purpose: to evaluate corneal hysteresis and corneal resistance factor in penetrating keratoplasty grafts in a group of keratoconic eyes using the ocular response analyzer (ora) and to evaluate the relationship between donor size, donor-recipient disparity and central graft thickness (cgt), and ora parameters. methods: this cross-sectional study was conducted on 34 eyes of 34 keratoconus patient...

Physical activity (PA) plays a vital role in children’s physical and mental health. The built, natural, socio-demographic environmental variables affect PA behaviors various ways. However, few studies focus on systematically measuring the spatiality to enhance research. We propose Access Disparity (PAD) index for children. This study aims design, test, apply an integrated approach PAD index. ad...

background:the present study compared the differences between survivals of patients with colorectal cancer according to their ethnicity adjusted for other predictors of survival. methods: in this prospective cohort study patients were followed up from definite diagnosis of colorectal cancer to death. totally, 2431 person-year follow-ups were undertaken for 1127 colorectal cancer patients once e...

Basis risk or residual arising from disparity between an index’s estimate of losses and actual is inherent in index-based insurance products. We approximate basis as the false negative probability (FNP) within pasture, rangeland, forage (PRF) rainfall index for south-central coastal region California. FNP on average that at least one two selected coverage intervals will fail to provide indemnit...

The ability to mentally rotate objects in space is a fundamental cognitive capacity. Previous studies showed that the time image of figure match another increases progressively with angular disparity. It remains unclear whether this increase response disparity could reflect increased processing operations or more effort instead sustained use ‘rotate’ mechanism without change workload. We collec...