THE 1996 FARM BILL: IMPLICATIONS FOR FARMERS

Agricultural and Food Policy,

Real-time in-flight engine performance and health monitoring techniques for flight research application

Procedures for real time evaluation of the inflight health and performance of gas turbine engines and related systems were developed to enhance flight test safety and productivity. These techniques include the monitoring of the engine, the engine control system, thrust vectoring control system health, and the detection of engine stalls. Real time performance techniques were developed for the determination and display of inflight thrust and for aeroperformance drag polars. These new methods were successfully shown on various research aircraft at NASA-Dryden. The capability of NASA's Western Aeronautical Test Range and the advanced data acquisition systems were key factors for implementation and real time display of these methods

Real-time in-flight engine performance and health monitoring techniques for flight research application

Various engine related performance and health monitoring techniques developed in support of flight research are described. Techniques used during flight to enhance safety and to increase flight test productivity are summarized. A description of the NASA range facility is given along with a discussion of the flight data processing. Examples of data processed and the flight data displays are shown. A discussion of current trends and future capabilities is also included

IMPACT OF CHANGING CONSUMER PREFERENCES ON WILLINGNESS-TO-PAY FOR BEEF STEAKS IN ALTERNATIVE RETAIL PACKAGING

The purpose of this study was to identify how consumer perceptions of selected attributes of beef steaks, individual consumer demographics and perceived changes in purchases of substitute meats affect willingness-to-pay for beef rib-eye steaks in the traditional overwrapped styrofoam tray and vacuum skin packages. A laboratory auction was used to obtain willingness-to-pay data. The results suggest that health related factors, particularly the concern regarding cholesterol, reduced the willingness-to-pay for beef rib-eye steaks, regardless of package type. For the vacuum skin package to be successful, information about the package is necessary, along with providing a consistent and quality product, particularly with respect to trim.Consumer/Household Economics,

Development and validation of an instrument to measure user perceived service quality of mHealth

The role of service quality in fostering the growth of mHealth services has gained much attention in the academic and practitioner communities. However, empirical research in this area has been beset by inadequate conceptualization and the lack of a validated scale. This study addresses these limitations by theoretically conceptualizing and empirically validating a multidimensional service quality scale in the mHealth context. The findings show that mHealth service quality is a hierarchical, multidimensional, and reflective construct, which consists of three primary dimensions and eight subdimensions. The results also confirm that the mHealth service quality scale is more effective at predicting satisfaction and continuance in a nomological network

Modeling Quality Dynamics in IT Services Management

The increasing importance of information technology (IT) services in the global economy prompts IS researchers to focus on service quality dynamics to capture the critical interaction between human behavior and IT. The purpose of this study is to develop and validate a user perceived IT service quality model for mHealth using a cross-disciplinary approach. The conceptual model is rooted in the traditional cognition (service quality) – affective (satisfaction)– conation (continuance intentions) chain but explicitly identifies three primary dimensions (i.e., system quality, interaction quality and outcome quality) and eight subdimensions (system reliability, system efficiency, system privacy, responsiveness, assurance, empathy, utilitarian benefits and hedonic benefits) of IT service quality in mHealth. The findings of the study show that IT service quality is the third-order, reflective, hierarchical construct with strong positive effects on satisfaction and continuance intentions in a nomological network

AN EVALUATION OF PLS BASED COMPLEX MODELS: THE ROLES OF POWER ANALYSIS, PREDICTIVE RELEVANCE AND GOF INDEX

Structural equation modeling (SEM) is an important tool to estimate a network of causal relationships linking two or morecomplex concepts. The PLS approach to SEM, also known as component based SEM, is becoming more prominent forestimating large complex models due to its soft modeling assumptions. This ‘soft modeling’ refers to the greater flexibility ofPLS technique in developing and validating the complex models. However, to establish rigor in such complex modeling, thisstudy highlights the critical roles of power analysis, predictive relevance and GoF index. The findings of the study show thatpower analysis is essential to establish conjectures based on IT artifacts, predictive relevance is vital to measure how wellobserved values are reproduced by the model and finally, GoF index is crucial for assessing the global validity of a complexmodel

User Perceived Service Quality of mHealth Services in Developing Countries

Health challenges present arguably the most significant barrier to sustainable global development. The introduction of ICT in healthcare, especially the application of mobile communications, has created the potential to transform healthcare delivery by making it more accessible, affordable and effective across the developing world. However, there is growing concerns about the quality of such services with regard to the robustness of the service delivery platform, knowledge and competence of the provider, privacy and security of information and above all, their effects on satisfaction, future use intentions and quality of life. The aim of this paper is to explore, analyze and critically assess the use of existing service quality theories in the light of evolving and ubiquitous healthcare services and their underlying technologies. The conceptual model of the study identifies that there are three primary quality dimensions (platform quality, interaction quality and outcome quality) and ten subdimensions (System reliability, system efficiency, system availability, system adaptability, system privacy, assurance, responsivness, empathy, functional benefits and emotinal benefits) which play a vital role in capturing users’ overall perceptions of mobile health services. Finally, the study identifies future research directions and highlights the managerial implications in the context of developing countries

Chemical approaches for doping nanodevice architectures

Advanced doping technologies are key for the continued scaling of semiconductor devices and the maintenance of device performance beyond the 14 nm technology node. Due to limitations of conventional ion-beam implantation with thin body and 3D device geometries, techniques which allow precise control over dopant diffusion and concentration, in addition to excellent conformality on 3D device surfaces, are required. Spin-on doping has shown promise as a conventional technique for doping new materials, particularly through application with other dopant methods, but may not be suitable for conformal doping of nanostructures. Additionally, residues remain after most spin-on-doping processes which are often difficult to remove. In-situ doping of nanostructures is especially common for bottom-up grown nanostructures but problems associated with concentration gradients and morphology changes are commonly experienced. Monolayer doping (MLD) has been shown to satisfy the requirements for extended defect-free, conformal and controllable doping on many materials ranging from traditional silicon and germanium devices to emerging replacement materials such as III-V compounds but challenges still remain, especially with regard to metrology and surface chemistry at such small feature sizes. This article summarises and critically assesses developments over the last number of years regarding the application of gas and solution phase techniques to dope silicon-, germanium- and III-V-based materials and nanostructures to obtain shallow diffusion depths coupled with high carrier concentrations and abrupt junctions