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1. |
Record Nr. |
UNINA9910454850403321 |
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Autore |
Polak-Sahm Varda |
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Titolo |
The house of secrets [[electronic resource] ] : the hidden world of the mikveh / / Varda Polak-Sahm ; translated from the Hebrew by Anne Hartstein Pace |
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Pubbl/distr/stampa |
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Boston, : Beacon Press, c2009 |
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ISBN |
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Descrizione fisica |
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1 online resource (272 p.) |
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Disciplina |
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Soggetti |
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Mikveh |
Jewish women - Religious life |
Purity, Ritual - Judaism |
Electronic books. |
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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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Bibliographic Level Mode of Issuance: Monograph |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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The place -- The balaniyot -- A dose of impurity -- Blood and banishment -- Purity and sexuality -- Female rituals, sisterhood, and female authority -- Between a woman and God -- Between man and wife. |
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2. |
Record Nr. |
UNINA9910464830103321 |
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Titolo |
Biochar systems for smallholders in developing countries : leveraging current knowledge and exploring future potential for climate-smart agriculture / / Sebastian M. Scholz [and five others] |
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Pubbl/distr/stampa |
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Washington, District of Columbia : , : The World Bank, , 2014 |
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©2014 |
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ISBN |
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Descrizione fisica |
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1 online resource (231 p.) |
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Collana |
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Disciplina |
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Soggetti |
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Biochar |
Biomass energy |
Electronic books. |
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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 contenuto |
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Front Cover; Contents; Acknowledgments; About the Authors; Abbreviations; Executive Summary; Introduction; Background on Biochar; Overall Opportunities and Risks of Biochar Systems; Figures; Figure ES.1 Biochar as a System-Defined Concept; Survey and Typology of Biochar Systems; Life-Cycle Assessment of Existing Biochar Systems; Boxes; Box ES.1 Summary of Kenya Case Study; Box ES.2 Summary of Vietnam Case Study; Box ES.3 Summary of Senegal Case Study; Aspects of Technology Adoption; Potential Future Involvement of Development Institutions, Including the World Bank; Chapter 1Introduction |
Potential of BiocharIncreases in Research into Biochar; Content and Purpose of Study; Figure 1.1 Acceleration of Published Research on Biochar and Charcoal; Methodology; Chapter 2Background on Biochar; Characteristics and Historical Basis of Biochar; Figure 2.1 Terra Preta Soil Pit near Manaus, Brazil, Showing Thick, Dark, Carbon-Enriched Top Layer; Biochar Systems; Figure 2.2 Biochar as a System-Defined Concept; Tables; Table 2.1 Typical Product Yields (Dry Basis) for Different Types of Thermochemical Conversion Processes That Generate Carbonaceous Residues; Note |
Chapter 3Opportunities and Risks of Biochar SystemsIntroduction; Impacts on Soil Health and Agricultural Productivity; Figure 3.1 |
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Percentage Change in Crop Productivity upon Application of Biochar under Different Scenarios; Table 3.1 Possible Biochar Effects on Nitrogen Cycling; Impacts on Climate Change; Table 3.2 Direct and Indirect Sources of Biochar Emission Reductions; Figure 3.2 General Concept of the Carbon Storage Potential of Biochar Based on 1 Tonne (t) of Dry Feedstock (Slow Pyrolysis); Figure 3.3 Impact of Biochar on Climate Change Mitigation |
Figure 3.4 Alternative Scenarios for Biomass Carbon DynamicsSocial Impacts; Competing Uses of Biomass; Table 3.3 Potential Biomass Use and Limitations; Notes; Chapter 4Survey and Typology of Biochar Systems; Survey; Classification of Biochar Systems; Figure 4.1 Distribution of Project Locations; Figure 4.2 Biochar Production Technologies; Figure 4.3 Utilization of Biochar Production Energy; Figure 4.4 Word Cloud Showing Biochar Feedstocks Most Frequently Cited by Survey Respondents; Figure 4.5 Scale of Biochar Production Systems |
Figure 4.6 Typology of Biochar Systems by Type of Energy Recovery and Scale Showing Number of Projects with Each Type of Feedstock (n = 154)Figure 4.7 Summary of Dominant Biochar Typologies; Table 4.1 Biochar System Typology; Chapter 5Life-Cycle Assessment of Existing Biochar Systems; Life-Cycle Assessment: Definition and Methodology; Box 5.1 Elements of a Life-Cycle Assessment; Case Studies; Kenya Case Study Life-Cycle Assessment; Figure 5.1 Schematic Flow Diagram for Biochar Production in a Pyrolysis Cookstove System; Figure 5.2 Pyrolysis Cookstove in Kenya Case Study |
Table 5.1 Primary and Secondary Feedstock Characteristics and Availability for Baseline Scenario |
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Sommario/riassunto |
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Biochar is the carbon-rich organic matter that remains after heating biomass under minimization of oxygen during a process called pyrolysis. Its relevance to deforestation, agricultural resilience, and energy production, particularly in developing countries, makes it an important issue. This report offers a review of what is known about opportunities and risks of biochar systems. Its aim is to provide a state of the art overview of current knowledge regarding biochar science. In that sense the report also offers a reconciling view on different scientific opinions about biochar providing an ove |
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