نتایج جستجو برای: instability indicators

تعداد نتایج: 197743  

Journal: :Expert Systems With Applications 2023

Norms of Persistent Homology introduced in topological data analysis are seen as indicators system instability, analogous to the changing predictability that is captured financial market uncertainty indexes. This paper demonstrates norms from markets significant explaining uncertainty, whilst macroeconomic only explainable by volatility. Meanwhile, volatility insignificant determination when en...

Journal: :دانش سیاسی 0
محمدباقر خرمشاد دانشیار گروه علوم سیاسی دانشگاه علامه طباطبایی (نویسنده مسئول). عبدالمحمود محمدی لرد دانشجوی دکتری علوم سیاسی دانشگاه علامه طباطبایی

most theories in social sciences have aspects of causality, but understanding the causes of social phenomena is not possible through statistical correlation tests. to overcome this problem, fuzzy qualitative comparative analysis was developed to identify the cause of social phenomena. having qualitative roots, this method tests the necessary and sufficient causes for the emergence of a social p...

Journal: :medical journal of islamic republic of iran 0
mehdi nikbahkt dastjerdi dept. of anatomical sciences, medical school, isfahan university of medical sciences, isfahan,iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences) masoumeh faghani dept. of anatomical sciences, medical school, guilan university of medical sciences, rasht, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی گیلان (guilan university of medical sciences) mansour salehi dept. of genetics, medical school, isfahan university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences) mohammad rabbani dept. of biotechnology, pharmacy school, isfahan university of medical sciences.سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences)

abstract   background: the polymorphic variants at codon 72 of the p53 gene, encoding either proline or arginine at residue 72, produce marked change in the structure of p53. from the evidence that the dnamismatch repair system and p53 interact to maintain genomic integrity, we hypothesized that the codon 72 variation may influence the prevalence of microsatellite instability a feature of malig...

Journal: :iranian journal of basic medical sciences 0
sahar moghbeli nejad department of medical genetics, school of medical sciences, tarbiat modares university, tehran, iran national cell bank of iran, pasteur institute, tehran, iran. hossein mozdarani department of medical genetics, school of medical sciences, tarbiat modares university, tehran, iran mohammad ali shokrghozar national cell bank of iran, pasteur institute, tehran, iran. vahideh farahat national cell bank of iran, pasteur institute, tehran, iran.

objective(s) the main objective of this study was to investigate the status of chromosome stability in 3 human-mouse hybridoma cell lines over a period of time in various passages. materials and methods metaphase spreads from 3 human-mouse cell lines (hf2x653, spmo-4 and f3b6) that had been cultured in 4 successive passages, from 1 to 4 weeks, were prepared and analyzed. metaphase chromosomes s...

Journal: :asian journal of sports medicine 0
elahe faraji department of sport medicine and corrective exercise, ferdowsi university of mashhad, mashhad, iran; department of sport medicine and corrective exercise, ferdowsi university of mashhad, mashhad, iran. hassan daneshmandi department of sport medicine and corrective exercise, university of guilan, rasht, iran ahmad ebrahimi atri department of sport medicine and corrective exercise, ferdowsi university of mashhad, mashhad, iran vahid onvani azad university, mashhad branch, mashhad, iran faride rezaee namjoo department of sport medicine and corrective exercise, ferdowsi university of mashhad, mashhad, iran

purpose ankle sprain is one of the most common injuries among athletes and instability and injury to this joint is responsible for long time loss of physical and recreational activity. also, it can impose high costs to sport teams. prevention of this injury is an important concern of practice and rehabilitation. one way of reducing the possibility of ankle joint injury is using an ankle orthosi...

Journal: :medical journal of islamic republic of iran 0
keikhosrow firoozbakhsh from the department of orthopaedics and rehabilitation, university of new mexico school of medicine, albuquerque, new mexico, u.sa. fred v. orcuit

the cadaver spine motion segment behavior under torsional load was evaluated with the disc intact, with partial anterior discectomy and with spacer insertion. the results of this study explain how anterior lumbar discectomy and interbody fusion (alif) affects the torsional stability of the motion segment. the pseudarthrosis rate of the anterior lumbar discectomy and interbody fusion (alif) is k...

Journal: :Measurement & Control 2023

A coupled Two-Dimension Convolutional Neural Network-Gated Recurrent Unit (2DCNN-GRU) model is proposed to evaluate and predict the hunting instability of high-speed railway vehicles in this paper. First, vibration accelerations four measuring points on surface bogie frame a vehicle good working condition with are obtained through line test simulation. The acceleration data under different cond...

Journal: :iranian journal of pharmaceutical research 0
hosein shabaninejad departments of health services management, school of health management and information sciences, iran university of medical sciences, tehran, iran. mohammad hossein mirsalehian faculty of entreprenurship, tehran university, tehran, iran. gholamhossein mehralian department of pharma management and pharmacoeconomics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

regarding to rapidly changing and highly competitive business environment it will become increasingly important for organizations to measure their performances appropriately. with respect to special characteristics of pharmaceutical industry and lack of reported performance measurement, this study tries to design an integrated performance measurement model for pharmaceutical companies. for gene...

Journal: :asian journal of sports medicine 0
mohammad-reza golbakhsh sina hospital tehran university of medical sciences, tehran, iran majid attar hamidi sina hospital tehran university of medical sciences, tehran, iran bahar hassanmirzaei sports medicine research center, tehran university of medical sciences, tehran, iran; sports medicine research center, no 6, al-e-ahmad highway, tehran, iran. p.o. box: 14395-578.

purpose many factors such as lumbar instability and spinopelvic alignment are associated with low back pain. our purpose was to analyze the pelvic incidence - one of spinopelvic alignment parameters- and spine instability correlations in patients with chronic low back pain. methods fifty-two patients suffering from chronic low back pain entered this case control study. lateral spine radiography...

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