The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

Promotor: J. Aarts

This book explores the intellectual and cultural flows between Asia and Europe which occurred during – and were formative of – the political and social changes of the first half of the twentieth century.

Promotor: P.J.J. Hooykaas, Co-Promotores: P.B.F. Ouwerkerk, M. Wang

Promotor: Prof.dr. M.K. Richardson, Co-Promotor: F. Witte

Biodiversity and trade: mitigating the impacts of non-food biomass global supply chains.

Located in the small Kingdom of Commagene at the upper Euphrates, the late Hellenistic monument of Nemrud Daǧ (c. 50 BC) has been undeservedly neglected by scholars

Anthropology of Law in Muslim Sudan analyses the hybridity of law systems and the plurality of legal practices in rural and urban contexts of contemporary Sudan, shedding light on the complex relation between Islam and society.

Do recent developments in the European security architecture signal the end of multilateral cooperation, or the beginning of a new era with emerging forms of international security collaboration?

This book explores the fascinating microvariation in Bantu languages and proposes a new syntactic analysis of subject and object agreement crosslinguistically. This book is open access!

This book explores intercultural management challenges in sub-Saharan Africa through a case study of Vasco Silva, a Portuguese businessman in Luanda, Angola.

Here we explain how to attend the workshop "How to Get a PhD Position" on May 7 2021.

Both the international perspective and the Dutch language and culture are deeply embedded in Leiden University’s identity.

What are the conditions under which coercive diplomacy can compel a State to abandon its nuclear weapons program?

In this thesis, we focus on novel proteins/mechanisms that regulate integrin-adhesion mediated mechano-transduction.

Within the FSW, we have put together a core team with contacts in the individual Institutes and at the Faculty level.

During the course of drug discovery translational steps are made.

In this article Vanessa Newby discusses how the ANZUS states of United States, Australia, and New Zealand that sit on the fringes of the Asia-Pacific, are increasingly using their armed forces to deliver Humanitarian Aid and Disaster Response (HADR) as a way of engaging with the region.

MPs in the Netherlands are first and foremost motivated by their direct environment, i.e. the parliamentary and partisan institutions.

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

Damien Van Puyvelde and Paul Oling explore how government intelligence agencies can effectively collaborate with the private technology sector to meet their evolving technological needs, focusing particularly on emerging technologies such as artificial intelligence (AI) and quantum computing.

This thesis investigates the evolution and fate of gaseous exoplanets, which are continuously shaped by stellar activity across both short and long timescales.

Mechanical metamaterials are carefully engineered materials whose properties are controlled by their structure, not by their composition, which allows using metamaterials to study and control physical effects in detail⁠.

In this paper, Kantorowicz aims to track the persistent effect of former partitioning borders on property tax rates in Poland.

Henk Versnel's work on ancient religion has been seminal. For his 80th birthday, a group of scholars assembled to celebrate and analyze his oeuvre.

The 2011 disasters precipitated widespread concern among heritage scholars about the fate of Tohoku’s cultural properties, tangible and intangible. Damage to not only buildings and landscapes but also ‘formless’ heritage, some worried, could weaken social infrastructure and thus slow or undermine re…

This book is the first systematic analysis of the changes in the use of goods and services by households of Black South Africans since the early nineteenth century.

TRIXY is a national Center of Expertise, in which clinical professionals and expert researchers work together to improve knowledge and clinical care for children with X and Y chromosome trisomies.

What are the phylogenetic relationships among the members of speciation bursts?

On 2 Juni 2021, Maarten Manse defended his thesis 'Promise, Pretence and Pragmatism: Governance and Taxation in Colonial Indonesia, 1870-1940'. The doctoral research was supervised by Prof. R. Arendsen.

This article investigates the efforts of influential Turkish Muslim civil society actors to amplify the voices of Muslim women in the Netherlands.

On 18 June 2019, Peter Kempees defended his thesis 'Hard power and the European Convention on Human Rights'. The doctoral research was supervised by Prof. R.A. Lawson and Prof. H. Duffy.

Do understudied animals contain hidden species?

This study investigates the perception and production of emotional prosody by native and non-native listeners and speakers, i.e. Chinese and Dutch listeners and speakers, including Dutch L2 learners of Chinese.

On 3 December 2019, Meda Couzens defended her thesis 'The application of the United Nations Convention on the Rights of the Child by national courts'. The doctoral research was supervised by Prof. T. Liefaard and Prof. J.J. Sloth-Nielsen.

Situated at the crossroads of the Indian and Pacific Oceans, the Spanish Philippines offer historians an intriguing middle ground of connected histories that raises fundamental new questions about conventional ethnic, regional and religious identities.

Find the answers to frequently asked questions about the Summer School here.

The Leiden Summer School in Languages and Linguistics offers a varied program of specialised courses in Descriptive linguistics, in Chinese, Germanic, Indo-European, Indian, Iranian, Semitic languages and linguistics, as well as a number of introductory linguistic courses. Registration opens around…

Lecture

How can the Safe and Sustainable by Design (SSbD) framework developed in the SSbD4CheM project facilitate the creation of safer and more sustainable chemicals and materials across various industries?

The research within the Food research programme at CML focuses on a transition towards sustainable food production and consumption systems. We investigate from a very small to a very large scale, at a local, national or international level. We do so by researching for example molecular tools, food systems,…

How might we include circularity into the models often used in IPCC reporting (in technical language, how can IAMs, dMFA models and CGE models be integrated?) What are possible futures for global resource use and what are the consequences for greenhouse gas emissions in these scenarios?

This research paper was requested by the European Parliament's Committee on Civil Liberties, Justice and Home Affairs. It was published by the International Centre for Counter-Terrorism (ICCT) in The Hague. Leiden University is one of the participating institutes in this publication and our researcher…

According to the amyloid cascade hypothesis, accumulation of beta-amyloid (Aβ) peptides initiates the pathological cascade in Alzheimer's disease (AD).

Introduction to Medieval Europe 300–1500 provides a comprehensive survey of this complex and varied formative period of European history, covering themes as diverse as barbarian migrations, the impact of Christianisation, the formation of nations and states, the emergence of an expansionist commercial…