An investigation into how racial stereotypes were created and used in the European Middle Ages.

On the 9th of November Syahril Siddik successfully defended a doctoral thesis and graduated.

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

In a podcast episode of 'New Books in History' Claire Weeda talks about her book 'Ethnicity in Medieval Europe 950-1250: Medicine, Power and Religion'.

The Centre is the proud home of several research programmes.

How can we quantify the density of species within a community through environmental DNA concentrations?

Research aims: Identification of key genes involved in programming the cellular architecture of A. niger & Genetic engineering of A. niger in order to improve its secretory capacities and rheological behavior under industrial fermentation conditions.

1. What is the exact role of PIN proteins in PAT? 2. How is PIN polarity established, and how is it modulated by AGC kinase-mediated phosphorylation? 3. What is the role of the AGC kinase, as modulators of PAT, in translating environmental signals, such as gravity, light or mechanical stress, to plant…

Do sustainability values play a role in motivating people to act for biodiversity in successful projects and in successful leadership action? And how could these values be incorporated in current economic valuation methods?

The Faculty of Science

Lecture, Leiden Yemeni Studies Lecture Series

China’s booming aquaculture industry is increasingly dependent on fishmeal made from wild-caught fish, a practice that depletes wild fish stocks. A new study conducted by institutions including Leiden University and Stanford offers a more sustainable path. The study appeared in the journal Science on…

Promotor: Prof.dr. H.P. Spaink Co-promotor: Dr. B.E. Snaar

Do large deletions represent a risk during CRISP/CAS9-mediated genome editing in plants?

Andrea Giolai defended his thesis on 3 May 2017.

The world we live in is changing in many aspects at an ever-increasing speed. And it will continue to do so. How do we anticipate these changes, such as the increase in atmospheric CO2, the extinction of species and industrialisation?

This monograph, written by dr. Dennie Oude Nijhuis and published by Cambridge University Press, discusses the postwar development of the welfare state.

The mycorrhizal symbiosis is among the most widespread species interactions on Earth⁠. This thesis focuses on orchid mycorrhiza, a unique mycorrhizal type that has caught scientists’ attention for centuries⁠.

The Near East, situated at the nexus of Europe, Africa, and Asia, was central to the development of ancient societies in all three continents.

PNEC-pro is a user-friendly screening tool for professionals dealing with the assessment of surface water quality. The tool calculates local, watertype specific no-effect concentrations (PNEC) of copper, lead, nickel, and zinc based on biotic ligand models (BLMs).

Religion, Class, and the Postwar Development of the Dutch Welfare State. Dennie Oude Nijhuis.

What invertebrates are available to feed nestlings in an agricultural landscape of varied complexity?

The department of World Archaeology combines research and education about regions all over the world, from Human Origins to the Middle Ages, and from Europe, to Asia, Africa and the America’s. That broad range in time and space makes the department a dynamic pluriform community with many different approaches,…

This book investigates how gay-identified immigrants and refugees experience feelings of inclusion or exclusion within a sexually-charged online subculture. Explores the response of ethnic minorities to demonstrations of racism and xenophobia within an intolerant European climate. Challenges political…

Research on the process and construction of news stories about human rights issues in Latin American newspapers.

Understanding the water use of power production is an important step to both a sustainable energy transition and an improved understanding of water conservation measures. However, there are large differences across the literature that currently present barriers to decision making.

This doctoral thesis is an effort to understand how lipid phase-separation induced by diacylglycerol analogues in lipid-based nanoparticles affects their in vivo behavior, leading to specific nanoparticle-protein communications and selective cell targeting.

Promotoren: G.F.A. Kersten, W. Jiskoot, Co-promotor: J-P. Amorij

Conservation of biodiversity is one of the main challenges today. A higher degree of biodiversity results in ecosystems that can withstand adverse conditions and better provide essential ecosystem services. This is the case for both agricultural and natural systems.

Education in (Chinese) Medicinal Plants associated to the Hortus botanicus in Leiden - Which Traditional Chinese Medicinal plants can be grown in the Hortus? - Establishing of a database which Chinese medical plants are available in Dutch Botanical Gardens - Data validation (correct identification,…

Predictive maintenance (PdM) is a maintenance policy that uses the past, current, and prognosticated health condition of an asset to predict when timely maintenance should occur.

Streptomyces are bacteria abundant in soil that participate in diverse and complex interactions. These bacteria are the main producers of the antibiotics we currently use in the clinic.

In developing cooperation with Indonesia, Leiden University focuses on projects that benefit culture, nature, society and economy, in Indonesia as well as in the Netherlands.

Promotor: B. van de Water

Organisms often need to adapt more efficiently and devise new strategies for surviving difficult ecological circumstances.

Does roadside management in the mid-west USA increase invertebrate diversity similar to practices in Europe?

Promotor: G.R. de Snoo, W. Kustiawan, Co-promotor: H.H. de Iongh

Promotor: H.J.M. de Groot, Co-Promotor: A. Alia

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…

Christopher Green defended his thesis on 26 February 2020

How does FoxP1 affect auditory perception on a behavioural and genomic level?

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)

Leiden Journal of Pottery Studies 21, 2005

This paper written by Alexandre Afonso, Assistant Professor and Researcher at Leiden University, argues that gender norms and the political strength of the left were important structuring factors regarding why European countries choose migrant labour to expand their labour force in the decades that…

Promotor: E. Gittenberger, Co-promotor: B.W. Hoeksema

This collection of essays details the political life of one of the most prominent and gifted American statesmen of the twentieth century. From his early training in international law to his five terms in the US Senate, J. William Fulbright (1905--1995) had a profound influence on US foreign policy,…

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

Promotor: M.L. van Hecke, Co-Promotor: B.P. Tighe