Showing 9 results for ghanei
Volume 1, Issue 1 (11-2009)
Abstract
This article, using a sociological perspective, attempts to understand the application of empirical methods in the Iranian-Islamic golden age, especially during 130-500 Hegri. It distinguishes different approaches to rational knowledge and laying emphasis on empirical science in the mentioned period. The theoretical framework of the present paper is the sociology of science, especially the interpretative sociology of science in the Weberian and Mertonian traditions. This framework provides the possibility of studying internal cultural factors, beyond cultural exchange and external transfer of scientific knowledge. The author, through studying the history of natural sciences and humanities at the Iranian-Islamic golden age, shows how applying empirical methodology of science to, for example, historical, geographical, and anthropological knowledge, have been influenced by the social interpretation of prophetic religion. In particular, it is indicated that the cultural elements of social belonging, equality and mutual understanding of Shoobieh ethics influenced the above mentioned areas of scientific endeavor.
Volume 9, Issue 3 (Summer 2021)
Abstract
Aims: We aimed to investigate the association between health beliefs and exercise behavior in infertile women at risk of developing osteoporosis.
Instrument & Methods: This cross-sectional study was conducted in Sanandaj city, west of Iran, in 2018. Four hundred and eighty-three infertile women were included in the study through convenience sampling from 35 comprehensive healthcare centers. Standardized face-to-face interviews were conducted using established and reliable instruments to assess exercise behavior and health beliefs. Data were analyzed by SPSS 22 using Logistic regression models, Chi-square, independent t-test, and Pearson correlations.
Findings: Employed women compared to homemakers had substantially higher odds of adopting exercise behaviors (OR=3.19; 95% CI=1.53-6.66; p<0.01). Moreover, the odds of exercise behavior adoption increased with self-efficacy (OR=1.35; 95% CI=1.2-1.52; p<0.01), and decreased with perceived barriers (OR=0.9; 95% CI=0.84-0.97; p<0.01).
Conclusion: It is essential to increase perceived self-efficacy and reduce perceived barriers to promote exercise behaviors in infertile women. Consequently, health professionals should develop or adopt appropriate strategies to decrease barriers and increase self-efficacy to enhance exercise behaviors in this group of women.
Volume 10, Issue 1 (Winter 2022)
Abstract
Aims: Social media has increasingly been used as a tool to deliver health education. This study examined the effect of a Telegram delivered oral health education program on self-efficacy, perceived benefits and barriers, gingival index, motivational beliefs, and dental cleaning behavior among students with gingivitis.
Materials & Methods: This randomized controlled trial was conducted in Sanandaj city, Iran, from January to December 2019. A total of 160 students were recruited from 8 schools and randomized into intervention and control groups. An oral health education program aimed at increasing dental cleaning behavior was developed based on the trans-theoretical model. The program consisted of 9 sessions delivered via a social media app called Telegram for 24 weeks. Outcomes included dental cleaning behavior, perceived self-efficacy, benefits, barriers, motivational beliefs, and gingival index, measured at baseline and 24 weeks after the intervention.
Findings: There were significant differences between the intervention and the control groups in the mean scores of perceived self-efficacy (p=0.01), perceived benefits (p=0.01), motivational beliefs (p=0.01), and gingival index (p=0.01) after the intervention. Further, 71.3% (n=57) of students in the intervention group (versus 10.1% (n=10) in the control group) performed the dental cleaning behavior after intervention (p<0.01).
Conclusion: The findings showed that an oral health education program delivered via social media apps could improve students' oral health. Social media apps could reach a broad range of users, thus could improve access to oral health education programs.
Volume 10, Issue 3 (10-2010)
Abstract
Condition monitoring of BLDC motors due to their important applications is gaining more and more significance. Rotor eccentricity is one of the most important sources of faults in these motors. Up to now, detection methods of this fault under nonstationary conditions are limited to complicated and time-consuming methods using wavelets and Cohen class algorithms which are difficult to implement and need heavy computations to run. In this paper a novel method based on the modified Motor Current Signature Analysis method is proposed to detect the rotor eccentricity fault of BLDC motor operating under varying speed conditions. Stator current of healthy and faulty motor which are modeled by the Finite Element Method are simulated. By changing the representation of stator current from time basis to angle basis, the current signal will become stationary. Thus there is no need for methods using time-frequency analysis. Afterwards the Order Analysis Method is applied to the simulated healthy and faulty angle-based current signal and the results are compared with each other. Finally, the fault is detected by this comparison.
Takavar Mohammadian, Sakineh Mashjoor, Saeideh Lotfi, Hassan Bakhshi, Reza ghanei-Motlagh,
Volume 11, Issue 3 (8-2022)
Abstract
Today, due to the confirmation of the existence of polyphenolic compounds with antioxidant properties in pomegranate peel, the study of its application potential in food health and fishery products has been the focus of researchers. In the present study, the effects of oral administration of ethanolic extract of pomegranate peel (Punica granatum L.) (Dose: 600 mg/kg) on functional changes of antioxidant system and biochemical parameters of blood serum of common carp (Cyprinus carpio) during a 45-day exposure against stocking density stress was monitored. In this regard, fish were randomly divided into 6 groups (3 treatment groups and 3 control groups with different levels of stocking density (3, 5, and 10 kg / m3) and three replications. At the end of the exposure period, fish bloodletting and serum preparation were performed. The results of this study did not show a significant increase in biochemical parameters (phosphorus, chlorine, magnesium, calcium, and triglycerides) as well as the activity level of some enzymes and antioxidant compounds such as SOD and MDA in fish serum compared to the control group. However, for stress indicators such as glucose and cholesterol and antioxidant activity such as CAT and GSH, production level has been significant. According to the findings, oral administration of pomegranate peel extract dietary supplement is recommended for consumption in dense aquaculture centers of common carp fish.
Fatemeh ghanei, Mehran Loghmani, Omid Kohkan,
Volume 11, Issue 4 (12-2022)
Abstract
The accumulation of nanoparticles in the environment and aquatic ecosystems due to their wide application in industries, agriculture, medicine and pharmaceuticals has caused an increasing concern about the environment and increasing exposure to nanoparticles in ecosystems and humans. Iron oxide nanoparticles easily enter the bloodstream, accumulate in different tissues and cause damage to these tissues. Therefore, in this research, changes in the intestinal tissue of gray mullet fish (M. cephalus) and tissue accumulation in oral exposure to iron oxide nanoparticles were investigated.
110 pieces of young gray mullet after 2 weeks of adaptation were treated in four-time groups of 1, 7, 14 and 28 days, and one group was considered as a control. The mullet fish received iron oxide nanoparticles twice a day at the rate of 15 mg/kg attached to the food. The results showed that although the amount of tissue iron increased significantly only in the 28-day group, the consumption of iron oxide nanoparticles in almost all groups increases the tissue accumulation of iron in the intestine. The intestinal histological study showed changes such as the increase in the number and size of goblet cells, destruction of microvilli structure, bleeding and degrees of necrosis, and the intensity and extent of the changes in the intestinal tissue increased with increasing exposure time.
These observations showed that the consumption of iron oxide nanoparticles has a negative effect on intestinal function and causes iron accumulation and the occurrence of time-dependent injuries.
Volume 11, Issue 4 (Fall 2023)
Abstract
Aims: Professionalism encompasses clinical competence, communication skills, and ethical and legal awareness. The assessment of professional ethics varies among different groups based on their characteristics. This study aimed to develop and validate an ethical behavior intention instrument for medical students, based on the theory of planned behavior.
Instrument & Methods: In this cross-sectional study, an item pool was generated based on an extensive literature review. Then, psychometric features, such as face validity (qualitative and quantitative), content validity (qualitative and quantitative), item analysis, and construct validity (exploratory factor analysis) were evaluated. Finally, the reliability was assessed using internal consistency (Cronbach's alpha).
Findings: A total of 200 medical students filled out the questionnaires, with a mean age of 21.84±4.47 years. In face validity, content validity ratio, and item analysis, six, nine, and three items were removed, respectively. In the exploratory factor analysis, six factors of gaining informed consent, accepting role limitations and collaborating with the treatment team, respect for colleagues and professors, abstract norms, perceived behavior control, and respect for patient values, needs, and culture together explained 51.128% of the total variance. Moreover, seven items were not included in any factor. The internal consistency of the entire questionnaire and its dimensions was acceptable.
Conclusion: The ethical behavior intention scale, which is designed based on the theory of planned behavior, is a valid and reliable scale that covers and measures the standards of professional ethics in medical students.
Volume 24, Issue 1 (Spring 2021)
Abstract
Measles virus, negative-strand RNA viruses, has been known as an ideal candidate in oncolytic virotherapy. Recombinant measles virus can encode genes of interests for reaching several aims. Replication efficiency of oncolytic virus in tumoral cells is a key parameter in efficient tumor eradication. Products of P gene (P/V/C) support measle virus to circumvent IFN 1 as the main response of innate immune system against viruses. But vaccine strains used in oncolytic therapy studies comprise several mutations in their P gene sequences. These mutations affect replication efficacy which cause attenuation of measles strains applicable in vaccination. So, arming vaccine strains with the wild type P gene is helpful to reach high virus titer. Here at this study, we have expanded a protocol with details for engineering and efficient recovery of measles virus for different aims.
Volume 27, Issue 4 (Fall 2024)
Abstract
Introduction: Many studies have addressed the side effects of anabolic steroid abuse in different tissues such as heart tissue. The purpose of this research is to study the effect of 8 weeks of resistance training and testosterone consumption on some indicators of heart tissue damage in male rats.
Methods: 21 adult male Wistar rats aged 8 weeks (220 ± 10 g) were randomly divided into 3 groups: control, training (resistance training) and training + testosterone groups. The intervention of resistance exercise and testosterone injection lasted for 8 weeks. Resistance exercises were performed 5 times a week in the form of climbing a step ladder with resistance applied by tying a weight to the tail (4 sets, 6 repetitions in each set). Testosterone enanthate was injected intramuscularly 3 days a week (20 mg/kg). One-way ANOVA and Tukey's post hoc test were used to compare variables.
Results: Creatine kinase-MB (CK-MB) expression increased significantly in the training + testosterone compared to the control group (P<0.05). No significant difference was observed in troponin expression between the studied groups (P>0.05).
Conclusion: It seems that testosterone enanthate administration during resistance training leads to cardiac tissue damage in laboratory rats.
