The purpose of this study was to compare the effect of casting temperature and atmosphere on the castability of three Ni-Cr alloys against direct flame casting method. Vera Bond (VB), Vera Bond 2 (VB2) and Wiron 99 (W99) were cast at three temperatures: VB and VB2 (1310 °C, 1340 °C and 1370 °C); W99 (1400 °C, 1430 °C and 1460 °C) in atmosphere, vacuum and direct flame. Each alloy was cast in se...

A one-photon ionic resonance is measured in the strong-field regime in acetophenone by recording the mass spectra as a function of excitation wavelength from 800 to 1500 nm. The ratio of the benzoyl to parent ion signals in the mass spectrum varies significantly with excitation wavelength, where the highest ratio observed upon excitation at 1370 nm (0.90 eV) indicates the presence of a one-phot...

Objectives The objectives were to determine whether employment-related factors had influence on physical and mental health outcomes among uninsured expatriates working in Saudi Arabia and to identify whether these factors act as facilitators or barriers to health. Methods Cross-sectional face-to-face interviewsusing previously published methodswere conducted among a multistage stratified clus...

BACKGROUND AND AIMS Sleep apnea syndrome (SAS) is a common disorder with growing awareness. We sought to evaluate if the presence of obesity in patients with SAS is associated with a high risk for development of coronary-vascular comorbidities. METHODS We performed a retrospective study that included 1370 patients (30.3% female and 69.7% male) diagnosed with SAS from May 2005 to May 2012. The...

Diffuse far-ultraviolet (FUV: 1370–1670 Å) flux from the Taurus molecular cloud region has been observed with the SPEAR/FIMS imaging spectrograph. An FUV continuum map of the Taurus region, similar to the visual extinction maps, shows a distinct cloud core and halo region. The dense cloud core, where the visual extinction is Av > 1.5, obscures the background diffuse FUV radiation, while a scatt...