Systems with local constraints is a new finding in recent researches on complex systems. The heterogeneous spatial interactions and the temporal dependencies among those numerous units make it difficult to describe by traditional statistical physics.

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.

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

The Darién region of Panama is the only land bridge connecting North, Central and South America. Nowadays home to descendants of African enslaved peoples, Indigenous peoples (Emberá, Wounaan, and Guna), and mestizos, Darién has been and still is fundamental to connectivity, cultural interchange, and…

New or improved treatments for chronic and acute illness.

In the Schouwburgstraat, LUGO is currently redesigning the back-garden in order to increase biodiversity and make it a more beautiful space. Throughout October 2023 until March 2024, we will be making changes to the garden with our team of volunteers.

Learning from small data sets in machine learning is a crucial challenge, especially when dealing with data imbalances and anomaly detection. This thesis delves into the challenges and methodologies of learning from small datasets in machine learning, with a particular focus on addressing data imbalances…

The upscaling of Life Cycle Assessment (LCA) data is recognized as one of the main challenges in the ex-ante LCA of emerging technologies. This challenge arises since industrial-scale system specifications for these technologies are unknown and industrial data is lacking.

Glucocorticoids (GCs) are widely prescribed as anti-inflammatory drugs due to their well-established immunosuppressive effects.

In this article, Kohei Suzuki examines how bureaucratic politicization and closedness are associated with the turnover intentions of bureaucrats in 36 countries.

On 21 September 2022 Arfiansyah successfully defended a doctoral thesis and graduated.

The Khoesan were the first people in Africa to undergo the full rigours of European colonisation. By the early nineteenth century, they had largely been brought under colonial rule, dispossessed of their land and stock, and forced to work as labourers for farmers of European descent.

In this policy brief, Dennis Broeders, Els De Busser and Patryk Pawlak discuss attribution of in cyberspace from three different perspectives: criminal law, international law and policy. Published together with EU Cyber Direct.

Promotores: W. Jiskoot, F. Ossendorp

Promotor: P. J. J. Hooykaas Co-promotor: B. S de Pater

A defining fixture of our contemporary world, video games offer a rich spectrum of engagements with the past.

Promotors: Prof.dr. P.J. Punt, Prof.dr. C.A.M.J.J. van den Hondel

In higher education, Open Educational Resources (OER) are available for anyone to use, but they are not widely used.

PathOS aims to contribute to a better understanding and measurement of Open Science impacts and their causal mechanisms. This is pivotal in order to develop effective OS policy in the EU (European Union). It will do so by collecting concrete evidence of OS effects, by studying the pathways of OS practices,…

Restructuring and insolvency laws play a pivotal role in addressing the often conflicting interests of stakeholders of financially distressed companies. Whereas financial distress is an inherent risk of entrepreneurship in market-based economies, legal tools serve an important role to ensure an orderly…

The growing popularity of corporate self-regulation to address supply-chain issues puts Corporate Social Responsibility and specifically codes of conduct, at the centre of attention. In this article, Jaroslaw Kantorowicz, Sarah Vandenbroucke and Yvonne Erkens analyse supplier codes of conduct of multinational…

In this article, Jeanine de Roy van Zuijdewijn and Edwin Bakker provide a big picture reflection on two decades after 9/11 in Western Europe.

The urban graveyard presents several studies in which the results of older archaeological and osteoarchaeological research are compared to more recent excavation data from several Dutch, Belgian and Danish cities and towns.

Detecting planets during their formation stages is crucial for understanding the history and diversity of fully developed planetary systems like our own. However, observing young planets directly is challenging because they are often deeply embedded within their host protoplanetary discs, rich in gas…

The research described in this thesis focused on identifying novel drug targets and synergistic combinations for triple-negative breast cancer (TNBC), a virulent subtype of breast cancer with a dismal prognosis and limited therapeutic options.

New drugs for use as tuberculosis (TB) treatment are needed due to the constrains of classical antibiotics against TB and the rise of antibiotic-resistant strains, making TB a harder and harder disease to treat.

Engineered nanomaterials (ENMs) are widely used, and nanotechnological innovations grow with rapid pace. Studies on nanotoxicology have demonstrated that chemical toxicology as well as particle toxicology should be accounted for in predicting the safety of ENMs.

For three millennia, carved sculptures were ubiquitous among ancient peoples in the Americas. Sculpted in stone, metal or wood, they developed into the well-known totem poles, colossal Olmec heads, royal Maya stelae and golden Inca statues.

The article investigates the origins of Indo-European languages in Asia by 65 coupling ancient genomics to archaeology and linguistics.

On 8 July 2020, Andres Sarmiento Lamus defended his thesis 'The Proliferation of Dissenting Opinions in International Law'. The doctoral research was supervised by Prof. L.J. van den Herik and Prof. Y.A.A.S. Radi (UCLouvain).

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.

Increasingly, primary sources from the period before the emergence of digital media are being digitized. These “digital surrogates” have facilitated the work of (historical) researchers; instead of having to visit several archives, libraries and other places, the (primary) sources appear in front of…

In this article, Thomas Maguire, assistant professor at the Institute of Governance and Global Affairs, examines the intelligence of the US, British and Ukrainian governments and NATO partners concerning Russia and its war against Ukraine. This article discusses how and why governments communicate intelligence…

Having open conversations about diversity and inclusion is an important first step towards change. Yet, such conversation can be emotional and vulnerable, and at times uncomfortable to initiate and sustain. The 'What’s Your Story?' Card Game aims to enable participants to exchange and respond to stories…

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?

Is the current existing legal framework on compulsory and voluntary care - for vulnerable young adults (between the ages of 18 to 23) - in need of revision? And if so, what kind of amendments would be advisable?

With the rise of information and communication technologies, large amounts of data are being generated and stored in databases. In order to get a better grip on these large amounts of data, serious efforts are being made to discover patterns and relations in the data with the help of new techniques.…

YAL stimulates interdisciplinary collaboration.

People with a mild intellectual disability (MID) experience more loneliness than people without MID. In the COLLELO project, researchers from social and humanities disciplines collaborate with people with MID and their (in)formal networks to create an (online) learning community that aims to understand…

Understanding others’ emotional behavior is essential for navigating daily social life. But how is such an understanding achieved? The eye-tracking study by Yung-Ting Tsou and colleagues shows that children with hearing loss adopt a unique visual strategy that makes uses of explicit visual information…

The unique geographic and temporal breadth of research at Leiden allows us to stimulate a shift from the classical Weberian mode of scholarly production that views historical development and modernization as emanating from Europe and the West to a multi-polar perspective that allows for more nuanced,…

On 16 December 2019, Jan-Harm de Villiers defended his thesis 'The Anthropomorphic Hegemony of Subjectivity: Critical Reflections on Law and the Question of the Animal'. The doctoral research was supervised by Prof. P. Cliteur.

Creation of a framework for environmental parameter estimation that benefits from the consistency of physics-based theory-driven models and the accuracy of the machine-learning-based data-driven models

In September 2023, we will be transforming a under-utilised outdoor space into a greener and more biodiverse garden in which all students and staff of the Schouwburgstraat can relax and enjoy.

If you’re looking for an additional challenge besides your master’s programme because you’re keen to look beyond the limits of Health, Ageing and Society, then the International Leiden Leadership Programme (ILLP) might be exactly what you need.

The Duke-Leiden Institute in Global and Transnational Law is a one-month programme providing a strong foundation for those interested in international and comparative law as well as for those planning to study law in the United States. The programme will focus on subjects such as trade agreements, human…

Many students want to find themselves a job during their studies, to help cover their expenses for example, or they might want to stay and work in the Netherlands after graduating. While there are certainly possibilities in both these areas, you’ll need to bear in mind that there are also restrictio…

The Public Administration specialisation in Economics, Governance and Management combines public administration with economics to analyse issues such as the climate or housing crisis. You will learn to think economically and formulate policy advice.

In the Public Administration specialisation in Policy, Governance and Organisation, you will analyse current issues such as the housing crisis, energy transition, and immigration. You will learn how policy is developed and how public organisations function from various perspectives.