University of Tehran

Dietary nanoencapsulated A-Ghrelin improves growth performance and health status in juvenile Siberian sturgeon

This study evaluated a novel multi-functional feed supplement for juvenile Siberian sturgeon ( Acipenser baerii ), combining an acetylated ghrelin analog (A-Ghrelin) with a chitosan-alginate-iron oxide (Fe₂O₃) nanoparticle delivery system. Over 60 days, 240 fish (initial weight:...

Cr-driven σ-phase formation and microstructural evolutions in TIG-cladded Fe2CoCrxNiMo0.7 high-entropy alloys

In this study, Fe 2 CoCr x NiMo 0.7 (x = 1, 1.5, 2) high-entropy alloys (HEAs) were deposited on AISI 304 stainless steel substrates via tungsten inert gas (TIG) cladding. Elemental powders were proportioned to compensate for substrate dilution (30-38%), ball-milled for 2 h for h...

Microbes in the dust: The ecology of arid soil microbiomes

Drylands now cover approximately 45% of Earth's terrestrial surface and are expanding under climate change, yet the microbial communities inhabiting these vast regions remain poorly integrated into ecosystem models. This review synthesizes current knowledge on arid soil microbiom...

Collapse performance and subsystem response of dual SMF–SCBF systems under nonlinear soil–structure interaction and near-fault motions

Existing collapse assessments do not clarify whether nonlinear soil–structure interaction (SSI) and near-fault ground motions with forward-directivity characteristics only alter global demand or also modify subsystem interaction in dual Special Moment Frame–Special Concentrically...

Paraprobiotics suppress bacterial virulence and promote anti-inflammatory tissue repair in a murine infected burn wound model

Abstract Burn wound infections are a significant clinical problem that requires effective therapeutic interventions. Paraprobiotics, a non-viable form of microbial cells or components of probiotics, retain some health benefits while eliminating the risks associated with live micr...

The Pattern of the Manager as a Coach: A Meta-Synthesis

The aim of this research is to propose a conceptual framework of the manager as a coach, extracted from the existing literature by using a meta-synthesis method. Data analysis was conducted using thematic analysis through Maxqda 2020 software. As a result, 13 main categories and...

Buckling analysis of thin‑walled composite cylinders under hydrostatic external pressure

This study investigates the primary and secondary buckling behavior of thin-walled composite cylinders subjected to external pressure using analytical formulations and finite element (FE) modeling. A refined analytical model is developed to estimate the primary buckling pressure,...

Comparison of kinetic and kinematic variables during single-leg jump landing between athletes with and without concurrent flexible flatfoot and genu varum deformities

Jumping and landing are among the most important movements in most sports; however, athletes with flexible flatfoot or genu varum deformities are vulnerable to lower limb injuries during these maneuvers. Therefore, this study aimed to compare the kinetics and kinematics of single...

Event-specific flood extent prediction using ensemble machine learning and multi-source geospatial data

Study Region The Kashkan River Basin in western Iran is characterized by complex topography and diverse environmental conditions that contribute to spatial variability in flood occurrence and extent. The basin is therefore a relevant case for developing high-resolution approaches...

Bony labyrinth taxonomic identification and long-term evolution of livestock in the Southwest and Central Asia

Abstract Southwest and Central Asia were pivotal regions for the domestication and dispersal of domestic herbivores. Here we investigate long-term variation in bony labyrinth morphology of domestic bovids (sheep, goats and cattle) across the last 10 000 years. We focused on the o...

Isolation and identification of usnic acid from Usnea articulata and evaluation of the antioxidant and antibacterial activities of its ethanol and acetone extracts

Abstract In this study, the antioxidant and antimicrobial activities of Usnea articulata were investigated, and usnic acid was isolated and structurally characterized. Antioxidant activity and total phenolic content were evaluated in acetone and ethanol extracts of the species us...

Regional Hypertrophy of the Gluteal Muscles Is Task-Specific: Differential Responses to 10 Weeks of Hip Extension Versus Hip Abduction Training

Abstract Attarieh, P, Nunes, JP, Khani, S, Moniri, A, Goli, A, Negahdar, S, Mohammadinia, F, Fallah, MH, and Shahrbanian, S. Regional hypertrophy of the gluteal muscles is task-specific: Differential responses to 10 weeks of hip extension versus hip abduction training. J Strength...

Effects of QEEG-guided low-intensity transcranial magnetic stimulation on executive network function in an athlete with chronic traumatic brain injury

Traumatic brain injury (TBI) may result in persistent executive dysfunction, adversely affecting cognitive control, attention, and decision-making in athletes. Quantitative electroencephalography (QEEG)-guided personalized neuromodulation has emerged as a potential approach for t...

Spatial Associations Between the Neighborhood Built Environment and Mental Health: Evidence from Tehran

Abstract Built environments influence mental health, yet evidence on how different dimensions of urban form relate to specific mental health outcomes remains mixed, particularly in high-density cities. This study examined these relationships in Tehran, Iran, while accounting for...

A genetic algorithm–optimized EWMA control chart integrating machine learning-based risk prediction for multistage thyroid cancer treatment monitoring

Effective monitoring of thyroid cancer treatment requires timely detection of clinically meaningful changes across complex, multistage care pathways. Traditional monitoring approaches often rely on static thresholds and periodic assessments, limiting their sensitivity to subtle y...

Bioactivity-driven prediction of antibacterial synergy using machine learning models

Motivation Combination therapies have demonstrated improved efficacy across diverse clinical settings. Predicting antibacterial drug synergy remains difficult due to strain variability and the limited scale of experimentally tested combinations. Existing machine-learning approach...

A flow shop scheduling problem incorporating a reconfigurable material handling Robot: A constraint programming approach

A reconfigurable manufacturing system (RMS) is a new paradigm for the manufacturing environment to respond to unpredictable market change and frequent new product introduction. One of the components of an RMS is a reconfigurable material handling system (RMHS). This paper investi...

From plant barriers to stress resilience: a framework for evaluating productive nano-delivery in plants

Nano-enabled agriculture has the potential to improve the efficiency and precision of agricultural inputs, yet the field lacks a rigorous framework for distinguishing nanoparticle accumulation from productive functional delivery. This review develops a nano-to-phenotype framework...

Seed bio-priming with Streptomyces sp. UTMC 3136 and Streptomyces sp. UTMC 2482 enhances physiological traits of Triticum aestivum L. under drought stress

The use of bacteria to enhance drought tolerance in plants holds considerable promise for agricultural production. However, the effects of Streptomyces on plant drought tolerance remain poorly understood. In the present study, we investigated how wheat cultivars bio-priming with...

Adding the Molecular Diversity Information of the Common Fouling Barnacle Amphibalanus amphitrite (Darwin, 1854) (Crustacea: Cirripedia) from the Persian Gulf and Gulf of Oman to the Global Diversity Pattern

in the PG and GO appears to have been shaped by both historical events and recent human activities.