Research works

FDG-PET/CT Evaluation of Pulmonary Artery Sarcoma Masquerading as Pulmonary Embolism

A 20-year-old woman underwent evaluation for cardiopulmonary symptoms initially attributed to pulmonary embolism of uncertain chronicity. Positron emission tomography/computed tomography (PET/CT) revealed an intensely fluorodeoxyglucose (FDG)-avid mass within the right pulmonary...

Regeneration and Cancer—The Two Sides of a “Stem Cell” Coin: The 2025 Mildred Weisenfeld Award Lecture

Stem cells endowed with properties of self-renewal and differentiation have opened new avenues for restoration and regeneration of damaged tissues. The same adult stem cells, when they undergo irreversible mutations, transform into cancer cells and generate a tumor. In this lectu...

Impact of AI-Based Fraud Prevention on Customer Trust in Digital Payment Systems: An Empirical Investigation of Continuance Intention among Indian Users

Abstract The rapid expansion of digital payment ecosystems in India, anchored by the Unified Payments Interface (UPI), has been accompanied by a sharp rise in payment fraud, eroding consumer confidence and threatening long-term adoption. Artificial intelligence (AI)-driven fraud...

A Density-Consistent, Finite van der Waals Potential from Gaussian Atomic Densities

Abstract In force fields that use Gaussian atomic densities, finite charge distributions soften short-range electrostatics, yet the van der Waals interaction can remain a separate singular Lennard-Jones term. We show that the same Gaussian density that regularizes electrostatics...

Between Secrecy and Ostentation: Shrines and Rites for the Barbarous Relic

ABSTRACT Central bank gold vaults occupy a paradoxical position in contemporary monetary systems: They are among the most symbolically charged and institutionally significant spaces of modern finance, yet they have received almost no scholarly attention. This article argues that...

Spacetime Currents as an Ocean: Laminar Extension Cst=GM/r²[1+K0·M/r²] - K0=4.5×10⁻¹⁹ m²/kg from Sgr A* (2.58% offset) - Falsifiable at S2 2027

TITLE: Spacetime Currents as an Ocean: A Phenomenological Extension Cst(r,t)=g_N[1+Φ] with K0=4.5e-19 m²/kg - Testable at S2 in 2027 AUTHOR: Kamal Ben Khadem - El Birine, Djelfa, Algeria ABSTRACT We propose spacetime as an ocean, not a fabric. Fabric tears at singularities, ocean...

Study on the Scale Effects of Water–Sediment Characteristics in a Trapezoidal Desilting Channel with a Swirling Flow Generator

Abstract To clarify how scale effects alter the water–sediment characteristics of trapezoidal desilting channels with a swirling flow generator (TDCSFG) from model to prototype scale, this study combines numerical simulation with experimental validation. It systematically investi...

Genomic Analysis of an IMP-1-Producing Atlantibacter hermannii Bloodstream Isolate Carrying a Transferable blaIMP-1-Harbouring IncHI2/pST1 Plasmid Related to Historical Enterobacterales Plasmids in Japan

Atlantibacter hermannii is an uncommon member of the Enterobacterales rarely associated with human infection, and genomic data on antimicrobial resistance in this species remain limited. Carbapenemase-producing A. hermannii isolates have rarely been described. We characterized an...

Green valorization of Carica papaya seed waste for biogenic silver nanoparticles: Physicochemical characterization and in vitro antibacterial and antidiabetic activities

The present study investigated the green synthesis of silver nanoparticles using Carica papaya seed extract (Ag-CPSE-NPs) and evaluated their physicochemical characteristics, antibacterial activity, and in vitro antidiabetic potential. The green-synthesized Ag-CPSE-NPs prepared u...

Unraveling the Mechanism of ACQ-to-AIE Transformation of 3,5-Diacetyl-1,4-dihydro-2,6-lutidine: Dark-State Suppression via Hydrogen-Bond-Mediated Molecular Packing

Abstract Aggregation-induced emission (AIE) materials have attracted broad interest due to their efficient solid-state luminescence, yet a direct and predictable conversion of aggregation-caused quenching (ACQ) molecules into AIE systems remains a significant challenge. Recent ex...

Butyrate, PKM2, and the MYB–HDAC2–FOXA2 Differentiation Axis: Placing the Cho Cancer-Reversion Result in the Context of Prior Short-Chain Fatty Acid Chemistry

Hypothesis commentary linking the Cho et al. cancer-reversion result ""Control of Cellular Differentiation Trajectories for Cancer Reversion" (MYB, HDAC2, FOXA2) toprior butyrate, HDAC, c-Myb, PKM2, and FOXA2 literature, with inferences from the author’s 2022–2024 posts labeled a...

Who Bears the Burden? The Digital Omnibus and the Redistribution of Supervisory Costs

Abstract The Digital Omnibus package is presented as a technical simplification of the digital rulebook, with significant estimated savings for both businesses and public administrations. Its accompanying analysis, however, measures only the cost lifted from regulated entities: o...

From symbolic inclusion to substantive integration: state internship programme in Post-Soviet Georgia

Purpose To evaluate the effectiveness of Georgia's State Internship Programme for graduates from non-Georgian language schools enrolled in the “1 + 4 Programme,” by examining how it supports their professional integration, analysed through the lenses of representative bureaucracy...

Solid‐Liquid Interdiffusion Bonding Enabling Heterogeneous Integration on Flexible and Shapeable Polymer Platforms

The integration of rigid microscale electronics onto soft and flexible polymer substrates remains a key challenge for flexible electronics, biointegrated systems, and body-first microrobotics, where the mechanical body, material architecture, morphology, and primary functions are...

Metastable Porphyrin Assembly Engineered by Spatial Confinement for Amplified Built-In Electric Fields and High-Efficiency Photocatalytic Amino Acid Production

Abstract Enhanced charge-separation efficiency is fundamental to advancing organic photocatalytic production of high-value amino acids from biomass feedstocks, which can be promoted by strengthening built-in electric fields (IEF). Yet, current approaches to boost IEF, relying on...

Hierarchically Porous Fe–N–C Electrocatalysts with Accessible Fe-Nx Sites for High-Performance Oxygen Reduction Reaction in Zn-Air Batteries

Abstract Developing Fe–N–C electrocatalysts with high active site utilization remains a key challenge for the oxygen reduction reaction (ORR), primarily because of the limited accessibility of Fe-Nx sites. Herein, a hierarchically porous Fe–N–C (HP-Fe–N–C) catalyst is constructed...

Variable reactive power compensators versus fixed and switchable capacitor banks in providing ancillary services considering voltage fluctuations

Voltage fluctuations across distribution network buses can significantly influence both load consumption patterns and the reactive power output of compensation devices. To address these effects, strategic placement of reactive power support equipment is essential. While prior res...

Existence analysis of nonlinear q-fractional differential inclusions with p-Laplacian operators and an aerospace vibration-modeling illustration

This paper investigates a coupled system of nonlinear q -fractional differential inclusions involving nested p -Laplacian operators and nonlocal boundary conditions. The problem is formulated in a multivalued setting, where the nonlinear inclusion depends on the state vector and...

KOH-Assisted Purification of Graphene Oxide: Effect on Sulfur Residues, Dispersion Behavior and Thermal Reducibility

Graphene oxide (GO) is a key precursor of functionalized graphene materials and reduced graphene oxide (rGO), but its wider use is limited by difficulties in obtaining materials with reproducible composition, controlled oxidation degree and low post-reaction impurity content. Thi...

The Effect of Pre-oxidation on the Hydrogen Reduction of Magnetite Ores at 973 K: Role of Particle Size and Gangue Chemistry

This study systematically investigates the effects of controlled pre-oxidation on hydrogen-based reduction of three industrial magnetite ores, distinguished by their gangue chemistries (CaO, negligible gangue, and MgO), and examines two particle size fractions. Pre-oxidation beha...