1,290 search results for “mathematisch patterns” in the Public website
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Geometry of Vegetation Pattern
One of the effects of climate change is the phenomenon of desertification, a process that occurs in semi-arid and arid areas and causes land degradation as well as vegetation loss. Due to the lack of resources, vegetation self-organizes to sustain itself by forming large-scale spatial patterns.
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Global distribution patterns of distinct mycorrhizal types and ecological drivers of these patterns
What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?
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Spatial patterns in landscape archaeology
This PhD project develops and applies a GIS procedure to use legacy survey data in settlement pattern analysis. As part of the research by the LERC project (NWO, Leiden University, KNIR), legacy data produced by surveys in central and southern Italy are examined in a comparative framework to investigate…
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Complex Patterns in Streams
The goal of the project is the development of stream mining techniques for complex patterns such as graphs. We will try to extend the existing state-of-the-art techniques into two, orthogonal directions: on the one hand, the mining of more complex patterns in streams, such as sequential patterns and…
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Patterns in natural systems
Promotor: A. Doelman, Co-promotores: P.J.A. van Heijster; A. Zagaris
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Pattern mining for label ranking
Promotor: J.N. Kok, Co-promotor: C.M. Soares, A.J. Knobbe
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Travelling patterns on Discrete Media
This thesis describes how complex and real-world relevant analytical solutions can be found starting from a simple Nagumo problem posed on one or two-dimensional lattices.
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Spatial patterns in landscape archaeology (publication)
In several Mediterranean regions archaeological sites have been mapped by fieldwalking surveys, producing large amounts of data. These legacy site-based survey data represent an important resource to study ancient settlement organization. Methodological procedures are necessary to cope with the limits…
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Patterns of Paleomobility in the Ancient Antilles
Patterns of paleomobility in the Caribbean were studied through an inter-disciplinary approach using a combination of archaeological, osteological, mortuary, and isotopic data.
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Global distribution patterns of mycorrhizal associations
Mycorrhizas are symbiotic associations between soil fungi and most plant species.
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Changing Patterns of Animal Exploitation
This part entails the analysis of an extensive sample of animal bone (c. 30,000 pieces) retrieved from well-defined archaeological contexts of the early period at Tell Sabi Abyad, c. 6800-6200 BC. It comprises aspects of taphonomy, ageing and osteometry, the reconstruction of the local spectrum of domestic…
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Patterns on Spatially Structured Domains
We consider the propagation of electrical signals through nerve fibres.
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Network analysis reveals unexpected societal patterns
Thanks to data science, we can chart and search enormous quantities of related information. This generates all kinds of new insights, for example in complex global financial structures or such societal problems as loneliness.
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Abstract patterns and representations: the re-cognition of geometric ornament
On May 17th, Arthur Crucq succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Arthur on this great result.
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Patterns of coral species richness and reef connectivity in Malaysia
Promotor: E. Gittenberger, Co-promotor: B.W. Hoeksema
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Prehistoric settlement patterns around the southern North Sea
Papers presented at a colloquium, held in honour of Professor Dr. P.J.R. Modderman, Leiden, 3-7 May 1982.
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Noisy Patterns: Bridging the gap between stochastics and dynamics
In this thesis, we study travelling waves in stochastic reaction-diffusion equations. We extend techniques from the deterministic theory for travelling waves to apply to the stochastic version, which allows us to compute the stochastic wave speed and shape, and draw conclusions on the stability of the…
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Patterns of Politicization in 14 Democracies
Under what circumstances is politicization more likely to occur than others, and what impact does politicization have on government legitimacy and performance?
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Waves and Patterns in Discrete Media: Bridging the Gaps
What happens to electrical waves that have to cross gaps in insulation material around nerves in the human body
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Lines in the sand: behaviour of self-organised vegetation patterns in dryland ecosystems
Vast, often populated, areas in dryland ecosystems face the dangers of desertification.
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Patterns of Living in Southern Africa, 1780s to the present
Southern Africa has a rich tradition of social history, one inspired by the tumultuous changes that have regularly convulsed the region from the 1780s onwards. Scholars have always sought to understand what these changes meant for everyday life and emphasised a perspective of marginal groups, how these…
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Patterns of Panow: Dimensions of Mobility among the Pantaron Manobo
In this book chapter, Andrea Malaya M. Ragragio and Myfel D. Paluga unpack the indigenous category
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A time-space translation mechanism for patterning the vertebrate anteroposterior axis
My PhD project studies how the temporally sequential Hox gene expression is regulated during head-tail patterning of the frog embryo.
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Cultural evolutionary modeling of patterns in language change. Exercises in evolutionary linguistics
This thesis describes the use of the evolutionary approach in the study of language change, aiming to provide a better insight in the mechanisms that play a role in language change and to validate this approach in the field of language change.
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Simple rule learning is not simple: Studies on infant and adult pattern perception and production
On December 11th, Andreea Geambasu succesfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Andreea on this great result.
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ditch bank plant diversity : the interaction between spatiotemporal patterns and agri-environmental management
Promotor: G.R. de Snoo, Co-promotor: C.J.M. Musters
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From Pixels to Patterns: AI-Driven Image Analysis in Multiple Domains
PhD defence
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theory and science about the presumed universality of geometrical patterns and its cognitive foundation
Knowledge and culture subproject 3:
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contact: bridging the gap between individual interactions and areal patterns
A new publication that brings together perspectives on language contact phenomena across temporal and spatial dimensions.
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organisation and interaction interpreted through the study of settlement patterns
An archaeological case-study of the Pointe des Châteaux, La Désirade and Les Îles de la Petite Terre micro-region, Guadeloupe, F.W.I.
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On the origin of patterning in movable Latin type : Renaissance standardisation, systematisation, and unitisation of textura and roman type
This PhD-research is conducted to test the hypothesis that Gutenberg and consorts developed a standardised and even unitised system for the production of textura type, and that this system was extrapolated for the production of roman type in Renaissance Italy.
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Collaborators and advisors
Collaborators and advisors of the Plant BioDynamics Laboratory
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The connected Caribbean. A socio-material network approach to patterns of homogeneity and diversity in the pre-colonial period
The modern-day Caribbean is a stunningly diverse but also intricately interconnected geo-cultural region, resulting partly from the islands’ shared colonial histories and an increasingly globalizing economy.
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Media Technology exhibition PATTERN
Our annual "Science to Experience" exhibition of student works is hosted by the V2_ Lab for the Unstable Media. This year's theme is "PATTERN".
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It's just a phase: High-contrast imaging with patterned liquid-crystal phase plates to facilitate characterization of exoplanets
This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.
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Riia Timonen
Faculteit Archeologie
r.e.timonen@arch.leidenuniv.nl | +31 71 527 2727
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Guilherme D'Andrea Curra
Faculteit Archeologie
g.dandrea.curra@arch.leidenuniv.nl | +31 71 527 2727
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‘Standing Room Only’ at eLaw’s CPDP Panel on 'Dark Patterns and Data-Driven Manipulation'
With the conference circuit slowly reopening after Covid forced almost all academic interactions online, thousands of conference attendees descended on Brussels for Europe’s largest technology conference. eLaw’s annual sponsorship of one of the many CPDP conference panels brought a diverse range of…
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Butterflies’ wing patterns change with the seasons
Tropical butterflies adapt to their environment to improve their chances of survival. The changes are triggered by hormone signals that transmit information about temperature to the butterflies' tissues. Biologist Ana Rita Mateus shows how a complex combination of environment, physiology and genetics…
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Shape Analysis for Phenotype Characterisation from High-throughput Imaging
We have studied shape with a particular focus on the zebrafish model system. The shape is an essential appearance of the phenotype of a biological specimen and it can be used to read out a current state or response or to study gene expression.
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Searching for 27 million patterns in 6,000 tax treaties
PhD candidate Manon Wintgens is using an algorithm to trawl through thousands of international tax treaties. She hopes to detect a system in the dizzying interplay between countries, businesses and documents. It is a unique research project.
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Origami metamaterials : design, symmetries, and combinatorics
In the first part of this thesis we study the geometry of folding patterns.
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Placing Changes
What does site patterning reveal about the social landscape dynamics across the historical divide?
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Computer Systems, Imagery & media
The Computer Systems, Imagery & media (CSI) research programme performs research on methods and techniques for the design, implementation and application of advanced computer systems, in particular parallel, distributed and embedded computer systems.
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Pulses in singularly perturbed reaction-diffusion systems
Promotor: Arjen Doelman, Co-promotor: Vivi Rottschäfer
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Ola Uttenweiler
Faculty of Humanities
a.uttenweiler@hum.leidenuniv.nl | +31 71 527 2727
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Valentina Azzarà
Faculteit Archeologie
v.m.azzara@arch.leidenuniv.nl | +31 71 527 2727
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Sebastian Fajardo Bernal
Science
s.d.fajardo.bernal@liacs.leidenuniv.nl | +31 71 527 2727
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Arko Ghosh in the Guardian about tappigraphy patterns on our smartphones
The company QuantActions promises that through capturing and analysing the data of smartphones it will be able to “detect important indicators related to mental/neurological health”. Neuroscientist Arko Ghosh is the company’s cofounder and talks in The Guardian about tappigraphy patterns.
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Structural Health Monitoring Meets Data Mining
Promotor: Prof.dr. J.N. Kok, Co-promotor: Dr. A.J. Knobbe