Revealing the reaction path of UVC bond rupture in cyclic disulfides with ultrafast x-ray scattering.

Disulfide bonds are ubiquitous molecular motifs that influence the tertiary structure and biological functions of many proteins. Yet, it is well known that the disulfide bond is photolabile when exposed to ultraviolet C (UVC) radiation. The deep-UV-induced S─S bond fragmentation kinetics on very fast timescales are especially pivotal to fully understand the photostability and photodamage repair mechanisms in proteins.

Energy-exergy and environ-economic (4E) analysis of heat storage-based single-slope solar stills integrated with solar air heater.

The energy-exergy and environ-economic (4E) analysis was conducted on a solar still with and without a hybrid thermal energy storage system (TESS) and a solar air heater. The proposed solar still was modified by integrating a rectangular aluminium box filled with paraffin wax and black gravel as the TESS and coupled with a solar air heater. Paraffin wax was selected due to its widespread availability and proven effectiveness in accelerating desalination, improving process uniformity, and maintaining optimal temperature levels.

The influence of board, CEO, and audit committee chairman busyness on the value relevance of accounting information in Saudi listed firms.

This study investigates the impact of board, CEO, and audit committee chairman busyness on the value relevance of accounting information in Saudi listed firms from 2018 to 2022. Utilizing a data of 125 Saudi firms, the research investigates how the busyness of these key governance figures influences the relevance of earnings per share (EPS) and book value per share (BVPS). The findings reveal that board and audit committee chairman busyness significantly enhance the value relevance of EPS, suggesting that their broader networks and strategic oversight improve financial reporting.

Phytochemical analysis and biological activities of solvent extracts and silver nanoparticles obtained from Woodwardia unigemmata (Makino) Nakai.

Multidrug resistant bacteria are causing health problems and economic burden worldwide; alternative treatment options such as natural products and nanoparticles have attained great attention recently. Therefore, we aimed to determine the phytochemicals, antibacterial potential, and anticancer activity of W. unigemmata.

Exploring the efficacy of drought tolerant, IAA-producing plant growth-promoting rhizobacteria for sustainable agriculture.

The growing human population and abiotic stresses pose significant threats to food security, with PGPR favorable as biofertilizers for plant growth and stress relief. In one study, soil samples from both cultivated and uncultivated plants in various cities were used to isolate rhizobacterial populations. Using 50 soil samples from both cultivated and uncultivated plants, isolated rhizobacterial populations were screened for various biochemical changes, PGP activities and morphological characteristics.

KMT2C Polymorphism in Familial Hypospadias.

Hypospadias, a common congenital anomaly of male genitalia, shows significant heritability and familial recurrence, particularly in consanguineous families. This study explored the role of KMT2C polymorphisms in a Yemeni family with two affected siblings. Comprehensive analysis identified 475 unique SNPs in KMT2C, with 59 shared between parents, suggesting common ancestry.

Surgical Parameters and Prognostic Factors in Persistent Fetal Vasculature: Insights from a Retrospective Cohort Study.

Introduction: Persistent fetal vasculature (PFV) is a congenital anomaly associated with significant surgical challenges, including a high risk of postoperative retinal detachment (RD). This study aimed to evaluate the impact of surgical approach and axial length (AL) on RD risk and visual outcomes in pediatric PFV management.

Methods: A retrospective cohort study was conducted involving 76 eyes of 74 patients who underwent cataract surgery for PFV between 2014 and 2022.

Green Synthesis of Eosin-Y Coated Silver Nanoparticles for Sensitive and Selective Fluorometric Detection of L-Dopa.

This study is to produce biogenic silver nanoparticles (AgNPs) by utilizing aqueous extracts derived from Turnera Sublata (TS) leaves under visible light. Subsequently, these nanoparticles are coated with eosin-yellow (EY) to enhance sensitivity and selectivity in L-3,4-dihydroxyphenylalanine (L-dopa) detection. This method encompasses the deposition of metal onto the Ag NPs, resulting in the formation of EY-AgNPs.

Excited-State Rotational Dynamics of Amine-Functionalized Terephthalic Acid Derivatives as Linker Models for Metal-Organic Frameworks.

Understanding how structural modifications affect the photophysics of organic linkers is crucial for their integration into metal-organic frameworks (MOFs) for light-driven applications. This study explores the impact of varying the amine functional group position on two terephthalic acid derivatives─linker and linker ─by investigating their photophysics through a combination of steady-state and ultrafast laser spectroscopy and time-dependent density functional theory (TD-DFT) calculations. With tetrahydrofuran as the solvent, time-correlated single-photon counting revealed a 2-fold increase in the S excited-state lifetime of the molecule with the amine group at the meta position compared with that of the molecule with the amine group at the ortho position.

Patient perceptions of osteoporosis management: a qualitative pilot study by a patient advisory group.

Unlabelled: The management of osteoporosis even after a fracture is declining. Our pilot study in patients with osteoporosis confirms a large ignorance of the disease and major fears and uncertainties about the treatments. Complete and sustained medical information seems essential to counteract the contradictory information, which are exclusively negative.

The effect of spaced vs massed repetition on variability phonetic training among Saudi English as foreign language learners.

This study investigated the effects of spaced and massed repetition on the acquisition and retention of English /b/ and /p/ sounds among Saudi English as a foreign language (EFL) learners. Forty-nine university students participated in a quasi-experimental design comparing two learning conditions: massed repetition and spaced repetition. Participants were taught the pronunciation of 40 new English words containing the target sounds through video-based instruction.

Control of the Phase Distribution in TMDs by Strain Engineering and Kirigami Techniques.

Materials exhibiting both metallic and semiconducting states, including two-dimensional transition metal dichalcogenides (TMDs), have numerous applications. We therefore investigate the effects of axial and shear strains on the phase energetics of pristine and striped TMDs using density functional theory and classical molecular dynamics simulations. We demonstrate that control of the phase distribution can be achieved by the integration of strain engineering and Kirigami techniques.

Fever Prevention and Neurological Recovery in In-Hospital Cardiac Arrest Survivors at a Limited-Resource Setting.

Temperature management plays a critical role in the neurological recovery of cardiac arrest survivors. While advanced device-based temperature control systems are prevalent in high-resource settings, their implementation in low-resource environments remains a challenge. This study aimed to examine the impact of fever prevention on neurological outcomes in cardiac arrest survivors managed without device-based temperature control.

Predictors of Dental Misconceptions Among Taif Population, Saudi Arabia.

Purpose: Health education programmes play a crucial role in enhancing oral health literacy and improving treatment outcomes. However, myths and misconceptions about oral health are widespread, affecting individuals' behaviours and their willingness to seek appropriate treatment. This study aimed to investigate the prevalence of oral health myths and misconceptions among adults in Taif, Saudi Arabia, and to explore potential associations with demographic factors.

Exploring the role of quantitative electroencephalography in ischaemic stroke through spectral and topographic mapping.

Introduction: Stroke is a major cause of morbidity and mortality worldwide. While electroencephalography (EEG) offers valuable data on post-stroke brain activity, qualitative EEG assessments may be misinterpreted. Therefore, we examined the potential of quantitative EEG (qEEG) to identify key band frequencies that could serve as potential electrophysiological biomarkers in stroke patients.

An Integrative Computational Approach for the Identification of C-Abl Kinase Inhibitors from Anti-Parkinson Plant-Derived Bioactive.

Background: Oxidative stress is strongly linked to neurodegeneration through the activation of c-Abl kinase, which arrests α-synuclein proteolysis by interacting with parkin interacting substrate (PARIS) and aminoacyl tRNA synthetase complex-interacting multifunctional protein 2 (AIMP2). This activation, triggered by ataxia-telangiectasia mutated (ATM) kinase, leads to dopaminergic neuron loss and α-synuclein aggregation, a critical pathophysiological aspect of Parkinson's disease (PD). To halt PD progression, pharmacological inhibition of c-Abl kinase is essential.

Identification of Natural Terpenoid Compounds as Potential Inhibitors of Nucleoprotein of Influenza A Virus using in silico Approach: ADMET, Molecular Docking, and Molecular Dynamic Simulation.

Background: We continue to struggle with the prevention and treatment of the influenza virus. The 2009 swine flu pandemic, caused by the H1N1 strain of influenza A, resulted in numerous fatalities. The threat of influenza remains a significant concern for global health, and the development of novel drugs targeting these viruses is highly desirable.

Betanin Mitigates Inflammation and Ankle Joint Damage by Subduing the MAPK/NF-κB Pathway in Arthritis Triggered by Type II Collagen in Rats.

Background: Rheumatoid Arthritis (RA), a chronic inflammatory autoimmune illness, is characterized by synovitis, progressive joint damage, and bone erosion. Even though the potent drugs available contain biologics, several patients fail to react to them or cause hostile effects.

Objectives: Betanin (BTN), the betacyanin present in the red beetroot, has antioxidant, antiinflammatory, and apoptotic properties.

Exploration of Novel Therapeutic Targets for Breast Carcinoma and Molecular Docking Studies of Anticancer Compound Libraries with Cyclin-dependent Kinase 4/6 (CDK4/6): A Comprehensive Study of Signalling Pathways for Drug Repurposing.

Aims: This study aims to identify and evaluate promising therapeutic proteins and compounds for breast cancer treatment through a comprehensive database search and molecular docking analysis.

Background: Breast cancer (BC), primarily originating from the terminal ductal-lobular unit of the breast, is the most prevalent form of cancer globally. In 2020, an estimated 2.

Protective Effect of Vitamin D Supplementation Against Atherosclerotic Cardiovascular Disease in Type 1 Diabetes Mellitus Model.

Introduction: Cardiovascular disease (CVD) is a leading cause of mortality on a global scale, with a higher prevalence observed among men. This study investigated the protective effect of vitamin D supplementation on CVD.

Methods: A cohort of thirty mice was divided into three groups: control, T1 diabetic, and T1 diabetic groups that received vitamin D treatment.

Navigating Children's Risky Play: A Comparative Analysis of Saudi Mothers and Fathers.

Despite documented benefits for development, children are engaging in considerably fewer risky play activities. Research on parent gender and children's risky play is inconsistent. Gender and cultural context shape how individuals perceive and tolerate children's risky play.

Tunnel barriers for Fe-based spin valves providing high spin-polarized current.

Employing density functional theory for ground state quantum mechanical calculations and the non-equilibrium Green's function method for transport calculations, we investigate the potential of CdS, ZnS, CdZnS, and ZnCdS as tunnel barriers in magnetic tunnel junctions for spintronics. Based on the finding that the valence band edges of these semiconductors are dominated by p orbitals and the conduction band edges by s orbitals, we show that symmetry filtering of the Bloch states in magnetic tunnel junctions with Fe electrodes results in high tunneling magnetoresistances and high spin-polarized current (up to two orders of magnitude higher than in the case of the Fe/MgO/Fe magnetic tunnel junction).

Stress level and coping strategies among intensive care nurses: A cross-sectional study.

Background: Intensive care units (ICUs) are high-stress environments, particularly for nurses, who face numerous stressors that can negatively impact their well-being. This study aimed to examine stress levels and stressors among ICU nurses, investigate their stress coping strategies, and explore the primary stressors in this demanding work environment.

Materials And Methods: Employing a cross-sectional design, this study assessed the stress levels of ICU nurses by using the Perceived Stress Scale and their coping strategies through the Brief-COPE scale, from March 15, 2021, to April 14, 2021.

Quality of life for patients on oncology treatments in the Kingdom of Saudi Arabia: a systematic review.

Background: Cancer cases in the Kingdom of Saudi Arabia (KSA) have tripled in recent years. Quality of Life (QoL) measurements are crucial for healthcare professionals because they reveal important information about how patients respond to drugs and their general health. This study aimed to collect and summarise articles exploring the QoL of patients undergoing oncology treatments in KSA.

Lip Melanosis Postdermal Filler Injection: Second Case Report and Literature Review.

Oral pigmentation can arise from various factors, including physiological and pathological, or as a manifestation of an underlying systemic disease. We present an atypical case of dermal filler-related complication, in which clinical lip pigmentation was observed. This condition can pose a diagnostic challenge in accurately identifying its cause.