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1. |
Record Nr. |
UNINA9910511313203321 |
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Titolo |
Confronting drought in Africa's drylands : opportunities for enhancing resilience / / Raffaello Cervigni and Michael Morris, editors |
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Pubbl/distr/stampa |
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Washington, District of Columbia : , : The World Bank, , 2016 |
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©2016 |
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ISBN |
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Descrizione fisica |
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1 online resource (299 p.) |
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Collana |
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Disciplina |
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Soggetti |
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Arid regions - Africa, Sub-Saharan - Economic conditions - 21st century |
Sustainable development - Africa, Sub-Saharan |
Drought management - Africa, Sub-Saharan |
Poverty - Government policy - Africa, Sub-Saharan |
Electronic books. |
Africa, Sub-Saharan Economic conditions 21st century |
Africa, Sub-Saharan Social policy |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"A copublication of Agence Française de Développement and the World Bank." |
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Nota di contenuto |
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Cover; Contents; Foreword; Acknowledgments; About the Editors; About the Authors; Abbreviations; Overview; Scope of inquiry: Focus of this book; Conceptual framework: The determinants of resilience; Vulnerability in drylands if transformation is not managed; Options for increasing resilience; Cross-cutting interventions to enhance resilience; Strengthening social protection programs; Enhancing preparedness with disaster risk management instruments; Evaluating options: Assessing the relative merits of resilience-enhancing interventions; Potential impacts of livelihood interventions |
The fiscal dividend of resilience-enhancing interventions: A country typologyPromoting new livelihoods to manage the transformation; Policy recommendations; Note; References; Part A. Key Issues and Challenges; 1. The Central Role of Drylands in Africa's Development Challenge; Definition of ""drylands""; Reasons for concern about |
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drylands; Objectives of this book; Value-added of this book; Limitations of the book; References; 2. Resilience and its Determinants: A Conceptual Framework; Analyzing resilience: Conceptual and data challenges; The determinants of resilience |
The policy significance of the determinants of resilienceShocks affecting drylands; Relationship between resilience and poverty; Note; References; 3. Vulnerability in Drylands Today; Quantifying the dimensions of vulnerability across livelihood types; Estimating vulnerability across livelihood strategies; Selected drivers of vulnerability; Political economy factors affecting resilience; Note; References; 4. Vulnerability in Drylands Tomorrow: Business as Usual Raising Ominous Prospects; Estimating vulnerability in 2030: A scenario modeling approach; A brief description of the umbrella model |
Results: Vulnerability estimates for 2030Effects of climate change on future vulnerability; Note; References; Part B. Identifying Solutions; 5. Livestock Production Systems: Seizing the Opportunities for Pastoralists and Agro-Pastoralists; Current situation; Opportunities; Challenges; Key messages; Notes; References; 6. Tree-Based Systems: Multiple Pathways to Boosting Resilience; Current situation; Management strategies for tree-based systems; Benefits of tree-based systems; Opportunities; Challenges; Key messages; References |
7. Agriculture: More Water and Better Farming for Improved Food SecurityCurrent situation; Opportunities; Challenges; Key messages; References; 8. Healthy Ecosystems: Integrated Approaches for Well-Balanced Landscapes; Current situation; Opportunities; Challenges; Key messages; References; 9. Market Connections: Promoting Trade to Promote Resilience; Current situation; Opportunities; Challenges; Key messages; Note; References; 10. Social Protection: Building Resilience among the Poor and Protecting the Most Vulnerable; Current situation; Opportunities; Challenges; Key messages; Notes |
References |
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2. |
Record Nr. |
UNINA9910299778503321 |
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Autore |
Cardin Franco |
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Titolo |
Elementary Symplectic Topology and Mechanics / / by Franco Cardin |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2015 |
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ISBN |
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Edizione |
[1st ed. 2015.] |
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Descrizione fisica |
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1 online resource (237 p.) |
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Collana |
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Lecture Notes of the Unione Matematica Italiana, , 1862-9113 ; ; 16 |
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Disciplina |
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Soggetti |
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Mathematical physics |
Geometry, Differential |
Calculus of variations |
Mathematical Physics |
Differential Geometry |
Calculus of Variations and Optimal Control; Optimization |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Beginning -- Notes on Differential Geometry -- Symplectic Manifolds -- Poisson brackets environment -- Cauchy Problem for H-J equations -- Calculus of Variations and Conjugate Points -- Asymptotic Theory of Oscillating Integrals -- Lusternik-Schnirelman and Morse -- Finite Exact Reductions -- Other instances -- Bibliography. |
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Sommario/riassunto |
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This is a short tract on the essentials of differential and symplectic geometry together with a basic introduction to several applications of this rich framework: analytical mechanics, the calculus of variations, conjugate points & Morse index, and other physical topics. A central feature is the systematic utilization of Lagrangian submanifolds and their Maslov-Hörmander generating functions. Following this line of thought, first introduced by Wlodemierz Tulczyjew, geometric solutions of Hamilton-Jacobi equations, Hamiltonian vector fields and canonical transformations are described by suitable Lagrangian submanifolds belonging to distinct well-defined symplectic structures. This unified |
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point of view has been particularly fruitful in symplectic topology, which is the modern Hamiltonian environment for the calculus of variations, yielding sharp sufficient existence conditions. This line of investigation was initiated by Claude Viterbo in 1992; here, some primary consequences of this theory are exposed in Chapter 8: aspects of Poincaré's last geometric theorem and the Arnol'd conjecture are introduced. In Chapter 7 elements of the global asymptotic treatment of the highly oscillating integrals for the Schrödinger equation are discussed: as is well known, this eventually leads to the theory of Fourier Integral Operators. This short handbook is directed toward graduate students in Mathematics and Physics and to all those who desire a quick introduction to these beautiful subjects. |
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