Insect egg development in a warming world: the eco-evo-devo of embryonic developmental time: What is the genetic basis of developmental time?

Humans can see the world through the eyes of other humans and imagine what they know, want, and intend. This competence is known as Theory of Mind.

Promotor: R. Gill, Co-promotor: P. Massart

The World of the Fullo takes a detailed look at the fullers, craftsmen who dealt with high-quality garments, of Roman Italy. Analyzing the social and economic worlds in which the fullers lived and worked, it tells the story of their economic circumstances, the way they organized their workshops, the…

On Tuesday 10 September 2024 May Shaddel Basir successfully defended a doctoral thesis and graduated.

In the History of the Roman Emperors, what does Herodian’s method of composition consist of and how does it relate to his writing intention, particularly in terms of political and moral idea(l)s?

A portrait of the complex historical process of over 500 years of European colonialism in the New World.

This book examines the critical role of information and knowledge in early modern Europe's global pursuits, exploring challenges in trusting distant information, the development of doubt in intercultural encounters, and the impact of misinformation.

Are there general principles or values that should govern our actions as moral agents and/or as political subjects?

NTER-SECTION is a peer-reviewed, open-access journal focusing on contributions from junior archaeological researchers at Leiden University. The journal offers an accessible platform for the publication of individual research by undergraduate and graduate students. The Editorial Board consists of PhD…

Imagining the Americas in Print contains eleven essays, seven of which have been published before and four of which are new.

On the new website Athena’s Angels, four female Leiden professors address the unequal treatment of women in academia. ‘Since we launched the website, our mailboxes have exploded,’ says Judi Mesman, Professor of Child and Family Studies and one of the initiators.

This book published by Oxford University Press discusses religion and trade in world history.

Bacteria caught red-handed, deeply frozen just as they were about to cause Lyme’s disease. Ariane Briegel is wildly enthusiastic about the wonders she observes thanks to three elements: a freezing technique, a camera-equipped microscope, and AI. ‘It’s fascinating. Every single cell is different.’

During the period 500–1000 CE Egypt was successively part of the Byzantine, Persian and Islamic empires. All kinds of events, developments and processes occurred that would greatly affect its history and that of the eastern Mediterranean in general. This is the first volume to map Egypt's position in…

The historiography of the Bretton Woods conference of July 1944 is dominated by the personal clash between the principal negotiators, Harry Dexter White of the United States and John Maynard Keynes of Britain.

Sheltering is an immediate human need and determines well-being andhealth.

Who had a say in making decisions about the natural world, when, how and to what end? How were rights to natural resources established? How did communities handle environmental crises? And how did dealing with the environment have an impact on the power relations in communities?

How do young adults find their way in an increasingly complex society? In Leiden, as part of the GUTS project, we study how brain development and self-regulation play a role in this process.

This project aims to excavate and date the setting of the east gate of the Roman fortress of Udhruḥ. This will be compared with other Diocletianic military installations from the region. We also hope to retrieve another gate inscription which can shed light on the function and political embedding of…

While phenomenology and Yogacara Buddhism are both known for their investigations of consciousness, there exists a core tension between them: phenomenology affirms the existence of essence, whereas Yogacara Buddhism argues that everything is empty of essence (svabhava). How is constructive cultural…

On the occasion of the 80th anniversary of the magna carta of civil aviation, the Convention on International Civil Aviation (Chicago Convention 1944), Professor Steven Truxal has written a leading piece for the European Civil Aviation Conference: The Chicago system: a steadfast legal blueprint for…

Carl Li defended his thesis on 30 June 2015

This PhD project investigates how automatic sign language recognition technology can be further developed to analyse static images and textual descriptions of signs.

How do you recount historic events if you are not allowed to talk about them? For his dissertation, Taufiq Hanafi tried to find out how a period of mass murder – despite heavy censorship – found a place in Indonesian literature. PhD defence 31 March.

In early modern Europe, as today, men and women with expertise in languages were indispensable to the functioning of societies and economies. The LangPro project will shed new light on these early modern language professionals and on the field that employed them: the language sector.

Dr. Gruni published an article on the impact on sustainable development in the EU Common Commercial Policy of recent Opinion 2/15 CJEU on the Global Trade and Customs Journal.

This project investigates how early print media covered distant but urgent geopolitical conflicts, using newspapers from the Low Countries, north and south.

Statistical distributions in LCA and converting between different representations of these distributions.

On Friday 16 May Juul Eijk successfully defended a doctoral thesis and graduated.

When a physical system possesses symmetries, these are often accompanied by a representation of the symmetry group on a Hilbert space. Group representations on Hilbert spaces have been extensively studied.

On 15 April 1942, members of the Dutch military police on Curaçao shot and killed fifteen Chinese Shell workers. Assistant Professor Vincent Chang has been awarded an NWO XS grant to investigate how this happened and why these Chinese seamen are now being commemorated again after decades of being fo…

Today’s socio-economic challenges aren’t new. In the centuries after the retreat of the Roman state people with different backgrounds and with different ways of life somehow managed to build and maintain a complex economic system in northern Gaul that would produce the ruling dynasties of Europe. By…

The Persian Empire (539-330 BCE) was the first world empire in history. At its height, it united a territory stretching from present-day India to Libya - and it would take 2,000 years before significantly larger empires emerged in early modern Eurasia. This territorial sweep is both a source of fascination…

The project explores the impact of the clash between defenders of a rules-based order and international law on global governance and the future of legal systems.

As a twelve-year-old girl, Nicky van de Beek became intrigued by the tomb chapels in Saqqara, Egypt. Now she is doing her PhD on them, just like another Leiden Egyptologist decades earlier. Herta Mohr persevered with her research during World War II. Now she is the namesake of the first Leiden building…

On May 20 from 14:00-15:30 (CET) The Hague Journal of Diplomacy and the LeidenAsiaCentre (LAC) organise a panel discussion on China’s diplomacy, on the occasion of the launch of a special issue of the Journal on China’s Global Diplomacy, edited by Qingmin Zhang, Paul Sharp and Jan Melissen.

Is the legitimacy of law and governance of multilevel jurisdictions diminishing? What is the significance of (diminishing) legitimacy for the effectiveness of law? These kinds of questions about the legitimacy of the supranational formation of law, its application, and the policy and governance based…

The United Nations’ fourth Sustainable Development Goal (SDG) aims to “ensure inclusive and equitable quality education and promote lifelong learning opportunities for all”. The Centre for Innovation at Leiden University feels the responsibility to tackle this need. Our mission is to drive innovation…

This collection of essays explores processes of innovation in Greco-Roman technology and science.

What was the stringed instrument known in medieval and early Renaissance Italy as “cetra”?