We aim to unravel the complex and intertwining regulatory systems that control development and antibiotic production in streptomycetes.

Leiden experts research ways in which European legislation is converted into national legislation. Knowing how this process works can inspire policy-makers trying to achieve their aims while abiding to Europan legislation.

Knowledge security is essential to safeguard our intellectual assets, maintain trust with partners, and comply with legal and ethical standards.

After an initial suggestion of a move toward Israel, India’s Prime Minister Modi has signaled a significant recalibration of his government’s engagement with the Middle East region. Now, India seems to be prioritising strong ties with the Gulf states.

This project aims to situate the current policy concept of ‘valorization of scientific knowledge’ in historical and epistemological perspectives. Conceptual understanding of the utility of scientific practices is developed in dialogue with historical analyses of the politics of knowledge in European…

As part of the Paris Agreement, countries across the world agreed to support developing countries to invest in climate mitigation and adaptation through a Green Climate Fund. However, developed countries have failed to meet funding commitments for the Green Climate Fund–the flagship program financing…

Has there been continuity or change in US counterterrorism policy since 9/11? What factors led to the continuity or change, and how do we classify any such continuity or change?

Curious about how sustainability fits into our university's strategic plan, or how much energy and water we consume? Read about it here.

This thesis develops statistical methods for the analysis of high dimensional data: high dimensional networks reconstruction (Chapters 1-4), incorporation of prior information in networks reconstruction (Chapters 2-4), incorporation of prior knowledge in genetic association studies (Chapter 3).

Workshop

On 29 and 30 June, Ingrid Leijten participated in an international workshop held at the International Institute for the Sociology of Law (IISJ) in Oñati, Spain.

Researchers of the Leiden Leadership Centre are active members of the PUPOL network. PUPOL is an international academic network for public and political leadership which fosters exchange of ideas and inspires collaborative research among scholars focusing on the role of leadership in the public and…

We study the structure, dynamics and physics of complex networks emerging from the intricate interconnectedness of the constituents of large systems.

A research data infrastructure in computational social science

Promotor: H.J. van den Herik, B.R. Katzy, Co-promotor: K. Sailer

On behalf of the interdisciplinary programme Social Resilience & Security, we would like to remind you of the call for proposals for seed funding (up to €4.000) to boost interdisciplinary research.

2 joint initiatives began in 2019 which attempt to connect the various efforts around active learning at Leiden University: the active learning network, and the Saltswat project.

This project develops methods for ensuring the anonymity of individuals in social network data.

Konstantinos Zoumpoulakis, Research Assistant at the Institute of Criminal Law & Criminology, has written a report on this conference

Dementia is a progressive disease, diagnosed at a relatively late stage when intervention may not be effective. Aim of the research is to study scans of brain networks to help discover the early network changes related to dementia. Early diagnosis may benefit effectiveness of future treatment.

Thanks to data science, we can chart and search enormous quantities of related information. This generates all kinds of new insights, for example in complex global financial structures or such societal problems as loneliness.

Promotor: E.F.A. Deprettere, Co-Promotor: A.C.J. Kienhuis

Who tried to influence the mission and position of the Dutch security services between 1912 and 1992, what effect did that have on the form and contents of the security services? How to account for transformations of the security services?

This thesis explores Breaking of Ensemble Equivalence (BEE) in random graph models by examining the spectral properties of adjacency matrices. The goal is to identify spectral characteristics that differentiate random graph ensembles, enhancing the understanding of complex network structures and beh…

Gendered dynamics and assumptions are prevalent throughout the field of cybersecurity.

Great apes and the right to health

The amended Intelligence and Security Services Act (WiV) enacts a fundamental change in the relationship between the security services and politics. This carries the risk of politicisation of information, according to Professor Paul Abels. Inaugural lecture on 16 February.

This thesis describes the design, characterization and application of dextran based crosslinked network.

EUMOTIONS explores the role of emotions expressed by political elites (at EU- and member state-level) in framing the EU’s policy options during international crises.

A story of Two Mosuls, The Resurrection of the Iraqi Armed Forces and the military defeat of ISIS. In this article, published in the Journal of Strategic Studies, the authors Maarten Broekhof, Martijn Kitzen and Frans Osinga discuss the military adaptation by the Iraqi armed forces and their role in…

To answer questions that look beyond individual entities, network science studies the interactions taking place in complex systems. These complex systems can often have temporal information on when an interaction occurs.

A Diachronic Perspective on the Aegean

YAL raises its voice on policy matters.

Promotor: F. Arbab, R. De Nicola, Co-Promotor: M. Tribastone

Whilst government’s ability to design ‘context-specific’ regional innovation policy is generally assumed to depend on the region’s decision-making power, the aim of this study is to investigate how regional government matters. In order to open up the black box of policy design, the study develops a…

This project is part of a broader research agenda aiming to better understand the relationships between the development of contemporary security concerns and the evolution of forms of security cooperation and crisis governance.

Think tanks have proliferated in most Western democracies over the past three decades and are often considered to be increasingly important actors in public policy. Still, their precise contribution to public policy remains contested.

SDN (Software-Defined Networking) represents a revolutionary approach to network architecture that enables the dynamic and flexible management of network resources through software-based control. This dissertation introduces the idea of SDN and its southbound protocol OpenFlow, then presents the formal…

Arnold van der Valk on Food Council MRA.

How is Indian foreign policy made? This special issue of the journal India Review, edited by political scientists Nicolas Blarel (Leiden University) and Avinash Paliwal (SOAS University of London) features a number of interesting case studies that bridge the gap between Foreign Policy Analysis and India’s…