Dr. Ludo Waltman and Dr. Nees Jan van Eck from Leiden University’s Centre for Science and Technology Studies will give an LCN2 seminar on November 27th at 16:00 More info
in room HL106, titled 'Bibliometric network analysis: Software tools, techniques, and an analysis of network science at Leiden University'.
We provide an introduction into the research program on bibliometric network analysis at Leiden University’s Centre for Science and Technology Studies (CWTS). We demonstrate two popular software tools for bibliometric network analysis developed at CWTS: VOSviewer and CitNetExplorer. We also discuss the techniques that we have developed for network layout and community detection. Finally, we use bibliometric network analysis to study the field of network science and the contributions made to this field by researchers at Leiden University.
Preliminary LCN2 Seminar Schedule - 2015
March 27, 16:00-17:00, HL214
April 24, 16:00-17:00, HL214
May 29, 16:00-17:00, HL214
June 26, 16:00-17:00, HL214
September 25, 16:00-17:00, HL214
October 30, 16:00-17:00, HL106
November 27, 16:00-17:00, HL106
December 18, 16:00-17:00, HL214
On Tuesday November 24th, professor Robbert Dijkgraaf will unveil a painted version of Einstein’s Field Equation on Museum Boerhaave’s outside wall. This launches a series of at least ten Physics More info
formulas to be visualized on walls throughout the historic city center. All will have a direct connection to Leiden science. Einstein coined his equation exactly 100 years ago as the mathematical foundation for his theory of general relativity. The so-called cosmological constant was added later, after discussions with Leiden’s Willem de Sitter.
Physicists Sense Jan van der Molen (LION) and Ivo van Vulpen (NIKHEF) initiated the idea to put Leiden’s scientific history in the spotlights, next to its rich history in the humanities, already emphasized by the omnipresent wall poems. The city has an enormous scientific heritage and is the birth ground of many famous and widely used physical formulas. In addition to the Einstein Field Equation, the Leiden people will e.g. be inspired by Snell’s law (refraction of light), Huygens’ pendulum law, the Lorentz contraction formula (theory of special relativity), Van der Waals’ equation of state (thermodynamics), the Ehrenfest Theorem (Quantum Mechanics), the Oort constants (Oort cloud) and the electron spin formulas.
All formulas will be designed and painted by Ben Walenkamp and Jan Willem Bruins of Stichting TEGEN-BEELD, who already enriched the city with over a hundred wall poems.
The project is supported by Leiden municipality, Leiden University’s Science Faculty, the Gorterstichting and the Lorentzfonds.
What: Unveiling Einstein wall formula by Robbert Dijkgraaf
When: Tuesday November 24th at 15:45
Where: Museum Boerhaave, Lange St. Agnietenstraat 10, Leiden
project, or have obtained their PhD degree after January 1st 2013. They are challenged to submit a good, coherent, fluently written article of 2,000 words on their Physics research (dissertation).
A jury, consisting of members of the editorial board of the journal, will prepare a proposal for the three best submissions. The editorial board will ultimately decide who the winners will be. The three best submissions will be published in the Dutch Journal of Physics (NTvN). Additionally, the winning authors will obtain a cash prize: first prize 1000 euro, second prize 750 euro and third prize 500 euro. The prizes will be awarded on 8 April during FYSICA 2016 in Nijmegen, the annual meeting of the NNV.
theoretical physics master student with an outstanding thesis. Schakenraad, now member of Luca Giomi’s group at the Leiden physics institute, developed a model to help biophysicists analyze experimental data on DNA research.
Scientists study mechanical properties of DNA strands by stretching them. To zoom in on the actual genetic code—the base letters—biophysicists fluorescently label letters so they can trace them. However, these labels influence the mechanical properties of the DNA strand. During his master’s at the Eindhoven University of Technology, Schakenraad designed an analytical model that corrects for any influence of the labels.
After obtaining his master’s degree, he received a Leiden/Huygens fellowship to continue his work on bio-mechanics in Leiden and carry out theoretical research on cell morphology. ‘I got a phone call from the chairman of KHMW to let me know I won,’ says an excited Schakenraad. ‘I knew that my previous supervisor had nominated me, but I had no idea if I’d have a chance to win.’