springer netherlands sep 2017 (7 risultati)

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book provides an introduction to age-structured population modeling which emphasizes the connection between mathematical theory and underlying biological assumptions.Through the rigorous development of the linear theory and the nonlinear theory alongside numerics, the authors explore classical equations that describe the dynamics of certain ecological systems. Modeling aspects are discussed to show how relevant problems in the fields of demography, ecology and epidemiology can be formulated and treated within the theory. In particular, the book presents extensions of age-structured modeling to the spread of diseases and epidemics while also addressing the issue of regularity of solutions, the asymptotic behavior of solutions, and numerical approximation. With sections on transmission models, non-autonomous models and global dynamics, this book fills a gap in the literature on theoretical population dynamics.The Basic Approach toAge-Structured Population Dynamics will appeal to graduate students and researchers in mathematical biology, epidemiology and demography who are interested in the systematic presentation of relevant models and mathematical methods. 364 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book describes the creation of a monitoring network, which can provide information about the exact locations and the environmental threats posed by chemical weapons (CW) dumpsites in the Baltic Sea region, using autonomous underwater vehicles (AUVs) and remotely operated underwater vehicles (ROVs), and utilising the existing research vessels of NATO partner institutions as launching platforms. The dumping operations occurred shortly after World War II and included captured German munitions. Operations with munitions from the Soviet occupation zone were performed by the Soviet Navy, operations with munitions from British and American occupation zones were performed in areas outside of the Baltic Sea (Skagerrak Strait); the fate of munitions from the French occupation zone was never reported. Due to difficult legal status of these munitions, and high costs of remediation and retrieval, removal of these weapons from the bottom of the Baltic Sea seems unlikely in the foreseeable future. These dumped chemical weapons pose an actual environmental and security hazard in the Baltic Sea Region. Nowadays, with more and more industrial activities being performed in the Baltic Sea Area, the threat level is rising. The AUV survey is based on the IVER2 platform by OceanServer, equipped with Klein 3500 side-scan sonar. The identification phase utilises several ROVs, equipped with targeting sonars, acoustic cameras capable of penetrating turbid bottom waters up to 20m, and visual HD cameras. A novel sediment sampling system, based on a camera and sonar equipped cassette sampler, has been developed to obtain surface sediments. The test phase described consists of a survey phase, which will locate the actual objects concerned, and a monitoring phase, which will concentrate on the collection of environmental data close to the objects concerned. 260 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book describes the creation of a monitoring network, which can provide information about the exact locations and the environmental threats posed by chemical weapons (CW) dumpsites in the Baltic Sea region, using autonomous underwater vehicles (AUVs) and remotely operated underwater vehicles (ROVs), and utilising the existing research vessels of NATO partner institutions as launching platforms. The dumping operations occurred shortly after World War II and included captured German munitions. Operations with munitions from the Soviet occupation zone were performed by the Soviet Navy, operations with munitions from British and American occupation zones were performed in areas outside of the Baltic Sea (Skagerrak Strait); the fate of munitions from the French occupation zone was never reported. Due to difficult legal status of these munitions, and high costs of remediation and retrieval, removal of these weapons from the bottom of the Baltic Sea seems unlikely in the foreseeable future. These dumped chemical weapons pose an actual environmental and security hazard in the Baltic Sea Region. Nowadays, with more and more industrial activities being performed in the Baltic Sea Area, the threat level is rising. The AUV survey is based on the IVER2 platform by OceanServer, equipped with Klein 3500 side-scan sonar. The identification phase utilises several ROVs, equipped with targeting sonars, acoustic cameras capable of penetrating turbid bottom waters up to 20m, and visual HD cameras. A novel sediment sampling system, based on a camera and sonar equipped cassette sampler, has been developed to obtain surface sediments. The test phase described consists of a survey phase, which will locate the actual objects concerned, and a monitoring phase, which will concentrate on the collection of environmental data close to the objects concerned. 260 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This work is intended to jointly address the development, realization and applications of emitters and detectors of terahertz (THz-0.3 THz up to 10 THz) and their application to diagnostics of CBRN effects and detection of explosives and CBRN. Hazardous substances typically exhibit rotational and vibrational transitions in this region, hence giving access to spectroscopic analysis of a large variety of molecules which play a key role in security as well as various other areas, e.g. air pollution, climate research, industrial process control, agriculture, food industry, workplace safety and medical diagnostics can be monitored by sensing and identifying them via THz (0.3 to 10 THz) and mid infrared (MIR-10 THz to 100 THz) absorption 'finger prints'. Most plastics, textiles and paper are nearly transparent for THz radiation. 208 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume in the series is devoted to Africa, a continent that possesses a vast treasure of medicinal plants and has produced some exclusive materials for the world market. This volume is expected to strengthen the medicinal plant sector in African countries by making comprehensive information on medicinal and aromatic plants available to policy-makers and entrepreneurs. It can be used to frame effective policies and create an environment conducive to the growth of the plant-based medicine industry, bringing economic benefit to African nations. It will help health organizations to improve the health of their people by using their own resources and a less expensive system of medicine, which is accepted by African society. It could also lead scientific communities to increase R&D activities in the field. 420 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book offers a broad overview of the concepts and research findings in immunometabolism. The immune system is made up of numerous different cell types, pathways, and components that must be able to respond rapidly to a pathogen or cancer, but must also remain quiescent in the absence of challenges. Immune cells rely on metabolic pathways to adapt to changing environments and stimuli. Additionally, these cells can be modified in function or fate by fluctuations in available nutrients.The chapters in this book describe ways in which immune cells utilize and are regulated by metabolic pathways. Topics include how immune-cell metabolism shapes immune homeostasis, and how dysregulation of these pathways can lead to immune disorders. In different contexts, such as a tumor microenvironment, immune-cell function and identity may be modified not only by cytokines and checkpoint molecules, but also by nutrient availability and other metabolic stimuli. Transcriptional reprogramming confers many of the changes in immune cell metabolism that are seen when a T-cell, for example, undergoes activation or functional adaptation to different environments. Lastly, immune cells can destructively or protectively participate in human metabolic homeostasis or disorders.This book summarizes immune-metabolism from a variety of different perspectives, including the ways in which metabolic cues, pathways, and requirements of immune cells change in conditions of homeostasis and activation. The exploration of the significance of metabolic checkpoints and other cues, particularly in the context of cancer and immune disorders, may form the foundation for the development of therapeutics. 232 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This is the proceedings of the 4th International Conference on Strain-Hardening Cement-Based Composites (SHCC4), that was held at the Technische Universität Dresden, Germany from 18 to 20 September 2017. The conference focused on advanced fiber-reinforced concrete materials such as strain-hardening cement-based composites (SHCC), textile-reinforced concrete (TRC) and high-performance fiber-reinforced cement-based composites (HPFRCC). All these new materials exhibit pseudo-ductile behavior resulting from the formation of multiple, fine cracks when subject to tensile loading. The use of such types of fiber-reinforced concrete could revolutionize the planning, development, dimensioning, structural and architectural design, construction of new and strengthening and repair of existing buildings and structures in many areas of application. The SHCC4 Conference was the follow-up of three previous successful international events in Stellenbosch, South Africa in 2009, Rio de Janeiro, Brazil in 2011, and Dordrecht, The Netherlands in 2014. 820 pp. Englisch.