In this research the effect of both calcium carbonate nanoparticles and PP-g-MA ones on impact strength and Young's modulus of Polypropylene (PP) are investigated experimentally. Two kinds of CaC03 nanoparticles (monolayer-coated and uncoated) are used to investigate the effect of surface treatment of nanoparticles on the mechanical properties of these composites. All samples are mixed in a co-rotating twin screw extruder and are formed ninto standard tensile and impact bars using the injection molding method. The effect of surface modification of nanoparticles and presence of PP-g-MA on the dispersion of calcium carbonate nanoparticles in polypropylene matrix are studied by field emission scanning electron microscopy (FESEM). The results show a good agreement between the TGA analysis and the related theory. The results also show that surface modification of calcium carbonate nanoparticles and also the PP-g-MA are affective in improving the distribution and dispersion of nanoparticles in the PP matrix. Increasing of the calcium carbonate nanoparticles improves both the impact strength and the Young's modulus of polypropylene. The more the PP-g-MA is added to PP matrix the more the impact strength of the samples increases and the less their Young's modulus decreases.

MA×MA60 is a sweet cherry semi dwarf rootstock that is easily reproduced through micropropagation and because of the resistance to phytophytora, which is one of the most important factors in the deterioration of stone fruit trees, it is a valuable rootstock. The aim of this study was to investigate the effect of culture media and plant growth regulators on the proliferation and rooting of MA×MA60 rootstock at the Khorasan Razavi Agricultural and Natural Resources Research and Education Center. This experiment was conducted as a factorial in a completely randomized design with 4 replications. At the proliferation stage, the treatments consisted of three culture media (MS, WPM and DKW) and two growth regulators (benzyl amino purine and thiadiazuron) at concentrations of 0, 1 and 2 mgL-1 and at the rooting stage, treatments consisted of three culture media (MS, WPM and DKW) and different concentrations of indole-butyric acid (0, 1, 2 and 3 mgL-1). The results showed that in the proliferation stage, the highest number of shoots (33.6), leaves (20.33) and plantlet quality (3) were recorded in MS medium enriched with 2 mgL-1 of benzyl amino purine, and the shoot length (3.2 cm) in the MS medium enriched with 1 mgL-1 thiadiazuron. The highest rooting percentage (75%) and root number (5.33) were obtained in MS medium enriched with 3 mgL-1 indole buteric acid and DKW enriched with 2 mgL-1 indole buteric acid, respectively. Plantlets successfully adapted to the greenhouse conditions. Survival rate was about 75% in cocopeat and perlite culture.

The aim of the study is to answer the following question: which of the predictive indicators used in this study is the best way for predicting stock price, and is considered as the higher credibility for predicting stock price in the Tehran stock exchange? For this reason it is used the methods of a simple moving average and Weighted moving average and exponential moving average for symbol periods of 30 days, 60 days and 90 days. And then predicted results are compared with the actual price, and finally, various methods have been evaluated by two different indexes consist of Mean Absolute Deviation (MAD) and Tracer Symbol (TS).The results show that the exponential moving average methods for thirty-days period is entitled the highest credibility for predicting stock price.

After the modern era and while the post modernity gifts caused changes in life style and human being theory in the twentieth century historical time, the art and literature were modified as well in direction of evolution and completion and based a new method named "Minimalism" so that by utilizing the brevity it becomes able to coordinate itself with dominating quick passage of life. Nowadays, the minimalism is remembered as a new phenomenon appeared from the west culture, while in Iranian classic literature, it is possible to find a plenty of samples which correspond with this literary style. This study will introduce the literary classic works of Iran which incept the specifications of minimalism stories in addition to expressing the minimal concept and characteristics of these stories; it also, will hand over a new outlook concerning the structure of these Iranian stories and ancient narrations.

Nowadays, tests are implemented as a powerful and at the same time a dangerous tool at different levels of education. The variety of decisions in deterniining the achievement level of the learners, their success in future careers, issuing certificates, and designating the right people for the right professional positions, and admission to universities have made testing a complex phenomenon.One of the significant functions of tests is admitting students for pursuing their studies at different levels of higher education. This is an important responsibility on the side of the authorities which gets more serious and complex as the level of admission elevates. It gets more serious because the higher the level of education, the more investment is needed. It gets more complex because higher levels of knowledge should be tested. Due to this seriousness and complexity, this paper is limited to one of the many majors at the MA level. More specifically,the purpose of this paper is to examine the MA tests for the TEFL majors. The procedures followed will be an attempt to answer the following questions: 1. What should be the ideal quality and quantity of the MA tests in TEFL?2. What is the quality of MA tests in TEFL at present?3. How should the gap between the ideal and reality be filled?In answering these questions, certain suggestions are made to improve the quality and scientific characteristics of the tests.

The present article has been drafted and compiled with an emphasis on the principles of ethical critique, which is a branch of the content critique, and upon presenting conceptual definitions about ethics, its evidences and manifestations, which have been considered as the branches sprouted from the stem of the ethic tree, are discovered and extracted from six chapters of Masnavi, and analyzed according to a conceptual classification. The pivotal concepts which are discussed in this article are listed as follows:1.Affirmative concepts (affirmative ethic) which are themselves divided into two parts:1.1.Individual ethic, including concepts such as self-esteem, generosity, and sincerity in action;1.2.Social ethic, including concepts such as value of friendship and determination and caution;2.Divestive or evasive concepts (evasive ethic), such as avoiding ill-considered acts and refraining from fault finding and slandering3.Philosophy of ethic: In this section samples of the Masnavi literature with a color and dialect of philosophical schools which may be compared with ethic in the cynic school are pointed out.

Blend of PP/PET is an immiscible composition because of the difference between solubility coefficient and lack of attraction between polar/non-polar polymers. For inducing required miscibility in the blend, various compatibilizers are used. In this research, PP-g-MA is being employed. This copolymer is produced from the chemical reaction and grafting between maleic anhydride (MA), dicumyl peroxide (DCP) and polypropylene (PP) The effect of adding DCP concentration (at constant MA) increases the grafting efficiency on PP and on the other hand, enhancing MA concentration (at constant DCP) decreases grafting efficiency. The results indicate that PP-g-MA makes PET fibrillar to become smaller and it also makes the phases to become closer. It is found however that using this compatibilizer, specially in large amount, decreases the mechanical properties of the blend.

Public culture and language have conventional and intersecting boundaries with formal literature, and the interaction between these two fields has always existed in our literary history. However, such interaction has been more salient in some intellectual trends and genres. One genre of prose that is deeply linked to the public language and culture is theosophists’ verbal speech, part of which is known as “ Ma’ arif” . The influence that the public language and culture has on these texts is not just limited to the aesthetic use of a few elements or the speakers’ lived culture. Rather, it has a strong association with the substructure and superstructure of these works. The present research is an analytic-description study aimed at a better perception and identification of the interaction between formal and public literature in the area of mystical literature through analyzing three works of Baha valad Ma’ arif, Burhan al-Din Muhaqqiq Tirmidhi Ma’ arif, and Sultan Walad Ma’ arif. Scrutiny into the text lines interwoven into the areas of public culture and language and analysis of the ground and elements of created pictures revealed precious and perhaps forgotten details about public language and culture and its development through time. Furthermore, such analysis has been useful to understand these texts and to recognize the structure of their speakers’ thought and culture, besides disclosing their anthropological tendencies.