Knowledge, Attitude, and Practice in Dental Trauma Management Among Schoolteachers in Taif, Saudi Arabia.

In Saudi Arabia, dental trauma is regarded as one of the most important issues affecting schoolchildren. This study evaluated Saudi Arabian schoolteachers' knowledge, attitude, and practice regarding emergency dental trauma management. A cross-sectional study was conducted on 263 schoolteachers from 25 schools; 50.

Sequential Pore Functionalization in MOFs for Enhanced Carbon Dioxide Capture.

The capture of carbon dioxide (CO) is crucial for reducing greenhouse emissions and achieving net-zero emission goals. Metal-organic frameworks (MOFs) present a promising solution for carbon capture due to their structural adaptability, tunability, porosity, and pore modification. In this research, we explored the use of a copper (Cu(II))-based MOF called .

Enhanced Carbon Dioxide Capture from Diluted Streams with Functionalized Metal-Organic Frameworks.

Capturing carbon dioxide from diluted streams, such as flue gas originating from natural gas combustion, can be achieved using recyclable, humidity-resistant porous materials. Three such materials were synthesized by chemically modifying the pores of metal-organic frameworks (MOFs) with Lewis basic functional groups. These materials included aluminum 1,2,4,5-tetrakis(4-carboxylatophenyl) benzene (Al-TCPB) and two novel MOFs: Al-TCPB(OH), and Al-TCPB(NH), both isostructural to Al-TCPB, and chemically and thermally stable.

Polymeric nanoparticles loaded with vincristine and carbon dots for hepatocellular carcinoma therapy and imaging.

Chemotherapy for hepatoblastoma is limited by organ toxicity and poor outcomes, prompting the search for new, more effective treatments with minimal side effects. Vincristine sulfate, a potent chemotherapeutic, faces challenges due to P-glycoprotein-mediated resistance and its systemic toxicity. Nanoparticles offer a promising solution by improving pharmacokinetics, targeting tumor cells, thus reducing side effects.

Evaluating various properties of nanohydroxyapatite synthesized from eggshells and dual-doped with Si and Zn: An in vitro study.

Background: This study aimed to evaluate morphological, chemical and biocompatible properties of nanohydroxyapatite (N-HA) synthesized from eggshells and dual-doped with Si4+ and Zn2+.

Methods: In the current study, N-HA was synthesized from chicken eggshells using the wet chemical precipitation method and doped with Si4+ and Zn2+. The physical assessment was carried out using field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray (EDX) analysis, and X-ray diffraction (XRD) analysis.

Synthesis and physicochemical characterization of carbon quantum dots produced from folic acid.

The rising interest in carbon dots (c-dots) is driven by their remarkable potential in the field of biomedical applications. This is due to their distinctive and adjustable photoluminescence characteristics, outstanding physicochemical properties, excellent photostability, and biocompatibility. Herein, carbon dots were successfully produced via the heat synthesis method and characterization for physical and chemical properties using UV-Vis spectrophotometer, photoluminescence spectroscopy, Fourier Transform Infrared and Raman spectroscopy, Energy-dispersive X-ray analysis, and quantum yield.

Assessing the Anxiety and Knowledge about Monkeypox Virus: A Cross-Sectional Cohort Study.

Introduction Recent cases of human monkeypox virus (MPXV) infections have raised global health concerns, as sporadic instances have occurred in various regions, prompting investigations into the potential for increased transmission. This underscores the importance of effective communication strategies in addressing the emerging challenges associated with this viral ailment. The study was conducted to understand public anxiety and knowledge related to MPXV infection, particularly in the context of emerging infectious diseases.

Radiographic evaluation of alveolar ridge preservation using a chitosan/polyvinyl alcohol nanofibrous matrix: A randomized clinical study.

The objective of this randomized clinical trial (RCT) was to assess the effectiveness of electrospun chitosan/polyvinyl alcohol (CS/PVA) nanofibrous scaffolds in preserving the alveolar ridge and enhancing bone remodeling following tooth extraction when compared to a control group. In this split RCT, 24 human alveolar sockets were randomly assigned to two groups, with 12 sockets receiving CS/PVA nanofibrous scaffold grafts (test group) and 12 left to heal by secondary intention as the control group. Cone-beam computed tomography (CBCT) was performed at two different time points: immediately after extraction (T0) and 4 months post-extraction (T4).

Recurrent Urinary Tract Infection in Adult Patients, Risk Factors, and Efficacy of Low Dose Prophylactic Antibiotics Therapy.

Background: Recurrent urinary tract infection (UTI) occurs in sizable percentages of patients after a single episode and is a frequent cause of primary healthcare visits and hospital admissions, accounting for up to one quarter of emergency department visits. We aim to describe the pattern of continuous antibiotic prophylaxis prescription for recurrent urinary tract infections, in what group of adult patients they are prescribed and their efficacy.

Methods: A retrospective chart review of all adult patients diagnosed with single and recurrent symptomatic urinary tract infection in the period of January 2016 to December 2018.

Evaluation of the Chemical, Morphological, Physical, Mechanical, and Biological Properties of Chitosan/Polyvinyl Alcohol Nanofibrous Scaffolds for Potential Use in Oral Tissue Engineering.

Background Chitosan is a biocompatible, biodegradable, and non-toxic natural polymer that can be fabricated by different methods for use in dental and biomedical fields. Electrospinning can produce polymeric nanofibrous scaffolds and membranes with desirable properties for use in tissue engineering. The objectives of this study were to investigate several morphological, physical, and biological characteristics of these nanofibrous scaffolds and evaluate their potential use in tissue engineering.

Perceptions of Dietary Factors Promoting and Preventing Kidney Stones Among Taif City Population - A Cross-Sectional Study.

Background And Aim: Renal stones are the most common urological disorder resulting in different marked morbidities with different risk factors. This study aimed to assess the perceptions of the general population regarding dietary factors in promoting and preventing nephrolithiasis in the Taif region.

Methods: We carried out this cross-sectional study during a period of 4 months.

Investigation of Cytotoxicity of Biosynthesized Colloidal Nanosilver against Local : In Vitro Study.

Leishmaniasis is one of the biggest health problems in the world. Traditional therapeutic methods still depend on a small range of products, mostly chemically. However, the treatment with these drugs is expensive and can cause serious adverse effects, and they have inconsistent effectiveness due to the resistance of parasites to these drugs.

Green Synthesis of Silver Nanoparticles Using L. Aqueous Extract with the Evaluation of Its Antibacterial Activity against Clinical and Food Pathogens.

The rapid development of nanotechnology and its applications in medicine has provided the perfect solution against a wide range of different microbes, especially antibiotic-resistant ones. In this study, a one-step approach was used in preparing silver nanoparticles (AgNPs) by mixing silver nitrate with hot (St. John's wort) aqueous extract under high stirring to prevent agglomeration.

Influence of Polyvinylpyrrolidone Concentration on Properties and Anti-Bacterial Activity of Green Synthesized Silver Nanoparticles.

Environmentally green synthesis of stable polyvinyl pyrrolidone (PVP)-capped silver nanoparticles (PVP-AgNPs) was successfully carried out. The present study focused on investigating the influence of adding PVP during the synthesis process on the size, optical properties and antibacterial effect of silver nanoparticles produced. An aqueous extract of leaves was used as a reducing agent.

Identification of Major Constituents of L. Extracts in Syria by Development of a Rapid, Simple, and Reproducible HPLC-ESI-Q-TOF MS Analysis and Their Antioxidant Activities.

Linn () is a popular and widespread medicine in Syria, which is used for a wide range of conditions, including gastrointestinal diseases, heart disease, skin diseases, and psychological disorders. This widespread use prompted us to identify the main compounds of this plant from Syria that are responsible for its medicinal properties, especially since its components differ between countries according to the nature of the soil, climate, and altitude. This is, to the best of our knowledge, the first report in which , a plant native to Syria, is extracted using different solvents and its most important compounds are identified.

Incidence and prevalence of violence toward health care workers in emergency departments: a multicenter cross-sectional survey.

Background: Workplace violence and abuse in the emergency department (ED) has increasingly become a serious and alarming phenomenon worldwide where health care professionals are more prone to violence compared with other specialties.

Aims: We aimed to estimate prevalence, and types of work place violence made against health care workers (HCW) in emergency departments of Arabian Gulf area.

Methods: We performed a descriptive cross-sectional study at several emergency departments in Saudi Arabia and United Arab Emirates wherein a previously validated questionnaire was distributed among health care workers.

Weight Changes in Women Receiving Chemotherapy for Non-Metastatic Breast Cancer in Saudi Arabia.

Background Women with breast cancer (BC) commonly experience weight gain during chemotherapy, although there is conflicting evidence regarding the contributing factors. This study aimed to evaluate body weight changes among women undergoing chemotherapy for non-metastatic BC during the first year after diagnosis, and to determine whether baseline body weight and/or hemoglobin concentration values were associated with weight changes during chemotherapy. Methods This retrospective study evaluated patients who were treated at the King Abdulaziz University Hospital (Saudi Arabia) during 2010-2019.

In-vitro anticancer activity against Caco-2 cell line of colloidal nano silver synthesized using aqueous extract of leaves.

In the current study, we investigated the anticancer potential against human colon cells (Caco-2) of colloidal nanosilver (CN-Ag) produced in Syria using bioactive compounds in the aqueous extract of leaves (AEECL). The formation of AgNPs was confirmed by UV-visible spectroscopy analysis with surface plasmon peak at 449 nm and their average size was found to be 12, 10, 23 nm by SEM, DLS and NTA respectively. This small size has confirmed the effective role of AEECL as capping agent.

Effect of Isopropyl Alcohol Concentration and Etching Time on Wet Chemical Anisotropic Etching of Low-Resistivity Crystalline Silicon Wafer.

A micropyramid structure was formed on the surface of a monocrystalline silicon wafer (100) using a wet chemical anisotropic etching technique. The main objective was to evaluate the performance of the etchant based on the silicon surface reflectance. Different isopropyl alcohol (IPA) volume concentrations (2, 4, 6, 8, and 10%) and different etching times (10, 20, 30, 40, and 50 min) were selected to study the total reflectance of silicon wafers.

Quality of life in transfusion-dependent thalassemia patients.

Objectives: Thalassemia is the most common genetic disorder in the Mediterranean region. Despite recent advances in the management of thalassemia, people living in developing countries do not receive satisfactory treatment. For such chronic conditions, not only is patients' survival important but their quality of life (QOL) is also important, which is primarily driven by psychological and social constraints.

Pulmonary hypertension and vasculopathy in incontinentia pigmenti: a case report.

Incontinentia pigmenti (IP; Bloch-Sulzberger syndrome) is a rare, genetic syndrome inherited as an X-linked dominant trait. It primarily affects female infants and is lethal in the majority of males during fetal life. The clinical findings include skin lesions, developmental defects, and defects of the eyes, teeth, skeletal system, and central nervous system.

An evaluation of two types of nickel-titanium wires in terms of micromorphology and nickel ions' release following oral environment exposure.

Background: This study aimed to compare superelastic and heat-activated nickel-titanium orthodontic wires' surface morphology and potential release of nickel ions following exposure to oral environment conditions.

Methods: Twenty-four 20-mm-length distal cuts of superelastic (NiTi Force I®) and 24 20-mm-length distal cuts of heat-activated (Therma-Ti Lite®) nickel-titanium wires (American Orthodontics, Sheboygan, WI, USA) were divided into two equal groups: 12 wire segments left unused and 12 segments passively exposed to oral environment for 1 month. Scanning electron microscopy and atomic force microscopy were used to analyze surface morphology of the wires which were then immersed in artificial saliva for 1 month to determine potential nickel ions' release by means of atomic absorption spectrophotometer.