, Stelzer, D, Fichtner, U, Binder, H, Farin-Glattacker, E, Ewijk, Rv, Ortner, J, Velthuis, L, and Galle, PR

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Hintergrund: Die Leberzirrhose ist eine chronische Krankheit, die sich über Jahrzehnte auf dem Boden verschiedener Risikofaktoren häufig unbemerkt entwickelt. Im Frühstadium der Leberzirrhose sind die Patienten in der Regel symptomfrei, es sind noch keine Organkomplikationen aufgetreten,[zum vollständigen Text gelangen Sie über die oben angegebene URL], 17. Deutscher Kongress für Versorgungsforschung (DKVF)

Published
2018
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43. Evaluation des OSCE als implementierter Prüfungsstandard zur Realisierung eines longitudinalen Curriculums ärztlicher Basisfertigkeiten im Fachbereich Allgemeinmedizin

Author

Wickert, EM and Jäger, J

Subjects
ddc: 610, Longitudinales Curriculum, 610 Medical sciences, Medicine, Masterplan Medizin 2020, OSCE in der Vorklinik
Abstract

Hintergrund: Mit der Veröffentlichung des Masterplans Medizin 2020 stehen die medizinischen Fakultäten vor der Aufgabe, praxisnahe Curricula ab dem ersten Semester zu gestalten. In Anbetracht der geplanten Einführung von OSCE-Prüfungen im Staatsexamen benötigen Studierende und[zum vollständigen Text gelangen Sie über die oben angegebene URL], 52. Kongress für Allgemeinmedizin und Familienmedizin

Published
2018
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44. Positive tipping points in a rapidly warming world

Author

David Tàbara, J. (J.), Frantzeskaki, N. (Niki), Hölscher, K. (Katharina), Pedde, S. (Simona), Kok, K. (Kasper), Lamperti, F. (Francesco), Christensen, J.H. (Jens H), Jäger, J. (Jill), Berry, P. (Pam), David Tàbara, J. (J.), Frantzeskaki, N. (Niki), Hölscher, K. (Katharina), Pedde, S. (Simona), Kok, K. (Kasper), Lamperti, F. (Francesco), Christensen, J.H. (Jens H), Jäger, J. (Jill), and Berry, P. (Pam)

Abstract

The challenge of meeting the UNFCCC CoP21 goal of keeping global warming ‘well below 2 °C and to pursue efforts towards 1.5 °C’ (‘the 2–1.5 °C target’) calls for research efforts to better understand the opportunities and constraints for fundamental transformations in global systems dynamics which currently drive the unsustainable and inequitable use of the Earth's resources. To this end, this research reviews and introduces the notion of positive tipping points as emergent properties of systems–including both human capacities and structural conditions — which would allow the fast deployment of evolutionary-like transformative solutions to successfully tackle the present socio-climate quandary. Our research provides a simple procedural synthesis to help identify and coordinate the required agents’ capacities to implement transformative solutions aligned with such climate goal in different contexts. Our research shows how to identify the required capacities, conditions and potential policy interventions which could eventually lead to the emergence of positive tipping points in various social–ecological systems to address the 2–1.5 °C policy target. Our insights are based on the participatory downscaling of global Shared Socio-economic Pathways (SSPs) to Europe, the formulation of pathways of solutions within these scenarios and the results from an agent-based economic modelling.

Published
2018
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47. Assoziation von parodontaler Entzündung und MMP-8- und TIMP-1-Dysbalance bei Patienten mit rheumatoider Arthritis unter MTX-Immunsuppression

Author

Krohn-Grimberghe, B, Darvapanah, I, Jäger, J, Mausberg, RF, Haak, R, Ulrich, S, Schmalz, G, and Ziebolz, D

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Einleitung: Ziel: Ziel der klinischen Querschnittsstudie war zu überprüfen, ob ein Zusammenhang von parodontaler Erkrankung sowie parodontalpathogener Bakterienlast und verschiedenen Entzündungsparametern im Blut bei Patienten mit rheumatoider Arthritis (RA) unter Immunsuppression mit[zum vollständigen Text gelangen Sie über die oben angegebene URL], 45. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh), 31. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh), 27. Jahrestagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)

Published
2017
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48. Untersuchung von metastabilen Zuständen hochgeladener Ruthenium-Ionen mittels EUV-Spektroskopie

Author

Jäger, J.

Abstract

To gain insight into the stellar evolution of stars one can use the astronomical observations of elements that are heavier than iron. The atomic data of such elements are necessary in order to interpret stars’ spectroscopic observations. Technetium (Z=43) is of particular interest since it is the lightest element with no stable isotopes and it has a limited lifetime. Observation of such element from the stars can provide a time scale of their evolutionary stages. Very similar to Technetium in its electronic structure is Ruthenium (Z=44), which in this thesis will be used to assign the observed lines of this element to their possible charge state. These lines were measured using an electron beam ion trap at the Max Planck Institute for Nuclear Physics in Heidelberg. Through a flat-field grazing incidence spectrometer florescent light from excited ruthenium ions, in the 17–27nm wavelength range, was recorded. Considering the intensity of different spectral lines at different electron beam energies, the presence of metastable states could be observed. The contributions of metastable states were discussed using three different approaches where the space charge potential of the electron beam was corrected differently.

Published
2017

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