Promotor: Prof.dr. T. Hankemeier, Co-promotor: R.J. Vreeken

Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.

In this thesis, we show that we can use Shimura’s CM theory to explicitly compute the Hilbert class field of any primitive quartic CM field.

This study investigates the syntax and distribution of the two elliptical phenomena Gapping and Fragments, as well as the movements involved in ellipsis contexts in general.

The work described in this Thesis is focused on the assembly of oligosaccharide fragments derived from a fungal polysaccharide, galactosaminogalactan (GAG) and fragments of the exopolysaccharide Pel, generated by Pseudomonas aeruginosa.

This thesis describes the design and synthesis of fragments of various cell wall carbohydrates of the Streptococcus species, including the branched Group B-specific antigen (GBC) of Group B Streptococcus, glycerol phosphate (GroP) modified group A carbohydrate (GAC), and the O-acetylated type 1 capsular…

Idrees Kanth defended his thesis on 7 May 2019

Few events have influenced our global order as intensely as the events of September 11, 2001.

Promotor: Peter Stevenhagen

A new research line is the development of liquid biopsy fingerprints to predict early Alzheimer’s disease (AD) stage in human in readily accessible body fluids in human (in collaboration with: Dr. Geert-Jan Groeneveld, CHDR; Prof. Elga de Vries, Free University Medical Center; and others).

Latent variable modeling of students' solution strategies and performance

Galaxies form and live inside dark matter haloes. As a consequence, they are exposed to the tidal fields generated by the surrounding matter distribution: this imprints a preferential direction to the galaxy shapes, which leads to a coherent alignment on physically close galaxies, called intrinsic a…

Dementia is a progressive disease, diagnosed at a relatively late stage when intervention may not be effective. Aim of the research is to study scans of brain networks to help discover the early network changes related to dementia. Early diagnosis may benefit effectiveness of future treatment.

What forms does religiosity take among Muslims in Europe today? How are answers to the question of what it means to be a Muslim in Europe reached in institutions of Islamic higher education, Muslim student organizations, and women’s organizations? What is the relation between the individual and religious…

Promotor: J.W.M. Frenken, Co-Promotor: R. Felici

The parliamentary elections in the Netherlands, scheduled for March 2017, are likely to result in a fragmented parliament and a complicated coalition formation process, according to Dutch political scientist Hans Vollaard (Leiden University).

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This thesis proposes multiple paths towards the development of a performance practice in Computer Music.

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).

Andrea Giolai defended his thesis on 3 May 2017.

Political scientists Tom van der Meer, Lisa Janssen (University of Amsterdam) and Tom Louwerse (Leiden University) analyse polls presented by the main polling agencies in the Netherlands, as well as micro-level panel data. They reach three main conclusions. First, vote intention polls in the Netherlands…

The main objective of this thesis was to develop clinically relevant survival models for patients with high-grade soft tissue sarcoma of the extremities, in particular the development and validation of prediction models for use in clinical practice.

To address the fundamental questions of how life on Earth emerged and how common life may be in the Universe, it is crucial to know the chemical composition of the planet-forming material.

In this thesis the most dominant academic perspectives pertaining to the relationship between myth and philosophy are questioned and repositioned and Plato’s use of myth is analyzed to demonstrate this reevaluation.

Organisations such as the EU are of enormous benefit to the member states, but the inhabitants of the member states are often unaware of this. Leiden researchers investigate whether international organisations such as the EU or ASEAN are able to influence global politics.

Promotor: M. Ubbink, Co-promotor: G. Siegal

Staging the Archive: Art and Photography in the Age of New Media is dedicated to art practices that mobilize the model of the archive, demonstrating the ways in which such archival artworks probe the possibilities of what art is and what it can do.

Three at the same time: a ligation strategy combining tetrazine–norbornene cycloaddition, Staudinger–Bertozzi ligation, and copper(I)-catalyzed click reaction was used to label the three catalytic activities of the proteasome simultaneously in a single experiment. The orthogonality of the three ligation…

What performance criteria does a new technology have to fulfill in order to be added to the list of future energy options and what constraints exist in terms of broad market penetration?

The overall aim of the project is to investigate interests and their development over time in a daily life context, with particular attention for the transition from late secondary to post secondary education, and from late post secondary education to early career.

Law

Science, Institute of Environmental Sciences (CML)

Bone remains that are thousands of years old are often too fragmented to be identified. PhD candidate Frido Welker is the first person to be able to distinguish human bones from one another on the basis of old proteins. PhD defence 18 May.

We will study how inoculation of former arable land with soil (including the microbiome, soil fauna and seeds/rhizomes of ground flora) from old forests along with planting targeted tree species mixtures will improve productivity and more rapidly restore forest-adapted communities and ulttimately result…

Promotor: M. Ubbink, Co-promotor: G. Siegal

Vacature (vrijwillig/stage)! 💬 Jij gaat het klimaat centraal zetten tijdens de verkiezingen van maart 2021. 📈

Disk formation around stars is an important factor in determining whether one or multiple stars evolve. But the big picture of star formation is still far from complete, says PhD researcher Nadia Murillo.

How has interreligious encounter in Ogbómòsó created multiple religious belongings and identities among individuals and groups?

Which factors (human-dimension and carnivore related) shape human tolerance of large carnivore and large carnivore survival in multiple use forests?

This thesis has three main parts. The first part gives an algorithm to compute Hilbert modular polynomials for ordinary abelian varieties with maximal real multiplication. Hilbert modular polynomials of a given level b give a way of finding all of the abelian varieties that are b-isogeneous to any given…

Leiden chemists discovered a new mechanism which might explain how multiple sclerosis shifts to a more severe form. Their findings contribute to unravelling the mysterious course of the disease. They have published their findings in the journal Biochemistry.

Jeroen Wolbers is Assistant Professor of Crisis Governance at the Institute for Security and Global Affairs, Leiden University. In the coming 4 years, Jeroen will study command tactics during sudden-onset crisis operations with his Veni grant. He will investigate how crisis managers can deal with fr…

Promotor: Peter Stevenhagen

Promotor: H.S. Overkleeft, Co-Promotor: B.I. Florea

In 2022, for one year, Leiden will be European City of Science. For humanities scholars, this offers enormous opportunities to bring their work to the attention of citizens. Rob Zwijnenberg, chairman of the steering committee that coordinates the faculty's contributions, talks about these opportunit…

Last week, the Old Observatory Leiden concluded its participation in Stage 1 of the DOORS Incubation Programme. Our team has spent the last three months learning about how to successfully implement digital practices into their work to improve our audience engagement. The workshops introduced important…

At this moment some users are experiencing problems with setting up an EduVPN connection. We are currently working on a solution.

The publication in Nature Ecology & Evolution about the so-called Siberian unicorns took centre stage in a Dutch radio interview.

This year’s edition of the prestigious art festival Ruhrtriennale, carried in diverse locations around the cities of Essen, Bochum and Duisburg (Germany), has re-staged De Materie, ACPA professor Louis Andriessen’s exceptional opera which overcomes traditional patterns of the genre in terms of dramaturgy,…