Spacecraft ceramic protective shield

A low areal density protective shield apparatus, and method for making same, for protecting spacecraft structures from impact with hypervelocity objects, including a bumper member comprising a bumper ceramic layer, a bumper shock attenuator layer, and a bumper confining layer. The bumper ceramic layer can be SiC or B.sub.4 C; the bumper shock attenuator layer can be zirconia felt; and the bumper confining layer can be aluminum. A base armor member can be spaced from the bumper member and a ceramic fiber-based curtain can be positioned between the bumper and base armor members

A Randomized Trial Evaluating a Parent Based Intervention to Reduce College Drinking

This study evaluated the effectiveness of a parent based intervention (PBI) in reducing drinking among first year college students (N = 443). Students were assigned to one of three conditions: PBI, PBI plus booster brochures (PBI-B), and an assessment only control group (CNT). At a 4-month post-intervention follow-up, results indicated students in the PBI-B group reported significantly less drinking to intoxication and peak drinking relative to the PBI group and CNT group. No significant differences were found between the PBI group and CNT group. Results provide further support for PBIs to reduce college student drinking and suggest that a booster brochure increases the effectiveness of PBIs

MINMOD Millennium: A Computer Program to Calculate Glucose Effectiveness and Insulin Sensitivity From the Frequently Sampled Intravenous Glucose Tolerance Test

The Bergman Minimal Model enables estimation of two key indices of glucose/insulin dynamics: glucose effectiveness and insulin sensitivity. In this paper we describe MINMOD Millennium, the latest Windows-based version of minimal model software. Extensive beta testing of MINMOD Millennium has shown that it is user-friendly, fully automatic, fast, accurate, reproducible, repeatable, and highly concordant with past versions of MINMOD. It has a simple interface, a comprehensive help system, an input file editor, a file converter, an intelligent processing kernel, and a file exporter. It provides publication-quality charts of glucose and insulin and a table of all minimal model parameters and their error estimates. In contrast to earlier versions of MINMOD and some other minimal model programs, Millennium provides identified estimates of insulin sensitivity and glucose effectiveness for almost every subject

The Ursinus Weekly, October 25, 1948

Ranung and Klein to offer musicale; program to feature folk songs, arias • Fowler, two profs give party views in opening forum • Campus election slated for Wednesday; enthusiasm runs high among students • \u27Y\u27 committees plan numerous activities • Sororities to begin sophomore rushing • Week-end cheerful despite grid loss • Luncheons attended by many ex-coeds • Curtain Club plans show for November presentation • Officers of IRC to attend conference at Penn State • Frosh bear fund reaches $28 in drive to buy new costume • Frosh hold annual banquet with Gene Glick as guest • Chem society begins year; executive committee voted • Ruby will conduct raffle in new subscription drive • Bachelors number 338 as total vets enrollment reaches 423 • Freshman relates experiences abroad • How to make your room inhabitable • Introducing Steve Arvanitis • Gridders to tackle Staten Island team • JVs held scoreless in Hill soccer tilt • Sam Gary tosses four touchdown aerials as Swarthmore wins old timers\u27 battle 24-7 • Seeders calls team for hoop practice • Co-ed JVs extend undefeated record • Lafayette tramples varsity booters 9-0 • Soccer squad clips alumni booters 4-0 • Varsity tripped 2-0 by hockey alumnae • Hayseed fans shine at junior shindig • WSGA names three women to nominating committee • Cub & Key holds first meeting; dinner in Philadelphia plannedhttps://digitalcommons.ursinus.edu/weekly/1599/thumbnail.jp

The Ursinus Weekly, March 7, 1949

Bruins place second in mat tourney • Cheating committee sets up new rules to stop offenders • Bullets take first; Helfferich and Cox gain Ursinus wins • Lantern lists Howard S. Lee for program of varied ballads • Hallelujah!!! Gaff gets highest rating in poll of readers • Arnold D. Graeffe to address forum audience on Thursday • Business group nears disaster; meeting called • Juniors to pick Ruby officers on Wednesday • Sophs planning week-end with hop as feature event • Sororities extending bids as week of rushing begins • Should Ursinus subsidize its athletes? • Hardworking publicity staff keeps Ursinus in limelight • Doggie roast, talk on China highlight week\u27s Y activities • Benefactors donate volumes and money to growing library • Ursinus grapplers pin PMC opponents to loss sheet 35-3 • Matmen, hoopsters force intramurals to sidelines • Cindermen to face \u27Fords on April 23 in season\u27s opener • Drexel swamps local mermaids, 42-15; Jay Vee team matches opponents, 27-27 • Bearettes nose out Garnet team 36-33, trim Beaver 26-20 • Court season closes with pair of defeats • Cox, Helfferich outstanding in MA tourney • Garnet, PMC to vie for league honors in Friday play-off • Powell, Pleet, Peterson receive honors on \u2748 MA soccer team • MSGA topics cover cheating, placement at Tuesday session • Orchestra and television highlight junior class affair • Curtain Club selects spring playhttps://digitalcommons.ursinus.edu/weekly/1610/thumbnail.jp

The Ursinus Weekly, December 6, 1948

Who\u27s Who honors thirteen seniors • Seniors to present year\u27s first formal at local ballroom • Students picked to represent Ursinus in annual edition of campus leaders • Outstanding artists featured Thursday in annual Messiah • Sociology studies confirm results of CORE racial poll • Students of Ursinus place small value on peace of world • Four IRC members visit State College • Annex gets number one stooper rating • Performance of Uncle Harry outstanding • Ursinus students selected to appear in annual Who\u27s Who • Don Young tops bruins in all statistics; prize back selected Player of the year • Frosh grid squad mangles sophs 13-0 on two long runs • JVs extend streak; Penn defeated 3-0 • Last period tally gives Penn lassies victory over belles • U.C. football squad gains easy victory in battle on court • Grunt and groaners show much talent as practice begins • Court campaign to open Wednesday • Temple pathologist to discuss cancer • Omwake assists in preparation of University Business Administration manual • Dr. Armstrong completes book as part of church history serieshttps://digitalcommons.ursinus.edu/weekly/1603/thumbnail.jp

Failure properties and microstructure of healthy and aneurysmatic human thoracic aortas subjected to uniaxial extension with a focus on the media

Current clinical practice for aneurysmatic interventions is often based on the maximum diameter of the vessel and/or on the growth rate, although rupture can occur at any diameter and growth rate, leading to fatality. For 27 medial samples obtained from 12 non-aneurysmatic (control) and 9 aneurysmatic human descending thoracic aortas we examined: the mechanical responses up to rupture using uniaxial extension tests of circumferential and longitudinal specimens; the structure of these tissues using second-harmonic imaging and histology, in particular, the content proportions of collagen, elastic fibers and smooth muscle cells in the media. It was found that the mean failure stresses were higher in the circumferential directions (Control-C 1474 kPa; Aneurysmatic-C 1446 kPa), than in the longitudinal directions (Aneurysmatic-L 735kPa; Control-L 579 kPa). This trend was the opposite to that observed for the mean collagen fiber directions measured from the loading axis (Control-L > Aneurysmatic-L > Aneurysmatic-C > Control-C), thus suggesting that the trend in the failure stress can in part be attributed to the collagen architecture. The difference in the mean values of the out-of-plane dispersion in the radial/longitudinal plane between the control and aneurysmatic groups was significant. The difference in the mean values of the mean fiber angle from the circumferential direction was also significantly different between the two groups. Most specimens showed delamination zones near the ruptured region in addition to ruptured collagen and elastic fibers. This study provides a basis for further studies on the microstructure and the uniaxial failure properties of (aneurysmatic) arterial walls towards realistic modeling and prediction of tissue failure

The Ursinus Weekly, January 17, 1949

Lauterbach to address February student forum • Ron Landes selected assistant grid coach • Lorelei will retain turnabout custom, say student voters • Rosicrucian society honors thirty girls at Hobson Hall tea • Variety of careers chosen by eighteen semester graduates • Wednesday deadline made by publishers for Ruby material • President\u27s budget, Secretary of State top news of week • Men\u27s council ends work for semester in lengthy session • Which beauty will reign at May festivities? • Flood strikes Ursinus; run for your lives! • Campus cut-up waves bon voyage • Sportsmanship • Single tally downs bears at Delaware; final score, 49-48 • Belles rout Albright 44-27 in opening tilt of season • League lead fixed after Cadets\u27 loss to little Quakers • Bruin Quintet bows 70-48 to superb Garnet squad • Maxwell Club fete attended by Young • Wins prove scarce as cubs drop twohttps://digitalcommons.ursinus.edu/weekly/1606/thumbnail.jp

Brief motivational interventions for college student drinking may not be as powerful as we think: An individual participant-level data meta-analysis

Background For over two decades, brief motivational interventions (BMIs) have been implemented on college campuses to reduce heavy drinking and related negative consequences. Such interventions include in-person motivational interviews (MIs), often incorporating personalized feedback (PF), and stand-alone PF interventions delivered via mail, computer, or the Web. Both narrative and meta-analytic reviews using aggregate data from published studies suggest at least short-term efficacy of BMIs, although overall effect sizes have been small. Method The present study was an individual participant-level data (IPD) meta-analysis of 17 randomized clinical trials evaluating BMIs. Unlike typical meta-analysis based on summary data, IPD meta-analysis allows for an analysis that correctly accommodates the sampling, sample characteristics, and distributions of the pooled data. In particular, highly skewed distributions with many zeroes are typical for drinking outcomes, but have not been adequately accounted for in existing studies. Data are from Project INTEGRATE, one of the largest IPD meta-analysis projects to date in alcohol intervention research, representing 6,713 individuals each with two to five repeated measures up to 12 months post-baseline. Results We used Bayesian multilevel over-dispersed Poisson hurdle models to estimate intervention effects on drinks per week and peak drinking, and Gaussian models for alcohol problems. Estimates of overall intervention effects were very small and not statistically significant for any of the outcomes. We further conducted post hoc comparisons of three intervention types (Individual MI with PF, PF only, and Group MI) vs. control. There was a small, statistically significant reduction in alcohol problems among participants who received an individual MI with PF. Short-term and long-term results were similar. Conclusions The present study questions the efficacy and magnitude of effects of BMIs for college drinking prevention and intervention and suggests a need for the development of more effective intervention strategies

Synthesis, Characterization, and Crystal Structure of the (η5-C5Ph5)Cr(CO)3 Radical

The reaction between Cr(CO)6 and Na(C5Ph5 ) in refluxing diglyme yields [Na(diglyme)3/2][(C5Ph5)Cr(CO)3], 1. Metathesis of 1 with [Ph3P=N=PPh3 ]Cl in CH2Cl2 yields [Ph3P=N=PPh3][(C5Ph5)Cr(CO)3], 2. Oxidation of 1 by AgBF4 in cold THF under an argon atmosphere produces (C5Ph5)Cr(CO)3, 3. Complexes 2 and 3 form a redox pair connected by a quasireversible one-electron process, E0 = -0.69 V vs ferrocene in CH2Cl2, E0 = -0.50 V in CH3CN, ks = 0.12 cm/s. ESR spectra of (C5Ph5)Cr(CO)3 in toluene at 90 K gave a rhombic g-tensor with components 2.1366, 2.0224, and 1.9953, consistent with the expected low-spin d5 electronic configuration. The largest g-tensor component was significantly temperature dependent, suggesting an equilibrium between conformations with 2A´ and 2A˝ ground states. Crystal structures of [Ph3P=N=PPh3][(C5Ph5)Cr(CO)3] and (C5Ph5)Cr(CO)3 were obtained