Structural characterization by scanning tunneling microscopy and alkali low-energy ion scattering spectroscopy of Pt~100! surfaces covered by less than 0.5-ML Ge is reported. Despite bulk solubility of Ge in Pt, it was found that Ge remains on top of the Pt~100! surface as adatoms even after annealing to 1200 K. Furthermore, Pt adatoms produced by lifting of the Pt~100!-hex reconstruction in th...

The utilization of polarized targets in scattering experiments has become a common practice in many major accelerator laboratories. Noble gases are especially suitable for such applications, since they can be easily hyper-polarized using spin exchange or metastable pumping techniques. Polarized helium-3 is a very popular target because it often serves as an effective polarized neutron due to it...

Conventional Polaroid time-of-flight (TOF) sonars provide object range measurements, but their wide beam widths limit the object bearing accuracy. We describe a first-order model that predicts the TOF readings from an object at given range, bearing, and reflecting strength produced by the Polaroid 6500 series sonar ranging module connected to a 600 series electrostatic transducer. The model pro...

Poly-trans-[(2-carboxyethyl) germasesquioxane] (Ge-132) is the most common organic germanium compound. The ingestion of Ge-132 promotes bile secretion. We assessed the rat caecal characteristics after the administration of Ge-132 and raffinose, a prebiotic oligosaccharide, because both Ge-132 and some prebiotics can change the fecal color to yellow. We also compared the changes in the caecal fl...

BACKGROUND/AIMS To evaluate associations between delayed gastric emptying (GE) assessed by the octanoic acid breath test and upper gastrointestinal (GI) symptoms. METHODS A historical, prospective study included 111 consecutive symptomatic adults referred for a GE breath test because of upper abdominal symptoms suggestive of delayed GE. Exclusion criteria included underlying organic disease a...

glycidol undergoing 100 % transformation into 3-MCPD (reference value) (NaCl) [TF=0.67] GE stearate (NaCl) [TF=0.85] GE linolenate (NaCl) [TF=0.67] GE oleate (NaCl) [TF=0.71] glycidol undergoing 100 % transformation into 3-MBPD (reference value) (NaBr) [TF=0.48] GE stearate (NaBr) [TF=0.51] GE linolenate (NaBr) [TF=0.31] Linear (GE linolenate (NaBr) [TF=0.31]) Challenges in Analysing Glycidyl F...

Germanium (Ge) is an optically active material with the advantages of Si-CMOS compatibility and monolithic integration. It has great potential to be used as the light emitter for Si photonics. Tensile strain and n-type doping are two key properties in Ge to achieve optical gain. This thesis mainly focuses on: (1) physical understandings of the threshold behavior of Ge-on-Si bulk laser and the t...

Previous studies in Jeddah, western Saudi Arabia, showed rotavirus (RV) prevalence around 40% in pediatric inpatients with gastroenteritis (GE) with a maximum level during cooler months. Currently, there are no data on impact of rotavirus vaccine (RVV) on RV-GE in Saudi Arabia. Therefore, this study was conducted to assess impact of RVV on incidence and severity of RV-GE in hospitalized pediatr...

Abstract The thermal resistance of semiconductor thin films is predicted using lattice dynamics (LD) calculations and molecular dynamics (MD) simulations. We consider Si and Ge films with thicknesses, LF , between 0.2 nm and 30 nm that are confined between larger extents of the other species (i.e., Ge/Si/Ge and Si/Ge/Si structures). The LD predictions are made in the classical limit for compari...