seyed hossein mousavi
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زمینه و هدف
از آن جا که اطفای حریق در ساختمان های بلندمرتبه به تجهیزات و تخصص ویژه ای نیاز دارد و با ریسک های فراوانی برای ساکنان و امدادرسانان همراه است؛ لذا، این عملیات به یکی از معضلات ایمنی در کلان شهرها تبدیل شده است. از این رو، این پژوهش با هدف شناسایی و رتبه بندی عوامل حیاتی موثر بر ایمنی آتش سوزی در ساختمان های بلندمرتبه شهر کرج انجام شد.
مواد و روش هادر اجرای این پژوهش توصیفی-کاربردی، پس از تعیین معیارهای اصلی تحقیق شامل: "مقررات آتش نشانی"، "آموزش ایمنی حریق"، "سیاست ها و مدیریت تجهیزات"، "بررسی حوادث پیشین"، "نگرش پیمانکاران در طراحی و ساخت" و همچنین "سرعت عملیات نجات"، نسبت به طراحی پرسش نامه و توزیع آن بین 10 نفر از آتش نشانان با سابقه شهر کرج در حوزه ایمنی حریق و ساختمان اقدام، و اولویت بندی و وزن دهی نهایی معیارها با استفاده از تلفیق روش های ANP-DEMATEL در نرم افزار سوپر دسیژین انجام شد.
یافته هانتایج نشان داد که معیار "سرعت عملیات نجات" با وزن نهائی برابر با 0/222 اولویت اول را به خود اختصاص داده است. از طرفی، معیار "سیاست ها و مدیریت تجهیزات" به عنوان تاثیرگذارترین معیار، از بیش ترین تعامل با سایر معیارها برخوردار بود. همچنین، معیار "نگرش پیمانکاران در طراحی و ساخت" به عنوان تاثیرپذیرترین معیار شناخته شد. این در حالی است که زیرمعیار "عدم استفاده از مصالح بی کیفیت و ارزان با هدف سوددهی بیش تر" با وزن نهائی برابر با0/061 از اولویت اول در بین زیرمعیارها برخوردار بود.
نتیجه گیریبه منظور بالارفتن سرعت عملیات اطفای حریق بهتر است ایستگاه های آتش نشانی به تعداد کافی در بخش های مختلف شهر مستقر باشند و در عین حال مسیرهای ویژه ای برای تردد در مراکز شلوغ شهری برای ماشین آلات آتش نشانی درنظر گرفته شود. ضمن آن که لازم است تجهیزات و فناوری های به روز دنیا در خصوص اطفای حریق ساختمان های بلندمرتبه مورد استفاده قرار گیرند و سرمایه گذاری کافی در این خصوص انجام پذیرد. در عین حال باید نظارت کافی در مراحل ساخت و ساز اعم از طراحی و استفاده از مصالح مقاوم در برابر حریق اعمال شود.
کلید واژگان: ایمنی حریق, ساختمان بلندمرتبه, سرعت عملیات نجات, تصمیم گیری چندمعیاره, ایرانBackgroundSince firefighting in high-rise buildings requires special equipment and expertise and is associated with many risks for residents and rescuers; the firefighting of these buildings has become one of the safety problems in megacities. Therefore, this study was conducted to identifying and ranking of critical factors affecting on fire safety in high-rise buildings in city of Karaj using the ANP-DEMATEL integrated approach.
MethodsIn this descriptive study, six criteria including: 'firefighting regulations', 'fire safety training', 'policies and equipments management', 'review of previous incidents', 'attitudes of contractors in design and construction', as well as the 'speed of rescue operations' and 32 sub-criterias were identified from the similar studies and their screened using the Delphi technique. Then the criteria and sub-criteria of each criterion were subjected to pair wise comparisons and weighting. The internal relationships between the criteria were determined using DEMATEL technique; also, the final prioritization and weighting of the results were done using ANP and DEMATEL via the Super Decisions software. In so doing, 10 experts of Karaj Fire Protection Organization were selected in a non-probabilistic way to respond.
ResultsBased on the results obtained, 'speed of rescue operations' criterion with a final weight of 0.222 had assigned the first priority among the others. On the other hand, 'policies and equipments management' criterion, as the most influential criterion, has had the most interaction with other criterias. Also, the 'attitudes of contractors in design and construction' criterion was recognized as the most effective criterion. This is despite the fact that 'not using low-quality and cheap materials with the aim of more profit' sub-criterion with a final weight of 0.061 had the first priority among the sub-criterias.
ConclusionIn conclusion, it can be acknowledged that in order to increase the speed of operations, it is better to have enough fire stations in different parts of the city, and at the same time, special routes for traffic in crowded city centers should be considered for fire engines. At the same time, it is necessary to use the latest equipment and technologies in the world regarding the fire extinguishing of high-rise buildings and make sufficient investment in this regard. At the same time, there should be sufficient supervision in the construction stages, including the design and use of fire-resistant materials.
Keywords: Fire Safety, High-Rise Buildings, Speed Of Rescue Operations, MCDM Approach, Iran -
ایران در کمربند خشک کره زمین واقع است و میانگین بارش در آن یک سوم میانگین جهانی است لذا مدیریت صحیح منابع آب به ویژه در بخش کشاورزی ضرورت دارد. به این منظور، در سال 1401، تحقیقی با هدف بررسی اثر چند ماده اصلاح کننده رطوبت خاک، در منطقه خرم آباد، در مزارع تحقیقاتی دانشگاه لرستان، به صورت فاکتوریل با طرح بلوک کامل تصادفی در سه تکرار انجام شد که فاکتور اول تیمار آب آبیاری در چهار سطح شامل 100%، 80%، 60% و 40% نیاز آبی گیاه و فاکتور دوم مواد اصلاح کننده رطوبت خاک شامل ورمی کمپوست به میزان شش تن در هکتار، بیوچار 1/5 تن در هکتار، سوپرجاذب 75 کیلوگرم در هکتار، مالچ گیاهی 7/5 تن در هکتار و تیمار شاهد در نظر گرفته شد. سیستم آبیاری قطره ای نواری برای آبیاری استفاده گردید. نتایج تحقیق نشان داد که بیشترین میزان عملکرد تر، عملکرد بیولوژیک و ارتفاع بوته در تیمار 100% نیاز آبی و کود ورمی کمپوست مشاهده گردید که به ترتیب برابر 71/126 و 27/46 تن در هکتار و 2/35 متر به دست آمد و بیشترین مقدار بهره وری تر و بهره وری بیولوژیک در سطح احتمال 5% از آن تیمار 80% نیاز آبی و کود ورمی کمپوست (شش تن در هکتار) بود که به ترتیب برابر 16/79 و 5/9 کیلوگرم در مترمکعب آب آبیاری محاسبه شد. به طورکلی ورمی کمپوست و بیوچار نیز سبب افزایش عملکرد تر و بیولوژیک، ارتفاع و بهره وری آب ذرت شد. مالچ در تیمار های 100% و 80% نیاز آبی، عملکرد بهتری داشت (افزایش 12/7% و 14/5% در عملکرد تر نسبت به تیمار شاهد) ولی با افزایش تنش آبی به 60% و 40% نیاز آبی، عملکرد تیمار های حاوی مالچ خوب نبود (کاهش 3/5% و1% در عملکرد تر نسبت به تیمار شاهد). سوپرجاذب نیز در تیمارهای 100%، 80% و 60% نیاز آبی موجب کاهش عملکرد تر ذرت شد (به ترتیب کاهش 9/3%، 7/2% و 3% در عملکرد تر نسبت به تیمار شاهد)، اما در تیمار 40% نیاز آبی، نتیجه بهتری را رقم زد (افزایش 7/6% در عملکرد تر نسبت به تیمار شاهد). از این رو، در منطقه خرم آباد کاربرد شش تن در هکتار ورمی کمپوست و 80% نیاز آبی به صورت آبیاری قطره ای تیپ(TAPE) برای بالاتر بردن تولید ذرت علوفه ای، هم زمان با صرفه جویی 20% مصرف آب توصیه می گردد.کلید واژگان: سوپرجاذب, کود های آلی, مالچ, مدیریت آب در مزرعهIran is located in the dry belt of the earth and its rainfall is one third of the global average. Therefore, proper management of water resources is necessary, especially in the agricultural sector. For this purpose, in 2022, a research was conducted with the aim of investigating the effect of several soil amendments in Khorram Abad region, in the research farm of Lorestan University. The experiment was factorial with a randomized complete block design in three replications. Treatments were irrigation water at 4 levels of I1=100%, I2=80%, I3=60%, and I4=40% of the water requirement and different soil moisture amendments including vermicompost (C) 6 t/ha, biochar (B) 1.5 t/ha, superabsorbent (S) 63 kg/ha, and organic mulch (M) 7.5 t/ha and the control treatment (I). Results showed that the highest productivity, biological yield, and plant height were related to I1-C treatment, which were 126.71 t/ha, 46.27 t/ha and 2.35 meters, respectively. The highest water productivity and biological productivity at the probability level of 5% was I2-C, which was calculated as 16.79 kg of fresh fodder/m3 of irrigation water and 5.9 kg of dry matter/m3 water. In general, vermicompost and biochar also increased the fresh and biological yield, height, and water productivity of corn. The use of mulch in 100% and 80% treatments had better effect, but with the increase in water stress (i.e. I3 and I4), effect of mulch decreased (5.3% and 1% relative to the control). Superabsorbent in I100, I80, I60 treatments showed lower effect (9.3%,7.2%, 3% less fresh weight than the control, respectively). However, with increasing stress, I4 had better results (7.6% higher fresh yield than the control). Therefore, in Khorram Abad region, the amount of 6 t/ha of vermicompost and 80% of the water requirement applied by drip tape irrigation for fodder corn is recommended to increase the production rate while saving 20% of water consumption.Keywords: super absorbent, Organic fertilizers, Mulch, Farm water management
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به منظور بررسی اثرات کم آبیاری و مالچ آلی بر روی عملکرد تر، عملکرد خشک، ارتفاع بوته، بهره وری عملکرد تر، بهره وری عملکرد خشک و سطح برگ ذرت علوفه ای (SC. 704) در منطقه خرم آباد، تحقیقی در قالب آزمایش فاکتوریل با طرح پایه بلوک های کامل تصادفی، در سه تکرار انجام شد. فاکتور اول آزمایش شامل چهار سطح 100، 80، 60 و 40 درصد نیاز آبی گیاه و فاکتور دوم شامل سه سطح مالچ آلی (بدون مالچ (شاهد)، 5/7 تن در هکتار و 15 تن در هکتار) درنظر گرفته شد. در این تحقیق، سیستم آبیاری قطره ای نواری (Tape) به کار برده شد و برای تعیین نیازآبی گیاه از تشت تبخیر کلاس A استفاده گردید. نتایج نشان داد که اثرات متقابل کم آبیاری و مالچ آلی درسطح احتمال 5% معنی دار است. بیشترین میزان عملکرد تر (05/99 تن در هکتار) ، عملکرد خشک (15/31 تن در هکتار)، ارتفاع بوته (38/2متر) و سطح برگ (7511 سانتی متر مربع) در تیمار 100% نیاز آبی و میزان مالچ 15 تن در هکتار مشاهده گردید که نسبت به تیمار شاهد به ترتیب 7/24 % ، 03/18 % ، 8/5 % و 38/48 % افزایش داشتند. بیشترین میزان بهره وری عملکرد تر و عملکرد خشک به ترتیب 56/14 و 75/4 کیلوگرم به ازای یک متر مکعب آب حاصل گردید که در تیمار 80% نیاز آبی و مالچ 15 تن در هکتار به دست آمد. کمترین میزان بهره وری عملکرد تر و عملکرد خشک نیز به ترتیب 09/10 و 35/3 کیلوگرم به ازای یک متر مکعب آب بود که در تیمار 100% نیاز آبی و بدون مالچ به حاصل شد. بناراین، در این منطقه آبیاری بر اساس 80 درصد نیاز آبی و استفاده از مالچ به میزان 15 تن در هکتار باعث بهبود عملکرد تولید ذرت علوفه ای می گردد.کلید واژگان: بهره وری آب, ذرت علوفه ای, مالچ, آبیاری قطره ای نواریIn order to investigate the effects of deficit irrigation and organic mulch on wet matter, dry matter, plant height, wet yield productivity, dry yield productivity and leaf area of corn forage (SC. 704) in Khorramabad region, an experiment based on the factorial experiment with a basic design of randomized complete blocks with three replications was conducted. The first factor of the experiment consisted of four levels of irrigation (100, 80, 60 and 40% of water requirements) and the second factor included three levels of organic mulch (no mulch (control), using 7.5 ton/hectare and 15 ton/hectare mulch). In this research, drip irrigation system (Tape) was applied and class A evaporation pan was used to determine the water requirement of the plant. The results showed that the mutual effects of deficit irrigation and organic mulch were significant at the 5% probability level. The maximum amount of wet matter (99.05 ton/ha), dry matter (31.15 ton/ha), plant height (2.38 m) and leaf area (7511cm2) were observed in the treatment of 100% water requirement and using mulch (15 ton/ha) which increased by 24.7%, 18.03%, 5.8% and 48.38% respectively compared to the control treatment. The maximum amount of water productivity for wet and dry matters were 14.56 and 4.57 kg/m3 which were obtained in the treatment of 80% water requirement and using mulch (15 ton/ha). The minimum amount of water productivity for wet and dry matters were 10.09 and 3.35 kg/m3 which were obtained in the treatment of 100% water requirement without using mulch. Thus, in this region, irrigation based on 80% water requirement and using mulch (15 ton/ha) may cause improvement in corn forage yield.Keywords: Water Productivity, fodder corn, Mulch, tape drip irrigation
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اندازه گیری میزان مواد نگهدارنده در غذا به دلیل پیامدهای بالقوه آنها برای سلامتی بسیار مهم است. بنابراین، توسعه یک روش تحلیلی قابل اعتماد و معتبر برای پایش ضروری است. این مطالعه بر اعتبار سنجی یک رویکرد تحلیلی ساده، حساس و دقیق با استفاده از HPLC-DAD برای ارزیابی همزمان بنزوات سدیم و سوربات پتاسیم تمرکز دارد. فرآیند اعتبار سنجی منجر به نتایج استثنایی شد که خطی بودن قوی (R2 > 0.999)، دقت (RSD < 5٪)، و صحت (مقادیر بازیابی از 90.77٪ تا 100.55٪) را نشان داد. علاوه بر این، مقادیرحد تشخیص و حد اندازه گیری این روش پائین می باشد (به ترتیب 0.8 و 2.65 میلی گرم در لیتر برای بنزوات سدیم، و 0.14 و 0.47 میلی گرم در لیتر برای سوربات پتاسیم). اثربخشی روش اعتبار بخشی شده برروی ماتریس های مختلف غذایی با تجزیه و تحلیل 110 نمونه سالاد اولویه، محصولات لبنی و سس کچاپ از مشهد، ایران نشان داده شد. مقایسه نتایج با استانداردهای ملی ایران نشان داد که غلظت مواد نگهدارنده در اکثر نمونه ها در محدوده قابل قبول تعیین شده توسط مقررات ایران است..
کلید واژگان: HPLC-DAD, مواد نگهدارنده, اعتبار بخشی روش, مواد غذایی فرآوری شدهMeasuring preservative concentrations in food is crucial due to their potential health implications. Therefore, it is necessary to develop a reliable and validated analytical method for monitoring. This study focuses on the validation of a simple, sensitive and precise analytical approach using HPLC-DAD to concurrently assess sodium benzoate and potassium sorbate. The validation process resulted in exceptional outcomes, demonstrating strong linearity (R2 > 0.999), precision (RSD < 5%), and accuracy (recovery values ranging from 90.77% to 100.55%). Additionally, the method exhibited low limits of detection and quantification (0.8 and 2.65 mg L-1 for sodium benzoate, and 0.14 and 0.47 mg L-1 for potassium sorbate, respectively). The effectiveness of the validated method on different food metrics was shown by analyzing 110 samples of Olivier salad, dairy products and ketchup sauce from Mashhad, Iran. Comparison of the results with Iran's national standards revealed that the preservative concentrations in most samples were within the acceptable limits set by Iranian regulations.
Keywords: HPLC-DAD, Preservatives, Method validation, Food processed -
Background
Considering the significant increase in apoptosis in the elderly, which is related to cardiovascular diseases, cancer, etc. The purpose of this research was to investigate the effect of eight weeks of aerobic exercise on some factors of apoptosis in elderly men was investigated.
Materials and MethodsThis research was conducted using a semi-experimental method with 30 healthy elderly men aged 60 to 75 years. who voluntarily participated in this research project and were randomly divided into two experimental (15 people) and control (15 people) groups. The experimental group participated in aerobic exercises for 8 weeks (three sessions of 1 hour per week) based on the special recommendations of the American College of Sports Medicine (ACSM) for the elderly. The control group did not have any physical activity during this period. Serum caspase-8, P53 and IGF-1 were measured by ELISA method. Dependent t-test and independent t-test were used to check the intra-group and inter-group differences of variables. Data analysis was done using SPSS version 20 software and the significance level was considered p≤0.05 in all steps.
ResultsThe results showed that eight weeks of aerobic exercise increased the serum levels of caspase 8(P=0.0001) and decreased the serum levels of P53(P=0.0001) and IGF-1(insulin-like growth factor) (P=0.0001).
ConclusionAccording to the findings of the present research, it seems that eight weeks of aerobic exercise significantly increases the serum levels of caspase 8 and decreases the serum levels of P53 and IGF-1 in elderly men. According to these results, more research is needed in this field.
Keywords: apoptosis, aerobic exercise, elderly, insulin-like growth factor-1, caspase-8 -
BACKGROUND AND AIM
Earthquake is a natural disaster severely affecting the societies’ health, hygiene, and welfare as such the most effective method to respond to its damages is to develop a readiness plan. This study aimed to discover thematic patterns and co‑author relationships extracted from relevant publications to plan an earthquake response.
MATERIALS AND METHODSThis descriptive–analytical study adopted the scientometric approach and used word co‑occurrence and social network analysis. The published articles indexed in PubMed were retrieved from 1970 to 2021 using a combination of keywords “earthquake and response.” The data were analyzed in VOSviewer, UCINET, and NetDraw software.
RESULTSThe following six thematic clusters with a social map were extracted: Initial response of the healthcare system, response to probabilistic risks after the hazard, response to mental health and community resilience, response to public health, response to post‑traumatic stress disorders, and staff’s response to the needs assessment and continuity of diagnostic treatment services. Moreover, social network analysis revealed the great impact of Japanese and Chinese authors and institutes.
CONCLUSIONThe present study detected many gaps in the literature on earthquake response, which can contribute to developing a general framework to prepare integrated healthcare earthquake response plans to promote the performance of this system.
Keywords: Co‑authorship network, co‑word analysis, earthquake, narrative approach, response plan -
BACKGROUNDS
Due to the severity of the earthquake, it may need immediate treatment and transfer of the injured people to advanced medical centers, as well as dispatch of the expert team and specialized health equipment to the accident‑affected area. Aerial emergency is an important responsibility of the health care system in this situation. The study aimed to extract the prehospital emergency challenges of Iran aerial operations emergency in response to the earthquake.
MATERIALS AND METHODSThe study was qualitative content analysis with conventional approach. Sampling was done in a purposive method and data were collected through semi‑structured interview. The panel involved consists of 26 health professionals in medical emergencies. Recorded interviews were transcribed into written and then conventional content analysis was used to derive coding categories directly from the text data.
RESULTSContent analysis is provided 97 initial codes, 20 subcategories and 4 main categories including challenges of “response assessment,” “support,” ”pre‑hospital staff‑management,” and “response operation,” respectively.
CONCLUSIONSThe results showed that the necessity to assess the affected area, staffing, and management actions, including integrated operations command and the development of a dedicated response plan, as well as the use of strategies inter‑organizational coordination in the response phase to earthquake. This study also emphasized that providing standard equipment, support actions, and strengthening communication infrastructure, and updating the aerial emergency system should be considered as one of the priorities of the emergency organization of Iran to provide a desired response to the earthquake.
Keywords: Aerial emergency, challenges, disasters, earthquake, Iran -
طیور مانند بسیاری از حیوانات از آنزیم ها برای هضم غذا استفاده می کنند. آنزیم ها مهمترین مواد افزودنی در صنعت تولید خوراک حیوانی محسوب شده و موجب بهبود هضم غذا می شوند. از سوی دیگر، پیش تیمار خوراک طیور با آنزیم زایلاناز موجب بالا رفتن ارزش غذایی و افزایش هضم غذا در سیستم گوارش حیوان می شود. در این مطالعه با استفاده از روش های محاسباتی بیوانفورماتیکی از داده های متاژنومی شکمبه گاو یک ژن مقاوم به حرارت زایلاناز با استفاده از نرم افزار TAXyl شناسایی و PersiXyn9 نامگذاری شد و به منظور تعیین کارکرد آنزیمی تحت بررسی های آزمایشگاهی قرار گرفت. ژن زایلاناز موردنظر توسط پرایمرهای اختصاصی از دی.ان.ای متاژنومی جداسازی و در وکتور بیانی مناسب کلون شد و سپس بیان و خالص سازی آنزیم مذکور انجام شد. بررسی پارامترهای بیوشیمیایی در خصوص این آنزیم نشان داد که بهینه فعالیت آن در دمای °C50 بوده و از طرفی pH بهینه فعالیت آن نیز 6 است. شاخص های بیوشیمیایی Km و Vmax برای این آنزیم به ترتیب برابر 1/22mg/ml و 206/78μmol min-1 mg-1 محاسبه شد. تصاویر مربوط به میکروسکوپ الکترونی روبشی (SEM) از فعالیت این آنزیم بر روی خوراک طیور در دمای °C50 کارایی بالای این آنزیم را به عنوان افزودنی در صنعت خوراک طیور نشان داد.
کلید واژگان: متاژنوم, زایلاناز, خوراک طیور, هیدرولیزPoultry, like many animals, uses enzymes for the digestion of feed. To overcome the undesirable effects of deleterious factors and improve digestion of feed, enzymes are used as supplements in feed formulation. Supplementation of feed with definite enzymes enhances its nutritive value, thereby increasing the effectiveness of digestion. Enzymes are the most important and useful additives in the animal feed industry. Xylanases are widely used in the animal feed industry. Pretreatment of animal feed with xylanases increases the nutritional value and digestion in ruminants. In this study, metagenomic data of bovine rumen were explored and then a thermostable xylanase gene was identified using TAXyl software and named PersiXyn9. The laboratory tests were carried out to determine the enzymatic activity. Protein expression was done in E. coli (BL21) and a Nickel column was used for protein purification. The biochemical parameters of the enzyme showed the optimal activity at 50℃, and the optimum pH of 6. Kinetic values, Km and Vmax, for this enzyme were calculated to be 1.18 mg/ml and 206.78 μmol min-1mg-1 respectively. Scanning electron microscopy (SEM) images of the activity of the enzyme on poultry feed at 50℃ represent the high efficiency of the xylanase as an additive in the poultry feed industry.
Keywords: Metagenome, Xylanase, Poultry Feed, Hydrolysis -
شاید زمانی که یوگنی زامیاتین و جورج اورول، رمان های «ما » و«1984» را در اعتراض به سیطره فاشیسم و توتالیتاریسم نوشتند و از فجایع قرن مخوف بیستم در قالب داستان و به زبان استعاره و ایهام، پرده برداشتند، هیچگاه تصور نمی کردند تنها اندک سال هایی بعد، اینبار عصر فردیت نیولیبرالی در زمانه جامعه اتمیزه شده بر جان و جهان آدمیان امروزین آوار شود. اگر تجربه آغاز و میانه قرن بیستم، تجربه بلشویسم، فاشیسم، نازیسم و جنگ های جهانی و... بود، امروز همه آن تمامیت خواهی، شکل جهان سرد و انزواطلبانه نهیلیستی را به خود گرفته است.
کلید واژگان: نقد کتاب, همبستگی اجتماعی و دشمنان آن, مکتب موس و دورکیم, آرمان ذاکری -
Background and Objectives
Nowadays, high-level aminoglycosides and ampicillin resistant Enterococcus species are among the most common causes of nosocomial infections. The present study was conducted to determine the prevalence of high-level resistance to aminoglycosides and ampicillin among clinical isolates of Enterococcus species in Ardabil, Iran.
Materials and MethodsIn this cross–sectional study, a total of 111 Enterococcus species were collected from different clinical specimens between 2013 and 2015. Enterococcus species were identified using standard phenotypic and genotypic methods. BHI agar screen and agar dilution methods were used for detection of high-level gentamicin and streptomycin resistance (HLGR and HLSR) and minimal inhibitory concentration (MIC) of ampicillin, respectively.
ResultsOf 111 clinical isolates, 59 (53.2%) and 25 (22.5%) isolates were E. faecalis and E. faecium, respectively, based on the PCR results. Totally, 60.3% and 56.7% of isolates were HLGR and HLSR, respectively, as well as 51.35% were HLGR plus HLSR. Among HLGR isolates, 36 (61.01%), 18 (72%) and 13 (48.14%) were E. faecium, E. faecalis and non-faecalis non-faecium species, respectively. Among HLSR isolates, 33 (55.93%), 16 (64%) and 14 (51.85%) were E. faecalis, E. faecium and non-faecalis non-faecium species, respectively. All HLGR isolates contained aac(6´)Ie-aph(2″)Ia gene. Overall, the prevalence of high-level ampicillin resistance among Enterococcus species was 17.1%. For E. faecalis, E. faecium and non-faecalis non-faecium species, ampicillin resistance rates were as follows: 11 (40.74%), 7 (28%) and 1 (1.69%), respectively. For aminoglycoside antibiotics, the resistance rate was significantly higher in E. faecium isolates and for ampicillin it was higher in E. faecalis isolates.
ConclusionThe frequency of high-level aminoglycoside resistant enterococcal isolates in our hospital was high and significant ampicillin resistance was noticed. This would require routine testing of enterococcal isolates for HLAR and ampicillin susceptibility.
Keywords: Enterococcus faecalis, Enterococcus faecium, High-level resistance, Gentamicin, Streptomycin, Ampicillin -
INTRODUCTION: Emotional intelligence (EI) and self‑efficacy are important factors that lead to success in work, life, and education. Various studies assessed the relationship between EI and well‑being, performance, and self‑efficacy in educational levels, but this topic has been rarely assessed in the occupational and administrative environments. The present study aimed to examine the relationship between EI and self‑efficacy among administrative staffs of Kerman University of Medical Sciences. METHODS: The study employed a descriptive‑correlational design and was conducted in six deputies supervised by the Kerman University of Medical Sciences in 2019, and 275 participants were selected using a census method. The research data were collected using the Goleman’s EI framework with a reliability coefficient of α = 0.87 and Sherer General Self‑Efficacy Scale with a reliability coefficient of α = 0.78. Data analysis was performed through Kolmogorov–Smirnov, analysis of variance, Tukey, and Pearson’s correlation coefficient techniques at P < 0.05 significance level. RESULTS: The mean score of EI was 98.8 ± 11.1 and the mean score of self‑efficacy was 60 ± 7.17. There was a significant positive relationship between the scores of EI and self‑efficacy. In addition, the findings indicated a positive significant correlation between self‑efficacy with self‑awareness, self‑regulation, and social skills. CONCLUSION: The findings of the current study confirm that EI has positive relationships with administrative personnel’s self‑efficacy. Therefore, implications of the findings can help in the selection, training, counseling, and retention of administrative personnel to the improvement of medical sciences universities’ occupational performance.Keywords: Emotional intelligence, hospital, self‑efficacy, staff
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Background
Cardiovascular disease (CVD) is the most common cause of death among patients with end‑stage renal disease especially whom under hemodialysis (HD). Stromal cell‑derived factor‑1 (SDF‑1) and its receptor CXC chemokine receptor type‑4 (CXCR4) could contribute to CVD. The main aim of this study was to evaluate the association between SDF‑1 and CXCR4 with CVD and its related risk factors in patients under HD.
MethodsSixty patients under HD and 29 healthy subjects were recruited in the study. The serum levels and relative messenger RNA (mRNA) expressions of SDF‑1 and CXCR4 were measured using enzyme‑linked immunosorbent assay and real‑time polymerase chain reaction in patients and controls, respectively. CVD history of the patients was obtained.
ResultsTwenty patients (33.3%) had a history of CVD. The mean levels of serum and relative mRNA expressions of SDF‑1 and CXCR4 were higher in patients than controls and also in patients with a history of CVD than patients without it. The serum levels and relative expressions of SDF‑1 and CXCR4 were positively correlated with blood urea nitrogen, parathyroid hormone, and high‑sensitivity C‑reactive protein and inversely correlated with hemoglobin. The history of CVD was the independent predictor of serum levels of SDF‑1 and CXCR4 and also relative mRNA expression of CXCR4.
ConclusionsThe higher levels of serum and relative mRNA expressions of SDF‑1 and CXCR4 were associated with CVD in patients under HD. Furthermore, SDF‑1 and CXCR4 were associated with several traditional and uremia-related CVD risk factors in such patients.
Keywords: Cardiovascular disease, CXC chemokine receptor type 4, end‑stage renal disease, hemodialysis, stromal cell‑derived factor‑1 -
زمینه و هدف
تحقیقات نشان داده است که نوع دستورالعمل های توجه، نقشی حیاتی در اجرا و یادگیری مهارت های مختلف از جمله مهارت های تعادلی و کنترل پاسچر دارد. هدف پژوهش حاضر بررسی تاثیر دستورالعمل های کانون توجه درونی و بیرونی (دور و نزدیک) بر تعادل ایستا و پویا جانبازان شیمیایی دارای اختلال حرکتی بود.
روش هادر این تحقیق که از نوع نیمه تجربی میباشد تعداد 30 نفر از جانبازان شیمیایی دارای اختلال حرکتی مراجعه کننده به یک بیمارستان نظامی در شهر تهران در سال1396 با استفاده از روش نمونهگیری کرجسی و مورگان انتخاب و جهت آزمون مورد نیاز شرکت نموده و مورد ارزیابی قرار گرفتند. تکالیف آزمون، تست لک لک (تعادل ایستا) و تست تخته موازنه (تعادل پویا) بود که برای هر 2 حالت تعادل 12 مرتبه و در 4 حالت توجهی (توجه درونی، توجه بیرونی دور، توجه بیرونی نزدیک و کنترل) انجام شد.
یافته هانتایج تحلیل واریانس با اندازه گیری تکراری نشان داد که شرکت کنندگان در دو شرایط کانون توجه بیرونی دور و نزدیک، به طور معناداری (p=0.001) نسبت به شرایط توجه درونی و کنترل، تعادل ایستا و پویا بهتری دارند.
نتیجه گیرینتایج پژوهش حاضر از فرضیه عمل محدود شده و فرضیه پردازش آشکار حمایت کرده و نشان میدهد که تمرکز روی اثرات حرکت در محیط، عملکرد حرکتی جانبازان شیمیایی دارای اختلال حرکتی در تکلیف تعادل ایستا و پویا را بهبود می بخشد.
کلید واژگان: کانون توجه, توجه درونی, توجه بیرونی, جانباز شیمیایی, اختلال حرکتیBackground and AimResearch has shown that the type of attentional instructions plays a vital role in performance and learning of various skills, including balance skills and postural control. The purpose of the present study was to investigate the effect of internal and external (close & far) attentional focus on the static and dynamic balance of chemical veterans with movement impairment.
MethodsThis research is quasi-experimental. The subjects were 30 chemical veterans with movement impairment who were referred to a military hospital in Tehran in 2017 were selected using Krejcie & Morgan sampling method and participated in the study. Test assignments included stork (static balance) and a balance beam test (dynamic balance), which was performed 12 times for both states of balance and 4 states (internal focus, far external attention, close external attention, and control).
ResultsThe results of variance analysis with repeated measurements (ANOVA) showed that the participants in both circumferences of external (close & far) attentional focus (P=0.001) had a better static and dynamic balance than the internal and control conditions.
ConclusionThe finding of the present study supports constrained-action hypothesis and explicit processing hypothesis and shows that focusing on the effects of movement in the environment improves the motor's performance of chemical veterans with movement impairment in the static and dynamic balance task.
Keywords: Focus of Attention, Internal Attention, External Attention, Chemical Veterans, Movement Impairment -
Introduction
Leishmania tropica and Leishmania major are the causative agents of Anthroponotic Cutaneous Leishmaniasis (ACL) and Zoonotic Cutaneous Leishmaniasis (ZCL) in various areas of Iran, respectively. Yazd province is one of the endemic centers of ZCL. Therefore, this study aimed to investigate and predict the effects of the climate change on the potential scattering of the vector and reservoir species of ZCL disease in Yazd province, as one of the endemic centers of ZCL in Iran in the present (1950-2000) and prospective time (2030).
MethodsAccording to the findings of prior studies conducted in Yazd province, the data related to the vectors and reservoir of the ZCL were collected and recorded in the databank. ArcGIS 10.3 and MaxEnt software were used to estimate the suitable ecological niches using 19 variables. In this study, Beijing Climate Center Climate System Model and scenario of Representative Concentration Pathway 4.5 were applied with respect to 2030 horizon.
ResultsAccording to results of Jackknife test, the climate variables of Bio8 & Bio6 for the current period, and climate variables of Bio8 & Bio7 for the future (2030) produced the most effects on the distribution of vector and reservoir species in Yazd province. These results indicated that temperature had the greatest impact on the vector’s distribution in the present and future. Currently, eastern and central areas of the province are more likely to receive most of the vector and reservoir species. It is anticipated that in the future, we will observe an increase in the presence of vector in the western districts and reservoirs in the northern and central regions of the province.
ConclusionClimate conditions provide suitable habitats for easy transfer of ZCL disease in Yazd province. This research confirmed that suitable climatic conditions for the vector and reservoir will be expanded in coming years in comparison with the current period.
Keywords: Climate Change, Leishmaniasis, Cutaneous, Zoonoses, Yazd province -
Journal of Sport Sciences and Health Research, Volume:11 Issue: 22, Winter and Spring 2019, PP 1 -12IntroductionThe present research aimed to compare and follow-up the effect of 8-week corrective exercises with and without the myofascial release on functional kyphosis deformity in young adults.MethodsIt was a randomized controlled trial in the university laboratory. Forty-five male students suffering from abnormal hyperkyphosis deformity (kyphosis of more than 42°) were selected and randomly assigned to three groups: corrective exercises, combinational exercises (corrective and myofascial release), and control. The Mean±SD age, height, and weight of the study sample were 22.12±2.88 years, 175.44±6.80 cm, and 71.21±7.31 kg, respectively. The study groups did the exercises for 8 weeks, under the direct observation of the researchers. The kyphosis angle of the participants was measured using a flexible ruler, at the baseline, post-test, and follow-up (4 weeks after the end of the exercises) stages. The collected data were analyzed with repeated measures Analysis of Variance (ANOVA) and Analysis of Covariance (ANCOVA) tests.ResultsAfter 8 weeks of exercises, the degree of kyphosis in the post-test and follow-up stages was significantly lower than that in the pre-test, in both training groups. The results of the ANCOVA test demonstrated that the thoracic kyphosis degree in the combinational exercises group was significantly lower than that of the corrective exercises group (P≤0.05), in the post-test and follow-up stages.ConclusionAccording to the results, the corrective exercises program in combination with the myofascial release is more effective than the corrective exercises alone, in correcting the thoracic kyphosis deformity.Keywords: Myofascial release, Corrective Exercises, Postural hyperkyphosis
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The aim of the current study was to investigate the antioxidative effect of metformin (MTF) on bile duct ligation (BDL)-induced hepatic disorder and histological damage in rats. The rats were divided into 4 groups including sham control (SC), BDL alone (BDL surgery), MTF1 (BDL surgery and administration of 250 mg/kg of MFM) and MTF2 (BDL surgery and administration of 500 mg/kg of MTF). After BDL, the animals treated with MTF by gavage for 10 days. Hematoxylin and eosin staining, biochemical analysis and oxidative stress markers were assayed to determine histological alterations, liver functions, and oxidant/antioxidant status. Hepatotoxicity was verified by remarkable increase in plasma levels of aminotransferases and alkaline phosphatase activity and liver histology 10 days after the BDL surgery. Our finding showed that treatment with MTF markedly reduced plasma alkaline phosphatase and alleviated liver injury indices (P ≤ 0.05). Furthermore, BDL caused a considerable increase in the protein carbonyl and malondialdehyde content (P ≤ 0.05). However, MTF reduces oxidative stress by constraining the protein oxidation and lipid peroxidation, and increases antioxidant reserve by increasing the ferric reducing ability of plasma and reducing glutathione levels. MTF exerts antioxidative effects in the liver fibrosis and may represent a hepato-protective effect when given to rats with BDL-induced hepatic injury.Keywords: Antioxidant, Cholestasis, Fibrosis, Metformin, Oxidative stress
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مقدمه
توجه به بهره وری در دانشگاه ها و متغیرهای موجود در این فرآیند می تواند در بالا بردن بهروری مدیران دانشگاه ها موثر باشد. بنابر این هدف از اجرای این پژوهش تعیین چالش های بهره وری مدیران دانشگاه های باز و از دور و ارائه مدل و راهبردهای اصلاحی در دانشگاه های باز و دور می باشد.
روش کاراین پژوهش از نوع توصیفی- همبستگی است. جامعه آماری شامل کلیه مدیران دانشگاه های باز و از دور تهران در سال 1396 بود. تعداد نمونه 246 نفر و روش نمونه گیری در دسترس بود و با استفاده از lisrel، SPSS داده ها مورد تجزیه و تحلیل قرار گرفت.
یافته هاعواملی چون پایین بودن سطح کیفی انجام امور، ناکارآمد بودن ساختار سازمانی، ضعف نظام های مدیریتی، فقدان شایسته سالاری در مدیریت، فقدان اعتماد میان مدیران و کارکنان، کمبود آموزش های مناسب و به روز در زمینه بهره وری، نداشتن چشم انداز دوربرد در مدیریت، روشن نبودن ماموریت های سازمان، کمبود اخلاقیات کاری در کارکنان، کمرنگ شدن نظام مشارکت کارکنان در درون سازمان، از عوامل چالش در بهره وری مدیران می باشد.
نتیجه گیریاین مدل می تواند راهگشای افزایش بهره وری مدیران دانشگاه های باز و از دور را فراهم بیاورد باید سطح کیفی انجام امور، ناکارآمد بودن ساختار سازمانی، ضعف نظام های مدیریتی، فقدان شایسته سالاری در مدیریت را در دانشگاه های باز و از دور اصلاح و عملیاتی نمود. از نتایج این پژوهش می توان در وزارتین بهداشت و علوم، دانشگاه آزاد، دانشگاه های باز و از دور استفاده نمود.
کلید واژگان: بهره وری, آموزش باز و از دور, چالش های مدیریتی, مدل معادلات ساختاریIntroductionAttention to productivity in universities and the variables in this process can be effective in promoting the skills of university administrators. So the purpose of this study is to determine the challenges that administrators in open and distance universities encounter and then provide remedial strategies in these universities according to the findings.
MethodsThis is a descriptive-correlational study. The statistical population includes all administrators of open and distance universities in Tehran in the academic year of 2017. The sample size is 246 who were selected through available sampling. The collected data were analyzed using SPSS and Lisrel software.
ResultsThe results of study show that there are some factors that are the causes of challenges in the productivity of managers. These factors include: the low level of job doing quality, inefficiency of organizational structures, the weakness of administrative system, the lack of meritocracy in management, the lack of trust between managers and employees, lack of proper and up-to-date training on productivity, lack of long-term vision in management, lack of clarity of missions in the organization, lack of employee’s morality, and reducing the employee’s participation system within the organization.
ConclusionsThis model can provide a boost to the efficiency of open and distance university managers. This model should improve the quality level of doing things, operationalize inefficacy of organizational structure, weak management systems, lack of merit in management in open and distance universities. All distance and virtual universities, such as medical science, state, Azad, scientific-practical, and nonprofit universities can benefit the results of this study
Keywords: Productivity, Open, Distant Education, Managerial Challenges, Structural Equation Model -
In this work, an efficient photocatalyst based on β-cyclodextrin-glycine-modified TiO2 nanoparticles (TiO2-Gly-βCD NPs) was successfully synthesized. The photocatalytic activity of the prepared TiO2-Gly-βCD was tested on the degradation of methylene blue (MB) and methyl orange (MO) dyes. The enhanced surface properties of TiO2-Gly-βCD photocatalyst generated excellent photocatalytic performance for the photocatalytic degradation of dyes in aqueous solution. These were strongly attributed to the presence of the functional hydroxyl groups and the inner cores of the hydrophobic cavity in β-CD to form inclusion complexes with organic molecules. As compared to the pure TiO2 and TiO2 modified by Gly, the dye degradation rate under UV irradiation was considerably enhanced by TiO2/Gly/βCD as a photocatalyst. In addition, the sonocatalytic degradation of dyes was investigated, and it was found that the ultrasonic waves slightly enhanced the degradation time of dyes. The results indicated that the first-order kinetic model well describes the degradation of MB and MO dyes by TiO2-Gly-βCD. Furthermore, the chemical oxygen demand (COD) values were determined for real industrial wastewater and treated wastewater.Keywords: Photocatalytic degradation, Surface-Modification, TiO2 Nanoparticles, TiO2-Gly-βCD, Ultrasonic Degradation, β-Cyclodextrin
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هدف از انجام این پژوهش شناسایی تاثیر میزان سواد و آگاهی بر نگرش مادران درباره تربیت اجتماعی فرزندان نوجوان بود روش پژوهش حاضر، علی- مقایسه ای و جامعه مورد نظر شامل کلیه مادرانی است که در دوره های نهضت سواد آموزی (مقدماتی، تکمیلی و پایانی) شرکت کرده و دارای فرزندان 12 تا 16 ساله بوده اند. ابزار تحقیق، پرسشنامه محقق ساخته بود که در بین افراد نمونه تحقیق که به روش نمونه گیری خوشه ایانتخاب شده بودند، توزیع شد. به منظور تجزیه و تحلیل اطلاعات جمع آوری شده، از تحلیل واریانس یک طرفه و آزمون تعقیبی توکی استفاده شد. نتایج به دست آمده در سطح 99 درصد اطمینان معنی دار بوده است. یافته های پژوهش نشان داد که بین میزان سواد و آگاهی با نگرش مادران درباره تربیت اجتماعی فرزندان تفاوت معناداری وجود دارد؛ به طوری که با افزایش سواد، آگاهی مادران درباره تربیت اجتماعی فرزندانشان افزایش می یابد و این افزایش آگاهی در تغییر نگرش آنان موثر است.
کلید واژگان: سواد و آگاهی, نگرش تربیتی, تربیت اجتماعی, فعالیت اجتماعی, تعامل اجتماعی, استقلال طلبیThe purpose of this research is to recognize the effect of knowledge and literacy on mothers’ attitude about their teenagers’ social training. In the present research the comparative-casual and measurable method is used and the mentioned society includes all of the mothers who had participated in a literacy campaign courses such as preliminary, complementary and conclusive and have the teenagers who were from 12to 16years old. The instruments of research are made of researcher’s questionnaire. This questionnaire is distributed between the sample people of research in 1385. These people include mothers who had cooperated with performing the questionnaire and were chosen with the cluster sampling method; and the number of them has been 345 in each 3courses. For analyzing the collected information, used the correlation of coefficient Pearson, one factor analysis of variance, Khido and Tukey’s following test and obtained results showed that there is a direct relation between knowledge and literacy about teenagers’ social training(P<./.1). The achievement of increasing new-literacy mothers’ knowledge is consists of applying information and obtaining knowledge for training children. The process of applying mothers’ knowledge for training children means that knowledge has changed the aspects of attitude about their training’s function and also the attitudes is affected on mothers’ function for training of their children.Keywords: Literacy, Knowledge, Educational Attitude, Social Training, Social Activity, Social Interaction, Independent -
مدیریت خطوط یکی از راهکارهای مدیریت ترافیک به منظور استفاده حداکثری از ظرفیت معبر برای انتقال تعداد بیشتری از مسافران با سرعت بالاتر و مطمئن تر می باشد. یکی از استراتژی های مدیریت خطوط، انحصاری نمودن خطوط پرسرنشین می باشد که با رعایت حق تقدم به وسایل نقلیه عمومی و پرسرنشین، گامی به جلو به منظور طراحی تسهیلاتی جهت تشویق به هم پیمایی و به کارگیری حمل و نقل عمومی می باشد. بررسی نحوه عملکرد اتوبوس های تندرو در بزرگراه های تهران حاکی از عدم استفاده حداکثری از خط ویژه تخصیص یافته به وسایل نقلیه همگانی می باشد. به منظور انتقال تعداد افراد بیشتر به جای انتقال وسیله بیشتر از امکان تجمیع خطوط اتوبوس تندرو و وسایل نقلیه پر سرنشین می توان بهره گرفت. بدین منظور یکی از بزرگراه های دارای تراکم بالا در ساعات اوج که استانداردهای پیاده سازی خطوط پرسرنشین را دارا می باشد به عنوان طرح پایلوت انتخاب شده و پس از شبیه سازی سناریوهای مختلف، مطلوب ترین وضعیت از نظر نوع کاربران مجاز، طول خطوط و تعبیه ایستگاه پیشنهاد شده است.
کلید واژگان: حمل و نقل همگانی, وسایل نقلیه پر سرنشین, اتوبوس تندرو, شبیه سازیManaged lanes have important role in promoting passenger mobility with higher speed and reliability. High occupancy vehicle lanes (HOV) provide priority treatments for public transportation and are steps toward designing and operating facilities to promote ridesharing and bus using, not just providing space for single-occupant vehicles. On the other hand, evaluation of the performance of Bus Rapid Transit systems (BRT) in Tehran highways indicates the inefficiency of exclusive lane dedicated to buses. In order to transfer more passengers instead of more vehicles, can be used combination of BRT and HOV in highways. For this purpose, one of the congested highways in peak hours which has standards of implementation of the HOV lanes was selected as pilot project and after the simulation of various scenarios, the optimum scenario of authorized users, and stations along the route is proposed.Keywords: Public transportation, High Occupancy Vehicle (HOV), Bus Rapid Transit (BRT), Simulation -
The first months of 2011 were witnessing the arrival of the new wave of Middle East movements to Syria, a phenomenon which disturbed the relatively calm Syrian society. So far, therehas not been any consensus among political analysts with regards to the root causes of the Syrian crisis, unlike Tunisian and Egyptian cases. While some analysts call this phenomenon asocial riot, others call it revolution or even a soft regime change. However, the Syrian case like many other Middle Eastern cases where the showcase of social creativities were present with the help of internal as well as external factors in the post cold war era, and of which some have been exploited by the Western actors, is worth to be investigated in terms of the specifics of its internal as well as external contributors. This paper tries to review first of all the social and structural elements which have paved the way to the emergence of the new wave of people's protest in Syria. Then, it will touch upon the measures taken by the Syrian Government in order to overcome the crisis and pacify the social environment. Finally, the paper discusses about the policy response consequences and the fact that how it may contribute to the obstacles and difficulties that the Syrian Government faces with.Keywords: Reforms, Bashar Asad, the Islamic awareness, Syrian developments, crisis management
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سرزمین حاصلخیز، پرآب و استراتژیک جولان، تنها سرزمین باقیمانده در محدوده فرا تر از خط سبز (مرزهای 1948) است که همچنان در اشغال رژیم صهیونیستی است. این سرزمین در سال 1967 به اشغال رژیم صهیونیستی درآمد و نبرد 1973 نیز در آزادسازی آن توفیق چندانی نداشت. از آن روز تا کنون، عقب نشینی از این ارتفاعات، مساله مشترک سوریه و رژیم صهیونیستی شده است. در این مقاله، جایگاه جولان در امنیت اسرائیل در سه مولفه موقعیت استراتژیک نظامی، منابع آبی و جمعیت مورد بررسی قرار گرفته است. هدف از این تحقیق، شناخت جایگاه این مولفه ها در امنیت اسرائیل است. آیا عقب نشینی از جولان، همچون سه توافق نامه رژیم صهیونیستی با مصر، حکومت خودگردان فلسطین و اردن، می تواند امنیت رژیم صهیونیستی را تامین کند یا برجستگی های این سرزمین، هرگونه عقب نشینی را برای امنیت رژیم صهیونیستی پر هزینه و گران بها خواهد کرد؟
The water rich, fertile and strategic region of Golan is the only region which is located in beyond green line border (1948 border) and still occupied by the Zionist regime. It was occupied in 1967 and the battle to free it in 1973 was not successful. From that time on, withdrawal from this region has been an issue betweenSyriaand the Zionist regime. This paper studies the place of theGolan Heightsin security of the Zionist regime in terms of strategic location, water sources and population. The purpose of the current paper is identification of the above factors in security of the Zionist regime. Can withdrawal from this region serve security of this regime as it was the case by the treaty between the regime andEgypt,Jordanand the Palestinian Autonomous Authority or the advantages of this region will make withdrawal costly for the Zionist regime?Keywords: Tabaria Lake, Jordan River, Golan Heights, Israeli Settlements, Hydro, politics, The Israel, Syria Wars, Israel -
در سال 2000، با شکست دیدار اسد و کلینتون در ژنو، مذاکرات صلح سوریه و اسرائیل ناکام ماند، بار دیگر از بهار سال 2008، مذاکرات رسمی به صورت غیر مستقیم در ترکیه آغاز گردید. از 19 مه تا 23 دسامبر 2008، شش دور از این مذاکرات انجام شد و پس از مدتی توقف، با آغاز حمله اسرائیل به غزه، به صورت یکطرفه توسط دمشق قطع گردید. با توجه به نقش سوریه در موازنه منطقه ای و با نظر به اینکه، هدف از این مذاکرات آزادسازی جولان اشغالی است، بررسی روند پیگیری و پیش بینی روند مذاکرات اهمیتی راهبردی می یابد. بر این اساس، بررسی مبانی روند و پیچیدگی های مذاکرات و تحلیل چرایی و نتایج احتمالی آن برای جمهوری اسلامی ایران، موضوع مقاله حاضر است.
کلید واژگان: قطع نامه 242, قطع نامه 338, جولان, ودیعه رابین, دریاچه طبریا, مرز 4 ژوئن 1967, مذاکرات مادرید, مذاکرات واشنگتن, مذاکرات ترکیه, پارک صلح, مرز 1923While the US– Syria summit conference failed to contribute to peace negotiations betweenSyriaandIsraelin 2000, the official negotiations restarted indirectly inTurkeyin the Spring of 2008. Since May 19, up to 23 December of 2008, six rounds of negotiations took place and after a short interval, with the Israeli attack onGazathe negotiations stopped unilaterally bySyria. Given the Syrian role as the balancer in the region and as the aim of these negotiations is liberation of theGolan Heights, it is important to consider the trend of negotiations and predict the future. Therefore, the paper aims to survey and consider the foundations and trends as well as complexities of negotiations and finally illustration of the possible impacts of the negotiations on the Islamic Republic of Iran.Keywords: Resolutions 242, 338, Golan Heights, the Rubin's Legacy, the Tiria Lake, June 4, 1967 Border, Madrid Talks, Washington Talks, Turkey Talks, Peace Park, 1923 Border -
در این مقاله، به ترتیبات و الگوهای امنیتی در خلیج فارس، از آغاز شکل گیری این مجموعه امنیتی و اضلاع سه گانه آن توجه شده و ضمن اشاره به ناکافی بودن نظریه های وابستگی و امپریالیسم برای توضیح این ترتیبات، ضرورت توجه به دوآلیسم برخاس ته از الهامات واقع گرایی و لیبرالیسم مورد تاکید قرار گرفته است. در این راستا نویسنده به رویکرد دو قدرت مداخله گر انگلیس و آمریکا در تنظیم ترتیبات امنیتی خلیج فارس پرداخته و اختلاف و تعارضات ادراکی بازیگران از ترتیبات امنیتی مورد نظر را بررسی کرده است. فرصت ها و امکانات موجود ایران برای ایجاد تکامل در این ترتیبات، مبحث پایانی مقاله را تشکیل می دهد.کلید واژگان: خلیج فارس, امنیت منطقه ای, رژیم امنیتی, مجموعه امنیتی, ترتیبات امنیتیIn this paper, the security arrangements and models in thePersian Gulfis discussed from the beginning of its security system along with its triple dimensions. However, it is mentioned that theories of Dependency and Imperialism do not suffice to explain those arrangements and therefore, paying due regard to the dichotomy derived from Realism and Liberalism is needed. In this way, while considering the approaches of theUSAand theUK, the two interventionist power in the region, the author is addressing different understandings of security arrangements by all the actors involved. This paper concludes with the discussion of possible opportunities and options forIranto evolve this system.Keywords: Persian Gulf, Regional security, Security Regime, Security Compound, Security Arrangements
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Due to the fact that Israel grants serious attention on securing its interests in the Middle East, its military buildup and presence have increased over time, which deems it necessary to analyse the different aspects of its security threats in the area. The present article while stressing a direct relationship between Israeli interests and its actions in the region, emphasizes that the expansionism exercised is related to the survival of the Israeli state.The questions raised and answered in this article are: what are the new security threats of Israel? Can these threats destabilize the political balance of the region?In order to analyze the new threats, the military structure of Israel is evaluated in this article.
- در این صفحه نام مورد نظر در اسامی نویسندگان مقالات جستجو میشود. ممکن است نتایج شامل مطالب نویسندگان هم نام و حتی در رشتههای مختلف باشد.
- همه مقالات ترجمه فارسی یا انگلیسی ندارند پس ممکن است مقالاتی باشند که نام نویسنده مورد نظر شما به صورت معادل فارسی یا انگلیسی آن درج شده باشد. در صفحه جستجوی پیشرفته میتوانید همزمان نام فارسی و انگلیسی نویسنده را درج نمایید.
- در صورتی که میخواهید جستجو را با شرایط متفاوت تکرار کنید به صفحه جستجوی پیشرفته مطالب نشریات مراجعه کنید.