نتایج جستجو برای: health of cornea

تعداد نتایج: 21296627  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1392

abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده زبانهای خارجی 1387

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده مهندسی علوم آب 1393

drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...

Background Keratoconus (KCN) is a bilateral, progressive, and non-inflammatory disorder in the cornea, which results in thinning and protrusion of the cornea. Objective This study aims to determine the effectiveness of using pachymetric progression indices (PPIs) in grading the severity of KCN disease.  Methods In this study, 76 patients with different stages of KCN were enrolled. The severit...

Journal: :International journal of advanced research 2021

Objectives:To determine the level of awareness keratoconus (KC)among students at Taif University in Taif, Saudi Arabia. Subjects and Methods:A cross-sectional study was done on 957 from university, KSAfrom March to August 2021. An online-based survey using a pr-designed questionnaire that included items socio-demographic data, having KC, about KC. Results: 33.8% heard 12.7% it social media, 29....

Arturo Ramirez-Miranda Christine V. Nguyen Martin N. Nakatsu2 Siamak Zarei-Ghanavati1 Sophie X. Deng

Introduction To evaluate the expression patterns of cytokeratin (K) 12, 13, and 19 in normal epithelium of the human ocular surface to determine whether K13 could be used as a marker for conjunctival epithelium. Methods: Total RNA was isolated from the human conjunctiva and central cornea. Those transcripts that had threefolds or higher expression levels in the conjunctiva than the cornea wer...

2016
S. Joseph Antony

Human eye is made of a number of structural components to deliver vision, and cornea is the front window of the eye. Human cornea is made of soft biological materials. It is unfriendly for exposures to the common energy levels of X-ray scans for repeated probing of its structural architecture. Here we study an alternative imaging methodology by using a normal white-light source. By exploiting t...

Introduction: Acanthamoeba is an opportunistic protist, which is ubiquitously distributed in the environment. Infection with Acanthamoeba spp. poses threat to human health, such as, Acanthamoeba keratitis (AK) that is a vision-threatening infection of the cornea. This study aimed to identify the species of Acanthamoeba strains isolated from cornea of keratitis patients by polymerase chain react...

Journal: :cell journal 0

introduction: the cell surface glycoconjugate and extracellular matrix may mediate extracellular signals which decide the fate of the cells during tissue interactions. the proper development of cornea needs cellular interaction between surface epithelium, neural crest and developing lens. materials and methods: 50 pregnant rats were chosen and the embryos from pernatal day11-to 20 and postnatal...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

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