Extending an Effective Classroom-Based Math Board Game Intervention to Preschoolers’ Homes

The preschool years are a critical time for math development. Unfortunately, children from low-income backgrounds often enter kindergarten with lower math skills than middle-income peers, perhaps due to less math exposure at home. Few home-based math interventions are available for preschool age children; those that do exist are costly and difficult to implement. Interventions conducted in children’s schools using linear numeric board games developed by researchers have been particularly successful with low-income preschool children. Researchers have suggested they may be adapted for home-use by using commercially available board games, such as Chutes and Ladders, and teaching parents how to play. The two studies described in this paper explored the effectiveness of using Chutes and Ladders with a specialized counting procedure with Head Start families. Implementation proved to be challenging and children did not improve as much as in previous classroom-based interventions

Orion Exploration Flight Test-1 Contingency Drogue Deploy Velocity Trigger

As a backup to the GPS-aided Kalman filter and the Barometric altimeter, an "adjusted" velocity trigger is used during entry to trigger the chain of events that leads to drogue chute deploy for the Orion Multi-Purpose Crew Vehicle (MPCV) Exploration Flight Test-1 (EFT-1). Even though this scenario is multiple failures deep, the Orion Guidance, Navigation, and Control (GN&C) software makes use of a clever technique that was taken from the Mars Science Laboratory (MSL) program, which recently successfully landing the Curiosity rover on Mars. MSL used this technique to jettison the heat shield at the proper time during descent. Originally, Orion use the un-adjusted navigated velocity, but the removal of the Star Tracker to save costs for EFT-1, increased attitude errors which increased inertial propagation errors to the point where the un-adjusted velocity caused altitude dispersions at drogue deploy to be too large. Thus, to reduce dispersions, the velocity vector is projected onto a "reference" vector that represents the nominal "truth" vector at the desired point in the trajectory. Because the navigation errors are largely perpendicular to the truth vector, this projection significantly reduces dispersions in the velocity magnitude. This paper will detail the evolution of this trigger method for the Orion project and cover the various methods tested to determine the reference "truth" vector; and at what point in the trajectory it should be computed

Study of the Transition of a Consortia Institution to a Branch Campus

This study used a qualitative, case study methodology. The purpose was to identify key factors in the transition of the University Center at Tulsa to Oklahoma State University-Tulsa. An inductive analysis approach to the data collected assisted with the explanation of the evolution of the consortia institution to a single university branch campus. Many studies explored the administrative for consortia and multi-campus systems (Bird, 2007; Burke, 1994; deGive, 1996; Dengerink, 2001). Branch campus faculty and the relationship between the branch campus and the main campus were explored by Nickerson and Schaefer (2001). Consortia arrangements were popular because funding for higher education was decreasing (Altbach, Berdahl, & Gumport, 1999) but consortia have begun to transition to other entities. The scholarship does not address the evolution of these entities to branch campuses or to a single university delivery site. The results of the study identified two organizational theories that were important to theSchool of Teaching and Curriculum Leadershi

Comparison of Anterior Compartment Pressures in Competitive Runners and Cyclists

Physiological Science

Study of Middle School Students' Understanding of Number Sense Related to Percent

Curriculum and Instructio

Effect of Simultaneous Arm Pumping and Walking on Heart Rate and Blood Pressure in Older Females

Health, Physical Education and Recreatio

"Drama within the limitations of art": A study of some plays by Maeterlinck, Yeats,Beckett, and Pinter

The purpose is to elucidate one of the most important types of play written in rejection of late nineteenth-century secular realism. The theory of the form was most forcefully expressed by T.S. Eliot and G.B. Shaw. Although in many ways antithetical, Shaw and Eliot, in terms often curiously similar and with a crucial model in common, demanded a drama which would reject the secular ethos of realism, its formal amorphousness, and its preoccupation with the portrayal of personalities. Quite independently, in looking for an exemplary play in the whole English tradition, each fixed on the medieval Everyman. In "Four Elizabethan Dramatists" Eliot puts the point with force in a phrase pellucid yet richly suggestive: "In one play, Everyman, and perhaps in that one play only, we have a drama within the limitations of art." Shaw used Everyman as the clearest example in English of the work of the artist-philosophers. In both Shaw's and Eliot's admiration for the medieval play lies a horror of chaos, and a demand for philosophical order. Some plays by Maeterlinck, Yeats, Beckett and Pinter are assessed according to their success or failure as 'drama within the limitations of art', drama that imposes order on actuality in order to elicit a sense of order in actuality Yeats's successful creation of a complex private mythology provided him with what the other three dramatists so cripplingly lacked - what Yeats called his "defense against the chaos of the world<p

Visualization of Science Supported by NADP Measurements

Ope

An Alternative Flight Software Trigger Paradigm: Applying Multivariate Logistic Regression to Sense Trigger Conditions Using Inaccurate or Scarce Information

In late 2014, NASA will fly the Orion capsule on a Delta IV-Heavy rocket for the Exploration Flight Test-1 (EFT-1) mission. For EFT-1, the Orion capsule will be flying with a new GPS receiver and new navigation software. Given the experimental nature of the flight, the flight software must be robust to the loss of GPS measurements. Once the high-speed entry is complete, the drogue parachutes must be deployed within the proper conditions to stabilize the vehicle prior to deploying the main parachutes. When GPS is available in nominal operations, the vehicle will deploy the drogue parachutes based on an altitude trigger. However, when GPS is unavailable, the navigated altitude errors become excessively large, driving the need for a backup barometric altimeter to improve altitude knowledge. In order to increase overall robustness, the vehicle also has an alternate method of triggering the parachute deployment sequence based on planet-relative velocity if both the GPS and the barometric altimeter fail. However, this backup trigger results in large altitude errors relative to the targeted altitude. Motivated by this challenge, this paper demonstrates how logistic regression may be employed to semi-automatically generate robust triggers based on statistical analysis. Logistic regression is used as a ground processor pre-flight to develop a statistical classifier. The classifier would then be implemented in flight software and executed in real-time. This technique offers improved performance even in the face of highly inaccurate measurements. Although the logistic regression-based trigger approach will not be implemented within EFT-1 flight software, the methodology can be carried forward for future missions and vehicles