Showing 4 results for Nasirzade
Volume 3, Issue 3 (summer 2021)
Abstract
Coronaviruses were discovered in the 1960s, and continued to be studied until the mid-1980s. The virus is naturally prevalent in mammals and birds, yet seven human-transmitted coronaviruses have been discovered so far; the most important of these, SARS Acute Respiratory Syndrome or acute respiratory syndrome, was a dangerous viral respiratory disease of genetic origin caused by coronavirus and from November 2002 to July 2003, the outbreak in Southern China caused 8098 cases. Possible disease and death of 774 people in 17 countries, and now since December 2019, another and more dangerous type called COVID-19 has spread with the human epidemic in Wuhan, China and in a short time has spread all over the world. China was the source of the virus, as well as the first country to stop it's spread to a large extent, but other countries failed to contain the virus despite their ability to contain it. Why? The answer is simple: "It is a matter of policy and approach, not power"! Another issue is "change"; as cities begin to recede and move toward recovery, the consequences of the epidemic will lead to new norms. In this article, we have tried to study the process of crisis management in several countries of the world is facing this virus and the extent of damages to the citizens of these countries until April 30, 2021.
P. Kasmaei , N. Rouhani-Tonekaboni , A. Ashouri, P. Mirzajanzade, M. Nasirzade , M. Jahangir Blourchian ,
Volume 6, Issue 3 (Summer 2018)
Abstract
Aims: Pre-adolescence is an essential time for the formation and stability of behaviors. The aim of this study was to determine the correlated factors with nutritional behaviors in elementary school students.
Instrument and Methods: In descriptive-analytic study, 300 fifth-grade elementary schools students of Talesh and Fouman cities of Guilan Province, Iran were selected using the random cluster method, in 2017. Data were collected by researcher-made questionnaire. The one way analysis of variance, two independent samples t-test, Spearman correlation coefficient, and SPSS 21 software were used.
Findings: There was no significant relationship between demographic characteristics and nutritional behaviors (p>0.05) but father's education level had a significant reverse correlation with barriers (r=-0.147; p<0.05). The most important barriers of having breakfast during the week in school were lack of appetite and adequate time, and on vacation, was to be alone. Barriers were disliked milk, embarrassment of taking bread and cheese as a snack, and the lack of fruits and vegetables at home (p<0.05). The important cues to action were mothers (76.5%), fathers (44.5%) and then health workers and teachers, respectively.
Conclusions: Barriers play an important role in nutritional behaviors. The most important barriers of having breakfast during the week in school are lack of appetite and adequate time, and on vacation, being alone.
Volume 6, Issue 4 (Winter 2022)
Abstract
موضوع تحقیق: یکی از روشهای نوین در فرآیندهای افزایش بازیافت نفت از مخازن هیدروکربوری، بکارگیری امواج اولتراسونیک میباشد. در این تحقیق با استفاده از امواج اولتراسونیک و اعمال آن در یک مخزن نمونه مقیاس بزرگ، به بررسی اثر آن در ازدیاد برداشت نفت به روش عددی پرداخته شده است.
روش تحقیق: در این تحقیق فرایند مدلسازی با استفاده از نرم افزار متلب انجام شده است. ابتدا با تعیین محیط متخلخل میزان افزایش فشار حاصل از موج اولتراسونیک با توجه به حل معادلات صوت ( هلمهولتز) توسط جعبه ابزار k-waves متلب بررسی شده و سپس با تعیین مخزن نمونه و حل معادلات حاکم بر مخزن میزان تغییرات فشار حاصل از جریان سیال در حضور چاه تولیدی به بررسی اثر موج اولتراسونیک در ازدیاد برداشت نفت پرداخته میشود. در نهایت با توجه به تولید تجمعی در یک زمان مشخص از چاه تولیدی و تعیین بازیافت نفت از مخزن در حضور موج، به بررسی اثر پارامترهای موقعیت مکانی چاه و فاصله آن از منبع تولید موج، زمان شروع تولید موج، شیوهای اعمال موج (پالسی و پیوسته)، در یک فرکانس و توان بهینه پرداخته میشود.
نتایج اصلی: با توجه به نتایج بدست آمده از مدلسازی، هرچقدر زمان شروع اعمال موج به روزهای اول تولید نزدیکتر باشد، میزان بازیافت نفت نیز بیشتر میشود؛ به گونه ای که با شروع اعمال موج اولتراسونیک تحت توان 5 کیلووات و فرکانس 20 کیلوهرتز همزمان با تولید نفت چاه از روز اول، بازیافت نفت نسبت به بازیافت نفت در حالتی که شروع اعمال موج از روزهای پنجاه و نود باشد، به ترتیب %5/4 و %8 بیشتر شده است. بازیافت نفت درصورتی که موج در یک زمان مشخص بصورت پیوسته به مخزن اعمال شود به میزان 8/1% نسبت به حالتی که در همان زمان بصورت پالسی اعمال شود، بیشتر است .نتایج مدلسازی نشان میدهد که هرچقدر فاصله منبع تولید موج با چاه تولیدی کمتر باشد، افت فشار محدوده چاه کمتر شده و بازیافت نفت افزایش میابد. بطوری که طبق نتایج اگر منبع تولید موج در فاصله 200 فوتی از چاه تولیدی قرار گرفته باشد، نسبت به فاصله 1800 فوتی از چاه بازیافت نفت % 1/7 افزایش میابد.
M.r. Miraki, M. Nasirzadeh, A.r. Sayadi , M. Abdolkarimi,
Volume 12, Issue 4 (Fall 2024)
Abstract
Aims: One of the effective factors in preventing the complications of diabetes is stress management. The purpose of this study was to evaluate the effect of an intervention based on Lazarus’ Transactional Model on the level of stress in patients with type 2 diabetes.
Materials & Methods: This quasi-experimental study was conducted among 80 patients with type 2 diabetes. Stress levels, coping methods, and hemoglobin A1C were evaluated before the intervention and three months afterward. In the intervention group, five training sessions were held based on the strategies outlined in the model. The data were analyzed using analysis of variance, Pearson’s correlation coefficient, and analysis of covariance.
Findings: The perceived stress score in the intervention group decreased after the intervention. The results of the Pearson correlation test indicated a negative and significant relationship between the stress score and confrontive and optimistic coping strategies. Additionally, there was a positive and significant relationship between the stress score and methods of emotional adaptation and fatalism (p<0.001). Analysis of covariance revealed that, after adjusting for group effects, the intervention had a significant impact on the use of adaptive methods and stress levels (p<0.001).
Conclusion: Training and interventions aimed at utilizing coping approaches based on Lazarus’ Transactional Model of stress and adaptation is effective in controlling and reducing stress in patients with type 2 diabetes.
