1,931 zoekresultaten voor “jaar were space telescope” in de Publieke website
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Comparative biology of common and grey seals along the Dutch coast : stranding, disease, rehabilitation and conservation
Promotores: H.A. Udo De Haes, P.M. Brakefield
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Linking soil microbial community dynamics to N2O emission after bioenergy residue amendments
Vinasse is a major by-product generated by the sugarcane biofuel industry. It is a source of microbes, nutrients and organic matter and often it is recycled as fertilizer.
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Lipid model membrane systems as a tool for unraveling the underlying factors for skin barrier dysfunction
Barrier function is the natural role of the skin. The lipid matrix present in the outermost layer of the skin, the stratum corneum is important for this function.
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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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Molecular and Nano-Engineering with Iron, Ruthenium and Carbon: Hybrid structures for Sensing
Metal complexes and 2D materials like graphene were combined to produce structures that can function as sensors.
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Human-wildlife Interactions in the Western Terai of Nepal
Large carnivores and humans, along with their livestock, have co-existed for thousands of years. However, human population growth and an increase in economic activities are modifying the landscape for large carnivores and their prey.
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Dosing considerations for preterm neonates: from pharmacometrics to clinical practice
Prematurely born neonates require, amongst others, pharmaceutical therapy. Dosing guidelines for these therapies are often based on data from term born neonates or older infants, while these are not necessarily similar to prematurely born neonates.
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Applying data mining in telecommunications
This thesis applies data mining in commercial settings in the telecommunications industry.
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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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A Model Membrane Approach to Elucidate the Molecular Organization in the Skin Barrier
Promotor: J. A. Bouwstra
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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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Nieuw model verklaart extreme straalstromen op alle reuzenplaneten
Voor het eerst kan een internationaal team van wetenschappers onder leiding van de Sterrewacht Leiden en SRON de extreme straalstromen die rond de evenaar van alle reuzenplaneten worden waargenomen met één model verklaren.
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Rubin Observatorium onthult eerste beelden: belangrijk onderdeel van Leidse makelij
Een timelapse van het universum met een hogere resolutie dan ooit tevoren. Dat is het doel van het NSF-DOE Vera C. Rubin Observatorium in Chili, dat op 23 juni zijn eerste beelden van het heelal onthult. Onderzoekers van de Leidse Sterrewacht hebben een belangrijke bijdrage geleverd aan de realisatie…
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Ewine van DishoeckFaculteit der Wiskunde en Natuurwetenschappen
ewine@strw.leidenuniv.nl |
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"Wat dachten ze wel niet?" Open tekstantwoorden gebruiken om constructen in enquête-experimenten te valideren
Lezing
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The impact of sustainable forest management on plant and bird diversity in East Kalimantan, Indonesia
Promotor: G.R. de Snoo, Co-promotor: H.H. de Iongh, C.J.M. Musters
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Macrophages inhibit human osteosarcoma cell growth after activation with the bacterial cell wall derivative liposomal muramyl tripeptide in combination
CONCLUSION: This study demonstrates that human macrophages can be induced to exert direct anti-tumor activity against osteosarcoma cells. Our observation that the induction of macrophage anti-tumor activity by L-MTP-PE required IFN-gamma may be of relevance for the optimization of L-MTP-PE therapy in…
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Monitoring Alzheimer's disease in transgenic mice with ultra high field magnetic resonance imaging
Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia
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Ontdekking studenten blijkt unieke planeet
Op 4 december werd de exoplaneet aan de astronomische wereld gepresenteerd, die eind vorig jaar door drie Leidse studenten onder leiding van Ignas Snellen is ontdekt. Het blijkt een uniek object te zijn, een stuk groter dan Jupiter, en met bijna vijf keer zijn massa.
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Opening academisch jaar
De opening van het academisch jaar 2025-2026 vond plaats op maandag 1 september 2025 in de Pieterskerk.
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Transforming data into knowledge for intelligent decision-making in early drug discovery
Promotor: A.P.IJzerman Co-promotor: A. Bender
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Tautological relations and double ramification cycles with spin parity
In this thesis, we address two problems concerning the tautological rings of the moduli space of curves.
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450 jaar 3 October
Leiden heeft wat te vieren: eerst 450 jaar 3 October en daarna 450 jaar Universiteit Leiden. En dat is geen toeval.
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Core cross-linked polymeric micelles based on polypept(o)ides: from secondary structure formation of polypeptides to functional cross-linking
This thesis aimed to investigate core cross-linked polymeric micelles (CCPMs) and expand their potential for the delivery of hydrophobic drugs and co-factors.
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Copper trispyrazolylborate complexes for ethene detection
Promotor: E. Bouwman, Co-Promotor: S. Bonnet
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Veertig jaar Leidse Milieuwetenschappen
Ze waren 'rotjongens', de actievoerende wetenschappers die 1978 een inmiddels internationaal gewaardeerd ecologisch onderzoeksinstituut oprichtten. Hun verhalen en die van de huidige staf van het Centrum voor Milieuwetenschappen in Leiden staan beschreven in het boek 'Veertig jaar Leidse Milieuweten…
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High-resolution integral-field spectroscopy of exoplanets
This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.
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Growth and Transport properties of (Rare Earth)TiO3 / SrTiO3 interfaces
This thesis presents the results of a study on the interfaces of insulating oxides with and without the insertion of a magnetic layer.
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Chemical biology studies on retaining exo-β-glucosidases
The research described in this thesis centered on retaining exo-β-glucosidases implicated in health and disease, in particular the human inherited lysosomal storage disorder, Gaucher disease (GD).
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Soil and crop management options to improve nitrogen cycling on dairy farms on peat soil
The main research question of this thesis was: Can nitrogen cycling on dairy farms on peat soil in the Dutch Green Heart area be improved by adapting management to the nitrogen supply from soil and by using other grassland species and crops without affecting milk production?
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Understanding functional dynamics and conformational stability of beta-glycosidases
Due to their central physiological roles in living organisms, retaining beta-glycosidases have been the subject of tremendous research efforts to examine their structure/function relation using numerous biophysical and biochemical approaches.
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Cheating belowground interactions
Mycoheterotrophy is a particular mode of life in which plants obtain carbohydrates from their associated fungal partners, instead of by using photosynthesis.
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Towards understanding the toxicity of copper nanoparticles in aquatic ecosystems
Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver
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Towards controlled microneedle-mediated intradermal immunization
Traditionally, vaccines are administered intramuscularly using conventional hypodermic needles, which cause pain and distress. Microneedles are very short needles (smaller than 1 mm) that are practically invisible to the naked eye.
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Discovery and development of inhibitors selective for human constitutive proteasome and immunoproteasome active sites
This thesis describes the design and development of subunit‐selective inhibitors of particular catalytically active subunits of human constitutive proteasomes and immunoproteasomes.
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Quantification in untargeted mass spectrometry-based metabolomics
Promotor: T. Hankemeier, Co-promotor: T.H. Reijmers
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Applications of Natural Deep Eutectic Solvents to Extraction and Preservation of Biomolecules
The recently introduced nature-originated deep eutectic solvents, so-called natural deep eutectic solvents (NADES) are considered as truly green solvents, which composed of natural ingredients found abundantly in organisms.
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444 jaar Universiteit Leiden
In 2019 bestond de Universiteit Leiden 444 jaar. Deze bijzondere leeftijd vroeg om een bijzondere viering, samen met de inwoners van Leiden en Den Haag. In, met en voor de stad.
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450 jaar Universiteit Leiden
De tijd vooruit, dat zijn we al meer dan 450 jaar. Ons lustrum in 2025 was een moment om als oudste universiteit die al eeuwenlang de blik op de samenleving van de toekomst richt, even achterom te kijken. Om onze impact met onderzoek en onderwijs te vieren. En om koers te zetten naar de volgende dec…
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Dutch Studies 40 jaar!
Alumni-activiteit, Lustrum
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Tentoonstellingen over 444 jaar
Terwijl je wacht op je paspoort een tentoonstelling bezoeken? Dat kan t/m 12 mei in het stadhuis van Leiden. In deze tentoonstelling kom je meer te weten over de band tussen de Universiteit Leiden en de stad Leiden. Ook komt er in het stadhuis van Den Haag, later dit jaar, een tentoonstelling over 444…
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100 jaar OCW
Gedeelde identiteit, de vorming van onze jeugd en toekomst, ontwikkeling van wetenschap en techniek: over zulke gevoelige onderwerpen gaat het in het onderzoek naar 100 jaar Ministerie van Onderwijs, Cultuur en Wetenschap (OCW).
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Evolution of Molecular Resistance to Snake Venom α-Neurotoxins in Vertebrates
We have examined sequences from the ligand-binding domain of the nicotinic acetyl choline receptor (nAChR) in 148 vertebrate species. We are in interested in this receptor because the α-neurotoxins of many venomous snakes binds to this receptor in its location at the neuromuscular junction in all ve…
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The versatility of asymmetric aminoethyl-tetrazines in bioorthogonal chemistry
This thesis describes the synthesis, analysis of various tetrazine bearing compounds and use in bioorthogonal chemistry.
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Effects of pesticides on aquatic macrofauna in the field
Promotores: W.J.G.M. Peijnenburg, G.R. de Snoo, Co-promotor: M.G. Vijver
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The role of zebrafish larvae for studying anxiety-like behaviour
The main aim of my Ph.D. thesis is to further explore the value of using early developing zebrafish larvae (up to 5 dpf) as a model to study anxiety-like behaviour and their pharmacological modulation with drugs.
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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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Conductance and gating effects at sputtered oxide interfaces
This thesis explores interfacial conductance and electric field-effects in LaAlO3/SrTiO3 heterostructures.
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The structure of the cytochrome P450cam-putidaredoxin complex determined by paramagnetic NMR spectroscopy and crystallography
Promotor: Prof.dr. M. Ubbink
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The World of Water
The International Course on Water Use and Management in Cagayan Valley The Philippines (2011-2015)