Responses to group-work among accounting students

The current study aims to assess group-work effectiveness among accounting students’ attitudes. To achieve this aim, 72 students of accounting were chosen as the target population of the research applying simple random sampling. First, groups were chosen of three or five members. Then, during six weeks, the group projects were organized in 14 sessions and they were observed by lecturers with a problem-solving viewpoint. This educational viewpoint was considered as a 50 percent grade of computer application classes among accounting students. Cognitive perception of group-work was used by applying Garvin et al.’s questionnaire. By and large, the analysis of students’ responses indicates that group-work is positively effective in promoting students’ individual and social skills. The results of this study indicate positive outcomes from teaching group-work skills in accounting curriculum

Responses to group-work among accounting students

The current study aims to assess group-work effectiveness among accounting students’ attitudes. To achieve this aim, 72 students of accounting were chosen as the target population of the research applying simple random sampling. First, groups were chosen of three or five members. Then, during six weeks, the group projects were organized in 14 sessions and they were observed by lecturers with a problem-solving viewpoint. This educational viewpoint was considered as a 50 percent grade of computer application classes among accounting students. Cognitive perception of group-work was used by applying Garvin et al.’s questionnaire. By and large, the analysis of students’ responses indicates that group-work is positively effective in promoting students’ individual and social skills. The results of this study indicate positive outcomes from teaching group-work skills in accounting curriculum

Identification of Appropriate Probe Site in Maxillary Anterior Teeth for Electric Pulp Testing

Objectives This study aimed to find the appropriate probe site for electric pulp testing (EPT) in maxillary anterior teeth. Methods Forty patients with available panoramic radiographs referred to the Endodontics Department were studied. In each patient, three intact teeth, including central incisor, lateral incisor, and canine, were selected from one quadrant of the maxillary arch. The incisal third, middle third, and cervical third of the buccal surface of the teeth were assessed. The respective teeth were isolated with rubber dam without a clamp. EPT was conducted starting with the lowest intensity, which gradually increased until the patient reported a sense of tingling, stinging, or heat. This process was repeated for all respective teeth at the three areas. Data were analyzed by the Friedman test (P<0.05), ANOVA (P<0.001), and Man-Whitney test (P>0.05). Results The middle third of all three maxillary anterior teeth was an appropriate site for EPT. The lateral incisor had the lowest threshold response in all three areas compared with other teeth. No significant difference was observed between male and female patients (P>0.05). Conclusion Within the limitations of this study, it may be concluded that the middle third of the buccal surface of maxillary anterior teeth is an optimal electrode placement site

Measuring the impact of service quality on post-purchase intention

This paper presents an empirical investigation to study the effects of service quality on post-purchase intention. The study is applied among some small and medium enterprises (SMEs) in city of Kerman, Iran. There were approximately 300 people working for these units and the study chose 168 people as a sample study. The study used a standard questionnaire consists of 20 questions in Likert scale and distributed it among the sample size. Using structural equation modeling the study has determined that service quality as well as perceived quality influenced positively on customer satisfaction and post-purchase intention

Colorimetric study of absorption behavior of madder natural dye on nylon using scanner

A scanner has been used as a low-cost instrument for measuring the colorimetric parameters of dyed nylon. The nylonfabric is dyed with madder natural dye using non-mordanting, pre-mordanting, and meta-mordanting. Then, the dyedsamples are scanned by a scanner and the RGB values of obtained image are converted to CIELab and HSL color spaces. Itis found that the scanner is able to evaluate the colorimetric characteristics of dyed samples. The obtained results are foundcomparable to the spectrophotometer results

The Study of James Rosenau's Affiliation Theory with an Emphasis on the Role of Individual and International System Variables in the Analysis of Regionalism in the Second Pahlavi and Islamic Republic of Iran

Different theoretical approaches can be used to analyze countries' foreign policy and regionalism. The present study intends to study and compare the policy of regionalism of Iran in the second Pahlavi era and the Islamic Republic based on the theoretical approach of James Rosenau, using the variables of decision-making personality, role, government, society and international system variables. Iran's regionalization policy during the Second Pahlavi period was in line with the structure of power in the international system. At the same time, Iran, in this period influenced by the structure of the bipolar system and the Cold War, also sought to gain supremacy and leadership in the region, as the most important person in foreign policy decision-making and in the personality of Mohammad Reza Shah. On this basis, we can say that the two variables of the international system and the decision-making personality were the most important variables influencing the process of foreign policy and regionalism of Iran during this period. In the Islamic Republic, with the formation of ideological elements such as the construction and nature of political power based on the velayat-e faqih and the idea of issuing a revolution, the policy of regionalism was in conflict with the structure of power in the international system and in line with ideological foundations and interests. Accordingly, the two variables of the international system and the decision-making personality were the most important variables influencing the process of foreign policy and regionalization of Iran during this period. The purpose of this paper is to use a descriptive-analytical method, a comparative study and to use the historical data to study the effect of each of these variables on the regionalization process

Study of Soil Pollution with Heavy Metals due to Leakage of Petroleum Hydrocarbons at Kermanshah Refinery

In recent decades, soil pollution with petroleum hydrocarbons in oil-rich countries (such as Iran) has been one of the most challenging issues. In these countries with petroleum industries, mines of oil exploration, refineries, etc., leakage from tanks or pipelines of oil transmission due to corrosion and damage bring about oil pollution for the soil. This study aimed at evaluating and measuring the amount of heavy metals in the soil of Kermanshah Refinery and statistical analysis in order to locate high-risk areas in terms of pollution caused by oil leaks, extraction, refining, and transportation. Therefore; 15 samples of surrounded soil of Kermanshah Refinery were analyzed to determine soil pollution with petroleum compounds. According to results of ICP-MS analysis of soil samples, the process of heavy metal changes in the soil of Kermanshah Refinery was Cr>Zn>Ni>V>Cu>Pb>Co>Sc>As>Cd. Geo accumulation index indicated that the intensity of the refinery soil is classified in the range of no pollution to average with reference to chromium and nickel. Besides, the finding from enrichment factor indicated the average enrichment of the region soil by chromium and lead. Moreover, it confirmed that enrichment in lead and copper has anthropogenic origin. Pollution load index of chromium, nickel, zinc, copper, and lead showed soil pollution to these metals. Zoning map of heavy metal density in the region soil demonstrates that high density of the elements in some stations is related to the petroleum leakage from installations and storage tank

Venous function after pharmacomechanical thrombolysis for extensive iliofemoral deep vein thrombosis

Background: Chronic venous insufficiency is an important complication following iliofemoral deep venous thrombosis. Early thrombus removal may preserve venous function and prevent this complication. This study represents the largest reported South African series of pharmacomechanical thrombolysis for iliofemoral deep venous thrombosis to date. Objective: To evaluate the long-term outcome following pharmacomechanical thrombolysis for proximal and extensive deep venous thrombosis in a private, specialist vascular unit. Methods: All patients who underwent pharmacomechanical thrombolysis for iliofemoral deep venous thrombosis between August 2009 and January 2016 were invited to return for clinical assessment and venous ultrasound. Clinical findings were recorded according to the Villalta score and clinical, etiology, anatomic and pathology (CEAP) classification. The quality of life (QoL) was assessed utilising the VEINES-QoL/Sym questionnaire, providing two scores per patient, one describing the QoL and the other symptom severity (Sym). Results: Thirty two patients (35 legs) were evaluated. There were 25 females and 7 males, with a mean age of 33.5 years (±14 years). The mean follow-up period was 31 months (range 3 months – 80 months). Results of the CEAP classification were C0 = 24 (75%), C1 = 1 (4%), C2 = 2 (6%), C3 = 2 (6%) and C4 = 3 (9%). Thirty-one (97%) patients had Villalta scores from 0 to 4, indicating no or mild evidence of venous disease. One patient (3%) had a Villalta score of 6, indicating post-thrombotic syndrome. The mean QoL score was 87% (±12) and the mean Sym score was 86% (±14). Twenty-four (75%) patients had no abnormality on ultrasound, with fibrosis the most observed abnormality. Conclusion: Most patients who had undergone pharmacomechanical thrombolysis for extensive iliofemoral deep venous thrombosis showed few significant clinical signs of chronic venous insufficiency, had excellent function on venous ultrasound and reported excellent QoL

Optimization of culture media for extracellular expression of streptokinase in Escherichia coli using response surface methodology in combination with Plackett-Burman Design

Purpose: To investigate the enhancement of streptokinase extracellular expression in Escherichia coli by adjusting culture media.Methods: Screening of 10 chemical factors (EDTA, peptone, glycine, triton X-100, glycerol, K2HPO4, KH2PO4, Ca2+ (calcium chloride), yeast and NaCl) in order to increase the secretion of extracellular protein was carried out by response surface methodology (RSM). The method was also employed to optimize the concentrations of critical factors that had been determined in the screening step.Results: The results indicate that glycine, triton X-100 and Ca2+ were the most effective chemical factors in terms of increase in extracellular expression of streptokinase with optimum levels of 0.878, 0.479 and 0.222 %, respectively. Expression of streptokinase under optimum concentrations of critical permeabilizing factors led to a 7-fold increase in the quantity of secreted recombinant protein (5824 U/mL) compared to the initial level (802 U/mL).Conclusion: The results show that medium optimization using RSM is effective in improving extracellular streptokinase expression. The optimization medium is considered fundamental and useful for efficient production of streptokinase on a large scale.Keywords: Streptokinase, Response surface methodology, Membrane permeabilization, Extracellular secretio