Classical statistical methods, such as p-values, are difficult for researchers to apply correctly. They for example do not allow drawing conclusions from a study early, or for extending a study with extra research groups that want to make their data available later.

Irene Khan, expert op het gebied van mensenrechten, werpt een aantal vragen op: Wat kan men verstaan onder een ‘Culture of Justice’? Wie bepaalt wat 'Justice' is? Hoe realistisch is de bevordering van ‘Rule of Law’ en ‘Justice’ in landen waar sprake is van ernstige conflictsituaties en armoede?

A single self-assembled semiconductor quantum dot in a high-finesse optical microcavity - the subject of this thesis - is an interesting quantum-mechanical system for future quantum applications. For instance, this system allows trapping of an extra electron and thus can serve as a spin quantum memory,…

Den Haag is, naast Leiden, de tweede moederstad van de Universiteit Leiden.

Het Leiden Bio Science Park (LBSP) is het grootste innovatiedistrict van Nederland op het gebied van Life Sciences & Health. De clustering van hoogwaardig onderwijs, onderzoek, zorg en bedrijfsleven trekt studenten, wetenschappers en ondernemers vanuit de hele wereld naar kennisstad Leiden.

Plants and soils from natural ecosystems harbor great diversity of soil microorganisms, which could potentially contribute to the sustainability of horticulture. The knowledge about using wild plant species and soil from natural ecosystem to improve the crop health will advance the application of ecological…

Duurzaamheid op de campus, energietransitie, groen, circulair

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

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.

Wijnhaven, Turfmarkt 99, 2511 DP, Den Haag

In dit artikel onderzoeken Thijs van Dooremalen en Philip Smith hoe het publieke discours over hittegolven is verschoven in Britse kranten.

The global agri-food system plays a critical role in food security and environmental issues.

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

The thesis explores how interstellar chemistry evolves as a function of time and changing physical architectures during the formation of stars.

The aim of this thesis was to study phage infection in Streptomyces, focused on cell wall-deficient cells. Bacteriophages (or phages in short) attach to the cell wall of bacteria after which they replicate and lyse the host cell.

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 present new laboratory data of interstellar dust analogues.

Acute cardiovascular syndromes, including myocardial infarction or stroke, are the principal cause of death in the Western society. The main underlying pathology of cardiovascular diseases is atherosclerosis, which is caused by the accumulation of lipids and inflammatory cells in the vessel wall, in…

Freshwater is an important resource, but at a great risk of species decline due to habitat loss, pollution and over-exploitation, and invasive alien species.

By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.

This thesis investigates the application of deep learning techniques in image analysis across various domains, focusing on four main themes: feature extraction, classification, segmentation, and integration, demonstrating the transformative potential of these technologies.

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…

The aim of this thesis is to develop and study a robust and adaptable scaffold for supramolecular polymer self-assembly in water.

This thesis focuses on amyloid proteins, a class of proteins that convert into amyloid fibrils.

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

Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).

De Universiteit Leiden is sinds eind jaren negentig gevestigd in twee steden: Leiden en Den Haag. Ook de Faculteit der Rechtsgeleerdheid biedt op de Campus Den Haag onderwijs en onderzoek aan.

Promotor: Prof.dr. M. de Jong

The origin and evolution of galaxies are closely linked to many different physical phenomena.

Self-assembly offers a promising route to create complex structures and materials using simple building blocks. Through, colloidal self-assembly, we can understand the governing principles of the self-assembly process and unlock its potential in diverse applications in materials science, photonics and…

In this thesis, we have studied cell images from two types of cells, including pollen grains and the immune cells, neutrophils. These images are captured using a bright field microscope and a confocal microscope.

Nowadays, it is well known that hydrogen and helium (and small traces of lithium and beryllium) were created shortly after the Big Bang, while the heavier elements are created in the cores of stars at different evolutionary stages. When these stars explode as supernovae, they expel metals synthesised…

The role of the interfacial environment during electrochemical reactions has been increasingly valued, especially for those reactions involving protons or hydroxyl ions.

In de ontwikkeling van de Humanities Campus worden zowel bij de gebouwen als bij het omringende gebied, zoveel mogelijk 'groene keuzes' gemaakt. De verduurzaming van de campus krijgt vorm aan de hand van beoordelingsmethode BREEAM-NL.

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

Participants in this course will learn to support student teachers and new colleagues in their professional development as teachers, with particular emphasis on the context of bilingual or international education, as in the ICLON World Teachers Programme (WTP).

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

Artificial intelligence algorithms govern in subtle, yet fundamental ways, the way we live and are transforming our societies. The promise of efficient, low‐cost or ‘neutral’ solutions harnessing the potential of big data has led public bodies to adopt algorithmic systems in the provision of public…

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).

Kijk regelmatig op deze pagina voor meer informatie over het vergroten van de biodiversiteit aan de Universiteit Leiden.

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

The research described in this thesis focused on the use of bioorthogonal antigens to investigate immunological processes in antigen presenting cells. Bioorthogonal antigens are antigenic proteins produced through recombinant expression in a methionine auxotrophic E. coli strain.

Explaining treatment response variability between and within patients can support treatment and dosing optimization, to improve treatment of individual patients.

Particles are omnipresent in biopharmaceutical products. In protein-based therapeutics such particles are generally associated with impurities, either derived from the drug product itself (e.g. protein aggregates), or from extrinsic contaminations (e.g. cellulose fibers).

This thesis discusses several questions regarding the double ramification cycle as a Chow class on the moduli space of stable n-pointed genus g curves using tools from so-called logarithmic geometry.

Studievoorlichting, Proefstuderen

Jan van den Berg heeft zij proefschrift op 8 november 2018 verdedigd.

Het WARN-project heeft als doel te begrijpen waarom sommige waarschuwingen niet effectief genoeg zijn of niet tijdig de juiste besluitvormers bereiken om een crisis af te wenden.

The thesis describes experimental steps towards reduction of friction on the macroscopic scale by scenarios of thermo- and superlubricity well-known on the nanoscale.