Research works

CogRAG: Tackling Heterogeneous Cognitive Demands in RAG via Stratified Retrieval and Reasoning

Retrieval-Augmented Generation (RAG) frameworks typically process all queries through a one-size-fits-all pipeline, ignoring the heterogeneous cognitive demands of different tasks. This cognitive-blind approach causes two failure modes: cascading errors when low-level factual gap...

Clinical efficacy of unilateral biportal endoscopic spinal decompression for lumbar intraspinal pneumatosis

<title>Abstract</title> Study design: Retrospective observational study. Objective To analyze the short-term clinical efficacy of unilateral biportal endoscopic (UBE) spinal decompression in the treatment of lumbar intraspinal pneumatosis. Background Lumbar intraspinal pneumatosi...

Unitary representations and von Neumann’s continuous geometries

We prove that the unit group of a nondiscrete irreducible, continuous ring, in the sense of John von Neumann, does not admit any nontrivial unitary representation continuous with respect to the strong operator topology.

DQIS — Addendum I: Temporal Stratification of Tail Dependence Risk

DQIS — Addendum I: Tail Dependence — What the Correlation Coefficient Does Not Tell You (V23, August 2026). Companion to Consolidated Framework V39 and Objections Register V38. The mathematical supplement covering the one place where the central claim is soft: channels that look...

Structural and Functional Cardiac Reverse Remodeling After Bariatric Surgery: A Prospective Comparison of Sleeve Gastrectomy and Roux-en-Y Gastric Bypass

OBJECTIVE: Obesity is associated with characteristic cardiac remodeling, including left ventricular (LV) hypertrophy, concentric geometry, and subclinical myocardial dysfunction. Bariatric surgery induces reverse cardiac remodeling; however, it remains unclear whether structural...

An Independent Predictor of Technical Success in Patients with Chronic Total Occlusions: The Atherogenic Index of Plasma

OBJECTIVE: The atherogenic index of plasma (AIP) has been increasingly associated with coronary artery disease and adverse cardiovascular outcomes. This study aimed to evaluate the clinical relevance of AIP in predicting technical success in percutaneous coronary intervention (PC...

D-POAF® Implementation Kit - Starter Pack v1.1

D-POAF® Implementation Kit - Starter Pack v1.1 This package contains the official D-POAF® Implementation Kit - Starter Pack v1.1, a set of five ready-to-use operational templates designed to support teams in adopting the Decentralized Proof-Oriented AI Framework (D-POAF®). The ki...

DQIS — Distributed Quorum-Based Independent Immune Surveillance: A Theoretical Framework for Byzantine Fault Tolerance for Multi-Channel Immune Surveillance

DQIS — Distributed Quorum-Based Independent Immune Surveillance. Consolidated Framework (V39, August 2026). The question. Can Byzantine fault tolerance — building reliable systems from unreliable, independently-failing parts — be made useful to tumour immune surveillance? The cla...

OptiMat Alloys: a FAIR, living database of multi-principal element alloys enabled by a conversational agent

The FAIR principles have transformed how computational materials data and workflows are shared, yet existing repositories can only serve pre-computed entries — their coverage is perpetually incomplete and cannot adapt to new questions on demand. We built OptiMat Alloys, a large-l...

The benefits of green roofs for urban water management and thermal regulation: Insights from Catania (Sicily, Italy)

This study provides a comprehensive field-based assessment of the hydrological and thermal performance of three semi-intensive green roof (GR) technologies under Mediterranean climate conditions in Catania (Sicily, Italy). The experimental system, covering approximately 900 m2, w...

Controlling rigid-wing airborne wind energy systems during circular flight without exact path following

Abstract. We propose a feedback architecture that enables effective flight control of rigid-wing airborne wind energy systems during circular-pattern reel out. The controller performs well with only proportional-integral regulators, thereby presenting a significantly simpler solu...

The emergence of (3+1)-dimensional expanding spacetime from complex Langevin simulations of the Lorentzian type IIB matrix model with deformations

Abstract The Lorentzian type IIB matrix model is a promising candidate for a nonperturbative formulation of superstring theory. In this model, the eigenvalue distribution of the N × N bosonic matrices Aμ (μ = 0, …, 9) represents an emergent spacetime, which is determined by the d...

Bone flap resorption after autologous cranioplasty for traumatic brain injury: a case–control study in Vietnam

<title>Abstract</title> Introduction Autologous bone is a commonly used material for cranioplasty following decompressive craniectomy; however, it is accompanied by the inherent risk of resorption. This study aimed to identify factors associated with bone flap resorption (BFR) in...

Impact of socioeconomic status on treatment and survival in multiple myeloma in Australia

<title>Abstract</title> Outcomes in multiple myeloma (MM) have improved significantly but remain heterogeneous. We assessed the impact of non-biological social determinants of health on treatment and survival outcomes in Australia using data from the Australian and New Zealand My...

Identification of prognostic genes for hepatocellular carcinoma based on hepatocyte and ketone body metabolism using integrated bulk and single cell RNA sequencing

<title>Abstract</title> Background The precise role of ketone body (KB) metabolism and the underlying cellular mechanisms in hepatocellular carcinoma (HCC) remain unclear. This study aimed to identify and mechanistically explore KB metabolism-related prognostic genes in HCC. Meth...

A regulator of amino acid catabolism controls Acinetobacter baumannii gut colonization

Abstract Asymptomatic gut colonization increases the risk of clinical infection and transmission by the multidrug-resistant pathogen Acinetobacter baumannii . Ornithine utilization was shown to be critical for A. baumannii competition with the resident microbiota to persist in gu...

The Effect of Predilatation on Procedural Outcomes in Patients Undergoing Saphenous Vein Graft Percutaneous Coronary Intervention for Acute Coronary Syndrome

OBJECTIVE: Percutaneous coronary interventions (PCI) of saphenous vein grafts (SVG) are technically challenging due to friable plaques, high thrombus burden, and the risk of distal embolization. The impact of balloon predilatation on outcomes in patients presenting with acute cor...

Strong connections of locally clustered neurons in the upper-layer cortex underlie schizophrenia-related auditory deviance detection

The detection of unexpected sounds, or auditory deviance detection, is thought to be achieved by comparing prediction signals and sensory inputs in the auditory cortex. This process is markedly impaired in patients with schizophrenia. However, the local circuit properties underly...

Persistent Free Volume Governs (Anti)plasticization in Chitosan-Water Mixtures

Abstract Chitosan is a highly versatile and sustainable polymer with a broad range of potential biological and materials engineering applications. Despite its versatility, the native brittleness of chitosan limits its broader utilization. This limitation can be addressed by blend...

Discovering Structural,Electronic, and ExcitonicProperties of Bulk, Nanostructured, and Doped C3N4 in Diamond- and Graphitic-Like Phases

Abstract In this systematic density functional theory study, we compare a standard gradient-corrected functional (PBE) with a long-range hybrid functional (HSE06), with and without correction for the dispersion forces, relative to their ability to correctly reproduce structural a...