In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.

Op 8 juli 2020 verdedigde Andres Sarmiento Lamus zijn proefschrift 'The Proliferation of Dissenting Opinions in International Law'. Het promotieonderzoek is begeleid door promotoren prof.dr. L.J. van den Herik en prof.dr. Y.A.A.S. Radi (UCLouvain).

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

Plant architecture has distinct forms in different plant species, but also within a species the finalarchitecture of a plant is determined by its gradual development and changes therein induced by environmental conditions during the plant’s life cycle.

In the last decades, activity-based protein profiling (ABPP) has emerged as a powerful chemical tool that may aid the ever-challenging drug discovery process.

Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk

In this work, we investigate the minute circular dichroism effects of single nanoparticles.To this aim, we apply photothermal imaging with a polarization-modulated heating beam.

Promotores: H.W. Lenstra, K. Belabas (University of Bordeaux)

A modern ship design process is subject to a wide variety of constraints such as safety constraints, regulations, and physical constraints.

Systems with local constraints is a new finding in recent researches on complex systems. The heterogeneous spatial interactions and the temporal dependencies among those numerous units make it difficult to describe by traditional statistical physics.

Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M.R.V. Chaudron, Co-Promotor: M.T.M. Emmerich

Promotor: A.H. Meijer, Co-promotor: B.E. Snaar-Jagalska

With the energy transition toward a renewable energy supply and a CO2-neutral economy, electrification of the energy system is rising in importance, which leads to the challenge of long-term storage of renewable electricity.

The skin is our natural barrier and lipids are a key part of this barrier. In the outer skin layer, the stratum corneum (SC), lipids form a densely organized structure dependent on the composition of these lipids.

The aim of this thesis is to expedite and ensure the systematic accuracy of clearance scaling from adults to paediatric patients, with a special focus on drugs undergoing hepatic metabolism.

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…

To limit the effects of climate change, global average temperature since pre-industrial measurements are to be kept well below 2 °C preferably even at 1.5 °C.

The experiments described in this thesis employ local lentiviral knockdowns in brain areas of female zebra finches followed by behavioural assays consisting of preference and Go/Nogo tasks.

In analogy to mathematical proofs, the goal of a proof system is for a prover to convince a verifier of the correctness of a claim.

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

In this thesis it is posed that the central object of preference discovery is a co-creative process in which the Other can be represented by a machine. It explores efficient methods to enhance introverted intuition using extraverted intuition's communication lines.

This research delves into the unique cultural approach of the Tenggerese people, an Indigenous community in East Java, Indonesia, regarding elderly care. It focuses on their traditional practices of bakti (‘filial piety’) and sayan (‘mutual aid’), deeply ingrained in the community's lifestyle and va…

Detecting planets during their formation stages is crucial for understanding the history and diversity of fully developed planetary systems like our own. However, observing young planets directly is challenging because they are often deeply embedded within their host protoplanetary discs, rich in gas…

Breeding for resistance becomes more and more important because we want to reduce the use of pesticides. A fast and cheap alternative can be to make use of morphological or chemical markers.

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…

On a structural level, the properties featured by a majority of mechanical metamaterials can be ascribed to the finite number of soft internal degrees-of freedom allowing for low-energy deformations.

The PID-directed shift in PIN polarity has been broadly accepted as one of the essential mechanisms for the regulation of auxin transport polarity.

The plant hormone auxin plays a central role in the growth and development of plants. Auxin acts in a concentration dependent manner and polar cell-to-cell transport of this hormone determines its distribution in the tissues of plants. This polar auxin transport is mediated by several families of auxin…

Promotor: Prof.dr. J.P. Abrahams, Co-Promotor: N.S. Pannu

Time-series forecasting through modelling sequences of temporally dependent observations has many industrial and scientific applications. While machine learning models have been widely used to create time-series forecasting models, creating efficient and performant time-series forecasting models is…

The work described in this dissertation contributes to a better mechanistic understanding of nanoparticles in vivo. To achieve that goal, we used the zebrafish as a highly predictive pre-screening model of nanoparticles.

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

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.

M. Danhof, Co-promotores: J. Freijer, A. Yassen

Na 30 dagen hard werken is de experimentele replica van de ijzertijdkano van Vlaardingen Vergulde Hand klaar! Vlaardingse schoolkinderen zullen de kano op 16 februari te water laten.

Universitair docent Michael Crandol legt in het NRC uit welke vooroordelen bestaan over anime – zo heten tekenfilms en cartoons uit Japan – en hoe het stigma eromheen is ontstaan.

Promotie

The Keuzegids Universiteiten 2015 (Guide for Study Choice Universities) has awarded Leiden University with five ‘Top Rated Programmes’: Mathematics, Biomedical Sciences, Greek and Latin Language and Culture, Liberal Arts & Sciences: Global Challenges and Philosophy.

“Heel Frans en heel indrukwekkend.” Zo beschrijft drs. Isabelle Van de Calseyde de receptie op de Franse ambassadeursresidentie in Den Haag, op 2 juni 2015, waarbij zij en dr. Sjef Houppermans een onderscheiding gekregen hebben voor hun uitzonderlijke verdiensten voor de Franse taal en cultuur. Beiden…

Op het platform Things That Talk publiceren studenten verhalen over objecten van musea, uit de vele collecties van de universiteitsbibliotheek, én de stad. Een interview met Fresco Sam-Sin, de bedenker ervan. Sam-Sin: ‘Things That Talk is een manier om met elkaar te praten over de inrichting van ons…

Promotie

Promotie

In het historische Hodshon Huis te Haarlem heeft Joris Oddens op dinsdag 27 september de Dirk Jacob Veegensprijs in ontvangst genomen. Hij heeft deze prijs gekregen voor zijn gepubliceerde werk en in het bijzonder voor Pioniers in schaduwbeeld. Het eerste parlement van Nederland 1796-1798. Dit proefschrift…

Hoogleraar Modern Japan Studies Katarzyna Cwiertka kreeg een Vici-subsidie van 1,5 miljoen euro voor haar onderzoeksproject Garbage Matters: A Comparative History of Waste in East Asia. ‘Ik wil iets doen wat anderen niet hebben gedaan.’

Wiskunde en Natuurwetenschappen, Centrum voor Milieuwetenschappen Leiden (CML)

Kennis van moslimsamenlevingen is onmisbaar om in een geglobaliseerde wereld te kunnen functioneren en om onze eigen Nederlandse maatschappij goed te begrijpen. In Leiden verdiepen onderzoekers zich in de talen, cultuur, religie, rechtssystemen en geschiedenis van moslimsamenlevingen en zetten daarmee…

Description of Development of a low cost technology for in-situ treatment of groundwater for potable and irrigation purposes (TiPOT) (2004 - 2007)

Wiskunde en Natuurwetenschappen, Instituut Biologie Leiden (IBL)