315 zoekresultaten voor “mathematics patterns” in de Publieke website
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Synthesis of Ribitol Phosphate based Wall Teichoic acids
Antibiotic resistance, caused by widespread use of antibiotics, leads to bacterial infections that are difficult, if not impossible, to treat and is a major worldwide health concern.
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The Miliuseae revisited: phylogenetic, taxonomic, and palynological studies in a major clade of Annonaceae
Promotor: Prof.dr. E.F. Smets, Co-Promotor: L.W. Chatrou
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Genetic diversity in the lion (Panthera leo (Linnaeus 1758)): unravelling the past and prospects for the future
Promotor: Prof.dr. G.R. de Snoo
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Constraint-Based Analysis of Business Process Models
Business Process Model and Notation (BPMN) has become the standard for business processes diagrams.
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Impact of low-carbon electricity development on carbon emissions in China
Low-carbon (LE) technologies have a significant potential to reduce the total carbon emissions in China.
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Multi-dimensional feature and data mining
In this thesis we explore machine and deep learning approaches that address keychallenges in high dimensional problem areas and also in improving accuracy in wellknown problems. In high dimensional contexts, we have focused on computational fluid dynamics (CFD) simulations.
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Fire and grazers in the West African savanna
Promotores: H.A. Udo de Haes, H.H.T. Prins, Co-promotor: H.H. de Iongh
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Structure-reactivity relationships in glycosylation chemistry
In a typical glycosylation reaction, a donor is activated to form a (variety of) electrophilic species which can react with a nucleophilic acceptor, following a reaction mechanism having both SN1 and SN2 character.
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Above- and belowground interactions in Jacobaea vulgaris: zooming in and zooming out from a plant-soil feedback perspective
In this thesis, I focused on studying the above- and belowground interactions of J. vulgaris from a plant-soil feedback (hereafter, PSF) perspective. I investigated the temporal variation of negative PSF and examined the effects of root-associated bacteria on plant performance and aboveground herbiv…
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The flux and flow of data: connecting large datasets with machine learning in a drug discovery envirionment
This thesis focuses on data found in the field of computational drug discovery. New insight can be obtained by applying machine learning in various ways and in a variety of domains. Two studies delved into the application of proteochemometrics (PCM), a machine learning technique that can be used to…
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Manipulating carbon nanotubes Towards the application as novel field emission sources
Promotores: T.H. Oosterkamp, N. de Jonge
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Trading Responsibility: navigating national burdens in a globalized world
International trade has played a major role in defining the modern global economy. Trade, however, entangles the environmental pressures of economic sectors, giving the illusion of environmental improvements, while the opposite may be occurring.
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Applications of AdS/CFT to strongly correlated matter: from numerics to experiments
What physics controls the properties of quantum matter, such as how electrons flow inside high-temperature superconductors? This question has captivated the physics community and industry for decades, in part due to the great technological potential such materials have, but also because they have resisted…
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Data Science
Het verzamelen en interpreteren van grote hoeveelheden data is niet meer weg te denken uit de maatschappij en de wetenschap. De Universiteit Leiden is een kennis- en expertisecentrum van data science dat de nadruk legt op interdisciplinaire samenwerking en innovatie.
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Statistical modelling of time-varying covariates for survival data
This dissertation focuses on developing new mathematical and statistical methods to properly represent time-varying covariates and model them within the context of time-to-event analysis.
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Education
The specialisation Science Communication and Society (SCS) concerns science communication in a broad sense. The program focuses on the link between science and society and covers knowledge and skills in the field of science communication.
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Escher and the Droste effect
Artful Mathematics: The Heritage of M. C. Escher
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Some case studies of random walks in dynamic random environments
Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.
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The symmetry of crystals and the topology of electrons
Promotor: J. Zaanen, Co-Promotor: V. Juricic
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Another Brick in the Wall: The role of the actinobacterial cell wall in antibiotic resistance, phylogeny and development
Streptomyces are multicellular, Gram-positive bacteria in the phylum of actinobacteria which produce a high amount of bioactive natural products of which the expression is tightly coordinated with the life cycle.
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Developing systems for high-throughput screening of infectious diseases using zebrafish
Promotor: Prof.dr. H.P. Spaink, Co-promotor: Prof.dr. A.H. Meijer
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The evolution of shell form in tropical terrestrial microsnails
Promotor: Prof.dr. M. Schilthuizen
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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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Mononuclear spin-transition materials based on the bapbpy scaffold
Promotor: Prof.dr. E. Bouwman, Co-Promotor: S. Bonnet
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Multiscale mathematical biology of cell-extracellular matrix interactions during morphogenesis
During embryonic growth, cells proliferate, differentiate, and collectively migrate to form different tissues at the right position and time in the body.
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Progressive Indexes
Interactive exploration of large volumes of data is increasingly common, as data scientists attempt to extract interesting information from large opaque data sets. This scenario presents a difficult challenge for traditional database systems, as (1) nothing is known about the query workload in advance,…
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Effect of Nanoparticles on Microbial Catabolism and Community Structure using Biolog techniques
1. To what extent do metallic NPs added to soil extractions change the activity, abundance, or community composition of microbes? 2. How do the effects of metallic NPs on soil microbes differ from the effects of the ions shedding from corresponding NPs?
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Comparative biology of common and grey seals along the Dutch coast
What are the main factors associated with the stranding of the two seal species? What are the factors influencing the prevalence of disease in the two species? Which human-related factors influence the populations of the two seal species?
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Evolution and development of orchid flowers and fruits
To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.
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Student for a day Philosophy: Global and Comparative Perspectives
Studievoorlichting
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Assistant Professor in Computational Biodiversity
Wiskunde en Natuurwetenschappen, Leiden Institute of Advanced Computer Science (LIACS)
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Student projects
To get an idea of the science communication products and research that is possible, a few examples of student projects of recent years are shown below.
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SMALL Savannah : an information system for the integrated analysis of land use change in the Far North of Cameroon
Promotores: W.T. de Groot, M. Tchuenté, Co-promotor: J.P. Cheylan
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Ubar Kampung
The Sundanese people, the largest ethnic group in West Java, have been using traditional medicine for a long time. Known as ubar kampung, Sundanese indigenous knowledge, beliefs and practices of traditional medicine are based on local people’s knowledge and use of Medicinal, Aromatic, and Cosmetic (MAC)…
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EU Erasmus+ Curriculum Development in Data Science and Artificial Intelligence
LIACS is a partner in the EU Erasmus+ Curriculum Development for the Asian education system. The knowledge available in the field of Data Science and Artificial Intelligence education will be shared and adapted for the Asian market.
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Wild versus domestic prey in the diet of tigers
A recent study on reintroduced tigers in Panna Tiger Reserve in India reveals that risks from tigers increased more because of human behaviour and people's livestock husbandry practices.
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2 Lecturer positions (0.6-1.0 FTE) in Computer Science, Machine Learning, and AI
Wiskunde en Natuurwetenschappen, Leiden Institute of Advanced Computer Science (LIACS)
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Mathematisch Instituut
Wiskunde staat aan de basis van veel innovaties in techniek, dienstverlening en wetenschap, zoals in het analyseren en coderen van data, kunstmatige intelligentie, het modelleren van het weer of klimaatsverandering, of het begrijpen van moleculaire processen. De onderzoekers van het Mathematisch Instituut…
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Onderzoeksproject naar klimaat ‘Tipping points’ ontvangt 10 miljoen euro
Arjen Doelman (Universiteit Leiden), Max Rietkerk (Universiteit Utrecht), Ehud Meron (Ben-Gurion University of the Negev) en Isla Myers-Smith (University of Edinburgh) ontvangen voor hun RESILIENCE-project een ERC Synergy-subsidie van 10 miljoen euro. De wetenschappers gaan onderzoeken of en hoe we…
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Research Memoranda
Onderzoekreeks van de Afdeling Economie van de Universiteit Leiden op het raakvlak van economie en recht.
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GLOBOX
GLOBOX is a spatially differentiated multimedia fate, exposure and effect model. It is used for the calculation of spatially differentiated LCA characterisation factors on a global scale.
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Simone van der Hof
Faculteit Rechtsgeleerdheid
s.van.der.hof@law.leidenuniv.nl | +31 71 527 8838
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Prof.dr. Arjen Doelman benoemd tot hoogleraar Toegepaste analyse
Prof.dr. Arjen Doelman is per 1 februari 2009 bij de Faculteit der Wiskunde en Natuurwetenschappen benoemd tot hoogleraar Toegepaste analyse. Hij wordt verbonden aan het Mathematisch Instituut.
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Postdoc in Structures and Homotopy in Optimisation
Wiskunde en Natuurwetenschappen, Leiden Institute of Advanced Computer Science (LIACS)
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PhD candidate in Network Science
Wiskunde en Natuurwetenschappen, Leiden Institute of Advanced Computer Science (LIACS)
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Material flow analysis for the C&D waste management systems in the Netherlands, Belgium, Spain and Finland
What are the flows of C&DW (e.g. bricks, concrete, gypsum and wood) in the case study countries ? How to define the specification for each material to be quantified? What indicators should be used to identify the pattern of each C&DW management system? How to interpret the MFA results in relation…
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Cities, migration and global interdependence 1350-2000
The research programme Cities, Migration and Global Interdependence 1350-2000 (CMGI) focuses on urbanisation, migration, and economic development in a comparative and global context.
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Afrika-Studiecentrum Leiden
Afrika heeft een bevolking van 1,5 miljard mensen. In 2050 zal dit aantal naar verwachting stijgen tot 2,5 miljard. De impact van het continent op de wereldeconomie en samenlevingen, maar ook op het milieu, zal daardoor enorm toenemen.
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Afgeleid eten en compensatiemechanismen
Een onderzoek naar de invloed van afgeleid eten op consumptiebeleving en het consumptiegedrag.
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Vacancies PhD candidates (Tilburg)
The department of Public Law and Governance at Tilburg University is looking for 3 PhD Candidates who will be working within the project ‘Causal Pattern Analysis of Economic Sovereignty’, which is funded by the European Research Council. Deadline: 15 October 2022.