This book contains highly effective ways to teach coding and computational thinking skills throughout primary and secondary schooling. It outlines a research informed path for students from birth to 18 years, identifying key skills and learning activities. Based on global perspectives and research at each stage, it outlines how these findings can be applied in the classroom. Teaching coding to students in K-12 has been a skillset that has been debated across educational jurisdictions globally for some time. The book provides examples of schools that are teaching coding to students in engaging and relevant ways, delivering well thought out compulsory curriculums. Additionally, it provides examples of schools where coding is not mandated in the curriculum and is taught in an ad-hoc manner. Through the full discussion of all of these varied examples, the book presents both sides of the serious and ongoing debate in the field as to whether coding should be taught in an explicit way at all . The increasing school of thought that teaching coding is a skill that is already obsolete, and the focus should be on computational thinking is completely examined and presented. In this book, both sides of the argument, as well as the specific, meticulous research underlying each side, are given equal weight. The debate is a serious one and requires a clearly defined thematic response with evidence on all sides of the argument presented rationally. This book does just that. Created by carefully selected authors from around the world, it will be a highly studied research reference.

Nuclear magnetic resonance spectroscopy, which has evolved only within the last 20 years, has become one of the very important tools in chemistry and physics. The literature on its theory and application has grown immensely and a comprehensive and adequate treatment of all branches by one author, or even by several, becomes increasingly difficult. This series is planned to present articles written by experts working in various fields of nuclear magnetic resonance spectroscopy, and will contain review articles as well as progress reports and original work. Its main aim, however, is to fill a gap, existing in literature, by publishing articles written by specialists, which take the reader from the introductory stage to the latest development in the field. The editors are grateful to the authors for the time and effort spent in writing the articles, and for their invaluable cooperation. The Editors Contents o. Kanert and M. Mehring Static Quadrupole Effects in Disordered Cubic Solids 1 F. Noack Nuclear Magnetic Relaxation Spectroscopy 83 Static Quadrupole Effects in Disordered Cubic Solids O. KANERT and M. MEHRING Physikalisches Institut der Universitat MUnster, BRD Contents I. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 II. Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. Zero Field Spectra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. High Field Spectra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. Transformation of the Electric Field Gradient Tensor . . . . . . . . . . 7 III. The Influence of the Quadrupole Perturbation on the NMR Signal . 8 1. General Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 a) The Free Induction Decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 b) The Wide-Line Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 c) The Spin Echo Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .: . .

Nuclear magnetic resonance spectroscopy, which has evolved only within the last 20 years, has become one of the very important tools in chemistry and physics. The literature on its theory and application has grown immensely and a comprehensive and adequate treatment of all branches by one author, or even by several, becomes increasingly difficult. This series is planned to present articles written by experts working in various fields of nuclear magnetic resonance spectroscopy, and will contain review articles as well as progress reports and original work. Its main aim, however, is to fill a gap, existing in literature, by publishing articles written by specialists, which take the reader from the introductory stage to the latest development in the field. The editors are grateful to the authors for the time and effort spent in writing the articles, and for their invaluable cooperation. The Editors Contents c. W. Hilbers and C. MacLean NMR of Molecules Oriented in Electric Fields.

Die quantitative Analyse ist eines der wichtigsten Hilfsmittel, das die Chemie zur Lei sung ihrer Aufgaben auf allen Gebieten brauch . Sie durchdringt aile Bereiche der Chemie und bedient sich in gleicher Weise chemischer und physikalischer Erkennt nisse. Die Theorie der quantitativen Analyse findet ihre Wurzeln in allen Bereichen der Naturwissenschaften. Derjenige, der die Methoden der quantitativen Analyse verstehen will, muB diese Wurzeln kennen und vor allem, neben derVertrautheit mit dem Stoff, Kenntnisse uber die physikalischen Erscheinungen besitzen. Zu den theoretischen Grundlagen der analytischen Chemie gibt es gute, ausfUhrli che Lehrbucher. Diese Lehrbucher will die vorliegende kleine Einfuhrung nicht er setzen, und der Gebrauch ausfuhrlichererWerke kann nicht genug empfohlen wer den. Hier sei zunachst auf die Bucher von I. M. Kolthoff et al.: Volumetric Analysis, Band I bis III, Intersience Publishers, Inc., New York, sowie auf die ausgezeichne ten eingehenden Werke von G. Hagg: Die theoretischen Grundlagen der analyti schen Chemie, Birkhauser, Basel, und F. Seel: Grundlagen der analytischen Che mie, Verlag Chemie, Weinheim, hingewiesen."