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

Noah Millman defended his thesis on 26 May 2015

This project proceeds from the observation that since the second half of the twentieth century, forgiveness and reconciliation have become pervasive themes in western culture, both on a political level and in personal relations.

In my research, I focus on cooperation, social dilemmas, tacit coordination, uncertainty, sanctions and trust.

Material Culture Studies revolves around the analysis of the cultural biographies of all sorts of material objects from flint axes, to pottery, to houses and monumental structures.

Diede Farhosh-van Loon defended her thesis on 18 October 2016

Human skin equivalents (HSEs) can be a valuable tool to study aspects of human skin, including the skin barrier, or to perform chemical or toxicological screenings.

Bacteria are highly complex and diverse organisms that have adapted to survive in ecological niches ranging from the most extreme to the most heterogeneous environments.

In the Netherlands, levying tax on inheritances at death has been a fact of life for centuries. The presumed double taxation and its sad precursor are elements of the discussion about the levy of this inheritance tax, but so too are the possibilities to reduce the tax through ingenious legal constru…

Different ways in which physical environments impacted on the cultural imagination of Greco-Roman antiquity.

Sepsis is a life-threatening condition caused by a dysregulated host response to infection, it is associated with significant morbidity, mortality, and with a high financial burden on global healthcare systems. Bacterial infections are the primary cause of sepsis, but the growing prevalence of antimicrobial…

The Centre for Indigenous America Studies (CIAS) at Leiden University is designed to coordinate and promote the teaching and research of Indigenous languages, literatures, cultures and cultural heritage. Our aim is to contribute to an increased acknowledgement, recognition and understanding of Indigenous…

Bacteriophages, or phages for short, are the most abundant biological entity in nature. They shape bacterial communities and are a major driving force in bacterial evolution.

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

The external tissues of plants and animals are colonized by microbial communities termed microbiota. When organisms are exposed to environmental pollutants, these substances will therefore encounter microbiota at the exposure interface.

The research of the Applied Mathematics cluster is concerned with such diverse topics as dynamical systems, representation theory, differential equations and pattern recognition.

Selim Ahmetoğlu defended his thesis on 12 February 2019.

Leiden University wants its research and teaching to have a positive impact on society. In an effort to achieve this, many of our researchers collaborate with academic and community partners, non-governmental organisations and the business sector.

Southern Africa has a rich tradition of social history, one inspired by the tumultuous changes that have regularly convulsed the region from the 1780s onwards. Scholars have always sought to understand what these changes meant for everyday life and emphasised a perspective of marginal groups, how these…

Evolution & Biodiversity is one of the four research themes of the Institute of Biology Leiden.

Family, Work, and Household presents the social and occupational life of a late medieval Iberian town in rich, unprecedented detail. The book combines a diachronic study of two regionally prominent families—one knightly and one mercantile—with a detailed cross-sectional urban study of household and…

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Glycoside hydrolases (glycosidases/GHs) are widely abundant enzymes in all kingdoms of life and are important biocatalysts that catalyze the hydrolysis of glycosidic linkages in oligo/polysaccharides, glycoproteins and glycolipids with tremendous efficiency

The programme group Clinical Neurodevelopmental Sciences is one of the six groups within the Institute of Child and Education Studies at Leiden University. The group participates in all stages of the education programme: the bachelor's, master's and research master's programme.  The group is particularly…

Social Aspects of Space in the Configurational Architecture of Frankish Castles in the Holy Land, 1099-1291

This project aims to assess the risk of spread of antimicrobial resistance genes in the environment derived from currently used synthetic biology approaches in the field of drug discovery.

This book is about the workings of networks of the mobile in Africa, a continent usually associated with the ‘global shadows’ of the world.

De Pagus Renensis van de 4de tot de 8ste eeuw na Chr.: Een archeologische synthese

Where does the urge to collect come from? What are the explicit or underlying reasons for gathering large amount of objects?

How do genetic and environmental factors make us vulnerable to depression?

The word ¨pyroptosis¨ can be understood as ¨fiery falling¨, which describes the bursting of pro-inflammatory signals from the dying cell. Our observations indicate that pyroptosis also ¨spreads like wildfire¨ and once a cell dies via pyroptotic cell death, neighbouring cells are more prone to die as…

Erasmus+ Strategic Partnerships (Key Action 2) are transnational projects designed to develop and share innovative practices and promote cooperation, peer learning, and exchanges of experiences in the fields of education, training, and youth. There are two kinds of Strategic Partnership; those supporting…

The United Kingdom’s relationship with the European Union was supposed to be definitively settled several times during the past decade – yet it was not. The 2016 referendum brought about a surge in interest in legal questions, especially of EU law and international economic law. This presented scholars…

Diacylglycerol lipases (DAGLα and DAGLβ) convert diacylglycerol to the endocannabinoid 2-arachidonoylglycerol. Our understanding of DAGL function has been hindered by a lack of chemical probes that can perturb these enzymes in vivo.

Promotors: W. Jiskoot; G.J. Witkamp, Co-promotor: M.R. Nejadnik

What was the nature of the urban network in the Roman provinces of Germania Superior, Raetia and Noricum and how stood this in relation with economic and social developments?

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,…

On the 23d of May, Sanne Rotmeijer successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Sanne on this achievement!

French title: Entre la “détresse’’ et l’inter-connectivite : le case de Mbororo réfugies sur les frontières Cameroun-Centrafrique. This research project investigates the meaning of duress in the lives of nomadic refugees in Cameroon and investigates if and how the accessibility of new ICT’s allow them…

The Faculty of Humanities

Promotor: Prof.dr. E.F. van Dishoeck, Co-promotor: S. Bruderer

Making a dynamic substance stock model in order to conduct scenario analyses and make forecasts.

While self-driving cars and autonomous weapon systems have received a great deal of attention in media and research, the general requirements of ethical life in today’s digitalizing reality have not been made sufficiently visible and evaluable.

A Twenty-First Century Guide

The reintegration of high profile ex-offenders frequently receives great political and public attention. While this attention, more often than not in the form of negative sentiments, may be understandable from a moral perspective, it raises several important questions: how do such offenders reintegrate…

Acidobacteria is a widely distributed phylum but their functional roles in ecosystem processes are still largely elusive.

This project aims to explore, in general, what explains civil servants’ attitudes and behavior, and, in particular, why some civil servants are more committed to professional norms and public service values – such as impartiality, equity, efficiency, and innovation – than others.