Pulsating White Dwarf Stars and Precision Asteroseismology

Galactic history is written in the white dwarf stars. Their surface properties hint at interiors composed of matter under extreme conditions. In the forty years since their discovery, pulsating white dwarf stars have moved from side-show curiosities to center stage as important tools for unraveling the deep mysteries of the Universe. Innovative observational techniques and theoretical modeling tools have breathed life into precision asteroseismology. We are just learning to use this powerful tool, confronting theoretical models with observed frequencies and their time rate-of-change. With this tool, we calibrate white dwarf cosmochronology; we explore equations of state; we measure stellar masses, rotation rates, and nuclear reaction rates; we explore the physics of interior crystallization; we study the structure of the progenitors of Type Ia supernovae, and we test models of dark matter. The white dwarf pulsations are at once the heartbeat of galactic history and a window into unexplored and exotic physics.Comment: 70 pages, 11 figures, to be published in Annual Review of Astronomy and Astrophysics 200

Symmetric coupling of finite and boundary elements for exterior magnetic field problems

SIGLEAvailable from TIB Hannover: RR 6943(2001,5) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Impact of School Inspections on Teaching and Learning (ISI-TL)

This dataset includes the responses of principals in primary and secondary education to a survey in 2011, 2012 and 2013 about impact of school inspections in 8 countries. This dataset is created within the EU Life Long Learning-project ‘Impact of School Inspections on Teaching and Learning’. This study compares the effects and unintended consequences of school inspections in six European countries (the Netherlands, the UK, Austria, the Czech Republic, Ireland, Sweden). The project ran for a total of three years (January 2011-December 2013); each year principals in primary education and in secondary education in all the eight participating countries were asked to participate in an online survey. The survey includes questions on educational quality and change capacity in schools, changes made in the quality and change capacity of the school, inspection activities in the school, the school’s acceptance and use of feedback, the extent to which inspection standards set expectations and promote self-evaluations and choice/voice/exit of stakeholders in response to inspection reports

Impact of School Inspections on Teaching and Learning (ISI-TL)

This dataset includes the responses of principals in primary and secondary education to a survey in 2011, 2012 and 2013 about impact of school inspections in 8 countries. This dataset is created within the EU Life Long Learning-project ‘Impact of School Inspections on Teaching and Learning’. This study compares the effects and unintended consequences of school inspections in six European countries (the Netherlands, the UK, Austria, the Czech Republic, Ireland, Sweden). The project ran for a total of three years (January 2011-December 2013); each year principals in primary education and in secondary education in all the eight participating countries were asked to participate in an online survey. The survey includes questions on educational quality and change capacity in schools, changes made in the quality and change capacity of the school, inspection activities in the school, the school’s acceptance and use of feedback, the extent to which inspection standards set expectations and promote self-evaluations and choice/voice/exit of stakeholders in response to inspection reports