700 search results for “random matrix theory” in the Public website
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Ernst van Alphen
Faculty of Humanities
e.j.van.alphen@hum.leidenuniv.nl | +31 71 527 2727
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Random Erasing
Lecture
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Geometry in ornament: On the history, theory and science about the presumed universality of geometrical patterns and its cognitive foundation
Knowledge and culture subproject 3:
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Francisca Jungslager
Faculteit der Sociale Wetenschappen
f.s.jungslager@fsw.leidenuniv.nl | +31 71 527 2727
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Carlos Roos Muñoz
Faculty of Humanities
c.m.roos.munoz@hum.leidenuniv.nl | +31 71 527 2727
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Richard Gill
Science
gill@math.leidenuniv.nl |
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Jeroen ten Voorde
Faculteit Rechtsgeleerdheid
j.m.ten.voorde@law.leidenuniv.nl | +31 71 527 8928
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Peter Stevenhagen
Science
psh@math.leidenuniv.nl | +31 71 527 7125
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Rob Tijdeman
Science
tijdeman@math.leidenuniv.nl | +31 71 527 4831
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Threat of conspiracy theories limited
The risk that conspiracy theories could incite a broad movement against the established political order is virtually non-existent. This is what researcher Jelle van Buuren of the Institute of Security and Global Affairs concluded in his PhD dissertation.
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Cell adhesion signaling: dynamics, migration, and metastasis
Cell adhesion signaling
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Phase behavior of skin lipid mixtures: the effect of cholesterol on lipid organization
The lipid matrix in the stratum corneum (SC), the upper layer of the skin, plays a critical role in the skin barrier. The matrix consists of ceramides (CERs), cholesterol (CHOL) and free fatty acids (FFAs).
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Understanding the physical properties that affect the lipid organization in the skin barrier
It is the aim of this project to better understand how the physical properties of lipids influences the structure and overall barrier function of the skin.
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Mind in Practice : A Pragmatic and Interdisciplinary Account of Intersubjectivity
This book is about what happens when two people meet. Its main aim is to present an account of intersubjectivity.
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Decompositions in algebra
We show that Kirchhoff ’s law of conservation holds for non-commutative graph flows if and only if the graph is planar. We generalize the theory of (Euclidean) lattices to infinite dimension and consider the ring of algebraic integers as such a lattice.
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Mathematics-based strategies for repairing tumour blood vessels
How does the extracellular matrix coordinate endothelial cell behavior during angiogenesis, and how do metabolic waste-products and matrix-degrading enzymes produced by the tumour modify the extracellular matrix so as the change the cellular coordination?
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Dynamic hydrogels as synthetic extracellular matrices for three- dimensional cell culture
Synthetic hydrogels that mimic the natural extracellular matrix in the biophysical and biochemical cues it provides to cells are in high demand, however the cell phenotypes as they are observed in vivo in numerous cases have yet to be attained.
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A novel formulation for skin barrier repair : from ex vivo assessment towards clinical studies
The stratum corneum is the outermost skin layer and consists of dead cells embedded in a lipid matrix.
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Serge Fehr appointed as Professor Quantum information theory
As of 1 June, Serge Fehr has been appointed as Professor Quantum information theory at the Leiden Mathematical Institute (MI). Fehr is employed by Centrum Wiskunde & Informatica (CWI) and as of his appointment works one day a week at the MI. Fehr’s research is focused on quantum cryptology and will…
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Seminars
LCN2 organizes seminars on the last Friday of each month.
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Nidesh Lawtoo
Faculty of Humanities
n.lawtoo@hum.leidenuniv.nl | +31 71 527 2644
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Education
The information below concerns courses that our group teaches in Leiden.
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Research
Research in the POD-group addresses all features of random phenomena – modelling, structuring, analysis, control, optimisation – and covers both fundamental and applied aspects.
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Symposium: EU Crises: Rethinking European integration theories
On 12 May, GTGC Deputy Coordinator Valentina Carraro presented her work during the symposium “EU Crises: Rethinking European integration theories” at Maastricht University. The symposium was organised as part of the farewell event for the retirement of Prof. Tannelie Blom.
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Nuclear Quantum Effects in Solid Water
Ice, the solid state of water, plays an important role on our planet as well as the entire universe.Despite the fact that an individual water molecule has a very simple structure, its chemical bonding in the solid phase can be surprisingly complex.
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Superconductivity theory under attack
Measurements on a superconducting material show an abrupt transition between a normal metal and a 'strange' metal. The really strange thing, however, is that this abruptness disappears when the temperature falls. 'We don't have any theoretical machinery for this', says theoretical physicist Jan Zaanen,…
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Skin Barrier and Vaccination
The Skin Barrier and Vaccination group is led by Prof. Joke Bouwstra. One of the key functions of the skin is its barrier function, which is located in the uppermost layer of the skin, the stratum corneum. The stratum corneum consists of enucleated dead cells (corneocytes) embedded in a lipid matrix.…
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Complex networks in perspective
Conference
- Mathematical Institute
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Dimensions of student participation: participatory action research in a teacher education context
This thesis investigated the extent to which participation of school students in decision-making processes can be achieved, including through participatory action research (PAR) in teacher education.
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Development of hyaluronan-based dissolving microneedle arrays for dermal vaccination
Dissolving microneedles are a subgroup of microneedle types that completely dissolve within the skin. During this dissolving process the vaccine, stored in the needle matrix, is released into the skin.
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The important role of stratum corneum lipids for the cutaneous barrier function
The skin protects the body from unwanted influences from the environment as well as excessive water loss. The barrier function of the skin is located in the stratum corneum (SC).
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VARIS
When does it rain when air is oversaturated with moisture? How does an infection spread among the population? The problems that mathematician Professor Frank den Hollander tries to solve come from physics, chemistry and biology.
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Metastability for low-temperature Kawasaki dynamics with two types of particles
Promotor: W.Th.F. den Hollander, Co-promotor: F.R. Nardi
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The integration of meta-analysis and classification & regression trees: meta-CART
In meta-analysis, heterogeneity often exists between studies. In such cases, it is essential to investigate the sources of heterogeneity and understand the relationship between effect size and study characteristics (i.e., moderators).
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Division points in arithmetic
This thesis consists of three chapters, the first two of which concern division points of elements of the multiplicative group of a number field.
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Transport coefficients and low energy excitations of a strongly interacting holographic fluid
In this thesis, classes of strongly interacting quantum field theories, have been studied.
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Dividing Worlds
Dividing Worlds: Tsunamis, Seawalls, and Ontological Politics in Northeast Japan
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Enumerative arithmetic
This thesis consists of three chapters. Each chapter is on a different subject. However, all three chapters address issues that arise in counting arithmetically interesting objects.
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Dynamical Gibbs-non-Gibbs transitions and Brownian percolation
Promotor: Prof.dr. W.Th.F. den Hollander, Co-promotor: R. Fernandez
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The parabolic Anderson model and long-range percolation
Promotor: Prof.dr. F. den Hollander
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Measures and Matching for Number Systems
This thesis provides explicit expressions for the density functions of absolutely continuous invariant measures for general families of interval maps, that include random maps and infinite measure transformations, not necessarily number systems.
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Lipid model membrane systems as a tool for unraveling the underlying factors for skin barrier dysfunction
Barrier function is the natural role of the skin. The lipid matrix present in the outermost layer of the skin, the stratum corneum is important for this function.
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The effect of the chain length distribution of free fatty acids on the mixing properties of stratum corneum model membranes
The stratum corneum (SC) plays a fundamental role in the barrier function of the skin. The SC consists of corneocytes embedded in a lipid matrix.
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Sarita Koendjbiharie
Faculty of Humanities
s.r.koendjbiharie@hum.leidenuniv.nl | +31 70 800 9535
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Thomas Fossen
Faculty of Humanities
t.fossen@phil.leidenuniv.nl | +31 71 527 5244
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Cool little kids
Effectiveness of an early intervention program for anxiety-prone toddlers in the Netherlands
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Premiere of Sound Theory (The Clouds) by Gabriel Paiuk
In September 2021, ACPA PhD Candidate Gabriel Paiuk will premiere a new work titled Sound Theory (The Clouds) as part of the 2021 Gaudeamus Muziekweek Festival. The performance will take place on September 10th, 20:30 at the De Helling (Utrecht, NL).
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Guide for prospective students
If you are interested in studying stochastics, the following information will help you to choose the right path.
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Jelle van Buuren talks about conspiracy theories on Wetenschap.nu
Conspiracy theories are of all times, and the government should never dismiss them as a fantasy of fools. Certainly not now, when it turned out that authorities made a conspiracy themselves with a journalist threatened with murder. Which proves that the truth is always more insane than you could have…