In this research note, Van der Does & Kantorowicz aruge that citizens that tend to experience political exclusion are often more supportive of direct and participatory forms of decision-making.

Promotores: Prof.dr. G.A. Persoon & Prof. dr. H.H. de Iongh

To what extent are there differences between countries in and outside the European Union and the Schengen area in the level of crimmigration, the merger between migration control and crime control, and to what extent can these differences be explained by the way in which state and non-state actors in…

Special Issue Workshop Res Publica

PhD defence

Next April, Leiden will host the seventh annual international Survival Analysis for Junior Researchers conference (SAfJR2018). This three-day event is aimed at career-young statisticians with an interest in the application and development of time-to-event analysis and related topics. The conference…

The dental remains of 25 enslaved Africans from the site of Newton's Plantation, on Barbados, were subjected to isotope analysis. Previous research had pointed out that the locally born individuals were subjected to high concentrations of lead poisoning. A new study, done by Dr Jason Laffoon among others…

Sevil Cakir-Kilincoglu defended her thesis on 18 December 2019

The aim of the project is to contribute to the process of archive formation ongoing in Post-Apartheid South Africa through the inclusion of photographs that have been either unacknowledged or excised from the national canon.

The emissions of the Chinese industrial sector alone comprise 24.1% of global emissions (7.8 GtCyr−1 in 2015). This makes Chinese industrial emissions of unique national and international relevance in climate policy. This study reports a literature survey that quantitatively describes the evolution…

Social relationships of students are important. Especially for students with problem behavior. How can a teacher support students in their social relationships via their own interactions with students? A lot, as is shown by a meta-analyses of Hinke Endedijk. She assessed almost 300 studies about teacher-student…

The research programme Statistical Science is concerned with the analysis and interpretation of masses of data, the quantification of uncertainty using probability models, and the development and benchmarking of algorithms and methods with these aims.

Speed skating coach and human movement scientist Jac Orie has been capturing all details about the performance of 'his' skaters for fifteen years. Thanks to data scientist Arno Knobbe, who calculates the collected data in new ways, Orie can train his team even smarter in the run-up to the Olympic Winter…

The aim of this study is to further develop the Open Science Monitor, which started as a pilot study.

What are trait-trait relationships in wetlands? To what extent the so-called leaf economics traits deviate from terrestrial ecosystems? How traits specific to wetland plant relate to plant strategies? What’s the relationship between wetland plant traits to the ecosystem functioning (e.g. productivity,…

Yuxi Nie defended her thesis on 15 October 2019.

This dissertation takes a technological approach to ceramic production and provides a fine-grained view of the circum-Caribbean region.

Embryonic stem cells have the remarkable ability to develop into any type of cell. On their way to become for example a liver or a heart cell, they must repeatedly decide between alternative developmental paths. How they make these decisions is largely unknown. An international team of biophysicists…

A former employee of Leiden University breached academic integrity. This is the conclusion of the University’s Academic Integrity Committee in its recommendation to the Executive Board on 11 January 2019.

Networks play an important role in various studies, ranging from analysing epidemics in human populations to studying connectivity in electrical circuits. Vincent Traag contributes to the development of igraph, a popular package for analysing large networks.

Due to technological and societal developments, we are being flooded with more information than our brains can process. How does this affect our decision-making, both as individuals and as a society? And can we learn to make better choices? This is what Lotte van Dillen will explore with her profess…

This dissertation focuses on developing new mathematical and statistical methods to properly represent time-varying covariates and model them within the context of time-to-event analysis.