photorefractive keratectomy (prk) is a safe and effective surgical keratorefractive technique which is done with the application of mitomycin-c (mmc) in cases of high myopia to prevent the formation of corneal haze this study was conducted to evaluate 3-year visual acuity and quality outcomes of prk-mmc in high myopia. this before-after study was conducted on 20 individuals (40 eyes) with myopi...

objectives: the visual-motor skill is one of the major factors in the learning process. visual-spatial and visual analysis skills are components of the visual motor skill. any deficiency in visual-motor skills and their components often causes problem in writing and learning processes in children. the aim of this study was to investigate the effect of occupational therapy (o.t.) intervention on...

The dump, with the compact rock platform and high steep loose slope that is formed during coal mining, most serious area of soil erosion in a surface mine. Ground fissures are typical geological hazard mining areas. However, effect ground on remains unclear. Rainfall experiments were conducted to determine varying characteristics wetting front, runoff sediment production, denudation rate, as we...

according to reports about 30-thousand people spent watching television had the impact on their memory and recall that the results showed no differences between men and women. the people who watched less than an hour a day did better at every memory function. as these contributors watched negative political ads, physiological responses indicated that their body was reflexively preparing to move...

This note reports the physical and mechanical properties of two postwildfire sands collected in Southern California chemically induced hydrophobic sand. Hydrophobicity decreases attraction between water molecules solid surfaces manifests a modification hydraulic soil that lead to rain erosion mudflows. Wildfires induce different hydrophobicity levels shallow layers based on fire severity, veget...

Vertical contrasts in permeability, particularly where permeable surface materials overlie impermeable materials that prohibit the downward infiltration of groundwater, concentrate the groundwater and become an important focus of landslides that are triggered by intense rainfall. Just such a hydrogeological structure is present within the pyroclastics in Nishigo Village in Fukushima Prefecture,...

In ma ny high-latitude areas, slushflows occ ur frequently during th e snowmelt period but inform ation on the initiat ion mechani sm is rare. Field observations and measurements of slush fl ows in northwestern Spitsbe rgen and in northern Sweden demonstrate the role of meltwater accumulation and the hydraulic pressure gradient in the rel ea se process. Snow metamorphism is revea led to be of m...

In physics, objects can be divided into rigid and soft objects according to the object deformation capacity. Similarly, geo-object can also be classified into rigid geo-objects (e.g., building, urban) and soft geo-objects (e.g., mudflow, water, soil erosion). There are three types of approaches for 3D GIS modeling, i.e., surface-based, volume-based, and hybrids in terms of geometry. These appro...

This article provides information on the stability of natural dam Lake Kaiyndy in study area. is located middle part basin and fed by melted snow rainwater. The flow water from lake carried out surface. belongs to high category mudflow hazard. During technogenic development this territory, one should consider negative impact additional load sides canyon not expand territory towards river. In ev...