A Concept Model for Comparative Analysis Applied to the U.S. Airline Industry

The objective of this research is to analyze the trends in quality and performance of US airlines over the past ten years and determine what economic factors influence the level service. By identifying variables that directly affect the level of performance using data from Airline Quality Rating (AQR), service benchmarks for the airline industry can be established. Industry standard is set by AQR providing consumers and industry watchers objective performance-based data to compare performance quality among different US airlines. The AQR weighted average formula highlights criteria including baggage handling, customer complaints, denied boarding and on-time arrivals. Analyzing the data over the past ten years (2004-2014), this research will utilize the application of a comparable trend analysis methodology resulting in both industry wide and airline specific benchmarks. Data used in this research are readily available from the Department of Transportation and are considered important to the consumers regarding airline quality. Through the collected data and analysis, airlines, government entities and the traveling public will be able to make better decisions, implement policies and develop best practices

Analysis of Spirit of Charity Innovation District: Community Engagement, Development & Planning

The purpose of this project is to give an overview of history, background, planning process of the Spirit of Charity Innovation District and the upcoming development of the former Charity Hospital Building. Purpose of content analysis is to evaluate all forms of documents and articles available to see what major themes are discussed and carried out to get a sense of what qualities are the most important in the SCID

Instrumental swallowing assessment in adults in residential aged care homes : Practice patterns and opportunities

Objective To describe practice patterns in the use of instrumental swallowing assessment (ISA) for older adults in residential aged care homes (RACHs). Methods A retrospective audit of medical records of residents living in RACHs in Melbourne, Australia to extract data on speech-language pathologist (SLP) involvement, indications for ISA and ISA practice patterns. Results Medical files of 323 residents across four Melbourne facilities were reviewed. 36% (n = 115) of residents were referred to SLP for swallowing assessment. Referral to SLP was related to length of stay (U = 7393.00, p < 0.001), dementia status (χ2[1] = 7.06, p = 0.008), texture modification (χ2[1] = 93.34, p < 0.001) and an existing dysphagia diagnosis (χ2[1] = 112.89, p < 0.001). There were no referrals for ISA and no instances of ISA being used. Among 115 residents who were referred to SLP for swallowing assessment, there were 33 instances where ISA might be clinically relevant according to ISA indicators. Conclusions Instrumental swallowing assessment is not being used for the management of swallowing in RACHs in Australia despite a clinical need for ISA and a potential role for ISA to improve swallowing care quality. Lack of timely ISA may fail to meet the complex health-care needs of older adults living with dysphagia in RACHs, increasing their vulnerability to complications of dysphagia and its management

Qualitative Survey Assessment of Bike Share Programs on College Campuses

Background: Many college campuses have implemented bike share programs. These programs may be important to reduce vehicle traffic and increase physical activity. Purpose: The purpose of this study was to identify issues and possible solutions for a successful campus bike share program. Methods: Study design: Qualitative. An online survey link was sent to 111 campus bike share coordinators in the Spring 2014. Twenty-five (22.5%) completed the survey. Answers to multiple choice questions were summarized using descriptive statistics. Answers to open-ended questions were reviewed and a list of themes was developed. Results: The majority of respondents represented large universities (56%) in urban areas (76%) with high vehicle traffic (72%). Although 84% considered their campus safe for biking, only 40% reported designated bike lanes. Most programs allowed people to sign out a bike for 24 hours or less (56%). The main problems were damage to bikes and on-time returns. Recommendations included designated mechanics for quick repairs, high quality bikes, user accountability, and user and staff training. Conclusion: Major issues and solutions were identified for campus bike share programs. Additional research needs to examine how these can be used to create successful bike share programs and how these programs might increase physical activity

An Update on the Lithium-Ion Cell Low-Earth-Orbit Verification Test Program

A Lithium-Ion Cell Low-Earth-Orbit Verification Test Program is being conducted by NASA Glenn Research Center to assess the performance of lithium-ion (Li-ion) cells over a wide range of low-Earth-orbit (LEO) conditions. The data generated will be used to build an empirical model for Li-ion batteries. The goal of the modeling will be to develop a tool to predict the performance and cycle life of Li-ion batteries operating at a specified set of mission conditions. Using this tool, mission planners will be able to design operation points of the battery system while factoring in mission requirements and the expected life and performance of the batteries. Test conditions for the program were selected via a statistical design of experiments to span a range of feasible operational conditions for LEO aerospace applications. The variables under evaluation are temperature, depth-of-discharge (DOD), and end-of-charge voltage (EOCV). The baseline matrix was formed by generating combinations from a set of three values for each variable. Temperature values are 10 C, 20 C and 30 C. Depth-of-discharge values are 20%, 30% and 40%. EOCV values are 3.85 V, 3.95 V, and 4.05 V. Test conditions for individual cells may vary slightly from the baseline test matrix depending upon the cell manufacturer s recommended operating conditions. Cells from each vendor are being evaluated at each of ten sets of test conditions. Cells from four cell manufacturers are undergoing life cycle tests. Life cycling on the first sets of cells began in September 2004. These cells consist of Saft 40 ampere-hour (Ah) cells and Lith ion 30 Ah cells. These cells have achieved over 10,000 cycles each, equivalent to about 20 months in LEO. In the past year, the test program has expanded to include the evaluation of Mine Safety Appliances (MSA) 50 Ah cells and ABSL battery modules. The MSA cells will begin life cycling in October 2006. The ABSL battery modules consist of commercial Sony hard carbon 18650 lithium-ion cells configured in series and parallel combinations to create nominal 14.4 volt, 3 Ah packs (4s-2p). These modules have accumulated approximately 3000 cycles. Results on the performance of the cells and modules will be presented in this paper. The life prediction and performance model for Li-ion cells in LEO will be built by analyzing the data statistically and performing regression analysis. Cells are being cycled to failure so that differences in performance trends that occur at different stages in the life of the cell can be observed and accurately modeled. Cell testing is being performed at the Naval Surface Warfare Center in Crane, IN

A Longitudinal Analysis on the Cyclical Pattern of the U.S. Airline Industry

The Airline Quality Rating (AQR) is the nation’s most comprehensive study of airline performance and quality for over two decades. AQR provides consumers and industry watchers a means to compare performance quality among different US airlines using objective performance-based data. This research looks to analyze the cyclical patterns present in AQR in order to identify trends and factors contributing to the changes in these results each year. This research utilizes the application of a longitudinal analysis methodology which will provide the correlation between factors identified and the indicators affected

Superfluid Friction and Late-time Thermal Evolution of Neutron Stars

The recent temperature measurements of the two older isolated neutron stars PSR 1929+10 and PSR 0950+08 (ages of $3\times 10^6$ and $2\times 10^7$ yr, respectively) indicate that these objects are heated. A promising candidate heat source is friction between the neutron star crust and the superfluid it is thought to contain. We study the effects of superfluid friction on the long-term thermal and rotational evolution of a neutron star. Differential rotation velocities between the superfluid and the crust (averaged over the inner crust moment of inertia) of $\bar\omega\sim 0.6$ rad s$^{-1}$ for PSR 1929+10 and $\sim 0.02$ rad s$^{-1}$ for PSR 0950+08 would account for their observed temperatures. These differential velocities could be sustained by pinning of superfluid vortices to the inner crust lattice with strengths of $\sim$ 1 MeV per nucleus. Pinned vortices can creep outward through thermal fluctuations or quantum tunneling. For thermally-activated creep, the coupling between the superfluid and crust is highly sensitive to temperature. If pinning maintains large differential rotation ($\sim 10$ rad s$^{-1}$), a feedback instability could occur in stars younger than $\sim 10^5$ yr causing oscillations of the temperature and spin-down rate over a period of $\sim 0.3 t_{\rm age}$. For stars older than $\sim 10^6$ yr, however, vortex creep occurs through quantum tunneling, and the creep velocity is too insensitive to temperature for a thermal-rotational instability to occur. These older stars could be heated through a steady process of superfluid friction.Comment: 26 pages, 1 figure, submitted to Ap

Putting Students in the Front and Center: Exploring and Refining Student Centered Learning Techniques

Student-centered learning (SCL) represents a growing trend in higher education that emphasizes active learning strategies in lieu of more traditional passive strategies such as lecture. This study explores different techniques under the rubric of SCL to evaluate the utility of selected tools to enhance student knowledge and student learning. Specifically, this study tests the use of student portfolios, flipped classrooms, digital learning strategies, and problem-based learning to enhance a student’s learning experience. Originating as a collaborative effort from a university faculty learning community, this study includes a multi-disciplinary look at the effects of SCL approaches in the fields of aviation, security, and intelligence

Airline Customer Satisfaction 2015-2017 Results

Previous research on perceptions, satisfaction, and attitudes regarding the major commercial air carriers in the United States has provided little more than an interesting descriptive representation of the average air traveler. This study moves beyond basic descriptive information of air travelers to identify attitudinal patterns and relationships in the way consumers at varying levels of travel frequency view the commercial air industry. The Airline Passenger Survey (APS) elements developed via the utilization of rigorous scientific methodology, with the intention of capturing the most important data from passengers while reducing confusion or variability in comprehension of questions. APS items are a combination of demographic variables, categorical data, and Likert-type scale responses asking participants to evaluate statements regarding the current state of the airline industry