Photo of Dr. Sabine  Müller
Dr. Sabine Müller
Sektion A: Geisteswissenschaften und Bildungsforschung | Wissenschaftliche Karriereentwicklung
Chausseestraße 111
10115 Berlin
Tel.: 030 / 20 60 49 - 686

Spokespersons and Section officers


Dr. Gitta Heinz
German Rheumatism Research Center Berlin (DRFZ)

Gitta Heinz studied Molecular Medicine at the University Ulm and the Charité University Medicine Berlin and graduated 2009 with a Master’s thesis at the German Rheumatism Research Center (DRFZ) Berlin. After 6 months as visiting researcher at the Karolinska Institute in Stockholm (Sweden) she started her PhD at the Helmholtz Zentrum München, which she completed in 2015. She investigated the role of an RNA-binding protein in T helper cell activation. Since 2015 Gitta Heinz is working as postdoctoral researcher at the DRFZ Berlin. For her, being part of the Leibniz Postdoc Network means exchange with other Postdocs and shaping postdoctoral career development within the Leibniz Association.

Dr. Lydia Repke
GESIS – Leibniz Institute for the Social Sciences (GESIS)


Lydia Repke studied Political and Administrative Sciences at the Universität Konstanz, Germany, including a research stay at Boğaziçi Üniversitesi in Istanbul, Turkey. She graduated from the double master's degree program European Master in Government of the Universität Konstanz and the Universitat Pompeu Fabra in Barcelona, Spain, where she afterwards also obtained her doctor's degree with a focus on cultural psychology (2017). Throughout her studies, she was funded by the German Academic Scholarship Foundation. Since 2018 she has been working on the comparability of measurement instruments and equivalence testing at GESIS - Leibniz Institute for the Social Sciences in the teams "Cross-Cultural Surveys" and "European Social Survey." Together with her colleagues of the Leibniz Postdoc Network, Lydia wants to work on creating equal rights and opportunities across all Leibniz institutes.

Section officers

A - Humanities and Educational Research

Dr. Anne Mucha
Institute for the German Language (IDS)

Anne Mucha studied Linguistics, Comparative Literature and Psychology at the University of Potsdam and Lund University, and obtained her Ph.D. in General Linguistics from the University of Potsdam in 2015. Since 2016 she is employed as a postdoctoral researcher at the Institute for the German Language in Mannheim and is very much looking forward to representing the Humanities in the Leibniz Postdoc Network.

Dr. Yiu-Kang Hsu
German Mining Museum (DBM)


Yiu-Kang Hsu has obtained a DPhil degree in archaeological science from the University of Oxford. He specialises in archaeometallurgy of ancient China and the Eurasian steppe, with a particular focus on the scientific analysis (chemistry and isotope) of production debris and metal alloys. He is currently a postdoctoral associate in the German Mining Museum researching Iron Age copper production in China, Mongolia, and the Russian Far East. His anticipation for the Leibniz Postdoc Network is to provide a platform through which postdoctoral researchers may develop interdisciplinary research and widen personal academic networks as young scientists.

B - Economics, Social Sciences, Spatial Research

Dr. Johannes Breuer
GESIS – Leibniz Institute for the Social Sciences (GESIS)


Johannes Breuer studied media studies at the University of Cologne and received his Ph.D. in psychology also from the University of Cologne. He works as a postdoc in the team Data Linking & Data Security at GESIS – Leibniz Institute for the Social Sciences. His research interests include the use and effects of digital media, the methods of media (effects) research, data management, and open science. For him, being involved in the Leibniz Postdoc Network represents an exciting opportunity to network with other postdocs across institutes and disciplines, and to discuss topics of common interest for postdocs, such as working conditions or career paths.

C - Life Sciences

Dr. Mathias Riehn
Bernhard Nocht Institute for Tropical Medicine (BNITM)


Mathias Riehn was born and raised in Mecklenburg. After his professional training as a lab technician at the Charité, he started to study at the FU Berlin and graduated in molecular and cell biology. In his Master thesis, he investigated the role of regulatory T cell on the course of autoimmune hepatitis. Fascinated from T cell regulation he went to the Helmholtz Centre for Infection Research in Braunschweig to unravel the T cell response to neoantigens in the lower respiratory tract. He received a doctorate from the Medical School Hannover and went to Hamburg to the Bernhard-Nocht-Institute for Tropical Medicine to gain insights on T cell regulation in Malaria. He joints the Leibniz PostDoc initiative from the first meeting on, to together identify problems, find solutions and to improve working conditions and prospects of young scientists.

Dr. Mary-Ann Blätke
Leibniz Institute of Plant Genetics and Crop Plant Research (IPK)


Mary-Ann Blätke studied biosystems engineering at the Otto-von-Guericke University in Magdeburg, where she afterwards obtained her doctor's degree by developing a modular modelling framework for biomodel-engineering called BioModelKit. In 2016, she joined as a postdoctoral researcher the Leibniz Institute of Plant Genetics and Crop Plant Research in Gatersleben supporting the working group for network analysis and modelling with her expertise in computational biology. Jointly with her colleagues in the Leibniz Postdoc Network, she wants to increase the visibility of the Postdoc initiative and establish a Leibniz Postdoc Identity.

D - Mathematics, Natural Sciences, Engineering

Dr. Hans Höft
Leibniz Institute for Plasma Science and Technology (INP)

Hans Höft was born in Wolgast (Pomerania), Germany, in 1985. He received his M.Sc degree and Ph.D degree in physics from Ernst Moritz Arndt University of Greifswald, Germany, in 2011 and 2015 respectively. His Master's thesis was on characterization of pulsed dielectric barrier discharges. As a Ph.D Researcher at the INP Greifswald, he continued his work on pulsed discharges, focussing on the investigation of fast breakdown processes. He currently works as a postdoc at the Leibniz Institute for Plasma Science and Technology e.V. (INP Greifswald), Germany. His motivation to join the Leibniz postdoc network is bringing people with similar problems together, find and propose solutions, and thus improve the working conditions for postdocs in Germany.

Dr. Anett Hoppe
German National Library of Science and Technology (TIB)

Anett Hoppe received her Ph.D. in Computer Science from the Université de Bourgogne-Franche Comté in Dijon, France in 2016. She then spent a year working in the IT Security industry before joining the Leibniz Information Centre for Science and Technology (TIB, Hannover) in May 2017. The Leibniz Postdoc Network for her is an opportunity to meet and connect to postdocs beyond her own research domain and institute. Furthermore, she looks forward to supporting others (and herself) in this exciting period of their individual career path.

E - Environmental Sciences

Dr. Silvia Madeddu
Potsdam Institute for Climate Impact Research (PIK)


Silvia Madeddu is a postdoctoral researcher at PIK and her research focuses on decarbonisation of energy-intensive industries. Silvia holds a Master Degree in Science from the University of Padova, Italy, and a PhD in Materials Science and Engineering from the University of Sheffield, United Kingdom. After completing the Ph.D., she worked for a company as Chief Scientist, specialising on the development of Carbon Capture and Utilisation technologies.

Financial Officer

Dr. Glòria Martrus Zapater
Heinrich Pette Institute, Leibniz Institute for Experimental Virology (HPI)


Glòria Martrus Zapater was born in Barcelona (Spain) in 1983. She completed her master degrees at the Universitat de Barcelona in 2007, focusing on constructing adenoviral-derived vectors to fight pancreatic cancer. She moved for her thesis to the Irsicaixa AIDS Research Center (Badalona, Spain) where she studied the viral genome recoding of HIV-1 and its impact on viral replication. Currently, she is working at the Heinrich Pette Institute, Leibniz Institute for Experimental Virology (HPI, Hamburg) analyzing HIV-1 latency mechanisms and human liver immunology.