نتایج جستجو برای: cox models

تعداد نتایج: 943575  

Journal: :Journal of Systems Science and Information 2016

Journal: :IEEE Transactions on Wireless Communications 2021

We introduce a general framework for the modeling and analysis of vehicular networks by defining street systems as random 1D subsets $\mathbb{R}^{2}$. The system, in turn, specifies intensity measure Cox process vehicles, i.e., vehicles form independent Poisson point processes on each street. Models this Coxian can characterize streets different lengths orientations forming intersections or T-j...

Journal: :iranian journal of pharmaceutical research 0
ozlem ozturk bilgin konak hospital, medical biochemistry department, izmit, turkey. duygu kumbul doguc suleyman demirel university, medical faculty, medical biochemistry department, isparta, turkey. irfan altuntas mugla university, medical faculty, medical biochemistry department, mugla, turkey. recep sutcu katip celebi university, medical faculty, medical biochemistry department, i̇zmir, turkey. namik delibas hacettepe university, medical faculty, medical biochemistry department, ankara, turkey.

several studies point to an important function of cyclooxygenase (cox) and prostaglandin signaling in models of synaptic plasticity which is associated with n-methyl-d-aspartate receptors (nmdars). cyclooxygenase gene is suggested to be an immediate early gene that is tightly regulated in neurons by nmda dependent synaptic activity. nonsteroid antiinflammatory drugs (nsaids) exert their antiinf...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده علوم 1393

سرطان سومین عامل مرگ در ایران است و سالانه حدود 30 هزار نفر در ایران بر اثر ابتلا به انواع سرطان جان خود را از دست می دهند. سرطان مری یا esophagus cancer در بین سرطان ها رتبه ششم از نظر شیوع و از نظر مرگ و میر در رتبه نهم سرطان ها دارد. هدف از این مطالعه ارزیابی بررسی بیان ژن پروستاگلاندین اندوپروکسید سنتتاز 2 (cox-2) در سرطان مری می باشد. cox ها (cyclo-oxygenases)، cox-1و cox-2، آنزیم های نظار...

2009

The piecewise-constant exponential model is a semi-parametric continuous time duration model.1 The model is semi-parametric in the sense that the shape of the hazard rate with respect to time is not specified a priori but is determined by the data. The basic idea underlying the PCE model is that the duration time can be divided up into discrete units in each of which the hazard rate is assumed ...

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