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Showing 326 results for Rabi


Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract

Some muslim scholars and theologians believe in monotheistic creation, but others believe that Allah The Almighty has inspired monotheism to man after his creation. Aiming to investigate the collection of Mulla Sadra's works on monotheism (tawhid) and its correspondent beliefs, the Topic-based Discourse Analysis Model (See Mazinani, Alizadeh, and Azad, 1397) was applied. The results were categorised in three sections: claims, warrants/topos, and certainty in assertion. Sadra claims that the belief in the monotheism is Man's very nature and a necessity for his existence. He has made most of his claims by refering to Quranic verses and hadiths by their explicit quotation, implication and interpretation. In the maze of this important matter, this philosopher occasionally takes an implicit rational position by denoting the topos such as "benefit", "harm", "fundamental need", "necessity", "fulfillment of treaties", "trustworthiness" "Pressure", and "attribution", which these can also be infered from the quoted verses and hadiths. Of course, such kind of argumentation by Mulla Sadra makes it difficult for non-Muslims and rationalists to accept his claims and theory. In all the data considered, however, an influential decisive declarative tone prevails in the claims so that no words or signs of doubt or any item suggesting Mitigation Strategy were observed. In the same vein, the Intensification Sterategy application was nearly observed in 20% of the data, and the processes of negation and passivization with their specific function were seen in 10% of the data.

Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract

Choosing the active or passive constructions for the native speakers of a language, as the name suggests, is simply a "choice" and "selection" and the speaker uses one of these two voices to express the meaning according to his situation and recognition. This conscious choice between the two structures mentioned is not a problem as long as the speaker speaks his native language. The problem begins when a person wants to speak or write in another language and for his “choice”, among the data and training that he has received in a foreign language up to this point, he looks for a reason to choose the best option among two voices and not allow errors. This article tries to answer the question: how can students for whom Russian is not their native language consciously choose a passive construction? In other words, this article is not intended to compare the Voice in Persian and Russian or to observe students’ “mistakes” in encountering this category. The article is aimed at developing a questionnaire containing the “correct” options from among the types of quasi-passive, passive and active and implementing it for 86 students of the Russian language in Iran and Russia (for whom Russian is considered a non-native language) and, based on the analysis of their answers, to reflect them "trend" in the use of passive structure. From this point of view, we try to help Russian teachers in teaching the use of the passive voice.

Volume 1, Issue 2 (6-2012)
Abstract

Powdery mildew is one of the most important disease concerns of tomato production in different regions of the world, which is caused by different species of Erysiphales. The most important causal agents of which are Leveillula taurica and Oidium neolycopersici. In the present study tomato farms in Qazvin province were surveyed and tomato leaves with powdery mildew symptoms were collected. After morphological studies in laboratory and using reliable resources, the causal agent of tomato powdery mildew was identified as Leveillula taurica. The host range was determined by inoculation of Leveillula taurica from tomato on nine species of plants belonging to four different plant families. All cultivars of tomato, eggplant, pepper and cucumber used in this study, showed disease symptoms on their leaf surfaces. Other plant species including potato, alfalfa, sunflower, clover and sainfoin did not get infected by the pathogen. The nucleotide divergence for the rDNA internal transcribed spacers (ITS) region between tomato mildew and 21 other Leveillula taurica isolates ranged from 0.00 to 0.031 %. The sequence of ITS region of Leveillula taurica from tomato was identical to that of eight isolates from different plant species.  

Volume 1, Issue 2 (7-2014)
Abstract

Background: In recent years we have successfully adopted an in vitro hepatogenic differentiation of mesenchymal stem cells (MSCs). In this protocol the biologically active hepatocyte-like cells were differentiated from the stem cells isolated from either bone marrow or umbilical cord blood (UCB) samples. The aim of the present study was to compare the efficiency of the hepatogenic differentiation of MSCs isolated from UCB and MSCs. Methods: Differentiation process of MSCs was carried out in a selective medium supporting hepatogenic differentiation for 3 weeks. Then using specific markers we have examined the hepatocyte formation following hepatogenic differentiation of the stem cells. Hepatogenic markers namely albumin, α-fetoprotein (AFP) and cytochrome P450 3A4 (CYP3A4) were monitored at different time intervals during differentiation. Results: Transdifferentiation of the UCB and bone marrow MSCs was also characterized by measuring albumin, AFP and CYP3A4 at mRNA levels using reverse transcription polymerase chain reaction (RT-PCR). AFP was expressed in the undifferentiated UCB-MSCs and increased on day 21 of differentiation. However, AFP was not detected in the undifferentiated bone marrow MSCs. But, AFP expression started during the first week of differentiation. Albumin expression was detected in hepatocytes from UCB as well as bone marrow. The expression of albumin and its secretion from hepatocyte prepared from bone marrow appeared earlier compared to the cells derived from UCB. Metabolic function of the hepatocytes evaluated by secretion of albumin in the culture media was also similar in the cells isolated from both the sources. Conclusions: The differentiation potential of MSCs derived from human UCB and bone marrow under in vitro condition is comparable. However, it appears that there is time-dependent difference in the onset of expression of liver specific markers particularly albumin synthesis in hepatocytes derived from different stem cells.

Volume 1, Issue 2 (12-2015)
Abstract

The genus Euxoa Hübner, [1821] is regarded as the most highly evolved among the genera of the subfamily Noctuinae and contains by far the largest number of species of the subfamily in Europe and in the Palaearctic region. Fifty-four species of this genus has been already reported from Iran. In this paper a list of 17 already recorded species and subspecies of Euxoa from the north-east of Iran is given and discussed. Furthermore, E. acuminifera (Eversmann, 1854) is newly reported for the fauna of Iran. Figures of its adult male and female and their genitalia are provided together with bionomics and distribution of the species.

Volume 1, Issue 2 (6-2016)
Abstract

Background: The aim of this study was to evaluate the level of disability and pain intensity among two groups of governmental employees and sellers who suffering from chronic low back pain.
Material and Methods: This descriptive–analytic study was performed from Dec 2015 to Mar 2016among employed staff members of education ministry (N = 50) and 40 sellers with chronic low back pain who were selected through non-random sampling method. The research tool was Oswetry inventory to inspect the pain intensity and level of disability of the participants. Statistical descriptive/analytic method was used to analyze data through SPSS V16.
Results: Totally, 90 participants included 50 employees with an average age of 45.14 ± .85 years and 40 sellers with an average age of 45.42 ± 0.98 years took part in this study. The variables as age, weight, height were the same in the two groups (P > 0.05). There were significant difference between the two groups in terms of BMI2.01 (3.42-.59), pain: 0.55 (0.18-0.92), lifting disability: 0.77 (0.28 to 1.25), walking 1.03 (0.56 to 1.49), sleeping-0.26 (-0.51 -0.002), sexuality 2.07 (1.32 to 2.82), social life. 0.43 (-0.82 -. 03), mean total score of functional disability in performing activities 4.35 (1.93 to 6.77) which were better in the employed group rather than the other group.
Conclusion: This study showed the functional disability and related effective factors were different between employees and sellers. Therefore, categorizing individuals who suffering from back pain into homogeneous groups and investigating the effective factors of disability in each group of people are recommended.

Volume 1, Issue 2 (summer 2021)
Abstract

Abstract
Today, in the era of the domination of the virtual world over the real world, with the expansion of the Internet and social networks, social communication and subsequent elements of individual identity has undergone extensive quantitative and qualitative changes. Women, as the majority of social media users, are more exposed to threats and psychological harm than ever due to their physical and psychological characteristics. One of the types of harms that can be explained in the context of the knowledge of social psychology is "self-objectification".
     The present study is applied in terms of purpose, and descriptive-survey in terms of implementation. The statistical population of the study is 271 high school girls in Kashan. By distributing a standard questionnaire with closed-ended questions, the necessary information was collected. In the process of objectification, women under the influence of media advertisements, draw ideals for themselves and in the same direction, they constantly evaluate and review themselves, and if they see their appearance closer to current patterns at the media, they gain self-confidence; otherwise, they become involved in physical shame. As a result, their self-confidence appears to be conditioned by the fact that it puts their mental health at risk, and this type of risky behavior based on criminological theories such as the lifestyle theory of Gottfredson and Hindelang is likely Increases victimization; Because the more recreational activities and leisure a person has, and the more she interacts with criminals or in criminal or dangerous environments, the more likely she is to become a victim.
 
Key words: Women Victimization, Social Networks, Self- objectification, Social Prevention

Volume 1, Issue 3 (Summer 2021)
Abstract

Throughout the texts of contemporary logicians, it has been explicitly or implicitly stated that the division of propositions into actuality, mental and factual, has no effect on logical syllogisms. In the following text, first, by analyzing the opinions of contemporaries on the division of propositions into actuality, mental and factual, the differences and similarities of the opinions in this regard have been identified. Then we examine the position of the conditional's quantifier and its effect on the conditions of conditional-categorical syllogisms (conjunctive or exceptive) in the opinions of contemporary logicians. In the final step and based on the conditions of conditional-categorical syllogisms (conjunctive or exceptive), we have shown that some of the moods that most contemporaries have declared to be valid have counter-examples, and only with the factual of the categorical premises in all situations and for all samples will result.


Volume 1, Issue 3 (Summer 2023)
Abstract


 More than two-thirds of the world’s population is likely to reside in urban areas by 2050. Rapid urbanization contributes to many contemporary challenges that confront cities. Sustainable urban development (SUD) is a widespread area of investigation that can be considered from various attitudes, such as environment, economy, society, technology, culture, and so on. This paper aimed to perform a bibliometric analysis of “sustainable urban development” research during 2002-2021, considering source types, subject areas, document types, affiliations, journals, countries, authors, and keywords. Also, Social Network Anal­ysis was applied to recognize mapping trends, status, and hot spots in SUD research and to discover co-authorship relations and international collaborations among countries worldwide. The results of this study showed that the number of SUD-relat­ed publications has remarkably increased by more than sixteen times over the study period. Social sciences” (24.6%), “envi­ronmental science” (21.2%), and “engineering” (13.4%) were the three major subject areas. China, with 539 publications (20.3%), was the most productive country in terms of the num­ber of publications. The most independent rate of the publica­tions belonged to India (76.5%), while Hong Kong ranked 1st in cooperator publications (61.6%). The “Sustainability” pub­lished the most related articles, followed by “Journal of Cleaner Production” and “Sustainable Cities And Society.” Among the top ten productive institutes and organizations, five affiliations were from China. “Deep learning,” “circular economy,” “big data,” “air pollution,” “spatial analysis,” “urban resilience,” “urban heat island,” “system dynamics,” and “cultural heritage” were the most increasing keywords in recent years, based on the author keywords analysis.

Volume 1, Issue 4 (10-2016)
Abstract

Background: Sport and exercise therapy can be used for low back pain's prevention. This research was aimed to evaluate the level of functional disability, pain intensity difference between the two groups of patients with chronic low back pain.
Methods: this study was a cross-sectional-applied research conducted from December 2015 to March 2016 on the employed (N = 50) and nonemployee people (N = 40) suffering from chronic low back. Physical activity level and demographic properties in all subjects were measured by Baecke physical activity questionnaire. The data were analyzed using SPSS software version 16.
Results: Totally, two groups employees (N = 50) with an average age of 45.14 ± 0.85 years old and the non-employee (N = 40) people with an average age of 45.42 ± 0.98 years old took part in the study. No significant differences was observed between both groups on such variables as age, weight, height (P > .05). Significant difference was observed between the mean body mass indexes between two groups so that among the employed group was more than the non-employed (p < .05). Significant difference was observed about the physical activity (p < .05) and exercise (p < .05) between two mentioned groups in free time.
Conclusion: This study revealed the different groups of people who have different jobs may be different due to physical activity.

Volume 1, Issue 4 (Fall 2023)
Abstract

Detergents are a part of human life and are consumed for different purposes, particularly hygiene. In recent years, the detergent industry has experienced significant changes as a result of environmental concerns, the availability, and cost of raw resources and energy, consumer preferences, demographic and sociological trends, as well as global economic and political factors. Several review papers have been published on detergents, but no bibliometric research has been conducted in this field. This study aims to assess the trend of detergent research and show the related hotspots by conducting a bibliometric analysis based on 37650 published articles from Scopus from 2000 to 2022. Numerous significant aspects of these articles, such as subject categories, journals, authors, countries, and keywords, were examined systematically. According to the findings, the number of detergent-related papers has increased significantly over the past two decades. The United States was the leading country in terms of both quality and quantity, followed by China and Brazil. In addition, Detmann, E. from Sweden was the most productive author. Keyword analysis suggests that current research has focused on the development of effective cleaning products that are safe for humans and the environment.
 

Volume 2, Issue 1 (4-2002)
Abstract

Chromate conversion coating is applied on aluminum 6061. The optimum conditions for chromate bath composition and immersion time are also obtained for standard requirements provision such as corrosion resistance in salt spray test, electrical resistance and coating quality. The applied coatings are electrochemically tested in sea and distilled water. According to Tafel and cyclic polarization curves, the protection mechanism are evaluated in said environments. This evaluation has shown the formation of passive film layer, contains chromate and alumina on the base. The proper behavior of corrosion and electrical conductivity is probably due to this mechanism.

Volume 2, Issue 1 (3-2014)
Abstract

Aim: Evidence indicates that demographic factors such as age, gender, and mother's literacy are important predictors of fruit and vegetable consumption among adolescents. So, this study was conducted in order to survey the relation between socio-demographic factors and fruit and vegetable consumption among Tehranian adolescents in 2013. Methods: This cross-sectional study (descriptive-analytic) was carried out for surveying Tehranian adolescents, socio-demographic factors and fruit and vegetable consumption. The total of 500 adolescents (11-14 years old) was included in the study using multistage random sampling method. Being at the age of 11-14 years, giving informed consent, and voluntary participation were criteria for students' selection. Data were gathered using questionnaire encompass socio-demographic characteristics (11 items) and Frequent Fruit and Vegetable Questionnaire (FFQ). Data were analyzed using statistical software SPSS 18 (descriptive statistics, and tests of independent t and one way ANOVA). Findings: There was no relationship between age, gender, family size, parent’s job, and fruit and vegetable consumption. Based on one way ANOVA test, there was a significant relation between vegetable consumption and mother’s and father’s literacy, as well as between home size and fruit and vegetable consumption. Conclusion: The finding that economic factors and parent’s education level have a strong association with the adolescents’ intake of fruits and vegetables in this sample concurs with other research findings regarding the importance of family environment to promote healthy eating behaviors among adolescents.

Volume 2, Issue 1 (3-2016)
Abstract

  Background: Today a large number of bacterial amylases are available commercially in industry. The goal of the present study was purification and biochemical characterization of an extracellular thermostable alkaline α-amylase from the novel moderately halophilic, Bacillus persicus from the Aran-Bidgol, Iran.   Methods : Purification of enzyme, was carried out by acetone precipitation, ultrafiltration and Q-Sepharose cation exchange chromatography. Results : The purified native enzyme showed a molecular mass of 53 kDa composed of a monomer by SDS–PAGE. The optimum pH, temperature and NaCl concentration were 10, 45 C and 0.85 M respectively. It retained 50% of activity at 1.25 M NaCl and about 73% of activity at highly alkaline pH of 10.5, therefore it was a moderately halophilic and also can activate by divalent metal ions especially Ca2+ and Mg2+. The apparent values of Km and Vmax were obtained 1.053 mg/ml and 356μ/min respectively. Conclusion : In the present study we report the purification and characterization of a moderately halophilic α-amylase from a newly isolated Bacillus persicus. The purified enzyme shows interesting properties useful for industrial and biotechnological applications. The molecular cloning and structural studies of this α-amylase are in progress in our laboratory.

Volume 2, Issue 2 (Summer 2018)
Abstract

In this study, three different size (100-300-500 µm) of the rubber powder (waste tire) were used in the formulation of epoxy- phenolic adhesive. Rubber powder was modified with grafting method by acrylamide monomer. In order to prevent any loss in properties such as modulus and strength of the adhesive, which is due to the addition of rubber powder to the adhesive, the micro particles of silica were used in formulation of epoxy- phenolic adhesive.  The experiment was designed by Taguchi method, and in the experiment, the effect of the composition of rubber powder, size of rubber powder, composition of silica filler and phenolic resin on mechanical and thermal properties of epoxy adhesives were investigated. To study the mechanical properties of adhesives and adhesion properties, dumbbell-shaped specimens and single edge lap bonds that have been made of metal (stainless steel) to composite (epoxy resin / carbon fiber) were prepared and subjected to tensile test. Thermal stability and interfacial interaction between epoxy and filler in adhesive formulation were explored by thermogravimetric analysis and Fourier transform infrared spectroscopy analyses, respectively.  Tensile test results showed that for lap- joint bonding with the addition of each factor in its optimal level into epoxy adhesive, strength, modulus and toughness increase by 7.5%, 27.56% and 114% respectively in comparison with  the samples bonded with the neat  epoxy adhesive. A significant increase was obtained in thermal stability for formulated adhesive samples compared with neat epoxy adhesive.
 
 

Volume 2, Issue 3 (Autumn 2019)
Abstract

Molecular imprinting is a novel technique for preparing specific absorbents with selective sites for binding to the target molecule. Molecularly imprinted polymers, because of their high selectivity and stability, low cost and easy methods of preparation, have been widely employed in separation procedures. In this study, we evaluated the synthesized electrospun imprinted membrane (MIM) as a specific sorbent for herbicide mecoprop (MCPP). The films were prepared using methacrylic acid (MAA) as functional monomer and polyethylene terephthalate (PET) as a main part of polymeric solution and in the presence of dichloromethane (DCM) and Trifluoroacetic acid (TFA) as the solvents. The template was extracted through washing, results in the free specific memory sites within the films. Then, the synthesized electrospun imprinted membrane (MIM) was evaluated as a specific sorbent for herbicide mecoprop (MCPP). The results showed that the solution with 20% w/v of PET was the optimal solution for electrospinning process and at all different MCPP/MAA molar ratios (1:2, 1:4. 1:6 and 1:8), MIM had higher removal ability for template molecule (p<0.05) compared to NIM. The template/monomer ratio of 1:4 had the best binding amount. We also investigated the capability of MIM to be used as sorbent for pesticide 2,4-D, that is, the analogue of the main template molecule and diazinon, that is, the pesticide with different structure to the template. In addition, we used synthesized MIM and NIM films to extract MCPP analyte from environmental aqueous samples (bottled water and groundwater) and the results indicated successful performance of MIM compared to NIN.



Volume 2, Issue 4 (winter 2021)
Abstract

Aims: This research deals with the delicacies and complexities of recreating the historical cemeteries of cities. In this regard, it tries to know the obvious, hidden dimensions, layers and components in the deep levels of perception by reviewing lived experiences.
Methods: This research is qualitative and has a phenomenological approach. In this way, in-depth semi-structured interviews were conducted in Kusenbach's innovative method and in five axes, and also supplementary questionnaires were distributed to record, receive and analyze the meanings of the lived experiences of the landscape visitors.
Findings: The lived experiences of historical landscape cemeteries were studied in five axes: "Reference, ideal image, activity, improvement and mental dimensions" and showed that historical cemeteries have multidimensional qualities and a great variety, multiplicity and complexity in the perceptual layers.
Conclusion: If the role of the cemetery is reduced to the necessary urban infrastructure and becomes only a place for burying the bodies, then the connection between the world of the living and the dead is cut off, and turning it into a landfill for urban waste outside the city. Because of having valuable structures and elements, originality and hidden values that show the interaction of culture and nature over time, and these values preserve the identity and collective memories and historical memory of society, the protection of the historical landscape is very sensitive. Therefore, it is impossible to re-read these features in the re-creation of the cemetery without analyzing the deep perceptual layers hidden in the soul of this place.

Volume 2, Issue 5 (Spring 2021)
Abstract

This study aimed to classify sport managers according to communication skills on cultural intelligence, managerial skills. A descriptive study was conducted through a survey. The study population consisted of Isfahan’s Sport Managers. In this research 600, sport managers as a Statistical society were considered. 207 as the statistical sample was selected from Statistical society. Measuring instruments consisted of demographic questions, Barton G. The reliability of communication skills, cultural intelligence questionnaire, and classifying sport managers questioner was. Statistical methods included analysis of both descriptive and inferential statistics using SPSS and LISREL, and structural equation modeling was performed to assess the relationships between variables. The results show that the communication skills and cultural intelligence and class of sport managers, there is a significant relationship, the output shows the application of structural equation model is appropriate. Hence the required proper planning to improve their communication skills and cultural intelligence organizations for sports managers in these organizations is effective. Because of the significant aims of the athletic directors, managers tend to imitate and ambassadors. Therefore, the authorities have the right people in the suitable management strategy because it seems intuitive managers and analysts can better brighter prospects for the exercise of the imagination.

Volume 3, Issue 1 (11-2012)
Abstract

Probiotics are live microbial feed supplements, which beneficially affect the host by improving its intestinal microbial balance[8].Recently, researches have shown that lactic Acid Bacteria(LAB), especially Bacillus (because of having endospore) remain stable at cooking temperature and retain their probiotic benefits in baked goods [3]. The purposeof this study,was using of Bacillus coagolans, as a resistant probiotic,for enrichment of  bread. First, these probiotic bacteria were determined by the tests of salt tolerance, heat resistance, bile tolerance, tolerance of acid and pepcin, resistance of antibiotics, and preventing the growth of pathogenic starins[18].Then a certain number cells of  BC were entered in bread dough,before& after  baking the number of live bacteria were calculated by colony count in 1g of dough and bread. The number of BC decreased from 108 to 106 units per gram, after baking. Also,the amount of starch decreasd and changed into simple sugers. The pH was estimated about 4.5-5 and TTA (Total Titritable Acidity) was between 6-8. Finally, the enrichment of bread was  evaluated  by experts and its quality and taste were compared with a control sample. The Results showed this bacterium survives in baked bread and makes good chemical changes on it.

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