Comparing the Effectiveness of Buccal Infiltration of Different Volumes of Articaine for Extraction of Mandibular Posterior Teeth- a Randomized Clinical Trial.

This study compares the effectiveness of two different volumes of buccal infiltration of Articaine for the extraction of mandibular posterior teeth. One group receives buccal infiltration of 1.8 ml of 4% Articaine and the other group receives buccal infiltration of 3.6 ml of 4% Articaine.

开始日期2024-11-03

申办/合作机构

Qassim University

NCT06358833 / RecruitingN/AIIT

Comparison of Postoperative Pain When Using an Endodontic Needle and Endo1 Ultrasonic Endo Activate Device During Root Canal Irrigation: A Randomized Controlled Pragmatic Clinical Trial

Summary:
After a root canal procedure, it is common to experience postoperative pain. Cleaning the root canal thoroughly is crucial for pain relief, but removing all debris with standard methods is difficult. Irrigation, using either traditional endodontic needles or newer methods like endodontic activation, helps clean the canal. This study aims to compare pain levels after using conventional needles versus an Endo1 Ultrasonic Endo Activate Device for irrigation. Patients will undergo standard root canal preparation and then be randomly assigned to one of two groups for final irrigation: the Endo1 device (EA) and the conventional endodontic needles (EN). The study will provide insights into which method is more effective in reducing postoperative pain.

开始日期2024-04-15

申办/合作机构

Qassim University

NCT06556381 / RecruitingN/AIIT

The Efficacy of Ultrasound-guided Transversus Abdominis Plane ( TAP) Block Versus Standard Analgesic Protocol for Postoperative Analgesia After Elective, Cesarean- Section Delivery- A Randomize Controlled Trial

Relief from pain is part of the fundamental human right to health. (1) However, available evidence indicates an increasingly detailed understanding of the pathophysiology of pain and general inadequacy of its treatment.

开始日期2024-04-01

申办/合作机构

Qassim University

100 项与 Qassim University 相关的临床结果

登录后查看更多信息

0 项与 Qassim University 相关的专利（医药）

登录后查看更多信息

11,145

项与 Qassim University 相关的文献（医药）

2025-03-01·Journal of Electronic Packaging

High Gain Compact Antenna-in-Package Solution Using Like Mushroom Electromagnetic Band Gap for Industrial, Scientific, and Medical Band

作者: Almohaimeed, Ziyad M. ; Almohaimeed, Abdullah ; Hajlaoui, El Amjed ; Abdulkawi, Wazie

AbstractA single-feed circularly polarized antenna with electromagnetic band gap (EBG) has been developed for the Industrial, Scientific, and Medical (ISM) bands. The proposed antenna features a square patch with eight slits on each side and corner, along with a cross-slot in the middle. To prevent surface wave excitation caused by the patch antenna's thick substrate, new grounded like-mushroom EBG structures will surround the antenna. The frequency band gap characteristics of the EBG unit cells have been optimized at 5.8 GHz. A row of EBGs squares is 4.73 mm (0.063λo) away from the antenna square patch and surrounds it on all four sides. The proposed mushroom-like structure design improves the antenna's directivity by 43.31%, gain by 32.93%, reflection coefficient by 93%, and radiation efficiency by 35.22%. This topology enables a wide variety of wireless communications applications. Computer simulation technologies (CSTs) were used to generate simulation figures for the proposed antenna, operating at 5.8 GHz. Furthermore, the new Like-Mushroom EBG antenna simulation, experimental results, and other reported works confirm that our approach meets the studied objectives regarding polarization purity, radiation efficiency, high directivity, and gain.

2025-03-01·Current Materials Science

Electronic and Optical Properties of Na, Mg, and Al Substituted Zinc-oxide Nanotube: An Insight DFT Study

作者: Shakir, Mohd. ; Imran, Mohd ; Howari, Haidar ; Khan, Md. Shahzad ; Khan, Ziaul Raza

Background:The present work deals with DFT-based theoretical investigations on pristine and metal (M = Na, Mg, and Al) substituted zinc oxide nanotube (M-ZnONT). The investigation advocates a change in the electronic bandgap of ZnONT on the respective substitution of Zn with Na, Mg, and Al. The forbidden energy gap vanishes on Na incorporation, while Al substitution brings the gap to 0.08eV. The formation energy calculations suggest the feasibility of these metallic substitutions, of which Na incorporation is most favorable. Partial density of state (PDOS) analysis is well correlated with band structures. A localized state above the Fermi level contributed from Al-3p in Al-ZnONT suggests the electronic affinity of Al-ZnONT for incoming nucleophiles. Our optical investigation shows large ε1(ω) values in far-infrared (IR) and visible (Vis) regions for M-ZnONT. Hence, suggests a high refractive index for the metal-substituted ZnONTs in the prescribed range. The study suggests that photonic energy loss due to attenuation, bending, and absorption are weak in ultra-violet (UV) and far UV regions i.e, (3eV to 8eV). However, for the respective energy range, high reflectivity is predicted. This indicates the nanotubes as a good reflector for the purpose of coating material surfaces where high reflection is demanded.Objective:Finding electronic and optical properties of functionalized ZnONT using DFT method.Methods:All calculations have been performed in the framework of density functional theory (DFT) using Troullier Martins’s norm-conserving pseudo-potential.Results:Metal incorporation at the surface of ZnONT consequent intense ε1(ω) values in far infra- red and visible regions for M-ZnONT.Conclusion:The investigation suggests that the metal-substituted nanotube is a good reflector for coating material surfaces where high reflection is demanded.

2025-01-01·Journal of Biobased Materials and Bioenergy

Potential of Azo Dye Degrading Enzymes for Bioremediation in the Textile Industry: A Comparative Genomic Analysis for Safe Environment

作者: Alnusairi, Ghalia S. H. ; Alsudays, Ibtisam Mohammed ; Almohaimeed, Hailah M. ; Alghanem, Suliman M. S. ; Habeeb, Talaat H. ; Soliman, Mona H. ; Al-Sarraj, Faisal ; Al-Zahrani, Majid ; AL-Surhanee, Ameena A. ; Alaklabi, Abdullah

The textile industry plays a major part in the economy of the Kingdom of Saudi Arabia (KSA). However, the environmental impact of textile dyeing and wastewater discharge has become a growing concern in the region. This study addressed this issue by identifying and characterizing azo dye degrading enzymes that can be used in bioremediation strategies. Six enzymes, namely Thiol reductase, Thiol peroxidase, Alkene reductase, NADH-oxidoreductase, Oxidoreductase, and Sulfite reductase, were identified through a literature review and used as queries in BLASTp to search for homologous enzymes from Bacillus cereus, Brevibacillus brevis, Bacillus acidicola, and Paenibacillus alvei. The physicochemical characteristics and subcellular distribution of these enzymes were determined using online tools. Phylogenetic analysis was performed to investigate the evolutionary connection of these enzymes across different bacterial species. Additionally, gene structure and motif analysis were conducted to gain insights into functional motifs and gene organization of these enzymes. Domain prediction and protein–protein interaction analysis were carried out to identify conserved domains and potential protein interactions. The outcomes of this study offer valuable understandings on prospect of azo dye degrading enzymes for bioremediation strategies in the KSA textile industry, which is in agreement with the future Vision 2030 strategy. The identified enzymes and their homologs from other microbial genomes represent promising candidates for further experimental validation and utilization in bioremediation processes. Moreover, they contribute to the development of effective bioremediation strategies for the textile industry in the KSA region. Overall, this study enhances our understanding on azo dye degrading enzymes and their potential uses in the textile industry, particularly in the context of KSA.

100 项与 Qassim University 相关的药物交易

登录后查看更多信息

100 项与 Qassim University 相关的转化医学

登录后查看更多信息