Wat hebben een nieuw ingrediënt in anti-rimpelcrème en een nieuw soort kippenvoer met elkaar gemeen? Ze zijn beiden geproduceerd met behulp van een nieuw oplosmiddel dat Leidse biologen in 2011 hebben ontwikkeld. Het medium is vast noch vloeibaar en de industrie begint hier nu de vele mogelijkheden…

The thesis deals with the study of giant radio galaxies (GRGs), which are radio galaxies of megaparsec sizes.

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

Heb je een vraag over studeren aan de Universiteit Leiden? Of over de specialisatie International Relations and Organisations? Neem gerust contact met ons op!

Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.

To study how planetary systems come into existence we study much younger systems still in formation.

This study attempts to understand how indigenous community institutions pose an important role in sustainable community-based development, including the integration between local culture and development.

The aim is to develop methods to assess environmental and occupational exposure to (individual) pesticides, to be applied in epidemiological studies investigating pesticide exposure and human health. Furthermore, we aim to investigate the potential association between exposure to pesticides and Parkinson’s…

Promotor: Prof.dr. H.W. Lenstra

This dissertation consists of two parts, with the common theme

In this thesis we study the landscape of gravitational models which modify GR by introducing an additional scalar degree of freedom (d.o.f.) to source Cosmic Acceleration.

In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).

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.

Het Natuurwetenschappelijk Gezelschap Leiden (NGL) vierde op vrijdag 24 april 2015 haar 145 jarig bestaan met een lustrumexcursie naar het Instituut voor Biologie Leiden (IBL), Universiteit Leiden. Hier kregen de leden en gasten, waaronder veel alumni, een kijkje achter de schermen van het instituut…

De ‘gewone burger’ komt steeds meer in beeld in het buitenlandbeleid en dit heeft al tot verrassende resultaten geleid, zoals de Brexit. Jan Melissen, als senior fellow verbonden aan het Institute of Security and Global Affairs, doet onderzoek naar de vermaatschappelijking van de diplomatie. Hij is…

n this thesis we study curves. In the first half, we study moduli spaces of curves and Gromov-Witten invariants, certain kinds of curves counts. We employ logarithmic geometry for this.

Evaluating the environmental consequences of diet changes in the European Union.

Do e-waste workers display enhanced effects of adverse health effects due to informal e-waste processing in Nigeria? Is there a difference between the health outcomes of the exposed and the control groups? Are there difference in health effects within and between job groups (collectors, dismantlers,…

The Sundanese people, the largest ethnic group in West Java, have been using traditional medicine for a long time. Known as ubar kampung, Sundanese indigenous knowledge, beliefs and practices of traditional medicine are based on local people’s knowledge and use of Medicinal, Aromatic, and Cosmetic (MAC)…

One of the key quests in astronomy is to study the growth and evolution of galaxies across cosmic time. Radio observations provide a powerful means of studying the formation of stars and subsequent buildup of distant galaxies, in a way that is unbiased by the presence of dust.

The key purpose of this project is to study tautological relations on the level of closed differential forms or even integral cochains (i.e. we don't take classes in cohomology).

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

Promotor: J.W.M. Frenken

Binnen dit instituut wordt veel gevangenisonderzoek verricht. Detentie is de strengste sanctie die in de strafrechtstelsels van de Europese landen wordt toegepast.

How does the management of Elephant Marsh Fishery in Malawi relate to wider contexts of policies, theories and regions? And how can the current management system be adapted to achieve long-term sustainability of the fishery?

In this thesis we study the moduli space of genus g curves, and the differential forms that occur naturally on this moduli space.

In this dissertation, we study partition-based models that can be used both for interpretable predictive modeling and for understanding data via interpretable patterns.

This thesis is divided into two parts. In Part I we study metastability properties of queue-based random-access protocols for wireless networks. The network is modeledas a bipartite graph whose edges represent interference constraints. In Part II we study spectra of inhomogeneous Erdős-Rényi random…

In dit proefschrift wordt gekeken naar de produktie en consumptie van het reality-tv-programma ‘Nieuwe Wijze Oom’. Deze show, uitgezonden op het entertainmentkanaal van de provincie Shanghai, draait om mediation in conflicten tussen burgers. ‘Nieuwe Wijze Oom’ is geliefd bij het publiek én bij de autoriteiten.…

The focus of the dissertation

Lipid signaling is an essential biological event/process in a plethora of pathophysiological conditions. The underlying idea of this thesis is that many of the roles and the complex interplay of the individual signaling lipids in inflammatory processes and related conditions in health and disease is…

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A complex community of microbes develops in the infant gut shortly after birth. We call this community the infant gut microbiota. The microbiota influences the health of the infant, which makes the composition and function of the infant gut microbiota an important topic to study.

Vitamin A or retinol is essential in embryonic development, the visual cycle and the immune system.

This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.

In the first part of this thesis we study the geometry of folding patterns.

Mechanical metamaterials are carefully engineered materials whose properties are controlled by their structure, not by their composition, which allows using metamaterials to study and control physical effects in detail⁠.

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

Promotor: Prof.dr. B.R. Katzy, Prof.dr. J. de Vries

The thesis is about the study of shell evolution of the Hydrocenidae of the genus Georissa. This thesis started with a general overview on the evolutionary process of animals due to ecological changes.

What invertebrates are available to feed nestlings in an agricultural landscape of varied complexity?

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

Arithmetic geometry concerns the number-theoretic properties of geometric objects defined by polynomials. Mathematicians are interested in the rational solutions to these geometric objects.

The largest genus within the Phyllanthaceae family is a group called Phyllanthus L. Recent studies have shown, that Phyllanthus is paraphyletic with the genera Glochidion, Breynia and Synostemon nested within it.

What is movements and corridors of the Bornean pygmy elephant in Sebuku forest? What is the nature of human-elephant conflict in Nunukan District in time and space? What are the diets of the Bornean elephants related to crop raiding?

Comparing the global warming potential (GWP) of the service provided by an iRex Digital Reader to the same service provided by an office printer using a scanning LCA.

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 contributes to studying primordial cosmology theories and their detectability in future observations.

Single-Molecule Microscopy (SMM) techniques constitute a group of powerful imaging tools that enable researchers to study the dynamic behavior of individual molecules.

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.