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447 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

• 
  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

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

  ICT, Organisation

• 
  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

• Research: Points system makes neighbourhoods nicer to live in News - 7 August 2023

  A lot of municipalities work with a points system to encourage construction projects to take biodiversity and creating green areas into account. But this way of working also benefits local neighbourhoods and residents, master's student Marije Sesink discovered. She based her study on The Hague.

• Vidatum: one research management system for all externally funded projects News - 23 September 2025

  With the number of externally funded research projects at the university on the rise and funding bodies setting ever-stricter requirements, it can be challenging to keep track of budgets, deadlines and reporting. The new Vidatum tool makes managing external projects easier for researchers and research…

• Valentina Carraro offers recommendations on strengthening the UN system News - 14 February 2023

  At an international high-level conference, Valentina Carraro, Deputy Coordinator of the interdisciplinary programme Global Transformations and Governance Challenges (GTGC) presented her research on human rights in the UN Human Rights Council and Treaty body systems. One of the most practical recommendations…

• 
  Coen van Hasselt Professor

  Faculty of Science

  coen.vanhasselt@lacdr.leidenuniv.nl | 071 5273266

• 
  Maria Yazdanbakhsh Afdelingshoofd afdeling parasitologie LUMC

  Faculty of Medicine

  m.yazdanbakhsh@lumc.nl | 071 5265067