نتایج جستجو برای: optic Effect
تعداد نتایج: 1682311 فیلتر نتایج به سال:
abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...
Optic neuritis an inflammatory disorder of the optic nerve inflammation is usually in young’s with symptoms of eye pain and vision loss that occurs is a common symptom of MS. Optic neuritis is one of the first symptoms of MS that observable into disorders in white matter of cerebral cortex. The risk of MS in patients with optic neuritis during 2 years 20% in 15 years, 45-80% is calculated...
Background :There is not any data available about the effect of high bar pressure condition on intracranial pressure. In this study, the effect of diving on the optic nerve and sheath diameters as non-invasive markers of intracranial pressure has been investigated. Methods : Twenty professional male divers from twenty one volunteers were chosen for this cross-sectional study. Only one perso...
optic neuritis an inflammatory disorder of the optic nerve inflammation is usually in young’s with symptoms of eye pain and vision loss that occurs is a common symptom of ms. optic neuritis is one of the first symptoms of ms that observable into disorders in white matter of cerebral cortex. the risk of ms in patients with optic neuritis during 2 years 20% in 15 years, 45-80% is calculated. in ...
Background: Optic neuritis is an inflammation of the optic nerve. Because of importance of vision for human, management of optic neuritis is an important issue in neurology. Objectives: This study aimed at assessing the effect of oral steroid treatment after intravenous (IV) methylprednisolone therapy on demyelinating optic neuritis. Materials & Methods: 60 Patients with first episode of acut...
Having precise hysterics loop of thin ferroelectric and ferromagnetic layers for optical switching and optical storages are important. A hysterieses loop can be achieved from a phenomenon call the magneto-optic effect. The magneto-optic effect is the rotation of a linear polarized electromagnetic wave propagated through a ferromagnetic medium. When light is transmitted through a layer of magnet...
background :there is not any data available about the effect of high bar pressure condition on intracranial pressure. in this study, the effect of diving on the optic nerve and sheath diameters as non-invasive markers of intracranial pressure has been investigated. methods : twenty professional male divers from twenty one volunteers were chosen for this cross-sectional study. only one person ...
Background and purpose: Optic neuritis is one of the appearances of Multiple Sclerosis (MS). Progesterone has a protective effect in central nervous system, so, in this study we aimed at investigating the effect of progesterone on myelin repair of the optic chiasm in male rats by studying the genes expression of Olig 2 (marker of oligodendrocyte precursor cells), GFAP (marker of astrocyte...
PURPOSE To study the 360-degree barrier effect of an intraocular lens (IOL) with a square edge at the optic and an enhanced square edge at the optic-haptic junctions (Rayner 570C C-flex) on centripetal migration of lens epithelial cells (LECs) over a 2-year period. SETTING Department of Ophthalmology, Scarborough Hospital, Scarborough, United Kingdom. METHODS In a prospective study of 40 co...
In this paper the simulation and design of a quantum-film electro-optic switch is considered. This photonic device, is made from a new organic dipolar material called MNA or 2-methyl-4 nitroaniline, which possesses a high merit in comparison with it's inorganic counterparts (e.g. LiNbO3, GaAs, InSb, Quartz, etc). Montecarlo method is used to simulate the photon-it-electron interaction in this m...
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