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1. |
Record Nr. |
UNINA9910450442203321 |
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Autore |
Parker E. N (Eugene Newman), <1927-> |
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Titolo |
Spontaneous current sheets in magnetic fields : with applications to stellar x-rays / / Eugene N. Parker |
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Pubbl/distr/stampa |
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New York, New York ; ; Oxford, [England] : , : Oxford University Press, , 1994 |
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©1994 |
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ISBN |
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1-280-45095-9 |
9786610450954 |
0-19-536085-0 |
1-60129-868-4 |
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Descrizione fisica |
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1 online resource (435 p.) |
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Collana |
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International Series on Astronomy and Astrophysics ; ; 1 |
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Disciplina |
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Soggetti |
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Solar x-rays |
Cosmic magnetic fields |
Magnetostatics |
Electronic books. |
Sun Corona |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Contents; 1 INTRODUCTION; 2 THE FIELD EQUATIONS; 3 INVARIANCE, DEGENERACY, AND CONTINUOUS SOLUTIONS; 4 FORMAL STRUCTURE OF THE MAGNETOSTATIC EQUATIONS; 5 DIRECT INTEGRATION OF EQUILIBRIUM EQUATIONS; 6 EXAMPLES OF FIELD DISCONTINUITIES; 7 THE OPTICAL ANALOGY; 8 TOPOLOGY OF TANGENTIAL DISCONTINUITIES; 9 FLUID MOTIONS; 10 EFFECTS OF RESISTIVITY; 11 SOLAR X-RAY EMISSION; 12 UNIVERSAL NANOFLARES; References; Index |
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Sommario/riassunto |
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Expanding upon the ideas first proposed in his seminal book Cosmical Magnetic Fields, Eugene N. Parker here offers the first in-depth treatment of the magnetohydrodynamic theory of spontaneous magnetic discontinuities. In detailing his theory of the spontaneous formation of tangential discontinuities (current sheets) in a magnetic field embedded in highly conducting plasma, Parker shows how it can |
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be used to explain the activity of the external magnetic fields of planets, stars, interstellar gas clouds, and galaxies, as well as the magnetic fields in laboratory plasmas. Provocative and fascina |
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2. |
Record Nr. |
UNINA9910863148103321 |
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Titolo |
Delinquency and Substance Use in Europe : Understanding Risk and Protective Factors / / edited by David P. Farrington, Harrie Jonkman, Frederick Groeger-Roth |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2021 |
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ISBN |
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Edizione |
[1st ed. 2021.] |
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Descrizione fisica |
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1 online resource (XVI, 159 p. 19 illus., 13 illus. in color.) |
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Disciplina |
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Soggetti |
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Criminology |
Developmental psychology |
Developmental Psychology |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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Chapter 1. Introduction -- Chapter 2. Great Britain -- Chapter 3. The Netherlands -- Chapter 4. Germany -- Chapter 5. Croatia -- Chapter 6. Cyprus -- Chapter 7. Comparison of Countries -- Chapter 8. Conclusions . |
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Sommario/riassunto |
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This book examines the use of “Communities That Care” (CTC) interventions in European countries. It reports results obtained by using the CTC Youth Survey in five European countries covering different parts of Europe – Great Britain, the Netherlands, Germany, Croatia, and Cyprus. The main aim of the book is to compare (a) the prevalence of delinquency and substance use, (b) the prevalence of key risk and protective factors, and (c) the strength of relationships between risk and protective factors and delinquency and substance use, in these five European countries. The chapters in this book compare similarities and differences between the countries, possible explanations of these, and the implications of the results for theories and for intervention policy |
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and practice. Additionally, it provides evidence about the replicability over time and place of the strength of relationships between (i) risk and protective factors and (ii) delinquency and substance use. Inturn, this increases confidence in the generalizability of criminological theories over time and place. It will be of interest to researchers and practitioners in criminology and criminal justice, particularly those with an interest in developmental and life-course criminology, juvenile delinquency, and substance use, as well as crime prevention and intervention. |
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