On 29 September 2020, Tom van Ham defended his thesis 'Collective violence offenders and offending. The role of individual characteristics'. The doctoral research was supervised by Prof. A.A.J. Blokland, Prof. O.M.J. Adang (RUG) and Prof. Th.A.H. Doreleijers (VUMC).

In this project, we use social network analysis to analyze the behavior of users in online forums and associated marketplaces over time.

Many of the journal's issues contain short contributions from practitioners of diplomacy. These practitioners' essays offer unique insights into the world of diplomacy and they serve as a source of inspiration for researchers.

Isis on the Nile. Egyptian gods in Hellenistic and Roman Egypt

For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disc surrounding a young star. The discovery reaffirms that the conditions that spawned the Earth and Sun are not unique in the Universe. The results are published…

Research using the ALMA telescope by scientists including Leiden's John Tobin and Steven Bos has produced the first images of the water snow line within a protoplanetary disc. Publication in Nature on 14 July.

In the discs of dust and gasses around young stars, mysterious structures occur. Together with professor Ewine van Dishoeck, PhD student Paolo Cazzoletti investigate how we can explain these forms, such as rings, spirals and holes. On 12 December, he will defend his thesis.

From the effects of hormone fluctuations in women via the interior structure of giant planets to the prehistory of the languages: six Leiden researchers have been awarded a Consolidator Grant by the European Research Council.

Information about the association and the board.

This longitudinal study is focused on neurodevelopmental problems in young children with XXY, XXX and XYY, aged 1 to 6 years.

Leiden University is building on its future in Leiden. As a means to achieving this aim, the University will be investing in excess of 100 million euros over the coming years in constructing the new accommodation for the Faculty of Humanities at Witte Singel and Doelensteeg. The University aims with…

Leiden scientists will be working on the development of a camera for the European Extremely Large Telescope that is currently under construction. On 28 September the Netherlands Research School for Astronomy signed an agreement with the European Southern Observatory.

This thesis comprises four closely related interpretative studies and set out to answer the compound question: ‘How do teachers interpret their classroom interactions in terms of their pupils’ best interest?’

This thesis utilises the exceptional sensitivity and resolution of LOFAR to explore the low-frequency Universe, while simultaneously advancing the telescope's capabilities to enable new scientific discovery.

Global Environmental Extensions Multi-Regional Input-Output (EE-MRIO) analysis is often used to analyze how changes in global and national demand for products lead to socioeconomic and environmental impacts at the national level.

Developing robust and comprehensive analytical methods to size and quantify subvisible particles in biopharmaceutical products.

An examination of rationales and core practices of first-grade Worldview/Religious Education teachers focused on their students' philosophical identity development

The excavation of three Bronze Age barrows and surrounding landscape at Apeldoorn-Wieselseweg

Overall dispersion in LCA as result of inherent uncertainties, spread and unrepresentativeness.

Piecing together the urnfield mortuary process in the Lower-Rhine-Basin, ca. 1300 - 400 BC

The Greek and Roman History Team concentrates on the study of the economies, societies and cultures of the large empires of the Graeco-Roman world, starting with the empires of Alexander the Great and his successors.

Res Publica is a Dutch language journal for political science, public administration, European and international politics, political sociology, and communication science.

Public sector decision-makers operate amidst an abundance of information and unclear political objectives. Attention is the sine qua non of policy-making: What is attended to can be addressed in policy responses; what is overlooked or goes unnoticed cannot. Despite its importance, public administration…

The central research question in this study was twofold: 1. To what extent are the three reconstruction models useful in a reconstruction of the public decision-making process concerning decentralized government between 1947 and 2014? 2. To what extent does the reconstruction of this public decision-making…

Acta Politica is the official journal of the Dutch Political Science Association.

A difficulty of studies on chemical kinetics are the reaction time scales and detection of their intermediates.

The Faculty of Archaeology at Leiden University offers education in Human Osteoarchaeology. We offer courses in our one-year Master’s track in Archaeological Science, resulting in a Master of Science degree after completion.

Indo-European is the name of the language family to which English belongs, along with many sub-families such as Germanic languages and Romance languages. In this course, you will delve into the structure and origins of these branches, the oldest languages belonging to the language family, linguistic…

Galaxy intrinsic alignments induce a major astrophysical contamination to weak gravitational lensing measurements and need to be modelled and mitigated when extracting cosmological information from such measurements.

Leids onderzoek naar bestraffing komt tot stand uit verschillende disciplines. Het onderzoeksproject kent een juridische, criminologische, sociaalwetenschappelijke en filosofische invalshoek.

How do lecturer-researchers at Dutch Universities of Applied Sciences perceive their academic identity after expanding their teaching-only work portfolios to include researcher roles, and how do they navigate attached identity-based role transitions, while balancing personal goals, institutional expectations,…

SuperCode: Sustainability PER AI-driven CO-DEsign

The SPS Monitor measures your sensory stimulus sensitivity. Sensory stimulus sensitivity refers to one's sensitivity to subtle environmental stimuli, the depth and intensity with which these stimuli are processed and the impact this has on one's functioning.

The Heritage Quest project is a citizen science project in which volunteers participate in archaeological research. Discover the aims and methodology of the project, the sub-projects and how to participate yourself.

The centralized LUMC biobank department helps to implement rules and regulations regarding informed consent, collection, storage and distribution of biomaterials and data for biobanking.

Ecotox is a stimulating top-facility that provides an integrative research environment around the topic of ecotoxicological testing and experimental research. Research focus: Dose-response modelling Mode-of-actions and mechanism-of-actions Test method development, in view of targets in AOPs (adverse…

D. Fontijn, Quentin Bourgeois & Arjan Louwen (eds) (2012). This publication describes the history of “barrow landscape” near Echoput in Apeldoorn. Two burial mounds were examined and it became clear that our prehistoric predecessors carefully managed and maintained the open area for a long time, before…

Sea-ing Africa explores how infrastructure in Ghana and Morocco shapes development, blending geopolitics, economics, and culture, impacting local and societal dynamics.

In an age before GoogleDocs and LinkedIn, 19th-century scholars relied on letter-writing for collaboration, peer-feedback and the building and sustaining of academic networks. Letters were a quick, efficient way to share insights, data and discoveries. Scholarly correspondence thus allows a vital behind-the-scenes…

Sub-Saharan Africa has seen a significant rise in terrorist acts and radicalized youth since the appearance of Boko Haram in 2009 and the fall of Libya in 2012. This book investigates the deeper layers of radicalization in Sub-Saharan Africa, which is situated in a larger global tendency.

Her specialist field is molecular astrophysics, and she is the most quoted scholar in her field. In this, the year of astronomy, she is the ideal person to give the Dies lecture at the university with the world's oldest astronomy institute; it goes without saying that the lecture will be on the newest…

Gold nanoparticles show surprisingly strong interactions with light in the visible range, which can be divided into scattering, absorption, and photoluminescence.

Promotores: P. Stevenhagen, L. van Geemen Co-promotor: R.M. van Luijk

The Heritage Quest project is a citizen science project in which volunteers participate in archaeological research.