Pan-STARRS1 Discovery of Two Ultraluminous Supernovae at z ≈ 0.9

We present the discovery of two ultraluminous supernovae (SNe) at z ≈ 0.9 with the Pan-STARRS1 Medium Deep Survey. These SNe, PS1-10ky and PS1-10awh, are among the most luminous SNe ever discovered, comparable to the unusual transients SN 2005ap and SCP 06F6. Like SN 2005ap and SCP 06F6, they show characteristic high luminosities (M_(bol) ≈ –22.5 mag), blue spectra with a few broad absorption lines, and no evidence for H or He. We have constructed a full multi-color light curve sensitive to the peak of the spectral energy distribution in the rest-frame ultraviolet, and we have obtained time series spectroscopy for these SNe. Given the similarities between the SNe, we combine their light curves to estimate a total radiated energy over the course of explosion of (0.9-1.4) × 10^(51) erg. We find photospheric velocities of 12,000-19,000 km s^(–1) with no evidence for deceleration measured across ~3 rest-frame weeks around light curve peak, consistent with the expansion of an optically thick massive shell of material. We show that, consistent with findings for other ultraluminous SNe in this class, radioactive decay is not sufficient to power PS1-10ky, and we discuss two plausible origins for these events: the initial spin-down of a newborn magnetar in a core-collapse SN, or SN shock breakout from the dense circumstellar wind surrounding a Wolf-Rayet star

Cognitive Behavioral Therapy for Child Posttraumatic Stress Disorder: Testing Direct and Reciprocal Effects on Maternal Depression

Children exposed to trauma experience many negative outcomes including posttraumatic stress disorder (PTSD). Fortunately, cognitive-behavioral therapy (CBT) is an effective treatment for PTSD. Theoretically it may be that not only do children do better in treatment when their parents are involved, but that there is also a reciprocal relationship such that as children improve their parents feel better as well (and vice a versa). Using data from a randomized trial (Scheeringa & Weems, 2014), this thesis used Hierarchical Linear Modeling (HLM) to test if change in child PTSD symptoms mediates change in parent depression symptoms, and vice a versa, across treatment sessions. Results indicated that maternal depression mediates child PTSD symptoms, and that the reciprocal relationship is present. However, this was only true when child PTSD symptoms were measured by parent report. The addition of this reciprocal relationship finding to the literature and future directions are discussed

Cognitive Behavioral Therapy for Child Posttraumatic Stress Disorder: Testing Direct and Reciprocal Effects on Maternal Depression

Children exposed to trauma experience many negative outcomes including posttraumatic stress disorder (PTSD). Fortunately, cognitive-behavioral therapy (CBT) is an effective treatment for PTSD. Theoretically it may be that not only do children do better in treatment when their parents are involved, but that there is also a reciprocal relationship such that as children improve their parents feel better as well (and vice a versa). Using data from a randomized trial (Scheeringa & Weems, 2014), this thesis used Hierarchical Linear Modeling (HLM) to test if change in child PTSD symptoms mediates change in parent depression symptoms, and vice a versa, across treatment sessions. Results indicated that maternal depression mediates child PTSD symptoms, and that the reciprocal relationship is present. However, this was only true when child PTSD symptoms were measured by parent report. The addition of this reciprocal relationship finding to the literature and future directions are discussed

Parent-Adolescent Cross-Informant Agreement: Findings from Two Clinical Samples

The current study examined parent-adolescent cross-informant agreement in two clinical samples (Total N = 204 dyads) based on adolescents’ ratings on the Youth Self-Report and parents’ ratings on the Child Behavior Checklist. Using the five different methods for examining cross-informant agreement used by Rescorla et al. (2013) in large international population samples, we sought to examine whether parents report more problems about their adolescents than the adolescents report about themselves, the degree of correlation between parent and adolescent scores on problem scales, how much parents overall and their children overall tend to agree on item ratings, how well parent-adolescent dyads agree on which specific items are rated low, medium, or high, and how well parents and their adolescents agree about the adolescent having a high number of problems. We found that adolescents and their parents did not tend to differ in levels of problem reporting and that agreement between the dyads tended to be moderate. We also found high levels of overall agreement around the most and least common items, although dyads did not tend to agree about the specific items endorsed by the parent and adolescent. Finally, we found parents tended to agree when their children expressed elevated range scores, and adolescents tended to agree when their parents indicated non-elevated range scores. However, when parents endorsed elevated range scores, their adolescents were less likely to agree. Parent agreement varied between the samples around the adolescent’s assessment of a non-elevated-range score. Relevance to clinical practice and understanding of parent-child discrepancies in clinical populations are discussed

Farm policy review

Farm Policy Review for the state of Mississippi, a state report compiled from input from farmers, and giving input on the various federal and state agencies that work with agriculture. Sent from C. L. Neill, chairman of the State Agricultural Mobilization Committee, to members of the State Agricultural Mobilization Committee for discussion at a October 11, 1951 meeting.https://scholarsjunction.msstate.edu/mss-stevens-papers/1072/thumbnail.jp

Orbital maneuvering end effectors

This invention relates to an end effector device for grasping and maneuvering objects such as berthing handles of a space telescope. The device includes a V-shaped capture window defined as inclined surfaces in parallel face plates which converge toward a retainer recess in which the handle is retained. A pivotal finger (30) meshes with a pair of pivoted fingers which rotate in counterrotation. The fingers rotate to pull a handle within the capture window into recess where latches lock handle in the recess. To align the capture window, plates may be cocked plus or minus five degrees on base. Drive means is included in the form of a motor coupled with a harmonic drive speed reducer, which provides for slow movement of the fingers at a high torque so that large articles may be handled. Novelty of the invention is believed to reside in the combined intermeshing finger structure, drive means and the harmonic drive speed reducer, which features provide the required maneuverability and strength