What are trait-trait relationships in wetlands? To what extent the so-called leaf economics traits deviate from terrestrial ecosystems? How traits specific to wetland plant relate to plant strategies? What’s the relationship between wetland plant traits to the ecosystem functioning (e.g. productivity,…

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.

In november 2020 is het Engelstalige boek ‘Financial Collateral; Law and Practice’ verschenen. Het boek is gepubliceerd door Oxford University Press en geredigeerd en geschreven door professor Matthias Haentjens. Voorts hebben meegeschreven Anthony Zacaroli (High Court, Chancery Division), Yael Diamant…

Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule.

In human cells, a meter-long DNA is condensed inside a micrometer-sized cell nucleus. Simultaneously, the genetic code must remain accessible for its replication and transcription to functional proteins.

The chemical and structural heterogeneity of toxoid vaccines makes their analysis challenging. However, detailed insights on a molecular level can be obtained by mass spectrometry.

In this thesis integral points on affine del Pezzo surfaces are studied.

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.

Growth hormone profiles are pulsatile and highly variable between individuals, limiting the implementation of mathemathical models to quantify an individual's secretion.

Promotores: R. Cramer, A.K. Lenstra, Co-Promotor: B.M.M. de Weger

Statistical considerations guide the design and implementation of the experiments that scientists perform. For instance, in a clinical trial about a the efficacy of a treatment, its effect in a certain minimum amount of patients has to be observed in order to make confident assertions about the efficacy…

Soil is a home for an unbelievable diversity and abundance of microbial life that is essential for supporting life on our planet.

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.

Promotor: B. van de Water

Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M. Bongards (Cologne University)

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)

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

Promotores: W. Jiskoot, F. Ossendorp

Nanoparticles can be used as delivery systems for both small molecules and macromolecules such as proteins, peptides or oligonucleotides. This thesis focuses on the use of liposomes, nanometric vesicles formed by a lipid bilayer enclosing an aqueous core. Liposomes are highly versatile delivery syst…

Developing robust algorithms and theory for establishing cause-effect relationships from observational data that scale up to large data sets

This thesis seeks to combine two different research topics; Multi-Objective Optimization and Complex Network Analysis.

Promotor: Prof.dr. D. Bouwmeester

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.

The genetic information of all living organisms is contained in their DNA. Cells modify the degree of DNA compaction by epigenetics, which largely determines what genes are read out and which genes are transcriptionally silent.

Naast het feit dat angstproblemen veelvoorkomend zijn en het daarom belangrijk is om hier effectieve preventieve programma’s en behandelingen voor te ontwikkelen, is dat in deze tijd extra relevant.

Governance and Global Affairs, Instituut Bestuurskunde

ICLON

Wiskunde en Natuurwetenschappen, Centrum voor Milieuwetenschappen Leiden (CML)

Voor veiliger digitaal verkeer is aanscherping van de wettelijke kaders noodzakelijk. Bovendien moeten de grootste cyberdreigingen geïdentificeerd worden.

Development of scenarios for 2050 detailed in an IO framework

Op donderdag 2 september jl. trad Maaike Lycklama à Nijeholt op als keynote spreker op het behavioral risk congres in Utrecht. Zij deed dit samen met Desiree Meurs, onderzoeker bij Hogeschool Rotterdam. Het congres vond plaats in Pathé in Leidsche Rijn. Het thema van het congres was “innovatief toezicht…

A single self-assembled semiconductor quantum dot in a high-finesse optical microcavity - the subject of this thesis - is an interesting quantum-mechanical system for future quantum applications. For instance, this system allows trapping of an extra electron and thus can serve as a spin quantum memory,…

What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?

Hoe kan de methode om de gecombineerde effecten van metaal-gebaseerde chemische stoffetn te bepalen worden verbeterd?

Het Center for Interdisciplinary Placebo Studies Leiden (IPS) streeft naar een beter begrip van placebo- en nocebo-effecten, hun onderliggende mechanismen en hun mogelijke toepassingen in de klinische praktijk. IPS bestaat uit een groep interdisciplinaire onderzoekers die werken aan de Universiteit…

Werken aan ICT bij een topuniversiteit? Met uitstekende carrièremogelijkheden? Ontdek het werken bij het ICT Shared Service Centre van de Universiteit Leiden.

A neurocognitive investigation of the development of social performance monitoring in youth growing up in stressful versus non-stressful environments

How can we broaden youth participation in STEM Learning

Synthetic hydrogels that mimic the natural extracellular matrix in the biophysical and biochemical cues it provides to cells are in high demand, however the cell phenotypes as they are observed in vivo in numerous cases have yet to be attained.

Do sustainability values play a role in motivating people to act for biodiversity in successful projects and in successful leadership action? And how could these values be incorporated in current economic valuation methods?

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?

How can mega sand nourishments, such as the Sand Motor, be designed and managed for optimal ecosystem services provision ?

How do you make a technology sustainable that does not even exist yet? Well, by bringing together an interdisciplinary team of pioneering European experts right at the start and paying attention to sustainability right from the development phase.

Wiskunde en Natuurwetenschappen

This pioneering project will answer this question by examining migrants through the eyes of the courts between 1600 and 1900. It aims to reveal patterns of continuity and change in: 1. Treatment of migrants by criminal courts; 2. Violence and conflicts between migrants and native born.

Description of Effects of glufosinate-ammonium on off crop vegetation.

Describe and identify what dosimetry parameters are of importance to interpret dose-response relationships (eg., mortality, sub-lethal, growth or reproduction inhabitation, DNA damage and reactive oxygen species, etc. ) for metal-based nanoparticles? How to develop quantitative models that enable to…