Construct Validity of the Teate Depression Inventory and the State-Trait Inventory for Cognitive and Somatic Anxiety

The current study replicated previous research by examining convergent and discriminant validity of the Teate Depression Inventory (TDI), the General Behavior Inventory (GBI), and the State-Trait Inventory of Cognitive and Somatic Anxiety (STICSA). Results supported convergent validity between the TDI Total score and the GBI Depression subscale and discriminant validity was supported by the correlations between the TDI Total and GBI Hypomania-Biphasic subscale and the STICSA State- and Trait-Somatic subscales. Interestingly, results supported convergent validity between the TDI Total score and the STICSA State- and Trait-Cognitive subscale. These results are discussed

Off-design correlation for losses due to part-span dampers on transonic rotors

Experimental data from 10 transonic fan rotors were used to correlate losses created by part-span dampers located near the midchord position on the rotor blades. The design tip speed of these rotors varied from 419 to 425 m/sec, and the design pressure ratio varied from 1.6 to 2.0. Additional loss caused by the dampers for operating conditions between 50 and 100 percent of design speed were correlated with relevant aerodynamic and geometric parameters. The resulting correlation predicts the variation of total-pressure-loss coefficient in the damper region to a good approximation

Reduction of Thiocyanate Complexes of Fe(III) in the Presence of Activated Carbon

Fe (III) complexed with SCN- was found to be reduced to Fe(II) in the presence of activated carbon. The rate of disappearance of the complex was determined spectro photometrically and was found to be first order with respect to Fe(I1I). The enthalpy and entropy of activation are 100 ± 10 kJ/mole and 14.1 ± 0.8 J/mole-K respectively. Some Fe was found to be adsorbed on the catalyst where the actual reduction was suggested to take place. The accompanying oxidation reaction has been suggested to be mainly that of the thiocyanate ions adsorbed at the positive centres on the catalyst

Changes in Surface Potential of Activated Carbon Due to Adsorption of Ions

The construction of a carbon electrode and the measurement of the changes in the potential that developed on its surface as a result of adsorption of ions are discussed as a function of the cation adsorption and ionization of the functional groups on the surface of carbon

High-energy Modification Hydrates of Copper(II) Sulphate: heats of solution and infrared spectrum

High-energy modification of lower hydrates of copper(II) sulphate have been prepared and their heats of solution measured. The values obtained are higher than previously found for the salt. A new mechanism of dehydration has been proposed and supported by ir study of deuterated sample

Potential Measurements on Rubber Surfaces in Electrolyte Solutions

Films of natural and modified rubber were prepared and used as electrode membranes. The potential developed varied with the concentration of ions in solution and is discussed in terms of adsorption of the ions onto the membrane

Light trapping within the grooves of 1D diffraction gratings under monochromatic and sunlight illumination

The Rayleigh-Modal method is used to calculate the electromagnetic field within the grooves of a perfectly conducting, rectangular-shaped 1D diffraction grating. An \emph{enhancement coefficient} ($\eta$) is introduced in order to quantify such an energy concentration. Accordingly, $\eta >$1 means that the amount of electromagnetic energy present within the grooves is larger than that one will have, over the same volume, if the diffraction grating is replaced by a perfectly reflecting mirror. The results in this paper show that $\eta$ can be as large as several decades at certain, often narrow, ranges of wavelengths. However, it reduces to approximately 20% under sunlight illumination. In this latter case, such values are achieved when the \textit{optical spacing} between the grooves $dn$ is greater than 500 nm, where $d$ is the groove spacing and $n$ is the refractive index of the substance within the grooves. For $dn$ smaller than 500 nm the enhancement coefficient turns negligibly small.Comment: This paper contains 11 pages and 4 figures, and will be published elsewher