Waseda University

Feasibility and effects of a multicomponent program incorporating esports on physical and cognitive function among older adults: A non-randomised pilot trial

Background Esports (competitive and organised video gaming) may enhance physical and cognitive health in older adults. The aim of this study was to examine the feasibility and effects of a multicomponent program incorporating esports on physical and cognitive function in communit...

On the $L_{1}$ maximal regularity in the study of free boundary problem for the compressible fluid flows

In this paper, we consider the Stokes equations with non-homogeneous free boundary conditions, which are obtained by the linearization procedure of the free boundary problem of the Navier–Stokes equations describing the viscous compressible fluid flows. We prove the $L_{1}$ maxim...

Development of Hamiltonian for Structural Applications by Quantum Annealing Assuming Finite Element Method

ABSTRACT Quantum annealing is emerging as a practical tool for large‐scale combinatorial optimization. We map continuum displacements and element densities to binary variables, turning both deformation analysis and topology optimization into quadratic unconstrained binary optimiz...

H I Absorbers as Beacons of Hidden Structure at z ~ 3: Multi-Component, Metal-Rich Absorption System near a Protocluster

Abstract H i gas traces the large-scale structure and provides the primary fuel for star formation. High-z protoclusters are ideal laboratories to study how H i gas is accreted and consumed during the formation of the most massive structures in the Universe. However, much remains...

Coseismic dislocation creep and recrystallization in a shallow carbonate-hosted active fault

Identifying coseismic deformation along shallow faults is crucial for assessing seismic hazards associated with surface rupture and ground shaking, yet unequivocal evidence of seismic slip in carbonate-hosted faults remains uncertain. Active normal faults on Miyako Island in the...

Renormalization of a 1d quadratic Schrödinger model with additive noise

The study is devoted to the interpretation and well-posedness of the stochastic NLS model (ı∂t−Δ)u=|u|2+B˙,u0=0,t∈R,x∈T, where B˙ stands for a space-time fractional noise with index H=(H0,H1) in a subset of (0,1)2. We first establish that in the situation where 0<2H0+H1≤2, the eq...

Autonomous Vehicles, Urban Deployment, and Welfare Effects

ABSTRACT This paper provides a theoretical analysis of the effects of autonomous vehicles (AVs) on the spatial structures of future cities. We consider two types of AVs, private AVs (PAVs) and shared AVs (SAVs). We assume that AVs have a lower marginal travel time cost than human...

Robust Adaptive Koopman MPC Under Structured and Stochastic Uncertainty for Soft Continuum Robots

Soft continuum robots exhibit highly nonlinear and configuration-dependent dynamics, making accurate trajectory tracking challenging under model uncertainty and external disturbances. This paper presents an adaptive Koopman-based model predictive control (MPC) framework for a ten...

Skin displacement and velocity contribute to perception of force direction: insights from illusory tactile pulling sensations

Abstract Humans perceive tangential force at the fingertip through skin deformation characterized by kinematic components, such as displacement, velocity and acceleration. However, their respective contributions to the perception remain unclear because these components typically...

δ2-Protocadherins organize parallel indirect basal ganglia circuits

Abstract The basal ganglia (BG) contain multiple parallel neural circuits, each of which may control different behaviors. However, how the distinct parallel BG circuits are molecularly organized is not known. Here we show that two δ2-protocadherins (PCDHs), PCDH17 and PCDH10, whi...

Age-Related Behavioral Changes Across the Adult Lifespan of a Cricket: A Longitudinal Analysis Using DeepLabCut

<title>Abstract</title> Aging in insects is characterized by progressive behavioral changes, including declines in locomotion, altered sleep, and disrupted circadian rhythms. The two-spotted cricket ( <italic>Gryllus bimaculatus</italic> ) is a useful model for behavioral senesce...

Three-Dimensional Real Contact Area at the Tire–Asphalt Interface Revealed by Synchrotron X-Ray CT

Abstract Tire and road wear particles are considered a major source of microplastic pollution globally, necessitating a deeper understanding of friction and wear mechanisms at the tire–road interface. A key parameter governing these phenomena is the real contact area; however, to...

Occlusion-Robust Cattle Pose Estimation for Precision Livestock Monitoring Using Hierarchical Locality Refinement

Accurate cattle pose estimation is important for precision livestock farming because body landmarks can provide quantitative visual inputs for potential health monitoring, behavior analysis, lameness assessment, and welfare evaluation. This study focuses on keypoint-localization...

Neuromuscular Activation Strategies of the Lower Limb During Maximal Sprinting in Youth Track and Field Athletes: Age-Related Differences and Implications for Talent Identification

Sprint performance improves throughout adolescence as a result of both structural and neuromuscular development. In particular, increases in body height, lower limb length, and muscle volume have been consistently linked to improvements in sprint performance. However, allometric...

Predictive processing as a scalable computational principle for embodied multitask intelligence

Humans exhibit remarkable flexibility in adapting to diverse and uncertain environments—a hallmark arising from the brain’s ability to integrate multimodal sensory streams into coherent predictive models. Drawing on this principle, we introduce a scalable hierarchical multimodal...

Psychological profiles of readiness for advance care planning in super-aged Japan

Advance care planning (ACP) helps ensure that future medical care reflects individuals’ values and preferences. However, little is known about how multiple psychological characteristics combine to shape readiness for ACP, particularly in Japan. This study aimed to identify psycho...

Associations between jump-derived mechanical indicators and sprint performance across sprint sections in baseball players

The purpose of this study was to examine the relationships between sprint performance across discrete distance sections and mechanical indicators derived from ballistic and reactive jumping tasks in male collegiate baseball players. Sixty-two players performed maximal 40-m sprint...

Genome analysis of the glycosphingolipid-producing green alga Tetraselmis sp. NKG400013

Abstract Microalgae are gaining attention as sustainable resources for the production of valuable compounds, including biofuels, pigments, and bioactive metabolites. To support metabolic engineering and genome editing approaches aimed at enhancing these traits, high-quality genom...

Precision Greenhouse Rose Phenotyping from UAV Imagery Using a Multi-Source Dataset and Lightweight BloomRoseNet

Accurate detection of blooming roses and flower buds is essential for greenhouse phenotyping, cultivation scheduling, harvest planning, and yield management. However, UAV-derived greenhouse imagery presents major challenges because rose targets are often small, densely distribute...

Interpretable multi-label prediction of institution-defined IgA nephropathy clinical patterns using routine cross-sectional clinical and laboratory data

IgA nephropathy (IgAN) clinical heterogeneity leads to inconsistent documentation of multiple, institution-specific pattern labels, creating an imbalanced multi-label phenotyping challenge. We developed an interpretable hybrid model, the Bidirectional Long Short-Term Memory-Convo...