Propulsion technology challenges for turn-of-the-century commercial aircraft

This paper highlights the efforts being performed or sponsored by NASA, in cooperation with the U.S. civil aviation industry, to address the propulsion system technological challenges that must be met in order to ensure a viable future for the industry. Both the subsonic and supersonic aeropropulsion programs are considered. Subsonic transport propulsion program elements, including ultra-high-bypass-ratio turbofans with attendant noise reduction efforts, high-efficiency cores, and combustor emissions reductions are discussed in terms of goals, technical issues, and problem solutions. Similarly, the high-speed research propulsion efforts addressing a high-speed commercial transport are reviewed in terms of environmental barrier issues, such as oxides of nitrogen and noise reduction, and the related economic issues

Advocacy for Incarcerated Youth : A Conversation With Peter Leone

Dr. Peter Leone is an internationally renowned researcher and advocate for incarcerated youth. Throughout his almost four decades at the University of Maryland, his expertise and research have influenced lawsuits related to the provision of education and special education services in juvenile corrections and paved the way for changes in policy and practice. Dr. Leone shared his reflections on his career, progress that has been made in juvenile justice education, urgent matters, future directions, and recommendations for future juvenile justice educators and researchers.Non peer reviewe

The solitary confinement of incarcerated American youth during COVID-19

Non peer reviewe

Inclusion in American and Finnish Schools : The Neglect of Youth with Emotional and Behavioral Disorders

Youth with emotional and behavioural disorders (EBD) are guaranteed the same right to inclusive education as other students with and without disabilities. While Finland and the United States (U.S.) are committed to the ideals of inclusion, evidence suggests that these students are often excluded. This paper discusses Finnish and U.S policies and practices that identify and 'push out' youth with EBD. Additionally, the quality of education in exclusive settings, including Finnish reform schools, U.S. alternative schools and day treatment/residential psychiatric facility schools, as well as (juvenile) correctional facilities in both countries, are discussed. Recommendations are provided for policy and practice that will promote access to inclusive education for these troubled youth.Peer reviewe

The history of the Southern Illinois Conference of the Methodist Church

Thesis (Ph.D.)--Boston University.The purpose of this dissertation is to trace the development of the Southern Illinois Conference of The Methodist Church. The primary sources for the study were The Minutes of the Annual Conferences, The Minutes of the Illinois Conference, and the Journal of the Southern Illinois Conference. Secondary sources had to be used for much of the early history. Methodism began in England and was brought to America by Wesley's preachers. Francis Asbury supervised the spread of Methodism from the Eastern seaboard into the Ohio River Valley [TRUNCATED

Viomycin: biosynthetic studies and the crystal structure of viomycidine

Ph.D.John R. Dye

Quality assessment of baby food produced from cereals enriched with date palm

The objectives of the study were to formulate a composite blend (weaning food) based on locally available cereals and legumes, to chemically evaluate their nutrient values, and compare with those of a proprietary formula. The study is part of the effort to provide home-based complementary (weaning) foods that can be more cost-effective to the low-income families. Composite blends were formulated based on protein basis of the food commodities used: millet, guinea corn, yellow corn, soybean, groundnut and date palm. Standard procedures of the Association of Official Analytical Chemists were used to determine the proximate chemical composition. Atomic absorption spectrophotometer and ion chromatographic analyzer were used to determine the mineral elements composition. The overall results indicated that crude protein, lipid, fibre, ash, moisture, energy and carbohydrate contents of the composite blend were either comparable or higher than values in the proprietary formula. The researchers believe that complementary foods formulated from locally available food commodities have great potential in providing nutritious foods that are practical, food-based approaches, aimed at combating the problem of malnutrition among infants and children in Nigeria in particular, and developing countries in general