In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.

Promotores: Prof.dr. J. Schaye, Prof.dr. S.D.M. White (MPA Garching)

Het heelal heeft veel meer massa dan we kunnen aantonen. Zien we iets over het hoofd, of gebruiken we foutieve rekenmodellen? Margot Brouwer vertelt erover tijdens de Nacht van Kunst & Kennis op 16 september.

Joseph Callingham van de Leidse Sterrewacht ontvangt de Louise Webster Prijs voor uitmuntend post-doc onderzoek. Calligham krijgt de prijs van de Astronomical Society of Australia voor zijn geslaagde zoektocht naar het meest extreme object in het heelal.

Een team van sterrenkundigen onder leiding van wetenschappers van de Universiteit Leiden en de Universiteit van Amsterdam heeft via directe beeldvorming een reuzenplaneet ontdekt op enorme afstand van een zon-achtige ster. Waarom die planeet zo zwaar is en hoe die daar verzeild is geraakt, is nog een…

Bernhard Brandl, de nieuwe Leidse hoogleraar Infraroodastronomie, bouwt mee aan instrumenten waarmee de grootste telescopen ter wereld worden uitgerust. Met die telescopen kan de mens in het heelal objecten observeren die soms meer dan dertien miljard jaar oud zijn. Op 26 september houdt Brandl zijn…

We have studied shape with a particular focus on the zebrafish model system. The shape is an essential appearance of the phenotype of a biological specimen and it can be used to read out a current state or response or to study gene expression.

Promotor: Prof.dr. C.W.J. Beenakker

Wiskunde en Natuurwetenschappen, Sterrewacht Leiden (STRW)

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

The work in this thesis has been focused on two subjects. The first is the assembly of alginate oligosaccharides and the generation of building blocks for the enzymatic synthesis of alginate, and the second is the total synthesis of large fragments of the zwitterionic SP1 polysaccharide.

Over the past years it has been discovered that the population of extra-solar planets is large and diverse.

This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.

Promotie

The ongoing increase in antimicrobial resistance combined with the low discovery of novel antibiotics is a serious threat to our health care.

Promotor: Arjen Doelman, Co-promotor: Vivi Rottschäfer

Membrane fusion is a vital process in living organisms and is mediated by zipper-like proteins.

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.

The field of exoplanet research is rapidly advancing through the development of new technology, observing techniques, and post-processing methods.

The four possible segments A, T, C and G that link together to form DNA molecules, and with their ordering encode genetic information, are not only different in name, but also in their physical and chemical properties.

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

Cardiovascular diseases are among the most frequent causes of death in the world. The main underlying pathology of cardiovascular diseases is the development of atherosclerosis in the medium and large-sized arteries.

Promotor: A. Achúcarro, Co-promotor: A. Boyarsky

Promotores: Prof.dr. C.A.J. Knibbe, Prof.dr. M. Danhof, Prof.dr. K. Allegaert (Leuven)

Promotor: A. Kros

Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.

A large diversity of exoplanetary systems has been found, but it is still unclear what drives this diversity.

In most applications, electrocatalysts exhibit a large surface area to volume ratio, for example using nanoparticles.

Promotor: J.N. Kok, Co-Promotor: A.J. Knobbe

Promotor: G.R. de Snoo, Co-promotor: C.J.M. Muster

Promotor: Prof.dr. G.R. de Snoo

In het vroege heelal worden sterrenstelsels omhuld door een soort mist: een wolk van waterstof. Bij stelsels in het latere heelal is die mist verdwenen. Sterrenkundige Jorryt Matthee slaagde er voor het eerst in het optrekken van die mist in beeld te brengen. Promotie op 19 september.

Does knowledge of environmental performance change farmer's behaviour?

Congres/symposium

We found that, next to the effectiveness of the intervention, it’s also very likely that the intervention is cost-effective compared to attention only.

Promotor: Prof.dr. C.U. Keller

The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.

EXIOBASE is a global, detailed Multi-regional Environmentally Extended Supply and Use / Input Output (MR EE SUT/IOT) database. It was developed by harmonizing and detailing SUT for a large number of countries, estimating emissions and resource extractions by industry, linking the country EE SUT via…

Lezing

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

Metal-based prodrugs based on ruthenium(II) polypyridyl complexes have proven to be very suitable for application in both photodynamic therapy (PDT) and photo-activated chemotherapy (PACT).

Verduurzaming van gebouwen levert een bijdrage aan Nederlandse en Europese milieunormen. De Universiteit Leiden houdt daar in al haar bouwprojecten rekening mee.

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

Promotie

This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.

The field of science communication is very broad. Below is a list of organisations where SCS students can fulfill internships or where alumni have found jobs.

Leiden University offers a unique range of summer courses where you can broaden or deepen your knowledge or share your expertise with fellow students. The choice of academic courses is very diverse, ranging from Law, Big Data, Languages and Linguistics to Maths and Natural Sciences, Biology, Biomedical…

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.