Kyushu University

Complete strategy spaces reveal hidden pathways to cooperation

Understanding how cooperation emerges and persists is a central challenge in evolutionary game theory. However, models of communication often rely on restricted strategy sets, making it unclear whether omitted behaviours alter cooperation. Here, we study the complete deterministi...

Epithelial integration in tissue-engineered oral mucosa using RGDTFI-presenting micropatterned collagen scaffolds

Objective To determine whether presentation of the integrin αvβ3/αvβ5-binding peptide motif RGDTFI on micropatterned collagen scaffolds improves epithelial coverage and stabilizes the epithelial–scaffold interface during fabrication of tissue-engineered oral mucosa (TEOM). Method...

Generalizing molecular design via flexible search space control

Abstract Recent advances in generative artificial intelligence have made in silico molecular design a powerful approach for exploring chemical space toward specific goals. However, despite the need for trial-and-error adjustment of generative strategies and reward formulations, m...

Zealots lower coordination barriers but undermine cooperation in multiplayer games

Abstract How can a small group of committed cooperators shape collective outcomes in social dilemmas? Previous studies have shown that zealots—individuals who always cooperate—can promote cooperation in prisoner's dilemmas. Yet real-world cooperation also involves multiplayer coo...

Mathematical modeling for a primitive form of habituation in an amoeba

Abstract Learning abilities, once thought to be unique to higher animals, have been reported to exist in their primitive form in single-celled organisms. This has triggered a growing interest in carefully examining the nature and mechanisms of the primitive versions of learning a...

Global Cowling Effects in the Sq‐EEJ Current System Under Electrostatic Approximation: Theoretical Simulation

Abstract The solar quiet (Sq) current and equatorial electrojet are widely known as one of the fundamental currents in ionosphere. Although the Sq‐EEJ current system has been extensively investigated, the manner in which Hall and Pedersen current components collectively organize...

A Programmable Nanovesicle Platform for MegapascalPressure Sensing

Abstract Hydrostatic pressure (HP) is a subtle yet pervasive force that shapes chemistry and biology from the ocean floor to living cells─yet real-time HP sensing at the microscale remains elusive. Here, we report pyrene-modified polyionic complex vesicles (Pyr-PICsomes) as a cla...

The Clinicopathological Characteristics and Prognosis of Cholangiolocarcinoma: A Multicenter Study With a Central Pathology Review

BACKGROUND: Cholangiolocarcinoma (CLC) is a rare liver cancer with ≥ 80% ductular configuration (DC). Given its rarity, its clinicopathological characteristics remain poorly understood, and its status as a distinct disease entity remains controversial. We conducted a nationwide m...

The minimal supersymmetric standard model with non-invertible selection rules

Abstract We investigate a framework of the minimal supersymmetric standard model (MSSM) in which the quark and lepton flavor structure and suppression of flavor-changing neutral currents (FCNCs) are governed by non-invertible selection rules. By implementing such non-group-like f...

Do sectarian differences affect support for armed non-state actors? Evidence from survey experiments in Lebanon, Iraq, and Yemen

Abstract Sectarian cleavages are widely seen as central to Middle Eastern conflict, and Iran-backed armed non-state actors (ANSAs)—Hezbollah, the popular mobilization units, and the Houthis—are often portrayed as sectarian militias. Yet there is little empirical evidence that pub...

Peripheral Functionalization of Antiaromatic 5,15-Dioxaporphyrin for the Synthesis of Oligomers

Abstract Partial peripheral functionalization of the antiaromatic nickel(II) 5,15-dioxaporphyrin (NiDOP) was explored to create substituted products suitable as substrates for oligomer synthesis. Syn- and anti-type diaryl-substituted NiDOPs were synthesized from tribromo-substitu...

Enhanced Room-TemperaturePhosphorescence from CarbonDots Embedded in a Robust SiO2 Matrix

Abstract Carbon dots (CDs) represent a rapidly advancing class of fluorescent nanomaterials. Due to the dominant nonradiative decay channels of the triplet excited state of CDs, these materials generally exhibit no observable phosphorescence (PH) or delayed fluorescence. Here, we...

Turbidity currents after the 2024 Noto Peninsula Earthquake and their environmental impacts on the Toyama Deep-Sea Channel in the Japan Sea

Abstract The deep-sea environment before and after the 2024 Noto Peninsula Earthquake was investigated using a series of hydrographic and mooring observations in the Toyama Deep-Sea Channel (TDSC), Toyama Bay. Transient oxygen depletion was observed after the earthquake, and low-...

Role of interfacial contact topology in reduction-dependent molten iron–slag dripping through coke-packed beds

Hydrogen-enriched blast furnace operations change the reduction state and composition of dripping slag; however, its effects on coupled iron–slag flow through coke-packed beds remain insufficiently quantified. Therefore, dynamic multiphase simulations were performed for molten ir...

Spatiotemporal dynamics of the tumor microenvironment in hepatocellular carcinoma during combination immunotherapy

Background: Atezolizumab plus bevacizumab (ATZ/BEV) is a standard first-line therapy for advanced hepatocellular carcinoma (HCC); however, many patients do not achieve meaningful tumor regression. The temporal and spatial immune remodeling associated with ATZ/BEV remains poorly u...

Early detection of foot rot on sweet potato based on auto-fluorescence of phytoalexin

Sweet potato foot rot is difficult to detect at the pre-symptomatic stage because visible symptoms are minimal or absent, whereas conventional approaches are often destructive or unsuitable for rapid screening. In this study, a UV fluorescence imaging workflow was developed for p...

PrismaticNa-Ion Coordination in the Sulfide-ChlorideSolid Electrolyte Enables Fast Na-Ion Transport

Abstract Designing halide solid electrolytes with high ionic conductivity and robust electrochemical stability is crucial for advanced all-solid-state sodium-ion batteries. Currently, most sodium-based halide conductors suffer from the limited ionic conductivity. In this work, we...

Concurrence in Neutron–Proton Scattering for Polarization-Induced Mixed States

We investigate spin entanglement generated in neutron–proton scattering by evaluating the concurrence from the scattered two-nucleon density matrix. While previous studies mainly discussed pure initial spin states, the present work extends the analysis to polarization-induced mix...

Monolithic Porous Polymer Architectures for Visible‐to‐UV Upconversion‐Driven Photochemical Reactions

ABSTRACT Triplet–triplet annihilation‐based photon upconversion (TTA‐UC) expands the accessible spectral window for photochemical transformations by generating high‐energy photons from low‐energy excitation. Although TTA‐UC has been widely demonstrated in solution and in various...

The syntax-phonology interface of Left Branch Extraction

Abstract Locality of dislocation has been one of the central issues in linguistics since Ross’s (1967. Constraints on variables in syntax. Cambridge, MA: MIT dissertation) seminal paper. One of the locality conditions that Ross describes is the Left Branch Condition, which prohib...