علیرضا نایبی

Lyrical literature is the soft expression of the poet or writer's feelings and personal feelings, and deals with love, friendship, suffering, and disappointment. What distinguishes this type of literature from others is the predominance of the element of emotion and feeling over other poetic elements. The deeper the poet's emotions and the more delicate his feelings, the more penetrating and enjoyable his words are. Lyrical literature has a more prominent characteristic compared to other genres, and is considered, in terms of rank, the oldest, purest, and most imaginative type of literature. The research is based on analyzing and studying the important lyrical aspects of the novel A Midnight Dream and looking at the opinions of experts and their direct reception of the lyrical works. The current research method is content analysis based on the foundations of the descriptive analytical method. The results of the research showed that in the content aspects of the lyric literature in the novel A Midnight Dream, there are components such as emotionality and sentimentality, description of (man, animal, and place), complaint and reproach, human moral characteristics, romance, negative view of the world and blaming eternity, sad space, supplication and soliloquy, wishful thinking, and bragging. , daily events, self-talk, hope, joy and humor, regret and oaths. Midnight Dream is a novel containing mostly lyrical elements. The author mixed most of the lyrical aspects with his inner feelings, and presented them in the form of vocabulary and the form of a novel.

ACHEON nozzle is a thrust vectoring control device in which interaction of two jet flows under the influence of Coanda effects is implemented. The effects of inlet mass flow rate and the position of septum (relative to nozzle outlet) on flow structure, thrust vectoring, and shock formation have not been paid enough attention in previous studies. However, in this study, different mass flow rates and various positions of the septum were investigated. Flow was considered turbulent, two-dimensional, stationary, and compressible and RANS approach with standard k-ε model was implemented. The equations were solved using a pressure-based finite volume method on a structured computational grid. Using different Mach and Reynolds numbers and also various positions of the septum, thrust vectoring angle, flow structure, and nozzle shock position were studied. Our results show that with increasing inlet mass flow rate, thrust vectoring angle increases. It is noted that at a certain mass flow rate, a normal shock wave is formed in the nozzle. Also, except at this special mass flow rate (with shock wave), increasing inlet mass flow rate leads to increasing thrust vectoring angle. In addition, reducing the distance between the septum tip and the nozzle outlet increases thrust vectoring angle.

Nowadays, the term "science production" has gotten a special place in our country and has occupied the minds of the government officials and those who plan the scientific and research affairs. One of the most worthy parts in this regard, is the examining of scientific – research papers production in scholarly journals. To do this, it has been tried, in present study, to analyze the statistical data collected from the website of the Persian Literature, the quarterly journal of the University of Tehran to explore and discuss about the number of authors, their scientific degrees, the centers and institutes active in the journal, the extent of co-operation between authors and etc. The results show that 60 papers have been produced individually, 97 papers have been jointly produced, from which the authors of 63 papers belong to the same university and the authors of 34 papers belong to different universities. Ali Muhammad Moazeni and 7 other writers were the most prolific ones, with 4 published papers.  The content analysis of the papers shows that fictional literature, mysticism and Sufism consist a large part of the subjects. 28 papers, 10.40% of all, have been produced by journal's editorial board, which is an acceptable average. 4039 sources have been totally cited which is a 72.25% average for each paper and also an acceptable average. More than 14 years have passed from the publication of 56.30% (2274) of the sources used in papers. With 115 authors (42.75%), University of Tehran and Kharazmi University are the most prolific producers, which can be considered as one of journal's weak points. Three of the editorial staff are among the most prolific authors.

Discovering the cause of the aircraft accident is the major part of the aviation industry which has been act as the driving force of the research and development and is a reference to design & manufacturing deficiencies. In this research, considering the necessity of upgrading and updating the military aircraft accidents investigation model, the current model has been studied and its shortcomings are addressed. Afterwards, 12 efficient methods which were presented to investigate the accidents are introduced. It should be noted that there is no universal model to investigate the military aircraft accidents and it is based on the countries laws, regulations and joint military pacts. Therefore, considering the characteristics of the introduced efficient methods, a new model has been presented. In this new model, while eliminating defects and bugs of the current military aircraft accidents investigation model which only includes the accident cause discovery, investigations are focused on exploring and discovering how and why an accident occurs. Therefore, by finding the real root cause of the accident, similar accidents would be prevented in the future.

Some kinds of epilepsy are refractory to treatment with standard antiepileptic drugs. Several plant species are used in the treatment of convulsions. In this study we attempted to extract and evaluate the protective effect Peganum harmala on convulsion induced by strychnine in mice. After collection of Peganum harmala seeds and ground to obtain powder. The methanolic extract was prepared. Albino Swiss male mice were orally pretreated dose dependently (15, 30 and 45mg/kg) with Peganum harmala (Methanolic extract), for a period of 15 days, also a group of animals received phenytion (30 mg/kg i.p). After eight hours the animals were injected intraperitoneally single dose of strychnine 1.7 μg/kg. The convulsion was observed on strychnine treated animals. The convulsion was significantly decreased among those animals pretreated with phenytoin (p< 0.05). However, the protective effect of, Peganum harmala was evident at the dose of 45 mg/kg and the starting of convulsion time along with its duration were delayed in comparison to control group, the respiratory arrest time were also delayed. Increased survival rate were observed on Peganum harmala/phenytoin treated animals. The results obtained from the present study indicate that the Peganum harmala at the doses of 15 and 30 mg/kg were not effective against strychnine induced convulsion. However, Peganum harmala was effective at the dose of 45 mg/kg and its effect was comparable with phenytoin. It seems that the Peganum harmala seeds inhibits convulsion in mice by modulating the glycine and NMDA receptors. However, the exact mechanism Peganum harmala seeds on convulsion induced by strychnine remains elusive and needs further experimentation.