Andreas Thiel – författare

Governance becomes ever more interconnected and multilevel, and polycentric governance has been developed as a lens to analyze this complexity. At an aggregate level, it explores whether multiple autonomous actors are able to coordinate across interdependent sectors, scales, and decision-making arenas. It remains unclear, however, which factors shape polycentric governance in a particular social-ecological context, and what performance results from this governance; there has been no systematic way of mapping the shape that coordination adopts in polycentric governance. This volume develops and illustrates an approach to disentangling hybrid modes of coordination in polycentric governance, its determinants and outcomes. The authors build on the Institutional Analysis and Development framework, the flagship analytical tool of the Bloomington School of institutional analysis, and on the idea of governance hybrids. They propose that polycentric systems can be systematically characterized by looking at how competitive, cooperative, and hierarchical governance solutions coexist in providing multi-level coordination among actors. The framework is applied across five empirical chapters that explore diverse cases of water, energy, infrastructure, and mining governance in the United States, Switzerland, Mongolia, and Uganda, leading to the suggestion of context-dependent types of hybrids. The analytical approach, its ontological underpinnings, and its methodological implications are further reflected in two chapters suggesting alternative perspectives on the analysis of hybrids.Transformations in Governance is a major academic book series from Oxford University Press. It is designed to accommodate the impressive growth of research in comparative politics, international relations, public policy, federalism, and environmental and urban studies concerned with the dispersion of authority from central states to supranational institutions, subnational governments, and public-private networks. It brings together work that advances our understanding of the organization, causes, and consequences of multilevel and complex governance. The series is selective, containing annually a small number of books of exceptionally high quality by leading and emerging scholars.The series is edited by Liesbet Hooghe and Gary Marks of the University of North Carolina, Chapel Hill, and Walter Mattli of the University of Oxford.

There has been a rapid expansion of academic interest and publications on polycentricity. In the contemporary world, nearly all governance situations are polycentric, but people are not necessarily used to thinking this way. Governing Complexity provides an updated explanation of the concept of polycentric governance. The editors provide examples of it in contemporary settings involving complex natural resource systems, as well as a critical evaluation of the utility of the concept. With contributions from leading scholars in the field, this book makes the case that polycentric governance arrangements exist and it is possible for polycentric arrangements to perform well, persist for long periods, and adapt. Whether they actually function well, persist, or adapt depends on multiple factors that are reviewed and discussed, both theoretically and with examples from actual cases.

Towards the end of Caesar’s Gallic War, Rome had reached the Rhine. Since the campaigns under Emperor Augustus (15 B.C.), larger troop contingents were stationed along the river, with focal points around Mogontiacum/Mainz and in northern Switzerland. After the Battle of the Teutoburg Forest (9 AD), when the attempt to occupy all of Germania had failed, the Lower Rhine remained the frontier of the empire’s territory until Late Antiquity. East of the Middle and Upper Rhine, however, the Roman sphere of power was pushed forward several times over a period of almost 200 years, and from 90 AD at the latest, the construction of artificial borders was initiated. When the Roman expansion came to an end around 160 AD, the province was secured in its furthest extension by the “Frontal” or “Outer Upper-Germanic Limes”, which existed until the middle of the 3rd century. This book illustrates the historical and archaeological significance of the Upper Germanic Limes and provides an up-to-date overview of its manifold features in the field.

In 1949, in the aftermath of a devastating war, Eric Birley organised the First Congress of Roman Frontier Studies. His aim was not only to pursue the study of Roman frontiers but also to take a step towards restoring harmony in international relations within this field of research. The pattern was set early on: the exchange of information, networking and friendship. These three elements remain at the core of the approach of those organising and attending the Congress. They are reinforced by the pattern of the meetings, usually held every three years. The programme includes not only lectures but also visits to the local Roman military sites led by appropriate specialists. Over the 75 years since the First Congress, membership has grown enormously with more lecture theatres and more coaches being required every meeting. This publication marks the twenty-sixth Congress at Batumi in Georgia. It aims to help newer members understand the body they have joined; for those who have been attending for longer, it will be a reminder of friendships made and strengthened; for all, the book hopes to be a spur to continuing investigations and research into Rome’s greatest monument, its frontiers; for the moment of publication, it will be a celebration of the twenty-sixth Congress of Roman Frontier Studies.

As individuals age, their ability to respond to and clear pathogens and to control unwanted immune reactions declines, leading to a greater incidence of certain infectious diseases, autoimmunity and general immune dysfunctions. Most remarkably, the efficacy of vaccines is frequently decreased in elderly persons. Therefore, age-associated dysfunctions of the humoral and cellular immune responses have a strong clinical impact. Improving our understanding of the aged immune system is crucial in developing effective prevention and treatment programs that will facilitate healthy aging and improve the quality of life of the elderly population.The aim of this volume is to summarize current knowledge on the cellular and molecular aspects of the aging immune system, with an emphasis on infectious diseases and new therapeutic approaches.

As individuals age, their ability to respond to and clear pathogens and to control unwanted immune reactions declines, leading to a greater incidence of certain infectious diseases, autoimmunity and general immune dysfunctions. Most remarkably, the efficacy of vaccines is frequently decreased in elderly persons. Therefore, age-associated dysfunctions of the humoral and cellular immune responses have a strong clinical impact. Improving our understanding of the aged immune system is crucial in developing effective prevention and treatment programs that will facilitate healthy aging and improve the quality of life of the elderly population.The aim of this volume is to summarize current knowledge on the cellular and molecular aspects of the aging immune system, with an emphasis on infectious diseases and new therapeutic approaches.