5,993 results match your criteria: "yemen; Sana'a University[Affiliation]"

Prevalence and Etiology of Maxillary Midline Diastema among University Students, Hodeidah Governorate, Yemen: A Cross-sectional Study.

J Contemp Dent Pract

October 2024

Department of Prosthetic Dental Science, College of Dentistry, Jazan University, Jazan, Saudi Arabia, Phone: +00966550599553, e-mail: Orcid: https://orcid.org/0000-0002-9623-261X.

Aim: This study assessed the prevalence and etiological factors of maxillary midline diastema (MMD) in students attending different colleges and universities in Al-Hodeidah governorate, Yemen.

Participants And Methods: A total of 1,661 participants from different universities in Al-Hodeidah governorate were assessed, analyzed, and screened for the presence or absence of MMD. Only 246 had positive MMD and were divided five age-groups.

View Article and Find Full Text PDF

Impact of Maxillomandibular Sagittal Variations on Upper Airway Dimensions: A Retrospective Cross-sectional CBCT Evaluation.

J Contemp Dent Pract

October 2024

Department of Oral and Maxillofacial Surgery, College of Dentistry, Ibn Al-Nafis University for Medical Sciences, Sana'a, Yemen, Phone: +86 18682960907, e-mail: Orcid: https://orcid.org/0000-0002-6906-8279.

Aim: This study aimed to analyze the upper airway dimensions in adult patients with different anteroposterior (sagittal) skeletal malocclusions (class I, II, and III) using cone beam computed tomography (CBCT) imaging.

Materials And Methods: This retrospective cross-sectional study involved 90 CBCT records from adult subjects who were categorized into three skeletal groups based on their ANB values: Class I ( = 30), class II ( = 30), and class III ( = 30) and were evaluated. The following upper airway measurements were considered: oropharyngeal airway volume, hypopharyngeal airway volume, pharyngeal airway volume, oropharyngeal airway length, hypopharyngeal airway length, pharyngeal airway length, the most constricted site of the pharyngeal airway, and the most constricted cross-sectional area (MIN-CSA) of the pharyngeal airway.

View Article and Find Full Text PDF

Background: Development of effective guideline for delirium management is still seeking nowadays. As nurses are in the first confrontation line for delirium, their prospective in identifying barriers are essential in developing integrated strategies and clinical guidelines.

Objective: To explore the barriers focusing on intensive care unit (ICU) nurses' point of views to provide an evidence-based support for effective nurse-led delirium management in ICU settings.

View Article and Find Full Text PDF

The main objective of this work is to study the mathematical model that combines stem cell therapy and chemotherapy for cancer cells. We study the model using the fractal fractional derivative with the Mittag-Leffler kernel. In the analytical part, we study the existence of the solution and its uniqueness, which was studied based on the fixed point theory.

View Article and Find Full Text PDF

This study first proposes an innovative method for optimizing the maximum power extraction from photovoltaic (PV) systems during dynamic and static environmental conditions (DSEC) by applying the horse herd optimization algorithm (HHOA). The HHOA is a bio-inspired technique that mimics the motion cycles of an entire herd of horses. Next, the linear active disturbance rejection control (LADRC) was applied to monitor the HHOA's reference voltage output.

View Article and Find Full Text PDF

With growing environmental concerns and the need for sustainable energy, multifunctional materials that can simultaneously address water treatment and clean energy production are in high demand. In this study, we developed a cost-effective method to synthesize zinc oxide (ZnO) nanowires via the anodic oxidation of zinc foil. By carefully controlling the anodization time, we optimized the Zn/ZnO-5 min electrode to achieve impressive dual-function performance in terms of effective photoelectrocatalysis for water splitting and waste water treatment.

View Article and Find Full Text PDF

Background: This study aimed to investigate the quality and readability of online English health information about dental sensitivity and how patients evaluate and utilize these web-based information.

Methods: The credibility and readability of health information was obtained from three search engines. We conducted searches in "incognito" mode to reduce the possibility of biases.

View Article and Find Full Text PDF

Objective: The use of vertical margin design in all-ceramic restoration has generated inquiries regarding its clinical efficacy under diverse dynamic oral conditions. This research aims to assess the marginal fit and fracture resistance of monolithic zirconia crowns featuring vertical margin design as opposed to those with conventional horizontal margin design.

Materials And Methods: Two metal dies were employed to generate replicated resin dies mimicking mandibular first molar preparation.

View Article and Find Full Text PDF

Raman and Photoluminescence Studies of Quasiparticles in van der Waals Materials.

Nanomaterials (Basel)

January 2025

Hunan Key Laboratory of Super-Microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China.

Two-dimensional (2D) layered materials have received much attention due to the unique properties stemming from their van der Waals (vdW) interactions, quantum confinement, and many-body interactions of quasi-particles, which drive their exotic optical and electronic properties, making them critical in many applications. Here, we review our past years' findings, focusing on many-body interactions in 2D layered materials, including phonon anharmonicity, electron-phonon coupling (), exciton dynamics, and phonon anisotropy based on temperature (polarization)-dependent Raman spectroscopy and Photoluminescence (PL). Our review sheds light on the role of quasi-particles in tuning the material properties, which could help optimize 2D materials for future applications in electronic and optoelectronic devices.

View Article and Find Full Text PDF

Combined anterior and posterior miniscrews increase apical root resorption of maxillary incisors in protrusion and premolar extraction cases.

Korean J Orthod

January 2025

State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.

Objective: Miniscrews are commonly utilized as temporary anchorage devices (TADs) in cases of maxillary protrusion and premolar extraction. This study aimed to investigate the effects and potential side effects of two conventional miniscrew configurations on the maxillary incisors.

Methods: Eighty-two adult patients with maxillary dentoalveolar protrusion who had undergone bilateral first premolar extraction were retrospectively divided into three groups: non-TAD, two posterior miniscrews only (P-TADs), and two anterior and two posterior miniscrews combined (AP-TADs).

View Article and Find Full Text PDF

Maillard-derived mung bean protein-peach gum conjugates: A novel emulsifier to improve stability, antioxidants, and physicochemical properties of chia seed oil nanoemulsion.

Food Res Int

February 2025

State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China. Electronic address:

This research is designed to enhance the physio-chemical properties, constancy, and antioxidant activities of water-in-oil (W/O) emulsions containing chia seed oil (CSO) by utilizing mung bean protein isolate (MBPI)-peach gum (PG) conjugates, which were created through the Maillard reaction (MR), as the emulsifying agents. The emulsions were prepared using MBPI-PG produced through the Maillard reaction (EMRP) at concentrations of 0.5 %, 1 %, and 1.

View Article and Find Full Text PDF

Background The critical view of safety (CVS) is a critical technique to minimize the risk of bile duct injuries (BDIs) during laparoscopic cholecystectomy (LC). This study evaluated the rate of CVS achievement and examined factors influencing its success. Methods This prospective study included 97 patients undergoing LC.

View Article and Find Full Text PDF

Background: Dynamic Coronary Roadmap (DCR) is a new PCI method that may reduce contrast dose and contrast-associated acute kidney injury (CA-AKI) risk. This paper evaluates DCR-guided PCI versus standard angiography PCI for contrast usage, procedure time, and CA-AKI risk.

Methods: On May 1, 2024, we searched PubMed, Scopus, Embase, Cochrane Library, and clinicaltrials.

View Article and Find Full Text PDF

Psychological wellbeing and treatment adherence among cardio-renal syndrome patients in Yemen: a cross section study.

Front Med (Lausanne)

January 2025

Department of Nursing Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Wadi Alddawasir, Saudi Arabia.

Background: Anxiety and depression are associated with adverse outcomes in cardiorenal syndrome patients undergoing hemodialysis, including decreased quality of life, poorer clinical parameters, and lower treatment adherence.

Objective: This study aimed to examine the level of psychological wellbeing and its relationship with treatment adherence among dialysis patients with cardiorenal syndrome.

Methods: This cross-sectional descriptive study was conducted between February and May 2021 on convenience sampling of 100 patients in two dialysis centers in Hadhramout, Yemen.

View Article and Find Full Text PDF

Quinolone antibiotics are known for their antibacterial activity by inhibiting the enzyme DNA gyrase. Inspired by their mechanism, new compounds combining 1,4-dihydropyrimidine, a quinolone isostere, with pyridine/pyrimidine rings were synthesized. These derivatives showed antibacterial effects, likely through DNA gyrase inhibition, as supported by molecular docking and dynamics simulations.

View Article and Find Full Text PDF

A retrospective analysis of the malaria trend in Yemen over the sixteen-years, from 2006 to 2021.

BMC Public Health

January 2025

Medical Microbiology Department, Faculty of Medical Sciences, Ibb University, Ibb, Yemen.

Background: Malaria is one of the important diseases that threatens the global health system, especially in developing countries, including Yemen. Based on surveillance data, this analysis aimed to assess the trend of malaria in Yemen over the last sixteen years from 2006 to 2021.

Methods: A retrospective analysis was conducted on secondary malaria data from the database from the Ministry of Public Health and Population in Yemen.

View Article and Find Full Text PDF

Assessing the Colorectal Cancer Landscape: A Comprehensive Exploration of Future Trends in 216 Countries and Territories from 2021 to 2040.

J Epidemiol Glob Health

January 2025

Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Shahid Arabi Ave., Yemen St., Velenjak, P.O. BOX: 1985717411, Tehran, Iran.

Background: Colorectal cancer (CRC) has become a significant global concern, presenting formidable challenges to healthcare systems and leading to substantial healthcare expenses. This study examines the projected prevalence and trends of CRC worldwide, encompassing 21 regions and 195 nations.

Methods: We employed an illness-death model (IDM) in order to forecast the anticipated prevalence of CRC by the year 2040.

View Article and Find Full Text PDF

Objective: This study aimed to evaluate the positional and morphological changes in the temporomandibular joint (TMJ) in adult patients with skeletal Class I malocclusion treated with fixed orthodontic appliances (FAs) and clear aligners (CAs), both with and without premolar extractions.

Methods: This retrospective study involved 120 adult patients divided into non-extraction and extraction groups, each further subdivided equally into those treated with FAs and CAs. Cone beam computed tomography (CBCT) was used to assess the TMJ measurements before (T0) and after treatment (T1).

View Article and Find Full Text PDF

Advancements and prospects of molecularly imprinted polymers as chemical sensors: A comprehensive review.

Talanta

January 2025

Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Selangor, Malaysia; Southeast Asia Disaster Prevention Research Initiative (SEADPRI-UKM), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Selangor, Malaysia.

The scientific literature on molecularly imprinted polymers (MIPs) has grown significantly in the past decades, reflecting an increasing interest in their potential applications. MIPs are valued for their ability to selectively detect a broad range of analytes and mimic biological recognition in different environmental conditions. This review utilises data (Scopus data from 2010 to 2024) from a bibliometric visualisation with VOSviewer (version 1.

View Article and Find Full Text PDF

Alopecia areata (AA) is an autoimmune condition marked by hair loss, linked to inflammatory processes involving the interleukin-1 receptor type 1 (IL-1R1) pathway. This study aims to explore the relationship between IL-1R1 gene expression, serum IL-1R1 levels, and hsa-miR-19b-3p in relation to AA severity. Using a case-control design, we assessed 100 AA patients and 100 healthy controls, measuring serum IL-1R1 through enzyme-linked immunosorbent assay (ELISA) and analyzing IL-1R1 gene and hsa-miR-19b-3p expression levels via quantitative real-time PCR (qRT-PCR).

View Article and Find Full Text PDF

Catheter-directed therapy for pulmonary embolism in pediatrics: a systematic review and meta-analysis.

Thromb J

January 2025

Pediatric Emergency Department, St. Christopher's Hopsoital for Children, Philadelphia, PA, USA.

Background: Acute pulmonary embolism (PE) is a serious and potentially fatal condition that is relatively rare in the pediatric population. In patients presenting with massive/submassive PE, catheter-directed Therapy (CDT) presents an emerging therapeutic modality by which PE can be managed.

Methods: Electronic databases were systematically searched through May 2024.

View Article and Find Full Text PDF

Background: Drug response prediction is critical in precision medicine to determine the most effective and safe treatments for individual patients. Traditional prediction methods relying on demographic and genetic data often fall short in accuracy and robustness. Recent graph-based models, while promising, frequently neglect the critical role of atomic interactions and fail to integrate drug fingerprints with SMILES for comprehensive molecular graph construction.

View Article and Find Full Text PDF

Microencapsulation using a novel wall material prepared via Maillard reaction-derived mung bean protein-peach gum conjugates to enhance stability and functionality of chia seed oil.

Int J Biol Macromol

January 2025

State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China. Electronic address:

This study investigated the potential of Maillard reaction products (MRPs) derived from mung bean protein isolate (MBPI) and peach gum (PG) conjugates as wall materials for microencapsulating chia seed oil (CSO). Four formulations (MMRP) were prepared using spray-drying and compared to a commercial sample (CMMRP). The MMRP formulation exhibited the highest encapsulation yield (91 %) and encapsulation efficiency (96 %), along with favorable physical properties, including a spherical shape and smooth surface.

View Article and Find Full Text PDF

Ethnomedicine exhibits potential in developing affordable effective antidiabetic agents. This work aimed to explore the antidiabetic properties of latex extract both in vivo, utilizing alloxan-induced diabetic rats, and in vitro, through -amylase enzyme testing. Additionally, it sought to formulate optimal effervescent granules derived from the extract.

View Article and Find Full Text PDF