# Downloads Mathematical Study Days 2013

You will find different downloads related to the Mathematical Study Days (Goetheanum, October 9-11, 2013) HERE.

# ICCA10 in Tartu, Estonia

The 10^{th} International Conference on Clifford Algebras and their Applications (ICCA10) will take place on August 4–9, 2014 at the University of Tartu, Estonia. The aim of the ICCA10 is to bring together the leading scientists in the field of Clifford algebras and geometry and their various applications in mathematics, physics, engineering and other applied sciences.

Charles Gunn (Technisches Universität Berlin, Germany) and Oliver Conradt (Goetheanum, Section for Mathematics and Astronomy, Switzerland) were both invited to give a plenary talk.

- Charels Gunn:
*Geometric Algebras for Euclidean Geometry* - Oliver Conradt:
*Projective Algebra*

Charels Gunn and Oliver Conradt gave several contributions related to their topics in seminars and conferences of the Section for Mathematics and Astronomy at the Goetheanum.

# International Conference for Teachers of Mathematics at the Goetheanum

The International Confernece for Teachers of Mathematics from October 5th, 2015 until October 9th, 2015 will take place ath the Goetheanum in Dornach / Switzerland. The conference willö be held in English, German and Spanish and is organized in cooperation with the Pedagocical Section, the Youth Section and the Section for Mathematics and Astronomy. MORE

# Paper on bud research

In the framework of the research project *Rhythmical Change of Shape in Mistletoe Berries According to Moon and Zodiac Constellations* by Renatus Derbidge at the Natural Science Section of the Goetheanum a first paper was published in the open access journal PLOS ONE. It presents methods and software to capture and measure the shape changes of mistletoe berries and leaf buds over time. The paper describes the software used to automatize a number of tasks including contour recognition, optimization of fitting the contour via hill-climbing, derivation of the path curves, computation of Lambda and blinding the pictures for the operator. The validity of the program is demonstrated by results from three independent measurements showing circadian rhythm in mistletoe berries. The program is available as open source and will be applied in a project to analyze the chronobiology of shape in mistletoe berries and the buds of their host trees.

Coauthors of the paper are Linus Feiten (Faculty of Engineering, Chair of Computer Architecture, University of Freiburg, Freiburg, Germany), Oliver Conradt (Section for Mathematics and Astronomy, Goetheanum, Dornach, Switzerland), Peter Heusser (Centre for Integrative Medicine, University of Witten/Herdecke, Witten, Germany) und Stephan Baumgartner (Hiscia Institute, Society for Cancer Research, Arlesheim, Switzerland). The paper and further material can be found HERE.

# Compilation of publications

A compilation of publications on themes of the Section for Mathematics and Astronomy is available as pdf document. The overview comprises publications in German as well as in English language. The books, journals and calendars listed were released by various publishing houses and editors, as at April 2013. Further information can be found HERE.

# Section for Mathematics and Astronomy

of the School of Spiritual Science at the Goetheanum, Dornach (CH).

The School of Spiritual Science, Goetheanum, is organized in different Sections, in the sense of faculties. The Mathematical-Astronomical Section is one of currently eleven Sections.

The task of the Mathematical-Astronomical Section includes research and teaching in the field of Mathematics und Astronomy in the sense of the Anthroposophical Spiritual Science as well as the coordination of the collaboration on a local, European and worldwide level.