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Open Access Article
1 - Examination of Inflation Expectation formation: Experimental Approach(Case Study: Kermanshah Capital Market Activists)
Shahram Fattahi Kiumars Soheili Mohammad BahmaniInflation expectations as one of the factors influencing inflation formation plays a decisive role in economic policy. Decision making and decision making in relation to issues such as consumption, savings, production, investment, the choice of asset portfolios, wages, MoreInflation expectations as one of the factors influencing inflation formation plays a decisive role in economic policy. Decision making and decision making in relation to issues such as consumption, savings, production, investment, the choice of asset portfolios, wages, exchange rates and interest rates are all shaped by inflationary expectations.In this study, the problem of formation of inflationary expectations among capital market participants in laboratory space using Z-tree software has been studied. To this end, Taylor's expanded rule first examined the central bank's behavior toward inflationary depreciation and estimated the Bank's central counterpart effect. The average inflation expectations of the participants in this experiment was 14.12%. Based on the results of this study, at a significant level, 95% of 34.7% of participants in this experiment formed their expectations based on the rational expectation pattern, 22.1% of individuals based on the matching pattern of expectations and 43.2% based on learning models. Therefore, monetary authorities, with the knowledge of how the formation of inflationary expectations among capital market participants can be appropriate policies, in line with the direction of existing liquidity towards the capital market, which controls inflation and prevents the movement of liquidity in the community towards the foreign exchange market and gold To adopt. Manuscript profile -
Open Access Article
2 - Comparison of Services' Quality in Outsourced and Non-Outsourced Clinical Laboratory in Ahvaz University Hospitals, 2016
fateme arastoozadeh Amin TorabipourIntroduction: hospital services' outsourcing is a key strategy towards is improvement the quality of services. The aim of study was determine the quality of services in outsourced and non-outsourced clinical laboratory of educational hospitals in Ahvaz, 2016. Methods: T MoreIntroduction: hospital services' outsourcing is a key strategy towards is improvement the quality of services. The aim of study was determine the quality of services in outsourced and non-outsourced clinical laboratory of educational hospitals in Ahvaz, 2016. Methods: This is a cross-sectional study. In this study 643 patients were selected randomly. Data were gathered by SERQUAL questionnaire. This tool included 22 questions and 5 dimensions including tangibility, reliability, responsiveness, assurance, empathy about services quality. Results: services quality in outsourced clinical laboratory centers was significantly higher than non-outsourced clinical laboratory centers (P=0.001). The mean of waiting time to receive services and sampling time of patient was 37.29±28.08 and 4.48±1.6 min respectively. The mean of waiting time in outsourced clinical laboratory was significantly lower than non-outsourced clinical laboratory (P=0.001). Conclusion: the results showed that outsourcing strategy had positive relationship with services quality of clinical laboratory units. Also, waiting time to receive services in outsourced clinical laboratory centers was lower than non-outsourced clinical laboratory centers. Manuscript profile -
Open Access Article
3 - Investigating the Role of the Covid-19 Epidemic on the Burden of Those who Refer to the Clinical Laboratory of Amir al-Momenin Hospital in Sistan Region
omolbanin nosratpanah , Hasan Abolghasem-Gorji Rafat BagherzadehIntroduction: Cost management and reduction in healthcare resource utilization while maintaining the quality of laboratory services and making sure of the continued provision of servicesare one of the basic challenges facing hospital managers under COVID-19 pandemic con MoreIntroduction: Cost management and reduction in healthcare resource utilization while maintaining the quality of laboratory services and making sure of the continued provision of servicesare one of the basic challenges facing hospital managers under COVID-19 pandemic conditions. Hospital managers have to control laboratory performance, identify the bottlenecks, and finally decide which program is necessary for reducing inappropriate utilization of laboratory resources and increasing hospital revenue. Accordingly, study of the workload in clinical laboratories provides them with valuable information to develop and implement policies that improve laboratory performance. Methods: This applied cross-sectional research followed a descriptive-analytical method for analyzing the workload of the clinical laboratory of Amirul Mominin Ali Zabol Hospital in Sistan region in order to investigate the volume of referrals in two years before and after the start of the epidemic. Covid-19 and determining the causes of possible changes has been done. Results: The research findings indicated that the number of inpatients referring to the hospital laboratory has decreased by 18.7% and outpatients by 49.7%, 2 years into the Covid–19 pandemic in comparison with the same period before it, and the number of tests has decreased by 0.025% in the inpatient ward and by 55.13% in the outpatient ward compared to the pre-epidemic period, on the other hand, the average number of test for each person has increased by 21.09% in the inpatient ward and has decreased by 8.9% in the outpatient ward. Conclusion: Based on research results, the Covid–19 pandemic affects the workload of clinical laboratories. Cancellation of elective hospitalization cases, decrease of patients' visits to the hospital, closure of non-COVID wards and clinics, reduction in accidents, increases in economic problems, and uncertainty on the quality of services were among the mentioned factors that decreased the number of patients visiting the hospital. Manuscript profile -
Open Access Article
4 - Design financing model Small and Medium Enterprises (SMEs) with (DANP) approch
Bizhan Nosrati Barandagh Abas Toloei Eshlaghi Ehsan Sadeh Zeinolabedin Amini SabeghThe purpose of this paper is to design small and medium-sized enterprises (SMEs) financing model. The present research is distinct from other papers published on SMEs financing in that it identifies financing criteria using fuzzy screening (FC), considers the relations, MoreThe purpose of this paper is to design small and medium-sized enterprises (SMEs) financing model. The present research is distinct from other papers published on SMEs financing in that it identifies financing criteria using fuzzy screening (FC), considers the relations, and weighs these criteria using Decision Making Trial and Evaluation Laboratory model based on Analytic Network Process (DANP). Statistical population and sample included 23 senior experts of SMEs industries, senior managers of banks, and university professors familiar with the concepts of SMEs financing. The results indicated that 8 dimensions and 20 criteria were identified using FC and expert opinions. Moreover, the results of DANP method showed that attracting new members is the most important criterion of SMEs financing, and loan rate from procuration and proprietary sources of banks is ranked the second. The other criteria were also weighed and ranked. Considering the causal relationships of criteria showed that revaluation of assets is the most effective criterion, and bank loan growth rate is the most affected criterion in SMEs financing. The research findings can enhance decision making and decision taking in financial performance improvement, and experts can be provided with optimal financing practices so as to develop the economy of Iran and growth these enterprises. Manuscript profile -
Open Access Article
5 - Micro-Finite Element Model to Investigate the Mechanical Stimuli in Scaffolds Fabricated via Space Holder Technique for Cancellous Bone
Sayed Alireza Hashemi Saeid Esmaeili Mazyar Ghadirinejad Saeed Saber-Samandari Erfan Sheikhbahaei Alireza Kordjamshidi Amirsalar Khandan -
Open Access Article
6 - Comparison of Learning and Reminder Levels of Multivariate Learning Classroom Technology and Inverted Classes and Elementary Classes
Alireza Badeleh Hamed Mahmoodzadeh Reza KabirizadehThe research seeks to find out whether there is a difference in the level of learning and reminder from training to multimedia classroom technology, classroom, reverse, and classroom classes in elementary sixth science. The research method is quasi-experimental. The sam MoreThe research seeks to find out whether there is a difference in the level of learning and reminder from training to multimedia classroom technology, classroom, reverse, and classroom classes in elementary sixth science. The research method is quasi-experimental. The sampling method was a cluster sampling, so that at first, several areas of Karaj district 3 were randomly selected and then a school in that area was selected randomly. The statistical population of the study includes all 8304 elementary school students in the sixth grade of boys' elementary schools in the academic year of 1996-96 in the 3rd district of Karaj. The research tool was a researcher-made multi-test, whose validity was confirmed by the outstanding Kishiyur professors and its reliability was 0.81 by Cronbach's alpha method. Data was analyzed using descriptive and inferential statistics using SPSS version 20 software. The results showed that reverse learning method has a positive effect on students 'learning and learning, and other methods of classroom teaching, multimedia class, and traditional classes do not affect students' learning and learning. Manuscript profile -
Open Access Article
7 - Fumigant toxicity of essential oils from Mentha longifolia, Tagetes minuta and Salvia macrosiphon against adult of Triblium castaneum
Yasamin Motemedi Nazila Saghaei Vahid RowshanIn order to find a suitable alternative to conventional pesticides, fumigant toxicity of essential oils from Mentha longifolia, Tagetes minuta and Salvia macrosiphon were tested against adult of Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) on laborator MoreIn order to find a suitable alternative to conventional pesticides, fumigant toxicity of essential oils from Mentha longifolia, Tagetes minuta and Salvia macrosiphon were tested against adult of Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) on laboratory condition. The experiment was conducted using a completely randomized design of factorial experiment with five concentrations and three replications at 25±10C, 60±5% R.H in darkness. The results showed that the percentage of mortality was increased with increase in concentration and exposure of time. The results also showed the effect of fumigant toxicity of Mentha longifolia was weaker than Salvia macrosiphon on the studied insects. The LC50 values were evaluated by M. longifoli, T. minuta and S. macrosiphon were 9.595, 12.434 and16.649 μl/l after 12h as well as 7.422, 9.128 and 13.071 μl/l after 24h for T. castaneum, respectively. Mean adult mortalities of Tribolium castaneum, at the highest concentration of essential oils (25μl/l), by M. longifolia, T. minuta and S. macrosiphon as 76.6%, 73.3% and 63.3% after 12h as well as 90%, 76.6%, and 70% after 24h, were recorded, respectively. It was found that plant essential oils could be used as a safe pesticide or model for new synthetic pesticides to control of insect pests Manuscript profile -
Open Access Article
8 - Comparison of some biological parameters of jasmine moth, Palpita Unionalis Hubner (Lep., Pyralidae), on olive and privet leaves in laboratory conditions
N. Azimizadeh M. Movahedi Fazel A. ParvarThe Jasmine moth Palpita unionalis Hubner (Lep., Pyralidae) is one of the most important pests of plants from Oleaceae, such as privet (Ligustrum ovalifoliumHassk) and olive (Olea europea L.). This insect has been introduced to Iran in recent years. Therefore, it needs MoreThe Jasmine moth Palpita unionalis Hubner (Lep., Pyralidae) is one of the most important pests of plants from Oleaceae, such as privet (Ligustrum ovalifoliumHassk) and olive (Olea europea L.). This insect has been introduced to Iran in recent years. Therefore, it needs extensive researches according to its new ecological conditions. In this regard, the plant host preference of the pest was studied to find an alternative plant host for rearing the jasmine moth. The biological parameters of this moth compared when reared on the two plant hosts (north of Iran). Pupae of the pest were collected from the trees and nurseries of olive at Tarom region. Adults emerged were transferred to growth chamber for rearing at the conditions of 25±0.5 ˚C, RH %65±5 and 12L: 12D. Biological parameters such as number and period of generation, larval feeding rate, larval development time and mortality, sex ratio and adults longevity were compared on olive and privet. The pest has five instars on two hosts but larval duration is shorter on privet. Also it feeds much more quantity of leaves of privet. The rate of mortalities were not different significantly. This insect produced 8 and 10 complete generations on olive and privet, respectively. According to the accomplished studies, host suitability was similar, but the privet is more available and inexpensive than olive for laboratory rearing of jasmine moth. Manuscript profile -
Open Access Article
9 - Integrated effects of diatomaceous earth and Gamma ray on mortality of Red Flour beetle Tribolium castaneum (Col.: Tenebrionidae) in laboratory conditions
F. Shakhsi Zare M. Ghasemzadeh A. Sabetghdam N. BaghaeiThe study were done during 2010-2011 to investigate the integrated effects of different doses of gamma radiation and diatomaceous earth (INSECTO®) on Red Flour Beetle Tribolium castaneum (Herbst) in laboratory conditions (27±1°C, 60±5% humidity, da MoreThe study were done during 2010-2011 to investigate the integrated effects of different doses of gamma radiation and diatomaceous earth (INSECTO®) on Red Flour Beetle Tribolium castaneum (Herbst) in laboratory conditions (27±1°C, 60±5% humidity, dark room). In this study, adults of red flour beetle were grown on mashed corn (50 gram) and then treated with different doses of Gamma ray (100, 500 and 1000 Gray) and three doses of diatomaceous earth (0.5, 1 and 1.5 g kg-1). Percentage of mortality were recorded after 1, 2, 7, 14, 21, 28, 35 and 42 days and compared with control. Results showed significant differences among various doses of diatomaceous earth (DE) and Gamma ray and their interactions in most days after treatment. In comparing the means mortality in different doses of diatomaceous earth (DE) and various doses of Gamma ray, most mortality were recorded after 35 days in 1.5 gr/kg diatomaceous earth and 1000 Gray Gamma ray separately. In combination of Gamma ray and diatomaceous earth, most mortalities were recorded after 35 days for 1 and 1.5 g kg-1 (DE) combined with 500 and 1000 gray Gamma ray. It is concluded that 1 gkg-1 (DE) combined with 500 gray gamma ray is the best combination of the lreatmants. Manuscript profile -
Open Access Article
10 - Using the Results of CPTu to Identify the Subsurface Sediment Layers in Urmia Lake Bridge Site, NW Iran
Mohammad Reza Baghban Golpasand Mohammad Reza Nikudel Ebrahim Asghari-Kaljahi -
Open Access Article
11 - مطالعه آبشستگی در اثر تنگشدگی موضعی آبراهه در مجاورت تکیهگاه پل
سینا شیر محمدی ابراهیم نوحانیتکیه‎گاه یک پل در بستر یک آب‎راهه موجب کاهش سطح مقطع و انقباض جریان می‎شود. در چنین شرایطی علاوه بر آب‎شستگی موضعی تکیه‎گاه سازه، زمینه لازم برای وقوع پدیده آب‎شستگی انقباضی نیز فراهم می‎شود. پژوهش حاضر با هدف بررسی تأثیر تنگ‎شدگی بر آب&l Moreتکیه‎گاه یک پل در بستر یک آب‎راهه موجب کاهش سطح مقطع و انقباض جریان می‎شود. در چنین شرایطی علاوه بر آب‎شستگی موضعی تکیه‎گاه سازه، زمینه لازم برای وقوع پدیده آب‎شستگی انقباضی نیز فراهم می‎شود. پژوهش حاضر با هدف بررسی تأثیر تنگ‎شدگی بر آب‎شستگی تکیه‎گاه پل در اثر تنگ‎شدگی‎هایی با زوایای مختلف انجام شد. برای این منظور، سه زاویه تنگ‎شدگی با زوایای 30، 60 و 90 درجه در نظر گرفته شد و تکیه‎گاه‎ها در سه موقعیت ابتدا وسط و انتها مورد بررسی قرار گرفتند. نتایج این مطالعه نشان داد که با کاهش زاویه برخورد تنگ‎شدگی عمق آب‎شستگی کاهش می‎یابد و کاربرد شکاف موجب کاهش آب‎شستگی تکیه‎گاه به میزان درصد نسبت به حالت تکیه‎گاه بدون شکاف می‎گردد. Manuscript profile -
Open Access Article
12 - Identification and analysis of ergonomic rules in laboratory clothing with diagnosis in biological accidents (providing a new sample of laboratory work clothes)
Seyed Mahmoud Tabatabai Hanzaei Ehsan zarinabadi Parvaneh MokhtariHuman protection against possible risks in the environment, when it is related to the type of job of the consumer, attracts more attention. And on the other hand, it should be noted that in addition to protecting the body,the energy consumption conditions of the human b MoreHuman protection against possible risks in the environment, when it is related to the type of job of the consumer, attracts more attention. And on the other hand, it should be noted that in addition to protecting the body,the energy consumption conditions of the human body should be reduced through the design according to the type of work in order to achieve more efficiency. Despite the different jobs and the difficulty of work, work clothes are of great importance to protect the person from environmental hazards and to feel comfortable wearing them, and to be able to have the highest work efficiency with less energy consumption and minimal physical injuries. The collection of research, library and field information and the statistical population of this research is all the employees of the laboratory department of Arak University of Medical Sciences, including the selection of 30 people as a simple random sample for the survey. The analysis method of this research is qualitative and quantitative, from different sources. They are collected, reviewed and classified and then analyzed. In connection with the collection of information related to the literature of the subject and the background of the research from the library method and to reject or confirm the research questions, the research method is used. In this research, information about laboratory clothing with a protective approach in biological accidents is extracted from reliable sources. and then the design of the survey questionnaire and the design of new laboratory clothing samples will be discussed. Manuscript profile -
Open Access Article
13 - Mechaverse: The Iran’s first metaverse of mechanical engineering
Mohammad Hossein DavarpourAlong with the considerable growth of emerging technologies (such as artificial intelligence and big data, internet of things, blockchain, cloud computing, etc.) and expansion of their application in people’s everyday life, one of the technological concepts which MoreAlong with the considerable growth of emerging technologies (such as artificial intelligence and big data, internet of things, blockchain, cloud computing, etc.) and expansion of their application in people’s everyday life, one of the technological concepts which has received more attention recently is the Metaverse or meta-universe. Metaverse as a virtual world is based on Virtual Reality technology and simulates environments, objects, people and their communications in a 3D space and provides a near-reality experience known as immersive experience for users. One of the contexts which is noticeably affected by Metaverse is education. Using VR and Metaverse, we can cope with many existing educational challenges such as space and time limitations, lack of sufficient raw materials, difficulties of equipment maintenance, etc. using cost-effective and low-risk solutions. In this paper, Mechaverse, the Iran’s first domain-specific metaverse of mechanical engineering is introduced which is designed and implemented to provide laboratory courses and skill workshops related to physics and mechanics. Afterwards, necessary tools for development of Mechaverse are described and some defined practical courses and the mechanisms of accessing and using them are discussed. Manuscript profile -
Open Access Article
14 - Designing and development of a solar radiation system for atmospheric correction of satellite images
حسن حسنی مقدم Omid Coupanian Abbas Bashri Hamid Reza KhodadadiApplying atmospheric corrections in order to reduce the attenuation effects of the atmosphere on the quality and accuracy of the recorded data, requires a comprehensive knowledge of the conditions, characteristics, and behavior of the atmosphere as the sensor passes thr MoreApplying atmospheric corrections in order to reduce the attenuation effects of the atmosphere on the quality and accuracy of the recorded data, requires a comprehensive knowledge of the conditions, characteristics, and behavior of the atmosphere as the sensor passes through the target coordinates. Nowadays, many equipment's, models and algorithms are used to study the components of the atmosphere. For this reason, in this research, a native solar radiation system was designed and built to calculate the optical depth of air aerosol. In order to simulate and investigate the effects of changes in each atmospheric component, the MODTRAN model was used in PCModWin environment. In this electro-optical system, at two wavelengths of 450 and 550 nm, due to the absorption range of the air aerosol, in two different days in terms of the amount of pollutants in the atmosphere, intense data were recorded. In order to ensure the uniformity and linearity of the response of the designed electro-optical system to measure changes in the intensity of sunlight, radiometric calibration of this system was performed. Using atmospheric models, from the recorded intensity data, the optical depth of the weather and the horizontal atmospheric metrics were calculated. In order to verify and evaluate the performance of the designed system, optical depth data obtained from MODIS (Aqua) sensor and horizontal exponential data of Mehrabad Airport meteorological station were used. The results of the accuracy evaluation showed that the calculation of the optical depth by the system designed and the MODIS sensor (Aqua) both shows a number of 0.5 in the passing hour of the satellite. The results also show a good correlation between the horizontal visibility calculated in this study and the data obtained from the reference meteorological station. Manuscript profile -
Open Access Article
15 - Studying the effect of medicinal supplements prepared from grains on changes in the concentration of some hormones in laboratory rats with thyroid gland problems.
Hojjat Eghbal Mehdia Ahmadi SabeghIntroduction & Objective:The thyroid gland is one of the most important glands in the body that regulates the body's energy metabolism. This gland has a butterfly-like shape and is located in front of the trachea. Due to the increasing prevalence of thyroid diseases MoreIntroduction & Objective:The thyroid gland is one of the most important glands in the body that regulates the body's energy metabolism. This gland has a butterfly-like shape and is located in front of the trachea. Due to the increasing prevalence of thyroid diseases and the lack of appropriate treatment for this disease, the present study aimed to investigate the effect of food powder (Made from grains) on changes in the concentration of T3, T4, TSH hormones in male rats. Lead acetate was performed. Materials.and Methods:For this study, 30 Wistar rats were used. To induce the disease, lead acetate was used in combination with diet in mice and mice in treatment groups with concentrations of 125, 250 and 500 mg. They received food powder (Made from grains) per kilogram of body weight.Results:According to the results of T3, T4, TSH tests in the blood of the studied mice, it can be concluded that food powder (Made from grains) causes a relative return of T3, T4, TSH levels to normal. In the study of the interaction of the concentrations used in food powder (Made from grains), it was found that the concentration of 500 ml / kg has the most effective therapeutic effect and the concentration of 125 ml / kg has the least effect against hypothyroidism. Conclusion:According to the results of this study, it can be stated that food powder (Made from grains) is a suitable therapeutic effect for the treatment of thyroid parameters abnormalities. Manuscript profile -
Open Access Article
16 - Effect of Key Performance Indicators on Technology Transfer in Industries of Heat and Refrigeration Exchangers
Hamed Rahmani Omid Asadollahi Kiamars FathiAcquisition and transfer of appropriate and modern technologies, enabling developing countries to add to your productivity and thus leads to rapid development of industrial countries. Key performance indicators that measure the dimensions that are important and vital ro MoreAcquisition and transfer of appropriate and modern technologies, enabling developing countries to add to your productivity and thus leads to rapid development of industrial countries. Key performance indicators that measure the dimensions that are important and vital role in the success of present and future, the emphasis and focus. The key performance indicators identified in the technology transfer in industrial heat exchangers and cooling, type or intensity of their relationship and effect of each of these indicators on each other is very important and a very important role in the success rate in this industry will be technology transfer. In this study, using interpretive structural modeling, between key performance indicators affecting technology transfer in Heat exchangers and cooling industry has been analyzed. And using the DEMATEL techniques effect of each of these indicators on each other and on technology transfer has been investigated in this industry. Manuscript profile -
Open Access Article
17 - Numerical Modeling of the Effect of Geocell Elements’ Dimensions on Behavior of Circular Footings
Soheil Ghareh -
Open Access Article
18 - Comparison of different methods for ectoparasite infestation detection in Laboratory bred animals and standardization of their health certificate
mohammad AbdigoudarziIn order to study external parasites of laboratory reared animals at Razi institute, different methods including brushing of animal's surface body, cellophane tape of body surface, peri-anal cellophane tape test (CTT) and skin scrapings and digestive method were applied MoreIn order to study external parasites of laboratory reared animals at Razi institute, different methods including brushing of animal's surface body, cellophane tape of body surface, peri-anal cellophane tape test (CTT) and skin scrapings and digestive method were applied and collected samples were studied. In addition, field collected rats were tested using brushing method. One mouse had been infested by some mites. Rabbits, rats, mice and guinea pigs had not been infested with external parasites. Field collected rats had been highly infested with mites from the family Laelapidae. The, brushing method was confirmed to be a useful method for mite detection. According to the methods used in this study and these recommended by SOP from international animal breeding centers the CTT method was proposed to be useful for preparing health certificate of laboratory animals at the department of laboratory animal breading at Razi institute. Manuscript profile -
Open Access Article
19 - Designing a virtual laboratory-based learning environment and its effect on motivation to progress in science courses
Narges Feizabadi zahra jamebozorg fatemeh jafarkhaniThe expansion of the use of virtual technologies in education has made education available to learners at any time and any place The purpose of this research was to investigate the effect of designing a learning environment based on a virtual laboratory on the progress MoreThe expansion of the use of virtual technologies in education has made education available to learners at any time and any place The purpose of this research was to investigate the effect of designing a learning environment based on a virtual laboratory on the progress motivation of fifth grade elementary school students in science. The current research is practical and semi-experimental. For this purpose, a pre-test-post-test plan with a control group was used. The socio-statistics included all fifth grade female students of Karaj primary school. 40 people from the mentioned society were selected through purposeful sampling and randomly assigned to two control and experimental groups. The instrument used included the achievement motivation questionnaire with confirmed validity and reliability. At first, both groups completed the progress motivation questionnaire as a pre-test. Then, for the experiment group, the activities and experiments of the science book were designed in virtual form. At the end, the progress motivation questionnaire was given to the students of both groups as a post-test. The collected data were analyzed using the statistical test of univariate covariance with the help of spss version 18 software. The result of the research showed that there is a difference between the progress motivation of the two control and experimental groups in the post-test, and this difference is significant (a=0.05: p-value=0.001); This means that the design of the learning environment based on the virtual laboratory designed on the basis of Bayabi's design model has improved the motivation of students to progress in the science course. Therefore, it is recommended to the teachers and training providers to design and use a virtual laboratory based on the Bayabi design model to improve the motivation of students to progress in science lessons. Manuscript profile -
Open Access Article
20 - Using DEMATEL Method to Develop Conceptual Model for Evaluating Green Suppliers
Reza Ehtesham Rasi -
Open Access Article
21 - Feasibility Study of Laboratory Abortion in Criminal Law of Iran
Jamal BeigiIn vitro fertilization is one of the emerging issues in medical science, which is called laboratory embryo. In terms of the commonality of the in vitro embryo with the normal embryo, in addition to the obvious difference between the two, there are several legal question MoreIn vitro fertilization is one of the emerging issues in medical science, which is called laboratory embryo. In terms of the commonality of the in vitro embryo with the normal embryo, in addition to the obvious difference between the two, there are several legal questions about the rights and rulings of the in vitro embryo, including the rule of abortion in vitro fertilization. Until after the soul is breathed into it; That the life of a laboratory fetus, like the life of a natural fetus, has criminal protection and that abortion is a crime and requires the conviction of the perpetrator, the same punishment as a natural abortion; Therefore, the present article, with the aim of explaining the legal challenges and legal vacuum of criminalizing laboratory abortion in Iranian criminal law, by examining the reasons for the existing views, examines laboratory embryos with natural embryos in terms of criminal protection of the right to life and The possibility of criminalizing laboratory abortion is achieved. Manuscript profile -
Open Access Article
22 - A Study on the Flexural-Shear Behavior of Concrete Beams and Comparison of the Experimental Test Results with the Prediction of Different Codes
yousof Abbasi Parvin Taleb Moradi Shaghaghi Masoud pourbaba saeed mirrezaei yousof zandi In this research, a laboratory study was performed on the shear and flexural behavior of single-reinforced concrete (RC)­ beams without stirrups. For this purpose, four single-reinforced concrete beams with the dimensions of 250 by 300 mm and 1650 mm length an More In this research, a laboratory study was performed on the shear and flexural behavior of single-reinforced concrete (RC)­ beams without stirrups. For this purpose, four single-reinforced concrete beams with the dimensions of 250 by 300 mm and 1650 mm length and in four longitudinal reinforcement steel bars’ percentages of 0.36, 0.64, 1.05 and 1.45 of conventional rebars (S400) and concrete with compressive strength in the range of 35 Mpa were designed and all specimens were tested under four-point bending test. The test results presented that increasing of the reinforcement ratio of tensile rebars was efficient in increasing of the shear capacity of beams. Then, the shear and flexural strength obtained from the test were compared with the final shear and flexural strength predicted using AS3600, ACI, JSCE, EN, CSA, NZA , Iran codes and the proposed relationship by Al-Taan, and Al-Feel. The studies indicated the accuracy of the relationships proposed by Al-Taan and Al-Feel with an average of 1.26 times less than the experimental results, and the large difference between the values proposed by the Iranian Concrete Code and Japan (JSCE) Code with an average of 2.29 and 2.35 times, respectively less than the shear strength obtained from the test results, compared to other regulations in this research. In other words, they take a greater margin of confidence into account Manuscript profile -
Open Access Article
23 - Evaluation of suitable geometric characteristics of recreant steel core in non buckling CBF bracing
Alireza faroughi morteza yarmohammadtouskiThe performance of a BRBs is highly dependent on the geometric characteristics of sections. Steel core components play highly role in the absorption of energy and the other members only prevent buckling, Therefore the proper performance of BRBs are dependent on suitable MoreThe performance of a BRBs is highly dependent on the geometric characteristics of sections. Steel core components play highly role in the absorption of energy and the other members only prevent buckling, Therefore the proper performance of BRBs are dependent on suitable steel core sections. There is an example of a recreant steel core of 40mm*20mm with total length of 2660mm selected in accordance to the Zsarnóczay Laboratory and modeled in the finite element software. Then compared with laboratory and accuracy results in the Abacus software three other models of 40mm*30mm, 40mm*40mm, 60mm*20mm with overall length of 2660mm in accordance with the necessary invariant bracket factors taken from the Pedro Romero laboratory paper were introduced, modeled and verified with the same physical specification. Then the cross section of 40mm*30mm was selected as the appropriate cross section for the recreant steel core in terms of software output based on parameters such as hysteresis curve comparison, sample hardness comparisons, proper ratios of compressive force to tensile strength. Then for accuracy of suitable cross section for different model, by retaining the proportions of the bracing components, recreant core 40mm*40mm with a total length of 3600mm were modeled Manuscript profile -
Open Access Article
24 - Investigation of Scouring Pattern Around the Axillary Screw Bridge in the Form of Pollen and Triangular Fish with their Observation and Comparison
mahmmod valipour morghmaleki mohsen solimani babarsadThere are currently several methods to prevent scouring the bridge base. These methods can be divided into two general categories. The first group is to increase the strength of the substrate materials against erosion, such as the use of a gobion, a rap ramp around the MoreThere are currently several methods to prevent scouring the bridge base. These methods can be divided into two general categories. The first group is to increase the strength of the substrate materials against erosion, such as the use of a gobion, a rap ramp around the bridges, and the second one, by changing the pattern of the flow around the bases, reduces the strength of the erosion factors, which are the collars, And bridge bridges are examples of these methods. In this research, the experimental study of the impact of the bridge nose bridge on the scour depth reduction was considered. For this purpose, 22 experiments were carried out in the vicinity of the pollen and triangular nests at four angles (0.70,75,80.90) 215/0, 232/0, 261/0). According to the results of the experiment, the reduction of scour depth in the triangular nose support for different floats in all angles had the best performance in reducing the scour depth during the experiments. Manuscript profile -
Open Access Article
25 - Laboratory study of reducing the scour depth downstream of Calvert with a square cross section adjacent to the floor
Mustafa MansuriProtection of the downstream of culvert outlets against scour process, as a water conveyance structure, is a highly significant issue in design of culverts. In this study, the effect of bed litter length on downstream scour depth is investigated. For this purpose, exper MoreProtection of the downstream of culvert outlets against scour process, as a water conveyance structure, is a highly significant issue in design of culverts. In this study, the effect of bed litter length on downstream scour depth is investigated. For this purpose, experiments were carried out on the laminate with different lengths. According to the results, the particle landing at 22%, 33% and 66%, respectively, and the landing at particle landing of 2.5%, respectively. 15%, 20%, and 40% decreased particle depth by 20%, 25%, and 31%, respectively, indicating that bedding has a positive effect on decreasing downstream scour depth. The scour for the flooring considering the length of the layer showed that the scour depth decreases with the increase of the layer length due to the constant landing number. Manuscript profile -
Open Access Article
26 - Laboratory Study of Reducing The Scour Depth Downstream of CUlvert with a Square Cross Section Adjacent toThe Floor (Square-Shape Culvert)
Mostafa MansuriProtection of the downstream of culvert outlets against scour process, as a water conveyance structure, is a highly significant issue in design of culverts. In this study, the effect of bed litter length on downstream scour depth is investigated. For this purpose, exper MoreProtection of the downstream of culvert outlets against scour process, as a water conveyance structure, is a highly significant issue in design of culverts. In this study, the effect of bed litter length on downstream scour depth is investigated. For this purpose, experiments were carried out on the laminate with different lengths. According to the results, the particle landing at 22%, 33% and 66%, respectively, and the landing at particle landing of 2.5%, respectively. 15%, 20%, and 40% decreased particle depth by 20%, 25%, and 31%, respectively, indicating that bedding has a positive effect on decreasing downstream scour depth. The scour for the flooring considering the length of the layer showed that the scour depth decreases with the increase of the layer length due to the constant landing number. Manuscript profile -
Open Access Article
27 - Effect of using nano-silicates in concrete strength properties (A laboratory study)
Hassan Heydari Mofrad -
Open Access Article
28 - Estimating of uniaxial compressive strength by using point load index for travertine rock of Mahallat
Saied Dehghan Ghasem Sattari -
Open Access Article
29 - Study of ability Fusarium oxysporum fungi in extracellular biosynthesis of silver nanoparticle in vitro
Golshid Sajjadi Abolfath Shojaiee Mohammad Reza Fazeli Javid Amini Hossain JamalifarBackground and Objective: Development of methods without using plotant and poisonous material and minimum wastes to produce under control nano structures is of nanotechnologist concerns. In this way biologists, by previous knowledge, nano-scale minerals controlled makin MoreBackground and Objective: Development of methods without using plotant and poisonous material and minimum wastes to produce under control nano structures is of nanotechnologist concerns. In this way biologists, by previous knowledge, nano-scale minerals controlled making by microorganism, seeking organism capable making non-organic nanoparticles. The aim of this study is extracellular production of silver nanoparticles with maximum dimention of 20 nm by Fusarium oxysporum fungi. Materials and methods: After studies to optimize growth condition, Fusarium oxysporum biomass in a medium containing yeast and malt extract is reproduced. After silver nanoparticles production in silver nitrate solution, this nanoparticles are studies by UV-Visible Spectrophotometry and Transmission Electron Microscopy (TEM) methods. Results: Studies showed that when Fusarium oxysporum biomass put in 10-3 M of silver ions, can produce silver nanoparticles in the form of extracellular. Conclusion: Because of physical and chemical particular properties of silver nanoparticles with maximum diameter of 20 nm of Fusarium oxysporum fungi, its industrial production and applied evaluation is offered. Manuscript profile -
Open Access Article
30 - Comparing Mineral and Chemical Compounds, in Vitro Gas Production and Fermentation Parameters of some Range Species in Torbat-e Jam, Iran
Mohsen Kazemi -
Open Access Article
31 - Provide a dynamic model of financing small and medium enterprises (SMEs) with DANP approach
Bizhan Nosrati Barandagh Abbas toloie Ehsan Sadeh zeinolabedin aminisabeghThe purpose of present article is to design a dynamic model (DM) of financing SMEs according to Decision Making Trial And Evaluation Laboratory (DEMATEL) based on Analytical Network Process (ANP) (DANP) approach. The innovation of this article is to take hybrid of DANP MoreThe purpose of present article is to design a dynamic model (DM) of financing SMEs according to Decision Making Trial And Evaluation Laboratory (DEMATEL) based on Analytical Network Process (ANP) (DANP) approach. The innovation of this article is to take hybrid of DANP and DM in financing SMEs approach. This article has paid using different scenarios in financing SMEs and model simulation. The dynamic model is formulated therefore, based on previous literature and the fuzzy screening method, extracting effective factors on financing SMEs and causal link identified. Then it was included in the model using the DANP the relationships between them and the amount of impact coefficients are determined. Finally identify new financing methods over a 10 month period in order to test the accuracy of the model and to determine the behavior of the state and rate variables, we collected data from 24 SMEs. The behavior of research variables analyzing by evaluated in the framework of the model as well as sensitivity analysis the validity of the DM is designed. The results showed that SMEs use the designed model and the scenarios can be used to finance their business optimally. Manuscript profile -
Open Access Article
32 - The Neuroprotective Effect of Xanthone and 6-Hydroxyflavone in the Model of Parkinson's Disease Induced by 6-Hydroxydopamine in Laboratory Mice: Behavioral Evaluations
Mahshid Attari Maryam Khosravi Ramin Hajikhani Maryam Bananaj Jalal SolatiOxidative stress and neuroinflammation play a role in Parkinson's disease. Antioxidants and anti-inflammatories such as polyphenol compounds and flavonoids inhibit neuronal death. The aim of the present study is the effect of xanthone and 6-hydroxyflavone in Parkinson's MoreOxidative stress and neuroinflammation play a role in Parkinson's disease. Antioxidants and anti-inflammatories such as polyphenol compounds and flavonoids inhibit neuronal death. The aim of the present study is the effect of xanthone and 6-hydroxyflavone in Parkinson's disease in laboratory mice. Animals are cannulated by stereotaxic surgery and unilateral injection of 6-hydroxy-dopamine is performed in the dense area of the substantia nigra (SNc) of the brain. Xanthone and 6-hydroxyflavone were injected intraperitoneally. Three weeks after surgery, movement evaluations and pseudo-anxiety and pseudo-depression behaviors were performed. Counting of all the neurons in the dense area of the substantia nigra was done. Injection of 6-hydroxydopamine increased the number of apomorphine rotations. Catalysis time increased. Neurons in the substantia nigra decreased. 6-Hydroxyflavone (50 and 100 mg/kg) and xanthone (100 and 200 mg/kg) reduced vertigo and catalepsy. In the elevated plus shape maze test, 6-hydroxyflavone in doses of 25 and 50 mg/kg and xanthone in doses of 50 and 100 mg/kg increased motor activity. In the forced swimming test, xanthone in doses of 50, 100 and 200 mg/kg reduced immobility in parkinsonian rats. The number of substantia nigra neurons increased with the treatment of 6-hydroxyflavone in doses of 50 and 100 mg/kg and 200 mg/kg xanthone. Xanthone and 6-hydroxyflavone improved movement disorder and catalepsy and increased the number of nerve cells in the substantia nigra. Xanthon was able to reduce depression. Probably, part of these central protective effects are mediated by the antioxidant and anti-inflammatory effects of xanthone and 6-hydroxyflavone, which prevent cell death by reducing free radicals and inflammatory cytokines, and as a result, they improve cognitive and movement disorders. Manuscript profile -
Open Access Article
33 - ارائه آزمون آزمایشگاهی جدید برای تعیین انرژی و قابلیت خردایش خوراک آسیای مجتمع مس سرچشمه
محمد رزانی ابوالفضل معصومی مسعود رضایی زاده محمد نوع پرستاز جمله عواملی که معمولا در آسیاها اندازهگیری آن دشوار میباشد، تعیین قابلیت خردایش خوراک و توزیع ابعاد به صورت واقعی و در زمان کوتاه است. در صورت دستیابی به راه حلی سریع و مناسب جهت تعیین این پارامترها میتوان رابطهای مناسب بین انرژی و سختی و دانهبندی پیدا نمود. سخت Moreاز جمله عواملی که معمولا در آسیاها اندازهگیری آن دشوار میباشد، تعیین قابلیت خردایش خوراک و توزیع ابعاد به صورت واقعی و در زمان کوتاه است. در صورت دستیابی به راه حلی سریع و مناسب جهت تعیین این پارامترها میتوان رابطهای مناسب بین انرژی و سختی و دانهبندی پیدا نمود. سختی خوراک یکی از عوامل بسیار موثر در خردایش مواد معدنی در فرآیند فرآوری مواد معدنی میباشد و این پارامتر به عواملی نظیر خواص مکانیکی مواد معدنی و شرایط برخورد وابسته است. استفاده بهینه از انرژی جهت خردایش مواد معدنی در آسیاها از اهداف اصلی این تحقیق میباشد. در این تحقیق سعی بر این است که مدلی تجربی مبنی بر شرایط برخورد واقعی در آسیا ارائه گردد. امروزه از آزمون آسیای نیمه خودشکن آزمایشگاهی جهت بررسی شرایط مدار خردایش در زمان تغییر توزیع دانه بندی خوراک، اندازه گلوله و سرعت آسیا و تخمین انرژی لازم برای خردایش کامل در آسیای خودشکن و نیمه خودشکن، استفاده میشود. در این تحقیق یک آزمون آسیای نیمه خودشکن جدید جهت اندازهگیری انرژی و قابلیت خردایش خوراک، پیشنهاد شده و اثر پارامترهای مختلف بر دانه بندی و سختی خوراک بررسی شده است. نتایج نشان میدهد تفاوت عدد سختی (A×b) بدست آمده از روش پیشنهادی جدید و آزمون بار افتان استاندارد 9/1 درصد است. همچنین با استفاده از روش پیشنهادی جدید میتوان انرژی لازم جهت خردایش و دانهبندی محصول را با دقت بالایی تخمین زد. Manuscript profile -
Open Access Article
34 - Thermodynamic analysis of two-shaft radial gas turbine data using artificial neural network method
Hamidreza Mektaazadeh بابک مهماندوست Mojtaba Haratian -
Open Access Article
35 - BANKS' PERFORMANCE EVALUATION MODEL BASED ON THE BALANCED SCORE CARD APPROACH, FUZZY DEMATEL AND ANALYTIC NETWORK PROCESS
Meisam Jafari-Eskandari NASIM ROUDABR Mohammad Hassan Kamfiroozi -
Open Access Article
36 - Comparison of the effect of different concentrations of hydroalcoholic extracts of Sahendian savory (Satureja sahandica Bornm.) and oregano (Origanum vulgare L.) with metronidazole on giardia (Giardia lamblia) cysts in vitro
Jabber DavoodiGiardiasis is an intestinal infection caused by the flagellate protozoan Giardia lamblia (synonyms: Giardia intestinalis and Giardia duodenalis). The characteristic of this disease are including worldwide distribution, high prevalence, and significant morbidity. Differe MoreGiardiasis is an intestinal infection caused by the flagellate protozoan Giardia lamblia (synonyms: Giardia intestinalis and Giardia duodenalis). The characteristic of this disease are including worldwide distribution, high prevalence, and significant morbidity. Different studies relieved that the thymol content available in some medicinal plants has anti-giardiasis effect. Hence, based on adequate thymol in contents of both, Satureja sahandica and Origanum vulgare extracts, the aim of present research was comparison the effect of Satureja sahandica and Origanum vulgare Extracts with metronidazole on Giardia lamblia in vitro condition. In this experimental-laboratory study, 500 µl of each of 10, 100 and 200 mg/L concentrations of extracts and 125 mg/L of metronidazole was added to 500 µl of purified giardia cysts, respectively. In control groups normal saline used whereas these agents. The giardicidal activity of the extracts was measured 30, 60 and 120 min (s) after exposure through 0.1% eosin dye staining and microscopic enumeration method. Minimum, maximum and means lethal concentrations of treatments were calculated after three times in each group. Results relieved that anti-giardicidal effects of both extracts significantly increased due to rising the concentration and time. Based on present study findings and in accordance with others, it seems thymol content of SS and OV extracts were responsible for their anti-giardial activity. Meanwhile, further studies needed for clarify their exact mechanism of actions Manuscript profile
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