2,211 zoekresultaten voor “group and plants studies” in de Publieke website
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Groups and fields in arithmetic
Promotor: Prof.dr. H.W. Lenstra
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The unit residue group
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.
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Metabolomic characteristics of Catharanthus roseus plants in time and space
Promotor: R. Verpoorte, Co-promotores: Y.H.Choi, N.R. Mustafa
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Quantifying the toxicity of mixtures of metals and metal-based nanoparticles to higher plants
Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver
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Transfer of "goods" from plants to humans: Fundamental and applied biochemical investigations on retaining glycosidases
The studies described in this thesis deal with glycosidases, in particular alpha-galactosidases.
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Anti-microbial and Anti-biofilm compounds From Indonesian Medicinal Plants
Promotor: C.A.M.J.J. van den Hondel, Co-promotor: Sandra de Weert
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Inverse problems for universal deformation rings of group representations
Promotor: Prof.dr. P. Stevenhagen
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Profinite groups with a rational probabilistic zeta function
Promotores: H.W. Lenstra, A. Lucchini
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The ecological relevance of chemical diversity in plants
Promotor: P.G.L. Klinkhamer, Co-Promotores: K. Vrieling, P.P.J. Mulder
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Expansions of quantum group invariants
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.
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The evolution of chemical diversity in plants : pyrrolizidine alkaloids and cytochrome P450s in Jacobaea
Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.
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Effects of light at night on plants and their interactions with other species
What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?
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Dynamic real-time substrate feed optimization of anaerobic co-digestion plants
Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M. Bongards (Cologne University)
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Group representations in Banach spaces and Banach lattices
Promotor: S.M. Verduyn Lunel, Co-promotores: M.F.E. de Jeu, B. de Pagter
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Governance and Data Science Group
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…
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The impact of defense hormones on the interaction between plants and the soil microbial community
The soil ecosystem consists of the largest reservoir of biodiversity on Earth.
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Intense automorphisms of finite groups
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.
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Random walks on Arakelov class groups
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.
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Kummer theory for commutative algebraic groups
This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.
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Fertility and fontanels: women’s knowledge of medicinal plants for reproductive health and childcare in western Africa
Promotor: E.F. Smets, Co-promotor: T.R. van Andel
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Terrorist Group Adaptation & Lessons for Counterterrorism (TERGAP)
Terroristische groepen passen zich aan veranderingen in hun omgeving aan om relevant te blijven. Dit project biedt nieuwe inzichten door een theorie over strategische doelwitselectie te ontwikkelen en big data-analyse en machine learning toe te passen om de hypothesen te testen.
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Microcoil MRI of Plants and Algae at Ultra-High Field: An exploration of metabolic imaging
This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).
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Knowledge of Medicinal, Aromatic and Cosmetic (MAC) Plants in the Utilisation of the Plural Medical System in Pirgos and Praitoria for Community Health
Promotor: Prof.dr. L.J. Slikkerveer
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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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Universal adelic groups for imaginary quadratic number fields and elliptic curves
Promotor: Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Univ. de Bordeaux)
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Novel Protecting Group Strategies in the Synthesis of Oligosaccharides
The thesis focuses on synthesis strategies in oligosaccharide campaigns, and the influence of protecting groups.
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Principal algebraic actions of the discrete Heisenberg group
Promotor: Prof.dr. W.T.F. den Hollander
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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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Kearifan Kesehatan Lokal: indigenous medical knowledge and practice for integrated nursing of the elderly with cardiovascular disease in Sumedang
The different kinds of cultural perspectives on health and disease of the participants are related to their knowledge, beliefs, values and practices manifested in various forms of lifestyle in Indonesia. The cultural diversity of the population is also related to differences in health behaviour.
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Computational aspects of class group actions and applications to post-quantum cryptography
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…
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Collaboration in groups during teacher education
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…
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of wetland plant traits in relation to the strategies of wetland plants and the impacts on ecosystem functioning
What are trait-trait relationships in wetlands? To what extent the so-called leaf economics traits deviate from terrestrial ecosystems? How traits specific to wetland plant relate to plant strategies? What’s the relationship between wetland plant traits to the ecosystem functioning (e.g. productivity,…
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Harvesting sunlight with plants and microorganisms: imaging and metabolomics with novel microcoil and cryoprobe at ultrahigh magnetic field
Huub de Groot
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Discriminatory punishment undermines the enforcement of group cooperation
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…
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Related Party Transactions and Corporate Groups: When Eastern Europe Meets the West
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).
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Comparing the Biographical Backgrounds and Radicalization Dynamics of Lone-Actor and Group-Based Terrorists
Waarom radicaliseert de ene persoon tot betrokkenheid bij terroristisch geweld binnen een groepscontext, terwijl de ander zich alleen aan deze vorm van geweld waagt? In dit artikel vergelijken Bart Schuurman en Sarah Carthy op basis van een nieuw ontwikkelde dataset terroristen in groepsverband en terroristen…
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Laura Julia ZantisWiskunde en Natuurwetenschappen
l.j.zantis@cml.leidenuniv.nl | +31 71 527 2727
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Evolutionary diversification of Nepenthes (Nepenthaceae)
Promotor: Erik F. Smets, Co-promotores: Barbara Gravendeel, Niels Raes
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Self-reliance crowds out group cooperation and increases wealth inequality
Hoe leidt zelfredzaamheid tot een afname in samenwerking voor publieke goederen?
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Collaborative learning in higher education: design, implementation and evaluation of group learning activities
Samenwerkend leren in het hoger onderwijs: ontwerp, implementatie en evaluatie van groepsleeropdrachten
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Group benefits from genomic instability: a tale of antibiotic warriors in Streptomyces
Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.
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Question’: The postcolonial dilemmas of three colonial mixed-ancestry groups compared
Waarom kozen sommige Euraziërs ervoor in de voormalige kolonie te blijven, terwijl anderen naar de metropool of een ander land vertrokken?
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Universitat de Lleida - Consolidated Medieval Studies Research Group - Seminar series
On Wednesday, 22 September, at 17.00, this interdisciplinary research group kicks off a series of online seminars.
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Leiden Slavery Studies Association
De Leiden Slavery Studies Association (LSSA) is toegewijd aan het bevorderen van een beter begrip van slavernij en post-slavernij in elke periode en elk geografisch gebied.
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Development of a consistent methodology for assessment of the combined effects of metal-based chemicals to lettuce (Lactuca sativa L.)
Hoe kan de methode om de gecombineerde effecten van metaal-gebaseerde chemische stoffetn te bepalen worden verbeterd?
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The Power of Knowledge Ethical, Legal and Technological Aspects of Data Mining and Group Profiling in Epidemiology
In de afgelopen jaren is het verzamelen en verwerken van tal van gegevens aanzienlijk toegenomen. Met behulp van nieuwe technologieën zoals data mining wordt getracht kennis te halen uit verzamelde gegevens. Vaak wordt gezocht naar profielen die eigenschappen of risico's van bepaalde groepen beschrijven.…
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Optimisation of first clinical studies in special populations: towards semi-physiological pharmacokinetic models
M. Danhof, Co-promotores: J. Freijer, A. Yassen
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Musems, Collections and Society | Yearbook 2021
In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.
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Joeri LammertsFaculteit Governance and Global Affairs
j.lammerts@fgga.leidenuniv.nl | 070 8009500
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Nieuwe topic group ELS lab @Leiden over Goed Werkgeverschap
ELS lab @Leiden is op zoek naar collega’s die deel willen nemen aan de nieuwe topic group op Goed Werkgeverschap.