The unit residue group, to which the present thesis is devoted, is defined using the norm-residue symbol, which Hilbert introduced into algebraic number theory in 1897.

An algorithm is discussed to compute the exponential representation of principal units in a finite extension field F of the p-adic rationals.

PhD Defence

Promotores: Prof.dr.G.R. de Snoo and Dr. R. Heijungs

What are the key issues in conducting LCA of bioenergy systems? What is the environmental sustainability status of second generation bioethanol? How much would the final results of biogenic carbon neutrality assumptions deviate from the true values based on a complete inventory? How to assess the impact…

Evolution acts via mutations in amino acid sequences. Substitution of essential amino acids leads to a nonfunctional protein. l.

Vinasse is a major by-product generated by the sugarcane biofuel industry. It is a source of microbes, nutrients and organic matter and often it is recycled as fertilizer.

The Microscopy Unit houses, maintains and coordinates most of the microscopy equipment of the IBL. The available equipment ranges from conventional light and fluorescence microscopes, to confocal laser scanning and electron microscopes. In addition, infrastructure is available for histology, including…

Promotor: P. Stevenhagen, Co-promotores: B. de Smit, F. Andreatta

The main aim of this project is to reveal and unravel the invisible histories of the UN, transcending the dominant Western perspective to recover the historical agency of Global South actors. The research will investigate how the UN has both facilitated and limited their role in shaping global order…

Madeleine Hosli, Professor of International Relations at Leiden University, together with two other authors, wrote a chapter in Group Politics in UN Multilateralism. This chapter assesses the composition and functioning of the African Union (AU) within the United Nations.

In this article, Kuipers and Timmermans analyze the first lady's relationship with policy problems in the period 1945-2013.

Conference

The Summer School ‘The European Union, the United Nations and Global Governance’ will focus on a range of topics relevant to interactions between the European Union (EU) and the United Nations (UN) and the EU’s role within current patterns of global governance.

This dissertation investigates Extended Lexical Units (ELUs), elements that are bigger than just one word and which are stored in the Lexicon.

This commentary on the United Nations Convention Against Corruption discusses each provision of the treaty, traces the provisions’ drafting history, and explores their implementation in domestic legal systems.

Where did the new generation of antislavery activists get their inspiration to organize in large-scale pressure groups?

Promotor: Prof.dr. H.W. Lenstra

Organisations such as the EU are of enormous benefit to the member states, but the inhabitants of the member states are often unaware of this. Leiden researchers investigate whether international organisations such as the EU or ASEAN are able to influence global politics.

What legislative and regulatory questions arise when children, adolescents or elderly people use the Internet?

Bachelor, Master

Bachelor, Master, PhD

This new article by Monica Kaminska is part of a special issue for Journal of Cybersecurity, based on a selection of contributions from THe Hague Program for Cyber Norms' 2019 Conference.

Strategic direction of the GTGC initiative lies with a Steering Group, composed of seven members from four Leiden University faculties. Chaired by Leiden's Professor of Global Transformations and Governance Challenges, the Steering Group addresses questions such as overall vision, staffing, communications,…

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Does foreign aid promote human rights?

Just published: United in incoherence – Private law concepts under pressure from European financial law (in Dutch), in: Tijdschift voor privaatrecht 2017-4

Didactics

Prof.dr. Annelou van Gijn has obtained a Marie Curie subsidy for research on wetland activity patterns in Mesolithic Northwest Europe. This funding has been used to employ the researcher dr. Aimée Little. The project will commence in November 2011.

Healthy University Leiden consists of a taskforce, focus group and seminars.

Several so-called Special Interest Groups are linked to DSRP. These groups focus on specialized topics and organize their own group meetings, talks etc. Contact the group leader if you are interested to join. It is possible to be a member of multiple groups.

Commercial enterprises who want to make use of the expertise and facilities are referred to LAB , the commercial unit responsible for specialized laboratory work.

The Faculty of Humanities has two advisory groups for Diversty & Inclusion: one for staff members and one for students.

The main object of study in this thesis is an Arakelov inequalitywhich bounds the degree of an invertible subsheaf of the direct image ofthe pluricanonical relative sheaf of a semistable family of curves.

This monograph, written by dr. Dennie Oude Nijhuis and published by Cambridge University Press, discusses the postwar development of the welfare state.

Promotores: H.W. Lenstra, A. Lucchini

Weekly Friday morning BPOC/SSNMR group meetings.

The China Region Group develops and monitors Leiden University's cooperation with China. It is chaired by the Dean of The Law Faculty, Prof Joanne van der Leun, and consists of representatives of Leiden University's faculties and various policy departments.

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.

The purpose of eLaw's Working Groups is to stimulate a productive working environment for cooperation within the Center for Law and Digital Technologies at Leiden University.

The lipid matrix of the skin's stratum corneum plays a key role in the barrier function, which protects the body from desiccation. The lipids that make up this matrix consist of ceramides, cholesterol, and free fatty acids, and can form two coexisting crystalline lamellar phases: the long periodicity…

Every LACDR PhD candidate has access to the SharePoint teamsite of the LACDR PhD group. This site is specially and only for PhD candidates of the LACDR. We strive to collect here all relevant PhD information and to stimulate the collaboration and communication in the LACDR PhD community.

The LOFAR e-infrastructure group is responsible for deploying and maintaining LOFAR processing on distributed e-infrastructure. A co-operation between SURFsara, Leiden University and ASTRON, the group develops software to integrate the LOFAR stack with processing pipelines. Our software can schedule…

The Computer Support group provides dedicated support for the computing infrastructure of Leiden Observatory

On 20 October 2021 Michael Ramsden defended the thesis 'The Role of the United Nations General Assembly in Advancing Accountability for Atrocity Crimes: Legal Powers and Effects'. The doctoral research was supervised by Prof. N.M. Blokker.

Arts and leisure, Arts and leisure

On 18 September 2019, Huw Llewellyn defended his thesis 'An Institutional Perspective on the United Nations Criminal Tribunals: Governance, Independence and Impartiality'. The doctoral research was supervised by Prof. N.M. Blokker and Prof. L.J. van den Herik.

How did people experience Islam on a day-to-day basis in the early centuries of Islam? That's where the papyri come in, says professor of Arabic Petra Sijpesteijn in the fourth video of the Leiden | Islam interview series.