Computer program calculates gamma ray source strengths of materials exposed to neutron fluxes

Computer program contains an input library of nuclear data for 44 elements and their isotopes to determine the induced radioactivity for gamma emitters. Minimum input requires the irradiation history of the element, a four-energy-group neutron flux, specification of an alloy composition by elements, and selection of the output

Dreaming : Serenade

https://digitalcommons.library.umaine.edu/mmb-vp/3085/thumbnail.jp

Making a Grand Contribution: Professional Development Resources for Leveraging Assessment Data to Advance Equity

Describes professional development opportunities collected by the Grand Challenges Equity Implementation Team to advance equity in institutional assessment. Julene L. Jones, Ciji A. Heiser and Glenn A. Phillips. Making a Grand Contribution: Professional Development Resources for Leveraging Assessment Data to Advance Equity Assessment Update Vol. 36 Iss. 1 (2024) p. 11 - 14 ISSN: 1536-072

Personality traits of effective communicators: a study of chairpersons and faculty at Rowan College of New Jersey

This study determines chairpersons\u27 personality traits and their effect on communications with faculty. The Mvers-Brigs Type Indicator was given to seven chairpersons (three female; four male) within Rowan College of New Jersey. The responses were tabulated by hand. The results were mailed to participants. The author requested faculty to choose chairpersons\u27 personality characteristics and rate the effectiveness of the two-way communication between them and their chairpersons. The data were analyzed using a statistical software package (SPSS). The study revealed that 13 faculty rated their chairpersons as very good two-way communicators; eight faculty rated their chairpersons as good two-way communicators; three faculty rated their chairpersons as fair or not good two-way communicators. Only 13 percent of the faculty chose the correct personality style of their chairperson. The most common primary or secondary function for both chairpersons and faculty is thinking/judging. There was no significance between chairpersons\u27 personality traits and the effectiveness of two-way communication

Dreaming

1. Out in the still summers evening Into my heart comes a feeling of love that\u27s true and undying; For you, sweetheart, I am sighing. Down by the stream where we wander\u27d Under the pale moonlight beaming, There\u27s where I linger and dream of you Darling Dreaming. CHORUS: Dreaming, Dreaming of you sweetheart I am dreaming, Dreaming of days when you loved me best Dreaming of hours that have gone to rest, Dreaming, Dreaming Love\u27s own sweet message I\u27m bringing, Years have not changed the old love still remains, Dreaming. 2. Years have gone by, still I love you Tho\u27 there\u27s another who won you out of my life you have drifted; Yet in my heart You still linger. Dreaming or waking I see you, I can forgive not forget you In life and death I\u27ll await your return while I\u27m Dreamin

Design of Modular, Shape-transitioning Inlets for a Conical Hypersonic Vehicle

For a hypersonic vehicle, propelled by scramjet engines, integration of the engines and airframe is highly desirable. Thus, the forward capture shape of the engine inlet should conform to the vehicle body shape. Furthermore, the use of modular engines places a constraint on the shape of the inlet sidewalls. Finally, one may desire a combustor cross- section shape that is different from that of the inlet. These shape constraints for the inlet can be accommodated by employing a streamline-tracing and lofting technique. This design technique was developed by Smart for inlets with a rectangular-to-elliptical shape transition. In this paper, we generalise that technique to produce inlets that conform to arbitrary shape requirements. As an example, we show the design of a body-integrated hypersonic inlet on a winged-cone vehicle, typical of what might be used in a three-stage orbital launch system. The special challenge of inlet design for this conical vehicle at an angle-of-attack is also discussed. That challenge is that the bow shock sits relatively close to the vehicle body

γδ T cells affect IL-4 production and B-cell tolerance

γδ T cells can influence specific antibody responses. Here, we report that mice deficient in individual γδ T-cell subsets have altered levels of serum antibodies, including all major subclasses, sometimes regardless of the presence of αβ T cells. One strain with a partial γδ deficiency that increases IgE antibodies also displayed increases in IL-4–producing T cells (both residual γδ T cells and αβ T cells) and in systemic IL-4 levels. Its B cells expressed IL-4–regulated inhibitory receptors (CD5, CD22, and CD32) at diminished levels, whereas IL-4–inducible IL-4 receptor α and MHCII were increased. They also showed signs of activation and spontaneously formed germinal centers. These mice displayed IgE-dependent features found in hyper-IgE syndrome and developed antichromatin, antinuclear, and anticytoplasmic autoantibodies. In contrast, mice deficient in all γδ T cells had nearly unchanged Ig levels and did not develop autoantibodies. Removing IL-4 abrogated the increases in IgE, antichromatin antibodies, and autoantibodies in the partially γδ-deficient mice. Our data suggest that γδ T cells, controlled by their own cross-talk, affect IL-4 production, B-cell activation, and B-cell tolerance

Common activation of canonical Wnt signaling in pancreatic adenocarcinoma.

Pancreatic ductal adenocarcinoma (PDA) is an extremely aggressive malignancy, which carries a dismal prognosis. Activating mutations of the Kras gene are common to the vast majority of human PDA. In addition, recent studies have demonstrated that embryonic signaling pathway such as Hedgehog and Notch are inappropriately upregulated in this disease. The role of another embryonic signaling pathway, namely the canonical Wnt cascade, is still controversial. Here, we use gene array analysis as a platform to demonstrate general activation of the canonical arm of the Wnt pathway in human PDA. Furthermore, we provide evidence for Wnt activation in mouse models of pancreatic cancer. Our results also indicate that Wnt signaling might be activated downstream of Hedgehog signaling, which is an early event in PDA evolution. Wnt inhibition blocked proliferation and induced apoptosis of cultured adenocarcinoma cells, thereby providing evidence to support the development of novel therapeutical strategies for Wnt inhibition in pancreatic adenocarcinoma

Subsurface barrier integrity verification using perfluorocarbon tracers

Subsurface barriers are an extremely promising remediation option to many waste management problems. Gas phase tracers include perfluorocarbon tracers (PFT`s) and chlorofluorocarbon tracers (CFC`s). Both have been applied for leak detection in subsurface systems. The focus of this report is to describe the barrier verification tests conducted using PFT`s and analysis of the data from the tests. PFT verification tests have been performed on a simulated waste pit at the Hanford Geotechnical facility and on an actual waste pit at Brookhaven National Laboratory (BNL). The objective of these tests were to demonstrate the proof-of-concept that PFT technology can be used to determine if small breaches form in the barrier and for estimating the effectiveness of the barrier in preventing migration of the gas tracer to the monitoring wells. The subsurface barrier systems created at Hanford and BNL are described. The experimental results and the analysis of the data follow. Based on the findings of this study, conclusions are offered and suggestions for future work are presented

Ancient DNA reveals the timing and persistence of organellar genetic bottlenecks over 3,000 years of sunflower domestication and improvement

Here, we report a comprehensive paleogenomic study of archaeological and ethnographic sunflower remains that provides significant new insights into the process of domestication of this important crop. DNA from both ancient and historic contexts yielded high proportions of endogenous DNA, and although archaeological DNA was found to be highly degraded, it still provided sufficient coverage to analyze genetic changes over time. Shotgun sequencing data from specimens from the Eden's Bluff archaeological site in Arkansas yielded organellar DNA sequence from specimens up to 3,100 years old. Their sequences match those of modern cultivated sunflowers and are consistent with an early domestication bottleneck in this species. Our findings also suggest that recent breeding of sunflowers has led to a loss of genetic diversity that was present only a century ago in Native American landraces. These breeding episodes also left a profound signature on the mitochondrial and plastid haplotypes in cultivars, as two types were intentionally introduced from other Helianthus species for crop improvement. These findings gained from ancient and historic sunflower specimens underscore how future in-depth gene-based analyses can advance our understanding of the pace and targets of selection during the domestication of sunflower and other crop species