purpose: to determine the effect of induced myopia and hyperopia using soft contact lenses on optic disc parameters measured by fourier domain optical coherence tomography (fd-oct) in emmetropic persons. methods: in a quasi-experimental self controlled study, 57 normal emmetropic participants 18-42 years of age were studied. each subject underwent a complete ophthalmic examinations including me...

purpose : evaluating the effects of memantine on visual function after scleral buckling for rhegmatogenous retinal detachment (rrd) methods : in a double blind prospective randomized clinical trial, 61 patients with clinical diagnosis of less than 4 weeks macula-off rrd who had successful scleral buckle surgery had been selected and divided into two randomized groups. thirty of them received 5 ...

concerns regarding the trans-pacific partnership (tpp) have raised awareness about the negative public health impacts of trade and investment agreements. in the past decade, we have learned much about the implications of trade agreements for public health: reduced equity in access to health services; increased flows of unhealthy commodities; limits on access to medicines; and constrained policy...

the main aim of this study was to investigate the relationship of students' social capital components and entrepreneurship intention. the statistical population of this study consisted of all students of university college of agriculture and natural resources, university of tehran (n=2600) among which 155 students where accessed based on cochran formula and through convenient sampling. data wer...

diagnosis of corneal diseases is possible by measuring and evaluation of corneal thickness in different layers. thus, the need for precise segmentation of corneal layer boundaries is inevitable. obviously, manual segmentation is time‑consuming and imprecise. in this paper, the gaussian mixture model (gmm) is used for automatic segmentation of three clinically important corneal boundaries on opt...

purpose : to report the evaluation of the treatment response in choroidal hemangioma with application of enhanced depth imaging optical coherence tomography (edi-oct) technique case report : a 73-year-old woman with a circumscribed choroidal hemangioma in the posterior pole of her left eye underwent photodynamic therapy and intravitreal injection of bevacizumab. edi-oct obtained from the affect...

we study the eigenenergies and eigenfunctions of the ground and first excited states (gfes) of an electron strongly coupled to the lo-phonon in an asymmetry quantum dot (aqd) under an applied electric field by using a variational method of the pekar type (vmpt). this aqd two-level system may be viewed as a single qubit. when the electron is in the superposition state (ss) of the gfes, the effec...

background: headache is one of the most disturbing symptoms with common neurological signs. variations in optic nerve perfusion quality or retinal microcirculation may end up in ganglion cell damage in patients with migraine. methods: sixty patients diagnosed with migraine and thirty normal individuals were evaluated in groups including migraine with aura, migraine without aura and controls. re...

This thesis proposes a new requirement that probabilistic measures of coherence should ideally satisfy. This requirement is called ‘coherence preservation’. Probabilistic measures of coherence build on the idea that coherence is the mutual support between elements of a set. Using the requirement of coherence preservation, one may reevaluate mainstream probabilistic coherence measures, and draw ...

We propose a new family of coherence monotones, named the generalized coherence concurrence (or coherence k-concurrence), which is an analogous concept to the generalized entanglement concurrence. The coherence k-concurrence of a state is nonzero if and only if the coherence number (a recently introduced discrete coherence monotone) of the state is not smaller than k, and a state can be convert...