Promotor: J. Zaanen, Co-Promotor: V. Juricic

Geometric phases lead to a nontrivial interference result when an electron's different quantum mechanical paths choices encircle a magnetic coil in an Aharonov-Bohm experiment.

How can the development of constrictions in the blood vessels be reversed?

In the first part of this thesis we study the geometry of folding patterns.

In this paper, Kantorowicz argues that reverse party favoritism exists. He exploits the fact that during the SARS-CoV-2 pandemic crisis, the Polish government was keen to launch postal voting in the presidential elections scheduled for May 2020.

Promotores: Prof.dr. J.N. Kok, Prof.dr. M.R.V. Chaudron, Co-Promotor: P. van der Putten

“Transitional justice” is a field of practice, policy and study that focuses on the ways that societies respond to legacies of large-scale atrocities though tribunals, truth commissions, reparations, and other mechanisms.

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

On the 24th of October, Nurenzia Yannuar successfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Nurenzia on this achievement.

Escalating tensions in South China Sea have epitomized US–China relations for nearly a decade. Warning signs of a possible collision between a rising China and steadfast US, bring to light the need to think about ways that can halt and reverse the intensification of their confrontational moves.

This dissertation provides crucial but as yet missing empirical data on the tone accent opposition in the so-called

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

Diacylglycerol lipase (DAGL)-α and -β are enzymes responsible for the biosynthesis of the endocannabinoid 2-arachidonoylglycerol (2-AG). Selective and reversible inhibitors are required to study the function of DAGLs in neuronal cells in an acute and temporal fashion, but they are currently lacking.…

LCD screens use liquid crystals which have a high degree of order, even though they form a fluid. A new theory maps out the interplay between order, temperature and symmetry. Publication in Physical Review X.

Promotor: Prof.dr. R.M.H. Merks

Promotor: J. Zaanen

For the first time ever, Leiden biologists have found that the ‘nose’ of spirochetes – worm-shaped bacteria – have a two-fold symmetry. A remarkable discovery, as the ‘nose’ of every other bacterium has been found to have a six-fold symmetry. First author Alise Muok wrote a popular blog about the findings…

Promotor: Prof.dr.ir. J.W.M. Hilgenkamp, Prof.dr. J. van den Brink

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

Mechanical metamaterials are man-made materials which derive their unusual properties from their structure rather than their composition.

What are the behavioral, cognitive, and motivational consequences of decision reversibility?

PhD Defence

If three or more objects move around each other, history cannot be reversed. That is the conclusion of an international team of researchers based on computer simulations of three black holes orbiting each other. The researchers, led by the Dutch astronomer Tjarda Boekholt, publish their findings in…

Surface plasmons (SPs) are surface waves at the interface between a dielectric and a good metal, and are formed by the interaction between light and the free electrons at the metal-dielectric interface. They provide strong field confinement for optical fields, opening new possibilities for enhanced…

Lecture, Com(parative) Syn(tax) Series

Promotor: H.J.M. de Groot

PhD Defence

The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.

To be able to identify, slow down and reverse functional deterioration in the elderly to give them more years of good health.

PhD Defence

The Indigenous Calendars of Mexico and Guatemala

Kros

Promotor: Prof.dr.ir. T.H. Oosterkamp, N. de Jonge

Promotor: Prof.dr. J. Zaanen, A. Parnachev

Peak Performance: Collaborative Crisis Management Before and During International Summits. This comparative case study probes into conditions for collaborative governance in the security organisation of international summits.

This dissertation is an experimental study of laser-generated, atmospheric pressure, transient toroidal helium plasmas.

PhD Defence

PhD Defence

PhD Defence

Twenty years from now, the world population is estimated to be around 8.7 billion people, compared to the current 7.3 billion. In combination with the improvements in living standards and the corresponding growth in consumption, this will result in an enormous increase in the demand for food, consumables,…

Systems are called real-time systems, if the correctness of the system does not only depend on the correctness of the system output but also on whether the output is delivered on time.

The project will create a digital platform to document and disseminate the knowledge contained in the Reverse Tonindeye Codex (Nuttall) and its relation with the history of the Iya Nacuaa Teyusi Ñaña “Lord 8 Deer Jaguar Paw” in both Mixtec and Spanish. The codex and the history of this 12th century…

Lecture

Research question

Time schedule

The opening times of the Humanities buildings vary. The Lipsius building is opened during evenings as well, the other faculty buildings retain office hours.

Contemporary Maya Calendars