The High Time Resolution Spectral Evolution of Gamma-Ray Bursts

Previous studies of the evolution of gamma-ray burst spectra have generally relied on fitting sequences of spectra. These studies usually were confined to bright bursts and often lacked sufficient temporal resolution. We have developed techniques which sacrifice spectral resolution for temporal resolution. First, the crosscorrelations between intensity lightcurves in different energy bands allow for the classification of the spectral evolution of a large burst sample. Second, the energy correlation of pairs of counts places limits on short-duration, narrowband emission.Comment: 5 pages, 2 figures, AIPPROC LaTeX, to appear in "Gamma-Ray Bursts, 4th Huntsville Symposium," eds. C. Meegan, R. Preece and T. Koshu

Women, War and Wages: The Effect of Female Labor Supply on the Wage Structure at Mid-Century

This paper investigates the effects of female labor supply on the wage structure. To identify variation in female labor supply, we exploit the military mobilization for World War II, which drew many women into the workforce as males exited civilian employment. The extent of mobilization was not uniform across states, however, with the fraction of eligible males serving ranging from 41 to 54 percent. We find that in states with greater mobilization of men, women worked substantially more after the War and in 1950, though not in 1940. We interpret these differentials as labor supply shifts induced by the War. We find that increases in female labor supply lower female wages, lower male wages, and increase the college and premium and male wage inequality generally. Our findings indicate that at mid-century, women were closer substitutes to high school graduate and relatively low-skill males, but not to those with the lowest skills.

Synthesis and Room Temperature NMR Analysis of Dimethylpiperazines

A survey of the literature has been made on the syntheses of 2,5- and 2,6-dimethylpiperazines. Several new N-substituted dimethylpiperazines were subsequently prepared. These are: cis-2,6-dimethyl-4-mesyl-piperazine, cis-2,5-dimethyl-l,4-dimesylpiperazine, and trans-2,5-dimethyl-l,4-dimesylpiperazine (Jl). Attempted syntheses of trans-2,6-dimethylpiperazine (!±,) are also discussed. Room temperature nmr analysis of these and other previously known piperazine isomers supports the hypothesis that the more energetically equivalent equilibrating conformers are the more compact the AB portion of the ABX pattern of the piperazine ring protons. This technique provides a convenient method for suggesting the configuration and conformation at room temperature of the seventeen isomers and derivatives that were studied. Piperazine ring proton assignments are based on coupling constants and chemical shifts. Steric factors influencing room temperature nmr analysis are also discussed

Analyzing and Improving Stochastic Network Security: A Multicriteria Prescriptive Risk Analysis Model

This research optimized two measures of network security by hardening components and improving their reliability. A common measure of effectiveness (MOE) for networks is statistical reliability, which ignores the effects of hostile actions. A new MOE which includes hostile actions was developed. Both measures require component reliability functions, derived using fault trees. Fuzzy Logic and Monte Carlo simulation were used to quantify uncertainty. Results from the model are compared to traditional Risk Assessment results

Supervisee Experiences of Corrective Feedback in Clinical Supervision: A Consensual Qualitative Research Study

Clinical supervision plays an integral role in counselor development, assisting supervisees to transition from educational coursework to clinical practice. Feedback, including that which is corrective, allows supervisors to transmit knowledge to supervisees and communicate evaluations of supervisee performance. Despite the central role of feedback in clinical supervision, surprisingly little empirical attention has focused on supervisee experiences of corrective feedback in clinical supervision. This study sought to provide a deeper understanding of supervisee experiences of corrective feedback in clinical supervision. Twelve participants were interviewed regarding their experience of corrective feedback in clinical supervision during predoctoral psychology internship. Participants expected to receive corrective feedback, and they held largely positive expectations/beliefs about corrective feedback. Despite positive expectations/beliefs about corrective feedback, participants discussed corrective feedback events that went poorly and resulted in negative consequences for themselves, their clinical work, and/or the supervision relationship. Additionally, participants - including those who discussed corrective feedback events that went poorly - made changes to their clinical work, one of the goals of corrective feedback. Limitations and implications for training, practice, and research are addressed