The thesis explores how interstellar chemistry evolves as a function of time and changing physical architectures during the formation of stars.

How did galaxies form? How did galaxies evolve?

The thesis describes experimental steps towards reduction of friction on the macroscopic scale by scenarios of thermo- and superlubricity well-known on the nanoscale.

Ending the United Kingdom’s (UK) forty-seven year European Union (EU) membership has fundamentally transformed its relationship with the EU. After years of tumultuous negotiations, international law now once again governs the UK’s relationship with the EU. This has resulted in a sophisticated body of…

Across many decision-making tasks, people and animals systematically repeat (or alternate) their choices - even when the choices they make are intrinsically uncorrelated. This phenomenon (also known as 'sequential effect' or 'choice hysteresis') has been known for at least a century, and may be a stable…

Despite an increased EU role in the preparedness, monitoring and coordination of health emergencies over the past two decades, Member States’ responses to the first wave of COVID-19 were surprisingly uncoordinated. In light of calls to improve cooperation regarding future health emergencies, this article…

A single self-assembled semiconductor quantum dot in a high-finesse optical microcavity - the subject of this thesis - is an interesting quantum-mechanical system for future quantum applications. For instance, this system allows trapping of an extra electron and thus can serve as a spin quantum memory,…

This thesis focuses on amyloid proteins, a class of proteins that convert into amyloid fibrils.

The studies described in this thesis deal with glycosidases, in particular alpha-galactosidases.

This thesis focuses on the role of chemokine receptors CXCR3 and CCR2 in the inflammatory process and infection control using the zebrafish model.

The origin and evolution of galaxies are closely linked to many different physical phenomena.

In this thesis, we aim to shed light on the diverse and often opposing roles of integrin α3β1 in cancer.

How do educational philosophies, discourses and practices spread around the globe, and how are they transformed and adapted locally?

During the period 500–1000 CE Egypt was successively part of the Byzantine, Persian and Islamic empires. All kinds of events, developments and processes occurred that would greatly affect its history and that of the eastern Mediterranean in general. This is the first volume to map Egypt's position in…

Pursuing Whiteness in the Colonies offers a new comprehension of colonial history from below by taking remnants of individual agencies from a whiteness studies perspective. It highlights the experiences and perceptions of colonisers and how they portrayed and re-interpreted their identities in Afric…

In this thesis, I focused on studying the above- and belowground interactions of J. vulgaris from a plant-soil feedback (hereafter, PSF) perspective. I investigated the temporal variation of negative PSF and examined the effects of root-associated bacteria on plant performance and aboveground herbiv…

Subproject of

Plants and soils from natural ecosystems harbor great diversity of soil microorganisms, which could potentially contribute to the sustainability of horticulture. The knowledge about using wild plant species and soil from natural ecosystem to improve the crop health will advance the application of ecological…

Which criteria do ED patients and therapists evaluate as most relevant for recovery? Do patients and therapists differ in their evaluations? Do eating disorder patients differ from a healthy control group in their scores on the Recovery Scale?

How to reconstruct the middle parts (videlicet haute-contres, tailles and quintes) from French orchestral pieces, which survived only in their reduced forms (featuring primarely dessus and continuo), according to historical examples?

The European Registry of Exonerations database provides an overview of miscarriages of justice in Europe with a view to preventing future errors.

French title: Communication et violences dans le Guéra et le Moyen-Chari (Tchad) de 1940 à 2010. This research investigates the relationship between the introduction of new means of communication and violence experienced by the local populations in the Moyen-Chari and the Guéra regions in Chad from…

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

On November 1st, Min Liu succesfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Min on this great result.

Self-assembly offers a promising route to create complex structures and materials using simple building blocks. Through, colloidal self-assembly, we can understand the governing principles of the self-assembly process and unlock its potential in diverse applications in materials science, photonics and…

By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.

Promotor: G.J. Kramer Co-Promotor: E.G.M. Kleijn

Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.

The aim of this thesis is to develop and study a robust and adaptable scaffold for supramolecular polymer self-assembly in water.

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.

Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).

Providing a valuable overview of regionalism throughout the entire continent, Regionalism in Modern Europe combines both geographical and thematic approaches to examine the origins and development of regional movements and identities in Europe from 1890 to the present.

Ramesh Ganohariti will examine legal identity in three post-Soviet aspirant states and outline four common scenarios in this article.

Leiden-Yale collaboration uncovers a tale of samurai same-sex love in a library manuscript.

Homicide engenders broad moral concerns in society, and its aftermath can be understood as a barometer for criminal justice policy. Of all homicides committed, however, only some lead to arrest, to prosecution and ultimately to conviction in court.

Acute cardiovascular syndromes, including myocardial infarction or stroke, are the principal cause of death in the Western society. The main underlying pathology of cardiovascular diseases is atherosclerosis, which is caused by the accumulation of lipids and inflammatory cells in the vessel wall, in…

The Sport Data Center wants to unravel the secrets of Dutch and Brazilian football, together with a diverse group of partners. Furthermore, the consortium will in both countries measure the health risks that arise from being bound to a wheelchair.

Mr. Ade Jaya Suryani defended his thesis on 28 January 2021

Can zebrafish larvae be used as a behavioural model for screening natural products as potential neurotropic drugs?

This book is the first comprehensive presentation of the archaeology of Syria from the end of the Paleolithic period to 300 BC.

On 9 June 2023, the workshop on ‘Academic Freedom and its Philosophical Underpinnings in EU law’ took place at the Academy Building, Leiden. It was organized in the framework of the Vidi research project The EU fundamental right to ‘freedom of the art and sciences': exploring the limits on the commercialisation…

Using E. coli bacteria to convert a toxic compound in the soil on Mars into oxygen to make life on the planet possible. A team of thirteen Leiden students are taking part in the annual iGEM competition with an entry based on this idea. iGEM is an international competition for students where they use…

Saskia Bruines, alderman for Education, Knowledge Economy and International Affairs in The Hague, and Erwin Muller, Chair of Campus The Hague, opened an exhibition about 20 years of Campus The Hague on 4 September. The exhibition in the Atrium of City Hall in The Hague focuses on the links between the…

How can computers help design optimal buildings? PhD student Koen van der Blom makes algorithms that take into account all kinds of different architectural requirements, in order to reach the best compromise. And that is quite difficult: 'Algorithms do not automatically understand that a building that…

This report concerns itself with terrorist technical innovation, particularly with regards to terrorists’ incorporation of emerging technologies into their practices. More specifically, it investigates, through the elaboration of a theoretical learning framework, how terrorist groups can adopt the practices…

“BABYLON” investigates the extent of the similarities between Babylonian and post-exilic forms of cultic and social organization and explores the question how Babylonian models could have influenced the restoration effort in Jerusalem.

The origin and evolution of galaxies are closely tied to the cyclic feedback processes between stars and the interstellar medium (ISM).

Promotor: C.A.M.J.J. van den Hondel, Co-promotor: Sandra de Weert

Promotor: Prof.dr. J.W.M. Frenken

The sixth issue of Ex Novo explores how ‘peripheral’ regions currently approach both the practice and theory of public archaeology placing particular emphasis on usually underrepresented regions of Eastern and Central Europe, the Mediterranean and beyond.