Research works

Dimensions of discomfort: Exploring smartphone dimensions and its impact on upper extremity musculoskeletal health

BackgroundSmartphones have become essential tools in modern daily life, with usage intensifying in the post-pandemic era. Prolonged and addictive smartphone use has been increasingly associated with Musculoskeletal disorders (MSD) in the upper extremity. Beyond usage duration, de...

Rewriting modulo in diagrammatic algebras and application to categorification

We develop a rewriting theory suitable for diagrammatic algebras and lay down the foundations of a systematic study of their higher structures. In this paper, we focus on the question of finding bases. As an application, we give the first proof of a basis theorem for graded $\mat...

Warped Geometries of Segre–Veronese Manifolds

Abstract. Segre–Veronese manifolds are smooth submanifolds of tensors comprising the partially symmetric rank-1 tensors. We investigate a one-parameter family of warped geometries of Segre–Veronese manifolds which includes the standard Euclidean geometry. This parameter controls...

Two-person zero-sum games without expected utility preferences: a proposal

A solution concept for two-person zero-sum games is proposed with only the Independence axiom assumed of players' preferences. We do not assume Continuity which is critical for many fixed-point theorems. Each player is shown to admit a set of "admissible" strategies assuring mini...

Itō and Itō-Wentzell chain rule for flows of conditional laws of continuous semimartingales: an easy approach

We provide a general Itō-Wentzell formula for a random field of maps on the Wasserstein space of probability measures, defined by continuous semimartingales, and evaluated along the flow of conditional distributions of another continuous semimartingale. Our method follows standar...

Cross-Currency Heath–Jarrow–Morton Framework in the Multiple-Curve Setting

Abstract. We provide a general Heath–Jarrow–Morton (HJM) framework for forward contracts written on abstract market indices with arbitrary fixing and payment adjustments and featuring collateralization in any currency denomination. In view of this, we first provide a thorough stu...

Quantifying temporal changes in the monetary value of forest cultural ecosystem services globally: a meta-analysis

Abstract The world’s forests, and the biodiversity they contain, provide multiple cultural ecosystem services that are essential to people’s well-being. However, interactions between people and forests evolve alongside broader societal and environmental change, raising questions...

Special Lagrangian webbing

Abstract We construct families of imaginary special Lagrangian cylinders near transverse Maslov index 0 or 𝑛 intersection points of positive Lagrangian submanifolds in a general Calabi–Yau manifold. Hence we obtain geodesics of open positive Lagrangian submanifolds near such inte...

The Anchor Shift: Reconstructing Global Exchange Rate Determination—The China-U.S. Yield Spread as a Regime Variable, with Systematic Alternatives to Interest Rate Parity, the Mundell-Fleming Model, and the Triffin Dilemma

Interest rate parity theory predicts that yield spreads determine exchange rates. This paper proposes and validates a "Dual-Anchor Exchange Rate Theory" — the global exchange rate determination system has shifted from a U.S. dollar single anchor to a China-U.S. dual anchor, with...

The Hierarchy of Factors: How Regime Variables Reset Market Pricing—Evidence from Exhaustive Testing Across 15 Global Equity Markets for a Factor Hierarchy Theory

The asset pricing literature has long treated all factors as parallel—inserted into the same linear equation, comparing whose coefficient is larger or more significant. This paper argues that this presumption is wrong and proposes an alternative framework: Factor Hierarchy Theory...

The Unified Field of Spreads: The China-U.S. Yield Spread as a Regime Variable in Global Asset Pricing—On the Hierarchical Structure of Institutional Interfaces and Supplements to Interest Rate Parity, the Triffin Dilemma, and Related Theories

After being identified as a cross-market pricing factor (Tang, 2026), the deeper pricing attributes of the China-U.S. yield spread have yet to be fully revealed. This paper proposes and verifies that the China-U.S. yield spread is not an ordinary pricing factor but a "regime vari...

Testability: The Factor Hierarchy Law and Scientific Methodology for Multi-Factor Complex Systems—Complete Empirical Evidence from Global Asset Pricing, Multi-Dimensional Astronomical Verification, and First-Principles Calibration in Physics

What is the relationship among factors in any complex system driven by multiple quantifiable factors? This paper advances two core propositions. The law proposition—the Factor Hierarchy Law: Factors naturally fall into two tiers. Rule factors determine which set of rules currentl...

Dual Anchors: China-U.S. Factors Jointly Determining Global Gold and Crude Oil Pricing—Systematic Evidence Based on Exhaustive Testing with VIF Constraints

Traditional commodity pricing literature has long anchored gold and crude oil pricing to U.S.-centric variables, leaving China-linked factors systematically excluded from quantifiable pricing frameworks. This study employs a rolling regression framework with a 756-trading-day win...

Interest Rates Without an Anchor: Multi-Window Percentiles, Exhaustive Testing, and the Pricing Logic of the China-U.S. Yield Spread—On the Dual-Anchor Regime and Institutional Interface Theory of Global Asset Pricing

How to determine whether a sovereign bond is “fairly valued” remains an unresolved question in fixed income research. Traditional term structure models focus on the dynamics of yields but do not address where current yields stand in their own history. This paper proposes a valuat...

INDIVIDUAL VARIATION IN INFANT SPEECH PROCESSING: IMPLICATIONS FOR LANGUAGE ACQUISITION THEORIES

To what extent does language acquisition recruit domain-general processing mechanisms? In this dissertation, evidence concerning this question is garnered from the study of individual differences in infant speech perception and their predictive value with respect to language deve...

Co-primeness preserving higher dimensional extension of $q$-discrete Painlevé I, II equations

We construct the $q$-discrete Painlevé I and II equations and their higher order analogues by virtue of periodic cluster algebras. Using particular $k \times k$ exchange matrices, we show that the cluster algebras corresponding to $k=4$ and $5$ give the $q$-discrete Painlevé I an...

Loss of M1 acetylcholine receptor-mediated orexinergic activity contributes to immune dysfunction in experimental sepsis

<title>Abstract</title> <italic>Background</italic>: Sepsis (life-threatening organ dysfunction caused by a dysregulated host response to infection) causes millions of deaths worldwide annually. Sepsis-induced changes in brain regulatory functions remain understudied. Previous wo...

Integrating research and educational practice: perspectives from directors of educational intervention companies

Enthusiasm for an evidence-informed approach towards educational interventions is currently hindered by difficulties integrating research findings into practice. To develop an understanding of current challenges for evidence integration, this qualitative study examined how commer...

The impact of simulation with debriefing on developing clinical competence and performance in paramedicine students

<title>Abstract</title> Introduction Paramedics handle diverse medical and trauma cases, where any lapse in competency can compromise patient safety. Student paramedics must meet high standards set by oversight bodies to protect both the profession and the public. Growing evidenc...

Modulation of neuronal excitability and plasticity by BHLHE41 conveys lithium non-responsiveness

Abstract Many bipolar disorder (BD) patients are non-responsive to lithium. The mechanisms underlying lithium (non-)responsiveness are largely unknown. By using gene-set enrichment analysis methods, we found that core clock gene-sets are significantly associated with lithium resp...