267 search results for “number field sieve” in the Public website
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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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Bio Science Park: from empty fields to hip neighbourhood
New housing in old labs and striking architecture for University buildings and high-tech companies, not to mention waterside parks. An exhibition in Oude UB shows the radical changes that are in store for the Leiden Bio Science Park over the coming years.
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Archaeological fieldwork in corona times: bachelor's student Jeroen Huizer's story
Second year BA Archaeology student Jeroen Huizer decided to participate in an excavation this summer, and he is giving us a peek in doing fieldwork under corona restrictions.
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Joost Batenburg
Science
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Into the Darkness: Forging a Stable Path Through the Gravitational Landscape
In this thesis we study the landscape of gravitational models which modify GR by introducing an additional scalar degree of freedom (d.o.f.) to source Cosmic Acceleration.
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The Minor Centres Project
This five year research project aimed to investigate the role of minor central places in the economy of Roman Central Italy.
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A Grammar of Logba (Ikpana)
This book presents a comprehensive description of the grammar of Logba, one of the fourteen Ghana-Togo Mountain (GTM) languages spoken by approximately 7,500 speakers on the South-Eastern frontier of the Ghana-Togo border. It is the outcome of fifteen months research in Logba speaking communities.
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‘I hope to leave a little mark on the field’
Born in Hungary and moved to Austria, András Bárány grew up bi-lingual. It undoubtedly ignited his interest in languages. In Leiden, he now researches ditransitive constructions in over a hundred languages, this way taking another step in untangling some basics of human language.
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Prof. Ton Liefaard speaks in Strasbourg about children’s rights in the field of biomedicine
On 24-25 October 2017, the Council of Europe organized an international conference to celebrate the 20th anniversary of the Convention on Human Rights and Biomedicine (Oviedo Convention).
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Links between cohomology and arithmetic
Promotor: S.J. Edixhoven
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Field school in Kenya gives students experience of collaborative linguistic fieldwork
Descriptions of different languages help us understand what speakers of different languages share worldwide. At the same time, having descriptions of languages available can also change local education and open our eyes to cultural and linguistic diversity. But what if a language has not yet been (fully)…
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2017 QS ranking: Leiden Political Science and International Studies number 1 in Netherlands
Leiden University’s Political Science and International Studies programmes have consolidated their firm academic reputation. In the 2017 QS World University Rankings, Leiden ranks 26th among the most valued institutes worldwide. Within the Netherlands, Leiden has retained the first position.
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Arco Timmermans on NPO Radio 1 on the increasing number of protests
Arco Timmermans, Professor by special appointment of Public Affairs, discusses the current protests in the Netherlands and whether this is a new phenomenon
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The unit residue group
The unit residue group, to which the present thesis is devoted, is defined using the norm-residue symbol, which Hilbert introduced into algebraic number theory in 1897.
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Christa Tobler speaks about general principles in the field of non-discrimination
On 29 and 30 June 2018, a book workshop on the subject of general principles was held in Leicester, UK.
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Exploring hidden villages in colonial and non-colonial landscapes
A project to explore the configuration of different types of settlement and its role in the evolution of landscape, both in pre-Roman times and in the so-called Colonial landscape. We used several techniques of field survey, pottery classification and other non-invasive approaches to the archaeological…
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COVID-19 update regarding the 2021 ‘Egyptology in the Field’ programme
In accordance with the present travel advice issued by Leiden University and KU Leuven concerning student mobility abroad, it is highly unlikely that the ‘Egyptology in the Field’ programme will be able to take place as normal in Egypt during the 2020-2021 academic year
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Joris Larik: New handbook cornerstone for emerging field of comparative foreign relations law
On 13-14 October, Dr. Joris Larik, Assistant Professor for Comparative, EU, and International Law at LUC, took part in the Duke-Pretoria Conference on Comparative Foreign Relations Law. During these two days in the South African capital, draft chapters for the forthcoming Oxford Handbook on Comparative…
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What is the road ahead in the field of preventing violent extremism?
What should policymakers and politicians do to prevent violent extremism? What are the greatest risks posed by the radical left and right? How do ideological media publications that terrorists assemble before attacks, may help to counter extremist narratives? About 30 professionals from all over the…
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From field work by boat to excel sheets: how the corona virus is impacting education
Professor of Ecotoxicology Martina Vijver had planned an eight-week field work course for her students, but the corona virus threw a spanner in the works and Vijver had to come up with a new plan at short notice. ‘Without the help of my own network and that of my colleagues this would have been very…
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Towards Optical Detection of a Single Electron
Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.
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Throwback to the Archaeological Field School of 2022: ‘Excavating is very rewarding’
Back in June, the annual Leiden Archaeology Field School took place in Oss. For a month, every week, a group of 25 first year students gets to learn the ins and outs of a professional excavation. This is what they have been prepared for in the past year. ‘It is very exciting to put all the theory into…
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Torsion points on elliptic curves over number fields of small degree
PhD Defence
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On the 16-rank of class groups of quadratic number fields
PhD Defence
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Arjan Louwen
Faculteit Archeologie
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Group of experts in the field of international child abduction visits the Child Law Department
On 18 October 2017, Leiden Law School was honored to welcome a group of experts upon invitation of Prof. M.R. Bruning, professor of Child Law and head of the Child Law Department of Leiden University, to discuss current and future research projects in the field of international child abduction law and…
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Baetens speaks at Uppsala Symposium on International Investment Law as a Field for Scholarly Research
On 3 June 2016, the Symposium on International Investment Law as a Field for Scholarly Research was organized by Uppsala University, together with the Nordic Network on Investment Law and the Swedish Institute of International Law.
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First Dutch field trials with exotic insect to combat invasive plant
For the first time in the Netherlands, an exotic insect species is released into the wild to combat a harmful plant species. The Japanese knotweed psyllid should offer relief against the rampant Asian knotweed. Suzanne Lommen of the Institute of Biology Leiden coordinates the field trials.
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Prospective science students in vast numbers to Master's Open Day
A screaming wind, a dark grey sky and unexpected rainfall. The visitors of the Master's Open Day of the Faculty of Science had a hard time, but nevertheless came en masse to the Gorlaeus Building: about 750 prospective students and supervisors.
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Professor Ewa Snaar-Jagalska appointed professor in the field of cellular tumor biology
From the 11th of May Ewa Snaar-Jagalska has been appointed Professor in the field of cellular tumor biology within the Faculty of Science at the Institute of Biology Leiden. Her research focuses on the cellular tumor biology and human cancer modeling in zebrafish
- Week 7-8: 17-26 February 2019
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Mike Field’s Leiden Experience: ‘I try to make research teaching and teaching research.’
Mike Field has been at the Faculty of Archaeology since 2008. As a driven archaeobotanist, he is consistantly contributing to the study of plant fossils encountered in many faculty as well as external projects. ‘Flexibility, spontaneity, creativity, these are all parts of being an academic.’
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Yvonne Erkens publishes article on innovation in the field of corporate social responsibility
Throughout the world fundamental labour rights in supply chains are being violated. Since the Rana Plaza disaster in Bangladesh shook the world, we can no longer turn our heads away.
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Remko Offringa appointed Professor in the field of Plant Developmental Genetics
Remko Offringa has been appointed Professor in the field of Plant Developmental Genetics within the Faculty of Science at the Institute of Biology Leiden (IBL) from the 1st of April 2017. Offringa’s research focuses on the role of the plant hormone auxin in controlling plant growth and development,…
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Maartje van de Woude makes an appeal to all Leiden researchers in the field of migration, integration and borders
On 1 February 2018 Professor Maartje van der Woude (professor of Law and Society at the Van Vollenhoven Institute for Law, Governance and Society) became Associate Director of the Oxford-based Border Criminologies Network.
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Gibbs-non-Gibbs transitions and vector-valued integration
Promotor: W. T. F. den Hollander, F. H. J. Redig
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Inducing spin triplet superconductivity in a ferromagnet
Promotor: J. Aarts
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Single-electrolyte isotachophoresis: on-chip analyte focusing and separation
Promotor: Prof.dr. T. Hankemeier, Co-promotores: Heiko van der Linden, Paul Vulto
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Academics and partners from the field together conduct research on young people
What should future education look like? And how can we make sure that young people develop to their full potential as bright and socially-minded adults? These and other questions were at the heart of two of the National Research Agenda's research routes. The first results of the routes were presented…
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People have found new jobs during coronavirus crisis, but in the same field
Some sectors have been hard hit by the pandemic, whereas others have grown. Yet there was no influx of workers from shrinking to growing sectors. This is the conclusion of research by economists from Leiden University. They published their results in the journal Economisch Statistische Berichten.
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From a lecture to a whole day of archaeology field techniques
Until last year the Archaeology Field Techniques programme for first-year students consisted of a number of two-hour lectures. Now they spend a whole day on the programme. Assistant professor Jasper de Bruin is enthusiastic about this new approach. ‘You can do a lot more with the students, and that…
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Lin Jiang
Science
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Erik van Geest
Science
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Amin Moradi
Science
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Goodall: Leiden University Revisited: Celebration Fifty Years of Gombe Field Research in Tanzania in
In November 2010, the LEAD Programme organised a public lecture by Dr. Jane Goodall on Leiden University Revisited: Celebration Fifty Years of Gombe Field Research in Tanzania at the Gorlaeus Laboratory of the Faculty of Science, attracting more than 1.100 students and staff.
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In search of the atoms of mathematics
Combining geometry and number theory. That is what Dr Jan Vonk of the Institute of Mathematics receives a Vidi grant for today. ‘By fusing these two disciplines we may be able to solve a century-old mathematical problem.’
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Mathematician Peter Koymans wins KWG PhD prize
Leiden PhD student Peter Koymans has been declared ‘best mathematics PhD student’ by the Royal Dutch Mathematical Society (KWG). He received the prize at the Dutch Mathematical Congress (NMC) on 24 and 25 April. With his talk about his research into the Cohen-Lenstra conjecture, Koymans left eleven…
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Record number of grants for collaboration with universities outside the EU
Good news for international collaboration: the EU’s International Credit Mobility programme has awarded 163 grants to students and researchers from Leiden University and partner universities in 19 countries outside the EU. The grants are for 19 projects that have arisen from existing partnerships.
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Record number of visitors to Bachelor's Open Day: ‘My mum misses me already’
What can you expect from studying in Leiden or The Hague? Which programme should you choose? Should you join a student association and will you need to find a room? Over 8,000 prospective students showed up at the Leiden University Open Day: a record. Here's what some of them had to say.
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Chemical functionalization of the graphene surface for electrical and electrochemical sensing application
Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.