How presence, abundance and enzymatic activities of AM and EM fungi differently affect soil carbon sequestration processes?

Promotores: Prof.dr. J. Kuiper, Prof.dr. P.H.A. Quax, Co-promotor: I. Bot

The disease acute myeloid leukemia (AML) is characterized by fast progression and low survival rates.

The filamentous bacteria Streptomyces are widespread inhabitants of terrestrial soils.

Sewer pipes are an essential infrastructure in modern society and their proper operation is important for public health. To keep sewer pipes operational as much as possible, periodical inspections for defects are performed.

“Temminck’s Order” is the scientific biography of Coenraad Jacob Temminck (1778–1850), a Dutch naturalist and the first director of ’s Rijks Museum van Natuurlijke Historie in Leiden.

This thesis focuses on data found in the field of computational drug discovery. New insight can be obtained by applying machine learning in various ways and in a variety of domains. Two studies delved into the application of proteochemometrics (PCM), a machine learning technique that can be used to…

Ice, the solid state of water, plays an important role on our planet as well as the entire universe.Despite the fact that an individual water molecule has a very simple structure, its chemical bonding in the solid phase can be surprisingly complex.

Filamentous Actinobacteria, such as Streptomyces, produce a plethora of chemically diverse bioactive metabolites that have found applications across medicine, agriculture and biotechnology.

Bacterial biocatalysis constitutes a sustainable alternative for high-value chemicals production by enabling the utilization of renewable feedstocks.

The parabolic Anderson model (PAM), which is the Cauchy problem for the heat equation with random potential. The PAM is a mathematical model that describes how mass (i.e. matter or energy) flows in a medium in the presence of a field of sources and sinks.

Promotores: T.H.W. Bäck, Y. Tan, Co-promotor: M.T.M. Emmerich

The basic program comprises a total of twelve courses organized by the Research School, that have been purpose-developed for training and support of PhD students and Research MA students who specialize in Medieval Studies (history, art history, and literary history, in particular).

Leuk dat je mee wilt doen met de Legal Tech Challenge. We nemen contact met je op om even kennis te maken en de details te bespreken.

Vastklampend of claimend gedrag, hoe ga je daarmee om?

Promotor: Prof.dr. P.G.L. Klinkhamer, Co-Promotor: T.J. de Jong

Heb je interesse om Russische Studies te komen studeren aan de Universiteit Leiden? Om je een indruk te geven het leven als student, vertelt Anne van der Spoel, eerstejaarsstudente over een typische dag.

Jaarlijks sluiten we de PRE-Classes af met een slotevenement, waar verschillende leerlingen hun resultaten presenteren. Kijk de presentaties van 2017 hieronder terug!

Promotor: C.A.J. Knibbe, Co-promotor: J.J. Boelens, R.G.M. Bredius

Promotor: Prof.dr. J. Kuiper

While ecosystems have concrete benefits for human society, these benefits are typically overlooked in decision-making.

Does a high quality prairie restoration in an urban/agricultural landscape provide invertebrates necessary for a sustainable ecosystem?

Promotores: H.A. Udo De Haes, P.M. Brakefield

This dissertation is an experimental study of laser-generated, atmospheric pressure, transient toroidal helium plasmas.

Op 28 oktober 2021 verdedigde Hein van der Bruggen zijn proefschrift en behaalde daarmee de doctorstitel.

Metal-based prodrugs based on ruthenium(II) polypyridyl complexes have proven to be very suitable for application in both photodynamic therapy (PDT) and photo-activated chemotherapy (PACT).

In this thesis,

The project Multimedia Research and Documentation of African Oral Genres: Connecting Diasporas and Local Audiences (Director: D.Merolla) focuses on multimedia as technology that allows scholars to share documentation and scientific knowledge with the cultural owners of the collected oral genres.

G protein-coupled receptors (GPCRs), one of the largest families of membrane proteins, are responsive to a diverse set of physiological endogenous ligands including hormones and neurotransmitters.

The external tissues of plants and animals are colonized by microbial communities termed microbiota. When organisms are exposed to environmental pollutants, these substances will therefore encounter microbiota at the exposure interface.

Lysosomal storage disorders (LSDs) are a group of orphan diseases characterized by lysosomal dysfunction or impaired lysosomal catabolism and affect collectively about 1 in 5000 live births.

Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.

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

Stellar feedback is a crucial ingredient in the evolution of galaxies.

Je jaar in medezeggenschap is al een tijdje onderweg, hetzij in de Universiteitsraad, een Faculteitsraad, een Instituutsraad, een Ondernemingsraad of in de opleidingscommissie van je opleiding. Hopelijk heb je een goede start gemaakt en kijk je er naar uit om komend jaar je beste beentje voor te zet…

Promotores: R. Cramer, A.K. Lenstra, Co-Promotor: B.M.M. de Weger

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

Time-series forecasting through modelling sequences of temporally dependent observations has many industrial and scientific applications. While machine learning models have been widely used to create time-series forecasting models, creating efficient and performant time-series forecasting models is…

This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.

Heart failure is a major health care problem with high mortality.

Promotor: Prof.dr. M. Schilthuizen

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 electrochemical oxygen reduction reaction (ORR) is an essential half-reaction for the utilization of hydrogen as a sustainable fuel, via the conversion of hydrogen to electrons and protons facilitated by the ORR. In the most common fuel cells, the ORR is requires high loadings of non-abundant platinum…

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.

The glycosylation reaction is a pivotal reaction in creating new and complex oligosaccharides.

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.

Self-assembly is an abundant process in nature and is vital to many processes in living organisms.

Op 11 november 2021 verdedigde Evelien Campfens het proefschrift 'Cross-border Claims to Cultural Objects'. Het promotieonderzoek is begeleid door prof.dr. N.J. Schrijver en prof.dr. W.J. Veraart (VU Amsterdam).

Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.

Op 23 februari 2022 verdedigde Cale Davis het proefschrift 'Prosecutorial Discretion in International Criminal Justice'. Het promotieonderzoek is begeleid door prof.dr. C. Stahn en dr. J.C. Powderly.