This thesis covers various applications of topology in condensed matter physics and quantum information.

The thesis deals with the study of giant radio galaxies (GRGs), which are radio galaxies of megaparsec sizes.

Lezing

How were the Russians, under early modern conditions, able to incorporate this distant, undeveloped and, because frequent nomadic attacks, dangerous territory? And what role did the Kolyvan-Voskresensk plants play in this process?

Stars like the sun are born in large molecular clouds existing from gas and dust. During the formation process, the chemical composition of the material can be altered drastically by the changing physical conditions.

Where does the urge to collect come from? What are the explicit or underlying reasons for gathering large amount of objects?

Announcement of the publication of Vamping the Stage: Female Voices of Asian Modernities, the first book-length study of women, modernity, and popular music in Asia (University of Hawai'i Press, 2017).

Waarom bestudeerden negentiende-eeuwse geleerden Oudengelse religieuze teksten? Dit onderzoek laat zien hoe geloof, naast politiek en literatuur, hun interesse stuurde en hoe deze teksten het christelijke denken beïnvloedden in Europa.

How should jurisdictions, both on the national and on the supra-national level, handle the interaction between public and private law where it regards the regulation of financial markets?

Sinds de oprichting is LUC een college voor onderwijsontwikkeling en experimentatie. In de missie van het college wordt LUC beschreven als "een plek van innovatie op het gebied van didactiek, curriculumontwerp en studentwelzijn." Deze visie wordt toegepast via een studentgerichte benadering in het onderwijs…

De Leidse hoogleraar astronomie Mike Garrett zoekt naar tekenen van buitenaardse intelligentie. In zijn Kaiser Lentelezing op 23 april zet hij uiteen hoe ver de wetenschap op dit punt is.

The origin and evolution of galaxies are closely linked to many different physical phenomena.

Op 23 juni 2020 verdedigde Santy Kouwagam haar proefschrift 'How lawyers win land conflicts for corporations: Legal Strategy and its influence on the Rule of Law in Indonesia'. Het promotieonderzoek is begeleid door promotoren prof.dr. A.W. Bedner en prof.dr. C.E. von Benda-Beckmann.

A convolutional neural network (CNN) is a biologically inspired algorithm, highly capable at processing images and videos.

Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel

Humans share meaning through language. Over time, repeated interactions have shaped languages into forms that match our cognitive preferences, making them structured, expressive, easy to learn, and ultimately, meaningful.

N-acylethanolamines (NAEs), including N-arachidonoylethanolamine (anandamide, AEA), N-palmitoylethanolamine (PEA) and N-oleoylethanolamine (OEA), are signaling lipids that play an important role in different physiological process.

Uncertainty and noise are frequently-encountered obstacles in real-world applications of numerical optimization. The practice of optimization that deals with uncertainties and noise is commonly referred to as robust optimization.

We are living in an information era where the amount of image and video data increases exponentially.

Automated Machine Learning (AutoML) is widely used to automatically build a suitable practical Machine Learning (ML) model for an arbitrary real-world problem, reducing the effort of practitioners in the ML development cycle for real-world applications. Optimization is a key part of a typical AutoML…

In this thesis, topics relating to the optimization of high-throughput pipelines used for imaging are discussed. In particular, different levels of implementation, i.e., conceptual, software, and hardware, are discussed and the thesis outlines how advances on each level need to be made to make gains…

Despite being the second largest transmembrane protein family after GPCRs, the SLC superfamily has only gained significant attention in early drug development over the past decade.

Oratie

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

Participants in this course will learn to support student teachers and new colleagues in their professional development as teachers, with particular emphasis on the context of bilingual or international education, as in the ICLON World Teachers Programme (WTP).

Hieronder vind je de antwoorden op een aantal veelgestelde vragen over toelating tot de klinische specialisaties van de Master Psychologie.

Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo

Het doel van het onderzoek Samen stap voor stap vooruit is om bij te dragen aan kennis over effectieve interventiemogelijkheden voor gezinnen met zeer jonge kinderen (0-6 jaar) na ervaringen van huiselijk geweld. Het onderzoek bestaat uit drie verschillende deelstudies:

This thesis is a collection of theoretical works aiming at adjusting quantum algorithms to the hardware of quantum computers.

With the help of quantum mechanics, digital quantum hardware may be able to tackle some of the problems that are too difficult for ordinary computers. But despite these expectations and the ongoing effort of the research community, reliable quantum computers are not yet realized in a lab setting.

Waar gaan de quantummechanica, de relativiteitstheorie en de zwaartekracht elkaar vinden? Wat is het missende stukje? Of is er een compleet nieuwe theorie die alle vormen van materie elegant beschrijft?

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

In some condensed matter systems, such as the surface of a 3D topological insulator, the electrons are effectively massless and we must necessarily use the massless Dirac equation to describe them.

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

Hieronder vind je een overzicht van alle PRE-Classes die door de verschillende opleidingen van de Universiteit Leiden worden verzorgd. Bij elk onderdeel kun je een inhoudelijke beschrijving vinden en meer specifieke informatie over de eisen die aan deelname aan de betreffende Class verbonden zijn.

In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.

Subproject of the ERC project 'Challenging the Liberal World Order from Within: The Invisible History of the United Nations and the Global South'.

This research delves into a region of space known as the interstellar medium (ISM), which is essentially the area between the stars filled with gas and dust.

Bij de Onderzoeksgroep Geweld en Geweldpreventie (Violence and Violence Prevention) wordt onderzoek gedaan naar de complexiteit van hedendaags geweld, de uiteenlopende verschijningsvormen ervan en strategieën voor preventie.

Surface acoustic waves (SAWs) are mechanical waves that travel along the surface of a material and find many applications in modern technologies due to the ease of excitation on piezoelectric substrates via interdigital transducers (IDTs).

Plant exudates appeared long time ago in the history line of life in the early Devonian. They are typical saps produced by specialized cells.

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

Over the last decades, aviation safety has improved strongly. As a downside, airline pilots do not have as many opportunities to develop through experience the competencies that they need in critical situations.

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

The following report discusses a survey on the topic of the Sustainable Development Goals that was distributed among researchers at Leiden University in the month of November 2021.

In this thesis we study bistable reaction-diffusion equations on lattice domains.

Op 7 december 2021 verdedigde Georgina Kuipers het proefschrift 'Beschadigd vertrouwen'. Het promotieonderzoek is begeleid door prof.mr. W. den Ouden en prof.dr. M.A. van der Steen (EUR).

Promotor: Prof.dr. E Gittenberger, Co-Promotores: C.H.J.M. Fransen, B.W. Hoeksema

This dissertation presents new cryptographic protocols, which can be divided into two families.