Taylor & Francis, 1987

London : , : Taylor and Francis, , 2017

1-351-44607-X

1-351-44608-8

0-203-75508-1

1-351-44609-6

1 online resource (x, 301 pages)

Contemporary concepts in physics ; ; Volume 3

530.1/43

Gauge fields (Physics)

String models

English

Includes bibliographical references (pages ix-x) and index.

chapter 1 Statistical Mechanics and Quantum Field Theory / A.M. Polyakov -- chapter 2 Asymptotic Freedom and the Renormalization Group / A.M. Polyakov -- chapter 3 The Strong Coupling Expansion / A.M. Polyakov -- chapter 4 Instantons in Abelian Systems / A.M. Polyakov -- chapter 5 Quark Confinement, Superfluidity, Elasticity. Criteria and Analogies / A.M. Polyakov -- chapter 6 Topology of Gauge Fields and Related Problems / A.M. Polyakov -- chapter 7 Analogies Between Gauge and Chiral Fields. Loop Dynamics / A.M. Polyakov -- chapter 8 The Large N Expansion / A.M. Polyakov -- chapter 9 Quantum Strings and Random Surfaces / A.M. Polyakov -- chapter 10 Attempt at a Synthesis / A.M. Polyakov.

"Based on his own work, the author synthesizes the most promising approaches and ideals in field theory today. He presents such subjects as statistical mechanics, quantum field theory and their interrelation, continuous global symmetry, non-Abelian gauge fields, instantons and the quantam theory of loops, and quantum strings and random surfaces. This book is aimed at postgraduate students studying field theory and statistical mechanics, and for research workers in continuous global theory."--Provided by publisher.

Frontiers Media SA, 2020

1 online resource (230 p.)

Oceanography (seas)

Science: general issues

English

Marine deoxygenation is increasingly recognized as a major environmental threat. Global warming leads a substantial part of this deoxygenation trend and, it is foreseen to exacerbate during the next decades both in the open ocean and in the coastal waters, which are additionally exposed to increasing anthropogenic pressure. The number of affected coastal systems is already growing exponentially and the most recent assessments of oceanic deoxygenation show the highest rates. Two main challenges are thus addressed to the scientific community: 1) To understand and predict the response of global biogeochemical cycles to deoxygenation. In particular, to clarify how the disturbance induced by lower oxygen conditions on nitrogen and phosphorus cycles across the estuarine-shelves-ocean continuum may feedback on climate systems and on oxygen balance. 2) To evaluate and mitigate the threat posed by deoxygenation on essential and valuable marine goods and services and on marine biodiversity. Open ocean and coastal deoxygenation differ in terms of temporal scale, morphology, driving processes and implications. However, we consider it opportune to gather contributions related to both typologies in order to highlight interactions and common processes, and to promote the synoptic perception of marine deoxygenation required for public awareness and preluding the development of specific mitigation strategies.