Research works

Probiotics characterization of fermented tiger nut-millet-blended beverage

Abstract This study investigated the functional characteristics and probiotic potential of lactic acid bacteria (LAB) isolated from a fermented tiger nut-millet beverage. The beverage was prepared using a traditional tiger nut fermentation process (sorting, cleaning, soaking, spi...

Specialists’ agreement and construct validation of a visual scale for assessing mucosal healing after third molar extraction

OBJECTIVE: To present and validate a digital visual scale for evaluating mucosal wound repair after mandibular third molar extraction. The research seeks to establish a standard-based tool to improve communication in clinical practice and research by reducing subjectivity in post...

Spherical Type Is an Isomorphism Invariant of Artin Groups

We prove that an Artin group abstractly isomorphic to an Artin group of spherical type is itself of spherical type. No condition is imposed on the isomorphism or on the rank of the source presentation. The main observation is that, for an irreducible nonspherical Artin group, the...

Narcissistic leadership and counterproductive work behavior among Gen Z employees in Vietnam: a moderated serial mediation model

Purpose This study develops an indirect and conditional explanation of the association between narcissistic leadership (NL) and counterproductive work behavior (CWB) among Vietnamese Generation Z employees. It examines organizational cynicism (OC) and turnover intention (TI) as m...

Limited global awareness of invasive alien species and little support for their management

Invasive alien species (IAS) are one of the main drivers of global change and can cause a wide range of negative ecological and social impacts. Addressing these impacts requires management actions, which can fail to be effective when not supported by the public. Here, we conducte...

Domain-Selective Enhancement of Second Harmonic Generation in Monolayer MoS2 via Ferroelectricity-Controlled Photodoping

Abstract Hybrid heterostructures combining two-dimensional semiconductors with ferroelectric materials offer a versatile route to actively control light–matter interactions at the nanoscale. Here, we report all-optical, light-induced domain-selective control of second-harmonic ge...

Spatially Dispersive Second-Harmonic Generation in Ferroaxial Systems

Spatially dispersive second-harmonic generation (SHG) provides a powerful probe of centrosymmetric multipolar states beyond the electric-dipole approximation. We develop a gauge-consistent microscopic theory of spatially dispersive SHG that treats electric-quadrupole (EQ) and mag...

A unified CutFEM formulation for finite-strain elasticity: energy minimisation and corner singularities

We present a fully variational, model-independent formulation of the Cut Finite Element Method (CutFEM) for finite-strain elasticity. The discrete problem is derived from a single augmented energy functional consisting of the bulk hyperelastic energy, the Nitsche terms that impos...

Nonadditive Conformational Effects of tRNA Core Modifications

Abstract Post-transcriptional modifications are known to regulate the structure and function of tRNA molecules. Compared to modifications in the anticodon region, the mechanistic effects of modifications in the core region of tRNA remain poorly understood. Using all-atom molecula...

Hamiltonian-Aware ADAPT Variational Quantum Eigensolver for Molecular Ground-State Simulation

Abstract Designing compact ansätze for the Variational Quantum Eigensolver (VQE) is crucial for calculating energies of large molecules on near-term quantum devices. However, the widely used Adaptive Derivative-Assembled Pseudo-Trotter (ADAPT) ansätze present two challenges: th...

Active inference with reusable state-dependent value profiles

Optimal behavior in volatile environments requires agents to deploy different value-control regimes across hidden latent structures. However, representing independent preferences, biases, and action confidence for every situation is computationally and statistically intractable....

Enumerative Chromatic Choosability

Chromatic-choosability is a notion of fundamental importance in list coloring. A graph is chromatic-choosable when its chromatic number is equal to its list chromatic number. In 1990, Kostochka and Sidorenko introduced the list color function of a graph $G$, denoted $P_{\ell}(G,m...

A Generalization of RSK to d-Complete Posets

The hook length formula for d-complete posets expresses the number of linear extensions of a d-complete poset $P$ in terms of hooks of $P$. It generalizes the usual hook length formula for standard Young tableaux, as well as hook length formulas for shifted Young tableaux and tre...

Cardiovascular function changes following lung resection: a computational model to compare afterload increase and contractility loss mechanisms

Functional limitation after lung resection surgery has been consistently documented in clinical studies, and right ventricle (RV) dysfunction has been hypothesized as a contributing factor. However, the mechanisms of RV dysfunction after lung resection remain unclear, particularl...

Unavoidable Minors of Matroids with Minimum Cocircuit Size Four

In 1963, Halin and Jung proved that every simple graph with minimum degree at least four has $K_5$ or $K_{2,2,2}$ as a minor. Mills and Turner proved an analog of this theorem by showing that every $3$-connected binary matroid in which every cocircuit has size at least four has $...

Bounds on Treewidth via Excluding Disjoint Unions of Cycles

One of the fundamental results in graph minor theory is that for every planar graph $H$, there is a minimum integer $f(H)$ such that graphs with no minor isomorphic to~$H$ have treewidth at most $f(H)$. The best bound known for an arbitrary planar $H$ is ${O(|V(H)|^9\operatorname...

Ultra Log-Concavity and Real-Rootedness of Dependence Polynomials

For some positive integer $m$, a real polynomial $P(x)=\sum\limits_{k=0}^ma_kx^k$ with $a_k\geqslant 0$ is called {log-concave} (resp. ultra log-concave) if $a_k^2\geqslant a_{k-1}a_{k+1}$ (resp. $a_k^2\geqslant \left(1+\frac{1}{k}\right)\left(1+\frac{1}{m-k}\right)\cdot$ $a_{k-1...

State Transfer in Discrete-Time Quantum Walks via Projected Transition Matrices

In this paper, we analyze state transfer in quantum walks by using combinatorial methods. We generalize perfect state transfer in two-reflection discrete-time quantum walks to a notion that we call peak state transfer; we define peak state transfer as the highest state transfer t...

A Triangulation of the Flow Polytope of the Zigzag Graph

We show that the dual graph of the triangulation of the flow polytope of the zigzag graph adorned with the length-reverse-length framing is a subgraph of a grid graph. Through Mészáros, Morales, and Striker's bijection between simplices of the triangulation, integer flows of a di...

Evaluating cardiological rehabilitation using wavelet analysis: a pre- and post-rehabilitation comparison

Abstract Cardiac rehabilitation (CR) improves prognosis and exercise capacity, but conventional indices may not fully capture subtle changes in cardiovascular signal dynamics. Time–frequency analysis of cardiovascular signals may provide additional, candidate time–frequency featu...