コーヒーミーティング過去ログ
2018-10-19
Positive flat functions cannot be positive forever (via differentiations)
児玉 大樹 (数理創造プログラム 客員研究員 / 東北大学 材料科学高等研究所 (AIMR) 助教)
We remark that there is no function on [0,1] which is flat at 0 such that the derivatives f^{(n)} of any order is positive on (0,1].
2018-08-24
On the unsolved mystery of biological clock
黒澤 元 (数理創造プログラム 研究員 / 理化学研究所 開拓研究本部 (CPR) 望月理論生物学研究室 研究員)
In 2017, the Nobel Prize in Physiology or Medicine was awarded to three scientists who studied the genetic mechanisms for our daily rhythm (so-called, biological clock). The rhythm is thought to govern the timing of sleep and, to possibly influence the efficacy of some important drugs. In this coffee meeting, I would roughly sketch out the unsolved mystery of biological clock which might be tackled by mathematical sciences.
2018-07-13
Boolean networks and their biological, social, and mathematical problems
森 史 (Theoretical Biology Laboratory, RIKEN)
2018-06-22
A perspective on conformal field theory from Hyperbolic geometry
多田 司 (数理創造プログラム コーディネーター / 理化学研究所 仁科加速器科学研究センター (RNC) 量子ハドロン物理学研究室 副主任研究員)
2018-06-15
About some misuses of statistics in science
Björn Ahlgren (KTH Royal Institute of Technology, Sweden)
2018-06-01
Life and death of a neutron
初田 哲男 (数理創造プログラム プログラムディレクター)
1. What is neutron? 2. How it was born in the Universe. 3. How it survives in the Universe. 4. What is the fate of the neutron? 5. Open questions about the neutron.
2018-05-18
Arithmetic of Words
瀧 雅人 (数理創造プログラム 上級研究員)
Word2Vec, proposed by googlers in 2013, is a nice numerical representation of a set of words. This vectorial representation realizes arithmetic relation between words. I will briefly explain how this representation is constructed, and demonstrate it by using a text of Plato.
2018-05-11
Proposed iTHEMS project in virophysics: A web tool to count infectious virus!
カトゥリン・ボシゥメン (数理創造プログラム 客員主管研究員 / Professor, Department of Physics, Ryerson University, Canada)
I want to propose a fun, simple project for any iTHEMS members to join. The plan is to build a web-based calculation tool which can estimate the concentration of virus in a sample based on some standard measurements.
2018-04-13
Demonstration of VR system for RIKEN Open Day
ジル・フェラン (理化学研究所 開拓研究本部 (CPR) 長瀧天体ビッグバン研究室 研究員)
This will serve as a rehearsal for the ABBL booth at RIKEN Open Day. I may start with a short introduction on how it works, and our goals. Then iTHEMS people can try the experience with the guidance of ABBL members.