TY  - JOUR
A1  - Nunez Valdez, Maribel
A1  - Efthimiopoulos, Ilias
A1  - Taran, Michail
A1  - Mueller, Jan
A1  - Bykova, Elena
A1  - McCammon, Catherine
A1  - Koch-Müller, Monika
A1  - Wilke, Max
T1  - Evidence for a pressure-induced spin transition in olivine-type LiFePO4 triphylite
JF  - Physical review : B, Condensed matter and materials physics
N2  - We present a combination of first-principles and experimental results regarding the structural and magnetic properties of olivine-type LiFePO4 under pressure. Our investigations indicate that the starting Pbnm phase of LiFePO4 persists up to 70 GPa. Further compression leads to an isostructural transition in the pressure range of 70-75 GPa, inconsistent with a former theoretical study. Considering our first-principles prediction for a high-spin to low-spin transition of Fe2+ close to 72 GPa, we attribute the experimentally observed isostructural transition to a change in the spin state of Fe2+ in LiFePO4. Compared to relevant Fe-bearing minerals, LiFePO4 exhibits the largest onset pressure for a pressure-induced spin state transition.
Y1  - 2018
U6  - https://doi.org/10.1103/PhysRevB.97.184405
SN  - 2469-9950
SN  - 2469-9969
VL  - 97
IS  - 18
PB  - American Physical Society
CY  - College Park
ER  - 
TY  - JOUR
A1  - Wetzel, Anna-Jasmin
A1  - Koch, Roland
A1  - Preiser, Christine
A1  - Müller, Regina
A1  - Klemmt, Malte
A1  - Ranisch, Robert
A1  - Ehni, Hans-Jörg
A1  - Wiesing, Urban
A1  - Rieger, Monika A.
A1  - Henking, Tanja
A1  - Joos, Stefanie
T1  - Ethical, legal, and social implications of symptom checker Apps in primary Health Care (CHECK.APP)
BT  - protocol for an interdisciplinary mixed methods study
JF  - JMIR Research Protocols
N2  - Background: 
Symptom checker apps (SCAs) are accessible tools that provide early symptom assessment for users. The ethical, legal, and social implications of SCAs and their impact on the patient-physician relationship, the health care providers, and the health care system have sparsely been examined. This study protocol describes an approach to investigate the possible impacts and implications of SCAs on different levels of health care provision. It considers the perspectives of the users, nonusers, general practitioners (GPs), and health care experts. 

Objective:
We aim to assess a comprehensive overview of the use of SCAs and address problematic issues, if any. The primary outcomes of this study are empirically informed multi-perspective recommendations for different stakeholders on the ethical, legal, and social implications of SCAs.

Methods: 
Quantitative and qualitative methods will be used in several overlapping and interconnected study phases. In study phase 1, a comprehensive literature review will be conducted to assess the ethical, legal, social, and systemic impacts of SCAs. Study phase 2 comprises a survey that will be analyzed with a logistic regression. It aims to assess the user degree of SCAs in Germany as well as the predictors for SCA usage. Study phase 3 will investigate self-observational diaries and user interviews, which will be analyzed as integrated cases to assess user perspectives, usage pattern, and arising problems. Study phase 4 will comprise GP interviews to assess their experiences, perspectives, self-image, and concepts and will be analyzed with the basic procedure by Kruse. Moreover, interviews with health care experts will be conducted in study phase 3 and will be analyzed by using the reflexive thematical analysis approach of Braun and Clark.

Results: 
Study phase 1 will be completed in November 2021. We expect the results of study phase 2 in December 2021 and February 2022. In study phase 3, interviews are currently being conducted. The final study endpoint will be in February 2023. 

Conclusions: 
The possible ethical, legal, social, and systemic impacts of a widespread use of SCAs that affect stakeholders and stakeholder groups on different levels of health care will be identified. The proposed methodological approach provides a multifaceted and diverse empirical basis for a broad discussion on these implications.
KW  - symptom checker apps
KW  - self-diagnosis
KW  - self-triage
KW  - digitalization in
KW  - primary care
KW  - general practitioners
KW  - symptom checker
KW  - app
KW  - mobile app;
Y1  - 2022
U6  - https://doi.org/10.2196/34026
SN  - 1929-0748
VL  - 11
IS  - 5
PB  - JMIR Research Protocols
CY  - Toronto
ER  - 
TY  - JOUR
A1  - Müller, Monika
A1  - Sowa, Oliver
ED  - Denz, Rebekka
ED  - Rudolf, Gabi
T1  - Ein Blick hinter die Schultüre?
BT  - Französischübungen aus Altenkunstadt
JF  - Genisa-Blätter
KW  - Genisa
KW  - Jüdische Studien
KW  - Geniza
KW  - Jewish studies
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-77357
SP  - 135
EP  - 143
ER  -