Many students have difficulties to read and give meaning to algebraic formulas. In this study it is explored whether graphing formulas with pen and paper will improve students’ability to reason with algebraic formulas.

Making sense of the world around us depends on the fundamental ability to parse the world into distinct objects and keep track of them. This process is defined as object individuation. Research indicates that it is not always easy for infants.

An important aspect of the promotion and safeguarding of good practices at the Institute of Psychology is to make sure that employees are being facilitated and guided by offering information about and resources for training. On this page, an overview of various mandatory and recommended training is…

Following their application to system biological models, control theory techniques have further potential to aid in the understanding and application of quantitative systems pharmacology models.

Which plant leaf characteristics are involved in thrips resistance in tomato?

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within the University and outside, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner. To make sure PhD…

Music profession requires strong reflective, collaborative, creative and improvisational skills, yet prevailing one-to-one tuition in conservatoire education focuses mainly on transmission of craft skills. Examining effects of students' collaborative and experiential learning, as in learning labs, creates…

Bacteria caught red-handed, deeply frozen just as they were about to cause Lyme’s disease. Ariane Briegel is wildly enthusiastic about the wonders she observes thanks to three elements: a freezing technique, a camera-equipped microscope, and AI. ‘It’s fascinating. Every single cell is different.’

In a virtual game environment, one of the positive effects of anonymity is the absence of one's prejudice toward others, which can give a person the freedom to change and experiment (Bartle, 2003). This project will adopt anonymity to be added to online cross-cultural collaborative learning in higher…

What are the conditions under which coercive diplomacy can compel a State to abandon its controversial nuclear (weapons) program? Based on the experience of the US coercive diplomacy against the nuclear programs of three countries, namely Iran, Libya and South Africa, Jean Yves Ndzana’s PhD research…

We have recently discovered that there are biological proteins that phase separate out of solution much the way oil will de-mix from water (see movie). These form dense, liquid-like phases called protein condensates.

What determines civic engagement in transboundary hydropolitics and why has it been muted in the Eastern Nile Basin?

Since 2013, the National Natural History Museum of the Netherlands, Naturalis Biodiversity Center, is unearthing the largest bonebed of the horned dinosaur Triceratops discovered so far. In order to answer questions about sedimentology, taphonomy and palaeobiology, palaeontologists and geologists collaborated…

How does having limited access to the social world affect Deaf or Hard of Hearing (DHH) children’s emotional development? And in turn, how do impairments in emotional functioning affect social development and the development of psychopathology?

The Kroese-Duijsters symposium will be held in the Gorlaeus Building of the Faculty of Science.

Onderwijs omvat wiskunde, informatica en data science, astrofysica, natuurkunde, chemie tot bio-farmaceutische wetenschappen, biologie en milieukunde.

This project looks at material culture to better understand the character and organization of Roman colonial society in the Republican period, with a focus on the colony of Aesernia (founded 263 BC) in Samnium (modern-day Molise, Italy). What impact did the foundation of the colony have on precolonial…

This NWO-funded VICI project (2025-2030) led by Prof.dr. Petra M. Sijpesteijn examines the place-making processes in the early Islamic Empire.

The thesis is part of a bigger project, the HEPGAME (High Energy Physics Game). The main objective for HEPGAME is the utilization of AI solutions, particularly by using MCTS for simplification of HEP calculations.

How do students’ interests develop over time and which interests are subsequently pursued in the higher educational choice of students?

Do natural soundscapes affect migratory decisions of fishes moving up and down rivers and is this process disturbed by vessel sounds?

In CCLS several subgroups have formed, below you can find an overview of these groups with the names of the leading researchers and a short outline of the project.

The Museums, Collections & Society research programme is led by the Faculty of Humanities and the Faculty of Archaeology and aims to promote collection-based research, stimulate Leiden education in this field, and raise ethical questions regarding the collections’ origins.

From the Big Bang to superconductivity. Many ground-breaking discoveries have been made in Leiden University’s long history.

During your stay at Leiden University it's a great idea to join a student or sports association. It's the perfect way to get to know people quickly and build a network, whilst also being a whole lot of fun.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

Supervisor: Natalia Ortiz Zacarías

In deep reinforcement learning, searching and learning techniques are two important components. They can be used independently and in combination to deal with different problems in AI, and have achieved impressive results in game playing and robotics. These results have inspired research into artificial…

When you apply for admission, you’ll be asked to submit several documents.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

Will you be studying in Leiden University in The Hague? If so, join in the HOP introduction week and get acquainted with the city and its student life.

Get to know us through our online and in-person events for prospective students!

Get to know us through our online and in-person events for prospective students!

Get to know us through our online and in-person events for prospective students!

Get to know us through our online and in-person events for prospective students!

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

Leiden University offers ambitious students the latest knowledge and the freedom to develop their own area of expertise.

The project GRADIENTS investigates what it meant to be European in colonial Africa where identification as European often did not depend on skin colour and was understood on a spectrum with many gradients.

This dissertation presents the first full grammatical description of bago ts'amakkilo ('mouth of the Ts'amakko'), or simply Ts'amakko. It is a Cushitic language, spoken in Southwest Ethiopia and belongs to the Dullay cluster of Lowland East Cushitic. The number of speakers is about 10,000. The data…

Cyber agent technology and intelligence agencies is a project that is commissioned by Tracks Inspector, a Dutch company that develops innovative software.

From applied to fundamental research, and from algebra to data science, our master’s programme spans these fields entirely. You will be able to follow courses from the national Mastermath programme and write a thesis in one of our strong research groups in algebra, number theory and geometry; dynamical…

Get to know us through our online and in-person events for prospective students!

Research Schools aim at collaboration between researchers from different faculties (interfaculty schools) and universities (interuniversity schools).

Research and design are becoming more and more important in international science education. In The Netherlands, two recently introduced subjects focus on research and design activities in the classroom: O&O (research and design) and NLT (nature, life and technology). This research aims to look at what…

In an increasingly complex and security-challenged society, the CSM programme provides you with the theoretical and practical skills to understand the issues underlying security challenges and develop solutions for crisis and security management.

MA History specialisation Governance of Migration and Diversity at Leiden University

The master’s programme of Bio-Pharmaceutical Sciences at Leiden University examines the research area of bio-pharmaceutical sciences and drug research. It offers seven specialisations ranging from BioTherapeutics to Industrial Pharmacy.

In this thesis, single-cell approaches were applied to characterize the impact of aging on the immunological B cell landscape in different models of atherosclerotic cardiovascular disease, with the goal to identify and study new B cell-associated biomarkers and therapeutic targets to halt atherosclerosis…