This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…

Promotor: M. Franx, Co-Promotor: I.F. Labbé

De eerste index om de veiligheid, duurzaamheid en circulariteit van producten te meten, waarmee ze het EU-kader (SSbD) operationaliseren.

This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.

This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.

This project, South American population history revisited: multidisciplinary perspectives on the Upper Amazon (SAPPHIRE), investigates population dynamics in western South America on the basis of traces in the geographical, genetic, archaeological, ethnological, and linguistic record.

Studievoorlichting

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.

Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens

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

Promotores: H.A. Udo de Haes, H.H.T. Prins, Co-promotor: H.H. de Iongh

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.

Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…

The formation and evolution of galaxies is fundamentally driven by the formation of new stars out of cold gas.

Within the field of astronomy, understanding how galaxies grow and evolve from the Big Bang to the present day is a challenging and complex question.

Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: H.Hoekstra

In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.

Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.

Jager-verzamelaars vergaren hun voedsel met complexe gender-specifieke verzameltechnieken voor een relatief stabiele en diverse toevoer van energie. Nieuw onderzoek toont aan dat de specialisatie van jongens en meisjes al op zeer jonge leeftijd start. Waarschijnlijk ontwikkelden mensen hierdoor een…

Vinasse is a major by-product generated by the sugarcane biofuel industry. It is a source of microbes, nutrients and organic matter and often it is recycled as fertilizer.

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

Climate change, depletion of natural resources, loss of natural and cultural landscapes, and many other (ecological) sustainability challenges urge us to (re)evaluate human interaction with the natural world. This renewed environmental consciousness has invigorated not only scientists working on effects…

Lisa Becking, Gerbrand van der Heden-van Noort en Freek Vonk hebben ieder een Rubicon subsidie binnengesleept. NWO honoreerde 29 pas gepromoveerde onderzoekers, in totaal waren er 240 aanvragen. Met Rubicon geeft NWO pas gepromoveerde wetenschappers de kans om onderzoekservaring op te doen aan internationaal…

The majority (80%) of e-waste generated globally are recycled informally in developing countries.

Hoe worden nachtruimtes verbeeld, geproduceerd, ervaren en verteld door migrantengemeenschappen in Europa? Dit onderzoeksproject onderzoekt deze vraag in acht Europese steden: Aarhus, Amsterdam, Berlijn, Cork, Galway, Lissabon, Londen en Rotterdam.

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.

How to bring together different footprints into an integrated family and what are the synergies? What are the roles of inventory analysis and characterization in measuring individual footprints and how these affect a footprint family? How to benchmark environmental footprints against related planetary…

Antimicrobial drugs constitute a fundamental part of modern medicine. The global rise in antimicrobial resistance poses a major threat to global health.

BlaC is the β-lactamase of Mycobacterium tuberculosis. We show that it can recover from inhibition by clavulanic acid and that phosphate helps it do so.

Material circularity and energy efficiency are highly relevant and intertwined issues for the transition towards a carbon-neutral and circular built environment. In the Netherlands, the building sector has been rendered a priority towards a circular and low-carbon society.

High-angular-resolution observations of the circumstellar material have uncovered numerous and very diverse substructures in protoplanetary discs, raising the question of whether they are caused by forming planets or other mechanisms.

What is the role of the rebound effect in achieving environmental savings from transport eco-innovation? Are traditional definitions of the rebound effect adequate in the context of transformative innovations and multidimensional environmental issues?

By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.

Festival

Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

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.

This thesis addresses the chemical processes that determine the compositions of giant planet atmospheres.

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

Van duiven tot zebravinken. Carel ten Cate bestudeerde vogelgeluiden. En dat niet alleen. Samen met Leidse linguïsten onderzocht hij de parallel tussen vogelzang en taal. Op 9 juni was het afscheidssymposium, als afsluiting van zijn brede carrière. Nou ja, afsluiting? Carel ten Cate is nog niet klaa…

Een wereldwijd biologisch onderzoek heeft het meest directe bewijs tot nu toe geleverd dat mensen, en specifiek steden, de aanjager zijn van evolutionaire veranderingen op Aarde. De Universiteit Leiden, Naturalis en de gemeente Leiden droegen inhoudelijk en financieel bij aan de studie.