Calamus javensis is polymorphic. Morphometry and molecular approach resulted in all names used in the complex are regarded as synonyms of C. javensis except C. tenompokensis, which is retained as a distinct species. One variety is here recognized, C. javensis var. polyphyllus (including C. acuminatu…

What socio-cultural transformations did indigenous communities in the Lesser Antilles undergo from the late precolonial to the early colonial period in response to Amerindian­ European-African cultural encounters? How did Amerindian populations realign themselves in response to the colonisation…

The use-wear analysis of domestic implements provided new insights of the Single Grave Culture population in the Netherlands.

‘There’s a lot of evaluation in the Netherlands, but this doesn’t always lead to change,’ says Wout Broekema, Assistant Professor of Crisis Governance at the Institute of Security and Global Affairs. Learning from a crisis is complicated, but experts can help.

Are predictive archaeological maps a reliable tool to play an important role in the spatial planning? One of the goals of this project was to develop best practices for the production and application of the models.

A new study published in Archaeometry describes the unexpected results obtained from analyses of five human teeth discovered in a ritual cache at an enslaved African plantation site on the island of Saba in the Caribbean.

Can a virtual character’s friendly non-verbal responses stimulate eye-contact in individuals with varying levels of social anxiety?

New funding allows IBL-researcher Herman Spaink to purchase a measurement device for more studies on human diseases such as cancer and tuberculosis using zebrafish as the model system.

What are the possibilities of converting biowaste streams into value added products? What current and future technologies will enable this transition with minimal environmental and economic costs? The researchers in H2 steel project will enable the transition of sewage sludge into green hydrogen, steel…

Promotor: A. Doelman, Co-promotores: P.J.A. van Heijster; A. Zagaris

In this project, researchers from computer science, law, psychology, and public administration research in practice how artificial intelligence (AI) can be leveraged to make decision-making in the security domain more effective, while also keeping it safe and accountable.

Italian nurse Daniela Poggiali was arrested and convicted of murdering two hospital patients in 2014. Her case attracted the attention of Leiden statistician Richard Gill. After his investigation, together with an Italian colleague, Poggiali was acquitted last autumn. Together with fellow statisticians,…

Beyond the immediately visible plenum, parliaments are highly complex institutions. They work through various venues in which decisions are prepared or even taken. The two main institutions in this regard are parliamentary party groups, which comprise legislators who are elected under the same party…

In this dissertation a large corpus of letter signs and texts gathered during fieldwork in Niger, and to a lesser extent Mali and Burkina Faso is used to show the graphemic diversity of the traditional script of the Tuaregs, tifinagh, and to analyze the orthographic system.

Promotor: Prof.dr. J.N. Kok, Co-promotor: Dr. A.J. Knobbe

Promotor: W.T. de Groot

Death, fire and identity in North-West Europe

The Microscopy Unit houses, maintains and coordinates most of the microscopy equipment of the IBL. The available equipment ranges from conventional light and fluorescence microscopes, to confocal laser scanning and electron microscopes. In addition, infrastructure is available for histology, including…

The Patriot behind the pot tells the story of pottery, people and politics in the Netherlands during a time of great revolutions -revolutions both in a political and industrial sense.

This dissertation presents four separate chapters, all striving towards the same goal: to understand dynamic phenomena occurring in dynamic networks and to explore the emergence of equilibrium in a broad sense.

On 29 June 2017, Doris Dull-Zessner defended her PhD dissertation “Value Congruence in a Multinational Corporation”. The supervisors are Professor J.A.A. Adriaanse and Professor J.I. van der Rest.

Wout Broekema highlights how organisations not only learn from crises but also forget, losing crucial knowledge and practices over time.

Promotor: J. Aarts

The main objective of this thesis was to develop clinically relevant survival models for patients with high-grade soft tissue sarcoma of the extremities, in particular the development and validation of prediction models for use in clinical practice.

Principles of Functional Analysis applied to Dutch Neolithic Assemblages.

As of 1 June 2018 Olaf van Vliet has been appointed as Professor of Comparative Welfare State Analysis at Leiden University. The Endowed Chair in Comparative Welfare State Analysis is supported by Instituut Gak. This chair is embedded in both the Department of Economics (Leiden Law School) and the Institute…

In 2019 UNICEF published the situation analysis of children and adolescents in the Caribbean Netherlands, commissioned by the Dutch Ministry of Interior and Kingdom Relations. It is a follow-up to the first round of situation analysis on children’s rights in the Caribbean Netherlands, which was completed…

This project looks at the ways in which youth in southern Nigeria navigate their lives in a context of experiencing long-term socioeconomic uncertainty and political insecurity (duress).

For hundreds of years, the island of Sri Lanka was a crucial stopover for people and goods in the Indian Ocean. For the Dutch East India Company, it was also a crossroads in the Indian Ocean slave trade. Slavery was present in multiple forms in Sri Lanka—then Ceylon—when the British conquered the island…

A biographical approach to material cultural interactions between Caribbean communities and Europeans across the historical divide (AD 1000-1800)

Whether a microbe is beneficial or harmful to a plant can now be predicted with high accuracy thanks to bacLIFE. This bioinformatic tool with an intuitive interface makes it much easier to unlock the secrets of bacterial genomes. A group of Leiden biologists presented it in Nature Communications.

This publication aims at the analysis of the performance of a corpus of Fongbe stories that I collected in three villages in the south of Benin in 1976 and 1977. The corpus consists of 37 stories (57.000 words). The stories aim at children’s education.

Une étude archéo-anthropologique de la céramique des sociétés caribéennes multiculturelles de la période précoloniale à nos jours