10,000 search results for “leiden” in the Public website
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A grammar of Papuan Malay
This grammar presents an in-depth linguistic description of one Papuan Malay variety, based on fifteen hours of recordings of spontaneous narratives and conversations between Papuan Malay speakers.
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Microscopy and Spectroscopy on Model Catalysts in Gas Environments
In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.
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Novel factors modulating AGC kinase signaling-controlled polar auxin transport
The PID-directed shift in PIN polarity has been broadly accepted as one of the essential mechanisms for the regulation of auxin transport polarity.
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Science based business
The mission of science based business (SBB) connects the domains of science, business, and policy. Scientific research we focus on at Leiden in areas such as artificial intelligence promises to reshape our societies for the better. Translating science into positive societal impact however requires new…
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Barbarism Revisited: New Perspectives on an Old Concept
The figure of the barbarian has captivated the Western imagination from Greek antiquity to the present. Since the 1990s, the rhetoric of civilization versus barbarism has taken center stage in Western political rhetoric and the media. But how can the longevity and popularity of this opposition be accounted…
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The evolution of shell form in tropical terrestrial microsnails
Promotor: Prof.dr. M. Schilthuizen
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The use of computational toxicology in hazard assessment of engineered nanomaterials
Assessing the risks of engineered nanomaterials (ENMs) solely on the basis of experimental assays is time-consuming, resource intensive, and constrained by ethical considerations (such as the principles of the 3Rs of animal testing). The adoption of computational toxicology in this field is a high p…
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The EU’s Conceptualisation of the Rule of Law in its External Relations: Case Studies on Development Cooperation and Enlargement
On 26 June 2019, Lisa Louwerse defended her thesis 'The EU’s Conceptualisation of the Rule of Law in its External Relations: Case Studies on Development Cooperation and Enlargement'. The doctoral research was supervised by Prof. C.A.P. Hillion.
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Genetic and environmental factors determining heterogeneity in preservation stress resistance of Aspergillus niger conidia
Fungal food spoilage often starts with a contamination with spores. Experimental data strongly indicate the existence of subpopulations of spores with different levels of resistance to preservation methods.
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Severe behavioral and emotional problems, special education and youth care
Which educational and child welfare interventions offer optimal opportunities for positive development to children with severe behavioral and emotional disorders.
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De verzamelwoede van Martinus van Marum (1750-1837) en de ouderdom van de aarde
Promotor: F.J. van Lunteren, E. Jorin
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Human nature and governance: soulcraft and statecraft in eleventh century China
On the 2nd of September Jiyan Qiao successfully defended a doctoral thesis and graduated.
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Law and peace in the work of Hans Kelsen
Law and peace in the work of Hans Kelsen. A re-evaluation of Kelsen’s legal philosophy: legal pacifism as tacit meaning of his Pure Theory of Law
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The formation of complex organic molecules in dense clouds-Sweet results from laboratory
Large areas of space are filled by molecular clouds that consist of gas and dust grains that are the remnants of dead stars. When these clouds start collapsing, the decreasing temperature and increasing density cause gas particles to start accreting onto dust grain surfaces.
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The Interactions of Human Mobility and Farming Systems and Impacts on Biodiversity and Soil Quality in the Western Highlands of Cameroon
Promotors: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Prof.dr.ir. H.H. de Iongh
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Transforming Wayang For Contemporary Audiences: Dramatic Expression in Purbo Asmoro’s Style, 1989-2015
Kathryn Emerson defended her thesis on 28 June 2016
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Voluntary return and the limits of individual responsibility in the EU Returns Directive
On 10 February 2022, Christian Mommers defended the thesis 'Voluntary return and the limits of individual responsibility in the EU Returns Directive'. The doctoral research was supervised by Prof. P.R. Rodrigues and Prof. P. Boeles.
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Heme biosynthesis and regulation in the filamentous fungus Aspergillus niger
Promotors: Prof.dr. P.J. Punt, Prof.dr. C.A.M.J.J. van den Hondel
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Cryptography from quantum uncertainty in the presence of quantum side information
Promotor: Ronald Cramer, Co-promotor: Serge Fehr
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Body and Ki in GiCheon: Practices of Self-Cultivation in Contemporary Korea
Yeonhwa Jeon defended her thesis on 6 July 2017.
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Finding and valorizing new antibiotics using AI
Antibiotics are a class of medicine most people take for granted. But pathogenic bacteria are becoming more and more resistant to our antibiotics, and this poses a great challenge for future treatments. There is thus a great societal need to identify new molecules that can address new targets and be…
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Open to all, not known to all: sustaining practices with open educational resources in higher education
In higher education, Open Educational Resources (OER) are available for anyone to use, but they are not widely used.
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Cryo-EM of cholera infection
The structure of bacterial cells provides crucial clues about their interaction with their host. What are the key structural features of a bacterial cell that determine pathogenicity? What roles do these structures play in the life cycle, and how do they change during the infection process?
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Allosteric modulation by sodium ions and amilorides of G protein- coupled receptors
Promotor: A.P. IJzerman
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Concurrence in European Private Law
On 9 September 2020, Ruben de Graaff defended his thesis 'Concurrence in European Private Law'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. S.C.G. Van den Bogaert.
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Another Athanasius: Four Sahidic Homilies attributed to St. Athanasius of Alexandria
Ibrahim Saweros defended his thesis on 9 November 2016
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Stable single molecules for quantum optics and all-optical switches
Promotor: Prof.dr. M.A.G.J. Orrit
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The Travel of Ideas in the Age of Steam and Print: The Ottoman Caliphate versus Wahhabism and Mahdism
Ömer Koçyigit defended his thesis on 7 July 2020
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Epistemological Inquiry into Islam’s Moral Economic Teachings, Legal Discourse, and Islamization Process
Mr. S. Al Daghistani defended his thesis on 30 November 2017
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The complicated conservation problem of genetic pollution
How does invasive hybridization affect threatened native species?
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From molecules to monitoring: Integrating genetic tools into freshwater quality assessments
Freshwater is an important resource, but at a great risk of species decline due to habitat loss, pollution and over-exploitation, and invasive alien species.
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Tone sandhi, prosodic phrasing, and focus marking in Wenzhou Chinese
This thesis investigates the connection between tonal realization and tone change (tone sandhi) in Wenzhou Chinese, and whether and how such a connection is conditioned by prosodic structure and focus marking.
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Learning-based Representations of High-dimensional CAE Models for Automotive Design Optimization
In design optimization problems, engineers typically handcraft design representations based on personal expertise, which leaves a fingerprint of the user experience in the optimization data. Thus, learning this notion of experience as transferrable design features has potential to improve the performance…
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Measuring science communication impact
What tools can be applied to measure the output, outcome and impact of science communication efficiently and effectively?
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Policy Effectiveness through Configurational and Mechanistic Lenses: Lessons for Concept Development
Valérie Pattyn, Assistant Professor at Leiden University, researched
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Potential interference of fungal endophytes in Vanilla planifolia on vanilla flavor compounds biosynthesis
Natural vanilla flavor is one of the most important in the world. However, the cost of this flavor is expensive. Production of this flavor by alternative methods, could reduce the cost.
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X-ray spectroscopy of interstellar dust: from the laboratory to the Galaxy
In this thesis, we present new laboratory data of interstellar dust analogues.
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The assembly history of the milky way nuclear star cluster
Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven
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Species Literacy: The perception and cultural portrayal of animals
In his dissertation Michiel Hooykaas outlines the results of six empirical research projects focused at biodiversity awareness in the Netherlands, specifically people’s knowledge about animals.
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European Labour Law Network
This research concerns a network of labour law specialists in the EU. The growing internationalization of the economic market and the employment market has a major impact on legislation and research of labour law. Particularly within the European Union labour law is subject to constant development…
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Small-molecule inhibitors of bacterial metallo-β-lactamases
The main focus of the thesis is the discovery and development of novel inhibitors of bacterial metallo-β-lactamases (MBLs).
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Transcultural Health Care Utilisation in Serengeti of Tanzania: Towards Applied Ethnoscience in Public Health Management
The research provides insight into disease behavior in both rural and semi-urban areas in Serengeti in Tanzania.
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The International Labour Organisation: 100 years 1919-2019
The International Labour Organisation (ILO) was established in 1919 based on the premise that social justice is a condition for lasting peace. On February 2019 the ILO celebrated its 100th anniversary with an international symposium to consider the future of the ILO.
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Cooperation of International Organisations in Peacekeeping Operations and Issues of International Responsibility
Can international organisations be held responsible for violations of international law by peacekeepers in a peacekeeping operation?
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Towards an effective biodiversity conservation and governance in the Pontocaspian region
Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known…
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Modulation of Stratum Corneum Lipid Composition and Organization of Human Skin Equivalents by Specific Medium Supplements
Our in-house human skin equivalents contain all stratum corneum (SC) barrier lipid classes, but have a reduced level of free fatty acids (FAs), of which a part is mono-unsaturated. These differences lead to an altered SC lipid organization and thereby a reduced barrier function compared to human skin.…
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The acquisition of verbal morphology in cochlear-implanted and specific language impaired children
This dissertation aims at enhancing our knowledge of whether a CI provides sufficient access to auditory speech input to acquire verbal morphology by comparing outcomes of CI children to those of their normal hearing peers and to those of children with specific language impaired (SLI).
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Maintaining Order: Public Prosecutors in Post-Authoritarian Countries, the case of Indonesia
On 21 January 2021, Fachrizal Afandi defended his thesis 'Maintaining Order: Public Prosecutors in Post-Authoritarian Countries, the case of Indonesia'. The doctoral research was supervised by Prof. A.W. Bedner and Prof. J.H. Crijns.
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Biodiesel production using blue-green cyanobacterium Synechococcus elongatus PCC 7942
Promotores: Prof.dr. C.A.M.J.J. van den Hondel, Prof.dr. V. Meyer (Technische Universität Berlin)
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Elite and popular religiosity among Dutch-Turkish muslims in the Netherlands
Ömer Gürlesin defended his thesis on 28 November 2018