For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

The radio sky harbours both galactic and extragalactic sources of arcminute- to degree-scale emission of various physical origins. To discover extragalactic diffuse emission in the Cosmic Web beyond galaxy clusters, one must image low–surface brightness structures amidst a sea of brighter compact fore-…

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

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

Electron microscopy has become an extremely important techniquein a wide variety of elds.

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

I have studied the hot, diffuse gas around and between galaxies. Specifically, I have used the EAGLE numerical simulations of galaxy formation to predict the properties of this gas, and I have used those properties to predict specific observables: soft X-ray absorption and emission lines.

Promotor: R. Tijdeman, Co-promotor: H.J.J. te Riele

Producing green energy has become the main goal in our society in the search of reducing or eliminating the carbon emission from fossil fuels.

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

When observing star-forming galaxies, we are not only seeing stellar light, but we also see how this interacts with galactic gas and dust. This thesis contains studies of the stellar, nebular and dust properties of low mass star-forming galaxies.

My colleagues and I have been devastated to learn that our good colleague and friend Stefan Landsberger (born 1955) passed away unexpectedly, on 26 September 2024. Stefan had been a fixture of China Studies in the Netherlands, where he had been Associate Professor of contemporary Chinese History and…

Researchers from the Department of Economics - Kees Goudswaard, Koen Caminada, Marike Knoef, Pierre Koning and Olaf van Vliet - have been awarded a grant of one million euros by Instituut Gak to investigate self-sufficiency and social protection.

Een groep van 52 wetenschappers van over de hele wereld heeft in een open brief de Singaporese premier opgeroepen om de aangifte tegen het multimediale platform New Naratif in te trekken. Ook hoogleraar Adriaan Bedner (Van Vollenhoven Instituut) ondertekende de brief.

This research project studies the distribution and impact of medieval malaria in the Netherlands.

The research in this dissertation aims to optimise blood donation processes in the framework of the Dutch national blood bank Sanquin. The primary health risk for blood donors is iron deficiency, which is evaluated based on donors' hemoglobin and ferritin levels.

Studievoorlichting

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.

Een groep van 30 excellente studenten uit de hele wereld bracht vorige week een bezoek aan Estec, het ruimtevaartcentrum in Noordwijk. Een groot deel van die groep is door de Sterrewacht van de Universiteit Leiden geselecteerd voor deelname aan een drie maanden durend onderzoeksprogramma 'Leiden/ESA…

Quantum computing is an emerging technology, which holds the potential to simulate complex quantum systems beyond the reach of classical numerical methods.Despite recent formidable advancements in quantum hardware, constructing a quantum computer capable of performing useful calculations remains challenging.In…

In this Ph.D. thesis we study the interaction of low energy electrons with thin materials, namely layered materials (graphene, hexagonal boron nitride, molybdenum disulfide) and organic films. At these low energies the quantum mechanical wavelength of the electron wave function is in the order of a…

Data theory research on the analysis on the multidimensional data

Leiden University’s Academic Challenge

In this thesis we study quantum transport phenomena on the nanometer scale, in two classes of materials: topological insulators with induced superconductivity and graphene superlattices.

Kunnen we van quantum-verrassingen quantum toepassingen maken? Kunnen we het leven onderzoeken en opbouwen vanuit de nano-schaal?

This multidisciplinary minor provides students with knowledge on how and why humans became the way they are. The minor focuses on the evolution of the species Homo sapiens from other hominin lineages and animal ancestors, and on the various factors shaping this process. Not only is human evolution of…

How were the Russians, under early modern conditions, able to incorporate this distant, undeveloped and, because frequent nomadic attacks, dangerous territory? And what role did the Kolyvan-Voskresensk plants play in this process?

As part of the NWO-funded research project ‘The Multilingual Dynamics of the Literary Culture of Medieval Flanders, c. 1200- c. 1500’, we invite proposals for 20 minute papers addressing any aspect of medieval literature and literary culture. We welcome proposals from scholars at all career stages—and…

Promotores: G.A. Persoon, H.H. de Iongh

In his dissertation Michiel Hooykaas outlines the results of six empirical research projects focused at biodiversity awareness in the Netherlands, specifically people’s knowledge about animals.

Op deze pagina vindt u de opnames van de online This Week's Discoveries vanaf 12 mei 2020 en een lijst sprekers vanaf oktober 2015.

CML-IA is a database that contains characterisation factors for life cycle impact assessment (LCIA) and is easily read by the CMLCA software program.

Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.

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.

In the thesis the dynamics of strategies is studied from two perspectives.In the first part of the thesis strategies are considered to be opinions present in a community.

Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven

Promotor: M. Ubbink, Co-promotor: G. Siegal

Zie hier het facultaire werkplan voor diversiteit en inclusie binnen de Faculteit der Rechtsgeleerdheid.

Promotor: H.S. Overkleeft, Co-promotor: M. van der Stelt

In this work we describe three methods to improve the performance of Quantum Field Theory calculations.

Promotor: Prof. dr. A.G.G.M. Tielens

Denk je schaamte om en maak het je kracht.

Programma's die de symptomen van sociale angst bij kinderen willen verminderen, omvatten doorgaans meerdere onderdelen, zoals blootstelling en mentale herstructurering. Het is onbekend of afzonderlijke onderdelen positieve effecten opleveren bij kinderen of dat een combinatie van onderdelen nodig is…

This thesis focused on the exploration of monolayer graphene as a membrane in direct methanol fuel cell (DMFC) applications, with improvements achieved through plasma exposure or damage- free chemical functionalization.

The work in this thesis has been focused on two subjects. The first is the assembly of alginate oligosaccharides and the generation of building blocks for the enzymatic synthesis of alginate, and the second is the total synthesis of large fragments of the zwitterionic SP1 polysaccharide.

Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.

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…

Promotor: Prof.dr. M.T.M. Koper, Co-Promotor: F. Calle-Vallejo

We showed that constitutive and inducible chemical and morphological defenses against Western flower thrips differ between tomato and chrysanthemum plants.

Errors are everywhere, and mechanical failures are especially common: buckled grain silos and cracked support columns are, justly, seen as an issue to be avoided.