About the origins of the general theory of relativity: Einstein's search for the truth

On the 20th June 1933 Professor Einstein addressed a large and enthusiastic audience in the Victorian Gothic Bute Hall of the University of Glasgow. Einstein spoke 'About the Origins of the General Theory of Relativity'. In 1905 Einstein had changed the face of physics forever with the publication of his radical new ideas on special relativity. His general theory of relativity was introduced to the world in 1915. However in 1933, Einstein faced another challenge—survival in a world of change. This paper explores Einstein's fascinating address to the Glasgow audience in that year

Rebecca Rowe: Professor of Natural Resources and the Environment

Rebecca Rowe is an associate professor and program coordinator for wildlife and conservation biology in the Department of Natural Resources and the Environment at the University of New Hampshire. Below is a correspondence with Dr. Rowe about her own research and her mentoring experiences with undergraduate students

Nick Smith: Professor of Philosophy

Nick Smith is professor and chair of the Department of Philosophy at the University of New Hampshire. Below is a correspondence with Dr. Smith about his own research and his mentoring experiences with undergraduate students

Jill Thorson: Professor of Communication Sciences and Disorders

Jill Thorson is an assistant professor in the Department of Communication Sciences and Disorders at the University of New Hampshire. Below is a correspondence with Dr. Thorson about her own research and her mentoring experiences with undergraduate students

Juvenile Probation Officers\u27 Perspectives of the Special Education Process

This qualitative research study examined juvenile probation officers\u27 perspectives of special education. Juvenile probation officers who work with youth who receive special education services agreed to participate in this study to help the researcher learn more about how they view special education. Since the two professional groups (juvenile probation officers and special education teachers) often work with the same demographic, learning more about their perspectives can help improve their working relationships. However, even more importantly, the services youth receive may also be improved through gaining a better understanding of others\u27 perspectives. A combination of formal interview questions and observations were used to collect the data. The themes that emerged from the data were: inadequate communication/lack of understanding among professionals, lack of respect for other professionals and/or their time, respect for education, and frustration with the special education. This suggests that the juvenile probation officers in this study feel that education is very important for the youth they serve, but that they could use more information about special education and benefit from improving their communication and interactions with other professionals. Additionally, special educators could also improve on their communication skills and their understanding of the correctional system when interacting with probation staff

Zero phase sequence voltage injection for the alternate arm converter

The Alternate Arm Converter (AAC) is a voltage source converter being developed as an alternative to the Modular Multilevel Converter (MMC) for HVDC power transmission and reactive power compensation. Each Arm of the converter contains high voltage series IGBT Director Switches and full-bridge cells, which enables the VSC to ride through AC and DC network faults. This paper describes how the AAC can be optimised by modulating the converter terminal voltages with zerophase sequence triplen harmonic components. The optimisation reduces the ratio of the number of the full-bridge cells compared to the simpler Director Switches which offers a valuable improvement in footprint and efficiency