Okinawa Institute of Science and Technology Graduate University

Energy transfer and scale organisation in dense canopy turbulence

This study identifies the scale-dependent processes that sustain turbulence in dense submerged canopy flows. Using a scale-resolved energy budget, we determine where in space and at which scales production, pressure–strain redistribution and inter-scale transfer predominantly occ...

Transposable elements: Drivers of regulatory innovation and adaptation in plants

Transposable elements (TEs) constitute a major fraction of eukaryotic genomes and represent one of the most abundant classes of repetitive sequences in plants. Recent advances in sequencing technologies, together with the increasing availability of telomere-to-telomere and pan-ge...

Directed Laplacian from tracer polarity for connectome models of neurodegenerative spread, with a nonlocal-versus-local correction and clearance as a conditional future aim

Dated research note. The claim is that the next network-diffusion model for prion-like pathology spread on a primate connectome should be a directed graph Laplacian whose edge polarity is taken from tract-tracing data rather than from diffusion MRI, with separate anterograde and...

Parallel Evolution of Bacteroidota as Long-Term Endosymbionts of Insects

Symbiotic relationships significantly transform both symbiont and host biology. The most visible changes include a massive reduction of the endosymbiont genome and the development of specialized host organs, cells, and compartments for symbiont housing. However, insect symbiosis...

Landscape transcriptomics reveals ecological constraints on fish under anthropogenic coastal change

Abstract Urban zones are rapidly expanding worldwide, exposing organisms to complex and multidimensional stressors. However, linking organismal responses to environmental change at ecologically relevant scales remains a major challenge. To investigate the constraints imposed on f...

Spin force from a nitrogen-vacancy ensemble drives a 100-mg levitated resonator

The force experienced by a spin in a magnetic field gradient underlies many proposals for hybrid quantum systems. These include schemes for mechanically mediated quantum gates, spin squeezing, searches for exotic forces, and motional superpositions for probing the interface betwe...

capAItalism: a research program for re-deriving the forces and factors of capitalism under artificial intelligence

This concept note introduces and dates the term capAItalism — capitalism with AI substituted at its core — and states the research program the term names: the primitives from which capitalist economies are derived (exchange, supply, demand; labour, resources, production, capital,...

capAItalism: a research program for re-deriving the forces and factors of capitalism under artificial intelligence

This concept note introduces and dates the term capAItalism — capitalism with AI substituted at its core — and states the research program the term names: the primitives from which capitalist economies are derived (exchange, supply, demand; labour, resources, production, capital,...

Integrated genomic and experimental assessment of the biosafety of Paraburkholderia sacchari as a promising microbial chassis

Abstract Paraburkholderia sacchari is an environmental member of the Burkholderiaceae with recognized biotechnological potential, yet its genomic diversity, biosafety profile, and evolutionary relationship to pathogenic Burkholderia species remain poorly understood. Here, we pres...

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...

Estimation of auroral emission altitude in the region of the ISS magnetic footprint during a relativistic electron precipitation event observed by ISS-CALET

We report a multi-MeV relativistic electron precipitation (REP) event as observed by the CALorimetric Electron Telescope and the Monitor of All-sky X-ray Image aboard the International Space Station, together with low-cost twin all-sky auroral imagers installed at Athabasca, Cana...

Lateralization of retinal structure correlated with behavioral lateralization in the oval squid Sepioteuthis lessoniana

Abstract Background Cephalopods, including Sepioteuthis lessoniana , preferentially orient either the left or right eye toward visual targets during various visually guided behaviors, as most of their visual field is monocular. Such visual lateralization is widely observed in the...

Data for paper: "Ground state of the Hubbard model with spin-dependent linear potential"

This upload includes data shown in Figures 1-20 of the paper "Ground state of the Hubbard model with spin-dependent linear potential", available at arXiv:2604.24068. Also included are scripts to recreate the figures; most of them are scripts for the `gnuplot` program; one of the...

Sugar-responsive regulation of an autophagy initiation factor shapes carbon-starvation sensitivity in Arabidopsis

Abstract Autophagy is a conserved degradation and recycling pathway that sustains cellular homeostasis and provides energy and building blocks under adverse conditions. Despite detailed core machinery knowledge, transcriptional regulation of autophagy initiation in response to ca...

Cold priming reshapes DNA methylation and transcriptional memory in Arabidopsis thaliana

Abstract Stress priming is a critical adaptive mechanism that enables plants to enhance responses to recurring environmental stresses. Although transcriptomic changes associated with cold stress priming have been reported, the underlying epigenetic mechanisms remain largely unkno...

Weil's Rosetta Stone as a correspondence of clocks, not of spaces

Weil's "trilingual text" — number fields, curves over finite fields, Riemann surfaces — is usually read as a dictionary between objects: primes ↔ points, Galois groups ↔ fundamental groups, and in Mazur's 3-dimensional refinement, primes ↔ knots, Legendre symbol ↔ linking number...

A relation between the HOMFLY-PT and Kauffman polynomials via characters

A bstract The HOMFLY-PT and Kauffman polynomials are related to each other for special classes of knots constructed by full twists and Jucys-Murphy twists. The conditions for this relation are articulated in terms of characters of the Birman-Murakami-Wenzl algebra. The latter are...

An asymptotic model for drug dissolution in a standardized flow-through apparatus

Abstract Asymptotic methods are employed to analyse, interpret and improve on an often-used model for the dissolution of drug particles in a standardized flow-through dissolution cell, United States Pharmacopeia Apparatus 4 (USP4). The model is based on a simplified description f...

Metagenomic insights into mechanisms of coral larval settlement induction and inhibition by marine biofilms

Abstract Background Biofilms are essential to larval settlement in many marine invertebrates, yet the mechanisms driving settlement induction or inhibition in corals remain poorly resolved. This challenge lies in the vast taxonomic and functional diversity of marine biofilms, mak...

Experimental study of enhanced flow asymmetry due to viscoelasticity: An assessment of viscoelastic constitutive models

Flow past an asymmetrically confined cylinder of shear-thinning viscoelastic polymer solutions has been experimentally investigated. We show that the flow asymmetry induced by the asymmetric geometry is enhanced at Weissenberg numbers (Wi) above unity; that is, the flow in the no...