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Nonpoint source water pollution control: incent...
59,00 € *
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The purpose of this study was to design a regulatory policy to solve a nonpoint source (NPS) water pollution problem. Cost-sharing programs of various kinds have dominated NPS policy since the 1980 s. However, such programs are neither efficient nor effective. Economists agree that, in principle, performance-based approaches are preferred to design- based, because they allow firms to choose least-cost abatement practices. However, nonpoint sources are seldom included in performance-based programs since it is very costly to monitor the performance of individual NPS polluters. The NPS pollution problem can be modeled as a generalized principal-agents problem. That is, the principal has to regulate agents while he cannot observe either the types and or the effort level of the agents, only total level of ambient pollution is verifiable. I show that under assumptions consistent with the NPS pollution situation it is possible to decompose the generalized principal-agent problem into two univariate variational problems in the multi-agents case, and to design a two-step contract that solves both the adverse selection and the hidden action problems.

Anbieter: Dodax
Stand: 19.02.2020
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New Perspectives of Cryptographic Key Management
79,00 € *
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New perspectives of cryptographic key management are introduced, considering a broader and innovative definition for cryptographic keys. The book includes coverage on key storage optimization, privacy-preserving secret sharing, distributed key management, conditional infromation release, and conditionally verifiable signature schemes. New security notions are introduced, with rigorous analysis of novel protocols.

Anbieter: Dodax
Stand: 19.02.2020
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Verifiable Secret Sharing
29,00 € *
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High Quality Content by WIKIPEDIA articles! In cryptography, a secret sharing scheme is verifiable if auxiliary information is included that allows players to verify their shares as consistent. More formally, verifiable secret sharing ensures that even if the dealer is malicious there is a well-defined secret that the players can later reconstruct. (In standard secret sharing, the dealer is assumed to be honest.) The concept of verifiable secret sharing (VSS) was first introduced in 1985 by Benny Chor, Shafi Goldwasser, Silvio Micali and Baruch Awerbuch. In a VSS protocol a distinguished player who wants to share the secret is referred to as the dealer. The protocol consists of two phases: a sharing phase and a reconstruction phase. Sharing: Initially the dealer holds secret as input and each player holds an independent random input. The sharing phase may consist of several rounds. At each round each player can privately send messages to other players and it can also broadcast a message. Each message sent or broadcast by a player is determined by its input, its random input and messages received from other players in previous rounds.

Anbieter: Dodax
Stand: 19.02.2020
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Behaviour of Teleost Fishes
422,00 CHF *
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This book is about the behaviour of teleosts, a well-defined, highly successful taxonomic group of vertebrate animals sharing a common body plan and forming the vast majority of living bony fishes. There are over 22000 living species of teleosts, including nearly all the fish of importance in commercial fisheries and aquaculture. Teleosts are represented in just about every conceivable aquatic environment from temporary desert pools to the deep ocean, from soda lakes to sub-zero Antarctic waters. Behaviour forms the primary interface between these effective survival machines and their environ ment; behavioural plasticity is the key to the success of the teleost fishes. In the decade before the publication of the first edition of this book (1986) the study of animal behaviour underwent revolutionary changes under the dual impact of the new fields of behavioural ecology and sociobiology. Quantitative, experimentally-verifiable hypotheses about why individual animals behave were formulated for the first time and met with considerable success. Much of the early work in these new fields concentrated on birds and mammals, but material presented in the first edition of this book helped to demonstrate that fish behaviour is not just a simplified version of that seen in birds and mammals. but obeys the same ecological and evolutionary rules. In the five years since the first edition. much of the early theory has matured: optimal solutions to the problems of feeding and mating require subtle trade-offs of energy balance.

Anbieter: Orell Fuessli CH
Stand: 19.02.2020
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Behaviour of Teleost Fishes
247,99 € *
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This book is about the behaviour of teleosts, a well-defined, highly successful taxonomic group of vertebrate animals sharing a common body plan and forming the vast majority of living bony fishes. There are over 22000 living species of teleosts, including nearly all the fish of importance in commercial fisheries and aquaculture. Teleosts are represented in just about every conceivable aquatic environment from temporary desert pools to the deep ocean, from soda lakes to sub-zero Antarctic waters. Behaviour forms the primary interface between these effective survival machines and their environ ment; behavioural plasticity is the key to the success of the teleost fishes. In the decade before the publication of the first edition of this book (1986) the study of animal behaviour underwent revolutionary changes under the dual impact of the new fields of behavioural ecology and sociobiology. Quantitative, experimentally-verifiable hypotheses about why individual animals behave were formulated for the first time and met with considerable success. Much of the early work in these new fields concentrated on birds and mammals, but material presented in the first edition of this book helped to demonstrate that fish behaviour is not just a simplified version of that seen in birds and mammals. but obeys the same ecological and evolutionary rules. In the five years since the first edition. much of the early theory has matured: optimal solutions to the problems of feeding and mating require subtle trade-offs of energy balance.

Anbieter: Thalia AT
Stand: 19.02.2020
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