BACKGROUND To compare the incidence of rainbow glare (RG) after femtosecond laser assisted-LASIK (FS-LASIK) using the upgraded FS200 femtosecond laser with different flap cut parameter settings. METHODS A consecutive series of 129 patients (255 eyes) who underwent FS-LASIK for correcting myopia and/or astigmatism using upgraded WaveLight FS200 femtosecond laser with the original settings was ...

INTRODUCTION Previous comparison studies of the Kalon and HerpeSelect 2 ELISA IgG assays on sub-Saharan samples have found differences in the sensitivity and specificity of these assays. Using longitudinal samples from an HIV prevention study, we compared both assays and determined the HSV-2 prevalence and incidence in a South African young female population at elevated risk of acquiring HIV. ...

This paper is devoted to the exact resolution of a strongly NP -hard resource-constrained scheduling problem, the Process Move Programming problem, which arises in relation to the operability of certain high-availability real-time distributed systems. Based on the study of the polytope defined as the convex hull of the incidence vectors of the admissible process move programs, we present a bran...

Petri Nets can represent static structure and dynamic change in a system, and reflect the state of a system and the development of event. It can express spread relationship of faults and identify the minimal cut sets (MCS) according to the relationship between inputs and outputs implied in the Incidence Matrix of Petri Nets. Petri Nets can also be used for qualitative analysis according to the ...

e∈F x(e). M denotes the set of all perfect matchings of G. χ denotes the incidence vector of M . Cuts: A cut of G is a subset of E that is the coboundary ∂(S) of some subset S of V . For a cut C := ∂(S), S and S are the shores of C. A cut is trivial if one of its shores is a singleton. A cut is odd if both its shores have odd cardinality. Note: This is the notation used in Bondy and Murty’s boo...

e∈F x(e). M denotes the set of all perfect matchings of G. χ denotes the incidence vector of M . Cuts: A cut of G is a subset of E that is the coboundary ∂(S) of some subset S of V . For a cut C := ∂(S), S and S are the shores of C. A cut is trivial if one of its shores is a singleton. A cut is odd if both its shores have odd cardinality. Note: This is the notation used in Bondy and Murty’s boo...

BACKGROUND Overweight and obesity increase the risk of elevated blood pressure; most of the studies that serve as a background for the debates on the optimal obesity index cut-off values used cross-sectional samples. The aim of this study was to determine the cut-off values of anthropometric markers for detecting hypertension in Chinese adults with data from prospective cohort. METHODS This s...

background : skin cancer is the most common malignancy in the world. thus, the aim of this study was to determine the incidence trend of skin cancer in isfahan province, iran. methods: the present cross-sectional study was conducted using data registered during 2004-2008 in the disease management center and cancer registry system of the ministry of health and medical education. the trend of ski...