Bas Rietjens en zijn collega's onderzochten de oorlog tussen Rusland en Oekraïne en onderzochten deze veelvoud aan facetten en hun onderlinge verbanden.

A brief review essay on some of the work that has been recently published in the emergent field of digital ethnography.

De Nederlandse politiek was lange tijd een toonbeeld van stabiliteit. Denk bijvoorbeeld aan ons overzichtelijke partijenstelsel tot pakweg het laatste decennium. Tegelijkertijd zien we ook incidentele veranderingen en aanzienlijke verschuivingen. De maatschappij is veranderd en dit vindt zijn weerslag…

Leidse wetenschappers onderzoeken groepsgedrag. Ze ontdekten onder meer dat mensen zich waarschijnlijk instinctmatig opofferen voor een mede-groepslid. Met dit soort inzichten kunnen we sociale processen in een wijk of binnen een bedrijf beter begrijpen en beïnvloeden.

In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.

Review of new technical decisionsupport systems in the environmental field, and application in water management decission processes.

It is an established fact that the Standard Model has to be extended to explain the so-called Beyond the Standard Model (BSM) phenomena: dark matter, matter-antimatter asymmetry of the Universe and neutrino flavour oscillations.

Promotor: Prof.dr. M.T.M. Koper, Co-Promotor: F. Calle-Vallejo

Op 13 januari 2022 verdedigde Pie Habimana het proefschrift 'Harmful Tax Competition in the East African Community'. Het promotieonderzoek is begeleid door prof.dr. H. Vording en prof.dr. S.C.W. Douma (UvA).

In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.

The field of exoplanet research is rapidly advancing through the development of new technology, observing techniques, and post-processing methods.

Promotoren: R. Tijdeman, A.K. Lenstra, Co-promotor: H.J.J. te Riele

Multicopper oxidase, laccase, can efficiently reduce oxygen to water and are mostly used in the enzymatic biofuel cells.

Op 11 november 2021 verdedigde Mariana Gkliati het proefschrift 'Systemic Accountability of the European Border and Coast Guard'. Het promotieonderzoek is begeleid door promotoren prof.dr. P. Rodrigues en prof.dr. L. Besselink (UvA).

Promotor: Prof.dr. M. Schilthuizen

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

Trigonostemon Blume is a plant genus in the family Euphorbiaceae comprising 59 species.

In this thesis, rational points on K3 surfaces are studied. In the first part of Chapter 1 the Brauer group and the the Brauer-Manin obstruction are introduced.

Artificial photosynthesis has recognised potential to produce green and sustainable fuels from earth-abundant resources such as water, carbon dioxide (CO2), and sunlight.

Op 8 juli 2020 verdedigde Andres Sarmiento Lamus zijn proefschrift 'The Proliferation of Dissenting Opinions in International Law'. Het promotieonderzoek is begeleid door promotoren prof.dr. L.J. van den Herik en prof.dr. Y.A.A.S. Radi (UCLouvain).

Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk

Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens

Op 10 november 2021 verdedigde Carmel van Niekerk-Jacobs het proefschrift 'Realising the right to reproduce with assistance in South Africa'. Het promotieonderzoek is begeleid door prof.dr. J.J. Sloth-Nielsen en prof.dr. T. Liefaard.

Promotor: Prof.dr. F. den Hollander, G.Maillard

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

Op 16 juni 2020 verdedigde Andrea Varga haar proefschrift 'Establishing State Responsibility in the Absence of Effective Government'. Het promotieonderzoek is begeleid door promotoren prof. dr. N.J. Schrijver en prof. dr. F. Baetens (University of Oslo).

Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: M. Haverkorn

Due to the almost complete disappearance of the archive of the Old Dutch West India Company (WIC, 1621-1674) not much is known about the ships and crews of this company. In this project we start the reconstruction of this basic information making use of new digital humanities techniques to extract this…

Geesteswetenschappen, Centre for the Arts in Society

Promotor: P.G.L. Klinkhamer, Co-Promotores: K. Vrieling, P.P.J. Mulder

The availability of indicators based on social media has opened the possibility to track the online interactions between social media users and scholarly entities.

There are many interpretations of quantum mechanics, and ultimately experiments are needed to verify or falsify these interpretations.

Promotor: S.J. Edixhoven, L.D.J. Taelman

This pioneering project will answer this question by examining migrants through the eyes of the courts between 1600 and 1900. It aims to reveal patterns of continuity and change in: 1. Treatment of migrants by criminal courts; 2. Violence and conflicts between migrants and native born.

This thesis addresses the chemical processes that determine the compositions of giant planet atmospheres.

There is concern about the threat that nanoplastics (NPs) may pose to both wildlife and humans. This thesis explores the mechanisms of toxicity of polystyrene nanoparticles (PS-NPs) in chicken embryo.

The overarching clinical aim of this thesis was to improve pharmacological pain management by characterizing the pharmacodynamics of analgesics. This promotion has been awarded the predicate cum laude.

Development of an aggregated impact indicator to measure decoupling.

The Standard Model (SM) of particle physics fails to explain several observed phenomena and is incomplete. In order to resolve this problem, one may extend the SM by adding new particles.

Cardiovascular diseases are the primary cause of death in the world with atherosclerosis as primary underlying cause.

In his dissertation Michiel Hooykaas outlines the results of six empirical research projects focused at biodiversity awareness in the Netherlands, specifically people’s knowledge about animals.

Promotor: K. Kuijken, Co-Promotor: H. Hoekstra

This thesis describes the genetic and prokaryotic diversity of giant barrel sponges.

Promotor: T. H. Oosterkamp

Op 1 april 2020 verdedigde Marc Broekema zijn proefschrift 'Cognitive Bias in the Judgment of Business Valuations and Valuators'. Het promotieonderzoek is begeleid door promotor prof. dr. J.I. van der Rest.

This paper describes the development process of voting behavior in Chile; particularly the relationship between the class voting theory and the theory of cultural post-materialist vote is investigated. This research deals with Chile as a case study, a developing country with a relatively stable democracy…

Promotores: Prof.dr. J. Zaanen, Prof.dr. K.E. Schalm

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.

We investigate the buildup of galaxies from various vantage points. The first two chapters focus on the stellar content of galaxies, especially the distribution of stellar masses at birth and potential variations therein in various galactic environments.

Op 21 maart 2019 verdedigde James Welch zijn proefschrift 'The Grotius Sanction: Deus Ex Machina. The legal, ethical, and strategic use of drones in transnational armed conflict and counterterrorism'. Het promotieonderzoek is begeleid door promotor prof. dr. P.B Cliteur.