The demand for neodymium-iron-boron (NdFeB) magnets is rapidly growing, while the neodymium supply chain is under pressure. Recycling can alleviate these issues. This thesis investigates the potential for deploying novel magnet recycling technologies and their environmental consequences.

Promotor: H.S. Overkleeft, Co-Promotor: B.I. Florea

As part of Nexus 1492 Subproject 4: A Future for Diverse Caribbean Heritages, which seeks to shed light on how local communities interpret and engage with heritage in the present day, this doctoral study aims to gain insight into how indigenous heritage is represented in the school curriculum for social…

This thesis focuses on the development of sample-preparation methods for small amounts of samples and applying the developed methods to muscle tissues to investigate the mechanisms involved in sarcopenia.

This thesis is a sample-based typological study of formal and semantic patterns in terms for a selection of referring (

On the 24th of September, Louise S. Friis successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Louise on this achievement!

The aromatic infrared bands (AIBs) seen throughout the interstellar medium (ISM) are generally thought to be carried by polycyclic aromatic hydrocarbons (PAHs) and their nitrogen analogues (PANHs).

Form and Function in Greek Grammar. Linguistic Contributions to the Study of Greek Literature is a new book, written by Albert Rijksbaron. Rijksbaron is internationally known as one of the leading scholars of the Ancient Greek language, whose work has exerted a strong and lasting influence on the scholarly…

The starting hypothesis of the project is that secrecy is not always inimical to democratic governance as conventional wisdom has it.

On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.

This study endeavors to reconstruct Plato's theory of change and motion. The diverse perspectives of pre-Socratic philosophers regarding change and motion provide the context for Plato’s exploration of his theory.

A comparative analysis of legitimation strategies in tree hybrid regimes: Russia, Venezuela, and Seychelles.

Promotor: H.J.A. Röttgering, Co-promotor: G.K. Miley

How can challenge-based learning in higher education contribute to sustainable urban waste management and support The Hague’s transition to a zero-waste city by 2050?

This thesis presents the first synthetic peptides ADP-ribosylated on serine, threonine, tyrosine, arginine and cysteine.

The Copenhagen interpretation of quantum mechanics states that a measurement collapses a wavefunction onto an eigenstate of the corresponding measurement operator.

Enzymes are innately sensitive to changes in the amino acid sequence, which largely constrains their evolutionary potential, i.e., evolvability. This evolutionary burden can be alleviated in the presence of stabilizing mutations, which increase the buffering capacity of enzymes to tolerate mutations…

The topic of this PhD thesis is teachers' perspectives on self-regulated learning.

This thesis describes research aimed at discovering inhibitors selective for either of the two endoplasmic reticulum α-glucosidases, ER-I and ER-II, with the overarching goal of discovering new antiviral agents to treat viruses that rely on host N-glycosylation for proliferation.

Traditional biochemical methods for studying organelles require cell disruption, preventing the real-time observation of dynamic intracellular processes.

PhD defence

PhD defence

As an interdisciplinary institute in the field of Security Studies, the Institute of Security and Global Affairs (ISGA) covers various topics in its research, one of which is the United Nations and the impact of this global organization in the world.

Five students who graduated from the Bachelor Security Studies share their experiences. Where did they end up after graduation? Are they still using the skills they gained during their studies?

An internship at the Police Academy in Apeldoorn. This will be possible for the first time for third-year students of the bachelor's programme Security Studies as of September 2021, now that Leiden University and the Police Academy have joined forces. ‘The internships offer students a unique opportunity…

On Thursday 21 November 2024 Jake Benson successfully defended a doctoral thesis and graduated.

Abstract submission is now open for the international conference of the ELS Academy, in Amsterdam on September 1 and 2.

Pursuing Whiteness in the Colonies offers a new comprehension of colonial history from below by taking remnants of individual agencies from a whiteness studies perspective. It highlights the experiences and perceptions of colonisers and how they portrayed and re-interpreted their identities in Afric…

This historical study argues that the Mandaean religion originated under Sasanid rule in the fifth century, not earlier as has been widely accepted. It analyzes primary sources in Syriac, Mandaic, and Arabic to clarify the early history of Mandaeism.

This dissertations studies state-society relations in 1930s Turkey, focusing on the anti-veiling campaigns in the mid-1930s and aiming to understand the ways in which the Kemalist policies were received, interpreted, negotiated, compromised and/or resisted by various actors in the provinces.

In this second book of the series

African Studies is a field notoriously lacking in African scholars. Miriam Siun, research master student in this field, noticed this from the moment she started the programme. She decided to take matters into her own hands and hold a seminar reflecting on this issue.

Hermeneutics and the Humanities: Dialogues with Hans-Georg Gadamer / Hermeneutik und die Geisteswissenschaften: Im Dialog mit Hans-Georg Gadamer

Pottery traditions and social interaction in the earliest Neolithic of the Lower Rhine Area

How an initially valueless object becomes worth hundreds of millions. And vice versa.

In this overview of the reception of Duchamp, the plurality of possible approaches is examined.

This research investigates the impact of socioeconomic developments on the physical condition of medieval populations in Holland and Zeeland between AD 1000 and 1600 through the analysis of human skeletal remains from three archaeological sites.

How did Anglo-Saxons reflect on the experience of growing old? Was it really a golden age for the elderly, as has been suggested?

ASLU 29 Maarten E.R.G.N. Jansen, Valentina Raffa (2015)

Lecture, Sociolinguistics & Discourse Studies Series

Mateo Cohen (research assistant at the Open University of Israel and PhD candidate at Leiden University’s Institute of Political Science) studied arguments articulated by diverse members of the Right-Wing elite in Israel and explains how these views lead to the rejection of a two-state solution and…

How can we let the sonic speak in public urban environments? What is the function and position of sound in our daily encounters with urbanity? How do we experience cities aurally? This was the topic of Marcel Cobussen's inaugural lecture on November 28th, 2016.

More than 300 students received their Bachelor’s Diploma of International Studies on 31 August 2018.

On Thursday 29 January 2026 Uğur Derin successfully defended a doctoral thesis and graduated.

From the new street language Smibanese to 17th-century manuscripts: the first national Dutch Studies Open Day explores a wide range of topics. The Open Day will take place on Saturday 7 March in Leiden. Frits Spits will broadcast his radio programme ‘De Taalstaat’ (The Language State’) from the Kamerlingh…

What are the conditions under which coercive diplomacy can compel a State to abandon its nuclear weapons program?

Combining cutting-edge quantitative approaches with more traditional book history approaches, this new book offers the first history of medieval manuscript destruction in England from the medieval period to the present.

The Utrecht Centre for Medieval Studies invites PhD's and other ECRs to present their research on the Medieval Studies Day 2023. Deadline for abstracts: September 30.

'Dialogues Between Artistic Research and Science and Technology Studies', edited by Henk Borgdorff, Peter Peters and Trevor Pinch, will be published by Routledge on November 18