Showing 249 results for Arab
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 (in press 2024)
Abstract
Deep reinforced concrete beams are very important structural elements that are used in concrete structures such as high-rise buildings, marine structures, silos, and etc. Because of the importance of these elements, they sometimes need to be strengthened. One common method of strengthening reinforced concrete structures is the use of carbon polymer sheets (CFRP). In recent decades, little research has been done to investigate the effect of various variables affecting the behavior of concrete deep beam, strengthened using polymers reinforced with single or multi-directional fibers. The valuable features of composite materials such as simple and fast installation and corrosion resistance have led to the increasing use of these materials. It is possible to strengthen the reinforced concrete deep beams by gluing FRP plates or strips in a full-cross-section, gluing in a U shape or mounting on the sides of the beam at different angles to the longitudinal axis. Laboratory and analytical results prove that the external installation method, EBR, can be used as an acceptable solution in strengthening the shear of reinforced concrete members. Other methods such as installation Near the Surface Method (NSM) or methods that prevent them from separating from the concrete surface by inhibiting Composite tape can be used as an EBR alternative method that delays separation. Despite extensive research on strengthening and strengthening conventional reinforced concrete beams with FRP sheets, little research has been done on deep concrete beams. As we know, many parameters affect the NSM and EBR method. The lack of research in this field has caused these methods and details to be narrowly stated in the statutes.
One of the problems with using polymer sheets is their separation when loading a prototype. Therefore, this article attempts to use near-surface mounting methods (NSM) to strengthen such beams. This method plays a significant role in reducing the separation of reinforcement sheets. By reducing the effect of early detachment of polymer sheets, increasing the load capacity, increasing the formability and maximizing the use of the material capacity can be expected. Six deep reinforced concrete beams with a span-to-height ratio of 2, 3 and 4 are laboratory-loaded and reinforced by the NSM-EBR method using CFRP and their shear behavior is investigated. Given that the desired failure in deep beams is of the shear type, the NSM reinforcement grooves are installed perpendicular to the direction of the main diagonal cracks and reinforced with carbon polymer fibers. By strengthening the beam in shear using the EBR-NSM method, the type of beam failure did not change, but the number of cracks and tensile bands increased, which caused increase the load-bearing capacity of the beams. In the failure modes, it was observed that no delamination and slippage in the EBR-NSM strengthening system. Due to the presence of the adhesive at a greater depth of the beam, there is no slippage and delamination in the CFRP fibers within the tested specimen. This system has high reliability in terms of stability against slippage. The results showed the shear capacity of the deep beams increase by implementing this approach. Based on the results, it can be concluded that the amount of beam shear load capacity in samples with a span ratio of 2, 3 and 4 increased by 30%, 19% and 12.5% respectively
Volume 0, Issue 0 (in press 2024)
Abstract
Steel plates are widely used in various industries, especially in civil engineering. Low cost in implementation and reduction of seismic mass are the advantage of steel shear wall system compared to other structural systems. The goal of a good design is that along with following the existing guidelines and achieving the desired seismic resistance of the structure, the structure is affordable in terms of weight and cost. Considering that according to the design, it is not possible to achieve the optimal use of the structure's capacity by force control method, the theory of uniform deformations was proposed with the assumption of a constant performance level. The subject of design based on performance increase the safety of the structure against earthquake force and design with optimal seismic performance during the useful life of the structure in seismic areas. Also, compared to the design method based on force control, it can lead to a lighter and economical design.
One of the significant ways to reduce the weight and stiffness of shear walls and boundary elements connected to them is to limit the connection of filler plates to boundary elements. In this method, limiting the length of the connection reduces the force on the beams and columns, and as a result, smaller sections can be used.
In this research, in order to achieve the optimal performance level, two concrete frames with steel shear wall resistant system are subjected to nonlinear analysis. Then, the initial evaluation of the behavior and the correctness of the used method are checked. After that, the effective factors in achieving uniform stress in the height of the structure will be investigated. For this purpose, by using the effect of the thickness parameter and the appropriate pattern of connection of the shear steel plate to the surrounding elements, the way of changing the performance and behavior of the structure will be investigated. For this purpose, 3- and 4-story concrete frames with steel shear wall systems were modeled using ABAQUSTM finite element software. The steel used in the steel shear wall system is ST37. First, the connection of steel shear plates to floor beams was considered and then the influence of the partial connection pattern on the seismic performance of the steel shear wall system was investigated. The modeled frames were subjected to dynamic analysis, linear and nonlinear buckling analysis, and cyclic analysis. Based on the obtained results, the property of energy dissipation in the frame with a steel shear wall system with partial connection has increased significantly. Changing the partial connection pattern led to changing the maximum in-plan relative displacement. Also, the surface of the stress distribution shows that in the partial connection, the stress concentration mainly occurred in the place of the steel shear plate connections. In addition, according to the results of cyclic analysis, considering the partial connection of the steel shear wall has led to a decrease in the average energy absorbed in the structure and an increase in its ductility. Also, changing the connection pattern has affected the average amount of absorbed energy in different loading cycles.
Seyed Shahriar Arab, Mehdi Sadeghi, Changiz Eslahchi, Hamid Pezeshk,
Volume 1, Issue 1 (12-2010)
Abstract
We present a method to predict the flexible and rigid regions based on sequence. We use the free energy of two consequent amino acids to define a factor for distinguishing flexible regions from the rigid ones. Using statistical analysis of this free energy, we assign a normalized number between zero to one hundred which we call it flexibility number. Taking the effects of up to four neighbors of an amino acid, into account, resulted in an efficient prediction of flexible and rigid regions of a protein.
Volume 1, Issue 1 (4-2013)
Abstract
MaqamateHamidi is a good example of a text, which has emerged out of the previous culture and literature. This book has turned into a broad site in which various texts have been mixed in such a way that it represents an extensive array of genres. The main purpose of this study is the discovery and analysis of the intertexual relations in Maqamate Hamidi. To achieve this aim, we investigated twenty three Maqams in this this book in the light of Gerard Jeant’s Transtexuality Theory. The results indicated that MaqamateHamidi is a good example of intertexuality in a sense that different allusions to the Holy Quran are made, and also Arabaic poetry is extravagantly is used. Moreover, Hamidi’s book is greatly modeled on Hamadani and Harriri’s works, which attest to the intertextual nature and diversity of voices within this book. This intertexuality reinforces the coherence of meaning in this text, which is in line with Gerard Jeant’s Intertexuality Theory.
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 (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 2, Issue 1 (4-2002)
Abstract
In this paper, a new propagation model based on UTD for multiple diffraction paths in cellular mobile radio communications in urban environments is proposed. Moreover, the most rigorous novel UTD-based expressions for multiple diffractions by buildings and excess path losses are d - rived and analyzed. For this purpose, building rows are supposed to have rectangular cross-sections with the same heights and spacings. In addition, in this analysis actual electrical
roperties of buildings are regarded.
Previous studies have been concentrated on the simplified models that approximated building rows as absorbing half-screens or perfectly conducting half screens (knife-edges) or 90 degrees wedges. In this work, buildings are assumed flat-roofed parallel rows of dielectric blocks and their actual relative permittivity and conductivity are applied.
Volume 2, Issue 1 (4-2014)
Abstract
In spite of their apparent diversity and variety, Arabic and Persian maqamas are unified, which is the result of a common narrative structure. The main purpose of this study is to uncover this common structure. To this end, 124 maqamas including those of Hamadani, Hariri and Hamidi were analyzed based on Vladimir Propp’s morphology theory. The results indicated that Arabic and Persian maqamas are similar to each other in terms of character types and functioning. Moreover, in 31 functions and seven areas, they are in line with Propp’s theory. Such an approach allowed us to investigate all of these 124 maqamas within a single model and to conclude that narrative structure of these maqamas is the result of a single and primary plan, which has been effective in creation of this genre.
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 (10-2016)
Abstract
Background: Group B streptococcus (GBS) is the major cause of serious life threatening infections in neonates, pregnant women, and other adults with underlying diseases. Capsular polysaccharide typing is a significant way for epidemiological studies of GBS, the pathogenesis, and other studies associated with GBS infections including surveillance programs and vaccine development in future. Molecular serotyping (MS) methods offer more accurate and reliable typing of bacteria. The aim of current study was to differentiate genotypes of clinical GBS isolates based on PCR assay to acquire information about the distribution of GBS types in Hamadan, Iran.
Materials and Methods: A total of 62 clinical GBS strains including vaginal swabs, urine cultures, and blood culture isolates were examined for genotyping using multiplex PCR assay.
Results:Among the 62 GBS isolates examined, all capsular types, except VI, VII, and VIII, were found. Type III was the predominant type with 35 isolates (56.5%), followed by Type V with 11 isolates (17.7%), Type II with 7 isolates (11.3%), Type Ia with 5 isolates (8.1%), and Types Ib and IV with similar prevalence of 2 isolates (3.2%) for each type.
Conclusion: The results of the current study demonstrated that Type III is the predominant type in Hamadan, followed by Types V, II, Ia, Ib, and IV, respectively. Using MS method leads to accurate, sensitive, specific, and fast typing of GBS isolates. The advantages of MS method allow it to analyze various populations and to examine invasive and colonizing isolates in extensive epidemiological studies and surveillance activities. In fact, MS will facilitate the proper formulation of candidate GBS vaccines.
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 3, Issue 1 (No.1 (Tome 5)- 2015)
Abstract
The present article is an attempt for a comparative reading of Marsiaee Baraye Zhale va Ghatelash By "Abutorab Khosravi", an Iranian contemporary author, and Daroonmaye Khaen va Ghahraman by Jorge Luis Borges, Argentinean author, poet and contemporary scholar, based on the revolutionary theories of Post-modernism, which is one of the most significant theories of the contemporary era. This research, by using comparative method based on the theories of Post-modernism and analyzing the evidence, attempts to prove the hypothesis that the commonality between Daroonmaye Khaen va Ghahraman and Marsiaee Baraye Zhale va Ghatelash that in some cases have got imitating nature is not accidental. This reflects the influence of Daroonmaye Khaen va Ghahraman in creating Marsiaee Baraye Zhale va Ghatelash. Using Post-modern approach, similar plot, same narrative style, and common symbols are some of the features that Marsiaee Baraye Zhale va Ghatelash shares in common with Daroonmaye Khaen va Ghahraman. The main purpose of this essay is investigation and analysis of these common features in order to demonstrate the similarities of these two texts.
Volume 3, Issue 1 (1-2017)
Abstract
Background: Gram-negative organisms producing Extended-spectrum beta-lactamases (ESBLs) are presented as a global problem. Klebsiella pneumoniae is considered as one of the most important microorganism of this group. The prevalence rate of K. pneumoniae species is increasing, and this increase is higher in the ESBL group, indicating the increase in antibiotic resistance. We must have sufficient knowledge about regional antibiotics resistance in order to monitor the prevalence rate and antimicrobial resistance among the isolates by appropriate treatment. In this regard, the objective of our study was to evaluate antimicrobial susceptibility among K. pneumoniae isolates by E-test method in Khatam ol Anbia hospital during 2015.
Materials and methods: This descriptive cross-sectional study was carried out during 2015. All clinical samples were collected from intensive care unit (ICU) and general wards of Khatam ol Anbia hospital. All of the K. pneumoniae strains were detected by biochemical and microscopic tests. Antimicrobial susceptibility and minimum inhibitory concentration (MIC) were determined by disk diffusion and E-test methods. Descriptive statistics was used to analyze data.
Results: About 62 K. pneumoniae strains were isolated from clinical samples of ICU and general wards during one year. Of these, 38 (61.3%) isolates were isolated from intensive care unit, and 24 (38.7%) isolates were isolated from the general wards. In this review, the least resistance was related to colistin (4.8%) and Amikacin (14.5%), respectively, and the most resistance was observed to the antibiotics of ciprofloxacin (66.1%), ceftriaxone (62.9%) and gentamicin (59.7%), respectively. Resistance to imipenem was observed in 38.7% of the isolates.
Conclusion: The current study demonstrates that antibiotic resistance pattern is changing, and resistance to imipenem and colistin is rising, so this should be considered as a serious risk for admitted patients in hospital.
Volume 3, Issue 3 (Summer 2023)
Abstract
Hypothetical logic has a special place in the tradition of Avicennan logic. In this tradition, various opinions have been presented about the conditions of the truth of hypothetical sentences and the conditions of syllogisms with hypothetical premises. One of the most prominent Avicennan logicians who discussed it is Shams al-Dīn Samarqandī. The truth of singular cogent hypotheticals is a special topic of Samarqandī about hypotheticals. His analysis of this type of hypotheticals finally led to limiting the number of hypothetical syllogisms. In this article, I compare the opinions of Samarqandī about the conditions for the truth of singular cogent hypotheticals with the opinions of Fakhruddīn Rāzī and Abdullah Jīlanī. I show that the origin of the differences between these logicians is the difference in their interpretations of Avicenna's texts about quantifiers of hypotheticals.
Volume 3, Issue 4 (12-2015)
Abstract
Aim: The importance of osteoporosis is on its relationship with disability, mortality, adverse effects on quality of life, and also the imposed costs on individuals and society. Osteoporosis begins in early adolescence. Therefore, educational programs should begin at an early age. The present research evaluated the effect of designed pamphlet on the knowledge of female seventh grader students in city of Andisheh, Shahriar County, Iran.
Method: This RCT (Randomized Clinical Trial) study included experimental and control groups, each 70, which were attributed randomly. All participants completed the knowledge part of the questionnaire as pre-test. Then the experimental group received designed osteoporosis pamphlets, and post-test was carried out two months after the intervention, which was conducted on Jan 2016. The collected data were analyzed using SPSS 21.
Findings: The studied groups were similar in terms of demographic characteristics such as educational background, age, job and income. The results of paired t-test showed a significant difference before and two months after the intervention (p<0.001). Independent t-test showed a significant difference between the two groups (≤0.001) after two months.
Conclusion: Pamphlet as an educational tool has a significant effect on the knowledge of osteoporosis on seventh grade girl students. Therefore, being easy and cost-effective, this educational tool can be put on the top priorities of educational interventions.
Volume 3, Issue 4 (12-2017)
Abstract
Background: Parasitic infections can cause different chemical changes in human body. This study was designed to determine the liver aminotransferase changes in Iranian people infected by parasite.
Materials and Methods: In this cross-sectional study, blood samples were collected from 183 parasite-infected patients. After serum isolation in laboratory, Alanine aminotransferase (ALT) and Aspartate aminotransferase (AST) rates of all samples were measured according to IFCC standard method, and after recording in the information form, the results were analyzed using descriptive statistics.
Results: The results of this study showed that patients were infected by 19 different types of parasites. Also, the results showed that the average value of ALT and AST in patients were equal to 32.30 ±23.40 and 38.60±34.80, respectively. The ANOVA test showed remarkable statistical differences between these values and various infections. There was positive and significant correlation between ALT and AST.
Conclusion: The abnormality in liver function in patients with eosinophilia can be caused by parasitic infections in endemic areas; therefore, it can be the cause of a differential diagnosis for physicians. Generally, non-significant changes in transaminase levels can also be attributed to the infection low intensity in patients tested.
Volume 3, Issue 4 (12-2017)
Abstract
Background: Enterobious vermicularis (E. vermicularis) is one the most common parasitic infection among children.
Objectives: The present study aimed to determine the prevalence rate of enterobiasis among preschool children in Mazandaran province, northern Iran.
Materials and Methods: In this cross–sectional study, 653 preschool children were recruited via the cluster sampling method during April 2013 to Feb 2014. A questionnaire was administrated to parents by an interviewer and determined children’s socio-demographic characteristics, personal hygiene, and healthy behaviors. The Graham technique was applied for diagnosis. Data were analyzed using logistic regression model and chi-square test.
Results: In a total of 653 examined subjects, the prevalence rate of E. vermicularis was 19.4%, among which 40.9% were male, and 59.1% were female. The highest and lowest prevalence rates of E. vermicularis were found in Neka (61.4%) and Tonekabon (1.6%) districts, respectively. A significant association was found between infection and residency, parental occupations, parental education, number of family members, changing underwear, sterilization of linen clothing, taking daily bath, boiling or ironing clothes.
Conclusions: The high prevalence rate of E. vermicularis infection in this study proves the stability status of enterobiasis in this area, posing a risk for children there. Systematic control of infection in children is proposed.
Volume 3, Issue 6 (11-2015)
Abstract
Aghayed al Nesa written by Agha Jamal Khansari is one of the precious works pertaining to the folk literature. This book is regarded as one of the important sources to know about women in the Safavid period. Not only This book reflects women’s beliefs and behavior but also the relation among women and others in the society. Regardless of its conceptual importance, the book has a major structural feature. It has been composed in parodic form. Parody is one of the neglected satire forms and needs to be studied more. Study and analysis of this text will be done by reference to the first and second sources, and will show its value and importance