Afrika heeft een bevolking van 1,5 miljard mensen. In 2050 zal dit aantal naar verwachting stijgen tot 2,5 miljard. De impact van het continent op de wereldeconomie en samenlevingen, maar ook op het milieu, zal daardoor enorm toenemen.

What is the population size/structure and distribution of tiger and leopard inside the Bardia National Park (BNP) compared with the population outside? What is the movement and home range and conflict pattern in time and space of tigers and leopards inside the BNP compared with outside? What constitutes…

Op de Oude Sterrewacht bieden we een aantal manieren voor scholen om op bezoek te komen. Naast de rondleidingen die wij organiseren zijn er speciaal voor scholen ook workshops te doen.

Do selenium nanoparticles in fish food cause subtle alterations in behavior of fish: effect of particles size and concentration?

Duurzaamheid is een van de centrale aandachtspunten van de Universiteit Leiden en speelt een steeds grotere rol binnen het onderwijs en onderzoek van de Faculteit der Rechtsgeleerdheid. Binnen deze context levert de afdeling Sociaal Recht een belangrijke bijdrage aan het debat en onderzoek rondom Business…

Program for postgraduate research master seminar 'Current Issues in Religious Studies and Western Esotericism' 2024–2025 is online

This dissertation focused on computational methods based on first principles calculations using the Density Functional Theory (DFT) framework. Emphasis was laid on affordable methods that can provide a tradeoff between computational expense and accuracy.

We explored the Universe using weak gravitational lensing, a phenomenon that occurs when light from distant galaxies is bent by the gravitational fields of closer cosmic objects, much like how a lens distorts light.

Taxonomy as a science has accumulated data and knowledge for more than 250 years.

This thesis describes the design, characterization and application of dextran based crosslinked network.

The largest genus within the Phyllanthaceae family is a group called Phyllanthus L. Recent studies have shown, that Phyllanthus is paraphyletic with the genera Glochidion, Breynia and Synostemon nested within it.

Hoe en in welke mate kunnen groepen clinici en biomedici kennis uit klinische vakken en kennis uit de basisvakken expliciet maken en aan elkaar relateren?

Identification of the products or product groups that have the greatest environmental impact from a life-cycle perspective using environmentally extended input-output analysis.

Given the accelerating appearance of antimicrobial resistance, there is an urgent need for more fundamental research into novel antibiotic strategies. The work in this thesis helps to address this global problem by developing new antibiotic compounds, inspired by the antibacterial mechanisms of the…

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.

In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.

The research group Science Communication and Society aims to understand how science communication works to improve the interaction between science and society. Central themes are ‘Bridging the gap between experts and the general public’ and ‘Evaluating Science Communication’.

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.

The effects of anthropogenic noise on interactions between predators and their prey are still little understood.

Promotor: G.A. van der Marel, Co-promotor: D.C. Codée

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

The haplolepideous mosses (Dicranidae) comprise about 4000 species distributed over a wide range of habitats, with great gametophytic and sporophytic morphological variation. Their monophyly is well supported by the results of several molecular phylogenetic studies, which shed light on their relationships…

Taking as a point of departure the Italian American community in Boston and its process of collective remembrance surrounding Saint Anthony’s Feast, we addressing the limits and potential of montage.

Promotor: Prof.dr. H.P. Spaink, Co-promotor: Dr. M. van der Zee

Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).

De Faculty of Governance and Global Affairs

Sinds de United Nations Group of Governmental Experts on the Developments in the Field of Information and Telecommunications in the Context of International Security (UN GGE) elf aanbevelingen heeft gedaan over verantwoordelijk staatsgedrag omtrent cyberspace is er een discussie gaande over internationale…

Promotores: Prof.dr. J.N. Kok, Prof.dr. C.A. Mandemakers, Co-Promotor: G. Bloothooft

This thesis combines field and laboratory studies to address some of the most pressing questions in the field of microplastic research.

The endocannabinoid receptors CB1R and CB2R are involved in a plethora of processes, and consequently are involved in many pathological conditions. Their wide distribution makes the CBRs both an interesting therapeutic target and hard to study.

Industrial manufacturing processes, such as the production of steel or the stamping of car body parts, are complex semi-batch processes with many process steps, machine parameters and quality indicators.

Promotor: Prof.dr. A. Achucarro

Glycosidases (GHs) are enzymes responsible for the degradation of carbohydrates and play many roles in human health and pathophysiology. Often, abnormal levels of glycosidase activity are markedly linked to human pathologies.

In a typical glycosylation reaction, a donor is activated to form a (variety of) electrophilic species which can react with a nucleophilic acceptor, following a reaction mechanism having both SN1 and SN2 character.

We explored how to morphologically classify well-resolved jetted radio-loud active galactic nuclei (RLAGN) in the LOw Frequency Array (LOFAR) Two-metre Sky Survey (LoTSS) using machine learning.

Dit artikel geschreven door Marieke Liem & Alexander Kamprad onderzoekt de relatie tussen terrorisme en interpersoonlijk geweld. Ze voerden cross-nationale analyses uit over de effecten van mortaliteitscijfers voor het terrorisme op moordcijfers. Uit de resultaten bleek dat terrorisme sterk en positief…

The research described in this thesis focused on the use of bioorthogonal antigens to investigate immunological processes in antigen presenting cells. Bioorthogonal antigens are antigenic proteins produced through recombinant expression in a methionine auxotrophic E. coli strain.

In this thesis, rational points on K3 surfaces are studied. In the first part of Chapter 1 the Brauer group and the the Brauer-Manin obstruction are introduced.

Promotors: C.A.J. Knibbe, Anthonius de Boer, Co-promotor: M.M.J. van der Vorst

This thesis describes the use of a combined approach of computational and experimental techniques to gain novel insights to understand the glycosylation reaction and its reactive intermediates.

Promotor: J.N. Kok, Co-promotor: C.M. Soares, A.J. Knobbe

Galaxy intrinsic alignments induce a major astrophysical contamination to weak gravitational lensing measurements and need to be modelled and mitigated when extracting cosmological information from such measurements.

The experiences of ethnic ‘Other’ females have – until recently – been widely overlooked in the study of sport. There continues to be a need to produce critical scholarship about ethnic 'Other' girls and women in sport and physical culture, in order to represent their complex, multifarious and dynamic…

Promotor: S.J. Edixhoven, Co-promotor: R.S. de Jong

Atherosclerosis is a progressive disease resulting in the formation of an arterial plaque. Despite lipid lowering, recurrent cardiovascular events remain a risk. While atherosclerosis is primarily lipid-driven, the immune system plays a critical role in the pathophysiology.

De educatieve minor is in 2009 ingevoerd als een nieuwe route naar het leraarschap. De instroom van bètastudenten is laag, en ongeveer 20% van de studenten die de minor heeft afgerond stroomt door naar de educatieve master

Promotor: Prof.dr. B. van de Water

A new type of tripodal squaramide-based supramolecular hydrogels is developed and studied.

Filamentous Actinobacteria, such as Streptomyces, produce a plethora of chemically diverse bioactive metabolites that have found applications across medicine, agriculture and biotechnology.