Research works

A Method to Generate Multi-interval Pairwise Compatibility Graphs

Enumerating multi-interval pairwise compatibility graphs ([Formula: see text]-IPCGs) is computationally challenging due to the exponential growth in the number of graphs and trees, as well as the infinite search space for weights. Currently, no method exists to enumerate all [For...

On Nonparanormal Likelihoods

Nonparanormal models describe the joint distribution of multivariate responses via latent Gaussian, and thus parametric, copulae while allowing flexible nonparametric marginals. Some aspects of such distributions, for example conditional independence, are formulated parametricall...

On Goncharov's conjecture in next to Milnor degree

Let K be a field of characteristic zero. We prove that its motivic cohomology of weight m and degree m − 1 is rationally isomorphic to the cohomology of the polylogarithmic complex. This gives a partial extension of A. Suslin's theorem describing the indecomposable K 3 of a field...

Isoperimetric profile function comparisons with integral Ricci curvature bounds

We prove comparison results for the Isoperimetric profile function in the setting of manifolds with L p L^{p} integral bounds on the Ricci curvature. We extend previous work of Ni and Wang and Bayle and Rosales under the usual pointwise bounds for the Ricci curvature.

Applying Non-Negative Matrix Factorization with Covariates to the Longitudinal Data as Growth Curve Model

Using Non-negative Matrix Factorization (NMF), an observed matrix is approximated by a basis matrix times a coefficient matrix. When each individual’s coefficient vector is explained by covariates, the coefficient matrix factorizes into a parameter matrix and a covariate matrix—a...

Dirichlet domains for Anosov subgroups

Abstract We introduce a sufficient condition for a finitely generated subgroup Γ of a semisimple Lie group 𝐺 to admit finite-sided Dirichlet domains for polyhedral Finsler metrics on the symmetric space G / K G/K . The condition always implies the Θ-Anosov condition for some Θ, a...

Statistical methods for partitioning ribbon and globally-distributed flux using data from the Interstellar Boundary Explorer

NASA’s Interstellar Boundary Explorer (IBEX) satellite collects data on energetic neutral atoms (ENAs) that can provide insight into the heliosphere boundary between our solar system and interstellar space. Using these data, scientists can construct maps of the ENA intensities (o...

Computational advances and challenges in simulations of turbulence and star formation

Abstract We review recent advances in the numerical modeling of turbulent flows and star formation. An overview of the most widely used simulation codes and their core capabilities is provided. We then examine methods for achieving the highest-resolution magnetohydrodynamical tur...

Water-rich sub-Neptunes and rocky super-Earths around different stars: Radii shaped by volatile partitioning, formation, and evolution

Despite precise characterization measurements, the nature of planets with radii between 2 and 4 Earth radii -- sub-Neptunes -- remains unknown due to degeneracies in interior models. Nevertheless, the field has compiled an impressive ensemble of small planets with measured masses...

FUSED-Net: Detecting traffic signs with limited data

Automatic Traffic Sign Recognition is paramount in modern transportation systems. However, curating large-scale datasets for diverse traffic sign detection remains impractical. In this context, we present FUSED-Net, a novel approach that enhances Few-Shot Object Detection (FSOD)...

Minimal-actuation feather star–inspired soft swimmers for multimodal 3D maneuverability

Complex, three-dimensional (3D) motions typically require actuator arrays and complex control architectures. Here, we present a feather star–inspired soft robotic swimmer that uses only two pneumatic inputs to produce three distinct and switchable swimming modes: jellyfish-like p...

Treatment Outcomes for Gastric Cancer With Positive Peritoneal Lavage Cytology or Localized Peritoneal Metastasis

Importance In the era of modern systemic chemotherapy, the optimal treatment strategy for gastric cancer with positive peritoneal lavage cytology (CY1) and/or localized peritoneal metastasis (P1a) remains controversial. Objective To explore the optimal treatment strategy for pati...

Prehistoric global migration of vanishing gut microbes with humans

The gut microbiome is crucial for health and is affected strongly by lifestyle1. Many microorganisms commonly found in non-industrialized populations are disappearing or have become extinct in industrialized populations2–6. Studying which microorganisms have been long-term reside...

The Gender of Green Revolution Expertise

Abstract The authors examine the career of the botanist and librarian Dorothy Inez Parker with the aim of understanding the role of women and libraries in the history of the Green Revolution. Trained in botany but struggling to secure a career as a scientist, Parker joined the st...

Retrofitting language models to operate over bytes

Abstract Recent advances in artificial intelligence (AI) have largely been driven by large language models, deep neural networks that operate over discrete units called tokens. To represent text, most large language models use words or word fragments as the tokens, known as subwo...

Maresin 2 Attenuates Hypertensive Vascular Remodeling via Inhibiting Macrophage Infiltration and Pro‐fibrotic Polarization

ABSTRACT Immune‐inflammatory responses are pivotal regulators of hypertensive vascular remodeling. Specialized pro‐resolving mediators (SPMs), including Maresin 2 (MaR2), are endogenous anti‐inflammatory molecules. However, the specific role of MaR2 in regulating hypertension and...

Hypertension Management and Control in Cienfuegos, Cuba

This population-based cross-sectional survey assesses hypertension prevalence and indicators of management and control in 2023 and compares these findings with a similar population-based survey conducted in 2011.

Cutaneous Lymphoma International Prognostic Index and Risk Stratification in Advanced Mycosis Fungoides and Sézary Syndrome

Importance Risk stratification in advanced mycosis fungoides and Sézary syndrome (MF/SS) remains suboptimal given that current TNMB (tumor, node, metastasis, blood) staging has limited prognostic value for clinically relevant outcomes. Objective To determine whether the Cutaneous...

A nuclear clock synchronized to 229Th

Abstract Atomic clocks have made time and frequency the most precisely measured quantities in physics, progressing from microwave standards that realize the SI second 1 to optical clocks with unprecedented precision 2 . A nuclear clock transfers the frequency reference from an el...

An Innovative Approach for Estimating Coseismic Surface Uplifts Using Ionospheric Observations From Remote GNSS Stations: First Application for the 2025 Myanmar Earthquake

Abstract The M w 7.7 Myanmar earthquake on 28 March 2025 ruptured ∼480 km of the Sagaing Fault. Its fault slip distribution remains poorly constrained by three‐dimensional surface displacement data due to sparse GNSS‐coverage near the fault. Satellite‐based synthetic aperture rad...