This book closely analyses the rise and fall of Louis XIV's marine insurance institutions in Paris, which were central to the French monarchy's efforts to stimulate commerce, colonial enterprise and economic growth.

On 23 October 2019, Yoram Stein defended his thesis 'Spinoza's Theory of Religion: The Importance of Religion in Spinoza's Thought and Its Implications for State and Society'. The doctoral research was supervised by Prof. P.B. Cliteur and Prof. A.A.M. Kinneging.

How do governments distribute resources across economic sectors during a crisis? And why do some sectors receive more than others? The recent COVID-19 pandemic has highlighted the urgency of these questions. In this paper, we explore the extent to which a political economy…

For the first time, it was shown in living cells how the bacterium E. coli regulates genes that help it survive in a new environment. Biochemist Fatema Zahra Rashid managed to do this using a technique she fine-tuned. Her research into changes in 3-dimensional chromosome structure offers clues for ways…

Roxanne Kieltyka was interviewed for NRC and talks about squaramides, cell cultures and Goldilocks.

Promotor: B. vd Water, T. Schmidt, Co-Promotor: E.H.J. Danen

Organizations often announce their protest activities prior to their implementation to mobilize awareness, recruit supporters, and receive media attention. We are interested in the effectiveness of protest announcements—that is, under what conditions governments make concessions to avoid having an announced…

The work presented in this thesis addresses the role of the locus coeruleus (LC) - norepinephrine (NE) system in various aspects of human cognition, and the modulation of brain state.

Mateo Cohen (research assistant at the Open University of Israel and PhD candidate at Leiden University’s Institute of Political Science) studied arguments articulated by diverse members of the Right-Wing elite in Israel and explains how these views lead to the rejection of a two-state solution and…

The policies relating to language pursued by European monarchies and states have been widely studied, but far less attention has been given to their linguistic and cultural policies in territories outside their own borders.

Jingxian Wang, PhD at ICLON, examined technology integration in primary and secondary education. Defence on 6 July.

Tycho de Graaf has been appointed Professor of Technology and Private Law at Leiden University as of 1 June 2022.

On 29 June 2017, Carl Mair will defend his PhD dissertation “Taking Technological Infrastructure Seriously”. The defence will commence at 13.45 hrs, in the Academy Building of Leiden University, Rapenburg 73. The supervisors are Professor A. Schmidt and Professor G.J. Zwenne.

Destroying proteins from the Golgi apparatus of the cell in a controlled manner. That is the focus of chemist Marta Artola’s pioneering research. By developing a groundbreaking technology to target specific proteins in the Golgi, Artola aims to unlock new ways for drug development. For this ambitious…

On April 26, three separate projects from LIACS Media Technology group members were awarded a

Our annual "Science to Experience" exhibition of student works is hosted by the V2_ Lab for the Unstable Media. This year's theme is "TIME".

It has only recently been discovered that single-celled organisms (bacteria and archaea) also have histones—proteins that structure DNA. Now, Leiden PhD candidate Samuel Schwab has found that the histones in these organisms are much more diverse than previously thought. Schwab and his colleagues describe…

A tenacious postdoc researcher persuaded Professor Marc Koper to research the oxygen reduction reaction. In Koper's eyes, there was little of interest there. But they promptly discovered a whole new way to improve fuel cells on hydrogen and oxygen. Their article appeared in Nature Catalysis on 07 Ju…

On 7 May 2020, Jolanda van der Vliet defended her thesis 'The International Legal Protection of Environmental Refugees. A human rights-based, security and State responsibility approach'. The doctoral research was supervised by Prof. N.J. Schrijver and Prof. J.J.C. Voorhoeve.

Reducing greenhouse gas emissions is one of the most pressing challenges that humanity faces in the coming decades.

Scattering of light in the presence of nano-structured materials, i.e. with features in the order of the wavelength of the light or smaller, reveals details of how light interacts with matter at the nanoscale.

Particles are omnipresent in biopharmaceutical products. In protein-based therapeutics such particles are generally associated with impurities, either derived from the drug product itself (e.g. protein aggregates), or from extrinsic contaminations (e.g. cellulose fibers).

Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn, Co-promotor: Dr. M.J.M. Schaaf

At high doses, drug candidate BIA 10-2474 binds not only to the protein that it targets, but to other proteins as well. It thus deactivates proteins that are involved in the metabolism of nerve cells. This is what an international group of researchers from Leiden University and Erasmus MC, among others,…

On February 24 2022, the Technology group organized a GTGC Tech Talk. During this meeting Anna-Lena presented her first PhD paper "Bringing the Social Back in: Big Science Collaborations as Social Spaces of Strategic Action".

On Wednesday the 1st of December, the thematic area on technology of GTGC organized its first research seminar, by Anna-Lena Rüland and Babak Rezaeedaryakenari. James Shires, together with his colleague Max Smeets at ETH Zurich, presented on their project "Cyberspace and (In)stability: The Structural…

At the division of BioTherapeutics, Amanda Foks, Bram Slütter and Ilze Bot have obtained a €4 million research grant from the HORIZON 2022 EIC Pathfinder Challenge “Cardiogenomics”, entitled “B-specific: B-cell related gene and protein markers with prognostic and therapeutic value for CVD”.

When you think of physics, do you think only of complicated formulas? You’re not the only one. Therefore, every year, the Leiden Insitute of Physics organises the LION Image Award to show another side of physics: beautiful images about intriguing science. The winner of the 2022 photo competition captured…

Opening van het Quantum Delta NL (QDNL) Talent & Learning Centre (TLC) Leiden-Delft.

Cookware handles, electrical plugs, brake pads. Unlike other plastics, these ‘thermosets’ cannot simply be melted down and reshaped, making them difficult to recycle. Chemist Roxanne Kieltyka and her team are now exploring a way to make these materials recyclable, potentially transforming the way we…

Seasonal influenza vaccines provide protection against matching influenza A virus (IAV) strains mainly through the induction of neutralizing serum IgG antibodies. However, these antibodies fail to confer a protective effect against mismatched IAV. This lack of efficacy against heterologous influenza…

WORLDING AMERICA researches how ‘play’ has been a key force in the past and present process of creating America as a coherent and hegemonic ‘world,’ from 1503 to the present. ‘Play’ is an activity linked to change, serious even when frivolous, potentially transgressive even when rule-bound. Play intersects…

Is online radicalisation is an analytically useful concept when discussing contemporary cases of terrorism?

On 19 December 2019, Reza Eftekhar defended his thesis 'The Role of the Domestic Law of the Host State in Determining the ratione materiae Jurisdiction of Investment Treaty Tribunals: The Partial Revival of the Localisation Theory'. The doctoral research was supervised by Prof. E. de Brabandere.