Kyushu University

RBD-down stabilization of SARS-CoV-2 spike enhances cross-neutralizing antibody responses by redirecting immunodominance toward conserved epitopes

The continuous emergence of SARS-CoV-2 variants has enabled partial escape from neutralizing antibodies, necessitating frequent updates of vaccine antigens. These observations motivate vaccine strategies that can redirect antibody responses toward conserved regions of the spike (...

Effective attractive and repulsive interactions behind lift synchronization

Abstract Synchronization is a ubiquitous phenomenon in nonequilibrium systems. One intriguing example found in every-day life is lifts installed next to each other, that move closely and arrive almost simultaneously during a busy time. However, the basic mechanism behind this lif...

Two-Scale Coating-Budget Framework for Broadband Sub-6 GHz Transmission Recovery Through Commercial FTO Low-Emissivity Glazing

Low-emissivity glazing reduces heat transfer, but its continuous fluorine-doped tin oxide (FTO) coating attenuates wireless signals. A two-scale coating-budget framework treats coating removal as a cost to minimize inside the patterned window and over the whole pane. A laboratory...

Toward AI-agent-driven particle transport simulations: implementation of AI-assisted workflows for PHITS

Monte Carlo particle transport codes are powerful tools, but their use requires substantial knowledge of input preparation, execution, and result analysis. In this study, we present a code-side strategy for applying existing AI assistants and AI agents to PHITS. Two complementary...

Concentration-Dependent Transition in the Rate-Determining Step of Hydrogen Evolution Driven by Pyridinium-Tethered Mononuclear and Dinuclear Platinum Photocatalysts

Abstract Previous studies on the hydrogen evolution reaction (HER) catalyzed by Pt(II)-based molecular catalysts have often demonstrated a second-order dependence of the HER rate on the catalyst concentration, suggesting the importance of stabilizing dinuclear platinum intermedia...

Development and characterization of low-scattering vanadium nanoparticle targets for short-range interaction searches

We developed high-purity vanadium-based nanoparticle targets for neutron scattering experiments aimed at exploring gravity-like short-range new interactions in the submicron regime. Vanadium and V-Ni nanoparticles were fabricated using top-down and bottom-up methods and quantitat...

Climate warming amplifies coastal hypoxia response to extreme river discharge

Extreme hydrological events are critical drivers of coastal hypoxia, yet their impacts remain poorly constrained under future warming. Coastal oxygen depletion occurs when physical oxygen supply fails to offset biological oxygen demand, with stratification, nutrient enrichment, a...

Pedestrian-level wind environment within the intervening space between elevated towers above a podium: Effects of core geometry and wind direction

An intervening space, which is typically situated between buildings over the podium, has been increasingly incorporated into residential developments, yet its pedestrian-level wind environment (PLWE) remains insufficiently investigated. This study combines wind tunnel experiments...

IL-15 drives antigen-independent increase in granzyme K+B+ CD8 T cells enriched in rheumatoid arthritis joints

OBJECTIVES: CD8 T cells co-expressing granzymes K and B (GzmK + B+) are enriched in the joint compared with peripheral blood and have been implicated in the pathogenesis of rheumatoid arthritis (RA). However, it remains unclear whether the enrichment of GzmK+B+ subsets is specifi...

ANOVATS: a subsampling-based test to detect differences among short time series in marine studies

Assessing marine ecosystems is important for understanding the impacts of climate change and human activity, as well as for maintaining healthy oceans and ecosystems. In marine science, it is common for biologists and geologists to identify regional differences based on expert kn...

Educational Utility of a Full-Skull 3-Dimensional Model for Skull Base Surgery Training.

BACKGROUND AND OBJECTIVES: Skull base surgery requires precise 3-dimensional (3D) anatomic understanding and advanced drilling techniques within a confined operative space. Although cadaveric dissection remains the gold standard for training, its availability is limited. This stu...

In vivo 3D hip kinematics during racket swinging after total hip arthroplasty

Aims Interest in sports participation after total hip arthroplasty (THA) has grown, and some patients return to playing racket sports after THA. However, dynamic hip kinematics and the risk of liner-to-neck contact during racket swinging remain unclear. This study aimed to evalua...

Techno-Economic Analysis of Low-Temperature Alkaline Ammonia Electrolysis Using a Gross Margin Model

Abstract Ammonia has become a promising hydrogen carrier because of its high hydrogen density, established infrastructure, and easier liquefaction compared with hydrogen. Although thermal cracking is currently the main method for extracting hydrogen from ammonia, it is energy int...

SOME RESULTS ON NAIVE TRANSCENDENCE IN THE RING OF INTEGERS MODULO INFINITELY LARGE PRIMES

Abstract This paper presents various transcendence results in the ring of integers modulo infinitely large primes A $\mathcal {A}$ script upper A . In the ring A $\mathcal {A}$ script upper A , one can consider two notions of transcendence. One is based on the notion of finite al...

Bias‐Free Tactile Synaptic Ionogel With Viscoelastic Memory for Biomechanical Monitoring

ABSTRACT Endowing artificial skins with adaptation and sensory memory is essential for intelligent tactile perception. However, conventional transistor‐based neuromorphic systems rely on energy‐intensive, decoupled architectures that fundamentally constrain their structural flexi...

Mechanical Model for Memory Effects of Crack Patterns and Self-Organized Clustering

We propose a mechanical model that incorporates both viscous friction and Amonton–Coulomb-type friction to demonstrate the memory effect of initial conditions. We study coupled equations of motion for particles on the rectangular lattice under the fixed boundary conditions to sho...

Association of Defects and Local Crystallization with Electrical Insulation Degradation in Anodic Tantalum Oxide Films

Abstract Ta2O5 thin films exhibit excellent insulating properties for capacitor-related applications; however, locally formed circular defects can significantly degrade their electrical reliability. In this study, the relationship between the structural characteristics of circula...

The effect of thickness, arch type, and storage duration on the dimensional stability and seating accuracy of 3d-printed implant surgical guides

This study investigated the effects of guide thickness, arch span, and storage duration on the dimensional stability and seating accuracy of 3D-printed implant surgical guides. Forty-eight surgical guides were fabricated using stereolithography (SLA) in partial-arch (PA) and full...

Chtenopteryx canariensis Salcedo-Vargas & Guerrero-Kommritz 2000

are provided.

Description of Aleochara (Xenochara) ichikawai sp. nov., the first confirmed myrmecophilous species of Aleochara Gravenhorst, 1802 from the East Palearctic Region (Coleoptera: Staphylinidae: Aleocharinae)

A new species of the genus Aleochara Gravenhorst, 1802, Aleochara (Xenochara) ichikawai Maruyama, Nozaki & Kamezawa, sp. nov., is described based on specimens collected from nests of the Lasius fuliginosus species group in Japan and the Russian Far East. This species represents t...