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This article discusses the democratization of access to higher education opportunities in Iran. Access to educational opportunities was studied through exploring the scores the national university entrance exams. The main research question was: "How the inequality in access to higher education opportunities is explained?" To solve this problem, we constructed a theoretical model on the basis of capital theory: Access to higher educational opportunities is the function of modernization of parents’ economic and cultural capital. The results showed that cultural capital weight in access to educational opportunities, is more than that of economic capital.

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Horizontal development of the cities has resulted in much destruction environmentally and economically. The building’s façade acts as a barrier between exterior and interior climatic conditions. There are various methods for improving the energy performance of the building. One of these solutions is the ventilated facades. Open joint ventilated façade (OJVF) is a group of ventilated facades in which the exterior coating material (metallic, ceramic, stone or composite) is arranged in slabs separated by open joints that enable exterior air to enter and leave the cavity all along the wall. This ventilation leads to decreasing moisture and problems of condensation and ensure the health of the wall. In addition to aesthetic and constructive reasons, the main interest in open joint ventilated facades is their ability to reduce cooling thermal loads. This is achieved by the buoyancy effect induced by solar radiation inside the ventilated cavity, where the air can enter or leave freely through the joints. The OJVF is usually classified among the “light weight” or “Advanced Integrated Facades”. They are replacing the conventional facade in many new buildings and particularly in the refurbishment of old ones.
In light weight facades, the exterior light coating material is hanged over the interior wall (insulation, perforated brick or concrete, finish) by means of a metallic-frame structure or metallic bindings, leaving an air gap. The air chamber height can be the whole building height. The main difference between the OJVF and other advanced facades is that, as a rule, the ventilated air chamber is only open to the exterior at the top and at the bottom while, in the OJVF, the exterior coating is placed in an arrangement of tiles or slabs and a series of thin gaps (joints) shaped from slab to slab.
The improved thermal performance of the OJVF under radiation conditions relies on buoyancy: The slabs of the exterior coating are heated up and produce an ascending mass flow of air (by natural convection) that enters and leaves the cavity through the joints. This flow removes part of the heat loads. This phenomenon takes also place if the openings are only at the bottom and top of the facade, but the efficiency is not as high due to the reduced flow and the higher temperatures attained at the upper section of the air gap.
The main question is the effect of the open joints on the thermal performance of the façade in the various times of the year. The main objective of this work is to investigate the thermal and fluid dynamic phenomena taking place in a typical OJVF under solar radiation, and to appoint a methodology to quantify the energy savings produced by an OJVF in contrast to a conventional facade.
The determination of the linked thermal and fluid dynamic behaviour of the flow in the open joint air gap is quite a challenge, compared to the sealed cavity or even the top and bottom ventilated facades. The inlet and outlet flow through the joints all along the facade faces the analytical methods, making compulsory the use of CFD tools to obtain a detailed model. To achieve this aim, both of the open joint and the sealed facade have been simulated in the “Fluent” software.
Two series of tests have been carried out for both OJVF and sealed cavity facade. The first ones are steady state simulations directed to understand the phenomena involved, and the second ones are quasi-steady (unsteady or transient) state simulations to compare the energy performance of both systems. For the first group, two temperature conditions were selected, representing summer (T_room=24℃, T_ext = 30℃) and winter (T_room=24℃, T_ext = 8℃) weather. The (absorbed) solar radiation ranges from 0 to 800 W/m2. The radiation values above 400 W/m2 are high for summer, but not for winter, because the sun inclination is lower. The second group comprises two sets of simulations with the exterior temperature and the solar radiation varying hourly: one for a typical day of summer and another for a typical day of winter. The data used for simulations is produced by the Energyplus software.
Due to the extent of the subject, the study has been developed over a particular set of comparable geometries, and with specific climatic conditions; however, special care has been taken to avoid assumptions limiting its application.The OJVF simulated geometry comprises of four cement board tiles and five joints. Each slab is 70 cm that are separated by joints of 8 mm. The exterior coating layer is separated 0.05 m from the massive wall by the ventilated air cavity. The massive wall is composed of gypsum, a brick layer and exterior insulation with a total thickness of 21 cm. To study the heat transfer problem in the case of a conventional wall, a 3D model with the same dimensions has been created to simulate the convective loop inside the sealed air cavity. The only difference with respect to the OJVF model relies in the exterior coating which is continuous (without joints between slabs).
The CFD model developed to simulate a typical OJVF has enabled a better understanding of the ventilation effect induced by the solar radiation in the air gap of the facade. Velocity profiles, together with temperature and heat flux distributions have been compared with those obtained in a conventional sealed cavity facade.
Velocity profiles show that the air flow in the OJVF is ascending in the whole width and does not form a convective loop as in the sealed cavity facade. Moreover, the profiles show much higher velocity values in the case of OJVF. These two characteristics favour the heat removal from the cavity walls, which is one of the most claimed advantages of OJVF under radiation conditions. The air temperature in the cavity remains lower than in the conventional wall, and the heat transferred to the room is therefore lower.
The model has been also used to compare the thermal performance of both facades for the specific climatic conditions of Tehran and Yazd. The results of the simulations conclude that open-joint ventilated façade _in Tehran and Yazd city which are selected with respect to their solar radiation- can help to achieve substantial energy saving. Therefore using the OJVF in the south facade of the building in the aforementioned climates, considering their simple technology, is more suitable than conventional sealed facades.
The comparison of the energy performance of the specific OJVF and conventional façade analysed in this article shows that the open joint façade results in %20.5 energy saving for Tehran and %12 for Yazd through the south facade
At this point, it is not possible to give a definite criterion, because it is still necessary to evaluate the overall year performance of the specific OJVF geometry for each climate conditions, taking into account building costs and the price of the energy used for heating and cooling. Nevertheless, the data found in this study show that the OJVF could be a more energy efficient system than the conventional sealed facade, and help to reduce the cooling needs, mainly for south orientations in places with hot summers and mild winters.

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Horse is one of the most important themes in epic literature that has always been with the hero from the oldest era and even is sometimes unified with the heroes, and during the time it has taken many functions. In this essay, analyzing verse and prose epics and folklore based on the content analysis method, it became clear that sometimes the horse has a direct bond with water and fertility. In some texts, the horse is considered the symbol of wind, as it is evidently mentioned in Eskandarnameh. On the other hand, horse is sometimes a symbol of death, as the black horse of Aphosh, Shabrang Behzad, and the black horse of Esfandiar are linked to death. Sometimes the horse is unified with demon and fairy, as it is mentioned in the Hamzanameh, Firooz Shahnameh and Darabnameh Tarsosi. The horse of Tahmooreth in Shahnameh is also considered as the devil. Horse in some texts has such an important position for the hero that the selection of the horse is also one of the important stages of hero’s improvement, and sometimes even a horse and the horseman will unify as the hero cannot accomplish his mission without the horse, as Rakhsh and Sheborg Behzad in Shahnameh, and Ashghar, the horse of Boran-Dakht in Hamzanameh and Darabnameh Tarsosi are cases in point.

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Objective: The environmental exposure to Magnetic Fields (MFs) may interact with biological systems. MFs are generated from various sources such as power lines, electric appliances at homes and offices, electrified transportation systems including urban railway systems and diagnostic devices such as Magnetic Resonance Imaging (MRI). There are some scientific evidences that imply the exposure to MFs are hazardous to our health and increases the rate of some cancers like leukemia. The biological consequences of exposure to MFs have been investigated from a variety of endpoints. However, most studies have been performed in vitro and have examined effects on cellular processes and its malfunction; such studies can be used as evidence of effects in vivo. Materials and Methods: In this study Bone Marrow Stem Cells were grown in the absence and in the presence of a 15 mT Static Magnetic Field for 5 hours in order to determine any changes in cell cycle progression using the count of cells in different phases. The count of cells in a special phase of cell cycle indicates the length of that phase. The Static Magnetic Field was performed using a locally designed MF generator. Results: A significant increase in the number of cells in G0/G1 was observed in comparison with the controls. Also the number of cells in G0/G1 in the cells treated with Hydrogen-Peroxide, as an oxidative agent, was significantly increased in Static MF. Conclusion: Genetic material damages or mal-function of related proteins may cause these halts. Mfs have not enough energy to affect the biological molecules directly but the mechanism of free radical mediators is probable. These kinds of damages (direct or indirect) can permanently bring the cell cycle to a halt.

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The aim of this study is to investigate analytical and experimental energy absorbing capacity for a hat shape structure with three different boundary conditions. Four layered unidirectional (UD) E-glass fiber /polyester resin was used to construct hat shape beam energy absorber. The length of the composite hat shape was 1m and the thickness was 3mm. Result shows good coloration between experimental energy absorption and the values obtained from the model. The best coloration between experimental and the model is related to [75,0,0,-75] fiber stacking configuration with 0.23% accuracy in clamp-free boundary condition, and the worst coloration between experimental and the model is related to [30,60,-30,-60] fiber stacking configuration with 19.88% accuracy in clamp-free boundary condition.

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DPPH radical-scavenging activity of the bene hull oil (BHO), sesame oil (SEO), rice bran oil (RBO), the oils' methanolic (CH₃OH/H₂O, 80:20 v/v) or hexane extracts, and their unsaponifiable matters fraction were measured and compared with each other. As a radical-scavenger, SEO was significantly stronger than RBO and BHO, respectively. Unlike BHO and RBO, the unsaponifiable (USM) fraction of the SEO could not considerably scavenge the free radicals at the concentrations studied. The contribution of aqueous methanolic and hexane extracts of the SEO to the inhibition of the DPPH radicals were calculated to be about 75 and 25%, respectively. The aqueous methanolic extract of the RBO could not considerably scavenge the free radicals at the concentrations experimented and the inhibition activity belonged mainly to the hexane extract. The DPPH radical-scavenging active components of the BHO were approximately distributed equally (48 and 52%) between the two extracts.

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Archaeology is growing science that continues to discover the material remains of man; hence, it is the best evidence to understand human relations that too shows close co-operation between the neighboring countries, especially Iran and India (present Pakistan). Right from Bronze Age when man started building a better social organization, archaeology presents positive evidences for economic and technological cooperation to boost their living standards. In the case of Indian Sub-continent, the earlier rural evidences from Kili Gul Muhammad (Kili=Urdu word, stands for "Fort") , Zhob and Loralai valleys of Baluchistan show a continuous growth pattern until they reach to mature stage of Indus Archaeology is growing science that continues to discover the material remains of man; hence, it is the best evidence to understand human relations that too shows close co-operation between the neighboring countries, especially Iran and India (present Pakistan). Right from Bronze Age when man started building a better social organization, archaeology presents positive evidences for economic and technological cooperation to boost their living standards. In the case of Indian Sub-continent, the earlier rural evidences from Kili Gul Muhammad (Kili=Urdu word, stands for "Fort") , Zhob and Loralai valleys of Baluchistan show a continuous growth pattern until they reach to mature stage of Indus Civilization that presented by the cities of Mohenjo-Daro and Harappa. It seems that such urban pattern could not develop without its deep contact with the Bronze Age Culture of Iran, as evidenced from the excavations of Bampur, Tepe Yahya, Tepe Sialk and Tepe Hissar. Hence, according to archaeological evidence, one can say the people of Iranian Plateau and those of its extension into Baluchistan and even in Sindh maintained a close trade and commercial relationship. In the beginning of the 4thMillennium B.C., trade spread simultaneously with the art of pottery and the human effort for having agricultural products, and commerce started between the Western and Eastern world. Barley and wheat from Iran were exported to Egypt and Europe, and millet from India was exported to the West via Iran. Plenty of seals and identical ornaments found in Iran and throughout the vast Indus Basin and the areas of Mesopotamia and Central Asia are evidences of the simultaneous expansion of trade in the Great Iranian Plateau. This article tries to discuss and prove that the gradual progress in this vast basin, especially in ancient sites of Iran and Western India could be possible through road links, such as Silk Road, and it strengthens the claim and leads to the point that this link has been solely through growing trade and commerce. The next point, it will express that this trade not only was responsible for the emergence of the stimuli for the development of simple and original settlement in a section of the proposed area but also developed cultural relations especially in the patterns of urbanization, architecture and arts which is highlighted in two ancient cities, Shahr-i Sokhta in Sistan (Iran) and Mohenjo-daro in Sindh (Pakistan), in 3rd Millennium B.C.

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In this study, biodegradable packaging based on gelatin biopolymer (at a concentration of 3% w/w) containing nanoparticles of titanium dioxide (at a concentration of 1% w/w) and saffron extract (at a concentration of 2% v) by evaporation method was synthesized. In this study, physical properties (thickness, transparency, moisture content, solubility and water vapor permeability), mechanical, antimicrobial and antioxidant properties, structural and transparency properties of films were investigated. After analyzing the data, the results showed that the effect of saffron extract and titanium dioxide nanoparticles on all the studied properties was significant (P <0.05). Addition of titanium dioxide nanoparticles and saffron extract increased the thickness, improved the mechanical properties and reduced the moisture content, water vapor permeability, transparency, and solubility. Also, nanocomposite films containing titanium dioxide nanoparticles and saffron extract showed antioxidant properties (% 80%) and acceptable antimicrobial effects, especially against gram-positive Staphylococcus aureus bacteria. According to the results of this study, this type of packaging can be suggested as a suitable alternative to synthetic packaging.

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Persian language and literature have a presence of about one thousand years in the Indian subcontinent. The growth of this language is indebted to Ghourid rulers whose mother tongue was Persian. However, we should not be negligent of the significant role of great Iranian Sufis and mystics such as Ali Ibn Othman Hojviri, Khawaja Moinuddin Chishti and Sayyed Ali Hamadani. The necessity of a research about the continuation and growth of Persian language in Pakistan is due to the questions as when this language and literature found its way and what is their importance in this country, as well as to what extent they have influenced Urdu and eventually their effects on Iranian studies. The research method is based on the review of historical documents with emphasis on numerous manuscripts kept in national and private libraries in Pakistan. The outcome of this research shows that the strength and solidity of Urdu is in critical need of more manuscript sources and stone-print documents for better understanding of spiritual culture, historical and public identity of Pakistan and seriously demands preservation of the ancient heritage of this region and production of new sources for the modern history and culture of Pakistan. Persian language and its heritage no doubt have a great share in this regard.

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Considering the effect of sports on different aspects of individual and social life and its importance at the national level, the present study seeks to examine the role of mass media (radio, television, magazines and internet) in the tendency of women in Tehran. The research method is based on survey and questionnaire data collected from the women statistical society of Tehran. For that matter, 384 people were selected by multi-stage cluster sampling. They were those practicing in public parks and sports clubs in different part of Tehran. The main method in data analysis was Pearson and structural equation modeling and factor analysis with SPSS and AMOS software. Giddens and Budrillard were taken into account to explain the subject in a theatrical framework. The results show that there was a relationship between variables (age and level of development of residential area and women tendency to public sports, but there was no relationship between (academic levels, access to of sports facilities). The results also show that there was a direct and significant relationship between the dimension of media function (eduction, information and advertising, personal body management) and the tendency to public sports, among which information and advertising have the highest correlation coefficient i.e. 0/471 and personal body management had the lowest correlation coefficient of 0/171.