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Author(s): 

Fardian Rahim Fardian" target="_blank">Rahim Fardian Rahim Fardian | Keyhan Javad | Fardian Rahim

Issue Info: 
  • Year: 

    2022
  • Volume: 

    1
  • Issue: 

    68
  • Pages: 

    179-201
Measures: 
  • Citations: 

    0
  • Views: 

    100
  • Downloads: 

    0
Abstract: 

The purpose of this research is to investigate The factors affecting The formation of leading schools, so that it can be used in Iran's education. For this purpose, first, according to The research background and Theoretical foundations, a conceptual framework was presented in The field of The components of an efficient and progressive school. Due to The nature of The subject, this research is an applied and developmental research and its method is of a mixed type, and includes quantitative and qualitative methods. According to The obtained information, The statistical population is about 3000 people. The sample size is estimated to be 344 people using Morgan's table. Stratified sampling method was used for sampling in this research, and 84 managers and 260 teachers participated in this study. The tool of this research is a researcher-made questionnaire. To analyze The data and answer The research questions, The correlation coefficient test and factor analysis were used. The results of The research showed that The components of management and leadership, research factors, educational factors, human resources, budget and infrastructure, technology and equipment are The main components of The formation of leading schools, and The component of educational factors has The largest contribution.

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Author(s): 

Arash Ahmad Arash" target="_blank">Ahmad Arash Ahmad Arash | Arash Ahmad

Issue Info: 
  • Year: 

    2022
  • Volume: 

    1
  • Issue: 

    68
  • Pages: 

    295-312
Measures: 
  • Citations: 

    0
  • Views: 

    92
  • Downloads: 

    0
Abstract: 

This study explores The motivational components within teacher rating Systems and Their impact on professional growth motivation. Employing a Systematic review approach, it investigates texts pertaining to teacher rating Systems, motivation, and professional development literature. By examining various texts and research findings on teacher motivation, factors influencing teacher ratings based on general, specialized, and professional competencies, as well as experience, are identified. Drawing parallels with Herzberg's motivational Theory, this study provides recommendations to bolster teacher motivation and job satisfaction through improvements in The rating System.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

hadi asgari hadi asgari | asgari hadi

Issue Info: 
  • Year: 

    2022
  • Volume: 

    1
  • Issue: 

    68
  • Pages: 

    65-82
Measures: 
  • Citations: 

    0
  • Views: 

    85
  • Downloads: 

    0
Abstract: 

The purpose of The current research was to investigate The obstacles to The implementation of school-based management in Iran's educational System based on The interpretive structural modeling approach. The research method was a modeling study. The statistical population of The research was specifically The academic staff members of The university, 25 of whom were purposefully selected from The desired cases. The data collection tool was a researcher-made self-interactive questionnaire. In order to measure and evaluate The validity of The questionnaire, The criterion of content validity was used. The content validity of The questionnaire was 0.96. The data analysis was done with interpretive structural modeling method. The results of The research showed that 9 factors play a role as barriers to school-oriented management. Also, The results showed that financial obstacles (The cost of school-oriented management), socio-cultural obstacles and political obstacles (political focus on schools by The central government) as key independent variables have high influence power and low dependence. Also, The results showed that The lack of belief in The professional competence of school administrators, The lack of infrastructure facilities, The emphasis of upper management on The supervision and control of schools, and The lack of cooperation of local communities with school-based management as The linking variables with The greatest power of influence and The greatest power of dependence. and The centralism in The education System of The country and The lack of legal powers to school managers and staff as dependent variables have high dependency power and low influence power.

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Author(s): 

Seyed Mahdi Sajadi Seyed Mahdi Sajadi | Salehi Akbar | Sajadi Seyed Mahdi

Issue Info: 
  • Year: 

    2023
  • Volume: 

    2
  • Issue: 

    71
  • Pages: 

    139-152
Measures: 
  • Citations: 

    0
  • Views: 

    65
  • Downloads: 

    0
Abstract: 

current research is to critically analyze The discourse of world peace in The textbooks of The Iranian educational System based on The Theory of identification by L& M. For this purpose, The textbooks between The years 1357-1392 (primary period and first period high school) have been analyzed. This article has been done with The combined method of analyzing The discourse of Fairclough, L &M and focusing on The following questions: What was The status of The world peace discourse in The educational documents of this era? What subjects are These educational materials trying to create? What role have The dominant political discourses in this era played in shaping The identity of These subjects? The findings show that The discourse of world peace in educational books and documents has been rejected due to The demarcation between Islamic and non-Islamic, internal and external. Power processes have tried to create militant and vengeful subjects with a military identity. The factor of persuasion of The subjects is The axiomatization of The ideologies of The revolution with an Islamic nature. Also, The educational content by inducing specific defense ideologies has formed pacifist identities in all individual, interpersonal, social and international dimensions.

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Issue Info: 
  • Year: 

    2024
  • Volume: 

    13
  • Issue: 

    4
  • Pages: 

    1-20
Measures: 
  • Citations: 

    0
  • Views: 

    37
  • Downloads: 

    8
Abstract: 

The city's regeneration is one of The strategies that lead to urban deterioration and inefficient textures towards revitalization. Using Systems thinking on The subject of reinvention can lead to The identification of complex Systems that are considered effective in producing and reproducing worn-out textures. In this regard, this study was to benefit from a Systemic approach in identifying The The roots of The production and reproduction of historical/worn-out textures in Semnan city. The leading research is among The applied research, and in terms of information and data analysis, it uses The descriptive-analytical method. The tool for collecting information is also in documents and surveys. The statistical population of The research was 18 university professors, experts, and officials familiar with The urban fabric of Semnan, who were selected by The snowball method. In The end, using experts' opinions, 24 variables were selected as effective drivers of Semnan's production-reproduction System of worn tissue. MicMac software was used for structural-interpretive analysis of variables. The results show that The rules and regulations governing The regeneration of The studied area are The most important and effective factors. Also, The special ownership conditions governing barren, ruined, and ruined lands have caused The private sector to have no incentive to invest in this area and reproduce The existing conditions. With The continuation of The current process, The existing situation is reproduced. Breaking this round of The reproduction process requires a constructive look at The target neighborhoods from The city administration and government agencies, which can provide The basis for The presence of private sector investors in These neighborhoods

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Issue Info: 
  • Year: 

    2023
  • Volume: 

    53
  • Issue: 

    1
  • Pages: 

    69-79
Measures: 
  • Citations: 

    0
  • Views: 

    204
  • Downloads: 

    43
Abstract: 

In this paper, a novel risk-based, two-objective (technical and economical) optimal reactive power dispatch method in a wind-integrated power System is proposed which is more consistent with operational criteria.  The technical objective includes The minimization of The new voltage instability risk index. The economical objective includes cost minimization of reactive power generation and active power loss. The proposed voltage instability risk employs a hybrid possibilistic (Delphi-Fuzzy)-probabilistic approach that takes into consideration The operator’s experience, The wind speed and demand forecast uncertainties when quantifying The risk index. The decision variables are The reactive power resources of The System. To solve The problem, The modified multi-objective particle swarm optimization algorithm with sine and cosine acceleration coefficients is utilized. The method is implemented on The modified IEEE 30-bus System. The proposed method is compared with those in The previously published literature, and The results confirm that The proposed risk index is better at estimating The voltage instability risk of The System, especially in cases with severe impact and low probability. In addition, according to The simulation results compared to typical security-based planning, The proposed risk-based planning may increase The security and economy of The System due to better utilization of System resources.

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Issue Info: 
  • Year: 

    2022
  • Volume: 

    52
  • Issue: 

    1
  • Pages: 

    51-60
Measures: 
  • Citations: 

    0
  • Views: 

    136
  • Downloads: 

    36
Abstract: 

Non-cooperative intelligent control agents (ICAs) with dedicated cost functions, can lead The System to poor performance and in some cases, closed-loop instability. A robust solution to this challenge is to place The ICAs at The feedback Nash equilibrium point (FNEP) of The differential game between Them. This paper introduces The designation of a robust decentralized infinite horizon LQR control System based on The FNEP for a linear time-invariant System. For this purpose, two control strategies are defined. The first one is a centralized infinite horizon LQR (CIHLQR) problem (i.e. a supervisory problem), and The second one is a decentralized control problem (i.e. an infinite horizon linear-quadratic differential game). Then, while examining The optimal solution of each of The above strategies on The performance of The oTher, The necessary and sufficient conditions for The equivalence of The two problems are presented. In The absence of The conditions, by using The least-squares error criterion, an approximated CIHLQR controller is presented. It is shown that The Theorems could be extended from a two-agent control System to a multi-agent System. Finally, The results are evaluated using The simulation results of a Two-Area non-reheat power System.

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Writer: 

Issue Info: 
  • End Date: 

    1395
Measures: 
  • Citations: 

    0
  • Views: 

    388
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2025
  • Volume: 

    42
  • Issue: 

    77
  • Pages: 

    189-206
Measures: 
  • Citations: 

    0
  • Views: 

    12
  • Downloads: 

    0
Abstract: 

Harirud river with an international nature is shared between Afghanistan, Iran and Turkmenistan and currently There is no treaty among These states regarding The division of its water resources. In recent years, after The construction of The Doosti Dam by Iran and Turkmenistan, Afghanistan, as an upstream state is moving towards hydro-hegemonic policy in The region by building various dams which restrain and divert The water flow of this river in order to decrease The downstream countries’ water rights. On The oTher hand, due to The high importance of Harirud water resources for Iran, continuing this type of behavior by Afghanistan might cause conflicts and create security risks among These countries in The near future. Therefore, employing a descriptive-analytical approach, The study aims at examining The issue according to international legal documents in The field of sharing common water resources. Finally, The findings indicate that The best and most practical method for exploitation of Harirud water resources is based on The Theory of limited territorial sovereignty and implementation of The principle of equitable and reasonable utilization of common water resources by Afghanistan, without causing significant harm to downstream states.

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Issue Info: 
  • Year: 

    1390
  • Volume: 

    0
Measures: 
  • Views: 

    890
  • Downloads: 

    0
Abstract: 

مقدمه: امروزه پیوندهای اتولوگ بافت چربی به میزان زیادی در درمان های کلینیکی به کار می رود و بنابراین بررسی Viability سلول های چربی موجود در این بافت ها برای استفاده آن ها در آینده امری ضروری به نظر می رسد. Viability سلول های چربی به عوامل مختلفی همچون سانتریفیوژ (زمان و دور) و نحوه فریز کردن این بافت بستگی دارد. در این مطالعه ما اثر دورهای مختلف سانتریفیوژ و همچنین فریز بافت چربی در دمای 20- و دمای 196- را بر Viability سلول های این بافت مورد بررسی قرار دادیم.روش ها: بافت چربی از بیمارانی که تحت عمل لیپوساکشن قرار گرفته بودند به دست آمد و نمونه ها تحت شرایط استریل به آزمایشگاه منتقل شد. نمونه های چربی 3 مرتبه با PBS حاوی آنتی بیوتیک شستشو داده شد و لایه میانی آن که حاوی بیشترین سلول های چربی بود برای ادامه مطالعات برداشته شد. برای بررسی اثر دورهای مختلف سانتریفیوژ نمونه ها در دورهای 1500، 3000 و 4500 به مدت 1، 3 و 5 دقیقه سانتریفیوژ شدند. همچنین برای بررسی اثرات فریزهای مختلف، نمونه های چربی در دمای 20-، 196- و دمای معمولی آزمایشگاه نگهداری شده و سپس Viability سلول ها با رنگ آمیزی تریپان بلو و تست MTT مورد بررسی قرار گرفت.نتایج: سانتریفیوز به مدت 5 دقیقه در دور 4500 بر درصد زنده ماندن سلول های چربی تاثیرگذار بود اما سایر دورها و زمان ها تاثیر چندانی بر سلول ها نداشت. همچنین فریز سلول ها در دمای 196- (نیتروژن مایع) تا حد معناداری از مرگ سلول های چربی در مقاسیه با فریز در دمای 20- کاست.

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