Plant architecture has distinct forms in different plant species, but also within a species the finalarchitecture of a plant is determined by its gradual development and changes therein induced by environmental conditions during the plant’s life cycle.

Machine Learning is becoming a more and more substantial technology for industry.

Synthetic microswimmers take an important place within the interdisciplinary field of active soft matter.

Cryogenic electron microscopy (cryo-EM) is a powerful technique used to visualize the inside of cells and to study specific protein complexes. Within this thesis, I describe the use of various cryo-EM techniques to gain insight into the structural changes of the human pathogen, Vibrio cholerae, as it…

The clinical potential of applying synthetic lethality to cancer treatment is famously demonstrated by the BRCA1/PARP1 paradigm: a tumor specific defect in BRCA1 – a component of the DNA double-strand break (DSB) repair pathway homologous recombination (HR) – results in a remarkable sensitivity to PARP1…

Over several decades, a variety of computational methods for drug discovery have been proposed and applied in practice. With the accumulation of data and the development of machine learning methods, computational drug design methods have gradually shifted to a new paradigm, i.e. deep learning methods…

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

In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.

Promotor: F.S. de Boer, Co-promotor: M.M. Bonsangue

Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M.R.V. Chaudron, Co-Promotor: M.T.M. Emmerich

Promotor: Prof.dr. A.P. IJzerman, Co-Promotor: L.H. Heitman

This thesis describes the structural and biochemical characterization of the β-lactamase BlaC from Mycobacterium tuberculosis (Mtb), and the Alr and YlmE proteins from Streptomyces coelicolor A3(2).Mtb is the main cause of tuberculosis.

Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

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

Mechanical metamaterials are man-made materials which derive their unusual properties from their structure rather than their composition.

Promotor: Prof.dr. E. Bouwman, Co-Promotor: S. Bonnet

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.

Systems with local constraints is a new finding in recent researches on complex systems. The heterogeneous spatial interactions and the temporal dependencies among those numerous units make it difficult to describe by traditional statistical physics.

Tuberculosis is a major global health problem caused by the Mycobacterium tuberculosis complex, claiming more than a million lives annually.

The endophytic microbiota is a community of various microorganisms that reside in plant tissue. These microbes are known to promote plant health and resilience, and their members do not simply exist side by side.

Jessica Barr and Barbara Zimbalist invite essays that examine any aspect of race and religion in medieval culture and society for a special issue on race and religion in the Middle Ages. Deadline for submission: 1 February 2021.

Het collegeaanbod op het gebied van de filosofie, levensbeschouwing en religie.

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.

Promotor: Prof.dr. C.U. Keller, Co-promotor: Frans Snik

M.T.M. Koper, Co-promotor: D.G.H. Hetterscheid

Single-Molecule Microscopy (SMM) techniques constitute a group of powerful imaging tools that enable researchers to study the dynamic behavior of individual molecules.

Sinds haar oprichting is Universiteit Leiden de thuisbasis van geleerden met een brede en diverse expertise in de geschiedenis, talen, literatuur en materiële culturen die relevant zijn voor de studie van Joden en het Jodendom vanaf de oudheid tot de moderne tijd.

Nicotinamide adenine dinucleotide (NAD+) is the substrate used for the introduction of the ubiquitous and highly dynamic PTM in which either one or multiple adenosine diphosphate ribose (ADPr) moieties are covalently attached to a nucleophilic side chain of an specific amino acid in the target protein…

The outbreaks of AIDS and COVID-19 showed clearly how infectious viruses can influence people’s lives. Investigating the changes in the host metabolism may provide a paradigm shift to consider immune-metabolic interactions as therapeutic targets.

De Leiden Teachers’ Academy organiseert jaarlijks een symposium over onderwijsvernieuwing aan de Universiteit Leiden.

Het collegeaanbod op het gebied van actuele wereldproblemen en van maatschappijwetenschappen als politicologie, rechten, economie e.d.

Promotor: T. Hankemeier, Co-promotor: R.J. Vreeken

This thesis deals with the use of sound in interactions in the context of participatory systems and data sonification. We investigate an interactive environment where participants perceive information of the data through sound elements.

Promotor: J.W.M. Frenken Co-Promotor: R. Felici

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L.B.F.M. Waters (UvA), Prof.dr. C. Dominik (UvA)

Neuraminidases are enzymes that cleave glycosidic linkages of sialic acid. These enzymes are involved in influenza infections as well as in many cellular processes in mammals and micro-organisms.

How are new drugs developed? This question is central to the Minor Modern Drug Discovery (MDD), which covers the entire trajectory from disease to drug molecule and vice versa. The various research groups involved offer a complementary and interdisciplinary perspective by connecting the diverse subjects…

Er wordt vaak geclaimed—in zowel academische als populaire publicaties—dat blindegeleidehonden een moderne uitvinding zijn. Maar hulphonden bestonden ook tijdens de Middeleeuwen, zoals dit project aantoont.

Computational thinking, programming, and algorithms form the basic of many of the things that are shaping our world, the way we work, interact, organize ourselves, and even spend our free time with social networks, streaming media, and games. And this transformation is far from being complete, it is…

Investigating the intercultural connections that shaped practices of knowledge production in colonial Dutch Brazil.

The IGTM workshop "Rules, Regulations, and Regimes in Medieval Religion" (21 June 2023) for graduate students and junior scholars, in which early career scholars have the opportunity to discuss their research with peers and senior referents in an informal setting, takes the 800th anniversary of the…

Firearms and violence in Europe–A systematic review by Katharina Krüsselmann, Pauline Aarten, Marieke Liem

In 2011 en 2012 zijn verschillende projecten uitgevoerd gericht op de ondersteuning van de implementatie van de Kennisbasis bij de tweedegraads lerarenopleidingen Duits en Frans.

Om de Leidse papyrologie te versterken is in 2014 de Papyrologie+ (spreek uit: papyrologie-plus) groep opgericht, een samenwerkingsverband van alle onderzoekers van de Leidse Universiteit die zich bezighouden met (Abnormaal-) Hiëratische, Demotische, Aramese, Griekse, Latijnse, Koptische en Arabische…

The extensive use of electronic communication channels and other devices has opened new possibilities for collecting data on human behavior. This information is sometimes openly accessible, but largely part of administrative registration systems that are not open to the broader public. The data provides…

In this dissertation non-parametric Bayesian methods are used in the application of robotic vision.

Leidse alumni komen op zeer diverse plekken terecht. De verhalen van onze alumni verzamelen we en publiceren we regelmatig in onze alumni nieuwsbrief en alumnimagazine Leidraad. Op deze pagina zijn al deze interviews terug te vinden. Ze brengen mooi in beeld hoe het Leidse alumni na hun afstuderen is…

In this special edition of Information Polity there is a focus on the transparency challenges of using algorithms in government in decision-making procedures at the macro-, meso-, and micro-levels.