Research works

Improving ADRC Strategy for DC-Link Voltage Regulation in PV Grid-Tied Four-Leg Inverters Using an Adaptive Nonlinear High-Gain Observer

In practical photovoltaic grid-tied four-leg inverter systems (PV-GTFLIs), changes in radiation, temperature, and grid voltage magnitude cause significant disturbances, including DC-link voltage disturbance and power unbalance, which can impact the system’s dynamic responses, con...

novum: A Training-Free Structural Operator for Prediction and Generation

We introduce novum, a training-free structural operator that reads and generatesdirectly from a table's structure. Worlds sit on typed axes and are related bycoincidence: agreement across a set of intrinsic gaps rather than closeness in ametric. Every act obeys a single invariant...

Consumer AI as Health Plan Decision Support: A benchmark of LLM plan recommendations against a claims-based pricing engine

Consumers increasingly ask AI chatbots to recommend health insurance plans, yet little is known about whether they estimate costs accurately or select the right plan. We benchmark the July 2026 consumer AI lineup from OpenAI and Anthropic on a realistic plan-selection task: five...

Prognostic Accuracy of the Phoenix Sepsis Criteria for Mortality in Children With Suspected Infection: A Systematic Review and Meta-Analysis

Objectives: We aimed to evaluate the pooled prognostic accuracy of the Phoenix Sepsis Criteria (PSC) for in-hospital mortality and compare its performance with the International Pediatric Sepsis Consensus Conference (IPSCC) criteria in children with suspected infection. Data Sour...

EuroMillions Breakthrough Mining — 1404 Sources, 9569 Leads Extracted — E8 Intelligence Research

Mined 1404 lottery+quantum breakthroughs. Extracted 9569 leads across 13 categories. 7662 high-value leads found. Categories: {"CORRIDOR": 780, "FORMULA": 632, "GEOMETRIC": 677, "FORWARD_ATTEMPT": 811, "QUANTUM": 1024, "TIMING": 179, "CELESTIAL": 720, "GEMATRIA": 765, "CONSTANT":...

A CT-Based 3D Anatomical Mapping Study of Right Posterior Portal and Hepatic Venous Patterns: Revisiting Liver Segmentation and Its Surgical Implication

Background: Classical Couinaud’s segmentation assumes the dichotomous division of the right posterior portal vein (RPPV) into P6 and P7. However, increasing imaging evidence suggests substantial anatomical variability, limiting the intraoperative identification of segmental borde...

Analysis of the prevalence of positivity for tuberculosis infection in formalin-fixed paraffin-embedded tissue

Abstract Background The objective of this study was to analyze the tuberculosis(TB) positivity rate of formalin-fixed paraffin-embedded (FFPE) tissue samples, to explore the difference between the positivity rates of pulmonary tuberculosis (PTB) and extrapulmonary tuberculosis (E...

Neuroinflammatory Response to Postnatal Administration of Valproic Acid in Wistar Rats as a Mechanism for the Development of Autism Spectrum Disorders: The Role of Neutrophils

Background/Objectives: According to current concepts, neuroinflammation is one of the putative causes of autism spectrum disorders (ASD) development. However, the role of neutrophils in neuroinflammation remains insufficiently studied. The study was aimed to determine the role of...

A Low-Profile Circularly Polarized Metasurface MIMO Antenna with Enhanced Axial-Ratio Bandwidth for IoT Applications

This study develops and experimentally evaluates a low-profile four-port circularly polarized metasurface MIMO antenna for fixed or sectorized wireless links in the 6 GHz band. The design begins with an aperture-coupled single element incorporating a 4×4 slotted metasurface and i...

Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems

ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food...

Effects of Simulated Gastric Acid Exposure on Surface Roughness, Optical Properties, and Mass Change in Monolithic CAD/CAM Restorative Materials: An In Vitro Study

This in vitro study evaluated the effects of simulated gastric acid exposure on surface roughness, color change, translucency, and mass change in four monolithic CAD/CAM restorative materials with different microstructural compositions. Rectangular specimens (12 × 14 × 1 mm; n =...

Multimodal radiopathological integration for prognosis of limited and extensive stage small cell lung cancer

Small-cell lung cancer (SCLC) is an aggressive malignancy with poor survival and no validated prognostic biomarkers. We developed and validated a multimodal artificial intelligence–based radiopathomic framework to predict progression-free survival (PFS) by integrating radiologic...

Comparison between the blood urea nitrogen (BUN)-to-creatinine ratio and four urinary biomarkers of dehydration; a cross-sectional study in fasting patients awaiting surgery

The blood urea nitrogen (BUN)-to-plasma creatinine ratio is a conventional method for diagnosing dehydration. We examined the relationship between this method and the more recently promoted urine biomarkers of dehydration. Blood and urine sampling was performed in 921 patients wh...

An Adapted High-Pressure Homogenization Workflow Improves Recombinant β-Casein Recovery from Escherichia coli Inclusion Bodies

The efficient extraction and purification of recombinant β-casein from Escherichia coli is a crucial step in bioprocess engineering. This study evaluates an adapted high-pressure homogenization (HPH) workflow for recombinant β-casein recovery and compares it with osmotic shock (O...

Beyond Morphological Conservatism: Integrative Taxonomy Unveils Remarkable Cryptic Diversity in the Tachysurus virgatus (Oshima 1926) Group (Siluriformes: Bagridae) Endemic to the Northern Margin of East Asian Tropics

The northern margin of the East Asian tropics harbors exceptional endemism, yet its freshwater fish fauna remains poorly characterized. Tachysurus virgatus, long considered a single widespread species in this region, exemplifies this taxonomic gap. Through integrative taxonomic a...

In Situ Effects of 4,6-α- and 4,3-α-Glucanotransferases During Sourdough Fermentation: Assessing Microbial Community Dynamics, Bread Glycemic Index, Staling, and Texture

Although some lactic acid bacteria species harbor genes encoding α-glucanotransferases (4,6-α-GTase and 4,3-α-GTase), the technological and functional implications of these enzymes within sourdough ecosystems remain poorly understood. This study investigated the effects associate...

Baseline Response Characterization and Relative Vertical Displacement Reconstruction of Multi-Layer Asphalt Pavements Based on Quasi-Distributed FBG Monitoring Information

Internal responses of multilayer pavement structures are difficult to characterize using surface-based inspection alone. This study investigates a scaled multilayer pavement model instrumented with embedded quasi-distributed fiber Bragg grating (FBG) sensing lines to obtain basel...

Sagittal alignment patterns in forward head posture: an EOS-based head-to-pelvis correlation analysis

Abstract Study Design Retrospective radiographic study. Objectives Forward head posture (FHP) is commonly observed in individuals with prolonged screen exposure and may affect spinal alignment. Because the craniovertebral angle (CVA) alone does not fully capture how sagittal bala...

Emotional distress in patients before first-time and redo catheter ablation for atrial fibrillation

Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and is frequently accompanied by anxiety and depressive symptoms, which may affect quality of life. While catheter ablation (CA) is an established therapy for AF, data comparing emotional distress burden pri...

Distributed knowledge execution and entrepreneurial adaptability: extending knowledge management into autonomous digital ecosystems

Purpose This study aims to examine how distributed intelligence capabilities function as knowledge management mechanisms that support entrepreneurial innovation and strategic scalability in distributed digital ecosystems. Specifically, the study investigates how augmented intelli...