Modeling of lifetime scenarios with non-monotonic failure rates.

The Weibull distribution is an important continuous distribution that is cardinal in reliability analysis and lifetime modeling. On the other hand, it has several limitations for practical applications, such as modeling lifetime scenarios with non-monotonic failure rates. However, accurate modeling of non-monotonic failure rates is essential for achieving more accurate predictions, better risk management, and informed decision-making in various domains where reliability and longevity are critical factors.

Accurate Molar Mass Estimation of Polyolefin Blends Using High Temperature-size Exclusion Chromatography With Triple Detection: Insight Into Molecular Level Mixing of Polypropylene With Various Application Grades of Polyethylene.

In this study, a commercially available polypropylene homopolymer (H-PP) was blended with blow molding polyethylene (PE) grade via melt mixing using a compounding machine. The resulting blends were subjected to high-temperature size exclusion chromatography (SEC) analysis, coupled with infrared-5 (IR-5), viscometer (VISCO), and multi-angle laser light scattering (MALS) detectors. The molecular weight (MW) and MW distributions were investigated using SEC, and the exact blend compositions were evaluated using C nuclear magnetic resonance.

Impact of urgent care centers on emergency department visits in Al Madina Al Munawara: A pre-post study.

Objectives: To evaluate the impact of UCCs on reducing non-urgent Emergency Department (ED) visits and improving patient flow, focusing on metrics such as door-to-doctor time, doctor-to-decision time, and overall patient disposition.

Methods: This observational cohort pre-post study analyzed data from 198,050 ED visits to King Fahad Hospital, Al Madina Al Munawara between June 2021 and May 2023 and compared visit patterns before and after UCC implementation.

Results: Post-UCC implementation, the average door-to-doctor time decreased but was not statistically significant.

Robotic Versus Manual Electrode Insertion in Cochlear Implant Surgery: An Experimental Study.

Objectives: This experimental study compares the precision and surgical outcomes of manual versus robotic electrode insertions in cochlear implantation.

Methods: Conducted on formalin-fixed cadaveric heads, the study involved nine senior neurotologists performing both manual and robotic insertions.

Results: The results showed no statistically significant difference between the two methods in insertion angle, cochlear coverage, or electrode coverage.

Eating Attitudes and Characteristics of Physical Activity Practitioners and Athletes in Riyadh, Saudi Arabia.

Disordered eating among athletes and physical activity practitioners is a growing concern that can negatively impact health and performance. Understanding the prevalence and predictors of disordered eating in these populations is essential for developing effective interventions. To investigate disordered eating tendencies among athletes and physical activity practitioners in Riyadh, Saudi Arabia.

Knowledge, Awareness, and Attitudes Towards HPV and Its Vaccination Among Women in the Medina Region: A Cross-Sectional Study.

Background: HPV represents one of the most common sexually transmitted infections worldwide, with significant adverse clinical consequences such as cervical cancer. However, the knowledge and awareness regarding HPV and its vaccination, particularly among Saudi women, are still under debate. Our study aims to investigate the knowledge, awareness, and attitude toward HPV and its vaccines among women in the Medina region.

The hidden link: Investigating functional connectivity of rarely explored sub-regions of thalamus and superior temporal gyrus in Schizophrenia.

Functional magnetic resonance imaging (fMRI) stands as a pivotal tool in advancing our comprehension of Schizophrenia, offering insights into functional segregations and integrations. Previous investigations employing either task-based or resting-state fMRI primarily focused on large main regions of interest (ROI), revealing the thalamus and superior temporal gyrus (STG) as prominently affected areas. Recent studies, however, unveiled the cytoarchitectural intricacies within these regions, prompting a more nuanced exploration.

Hearing implants in pediatrics with cochlear nerve deficiency: an updated systematic review.

Objective: Cochlear nerve deficiency (CND) accounts for about one-third of congenital hearing loss cases and presents several challenges during management. Currently, cochlear implant (CI) and auditory brainstem implants (ABI) represent the primary management options for CND. However, robust evidence on the outcomes of different CND management approaches remains limited.

Disease Risk Score Derivation and Validation in Abu Dhabi, United Arab Emirates: A Retrospective Cohort Study.

Background: Cardiovascular disease risk assessment is a key tool in primary prevention. The ADRS (Abu Dhabi Risk Study) is a retrospective cohort study aiming to develop 10-year risk prediction equations for coronary artery disease (CAD), stroke, and atherosclerotic cardiovascular disease (ASCVD), and validate international risk equations.

Methods And Results: The 8699 participants were examined in the Abu Dhabi cardiovascular screening program from 2011 to 2013 with a subsequent average follow-up of 9.

X-ray guided anatomy-based fitting: The validity of OTOPLAN.

Background: Anatomy-based fitting (ABF) for cochlear implant users is a new era that seeks improved outcomes. Recently, different imaging modalities, such as plain X-rays, have been proposed to build the ABF as an alternative to the computed tomography (CT) scan. This study aimed to assess the feasibility and validity of OTOPLAN® software in building ABF using plain X-ray imaging.

Estimation of outer-wall length in optimizing cochlear implantation in malformed inner ears.

Estimation of cochlear length is gaining attention in the field of cochlear implants (CIs), mainly for selecting of CI electrode lengths. The currently available tools to estimate the cochlear duct length (CDL) are only valid for normal inner anatomy. However, inner ear malformation (IEM) types are associated with different degrees of cystic apices, limiting the application of CDL equations of normal anatomy inner ear.

Unearthing the hidden links: Investigating the functional connectivity between amygdala subregions and brain networks in bipolar disorder through resting-state fMRI.

Introduction: Bipolar disorder is a multifaceted psychiatric condition characterized by fluctuating activity levels and dysfunctional mood states, oscillating between manic and depressive episodes. These mood disturbances are accompanied by persistent functional and cognitive impairments, even during periods of euthymia. Prior studies have underscored the critical role of amygdala activity in the pathophysiology of bipolar disorder.

Frequency stabilization of interconnected diverse power systems with integration of renewable energies and energy storage systems.

Recent improvements in renewable energy sources (RESs) and their extensive use in the power industry have created significant issues for their operation, security, and management. Due to the ongoing reduction of power system inertia, maintaining operational frequency at its nominal value and minimizing tie-line power variations constitute essential variables for these improvements. A novel improved frequency stabilization approach based on modified fractional order tilt controller is presented for interconnected diverse power systems with integration of sea wave energy, photovoltaic, wind, energy storage system and biodiesel generator.

Improving the Cytotoxic Activity of Hinokitiol from Drug-Loaded Phytosomal Formulation Against Breast Cancer Cell Lines.

Background: This study investigates the influence of various formulation parameters on the characteristics of hinokitiol-loaded phytosomes and evaluates their anticancer potential against breast cancer cells.

Materials And Methods: Phytosomal nanoparticles were prepared and characterized for size, zeta potential, and entrapment efficiency. Morphological analysis was conducted using optical microscopy and transmission electron microscopy (TEM).

Adult Simultaneous Cochlear Implantation: Local Anesthesia.

: Cochlear implant (CI) surgery is conventionally done under general anesthesia (GA). However, many patients are unable to undergo GA due to various reasons, raising the need for an alternative safe option. CI under local anesthesia is feasible and safely done in patients who can't tolerate GA.

Predictors of medication regimen complexity and its impact on hemoglobin a1c in type 2 diabetes patients: a retrospective analysis in ambulatory care in Makkah City.

Background: Type 2 diabetes mellitus (T2DM) is a widespread chronic disease that poses a significant management challenge due to the complexity of the associated medication regimens, which can have a considerable impact on patient outcomes.

Objectives: Explore the complexity level of diabetes medications among patients with T2DM and to identify the predictors of medication regimen complexity (MRC) and its correlation with hemoglobin A1C (HbA1c) levels.

Design: Retrospective, cross-sectional study.

Functional Connectivity Profiles of Ten Sub-Regions within the Premotor and Supplementary Motor Areas: Insights into Neurophysiological Integration.

This study aimed to comprehensively investigate the functional connectivity of ten sub-regions within the premotor and supplementary motor areas (Right and Left Premotor 6d1, 6d2, 6d3, and Right and Left pre-Supplementary Motor (presma) and SMA). Using advanced magnetic resonance imaging (MRI), the objective was to understand the neurophysiological integrative characteristics of these regions by examining their connectivity with eight distinct functional brain networks. While previous studies have largely treated these areas as homogeneous entities, there is a significant gap in our understanding of the specific roles and connectivity profiles of their distinct sub-regions.

Thermally synthesized hematite (α-FeO) nanoparticles as efficient photocatalyst for visible light dye degradation.

In recent years, water pollution has become a pressing global issue because of the continuous release of organic dyes from various industries. Therefore, finding an easy way to remove these harmful dyes from water has drawn the attention of researchers. This study investigates the removal of toxic Rose Bengal (RB) dye using hematite nanoparticles as a visible light photocatalyst without any additive.

Impact of rs599839 Polymorphism on Coronary Artery Disease Risk in Saudi Diabetic Patients.

Background: Coronary artery diseases may be affected by several genetic and nongenetic factors. Single-nucleotide polymorphism (SNP) rs599839 and type 2 diabetes mellitus (T2DM) can affect the occurrence and severity of coronary artery disease (CAD).

Methods: Our aim was to investigate how T2DM and the rs599839 variant affected serum lipid levels and the degree of CAD patients' coronary artery stenosis.

Morphological, ultrastructural, and phylogenetic analysis of infecting domestic pigeons ().

species are the most common nematodes infecting pigeons. The current study investigated specific identity of nematode parasites collected from domestic pigeons () in Al-Qassim Region, Saudi Arabia. Out of 354 pigeons, 13.

The Effects of Sociodemographic Factors and BMI on Weight Stigma Among Adults With Obesity in Madinah Region, Saudi Arabia: A Cross-Sectional Analytical Study.

Introduction Weight stigma (WS), characterized by discrimination and stereotyping based on a person's weight, remains understudied in Saudi Arabia despite the country's high obesity rates. Particularly, limited research has been conducted on WS in Madinah. Understanding the factors contributing to WS in this region is crucial for developing targeted interventions to effectively address it.

Cochlear Implantation: Long-Term Effect of Early Activation on Electrode Impedance.

: The growing adoption of cochlear implants (CIs) necessitates understanding the factors influencing long-term performance and improved outcomes. This work investigated the long-term effect of early activation of CIs on electrode impedance in a large sample of CI users at different time points. : A retrospective study on 915 ears from CI patients who were implanted between 2015 and 2020.