1,440 zoekresultaten voor “online test” in de Publieke website
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Onderzoek
Het onderzoek van de sectie Gezondheids-, Medische en Neuropsychologie richt zich op de psychologische aspecten van gezondheid en ziekte, en op het ontwikkelen van innovatieve behandelingen.
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Kankercellen onder de loep
Waarin verschilt een tumorcel van een gezonde cel? Die vraag proberen onderzoekers zo precies mogelijk te beantwoorden. Sommige verschillen kunnen dienen als aangrijpingspunt voor nieuwe therapieën.
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Bearing with noise: The effects of highway noise on behaviour and development in zebra finches
Anthropogenic noise negatively affects wildlife in a wide range of taxonomic groups.
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When galaxy clusters collide: the impact of merger shocks on cluster gas and galaxy evolution
Promotor: Prof.dr. H.J.A. Rottgering
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Het miljard deeltjes probleem
Promotor: Prof.dr. S. Portegies Zwart
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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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Dynamics of TNFalpha signaling and drug-related toxicity
In previous studies at our laboratory it was demonstrated that drug exposure of HepG2 cells can lead to an altered TNFα-induced NF-κB oscillatory phenotype, concurrent with a synergistically increased sensitivity for TNFα-induced apoptosis.
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The stochastic geometry of non-Gaussian fields
Promotor: V. Vitelli, Co-promotor: J. Paulose
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Impact assessment modelling of matter-less stressors in the context of Life Cycle Assessment
Promotoren: Prof.dr. G.R. de Snoo en Dr. R. Heijungs
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Chaotic dynamics in N-body systems
Promotor: Prof.dr. S.F. Portegies Zwart
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Suppressing a Sea of Starlight: Enabling technology for the direct imaging of exoplanets
Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik
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The distribution of stellar mass in galaxy clusters over cosmic time
Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: H.Hoekstra
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Understanding the uptake and internal distribution of metallic nanoparticles in Danio rerio larvae
The aim is to discover where differently shaped metal nanoparticles distributes in Danio rerio, linking the distribution with genomic responses and so come up with a Mode of Action.
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Neurodevelopmental risks in young children with an extra X or Y chromosome
Deze longitudinale studie is gericht op ontwikkelingsrisico’s bij jonge kinderen met XXY, XXX, XYY, in de leeftijd van 1 tot 6 jaar. Het doel van het onderzoek is zicht te krijgen op de factoren die bijdragen aan risico op gedragsproblemen en psychopathologie.
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Probing Gravity at Cosmic Scales
The theoretical explanation of cosmic acceleration is nowadays one of the biggest puzzles in cosmology.
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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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Profielwerkstukken
Heb je problemen met het opstellen van een goede onderzoeksvraag? Vind je het lastig goede informatie te vinden? Of kom je net niet uit dat ene belangrijke detail? De Universiteit Leiden helpt jou op weg!
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Development of a Dynamic Substance Stock Model
Making a dynamic substance stock model in order to conduct scenario analyses and make forecasts.
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Phenotypic screening with 3D cell-based assays
Traditional drug discovery approaches have been hampered by (in vitro) cell-culture models that poorly represent the situation in the human body.
- Girls Science Day
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Integrative taxonomy of araneomorph spiders: Breathing new life into an old science
Taxonomy as a science has accumulated data and knowledge for more than 250 years.
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On electronic signatures of topological superconductivity
Promotor: Prof.dr. C.W.J. Beenakker
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The structure of the dusty cores of active galactic nuclei
Promotor: W. Jaffe, Co-promotor: K. Meisenheimer
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Galactic substructures as tracers of dark matter and stellar evolution
One of the most important puzzles in modern astrophysics is the nature of dark matter.
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Ingredients of the planet-formation puzzle
High-angular-resolution observations of the circumstellar material have uncovered numerous and very diverse substructures in protoplanetary discs, raising the question of whether they are caused by forming planets or other mechanisms.
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When data compression and statistics disagree: two frequentist challenges for the minimum description length principle
Promotor: P.D. Grünwald
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Benchmarking Discrete Optimization Heuristics
This thesis involves three topics: benchmarking discrete optimization algorithms, empirical analyses of evolutionary computation, and automatic algorithm configuration.
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Foam rheology near the jamming transition
Promotor: Prof.dr. M.L. van Heck, Co-Promotor: B.P. Tighe
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Onderzoek
Onderzoek van de sectie Methodologie & Statistiek van het Instituut Psychologie aan de Universiteit Leiden
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Nuclear Quantum Effects in Solid Water
Ice, the solid state of water, plays an important role on our planet as well as the entire universe.Despite the fact that an individual water molecule has a very simple structure, its chemical bonding in the solid phase can be surprisingly complex.
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Computational modeling of angiogenesis : from matrix invasion to lumen formation
Promotor: Roeland M.H. Merks
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Basiskwalificatie Taalvaardigheid Engels (BKE)
De Universiteit Leiden heeft het opleidingstraject voor de Basiskwalificatie Onderwijs (BKO) geïntroduceerd en is het voor (universitair) docenten en hoogleraren verplicht/mogelijk geworden een BKO-certificaat te behalen, afhankelijk van moment, omvang en duur van de aanstelling.
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Methods and Tools for Mining Multivariate Time Series
Mining time series is a machine learning subfield that focuses on a particular data structure, where variables are measured over (short or long) periods of time.
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Computational modeling of cellular dynamics in tumor cell migration
Epithelial-mesenchymal plasticity (EMP) and tumor cell migration play an important role in cancer progression, and an improved understanding of the mechanisms underlying these concepts is essential for developing new targeted approaches.
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New polymyxin antibiotics for old problems: addressing nephrotoxicity and resistance
Polymyxins are clinically used antibiotics, discovered in mid-20th century. Once abandoned due to excessive nephrotoxicity, they are now used increasingly to address infections caused by multi-drug resistant Gram-negative bacteria.In this thesis, we describe the development and synthesis of analogues…
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Exploring charge transport properties and functionality of molecule-nanoparticle ensembles
Promotor: J.M. van Ruitenbeek, Co-Promotor: S.J. van der Molen
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Nagtzaam & Van Erkel, ‘Preference votes without preference?’
De politicologen Marijn Nagtzaam (Universiteit Leiden) en Patrick van Erkel (Universiteit van Antwerpen) testen hoe bepaalde opties die kiezers hebben op het stembiljet hun stemgedrag beïnvloeden, met name voor het stemmen op personen.
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Probing cosmic monsters: confronting hydrodynamic simulations with new observations of high-density environments
Galaxies in the Universe are distributed along the intricate framework of the Cosmic Web. Groups and clusters of galaxies comprise the densest regions in this network, and therefore, are excellent cosmic laboratories to study different aspects of galaxy evolution in extreme environments.
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Onderzoek
De programmagroep Leer- en Gedragsproblemen in het Onderwijs doet onderzoek naar stagnaties die kunnen optreden in de cognitieve ontwikkeling.
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The evolution and plasticity of life histories upon variation in nutrition: on aging focused integrative approach
Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)
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High throughput microscopy of mechanism-based reporters in druginduced liver injury
Promotor: B. van de Water
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Het bestrijden van pesten door het versterken van zelf-bekrachtiging
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Topological phases and phase transitions in magnets and ice
The main focus of this thesis is the behaviour of two-dimensional materials, namely (anti)-ferromagnetic materials in the first two chapters, which show topological phases, and energetic square ice in the third and fourth chapter.
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Studying dark matter using weak gravitational lensing : from galaxies to the cosmic web
Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).
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Toll-like receptor signaling in the innate immune system of zebrafish larvae
Promotor: H.P. Spaink, A.H. Meijer Co-promotor: R. Marin-Juez
- Girls Science Day
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Phylogeny and species delimitation within the moss genus Dicranum Hedw.
Promotor: Prof.dr. E. Smets, M. Stech
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Bioengineering and biophysics of viral hemorrhagic fever
Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…
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Het Criminologisch Kwartet
Test je kennis over criminaliteit en de rechtsstaat met dit leuke kaartspel.
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Het Criminologisch Kwartet
Dit kwartet bevat in 80 vensters de essentie van de canon van de Criminologie.