1.

Record Nr.

UNIBAS000038503

Autore

Lacarra, Maria Eugenia

Titolo

El poema del mio Cid : realidad historica e ideologia / por Maria Eugenia Lacarra

Pubbl/distr/stampa

Madrid : <<José>> Porrúa Turanzas, stampa 1980

ISBN

84-7317-087-3

Descrizione fisica

XV, 303 p. ; 22 cm

Collana

Ensayos

Disciplina

861.109

Soggetti

Poema del mio Cid - Fonti

Lingua di pubblicazione

Spagnolo

Formato

Materiale a stampa

Livello bibliografico

Monografia

2.

Record Nr.

UNINA9910454082903321

Titolo

Principles and applications of positron & positronium chemistry [[electronic resource] /] / editors, Y.C. Jean, P.E. Mallon, D.M. Schrader

Pubbl/distr/stampa

River Edge, New Jersey, : World Scientific, c2003

ISBN

1-281-92827-5

9786611928278

981-277-561-7

Descrizione fisica

1 online resource (424 p.)

Altri autori (Persone)

JeanY. C

MallonP. E

SchraderD. M

Disciplina

539.7214

Soggetti

Positrons

Positron annihilation

Positronium

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa



Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Preface; Acknowledgments; CONTENTS; Chapter 1 Introduction to Positron and Positronium Chemistry; 1.1 A new chemistry: positronium chemistry; 1.2 Existing books and articles on positron and positronium chemistry and annihilation; Problems; References; Answers to problems; Chapter 2 Compounds of Positrons and Positronium; 2.1 Introduction; 2.2 Quantum mechanical considerations; 2.2.1 Basic physics of mixed electron-positron systems; 2.2.2 The calculation of annihilation rates; 2.2.3 Quantum mechanical methods; 2.2.3.1 The stochastic variational method (SVM)

2.2.3.2 The quantum Monte Carlo (QMC) method2.2.3.3 Other methods; 2.3 Current knowledge of bound states; 2.3.1 Polyleptons; 2.3.2 One-electron atoms; 2.3.3 Two-electron atoms (excluding He); 2.3.4 The nonmetals; 2.3.5 The noble gases; 2.3.6 Molecules; Acknowledgments; References; Chapter 3 Experimental Techniques in Positron Spectroscopy; 3.1 Introduction; 3.2 Positron sources; 3.2.1 Introduction; 3.2.2 Radioactive sources for laboratory experiments; 3.2.3 Positron sources for facility-based beams; 3.2.4 Accelerator-based positron sources for the laboratory

3.3 Particle and radiation detectors3.3.1 Radiation detectors; 3.3.1.1 Scintillation detectors; 3.3.1.2 Semiconductor detectors; 3.3.1.3 Multiwire proportional chambers; 3.3.2 Particle detectors; 3.3.2.1 Scintillators; 3.3.2.2 Surface-barrier detectors; 3.3.2.3 Channel electron multipliers; 3.4 Notes on pulse electronics; 3.4.1 Transmission of pulses; 3.4.2 Elements of circuits used in positron spectroscopy; 3.4.2.1 Discriminators; 3.4.2.2 Amplifiers; 3.4.2.3 Single and multi-channel analyzers; 3.5 Lifetime spectrometry; 3.6 Doppler broadening spectroscopy; 3.6.1 Introduction

3.6.2 Experimental set-up3.6.3 Data analysis; 3.6.4 Two-detector technique; 3.7 Age-momentum correlation (AMOC); 3.8 Angular correlation of annihilation radiation (ACAR); 3.8.1 One-dimensional ACAR; 3.8.2 Two-dimensional ACAR; 3.9 Positron beams; 3.9.1 Positron moderators; 3.9.2 Laboratory-based beams; 3.9.3 Facility-based beams; 3.9.4 Beam bunching; 3.9.5 Polarized positron beams; 3.9.6 MeV positron beams; 3.9.7 Time-of-flight spectrometry; 3.9.8 Positron microscopy; 3.9.9 Plasma-generated positron beams; Problems; References; Answers to Problems

Chapter 4 Organic and Inorganic Chemistry of the Positron and Positronium4.1 Positronium formation in condensed matter; 4.1.1 The spur model in polar solvents (Strasbourg Group) [2]; 4.1.2 The spur model in nonpolar solvents; 4.1.3 Quantitative approaches and modeling of Ps formation; 4.1.4 Positronium formation in solids; 4.2 Positron chemistry; 4.3 Positronium states in condensed matter; 4.3.1 Ps trapping in liquids: the bubble model; 4.3.2 Ps trapping in solids: the free volume model; 4.3.3 Ps states in condensed matter: the contact density parameter; 4.4 Positronium chemistry in liquids

4.4.1 Positronium reactions

Sommario/riassunto

This book provides a comprehensive description of the principles and applications of positron and positronium chemistry. Pedagogical and tutorial in nature, it will be ideal for graduate students and researchers in the area of positron annihilation spectroscopy. The contributing authors are authoritative scientists prominent in the frontiers of research, actively pursuing positron annihilation research on chemical and applied systems. Contents: Introduction to Positron and Positronium Chemistry (Y C Jean et al.); Compounds of Positrons and



Positronium (D M Schrader); Experimental Techniques in

3.

Record Nr.

UNINA9910795744403321

Autore

Preston Todd

Titolo

A Handbook of Animals in Old English Texts / / Todd Preston

Pubbl/distr/stampa

Leeds, England : , : Arc Humanities Press, , [2022]

©2022

ISBN

9781802700299

9781641893107

Edizione

[First edition.]

Descrizione fisica

1 online resource (208 pages)

Collana

Arc Reference Series

Disciplina

809.93362

Soggetti

Animals in literature

English literature - Old English, ca. 450-1100 - History and criticism

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

Frontmatter -- CONTENTS -- PREFACE -- INTRODUCTION -- ANIMAL ENTRIES -- BIBLIOGRAPHY -- INDEX OF OLD ENGLISH HEADWORDS

Sommario/riassunto

A Handbook of Animals in Old English Texts is the definitive handbook for students, scholars, and observers of the non-human in early medieval England. In this interdisciplinary compendium to the animal inhabitants of medieval Britain, Preston documents each creature mentioned in the Old English literary textual canon and correlates its standard literary interpretation with relevant historical, archaeological, and ecological studies. Beyond its usefulness as a reference work, Preston's text challenges the reader to move beyond a literary analysis of the figural beast to one that leaves space for the actual animal.