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535 search results for “weitin systems” in the Staff website

• Mentor-tutor system

  This page provides more information about the mentor-tutor system at Leiden University. What is it? What are its objectives? Where can mentors, tutors, and coordinators find more information and teaching materials?

• Leiden Study System Student success

  Leiden University has a high rate of student success. The Leiden Study System was developed to help students study faster and more effectively. They receive the optimum support while choosing which programme to study and during their studies themselves.

• Report vulnerabilities in the systems Working securely online

  Leiden University devotes a great deal of attention to the security of its systems. Nevertheless there may still be vulnerabilities in our systems. If you discover such a vulnerability, please let us know as soon as possible.

• 
  Piet Hein Graaf Professor

  Faculty of Science

  p.vandergraaf@lacdr.leidenuniv.nl | 31639428917

• The new leave system explained Leave

  Since 1 January 2020 - with the transition to the Dutch Civil Code - the system of writing off leave has changed. When you take leave, the system automatically writes off the hours that fall due first.

• Planned maintenance education systems – 27 - 30 March Announcement - 5 March 2026

  ICT

• 
  Marcel de Jeu Associate professor

  Faculty of Science

  mdejeu@math.leidenuniv.nl | 071 5277118

• 
  Onno van Gaans Assistant professor

  Faculty of Science

  vangaans@math.leidenuniv.nl | 071 5277122

• 
  Martina Chirilus-Bruckner Assistant Professor

  Faculty of Science

  m.chirilus-bruckner@math.leidenuniv.nl | 071 5274837

• Replacement of the evacuation alarm system in the Agora building Announcement - 19 March 2026

  Facility

• 
  Arjen Doelman Professor

  Faculty of Science

  a.doelman@math.leidenuniv.nl | 071 5277123

• 
  Hermen Jan Hupkes Professor

  Faculty of Science

  hhupkes@math.leidenuniv.nl | 071 5275587

• 
  Nicolas Navarre Postdoc

  Faculty of Science

  n.h.navarre@cml.leidenuniv.nl | 071 5272727

• 
  Shana Hepping PhD candidate

  Faculty of Governance and Global Affairs

  s.l.hepping@fgga.leidenuniv.nl | 070 8009500

• 
  Martin Moerings Professor emeritus

  Faculteit der Rechtsgeleerdheid

  l.m.moerings@law.leidenuniv.nl | 071 5272727

• 
  Wenyu Wan Guest

  Faculty of Social and Behavioural Sciences

  w.wan@fsw.leidenuniv.nl | 071 5272727

• 
  Sander Hille Assistant professor

  Faculty of Science

  shille@math.leidenuniv.nl | 071 5277109

• 
  Vivi Rottschäfer Associate professor

  Faculty of Science

  vivi@math.leidenuniv.nl | 071 5277113

• 
  Kristian Rietveld Assistant professor

  Faculty of Science

  k.f.d.rietveld@liacs.leidenuniv.nl | 071 5277038

• 
  Hai Lin Professor by special appointment

  Faculty of Science

  h.x.lin@cml.leidenuniv.nl | 071 5277460

• 
  Oliver Taherzadeh Assistant professor

  Faculty of Science

  o.a.taherzadeh@cml.leidenuniv.nl | 071 5272727

• 
  Aysegül Çelik PhD candidate

  Faculty of Science

  a.celik@cml.leidenuniv.nl | 071 5272727

• 
  Fatemeh Mehrafrooz Mayvan PhD candidate

  Faculty of Science

  f.mehrafrooz.mayvan@liacs.leidenuniv.nl | 071 5272727

• 
  Bartolomeus Häussling Löwgren PhD candidate

  Faculty of Science

  b.j.p.m.haussling.lowgren@cml.leidenuniv.nl | 071 5272727

• 
  Md Faysal Tareq PhD candidate

  Faculty of Science

  m.f.tareq@cml.leidenuniv.nl | 071 5272727

• 
  Alexis de Colnet Postdoc

  Faculty of Science

  a.e.h.de.colnet@liacs.leidenuniv.nl | 071 5272727

• 
  Ben Wielstra Associate professor

  Faculty of Science

  b.m.wielstra@biology.leidenuniv.nl | 071 5275135

• 
  Shruti Jain Postdoc

  Faculty of Science

  s.jain@cml.leidenuniv.nl | 071 5272727

• 
  Willem Meilink PhD candidate / contract

  Faculty of Science

  w.r.m.meilink@biology.leidenuniv.nl | 071 5274882

• 
  Jennifer Anderson PhD candidate

  Faculty of Science

  j.a.anderson@cml.leidenuniv.nl | 071 5272727

• 
  Myfel Paluga

  Faculty of Social and Behavioural Sciences

  m.d.paluga@fsw.leidenuniv.nl | 071 5273451

• 
  Arko Ghosh Assistant Professor

  Faculty of Social and Behavioural Sciences

  a.ghosh@fsw.leidenuniv.nl | 071 5275123

• 
  Mike Slootweg Guest researcher

  Faculty of Science

  h.j.slootweg@cml.leidenuniv.nl | 071 5272727

• 
  Berent Baris PhD candidate

  Faculty of Science

  b.t.baris@cml.leidenuniv.nl | 071 5272727

• 
  José Mogollón Associate professor

  Faculty of Science

  j.m.mogollon@cml.leidenuniv.nl | 071 5277166

• 
  Vlad Andriiashen Postdoc

  Faculty of Science

• 
  Xingni Jiang Guest researcher

  Faculty of Science

  x.jiang@math.leidenuniv.nl | 071 5275265

• 
  Han de Winde Professor

  Faculty of Science

  j.h.de.winde@biology.leidenuniv.nl | 071 5271036

• 
  Zsofia Pilz External PhD

  Faculty of Social and Behavioural Sciences

  z.p.pilz@fsw.leidenuniv.nl | 071 5272727

• 
  Xinpeng Jin PhD candidate / contract

  Faculty of Science

  x.jin@cml.leidenuniv.nl | 071 5272727

• 
  Isabel Siles Asaff PhD candidate

  Faculty of Science

  m.i.siles.asaff@cml.leidenuniv.nl | 071 5272727

• ‘Securing systems is something you do together’ News - 27 May 2021

  Leiden University wants to increase the security of its systems. That is why since 1 May the ‘sneakers team’ has been making many miles through our buildings. This team with various specialists will map all measuring and research systems. Today Roland van Dam introduces himself, he is the project manager…

• Scheduled maintenance educational systems on 27 June Announcement - 19 June 2025

  ICT, Organisation

• Problems heating system Herta Mohr Building Announcement - 17 February 2025

• Lecture series: The Dutch crisis management system News - 4 April 2022

  Are you interested in expanding your knowledge on the Dutch crisis management system? Leiden University is organising a unique lecture series on the subject in collaboration with the Netherlands Institute for Public Safety (NIPV). The lectures will take place on 22 April, 13 May, and 3 June.

• How to make AI systems learn better News - 22 March 2022

  Artificial intelligence systems are smart. They can recognize patterns better than humans, for example. Yet humans are still very much needed. How can you better steer those AI systems? LIACS lecturer Jan van Rijn wrote a book about this together with a number of colleagues. We asked him a few quest…

• 
  Roeland Merks Professor

  Faculty of Science

  merksrmh@math.leidenuniv.nl | 071 5277106

• 
  Roozbeh Siyadatzadeh PhD candidate

  Faculty of Science

  s.r.siyadatzadeh@liacs.leidenuniv.nl | 071 5274799

• TimeEdit Curriculum: new curriculum management system Announcement - 13 October 2025

  Education

• Scheduled maintenance educational systems 25 october Announcement - 14 October 2025

  ICT