750 search results for “black hours” in the Public website
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From Baghdād to Baghpūr: Global Blackness in Medieval Arabo-Asia
Lecture, Research Seminar Europe 1000-1800
- OSCoffee: Close the Black hole - a quick scan of possible academic heritage
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International organisations and the rule of law
International organisations that represent collaborations between States are becoming increasingly more powerful, and they have an increasing impact on our daily lives. For example, the European Court of Human Rights in Strasburg established that minors have a right to legal aid immediately following…
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Beacons of Freedom: Slave Refugees in North America, 1800-1860
This project applies a social-historical approach to examine and contrast various groups of African-American slave refugees who sought freedom within North America between 1800 and 1860. It innovatively distinguishes between different “spaces of freedom” for runaway slaves, namely sites of formal, semi-formal,…
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Commonplace - Photographs from the Drummond-Fyvie Collection and the Ngilima Collection
Commonplace - Photographs from the Drummond-Fyvie Collection and the Ngilima Collection. By Tamsyn Adams and Sophie Feyder.
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Nature in farmland
The Netherlands is not particularly rich in ‘wild nature’. Comparatively, what we have is a lot of intensively used agricultural land. This means that from nature’s perspective there much to be gained by combining the ‘nature’ and ‘agriculture’ functions. Not an easy task in such a densely populated…
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Technologies and social agency of painted plaster in the East Mediterranean Bronze Age
This project explored the role of material culture, in casu painted plaster and its technologies, in expressing dynamic social identities and in forging complex interwoven human relationships in the context of the Middle to Late Bronze Age of the Aegean and East Mediterranean.
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Model-Assisted Robust Optimization for Continuous Black-Box Problems
PhD defence
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A New Feeling of Unity: Decolonial Black Power in the Dutch Atlantic (1968-1973)
PhD defence
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Explorations in History and Globalization
Considering the ways in which the ‘global turn’ is changing the theory and practice of historical disciplines, Explorations in History and Globalization engages with the concept and methodology of globalization, challenging traditional divisions of space and time to offer a range of perspectives on…
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About
Leiden Center for the Study of Ancient Arabia
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Multiple star formation: chemistry, physics and coevality
Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.
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Hunting for the fastest stars in the Milky Way
The high velocity tail of the total velocity distribution of stars provides essential insight into fundamental properties of the Galaxy.
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JWG Leiden
The Jeugdwerkgroep is a national astronomy association for young people who are interested in astronomy. The Leiden section organizes a monthly meeting in the Old Observatory Leiden.
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Valuing lives and deaths: an ethnography of life insurance amongst African Americans in New Orleans
Part of ‘Moralising Misfortune: A comparative anthropology of commercial insurance’, an ERC Consolidator project of Erik Bähre.
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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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Zebrafish embryos and larvae as a complementary model for behavioural research
Promotor: Prof.dr. M.K. Richardson
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Associations and Journals
An overview of Professional Associations and Journals
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Humour and Irony in Dutch Post-war Fiction Film, Peter Verstraten
If Dutch cinema is examined in academic studies, the focus is usually on pre-war films or on documentaries, but the post-war fiction film has been sporadically addressed.
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Giant galactic outflows and shocks in the Cosmic Web
The radio sky harbours both galactic and extragalactic sources of arcminute- to degree-scale emission of various physical origins. To discover extragalactic diffuse emission in the Cosmic Web beyond galaxy clusters, one must image low–surface brightness structures amidst a sea of brighter compact fore-…
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Tuning in to the feedback bassline: revealing the operation of AGNs in galaxy clusters with high-resolution radio observations
Following the Big Bang, structure in the Universe started collapsing under the force of gravity. This resulted in the formation of the first stars, galaxies and clusters of galaxies.
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Dynamics of coupled quantum systems
Thermodynamics is one of the founding scientific pillars that has helped us better understand heat engines, biology, ecosystems, and even black holes. While it fundamentally describes large systems by examining the bulk behavior of their constituents, it is anchored in the statistical equivalence of…
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Colonial and Global History
Colonial and Global History combines a deep curiosity of transcultural processes such as imperialism, (de)colonization, and globalization with critical historical research on regional societies in Africa, Asia, and the Americas.
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Lahabi Lab - Quantum Materials and Devices
Kaveh Lahabi's lab explores the exotic physics of quantum materials, whose underlying physics seems to have more in common with elementary particles and black holes, than ordinary metals and semiconductors.
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Through the magnifying glass
Although nanoparticles are extensively used in various applications like consumer products and have most probably entered the environment, little is known about the effects of these particles on living organisms.
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Network
LeiCenSAA is dedicated to the study of Ancient Arabia and the sharing of knowledge and expertise on this topic. Thefore it aims to collaborate closely with other research in the field.
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Strings and AdS/CFT at finite density
Promotor: Prof.dr. J. Zaanen, A. Parnachev
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The Future of the Dutch Colonial Past: Curating Heritage, Art and Activism
This book provides an overview of critical scholarly reflections on the history of Dutch slavery and colonization, as well as how this translates into critical cultural practices.
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Frontiers of Modern Physics
This is the physics summer school of Leiden University. It is part of the Leiden Institute of Physics (LION). The summer school is intended for Bachelor (BSc) students in physics. It covers topics from quantum matter and optics, to biological & soft matter physics and cosmology and theoretical physics.…
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How the speed demons of the universe tell us something about the Milky Way
They hurtle along at over a thousand kilometres per second: the fastest stars in the Milky Way. PhD candidate Fraser Evans conducted research into these elusive hypervelocity stars and discovered that they have a lot to teach us, about black holes and supernovae, for example.
- LSWK lecture: Black holes as quantum computers and the strange matter of high-temperature super conduction
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Artificial brain helps Gaia satellite catch speeding stars
With the help of software that mimics a human brain, ESA’s Gaia satellite spotted six stars zipping at high speed from the centre of our Galaxy to its outskirts. This could provide key information about some of the most obscure regions of the Milky Way.
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Ignoscens: Neo-colonialism, White Supremacy and the Re-Invention of Blacks in Contemporary ‘African Philosophy'
Lecture
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Rush hour in the Academy Building: record number of PhD defences
A record number of 417 PhD candidates defended their theses in 2016. How many of these were cum laude? What were their propositions? The advantage of dirty nappies, for example. Read about the facts and figures on PhD defences in 2016.
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Algorithm Design for Mixed-Integer Black-Box Optimization Problems with Uncertainty
PhD defence
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Hour of Remembrance
Lecture
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master's mentorship: a practical point of contact and fun online coffee hours
For first-year bachelor’s students, it is a well-known phenomenon: student mentors. These older students help newcomers on their way in small groups. Due to the Covid-19 pandemic, this year the choice was made to set up a mentor programme for new master's students as well. We talked to three student…
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Portrait series Keti Koti
In personal stories, university staff and students with different backgrounds reflect on our colonial and slavery past. How does this history affect the present and the future?
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War Heroes and War Criminals. The Spanish Commanders and their Actions during the First Decade of the Dutch Revolt in Narrative Sources from
How were Spanish commanders fighting in the Low Countries between 1567 and 1577 portrayed in Spanish and Dutch narrative sources during the Eighty Years War?
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Designing 'context-specific' regional innovation policy: a study on the role of regional government in six European regions
Whilst government’s ability to design ‘context-specific’ regional innovation policy is generally assumed to depend on the region’s decision-making power, the aim of this study is to investigate how regional government matters. In order to open up the black box of policy design, the study develops a…
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These Oppressions won't cease: An Anthology of the Political Thought of the Cape Khoesan, 1777–1879
The Khoesan were the first people in Africa to undergo the full rigours of European colonisation. By the early nineteenth century, they had largely been brought under colonial rule, dispossessed of their land and stock, and forced to work as labourers for farmers of European descent.
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Prosecutorial Discretion in International Criminal Justice
On 23 February 2022, Cale Davis defended the thesis 'Prosecutorial Discretion in International Criminal Justice'. The doctoral research was supervised by Prof. C. Stahn en Dr. J.C. Powderly.
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Hierarchical Systems
The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.
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Slave in a Palanquin: Colonial Servitude and Resistance in Sri Lanka
For hundreds of years, the island of Sri Lanka was a crucial stopover for people and goods in the Indian Ocean. For the Dutch East India Company, it was also a crossroads in the Indian Ocean slave trade. Slavery was present in multiple forms in Sri Lanka—then Ceylon—when the British conquered the island…
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Library
The library of the Papyrological Institute is the most complete facility for papyrological studies in the Netherlands.
- Activities
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Queer Salon, bringing together insiders and outsiders
Doctoral research on the history of the critical visitor and their efforts at founding alternative archives including LGBT+-focused, feminist, disability and digitizing projects, resulting in a traveling exhibition on findings (with audio-guides), popular and scholarly article, and a dissertation.
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Catholic Identity and the Revolt of the Netherlands, 1520-1635
Mining the unusually rich diaries, memoirs, and poems written by Netherlandish Catholics, Judith Pollmann explores how Catholic believers experienced religious and political turmoil in the generations between Erasmus and Rubens.
- Leiden Observatory
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Byzantine to Modern Pottery in the Aegean
An Introduction and Field Guide, Second and Revised Edition (15 December 2014)