Professor Dirk Vandewalle is een internationaal veelgevraagde en gerenommeerde Libië-expert. In deze lezing gaat hij in op twee essentiële vragen over de huidige situatie in Libië. Hoe komt het dat het Libische politieke systeem zo fragiel geworden is? En hoeveel hoop is er nog dat Libië als eenheid…

Kunst en vrije tijd, Kunst en vrije tijd

Promotor: E. Bouwman, Co-promotor: S. Bonnet

Bega je een misdrijf, dan krijg je een passende straf; elke rechtsstaat kent dat uitgangspunt. Maar wat zijn precies rechtvaardige en effectieve straffen?Leidse onderzoekers geven nieuwe informatie en inzichten over straffen aan politici, wetgevers, handhavers en het publiek.

Linda Dielemans is een succesvol schrijfster van jeugdboeken. Drie romans heeft ze nu op haar naam staan, alle drie spelen ze zich af in de prehistorie. Daarnaast werkt ze aan archeologische schrijfopdrachten en is ze nog actief als veldarcheoloog. “Er is niets beter dan de afwisseling tussen schrijven…

Promotor: E.F. Smets Co-promotor: J. Geml

Tin electrodeposition applications have rapidly evolved in the past 25 years.

Phospholipase A/acyltransferase 3 (PLAAT3) and PLAAT4 are enzymes involved in the synthesis of bioactive lipids. Despite sequential and structural similarities, the two enzymes differ in activity and specificity.

Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.

Pectin is a plant cell wall polysaccharide made of mainly D-galacturonic acid (GA) subunits. The potency of the filamentous fungus Aspergillus niger to naturally secrete high amounts of pectinases to degrade pectin has been utilized for the industrial production of pectinases.

Promotores: Prof.dr. G.W. Canters, Prof.dr. T.J. Aartsma

Promotor: G.R. de Snoo, Co-promotor: C.J.M. Muster

Detecting planets during their formation stages is crucial for understanding the history and diversity of fully developed planetary systems like our own. However, observing young planets directly is challenging because they are often deeply embedded within their host protoplanetary discs, rich in gas…

Een afstudeerceremonie op je studentenkamer achter je laptop is een enorme anticlimax. Veel studenten die tijdens de coronaperiode afstudeerden, konden hun studie niet feestelijk afsluiten. Om dit goed te maken, mochten ze op vrijdag 26 mei alsnog hun handtekening komen zetten in het Zweetkamertje.

In this dissertation, we work towards an experiment in which we aim to bring a micrometer sized magnet at the tip of a soft cantilever into a superposition.

Protoplanetary disks are the gas and dust environments where planetary systems form around young stars. Using observations from the Atacama Large Millimeter/submillimeter Array (ALMA) this thesis analyses the gaseous molecular reservoir, using multiple tracers to resolve the 3D structure of protoplanetary…

The main object of study in this thesis is an Arakelov inequalitywhich bounds the degree of an invertible subsheaf of the direct image ofthe pluricanonical relative sheaf of a semistable family of curves.

Ze droomden van Brussel, werkten hard en uiteindelijk lukte het: werken voor Europa. De lijst met alumni van de Universiteit Leiden in Brussel is lang. Julia Gencheva en Vincent Míča vertellen over hún baan in Brussel en roepen iedereen op om te stemmen. ‘De beslissingen beïnvloeden ook jouw dagelijkse…

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

Understanding how galaxies form, interact, and evolve comes largely from comparing theory predictions with observational data. Numerical simulations of galaxies provide the most accurate approach to testing the theory, as they follow the non-linear evolution of gas and dark matter in great detail and…

This article 'Shaping the European External Action Service and its post-Lisbon crisis management structures: an assessment of the EU High Representatives’ political leadership' assesses the role, influence and core aspects of the EU High Representatives’ (HR/VPs) “political leadership” in the context…

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

Enzymes are innately sensitive to changes in the amino acid sequence, which largely constrains their evolutionary potential, i.e., evolvability. This evolutionary burden can be alleviated in the presence of stabilizing mutations, which increase the buffering capacity of enzymes to tolerate mutations…

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

LCA has become an important method to study environmental impacts of human activities. Still, there are several methodological issues in LCA that can adversely affect the results reliability.

By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.

In this thesis it is posed that the central object of preference discovery is a co-creative process in which the Other can be represented by a machine. It explores efficient methods to enhance introverted intuition using extraverted intuition's communication lines.

In multi/many-core System-on-Chips (SoCs), the performance is almost linearly scaling with the number of processing elements.

In order to gain a better insight into the basis of the rapid jasmonic acid (JA)-mediated stress response, an integrated approach using a targeted high-resolution mass spectrometry-based (HRMS) platform, was conducted to monitor the metabolism of JA using the model system of cell suspension cultures…

This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.

The goal of this thesis is to understand how interfacial parameters, such as the addition of organic additives, bulk pH or metal cations of the electrolyte, affect the relevant electrocatalytic reactions, i.e. electrochemical CO2 reduction reaction or hydrogen evolution reaction.

In this thesis, we have studied cell images from two types of cells, including pollen grains and the immune cells, neutrophils. These images are captured using a bright field microscope and a confocal microscope.

In this thesis, we aim to shed light on the diverse and often opposing roles of integrin α3β1 in cancer.

The use of N fertilizers has increased worldwide in the past century. While this increased input of N has increased food productivity, it has also contributed to decreases in biodiversity, soil quality and environmental health, including increases in greenhouse gas emissions.

In this thesis, we will utilize embryonic zebrafish tumour models to understand the interaction between engrafted human cancer cells and macrophages from the host, test drug administration modalities and anti-cancer efficacies of newly-developed PDT and PACT compounds, and test a light-triggered liposomal…

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

Global Environmental Extensions Multi-Regional Input-Output (EE-MRIO) analysis is often used to analyze how changes in global and national demand for products lead to socioeconomic and environmental impacts at the national level.

Promotores: G.R. de Snoo, W.T. de Groot, Co-promotor: C.J.M. Musters

For each living organism health is ensured by correct functioning of its cells. Cells therefore have elaborate methods for regulation of their proteins.

Novel entities may pose risks to humans and the environment. The small particle size and relatively large surface area of micro- and nanoparticles (MNPs) make them capable of adsorbing other novel entities, leading to the formation of aggregated contamination.

Promotor: P. J. J. Hooykaas, Co-promotor: R. Offringa

Innovation plays an essential role in firms' competitiveness and long-term success. It varies from different types, ranging from run-of-the-mill innovation that brings incremental changes to existing technologies to radical innovation that breaks from existing trajectories.

Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn Co-promotor: Dr. M.J.M. Schaaf

The function of TLRs in innate immunity has aroused worldwide attention soon after its discovery. Because of the broad functions of TLR2 in innate immunity, the drive for the development of TLR2-targeted vaccines or therapeutic treatments has accelerated in the last decades.

This collection of papers was compiled in celebration of the remarkable academic career of Professor Wil Roebroeks, who has established himself as one of Europe’s leading figures in Palaeolithic archaeology over the past three decades and founded the Human origins research group at Leiden University…

Alumni-activiteit

Onze kersverse vlogster Iris ging voor haar eerste Leiden Law Vlog op bezoek bij alumna Caroline Koetsenruijter.

Bij Cambridge University Press (CUP) verscheen onlangs van Ingrid Leijten het boek Core Socio-Economic Rights and the European Court of Human Rights. Het boek maakt onderdeel uit van de serie Cambridge Studies in European Law and Policy en heeft als onderwerp de bescherming van sociaaleconomische rechten…

De faculteit waardeert het wanneer alumni iets terug willen geven aan de faculteit. Of het nu een gift, advies of een deel van uw tijd is, we zijn er heel dankbaar voor. Bijdragen zijn door de eeuwen heen onmisbaar geweest om de kwaliteit van onderzoek en onderwijs op hoog niveau te houden.