Vitamin A or retinol is essential in embryonic development, the visual cycle and the immune system.

This book challenges the predominance of mainstream sociolinguistic theories by focusing on lesser known sociolinguistic systems.

In 2019, Aliaksandr Lukashenka marks a quarter of a century as the first, and so far only president of the Republic of Belarus. This new book by Dr. Matthew Frear, Assistant Professor of Russian and Eurasian Studies, offers the most up-to-date analysis of government and politics in a country usually…

Promotor: Prof.dr. M.K. Richardson, Co-Promotor: F. Witte

What are the humanities? As the cluster of disciplines historically grouped together as “humanities” has grown and diversified to include media studies and digital studies alongside philosophy, art history and musicology to name a few, the need to clearly define the field is pertinent.

This 25th volume in the series 'Islam in Africa', edited by Annachiara Raia, is a pioneering collection of poetry by the outstanding Kenyan poet, intellectual and imam Ustadh Mahmmoud Mau (born 1952) from Lamu island, once an Indian Ocean hub, now on the edge of the nation state.

Promotor: Prof.dr. P. Stevenhagen & Prof.dr. K. Belabas (Univ. de Bordeaux)

While many European universities, Leiden included, have a proud tradition of research into Islamic studies, a topical and thematic focus on Shiʿi Islam in all its dispensation remains a desideratum.

There are strict conditions relating to work for third parties.

Promotor: Prof.dr. G.R. de Snoo

On 1 April 2020, Marc Broekema defended his thesis 'Cognitive Bias in the Judgment of Business Valuations and Valuators'. The doctoral research was supervised by Prof. J.I. van der Rest.

The investigations described in this thesis lay out strategies aimed at advancing antibiotic research and development. The examples presented revolve around two main approaches: understanding drug-target interactions and target identification.

The Near East, situated at the nexus of Europe, Africa, and Asia, was central to the development of ancient societies in all three continents.

At the start of your PhD, you have to make agreements with your supervisors concerning your personal development and your supervision. These agreements must be recorded in an Education and Supervision Plan.

When you have completed the admission process, you can begin to prepare for your studies. Here are some tips to help you get a head start.

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…

Do you have any questions about the master's specialisation School Psychology? Please contact us.

You’ve been accepted! Leiden University looks forward to welcoming you as a new student. Your next step is to prepare for your studies. Below you can find some tips to help you get a head start.

Do you have any questions about the master's specialisation Health and Medical Psychology? Please contact us.

The Astronomy Research specialisation consists of 120 European Credit Transfer System (EC) points and includes a wide selection of Astronomy electives and two research projects.

Do you have any questions about the master's specialisation Clinical Neuropsychology? Please contact us.

During the CSM programme, you will have interactive guest lectures with professionals active in the security domain. The guest lecturers will speak about their career (development) and how they reached their goals.

Do you have any questions about the master's specialisation Occupational Health Psychology? Please contact us.

Do you have any questions about the research master's specialisation Cognitive Neuroscience? Please contact us.

During the CSM programme, you will have interactive guest lectures with professionals active in the security domain. The guest lecturers will speak about their career (development) and how they reached their goals.

During the CSM programme, you will have interactive guest lectures with professionals active in the security domain. The guest lecturers will speak about their career (development) and how they reached their goals.

During the CSM programme, you will have interactive guest lectures with professionals active in the security domain. The guest lecturers will speak about their career (development) and how they reached their goals.

Do you have any questions about the master's specialisation Social and Organisational Psychology? Please contact us.

You’ve been accepted! Leiden University looks forward to welcoming you as a new student. Your next step is to prepare for your studies. Below you can find some tips to help you get a head start.

The master’s specialisation Evolutionary Biology at Leiden University investigates biology at all levels. The specialisation includes genomics, functional developmental genetics, paleobiology, behavioral biology and evolutionary ecology.

During the CSM programme, you will have interactive guest lectures with professionals active in the security domain. The guest lecturers will speak about their career (development) and how they reached their goals.

By following the Education Programme you will be able to combine your scientific background with new skills and become acquainted with teaching. This two year programme will give you the right tools for being a scientist and a teacher.

The programme guarantees a thorough experience on the frontline of physics research with a practical training of communicative and computer skills.

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

In art history, performance is categorized as performance art and defined as live-act. However, performance is no longer conceived of by artists as live-act only.

Political protest is often at least partially about the question of legitimacy. How can we distinguish whether a regime is legitimate, or merely purports to be so?

N-acylethanolamines (NAEs), which include the endocannabinoid anandamide, represent an important family of signaling lipids in the brain. The lack of chemical probes that modulate NAE biosynthesis in living systems hamper the understanding of the biological role of these lipids.

My research examines children’s responses to humor in children’s poems translated from English into Filipino.

The recently introduced nature-originated deep eutectic solvents, so-called natural deep eutectic solvents (NADES) are considered as truly green solvents, which composed of natural ingredients found abundantly in organisms.

Fieldwork is a crucial part of the learning process for students in the Faculty of Archaeology. This includes both fieldwork aimed at collecting archaeological data and materials as well as fieldwork for heritage studies. The Faculty has established a specific centre of expertise to further shape these…

This dissertation studies the Asymptotics of Bayesian nonparametric inference for Gaussian linear models.

The Computer Systems, Imagery & media (CSI) research programme performs research on methods and techniques for the design, implementation and application of advanced computer systems, in particular parallel, distributed and embedded computer systems.

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..

Leiden University offers 12 Bachelor programmes taught in English. Tuition for undergraduate programmes range from 10,000 - 12,000 euros / year depending on the chosen study programme.

Sociopragmatics is a rapidly growing field and this is the first ever handbook dedicated to this exciting area of study.

At the moment, over 350.000 chemicals are registered worldwide for production and use. Their application, however, may harm human health and the environment.

FIJI is one of the most used image analysis tools in the world. FIJI stands for FIJI is just ImageJ, it is however much more.

This book offers a comprehensive analysis of the international law applicable to cyber operations, including a systematic examination of attribution, lawfulness and remedies. It demonstrates the importance of countermeasures as a form of remedies and also shows the limits of international law, highlighting…