The two-year Master in Statistics & Data Science consists of 120 European Credit Transfer System (EC) points. It consists of a core set of mandatory courses, electives and a Master's Thesis Project.

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A new paper written by Jolien van Breen, Soledad de Lemus, Russell Spears & Toon Kuppens in the British Journal of Social Pscychology examines the impact of the 2008-2012 financial crisis on national identity in Spain.

The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…

The ultimate goal of cosmologists is to find a cosmological model able to explain the current observational data.

Promotor: J.N. Kok, P.E. Slagboom Co-promotor: J.F.J. Laros

This year is the 444th anniversary of Leiden University and we are celebrating this with the residents of the two cities in which the University has a presence: Leiden and The Hague. We are therefore holding an exhibition about the University and its connections to the city in the Atrium of City Hall…

Why does one person radicalize to involvement in terrorist violence within a group-based context, while another engages in this form of violence alone?

A study of the technology, form, function, and use of pottery from the settlements Uitgeest-Groot Dorregeest and Schagen-Muggenburg 1, Roman Period, North-Holland, the Netherlands

The work described in this dissertation contributes to a better mechanistic understanding of nanoparticles in vivo. To achieve that goal, we used the zebrafish as a highly predictive pre-screening model of nanoparticles.

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In the last decade, the redox interconversion between metal thiolate and disulfide compounds has been extensively investigated for copper, but not for other transition metal ions.

Seasonal influenza vaccines provide protection against matching influenza A virus (IAV) strains mainly through the induction of neutralizing serum IgG antibodies. However, these antibodies fail to confer a protective effect against mismatched IAV. This lack of efficacy against heterologous influenza…

Leiden University's Pre-University College is for secondary school pupils that are looking for an extra challenge and are curious about science. Prerequisite is that your school is a partner of the Pre-University College.

On 4 March 2021, Michiel Spanjers defended his thesis 'Belastingbudget'. The doctoral research was supervised by Prof. J.P. Boer and Prof. H. Vording.

What motivates citizen scientists in the Schone Rivieren project to contribute? How does their motivation, attitude and knowledge change over the years? Are there differences in motivation and attitude between different groups of volunteers (clean up vs. monitoring; long-term vs. short-term)?

We are a dynamic research group at the Leiden Institute of Physics. Our aim is to explore and understand quantum materials, including strange metals, high-temperature superconductors, and quantum critical electron matter.

Promotor: Prof.dr. M. Danhof, Co-promotor: E.C.M. de Lange

On 18 June 2019, Peter Kempees defended his thesis 'Hard power and the European Convention on Human Rights'. The doctoral research was supervised by Prof. R.A. Lawson and Prof. H. Duffy.

In my research, we developed a method to distinguish knots. A knot is a mathematical depiction of the everyday knot that occurs in ropes and cords.

What are the main factors associated with the stranding of the two seal species? What are the factors influencing the prevalence of disease in the two species? Which human-related factors influence the populations of the two seal species?

Developing robust algorithms and theory for establishing cause-effect relationships from observational data that scale up to large data sets

How do you fit two meters of DNA in a tiny compartment and at the same time are able to access the right parts of it at the right times?

The lysosomal β-glucosidase named glucocerebrosidase (GCase) is a retaining β-glucosidase that hydrolyzes the glycosphingolipid glucosylceramide (GlcCer) to ceramide and glucose at acid pH.

A technique originally developed for satellite imaging can now be used to recover pictographic texts from underneath the surface of a five hundred year old Mexican manuscript.

Promotor: S.M. Verduyn Lunel

As humans we have a tendency to judge certain actions as either right or wrong. Where does our moral sense come from? We found evidence that infants who are only one year old prefer those who comfort as opposed to ignore another who is sad.

In this thesis, the discovery and optimization is described of chemical tools to study the N-acylethanolamine (NAE) biosynthetic pathway.

The territories that would make up what is today the Republic of Zambia officially became British in 1891. However, this did not equate to an on-the-ground presence of colonial authority capable of affecting the destiny and daily lives of people.

In this thesis we explore machine and deep learning approaches that address keychallenges in high dimensional problem areas and also in improving accuracy in wellknown problems. In high dimensional contexts, we have focused on computational fluid dynamics (CFD) simulations.

What role play stress and fear in forming of nocebo hyperalgesia?

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

An important hormone excreting gland in the human body is the pituitary

Are you planning to register for an English taught Master’s Degree Programme after your Bachelor’s programme? In order to assess what your current level of English is, you are invited to complete an Online Oxford Quick Placement Test.

Climate change is one of the largest challenges faced by humanity. To combat this research into alternatives to fossil fuels is ongoing. Dihydrogen is considered a good alternative fuel, since its burning only forms water.

Dissatisfied older teachers regularly quit teaching before reaching retirement age. In her dissertation, Ietje Veldman advocates specific coaching for this group to retain them for education.

This thesis systematically studies the physicochemical properties of non-planar, propeller-shaped, polycyclic aromatic hydrocarbons. The synthesis of several so-called propellerenes is described on a gram scale, using optimized procedures aimed at using less hazardous reagents and reducing the amount…

Research and design are two activities that are becoming increasingly important in the Dutch subjects O&O (‘research and design’) and NLT ('nature, life and technology’). The dissertation of Tessa Vossen (ICLON and Faculty of Science) indicates that teachers and students understand the importance of…

Article by Dennis Broeders in the Journal of Cyber Policy on the (im)possibilities of addressing election interference and the public core of the internet in the UN GGE and OEWG.

Do you have to be able to say everything on Twitter and Facebook? Is Instagram morally obliged to remove photos from attacks? Should we allow the terrorist group to recruit new members on the internet?

How can cardiovascular responses index challenge and threat motivational states? How do challenge and threat states shape, and are shaped by, social relations?

Would you like to learn more about a particular subject under the guidance of enthusiastic academics? Or would you like to take a look at a study you are considering and experience what it is like to attend the university?

Promotores: A.P. IJzerman, H.W.T. van Vlijmen

Bachelor, Master

The study by Tahir Abbas and Liselotte Welten reveals a structural and nuanced understanding of how the question of Salafism in the Netherlands has become an increasingly discussed phenomenon and the types of threats that ought to give genuine concern to security, intelligence and policing services.

The Europa Institute offers a regular European Law LL.M. programme and an Advanced LL.M. programme in European and International Business Law.

Our everyday life consists of all sorts of spatial processes: we find our way to work, remember where we left our keys, and are able to pick up our cup of coffee. We study how the human brain processes such spatial processes. From a clinical perspective, we are interested in how acquired brain damage…

This PhD thesis concerns the topic of arithmetic geometry. We address three different questions and each of the questions in some way is about counting how big some set is or can be.