On March 12th, Jonathan Brown succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Jonathan on this great result.

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…

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.

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…

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

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

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

Sarah Giest, Assistant Professor at Leiden Univeristy, researched the topic of regulatory and market structures that affect nudge implementation by private actors, captured by the ‘budge’ idea.

Cancer is considered the silent pandemic of the 21st century and the second leading cause of death worldwide.

The term “Lone Actor” has been applied to a variety of violent individuals who are thought to act out of ideological motivations using terrorist tactics.

Streptomyces bacteria are a valuable source of natural products, many of which are used in the clinic or in biotechnology.

This article assesses Russian rhetoric toward Ukraine from 2004 to 2019 by analyzing statements by the Russian Ministry of Foreign Affairs.

This study seeks to analyse how job stress could be the result of performing administrative tasks

Promotor: Prof.dr. R. Verpoorte, , Co-Promotor: Young Hae Choi

The researchers explore how instructional risk communication can support public safety during nuclear emergencies.

Relevant safety issues are associated with hazardous materials transportation, especially when transport routes cross populated areas. This article for the Journal of Loss Prevention in the Process of Industries analyses a 2015 accident with a freight train in Tilburg, comparing it to the Viareggio…

Andrea Bartolucci is Assistant Professor at Institute of Security and Global Affairs. In this study, the scholars adopted a multidisciplinary approach to investigate wildfire risk in Van Chan district in northern Vietnam, a region where official data are sometimes difficult to collect or inconsisten…

What workflow of non-destructive techniques provides accurate, valuable data to improve our understanding of Caribbean archaeological landscapes? How were Amerindian settlements configured?

Streptomyces present a valuable platform for natural product discovery. Lugdunomycin is a novel angucycline-derived polyketide from Streptomyces sp QL37, with unprecedented skeleton and antimicrobial activity.

This article provides an in‐depth assessment of lone actor terrorists’ attack planning and preparation.

PhD defence

What should the EU do to support Ukraine, Belarus and Moldova? How can the European Union adapt its policies towards these countries in a very difficult and challenging geopolitical context?

This book, written by two representatives of Leiden Law School, describes the framework of the European Insolvency Regulation (recast) (‘EIR Recast’), in force since June 2017.

Reconstructing interactions between communities in and out of Cyprus in the early third millenium BC

In several Mediterranean regions archaeological sites have been mapped by fieldwalking surveys, producing large amounts of data. These legacy site-based survey data represent an important resource to study ancient settlement organization. Methodological procedures are necessary to cope with the limits…

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…

Archaeologist Jason Laffoon was awarded an NWO Vidi grant for an innovative investigation into ancient migrations in the western Caribbean. The innovative character of this research project lies in the wide-scale application of isotope analysis and isotope mapping. ‘We aim at further developing methods…

What types of construction materials are used in the Global South, where are they, and what levels of societal services do they support? How will material use evolve under different development pathways and paradigms? What are these materials' environmental and societal impacts now and in the future,…

Violence during war often involves upswings and downturns that have, to date, been insufficiently explained. Why does violence at a particular point in time increase in intensity and why do actors in war decrease the level of violence at other points? Duyvesteyn discusses the potential explanatory variables…

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.

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.