Tea in the Historical Context of East Asia: Cultural Interactions across Borders

(Translated: Jenine Heaton) Session statement 4: Tea viewed from the comparative culture and cultural interactio

Development of an epileptic seizure prediction algorithm using R–R intervals with self-attentive autoencoder

Epilepsy is a neurological disorder that may affect the autonomic nervous system (ANS) from 15 to 20 min before seizure onset, and disturbances of ANS affect R–R intervals (RRI) on an electrocardiogram (ECG). This study aims to develop a machine learning algorithm for predicting focal epileptic seizures by monitoring R–R interval (RRI) data in real time. The developed algorithm adopts a self-attentive autoencoder (SA-AE), which is a neural network for time-series data. The results of applying the developed seizure prediction algorithm to clinical data demonstrated that it functioned well in most patients; however, false positives (FPs) occurred in specific participants. In a future work, we will investigate the causes of FPs and optimize the developing seizure prediction algorithm to further improve performance using newly added clinical data

Tea and Tea Culture in the Cultural Context and Comparison of East Asia

　東アジアの核地域（中国，朝鮮，日本，琉球，ベトナム）では，非常に長期に亘って茶飲が行われ，それぞれの文化伝統に根ざした茶飲文化が発展してきた。本稿は，文化のハードとソフトの相関性（ 1 ．現代社会における茶飲の軽便化， 2 ．9-10世紀の茶器（中国・越州窯製品など）の輸出期にともなう茶飲文化の伝播， 3 ．17-18世紀の煎茶文化の世界的普及），茶産業が起こした文化変化，言葉と茶あるいは茶器の関係，茶導入時の在地文化の反応，茶と宗教あるいは儀礼，女性とお茶などをテーマに，東アジア各地域を中心に一部は東南アジアやヨーロッパも含めて行った文化比較論である

Beam injection with a pulsed sextupole magnet in an electron storage ring

We have developed a new beam injection system with a single pulsed sextupole magnet (PSM) at the photon factory storage ring (PF ring) in the High Energy Accelerator Research Organization. We demonstrated beam injection with this system and succeeded in storing a beam current of 450 mA, which is the normal operating beam current of the PF ring. Top-up injection was also achieved. Coherent dipole oscillation of the stored beam and fluctuation of photon intensity observed at synchrotron radiation beam lines during the PSM injection became very small compared with a pulsed bump injection system that is normally used in the beam injection at the PF ring. This experiment is the first demonstration of beam injection using the PSM in an electron storage ring