3,481 zoekresultaten voor “afrika in the world” in de Publieke website
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Expanding the coverage of ecosystem services in life cycle assessment: an interdisciplinary venture
To contribute to the body of knowledge aiming at a better coverage of ecosystem service assessment in LCA studies, this thesis dives into the challenges of incorporating existing ecosystem service methods within the impact assessment phase of the conventional LCA framework.
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Fungi of the greening Arctic: compositional and functional shifts in response to climatic changes
Promotor: E.F. Smets Co-promotor: J. Geml
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Arakelov inequalities and semistable families of curves uniformized by the unit ball
The main object of study in this thesis is an Arakelov inequalitywhich bounds the degree of an invertible subsheaf of the direct image ofthe pluricanonical relative sheaf of a semistable family of curves.
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Unraveling the mechanism of multicopper oxidases: from ensemble to single molecule
Promotores: Prof.dr. G.W. Canters, Prof.dr. T.J. Aartsma
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Restoration of ditch bank plant diversity : the interaction between spatiotemporal patterns and agri-environmental management
Promotor: G.R. de Snoo, Co-promotor: C.J.M. Muster
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indicators for sustainable forest management, East Kalimantan, Indonesia. The impossible made possible?
What is vegetation structure and composition in SFM primary forest, secondary logged over forest (logging FSC certified and logging non certified) in comparison to primary forest? What is avian guild diversity in SFM primary forest, secondary logged over forest (logging FSC certified and logging non…
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compression and statistics disagree: two frequentist challenges for the minimum description length principle
Promotor: P.D. Grünwald
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Semi-empirical approach to the simulation of molecule-surface reaction dynamics
Catalysis is of extreme relevance in the production of everyday materials and plays a central role in many aspects of our life.
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Unfolding the principles of genome folding and dynamics in bacteria
Remus Dame
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Implementation of the EU Preventive Restructuring Directive Part I
In 2019 hebben het Europees Parlement en de Raad de Richtlijn Preventieve Herstructurering (2019/1023) aangenomen, die voorziet in minimale harmonisatie van onder andere preventieve herstructureringskaders (preventive restructuring frameworks, 'PRF'). Dit boek biedt verdiepende analyses van de implementatie…
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Cognitive enhancement: Toward the integration of theory and practice
Cognitive enhancement is het gebruik van elke methode of techniek met als doel het verbeteren van cognitieve prestaties.
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The Progression of EU Law: Accommodating change and upholding values
Wat is de institutionele dynamiek van de goedkeuring van wetgeving inzake de interne markt?
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SAPPAO - Optimizing the flight times of airplanes using data science
Met het SAPPAO-project willen we de voorspelling van geplande vluchten nauwkeuriger en betrouwbaarder maken. De volledige naam van het project is ‘A Systems Approach towards Data Mining and Prediction in Airlines Operations’.
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The Sand Motor - Building with Nature to optimise coastal protection and other ecosystem services
How can mega sand nourishments, such as the Sand Motor, be designed and managed for optimal ecosystem services provision ?
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Development of novel anti-cancer strategies utilizing the zebrafish xenograft model
In this thesis, we will utilize embryonic zebrafish tumour models to understand the interaction between engrafted human cancer cells and macrophages from the host, test drug administration modalities and anti-cancer efficacies of newly-developed PDT and PACT compounds, and test a light-triggered liposomal…
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methyltransferases as modulators of lipid metabolism and inflammation and the relevance for atherosclerosis
Acute cardiovascular clinical events such as myocardial infarction and cerebral stroke represent the major cause of death in Western societies. These pathologies are primarily resulting from atherosclerosis, a progressive condition characterized by the accumulation of lipids, immune cells, and fibrous…
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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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Explicit Computation of the Height of a Gross-Schoen Cycle
Arithmetic geometry concerns the number-theoretic properties of geometric objects defined by polynomials. Mathematicians are interested in the rational solutions to these geometric objects.
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Hydrodynamics and the quantum butterfly effect in Black Holes and large N quantum field theories
Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?
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Young suns and infant planets: Probing the origins of solar systems
Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).
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Impact of insect herbivory and microbial inoculants on the rhizosphere microbiome and volatilome
This thesis aims to investigate the effect of tripartite interaction between microbial inoculants, the plant, and herbivore insects on the rhizosphere microbiome and volatilome. We investigated the rhizosphere microbiome and volatilome of tomato plants exposed to insect herbivory and/or inoculated with…
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The spin evolution of accreting and radio pulsars in binary systems
Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.
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Investigations on the role of impaired lysosomes of macrophages in disease
The research described in this thesis combines the latest insights in lysosomal function with lysosome centred cell signalling.
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mechanisms underlying inflammation and infection control: insights from the zebrafish model
This thesis focuses on the role of chemokine receptors CXCR3 and CCR2 in the inflammatory process and infection control using the zebrafish model.
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Unraveling the auxin mechanism in 2,4-D induced somatic embryogenesis in Arabidopsis thaliana
Promotor: P. J. J. Hooykaas, Co-promotor: R. Offringa
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Insights into microtubule catastrophes: the effect of end-binding proteins and force
For each living organism health is ensured by correct functioning of its cells. Cells therefore have elaborate methods for regulation of their proteins.
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The innate immune response against mycobacterial infection: analysis by a combination of light and electron microscopy
Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn Co-promotor: Dr. M.J.M. Schaaf
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Social network and radical innovation: evidence from the U.S. pharmaceutical and biotechnology industry
Innovation plays an essential role in firms' competitiveness and long-term success. It varies from different types, ranging from run-of-the-mill innovation that brings incremental changes to existing technologies to radical innovation that breaks from existing trajectories.
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The tension between nature conservation and economic valuation of ecosystem services
Promotores: G.R. de Snoo, W.T. de Groot, Co-promotor: C.J.M. Musters
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Selectivity and competition between the anodic evolution of oxygen and chlorine
Sustainable energy from wind and solar is most readily available near the sea.
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Impact of nitrogen fertilization on the soil microbiome and greenhouse gas emission
The use of N fertilizers has increased worldwide in the past century. While this increased input of N has increased food productivity, it has also contributed to decreases in biodiversity, soil quality and environmental health, including increases in greenhouse gas emissions.
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Deepening the uncertainty dimension of environmental Life Cycle Assessment: addressing choice, future and interpretation uncertainties.
LCA has become an important method to study environmental impacts of human activities. Still, there are several methodological issues in LCA that can adversely affect the results reliability.
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T-CYCLE EPR: Development at 275 GHz for the study of reaction kinetics & intermediates
A difficulty of studies on chemical kinetics are the reaction time scales and detection of their intermediates.
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Suzan van de Velde
Faculteit Archeologie
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Prying eyes on radio skies: pushing the high-resolution low-frequency frontier with LOFAR
In this thesis we push the boundaries of high-resolution imaging at radio frequencies between 100 and 200 MHz. Using the International LOFAR Telescope that spans across Europe we achieve sub-arcsecond angular resolution.
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Learning class-imbalanced problems from the perspective of data intrinsic characteristics
The class-imbalance problem is a challenging classification task and is frequently encountered in real-world applications. Various techniques have been developed to improve the imbalanced classification performance theoretically and practically.
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On the random-matrix theory of Majorana fermions in topological superconductors
The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.
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Towards thermo- and superlubricity on the macroscopic scale: from nanostructure to graphene and graphite lubrication
The thesis describes experimental steps towards reduction of friction on the macroscopic scale by scenarios of thermo- and superlubricity well-known on the nanoscale.
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Islam en samenleving
Kennis van moslimsamenlevingen is onmisbaar om in een geglobaliseerde wereld te kunnen functioneren en om onze eigen Nederlandse maatschappij goed te begrijpen. In Leiden verdiepen onderzoekers zich in de talen, cultuur, religie, rechtssystemen en geschiedenis van moslimsamenlevingen en zetten daarmee…
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Allosteric modulation and ligand binding kinetics at the Kv11.1 channel
Promotor: Prof.dr. A.P. IJzerman, Co-Promotor: L.H. Heitman
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The structure of a working catalyst: from flat surfaces to nanoparticles
Promotor: Prof.dr. J.W.M. Frenken
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The quantification of growth hormone secretion : application of model-informed drug development in acromegaly
Growth hormone profiles are pulsatile and highly variable between individuals, limiting the implementation of mathemathical models to quantify an individual's secretion.
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Disrupting the transcriptional machinery to combat triple-negative breast cancer
Triple-negative breast cancer (TNBC) is a subtype of breast cancer characterized by limited treatment options and unfavorable clinical outcomes. Therefore, the research described in this thesis focused on the exploration of novel targeted therapies for TNBC.
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Exploring the chemical space of post-translationally modified peptides in Streptomyces with machine learning
The ongoing increase in antimicrobial resistance combined with the low discovery of novel antibiotics is a serious threat to our health care.
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Aspects of the analysis of cell imagery: from shape to understanding
In this thesis, we have studied cell images from two types of cells, including pollen grains and the immune cells, neutrophils. These images are captured using a bright field microscope and a confocal microscope.
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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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The diverse roles of integrin α3β1 in cancer: Lessons learned from skin and breast carcinogenesis
In this thesis, we aim to shed light on the diverse and often opposing roles of integrin α3β1 in cancer.
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Development of new chemical tools to study the cannabinoid receptor type 2
The endocannabinoid receptors CB1R and CB2R are involved in a plethora of processes, and consequently are involved in many pathological conditions. Their wide distribution makes the CBRs both an interesting therapeutic target and hard to study.
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Witnessing the Process of Bacterial Cell Death: Novel Antimicrobials and Their Mechanisms of Action
This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…
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Bridging the gap between physics and chemistry in early stages of star formation
A dense region of a gaseous and dusty cloud collapses to form a protostar surrounded by a disk and an envelope. This thesis uses both observations and models to study physical and chemical conditions of these protostellar systems which are likely where planets start to form.