A Definition of STS Accommodations for Attached Payloads

An input to a study conducted to define a set of carrier avionics for supporting large structures experiments attached to the Space Shuttle Orbiter is reported. The "baseline" Orbier interface used in developing the avionics concept for the Space Technology Experiments Platform, STEP, which Langley Research Center has proposed for supporting experiments of this sort is defined. Primarily, flight operations capabilities and considerations and the avionics systems capabilities that are available to a payload as a "mixed cargo" user of the Space Transportation System are addressed. Ground operations for payload integration at Kennedy Space Center, and ground operations for payload support during the mission are also discussed

\u27Where history meets the future\u27 : a historiographic exploration of Mississippi : the view from Tougaloo.

“Where History Meets the Future”: A Historiographic Exploration of Mississippi: The View from Tougaloo explores the historical narratives of Historically Black Colleges and Universities, with a special emphasis on Tougaloo College in Tougaloo, Mississippi. In particular, this dissertation examines the ways in which Tougaloo’s official history omits the voices of its student populations. It offers, then, a revisionist reading of the school’s history, constructing a narrative from the perspective of students. Based on hours of archival research and examination of the school’s student newspaper, this dissertation constructs a method that incorporates student voices into the historical narrative. The collection of contemporary student narratives, I argue, offers a model for future presentations of Tougaloo’s historical narrative and those of HBCUs more generally. That considered, this dissertation uses Tougaloo’s motto, “Where History Meets the Future” as a conceptual frame geared toward: 1. Exploring the place of institutional histories in the ongoing understanding of meaning when related specifically to HBCUs; 2. Accounting for the material history surrounding existing institutional narratives, specifically those at Tougaloo College via Mississippi: The View from Tougaloo; 3. Supplementing these sponsored narratives with student voices via student newspapers; and 4. Forwarding this understanding of a more inclusive institutional narrative by considering active institutional and pedagogical applications for the project. Together, these foci revisit the past in order to imagine futures that might introduce more critical conversations around HBCUs broadly and Tougaloo specifically

Baryogenesis, Dark Matter and the Pentagon

We present a new mechanism for baryogenesis, which links the baryon asymmetry of the universe to the dark matter density. The mechanism arises naturally in the Pentagon model of TeV scale physics. In that context, it forces a re-evaluation of some of the assumptions of the model, and we detail the changes that are required in order to fit observations.Comment: JHEP3 LaTeX, 15 pages. New version corrects errors in the electroweak baryon violating and matter radiation temperatures, which were pointed out by the referee. Substantial quantitative but no qualitative change to our conclusion

Long Fight for Freedom

The Sixteenth Jacoby-Lunin Humanitarian Lecture underwritten by the Frank Jacoby Foundation in collaboration with the Carl and Dorothy Bennett Center for Judaic Studies and Open VISIONS Forum… A conversation with Damien Echols, one of the \u27West Memphis Three\u27 wrongfully convicted of killing three small boys. Echols, his wife Lorri, and attorney Stephen Braga \u2778 discuss the twisted road to justice.https://digitalcommons.fairfield.edu/bennettcenter-posters/1304/thumbnail.jp

Investigation of the effect of thermal insulation materials on packaging performance

This investigation evaluates thermal insulation performance of a typical shipping container with different insulation materials. A mathematical model developed from our previous work was used to analyse the effect of packaging characteristics on insulative performance. A number of materials were employed as a liner to insulate a typical cardboard box and the effect of these materials on package insulative performance was evaluated through experimental tests and the transistent thermal model. The results showed that application of aluminium foil to the internal liner surface of polyethylene gave 46% increase in the package insulative performance compared to the original polyethylene insulated packages. An improvement of 79% and 106% in insulative performance per unit liner thickness was obtained from packages insulated with polyisocyanurate board and aerogel blanket compared to the polystyrene insulated package.The results also indicated that temperature surrounding the package played a significant role in the maximum insulation time. Furthermore, an excellent agreement was obtained between the mathematical model and the experimental results across all packaging aspects studied in this work

Creative Science Through Inquiry: Improving Teacher Self-Efficacy and Outcome Expectancy Through Adaptable, Mystery-Based Professional Development

Teacher self-efficacy is an important contributor to student outcomes, school climate and teacher retention. Outcome expectancy, a construct studied more commonly in health- and behaviour-related fields, may also positively impact school-related outcomes. Research shows that professional development can increase teacher confidence, but few studies have considered this connection for science-focused professional development, specifically. Our study assesses the impact of a science-focused, mystery-based professional development workshop for upper-elementary to high-school teachers. The hands-on, collaborative nature of this workshop allowed for generalisability to classrooms of various ability levels. Using the Science Teaching Efficacy Belief Instrument-A (STEBI-A) as a measure of science-teaching self-efficacy and outcome expectancy, we found that participants’ self-reported self-efficacy and outcome expectancy significantly increased (p < .001 for each) over the course of the two-week workshop. This outcome is especially relevant to schools and districts interested in improving student outcomes, school climate and teacher retention rates

Effectively Communicating Ethics Using Procedural and Distributive Justice: An Exploratory Study

Organizational justice influences employees’ citizenship behaviors and performance. Work environments characterized by unfair or unjust treatment are associated with low job commitment, dissatisfaction, demotivation, nonperformance, and high turnover. There was a need to explore the perception of variable justice in healthcare organizations grappling with a perennial shortage of skilled health professionals and high levels of turnover. In addition, reports of injustices in nonprofits in the health care sector made it challenging for the organizations to attract and retain volunteers. This qualitative exploratory study investigated how employees of the Mercy Clinic perceived fairness and how variable justice exists as part of the institution’s organizational behavior. The study was conducted among a sample of six employees from the clinic. Secondary data were collected from peer-reviewed articles, whereas primary data were collected from the participants using an open-ended interview prompt. The data were analyzed through content analysis to identify emerging themes. The findings showed that the participants associated the clinic with a justice and fairness and effective leadership. However, incidences of preferential treatment were reported especially in relation to hiring choices. As per the findings, the clinic’s leaders should hire competent workers who can perform their roles as expected and punish social loafers. Leaders of non-profit organizations should embrace fair decision making procedures to promote justice and inspire employees to continue providing services to the target underserved communities; thereby, promoting positive social change

Feasibility of utilizing the 200-inch Hale telescope as a deep-space optical receiver

Capturing the very faint optical communications signals expected from the Mars Laser Communication Demonstration (MLCD) experiment to fly aboard the Mars Telecommunications Orbiter (MTO) in 2009 requires a sensitive receiver placed at the focus of a large collecting aperture. For the purpose of demonstrating the potential of deep-space optical communication, it makes sense to employ a large astronomical telescope as a temporary receiver. Because of its large collecting aperture, its reputation as a well-run instrument, and its relative convenience, the 200-inch Hale Telescope on Palomar Mountain is being considered as a demonstration optical 'antenna' for the experiment. However, use of the telescope in this manner presents unique challenges to be overcome, the greatest of which is pointing the telescope and maintaining the communication link to within a few degrees of the Sun. This paper presents our candidate approaches for adapting the Hale telescope to meet the demonstration requirements, modifications to the facilities and infrastructure, the derivation of requirements for baffles and filters to meet the near-Sun pointing objectives, and initial data on the potential of candidate modifications to meet the requirements