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2. Pressure effect and Superconductivity in $\beta$-Bi$_4$I$_4$ Topological Insulator

Author

Pisoni, A., Gaal, R., Zeugner, A., Falkowski, V., Isaeva, A., Huppertz, H., Autes, G., Yazyev, O. V., and Forro, L.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

We report a detailed study of the transport coefficients of $\beta$-Bi$_4$I$_4$ quasi-one dimensional topological insulator. Electrical resistivity, thermoelectric power, thermal conductivity and Hall coefficient measurements are consistent with the possible appearance of a charge density wave order at low temperatures. Both electrons and holes contribute to the conduction in $\beta$-Bi$_4$I$_4$ and the dominant type of charge carrier changes with temperature as a consequence of temperature-dependent carrier densities and mobilities. Measurements of resistivity and Seebeck coefficient under hydrostatic pressure up to 2 GPa show a shift of the charge density wave order to higher temperatures suggesting a strongly one-dimensional character at ambient pressure. Surprisingly, superconductivity is induced in $\beta$-Bi$_4$I$_4$ above 10 GPa with of 4.0 K which is slightly decreasing upon increasing the pressure up to 20 GPa. Chemical characterisation of the pressure-treated samples shows amorphization of $\beta$-Bi$_4$I$_4$ under pressure and rules out decomposition into Bi and BiI$_3$ at room-temperature conditions., Comment: 20 pages, 8 figures

Published
2017
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5. Rheumatologie

Author

Huppertz, H.-I., Speer, Christian P., editor, Gahr, Manfred, editor, and Dötsch, Jörg, editor

Published
2019
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10. Medizinische Maßnahmen bei immigrierenden Kindern und Jugendlichen – Aktualisierung vom 28.02.2018: Empfehlungen der Kommission für Infektionskrankheiten und Impffragen sowie der Kommission für Globale Kindergesundheit der DAKJ

Author

Huppertz, H.-I., Kommission für Infektionskrankheiten und Impffragen, Deutsche Akademie für Kinder- und Jugendmedizin, and Kommission für Globale Kindergesundheit, Deutsche Akademie für Kinder- und Jugendmedizin

Published
2018
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17. Diagnose und Therapie von Atemwegsinfektionen (ohne ambulant erworbene Pneumonie) bei ambulant behandelten Kindern ohne schwerwiegende Grunderkrankung: Gemeinsame Empfehlung der Deutschen Gesellschaft für Pädiatrische Infektiologie (DGPI), der Deutschen Gesellschaft für Kinder- und Jugendheilkunde (DGKJ), der Deutschen Akademie für Kinder- und Jugendmedizin (DAKJ) und des Berufsverbandes der Kinder- und Jugendärzte (BVKJ)

Author

Simon, A., Tenenbaum, T., Huppertz, H. I., Trapp, S., Prelog, M., Hufnagel, M., Knuf, M., Rose, M. A., Forster, J., Nicolai, T., Berger, C., Nadal, D., Hübner, J., Berner, R., and Liese, J.

Published
2017
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21. Critical appraisal of RCTs by 3rd year undergraduates after short courses in EBM compared to expert appraisal

Author

Buchberger, B., Mattivi, J.T., Schwenke, C., Katzer, C., Huppertz, H., and Wasem, J.

Subjects
Critical appraisal, evidence-based medicine, randomized controlled trial, training, undergraduates, Special aspects of education, LC8-6691, Medicine
Abstract

Introduction: An essential aim of courses in evidence-based medicine (EBM) is to improve the skills for reading and interpreting medical literature adequately. Regarding the conceptual framework, it is important to consider different educational levels.Aim: Our primary aim was to investigate the applicability of different instruments for the assessment of methodological study quality by 3rd grade students after short courses in EBM. Our secondary outcomes were agreement with expert assessments and student’s knowledge and competences.Methods: We conducted four short courses in EBM of 90 minutes each for health care management and medical students focused on critical appraisal of the literature. At the end, the students assessed five publications about randomized controlled trials (RCTs) using five different instruments; the results were compared to expert assessments.Results: In total, 167 students participated in our EBM courses. Students’ assessments showed a non-systematic over- and underestimation of risk of bias compared to expert assessments with no clear direction. Agreement with expert assessments ranged between 66% to over 80%. Across RCTs, evidence was found that the choice of instrument had an impact on agreement rates between expert and student assessments (p=0.0158). Three RCTs showed an influence of the instrument on the agreement rate (p

Published
2018
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24. Bakterielle Infektionen

Author

Scholz, H., Jüngst, B. -K., Huppertz, H. -I., Schmitt, H. -J., Keller, K. -M., Hufnagel, M., Christen, H. -J., Eiffert, H., Heininger, U., Nadal, D., Lentze, Michael J., editor, Schulte, Franz J., editor, Schaub, Jürgen, editor, and Spranger, Jürgen, editor

Published
2007
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29. Klinisch gesteuerte rationale Borreliose-Diagnostik: Stellungnahme der Kommission für Infektionskrankheiten und Impffragen im Bündnis Kinder- und Jugendgesundheit e. V. (Bündnis KJG).

Author

Knuf, Markus, von Both, Ulrich, Grundhewer, H., Heininger, U., Huppertz, H.-I., Iseke, A., Knuf, M., Korenke, G. Ch., and Müller, A.

Abstract

Copyright of Monatsschrift Kinderheilkunde is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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33. Bakterielle Infektionen

Author

Scholz, H., Jüngst, B.-K., Huppertz, H.-I., Schmitt, H.-J., Keller, K.-M., Hufnagel, M., Christen, H.-J., Eiffert, H., Heininger, U., Nadal, D., Lentze, Michael J., editor, Schulte, Franz J., editor, Schaub, Jürgen, editor, and Spranger, Jürgen, editor

Published
2003
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38. Infektionskrankheiten

Author

Schmitt, H.-J., Hauer, Th., Daschner, F., Hufnagel, M., Scholz, H., Jüngst, B., Huppertz, H.-I., Keller, K.-M., Christen, H.-J., Eiffert, H., Heininger, U., Nadal, D., Forster, J., Kreth, H. W., Schuster, V., Krawinkel, M. B., Lentze, Michael J., editor, Schaub, Jürgen, editor, Schulte, Franz J., editor, and Spranger, Jürgen, editor

Published
2001
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39. Autoimmunkrankheiten

Author

Dannecker, G., Habermehl, P., Zepp, E., Ganser, G., Huppertz, H.-I., Wagner, N., Rieger, C., Michels, H., Truckenbrodt, H., Lentze, Michael J., editor, Schaub, Jürgen, editor, Schulte, Franz J., editor, and Spranger, Jürgen, editor

Published
2001
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47. The crystal structure of NdB6O8(OH)5·H3BO3

Author

Teichtmeister Tobias A., Bernhart Alexander Hugo, and Huppertz Hubert

Subjects
2331227, Physics, QC1-999, Crystallography, QD901-999
Abstract

NdB6O8(OH)5·H3BO3, triclinic, P 1‾ $\overline{1}$ (no. 2), a = 6.8304(7) Å, b = 7.2004(5) Å, c = 12.707(2) Å, α = 95.479(5)°, β = 98.652(6)°, γ = 101.758(5)°, V = 599.7(2) Å3, Z = 2, R gt(F) = 0.0378, wR ref(F 2) = 0.0826, T = 289(1) K.

Published
2024
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48. Wann sind Antikörperbestimmungen im Serum vor oder nach Impfungen sinnvoll und wann nicht?: Stellungnahme der Kommission für Infektionskrankheiten und Impffragen des Bündnis Kinder- und Jugendgesundheit e. V.

Author

Heininger, Ulrich, Kommission für Infektionskrankheiten und Impffragen des Bündnis Kinder- und Jugendgesundheit e. V., von Both, U., Grundhewer, H., Heininger, U., Huppertz, H.-I., Iseke, A., Knuf, M., Korenke, G. Ch., and Müller, A.

Abstract

Copyright of Monatsschrift Kinderheilkunde is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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