Utilization of plant-originated products as new antibiotics

Can the pink-pigmented microbe Methylobacterium extorquens be genetically engineered to convert the sustainable raw material methanol into antibiotics?

Electoral Systems and Turnout: Evidence From a Regression Discontinuity Design. In this article, published on the website SAGE research methods, authors Jaroslaw Kantorowicz and Tobias M. Hlobil discuss how a Regression Discontinuity Design can be executed.

Papers in honour of Professor Annelou van Gijn

This project intends to provide an integrated linguistic assessment of the hypothesised migration route of the Tocharians.

Why did 'character', 'habit', and 'virtue' serve as key terms in late 19th and early 20th-century scholarly correspondences, biographies, and obituaries? Why did scholars around 1900 display so much interest in the working habits and character traits of what they called the 'scholarly self'?

ELS@Leiden aims to give empirical legal research skills and interdisciplinarity a prominent place within the law school curriculum.

The archaeology of transregional exchange (1st millennia BCE-CE)

Our focus is to optimize the fungal cell wall to both increase chitin production and chitin extractability.

This recently released book takes a critical view of conceptual issues and practical problems that inevitably emerge when ‘excellence’ takes center stage in science systems in the Global South. What is ‘excellent science’? And how to recognize and assess it? After decades of inquiry and debate there…

The work presented in this thesis is based on ALMA surveys of protoplanetary disks in three star-forming regions: Lupus, OMC-2, and NGC 2024.

From a meaningless block of plastic to an advanced component that contributes to the energy transition. The technicians and scientists of our faculty think it out in detail and make it a reality. This special project shows that they need each other.

The list of substances prohibited by the World Anti-Doping Agency (WADA) is huge. PhD candidate Jules Heuberger looked at many of these, as well as at the methods used to detect them. He concluded that for very few of these substances is there is evidence that they actually do enhance performance. PhD…

Crime victims cannot always fully exercise their rights, said Maarten Kunst, Professor of Criminology, in his inaugural lecture on 26 October. His mission is to find out why exactly this is and to see whether change can be brought about.

The group of Dr. Roxanne Kieltyka designs and synthesizes molecules that self-assemble into polymeric materials using specific non-covalent interactions. These substrates can be used for numerous applications in medicine ranging from disease detection to cell delivery depending on the (bio)molecular…

Political Scientists Harun Cero and Arlinda Rrustemi (Leiden University) argue that the Russian invasion of Ukraine could present a chance for Bosnia and Kosovo to finally remove Russian influence, which has been growing and blocking these countries for years. The West should shift away from appeasing…

This project develops a scientific method to extract clinically relevant new information from patient forum websites that discuss patient experiences concerning e.g. medication, nutrition, co-morbidities, genetic factors etc.

Natural history collections provide invaluable sources for researchers with different disciplinary backgrounds, aspiring to study the geographical distribution of flora and fauna across the globe as well as other evolutionary processes.

This volume sees the publication of fifty-six early Old Babylonian letters from ca. 1880 BCE. They were found by legendary Iraqi archaeologist Taha Baqir in 1941 at the site of Tell ed-Dēr, ancient Sippar-Amnānum, in central Iraq.

Marieke Liem, Professor Social Resilience and Security at Leiden University, and Katharina Krüsselmann, PhD candidate at Leiden University and Manuel Eisner mapped the flow of homicide cases with the help of a systematic review.

This dissertation investigates ikat from the eastern Indonesian islands from a uniquely technical perspective, including design analysis of asymmetry and microscopy.

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

The economic history of Soviet development practices in Central Asia remains controversial and dominated by the view that Soviet development policy was wasteful and inefficient in the periphery. Challenging the established view of Soviet largesse and largely undirected and untracked “subsidies” to…

Who is Economic Man? Every economic paradigm presupposes an anthropology, a theory of human nature. This project explores the anthropologies presupposed and produced by ancient Greek economic texts, and the specific knowledge forms that shape these anthropologies.

The Dutch universities are conducting a joint campaign to promote open access: free access to academic and scientific publications. Many Leiden researchers support open access. Given that it involves a shift in the financing from the reader to the author, they point out the need for effective agreements…

Cryptographer Max Fillinger developed new methods to analyse a group of algorithms called commitments schemes. These schemes are building blocks for cryptographic protocols, which enable multiple parties that do not trust each other to work together safely. His PhD Defence is on 19 March.

The Faculty of Science has presented an infographic with tips and tricks for work stress. The reason for this was the Personnel Monitor 2018, which showed that work pressure is a problem for many employees at the Faculty. ‘It is important to start the discussion about work pressure, and to break the…

Na Zhou (PhD at ICLON) researched how vocational teachers’ learning takes place in a work placement programme and how their learning supports their teaching in school. Defence on 1 March.

Despite the promising effects of technology in assessment and treatment, the actual use of novel technologies in juvenile justice context remains limited. We want to inspire researchers to develop and investigate technological applications for assessment and treatment for justice involved youth.

The 2015 and 2018 Personnel monitors show that maintaining a good work balance remains difficult for staff at the Faculty of Humanities. Lecturer and researcher Judith Naeff and holder of the operational management portfolio Suzy Sirks have joined the Work Balance Steering Committee to examine the…

Environmental scientist Rutger Hoekstra addressed the General Assembly of the United Nations on 12 April. And that’s quite a big thing to do. How do you get there as a scientist? And, more importantly, what was his message? In eight questions, Rutger explains what he does and why.

The Hague Space Resources Governance Working Group, hosted by the IIASL, has recently agreed on the Draft Building Blocks for the Development of an International Framework on Space Resource Activities and will present the outcome of its work during the NewSpace Europe Conference in Luxembourg. The Executive…

Twenty students and alumni from our faculty recently went on a working visit to NATO. Led by Leiden alumna Beaudine Verhoek (MA in International Relations), who is now Officer for Political Affairs and Security Policy at NATO, we were treated to an informative programme at the organisation’s brand-new…

A basic income would not necessarily mean that people would work less. This is the conclusion of a series of behavioural experiments by cognitive psychologist Fenna Poletiek, social psychologist Erik de Kwaadsteniet and cognitive psychologist Bastiaan Vuyk. They also found indications that people with…

Biodiversity in the Netherlands is having a tough time. Professor of Natural Capital Koos Biesmeijer combines research with practical advice: from the greening of industrial parks to solutions inspired by hi-tech nature. Inaugural lecture 9 March.

Does becoming a public sector employee change a person’s political beliefs, behaviors and interactions with the state? Do public teachers hold the same values as other professionals and the general Brazilian public?

The Dutch Government would like to allow QR checks at work. Legal experts expect that employees who refuse could be dismissed.

On 23 March 2023 Weidong Zhang defended his thesis in Leiden on achieving decent work in China. This research analyses to what extent China is achieving decent work based on a case study of decent working time. The word ‘achieving’ underlines that China is still in the process of securing this aim.…

From colonial times through to the present day, large numbers of Javanese have left their homes to settle in other parts of Indonesia or much further afield. Frequently this dispersion was forced, often with traumatic results.

Between the humanities Dean Mark Rutgers and his busy schedule we can find board secretary Jonique van Hooff. Her task is to make sure that the Dean gets to smoothly do his job. 'I get very happy when, after trying to figure things out with busy schedules, I manage to properly arrange things.'

As Director of Education, Marcellus Ubbink learned to work together with many different people. For him, the social aspects are one of the key areas in his new role as Scientific Director of the Leiden Institute of Chemistry. Who is this new manager and what can we expect from him?

On 16 January 2018, the Asia-Pacific Research and Training Network on Trade (ARTNeT) published Fengan Jiang's (Richard) working paper entitled 'Export restrictions and policy space for sustainable development: Lessons from trends in the regulation of export restrictions (2012-2016)''.

We are proud to see the work "Magische Korstmossen" by our alumni Carolien Teunisse and Sabrina Verhage exhibited at the Cinekid MediaLab 2021. Via augmented reality, "Magische Korstmossen" lets children interact with the magical world of lichens.

By examining the impact of Islam on the daily life of those living under its rule, the goal of this project is to understand the striking newness of Islamic society and its debt to the diverse cultures it superseded. Questions will be the extent, character, and ambition of Muslim state competency at…

On 12 November 2019, the members of The Hague International Space Resources Governance Working Group adopted the Building Blocks for the Development of an International Framework on Space Resource Activities, during the last meeting of the Working Group that took place in Luxembourg from 11 to 12 November…

Democratic citizenship refers to the capacity and willingness of citizens to actively influence the functioning of state institutions. While considered a vital correlate of democratization and the rule of law, its largely western-oriented literature rarely studies the forms of democratic citizenship…

The winner of this year’s Iris Medal for Excellent Science Communication is Professor of Science Communication Ionica Smeets.

On November 9th, the students of NVIC visited the Dutch Embassy. Marwan Khalil and Imane Makouri, two students, share their experience:

On February 29 2024, the Humanities Career Service of Leiden University organised a career day to the European Union institutions in Brussels. Natalia Papageorgiou, student of the MA History (Politics, Culture and National Identities), talks about how the day went.