Occurrence and transport of per- and polyfluoroalkyl substances (PFAS) in the leachate of a municipal solid waste landfill in Tehran, Iran (a Middle-eastern megacity).

Per- and polyfluoroalkyl substances (PFAS) are present in a variety of products that are disposed in landfills as waste and end up in landfill leachate which cause severe problems. The primary aim of this study was to detect PFAS in generated leachate in different sections of a process and disposal complex (called Aradkuh) located in Tehran, Iran. Due to techno economic limitations of measuring PFAS in Iran and easiness of measuring physicochemical parameters to determine PFAS concentration as well as better understanding of the mechanisms of these substances releases from landfills, this research aimed to evaluate the potential relationship between these parameters in landfill leachate.

Impact of hydrodynamic cavitation-assisted microbubble with N, CO, and air on pasting, morphological, and thermal properties of starches from different botanical origins.

Microbubble-assisted starch modification (MASM) using different gases (N, CO and air) was employed to assess the effects of hydrodynamic cavitation (HC) on various botanical starches, including potato, wheat, corn and rice. SEM showed that N- and CO- microbubbles created more pronounced holes and cracks on the starch surfaces than air-microbubbles. The hydrodynamic cavitation-assisted microbubble (HCAM) treatment significantly reduced the amorphous and crystalline structures in potato and wheat starches, with less impact observed in corn and rice.

A short review on polysaccharide-based nanocomposite adsorbents for separation and biomedical applications.

Polysaccharides such as chitosan, alginate, cellulose, and carrageenan have emerged as promising adsorbents due to their biodegradability, abundant availability, and diverse chemical functionality. These biopolymers exhibit promising performance for adsorption of a wide range of pollutants including heavy metals (e.g.

Growth of the prefrontal cortical glioblastoma altered cognitive and emotional behaviors via mediating miRNAs and GABA-A receptor signaling pathways in rats.

The present study investigated the impact of GABAergic signaling and miRNA expression on glioblastoma multiforme (GBM) growth within the medial prefrontal cortex (mPFC) and its associated cognitive and emotional impairments. The implantation of C6 cells into the mPFC induced GBM in this brain region (referred to as the mPFC-GBM) in male Wistar rats via stereotaxic surgery, as confirmed by Magnetic Resonance Imaging (MRI), and Hematoxylin and Eosin (H&E) staining. Repeated microinjections of muscimol, a potent GABA receptor agonist, directly into the mPFC-GBM (1 µg/rat/2.

A comprehensive report of the clinical and mutational profiles of 30 Iranian malignant infantile osteopetrosis patients.

Osteopetrosis is a group of genetically and clinically diverse inherited disorders characterized by an increase in bone density. The main known cause is an abnormality in the development or function of osteoclasts. Hence, the process of bone resorption is impaired, resulting in: 1- a reduction in bone marrow volume and, subsequently, a decrement in the hematopoietic capacity of bone marrow, which leads to anemia and compromised immunological function; 2- improper bone development, which leads to pressure on peripheral nerves, causing auditory, visual, and movement impairments; and 3- disturbance in the formation of bone microstructure that leads to susceptibility to bone fracture.

The effect of implicit and explicit motor learning on a targeting task in children with autism spectrum disorder (ASD).

This study aims to investigate the effect of different implicit and explicit instructions on learning a fundamental motor skill (throwing task) in autistic children with a high propensity for reinvestment. A total of 48 male volunteer students with special educational needs aged between 7 and 9 years old were conveniently selected to practice a novel throwing motor task (slingerball). The study includes a 1-week the acquisition phase with five phases of measurements involving four groups: a) analogy, b) explicit instruction, c) errorless, and d) errorful paradigms.

Association of Murray's law with atherosclerosis risk: Numerical validation of a general scaling law of arterial tree.

Atherogenesis is prone in medium and large-sized vessels, such as the aorta and coronary arteries, where hemodynamic stress is critical. Low and oscillatory wall shear stress contributes significantly to endothelial dysfunction and inflammation. Murray's law minimizes energy expenditure in vascular networks and applies to small arteries.

Apparent and standardized ileal digestibility of calcium in wheat and soybean meal for growing quail chicks using direct method.

Calcium (Ca) is necessary for bone health and metabolic functions in poultry, however, the extent to which it can be utilized varies among feed ingredients. The goal of this study was to determine the apparent ileal digestibility (AID) and standardized ileal digestibility (SID) of calcium in wheat and soybean meal (SBM) in young quail chicks using a direct method. Three dietary treatments were used in the experiment: a calcium-free basal diet to determine endogenous calcium losses, and two diets with either wheat or SBM as the primary calcium sources.

Advancing burn wound healing with an innovative in situ gelling probiotic microparticle formulation employing quality by design (QbD) principles.

Scientists investigated probiotic-containing dressings to address the challenges associated with burn injuries, namely infection and antimicrobial resistance. The present investigation sought to evaluate the impact of innovative probiotic-loaded microparticles with in situ gelling characteristics on infected burns. The strain, Lactiplantibacillus plantarum, was selected due to its demonstrated wound-healing potential.

Assessment of Reperfusion Efficacy of Altelyse Versus Actilyse in Patients with Acute Myocardial Infarction: A Phase 3, Randomized, Double-Blinded, Non-inferiority Clinical Trial.

Background: Primary percutaneous coronary intervention (PPCI) and fibrinolytic or thrombolytic therapy are common treatments for ST-elevation myocardial infarction (STEMI). Primary percutaneous coronary intervention is more effective than thrombolytic therapy, but fibrinolytic therapy is still a preferable option for patients with limited access to healthcare. Alteplase is a tissue plasminogen activator (tPA) used to treat acute myocardial infarction, acute ischemic stroke, and pulmonary embolism.

The effect of combined low-level nd: YAG laser with mesenchymal stem cells in the healing of diabetic wounds: an experimental study.

Although the role of low-level laser therapy (LLLT) and human adipose-derived stem cells (hADSC) in accelerating diabetic wound healing has been proven, their synergistic effect is still debated. This study aimed to evaluate the individual and combined effects of LLLT and hADSC on wound healing and on biomechanical parameters in type 2 diabetic rabbits. In this experimental study, 40 rabbits with type 2 diabetes (induced by streptozotocin (STZ)) were included.

Vesicoureteral Reflux in Children with Accidental Diagnosis of Unilateral Small Size Kidney.

Objective: A majority of small size kidney in children were diagnosed after a urinary tract infection (UTI) and with high-grade vesicoureteral reflux (VUR). This study was conducted in children who were diagnosed accidentally and investigated for VUR and UTI.

Methods: This longitudinal retrospective study was conducted in children with a diagnosis of a small kidney accidentally discovered by ultrasonography and referred to Children's Hospital in Babol, Iran, between 2012-2022.

One-pot reaction of 3-vinylchromones, aromatic aldehydes, and ammonium acetate: an efficient approach to highly functionalized 1,6-dihydropyridine derivatives.

In this work, we present an efficient strategy for the straightforward synthesis of functionalized 1,6-dihydropyridine derivatives a three-component reaction of 3-vinylchromones, aromatic aldehydes, and ammonium acetate. A tandem procedure including NH aldimine formation/Michael-type addition/opening of the pyrone ring/isomerization/6π-electrocyclization/[1,5]-H shift allows rapid access to a series of dihydropyridines bearing an -hydroxybenzoyl and a benzoyl scaffold in good yields. Readily available precursors, simple heating conditions, and operational simplicity are some highlighted advantages of this transformation.

Investigating the status of the second victims of error and related factors in nurses: a description study.

Background: Errors not only affect patients as the primary victim but also have a negative impact on nurses as the secondary victim; therefore, understanding the reasons for the second victim's error, as well as the elements that contribute to this phenomenon, is critical for managing the mistake. The main purpose of this research was to determine the status of second victims of error and related factors in nurses.

Methods: This is an analytical-descriptive study conducted in Iran.

Understanding the pros and cons of spine surgery for ankylosing spondylitis: experience from a single institution study.

Introduction: Ankylosing Spondylitis (AS) presents a complex inflammatory condition with significant impact on patients' lives. Despite advancements in understanding its pathogenesis, comprehensive elucidation remains elusive. This study investigates the outcomes of corrective spine surgery in AS patients, aiming to optimize management strategies.

Major heavy metals and human gut microbiota composition: a systematic review with nutritional approach.

Background: The human gut microbiota has a critical role in several aspects of host homeostasis, such as immune development, metabolism, nutrition, and defense against pathogens during life. It can be sensitive to xenobiotics including drugs, diet, or even environmental pollutants, especially heavy metals (HMs). The findings of some previous studies are heterogeneous due to the inclusion of various types of study (human, and animal studies) and wide exposures (phthalate, bisphenol A, HMS, etc.

Clients' experiences in their first entry to the operating room: a descriptive phenomenological study.

Background: The unfamiliar atmosphere of the operating room, waiting for anesthesia, and the process of surgery and anesthesia are some of the factors causing fear and anxiety in patients. It leads to physical and psychological pressure on patients. Better understanding of patients' feelings, beliefs, or fears and recording their experiences for optimal care after surgery is helpful.

Teaching healthy lifestyle behaviors based on philosophical thinking to preschool children: a randomized controlled trial.

Background: The promotion of a healthy lifestyle among preschool children is essential for establishing their future habits. Evidence indicates that the incorporation of philosophical thinking-encompassing critical, creative, and compassionate thought-can significantly contribute to children's cognitive and moral growth, thereby positively affecting their health-related decisions. This research evaluated the effects of imparting healthy lifestyle practices through philosophical thinking to preschool children.

Early osteogenic differentiation of human dental stem cells by gelatin/calcium phosphate- Punica granatum nanocomposite scaffold.

Background: Tissue engineering for bone regeneration aims to heal severe bone injuries. This study aimed to prepare and assess the early osteogenic differentiation effects of a gelatin/calcium phosphate- Punica granatum nanocomposite scaffold on stem cells from human exfoliated deciduous (SHED) and human dental pulp stem cells (HDPSCs).

Methods: The electrospinning method was used to prepare a gelatin/calcium phosphate nanocomposite scaffold containing pomegranate (Punica granatum) extract.

The effect of a comprehensive intervention on anthropometric indices, dietary intake, and physical activity of adolescent boys with overweight.

Background: Non-communicable diseases in adulthood are reported to be strongly associated with adolescent obesity. The present study aimed to assess the effect of a comprehensive lifestyle modification intervention on the anthropometric indices, dietary intake, and physical activity of adolescent boys with overweight.

Methods: This pragmatic trial was conducted on 126 adolescent boys with overweight.

Assessment of the quality of life in metastatic colorectal cancer patients with KRAS gene mutant: a case-control study.

Background: The mutation of the KRAS (Kirsten rat sarcoma virus) gene is a prevalent genetic alteration in metastatic colorectal cancer (mCRC). According to previous research, this mutation significantly affects clinical outcomes and quality of life (QOL). This research investigated the association between KRAS mutant status and various aspects of QOL in mCRC patients.

Graphene oxide-enhanced photothermal therapy: laser parameter optimization and temperature modeling for hela cancer cell mortality.

Photothermal therapy, in which a laser is an effective tool, is a promising method for cancer treatment. Laser parameters, including power, irradiation time, type of laser radiation (continuous or chopped), and the concentration of the photothermal agent, can affect the efficiency of this method. Therefore, this study investigated and compared the effects of different laser parameters on the efficiency of photothermal treatment for cervical cancer, which is the fourth most prevalent cancer in women.

Experimental study on the simultaneous effect of smart water and clay particles on the stability of asphaltene molecule and emulsion phase.

Enhancing oil recovery in sandstone reservoirs, particularly through smart water flooding, is an appealing area of research that has been thoroughly documented. However, few studies have examined the formation of water-in-heavy oil emulsion because of the incompatibility between the injected water-folded ions, clay particles, and heavy fraction in the oil phase. In this study, we investigated the synergistic roles of asphaltene and clay in the smart water flooding process using a novel experimental approach.

Modeling future sediment retention service in the Bagh-e-Shadi Forest protected area using InVEST and the ACCESS-ESM1-5 climate model.

Assessing the impact of climate change on water-related ecosystem services (ES) in Protected Areas (PAs) is essential for developing soil and water conservation strategies that promote sustainability and restore ES. However, the application of ES research in Protected Area (PA) management remains ambiguous and has notable shortcomings. This study primarily aimed to assess the SDR-InVEST (Sediment Delivery Ratio-Integrated Valuation of Ecosystem Services and Tradeoffs) model for estimating ES, including soil loss, sediment export, and sediment retention, under various climate change scenarios from 1997 to 2100 in the data-scarce region of the Bagh-e-Shadi Forest PA.

FeO@HA-Cu(OAc) nanocomposite as a nanomagnetic water-compatible catalyst for efficient synthesis of 1,2,3-triazoles in water.

A new humic acid-based nanomagnetic copper(II) composite was prepared and used as an eco-friendly recoverable catalyst for synthesizing 1,4-disubstituted 1,2,3-triazoles. The synthesis was done via the three-component click reaction of alkyl halide, sodium azide, and terminal alkyne with good to excellent yield. A simple magnetic copper acetate composite, FeO@HA-Cu(OAc), was prepared using humic acid and characterized by SEM, TEM, XRD, EDX, EDS-mapping, VSM, TGA, AAS, and FT-IR.