The non-existence of right cyclic planar functions of degree pn for n ⩾ 2

AbstractIn this article we show that there exists no planar function of degree pn from a finite group G into an abelian group H which contains a large cyclic subgroup for a prime number p and n ⩾ 2

Filling dependence of a new type of charge ordered liquid on a triangular lattice system

We study the recently reported characteristic gapless charge ordered state in a spinless fermion system on a triangular lattice under strong inter-site Coulomb interactions. In this state the charges are spontaneously divided into solid and liquid component, and the former solid part aligns in a Wigner crystal manner while the latter moves among them like a pinball. We show that such charge ordered liquid is stable over a wide range of filling, $1/3<n<2/3$, and examine its filling dependent nature.Comment: 3 pages 3 figure

Modeling Low Muscle Mass Screening in Hemodialysis Patients

Introduction: Computed tomography (CT) can accurately measure muscle mass, which is necessary for diagnosing sarcopenia, even in dialysis patients. However, CT-based screening for such patients is challenging, especially considering the availability of equipment within dialysis facilities. We therefore aimed to develop a bedside prediction model for low muscle mass, defined by the psoas muscle mass index (PMI) from CT measurement. Methods: Hemodialysis patients (n = 619) who had undergone abdominal CT screening were divided into the development (n = 441) and validation (n = 178) groups. PMI was manually measured using abdominal CT images to diagnose low muscle mass by two independent investigators. The development group’s data were used to create a logistic regression model using 42 items extracted from clinical information as predictive variables; variables were selected using the stepwise method. External validity was examined using the validation group’s data, and the area under the curve (AUC), sensitivity, and specificity were calculated. Results: Of all subjects, 226 (37%) were diagnosed with low muscle mass using PMI. A predictive model for low muscle mass was calculated using ten variables: each grip strength, sex, height, dry weight, primary cause of end-stage renal disease, diastolic blood pressure at start of session, pre-dialysis potassium and albumin level, and dialysis water removal in a session. The development group’s adjusted AUC, sensitivity, and specificity were 0.81, 60%, and 87%, respectively. The validation group’s adjusted AUC, sensitivity, and specificity were 0.73, 64%, and 82%, respectively. Discussion/Conclusion: Our results facilitate skeletal muscle screening in hemodialysis patients, assisting in sarcopenia prophylaxis and intervention decisions

教育的対話能力開発の臨床心理学的研究(1) ― 教育的対話シナリオの事例研究 ―

The aim of this study was to develop a training program based on the "educational dialogue" theory for teachers (Kotani 2000). To achieve this, concepts regarding the "basic factors for educational dialogue," "tri-dimentionalization of dialogue" and the key factors in the therapeutic alliance-forming model in Psychoanalytic Systems (PAS) Theory were operatively defined. Using the analytic framework for these definitions, dialogue scenarios written by school teachers who participated in training programs were qualitatively analyzed. The knowledge thus acquired was useful for the future development of the training program