Tokyo Metropolitan University

On Exponentiality of Automorphisms of $${\textbf {A}}^{n}$$ of Order p in Characteristic $$p>0$$

Abstract Let X be an integral affine scheme of characteristic $$p>0$$ p > 0 , and $$\sigma $$ σ a non-identity automorphism of X . If $$\sigma $$ σ is exponential , i.e., induced from a $$\textbf{G}_a$$ G a -action on X , then $$\sigma $$ σ is obviously of order p . It is easy to...

Aerobic Zinc-Catalyzed Synthesis of β-Nitroalkenes through the Nitration of Alkenes with Potassium Nitrite

Zinc-catalyzed reaction of terminal aryl alkenes with potassium nitrite selectively affords (E)-β-nitroalkenes under air atmosphere. The transformation is promoted by the reaction of potassium nitrite with acetic anhydride in air and proceeds through a zinc-catalyzed radical proc...

Stochastic Cruise Speed Control for Time-Based Metering Under Uncertainty

With the increasing demand for air transportation, implementing safe and efficient air traffic management strategies, such as time-based metering operations, which manage the calculated time over (CTO) at designated fixes, has become essential. These operations rely on precise sp...

Exploiting Acquired Drug Resistance in Pancreatic Cancer through Selective Covalent Targeting of MAP2K4/7

Pancreatic ductal adenocarcinoma (PDAC) is highly lethal and remains largely refractory to targeted therapy despite its near-universal dependence on oncogenic KRAS. Single-agent KRAS inhibitors often fail due to adaptive resistance mechanisms that emerge under pharmacologic press...

Nature of the Localized V 3 d Electrons in Mo- and W-Doped BiVO4 Revealed by Soft X-ray Photoemission and Absorption Spectroscopy

Abstract We have investigated the effects of Mo and W doping on BiVO4 by means of X-ray photoemission spectroscopy (XPS) and X-ray absorption spectroscopy (XAS). The V 2p XPS spectra indicate that the substitution of W6+ and Mo6+ for V5+ induces the formation of V4+ species. In a...

Serum C4/C3 ratio at disease onset predicts end-stage renal disease in microscopic polyangiitis: the multicentre REVEAL cohort

We investigated whether serum complement C3 and C4 levels and the C4/C3 ratio at disease onset were associated with clinical features, renal involvement, and prognosis in microscopic polyangiitis (MPA). Patients were stratified into tertiles according to baseline C3 and C4 levels...

Association between insomnia symptoms and social frailty in community-dwelling adults aged 75 years and older: a cross-sectional study

Insomnia has been associated with frailty; however, its association with social frailty remains unclear, particularly among adults aged 75 years and older. This study aimed to examine the association between insomnia symptoms and social frailty in community-dwelling adults aged 7...

Tool Selection for Detailed Accessibility Analysis Using GTFS Data: The Case of the Yamagata Urban Area

Abstract. Accessibility, the ease of reaching a given destination from a given location, is a key indicator for identifying populations whose quality of life is constrained by limited access to essential goods and opportunities such as medical institutions. In Japanese geography,...

Daily Happiness in Contexts: Associations of Activities, Social Companions, and Humor Use across Two 2-Month Experience Sampling Studies

Abstract Everyday happiness can be described more informatively by considering both the situations surrounding happiness reports and how people engage with and respond to everyday experience over the relevant assessment interval. The present research examined activity–companion c...

MUSUBOU-AR: An Open-Source Geospatial AR Framework for Integrating Public GIS Data, Field Authoring, and Disaster Walking Tours

Abstract. Conventional hazard maps, public GIS layers, and disaster education materials are essential resources for community disaster risk reduction, but they do not always support in-situ spatial understanding during field-based training. This paper presents MUSUBOUAR, a public...

Rectangular vs Hexagonal Grid Tessellation for Spatial Analysis of Invasive Species: A Case Study of Aromia bungii in Saitama, Japan

Abstract. Aromia bungii has established persistent infestations across Saitama Prefecture, Japan, yet the influence of grid tessellation and spatial weight configuration on the detection of infestation clustering patterns remains poorly understood. This study evaluated whether re...

A Pipeline for Low-Cost Wide-Area 3D Mapping Using LiDAR-Equipped Mobile Devices and Open Data

Abstract. The emergence of LiDAR-equipped mobile devices has enabled low-cost 3D point cloud acquisition. However, accurate 3D model reconstruction using such devices remains confined to individual, locally captured scans. This limitation makes wide-area coverage infeasible witho...

Awareness, knowledge, and utilization of Japanese physical activity guidelines among health fitness programmers in Japan

We conducted an anonymous online survey to clarify awareness, knowledge, and utilization of Japanese physical activity (PA) guidelines among certified Health Fitness Programmers who are specialists in exercise guidance for health promotion. Responses were obtained from 415 partic...

FLRSP: privacy-preserving federated learning using randomly selected model parameters

In this paper, the authors propose a method for privacy-preserving federated learning (FL) that uses randomly selected model parameters to update global models. High-quality deep neural network models require a huge amount of training data in general, but model training raises pr...

Time-Temperature-Transformation Diagrams to Navigate the Nucleation and Quenchability of Metastable α-Li₃PS4

α-Li₃PS₄ is a promising solid-state electrolyte with the highest ionic conductivity among its polymorphs. However, its formation presents a thermodynamic paradox: the α-phase is the equilibrium phase at high temperature and transforms to the stable γ-Li3PS4 polymorph when cooled...

Executive summary of the Japanese clinical practice guidelines for tuberous sclerosis complex-associated epilepsy 2025

Purpose Tuberous sclerosis complex (TSC)-associated epilepsy often involves focal epilepsy, infantile epileptic spasms syndrome (IESS), and drug-resistant epilepsy (DRE). This article presents an executive summary of the Japanese Clinical Practice Guidelines for Tuberous Sclerosi...

Long-Range ExcitationEnergy Migration in a CationicBODIPY/Clay Nanosheet Light-Harvesting Antenna

Abstract Natural photosynthetic antennas arrange chromophores at high density without aggregation, concentrating excitation energy at the reaction center with near-unity quantum efficiency. Reproducing this function is a key challenge for delivering light energy to artificial pho...

Architectural Design and Operational Method of a House by Mode-Changing for Environmental Adjustment: A Case Study

Background: Many studies have been carried out using scientific approaches, but the targets are uncertain due to variable environmental and human factors. Therefore, these two factors need to be integrated into modes, which represent combinations of devices in specific statuses....

How Childhood Experiences in Nature Might Influence Adulthood Participation in Nature-Based Recreation

<title>Abstract</title> Participation in activities that occur in natural settings during childhood tends to influence the frequency with which an individual engages in nature-based recreation during adulthood, along with their perceptions of the natural environment in adulthood....

Ag-stripe Formation on the Ni(110) Surface

Ag stripe formation on the Ni(110) surface was studied using scanning tunneling microscopy (STM), low-energy electron diffraction (LEED) and first-principles calculations. Ag forms self-limited one-dimensional stripes with fluctuating edges. The stripes consist of one-dimensional...