Khazar University

Atomic clocks and gravitational waves as probes of non-metricity

Abstract Non-metricity provides a natural extension of Riemannian geometry, yet its experimental signatures remain largely unexplored. In this work we investigate how spacetime non-metricity can be probed through high-precision observations, focusing on atomic clocks and gravitat...

Decoding the greybody factor and potential barriers in a static black hole with quantum corrections

Abstract This article investigates the greybody factor of a static, spherically symmetric black hole coupled with the effective quantum gravity. With the use of Klein–Gordon equation, the radial component for a massless scalar field is computed. We then employ the tortoise coordi...

The Association Between Job Stress and Intention to Leave in Healthcare Institutions: A Systematic Review and Meta-Analysis

Background: Job stress is a pervasive issue in modern workplaces and is associated with numerous adverse outcomes, including employees’ turnover intention when stress levels are high. Objective: This study aimed to examine the association between job stress and turnover intention...

Inclined gabion drops improve hydraulic performance relative to conventional USBR stilling basins under variable flow conditions

This study experimentally and numerically investigates the hydraulic performance of the Inclined Gabion Drop (IGD) as a sustainable energy dissipator compared with conventional USBR stilling basins. Laboratory experiments were conducted under varying flow conditions, drop heights...

Black Hole Gravitational Phenomena in Higher-Order Curvature–Scalar Gravity

This work aims to explore the gravitational consequences of a recently proposed black hole solution previously introduced, which incorporates quantum gravitational corrections of General Relativity. We initiate our analyses by taking into account the horizon structure, focusing o...

Analytical and Numerical Bound-State Analysis of One-Dimensional Time-like Vector Potentials in the Feshbach–Villars Formalism

We analyse one-dimensional bound states of spin-zero particles coupled to external time-like vector potentials within the Feshbach–Villars representation. The study is organised around a practical criterion of physical admissibility that distinguishes genuine bound states from sc...

A hybrid machine learning framework using fractional order dynamics to predict fish toxicity in aquatic ecosystems

Accurate prediction of chemical toxicity to aquatic organisms remains a critical challenge in environmental risk assessment. Traditional machine-learning (ML) models capture static correlations but cannot represent time-dependent, memory-driven processes such as bioaccumulation a...

Early Mental Recovery After Job Loss: Uncovering Critical Factors Through a Novel Fuzzy Decision-Making Framework

In corporate life, job loss is a multidimensional crisis that not only threatens individuals’ economic security but also profoundly shakes psychological balance, sense of identity, and future expectations. The aim of this study is to identify the factors that most significantly i...

A lightweight hybrid encryption scheme for secure IoT communications based on elliptic curve cryptography and a chaotic dynamic substitution box

The rapid growth of interconnected systems, particularly within the Internet of Things (IoT), has significantly increased the volume of data exchanged across networks, making data security a critical challenge in environments with limited computational resources. Consequently, th...

Geometric and wave optics analysis of BTZ-like charged wormholes with disclinations

We study the geometric and wave-optical properties of a charged BTZ wormhole (BTZCWH) spacetime carrying disclinations. The metric function \(f(r)=1-b_0/r-\mathcal {Q}^2 r^2/4\) has two positive zeros, an inner throat \(r_0\) and an outer zero \(r_*\) ; the static Lorentzian desc...

A winding number analysis of Schwarzschild black hole stability in light of Planck-scale modified kinematics

Abstract Determining whether Planck-scale effects can stabilize black holes addresses fundamental questions about black hole evaporation and quantum gravity consistency. Here, we analyze the thermodynamic topology ofSchwarzschild black holes under Planck-scale modified kinematics...

Ternary Deep Eutectic Solvents in Analytical Chemistry: Design Principles, Sample-Preparation Strategies, and Emerging Sensing Applications

In this review, we emphasize on ternary deep eutectic solvents (TDESs) utilized in environmental and analytical chemistry for separation and sensing purposes in contrast to their binary counterparts, known as simple deep eutectic solvents (DESs). To ensure food security, high wat...

FTIR–XRD comparative study of pyrolysis residues obtained from plastic waste

This study examines the thermal degradation of PET-1 plastic waste containers (SIRAB, Azerbaijan) using FTIR spectroscopy and XRD analysis. Samples were pyrolyzed at 350°C, 450°C, and 550°C for 1 h under inert conditions. XRD results show a progressive loss of crystallinity with...

CortexNet: convolutional neural networks for alzheimer’s disease diagnosis using brain MRI

Alzheimer’s disease is one of the most common degenerative brain diseases, and its early detection plays an important role in improving clinical management, increasing treatment effectiveness, and reducing the consequences of disease progression. In this study, a family of convol...