Jun Murakami
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View article: Complexified tetrahedrons, fundamental groups, and volume conjecture for double twist knots
Complexified tetrahedrons, fundamental groups, and volume conjecture for double twist knots Open
In this paper, the volume conjecture for double twist knots are proved. The main tool is the complexified tetrahedron and the associated $\mathrm{SL}(2, \mathbb{C})$ representation of the fundamental group. A complexified tetrahedron is a …
View article: Solar Radiation and Weather Analysis of Meteorological Satellite Data by Tensor Decomposition
Solar Radiation and Weather Analysis of Meteorological Satellite Data by Tensor Decomposition Open
In this study, the data obtained from meteorological satellites were analyzed using tensor decomposition. The data used in this paper are meteorological image data observed by the Himawari-8 satellite and solar radiation data generated fro…
View article: The impact of treatment on the psychological burden of mothers of children with chronic hepatitis C virus infection: a multicenter, questionnaire survey
The impact of treatment on the psychological burden of mothers of children with chronic hepatitis C virus infection: a multicenter, questionnaire survey Open
Mothers of children with chronic hepatitis C virus (HCV) infection experience anxiety about the health of their children. In this study we assessed an impact of treating children with chronic HCV infection on the psychological burden of th…
View article: Guillain-Barre Syndrome After COVID-19 Vaccination: A Secondary Analysis of Domestic Safety Data by the Japanese Government
Guillain-Barre Syndrome After COVID-19 Vaccination: A Secondary Analysis of Domestic Safety Data by the Japanese Government Open
Purpose The purpose of this study was to figure out the risk of Guillain-Barre syndrome (GBS) after coronavirus disease 2019 (COVID-19) vaccination, which has been reported as a rare adverse reaction. Methods Elucidating the characteristic…
View article: Non-semisimple 3-manifold invariants derived from the Kauffman bracket
Non-semisimple 3-manifold invariants derived from the Kauffman bracket Open
We recover the family of non-semisimple quantum invariants of closed oriented 3-manifolds associated with the small quantum group of $\mathfrak{sl}_2$ using purely combinatorial methods based on Temperley-Lieb algebras and Kauffman bracket…
View article: Development of Online Learning Materials for Tensor Data Processing Exercises
Development of Online Learning Materials for Tensor Data Processing Exercises Open
Tensor decomposition is used in a wide range of research fields; however, its theory is difficult to understand. Therefore, basic education is essential when using it in programming. Currently, there are few Japanese universities that prov…
View article: Development of Online Learning Material for Data Science Programming Using 3D Puzzle
Development of Online Learning Material for Data Science Programming Using 3D Puzzle Open
In multidimensional data processing, one of the important data structures is a higher-order tensor or a multidimensional array. In general, the processing related to the higher-order tensor is so complicated that we have been developing un…
View article: A Causal Analysis by Structural Equation Modeling of Sleep Monitoring Sensor Data
A Causal Analysis by Structural Equation Modeling of Sleep Monitoring Sensor Data Open
In this paper, structural equation modeling (SEM) is used to analyze the causal relationship between the level of sleep and the environmental data. The data used for the analysis was obtained by a care support device used in an elderly car…
View article: Clinical and molecular basis of hepatocerebral mitochondrial DNA depletion syndrome in Japan: evaluation of outcomes after liver transplantation
Clinical and molecular basis of hepatocerebral mitochondrial DNA depletion syndrome in Japan: evaluation of outcomes after liver transplantation Open
Background Hepatocerebral mitochondrial DNA depletion syndrome (MTDPS) is a disease caused by defects in mitochondrial DNA maintenance and leads to liver failure and neurological complications during infancy. Liver transplantation (LT) rem…
View article: Non-Semisimple 3-Manifold Invariants Derived From the Kauffman Bracket
Non-Semisimple 3-Manifold Invariants Derived From the Kauffman Bracket Open
We recover the family of non-semisimple quantum invariants of closed oriented 3-manifolds associated with the small quantum group of $\mathfrak{sl}_2$ using purely combinatorial methods based on Temperley-Lieb algebras and Kauffman bracket…
View article: Pyrazolo[4,3-<i>d</i>]pyrimidine Derivatives as a Novel Hypoxia-Inducible Factor Prolyl Hydroxylase Domain Inhibitor for the Treatment of Anemia
Pyrazolo[4,3-<i>d</i>]pyrimidine Derivatives as a Novel Hypoxia-Inducible Factor Prolyl Hydroxylase Domain Inhibitor for the Treatment of Anemia Open
Inhibition of hypoxia-inducible factor prolyl hydroxylase domain (HIF-PHD) promotes erythropoietin (EPO) production by stabilizing the HIFα subunit. Thieno[2,3-d]pyrimidine 8 identified based on X-ray crystal structure analysis was optimiz…
View article: Development of Teaching Tool for Supporting Understanding of Tensor Decomposition Using MacMahon’s Coloured Cubes
Development of Teaching Tool for Supporting Understanding of Tensor Decomposition Using MacMahon’s Coloured Cubes Open
In this paper, we developed tool to learn the calculation process of HOSVD.This tool uses newly created puzzle using some of MacMahon's coloured cubes.The puzzle is represented as the 2D map using the matrix unfolding required to calculate…
View article: In vitro Evaluation of Solute Removal Characteristics in Intermittent Infusion Hemodiafiltration
In vitro Evaluation of Solute Removal Characteristics in Intermittent Infusion Hemodiafiltration Open
Background: In a typical hemodialysis (HD) session, excessive water removal sometimes induces peripheral circulatory failure and a rapid drop in blood pressure. Intermittent infusion hemodiafiltration (I-HDF), a new modality of dialysis th…
View article: Can treatment of malabsorption in Shwachman–Diamond syndrome improve prognosis?
Can treatment of malabsorption in Shwachman–Diamond syndrome improve prognosis? Open
Intractable diarrhea is a rare disease that often results from congenital malabsorption due to congenital defects in luminal and brush border processing, absorption in the intestinal mucosa, or transport into circulation. Shwachman–Diamond…
View article: Clinical practice guidelines for allied disorders of Hirschsprung's disease
Clinical practice guidelines for allied disorders of Hirschsprung's disease Open
Hirschsprung's disease is caused by dysperistalsis and a lack of recto-anal reflex due to aganglionosis of the distal portion of the intestinal tract. This disease is characterized by delayed meconium excretion, abdominal distention, vomit…
View article: Mitochondrial Respiratory Chain Complex I Deficiency Causes Intractable Gastrointestinal Symptoms
Mitochondrial Respiratory Chain Complex I Deficiency Causes Intractable Gastrointestinal Symptoms Open
We report the case of a 13-month-old girl who suffered frequent vomiting, intractable diarrhea, hyperlactatemia, and liver dysfunction. Although the symptoms were treatment-resistant, administration of an enteral nutrition formula containi…
View article: Presentation of knots by a braided Hopf algebra
Presentation of knots by a braided Hopf algebra Open
The fundamental group of a knot complement is called a knot group. A way to present a knot groups is the Wirtinger presentation, which is given by a conjugation action at each crossing of the knot. This presentation is also given by a conj…
View article: Multi-institutional study of a newly developed bioluminescent endotoxin measurement method based on the limulus amebocyte lysate reaction
Multi-institutional study of a newly developed bioluminescent endotoxin measurement method based on the limulus amebocyte lysate reaction Open
透析液清浄化は透析医療の安全性を担保する手段の1つである. 透析液中のエンドトキシン (ET) は強力かつ広範囲な生理活性を有することから, 安全管理を行ううえで重要な指標となる. そこで, 生物発光技術を応用して新たに開発されたET測定法について, 多施設で共通プロトコールを用い, 測定精度および真度の評価を行った. 評価は日本HDF研究会作成のバリデーション指針に準じて, 検量線の有効性, ブランク試験, 反応干渉因子試験, 検出限界, 透析液定量限界について共通プロト…
View article: Combinatorial Decompositions, Kirillov–Reshetikhin Invariants, and the Volume Conjecture for Hyperbolic Polyhedra
Combinatorial Decompositions, Kirillov–Reshetikhin Invariants, and the Volume Conjecture for Hyperbolic Polyhedra Open
We suggest a method of computing volume for a simple polytope $P$ in three-dimensional hyperbolic space $\mathbb{H}^3$. This method combines the combinatorial reduction of $P$ as a trivalent graph $Γ$ (the $1$-skeleton of $P$) by $I-H$, or…
View article: Changes in the ankle-brachial blood pressure index among hemodialysis patients
Changes in the ankle-brachial blood pressure index among hemodialysis patients Open
The ankle-brachial blood pressure index (ABI) is an independent predictor of mortality in hemodialysis patients. In the present study, we investigated the factors that predict changes in the ABI in hemodialysis patients. A total of 61 cons…
View article: Problems in the evaluation of polyvinylpyrrolidone (PVP) elution from polysulfone membrane dialyzers sterilized by gamma-ray irradiation
Problems in the evaluation of polyvinylpyrrolidone (PVP) elution from polysulfone membrane dialyzers sterilized by gamma-ray irradiation Open
Adverse reactions, such as anaphylactoid shock, have been reported to occur frequently with the use of polysulfone (PSf) membrane dialyzers. Polyvinylpyrrolidone (PVP) elution from the membrane may be a key factor in these reactions. In th…
View article: Issue Information ‐ Editorial Board
Issue Information ‐ Editorial Board Open
No abstract is available for this article.
View article: Reidemeister transformations of the potential function and the solution
Reidemeister transformations of the potential function and the solution Open
The potential function of the optimistic limit of the colored Jones polynomial and the construction of the solution of the hyperbolicity equations were defined in the authors' previous articles. In this article, we define the Reidemeister …