Osaka University of Economics

Beamstop-free small-angle X-ray scattering for multiscale structure measurement of high-energy-density plasma

The advent of free-electron lasers has enabled in-situ small-angle X-ray scattering (SAXS) measurements of laser-produced high-energy-density plasma at solid density, with nanometer- and femtosecond-scale resolution. Such plasmas generally exhibit gentle density gradients, which...

Interfacial Polarization and Charge Transfer in Al13 Superatom–Organic Interfaces: Role of Frontier Orbital Overlap

Abstract Superatoms (SAs) have emerged as atomically precise building blocks for functional materials; however, their interfacial electronic interactions with organic substrates remain poorly understood, particularly in the absence of ligand protection. While most reported SAs ar...

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...

Regional variability in growth and biometrics of yellowfin tuna in Indian waters

Introduction: Yellowfin tuna, Thunnus albacares , a commercially important pelagic species widespread across the Indian Ocean, plays a critical role in Indian fisheries. Understanding regional variation in biometric and demographic parameters is essential for achieving effective...

Auditing behavioral claims about AI: Two public-data applications

Behavioral claims about AI-mediated platforms often connect an intervention delivered to one actor with responses by another, yet public records may reveal only selected links. We present a prototype, estimand-specific audit that separately evaluates treatment recoverability, ass...

From Instruction to Inheritance: Scaling Robot Learning Through Knowledge Circulation

Robot learning, particularly through vision–language–action (VLA) models, has rapidly improved the ability of robots to execute instructed tasks. However, the current mainstream paradigm of robot learning largely depends on one‐way instruction from humans to robots, lacking a cyc...

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,...

Constrained Minimization for Extracting Unstable Periodic Orbits from Shell-model Turbulence

Developed turbulence represents a canonical example of chaos, whose dynamics can be characterized in terms of invariant solutions embedded within the turbulent attractor. We propose an algorithm for examining such invariant solutions based on a constrained minimization problem. S...

Ultrahigh flow strength in shocked nanopolycrystalline diamond

Extreme pressures and temperatures create conditions that allow even hard and brittle materials to flow plastically. Despite extensive research, the limits of flow strength under such conditions remain uncertain, and the mechanisms driving deformation at the relevant stresses are...

Spatial Control of Spontaneous Orientation Polarization for Efficient Charge Separation in Organic Photovoltaics

ABSTRACT Spontaneous orientation polarization (SOP) offers a unique approach to generating internal electric fields in organic photovoltaics (OPVs). However, in conventional high‐performance OPVs based on bulk heterojunction architectures, the complex nanoscale morphology makes i...

Discovery of an intrinsic non-Hermitian phase transition in a bulk condensed-matter system

Across regular phase transitions, systems remain in thermal equilibrium. However, when a system is driven far from equilibrium, non-Hermitian phase transitions may arise where the dynamical behavior—rather than steady properties—undergoes a qualitative change at a critical, so-ca...

Thiophenol-Based Designer Enzymes for Asymmetric Hydrogen/Deuterium Atom Transfer

Abstract The enantioselective control of short-lived radical species in aqueous media represents a major challenge in modern catalysis. Herein, we report on the design and evolution of a designer enzyme with a genetically encoded thiophenol moiety that enables enantioselective hy...

Ternary Liquid-Crystalline Mixture Showing Broad Antiferroelectric Smectic CA* and Glassy Hexatic Smectic XA* Phases

Abstract A ternary liquid crystalline mixture was designed to obtain a tilted hexatic smectic phase in the glassy state. Structural, electro-optic, and dielectric properties of the mixture are investigated, and selected measurements are also performed for its pure components. In...

Autoparallelity of quantum statistical manifolds in light of quantum estimation theory

In this paper we study the autoparallelity w.r.t. the e-connection for an information-geometric structure called the SLD structure, which consists of a Riemannian metric and mutually dual e- and m-connections, induced on the manifold of strictly positive density operators. Unlike...

Therapeutic Efficacy and Safety of Intraperitoneally Administered 211At-Labeled Gold Nanoparticles for Peritoneally Disseminated Malignancies

Background/Objectives: Peritoneal dissemination of malignancies leads to poor prognoses, and no effective treatment currently exists. The difficulty of treating such malignancies is likely because systemically administered drugs cannot easily target malignant cells in the abdomin...

An empirical assessment of data sharing and computational reproducibility in sociology

Abstract Public sharing of data and analysis code enables independent verification of published findings. While audit studies have examined data and code sharing in psychology, economics and political science, comparable evidence for sociology remains limited. We examine 730 empi...

Multipolar Light-Matter Coupling in Nanostructures: From Ultrafast Radiative Decay to Forbidden Molecular Transitions

We review optical responses in the nano-to-bulk crossover, where bulk translational symmetry no longer applies and the long-wavelength approximation (LWA) often fails. In this regime, the response must be treated nonlocal, and a self-consistent solution of Maxwell’s equations and...

Faithful on Prose, Unanchored on Reasoning: A Position-Domain Calibration of the Jacobian Lens

The Jacobian lens (J-lens) reads which tokens a language model is positioned to verbalize, and its released artifacts are being inherited as defaults. Those artifacts are fitted with a maximum sequence length of 128 tokens, a setting that appears in the distributed configuration...

FidelityEight: Frozen-Protocol Fidelity Measurements of the Distributed Jacobian-Lens Checkpoints

The Jacobian lens ("jlens"), released 2026-07-02 as companion code to the *Verbalizable Workspace* paper, ships with pre-fitted checkpoints for ~36–38 model families. To our knowledge — a bounded-absence claim; see §6 for the search scope — no direct lens-versus-model fidelity me...

Comparative Analysis of Ion and Electron Contributions to Ionospheric Ionization at Auroral and Subauroral Latitudes

Abstract Electron and proton precipitation into the nightside ionosphere is a key process in magnetosphere–ionosphere coupling. Although auroral electron precipitation at –10 keV is traditionally considered the main driver of auroral emissions, recent studies show that keV electr...