The Effect of Hand Reflexology Massage on Pain and Fatigue in Patients after Coronary Angiography: A Randomized Controlled Clinical Trial

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Stall Flutter Control of a Wing Section by Leading Edge Modifications

A solution procedure is described for determining the two-dimensional and two-degrees of freedom flutter characteristics for wings at large angles of attack. This procedure requires a simultaneous integration in time of the solid and fluid equations of motion. The fluid relations of motion are the unsteady, compressible Navier-Stokes equations, solved implicitly by second-order Roe approximation scheme in a moving coordinate system. The solid equations of motion were integrated in time by use of fourth-order Runge-kutta method. In this paper, the stall flutter of a rectangular wing with section of NACA 0012 is studied. Therefore, the aeroelastic responses of system were calculated by applying mode shapes for vibrating wing. Then the obtained responses resulted from several changes in L.E. shape of wing are compared. The results showed that these different L.E. shapes cause the changes on oscillating parameters of system. In these changes, applying a camber with 25 deg angle had best result in this study

A comparative study of stored arterial versus venous blood collected using the acute normovolemic hemodilution method in coronary artery bypass grafting patients in Iran

Background In the present study, arterial and venous blood was collected from patients who were candidates for elective coronary artery bypass grafting (CABG); the blood was stored for 28 days and cellular, biomechanical, and hematological changes in blood were compared to determine whether stored arterial blood is superior to stored venous blood. Methods The present follow-up comparative study included 60 patients >18 years of age, with hemoglobin >14 mg/dl and ejection fraction >40% who were candidates for CABG. After induction of anesthesia, 250 ml of arterial or venous blood was drawn from patients (arterial blood group and venous blood group). Laboratory blood samples were taken at specified times from the collected blood and re-injected into the patients after CABG. Results Significant differences were observed in pH, partial pressure of carbon dioxide (PCO2), partial pressure of oxygen (PO2), bicarbonate (HCO3), and glucose values at several time points between the groups. Other parameters such as urea and creatinine did not show any significant differences between the groups. Conclusions Twenty-eight days of storage can have a negative effect on some of the cellular, biochemical, and hematological components of arterial and venous blood; however, the quality of stored arterial blood and venous blood does not differ significantly

2nd National Congress on Clinical Case Reports, December 26 and 27, 2018

The second annual meeting of Clinical Case Report (CCR) has been held in Karaj, Iran from the 26th to the 27th of December, 2018 (Figure 1). The congress was organized by the Clinical Research Development Center of Shahid Rajaei Educational and Therapeutic Center, Alborz University of Medical Sciences together (Figure 2), with a Scientific Committee including some of the faculty members of the university (Table 1). The conference program was organized into the following sessions: · Cardiovascular · Nursing · Pediatrics · Obstetrics and Gynecology · Internal Medicine · Surgery · Urology · Neurology and Neurosurgery · Orthopedics · Psychiatry · Laboratory Sciences · Infectious diseases · Traditional Medicine This meeting brought together clinician and researchers from several prestigious universities and research centers throughout Iran including Rasht, Torbat Heidarieh, Qazvin, Neyshahpour, Ardebil, Isfahan, Khorramabad, Tabriz, Hamedan, Marand, Bushehr, Mashhad, Ahvaz, Sanandaj, Bojnourd, Sabzevar, Kashan, Gorgan, Ilam, Dezful, Yazd, Tehran, Urmia and Semnan, as well as leading researchers from countries such as Turkey. Participants were invited to submit scientific contributions, as oral presentations or posters. After evaluation of the 858 abstracts received, the Scientific Committee selected 40 of them for oral presentations, and accepted 231 as posters

Indoor environment assessment of special wards of educational hospitals for the detection of fungal contamination sources: A multi-center study (2019-2021)

Background and Purpose: The hospital environment was reported as a real habitat for different microorganisms, especially mold fungi. On the other hand, these opportunistic fungi were considered hospital-acquired mold infections in patients with weak immune status. Therefore, this multi-center study aimed to evaluate 23 hospitals in 18 provinces of Iran for fungal contamination sources.Materials and Methods: In total, 43 opened Petri plates and 213 surface samples were collected throughout different wards of 23 hospitals. All collected samples were inoculated into Sabouraud Dextrose Agar containing Chloramphenicol (SC), and the plates were then incubated at 27-30ºC for 7-14 days.Results: A total of 210 fungal colonies from equipment (162, 77.1%) and air (48,22.9%) were identified. The most predominant isolated genus was Aspergillus (47.5%),followed by Rhizopus (14.2%), Mucor (11.7%), and Cladosporium (9.2%). Aspergillus(39.5%), Cladosporium (16.6%), as well as Penicillium and Sterile hyphae (10.4% each), were the most isolates from the air samples. Moreover, intensive care units (38.5%) and operating rooms (21.9%) had the highest number of isolated fungal colonies. Out of 256 collected samples from equipment and air, 163 (63.7%) were positive for fungal growth.The rate of fungal contamination in instrument and air samples was 128/213 (60.1%) and 35/43 (81.2%), respectively. Among the isolated species of Aspergillus, A. flavus complex (38/96, 39.6%), A. niger complex (31/96, 32.3%), and A. fumigatus complex (15/96, 15.6%) were the commonest species.Conclusion: According to our findings, in addition to air, equipment and instrument should be considered among the significant sources of fungal contamination in the indoor environment of hospitals. Airborne fungi, Hospital, Indoor air, Equipment, Sources of fungal contamination in the indoor environment of hospitals

Bilateral Trade Creation Caused by D8 Formation among its Member Countries: The Difference-in-Differences Approach

During recent years, the growth of international trade has been more than that of world output, and countries have shown more interest in forming regional unions and agreements to increase their trade. The aim of this study is to estimate the net effect of D8 formation on trade of its member countries. In this regards, a gravity model has been applied using panel data method for period 1990-2014, in accordance with a Difference-in-Differences (DID) approach and Poisson-Pseudo maximum likelihood method. The D8 countries are selected as target group and select member countries of Organization of Islamic Cooperation are chosen as control group. Our Results show that the net effect of D8 formation on trade among its member countries is positive and significant. Also, the bilateral trade among member countries has had a direct relationship with their size and common language and inverse relation with the distance between them

The Explicit Instruction of Reading Strategies: Directed Reading Thinking Activity vs. Guided Reading Strategies

Investigating the efficiencies and deficiencies of reading strategies is one of the noticeable issues in the related theory and research in reading comprehension instruction. This study was to examine the impact of Directed Reading Thinking Activity (DRTA) and Guided Reading (GR) on reading comprehension. Sixty three Iranian students of grade one in Shahed high school in the city of Bojnourd took part in the study. They were assigned in three groups, one control and two experimental groups. The instruction lasted for ten weeks. This study utilized a pretest posttest control group in quantitative quasi- experimental design. The same reading comprehension test was administered as pre-test and post-test. The results were twofold: First, the instruction of learning strategies could foster reading comprehension skill. Second, while the explicit instruction of both strategies could improve the students' reading comprehension skill, Directed Reading Thinking Activity had a more significant positive effect than Guided Reading.

Impact of perlator on the cooling liquid flow and hottest point temperature of superconducting windings in HTS transformer

The generated heat by the superconducting windings and the other parts such as current leads in transformer increases the hottest point temperature (HPT) and causes the high temperature superconducting (HTS) windings to quench. Due to the properties of superconducting windings, reducing the HPT is of critical importance for the stable operation of the HTS transformer. The cooling system of HTS transformers, not only provides the cryogenic temperature for the proper operation of the superconductors but also is responsible for dissipating the generated heat by the windings. In this paper, the effect of the angle of inlet pipes in cooling system was investigated. This was a simple and effective solution which increases the heat transfer in liquid nitrogen. It was shown that inlet angle has a significant effect on the flow turbulence and the windings temperature. The Perlator is used as a lattice sheet which is installed inside the inlet valve and increases the turbulence of inlet flow of liquid nitrogen to increase heat transfer and reduce HPT. The thermal analysis is obtained by finite element method using ANSYS Fluent software. The influence of changing the inlet pipe angle and different structures of Perlator on heat transfer was investigated

Spatiotemporal Variables of Gait in Patients with Adolescent Idiopathic Scoliosis and Healthy Individuals

Objective: The effects of scoliotic deformity on the biomechanics of gait are not clear. The aim of this study was to compare the spatiotemporal variables during gait in adolescent idiopathic scoliosis and healthy individuals. Methods: Eighteen healthy adolescent girls and 19 adolescent patients with idiopathic scoliosis that were matched for age, height, mass and BMI participated in this study. Using a Vicon motion analysis system (100 Hz), subjects&rsquo; gait were recorded and spatiotemporal variables including velocity, cadence, stride and step length, initial heel contact and toe off instants (% of gait cycle), duration of single and double supports, duration of the steps and strides of the right and left feet as well as the asymmetry indices (AI) for all variables were evaluated. ANOVA was run at a significance level of p<0.05 to analyze the data. Results: It was found that the cadence, velocity, stride and step length, stride and step time, duration of double support and single support, and heel contact and toe off instants were similar in both groups (p>0.05). Also, there were not any between group differences in asymmetry indices for all variables (p>0.05). Conclusion: spatiotemporal variables in right thoracic scoliotic patients were similar to healthy individuals; there for, it could be suggested that scoliosis does not affect the spatiotemporal variables. Other biomechanical parameters should be examined for etiology of scoliosis

The effect of laughter Yoga on general health among nursing students

Promotion and provision of individuals’ health is one of the bases for development in societies. Students’ mental health is very important in each society. Students of medical sciences universities, especially nursing students, are under various stresses in clinical environment, in addition to the stress they experience in theoretical education environment. With regard to the importance of nursing students’ general health and considering the various existing strategies to promote general health components, use of complementary treatments is more considered because of their better public acceptance, low costs, and fewer complications. One ...Iranian Journal of Nursing and Midwifery Research Wolters Kluwer -- Medknow Publications The effect of laughter Yoga on general health among nursing students Mohsen Yazdani, Mojtaba Esmaeilzadeh, [...], and Firouz Khaledi Additional article information Abstract Background: Promotion and provision of individuals’ health is one of the bases for development in societies. Students’ mental health is very important in each society. Students of medical sciences universities, especially nursing students, are under various stresses in clinical environment, in addition to the stress they experience in theoretical education environment. With regard to the importance of nursing students’ general health and considering the various existing strategies to promote general health components, use of complementary treatments is more considered because of their better public acceptance, low costs, and fewer complications. One of the new strategies in this regard is laughter Yoga. The present study was conducted with an aim to define the effect of laughter Yoga on general health among nursing students. Materials and Methods: This is a quasi-experimental two-group three-step study conducted on 38 male nursing students in the nursing and midwifery school of Isfahan University of Medical Sciences in 2012. In the study group, eight 1 h sessions of laughter Yoga were held (two sessions a week), and in the control group, no intervention was conducted. The data of the present study were collected by Goldberg and Hiller's General Health Questionnaire and analyzed by SPSS version 12. Results: The findings showed a significant difference in the mean scores of general health before and after laughter Yoga intervention in the two groups of study and control. Conclusions: The findings showed that laughter Yoga had a positive effect on students’ general health and improved the signs of physical and sleep disorders, lowered anxiety and depression, and promoted their social function. Therefore, laughter Yoga can be used as one of the effective strategies on students’ general health