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Report investigates programmes and sites in developing and transitional countries which were regarded by international authorities as "high coverage sites" i.e. where more than 50% of injecting drug users had been reached by one or more HIV prevention programmes. Each case study includes a description of the development of the programme and features of the services provided, an estimation of programme coverage, factors that led to high coverage, and a discussion of ways to maintain and expand coverage.
Book Synopsis High Coverage Sites by : Dave Burrows
Download or read book High Coverage Sites written by Dave Burrows and published by World Health Organization. This book was released on 2006 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report investigates programmes and sites in developing and transitional countries which were regarded by international authorities as "high coverage sites" i.e. where more than 50% of injecting drug users had been reached by one or more HIV prevention programmes. Each case study includes a description of the development of the programme and features of the services provided, an estimation of programme coverage, factors that led to high coverage, and a discussion of ways to maintain and expand coverage.
The gradual emergence during the last decade of the study of the mechanism of electrode reactions from the dark ages has given stimulus to a consideration of the double layer at metal-solution interfaces, which extends far outside the classical experimental studies of the capacitance of the mercury solution interface made during the 1950's by D. C. Grahame at Amherst College, Massachusetts. The central aspect of the study of an electrode reaction is the elucidation of its path and rate-determining step. Two fields are, however, prerequisites for such studies. First, it must be known what species are in the bulk of the solution, for these will seldom be simple ones such as H30~ and this study ("complex ions") has been made with both extent and depth. Second, the occupancy of the surface of the electrocatalyst and the associated field gradients must be known as a function of position in the double layer. Such "maps of the double layer" can be given with reasonable certainty up to concentrations of about 1 N for mercury in contact with solutions of inorganic ions. However, this is-or was until very recently-the extent of the know ledge. The problems confronting a fundamental approach to the rational development of, e.g., fuel cell catalysis were therefore considerable.
Book Synopsis Electrosorption by : Eliezer Gileadi
Download or read book Electrosorption written by Eliezer Gileadi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The gradual emergence during the last decade of the study of the mechanism of electrode reactions from the dark ages has given stimulus to a consideration of the double layer at metal-solution interfaces, which extends far outside the classical experimental studies of the capacitance of the mercury solution interface made during the 1950's by D. C. Grahame at Amherst College, Massachusetts. The central aspect of the study of an electrode reaction is the elucidation of its path and rate-determining step. Two fields are, however, prerequisites for such studies. First, it must be known what species are in the bulk of the solution, for these will seldom be simple ones such as H30~ and this study ("complex ions") has been made with both extent and depth. Second, the occupancy of the surface of the electrocatalyst and the associated field gradients must be known as a function of position in the double layer. Such "maps of the double layer" can be given with reasonable certainty up to concentrations of about 1 N for mercury in contact with solutions of inorganic ions. However, this is-or was until very recently-the extent of the know ledge. The problems confronting a fundamental approach to the rational development of, e.g., fuel cell catalysis were therefore considerable.
Hybrid organic-inorganic materials and the rational design of their interfaces open up the access to a wide spectrum of functionalities not achievable with traditional concepts of materials science. This innovative class of materials has a major impact in many application domains such as optics, electronics, mechanics, energy storage and conversion, protective coatings, catalysis, sensing and nanomedicine. The properties of these materials do not only depend on the chemical structure, and the mutual interaction between their nano-scale building blocks, but are also strongly influenced by the interfaces they share. This handbook focuses on the most recent investigations concerning the design, control, and dynamics of hybrid organic-inorganic interfaces, covering: (i) characterization methods of interfaces, (ii) innovative computational approaches and simulation of interaction processes, (iii) in-situ studies of dynamic aspects controlling the formation of these interfaces, and (iv) the role of the interface for process optimization, devices, and applications in such areas as optics, electronics, energy and medicine.
Book Synopsis Hybrid Organic-Inorganic Interfaces by : Marie Helene Delville
Download or read book Hybrid Organic-Inorganic Interfaces written by Marie Helene Delville and published by John Wiley & Sons. This book was released on 2017-12-04 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid organic-inorganic materials and the rational design of their interfaces open up the access to a wide spectrum of functionalities not achievable with traditional concepts of materials science. This innovative class of materials has a major impact in many application domains such as optics, electronics, mechanics, energy storage and conversion, protective coatings, catalysis, sensing and nanomedicine. The properties of these materials do not only depend on the chemical structure, and the mutual interaction between their nano-scale building blocks, but are also strongly influenced by the interfaces they share. This handbook focuses on the most recent investigations concerning the design, control, and dynamics of hybrid organic-inorganic interfaces, covering: (i) characterization methods of interfaces, (ii) innovative computational approaches and simulation of interaction processes, (iii) in-situ studies of dynamic aspects controlling the formation of these interfaces, and (iv) the role of the interface for process optimization, devices, and applications in such areas as optics, electronics, energy and medicine.
Epic in scope, yet filled with detail, this illustrated guide takes readers through the whole of our human past. Spanning the dawn of human civilization through the present, it provides a tour of every site of key archaeological importance. From the prehistoric cave paintings of Lascaux to Tutankhamun's tomb, from the buried city of Pompeii to China's Terracotta Army, all of the world's most iconic sites and discoveries are here. So too are the lesser-known yet equally important finds, such as the recent discoveries of our oldest known human ancestors and of the world's oldest-known temple, Göbekli Tepe in Turkey. A masterful combination of succinct analysis and driving narrative, this book also addresses the questions that inevitably arise as we gradually learn more about the history of our species. Written by an international team of archaeological experts and richly illustrated throughout, Archaeology: The Essential Guide to Our Human Past offers an unparalleled insight into the origins of humankind.
Book Synopsis Archaeology by : Paul Bahn
Download or read book Archaeology written by Paul Bahn and published by Smithsonian Institution. This book was released on 2017-11-07 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epic in scope, yet filled with detail, this illustrated guide takes readers through the whole of our human past. Spanning the dawn of human civilization through the present, it provides a tour of every site of key archaeological importance. From the prehistoric cave paintings of Lascaux to Tutankhamun's tomb, from the buried city of Pompeii to China's Terracotta Army, all of the world's most iconic sites and discoveries are here. So too are the lesser-known yet equally important finds, such as the recent discoveries of our oldest known human ancestors and of the world's oldest-known temple, Göbekli Tepe in Turkey. A masterful combination of succinct analysis and driving narrative, this book also addresses the questions that inevitably arise as we gradually learn more about the history of our species. Written by an international team of archaeological experts and richly illustrated throughout, Archaeology: The Essential Guide to Our Human Past offers an unparalleled insight into the origins of humankind.
Volume 70 of Reviews in Mineralogy and Geochemistry represents an extensive review of the material presented by the invited speakers at a short course on Thermodynamics and Kinetics of Water-Rock Interaction held prior to the 19th annual V. M. Goldschmidt Conference in Davos, Switzerland (June 19-21, 2009). Contents: Thermodynamic Databases for Water-Rock Interaction Thermodynamics of Solid Solution-Aqueous Solution Systems Mineral Replacement Reactions Thermodynamic Concepts in Modeling Sorption at the Mineral-Water Interface Surface Complexation Modeling: Mineral Fluid Equilbria at the Molecular Scale The Link Between Mineral Dissolution/Precipitation Kinetics and Solution Chemistry Organics in Water-Rock Interactions Mineral Precipitation Kinetics Towards an Integrated Model of Weathering, Climate, and Biospheric Processes Approaches to Modeling Weathered Regolith Fluid-Rock Interaction: A Reactive Transport Approach Geochemical Modeling of Reaction Paths and Geochemical Reaction Networks
Book Synopsis Thermodynamics and Kinetics of Water-Rock Interaction by : Eric H. Oelkers
Download or read book Thermodynamics and Kinetics of Water-Rock Interaction written by Eric H. Oelkers and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 70 of Reviews in Mineralogy and Geochemistry represents an extensive review of the material presented by the invited speakers at a short course on Thermodynamics and Kinetics of Water-Rock Interaction held prior to the 19th annual V. M. Goldschmidt Conference in Davos, Switzerland (June 19-21, 2009). Contents: Thermodynamic Databases for Water-Rock Interaction Thermodynamics of Solid Solution-Aqueous Solution Systems Mineral Replacement Reactions Thermodynamic Concepts in Modeling Sorption at the Mineral-Water Interface Surface Complexation Modeling: Mineral Fluid Equilbria at the Molecular Scale The Link Between Mineral Dissolution/Precipitation Kinetics and Solution Chemistry Organics in Water-Rock Interactions Mineral Precipitation Kinetics Towards an Integrated Model of Weathering, Climate, and Biospheric Processes Approaches to Modeling Weathered Regolith Fluid-Rock Interaction: A Reactive Transport Approach Geochemical Modeling of Reaction Paths and Geochemical Reaction Networks
Covering the theory and practice of non-insecticidal control of insect vectors of human disease, this book provides an overview of methods including the use of botanical biocides and insect-derived semiochemicals, with an overall focus on integrated vector management strategies. While the mainstay of malaria control programmes relies on pesticides, there is a resurgence in the research and utilisation of non-insecticidal control measures due to concerns over rapid development and spread of insecticide resistance, and long-term environmental impacts. This book provides examples of successful applications in the field and recommendations for future use.
Book Synopsis Biological and Environmental Control of Disease Vectors by : Mary M. Cameron
Download or read book Biological and Environmental Control of Disease Vectors written by Mary M. Cameron and published by CABI. This book was released on 2013 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the theory and practice of non-insecticidal control of insect vectors of human disease, this book provides an overview of methods including the use of botanical biocides and insect-derived semiochemicals, with an overall focus on integrated vector management strategies. While the mainstay of malaria control programmes relies on pesticides, there is a resurgence in the research and utilisation of non-insecticidal control measures due to concerns over rapid development and spread of insecticide resistance, and long-term environmental impacts. This book provides examples of successful applications in the field and recommendations for future use.
Adsorption by Carbons covers the most significant aspects of adsorption by carbons, attempting to fill the existing gap between the fields of adsorption and carbonaceous materials. Both basic and applied aspects are presented. The first section of the book introduces physical adsorption and carbonaceous materials, and is followed by a section concerning the fundamentals of adsorption by carbons. This leads to development of a series of theoretical concepts that serve as an introduction to the following section in which adsorption is mainly envisaged as a tool to characterize the porous texture and surface chemistry of carbons. Particular attention is paid to some novel nanocarbons, and the electrochemistry of adsorption by carbons is also addressed. Finally, several important technological applications of gas and liquid adsorption by carbons in areas such as environmental protection and energy storage constitute the last section of the book. The first book to address the interplay between carbonaceous materials and adsorption Includes important environmental applications, such as the removal of volatile organic compounds from polluted atmospheres Covers both gas-solid and liquid-solid adsorption
Book Synopsis Adsorption by Carbons by : Eduardo J. Bottani
Download or read book Adsorption by Carbons written by Eduardo J. Bottani and published by Elsevier. This book was released on 2011-10-10 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption by Carbons covers the most significant aspects of adsorption by carbons, attempting to fill the existing gap between the fields of adsorption and carbonaceous materials. Both basic and applied aspects are presented. The first section of the book introduces physical adsorption and carbonaceous materials, and is followed by a section concerning the fundamentals of adsorption by carbons. This leads to development of a series of theoretical concepts that serve as an introduction to the following section in which adsorption is mainly envisaged as a tool to characterize the porous texture and surface chemistry of carbons. Particular attention is paid to some novel nanocarbons, and the electrochemistry of adsorption by carbons is also addressed. Finally, several important technological applications of gas and liquid adsorption by carbons in areas such as environmental protection and energy storage constitute the last section of the book. The first book to address the interplay between carbonaceous materials and adsorption Includes important environmental applications, such as the removal of volatile organic compounds from polluted atmospheres Covers both gas-solid and liquid-solid adsorption
The surface science of metal oxides is studied using a variety of experimental and theoretical techniques, allowing the geometry, electronic structure, dynamics and the behaviour of the metal oxide-metal interface to be explored. Faraday Discussions documents a long-established series of Faraday Discussion meetings which provide a unique international forum for the exchange of views and newly acquired results in developing areas of physical chemistry, biophysical chemistry and chemical physics. The papers presented are published in the Faraday Discussion volume together with a record of the discussion contributions made at the meeting. Faraday Discussions therefore provide an important record of current international knowledge and views in the field concerned.
Book Synopsis The Surface Science of Metal Oxides by :
Download or read book The Surface Science of Metal Oxides written by and published by Royal Society of Chemistry. This book was released on 2000 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: The surface science of metal oxides is studied using a variety of experimental and theoretical techniques, allowing the geometry, electronic structure, dynamics and the behaviour of the metal oxide-metal interface to be explored. Faraday Discussions documents a long-established series of Faraday Discussion meetings which provide a unique international forum for the exchange of views and newly acquired results in developing areas of physical chemistry, biophysical chemistry and chemical physics. The papers presented are published in the Faraday Discussion volume together with a record of the discussion contributions made at the meeting. Faraday Discussions therefore provide an important record of current international knowledge and views in the field concerned.
UMTS Network Planning, Optimization, and Inter-Operation with GSM is an accessible, one-stop reference to help engineers effectively reduce the time and costs involved in UMTS deployment and optimization. Rahnema includes detailed coverage from both a theoretical and practical perspective on the planning and optimization aspects of UMTS, and a number of other new techniques to help operators get the most out of their networks. Provides an end-to-end perspective, from network design to optimization Incorporates the hands-on experiences of numerous researchers Single authorship allows for strong coherency and accessibility Details the complete iteration cycle of radio link budgeting for coverage planning and dimensioning Rahnema demonstrates detailed formulation of radio capacity and coverage in UMTS, and discusses the tradeoffs involved. He presents complete link budgeting and iterative simulations for capacity and coverage planning, along with practical guidelines. UMTS Network Planning contains seventeen cohesive and well-organized chapters which cover numerous topics, including: Radio channel structures, radio channel models, parameters, model tuning Techniques for capacity and coverage enhancements Complete treatment of power control, handoffs and radio resource practical management processes and parameters Detailed coverage of TCP protocol enhancement for operation over wireless links, particularly UMTS Application of GSM measurements to plan and re-engineer for UMTS radio sites Guidelines for site co-location with GSM, the QOS classes, parameters and inter-workings in UMTS AMR voice codecs and tradeoffs, core and access network design, architectural evolution, and protocols Comprehensive discussion and presentation of practical techniques for radio performance analysis, trending, and troubleshooting Perfect for professionals in the field and researchers specializing in network enhancement. Engineers working on other air interfaces and next generation technologies will find many of the techniques introduced helpful in designing and deploying future wireless networks as well. Students and professionals new to the wireless field will also find this book to be a good foundation in network planning, performance analysis, and optimization.
Book Synopsis UMTS Network Planning, Optimization, and Inter-Operation with GSM by : Moe Rahnema
Download or read book UMTS Network Planning, Optimization, and Inter-Operation with GSM written by Moe Rahnema and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: UMTS Network Planning, Optimization, and Inter-Operation with GSM is an accessible, one-stop reference to help engineers effectively reduce the time and costs involved in UMTS deployment and optimization. Rahnema includes detailed coverage from both a theoretical and practical perspective on the planning and optimization aspects of UMTS, and a number of other new techniques to help operators get the most out of their networks. Provides an end-to-end perspective, from network design to optimization Incorporates the hands-on experiences of numerous researchers Single authorship allows for strong coherency and accessibility Details the complete iteration cycle of radio link budgeting for coverage planning and dimensioning Rahnema demonstrates detailed formulation of radio capacity and coverage in UMTS, and discusses the tradeoffs involved. He presents complete link budgeting and iterative simulations for capacity and coverage planning, along with practical guidelines. UMTS Network Planning contains seventeen cohesive and well-organized chapters which cover numerous topics, including: Radio channel structures, radio channel models, parameters, model tuning Techniques for capacity and coverage enhancements Complete treatment of power control, handoffs and radio resource practical management processes and parameters Detailed coverage of TCP protocol enhancement for operation over wireless links, particularly UMTS Application of GSM measurements to plan and re-engineer for UMTS radio sites Guidelines for site co-location with GSM, the QOS classes, parameters and inter-workings in UMTS AMR voice codecs and tradeoffs, core and access network design, architectural evolution, and protocols Comprehensive discussion and presentation of practical techniques for radio performance analysis, trending, and troubleshooting Perfect for professionals in the field and researchers specializing in network enhancement. Engineers working on other air interfaces and next generation technologies will find many of the techniques introduced helpful in designing and deploying future wireless networks as well. Students and professionals new to the wireless field will also find this book to be a good foundation in network planning, performance analysis, and optimization.
Finding reputable sources can be tricky when researching controversial topics, particularly when using the World Wide Web. This invaluable sourcebook helps you sift through the mountains of information in cyberspace and take full advantage of all the Web has to offer. Valuable instruction on researching hot topics, as well as techniques for evaluating Web information sources, is provided through 40 Issue Briefs. Each brief includes background on the topic, an outline of key controversies, suggested search terms for use in search engines and other databases, and lists of relevant websites divided into five categories—reference, law/legislation, news, data, and advocacy. Appendices of think-tank and opinion magazine sites provide additional sources for extending research. Students can browse the Issue Briefs to find interesting research topics and use the sites listed in the guide to locate information for projects. Instructors teaching research skills, critical thinking, and source evaluation can use IssueWeb to direct their students to high quality information sources on the Web. Additionally, librarians working in school, public, and college libraries can use it as a reference source to assist their clientele. This tremendously useful sourcebook will prove valuable to high school students, undergraduates, instructors, and the librarians who serve them.
Book Synopsis IssueWeb by : Karen R. Diaz
Download or read book IssueWeb written by Karen R. Diaz and published by Bloomsbury Publishing USA. This book was released on 2004-03-30 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finding reputable sources can be tricky when researching controversial topics, particularly when using the World Wide Web. This invaluable sourcebook helps you sift through the mountains of information in cyberspace and take full advantage of all the Web has to offer. Valuable instruction on researching hot topics, as well as techniques for evaluating Web information sources, is provided through 40 Issue Briefs. Each brief includes background on the topic, an outline of key controversies, suggested search terms for use in search engines and other databases, and lists of relevant websites divided into five categories—reference, law/legislation, news, data, and advocacy. Appendices of think-tank and opinion magazine sites provide additional sources for extending research. Students can browse the Issue Briefs to find interesting research topics and use the sites listed in the guide to locate information for projects. Instructors teaching research skills, critical thinking, and source evaluation can use IssueWeb to direct their students to high quality information sources on the Web. Additionally, librarians working in school, public, and college libraries can use it as a reference source to assist their clientele. This tremendously useful sourcebook will prove valuable to high school students, undergraduates, instructors, and the librarians who serve them.
