In this work we describe three methods to improve the performance of Quantum Field Theory calculations.

Reinforcement learning is a framework that enables agents to learn in a manner similar to humans, i.e. through trial and error. Ideally, we would like to train a generalist agent capable of performing multiple tasks and achieving various goals.

The four research groups of the Mathematical Institute often organise inspiring meetings, such as lectures, colloquia and symposia.

Receiving a PhD degree is considered the highest educational proof of possessing the research skills necessary to carry out independent academic research. PhD candidates are stimulated to present research results at international scientific meetings and publish in high-ranking scientific journals. Doing…

PLATO is active in various fields of work.

The research within the Liveable Planet programme is clustered around four themes. Find out why these topics deserve our attention.

Leiden University has four interfaculty institutes.

Morality, mathematics, geometry, geography, music, navigation, and language are traditionally viewed as uniquely human cultural achievements and abilities. The study of their development and variation is classified as part of the humanities and social sciences. These fields have been mainly studied…

Organisation Institute of Biology Leiden

The authors detail the transnationality of terrorist organisations, including fundraising, communications, alliance-forming, movement and target selection.

This project aims to identify, quantify and map the exposure of Dutch national monuments to four climate change effects: flooding, waterlogging, drought and heat.

Leiden University was the first university to be established in the Netherlands. William of Orange gave Leiden Academia Lugduno Batava in 1575, it is said in recognition of the city’s courageous resistance against the seige by the Spanish invaders.

The aim of this research is to understand the linking of crises for the combination of climate change and the COVID-19 pandemic.

On the 13th of April, Federico Dragoni successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Federico on this achievement!

Microwear and starch grain analysis on experimental and archaeological grinding tools from Central

Nirajan Kafle defended his thesis on 15 October 2015

Drawing on the analogical lessons of the Great War, this article uses applied history to analyze how the four parallels discerned can help us make sense of contemporary Sino-American rivalry

Programs that aim to reduce symptoms of social anxiety in children generally include multiple components, such as exposure and cognitive restructuring. It is unknown if separate components yield positive intervention effects in children or whether a combination of components is required.

This thesis focuses on the concepts of freedo and fixity as two central topics of my artistic research. I present, analyze. and contextualize four of my works which have explicit links to fleedom and fixify and which demonstrate the dynamic interrelationship between the two.

This article by Honorata Mazepus and Florian van Leeuwen in the journal Governance: An International Journal of Policy, Administration and Institutions looks at how evaluations of authorities were influenced by four aspects of a governmental response to a hypothetical disaster.

Contacts between Tocharian A and B and Khotanese and Tumshuqese, four languages once spoken in today’s Xīnjiāng Uyghur Autonomous Region in Northwest China, lack a comprehensive treatment and are still a controversial topic. This work contains the first systematic investigation of the matter from a…

Source: Structure , Volume 22, Issue 8, pp. 1120-1139 (2014)

The overall objectives of my thesis are to investigate the dynamics of the sorghum root microbiome and to explore the beneficial effects of the root microbiome on sorghum growth and stress tolerance.

This dissertation contains four works during my PhD. Different biomaterials have been designed based on coiled-coil peptides. These biomaterials have a range of applications, inclusing drug delivery, cell sorting to cell-cell fusion.

This dissertation contains a detailed description of the Carib language, including the most extensive dictionary of the language to date. This knowledge is based on work from earlier sources and field work which was carried out by the author over a ten-year period, particularly in Galibi, a Carib village…

Promotor: G.J. Kramer Co-Promotor: E.G.M. Kleijn

The master in Media Studies is a one-year programme with four specialisations. Each specialisation explores connections between the various media and examines both present-day and historical material.

The Programme Committee Biology (Opleidingscommissie Biologie, OCB) consists of four teaching staff members and four students, and is assisted by the study adviser. The OCB has an independent position within the Biology education program. Because of its composition, the OCB is the most important organ…

'Collaboration, Mediation, and Comparison: Epistemological Tools from Theory-driven Fieldwork Practice' is written by Cristina Grasseni and published in Anthrovision.

The four possible segments A, T, C and G that link together to form DNA molecules, and with their ordering encode genetic information, are not only different in name, but also in their physical and chemical properties.

Trigonostemon Blume is a plant genus in the family Euphorbiaceae comprising 59 species.

European Politics and Society offers a fresh approach to understanding how European politics, history, culture, economy, and international relations are connected. You’ll explore how these fields shape policy-making and Europe’s role in the world.

Study European politics, society, and international relations across four major European cities: Prague, Leiden, Krakow, and Barcelona. This two-year joint Master's programme offers a unique interdisciplinary experience.

The Multistakeholder Global Governance (MGG) Project is a four-year project which explores how far, and under what circumstances, multistakeholder constructions of global governance operate well, in terms of having capacity, effectiveness, and legitimacy.

A fun challenge full of energy, teamwork and good vibes? On Saturday 21 June 2025, the Leiden Science Run was back!

The economics department teaches the following four courses within the master Pubic sector Management. This is a dutch master.

There are over 17,000 universities in the world. Leiden University is placed in the top 100 in the world in four leading international rankings.

Are you a student and do you find that after reading about the Leiden Leadership Programme, you still have questions?

On Friday 22 November 2024 Ye Jiang successfully defended a doctoral thesis and graduated.

On the 20th of October Abdullah Alhatlani successfully defended a doctoral thesis and graduated.

Source: J Med Chem (2015)

This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.

In this article Jeroen Wolbers and Sanneke Kuipers take a closer look at disaster preparedness to reinvigorate the academic debate.

On 11 February 2020, Clara van Dam defended her thesis 'Guidance documents of the European Commission in the Dutch legal order'. The doctoral research was supervised by Prof. W. den Ouden and Prof. J.E. van den Brink (UvA).

Phosphorylation affects all four major biomolecules – proteins, lipids, carbohydrates and nucleic acids – and plays a pivotal role in the most fundamental cellular functions.

On November 21st, Frederick Boswell succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Frederick on this great result.

The Chair Democratic Representation in the Kingdom focuses on the political relations between the ‘European’ Netherlands and the six Caribbean islands in the Kingdom; so-called Kingdom Relations. Professor Wouter Veenendaal investigates the quality of democratic representation in the Kingdom, both within…

In this thesis, we used genetically engineered mouse models and a variety of cell-culture based assays to identify genes and pathways that are involved in the development and treatment of invasive lobular carcinoma (ILC).

This dissertation aims to explore how university students use mobile technology for their self-directed language learning and investigate factors influencing their self-directed learning with mobile technology.