269 zoekresultaten voor “given” in de Publieke website
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Giving to friends, classmates, and strangers in adolescence
Een onderzoek naar de ontwikkeling van prosociaal gedrag.
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Giftige kleuren vergroten seksuele kansen
Waarschuwingskleuren zorgen ervoor dat roofdieren onthouden dat bepaalde prooien giftig zijn. Maar nu blijkt dat de kleuren van Panamese gifkikkers ook door kieskeurige vrouwtjes worden beïnvloed: partnerkeuze kan ook bij deze dieren tot kleurverandering leiden, schrijft Leids promovendus Martine Maan…
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Geheimzinnige wolk op Titan blijkt giftig blauwzuurijs
Hoog boven de zuidpool van de Saturnus-maan Titan verscheen in 2012 plotseling een geheimzinnige wolk. Planeetonderzoekers hebben nu ontdekt dat deze wolk verrassend genoeg bestaat uit zeer giftig blauwzuurijs, dat zich waarschijnlijk heeft gevormd na een snelle en extreme afkoeling van gassen in de…
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Bioloog Freek Vonk in DWDD University over gif
Bioloog Freek Vonk geeft een hoorcollege over zijn expertise: gif. De Gashouder op het Amsterdamse Westergasterrein is omgetoverd tot een gigantisch biologielokaal waarin Vonk vertelt over zijn meest hachelijke avonturen, het belang van giftige dieren en de medische implicaties van hun kostbaarste bezit.…
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Gilles van Wezel in De Buitendienst over giftige medicijnen
Gilles van Wezel was vrijdag 6 April te zien in De Buitendienst waar hij werd betrokken in een aflevering over giftige medicijnen.
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Gif van slangen en schorpioenen voor nieuwe antibiotica
Ziekenhuisbacteriën die ongevoelig zijn voor antibiotica vormen een groeiend probleem. De Leidse antibiotica-expert Gilles van Wezel gaat samen met collega Michael Richardson en met experts van het LUMC en Naturalis op zoek naar nieuwe antibiotica in het gif van slangen en schorpioenen. Daarvoor krijgt…
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Vrijheid en gif in de Nacht van Kunst & Kennis
De Nacht van Kunst & Kennis op 19 september is extra feestelijk vanwege de viering van het 88e lustrum van de Leidse universiteit. In het Academiegebouw draait het om het lustrumthema Vrijheid in vier tweegesprekken. En in de Stadschouwburg feliciteert De Veenfabriek de Leidse universiteit met een…
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Nalaten aan de universiteit: een gift voor de toekomst
Heb je wel eens overwogen het Leids Universiteits Fonds in jouw testament op te nemen?
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Isogeny graphs, modular polynomials, and applications
This thesis has three main parts. The first part gives an algorithm to compute Hilbert modular polynomials for ordinary abelian varieties with maximal real multiplication. Hilbert modular polynomials of a given level b give a way of finding all of the abelian varieties that are b-isogeneous to any given…
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Empirical signatures of universality, hierarchy and clustering in culture
In this thesis,
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SFA of Chlorine in Europe: A MacTempo Case-Study
An overview is given of the flows of chlorine and chlorinated hydrocarbons through the Europian Union.
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On the computation of norm residue symbols
An algorithm is discussed to compute the exponential representation of principal units in a finite extension field F of the p-adic rationals.
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Computability of the étale Euler-Poincaré characteristic
Promotor: S.J. Edixhoven, L.D.J. Taelman
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Synthetische biologie en genomics platform voor nieuwe bioactieve peptiden
Kan het gif van slangen, schorpioenen en andere dieren leiden tot nieuwe antibiotica?
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Positive representations of algebras of continuous functions
If X is a locally compact Hausdorff space, then a representation of the complex C* algebra C_0(X) on a Hilbert space $H$ is given by a spectral measure that takes its values in the orthogonal projections on $H$.
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Comorbidities, complications and treatment of childhood obesity
Childhood obesity is an increasing health issue. In the first part of this thesis comorbidities in children with obesity were studied, concerning the diagnostic process and dosing regimens.
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Imperfect information variants of combinatorial games
Combinatorial games are games for two competing players, moving in a turn-by-turn fashion, in which there is no chance nor hidden information. Chess, checkers and the simpler tic tac toe are well-known examples of this class of games, as well as game of go.
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Sparsity-Based Algorithms for Inverse Problems
Inverse problems are problems where we want to estimate the values of certain parameters of a system given observations of the system. Such problems occur in several areas of science and engineering. Inverse problems are often ill-posed, which means that the observations of the system do not uniquely…
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Semigroups on Spaces of Measures
Promotor: S.M. Verduyn Lunel, Co-promotor: S.C. Hille
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DNA expressions - A formal notation for DNA
Promotores: J.N. Kok, H.J. Hoogeboom
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On the amount of sieving in factorization methods
Promotoren: R. Tijdeman, A.K. Lenstra, Co-promotor: H.J.J. te Riele
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Inverse problems for universal deformation rings of group representations
Promotor: Prof.dr. P. Stevenhagen
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Deterministic equation solving over finite fields
Promotor: H.W. Lenstra
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The Many Faces Of Online Learning
In this dissertation several settings in the Online Learning framework are studied. The first chapter serves as an introduction to the relevant settings in Online Learning and in the subsequent chapters new results and insights are given for both full-information and bandit information settings.
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On metrics and models for multiplex networks
In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.
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Using mouse models to uncover genes driving tumorigenesis and therapy resistance in human breast cancer
To improve cancer treatments, personalized medicine approaches have aimed to identify exactly which mutations are driving tumor development in a given patient and specifically target these mutations using precision therapies.
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Improved Strategies for Distance Based Clustering of Objects on Subsets of Attributes in High-Dimensional Data
This monograph focuses on clustering of objects in high-dimensional data, given the restriction that the objects do not cluster on all the attributes, not even on a single subset of attributes, but often on different subsets of attributes in the data.
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Accountable Artificial Intelligence: Holding Algorithms to Account
Artificial intelligence algorithms govern in subtle, yet fundamental ways, the way we live and are transforming our societies. The promise of efficient, low‐cost or ‘neutral’ solutions harnessing the potential of big data has led public bodies to adopt algorithmic systems in the provision of public…
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Random walks in dynamic random environments
Promotor: W.Th.F. den Hollander
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Search for cosmic neutrinos with ANTARES
Promotor: Prof.dr. M. de Jong, Co-Promotor: A.J. Heijboer
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LUF Campagne 450
Wie vooruitkijkt, ziet dat we de toekomst met elkaar bouwen.
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Images of Galois representations
Promotores: S.J. Edixhoven, P.Parent
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To explore the drug space smarter: Artificial intelligence in drug design for G protein-coupled receptors
Over several decades, a variety of computational methods for drug discovery have been proposed and applied in practice. With the accumulation of data and the development of machine learning methods, computational drug design methods have gradually shifted to a new paradigm, i.e. deep learning methods…
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Discrete tomography for integer-valued functions
Promotor: S.J. Edixhoven, Co-promotor: K.J. Batenburg
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Postmaterialism and Socioeconomic Status Impact in the Chilean Voting Behavior
This paper describes the development process of voting behavior in Chile; particularly the relationship between the class voting theory and the theory of cultural post-materialist vote is investigated. This research deals with Chile as a case study, a developing country with a relatively stable democracy…
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Diversity and distribution of octocorals and scleractinians in the Persian Gulf region
Promotor: E. Gittenberger, Co-promotores: B.W. Hoeksema; L.P. van Ofwegen
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Development of Quantitative Nanostructure Activity Relationship (QNAR) Models Predicting the Toxicity of Metal-based Nanoparticles to Aquatic
Describe and identify what dosimetry parameters are of importance to interpret dose-response relationships (eg., mortality, sub-lethal, growth or reproduction inhabitation, DNA damage and reactive oxygen species, etc. ) for metal-based nanoparticles? How to develop quantitative models that enable to…
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Realising the right to reproduce with assistance in South Africa
Op 10 november 2021 verdedigde Carmel van Niekerk-Jacobs het proefschrift 'Realising the right to reproduce with assistance in South Africa'. Het promotieonderzoek is begeleid door prof.dr. J.J. Sloth-Nielsen en prof.dr. T. Liefaard.
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Galois representations of elliptic curves and abelian entanglements
Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Universite Bordeaux I)
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Steun uw faculteit
De faculteit waardeert het wanneer alumni iets terug willen geven aan de faculteit. Of het nu een gift, advies of een deel van uw tijd is, we zijn er heel dankbaar voor. Bijdragen zijn door de eeuwen heen onmisbaar geweest om de kwaliteit van onderzoek en onderwijs op hoog niveau te houden.
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Minerva Scholarship Fund
Bachelor, Master
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Single-electrolyte isotachophoresis: on-chip analyte focusing and separation
Promotor: Thomas Hankemeier, Co-promotores: Heiko van der Linden, Paul Vulto
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Unfolding the regulation of stress response pathways upon liver injury
Drug-induced liver injury (DILI) is one of the main reasons for drug attrition during pre-clinical and clinical phases of drug development as well as for drug withdrawal post-marketing.
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Arithmetic of affine del Pezzo surfaces
In this thesis integral points on affine del Pezzo surfaces are studied.
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On the 16-rank of class groups of quadratic number fields
Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)
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Typical representations of GL_n(F)
Promotores: Bas Edixhoven, Guy Henniart
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Exploring and exploiting the mechanism of mycelial pellet formation by Streptomyces
Promotor: G.P. van Wezel
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Better Predictions when Models are Wrong or Underspecified
Promotor: P.D. Grünwald
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Next generation bacitracin: reimagining a classic antibiotic
Given the accelerating appearance of antimicrobial resistance, there is an urgent need for more fundamental research into novel antibiotic strategies. The work in this thesis helps to address this global problem by developing new antibiotic compounds, inspired by the antibacterial mechanisms of the…
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Complex multiplication of abelian surfaces
Promotor: Peter Stevenhagen