Promotor: G.R. de Snoo

Water is all around us and is vital for all aspects of life. Studying the various compounds and life forms that inhabit natural waters lets us better understand the world around us.

The main research question of this thesis was: Can nitrogen cycling on dairy farms on peat soil in the Dutch Green Heart area be improved by adapting management to the nitrogen supply from soil and by using other grassland species and crops without affecting milk production?

Biodiversity enables ecosystems to thrive through the synergy of functional differences among organisms. While human well-being strongly depends on biodiversity-driven ecosystem services, human actions are also at the root of current unprecedented biodiversity declines.

Promotors: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Prof.dr.ir. H.H. de Iongh

Food security is challenged by a growing global population and by climate change. Drought and soil salinity are considered the most important ones that inhibit crop yield and distribution. Worryingly, climate change is predicted to increase not only their frequency and severity, but also their co-occurrence,…

Solute carrier (SLC) transporters are a large and diverse class of relatively understudied transmembrane proteins.

Globally and regionally, biodiversity is declining and there are shifts in species’ occurrences and functional traits.

Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.

Viral diseases constitute one of the major challenges in modern medicine. Membrane-targeting have broad-spectrum potential and could distinguish viral membranes from the host cell plasma membrane by the difference in membrane curvature.

Promotor: M.A.G.J. Orrit

Op 1 juli 2020 verdedigde Niek Strohmaier zijn proefschrift 'Making Sense of Business Failure'. Het promotieonderzoek is begeleid door promotoren prof.dr. J.A.A. Adriaanse en dr. H. Pluut.

Metal complexes and 2D materials like graphene were combined to produce structures that can function as sensors.

Het belangrijkste doel van dit onderzoek was het bevorderen van de aspecten van de symbol sense die studenten in staat stellen algebraïsche formules te doorzien en niet-standaard algebra problemen aan te pakken.

Promotor: Prof.dr. T. Schmidt

Pericytes, the mural cells of blood microvessels, are important regulators of vascular morphogenesis and function that have been postulated to mechanically control microvascular diameter through as yet unknown mechanisms.

Farmacoloog Amanda Foks is een van de tien getalenteerde wetenschappers die een Dekkerbeurs hebben ontvangen van de Hartstichting. Ze krijgt €427.000 om een manier te vinden om afweercellen te verjongen, om zo infarcten te voorkomen. In 2016 was Foks nog genomineerd als Ontdekker van het Jaar.

The next generation of high-contrast imaging instruments on space-based observatories requires sophisticated wavefront sensing and control in addition to a high-performance coronagraph.

There is accumulating evidence for an increase in severe global drought events. In particular, Europe experienced several severe droughts in 2003, 2015, and 2018 (unprecedented in the past 2,110 years). Such droughts have caused serious and far-reaching impacts on terrestrial ecosystems.

Vanaf september 2024 is Amanda Henry begonnen in een nieuwe rol als bijzonder hoogleraar over de evolutie van het menselijke dieet bij Naturalis Biodiversity Center in Leiden. Ze zal deze positie gebruiken om nauwere banden te smeden tussen de Faculteit der Archeologie en Naturalis, en manieren te verkennen…

The marine shipping industry is one of the strongest emitters of nitrogen oxides (NOx), a pollutant detrimental to ecology and human health. Over the last 20 years, the pollution produced by power plants, the industry sector, and cars has been decreasing.

Promotor: Prof.dr. C.U. Keller, Co-promotor: Frans Snik

From 5 to 7 June, the conference "The Senses, Cognition, and the Body in Medieval Devotional Practices" will take place at the University of Padova. The conference programme can be found below. The conference can be attended virtually through the registration link below.

Promotores: Prof.dr. C.U. Keller, Prof.dr. H.C. Gerritsen

Image segmentation is a fundamental task in computer vision, with applications ranging from medical diagnostics to archaeological research.

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.

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

On 5 and 6 june 2024, the conference The Senses, Cognition, and the Body in Medieval Devotional Practices is organised at the University of Padova. The organisers welcome abstracts for 25-minute papers in English or Italian, to be submitted by November 30.

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

Patterned detectors are an existing technology that can be found in almost all color cameras.

De onderzoeksgroep Digital Archaeology beheert twee computerlaboratoria voor verschillende doeleinden: een onderwijslab en een onderzoekslab.

Leidse fysici ontwikkelden een elegante meetmethode om supersnel elektrische geleiding in superdun materiaal te meten.

A management strategy has been developed for field margins to reduce pesticide drift to non-target areas and to promote biodiversity on arable land. To this end, 3 and 6 m wide strips along the edges of winter wheat, sugar beet and potato crops have been left unsprayed with herbicides and insecticides…

De Leidse Faculteit der Archeologie is de grootste academische instelling voor Archeologie in Nederland en een van de grootste ter wereld. Ze behoort tot de internationale top en staat in de top tien van de QS World University Ranking per vakgebied.

More than 5,000 exoplanets have been found over the past couple of decades. These exoplanets show a tremendous diversity, ranging from scorching hot Jupiters, common super-Earths, to widely separated super-Jupiters on the planet/brown dwarf boundary.

One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…