Class III malocclusion is characterized by anterior posterior dental disharmony, either with or without skeletal discrepancies. Facial esthetics may be compromised to a greater or lesser degree, depending on the magnitude of the discrepancy, and is one of the main factors motivating individuals to seek orthodontic treatment. In adult patients, therapy may be performed by means of dental compens...

Regarding evaluating disaster risks in Iran’s West Kurdistan area, the multi-layer perceptron (MLP) neural network was upgraded with two novel techniques: backtracking search algorithm (BSA) and biogeography-based optimization (BBO). Utilizing 16 landslide conditioning elements such as elevation (aspect), plan (curve), profile (curvature), geology, NDVI (land use), slope (degree), stream power ...

<p style='text-indent:20px;'>In this research, a parallel machine sequence-dependent group scheduling problem with the goal of minimizing total weighted earliness and tardiness is investigated. First, mathematical model developed for research which can be used solving small-sized instances. Since shown to NP-hard, focuses on proposing meta-heuristic algorithms finding near-optimal solutio...

OBJECTIVES Reasons for predonation deferral of young potential donors and prospects of recruiting and retaining young people (age 18-29) as voluntary blood donors were studied. STUDY DESIGN AND METHODS Three different sources of data were analysed: (i) the subsequent donation history of 2057 donors who started their donation career at the Blood Bank of Oslo (BBO) in 1999, age and gender of al...

We develop a wide-field simultaneous spatial and temporal focusing (SSTF) setup for two-photon excited fluorescence microscopy and its axial focusing point is scanned by second-order dispersion added by a femtosecond laser pulse shaper placed before the setup. We measure the axial resolution of second harmonic generation (SHG) at the edge of a BBO crystal.

We report measurement of efficient amplification of weak femtosecond supercontinuum seed pulses by use of a noncollinear optical parametric process in BBO crystal pumped with 150-fs pulses from a frequency-doubled regenerative-amplified Ti:sapphire laser at 390nm . The highest amplification factor, 10(8) , was achieved for 3x10(-16)J energy seed pulses at wavelength of 560nm.

To obtain high-quality Pareto optimal solutions and to enhance the searchability of biogeography-based optimization (BBO) algorithm, we present an improved BBO algorithm based on hybrid migration a dual-mode mutation strategy (HDBBO). We first adopted more scientific nonlinear hyperbolic tangent mobility model instead conventional linear which can solution closer global minimum function. develo...