The Special Issue of the European Journal of Applied Linguistics on ‘Language Ideologies: Old Questions, New Perspectives’ aims to offer diverse insights on language ideologies with a focus on methodological and theoretical questions.

The place of women in Leiden University was not steadily established for a very long time. Their roles spanned beyond the realms of academics and students. Seeking equality with men, they fought to obtain the right to work, to study and teach at university, to attain high-level jobs and to vote.

Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo

Promotores: H. Schiessel, G.T. Barkema

Promotores: Prof.dr. J. Aarts, Prof.dr. J.M. van Ruitenbeek

On 30 January 2024 Jurre van der Meer successfully defended a doctoral thesis and graduated.

Frans Preumayr's nineteenth century virtuosic bassoon repertoire - An approach with a fine Grenser & Wiesner bassoon from Dresden: Issues of material and technique

Argumentation and rhetorics is the study of how we convince people verbally. In other words, what do people say and how do they say it?

Learning is easiest out of interest. But interest is often multiple, and expands in various directions. How do you organize education accordingly?

Consumer complaints, the war against drugs, family issues, matters of state: Rechtsgeleerdheid (Law) is socially relevant and topical.

The Mathematics and Algebra, Geometry and Number Theory specialisation programme consists of 120 European Credit Transfer System (EC) points and includes a research project (40 EC), advanced courses (min 60 EC) and electives (maximum 20 EC). 30 EC are to be taken from the Dutch national Mastermath p…

Find out how to apply for Law and Society (MSc)  at Leiden University by following our step-by-step guide. 

Indonesian translation of the book Recollecting Resonances from authors Bart Barendregt and Els Bogaerts.

Promotores: Prof.dr. A.G.G.M. Tielens & Prof.dr. L. Kaper (UvA)

Can we speak of a single Islamic discourse in fields like politics, militancy, economics, sustainable development, and the like, and what interaction does this Islamic though have with ‘Western’ thought?

In this paper, the authors study how individual and country-level variables interact in affecting political gender attitudes in Europe.

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.

An Ancient Egyptian System of Workmen’s Identity Marks

Doctoral Thesis

What motivates people to provide help to, or seek help from other groups? And what are the psychological consequences of receiving help from another group?

Route descriptions to CML by public transport or car

Promotor: J. Aarts

description that google uses to depict when in presented in search results

High-angular-resolution observations of the circumstellar material have uncovered numerous and very diverse substructures in protoplanetary discs, raising the question of whether they are caused by forming planets or other mechanisms.

A common method to solve expensive function evaluation problem is using Bayesian Global Optimization, instead of Evolutionary Algorithms.

The Dutch prefix ge- in historical perspective gives first of all a general account of the development of the word formation processes involving ge- in which special attention is paid to the participial ge-.

Promotores: W. Th. F. den Hollander, M.O. Heydenreich

Promotor: Prof.dr. E. F. van Dishoeck, Co-promotor: A. N. Heays

The active learning network joins together everyone interested in the subject to move the theme further within Leiden University. The SALTSWAT pilot program researches the ways forward for Leiden University.

CML has its very own PhD committee! The committee organises activities that stimulate social cohesion and professional development for the PhDs, postdocs, research assistants and lab technicians working at the institute.

We report new computational and experimental evidence of an efficient and astrochemically relevant formation route to formaldehyde (H2CO). This simplest carbonylic compound is central to the formation of complex organics in cold interstellar clouds and is generally regarded to be formed by the hydrogenation…

Over time Dutch and Indonesian composers, performers and music scholars have inspired each other and they continue to do so. The presence of the Dutch in the Netherlands East-Indies and Indonesia, but also the existence of large diasporic communities in the Netherlands have contributed to a mutual exchange…

This project will lead to a critical edition and annotated translation of the Niśvāsamukha, the opening book of the Niśvāsatattvasaṃhitā.

This work describes the use of click-to-release chemistry to get spatiotemporal control over immunocytokine activity. Until now, immunocytokines (cytokines coupled to a tumor-targeting-moiety) remained active throughout the body, being able to bind their respective receptors, causing mild to severe…

Political scientists Tom van der Meer, Lisa Janssen (University of Amsterdam) and Tom Louwerse (Leiden University) analyse polls presented by the main polling agencies in the Netherlands, as well as micro-level panel data. They reach three main conclusions. First, vote intention polls in the Netherlands…

Promotor: Prof.dr. G.P. van Wezel

Are you mad about board games? Then we’ve got good news for you: we’ve developed our very own University game, HORA EST! It’s a fun way to learn more about the University. Get your family and friends together for an evening of fun and games!

Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.

The Faculty of Humanities’ accommodation needs to be modernised. The education and research buildings are seriously outdated and non-sustainable, which could ultimately compromise the quality of our education..

A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.

We found that, next to the effectiveness of the intervention, it’s also very likely that the intervention is cost-effective compared to attention only.

A remarkable population of short period transiting rocky exoplanets with equilibrium temperatures on the order of 2,000 K has recently been discovered.

Humans perceive the real world through their sensory organs: vision, taste, hearing, smell, and touch. In terms of information, we consider these different modesalso referred to as different channels of information or modals.

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In citizen science projects, citizens and scientists work together to develop new scientific knowledge.

Newly published: ‘Background to Beakers’; inquiries into regional cultural backgrounds of the Bell Beaker Complex. Harry Fokkens / Franco Nicolis (eds.).

Leiden Observatory provides a dynamic, international environment for work and study. Established in 1633, the institute has a very rich tradition. The famous Old Leiden Observatory is the oldest operating university observatory in the world. At Leiden Observatory we carry out world class research and…

On 29 June May 2022 Yujing Tan successfully defended a doctoral thesis and graduated.