'Intergroup helping’ geeft een mooi overzicht van de huidige kennis van hulpverlening tussen groepen, zoals landen of organisaties, of noodhulp. De Leidse sociaal en organisatiepsycholoog Esther van Leeuwen is mede-editor van het boek, samen met Hanna Zagefka, sociaal psycholoog aan de University of…

Promotor: Prof.dr. H.W. Lenstra

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.

In this thesis we classify the pairs (p,G), where p is a prime number and G is a finite p-group possessing an intense automorphism, i.e. an automorphism that sends each subgroup of G to a G-conjugate, that is non-trivial and whose order is coprime to p.

The extensive use of electronic communication channels and other devices has opened new possibilities for collecting data on human behavior. This information is sometimes openly accessible, but largely part of administrative registration systems that are not open to the broader public. The data provides…

De master International Relations van de Faculteit Geesteswetenschappen van de Universiteit Leiden biedt een volledig inzicht in de complexe factoren die kenmerkend zijn voor de moderne wereld. De opleiding legt een voortreffelijke basis voor een carrière in de internationale arena.

Promotor: Prof.dr. P. Stevenhagen

Promotores: H.W. Lenstra, A. Lucchini

Dit tweejarige Advanced MSc IRD-programma biedt je een unieke combinatie van academisch onderwijs in internationale betrekkingen en politieke wetenschappen, met praktisch onderwijs en training in internationale onderhandelingsvaardigheden en diplomatie.

In de bachelorspecialisatie International Relations and Organisations ligt de nadruk op internationale onderwerpen. Het programma is geheel Engelstalig en wordt verzorgd in Den Haag.

Industrial manufacturing processes, such as the production of steel or the stamping of car body parts, are complex semi-batch processes with many process steps, machine parameters and quality indicators.

In my research, we developed a method to distinguish knots. A knot is a mathematical depiction of the everyday knot that occurs in ropes and cords.

Promotor: S.M. Verduyn Lunel, Co-promotores: M.F.E. de Jeu, B. de Pagter

Dit project bestudeert sociale afstand - de mate van begrip tussen mensen - in relatie tot het buitenlands beleid van staten. Geeft sociale afstand vorm aan politieke vooroordelen, hulpverhalen en, uiteindelijk, de prioriteiten en beslissingen van het buitenlands beleid van een staat?

The main topic of this PhD thesis is the Arakelov ray class group of a number field, an algebraic object that contains both the ideal class group structure and the unit group structure.

This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.

Gibbs measures, as used in Statistical Mechanics, have a definition that is remarkably similar to the definition ofg-measures, used in dynamical systems.

Promotores: W. Th. F. den Hollander, M.O. Heydenreich

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

Promotor: Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Univ. de Bordeaux)

The research described in this thesis focused on the use of bioorthogonal antigens to investigate immunological processes in antigen presenting cells. Bioorthogonal antigens are antigenic proteins produced through recombinant expression in a methionine auxotrophic E. coli strain.

The thesis focuses on synthesis strategies in oligosaccharide campaigns, and the influence of protecting groups.

Op donderdag 11 januari 2018 verdedigde Xiang Li haar proefschrift: 'Collective Labour Rights and Collective Labour Relations of China'. Haar promotoren zijn Guus Heerma van Voss en Barend Barentsen.

The key purpose of this project is to study tautological relations on the level of closed differential forms or even integral cochains (i.e. we don't take classes in cohomology).

Promotor: Prof.dr. W.T.F. den Hollander

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How the global distribution of vegetation stands dominated by arbuscular and ectomycorrhizal plants relate to principle aspects of belowground carbon accumulation processes?

Consequences for sediment stability and seston trapping

Most of current public-key cryptography is considered insecure against attacks from sufficiently powerful quantum computers. Post-quantum cryptography studies methods to secure information resistant against such attacks. One proposal is isogeny-based cryptography, which bases its security on computational…

In dit proefschrift wordt verslag gedaan van vier studies waarin het samenwerken tussen docenten in opleiding (dio’s) onderzocht is. Samenwerking in de lerarenopleiding is belangrijk, omdat dit het leerproces van de dio’s tijdens de lerarenopleiding kan stimuleren en omdat ze zo voorbereid kunnen worden…

Kunst en vrije tijd, Kunst en vrije tijd

This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…

Real-life processes are characterized by dynamics involving time. Examples are walking, sleeping, disease progress in medical treatment, and events in a workflow.

Building a Deep Cross-media Transfer Network to extract visual relations that relieve the problem of insufficient training data for visual tasks.

Enforcement of group cooperation fails because of discriminatory punishment, according to research by Welmer Molenmaker and colleagues. When group members have different backgrounds, punishment turns into a double-edged sword: no longer used just to prevent group exploitation, but also to break the…

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

Promotor: S.M. Verduyn Lunel, Co-Promotores: S.C.Hille, O.W. van Gaans

Promotor: Prof.dr.ir. E. Deprettere

The main theme of this thesis is the theoretical study of Gaussian processes as a tool in Bayesian nonparametric statistics.

Op 1 april 2020 verdedigde Ivan Romashchenko zijn proefschrift 'Related Party Transactions and Corporate Groups: When Eastern Europe Meets the West'. Het promotieonderzoek is begeleid door promotoren prof.mr. S.M. Bartman en prof. A. Radwan (Kaunas, Litouwen).

This thesis concerns the relation bettween the good reduction of Shimura varieties and the associated loop groups.

Phospholipase A/acyltransferase 3 (PLAAT3) and PLAAT4 are enzymes involved in the synthesis of bioactive lipids. Despite sequential and structural similarities, the two enzymes differ in activity and specificity.

Op 19 september 2019 verdedigde Lynette Janssen zijn proefschrift 'EU Bank Resolution Framework: A comparative study on the relation with national private law'. Het promotieonderzoek is begeleid door promotoren prof.mr. W.A.K. Rank en prof.mr. M. Haentjens.

In order to be able to develop effective medicine and treatments to prevent or cure autoimmune diseases or cancer we need to understand the mechanisms how they arise and what drives their course.Unravelling the fundamental molecular mechanisms influencing the onset and course of diseases such as allergies,…

What is the population size/structure and distribution of tiger and leopard inside the Bardia National Park (BNP) compared with the population outside? What is the movement and home range and conflict pattern in time and space of tigers and leopards inside the BNP compared with outside? What constitutes…

Article by Leiden University political scientist Daniel Thomas about shifting norms for membership in international organisations.