Numerical Study of Soliton Solutions of KdV, Boussinesq, and Kaup-Kuperschmidt Equations Based on Jacobi Polynomials

In this paper, a numerical method is developed to approximate the soliton solutions of some nonlinear wave equations in terms of the Jacobi polynomials. Wave are very important phenomena in dispersion, dissipation, diffusion, reaction, and convection. Using the wave variable converts these nonlinear equations to the nonlinear ODE equations. Then, the operational Collocation method based on Jacobi polynomials as bases is applied to approximate the solution of ODE equation resulted. In addition, the intervals of the solution will be extended using an rational exponential approximation (REA). The KdV, Boussinesq, and Kaup–Kuperschmidt equations are studied as the test examples. Finally, numerical computation of the conservation values shows the effectiveness and stability of the proposed method

Evaluation of the relashionship between clinical findings before tympanoplasty and ossicular discontinuity and erosion in patients with chronic otitis media

Background: Chronic Otitis Media (COM) is a relatively common condition and the occurrence of hearing loss is probable. COM may lead to ossicular discontinuity, and unless the operation is performed, it won't be determined. Identifying possible cases of erosion and discontinuity of ossicles is helpful in surgical planning and in anticipation of the probable need for procuring ossicular prosthesis.Purpose: The aim of this study was to evaluate the relationship between preoperative clinical findings and intraoperative findings.Methods: This is a cross sectional study carried out in 2012 in two tertiary referral hospitals of Tehran, (the Loghman and the Taleghani hospitals). The sample under study consisted of COM patients who referred to the otolaryngology clinics and were tymponoplasty candidates. Two hundred and seven  patients with the mean age of 36.2±13.9 (ranging from 9-67 years) were enrolled in the study. Pre-surgical findings were investigated and the relationship between ossicular discontinuity and pre-surgical findings were evaluated.Results: Incus-Stapes discontinuity (IS Discontinuity) and Incus-Malleus discontinuity (IM Discontinuity) were seen in 60 (29%) and 25 (12.1%) patients, respectively. We found IS Discontinuity in 38 (24.1%) patients with central perforation and 22 (48.9%) cases of marginal perforations (P=0.005). IM Discontinuity was observed in 14 (8.9%) cases with central perforation, while this was seen in 11 (22.4%) cases with marginal perforations (P=0.011). On the other hand, 34 (42%) patients with otorrhea had IS Discontinuity whereas 26 (20.6%) cases of dry ears showed this type of ossicular problem (P<0.001). IM Discontinuity was detected in 13 (16%) and 12 (9.5%) cases with and without otorrhea, respectively (P=0.011). IS Discontinuity and IM Discontinuity were significantly more common in the patients with Air Bone Gap of more than 40 db.Conclusion: Our finding showed that surgical results may be unpleasant in the patients with marginal perforation, otorrhea and ABG>40 db

The Effects of Stress Management Training on Communication Skills and Attribution Beliefs on Women with Adjustment Disorders

Background: Recognizing the effective factors in marital relationships, control and manage them are among the crucial methods in solving marital problems and achieving marital satisfaction. The present study aimed to investigate the effects of stress management training on communication skills and attribution beliefs on women with adjustment disorders. Methods: The research method was quasi-experimental with a pre-test, post-test, and follow-up design and a control group. The statistical population included all women with adjustment disorders who were referred to the psychological clinics of district 1 of Tehran in 2020. Thirty women who were willing to participate in the study were selected as the sample using convenience sampling and randomly divided into experimental and control groups (n=15 per group). The experimental group underwent eight sessions (90 minutes sessions per week) of stress management training. The follow-up was performed after 60 days. The research instruments included the Dyadic Adjustment Scale (DAS), the Relationship Attribution Measure (RAM), and the Jarabak Communication Skills Questionnaire (JCSQ). Data analysis was conducted using repeated-measures ANOVA. Results: The results indicated that stress management training improved communication skills and attribution beliefs in women with adjustment disorders (Pvalue=0.0001). Conclusions: Stress management training can be recommended as an intervention program to improve the quality of life of women with adjustment disorders. Keywords: Stress management, Communication, Attribution, Beliefs, Adjustment, Wome

The Effects of Stress Management Training on Communication Skills and Attribution Beliefs on Women with Adjustment Disorders

Background: Recognizing the effective factors in marital relationships, control and manage them are among the crucial methods in solving marital problems and achieving marital satisfaction. The present study aimed to investigate the effects of stress management training on communication skills and attribution beliefs on women with adjustment disorders. Methods: The research method was quasi-experimental with a pre-test, post-test, and follow-up design and a control group. The statistical population included all women with adjustment disorders who were referred to the psychological clinics of district 1 of Tehran in 2020. Thirty women who were willing to participate in the study were selected as the sample using convenience sampling and randomly divided into experimental and control groups (n=15 per group). The experimental group underwent eight sessions (90 minutes sessions per week) of stress management training. The follow-up was performed after 60 days. The research instruments included the Dyadic Adjustment Scale (DAS), the Relationship Attribution Measure (RAM), and the Jarabak Communication Skills Questionnaire (JCSQ). Data analysis was conducted using repeated-measures ANOVA. Results: The results indicated that stress management training improved communication skills and attribution beliefs in women with adjustment disorders (Pvalue=0.0001). Conclusions: Stress management training can be recommended as an intervention program to improve the quality of life of women with adjustment disorders. Keywords: Stress management, Communication, Attribution, Beliefs, Adjustment, Wome

The interaction between a HSP-70 gene variant with dietary calories in determining serum markers of inflammation and cardiovascular risk

Background: The high prevalence of cardiovascular disease (CVD) globally is attributable to an interaction between environmental and genetic factors. Gene × diet interaction studies aim to explore how a modifiable factor interacts with genetic predispositions. Here we have explored the interaction of a heat shock protein (HSP70) gene polymorphism (+1267A>G) with dietary intake and their possible association with serum C-reactive protein (CRP), an inflammatory marker, that is a major component of CVD risk. Methods: HSP70 genotype was determined using a TaqMan real time PCR based method. Genetic variation of the HSP70 gene +1267A>G locus. Dietary intake was assessed using a dietary questionnaire. Serum high sensitivity (Hs) CRP and other cardiovascular risk factors were assessed by routine methods. This included coronary angioplasty to determine the presence of coronary artery stenosis. Results: There were significant differences between serum lipid profile and Hs-CRP across the genotypes for Hsp70. The carriers of G allele had higher serum hs-CRP concentrations, compared with the AA homozygotes, with the wild genotype. Interaction analysis showed the association was modulated by total energy intake; the interaction of high energy intake with GG genotype: RERI= 0.77, AP= 0.26, S=1.6. Conclusion: We have found a significant association between the +1267A>G variant of the HSP70 gene with cardiovascular risk factors and serum hs-CRP concentrations. It is possible that a low energy diet could ameliorate the unfavorable effects of G allele of HSP70

Effect of salicylic acid on antioxidant properties of In vitro proliferated shoots of Melissa officinalisL.

Melissa officinalis is a medicinal plant belong to  lamiacea family.  This plant has been cultivated in many parts of the world due to its therapeutic effects. This study was conducted to improve antioxidant activities of proliferated shoots from tissue culture. The seeds of plant   were cultured in MS hormone free medium in order to obtain   seedlings. Then the  shoots were transfer to MS medium supplemented with 2 mg/ L  BAP.After 45 days salicylic acid (SA) was added to the medium at concentrations of 0, 50, 100 and 200 µM. The antioxidant activity and phenolics, flavonoids and rosmarinic acid content in proliferated shoots were evaluated 4,7,10 and 14 days after treatment. As a result the highest free radical scavenging and reducing power activity, as well as the highest value of total phenolic   and rosmarinic acid were observed in shoots   after 14 days of treatment with 100 µM salicylic acid. The elevated level of superoxide anion scavenging activity      and total flavonoids        were obtained from the shoots treated with 50 µM salicylic acid for 14 days. Over all treatment with100 µM salicylic acid for 14 days was better in order to antioxidant activity and compounds with recognized antioxidant activity

Do Personality Traits Matter in Auditors’ Compliance with Professional Ethics?

The purpose of this research is to investigate the factors that influence auditors' compliance with professional ethics. This study is a quantitative and post-event and descriptive-correlational research. The statistical population of this research is all certified accountants working in the audit institutions of Tehran, and based on Cochran's sampling formula, 336 auditors were selected as a sample. However, 243 completed questionnaires were received by the researcher. Cronbach's alpha was used to test the reliability of the questionnaire, and the value was 0.787. In this research, structural equation modelling and PLS software were used to test the research hypotheses. The results indicate that there is no significant relationship between the trait of neuroticism and auditors’ compliance with professional ethics. However, there is a significant relationship between the trait of extraversion and auditors’ compliance with professional ethics. Additionally, the results showed that there are significant relationships between the trait of openness to experience, the trait of agreeableness and the trait of conscientiousness with auditors’ compliance with professional ethics. Based on this result, it can be mentioned that auditors who feel a greater sense of responsibility, utilize appropriate techniques and methods for their job, and have the necessary readiness to review social, political, and religious values and possess a broad mind and enjoy challenges and puzzles. In addition, auditors who are cooperative, empathetic, and eager to help others demonstrate better et hical behaviour compared to self-centred auditors who are suspicious of others and engage in more competition than cooperation

NOVEL FREE LABEL BOTULINUM APTASENSOR BASED ON CAPACITANCE METHOD

A feasible and fast method to fabricate Botulinum neurotoxin serotype A (BoNT/A) biosensor was investigated by graphene-carbon paste nanocomposite electrode. In the present work, the graphene was synthesis by chemical method and characterized by SEM. The nanocomposite shows a high conductive and sensitivity for BoNT/A determination as shown by cyclic voltammetry and electrochemical impedance spectroscopy. Graphene-Carbone paste electrode was used for immobilization of aptamer in 0.1 M phosphate buffer solution at pH = 7. Aptamer was trapped in graphene modified carbon paste (Cp) electrodes. The electrodes were applied as indicator electrodes for capacitance determination of BoNT/A. Through this method, BoNT/A was detected in a concentration range from 0.16 to 0.68 ng·mL-1 with a correlation coefficient of 0.964 and detection limit of 0.09 ng·mL-1. Also, the life time of sensor is in finite

An overview of the comparison of inhalation aromatherapy on emotional distress of female and male patients in preoperative period

Many patients experience anxiety and stress before surgery. Anxiety is also different in men and women so that the prevalence of anxiety disorders in women is higher than men. The present study aimed to compare the effect of inhalation aromatherapy on emotional distress of men and women before surgery. This study conducted as a randomized, single blind, placebo-controlled, prospective and clinical trial. It was performed in hospitals affiliated to Shiraz University of Medical Sciences. 90 patients were selected as candidates for surgery and were divided into two intervention groups and one control group. Patients completed the State-Trait Anxiety Inventory questionnaire before the intervention. Patients completed the State-Trait Anxiety Inventory questionnaire (STAI) after 20 min of intervention. Then the data were analyzed using SPSS software, version 16. The significance level in all testes was set at <0.05. Relatively severe anxiety was not observed in men after intervention with lavender and spring orange. In women, relatively severe anxiety was not observed after the intervention with lavender, but in the spring orange group, only in 6.7% of people, relatively severe anxiety and traits were observed, which has decreased compared to before the intervention. In addition, the severity of anxiety in women in the control group increased after placebo intervention (p<0.05). The results showed that inhalation of Citrus aurantium and lavender aroma reduces anxiety in male and female patients