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.

This thesis takes steps toward understanding the interaction between gas-phase and solid-state molecules in star- and planet-forming regions.

In design optimization problems, engineers typically handcraft design representations based on personal expertise, which leaves a fingerprint of the user experience in the optimization data. Thus, learning this notion of experience as transferrable design features has potential to improve the performance…

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

Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: M. Haverkorn

Promotores: Prof.dr. J. A. Bouwstra, Prof.dr. W. Jiskoot

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.

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.

Tuberculosis is a major global health problem caused by the Mycobacterium tuberculosis complex, claiming more than a million lives annually.

In Het monotheïstisch dilemma: theologie van het terrorisme (2010) gaat het om de relatie tussen religie en geweld.

Less than 1 in 10 drug candidates that enter phase 1 clinical trials actually gets approved for human use.

The endophytic microbiota is a community of various microorganisms that reside in plant tissue. These microbes are known to promote plant health and resilience, and their members do not simply exist side by side.

To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.

Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet

Understanding how nature captures and transfers solar energy is essential both for elucidating biological photosynthesis and for guiding the design of artificial light-harvesting systems.

Quantum computing represents a fundamentally new computational paradigm, capable of addressing problems that are intractable for classical computers.

The rapid expansion of research on human gut microbiome in recent decades has highlighted its role in human metabolism, immune regulation, and behavior.

Toll-like receptors (TLRs) are central components of the innate immune system, functioning as pattern recognition receptors that detect microbial- and damage-associated molecular patterns and initiate antimicrobial and inflammatory responses.

During the development of the (human) body from a single fertilized egg, organs and structures must form. The development and growth of biological forms is called morphogenesis.

Congres/symposium

All the data stored and processed by our computers is encoded as sequences of zeros and ones, called bits. Quantum computers offer an alternative to this traditional way of encoding and manipulating information.

GLOBOX is a spatially differentiated multimedia fate, exposure and effect model. It is used for the calculation of spatially differentiated LCA characterisation factors on a global scale.

Studying the impact of urbanisation on the respiratory health of past Dutch populations (1200-1850 CE).

Jacques Waisvisz (98) is een van onze oudste, nog levende, alumni. Als Joodse student moest hij in de Tweede Wereldoorlog zijn studie voortijdig staken. Hoe blikt hij daar op terug en hoe verliep zijn leven daarna? ‘Men geloofde eerst niet dat de situatie hier ook zo ernstig zou worden.’

Het is cruciaal dat de Universiteit Leiden reflecteert op haar eigen koloniale verleden. Dat stelde Cleveringahoogleraar Gert Oostindie in zijn oratie op 24 november. ‘Als universitaire gemeenschap moeten wij onszelf een spiegel durven voorhouden en, waar nodig en mogelijk, ook concrete stappen zett…

Oude verhalen voor een nieuw publiek In samenwerking met LUCIS

'Herdenken en denken over oorlog begon voor mij al jong, juist hier op Vlieland. Als kleuter namen mijn ouders mij hier naartoe voor vakantie. Mijn vader vond .50 kogels in de duinen'. Met deze woorden trapte Frans Osinga zijn lezing af op 5 mei. Op 1 mei gaf hij een soortgelijke lezing in Wageningen…

Nu er weer oorlog woedt in Europa lijkt de vraag wanneer je opstaat tegen onrecht weer actueler dan ooit. In zijn Cleveringa-oratie op 24 november zal historicus Gert Oostindie ingaan op de vraag: waarom was de koloniale overheersing heel lang bijna geen thema in Leiden?

Learning a programming language is challenging. Even one of the first –but crucial– concepts to learn, variables, is hard to grasp. Variables can represent different roles and functions within a code and need to be named appropriately to support code comprehension and debugging.

Promotor: P.M. Brakefield

Promotores: G.R. de Snoo, B. Sinsin, Co-Promotor: H.H. de Iongh

In dit interdisciplinaire onderzoeksprogramma werken onderzoekers uit vijf verschillende disciplines met elkaar samen. Zij stellen zich hieronder (in het Engels) aan u voor.

Wetenschappelijk onderbouwde strategieën voor rechtvaardige ondersteuning van studenten met ADHD in het hoger onderwijs.

In this thesis we use state-of-the-art observations and simulations to provide the best constraints to date on the HVS ejection rate and constraints on the stellar content and dynamics at the GC, including the progenitor binary populations and their star formation history.

For questions and suggestions regarding the series, please contact prof. dr. Olaf van Vliet or dr. Max van Lent

This thesis contains results on the arithmetic and geometry of del Pezzo surfaces of degree 1.In Chapter 1 we give the necessary background, assuming the reader is familiar with algebraic geometry.

A recent study on reintroduced tigers in Panna Tiger Reserve in India reveals that risks from tigers increased more because of human behaviour and people's livestock husbandry practices.

Corruption, integrity (or a lack thereof…) and public values are near omnipresent elements in public administration and politics of all times. Cases of corrupt public officials and politicians continuously emerge. Strangely enough, however, it often remains unknown what actually occurred, how something…

When you have decided to participate in a Summer School of Leiden University, there are some matters you need to know before arrival. Please take a few minutes to read through the information here to find out what you can do from your side to smooth the process.

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 ultimate aim of this project is to improve cooperation between courts in different Member States.

Promotor: G.A. Persoon, Co-promotor: H.H. de Iongh

In this thesis, we will utilize embryonic zebrafish tumour models to understand the interaction between engrafted human cancer cells and macrophages from the host, test drug administration modalities and anti-cancer efficacies of newly-developed PDT and PACT compounds, and test a light-triggered liposomal…

Seagrass is a marine flowering plant with special adaptations to coastal and marine environments, playing a crucial role in providing a wide range of ecosystem services.

The confinement of molecular catalysts in metal-organic frameworks has the potential to lead to significant improvements in selectivity, long term activity and catalyst stability.

In this study, we investigated the electrochemical behavior and surface evolution of Au(111) electrode under different conditions and electrochemical techniques, using a homemade electrochemical scanning tunneling microscope (EC-STM), revealing the intricate interplay between surface roughening, atom…

Ontdek het studentenleven bij de MSc Political Theory: Legitimiteit en Rechtvaardigheid aan Universiteit Leiden: studieverenigingen, activiteiten, academische gemeenschap en wonen in Leiden en Den Haag.

Hoe kunnen we op een interdisciplinaire wijze de classificatie van migranten en mensen met een beperking bestuderen en onderzoekers van deze velden samenbrengen om raakvlakken met elkaar te vinden?

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.