Quality of Life of Healthcare College Students in Riyadh, Saudi Arabia.

Aim: The aim of this study was to assess the quality of life (QOL) and its influencing factors among healthcare college students in Riyadh, Saudi Arabia.

Methods: A cross-sectional study was conducted among healthcare students at King Saud University. A modified version of the Arabic World Health Organization Quality of Life-BREF (WHOQOL-BREF) questionnaire, including 25 questions, was used to assess students' QOL.

Digital technology implementation in prosthodontics postgraduate programs in Saudi Arabia: a multi-institutional survey of program directors.

Objective: To assess the current status of digital technology (DT) implementation in prosthodontics post-graduate (PG) programs in Saudi Arabian dental institutions.

Methodology: A 19-item survey was created using Google forms and the link was emailed to the 29 prosthodontics PG program directors (advanced clinical training and joint program) in Saudi Arabia. The questionnaire contained five Sect.

Oral Health-related Quality of Life of Children with Special Health Care Needs in Riyadh: A Cross-sectional Study.

Purpose: To assess children's OHRQoL and associated factors among a sample of children with special needs in Riyadh, Saudi Arabia.

Materials And Methods: A sample of 6- to 12-year-old children was obtained using convenience sampling from rehabilitation centers. Data were collected through a questionnaire and dental examination.

Corrigendum: Current phenotypic and genetic spectrum of syndromic deafness in Tunisia: paving the way for precision auditory health.

[This corrects the article DOI: 10.3389/fgene.2024.

A giant gluteal lipoblastoma in a 24-month-old girl: A case report.

Introduction And Importance: Lipoblastomas are rare benign tumors that arise from embryonic white fat and almost always occur in babies and children.

Case Presentation: Here, we report a case of a giant gluteal lipoblastoma in a 24-month-old girl that was successfully treated via complete resection.

Clinical Discussion: The gluteal location as in this case is an exceptional location.

Exploring factors influencing user perspective of ChatGPT as a technology that assists in healthcare decision making: A cross sectional survey study.

As ChatGPT emerges as a potential ally in healthcare decision-making, it is imperative to investigate how users leverage and perceive it. The repurposing of technology is innovative but brings risks, especially since AI's effectiveness depends on the data it's fed. In healthcare, ChatGPT might provide sound advice based on current medical knowledge, which could turn into misinformation if its data sources later include erroneous information.

ADME Study, Molecular Docking, Elucidating the Selectivities and the Mechanism of [4 + 2] Cycloaddition Reaction Between (E)-N ((dimethylamino)methylene)benzothioamide and (S)-3-acryloyl-4-phenyloxazolidin-2-one.

The molecular electron density theory (MEDT) was employed to examine the [4 + 2] cycloaddition reaction between (E)-N-((dimethylamino)methylene)benzothioamide (1) and (S)-3-acryloyl-4-phenyloxazolidin-2-one (2) at the B3LYP/6-311++G(d,p) design level. Parr functions and energy studies clearly show that this reaction is regio- and stereoselective, in perfect agreement with experimental results. By evaluating the chemical mechanism in terms of bond evolution theory (BET) and electron localization function (ELF), which divulges a variety of variations in the electron density along the reaction path, a single-step mechanism with highly asynchronous transition states structures was revealed.

The effect of an antibacterial mixture and non-instrumentation endodontic treatment in primary teeth: A systematic review and meta-analyses.

Studies assessing the clinical and radiographic success of LSTR in terms of the presence of pain, mobility, swelling, fistula/sinus tract, interradicular radiolucency, and root resorption have not been performed. We therefore performed a systematic review with the aim of evaluating the effectiveness of lesion sterilization and tissue repair (LSTR), using three antibacterial mixtures (3Mix), in treating primary teeth. Well-defined search strategies developed for four electronic databases, Web of Science, OVID, PubMed, and Scopus, were used in this study.

Theoretical investigation of novel electron donors for bulk heterojunction solar cells with potential photovoltaic characteristics.

Engineering electronic organic donor materials are one of the most critical steps in producing bulk-heterojunction solar cells (BHJ) with good photovoltaic properties. Compared to standard donor materials, electron donors derived from thiophene have made significant progress as they can be better suited for optoelectronics and are cheaper and more stable. Therefore, the use of new thiophene derivatives (M1-M4) as donor molecules in BHJs has been the subject of this extensive theoretical analysis.

Chromatography Scrutiny, Molecular Docking, Clarifying the Selectivities and the Mechanism of [3 + 2] Cycloloaddition Reaction between Linallol and Chlorobenzene-Nitrile-oxide.

Employing the Molecular Electron Density Theory, [3 + 2] cycloaddition processes between 4-chlorobenzenenitrileoxide and linalool, have been applied using the DFT/B3LYP/6-311(d,p) method, activation, reaction energies and the reactivity indices are calculated. In an investigation of conceptual DFT indices, LIL-1 will contribute to this reaction as a nucleophile, whilst NOX-2 will participate as an electrophile. This cyclization is regio, chemo and stereospecific, as demonstrated by the reaction and activation energies, in clear agreement with the experiment's results, in addition, ELF analysis revealed that the mechanism for this cycloaddition occurs in two steps.

New bi-phosphonate derivative: Synthesis, characterization, antioxidant activity in vitro and via cyclic voltammetry mode and evaluation of its inhibition of SARS-CoV-2 main protease.

In this study, we have synthesized a new molecule labeled HBPA. Its molecular structure was determined by spectroscopic methods such as: FT-IR, NMR (H, C and P); our compound is subjected to two antioxidant activities assays: DPPH scavenging and ferric reducing antioxidant power (FRAP); in the results, HBPA was expanded remarkable inhibition when compared especially to standard BHT with values of 14.936±0.

Wavelet-artificial neural network to predict the acetone sensing by indium oxide/iron oxide nanocomposites.

This study applies a hybridized wavelet transform-artificial neural network (WT-ANN) model to simulate the acetone detecting ability of the Indium oxide/Iron oxide (InO/FeO) nanocomposite sensors. The WT-ANN has been constructed to extract the sensor resistance ratio (SRR) in the air with respect to the acetone from the nanocomposite chemistry, operating temperature, and acetone concentration. The performed sensitivity analyses demonstrate that a single hidden layer WT-ANN with nine nodes is the highest accurate model for automating the acetone-detecting ability of the InO/FeO sensors.

A systematic review of natural language processing applications for hydrometeorological hazards assessment.

Natural language processing (NLP) is a promising tool for collecting data that are usually hard to obtain during extreme weather, like community response and infrastructure performance. Patterns and trends in abundant data sources such as weather reports, news articles, and social media may provide insights into potential impacts and early warnings of impending disasters. This paper reviews the peer-reviewed studies (journals and conference proceedings) that used NLP to assess extreme weather events, focusing on heavy rainfall events.

Determination of uranium and thorium contents in various material samples of Morocco using a new Monte Carlo code for evaluating the mean critical angle of etching of the CR-39 and LR-115 type II SSNTDs.

In this paper an original Monte Carlo code for calculating the mean critical angle of etching of the CR-39 and LR-115 type II solid state nuclear track detectors SSNTD have been developed in order to determine the levels of uranium and thorium contents in a variety of natural material samples. We have also measured these concentrations via others techniques. Results obtained by the current method are more precise than those obtained by detection efficiency and isotope dilution mass spectrometry methods.

Computational Study of New Small Molecules based Thiophene as Donor Materials for Bulk Heterojunction Photovoltaic Cells.

In this research work, we study the structural, optical, electronic, and photovoltaic properties of eight thiophene-based π-conjugated organic molecules using quantum methods namely time-dependent density functional theory. In particular, we identify the relationships between the chemical structure of these π-conjugated organic molecules and their optoelectronic properties. Moreover, we calculate and compare the highest energy occupied molecular orbital and lowest energy unoccupied molecular orbital energy levels of these compounds which act as donor with the ones of the acceptorphenyl-C-butyric acid methyl ester.

Microbial Resistance to Carbapenems in Effluents from Gynaecological, Paediatric and Surgical Hospital Units.

The aim of this work is to identify and count antimicrobial resistance (AMR) in hospital effluents (HEs) of 2 units of the University Hospital Mohamed VI the Mother and Child Hospital (MCH) and the Ar-razi Surgical Hospital (ArzH), and to compare the two hospital units in terms of ARMs and seasonal variation. Each HE was sampled during 2016 and 2017. After identification of the pathogenic strains and determination of AMR, the results were reported for 24 ABs, including 3 carbapenems (CBP), and their consumption rates.

Study of scaling problem in the region of tata (Morocco): Analysis of the elemental composition, crystalline phases, and morphologies of scale deposition in water installations.

In the region of Tata (southeast of Morocco), groundwater is the only resource for drinking and agriculture. However, the formation of mineral deposits, known as scaling, inside groundwater distribution networks and household facilities is significantly observed in this oasis area. This phenomenon leads to technical problems and substantial economic losses.

Knee tuberculosis: A misleading clinical entity (case report).

Introduction: Bone and joint infections are rare localizations of tuberculosis, and its diagnosis is challenging. The atypical clinical presentation may lead to delayed diagnosis and severe complications.

Case Presentation: We report the case of a 72-year-old female diagnosed with tuberculosis of the knee.

Dental students' attitude towards propranolol non-medical use: A multi-institutional cross-sectional study in Riyadh, Saudi Arabia.

Introduction: The lives of college students are full of various stressors. Students seek a number of stress-relieving modalities as self-prescribed beta-blockers to improve their academic performance. The aim of this study was to assess the extent of beta-blockers (propranolol) usage amongst Saudi dental students and their attitude towards its use to enhance academic performance.

Genetic algorithm with cross-validation-based epidemic model and application to the early diffusion of COVID-19 in Algeria.

A dynamical epidemic model optimized using a genetic algorithm and a cross-validation method to overcome the overfitting problem is proposed. The cross-validation procedure is applied so that available data are split into a training subset used to fit the algorithm's parameters, and a smaller subset used for validation. This process is tested on Italy, Spain, Germany, and South Korea cases before being applied to Algeria.

Corrosion inhibition performance of azelaic acid dihydrazide: a molecular dynamics and Monte Carlo simulation study.

The adsorption of azelaic acid dihydrazide as an environmentally friendly mild steel corrosion inhibitor on the iron surface was modeled in this study. We used density functional theory (DFT) calculations and Monte Carlo (MC) and molecular dynamics (MD) simulations to illustrate the interactions engaged. The interaction of the azelaic acid derivatives with iron metal (Fe) was examined by DFT as a typical example of a corrosion prevention mechanism after the optimized molecular structures of these molecules were investigated.

Fear Factor in Seeking Dental Care among Saudis during COVID-19 Pandemic.

The recent coronavirus disease of 2019 (COVID-19) pandemic led to major lifestyle changes. The present study sought to assess factors associated with fear to seek dental care during COVID-19 pandemic in Saudi Arabia. This cross-sectional study was conducted during the COVID-19 outbreak in 2020.

Alpha-mannosidosis in Tunisian consanguineous families: Potential involvement of variants in GHR and SLC19A3 genes in the variable expressivity of cognitive impairment.

Alpha-Mannosidosis (AM) is an ultra-rare storage disorder caused by a deficiency of lysosomal alpha-mannosidase encoded by the MAN2B1 gene. Clinical presentation of AM includes mental retardation, recurrent infections, hearing loss, dysmorphic features, and motor dysfunctions. AM has never been reported in Tunisia.