This PhD-thesis analyses the relationship between the parties’ choices in the CPB Netherlands Bureau for Economic Policy Analysis’ assessments of the election manifestos and coalition agreements over the period 1986-2017, and tries to explain this relationship.

How did free agents oppose the monopolies held by the VOC and WIC in court?

On Thursday 30 May 2024 Corrie van Maris successfully defended a doctoral thesis and graduated.

This book offers a detailed analysis of social policy in Ecuador, covering its evolution over the past four decades. It examines how social relations and institutional frameworks have influenced concepts of well-being, the implemented policies, and the outcomes achieved.

More effective diagnosis and prognosis than ever, with less intrusive medical screening? Scientists from Leiden, Delft and Rotterdam are well on the way to achieving just that. Imaging professors Serge Rombouts and Wiro Niessen are working on an extremely rigorous, self-learning adviser for radiologists.…

This project traces how, why, and under what circumstances scholars invoked the trope of “dogmatism,” especially in controversies. Relevant controversies from various fields, periods, and countries will be subjected to in-depth rhetorical analysis.

Martin van Hecke published an article in Nature, together with physicists from AMOLF and UvA. They have developed a metamaterial that folds itself up, even in multiple steps. Van Hecke appeared in the following media.

This thesis is concerned with the constitution of chiral responsive matrix assemblies that may undergo light-driven conformational changes and self-select vibrations to develop vibronic states for driving semi-classical coherent transfer with nearly 100% yield in a lossless NCAP process.

Drawing on a broad array of sources, this project examines modern retrievals of Bacon’s idols, thereby testing Justus von Liebig’s intriguing observation, back in 1863, that Bacon’s name lived on mainly in mottos or stereotypical phrases. More importantly, it examines the rhetorical purposes served…

In comparing a selection of 18th-century histories to a representative sample of 19th-century histories of science, this project inquires: Which early modern vices persisted into the 19th century and to what extent were those vices embodied in anecdotes, conveyed through commonplaces, or symbolically…

This project analyzes to what extent hodegetical textbooks relied on each other in warning their readers against vicious habits, how much continuity their catalogs of vice displayed, and to what extent vices that persisted throughout the 18th and 19th centuries were associated with easy-to-remember…

What evaluative languages (errors, mistakes, vices, etc.) did book reviewers employ? To what extent and on what occasions did they invoke early modern vices? And to what extent did this differ across fields or change over the course of the century?

If idioms employed in codes of conduct could be as idiosyncratic as examples suggest, then to what extent did early modern language of vice, too, persist in this genre?

Who holds rights to Greenland’s surrounding waters and natural resources? Which interests are at stake and for whose benefit? We put these questions to Hilde Woker, who specialises in the law of the sea in the Arctic.

Jan de Vetten brengt zijn promotieonderzoek ook uit in boekvorm. ‘In de ban van goed en fout’ beschrijft voor het eerst - op basis van archiefonderzoek en interviews - op samenhangende wijze de bestrijding van de CP en CD, en ook de reactie daarop van die partijen. Waarom werden ze zo fel werden bestreden?…

In this thesis, the researcher developed a nanosystem based on the metallophilic Interaction between cyclometalated complexes.

Despite the fact that gold nanoparticles (GNPs) are one of the most studied nanoparticles, there is still a necessity for new approaches allowing for effective protective coating to enable wider use of GNPs in biomedical applications.

A tantalizing concept that has emerged in our recent research is binding kinetics. An important parameter is residence time (RT), a direct reflection of how long a drug stays bound to its target. This parameter is of crucial importance, because drug action lasts only as long as the receptor-ligand complex…

The Leiden Science Young Talent Award is awarded yearly to a student who completed their bachelor’s degree with an excellent thesis.

In de uitzending van Café Kockelmann op18 april werd aandacht besteed aan twee belangrijke politieke thema’s: het vertrek van Pieter Omtzigt na 21 jaar uit politiek Den Haag en de roerige totstandkoming van de voorjaarsnota. Wim Voermans, hoogleraar Staatsrecht, was te gast in de uitzending.

Reijer Passchier, hoogleraar digitalisering en de democratische rechtsstaat aan de OU en universitair docent staatsrecht in Leiden, sprak op 26 mei voor de Commissie Digitalisering van de Eerste Kamer, tijdens een deskundigenbijeenkomst over de weerbaarheid van de democratische rechtstaat in tijden…

Reijer Passchier, universitair docent Staatrecht in Leiden en hoogleraar Digitalisering en de democratische rechtsstaat aan de Open Universiteit, pleit voor de ontwikkeling van europese techbedrijven, waarbij europa zijn soevereiniteit weet te behouden. Hij waarschuwt vooral niet het ‘destructieve gigantisme-model…

The Advisory Council on International Affairs (AIV) has issued an opinion on possibilities for reform within the European Union (EU) in the area of Common Foreign and Security Policy (CFSP), the EU budget, and protecting the rule of law.

Landen proberen steeds strengere maatregelen te nemen om minder aantrekkelijk te worden voor asielzoekers. Mark Klaassen, universitair docent vreemdelingenrecht, noemt het Europese asielbeleid in de Volkskrant ‘een race naar beneden.’

Dat banken en de belastingdienst vanzelfsprekend voorrang hebben als schuldeiser bij faillissementen is achterhaald, concludeert Ruben van Uden, universitair docent en promovendus, in zijn proefschrift. Hij vertelt erover bij BNR: ‘Het is niet meer te rechtvaardigen.’

Leiden University will be conferring three honorary doctorates in its special anniversary year. They will be awarded to Eliot Higgins, truth finder and founder of Bellingcat, Bonnie Honig, expert in feminist theory and legal theory, and Kelly Chibale, professor of organic chemistry, who works on prevention…

De roep om regie op Digitalisering en kunstmatige intelligentie wordt steeds luider. Reijer Passchier, universitair docent staatsrecht en hoogleraar digitalisering en de democratische rechtsstaat, stelt in Trouw dat dit belangrijke thema nu tussen ‘wal en schip dreigt te vallen, omdat niemand in Den…

Het demissionair kabinet houdt publiekelijk vol dat de klimaatdoelen voor 2030 een streefdoel zijn en geen harde juridisch afdwingbare verplichting. Ambtenaren van het Ministerie van Financiën waarschuwen voor aanzienlijke financiële risico’s als die doelen niet worden gehaald. Wim Voermans, hoogleraar…

Veel overheidsorganisaties hebben nog te weinig kennis van de Wet open overheid (Woo), ‘wat zorgt voor frustratie bij verzoekers en onzekerheid bij derden’, zegt Annemarie Drahmann, universitair hoofddocent Bestuursrecht en Woo-expert in iBestuur.

De formatie sleept voort en de roep om een minderheidskabinet klinkt luider. Staatsrechtgeleerde Wim Voermans, waarschuwt in een recent opiniestuk in de Volkskrant dat zo’n constructie instabiel is en de kans op een nieuwe kabinetsval vergroot.

Promoting academic equity for students with ADHD through evidence-based accommodations and inclusive teaching methods in higher education.

Op donderdag 17 april 2025 neemt prof. dr. Marco Mostert, Hoogleraar Middeleeuwse Geschiedenis aan de Universiteit Utrecht afscheid.

Promotor: Prof.dr. B.R. Katzy, Co-promotor: R. Ortt

Promotor: Prof.dr. D. Bouwmeester, Co-promotor: M.P. van Exter

Promotores: E. van Dijk, G.R. de Snoo. Co-promotor: H. Staats

This project tries to explain the persistence of this cultural repertoire by zooming in on (1) interaction between idioms (cultural repertoires) available to scholars at certain points in time, (2) mechanisms that help transmit repertoires across time and place, and (3) rhetorical purposes for which…

What is the role of emotion regulation in coping with interpersonal feedback?

AI has huge societal and economic potential and is widely used. But it also brings challenges: how do we combine human values with AI, how do we make AI more transparent and understandable, and what can AI and human cognition learn from each other, for example about language learning?

Review Committees, with cross-boundary experts, are invited to assess our research and education programmes.

In September 2025, Leiden University submitted its self-evaluation for the mid-term review of the Social and Behavioural Sciences Sector Plan. This self-evaluation provides an overview of the progress made within Leiden since the start of the SSH Sector Plans and reflects on how FSW and FGGA contribute…

The roles of shame, guilt and social access in adolescent aggression

In this conversation-analytic study, the authors analyze conversations between researchers from different disciplines and community members to examine relationship building in real life. This is an open access article under the Creative Commons By license.

In 2016, Dutch University Medical Centres (UMCs) developed the self-evaluation tool based on the PhD Competence Model. Our partners at Utrecht University are making a digital version of the tool available free of charge for our PhD candidates at Leiden University, including for candidates who are not…

Promotor: Prof.dr. E. F. van Dishoeck, Co-promotor: A. N. Heays

Het Empower your PhD-project wil bereiken dat Leidse promovendi meer zelfregie krijgen over hun persoonlijke en loopbaanontwikkeling.

Metaphysics as Praxis: Rereading Dogen's Metaphysics Through Deleuzian Pragmatism and Pratimutpada