نتایج جستجو برای: optic effect

تعداد نتایج: 1682311  

Journal: :بینا 0
علیرضا دهقانی ar dehghani اصفهان- خیابان صفه- بیمارستان الزهرا وحید شایگان نژاد v shaygannejad اصفهان- خیابان صفه- بیمارستان الزهرا فریبرز فردوسی f ferdosi اصفهان- خیابان صفه- بیمارستان الزهرا آذین شایگان فر a shayganfar

purpose: to determine the clinical and paraclinical features of multiple sclerosis (ms) in patients presenting for the first time with optic neuritis. methods:  in this descriptive study, 35 patients with clinical evidence of optic neuritis were enrolled. our evaluation included a neurological examination, visual evoked potentials (vep), brainstem-auditory evoked potentials (baep), and brain mr...

Journal: :Optics letters 2003
Fei Xu Jun Liao Cheng-Shan Guo Jing-Liang He Hui-Tian Wang S N Zhu Zhenlin Wang Y Y Zhu N B Ming

We present a method for controlling the efficiency of direct third-harmonic generation in quasi-periodic optical superlattices by means of the electro-optic effect. The calculated results manifest that this method is extremely efficient for achieving high efficiency of direct third-harmonic generation in predesigned quasi-phase-matched coupled parametric processes and is feasible at any given f...

2018
Max D Knickmeyer Juan L Mateo Priska Eckert Eleni Roussa Belal Rahhal Aimee Zuniga Kerstin Krieglstein Joachim Wittbrodt Stephan Heermann

The optic fissure is a transient gap in the developing vertebrate eye, which must be closed as development proceeds. A persisting optic fissure, coloboma, is a major cause for blindness in children. Although many genes have been linked to coloboma, the process of optic fissure fusion is still little appreciated, especially on a molecular level. We identified a coloboma in mice with a targeted i...

2017
Xuyou Li Pan Liu Xingxing Guang Zhenlong Xu Lianwu Guan Guangchun Li

Improving the performance of interferometric fiber optic gyroscope (IFOG) in harsh environments, such as magnetic field and temperature field variation, is necessary for its practical applications. This paper presents an investigation of Faraday effect-induced bias error of IFOG under varying temperature. Jones matrix method is utilized to formulize the temperature dependence of Faraday effect-...

2014
Louise Alessandra Mesentier-Louro Camila Zaverucha-do-Valle Almir Jordão da Silva-Junior Gabriel Nascimento-dos-Santos Fernanda Gubert Ana Beatriz Padilha de Figueirêdo Ana Luiza Torres Bruno D. Paredes Camila Teixeira Fernanda Tovar-Moll Rosalia Mendez-Otero Marcelo F. Santiago

Bone marrow-derived cells have been used in different animal models of neurological diseases. We investigated the therapeutic potential of mesenchymal stem cells (MSC) injected into the vitreous body in a model of optic nerve injury. Adult (3-5 months old) Lister Hooded rats underwent unilateral optic nerve crush followed by injection of MSC or the vehicle into the vitreous body. Before they we...

Journal: :Investigative ophthalmology & visual science 2003
Xiaoping Qi Alfred S Lewin William W Hauswirth John Guy

PURPOSE Reactive oxygen species (ROS) are suspected to play a pivotal role in the pathogenesis of Leber hereditary optic neuropathy (LHON), caused by mutated complex I subunit genes. It seems surprising that optic neuropathy has not been described in animals with a knockout of genes encoding critical anti-ROS defenses. If ROS have a role in the optic nerve injury of LHON, then increasing mitoch...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید