Quantum mechanical problems capable of exact solution are traditionally solved in a few instances only (such as the harmonic oscillator and angular momentum) by operator methods, but mainly by means of Schrodinger's wave mechanics. The present volume shows that a large range of one- and three- dimensional problems, including certain relativistic ones, are solvable by algebraic, representation-independent methods using commutation relations, shift operators, the viral, hyperviral, and Hellman-Feynman theorems. Applications of these operator methods to the calculation of eigenvalues, matrix elements, and wavefunctions are discussed in detail. This volume provides an outstanding introduction to the use of operator methods in quantum mechanics, and also serves as a reference work on this topic. As such it is an excellent complement to senior and graduate courses in quantum mechanics. Although primarily a book on applications of operator methods, the presentation is made self-contained by the inclusion of an introductory chapter on the formalism of quantum mechanics. Additional background material supplements the volume at various points in the text. Although there has been much research on operator methods to solve quantum mechanical problems, until now many of these results have remained scattered throughout the literature. Nonspecialists, as well as graduate and upper division students in physics will find this accessible volume to be essential reading in theoretical physics.

Now in its third year, the AVBOB Poetry Project has garnered several industry prizes.

I Wish I'd Said: Volume 2 includes 101 poems with English translations: 55 specially commissioned poems and 44 poems drawn from the 2018 competition. And, following the blueprint of the first volume, we pay homage to the Khoisan languages, by including two poems by the |Xam poet Dia!kwain. South African poets old and new were asked to submit poems on loss, grieving, love and consolation in their mother tongues.

This new collection – and the online poetry portal – forms a space where the voiceless may be heard, and where we find common ground. Loss is a universal language and poetry its voice.

Die meeste sterre is lankal dood is die bekroonde digter Johann de Lange se dertiende bundel. Dit bestaan uit ses afdelings, deurgaans gewy aan vlietende oomblikke vasgevang in 'n vers ("om met woorde die onsegbare te sê"). Die bundel het 'n elegiese toonaard, en word oorheers deur 'n bewustheid van verlies & verganklikheid, van "inskaduwings van die lig". Verse oor die skryfproses figureer as teenvoeter vir die verbygaande aard van mens wees. Dit is verse vir "my mooi dooies". In "Oggendmusiek" beskryf die digter 'n vroegoggendkoor van voëls voor sonsopkoms, elders 'n koorddanser, voetjie vir voetjie oor die spantou. Soos in sy vorige werk is die erotiese verse 'n hoogtepunt in die bundel, bv in "Ode aan die mielie": "Nét so, nog aan die oggend ­­ tussen die syige bene van die dag ­­staan hy, volryp, pittig & reg."

Bloed & sneeu

Bloed op sneeu is ’n pasgebore rooi,
van iets gewond, ’n struikelende spoor.
En die sneeu? Is daar énigiets so mooi,
so prilwit gespits, as ’n haseoor?

This book presents new approaches to security risk analysis and scenario building on the basis of water works such as flood barriers and storm surge barriers. Defending flood barriers is not only important because of climate change and rising sea levels, but also due to the vulnerability of fresh water supplies and the increasing number of people living in vulnerable low-lying river and sea deltas.

NMR of Ordered Liquids gives a unique overview of the scope and limitations of the NMR of oriented liquids, based on contributions from acknowledged experts in the field. The book consists of four sections:

-detailed general introduction which covers the basic principles and sophisticated experimental techniques;
-wide variety of applications ranging from NMR studies of small atoms and molecules in anisotropic liquids to the utilization of residual dipolar couplings for structure determination of biological molecules;
-summary of the sophisticated theoretical treatments, computer simulations, and phenomenological models for anisotropic intermolecular interactions that are widely used in the analysis of experimental results;
-overview of the dynamical aspects and relaxation processes relevant for orientationally ordered molecules.

Ignaz Maybaum (1897-1976) is widely recognized as one of the foremost Jewish theologians of the post-Holocaust era. Although he is mentioned in most treatments of post-Holocaust Jewish theology, his works are out of print and are only accessible to a small readership. Nicholas de Lange (who worked closely with Maybaum in his lifetime), has made a representative selection from his writings, under various headings: Judaism in the Modern Age, Trialogue between Jew, Christian, and Muslim, the Holocaust, and Zion. In an Introduction, he sets Maybaum's thoughts against the background of their time, indicates their main lines, and assesses how much of them is still of value today.

How can finite minds approach an infinite and ultimately unknowable God? Is it true that Christianity is a religion of love and Judaism a religion of law? Can a Jew accept the Orthodox Christian veneration of holy images? How much do Jews and Orthodox Christians have in common when they worship God? What can be done about Christian prayers that Jews find offensive? How much responsibility do Christians carry for antisemitism? These and other questions are addressed in this book which is intended as a major contribution to encounters between Judaism and Orthodox Christianity. In seventeen chapters, expert theologians and historians examine central issues of common concern relating to theology and worship as well as to the vexed historical question of anti-Semitism. The focus is on dialogue and deepened knowledge, as the contributors s dispel widely-held misconceptions and identify a good deal of common ground.

This book introduces the concept of 'healthy healthcare' and posits that this new concept is necessary in light of a shortage of healthcare staff in the near future. Healthy healthcare implies that healthcare systems are designed, managed and financed in balance with the available resources to improve workers' health and performance. Ultimately, a balanced perspective taking into account the patient, the staff and the complex healthcare system will lead to a more resource-efficient delivery of high-quality healthcare services. The book synthesizes evidence-based practice and research on the links between healthcare services, employee health and wellbeing, and quality of healthcare from an interdisciplinary perspective. Written by leading experts in this rapidly expanding field of inquiry, this is the first book ever compiled on the subject with such scope and breadth. It discusses how to conduct interventions and research on healthy healthcare with different populations and settings. The chapters critically examine the links between these pillars; and identify research gaps in both methodology and content from the perspectives of psychology, medicine, nursing, economy, law, technology, management and more. This innovative book is of interest to researchers and students of health sciences, public health, health economics and allied disciplines, as well as to stakeholders in the healthcare industry. Chapter 24 of this book is available open access under a CC-By NC-ND 4.0 license at link.springer.com

This open access book presents a selection of the best contributions to the Digital Cities 9 Workshop held in Limerick in 2015, combining a number of the latest academic insights into new collaborative modes of city making that are firmly rooted in empirical findings about the actual practices of citizens, designers and policy makers. It explores the affordances of new media technologies for empowering citizens in the process of city making, relating examples of bottom-up or participatory practices to reflections about the changing roles of professional practitioners in the processes, as well as issues of governance and institutional policymaking.

Johann de Lange, wat in 2011 die Hertzogprys vir poesie ontvang het vir sy bundel Die algebra van nood (2009), bevestig met hierdie bundel kwatryne sy meesterskap. Die bundel bestaan uit 100 kwatryne wat in ses afdelings verdeel is. Binne die klein bestek van vier reels kry De Lange dit telkens reg om kort flitse – byna soos weerlig – van betekenis aan die leser oor te dra. Dit is haas onmoontlik om die groot verskeidenheid temas wat in hierdie gedigte aangeraak word, saam te vat. Daar is liefdesverse, verse oor voels, plante, verwysings na ander skrywers wat wissel van die ou Grieke Theognis en Anakreon tot by Afrikaanse digters soos Joan Hambidge en Sheila Cussons, daar is kort besinnings oor verganklikheid en die tydloosheid van 'n by wat in amber gevang is, verlies en die dood. Bowenal demonstreer die digter hier op verbluffende wyse wat met die digtheid van digterlike taal vermag kan word.

Funeral service and insurance provider AVBOB, through its sponsorship of the AVBOB Poetry Project, gave South Africa the gentlest, most inclusive act of bereavement support in the form of an online poetry competition in all 11 official languages.

Poets submitted words of loss and consolation in all 11 mother tongues. Editors in all languages were carefully selected to curate the collection of poems entered, and they too were transformed by the process.

This is a poetry portal for all South Africans – a cathartic space where amateur and accomplished poets can use their craft to comfort others.

The book brings together specially-commissioned contributions by leading scholars, who survey what has been achieved in recent research on medieval Hebrew language and texts, and shed light on various aspects, particularly the ways the Jewish, Christian and Muslim scholars in the Middle Ages influenced each other. There are contributions by long-established and younger scholars from around the world, and particularly from western European countries where Hebrew studies are currently flourishing (Britain, Holland, France, Spain).

This collection - published here in English for the first time - brings together a number of political, personal, and literary pieces by Israel's most celebrated modern novelist. Lively, questioning, and undogmatic, the author's compelling literary insights make for consistently stimulating reading, while his perceptive commentary on Israel's political and cultural situation seems more relevant then ever in the light of current developments in the Middle East. Topics covered include: an examination of the Israeli-Palestinian conflict as a dispute between 'right and right'; reflections on the character of Zionism, on the concept of 'homeland', and on the nature of the kibbutz; the meaning of socialism in the Israeli context; and portraits of several Jewish writers and thinkers whose ideas and themes have proved influential or determinative for Amos Oz himself. These essays, which put a unique perspective on the author's own experiences and development, reveal a complex and humane figure of practical political influence as well as of significant literary stature. Their refreshing blend of scepticism and idealism are sure to win for Oz new readers, while delighting those already familiar with his writings, who will recognise here the many qualities which have generated international critical acclaim.

Will keep you guessing till the last page! CARA HUNTER If you love Clare Mackintosh, Cara Hunter or Lisa Jewell, you will be utterly gripped by this dark, twisty police thriller - the first case for DS Kate Munro. * * * * * * * TWINS HAVE A SPECIAL BOND SOMEONE WILL KILL TO BREAK . . . As children, Gabi and Thea were like most identical twin sisters: inseparable. Now adults, Gabi is in a coma following a vicious attack and Thea claims that, until last week, the twins hadn't spoken in fifteen years. But what caused such a significant separation? And what brought them back together so suddenly? Digging into the case, DS Kate Munro is convinced the crime was personal. Now she must separate the truth from the lies and find the dangerous assailant - before any more blood is spilled . . . * * * * * * * PRAISE FOR THE DREAM WIFE I absolutely raced through it - ELLE CROFT Overturns every assumption you have at the beginning in a startling and clever twist - CARA HUNTER A clever tale where things aren't what they seem - DAILY MAIL

Essentials of Body MRI extensively covers the field, offering clear and detailed guidance on MRI as an invaluable tool for the primary diagnosis and problem solving of diseases of the body, including the abdomen, liver, pancreas, pelvis, heart, urinary tract, and great vessels. The beginning chapters focus on the physics, pulse sequences and other practical considerations related to body MR imaging to help the reader fully understand the imaging appearance of clinical disease. The remaining chapters discuss the clinical applications, with the topics spanning from the normal anatomic structures and diagnosis of abdominal, pelvic, cardiac and vascular diseases to the modality's role as a tool for solving diagnostic problems. The key points of each chapter are boxed as "Essentials to Remember" for rapid review and learning. Written in clear, accessible text, and featuring 887 figures and numerous tables, Essentials of Body MRI is a resource that the radiology resident and physician will turn to again and again.