Pectin is a plant cell wall polysaccharide made of mainly D-galacturonic acid (GA) subunits. The potency of the filamentous fungus Aspergillus niger to naturally secrete high amounts of pectinases to degrade pectin has been utilized for the industrial production of pectinases.

Political scientist Nicholas Vrousalis (Leiden University) reviews the recent literature on exploitation. He istinguishes between three main species of exploitation theory: (a) teleology-based (including harm and mutual benefit) accounts, (b) respect-based (including mere means, force, rights, and fairness)…

Promotor: G.P. van Wezel

Almost all bacteria are enveloped by a cell wall that provides cellular protection.

Promotor: Prof.dr. G.J. Kroes

This part entails the analysis of an extensive sample of animal bone (c. 30,000 pieces) retrieved from well-defined archaeological contexts of the early period at Tell Sabi Abyad, c. 6800-6200 BC. It comprises aspects of taphonomy, ageing and osteometry, the reconstruction of the local spectrum of domestic…

The dissociative chemisorption of methane on metal surfaces is of fundamental and practical interest, being a rate-limiting step in the steam reforming process. The reaction is best modeled with quantum dynamics calculations, but these are currently not guaranteed to produce accurate results because…

Promotores: A.H. Meijer, H.P. Spaink

On 25 September 2019, Luuk Esser defended his thesis 'De strafbaarstelling van mensenhandel ontrafeld'. The doctoral research was supervised by Prof. C.P.M. Cleiren and Prof. J.M. ten Voorde.

In 2015 the division ‘Migration and Crime’ of the Dutch Society for Criminology has been established to bring together academic researchers that are active in this diverse field with each other and relevant persons and organisations. On March 10 it will organise its first seminar on labour exploitation,…

This project will establish how and why Dutch entrepreneurs participated in exploiting the English, French and Iberian empires.

On 22 June, Anneke Koning defended the thesis 'Return to sender: a multi-method study of guardianship against transnational sexual exploitation of children'. The doctoral research was supervised by Joanne van der Leun, Masja van Meeteren and Johan van Wilsem.

The central question of this Vici proposal is to investigate if, and how actinobacteria exploit life without a cell wall.

Deze onderzoeksgroep richt zich op het thema ondermijning en financieel-economische criminaliteit, in het bijzonder de aanpak ervan op een aantal deelterreinen.

At the Annual Meeting of the Tijdschrift Administratiefrechtelijke Beslissingen (AB) (Administrative Decisions Magazine) on Friday 21 January 2022, the winners of the annotation of 2021 were announced: Demy Jongkind and Annemarie Drahmann, from the Department of Constitutional and Administrative Law,…

Tackling human trafficking has been a priority on international, national and local policy agendas for some decades now. Yet a number of knowledge gaps stand in the way of how the issue is approached. Interdisciplinary research is essential if we want to expand our knowledge to benefit policy and pr…

The aim of this thesis was to study phage infection in Streptomyces, focused on cell wall-deficient cells. Bacteriophages (or phages in short) attach to the cell wall of bacteria after which they replicate and lyse the host cell.

Contraband and forced recruitment: How rebels' exploitation of natural resources can increase their willingness to forcibly recruit children.

The Sun and all the stars in the night sky reside in the Milky Way galaxy. In the at-rest reference frame of the Galaxy, typical stars travel with velocities of about 100-200 kilometres per second.

Het is een wijdverbreid idee dat (post-)middeleeuwse steden een sterfteoverschot hadden en zij slechts in leven konden blijven door de toestroom van migranten; een fenomeen dat bekend staat als het ‘urban graveyard’-effect. Over details valt te twisten, maar duidelijk is dat de stad en de dood dichter…

This thesis is about the study of hydrocarbons via infrared spectroscopy.

Book by Dr. Mariana Françozo resulting from her research into the collection of count Johan Maurits of Nassau-Siegen, governor of the Dutch colony in Northeastern Brazil between 1637 and 1644.

Schatten uit het oude Armenië

In a network- and case-based programme on management, business and entrepreneurship we focus on science-driven companies and exploiting business opportunities created by research.

Nederland ligt in de periferie van het verhaal van menswording. De evolutie van onze familie vindt lang exclusief in Afrika plaats. En, als Europa eenmaal bewoond wordt door mensachtigen, ligt het zwaartepunt ten zuiden van onze streken. Toch heeft ons land een aantal interessante vindplaatsen en vondsten…

The MicroSOS project is designed to bring together academic and industrial partners with different expertises to address challenges that agriculture is facing due to climate change and invests in the development of microbiome-based solutions towards more sustainable agricultural practices.

On dinsdag 26 juni 2018, Linlin Sun defended her doctoral thesis ‘International Environmental Obligations and Liabilities in Deep Seabed Mining’. The doctoral research was supervised by Prof. dr. N.J. Schrijver en Prof. dr. E.C.P.D.C. De Brabandere.

PhD defence

A.F. (Ab) van der Touw (1955) is to become the new Chairman of the Board of Governors of Leiden University. Jet Bussemaker, Minister of Education, Culture and Science (OCW), has appointed him from 1 September 2016 for a period of four years. Van der Touw succeeds Nout Wellink whose term of office comes…

Promotor: F.S. de Boer Co-promotor: P. T. de Gouw

Fundamental understanding of molecular reactions on metal surfaces is important for improving heterogeneous catalysis.

Ce livre est une étude pionnière portant sur l’analyse conceptuelle et la traductibilité des termes de maladie dioula jusqu’ici non abordées par les recherches antérieures. Le Dioula est une langue mandé parlée au Burkina Faso. L’étude présente les représentations de la santé, de la maladie et du corps…

This project explores innovative strategies to counter online extremist content, focusing on integrating traditional content moderation tactics with targeted online interventions. Through research, workshops, and data-driven experiments, we aim to answer: How and when should traditional content moderation…

On the 19th of April, Iris van de Voorde successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Iris on this achievement!

Researchers at LED3 are working together with biopharmaceutical company Galapagos to develop software for use in early drug discovery (funded by NWO). This software is able to design molecules with several simultaneously optimized characteristics and will also take prediction reliability into consideration…

"De Leidsche Flesch" is the study association for Physics, Astronomy, Mathematics and Computer Science students. This includes Media Technology students

In Indigenous Ancestors and Healing Landscapes Jana Pešoutová presents new interpretations of current healing practices in Cuba and the Dominican Republic juxtaposed against the European colonization of the Caribbean after 1492.

EuDEco (Modelling the European Data Economy) is a Coordination & Support Action (CSA) receiving funding from the European Union’s Horizon 2020 programme.

In this thesis,

The Leiden Slavery Studies Association (LSSA) is dedicated to promoting a greater understanding of slavery and post-slavery in any period and any geographical region.

In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.

This series provides a venue for scholarly work—research monographs and edited volumes—that advances our understanding of the history of slavery and post-slavery in any period and any geographical region. It fills an important gap in academic publishing and builds upon two relatively recent developments…