1,859 research outputs found
River flow regime alteration : causes and effects in different climate systems
No full textAbstract
This thesis investigates the causes and effects of river flow alteration across different climate systems. It examines case studies from arid and semi-arid regions (Zayandeh-Rud River basin and Iran’s central plateau), humid regions (southern Caspian Sea (SCS)), and cold regions (Torniojoki River basin in Finland). The research develops a framework to quantify the impact of anthropogenic (AD) and climatic (CD) drivers on river flow and assesses their consequences. This thesis includes five peer-reviewed publications, and one submitted manuscript. The findings reveal that CD has reduced inflows to the Zayandeh-Rud Dam, while AD is the primary cause of inflow reduction and water body shrinkage in Iran’s central plateau. In the humid SCS region, AD has caused a decline in inflows to the Caspian Sea. In contrast, the cold Torniojoki River basin has experienced increased flow due to CD. This research highlights the urgent need to address hydrological alterations worldwide. Developing effective strategies is essential to mitigate the impacts of human activities and climate change on river systems. Future efforts should prioritize improving climate adaptation strategies, leveraging advanced remote sensing and data analytics for real-time hydrological monitoring, and investing in ecosystem-based solutions to restore natural processes and enhance resilience to extreme weather events. Original papers Sharifi, A., Mirabbasi, R., Ali Nasr-Esfahani, M., Torabi Haghighi, A., & Fatahi Nafchi, R. (2021). Quantifying the impacts of anthropogenic changes and climate variability on runoff changes in central plateau of Iran using nine methods. Journal of Hydrology, 603, 127045. https://doi.org/10.1016/j.jhydrol.2021.127045 https://doi.org/10.1016/j.jhydrol.2021.127045 Self-archived version Sharifi, A., Baubekova, A., Patro, E. R., Klöve, B., & Torabi Haghighi, A. (2024). The combined effects of anthropogenic and climate change on river flow alterations in the Southern Caspian Sea Iran. Heliyon, 10(11), e31960. https://doi.org/10.1016/j.heliyon.2024.e31960 https://doi.org/10.1016/j.heliyon.2024.e31960 Self-archived version Torabi Haghighi, A., Sharifi, A., Darabi, H., Mazaheri, M., Mohammadpour, R., Gohari, A., Noury, M., Hekmatzadeh, A. A., Panchanathan, A., Hashemi, H., Xenarios, S., & Klöve, B. (2024). When rain does not run, a fingerprint of uncoordinated water resources development. Journal of Hydrology, 629, 130626. https://doi.org/10.1016/j.jhydrol.2024.130626 https://doi.org/10.1016/j.jhydrol.2024.130626 Self-archived version Sharifi, A., Khodaei, B., Ahrari, A., Hashemi, H., & Torabi Haghighi, A. (2024). Can river flow prevent land subsidence in urban areas? Science of The Total Environment, 917, 170557. https://doi.org/10.1016/j.scitotenv.2024.170557 https://doi.org/10.1016/j.scitotenv.2024.170557 Self-archived version Ahrari, A., Sharifi, A., & Torabi Haghighi, A. (2024). Anthropogenic vs. climatic drivers: Dissecting Lake desiccation on the Iranian plateau. Journal of Environmental Management, 368, 122103. https://doi.org/10.1016/j.jenvman.2024.122103 https://doi.org/10.1016/j.jenvman.2024.122103 Self-archived version Sharifi. A., Nakigudde C., Moradian. S., Mirabbasi. R., Meilutytė-Lukauskienė. D., & Torabi Haghighi. A. (2025) The impact of climate change on the pattern of meteorological variables and river flow in the Nordic region (Torniojoki River Basin). Manuscript in preparation Tiivistelmä
Tämä väitöskirja tutkii jokivirtaaman muutosten syitä ja vaikutuksia eri ilmastojärjestelmissä. Se tarkastelee tapaustutkimuksia kuivilla ja puolikuivilla alueilla (Zayandeh-Rudin valuma-alue ja Iranin keskinen tasanko), kosteilla alueilla (eteläinen Kaspianmeri (SCS)) ja kylmillä alueilla (Tornionjoen valuma-alue Suomessa). Tutkimus kehittää viitekehyksen ihmislähtöisten tekijöiden (AD) ja ilmastollisten tekijöiden (CD) vaikutusten määrälliseen arviointiin jokivirtaamaan sekä niiden seurausten analysointiin. Tämä väitöskirja sisältää viisi vertaisarvioitua julkaisua ja yhden vertaisarviointiin lähetetyn käsikirjoituksen. Tulokset osoittavat, että CD:t ovat vähentäneet virtaamia Zayandeh-Rudin patoon, kun taas AD:t ovat pääasiallinen syy virtaaman vähenemiseen ja vesistöjen kutistumiseen Iranin keskisellä tasangolla. Kostealla SCS-alueella AD:t ovat johtaneet Kaspianmereen laskevien virtaamien vähenemiseen. Sen sijaan kylmän ilmaston Tornionjoen valuma-alueella CD:t ovat lisänneet virtaamia. Tämä tutkimus korostaa tarvetta puuttua hydrologisiin muutoksiin maailmanlaajuisesti. Tehokkaat strategiat ovat välttämättömiä ihmistoiminnan ja ilmastonmuutoksen vaikutusten lieventämiseksi jokiekosysteemeissä. Tulevaisuudessa tulisi asettaa etusijalle ilmastonmuutokseen sopeutumiseen liittyvien strategioiden parantaminen, hyödyntämällä kehittynyttä kaukokartoitusta ja data analytiikkaa reaaliaikaiseen hydrologiseen seurantaan sekä investoiminen ekosysteemipohjaisiin ratkaisuihin luonnollisten prosessien palauttamiseksi ja sään ääri-ilmiöihin sopeutumiskyvyn parantamiseksi. Osajulkaisut Sharifi, A., Mirabbasi, R., Ali Nasr-Esfahani, M., Torabi Haghighi, A., & Fatahi Nafchi, R. (2021). Quantifying the impacts of anthropogenic changes and climate variability on runoff changes in central plateau of Iran using nine methods. Journal of Hydrology, 603, 127045. https://doi.org/10.1016/j.jhydrol.2021.127045 https://doi.org/10.1016/j.jhydrol.2021.127045 Rinnakkaistallennettu versio Sharifi, A., Baubekova, A., Patro, E. R., Klöve, B., & Torabi Haghighi, A. (2024). The combined effects of anthropogenic and climate change on river flow alterations in the Southern Caspian Sea Iran. Heliyon, 10(11), e31960. https://doi.org/10.1016/j.heliyon.2024.e31960 https://doi.org/10.1016/j.heliyon.2024.e31960 Rinnakkaistallennettu versio Torabi Haghighi, A., Sharifi, A., Darabi, H., Mazaheri, M., Mohammadpour, R., Gohari, A., Noury, M., Hekmatzadeh, A. A., Panchanathan, A., Hashemi, H., Xenarios, S., & Klöve, B. (2024). When rain does not run, a fingerprint of uncoordinated water resources development. Journal of Hydrology, 629, 130626. https://doi.org/10.1016/j.jhydrol.2024.130626 https://doi.org/10.1016/j.jhydrol.2024.130626 Rinnakkaistallennettu versio Sharifi, A., Khodaei, B., Ahrari, A., Hashemi, H., & Torabi Haghighi, A. (2024). Can river flow prevent land subsidence in urban areas? Science of The Total Environment, 917, 170557. https://doi.org/10.1016/j.scitotenv.2024.170557 https://doi.org/10.1016/j.scitotenv.2024.170557 Rinnakkaistallennettu versio Ahrari, A., Sharifi, A., & Torabi Haghighi, A. (2024). Anthropogenic vs. climatic drivers: Dissecting Lake desiccation on the Iranian plateau. Journal of Environmental Management, 368, 122103. https://doi.org/10.1016/j.jenvman.2024.122103 https://doi.org/10.1016/j.jenvman.2024.122103 Rinnakkaistallennettu versio Sharifi. A., Nakigudde C., Moradian. S., Mirabbasi. R., Meilutytė-Lukauskienė. D., & Torabi Haghighi. A. (2025) The impact of climate change on the pattern of meteorological variables and river flow in the Nordic region (Torniojoki River Basin). Manuscript in preparation Academic dissertation to be presented with the assent of the Doctoral Programme Committee of Technology and Natural Sciences of the University of Oulu for public defence in Lapinsali (L3), Linnanmaa, on 30 October 2025, at 12 noonAbstract
This thesis investigates the causes and effects of river flow alteration across different climate systems. It examines case studies from arid and semi-arid regions (Zayandeh-Rud River basin and Iran’s central plateau), humid regions (southern Caspian Sea (SCS)), and cold regions (Torniojoki River basin in Finland). The research develops a framework to quantify the impact of anthropogenic (AD) and climatic (CD) drivers on river flow and assesses their consequences. This thesis includes five peer-reviewed publications, and one submitted manuscript. The findings reveal that CD has reduced inflows to the Zayandeh-Rud Dam, while AD is the primary cause of inflow reduction and water body shrinkage in Iran’s central plateau. In the humid SCS region, AD has caused a decline in inflows to the Caspian Sea. In contrast, the cold Torniojoki River basin has experienced increased flow due to CD. This research highlights the urgent need to address hydrological alterations worldwide. Developing effective strategies is essential to mitigate the impacts of human activities and climate change on river systems. Future efforts should prioritize improving climate adaptation strategies, leveraging advanced remote sensing and data analytics for real-time hydrological monitoring, and investing in ecosystem-based solutions to restore natural processes and enhance resilience to extreme weather events.Tiivistelmä
Tämä väitöskirja tutkii jokivirtaaman muutosten syitä ja vaikutuksia eri ilmastojärjestelmissä. Se tarkastelee tapaustutkimuksia kuivilla ja puolikuivilla alueilla (Zayandeh-Rudin valuma-alue ja Iranin keskinen tasanko), kosteilla alueilla (eteläinen Kaspianmeri (SCS)) ja kylmillä alueilla (Tornionjoen valuma-alue Suomessa). Tutkimus kehittää viitekehyksen ihmislähtöisten tekijöiden (AD) ja ilmastollisten tekijöiden (CD) vaikutusten määrälliseen arviointiin jokivirtaamaan sekä niiden seurausten analysointiin. Tämä väitöskirja sisältää viisi vertaisarvioitua julkaisua ja yhden vertaisarviointiin lähetetyn käsikirjoituksen. Tulokset osoittavat, että CD:t ovat vähentäneet virtaamia Zayandeh-Rudin patoon, kun taas AD:t ovat pääasiallinen syy virtaaman vähenemiseen ja vesistöjen kutistumiseen Iranin keskisellä tasangolla. Kostealla SCS-alueella AD:t ovat johtaneet Kaspianmereen laskevien virtaamien vähenemiseen. Sen sijaan kylmän ilmaston Tornionjoen valuma-alueella CD:t ovat lisänneet virtaamia. Tämä tutkimus korostaa tarvetta puuttua hydrologisiin muutoksiin maailmanlaajuisesti. Tehokkaat strategiat ovat välttämättömiä ihmistoiminnan ja ilmastonmuutoksen vaikutusten lieventämiseksi jokiekosysteemeissä. Tulevaisuudessa tulisi asettaa etusijalle ilmastonmuutokseen sopeutumiseen liittyvien strategioiden parantaminen, hyödyntämällä kehittynyttä kaukokartoitusta ja data analytiikkaa reaaliaikaiseen hydrologiseen seurantaan sekä investoiminen ekosysteemipohjaisiin ratkaisuihin luonnollisten prosessien palauttamiseksi ja sään ääri-ilmiöihin sopeutumiskyvyn parantamiseksi
Supplemental material for Breathable hydrogel dressings containing natural antioxidants for management of skin disorders
No full textSupplemental material for Breathable hydrogel dressings containing natural antioxidants for management of skin disorders by Mattia Comotto, Saghi Saghazadeh, Sara Bagherifard, Bahar Aliakbarian, Mehdi Kazemzadeh-Narbat, Fatemeh Sharifi, Seyed Ali Mousavi Shaegh, Elmira Arab-Tehrany, Nasim Annabi, Patrizia Perego, Ali Khademhosseini and Ali Tamayol in Journal of Biomaterials Applications</p
نقش واسطهیی تحمل پریشانی در رابطهی بلوغ عاطفی و هوش معنوی با سازگاری با دانشگاه در دانشجویان پسر دانشگاه شهید چمران اهواز
No full textخلفية البحث وأهدافه: التكيف مع الحياة الجامعية هو واحد من العوامل المهمة في مختلف جوانب الحياة الطلابية كباقي العوامل بما في ذلك الصحة الجسمية والعقلية والتكيف الاجتماعي في الاجواء غير الجامعية. الغرض من هذا البحث، دراسة دور تحمل الارتباك كعامل وسيط في النضج العاطفي والذكاء المعنوي مع التكييف الجامعي.
منهجية البحث: في تصميم ارتباطي، تم اختیار 273 طالباً من بين الطلاب المقيمين في القسم الداخلي بجامعة الشهيد شمران في العام الدراسي 2016-2017 وذلك بطريقة اخذ العينة العنقودية مستخدما جدول krejcie و Morgan. تم استخدام استمارة النضج العاطفي والذكاء المعنوي وتحمل الإرتباك والتكيف الجامعى لغرض جمع البيانات. تم تحليل البيانات وتجزئتها باستخدام معامل ارتباط بيرسون والنمذجة بالمعادلة البنائية (SEM). تمت مراعاة جميع الموارد الأخلاقية في هذا البحث؛ واضافة الى هذا فإن مؤلفي المقالةلم يشيروا الى اي تضارب في المصالح.
الكشوفات: بناء على الكشوفات، هناك علاقة ايجابية ذات دلالة احصائية بين النضج العاطفي والذكاء المعنوي وبين التكيف الجامعي. كما ان هناك علاقة ايجابية دالة احصائية ايضا بين تحمل الارتباك والتكيف الجامعي وبين النضج العاطفي والذكاء المعنوي مع تحمل الارتباك. تشير النتائج الى ان النموذج المقترح للعلاقة بين المتغيرات المذكورة أعلاه يكون مناسبًا تمامًا مع تصحيح وإزالة المسار المباشر للذكاء المعنوي الى التكيف الجامعي. اضافة الى هذا، فإن المسار المباشر للنضج العاطفي الى التكيف الجامعي كان دالا احصائياً. كما أظهرت نتائج المعاملات غير المباشرة باستخدام Bootstrap أن جميع المسارات غير المباشرة كانت ذات دلالة احصائية.
الاستنتاج: اظهرت النتائج ان الذكاء المعنوي والنضج العاطفي ومن خلال تحمل الارتباط، يؤديان الى زيادة نسبة تكيف الطالب مع الحياة الجامعية. لذلك، يُقترح أن يُدوّن برامج تعليمية للذكاء المعنوي والنضج العاطفي مع التركيز على زيادة تحمّل الارتباك من أجل زيادة توافق الطلاب مع الحياة الجامعية.
يتم استناد المقالة على الترتيب التالي:
Sharifi-Rigi A, Mehrabizade-Honarmand M, Beshlideh K, Sarparast A, Khanali-Nejad S, Amini Z. Mediating Role of Distress Tolerance in Relationship of Emotional Maturity and Spiritual Intelligence with Adjustment to University. Journal of Pizhūhish dar dīn va salāmat. 2019;5(1):87-100. https://doi.org/10.22037/jrrh.v5i1.19401Background and Objective: Adjustment to university is an important factor in different dimensions of students’ life such as mental-physical health and social adjustment in the fields outside the university. The aim of this study was to determine mediating role of distress tolerance in the relationship of spiritual intelligence and emotional maturity with adjustment to university.
Methods: In this correlation study, based on Krejsi and Murgan table, 273 students of Shahid Chamran University in Ahvaz city were selected via multistage cluster sampling method during the fall semester of the academic year of 2016-2017. The participants completed the items of Emotional Maturity Scale, Distress Tolerence Scale, Spiritual Intelligence Inventory and Adjustment to College Scale. The data were then analyzed using Pearson correlation coefficient, structural equation modeling. All ethical issues were observed in this study and the researchers declared no conflict of interests.
Results: The findings showed that emotional maturity, spiritual intelligence, and distress tolerance had positive significant correlation with adjustment to college. There was also a positive significant correlation between emotional maturity as well as spiritual intelligence and distress tolerance. The proposed model for relationship between these variables has acceptable fit with a correction and removal of direct path of spiritual intelligence with adjustment to college. Direct path of emotional maturity to adjustment to college was significant. The analysis based on Bootstrapping indicated that all indirect paths were significant.
Conclusion: It is proposed that to raise adjustment to university, educational programs for emotional maturity and spiritual intelligence with an emphasis on enhancing distress tolerance should be developed.
Please cite this article as: Sharifi-Rigi A, Mehrabizade-Honarmand M, Beshlideh K, Sarparast A, Khanali-Nejad S, Amini Z. Mediating Role of Distress Tolerance in Relationship of Emotional Maturity and Spiritual Intelligence with Adjustment to University. Journal of Pizhūhish dar dīn va salāmat. 2019;5(1):87-100. https://doi.org/10.22037/jrrh.v5i1.19401سابقه و هدف: سازگاری با دانشگاه از عوامل مهم در ابعاد مختلف زندگی دانشجویان مانند بهداشت جسمی-روانی و سازگاری اجتماعی در حوزههای خارج از دانشگاه است. هدف این پژوهش بررسی نقش واسطهیی تحمل پریشانی در رابطهی بلوغ عاطفی و هوش معنوی با سازگاری با دانشگاه است.
روش کار: در یک طرح همبستگی و با استفاده از روش نمونهگیری خوشهیی از بین دانشجویان پسر مجتمع خوابگاهی وابسته به دانشگاه شهید چمران اهواز، با استفاده از جدول کرجسی و مورگان، تعداد 273 دانشجوی پسر در سال تحصیلی 95-96 انتخاب شدند. در پژوهش حاضر از پرسشنامههای بلوغ عاطفی، هوش معنوی، تحمل پریشانی و سازگاری با دانشگاه برای جمعآوری دادهها استفاده شد. برای تجزیه و تحلیل دادهها نیز از ضریب همبستگی پیرسون و الگویابی معادلات ساختاری (SEM) استفاده شد. در این پژوهش همهی مسائل اخلاقی رعایت شده است و نویسندگان مقاله هیچگونه تضاد منافعی گزارش نکردهاند.
یافتهها: بر اساس یافتههای بهدستآمده، بلوغ عاطفی و هوش معنوی با سازگاری با دانشگاه ارتباط مثبت معنادار داشت. همچنین بین تحمل پریشانی و سازگاری با دانشگاه؛ و بین بلوغ عاطفی و هوش معنوی با تحمل پریشانی نیز ارتباط مثبت معنادار وجود داشت. نتایج نشان داد که مدل پیشنهادی با یک اصلاح و حذف مسیر مستقیم هوش معنوی به سازگاری با دانشگاه دارای برازش پذیرفتنی بود. علاوهبراین، مسیر مستقیم بلوغ عاطفی به سازگاری با دانشگاه نیز معنیدار بود. همچنین، نتایج ضرایب غیرمستقیم با استفاده از بوت استراپ نشان داد که همهی مسیرهای غیرمستقیم نیز معنیدار بود.
نتیجهگیری: نتایج نشان میدهد که هوش معنوی و بلوغ عاطفی از طریق تحمل پریشانی موجب افزایش سازگاری با دانشگاه میشود. بنابراین، پیشنهاد میشود به منظور افزایش سازگاری با دانشگاه در دانشجویان، برنامههای آموزشی هوش معنوی و بلوغ عاطفی با تأکید بر افزایش تحمل پریشانی آنان تدوین شود.
استناد مقاله به این صورت است:
Sharifi-Rigi A, Mehrabizade-Honarmand M, Beshlideh K, Sarparast A, Khanali-Nejad S, Amini Z. Mediating Role of Distress Tolerance in Relationship of Emotional Maturity and Spiritual Intelligence with Adjustment to University. Journal of Pizhūhish dar dīn va salāmat. 2019;5(1):87-100. https://doi.org/10.22037/jrrh.v5i1.1940
Mediating Role of Distress Tolerance in Relationship of Emotional Maturity and Spiritual Intelligence with Adjustment to University
No full textFor downloading the full-text of this article please click here.Background and Objective: Adjustment to university is an important factor in different dimensions of students’ life such as mental- physical health and social adjustment in the fields outside the university. The aim of this study was to determine mediating role of distress tolerance in the relationship of spiritual intelligence and emotional maturity with adjustment to university.Method: In this correlation study, based on Krejsi and Murgan table, 273 students of Shahid Chamran University in Ahvaz city were selected via multistage cluster sampling method during the fall semester of the academic year of 2016-2017. The participants completed the items of Emotional Maturity Scale, Distress Tolerence Scale, Spiritual Intelligence Inventory and Adjustment to College Scale. The data were then analyzed using Pearson correlation coefficient, structural equation modeling. All ethical issues were observed in this study and the researchers declared no conflict of interests.Results: The findings showed that emotional maturity, spiritual intelligence, and distress tolerance had positive significant correlation with adjustment to college. There was also a positive significant correlation between emotional maturity as well as spiritual intelligence and distress tolerance. The proposed model for relationship between these variables has acceptable fit with a correction and removal of direct path of spiritual intelligence with adjustment to college. Direct path of emotional maturity to adjustment to college was significant. The analysis based on Bootstrapping indicated that all indirect paths were significant.Conclusion: It is proposed that to raise adjustment to university, educational programs for emotional maturity and spiritual intelligence with an emphasis on enhancing distress tolerance should be developed.For downloading the full-text of this article please click here.Please cite this article as: Sharifi Rigi A, Mehrabizade Honarmand M, Beshlideh K, Sarparast A, Khanali Nejad S, Amini Z. Mediating Role of Distress Tolerance in Relationship of Emotional Maturity and Spiritual Intelligence with Adjustment to University. J Res Relig Health. 2019; 5(1): 87- 100. doi: https://doi.org/10.22037/jrrh.v5i1.1940
عملکرد پرسنل اورژانس پيش بيمارستاني در تحويل ايمن بيماران با تروماي سيستم عصبي شهر ايرانشهر در سال 97-1396
No full textBackground and Objectives: Prehospital care is the first and most important part of dealing with trauma patients that play an essential role in reducing mortality and improving these outcomes. This study aimed to evaluate the emergency medical technicians' performance in securing delivery patients, including nervous system trauma in the city of Iranshahr during 2016-2017.
Materials and Methods: The present study was a descriptive cross-sectional study conducted in 2016-2017. A total of 139 prehospital emergency personnel in the Iranshahr participated in this study. Data collected through checking the mission sheet, interview with staff, observing and examining the patient's treatment procedures for the patient transferred to the emergency room. The data collection tools were researcher-made and included a demographic questionnaire and a checklist of staff performance evaluation, which use after psychometrics. Data analysis performed using descriptive and analytical statistical methods.
Results: The study results showed the average performance score was 17.32 ± 3.3. The highest mean score of performance in the field of interventions related to determining the type of trauma, assessment of first vital signs and level of consciousness 0.99 ± 0.10, and the lowest mean score of performance about interventions related to airway openness and cardiac arrest were 0.42 ± 0.19.
Conclusion: According to this study results, prehospital emergency personnel had low-performance levels in some care areas for nervous system trauma patients. As a result, holding continuous training and clinical courses can significantly reduce the weaknesses in prehospital care provided for trauma patients and improve clinical outcomes.
How to cite this article: Borhanzehi KH, Ebrahimi Rigi Tanha Z, Dadpisheh S, Yazdan Parast E, Rigi A, Ebrahimi Rigi Tanha H. The Emergency Medical Technicians' Performance in Securing Delivery Patients, Including Nervous System Trauma in the city of Iranshahr during 2016-2017. J Saf Promot Inj Prev. 2021; 8(4):219-26.سابقه و هدف: مراقبت هاي پيش بيمارستاني، اولين و مهم ترين بخش در مواجهه با بيماران ترومايي مي باشندکه نقش مهمي در کاهش مرگ و مير و بهبود پيامدها دراين بيماران دارند. اين مطالعه با هدف تعيين عملکرد پرسنل اورژانس پيش بيمارستاني در تحويل ايمن بيماران با تروماي سيستم عصبي شهر ايرانشهر در سال97-1396 انجام شد.
روش بررسي: پژوهش حاضر يک مطالعه توصيفي از نوع مقطعي بود که در سال 97-1396 انجام شد. تعداد 139 پرسنل اورژانس پيش بيمارستاني ايرانشهر به صورت سرشماري وارد مطالعه شدند. جمع آوري داده ها با بررسي برگ مأموريت، مصاحبه با پرسنل، مشاهده و بررسي پروسيجرهاي درماني انجام شده براي بيمار منتقل شده به اورژانس انجام شد. ابزار جمع آوري داده ها محقق ساخته و شامل پرسشنامه جمعيت شناختي و چک ليست ارزيابي عملکرد پرسنل بودند، که پس از روان سنجي مورد استفاده قرار گرفتند. تحليل داده ها با استفاده از آناليز توصيفي و تحليلي انجام شد.
نتايج: براساس نتايج مطالعه، ميانگين نمره عملکرد پرسنل 3/3±32/17به دست آمد. بالاترين نمره ميانگين عملکرد در حيطه مداخلات مرتبط با تعيين نوع تروما، بررسي علائم حياتي اوليه و بررسي سطح هوشياري10/0±99/0 و کمترين ميانگين نمره عملکرد مربوط به مداخلات مرتبط با باز بودن راه هوايي و ايست قلبي19/0±42/0 بود.
نتيجه گيري: طبق نتايج اين پژوهش پرسنل اورژانس پيش بيمارستاني در برخي حيطه هاي مراقبت از بيماران با تروماي سيستم عصبي، از سطح عملکرد پاييني برخوردار بودند. در نتيجه برگزاري دوره هاي آموزشي و باليني مداوم مي تواند تا حدود زيادي نقايص موجود در مراقبت هاي پيش بيمارستاني ارايه شده براي بيماران ترومايي را کاهش داده و پيامدهاي باليني را در اين بيماران بهبود بخشد.
How to cite this article: Borhanzehi KH, Ebrahimi Rigi Tanha Z, Dadpisheh S, Yazdan Parast E, Rigi A, Ebrahimi Rigi Tanha H. The Emergency Medical Technicians' Performance in Securing Delivery Patients, Including Nervous System Trauma in the city of Iranshahr during 2016-2017. J Saf Promot Inj Prev. 2021; 8(4):219-26
Protective and anti-inflammatory effects of silymarin on paraquat-induced nephrotoxicity in rats
No full textIntroduction: Paraquat is a quaternary nitrogen herbicide which induces kidney toxicity due to producing oxidative stress. We have investigated the potential protective effects of silymarin on paraquat-induced renal toxicity.
Methods: Twenty-four male rats were divided into three groups, group 1, control group; group 2, rats that received paraquat only (25 mg/kg b.w./day, po); animals in group 3, was treated with paraquat (25 mg/kg b.w./day, po) and silymarin (50 mg/kg b.w./day, po). Then, the serum and tissue parameters of the oxidative stress and renal histopathological changes were examined.
Results: In group 2 which received paraquat only, a remarkable increase (P<0.05) was observed in serum creatinine, urea, malondialdehyde (MDA), protein carbonyl, and tumor necrosis factor alpha (TNF-α). Also, there was a significant decrease in renal superoxide dismutase, catalase (CAT), ferric reducing ability of plasma (FRAP) and vitamin C in the second group. Oral administration of silymarin significantly decreased serum urea, creatinine, protein carbonyl, MDA, and TNF-α as well as renal histopathological changes.
Conclusion: The present study suggests that silymarin has anti-inflammatory and nephroprotective effects against nephrotoxicity caused by paraquat
Therapeutic potential of Origanum vulgare leaf hydroethanolic extract against renal oxidative stress and nephrotoxicity induced by paraquat in rats
No full textObjective: Paraquat is a herbicide with potent toxicity in humans and animals. This study aimed to evaluate the protective effects of Origanum vulgare (O. vulgare) leaf extract on the acute nephrotoxicity and renal oxidative stress caused by paraquat.
Materials and Methods: We randomly assigned forty male rats into five groups (G1-G5). The G1 was used as control; G2 only received paraquat (25 mg/kg body weight (bw)/day, po); and G3, G4 and G5 received 25 mg/kg b.w/day oral doses of paraquat and O. vulgare hydroethanolic leaf extract (200, 400, 800 mg/kg bw/day, po, respectively). After 2 weeks, superoxide dismutase (SOD), renal catalase (CAT), vitamin C levels, histopathological changes, and tumor necrosis factor-alpha (TNF-alpha) gene expression as well as serum levels of urea, creatinine (Cr), and protein carbonyl (PC) were determined.
Results: In G2, oral administration of paraquat significantly increased (p<0.05) serum Cr, urea, PC, and renal TNF-alpha gene expression relative to those of the control group. Renal catalase, superoxide dismutase, and vitamin C levels were decreased significantly (p<0.05) in G2 as compared to G1. Administration of O. vulgare leaf extract not only increased the renal vitamin C, CAT, and SOD but also decreased the renal TNF-alpha gene expression, malondialdehyde (MDA), serum urea and creatinine in paraquat-induced nephrotoxicity in rats.
Conclusion: Our results show that O. vulgare leaf extract has protective effects against nephrotoxicity induced by paraquat in rats. It seems that the nephroprotective effects of O. vulgare extract may be related to its antioxidant and anti-inflammatory effects.
Keywords
Author Keywords:Antioxidant; Kidney; Nephrotoxicity; Paraquat; Oxidative stress; TNF-alpha
KeyWords Plus:AQUEOUS EXTRACT; ANTIOXIDANT; INJURY; TOXICITY; KIDNEY; ACETAMINOPHEN; ACTIVATION; INJECTION; MELATONIN; LEAVE
The histopathological changes of liver and testis of Japanese quail chicks fed different levels of dietary L-valine
No full textPolymorphism of some native Sistan grapes assessed by long and short primers for RAPD markers
No full textGrapevines have Bronze ages archive in Sistan area of Iran. In order to study the genetic variation and taxonomic relationships between 6 cultivars of the Sistan grapevines (Vitis vinifera L.) at molecular level, random amplified polymorphic DNA (RAPD) markers were used. The data were subjected to statistical analyses and genetic resemblance was calculated using Dice similarity index. The grapevines related to the different geographic areas of Sistan were assessed by 50 short (10 mer) and long (15-21 mer) primers. Out of 50 primers which were tested, 21 primers gave reproducible results. Selected primers created 497 bands. Resulting profiles showed that the produced bands varied in size from 300 to 3500 base pairs. The numbers of reliable polymorphic fragments for short and long primers were 86 and 334 bands, respectively. In multiplication reaction the items in the size area of 564 to 1904 base pair resulted for short primers and 564 to 4277 base pair for long primers. From the bands calculated a matrix that was analyzed by the unweighted pair group method on arithmetic averages to draw a dendrogram. The population was classified in 4 main groups in which Red Yaghooti and White Yaghooti had the maximum and Red Yaghooti and Laal had the minimum similarity coefficients. In our study, by comparing the results gained from technique long and short primers in RAPD, the potential value of long primers for the production of polymorphism in grapes was identified. © 2007 Asian Network for Scientific Information
A combined CFD modeling with population balance equation to predict pressure drop in venturi scrubbers
No full textA venturi scrubber is one of the most important devices for air pollution control. Although there are different models for predicting the pressure drop in venturi scrubbers, most of them have some defects and cannot predict the pressure drop correctly. In this study, for the first time, an Eulerian–Eulerian computational fluid dynamics (CFD) model is combined with a population balance equation to predict the pressure drop in venturi scrubbers. This simulation takes into account a multiple size group model for droplet dispersion and droplet size distribution, which is based on a population balance equation. Flow field has been calculated by solving the time averaged continuity and Navier–Stokes equations along with the standard k–ε turbulence model. The equations included drag, turbulent dispersion, and buoyancy forces. The calculated pressure drop with and without considering the population balance equation was compared with the experimental data to evaluate the accuracy of the CFD modeling. The size distribution of droplets in the venturi scrubber was studied at different points for different liquid to gas ratios and throat gas velocities. The results show that the maximum break-up of droplets happens at the liquid injection point. Finally, the effects of nozzle diameter and nozzle arrangement on pressure drop in venturi scrubbers were investigated.Azam Sharifi, Ali Mohebb
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