In the early universe, the dynamics of the Higgs field can give rise to many interesting phenomena.

Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.

Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

Promotor: B.van de Water, Co-promotor: L.S.Price

The plant hormone auxin plays a central role in the growth and development of plants. Auxin acts in a concentration dependent manner and polar cell-to-cell transport of this hormone determines its distribution in the tissues of plants. This polar auxin transport is mediated by several families of auxin…

In this PhD-thesis several new and existing data science application are described that are particularly focused on applications for tax administrations.

In this thesis, we have studied the potential of the zebrafish larval model in studying the ECS, as a complementary model to the existing rodent models.

Where does the urge to collect come from? What are the explicit or underlying reasons for gathering large amount of objects?

Promotor: Prof.dr. E. F. van Dishoeck

The demand for neodymium-iron-boron (NdFeB) magnets is rapidly growing, while the neodymium supply chain is under pressure. Recycling can alleviate these issues. This thesis investigates the potential for deploying novel magnet recycling technologies and their environmental consequences.

Het doel van het RAISE Onderzoek is om te onderzoeken hoe veerkrachtige mensen omgaan met stress. We kijken specifiek naar hoe belangrijke biologische systemen, zoals de HPA-as en het immuunsysteem, samenwerken met de hersenen en de sociale omgeving om veerkrachtig functioneren na moeilijkheden in de…

In this thesis we explore machine and deep learning approaches that address keychallenges in high dimensional problem areas and also in improving accuracy in wellknown problems. In high dimensional contexts, we have focused on computational fluid dynamics (CFD) simulations.

A common method to solve expensive function evaluation problem is using Bayesian Global Optimization, instead of Evolutionary Algorithms.

Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.

Promotor: Prof.dr. E. Smets, M. Stech

This dissertation presents the results of the importance of creativity for ICT-students of Dutch universities of applied sciences (in Dutch: hogescholen), and the functioning of training courses that aim to promote creative abilities is highlighted.

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…

We have conducted a full spectral line survey of the 3-13 micron region of two massive protostars, AFGL 2591 and AFGL 2136, for the first time at high spectral resolution.

Humans and songbirds learn their vocalizations early in life by exposure to the vocalizations of adult conspecifics. Often, better learning outcomes are achieved with live, social, tutors than with audio-only exposure to vocalizations.

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.

In today's volatile market environments, companies must be able to continuously innovate. In this context, innovation does not only refer to the development of new products or business models but often also affects the entire organization, which has to transform its structures, processes, and ways of…

Supervisor: P.J.J. Hooykaas Co-Supervisor: R. Offringa

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).

Thermodynamics is one of the founding scientific pillars that has helped us better understand heat engines, biology, ecosystems, and even black holes. While it fundamentally describes large systems by examining the bulk behavior of their constituents, it is anchored in the statistical equivalence of…

In populations with a seed-bank, individuals can temporarily become dormant and refrain from reproduction until they can become active again. The repository of all dormant individuals in the population is called the seed-bank. Seed-banks are observed in many taxa, including plants, bacteria and other…

Over the last three decades, the discovery of exoplanets has revealed the boundless variety of worlds beyond our own Solar System⁠. Majority of planetary systems contain short-period planets that are larger than Earth but smaller than Neptune⁠.

Metal production is not only energy-intensive and a major source of greenhouse gas (GHG) emissions, but is also associated with other impacts affecting human health and ecosystems.

Neanderthalers wisten volwassen bosolifanten, de grootste landzoogdieren van de laatste paar miljoen jaar, te verschalken. De Leidse hoogleraar Wil Roebroeks publiceert hierover samen met onder anderen zijn Duitse collega Sabine Gaudzinski-Windheuser in het tijdschrift Science Advances. De doorbraak…

In aflevering 53 van de Leidse Studium Generale podcast Radio Horzelnest verkennen we de vroegste bewoningsgeschiedenis van ons land met archeologen Gerrit Dusseldorp en Yannick Raczynski-Henk. Samen schreven zij: ‘De eerste mensen in de Lage Landen’.

Sinds 2013 voegen landen gemakkelijker namen toe aan de Amerikaanse terrorismelijst (TSDB), vertelt Jelle van Buuren in De Telegraaf.

De laatste jaren zijn er veel spectaculaire archeologische vondsten aangespoeld op de Nederlandse stranden. Zo ook bijna duizend spitsen van been en gewei uit het Mesolithicum (11,000-8000 v. Chr.). Tot nu toe was het niet bekend welke dieren de mesolithische jager-verzamelaars gebruikten om spitsen…

Het onderzoek van het Brain and Education Lab richt zich op de ontwikkeling van cognitieve processen die betrokken zijn bij leren en academische vaardigheden zoals begrijpend lezen, wiskunde en ruimtelijke vaardigheden. Daarbij richt het onderzoek zich specifiek op één van de meest opwindende fasen…

De sociale ontwikkeling is één van de belangrijkste domeinen van kwetsbaarheid bij Jonge kinderen met een extra X- of Y-chromosoom. Het is daardoor voor hen uitdagender om sociale signalen te signaleren in hun omgeving, die te verwerken en er gepast op te reageren.

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Hoe dachten de anglosaksen over de ervaring van het ouder worden? Was het echt een gouden tijd voor de ouderen zoals werd gesuggereerd?

Wil jij beginnen aan de bacheloropleiding Politicologie: Nationale en Internationale Politiek? Hieronder vind je jouw stappenplan.

In de loop van honderdduizenden jaren was het in onze contreien een komen en gaan van diverse soorten mensachtigen, afhankelijk van de temperatuur: ijstijden en warmere tijden wisselden elkaar af. In ‘De eerste mensen in de Lage Landen’ beschrijven de Leidse archeologen Yannick Raczynski-Henk en Gerrit…

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

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

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

Promotores: H.W. Lenstra, K. Belabas (University of Bordeaux)

Promotor: Prof.dr. H.P. Spaink, Co-promotor: Prof.dr. A.H. Meijer

The mission of our group is understanding how science communication works to improve the interaction between science and society. We believe better science communication can improve our society and engage many different groups with science, also improving science.

Artin L-functions associated to continuous representations of the absolute Galois group G_K of a global field K capture a lot of information about G_K as well as arithmetic properties of K.

The major and ultimate aim of metabolomics is to obtain an answer to a specific biological or clinical question.

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

De masteropleiding International Organisation wordt aangeboden door de Universiteit Leiden in Den Haag. Op deze pagina wordt uitgelegd waarom studenten voor deze opleiding en locatie kiezen.