The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

Promotor: F.J. van Lunteren, E. Jorin

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

This thesis investigates how galaxies form and what diversifies the evolutionary histories of galaxies.

In recent decades, climate change has led to more frequent and severe drought events, causing serious consequences such as increased forest mortality and significant crop yield losses. Understanding how drought affects plants, especially economically important herbaceous species, is crucial for predicting…

Op 11 juni 2020 verdedigde Sabine Witting haar proefschrift 'Child Sexual Abuse in the Digital Era: Rethinking Legal Frameworks and Transnational Law Enforcement Collaboration'. Het promotieonderzoek is begeleid door promotoren prof.mr. J.J. Sloth-Nielsen en prof.dr.mr. S. van der Hof.

The research described in this thesis has, using the zebrafish as a model system, shed new light on the intricate relationship between TB and DM2, in particular on the role of leptin, SHP-1 and glucocorticoids.

Promotor: Prof.dr. T. Schmidt, Co-Promotor: S.J.T. van Noort

In-use stocks of products can be considered as intermediaries between human needs and the physical world.

To this day, all cyclophellitol-based inhibitors and ABPs have been close analogues of their natural substrate counterparts. As a result, these probes showed high selectivity towards their target glycosidases.

CONSENT (Consumer sentiment regarding privacy on user generated content services in the digital economy) is a research project funded by the European Union under the 7th Framework Programme. The question central to this research is whether recent changes to consumer and commercial practices developed…

The soil ecosystem consists of the largest reservoir of biodiversity on Earth.

Promotores: H.W. Lenstra, A. Lucchini

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

Microbial rhodopsins are photosensitive pigments implemented in the growth and adaptation of a large population of microorganisms.

Promotor: T.J. Aartsma, Co-promotor: R.N. Frese

Promotores: Prof.dr. J. Zaanen, Prof.dr. K.E. Schalm

Bacteria often experience external challenges, such as changes in environmental conditions or attacks by bacteriophages.

Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

Before the large scale use of renewable energy sources can be implemented in our society, the storage of electrical energy needs to be tackled. Storage the energy as hydrogen via the reduction of protons is a good option.

In this thesis, the discovery and optimization is described of chemical tools to study the N-acylethanolamine (NAE) biosynthetic pathway.

In analogy to mathematical proofs, the goal of a proof system is for a prover to convince a verifier of the correctness of a claim.

Soil is a home for an unbelievable diversity and abundance of microbial life that is essential for supporting life on our planet.

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

It is an established fact that the Standard Model has to be extended to explain the so-called Beyond the Standard Model (BSM) phenomena: dark matter, matter-antimatter asymmetry of the Universe and neutrino flavour oscillations.

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

To improve cancer treatments, personalized medicine approaches have aimed to identify exactly which mutations are driving tumor development in a given patient and specifically target these mutations using precision therapies.

This PhD-thesis analyses the relationship between the parties’ choices in the CPB Netherlands Bureau for Economic Policy Analysis’ assessments of the election manifestos and coalition agreements over the period 1986-2017, and tries to explain this relationship.

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”.

Beneficial plant-associated microbiota, particularly those inhabiting the rhizosphere, contribute substantially to plant health through pathogen suppression, stimulation of plant defence responses, and enhanced nutrient acquisition.

Lezing

Studievoorlichting

Ongeveer 600 studenten beginnen dit jaar met één van de Leidse honoursprogramma’s. In de Hooglandse kerk verwelkomde Ton van Haaften (dean Honours Academy) hen tijdens de opening van het honoursjaar. ‘Binnen de Honours Academy laten we docenten en studenten van verschillende disciplines samenwerken.…

Op dinsdag 21 november vond de certificaatuitreiking van het Honours College plaats in de Hooglandse Kerk in Leiden. Tijdens de uitreiking vertelden twee studenten over hun ervaringen met honoursonderwijs en sprak Vice-rector Hester Bijl de studenten toe.

Ongeveer 600 studenten beginnen dit jaar met één van de Leidse honoursprogramma’s. In de Hooglandse kerk verwelkomde Ton van Haaften (dean Honours Academy) hen tijdens de opening van het honoursjaar. ‘Binnen de Honours Academy laten we docenten en studenten van verschillende disciplines samenwerken.…

The main aim of this project is to reveal and unravel the invisible histories of the UN, transcending the dominant Western perspective to recover the historical agency of Global South actors. The research will investigate how the UN has both facilitated and limited their role in shaping global order…

Join-in courses zijn MA-cursussen over middeleeuwse onderwerpen gegeven binnen vastgestelde MA-programma's van de zes deelnemende universiteiten van de Onderzoekschool. Op aanvraag zijn deze vakken toegankelijk voor studenten van andere (Nederlandse) universiteiten. De cursusbelasting en het aantal…

Vrijdagmiddag 12 oktober 2018 vond de Workshop Ondersteuning Buitenpromovendi plaats aan de vestiging Wijnhaven van de Universiteit Leiden. Deze workshop werd georganiseerd door het Nederlands Expertise Centrum voor de Promotieopleiding (NECPO) en het Dual PhD Centre.

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).

Wetlands provide many ecosystem goods and services which include fish production. The sustainability of small-scale fisheries (SSF) has received considerable attention in recent years because fish is one of the major sources of animal protein to a considerable fraction of the global population which…

Op dinsdag 31 oktober 2017 verdedigde Saskia Gras haar proefschrift

Dr. Adriaan in 't Groen, scheidend directeur van het Dual PhD Centre van de Universiteit Leiden, ontving bij zijn pensionering op 6 juni de Gouden Speld van de stad Leiden van wethouder Robert Strijk.

Na afloop van de Stieltjesmiddag op vrijdag 8 oktober is Fred Bakker, die eerder dit jaar afscheid nam als instituutsmanager maar nog actief was als secretaris van het Stieltjesinstituut, door Hare Majesteit benoemd tot Ridder in de Orde van Oranje-Nassau.

Stel: je loopt in een museum, ziet iets dat je aandacht grijpt en voor je het weet heb je een stage te pakken. Het overkwam student geschiedenis Davey Verhoeven, die mee mocht werken aan de tentoonstelling over het bijzondere Japanse kamerscherm van Kawahara Keiga (c. 1786 – c. 1860) dat nu in Museum…

Grenzen opzoeken en experimenteren. Het academisch jaar van de Honours Academy startte op 10 oktober en alle sprekers moedigden studenten aan in het diepe te springen.