Showing 50 results for Abedin
Volume 2, Issue 7 (Fall 2009)
Abstract
In his Notebooks (1914-1916), Wittgenstein announces that ‘artwork is the object seen sub specie aeternitatis’. At nearly the same time, in another part of the world, there was a critic and thinker, who thought art as making objects ‘unfamiliar’. He was Victor Shklovsky. I argue that there is a noticeable and yet unintended similarity and relation between these two aesthetic viewpoints. Wittgenstein and Shklovsky’s emphasis on art is its power to pave the way for the readers (in the extended sense of meaning) to feel things in themselves and ‘out of their normal context’. As Shklovsky claims ‘art removes objects from the automatism of perception in several ways’; in contrast, through ordinary way of seeing, objects are ‘reckoned as nothing’. According to Wittgenstein and similar to Shklovsky’s attitude ‘aesthetically the miracle is that the world exists. That what exists does exist’. In this paper I attempt to show that the early Wittgenstein’s ideas of aesthetics are in harmony with the Shklovsky’s formalistic theory of art. In this direction, I focus on Wittgenstein’s sub specie aeternitatis’ and Shklovsky’s defamiliarization; because I think that they fill each other’s gaps. An artist defamiliarizes objects and the spectators see the objects sub specie aeternitatis. In Shklovsky’s thinking Habitualization (which ‘devours works, clothes, furniture, one’s wife and the fear of war’) is very near to what Wittgenstein means by ‘the usual way of looking at things’.
Volume 3, Issue 2 (Spring 2021)
Abstract
China has launched the Silk Road Rehabilitation Project, a "one-way belt project," as a comprehensive regional project. The main goal of this project is to enhance the level of development of the countries between the eastern and western borders of Eurasia by facilitating regional cooperation and developing the infrastructure of the transit countries. The project has two routes: the Silk Road Economic Belt and the 21st Century Maritime Silk Road. The one-way belt project has various geopolitical, economic, political and commercial dimensions. Areas of non-economic cooperation within the framework of this project include: ensuring the security of trade routes, strengthening counterterrorism cooperation at the regional level, designing mechanisms for resolving disputes over land and sea disputes, developing marine resources, and cooperating in the field of environmental protection and increasing in cultural exchanges. This study using the descriptive- analytic method explains the geopolitical position of Chabahar port in China’s Maritime Silk Road in the 21st Century.
Volume 3, Issue 3 (Fall 2019)
Abstract
In this study, the three phase mixed matrix membranes comprising Pebax®1657, PEG-200 and MIL-53(AL) nanoparticles were evaluated for CO2 gas separation. The effect of various PEG-200 and MIL-53(AL) concentration within the pebax polymeric matrix on the structure, gas permeability, and selectivity of the membranes was investigated. To study the cross-sectional morphology, crystallinity and thermal properties of the synthesized membranes, scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were utilized, respectively. Fourier transform infrared (FT-IR), was also carried out to identify the formation of the chemical bonds in the membrane. SEM images demonstrated a uniform cross-section and admissible dispersion of nanoparticles. The results of the thermal analyses indicated an increase in crystallinity and Tg in presence of MIL-53 particles. Permeation of pure gases (i.e., CO2, CH4) through the prepared neat Pebax®1657, the blended Pebax/PEG-200 and the Pebax/PEG-200/MIL-53(AL) mixed matrix membrane was measured at the pressure of 2–10 bar and temperature of 30 °C. The results showed that at the pressure 10 bar, the CO2 gas permeation from 133.36 barrer in pure membrane increased to 311.7 barrer (134%) in a membrane containing 10%wt MIL-53.
Volume 3, Issue 4 (Winter 2020)
Abstract
Research subject: Selectivity and permeability are the major parameters of polymeric membranes in gas separation process. Hence, nowadays in order to improve aforementioned parameters, modification and enhancement issues for such membrane have been highly noticed.
Research approach: In this study, in order to improve the performance of polymeric membranes, the two-component blend membranes containing Pebax®1657 and PVA were synthesized for CO2 separation. The effect of different PVA concentrations within the Pebax matrix on structure, morphology and gas separation properties of resultant membranes was investigated. The chemical bonds, crystallinity and cross-sectional morphology studied through, Fourier transform infrared (FTIR), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM), and were utilized.
Main results: The results of the thermal analysis indicated an increase in crystallinity and also glass transition temperature in presence of 5 – 15 wt.% PVA, while the membrane crystallinity decreased by increasing the PVA content up to 20 wt.%. FESEM images demonstrated a uniform cross-section without any cracks and defects for neat Pebax membrane but by adding PVA to Pebax matrix, appeared cracks and cave structures on the cross- section of blend membranes. The CO2/CH4 separation performance of membranes was measured using a constant volume set up at 30°C and feed pressure of 2, 6 and 10 bar. The obtained results revealed that the CO2 permeability in blend membranes improved as the PVA content increased within the membrane. The best obtained CO2 permeability was 204.64 Barrer which gained by Pebax/PVA (20wt.%) at feed pressure of 10 bar. Moreover, the highest selectivity of CO2/N2 for blend membrane with 15 wt.% of PVA was about 100.21 at 10 bar and 30°C.
Volume 3, Issue 10 (Summer 2010)
Abstract
One philosophical theme often attributed to Khayyámic rubáis is nihilism, which unfortunately has not been examined in detail and according to a firm theoretical basis. This paper probes into the theme in two famous Persian collections of such rubáis: Sadeq Hedayat’s edition of Taraneh-haye Khayyám as well as Forughi and Ghani’s Rubáiyát of Omar Khayyám. For this purpose, the paper consists of an introduction as well as two main parts and a conclusion. In the introduction, the necessity of holding the theory of Khayyámic rubáis —that is, a school of rubái-composing after Omar Khayyam and not the Rubáiyát of Khayyam— is explained. In the first part of the paper, which is entirely theoretical, based on Donald Crosby’s classification of nihilisms in his book, The Specter of the Absurd, two relating types of nihilism along with some common arguments for nihilism are mentioned. In the second practical part, the aforementioned definitions and assumptions are applied to the rubáis under discussion. At the end comes the conclusion.
Volume 4, Issue 3 (fall 2023)
Abstract
Problem: The concept of urban public art and its emergence in the public sphere is one of the most important factors in strengthening and accelerating the process of the creative city. Street music as an urban public art, is an influential event in urban communities that seeks to improve the quality of social life, strengthen collective memories, increase the level of vitality and dynamism of the city and achieve creative urban development.
Target: The authors try to redefine the importance and significance of the urban public arts event in urban spaces, identify the feasibility of performing street music in social environments. The green corridor of Shahrchai and the Khayyam Jonubi sidewalk of Urmia city have been studied.
Method: In this regard, in the present study, information has been collected with the aim of application and descriptive-analytical nature and by using documentary-library methods, questionnaire and interview tools. The statistical population and sample size consist of two groups of experts, thinkers and university professors and active members of street music, which includes 60 samples including stratified or group sampling method. For quantitative analysis, the methods of Kolmogorov-Smirnov, Spearman Correlation, Swara and Cocoso have been used.
Result: According to the findings, the social, cultural and environmental dimensions and the indicators of "possibility of live music performance" and "quality of environmental design" have gained the highest and lowest levels of importance, respectively. Also, the green corridor of Shahrchai has more favorable conditions than the performance of urban Public arts (street music) compared to the Khayyam Jonubi sidewalk of Urmia.
Volume 6, Issue 2 (9-2014)
Abstract
This paper examines the characteristics and vulnerabilities of the second Pahlavi and its role in the revolutionary mobilization. The main question of the paper is that: what are the characteristics and vulnerabilities of the Shah's government that led to the revolutionary mobilization? To answer this question, document analysis has been used that is a kind of qualitative research. By this method, documents including books, articles and dissertations have been investigated. Therefore, in this paper, the combination of state–centric theories including the theories of independence of state, capabilities of state, political opportunities of state, and construction of state were used to develop a model to explain the status of the Pahlavi state and also its vulnerabilities, and also its relation to revolutionary mobilization. The findings showed that the most important vulnerabilities of Pahlavi state include independence of the Pahlavi rentire state from the social classes, discapabilities of the state in policy making, bureaucratic weakness of the state institutions, state monopolies, and vulnerabilities resulting from modernization, and roforms, which in combination with each other led to the revolutionary mobilization.
Volume 6, Issue 2 (9-2016)
Abstract
Supplier development refers to the purchaser activities to improve supplier performance in the areas of quality, cost, time of ordering to delivery, service, reliability, and promotion of suppliers knowledge which positively affects the operational and business performance of purchaser. The present study deals with suppliers' development strategies including enhancement of suppliers’ quality improvement systems, data exchange with suppliers in the areas of quality, suppliers’ process improvement, suppliers’ productivity enhancement and contribute to the development of the suppliers’ product by the Balanced Scorecard (BSC) approach, Analytic Network Process (ANP) and Revised Decision Making Trial and Evaluation Laboratory (Revised DEMATEL) techniques. The population of the current research consists of the foundry companies having more than 200 subject as human resources in Iran which manufacture the automobile parts. The research findings have shown that financial perspective (0.5417) , learning and growth perspective (0.0688) are respectively the most important and the least important dimensions to improve organization performance. in addition , information exchange with suppliers in the areas of quality (0.30) and suppliers' productivity increasing (0.11) are respectively the most and least important strategies in suppliers' development.
Volume 9, Issue 1 (12-2017)
Abstract
This article compares the contexts of the Islamic Revolution of Iran and the revolution of Egypt based on the theoretical model of John Foran. It is attempted to answer this question that what the similarities and differences between the revolutions of Iran and Egypt are, that the Iranian revolution has won and continued, But the Egyptian revolution did not continue after victory.
The theoretical framework of this article is the John Foran's combined model of the third world social revolutions. According to this model, several structural factors affect the occurrence of social revolutions, which include: 1) dependent development; 2) repressive, monopolistic and personal government; 3) formation and crystallization of political culture of resistance and revolutionary crisis; (4) the economic recession; and (5) the open relationship with the global system.
The method used in this research is qualitative method and of a documentary analysis kind, as well as a historical comparison. The results indicate that according to the third world social revolution model, all the factors suggested in this model were involved in the occurrence of two Iranian-Egyptian revolutions.
Volume 10, Issue 1 (Spring 2020)
Abstract
Aims: Religious places are considered as important areas in cities so that they have supplied the bio balance and social life in the past. The development of cities and population growth have disrupted the balance of such textures and caused fundamental changes in their structure. An example of this issue is the inefficient texture of Emamzadeh Saleh (AS) which has been damaged in terms of historical values with the expansion of the city and its adjacent commercial space. Thus, regeneration of this urban area based on the recognition of contextual problems and the attitude of Islamic city studies and contemporization is among the objectives of the present study.
Instruments & Methods: This study is applied-developmental and its method is based on descriptive-analytical method. The library is the data collection tool for discussing the component of regeneration and the criteria are extracted through analyzing the data. In addition, the analysis of texture is performed through field surveys and observations.
Findings: By reviewing the previous studies, Islamic city strategies are explained based on environmental, physical, economic, and social criteria and the components of contemporization are extracted based on these criteria. Besides, the strengths and weaknesses of the adjacent urban area have explored for identifying the regeneration components.
Conclusion: Urban regeneration facing runaway development requires an identity-oriented and originality-based approach in order to restore the past social value based on society needs by the help of the latest factors. In Islamic city studies, the status of religious places is of great importance in quality improvement and its epitome is contemporization adjacent areas of Ememzadeh Saleh (AS).
Volume 10, Issue 1 (Winter 2024)
Abstract
Background: Mycoplasma pneumoniae strains are among the main causes of community-acquired pneumonia (CAP) in humans. Early detection of this microorganism is important to improve treatment efficiency. This study aimed to detect M. pneumoniae (MP)-specific immunoglobulin M (IgM) and MP DNA among pediatric patients with CAP during one week after admission.
Materials & Methods: From September 2019 to February 2020, 56 CAP patients aged 5 to 15 years were investigated for the presence of MP. Throat swabs for molecular detection of MP and blood samples for detection of cold agglutinins and MP-specific IgG and IgM antibodies were collected at admission. Blood and throat samples were taken again 6 days after admission. Macrolide resistance due to mutations in the 23S rRNA gene was also investigated.
Findings: MP-specific IgM was found in 19.6%, IgG in 16.1%, and cold agglutinins in 26.8% of CAP patients. The combination of IgM+IgG was not found. Tachypnea and the need for intensive care were more common in IgM-positive than in IgM-negative patients. Only four patients were positive for MP DNA, of whom two patients carried macrolide-resistant isolates. One isolate had an A2063G mutation and the other had an A2064C mutation.
Conclusion: To the best of our knowledge, there are no data on the epidemiology of MP in 5-15-year-old patients with CAP in Kurdistan, western Iran. The possibility of false-positive or -negative reactions and co-presence with other microorganisms could not be excluded.
Volume 10, Issue 2 (Spring 2022)
Abstract
Aims: Maternal health and pregnancy outcomes are vitally important areas of each country's healthcare system. This study aimed to investigate the acceptability of a mobile app-based intervention program for choosing the mode of delivery among pregnant women.
Materials & Method: Thirty pregnant women participated in this study. The Mobile App-Based Program focused on facilitating choosing mode of delivery based on information, motivation, and behavior model among pregnant women in Tehran, Iran. A retrospective post-intervention study was carried out. We used quantitative and qualitative semi-structured interviews to explore the experiences of women participating in the Mobile app-based program and investigate the intervention's acceptability.
Finding: Quantitative result has shown that 76.6% of the users assessed the application as usable. In the qualitative section of the study, three main themes were emerged: 1- specific features of the App (images, text, colors, and etc.); 2- advantages (distance learning method, reliability, and credibility, being user-friendly and comfortability, time-saving, and being interactive); and 3- disadvantages (fear of mobile radiation on fetus, poor internet connection, and limited audience) regarding using of the intervention.
Conclusion: This mobile application eased women's knowledge and behavior and satisfied them, specifically during the new-emerged pandemic. It also helped women to clarify their thoughts regarding their choice on mode of delivery. Participants suggested some shortages using the application that should be noticed.
Volume 10, Issue 3 (Fall 2020)
Abstract
Aims: The forming elements result in the shape of the city during the history and according to the requirements of their dweller have followed a lawful and completely intangible geometry that, in their unorganized appearance, can interact and strike a balance among government, nation, and religion. The present study seeks to read and analyze the hidden geometry in the form of the city in the historical past that facilitates the connection between social pillars of the city.
Instruments & Methods: The method of this study is based on a qualitative approach of the historical-analytic type. By studying in the libraries and documents, this study has analyzed the hidden system of traditional city and the impact of modern development on it. In the case study of Sabze-Meydan, reading the hidden geometry is based on three heads of state, nation, and religion.
Findings: Hidden geometry in historic cities is a spirit that dominated the inner layers of the city and, with a systematic structure in functional and perceptual aspects, regulates the religious, political, and social relations of its inhabitants. With the advent of modernity and its fundamental transformations, the city of Tehran has been transformed. The proportions of the hidden and organic geometry in the Sabze-Meydan complex are transformed into euclidean geometry with perpendicular streets, and its balance is disturbed.
Conclusion: The geometric system contained in a city expresses the identity and civilization in it. The regular geometry of the modern city contrasts with the inner authenticity of the historical areas. Hence, the study of the hidden geometry of historical zones requires the adoption of an appropriate intervention approach in the city’s historical and charismatic tissues, through which historical authenticity can be restored.
Volume 11, Issue 2 (Spring 2020)
Abstract
In this study, the effect of red and blue illumination on continuous culture of two different species of microalgae and cynicocytosis was studied. Comparison of blue and red lights in the cyanobacteria, Synechocystis sp. PCC6803, showed that this specie grows very fast under red light illumination, but it has very slow growth rate under blue light exposure. In spite of huge difference in growth rate, the lipid content and the fatty acid composition of Synechocystis was approximately the same for red and blue light illumination. For microalgae, Chlorella Sorokiniana, the blue light resulted to slightly higher growth rate than the red light. The C18:3 unsaturated fatty acid content was significantly higher for red light illumination compare to blue light illumination. Overall, considering the lower energy requirement for illumination of red, this light is more efficient than blue light for cultivation of Chlorella Sorokiniana.
Volume 11, Issue 3 (Summer 2023)
Abstract
Aims: Research shows that students are one of the groups at risk of Internet addiction, and it seems necessary to control their psychological and social well-being affected by Internet addiction. The expansion of various job, educational, and communication dimensions of the Internet makes clear the necessity of using this tool in different groups, especially students; therefore, this study was conducted to determine the effectiveness of an educational intervention based on social cognitive theory on reducing Internet addiction in medical students of Bandar Abbas.
Materials & Methods: This semi-experimental intervention study was conducted on 201 students of Banda Abbas University of Medical Sciences in 2020. Initially, students answered a researcher-made social cognitive theory (SCT) questionnaire and Young's Internet Addiction Inventory (IAT). Then, they were placed in two intervention and control groups with the same distribution. The intervention group received educational content for six weeks to reduce Internet addiction. Two months later, two groups completed the questionnaires again, and the data were analyzed with SPSS 16 software with covariance analysis and logistic regression.
Findings: Statistically significant differences were observed between the two groups in knowledge (F=7.138; p=0.008), outcome expectation (F=7.881; p=0.006), outcome expectancies (F=8.697; p=0.004), self-efficacy to overcome obstacles (F=6.294; p=0.013), self-regulation (F=5.680; p=0.018) and emotional adjustment (F=8.664; p=0.004).
Conclusion: Educational intervention based on the social cognitive theory affects knowledge, outcome expectations, outcome expectancies, self-efficacy to overcome impediments, self-control, and emotional coping of Internet addiction.
Volume 11, Issue 20 (Supplementary Issue (Tome 55)- 2007)
Abstract
In recent decades, organizations have increasingly focused on developing ICTs and introducing new e-services to their customers, so they have largely invested in web development and promotional activities.Therefore, it is essential for them to evaluate their websites and identify how well they are structured.and how web pages are organized. Evaluating web structure requires proper methods and measures.This paper intends to model a website as a graph and introduce new measures to evaluate website link structure.The model is based on the analysis of online behavior of the website's visitors. Thus, a real problem of the website of an Iranian university was described and, its structure was evaluated using this model between September-05 to November 2005.
Volume 12, Issue 2 (1-2022)
Abstract
Graphene-based nanomaterials are being investigated for their biocompatibility and bioactivity, as well as their ability to improve osteogenic differentiation. In this research, the base material, reduced graphene oxide (rGO) sheets, were decorated with hydroxyapatite and strontium (rGO / HAp-Sr) to induce osteogenic differentiation in adipose-derived mesenchymal stem cells. Different techniques were used to determine the properties of the nanocomposite such as diffraction analysis techniques (XRD) and transmission electron microscopy (to evaluate the size and morphology of HAp-Sr on rGO plates), FT-IR (to analyze the nanocomposite functional group), Raman spectroscopy (to investigate possible disorders in nanocomposite structure and number of layers), induced dual plasma emission spectroscopy (to assess atomic concentration of Ca and Sr), zeta potential(electrical potential of the nanocomposite) and MTT (nanocomposite cytotoxicity assessment) were used. The ossification potential of the synthesized nanocomposite was investigated and confirmed using the calcium deposition test in dipose-derived mesenchymal stem cells. According to the obtained results, osteogenic differentiation induction is possible using synthesized nanocomposites without the need for chemical inducers.
Volume 13, Issue 1 (Spring & Summer 2009)
Abstract
This paper investigates assessments of challenges, problems and Success of Sahand new town with attention to its established purposes. Increasing urban population, large cities have been faced abundant problems and new towns have been located and constructed in hinterland of large cities in purpose of attracting their additional population. Sahand new town has been established in hinterland of Tabriz for decreasing of its population, economic, social and spatial problems. So, Sahand new town hasn’t been decreased problems of Tabriz and it hasn’t been achieved its purposes. Economic employment of new town is based on industry and university of Sahand; unfortunately, industry and university hasn’t had efficient impacts in this new town. Therefore Sahand has been faced abundant economic, social, spatial and planning problems.
Volume 13, Issue 2 (Fall & Winter 2009)
Abstract
This paper examines the subdivision, share holding and regulations in the urban planning of Iran. The rules and regulations of subdivision and share holding in urban lands are suitable mechanism for spatial layout, restricting unsuitable growth of cities and preventing the destruction of good lands for different land-uses, especially for residential applications. It is necessary that subdivision and share holding to be used on the basis of master, detailed and guide plans. Registry offices and courts of justice interfere in subdivision and share holding. Of course, these organizations act on the basis of urban master plans and executive maps of the municipalities. The current rules can not prevent solely from illegal subdivisions and share holdings. Therefore, efficient management and cultural education of individuals can promote the ongoing situation in Iran.
Volume 13, Issue 3 (4-2023)
Abstract
Studies show that each person makes an average of 35,000 decisions per day. Although this number is highly exaggerated, it cannot be denied that we make countless decisions on a daily basis. Decision fatigue refers to the fact that making repeated decisions impairs a person's ability to make fully informed and rational subsequent decisions. Therefore, the state of ego depletion, especially as a result of repeated decisions, is called decision fatigue. The lived experience of researchers along with senior managers in different organizations is the origin of this study. The results of this study show that from the set of managers' behavioral strategies, the person acts as a completely rational decision maker. But the evidence shows otherwise. This is true not only for ordinary people, but also for some highly trained professionals. The current study is a qualitative research that was conducted using the narrative research method. The qualitative data in this study is in the form of narratives derived from in-depth interviews with 11 senior managers in the public sector, which were analyzed using thematic analysis. The findings indicate that the causes of decision fatigue are personality traits, interpersonal issues, work difficulty threshold, and organizational factors.
