نتایج جستجو برای: قرارداد نفتی ایران ipc

تعداد نتایج: 143129  

یکی از ویژگی‌های شاخص الگوی جدید قراردادهای نفتی ایران، لزوم شراکت شرکت‌های خارجی با شرکت‌های ایرانی و مشارکت در اجرای عملیات نفتی است. بستر اصلی این مشارکت، قرارداد عملیات مشترک (ق.ع.م) است که میان اعضای کنسرسیوم تشکیل‌شده از شرکت (های) خارجی و شرکت (های) ایرانی منعقد می‌گردد. اعضای حاضر در ق.ع.م، به دو گروه تقسیم می‌شوند: عامل و غیرعامل. وظیفۀ اصلی عامل، تصدی و مدیریت روزانۀ عملیات نفتی و وظی...

2017
Isabela Coelho Marocolo Gustavo Ribeiro da Mota André Monteiro Londe Stephen D. Patterson Octávio Barbosa Neto Moacir Marocolo

This study evaluated the acute effect of ischemic preconditioning (IPC) on a high-intensity intermittent exercise performance and physiological indicators in amateur soccer players. Thirteen players (21.5 ± 2 yrs) attended three trials separated by 3-5 days in a counterbalanced randomized cross-over design: IPC (4 × 5-min occlusion 220 mmHg/reperfusion 0 mmHg) in each thigh; SHAM (similar to th...

2013
D.Y. Xia W. Li H.R. Qian S. Yao J.G. Liu X.K. Qi

Sublethal ischemic preconditioning (IPC) is a powerful inducer of ischemic brain tolerance. However, its underlying mechanisms are still not well understood. In this study, we chose four different IPC paradigms, namely 5 min (5 min duration), 5×5 min (5 min duration, 2 episodes, 15-min interval), 5×5×5 min (5 min duration, 3 episodes, 15-min intervals), and 15 min (15 min duration), and demonst...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1391

از زمان پیدایش صنعت نفت تا کنون طرفین به جهت سرمایه گذاری نفتی از 3 الگوی قراردادی بهره برده اند. پنجاه سال نخست قرن بیستم، دوره اعطای امتیاز به شرکت های نفتی اروپایی و آمریکایی بود. آنان در چارچوب قراردادهای امتیازی، حقوق وسیعی را در خاک کشورهای نفت خیز بدست می آوردند. در اواسط قرن بیستم با افزایش موج قیام ملل برای استقلال کشورشان و ملی نمودن صنعت نفت، افزایش رقابت بین شرکت های نفتی خارجی جهت ...

Journal: :Molecular medicine 2010
Juan Zhang Hong-Jun Bian Xiao-Xing Li Xiao-Bo Liu Jun-Ping Sun Na Li Yun Zhang Xiao-Ping Ji

We and others have reported that Rho-kinase plays an important role in the pathogenesis of heart ischemia/reperfusion (I/R) injury. Studies have also demonstrated that the activation of Rho-kinase is reversed in ischemic preconditioning (IPC). However, the mechanisms by which Rho-kinase is increased in I/R and reversed in IPC are not thoroughly understood. In female Wistar rats, we created I/R ...

2015
Katie J Schenning Sharon Anderson Nabil J Alkayed Michael P Hutchens

In preclinical investigations, ischemic preconditioning (IPC) protects kidneys from ischemia/reperfusion injury. The direct effects of IPC on glomerular endothelial cells have not been studied in detail. Most investigations of IPC have focused on healthy cells and animals, and it remains unknown whether IPC is renoprotective in the setting of medical comorbidities such as diabetes. In this stud...

2012
Jung Ah Lee Jin Woo Choi Jang Hyeok In Hong Soo Jung Yong Shin Kim Yeon Soo Jeon Yoo Jin Kang Dae Woo Kim Yong Gul Lim Jae Hee Park Jin Deok Joo

We previously demonstrated that there are acute and delayed phases of renal protection against renal ischemia and reperfusion (IR) injury with renal ischemic preconditioning (IPC). This study assessed whether hepatic IPC could also reduce distant renal IR injury through the blood stream-mediated supply of reactive oxygen species (ROS). Male C57BL/6 mice were randomly divided into four groups: g...

2014
S T Navalkar J W van Wingerden M van Kuik

Individual pitch control (IPC) for reducing blade loads has been investigated and proven successful in recent literature. For IPC, the multi-blade co-ordinate (MBC) transformation is used to process the blade load signals from the rotating to a stationary frame of reference. In the stationary frame of reference, the yaw error of a turbine can be appended to generate IPC actions that are able to...

2004
Shinji Okubo Yujirou Tanabe Kenji Takeda Michihiko Kitayama Seiyu Kanemitsu Rakesh C. Kukreja Noboru Takekoshi

Okubo, Shinji, Yujirou Tanabe, Kenji Takeda, Michihiko Kitayama, Seiyu Kanemitsu, Rakesh C. Kukreja, and Noboru Takekoshi. Ischemic preconditioning and morphine attenuate myocardial apoptosis and infarction after ischemia-reperfusion in rabbits: role of -opioid receptor. Am J Physiol Heart Circ Physiol 287: H1786–H1791, 2004; 10.1152/ajpheart.01143.2003.—We examined whether ischemic preconditio...

2012
Suma P Kunuthur Mihaela M Mocanu Brian A Hemmings Derek J Hausenloy Derek M Yellon

Phosphatidyl-inositol-3-kinase (PI3K)-Akt pathway is essential for conferring cardioprotection in response to ischaemic preconditioning (IPC) stimulus. However, the role of the individual Akt isoforms expressed in the heart in mediating the protective response to IPC is unknown. In this study, we investigated the specific contribution of Akt1 and Akt2 in cardioprotection against ischaemia-reper...

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