コーヒーミーティング過去ログ
2019-02-15
GRB Correlations for GRB Cosmology and machine-learning analysis
マリア・ジョヴァンナ・ダイノッティ (理化学研究所 開拓研究本部 (CPR) 長瀧天体ビックバン研究室 客員研究員)
2019-01-18
Stochastic and deterministic controls in ageing process
Yukinobu Arata (Cellular Informatics Laboratory, RIKEN)
Animals are born after a miraculous embryogenesis, and after the birth, they age and eventually die. Basically, ageing is considered as a “wearing out” process of biological systems. However, such a strong self-organizing force during embryogenesis would draw us to think why animals do not live forever based on the force? To scientifically approach this thought, we can set several questions; 1) what kind of statistical laws the “wearing out” process is governed by, 2) how much deterministic controls are involved in the ageing process, 3) how much we can predict or artificially manipulate our lifespan? To address these questions, I have been preparing for a recording system for motions and physiological change of a tiny multicellular animal, C. elegans at video rate during their lifespan (~20 days). This recording system will generate unprecedentedly long time series data in Biology. In this meeting, I would like to discuss which existing mathematical frameworks developed in Physics and Mathematics can be applicable for these Biological issues, and would like to discuss the limit of the mathematical frameworks.
2018-12-07
A physicist's adventure into the field of Ergonomics
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)
In this talk, I will present the key results of the paper I co-authored on this topic: Modelling endurance and resumption times for repetitive one-hand pushing by Linda M. Rose, Catherine A. A. Beauchemin & W. Patrick Neumann, Ergonomics, Volume 61, Issue 7, Pages 891-901, 2018.
2018-11-09
Spin hydrodynamic generation: A new power generation at nanoscale
松尾 衛 (University of Chinese Academy of Sciences, China)
In this talk, I would like to introduce a new power generation using the electron as a nanoscale spinning gear. Electron, the most common elementary particle to us, is spinning perpetually since the beginning of the universe and the spinning motion is the origin of the magnetism. Recently we discovered interconversion mechanism between the electron’s spinning motion and electric power, and experimentally demonstrated it using liquid metal flow. We believe this will be a power source of nanorobots in the future.
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.