Full counting statistics for SU(N) impurity Anderson model

We analyze the full counting statistics of a multiorbital Kondo effect in a quantum dotwith the SU(N) symmetry in the framework of the renormalized perturbation theory. The current probability distribution function is calculated for an arbitrary dot-site Coulomb repulsion $U$ in the particle-hole symmetric case. The resulting cumulant up to the leading nonlinear term of applied bias voltages indicates two types of electron transfer, respectively carrying charge $e$ and $2e$, with different $N$-dependences. The cross correlation between different orbital currents shows exponential enhancement with respect to $U$, which directly addresses formation of the orbital-singlet state.Comment: 1 figure, 1 table, 5 page

Type 2 Diabetes Mellitus with Diabetic Gastroparesis and Occasional Liver Dysfunction Treated by Low Carbohydrate Diet

Diabetes mellitus (DM) has wider neurological complications. They include upper gastrointestinal (GI) symptoms, impaired motility, impaired gastric emptying (GE) and diabetic gastroparesis (DG), which are usually found. The patient was a 64-year-old man with type 2 diabetes (T2D) for 22-years. The patient weighed 74 kg with body mass index (BMI) 23.6 kg/m2, hemoglobin A1C (HbA1c) 9.2%, ankle brachial index (ABI) 1.19/1.23, AST 25 U/L(7-38), ALT 23 U/L(4-44), GGT 48 U/L(<86), Chest X-P normal, and electrocardiogram (ECG) negative. When the patient was treated with low carbohydrate diet (LCD), a significant reduction in body weight and HbA1c was observed. Abdominal computerized tomography (CT) revealed multiple gall stone, dilated common bile duct and impaired GE, indicating DG. For endoscopic examination, much food residue was found in the stomach due to DG after 13 hours fasting. Treatment for DG was initiated by mosapride citrate hydrate. During clinical progress, occasional liver dysfunction was observed twice associated with elevation of AST 196 U/L, GGT 373 U/L and without symptoms, indicating cholestasis-type dysfunction. Some possible triggers may be involved in these episodes, such as gall stone, enlarged volume of stomach due to DG, overeating, overdrinking, and other factors. This impressive report will hopefully become a reference for developing diabetic practice and research

Associations between Comorbidities and Acute Exacerbation of Interstitial Lung Disease after Primary Lung Cancer Surgery

Acute exacerbation (AE) of interstitial lung disease (ILD) is a severe complication of lung resection in lung cancer patients with ILD (LC-ILD). This study aimed to assess the predictive value of comorbidities other than ILD for postoperative AE in patients with LC-ILD. We retrospectively evaluated 68 patients with LC-ILD who had undergone lung resection. We classified them into two groups: those who had developed postoperative AE within 30 days after resection and those who had not. We analyzed patient characteristics, high-resolution computed tomography findings, clinical data, pulmonary function, and intraoperative data. The incidence of postoperative AEs was 11.8%. In univariate analysis, performance status (PS), honeycombing, forced vital capacity (FVC), and high hemoglobin A1c (HbA1c) levels without comorbidities were significantly associated with postoperative AE. Patients were divided into two groups according to cutoff levels of those four variables as determined by receiver operating characteristic curves, revealing that the rates of patients without postoperative AE differed significantly between groups. The present results suggested that preoperative comorbidities other than ILD were not risk factors for postoperative AE in patients with LC-ILD. However, a high preoperative HbA1c level, poor PS, low FVC, and honeycombing may be associated with postoperative AE of LC-ILD

Impressive clinical course of diabetic patient with various medical problems and remarkable improvement by insulin degludec and liraglutide (Xultophy)

Diabetes mellitus causes macrovascular, microvascular angiopathy, and increased cancer risk. Authors et al. have continued clinical practice and research on diabetes cases. Current case is impressive 79-year-old female with various diseases. They include asthma and COPD, steroid intake for years, sleep apnea syndrome (SAS), Continuous Positive Airway Pressure (CPAP) therapy, tongue cancer, arteriosclerosis, bone complications, Carpal tunnel syndrome (CTS), and so on. When she developed hyperglycemia with 9.0% of HbA1c, Xultophy® was started. It contains insulin degludec and liraglutide which is Glucagon-like peptide-1 receptor agonist (GLP-1 RA). HbA1c values decreased as 7.9%, 7.3%, 6.9%, 6.5% in 1-4 months, with remarkable effect. The satisfactory efficacy may be from double agents of Xultophy® or probable secondary diabetes due to continuation of steroid of the case. This report will be expected to be some reference in the future diabetic research development

Charge order with unusual star-of-David lattice in monolayer NbTe2

Interplay between fermiology and electron correlation is crucial for realizing exotic quantum phases. Transition-metal dichalcogenide (TMD) 1T-TaS2 has sparked a tremendous attention owing to its unique Mott-insulating phase coexisting with the charge-density wave (CDW). However, how the fermiology and electron correlation are associated with such properties has yet to be claried. Here we demonstrate that monolayer 1T-NbTe2 is a new class of two-dimensional TMD which has the star-of-David lattice similarly to bulk TaS2 and isostructural monolayer NbSe2, but exhibits a metallic ground state with an unusual lattice periodicity root19xroot19 characterized by the sparsely occupied star-of-David lattice. By using angle-resolved photoemission and scanning-tunneling spectroscopies in combination with first-principles band-structure calculations, we found that the hidden Fermi-surface nesting and associated CDW formation are a primary cause to realize this unique correlated metallic state with no signature of Mott gap. The present result points to a vital role of underlying fermiology to characterize the Mott phase of TMDs.Comment: To be published in Physical Review

Seasonal changes in HbA1c values from young to elderly diabetic patients

Background: Current research has focused on the seasonal changes in HbA1c at the age of 21-90 years old. Subjects and methods: Subjects were 96 patients with type 2 diabetes mellitus (T2DM). Methods include the classification of group A, B, C by the age with 21-50, 51-70, 71-90 years old. HbA1c values in median were calculated for five consecutive seasons from December 2017 to February 2019. Results: BMI value in 3 group A, B, C was 29.7, 24.7, 25.3, respectively. Basal HbA1c was 7.0%, 7.1%, 7.1%, in 3 groups, respectively. Seasonal changes in HbA1c are as follows: group A showed highest in the summer, group B showed highest in the spring and gradually decreased to the winter, and group C showed gradual decrease and lowest in autumn. Discussion and conclusion: Seasonal changes would be probably from i) working generation with fatigue for persistent hot climate in group A, ii) rather stable daily life with balanced work and rest for the home in group B and C, iii) hot climate from spring to summer may be involved in the changes. Current investigation does not include multiple related factors. Further research will be expected for clarifying various factors

Surface-termination-dependent electronic states in kagome superconductors AV3Sb5 (A = K, Rb, Cs) studied by micro-ARPES

Recently discovered kagome superconductors AV3Sb5 (A = K, Rb, Cs) exhibit exotic bulk and surface physical properties such as charge-density wave (CDW) and chirality, whereas their origins remain unresolved. By using micro-focused angle-resolved photoemission spectroscopy, we discovered that AV3Sb5 commonly exhibits two distinct polar surfaces depending on the termination; electron- and hole-doped ones for the A- and Sb-termination, respectively. We observed that the kagome-derived band shows a clear splitting in the A-terminated surface while it is absent in the Sb-terminated counterpart, indicative of the polarity-dependent CDW at the surface. Close comparison of the band-dependent splitting reveals that the three-dimensional CDW structure of the K-terminated surface is different from that of the Rb- or Cs-terminated surface, suggesting the diversity of the CDW ground state. These results provide important insight into the origin of CDW in kagome superconductors AV3Sb5.Comment: 10 pages, 8 figure

Real-time chirality transfer monitoring from statistically random to discrete homochiral nanotubes

Real time monitoring of chirality transfer processes is necessary to better understand their kinetic properties. Herein, we monitor an ideal chirality transfer process from a statistically random distribution to a diastereomerically pure assembly in real time. The chirality transfer is based on discrete trimeric tubular assemblies of planar chiral pillar[5]arenes, achieving the construction of diastereomerically pure trimers of pillar[5]arenes through synergistic effect of ion pairing between a racemic rim-differentiated pillar[5]arene pentaacid bearing five benzoic acids on one rim and five alkyl chains on the other, and an optically resolved pillar[5]arene decaamine bearing ten amines. When the decaamine is mixed with the pentaacid, the decaamine is sandwiched by two pentaacids through ten ion pairs, initially producing a statistically random mixture of a homochiral trimer and two heterochiral trimers. The heterochiral trimers gradually dissociate and reassemble into the homochiral trimers after unit flipping of the pentaacid, leading to chirality transfer from the decaamine and producing diastereomerically pure trimers

X-ray diffraction study of spontaneous strain in superconducting Ba0.6 K0.4 BiO3

金沢大学理工研究域数物科学系The lattice parameter of Ba0.6 K0.4 BiO3, which is a well-studied conventional superconductor, was measured by the X-ray Rietveld method between 10 K and room temperature. A very small change in the lattice parameter could be detected in the superconducting phase. The change could be attributed to a spontaneous strain generated in the superconducting phase by the coupling between a superconducting order parameter and the strain. Previously published data on Y Ba2 Cu3 O6.5 and MgB2 were analyzed, and the present results were compared with our previously obtained results on La1.85 Sr0.15 CuO4. It was concluded that this coupling phenomenon is common to all superconductors. © 2010 Elsevier Ltd. All rights reserved

Trojan Horse Method experiments with radioactive ion beams

The Trojan Horse Method (THM) is an indirect method that allows to get information about a two body reaction cross-section even at very low energy, avoiding the suppression effects due to the presence of the Coulomb barrier. The method requires a very accurate measurement of a three body reaction in order to reconstruct the whole kinematics and discriminate among different reaction mechanisms that can populate the same final state. These requirements hardly match with the typical low intensity and large divergence of radioactive ion beams (RIBs), and experimental improvements are mandatory for the applicability of the method. The first reaction induced by a radio activeion beam studied by applying the THM was the 18F(p,α)15O. Two experiments were performed in two different laboratories and using different experimental set-ups. The two experiments will be discussed and some results will be presented