982 search results for “immuniteit infection en tolerance” in the Public website
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Francesco Ragazzi, Students as suspects?
Could policies aimed at preventing radicalisation undermine the very trust and social cohesion they aim to strengthen?
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LUGO Podcast: It's Not Easy Being Green
It’s Not Easy Being Green – but we’re here to help! Do you want to live more sustainably but have no idea where to start? Are you interested in making the world greener and do you want to get to the bottom of hot topics? Or are you sceptical about climate change and do you want to hear about the…
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Facilities and services
There’s more to obtaining a bachelor’s or master’s degree than just studying. For example, where can you go for advice, or to let off some steam, practise your favourite sport, stay in shape, socialise, or simply find some peace and quiet? Leiden University can help in all these areas, and more.
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Violence and Violence Prevention
The Research Group 'Violence and Violence Prevention' studies interpersonal violence. We seek to better understand the dynamics underlying interpersonal conflict.
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Engineering innate immunity for therapy
Immune system defends our body against pathogens and cancerous cells, but excessive immunity can in turn lead to tissue damages and diseases. For example, scratching the surface of the eye ignites an immune response that aims at preventing infection but can also lead to edema, angiogenesis and eventually…
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Annemarie Meijer appointed full Professor of Immunobiology
Annemarie Meijer is appointed full Professor of Immunobiology. Meijer’s research focuses on immunobiology and infectious disease. She uses the zebrafish as a model for understanding mechanisms of host immune defense against intracellular bacterial pathogens.
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Leiden cholera epidemics mapped out, literally
Three cholera epidemics struck 19th-century Leiden. Today’s corona epidemic prompted Martijn Storms, curator of maps and atlases at the Leiden University Libraries, to scour the library for maps about these past epidemics.
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Cognitive Emotion Regulation Questionnaire (CERQ)
CERQ is a questionnaire measuring cognitive coping strategies developed by Dr. Nadia Garnefski and Dr. Vivian Kraaij.
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Three things the EU must do to survive
“The union’s 60th birthday is not a moment for gifts and cake, but for reinvention around three new strategic idea. (…) The new Europe must protect, improvise and tolerate opposition”. This is what Prof. Luuk van Middelaa, Professor of Foundations and Practice of the European Union and its Institutions,…
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Koen de Ceuster about North Korea's Winter Olympics propaganda
With the 2018 Winter Olympics in Pyeongchang being over, it can undoubtedly be said that a lot transpired between the both Koreas: the visit of Kim Jong-un's sister to South Korea, the $2.64 million budget from South Korea for members of the North Korean Olympic delegation, and the first time the North…
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Activism, Indigenous Survival, and Settler Colonialism in the Unist’ot’en Camp’s Resistance against the Coastal GasLink Pipeline
Lecture
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New Master’s programme in Transfusion Medicine and Cellular and Tissue Therapies
LUMC and Leiden University will start the new two-year online master's program in Transfusion Medicine and Cellular and Tissue Therapies from October 2023.
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Appropriation foncière, migrations agricoles et conflits armés en Pays Dogon (Mali)
PhD defence
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symbiotisch constitutioneel recht voor de EU: de conceptuele, emotionele en juridische ruimte voor legitieme regionale samenwerking
Inaugural lecture
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Improving the treatment of pathogenic fungi. ‘The process is working, but not that well…’
Fungi germinating in the lungs of patients. Doesn’t sound too nice, does it? Luckily, humans can deal with this normally, and we are able to clear the infection before anything comes to harm. However, in people with health issues, Aspergillosis can cause a lot of damage, especially if the fungus becomes…
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NWO grants two IBL-proposals by interdisciplinary research consortia
Recently, NWO has decided to grant two interdisciplinary research proposals for national and international consortia submitted by researchers from the Institute of Biology Leiden. One of the proposals is led by Prof. dr. Ariane Briegel, the other one by dr. Remko Offringa.
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Clever variant of antibiotic bypasses resistance in bacteria
Biological chemist Nathaniel Martin is going to test an alternative antibiotic that can combat common resistant bacteria such as MRSA. For this purpose, he will receive 350,000 euros from the NWO's NACTAR programme. ‘We want to know how safe and effective our antibiotic is in a realistic situation.’
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The evolutionary added value of sex
Asexual procreation in female wasps leads to an accumulation of genetic mutations, and the shrivelling of their sex organ. Leiden biologist Ken Kraaijeveld published this discovery in Evolution. His research is one of the first experimental studies into the consequences of asexual procreation.
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Improving therapeutic vaccines
Chemist Sander van Kasteren aims to accurately map how our immune system responds to vaccines, particularly those aimed at curing diseases like cancer and chronic viral infections. The goal is to use this knowledge to improve vaccine design. An ERC Consolidation Grant will provide him with the funding…
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New insight into immune cell behaviour offers opportunities for cancer treatment
An international group of scientists has discovered that certain cells of our immune system – the so-called T cells – communicate with each other and work together as a team. To fight an infection they stimulate each other’s growth, but at the same time, they inhibit each other when there is a surplus…
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Different medication dosage for morbidly obese patients
PhD research recently completed by pharmacologist Margreke Brill shows that morbidly obese patients should be given a different dosage of the drugs Cefazolin and Midazolam. This could also apply to other drugs such as anti-cancer drugs as well as antibiotics and Margreke Brill is advocating a change…
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How cholera bacteria make people so sick
The enormous adaptability of the cholera bacterium explains why it is able to claim so many victims. Professor Ariane Briegel from the Leiden Institute of Biology has now discovered that this adaptability is due to rapid sensory changes in the bacterium. Publication in PNAS.
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Nathaniel Martin: why won’t antibiotics cure us anymore?
Current means of fighting bacteria are no longer as good as they used to be because of antibiotic resistance. These days, people are dying from bacterial infections that could have been cured fifty years ago.
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How do you prevent viral outbreaks? By protecting animal health
Many dangerous diseases such as COVID-19, Ebola and Q fever have jumped from animals to humans. But it is not only because of these diseases that we should include animals in our health policy, but also because of their right to health, writes PhD candidate Joachim Nieuwland. PhD defence on 13 May.
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When will there be a coronavirus vaccine?
The genetic code of the new coronavirus has been found: it is closely related to the SARS virus from 2003. Professor of Molecular Virology, Eric Snijder, has been researching coronaviruses for years. We asked him a few questions about the outbreak. ‘It’s still unclear whether this new virus is more…
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Transitie tussen de Romeinse periode en de vroege middeleeuwen in een perifeer gelegen microregio van Noord-Francia
PhD defence
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Jorrit Rijpma: A temporary asylum stop is in breach of European Convention on Human Rights
In the Netherlands, various local VVD parties are calling for an asylum stop. Other political parties, Ja21, BBB, PVV and FvD, also see an asylum stop as the solution to the continuing asylum problems. Earlier, an opinion poll showed that a majority (69 per cent) of the Dutch population agrees. Is an…
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Strict but fair
Guest lecture immigration law by Secretary of State Broekers-Knol On 5 March 2020.
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Zebrafish models for disease and environmental stress
We use zebrafish as a model organism to study human development and disease as well as animal welfare and environmental impact.
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Cyber security
To make digital communication more secure, we need to tighten up the legal frameworks and identify the biggest cyber threats.
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Awards and Grants 2022
An overview of awards and prizes granted to our staff and students in 2022, as well as special appointments at Leiden University and other institutions.
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Research lines
Physics and Engineering Approaches to Biomedicine and Pharmacology
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Formulation and Characterization of Vaccines
Vaccines are an extraordinary category of biopharmaceuticals. They are usually prophylactic and come in many types, from whole bacteria to peptides and nucleic acids. They are very cost effective and almost every human on the planet is vaccinated. The latter mandates that vaccines have to be extremely…
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Resetting the immune system to cure diabetes and rheumatism
In autoimmune diseases such as rheumatism and diabetes the immune system attacks autologous proteins. Leiden researchers are trying to discover how this comes about.
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Depot or place of honour: what to do with Nobel laureates in the museum?
What do you do with a museum collection full of individual white Nobel laureates at a time when diversity, inclusion and teamwork reign supreme? Ad Maas, professor by special appointment, and researcher Hilbrand Wouters have been awarded an NWO Museum grant to answer that question.
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Language and belonging in the 21st century
What does it take to truly be ‘one of us’ and what role does language play in this process? In short, what is the difference between ‘a language we understand’ and ‘our language’? This is the question Professor Terkourafi will address in her inaugural lecture on Friday 20 April.
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Social Science Matters: Out-of-home placement
...What does seem clear, though, is that there is a great deal of room for improvement in the process of out-of-home placement. The FSW's social and behavioural scientists give their views.
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Hetty Cohen-Koster was present at Cleveringa’s speech
'I belong here.' This is what the young Jewish law student Hetty Koster felt when she attended the memorable protest speech given by Professor Cleveringa on 26 November 1940. She managed to survive the war by going into hiding. She married Dolf Cohen, later Rector Magnificus of Leiden University, and…
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Corona Measures
A message from our director
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Book launch “Style en Society in the Prehistory of West Asia – Essays in Honour of Olivier P. Nieuwenhuyse”
Conference, Book launch
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'I am interested in how we simulate ourselves into the future'
It is a known trait in humans to anchor innovations in the past, so as to make new developments easier to accept. It is an aspect of humanity that can also be spotted in classical and prehistoric times. Archaeologist Daniel Turner will investigate the anchoring of monumental building in Greek Prehistory…
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The sky is not the limit: 230 000 people reached by Leiden University educational space project
Science education project Space Awareness engaged 230,000 people in 68 countries with the excitement and challenges of space sciences and technologies. After three years, the project coordinated by Leiden Observatory came to an end in March and has now been evaluated.
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Executive Board column: My concerns about the increased harassment of academics
Academics increasingly face threats, intimidation and abuse. The WetenschapVeilig platform has been launched to address this. Academics who are being threatened or intimidated can seek help from the platform 24 hours a day. It’s good that we now have this platform. But at the same time, it’s awful that…
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2008 Culture and cognition of Palaeolithic hominins
The Palaeolithic period extends from the earliest stone tools (and in Europe, earliest occupation) to the beginning of the current warm period.
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‘In Leiden you feel history is very close’
Leiden alumnus Makoto Yoshida from Japan studied Dutch history and politics from 1996 to 1997. Now he is back in Leiden with his wife who is currently a student at the Faculty of Humanities. Some things still surprise him. 'Everyone at university uses first names, which was - and still is - unacceptable…
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'An international classroom is about opening up to different voices'
There is a lot of discussion about international students and Dutch universities. The Cultural Anthropology and Sociology of Development programme is an international bachelor's programme. Forty per cent of our students come from outside the Netherlands. We ask five students how they feel about studying…
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Bart Custers discusses facial recognition on Nieuwsuur
Despite a lack of specific legislation on this issue, Dutch Minister of Justice and Security Dilan Yeşilgöz is allowing the national police force to experiment with facial recognition technology.
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Jorrit Rijpma on Frontex and Greece’s illegal return of migrants
More and more reports appear in de media claiming that Frontex, the organisation coordinating the joint border control of the European Union, has been helping the Greek coastguard to stop asylum seekers at sea. In doing so, has Frontex endangered the lives of migrants?
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Vaccination certificate: opposition and doubts
The Health Council of the Netherlands has published an advisory report entitled ‘Ethische en juridische overwegingen Covid-19’ (Covid-19: ethical and legal considerations). According to the Council, businesses and organisations may request a vaccination certificate, but can only do so under strict c…
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No definition of extraparliamentary cabinet in The Hague political arena
Following the recent debate on the formation of a new Dutch government, there seems to be no clear definition of an extra parliamentary cabinet. Wim Voermans, Professor of Constitutional Law, discusses this in Dutch magazine ‘Vrij Nederland’ (VN).