Natural history collections provide invaluable sources for researchers with different disciplinary backgrounds, aspiring to study the geographical distribution of flora and fauna across the globe as well as other evolutionary processes.

Historische migratiestudies hebben zich lange tijd voornamelijk gericht op de Europese en Atlantische wereld. In dit programmatische langetermijnproject willen we het perspectief verbreden naar de volledige migratie-ervaring van de niet-westerse wereld.

Promotores: S.F. Portegies Zwart, E. M. Rossi

De master History van de Universiteit Leiden heeft een sterk internationaal karakter en focust op Europese- en niet-Europese geschiedenis vanuit een globale context.

The main aim of this project is to reveal and unravel the invisible histories of the UN, transcending the dominant Western perspective to recover the historical agency of Global South actors. The research will investigate how the UN has both facilitated and limited their role in shaping global order…

Het masterprogramma van Arts and Culture aan de Universiteit Leiden heeft een unieke positie op de kruising tussen kunstgeschiedenis en museologie. Door middel van toonaangevend interdisciplinair onderzoek geeft deze opleiding een sterke academische basis voor een verscheidenheid aan carrières in musea,…

De Research Master Geschiedenis is een intensieve onderzoeksmaster, ideaal voor studenten die een PhD of een carrière in onderzoek ambiëren. In dit tweejarige programma krijg je alle mogelijkheden om onder begeleiding van academische experts van het Leidse Instituut voor Geschiedenis je eigen interessegebied…

Learning from small data sets in machine learning is a crucial challenge, especially when dealing with data imbalances and anomaly detection. This thesis delves into the challenges and methodologies of learning from small datasets in machine learning, with a particular focus on addressing data imbalances…

Promotor: Prof.dr. M. de Jong

Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven

De master Ancient History van de Universiteit Leiden biedt een compleet en breed overzicht van de geschiedenis van de Griekse en Romeinse periode, met speciale aandacht voor de denkwijze en de sociaal-economische geschiedenis in de periode van 400 v.Chr – 400 na Chr.

Biological cells, the basic building blocks of all life forms, are surrounded by a lipid membrane. More than half of the membrane is occupied by membrane proteins, which can regulate the cell functionality through specific arrangements.

Promotor: J.N. Kok, Co-Promotor: A.J. Knobbe

When a star gets too close to a supermassive black hole, it is torn apart by strong tidal forces in a tidal disruption event (TDE).

Patients share valuable advice and experiences with their peers in online patient discussion groups.

The intracluster medium (ICM) is a hot, tenuous and X-ray emitting gas that pervades galaxy clusters.

Patterned detectors are an existing technology that can be found in almost all color cameras.

Speeches en toespraken zijn cruciaal geweest bij het oplossen van de vraag die centraal staat in elk politiek debat: wie krijgt wat, wanneer en waar?

Throughout the history of computer science, a major challenge has been how to assert that software is free of bugs and works as intended. Software bugs can lead to serious negative impacts on any software system. Throughout the main body of the thesis, we implemented a series of studies on exploring…

The work presented in this thesis is based on ALMA surveys of protoplanetary disks in three star-forming regions: Lupus, OMC-2, and NGC 2024.

For optimization problems, it is often unclear how to choose the most appropriate optimization algorithm. As such, rigorous benchmarking practices are critical to ensure we can gain as much insight into the strengths and weaknesses of these types of algorithms.

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

Vanaf de koloniale tijd tot heden hebben grote aantallen Javanen hun woonplaats verlaten om zich in andere delen van Indonesië of veel verder weg te vestigen. Vaak was deze spreiding gedwongen, vaak met traumatische gevolgen.

Kunst en vrije tijd, Kunst en vrije tijd

This project uses archaeological, literary and epigraphic evidence to investigate urban development in Roman-period North Africa, compiling this in a GIS-linked database in order to analyse the development of urban settlement spatially over time.

Promotor: Prof.dr. A.G.G.M. Tielens, Prof.dr. C. Dominik (UvA)

Galaxies form and live inside dark matter haloes. As a consequence, they are exposed to the tidal fields generated by the surrounding matter distribution: this imprints a preferential direction to the galaxy shapes, which leads to a coherent alignment on physically close galaxies, called intrinsic a…

Promotor: J.P. Abrahams, Co-promotor: T. Grüne

Promotor: Roeland M.H. Merks

How were the Russians, under early modern conditions, able to incorporate this distant, undeveloped and, because frequent nomadic attacks, dangerous territory? And what role did the Kolyvan-Voskresensk plants play in this process?

In dit artikel onderzoeken Wout Broekema, Wouter Jong en Sara Perlstein het ontwerp en de beoordeling van crisisonderzoeken vanuit een leerperspectief.

Hydrocarbonylation of alkenes with carboxylic acids in synthesis of carboxylic acid anhydrides is relatively less explored. We herein present a study and optimization of a palladium-catalyzed hydrocarbonylation reaction of alkenes using carboxylic acids as the nucleophile, by which acid anhydrides can…

The marine shipping industry is one of the strongest emitters of nitrogen oxides (NOx), a pollutant detrimental to ecology and human health. Over the last 20 years, the pollution produced by power plants, the industry sector, and cars has been decreasing.

Promotor: Ronald Cramer, Co-promotor: Serge Fehr

Stars like the sun are born in large molecular clouds existing from gas and dust. During the formation process, the chemical composition of the material can be altered drastically by the changing physical conditions.

Promotores: Prof.dr. M. Franx, Prof.dr. P.G. van Dokkum (Yale University)

Almost three years after receiving her honorary doctorate, Dr Graça Machel returned to Leiden University. Over the course of two days she spoke with students, researchers, and other interested persons, about human rights – particularly those of women and children – in a world in which these are continually…

The class-imbalance problem is a challenging classification task and is frequently encountered in real-world applications. Various techniques have been developed to improve the imbalanced classification performance theoretically and practically.

In this thesis, we study different curved single crystals because of the diversity of surface structures across their curvature.

In our research protein translocation from Agrobacterium into yeast and plant cells is studied to obtain fundamental insights in the translocation process

Carbohydrates are present on the surface of bacteria making them suitable antigen candidates for vaccine development. This thesis deals with the synthesis of two carbohydrate-based components; the capsular polisaccharide of S. aureus type 5 and teichoic acids from staphilococci and enterococci speci…

This thesis advances automata learning, a key area in computer science, with applications in software verification, biological analysis, and autonomous technologies. It explores three main themes: first, it introduces a passive learning algorithm for generating compact probabilistic models from positive…

Wat doe je als je iets te weten wilt komen? Tegenwoordig gebruikt men voornamelijk het internet om informatie te verkrijgen. Een lezer moet deze informatie vaak uit meerdere bronnen halen en die bronnen met elkaar in verband brengen, om zo een compleet plaatje te vormen van het onderwerp. Soms is de…

Large areas of space are filled by molecular clouds that consist of gas and dust grains that are the remnants of dead stars. When these clouds start collapsing, the decreasing temperature and increasing density cause gas particles to start accreting onto dust grain surfaces.

The aim of this thesis is to expedite and ensure the systematic accuracy of clearance scaling from adults to paediatric patients, with a special focus on drugs undergoing hepatic metabolism.

In this course, you will explore the organs involved in our food digestion and discover the common causes of abdominal and pelvic pain. The latest graphics and animations will give you new insights and understandings of this part of the body.

Glycoconjugate vaccines are composed of microbial poly- or oligosaccharides covalently linked to a carrier protein.

Promotor: G.P. van Wezel, Co-promotor: Y.H. Choi

In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.