Ben jij gek op talen, andere culturen, verhalen uit het verleden en wat er in de wereld gebeurt? Dan zit je goed bij de Universiteit Leiden. Hier duik je in talen en culturen van over de hele wereld - van Europa tot Azië en van het Midden-Oosten tot Latijns-Amerika. Nergens in Nederland vind je zo’n…

Ben jij gek op talen, andere culturen, verhalen uit het verleden en wat er in de wereld gebeurt? Dan zit je goed bij de Universiteit Leiden. Hier duik je in talen en culturen van over de hele wereld - van Europa tot Azië en van het Midden-Oosten tot Latijns-Amerika. Nergens in Nederland vind je zo’n…

Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn

This PhD thesis concerns the topic of arithmetic geometry. We address three different questions and each of the questions in some way is about counting how big some set is or can be.

Fundamental understanding of molecular reactions on metal surfaces is important for improving heterogeneous catalysis.

De Leidse historici Piet Emmer en Jos Gommans nemen de geschiedenis van Nederland overzee (1600-1800) onder de loep. Emmer: ‘Voor vrijwel alle koloniale machten blijkt het overzeese rijk op den duur een economische rem te zijn geworden.’

Lange tijd wisten we ons thuis in een wereld die we meenden te hebben. Het bestaan in deze vertrouwde wereld vormde onze existentie, die we op een eigenlijke wijze op ons namen. Thans is de wereld echter niet meer wat hij was, en zijn we ook zelf niet meer wie we waren. ‘De wereld is weg’, zo dichtte…

To answer questions that look beyond individual entities, network science studies the interactions taking place in complex systems. These complex systems can often have temporal information on when an interaction occurs.

The studies described in this thesis deal with glycosidases, in particular alpha-galactosidases.

What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?

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.

Green hydrogen is produced via a process called water electrolysis. During electrolysis water is split into oxygen and hydrogen.

With the energy transition toward a renewable energy supply and a CO2-neutral economy, electrification of the energy system is rising in importance, which leads to the challenge of long-term storage of renewable electricity.

The overall objectives of my thesis are to investigate the dynamics of the sorghum root microbiome and to explore the beneficial effects of the root microbiome on sorghum growth and stress tolerance.

All life on earth contains DNA, which is used to store biological information. Organisms compact their DNA in order for it to fit inside their cell(s).

The lipids in the uppermost layer of the skin, the stratum corneum (SC), play an important role in the skin barrier function. The three main SC lipid classes are ceramides (CER), cholesterol and free fatty acids.

In multi/many-core System-on-Chips (SoCs), the performance is almost linearly scaling with the number of processing elements.

Anthropogenic noise negatively affects wildlife in a wide range of taxonomic groups.

De masterspecialisatie Digital Media in Human Development gaat over kansen en uitdagingen van digitale media in opvoeding en onderwijs.

Promotor: A. Achúcarro, Co-Promotor: G.A. Palma

In this thesis we use Josephson and noise scanning tunneling microscopy for the study of conventional, unconventional (iron-based) and disordered superconductors. On the one hand, Josephson scanning tunneling microscopy allows us to directly visualize the superfluid density with high spatial resolut…

This thesis focuses on the synthesis, characterization and performance towards CO2 electroreduction of mono and bi-metallic particles based on p-block metals

Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo

Bas Rietjens en zijn collega's onderzochten de oorlog tussen Rusland en Oekraïne en onderzochten deze veelvoud aan facetten en hun onderlinge verbanden.

Collected Cases on EU Labour Law (eerste druk) is onlangs verschenen bij Eleven International Publishing.

Op 20 januari 2022 verdedigde Marco Stam het proefschrift 'Essays on Welfare Benefits, Employment, and Crime'. Het promotieonderzoek is begeleid door prof.dr. M.G. Knoef.

Promotores: H.W. Lenstra, B. Erez, Co-promotor: L. Taelman

Promotor: Prof.dr. V. Icke, Co-Promotor: T.I. Madura

The energy system is at the heart of two of the greatest challenges of the 21st century: decreasing CO2 emissions to meet the ambitions of the Paris agreement while fulfilling the growing energy demand associated with the economic aspirations of a growing world population.

Op 21 november 2018 verdedigde Lieke Kools haar proefschrift 'Essays on wealth, health, and data collection'. Het promotieonderzoek is begeleid door promotoren prof. dr. K.P. Goudswaard en prof. dr. C.L.J. Caminada.

Promotor: A. Doelman, Co-promotor: M.F.E. de Jeu

An algorithm is discussed to compute the exponential representation of principal units in a finite extension field F of the p-adic rationals.

Kohei Suzuki and his co-authors reflect on their extensive scholarly experience teaching comparative public administration across diverse countries including Canada, the Netherlands, Qatar, and the United States.

In this thesis, topics relating to the optimization of high-throughput pipelines used for imaging are discussed. In particular, different levels of implementation, i.e., conceptual, software, and hardware, are discussed and the thesis outlines how advances on each level need to be made to make gains…

Wanneer een fysisch systeem symmetrieën bezit gaan deze vaak gepaard met een representatie van de symmetriegroep op een Hilbertruimte. Groepsrepresentaties op Hilbertruimten zijn intensief onderzocht.

In this thesis we study products of linear error correcting codes.

In some condensed matter systems, such as the surface of a 3D topological insulator, the electrons are effectively massless and we must necessarily use the massless Dirac equation to describe them.

De astronomie begon met het bestuderen van het licht van de sterren. Deze sterren worden geboren in uitgestrekte wolken van gas en stof.

Promotor: G.R. de Snoo, Co-promotor: H.H. de Iongh, C.J.M. Musters

Promotor: Prof.dr. P.G.L. Klinkhamer, Co-Promotor: T.J. de Jong

In deep reinforcement learning, searching and learning techniques are two important components. They can be used independently and in combination to deal with different problems in AI, and have achieved impressive results in game playing and robotics. These results have inspired research into artificial…

The subject of this thesis, ‘Approach to Markov Operators on Spaces of Measures by Means of Equicontinuity’, combines an analytical and probabilistic approach to Markov operators.

Lysosomal glycosidases are acid hydrolases that fragment glycoconjugates in lysosomes.

Low-carbon (LE) technologies have a significant potential to reduce the total carbon emissions in China.

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

This collection of papers was compiled in celebration of the remarkable academic career of Professor Wil Roebroeks, who has established himself as one of Europe’s leading figures in Palaeolithic archaeology over the past three decades and founded the Human origins research group at Leiden University…

Bacteriën op heterdaad betrapt, diep bevroren terwijl ze op het punt stonden de ziekte van Lyme te veroorzaken. Razend enthousiast is Ariane Briegel over wat ze allemaal kan zien dankzij de drie-eenheid van een vriestechniek, een microscoop met camera en kunstmatige intelligentie. 'Het is fascinerend,…