Multicellular giant algae Chara species have been widely used in physiological studies for decades.

Despite being the object of intense study, embryonic development has been difficult to model due to a number of reasons. First, complex tissues can be comprised of many cell types, of which we probably only know a subset.

This thesis describes how to scale down concepts of macroscopic mechanical metamaterials to the thermal scale using a system of flexibly-linked colloids.

We use DNA strands to stabilize few-atom silver clusters, which show unique optical and chemical properties. This thesis involves the study of these constructs for various applications.

Promotor: M.A.G.J. Orrit

Mechanical metamaterials are carefully engineered materials whose properties are controlled by their structure, not by their composition, which allows using metamaterials to study and control physical effects in detail⁠.

Promotor: Prof.dr. L.J. Slikkerveer

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

It has been a long-standing mystery how complex biological structures emerge from such seemingly uncoordinated building blocks as cells and tissues, in the presence of only minimal environmental guidance.

Handbook of Signal Processing Systems is organized in four parts. The first part motivates representative applications that drive and apply state-of-the art methods for design and implementation of signal processing systems; the second part discusses architectures for implementing these applications;…

Op 14 november 2019 verdedigde Luis Fiallos Pazmino zijn proefschrift 'Legal Perspectives on the Cross Border Operations of Unmanned Aircraft Systems'. Het promotieonderzoek is begeleid door promotoren prof.dr. P.M.J. Mendes de Leon en prof.dr. E.C.P.D.C. De Brabandere.

Promotor: Prof.dr. J.M. van Ruitenbeek, Prof.dr. R.M. Tromp

Promotor: M. Danhof Co-promotor: O.E. Della Pasqua

Promotor: H.P. Spaink, A.H. Meijer Co-promotor: R. Marin-Juez

Promotor: Jan van der Greef; Co-promotors: Mei Wang; Eduard van Wijk

The demand for neodymium-iron-boron (NdFeB) magnets is rapidly growing, while the neodymium supply chain is under pressure. Recycling can alleviate these issues. This thesis investigates the potential for deploying novel magnet recycling technologies and their environmental consequences.

The ability to count is a property not often attributed to materials, despite the abundance of memory in materials. Regardless of how a material stores information, it is often difficult to retrieve exactly ‘what’ a material remembers.

Op 29 januari 2019 verdedigde Robbert van Eijk proefschrift 'Web Privacy Measurement in Real-Time Bidding Systems, A Graph- Based Approach to RTB system classification'. Het promotieonderzoek is begeleid door promotor prof. dr. H.J. van den Herik.

On Friday 23 September 2016 the Leiden Complex Networks Network day, the LCN2 day, will take place in Leiden.

The increasing competition in the automotive industry requires the tailored, swift development of technologically sophisticated vehicles. Therefore, the computationally expensive state-of-the-art simulation technologies are combined with optimization algorithms. An example of a real-world optimization…

Promotor: B. van de Water

Utilizing the polymeric platform of polypept(o)ides, this thesis describes synthesis and investigation of novel triblock copolymers to obtain carrier systems with multiple compartments for efficient siRNA delivery. Although the individual microstructure of nanoparticles differs depending on the polymeric…

Effective policy-making requires understanding what truly causes a problem. Only then can policymakers develop targeted interventions that achieve desired outcomes.

Op 24 september 2020 verdedigde Bernardo Ribeiro de Almeida zijn proefschrift 'Building land tenure systems: the political, legal, and institutional struggles of Timor-Leste'. Het promotieonderzoek is begeleid door promotor prof.dr. A.W. Bedner.

Het FAIRDOM-consortium is een open initiatief van verschillende partners, waaronder financieringsprogramma's, grote consortia, instituten, kleine groepen en individuen.

Electoral Systems and Turnout: Evidence From a Regression Discontinuity Design. In dit artikel, gepubliceerd op de website SAGE research methods, bespreken auteurs Jaroslaw Kantorowicz en Tobias M. Hlobil hoe een Regression Discontinuity Design uitgevoerd kan worden.

This thesis deals with the use of sound in interactions in the context of participatory systems and data sonification. We investigate an interactive environment where participants perceive information of the data through sound elements.

Op 17 december 2018 verdedigde Dejian Kong zijn proefschrift 'Civil Liability for Damage caused by Global Navigation Satellite System'. Het promotieonderzoek is begeleid door promotor prof. dr. P.M.J. Mendes de Leon.

This thesis examines silicon pore optics (SPO), a technology that exploits silicon wafers from the semiconductor industry to create extremely high quality X-ray optics, by studying its manufacturing process, applications, and prospects.

This thesis describes the synthesis and biological evaluation of TLR2/6, TLR4, TLR7/8 and TLR9 ligands, of which the activity can be conditionally controlled.

This thesis presents insights from our study of various correlated electron systems with a scanning tunneling microscope (STM). In ordinary metals, electron-electron interactions exist, but get substantially screened due to the sheer number of electrons.

Quantum hardware comes with a different computing paradigm and new ways to tackle applications. Much effort has to be put into understanding how to leverage this technology to give real-world advantages in areas of interest for industries such as combinatorial optimization or machine learning.

DNA carries various forms of information. Out of these forms of information the most well-known is classical genetic information.

Ferritin is a spherical metalloprotein, capable of storing and releasing iron in a controllable way. It is composed of a protein shell of about 12 nm and within its cavity, iron is stored in a mineral form.

This dissertation combines the use of defined microenvironments, high-resolution fluorescence microscopy, and time-resolved analysis, to study intracellular and cellular motility.

The way organisms develop from the initial single-cellular state to a complex final assembly like the human body, and how the final body is maintained throughout life, is one of the greatest mysteries and it’s understanding one of the biggest scientific challenges.

Promotor: Prof.dr. M. Danhof

Solar energy is used by photosynthetic organisms to drive energy required cellular processes. Is absorbed by two groups of pigments, located in the LHCs.

This thesis pioneers diatom molecular identification and quantification through genome-scale methods, with four key aims: (i) reviewing DNA/RNA sequencing methods in aquatic biomonitoring to highlight their strengths and limitations;

Quantum computing is an emerging technology, which holds the potential to simulate complex quantum systems beyond the reach of classical numerical methods.Despite recent formidable advancements in quantum hardware, constructing a quantum computer capable of performing useful calculations remains challenging.In…

This study has been carried out in the community of Sukamiskin, a kelurahan (‘village’) in Bandung, the Capital of West Java Province, located in the Sunda Region of Indonesia.

To answer questions that look beyond individual entities, network science studies the interactions taking place in complex systems. These complex systems can often have temporal information on when an interaction occurs.

Promotor: Prof.dr. E. Bouwman

Hoe kun je leerlingen en studenten leren grip te krijgen op complexe ‘moerassituaties’? Oratie uitgesproken door prof.dr.ir. Fred Janssen bij de aanvaarding van het ambt van hoogleraar in de Didactiek van de Natuurwetenschappen aan de Universiteit Leiden op 19 juni 2017.

Multicopper oxidase, laccase, can efficiently reduce oxygen to water and are mostly used in the enzymatic biofuel cells.

Promotores: Prof.dr. H. van Veen & Prof.dr. W. de Boer (Wageningen University)

Quantum computing represents a fundamentally new computational paradigm, capable of addressing problems that are intractable for classical computers.