On 19 September 2023 Tabitha Speelman successfully defended a doctoral thesis and graduated.

Cryptocurrencies have exploded onto global financial markets, with the value of a single bitcoin growing from around 800 USD in 2016 to 67,000 USD in 2021.

The high prevalence of pure red cell aplasia in Thailand has been associated with the sharp increase in number of recombinant human erythropoietin (rhEPO) copy products, based on a classical generic regulatory pathway, which have entered the market.

Development of Natural Resource for New Medicines

Arts and leisure, Arts and leisure

In recent years, the scope of interests to consider in mergers and acquisitions has increased significantly. This has been driven by new regulatory requirements. The different stakeholders have different interests, at times these interests can collide, or even conflict. Balancing these colliding and…

This article tries to examine if one can take the 'One Net' for granted, since the world becomes increasingly fragmented with social and geopolitical tensions. Furthermore, the author seeks to discover what is at stake if the global interoperable network is under a threat of fragmentation.

The genetic information of all living organisms is contained in their DNA. Cells modify the degree of DNA compaction by epigenetics, which largely determines what genes are read out and which genes are transcriptionally silent.

The conquest by Rome brought profound changes to large parts of Europe. Unprecedented infrastructural works were created, towns sprang up, a ribbon of fortresses was laid out along the frontiers.

Statistical considerations guide the design and implementation of the experiments that scientists perform. For instance, in a clinical trial about a the efficacy of a treatment, its effect in a certain minimum amount of patients has to be observed in order to make confident assertions about the efficacy…

In this thesis integral points on affine del Pezzo surfaces are studied.

On 1 October 2019, Emile Cammeraat defended his thesis 'Economic Effects of Social Protection'. The doctoral research was supervised by Prof. K.P. Goudswaard and Prof. P.W.C. Koning.

This thesis consists of two main parts. The first part (Chapters 2 and 3) deals with a class of Markov process called Quasi-Skipfree (QSF) processes.

How can we make agricultural production systems more sustainable as the worldwide demand for healthy, safe food continues to grow? How can we develop healthy new food crops that have higher yields while requiring fewer harmful chemicals?

How can we implement the technique of pharmacological resting-state fMRI to improve the diagnosis of dementia?

Doctoral Thesis

How does FoxP1 affect auditory perception on a behavioural and genomic level?

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)

Feedback from fellow students on academic writing is as informative as that of teachers.

In this research group, headed by Prof. Erik Danen, the aim is to unravel cellular signaling mechanisms in normal and diseased cells, with a long-standing interest in cell adhesion signaling. In complex multicellular organisms such as ourselves, a division of labor emerges where different tissues and…

Ömer Koçyigit defended his thesis on 7 July 2020

In Microbial Sciences, we perform multidisciplinary research to understand the structure and function of microbes at all levels of biological organization, from small molecules and cellular structures at atomic resolution to multicellular communities.

On this page the programme and sessions can be found. The programme will be updated regularly.

This article examines how immigration from Central and Eastern Europe influences political support for Eurosceptic parties.

This thesis seeks to combine two different research topics; Multi-Objective Optimization and Complex Network Analysis.

Our current lifestyle is not sustainable, and we know it. Our carbon-based economy causes climate change, and our livestock threatens the rainforests. We also know what we ought to do to save the planet: decarbonize the economy and change our diet. However, too many people lack the moral motivation…

On the 31 March 2022 Mr. Taufiq Hanafi successfully defended a doctoral thesis and graduated.

What is the relation between brain development and social and cognitive development across childhood, adolescence and adulthood?

Molecular materials have been a subject of interest in fundamental research and applications for decades, and have been studied as bulk crystals, (thin) films and as individual molecules, due to the large variety in their properties. This dissertation explores pentacene crystals near the two-dimensional…

Leiden University focuses on four leadership competences. We believe that connecting with both yourself and others is essential for good teamwork, taking responsibility and pushing boundaries.

We have facilities for various research animals, all of which naturally comply with legal requirements. We take great care of the animals, and our enclosures are designed to meet the specific needs of the different species.

Developing a clinical decision support tool that will make it easier for clinicians to personalise the treatment for patients with high blood pressure. The team is using AI, deep learning methods and patient cohort data from 11 European countries.

On 29 September 2020, Tom van Ham defended his thesis 'Collective violence offenders and offending. The role of individual characteristics'. The doctoral research was supervised by Prof. A.A.J. Blokland, Prof. O.M.J. Adang (RUG) and Prof. Th.A.H. Doreleijers (VUMC).

In this work, we investigate the minute circular dichroism effects of single nanoparticles.To this aim, we apply photothermal imaging with a polarization-modulated heating beam.

Cultural and individual differences

The central aim is to systematically study differences in crime patterns and social control between migrants and non-migrants in early modern Frankfurt am Main.

Growth hormone profiles are pulsatile and highly variable between individuals, limiting the implementation of mathemathical models to quantify an individual's secretion.

Can international organisations be held responsible for violations of international law by peacekeepers in a peacekeeping operation?

Inverse problems are problems where we want to estimate the values of certain parameters of a system given observations of the system. Such problems occur in several areas of science and engineering. Inverse problems are often ill-posed, which means that the observations of the system do not uniquely…

The focal point of the E&G specialisation is welfare states and markets. You develop your skills in economic reasoning, and conducting economic analysis, while learning about the role of government in creating, facilitating and controlling markets.

The majority (80%) of e-waste generated globally are recycled informally in developing countries.

This study focuses on the local level impacts of a highly globalised industry: the international trade in tropical timber.

On 9 June 2020, Maral Darouei defended her thesis 'Managing a sustainable career in the contemporary world of work: Personal choices and contextual challenges'. The doctoral research was supervised by Prof. J.I. van der Rest.

Microneedles represent promising tools for delivery of drugs to the skin. However, before these microneedles can be used in clinical practice, it is essential to understand the process of skin penetration by these microneedles.

On 22 June, Najib Amin defended the thesis 'State-building, lawmaking, and criminal justice in Afghanistan: a case study of the prison system’s legal mandate, and the rehabilitation programmes in Pul-e-charkhi prison'. The doctoral research was supervised by Jan Michiel Otto and Pauline Schuyt.

The Board of Examiners of the Leiden Institute of Advanced Computer Science (LIACS) consists of scientific staff members that are appointed by the Board of the Faculty of Science and acts independently from the research institute.

VVI Research Meeting 2023-2024

Landen proberen steeds strengere maatregelen te nemen om minder aantrekkelijk te worden voor asielzoekers. Mark Klaassen, universitair docent vreemdelingenrecht, noemt het Europese asielbeleid in de Volkskrant ‘een race naar beneden.’

Around the sixth and seventh centuries, South and Southeast Asia saw a great religious change: Saivism largely took over from Vaisnavism. We’re going to look at the way in which Saivism, the religion of the god Siva, presented itself with respect to Vaisnavism. In particular we’ll investigate the role…

Student agency is defined as the ability to increasingly take control of the learning process. It is associated with better grades, well-being, motivation and self-confidence. This research aims to provide teachers tools to stimulate student agency and to monitor its growth.