The Impact of Androgenic Alopecia on the Quality of Life of Male Individuals: A Cross-Sectional Study.

Background Hair plays a significant role in physical appearance and hair loss can profoundly affect self-esteem and mental health. Studies show that people with clinically obvious and undetectable hair loss may have dramatically decreased quality of life (QoL). This study investigated the impact of androgenic alopecia on the quality of life of male individuals in the Eastern Province of Saudi Arabia and their willingness to seek treatment.

Magnitude and Determinants of Computer Vision Syndrome among College Students at a Saudi University.

Purpose: To review students' perceived symptom-based computer vision syndrome (CVS) and its determinants and to suggest preventive measures.

Methods: This cross-sectional survey was conducted in 2021 at a university in Central Saudi Arabia. The presence and severity of symptoms related to CVS were investigated.

Single step calcium sulfate scale removal at high temperature using tetrapotassium ethylenediaminetetraacetate with potassium carbonate.

Calcium sulfate (CaSO) scale has been identified as one of the most common scales contributing to several serious operating problems in oil and gas wells and water injectors. Removing this scale is considered an economically feasible process in most cases as it enhances the productivity of wells and prevents potential severe equipment damage. In this study, a single-step method utilizing potassium carbonate and tetrapotassium ethylenediaminetetraacetate (K4-EDTA) at high temperature (200 °F) has been used to remove CaSO scale.

Optimum Selection of HS Scavenger in Light-Weight and Heavy-Weight Water-Based Drilling Fluids.

During hydrocarbon drilling operations, the presence of hydrogen sulfide (HS) gas could cause serious health and safety issues. Scavenging this gas and eliminating its impact are essential requirements for a safe drilling operation. This study investigated the impact of three HS scavenger additives (copper nitrate, iron gluconate, and potassium permanganate) on water-based drilling fluids (WBDFs).

Experimental Investigation of the Rheological Behavior of an Oil-Based Drilling Fluid with Rheology Modifier and Oil Wetter Additives.

Drilling issues such as shale hydration, high-temperature tolerance, torque and drag are often resolved by applying an appropriate drilling fluid formulation. Oil-based drilling fluid (OBDF) formulations are usually composed of emulsifiers, lime, brine, viscosifier, fluid loss controller and weighting agent. These additives sometimes outperform in extended exposure to high pressure high temperature (HPHT) conditions encountered in deep wells, resulting in weighting material segregation, high fluid loss, poor rheology and poor emulsion stability.

Effect of Margin Designs on the Marginal Adaptation of Zirconia Copings.

Objective: The aim of this study was to investigate the effect of Shoulder versus Chamfer margin design on the marginal adaptation of zirconia (Zr) copings.

Materials And Methods: 40 extracted molar teeth were mounted in resin and prepared for zirconia crowns with two margin preparation designs (20=Shoulder and 20=Chamfer). The copings were manufactured by Cercon® (DeguDent GmbH, Germany) using the CAD/CAM system for each tooth.

Quantification of glycyrrhizin in anti-stress herbal formulations by validate HPTLC method: a rational paradigm towards quality control of herbals.

In the present study an analytical method of high-performance thin-layer chromatography (HPTLC) has been developed for quantification of glycyrrhizin for marketed antistressliquorice root capsules (LRC) and herbal tea (HT). Chromatography was performed by using mobile phase ethyl acetate (EA): glacial acetic acid (GAA): Methanol (MeOH): water (H(2)O) in proportion of 6:2:2:1, v/v/v/v. The developed plate was scanned and quantified densitometrically at absorption maxima 254nm.

Preservation of the gingival architecture with the scalloped implant design: a clinical report.

Replacing the missing maxillary anterior teeth with dental implants and maintaining the soft tissue structure and alveolar profile is an esthetic challenge for the restorative dentist. This clinical report describes the immediate provisional placement and prosthetic rehabilitation of 2 missing maxillary central incisors with scalloped dental implants.