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Issue Info: 
  • Year: 

    2022
  • Volume: 

    1
  • Issue: 

    68
  • Pages: 

    109-128
Measures: 
  • Citations: 

    0
  • Views: 

    91
  • Downloads: 

    0
Abstract: 

Knowing the components of economic education provides the dynamic background of education in this field. The aim of the current research is to investigate the indicators and components of the economic education curriculum. The approach of the current research is qualitative and its method is research synthesis. The research community is all the articles (211 articles) that have been presented from 1390 to 1401 AD and from 2010 to 2022 AD regarding economic education in curricula. The sample of the research is 32 articles, which were selected based on thematic monitoring, theoretical data saturation, and purposefully. The research data were collected from the qualitative analysis of the studied articles. By analyzing the data, the dimensions of vitality in the curriculum of the elementary school in 4 factors and 55 categories including the dimension of individual factors (including indicators and components related to personality characteristics); The dimension of culture and economic ethics (economic fields in the society); The dimension of economic concepts and knowledge (indices in economic education) and the dimension of collective and communication concepts (communication and interaction indicators in education) were classified. Economic education is dependent on internal and external components in educational systems, which requires macro-planning in this field.

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Issue Info: 
  • Year: 

    2022
  • Volume: 

    12
  • Issue: 

    47
  • Pages: 

    7-32
Measures: 
  • Citations: 

    0
  • Views: 

    178
  • Downloads: 

    39
Abstract: 

Nowadays, the fundamental role of having a purpose for life in physical and mental health has been confirmed. According to victor frankl, presence of a purpose in life gives life a meaning and increases resilience against pains and traumas. The importance of the purpose in life construct reveals the need for a reliable and valid tool to measure it. Crumbaugh and Maholick's purpose in life questionnaire is the first and one of the most applied tools for the assessment of life's purposefulness. The aim of this research is to determine the factor structure of purpose in life questionnaire. The questionnaire was administered on 206 students who were selected through random stratified sampling at Ferdowsi University of Mashhad. Exploratory factor analysis showed that there are two factors "comprehension" and "purpose" and this finding were confirmed by confirmatory factor analysis. Altogether results of this research showed factor validity of the purpose in life questionnaire with a two factor pattern

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Issue Info: 
  • Year: 

    1387
  • Volume: 

    1
Measures: 
  • Views: 

    1289
  • Downloads: 

    0
Abstract: 

متان یکی از منابع اصلی انرژی و از اجزای اصلی گاز طبیعی است. تبدیل متان به عنوان یک گاز گلخانه ای به synthesis-gas (H2CO) و هیدروکربن های با ارزش بالاتر متان را تبدیل به یک محصول ارزشمند و بدون اثر گلخانه ای می کند. همچنین syngas تولید شده می تواند به سوخت های مایع و ترکیبات شیمیایی با ارزش توسط فرایند Fischer-Tropsch تبدیل شود. بهینه سازی متان با اکسیژن به syngas یکی از روش های این تبدیل است. در بین روشهای موجود یکی از روش های مطلوب، تبدیل پلاسمایی متان است که در آن دما بر خلاف روش های کاتالیستی بالا نیست. در این مطالعه، یک راکتور پلاسمایی به جای روش های کاتالیستی رایج برای تولید syngas طراحی و آزمایش می شود. راکتور پلاسمایی شامل منبع پلاسمای مایکروویو، لوله گازی، سرد کننده و قسمت نمونه گیری برای تولید موثر syngas از متان، اکسیژن و آرگون می باشد. آزمایش ها توسط یک سیستم غیر کاتالیستی و تحت فشار اتمسفر انجام می شود. توان منبع پلاسمای مایکروویو در گستره 100 تا 300 وات ثابت نگه داشته می شود. پس از آن که گاز تولید شده از قسمت سرد کننده عبور می کند، مخلوط گاز سنتز شده توسط سرنگ گازی، GC “Gas Cromatography” و یک سل گازی برای آنالیز FT-IR”Fourier Transform infrared Spectroscopy” جمع آوری می گردد. بهینه کردن شرایط انجام واکنش به کمک تغییر فشار جزیی گازهای ورودی، زمان انجام واکنش گازها و تغییر توان منبع مایکروویو مورد بررسی قرار می گیرد.

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Issue Info: 
  • Year: 

    2021
  • Volume: 

    12
  • Issue: 

    2
  • Pages: 

    33-74
Measures: 
  • Citations: 

    0
  • Views: 

    218
  • Downloads: 

    28
Abstract: 

Abstract: This study sought to answer the question of what are the causes of marital infidelity in the Iranian family. To Answer the Research Question, Qualitative Meta-synthesis (QMS) Method Were Used. Then, 78 Scientific Papers Which Were Considered Marital Infidelity in Iran were identified and were Analyzed. The results showed that the factors of infidelity in Iran can be classified into 9 main categories, including: 1. Social factors, 2. Psychological factors, 3. Cultural factors, 4. Family factors, 5. Personal factors, 6. Relational factors, 7. Economic factors, 8. Media factors, 9. Contextual factors. Each of the main Categories is divided into Different Subcategories. The Social Factors of infidelity were including “Infidelity Opportunities”, “Friend groups” and “Environmental Conditions”. Psychological Factors of Infidelity Were Including “Personality Type”, “Attachment Styles”, and their “Love Schema”. Cultural Factors have Pointed to “Change in Beliefs and values” and “the level of Religious Education” of people. The Family Factors were including “Inappropriate Marriage”, “Family Conflict” and “the Kind of Family Background of people”. The Personal Factors are “Sexual Dissatisfaction”, “Emotional Dissatisfaction”, “the Feeling of Loneliness”, “the Spouse Unavailability”, “Weakness in Controlling Spouse”, “Domestic Violence”, “Revenge of the Spouse” and “the Role of the Third Person in the Relationship”. The Economic factors are including “the Economic Status of the person”, “the Role of Economic Problems”, “the motivation of entering into infidelity under the Pretext of Job promotion”. The media Factors Were Emphasized on “weakening Iranian Values through Social Media Networks and Foreign Satellite Channels” and “Producing of New Needs by Media”. Finally, the Contextual Factors were including the Role of “Age” and “Gender” in the Infidelity. Findings showed that Infidelity Occurred in the group of men and youth in Iran, more than other Social Groups.

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    18
Measures: 
  • Views: 

    155
  • Downloads: 

    52
Abstract: 

BACKGROUND: MESOPOROUS NON-SILICEOUS OXIDES HAVE ATTRACTED GREAT INTEREST DUE TO THEIR UNIQUE PROPERTIES SUCH AS HIGH SURFACE AREAS, HIGHLY ORDERED CRYSTALLINE FRAMEWORK AND HIGH THERMAL STABILITY [1] AND THEIR POTENTIAL APPLICATIONS IN ENVIRONMENTAL CATALYSIS SUCH AS CO OXIDATION AND ELIMINATION OF ORGANIC POLLUTANTS AND OTHER APPLICATIONS IN BATTERIES, SENSORS, ENERGY CONVERSION AND STORAGE [2]...

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Author(s): 

Ghaderzadeh Omid

Issue Info: 
  • Year: 

    2022
  • Volume: 

    13
  • Issue: 

    1
  • Pages: 

    5-42
Measures: 
  • Citations: 

    0
  • Views: 

    124
  • Downloads: 

    9
Abstract: 

Considering the importance of solidarity as a theoretical and political structure and its connection with social harmony, acceptability and political legitimacy, the present research has conceptualized and formulated the problem of solidarity in the context of Iran's multi-ethnic society through the mediation of existing studies. . In the current research, the hybrid method has been used. The sample and statistical population of the research includes selected qualitative studies that have investigated the issue of solidarity and its dimensions in Iran from different aspects and perspectives in the period from 1372 to 1398. After searching in different databases, 500 related articles, books and research reports were identified and finally 54 sources were selected to perform the meta-combination method. Based on the synthesis of studies, solidarity in the multi-ethnic society of Iran has found a problematic situation. The results of the research confirm that the coordinates of solidarity in Iranian society are based on structural contexts and conditions. The main field in which the issue of solidarity in Iran should be established is the acceptance of a reality called "reliability and stability of cultural diversity". Based on the meta-combination of studies, the coordinates of solidarity in Iran's multi-ethnic society, due to "intercultural affinities", "disruption and non-inclusion in ethnic policies", "instability and imbalance of development", "inefficiency of ethnic political management" and "identification disorder". In the meantime, "cultural globalization", "taking role models from ethnic elites", "geopolitics of ethnic areas and transnational interventions" and "ethnic extension" are considered as intervening conditions. Despite the fact that ethnic and religious diversity is recognized as a central sign in the constitution, with this definition, political agents have sometimes resorted to strategies that social suffering and extroversion has formed in ethnic communities.

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Journal: 

VIRTUAL

Issue Info: 
  • Year: 

    621
  • Volume: 

    1
  • Issue: 

    1
  • Pages: 

    287-328
Measures: 
  • Citations: 

    1
  • Views: 

    251
  • 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: 

    2013
  • Volume: 

    16
Measures: 
  • Views: 

    126
  • Downloads: 

    57
Keywords: 
Abstract: 

ONE-DIMENSIONAL MANGANESE DIOXIDE (MNO2) NANOstructureS SUCH AS NANORODS, NANOWIRES, AND NANOFIBERS HAVE GENERATED INTENSE RESEARCH INTERESTS OVER THE PAST RECENT YEARS DUE TO THEIR SUPERIOR OPTICAL, ELECTRICAL, CATALYTIC, MAGNETIC AND ELECTROCHEMICAL PROPERTIES [1]. SUCH MANGANESE DIOXIDE NANOstructureS ARE OF CONSIDERABLE IMPORTANCE IN TECHNOLOGICAL APPLICATIONS AND HAVE BEEN INTENSIVELY INVESTIGATED AS PROMISING ELECTRODE MATERIALS IN PRIMARY/SECONDARY BATTERIES AND ELECTROCHEMICAL CAPACITORS DUE TO THEIR EXCELLENT ELECTROCHEMICAL PROPERTIES, LOW-COST, ENVIRONMENTALLY BENIGN, AND EASE OF PREPARATION [2]. VARIOUS APPROACHES HAVE BEEN USED TO FABRICATE MANGANESE DIOXIDE, SUCH AS SELF-REACTING MICROEMULSION, PRECIPITATION, ROOM-TEMPERATURE SOLID REACTION, SONOCHEMICAL AND HYDROTHERMAL METHODS [3]. THE HYDROTHERMAL METHOD IS A POWERFUL synthesis APPROACH FOR SYNTHESIZING VARIOUS FORMS OF MANGANESE OXIDES AND AFFORDS VARIOUS ADVANTAGEOUS FEATURES INCLUDING THE USE OF MILD synthesis. IN THIS WORK, NANO-SIZED MANGANESE OXIDE WAS SYNTHESIZED USING HNO3 AND KMNO4 IN THE PRESENCE OF POLYETHYLENE GLYCOL AS A SURFACTANT UNDER HYDROTHERMAL CONDITION. X-RAY DIFFRACTION (XRD) AND SCANNING ELECTRON MICROSCOPE (SEM) WERE USED TO CHARACTERIZE THE structure AND MORPHOLOGY OF SYNTHESIZED POWDER.

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

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Issue Info: 
  • Year: 

    1394
  • Volume: 

    1
Measures: 
  • Views: 

    455
  • Downloads: 

    0
Abstract: 

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

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Issue Info: 
  • Year: 

    2014
  • Volume: 

    8
Measures: 
  • Views: 

    108
  • Downloads: 

    94
Abstract: 

IN THIS STUDY, CO@RU/G-AL2O3 CORE SHELL CATALYST WAS SUCCESSFULLY SYNTHESIZED VIA SURFACE DISPLACEMENT REACTION. THIS ROUTE WAS INCLUDING REDUCTION OF CO CORE BY NABH4 ON THE SUPPORT AND THEN SUBSTITUTION OF CO SPECIES WITH RU. THE CATALYSTS WERE CHARACTERIZED WITH TECHNIQUES X-RAY DIFFRACTION (XRD), HIGH RESOLUTION TRANSMISSION ELECTRON MICROSCOPY (HRTEM), TEMPERATURE PROGRAMMED REDUCTION (TPR). USING CO@RU/G-AL2O3 CATALYST SHOWED THE REMARKABLE CO CONVERSION TOWARDS FISHER-TROPSCH synthesis (FTS) IN COMPARISON WITH CO/Γ-AL2O3. THIS INDICATED THE SPECIAL CORE-SHELL structure FORMATION. CO@RU/G-AL2O3 CATALYST EXHIBITED EXCELLENT ABILITIES IN THE CASES OF INCREASING FORMATION OF LONG-CHAIN HYDROCARBONS AND SUPPRESSING SELECTIVITY TO LIGHTER HYDROCARBONS.

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

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