University of Tsukuba

Hydrogen-bonded supramolecular assembly of didodecylmelamine and thymine at the air/water interface studied by heterodyne-detected vibrational sum frequency generation

Langmuir monolayers of didodecylmelamine (2C12mela) on thymine aqueous solutions were studied by in situ heterodyne-detected vibrational sum frequency generation (HD-VSFG) spectroscopy. The HD-VSFG spectrum of the monolayer on a 10 mM thymine aqueous solution exhibited a positive...

Orbital-Selective Coexistence of Interlayer Spin-Singlet Formation and SDW Order with Anomalous Spin Reconfiguration in Bilayer Nickelate La 3 Ni 2 O 7 Revealed by 17 O-NMR

The spin structure of the spin density wave (SDW) order in the bilayer nickelate La 3 Ni 2 O 7 has been investigated using site-selective 17 O-NMR measurements on the inner apical O(1), outer apical O(2), and planar O(3,4) sites. Below T SDW (= 150 K), the peak of all planar O(3,...

Radionuclide Speciation in the Chornobyl NPP Cooling Pond Bed Following Drawdown

Abstract The cooling pond (CP) at the Chornobyl nuclear power plant (ChNPP) is one of the most heavily contaminated radioactive water bodies in the Chornobyl exclusion zone (ChEZ). This study investigates the geochemical behavior of irradiated nuclear fuel particles (FPs) and ass...

Relationship between objective sleep efficiency and psychological distress in middle-aged and older Japanese: Results by work in the Shika study

Sleep quality and work, as factors related to psychological distress, have not yet been elucidated. Additionally, few studies have examined the association between sleep efficiency and psychological distress, which may affect psychological distress in middle-aged and older adults...

Dual northward overseas radiation from Japanese islands shaped the phylogeography of North-East Asian tree frog

The tree frog Dryophytes japonicus has a broad geographic distribution in northeastern Asia, comprising two major genetically divergent clades whose geographic boundary is located within the Japanese mainland. However, the evolutionary and adaptive mechanisms underlying this wide...

ROS function during the early phase of vascular regeneration in Arabidopsis.

When vascular tissues are damaged, plants induce site-specific formation of vascular stem cells that proliferate and differentiate into xylem and phloem, restoring vascular continuity. In addition, reactive oxygen species (ROS) are rapidly generated at wound sites in response to...

Understanding and Supporting Online Discussion with Opinionated Chatbots

Opinionated chatbots are increasingly present on online platforms and have the potential to shape public discourse by influencing individuals’ viewpoints before they engage in discussions. Despite their growing presence, the impact of interacting with opinionated chatbots on subs...

Anyone Can Dock: an online molecular docking tool for everyone

Molecular docking predicts how small molecules bind to protein targets, but performing a docking calculation has traditionally required software installation, command-line scripting, and manual molecular preparation. Anyone Can Dock is a ready-to-use online platform developed to...

Grain-boundary-induced Fe2CrNi-like ordering in austenitic stainless steels revealed by DFT-based Ising optimization

Predicting segregation behavior in concentrated multicomponent systems remains challenging due to strong solute–solute interactions and vast configuration space. Here, we show that in austenitic Fe0.8 − xCr0.2Nix (x = 0.075–0.15) stainless steels, segregation at a low-energy Σ5(2...

Real-time PEMFC diagnosis using electrochemical impedance spectroscopy under limited data conditions

In proton-exchange membrane fuel cells (PEMFCs), output voltage fluctuates based on the internal state. Therefore, evaluating fuel cell conditions is crucial for controlling operating parameters and maintaining an appropriate internal state. While electrochemical impedance spectr...

Reorientational dynamics of amino acids in aqueous solution probed by ultrafast optical kerr effect spectroscopy

Reorientational relaxation of a solute in aqueous solution reflects the friction from its surroundings, yet observing this rotational motion solute by solute at the microscopic level is difficult. Ultrafast optical Kerr effect (OKE) spectroscopy can follow molecular reorientation...

Impact of adjuvant chemotherapy on renal impairment patients following radical nephroureterectomy in upper tract urothelial carcinoma: a multicenter retrospective study

Abstract To evaluate the impact of adjuvant platinum-based chemotherapy (AC) on oncological outcomes in high-risk upper tract urothelial carcinoma (UTUC) patients with postoperative renal impairment following radical nephroureterectomy (RNU). Among 1050 patients who underwent RNU...

Macroscopic and microscopic visualization of Pseudomonas syringae pv. tabaci infection using complementary bioluminescent and fluorescent reporter systems

Abstract The development of bioluminescent and fluorescent reporter systems has enabled visualization of plant-pathogenic bacterial infection dynamics, providing insights into detailed mechanisms of infection and potential applications for disease control. Pseudomonas syringae pv...

Effects of eye movement training on balance and ocular motor function in community-dwelling Japanese school-aged children: a pilot study using a single-group intervention

Eye-movement training (ET) has been proposed as a way to support balance, but its feasibility and long-term effects in children are unclear. We evaluated a 24-week home-based ET program, delivered via the SUKUBARA® video system, in community-dwelling school-aged children, focusin...

LUIDA: Large-scale Unified Infrastructure for Digital Assessments based on commercial metaverse platform

Introduction Online experiments using metaverse platforms have gained significant traction in Human-Computer Interaction (HCI) and Virtual Reality (VR) research. However, current research workflows are highly fragmented, as researchers must use separate tools for system implement...

Protest coordination across divisions: brokerage under democratic backsliding in Indonesia

Scholarship on civil society in Asia has often emphasized the structural constraints facing collective action under democratic backsliding. Yet less attention has been paid to the conditions under which fragmented civil society actors can overcome existing divisions and achieve c...

Plasma autoantibodies as novel risk markers for stroke: A nested case-control study of the JPHC study

Background and aims: Recent reports have shown the development of autoantibodies in patients with atherosclerosis. The purpose of this study is to examine whether these autoantibodies are associated with the risk of incident stroke in community-based population. Methods: We perfo...

Development and internal validation of a nomogram for visualising multidimensional correlates of baseline suicide‑attempt history among hospitalized adolescents and young adults with mental disorders

Suicide is prevalent among adolescents and young adults with mental disorders (AYAMD). Identifying factors associated with suicide‑attempt history and characterising risk profiles are essential for targeted suicide prevention in this high‑risk inpatient population. The study incl...

Demographic and clinical characteristics of rapidly progressive glomerulonephritis in renal vasculitis in the Japan renal biopsy registry

This study evaluated the clinical and demographic characteristics of biopsy-proven rapidly progressive glomerulonephritis (RPGN), with histological evidence of renal vasculitis. We focused on five vasculitis-related nephritides: MPO-ANCA, PR3-ANCA, anti-GBM, IgA vasculitis (IgAV)...

Management and Outcomes of Cardiac Sarcoidosis: Insights From the Nationwide MYSTICS Registry

BACKGROUND: Cardiac sarcoidosis (CS) may lead to serious outcomes, but large-scale data are lacking because of its rarity, diagnostic uncertainty, and heterogeneous clinical presentations. Actual management and outcomes, including recurrence, are not well understood. This study a...