The objective of this study was to develop surface electrical resistivity methods for estimating hydraulic conductivities in glacial outwash materials. Aquifer electrical resistivities were determined from the results of Schlumberger electrical soundings at six sites in southern Rhode Island where pumping tests had previously been made. Hydraulic conductivities and transmissivities determined from pumping tests were then correlated with resistivities obtained from electrical soundings. Results indicate that electrical resistivities determined from soundings can be used to predict aquifer hydraulic conductivities; an empirical relation between aquifer electrical resistivity and aquifer hydraulic conductivity was developed. A semiempirical relation between aquifer formation factor and hydraulic conductivity was also developed.
The current study examined the validity of the Nightmare Proneness Scale (NPS; Kelly, 2018) as measuring a personality disposition that predisposes individuals to experience frequent nightmares. The NPS and measures to estimate its convergent and discriminant validity were administered to a sample of 140 university students. The convergent validity of the scale was supported through significant correlations with nightmare frequency, nightmare distress, nightmare effects, general psychological distress, neuroticism, and trauma symptoms. Discriminant validity was demonstrated through nonsignificant correlations with feminine gender role, habitual sleep length, and social desirability. Regression results indicated that the NPS significantly predicted incremental variance in nightmares above general distress, neuroticism, and trauma symptoms combined as well as above nightmare distress and nightmare effects. The results and suggestions for additional research on the NPS and nightmare proneness were suggested.
Two bedrock valleys, filled with glacial outwash material, were investigated with Schlumberger resistivity soundings. Aquifer electrical resistivities were determined for 16 vertical electrical soundings at seven sites in southern Rhode Island where pumping tests had been run previously. Resistivities for the different aquifer materials were derived with boring log control. The auxiliary point methods were used to reduce the aquifer layering to a single representative resistivity value. Relationships between the representative aquifer resistivity and aquifer permeability and transmissivity were derived.
This article presents three studies aimed at the development and analysis of a proposed measure of nightmare proneness, the tendency to experience nightmares frequently. In Study 1 a sample of 205 university students was utilized to create the Nightmare Proneness Scale (NPS), consisting of personality and symptomatology items that significantly differentiated between individuals reporting frequent nightmares and controls. Study 2 cross-validated the ability of the NPS to discriminate between frequent nightmare reporters and controls among a sample of 275 students. Study 2 also found that the NPS accounted for unique variance in nightmare frequency above other measures of distress. The NPS possessed adequate internal consistency across all studies. Study 3 demonstrated satisfactory test-retest reliability of the NPS. The results and suggestions for future research were discussed.
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