Cleaning Efficiency of Root Canal after Irrigation with New Irrigation Technique: A Scanning Electron Microscopic Study

Introduction: The aim of this study was to evaluate the ability of pressurized water irrigation technique (AquaPick Device) as an intra-canal irrigation technique and compare it with sonic irrigation device (Endoactivator) for their ability to remove smear layer from canals. Methods and Materials: Total number of 80 single rooted teeth (premolars) were prepared, divided into eight main groups, Group 1: Aquapick with apically vented needle/18 mm depth, Group 2: Aquapick with apically vented needle/15 mm depth, Group 3: Endoactivator device/18 mm depth, Group 4: Endoactivator device/15 mm depth, Group5: Aquapick with 2 side vented needle/18 mm depth, Group 6: Aquapick with 2 side vented needle/15 mm depth and two control groups. Then all samples were tested by SEM in 3, 6 and 9-mm distances from the apical foramen. The data were statistically analyzed using Kruskal Wallis and Mann-Whitney U tests. Results: There was a high significant difference among the tested groups with the best removal of smear layer by the use of pressurized water irrigation device with apical vented needle especially at the 3 mm area. Conclusion: Pressurized water irrigation technique could be used as intra-canal irrigation technique with good results.Keywords: AquaPick Device; Endoactivator; Smear Layer Removal; Pressurized Wate

The Role of Art Education Teachers' in Developing Emotional Awareness of Students

The study aimed to know the role of technical education teachers in developing the emotional awareness of students in Jordanian government schools for the academic year (2019/2020), and the study used the descriptive analytical approach, and the sample consisted of (450) and retrieved (430) students, the results reached The presence of individual differences in the levels of emotional awareness in favor of the female category with an average arithmetic (3.74) higher compared to males with an average arithmetic (3.57), and the study recommended taking into account the need to take care of programs and course of art education through effective educational plans because of its impact on stimulating and raising the degree of awareness of educated people ,  trained both teacher and students to develop their artistic  and technical skills by using technology in their studies and majors  to keep pace with modernity and the most prominent techniques in the field of arts, and to pay attention to the issue of stimulating productivity of students and teachers together by setting a list of  productive quality criteria  that contribute to the preparation and production of artists of different branches of their technical majors. Keywords: Art Education Teachers, Emotional Awareness. DOI: 10.7176/JEP/11-5-13 Publication date: February 29th 202

Evaluation of Canal Transportation after Using Different Types Rotary Glide Path Files

Introduction: Canal transportation is a common problem caused by rotary instruments. The purpose of the present study was to evaluate root canal transportation after using WaveOne Gold Glider, ProGlider, Path File and K-file. Methods and materials: Forty resin blocks with L-shaped canals were divided into four groups (n=10). Group 1; canals were prepared with WaveOne Gold Glider, group 2; ProGlider, group 3; Path Files and group 4; #10, #15, and #20 stainless steel manual K-Files. Pre- and post-instrumentation photographic images were superimposed and resin removed from the inner and outer surfaces of the root canal was calculated through 3 points at 3, 6 and 9 mm from the end of canal which represented canal transportation. All data were analyzed by one way ANOVA test. The level of significance was set at 0.05. Results: Statistical analysis by one-way ANOVA test revealed that there was no significant differences (P>0.05) between the tested files in canal transportation in apical, middle and coronal third. The last amount of canal transportation happened at the apical third in WaveOne Gold Glider group. Conclusions: This in vitro study showed that using WaveOne Gold Glider files lead to less canal transportation especially in the apical third area with less significant differences with ProGlider, PathFiles and K-File.Keywords: Canal Transportation; Glide Path File; Resin Block; WaveOne Gold Glide

Foreign Employment and its Impact on Human Resource Management for Supply Chains

Abstract - The aim of the research is to determine the impact of foreign employment on Human Resource Management for Supply Chains of labor market in Iraq, the areas in which it operates, the reasons for its recruitment, the ways in which national employment can replace foreign employment and the reduction of unemployment in the size of the labor force. The research aims at finding out the impact of foreign labor on the labor market in Iraq, the fields in which these workers work, the reasons that led to their importation, and the ways that lead to the possibility of replacing the foreign workers with the national labor force. The research found that most foreign workers are of unskilled labor with less pay and longer working hours, and this justifies their recruitment, which means that local workers with skilled skills are more affected by the increasing numbers of foreign workers. Therefore, it is necessary to protect national workers against foreign labor competition. In the labor market through the establishment of strict laws protect the local factor and restrict the work of foreign workers and contribute to the stability of wage rate

Investigation into the prophylactic and therapeutic activity of coenzyme Q10 against COVID-19

Purpose: To evaluate the anti-SARS CoV-2 effect of Coenzyme Q 10, Ubiquinol-10, and idebenone, which have beneficial therapeutic applications against diverse virus types, using molecular docking approach.Methods: The potential activity of Coenzyme Q10, Ubiquinol-10, and Idebenone against viral infections was explored through the collection of data from relevant literature, and by modelling these compounds virtually, using in silico investigation methods.Results: Coenzyme Q10 and ubiquinol-10 showed significant docking performance. They interacted with numerous amino acid residues of the main protease of SARS-CoV-2 ACE2 (7C8J), Alpha thrombin (1AE8), TYRO (4TS1) protein targets sides, SARS-coronavirus Orf7a accessory protein (1XAK), TNF (1RJ8), and Cytokine/receptor (1I1R).Conclusion: The findings of our study showed promising inhibitory activities of the selected compounds against the main proteases of SARS-CoV-2. Consequently, these compounds have theoretical effects on inhibiting the viral entry, reproduction, and ultimately the prevention and/or treatment of the SARSCoV2 infection

Distribution of nerve fibers and nerve-immune cell association in mouse spleen revealed by immunofluorescent staining

The central nervous system regulates the immune system through the secretion of hormones from the pituitary gland and other endocrine organs, while the peripheral nervous system (PNS) communicates with the immune system through local nerve-immune cell interactions, including sympathetic/parasympathetic (efferent) and sensory (afferent) innervation to lymphoid tissue/organs. However, the precise mechanisms of this bi-directional crosstalk of the PNS and immune system remain mysterious. To study this kind of bi-directional crosstalk, we performed immunofluorescent staining of neurofilament and confocal microscopy to reveal the distribution of nerve fibers and nerve-immune cell associations inside mouse spleen. Our study demonstrates (i) extensive nerve fibers in all splenic compartments including the splenic nodules, periarteriolar lymphoid sheath, marginal zones, trabeculae, and red pulp; (ii) close associations of nerve fibers with blood vessels (including central arteries, marginal sinuses, penicillar arterioles, and splenic sinuses); (iii) close associations of nerve fibers with various subsets of dendritic cells, macrophages (Mac1+ and F4/80+), and lymphocytes (B cells, T helper cells, and cytotoxic T cells). Our data concerning the extensive splenic innervation and nerve-immune cell communication will enrich our knowledge of the mechanisms through which the PNS affects the cellular- and humoral-mediated immune responses in healthy and infectious/non-infectious states

The Effect Of Controlling Hyperglycemia On The Morbidity And Mortality Of Intensive Care Unit (ICU) Patients

Introduction: Hyperglycemia and insulin resistance are common in critically ill patients, even if they have not previously had diabetes, and the risk of mortality or significant morbidity is high among those who are treated in the intensive care unit (ICU) for more than 5 days. Objective: To assess the effect of glucose management protocol on mortality and morbidity in a heterogeneous population of critically ill adult patients. Design: A randomized controlled trial. Setting: A 24-bed medical-surgical intensive care unit (ICU) for adult patients at King Hussein Medical Center, the Royal Medical Services. Methods: A total of 50 patients who were considered to need intensive care for at least three days, were randomly assigned into two groups. The intervention group subjects were to undergo a glucose control protocol with insulin infusion titrated to maintain blood glucose level in a target range of 120-160 mg/dL; except septic patients, in whom the target was higher, 160- 180 mg/dL. Patients in the second group (control group) were treated by a conventional approach with reduction of blood glucose level only if the level was markedly elevated (>200 mg/dL) to maintain blood glucose level in a target range of 180-200 mg/dL. Results: After adjustment for baseline characteristics the 2 groups of patients were well matched, for age, sex, prevalence of diabetes mellitus, HbA1c value and distribution of diagnoses; the only significant difference was in the percentage of cardiovascular dysfunction, which was higher in the intervention group (p=0.047). After institution of the protocol, the mean blood glucose levels differed significantly between the two treatment groups during the study period (143.70±12.78 mg/dL in the intervention group versus 175.56±14.07 mg/dL in the control group (p<0.001). And patients in the intervention group received a larger mean insulin dose 28.32 ±16.38 units per day, vs. 14.60±12.26 in the control group (p=0.001). The difference in mortality between the two treatment groups was not significant at 28 days (p=0.370) and at 60 days (p=0.555). No significant increase in hypoglycemia episodes was reported in our blood glucose level target. Conclusion: The glucose management protocol resulted in significantly improved glycemic control and was not associated with increased rate of death or hypoglycemia