The Huns, invading through Dariali Gorge on the modern-day border between Russia and Georgia in AD 395 and 515, spread terror across the late antique world. Was this the prelude to the apocalypse? Prophecies foresaw a future Hunnic onslaught, via the same mountain pass, bringing about the end of the world. Humanity’s fate depended on a gated barrier deep in Europe’s highest and most forbidding mountain chain. Centuries before the emergence of such apocalyptic beliefs, the gorge had reached world fame. It was the target of a planned military expedition by the Emperor Nero. Chained to the dramatic sheer cliffs, framing the narrow passage, the mythical fire-thief Prometheus suffered severe punishment, his liver devoured by an eagle. It was known under multiple names, most commonly the Caspian or Alan Gates. Featuring in the works of literary giants, no other mountain pass in the ancient and medieval world matches Dariali’s fame. Yet little was known about the materiality of this mythical place. A team of archaeologists has now shed much new light on the major gorge-blocking fort and a barrier wall on a steep rocky ridge further north. The walls still standing today were built around the time of the first major Hunnic invasion in the late fourth century – when the Caucasus defenses feature increasingly prominently in negotiations between the Great Powers of Persia and Rome. In its endeavor to strongly fortify the strategic mountain pass through the Central Caucasus, the workforce erased most traces of earlier occupation. The Persian-built bastion saw heavy occupation for 600 years. Its multi-faith medieval garrison controlled Trans-Caucasian traffic. Everyday objects and human remains reveal harsh living conditions and close connections to the Muslim South, as well as the steppe world of the north. The Caspian Gates explains how a highly strategic rock has played a pivotal role in world history from Classical Antiquity into the twentieth century.
Details Persias growing military and economic power in the late antique worldThe Sasanian Empire (3rd7th centuries) was one of the largest empires of antiquity, stretching from Mesopotamia to modern Pakistan and from Central Asia to the Arabian Peninsula. This mega-empire withstood powerful opponents in the steppe and expanded further in Late Antiquity, whilst the Roman world shrunk in size. Recent research has revealed the reasons for this success: notably population growth in some key territories, economic prosperity, and urban development, made possible through investment in agriculture and military infrastructure on a scale unparalleled in the late antique world. Our volume explores the empires relations with its neighbours and key phenomena which contributed to its wealth and power, from the empires armed forces to agriculture, trade and treatment of minorities. The latest discoveries, notably major urban foundations, fortifications and irrigations systems, feature prominently. An empire whose military might and culture rivalled Rome and foreshadowed the caliphate will be of interest to scholars of the Roman and Islamic world.Challenges our Eurocentric world view by presenting a Near-Eastern empire whose urban culture and military apparatus rivalled that of Rome Covers the latest discoveries on foundations, fortifications and irrigation systemsIncludes case studies on Sasanian frontier walls and urban culture in the Sasanian Empire
A Joint Fieldwork Project by the Iranian Cultural Heritage, Handcraft and Tourism Organisation and the Universities of Edinburgh and Durham (2014-2016)
A Joint Fieldwork Project by the Iranian Cultural Heritage, Handcraft and Tourism Organisation and the Universities of Edinburgh and Durham (2014-2016)
The Huns, invading through Dariali Gorge on the modern-day border between Russia and Georgia in AD 395 and 515, spread terror across the late antique world. Was this the prelude to the apocalypse? Prophecies foresaw a future Hunnic onslaught, via the same mountain pass, bringing about the end of the world. Humanity's fate depended on a gated barrier deep in Europe's highest and most forbidding mountain chain. Centuries before the emergence of such apocalyptic beliefs, the gorge had reached world fame. It was the target of a planned military expedition by the Emperor Nero. Chained to the dramatic sheer cliffs, framing the narrow passage, the mythical fire-thief Prometheus suffered severe punishment, his liver devoured by an eagle. It was known under multiple names, most commonly the Caspian or Alan Gates. Featuring in the works of literary giants, no other mountain pass in the ancient and medieval world matches Dariali's fame. Yet little was known about the materiality of this mythical place. A team of archaeologists has now shed much new light on the major gorge-blocking fort and a barrier wall on a steep rocky ridge further north. The walls still standing today were built around the time of the first major Hunnic invasion in the late fourth century - when the Caucasus defences feature increasingly prominently in negotiations between the Great Powers of Persia and Rome. In its endeavour to strongly fortify the strategic mountain pass through the Central Caucasus, the workforce erased most traces of earlier occupation. The Persian-built bastion saw heavy occupation for 600 years. Its multi-faith medieval garrison controlled Trans-Caucasian traffic. Everyday objects and human remains reveal harsh living conditions and close connections to the Muslim South, as well as the steppe world of the north. The Caspian Gates explains how a highly strategic rock has played a pivotal role in world history from Classical Antiquity into the twentieth century.
The Huns, invading through Dariali Gorge on the modern-day border between Russia and Georgia in AD 395 and 515, spread terror across the late antique world. Was this the prelude to the apocalypse? Prophecies foresaw a future Hunnic onslaught, via the same mountain pass, bringing about the end of the world. Humanity’s fate depended on a gated barrier deep in Europe’s highest and most forbidding mountain chain. Centuries before the emergence of such apocalyptic beliefs, the gorge had reached world fame. It was the target of a planned military expedition by the Emperor Nero. Chained to the dramatic sheer cliffs, framing the narrow passage, the mythical fire-thief Prometheus suffered severe punishment, his liver devoured by an eagle. It was known under multiple names, most commonly the Caspian or Alan Gates. Featuring in the works of literary giants, no other mountain pass in the ancient and medieval world matches Dariali’s fame. Yet little was known about the materiality of this mythical place. A team of archaeologists has now shed much new light on the major gorge-blocking fort and a barrier wall on a steep rocky ridge further north. The walls still standing today were built around the time of the first major Hunnic invasion in the late fourth century – when the Caucasus defences feature increasingly prominently in negotiations between the Great Powers of Persia and Rome. In its endeavour to strongly fortify the strategic mountain pass through the Central Caucasus, the workforce erased most traces of earlier occupation. The Persian-built bastion saw heavy occupation for 600 years. Its multi-faith medieval garrison controlled Trans-Caucasian traffic. Everyday objects and human remains reveal harsh living conditions and close connections to the Muslim South, as well as the steppe world of the north. The Caspian Gates explains how a highly strategic rock has played a pivotal role in world history from Classical Antiquity into the twentieth century.
A growing body of evidence has begun to reveal flaws in the traditional assumption of female passivity and lack of discrimination after copulation has begun. William Eberhard has compiled an impressive array of research on the ability of females to shape the outcome of mating. He describes studies of many different cryptic mechanisms by which a female can accept a male for copulation but nevertheless reject him as a father. Evidence from various fields indicates that such selectivity by females may be the norm rather than the exception. Because most post-copulatory competition between males for paternity is played out within the bodies of females, female behavior, morphology, and physiology probably often influence male success in these contests. Eberhard draws examples from a diversity of organisms, ranging from ctenophores to scorpions, nematodes to frogs, and crickets to humans. Cryptic female choice establishes a new bridge between sexual selection theory and reproductive physiology, in particular the physiological effects of male seminal products on female reproductive processes, such as sperm transport, oviposition, and remating. Eberhard interweaves his review of previous studies with speculation on the consequences of this theoretical development, and indicates promising new directions for future research.
Density Functional Theory (DFT) has firmly established itself as the workhorse for atomic-level simulations of condensed phases, pure or composite materials and quantum chemical systems. This work offers a rigorous and detailed introduction to the foundations of this theory, up to and including such advanced topics as orbital-dependent functionals as well as both time-dependent and relativistic DFT. Given the many ramifications of contemporary DFT, the text concentrates on the self-contained presentation of the basics of the most widely used DFT variants: this implies a thorough discussion of the corresponding existence theorems and effective single particle equations, as well as of key approximations utilized in implementations. The formal results are complemented by selected quantitative results, which primarily aim at illustrating the strengths and weaknesses of particular approaches or functionals. The structure and content of this book allow a tutorial and modular self-study approach: the reader will find that all concepts of many-body theory which are indispensable for the discussion of DFT - such as the single-particle Green's function or response functions - are introduced step by step, along with the actual DFT material. The same applies to basic notions of solid state theory, such as the Fermi surface of inhomogeneous, interacting systems. In fact, even the language of second quantization is introduced systematically in an Appendix for readers without formal training in many-body theory.
This entirely new English edition, comprehensively revised and edited by T.L. Blockeel, has been translated from German, with some additional text, by the authors. In a single volume, this work provides users with the means of making at least a preliminary identification of any bryophyte or fern which they might encounter in Europe or Macaronesia.
Biogenic toxins are fascinating natural products characterized by an enormous diversity of chemical structures and pharmacological activities. They not only pose hazards to humans and animals, but they are important components in the interplay of substances and living beings in nature and, moreover, important sources for new drugs. The present book is the first volume of the 5-volume series "Natural Poisons and Venoms". Volumes 1-3 cover poisons produced by plants, volume 4 summarizes poisons and venoms of animals and volume 5 deal with poisons of fungi, cyanobacteria, and other microorganisms. This volume starts with a fundamental chapter on history, chemistry and pharmacology of natural toxins, importance of the toxins for their producer, potential danger for humans and animals, and general aspects of toxicology including notes for first aid and proposals for clinical measures. The following chapters focus on the poisonous representatives of terpenes and the related steroids. The reader will be informed about the botany and occurrence of plants producing these toxins, the chemistry, the biogenesis and the pharmacology of the toxins, possible causes of poisonings, precautions to avoid poisonings, symptoms of poisonings of humans and animals, proposals for treatment measures and the possible usefulness, in the past, in present and in the future, of these toxins, especially for the development of new medicines. Numerous images of plants and chemical structural formulas complete the book. Extensive lists of literature references are given. The handbook is intended for physicians, veterinarians, pharmacists, chemists, biochemists, food chemists and biologists, for the students in the relevant fields, and also for interested laymen. You will be informed about all aspects of natural toxins based on the latest knowledge.
The first comprehensive synthesis on development and evolution: it applies to all aspects of development, at all levels of organization and in all organisms, taking advantage of modern findings on behavior, genetics, endocrinology, molecular biology, evolutionary theory and phylogenetics to show the connections between developmental mechanisms and evolutionary change. This book solves key problems that have impeded a definitive synthesis in the past. It uses new concepts and specific examples to show how to relate environmentally sensitive development to the genetic theory of adaptive evolution and to explain major patterns of change. In this book development includes not only embryology and the ontogeny of morphology, sometimes portrayed inadequately as governed by "regulatory genes," but also behavioral development and physiological adaptation, where plasticity is mediated by genetically complex mechanisms like hormones and learning. The book shows how the universal qualities of phenotypes--modular organization and plasticity--facilitate both integration and change. Here you will learn why it is wrong to describe organisms as genetically programmed; why environmental induction is likely to be more important in evolution than random mutation; and why it is crucial to consider both selection and developmental mechanism in explanations of adaptive evolution. This book satisfies the need for a truly general book on development, plasticity and evolution that applies to living organisms in all of their life stages and environments. Using an immense compendium of examples on many kinds of organisms, from viruses and bacteria to higher plants and animals, it shows how the phenotype is reorganized during evolution to produce novelties, and how alternative phenotypes occupy a pivotal role as a phase of evolution that fosters diversification and speeds change. The arguments of this book call for a new view of the major themes of evolutionary biology, as shown in chapters on gradualism, homology, environmental induction, speciation, radiation, macroevolution, punctuation, and the maintenance of sex. No other treatment of development and evolution since Darwin's offers such a comprehensive and critical discussion of the relevant issues. Developmental Plasticity and Evolution is designed for biologists interested in the development and evolution of behavior, life-history patterns, ecology, physiology, morphology and speciation. It will also appeal to evolutionary paleontologists, anthropologists, psychologists, and teachers of general biology.
Density Functional Theory is a rapidly developing branch of many-particle physics that has found applications in atomic, molecular, solid-state and nuclear physics. This book describes the conceptual framework of density functional theory and discusses in detail the derivation of explicit functionals from first principles as well as their application to Coulomb systems. Both non-relativistic and relativistic systems are treated. The connection of density functional theory with other many-body methods is highlighted. The presentation is self-contained; the book is, thus, well suited for a graduate course on density functional theory.
In addition to the more or less static properties of the environ ment, plants and animals must cope with its temporal variations. Among the most conspicuous temporal changes to which organisms are exposed are periodic phenomena generated by the rotation of the earth about its axis, its revolution around the sun, and the more complex movements of the moon in relation to both sun and earth. The first two of these astronomical cycles are basic to the familiar daily and annual rhythms, respectively, in the environment. The third generates somewhat more complex cycles, such as those in moonlight and variations in tides. These environmental cycles have provided challenges and opportunities for organisms to adjust their physiology and behavior to them. Indeed, the predictability inherent to these periodic processes has enabled organisms to evolve innate endogenous rhythmic programs that match the environmental cycles and allow, in a variety of different ways, adjustment of biological activities to the cycles of environmental changes. The endogenous nature of rhythmicity was first clearly recognized in the 1930's in daily periodicities, the most widely distributed and best investigated class of biological rhythms of this type. In the 1950's, demonstrations of endogenous tidal and lunar rhythms, which occur in some littoral and marine organisms, ensued. Another decade passed before endogenous annual periodicities were first demonstrated unambiguously.
This volume provides a comprehensive account of the use of modern imaging procedures for the diagnosis of arterial and venous diseases. Each imaging modality is separately considered and applications in individual diseases are then explained with the aid of excellent illustrations. In addition, vascular interventions such as balloon angioplasty, local thrombolysis, and stent implantation are discussed and appraised. Special attention is devoted to the problem of radiation burden for patients. The authors are all recognized experts in angiology, phlebology, and interventional radiology.
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