نتایج جستجو برای: hemodynamic response function

تعداد نتایج: 2085600  

Journal: :journal of structural engineering and geo-techniques 2012
a esfandiari

in this paper, a structural damage identification method (sdim) is developed for plate-like structures. this method is derived using dynamic equation of undamaged/damaged plate, in which local change in flexural rigidity is characterized utilizing a damage distribution function. the sdim requires to modal data in the intact state and frequency response of damage state where most of vibration ba...

Journal: :anesthesiology and pain medicine 0
afshin gholipour baradari department of anesthesiology, faculty of medicine, sari imam khomeini hospital, mazandaran university of medical sciences, sari, iran abolfazl firouzian department of anesthesiology, faculty of medicine, sari imam khomeini hospital, mazandaran university of medical sciences, sari, iran; department of anaesthesiology, faculty of medicine, sari imam khomeini hospital, mazandaran university of medical sciences, sari, iran. tel: +98-1133224488, fax: +98-1133275038 alieh zamani kiasari department of anesthesiology, faculty of medicine, sari imam khomeini hospital, mazandaran university of medical sciences, sari, iran mohsen aarabi health sciences research center, mazandaran university of medical sciences, sari, iran seyed abdollah emadi department of anesthesiology, faculty of medicine, sari imam khomeini hospital, mazandaran university of medical sciences, sari, iran ali davanlou department of anesthesiology, faculty of medicine, sari imam khomeini hospital, mazandaran university of medical sciences, sari, iran

conclusions combination of propofol-ketamine may be recommended as an effective and safe induction agent for attenuating hemodynamic responses to laryngoscopy and intubation with better hemodynamic stability. although, further well-designed randomized clinical trials to confirm the safety and efficacy of this combination, especially in critically ill patients or patients with cardiovascular dis...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2010
David Z I Cherney Heather N Reich Judith A Miller Vesta Lai Bernard Zinman Maria G Dekker Timothy J Bradley James W Scholey Etienne B Sochett

Hyperglycemia is associated with hemodynamic changes in type 1 diabetes (DM), acting in part through renin-angiotensin system activation. Since aging is associated with vascular dysfunction in DM, we hypothesized that acute hemodynamic responses to clamped hyperglycemia and infused ANG II would be exaggerated in older adults compared with a group of adolescent/young adults with type 1 DM. Renal...

Journal: :Drug and alcohol dependence 2014
Dorothy J Yamamoto Jeremy Reynolds Theodore Krmpotich Marie T Banich Laetitia Thompson Jody Tanabe

BACKGROUND Substance dependence is associated with impaired decision-making and altered fronto-striatal-limbic activity. Both greater and lesser brain activity have been reported in drug users compared to controls during decision-making. Inconsistent results might be explained by group differences in the temporal profile of the functional magnetic resonance imaging (fMRI) response. While most p...

Journal: :NeuroImage 2003
Axel Riecker Dirk Wildgruber Klaus Mathiak Wolfgang Grodd Hermann Ackermann

A multitude of functional imaging studies revealed a mass activation effect at the level of the sensorimotor cortex during repetitive finger-tapping or finger-to-thumb opposition tasks in terms of either a stepwise or a monotonic relationship between movement rate and hemodynamic response. With respect to subcortical structures of the centralmotor system, there is, by contrast, some preliminary...

Journal: :NeuroImage 2004
V D Calhoun M C Stevens G D Pearlson K A Kiehl

Functional magnetic resonance imaging (fMRI) data are often analyzed using the general linear model employing a hypothesized neural model convolved with a hemodynamic response function. Mismatches between this hemodynamic model and the data can be induced by spatially varying delays or slice-timing differences. It is common practice to desensitize the analysis to such delays by incorporation of...

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