De afdeling Staats- en Bestuursrecht van de Universiteit Leiden heeft een bundel gepubliceerd over de vraag of de historisch gegroeide combinatie van de concepten van democratische legitimiteit en de scheiding van machten mogelijk blijft buiten de context van de traditionele staat, en indien dit mogelijk…

Bacteria are highly complex and diverse organisms that have adapted to survive in ecological niches ranging from the most extreme to the most heterogeneous environments.

Deelproject van “

Understanding how galaxies form, interact, and evolve comes largely from comparing theory predictions with observational data. Numerical simulations of galaxies provide the most accurate approach to testing the theory, as they follow the non-linear evolution of gas and dark matter in great detail and…

The aims of the project are to: further clarify 'inhibition by safety'; explore and describe all possible sagety factors, with a special focus on the primary human safety source: social connectedness; reviewing prolonged stress responses without stressors.

Het voorgestelde project evalueert hoe de kwetsbaarheid van migrantenmannen en -vrouwen werd geconstrueerd in politieke, publieke en mediadiscoursen, en hoe verschillen in de geconstrueerde kwetsbaarheid van invloed waren op de beslissing om te migreren, het migratieproces en het daaropvolgende vest…

Van Galileo Galilei tot Albert Einstein, van Anna Maria van Schurman tot Anton de Kom: het is slechts een greep uit 25 auteurs die met hun boeken en ideeën een buitengewone invloed hebben gehad op de wereld, soms zelf tot nu. De Universitaire Bibliotheken Leiden en het Rijksmuseum van Oudheden organiseren…

Het was weer gezellig druk in het Rijksmuseum van Oudenheden! Op 22 juni is de zomertentoonstelling ‘Books that made History’ van Universitaire Bibliotheken Leiden (UBL) en het Rijksmuseum van Oudheden (RMO) geopend. In de tentoonstelling zijn 25 Leidse boeken uit de collecties van de UBL te zien die…

In June 2024, the University of Groningen organizes a summer school, titled "Things that Matter". The Summer School explores challenges in digitizing source materials, questioning distinctions between physical and digital copies. It delves into the impact of virtual collections and criteria for digitization,…

In de serie tafelgesprekken ‘Van kluis naar kussen’ krijgt de kijker een blik achter de schermen van de Bijzondere Collecties. In deze speciale uitzending staat de zomertentoonstelling 'Books that made History' van de Universitaire Bibliotheken Leiden en het Rijksmuseum van Oudheden centraal. In de…

Presents a novel philosophical account of psychedelic experiences, arguing that they can be induced by means other than psychedelics — such as meditation and yoga.

Op Things That Talk, een website opgericht en ontwikkeld door Fresco Sam-Sin, beschrijven studenten en onderzoekers objecten van vandaag en lang geleden. Inmiddels zijn meer dan honderd objecten aan bod gekomen. Willemijn Waal, Emma Verweij en Frank van den Boom werken mee aan de content.

Promotie

In this thesis, two potential therapeutic targets for diabetic nephropathy were dentified and investigated. First, we show that glomerular clusterin is upregulated in diabetic nephropathy and demonstrated that recombinant clusterin protein can protect the podocytes against oxidative stress in vitro.…

BlaC is the β-lactamase of Mycobacterium tuberculosis. We show that it can recover from inhibition by clavulanic acid and that phosphate helps it do so.

Atherosclerosis is the most important underlying process that drives cardiovascular disease, and is characterized by an accumulation of cholesterol which triggers an inflammatory response in the vessel wall.

The research presented in this thesis concerns one of the most important questions in software engineering of our time: how can we make sure that software is free from memory safety bugs?

This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.

Metal complexes and 2D materials like graphene were combined to produce structures that can function as sensors.

Promotor: H.V.J. Linnartz

Natural resources often stretch across borders that separate modern nation states. This can create conflict and limit opportunities for regulated consumption of their goods and services, but also provide opportunities for joint multinational efforts that exceed single country capabilities.

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.

Promotor: Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Univ. de Bordeaux)

Promotor: Prof.dr. B. van de Water

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.

This thesis describes the functional analysis of the Arabidopsis AHL15 gene.

In this thesis,

The complexity of an intelligence problem determines to a great extent the certainty that can be provided by intelligence and security services.

Promotor: P.M. Brakefield

In this thesis we study the moduli space of genus g curves, and the differential forms that occur naturally on this moduli space.

Promotores: Prof.dr. H Lenstra, Prof.dr. A Facchini (Padova University)

Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik

This thesis is is made of three parts. The first part describes a generalization of the Chabauty's method, that can be used to determine the rational points of a curve such that s+g>r+1, where g is the genusof the curve, r is the rank of the Mordell-Weil group of the jacobian of the curve and s is…

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

Promotor: S.M. Verduyn Lunel

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

Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.

Drug development is a time- and resource-consuming process that starts with the discovery and validation of a (protein) target that contributes to pathogenesis or disease progression.

Promotor: Prof.dr. E.F. Smets. Co-promotores: B. Gravendeel, F. Pupulin

Promotor: J. Zaanen, Co-Promotor: V. Juricic

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

This thesis deals with properties of Jacobians of genus two curves that cover elliptic curves.

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.

In this thesis, we used genetically engineered mouse models and a variety of cell-culture based assays to identify genes and pathways that are involved in the development and treatment of invasive lobular carcinoma (ILC).

Over the last decades, aviation safety has improved strongly. As a downside, airline pilots do not have as many opportunities to develop through experience the competencies that they need in critical situations.

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

Synthetic hydrogels that mimic the natural extracellular matrix in the biophysical and biochemical cues it provides to cells are in high demand, however the cell phenotypes as they are observed in vivo in numerous cases have yet to be attained.

CREEA is a FP7 project on compiling and refining environmental and economic accounts. The project runs from April 2011 to March 2014.

This thesis contains results on the arithmetic and geometry of del Pezzo surfaces of degree 1.In Chapter 1 we give the necessary background, assuming the reader is familiar with algebraic geometry.

This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants⁠.