نتایج جستجو برای: normal indices

تعداد نتایج: 635676  

Journal: :Applied Mathematics and Computation 2002
Carmen Coll Màrius J. Fullana Elena Sánchez

Many papers analyze the role of controllability and observability indices of normal linear systems in control theory and their use in the study of structural properties. This work introduces these indices for linear discrete-time descriptor systems. Such indices are studied in two different ways, by means of the state-space approach and using its transfer matrix . A canonical form of the state-...

پایان نامه :0 1371

the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...

2006
JAMES NICHOLLS

The values of the principal indices of reftaction determine the properties of the optical indicatrix. The directions of the ray paths associaGd with a wave normal ultimately alepend on the indices of refraction. The directions of the wave normal and ray paths need not coincide in anisotropic media. To find a ray path for a given wave normal, two items of information must be extracted from the p...

Journal: :Adv. Data Analysis and Classification 2011
Ahmed Albatineh Magdalena Niewiadomska-Bugaj

Correcting a similarity index for chance agreement requires computing its expectation under fixed marginal totals of a matching counts matrix. For some indices, such as Jaccard, Rogers and Tanimoto, Sokal and Sneath, and Gower and Legendre the expectations cannot be easily found. We show how such similarity indices can be expressed as functions of other indices and expectations found by approxi...

Journal: :iranian journal of allergy, asthma and immunology 0
changbiao chen department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030 and department of respiratory, hannan district people's hospital of wuhan, wuhan 430030, china. ran wang department of respiratory, the first affiliated hospital of anhui medical university, hefei 230001, china. sijing zhou department of occupational medicine, third people's hospital of hefei, hefei 230001, china. jianping zhao department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030, china. yongjian xu department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030, china.

bronchial asthma is the common chronic inflammatory disease and is characterized by chronic airway inflammation, airway remodeling, and airway hyperreactivity (ahr). aim of this study was to investigate the effects of mitochondrial atp-sensitive potassium channels (mitokatp) on the proliferation and secretion of human airway smooth muscle cells (hasmcs). hasmcs were treated with the serum from ...

Journal: :journal of current ophthalmology 0
رضا زارعی reza zarei فرامرز انوری faramarz anvari علی عبداللهی ali abdollahi محمود جباروند mahmoud jabbarvand مجتبی خادمیان mojtaba khademian مهدی ملکی mahdi maleki علیرضا مجیدی

purpose : this study was designed to assess and compare the thickness of the peripapillar retinal nerve fiber layer (rnfl) in amblyopic and normal eyes in unilateral strabismic ambelyopia using scanning laser polarimeter. methods : scanning laser polarimetry was performed on 17 patients with unilateral strabismic amblyopia who had an absence of neurologic diseases or glaucoma with a minimum age...

ژورنال: مجله دندانپزشکی 2015
جلالی, یاسمین فرج‌زاده, درویش‌پور, حجت, شیرازی, محسن,

Background and Aims: Cleft lip and palate patients require orthodontic treatments during their childhood and adolescence. Tweed diagnostic triangle as well as cephalometric assessments provides important data regarding the skeletal patterns for the treatment and diagnostic purposes. The present study determined the cephalometric changes of Tweed triangle in the cleft lip and palate patients c...

2016
Zhe Xu Jun Jiang Chun Yang Shenghai Huang Mei Peng Weibo Li Lele Cui Jianhua Wang Fan Lu Meixiao Shen

Ultra-high resolution optical coherence tomography (UHR-OCT) can image the corneal epithelium and Bowman's layer and measurement the thicknesses. The purpose of this study was to validate the diagnostic power of vertical thickness profiles of the corneal epithelium and Bowman's layer imaged by UHR-OCT in the diagnosis of sub-clinical keratoconus (KC). Each eye of 37 KC patients, asymptomatic fe...

Journal: :Croatian medical journal 2005
Luis Tadeo Merce Maria J Barco Santiago Bau Sanja Kupesic Asim Kurjak

AIM To describe the evolution of placental vascularization during a normal course of gestation and the blood flow 3D power Doppler indices obtained by "placental vascular biopsy." METHODS A prospective study was carried out on 99 normal singleton pregnancies from 14 to 40 weeks. Placental vascularization was evaluated by 3D power Doppler ("placental biopsy"). The spherical volume acquired was...

Journal: :iranian journal of blood and cancer 0
khoda morad zandian mohammad pedram fatemeh kianpour ghahfarokhi

background: studies have demonstrated that sickle cell trait can be found in an asymptomatic healthy carrier with normal complete blood count (cbc) and red blood cell (rbc) indices. according to iranian ministry of health bulletin instructions, prenuptial thalassemia screening program (tsp) primarily depends on rbc indices which are measured through a routine cbc. only when these levels are bel...

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