Currently, few drugs are available for the effective treatment of neurodegenerative diseases and neurodevelopmental disorders. Recent advances in neuroscience research offer hope that future strategies for treating these brain disorders will include neurogenesis and neuroenhancement as therapeutic endpoints. This volume reviews cutting-edge findings related to the pharmacological aspects of neurogenesis and neuroprotection. A broad range of topics are covered from basic lab bench research to drug discovery efforts and important clinical issues. This collection of reviews is a perfect way to become acquainted with these exciting new fields in the space of a single volume. Chapters are written with a general audience in mind, but with enough high-level discussion to appeal to specialists and experts as well. The authors have done an excellent job of challenging current paradigms and pushing the boundaries of exploration in keeping with the pioneering spirit that gave rise to these emerging areas of research. Consequently, this will be an indispensable resource for many years to come.
* Provides state-of-the-art reviews spanning significant emerging fields
* Discusses future directions and questions for future studies
* Includes informative illustrations
*

This handbook is volume III in a series devoted to stationary partial differential quations. Similarly as volumes I and II, it is a collection of self contained state-of-the-art surveys written by well known experts in the field. The topics covered by this handbook include singular and higher order equations, problems near critically, problems with anisotropic nonlinearities, dam problem, T-convergence and Schauder-type estimates. These surveys will be useful for both beginners and experts and speed up the progress of corresponding (rapidly developing and fascinating) areas of mathematics.

Key features:

- Written by well-known experts in the field
- Self-contained volume in series covering one of the most rapid developing topics in mathematics
- Written by well-known experts in the field
- Self-contained volume in series covering one of the most rapid developing topics in mathematics

This book is a result of many years of author's research and teaching on random vibration and control. It was used as lecture notes for a graduate course. It provides a systematic review of theory of probability, stochastic processes, and stochastic calculus. The feedback control is also reviewed in the book. Random vibration analyses of SDOF, MDOF and continuous structural systems are presented in a pedagogical order. The application of the random vibration theory to reliability and fatigue analysis is also discussed. Recent research results on fatigue analysis of non-Gaussian stress processes are also presented. Classical feedback control, active damping, covariance control, optimal control, sliding control of stochastic systems, feedback control of stochastic time-delayed systems, and probability density tracking control are studied. Many control results are new in the literature and included in this book for the first time. The book serves as a reference to the engineers who design and maintain structures subject to harsh random excitations including earthquakes, sea waves, wind gusts, and aerodynamic forces, and would like to reduce the damages of structural systems due to random excitations.
- Comprehensive review of probability theory, and stochastic processes
- Random vibrations
- Structural reliability and fatigue, Non-Gaussian fatigue
- Monte Carlo methods
- Stochastic calculus and engineering applications
- Stochastic feedback controls and optimal controls
- Stochastic sliding mode controls
- Feedback control of stochastic time-delayed systems
- Probability density tracking control

Six Sigma is a management program that provides tools that help manufacturers obtain efficient, stream-lined production to coincide with ultimate high quality products. Lean Six Sigma will show how the well-regarded analytical tools of Six Sigma quality control can be successfully brought into the well-established models of "lean manufacturing," bringing efficient, stream-lined production and high quality product readily together. This book offers a thorough, yet concise introduction to the essential mathematics of Six Sigma, with solid case examples from a variety of industrial settings, culminating in an extended case study.
Various professionals will find this book immensely useful, whether it be the industrial engineer, the industrial manager, or anyone associated with engineering in a technical or managing role. It will bring about a clear understanding of not only how to implement Six Sigma statistical tools, but also how to do so within the bounds of Lean manufacturing scheme. It will show how Lean Six Sigma can help reinforce the notion of "less is more," while at the same time preserving minimal error rates in final manufactured products.
*Reviews the essential statistical tools upon which Six Sigma rests, including normal distribution and mean deviation and the derivation of 1 sigma through six sigma
*Explains essential lean tools like Value-Stream Mapping and quality improvement tools like Kaizen techniques within the context of Lean Six Sigma practice
*Extended case study to clearly demonstrate how Six Sigma and Lean principles have been actually implemented, reducing production times and costs and creating improved product quality

This book presents 13 reviews collected to present the new advances in all areas of addiction research, including knowledge gained from mapping the human genome, the improved understanding of brain pathways and functions that are stimulated by addictive drugs, experimental and clinical psychology approaches to addiction and treatment, as well as both ethical considerations and social policy. The book also includes chapters on the history of addictive substances and some personal narratives of addiction. Introduced by Sir David King, Science Advisory to the UK Government and head of the Office of Science and Technology, and Nora Volkow, director of the National Institute on Drug Abuse in the USA, the book uniquely covers the full range of disciplines which can provide insight into the future of addiction, from genetics to the humanities. Written for a scientific audience, it is also applicable to non-specialists as well.
* Provides an unique overview of what we know about addiction, and how scientific knowledge can and should be applied in the societal, ethical, and political context
* Applies the state-of-the-art research in fields such as Genomics, Neuroscience, Pharmacology, Social Policy and Ethics to addiction research
* Includes a preface by Sir David King, Science Advisory to the UK Government and head of the Office of Science and Technology, and in introduction by Nora Volkow, director of the National Institute on Drug Abuse in the USA

With Psycholinguistics in its fifth decade of existence, the second edition of the Handbook of Psycholinguistics represents a comprehensive survey of psycholinguistic theory, research and methodology, with special emphasis on the very best empirical research conducted in the past decade. Thirty leading experts have been brought together to present the reader with both broad and detailed current issues in Language Production, Comprehension and Development.

The handbook is an indispensible single-source guide for professional researchers, graduate students, advanced undergraduates, university and college teachers, and other professionals in the fields of psycholinguistics, language comprehension, reading, neuropsychology of language, linguistics, language development, and computational modeling of language. It will also be a general reference for those in neighboring fields such as cognitive and developmental psychology and education.
*Provides a complete account of psycholinguistic theory, research, and methodology
*30 of the field's foremost experts have contributed to this edition
*An invaluable single-source reference

The book presents the recent achievements on bifurcation studies of nonlinear dynamical systems. The contributing authors of the book are all distinguished researchers in this interesting subject area. The first two chapters deal with the fundamental theoretical issues of bifurcation analysis in smooth and non-smooth dynamical systems. The cell mapping methods are presented for global bifurcations in stochastic and deterministic, nonlinear dynamical systems in the third chapter. The fourth chapter studies bifurcations and chaos in time-varying, parametrically excited nonlinear dynamical systems. The fifth chapter presents bifurcation analyses of modal interactions in distributed, nonlinear, dynamical systems of circular thin von Karman plates. The theories, methods and results presented in this book are of great interest to scientists and engineers in a wide range of disciplines. This book can be adopted as references for mathematicians, scientists, engineers and graduate students conducting research in nonlinear dynamical systems.
- New Views for Difficult Problems
- Novel Ideas and Concepts
- Hilbert's 16th Problem
- Normal Forms in Polynomial Hamiltonian Systems
- Grazing Flow in Non-smooth Dynamical Systems
- Stochastic and Fuzzy Nonlinear Dynamical Systems
- Fuzzy Bifurcation
- Parametrical, Nonlinear Systems
- Mode Interactions in nonlinear dynamical systems

Advances in Imaging and Electron Physics/B> merges two long-running serials-Advances in Electronics and Electron Physics and Advances in Optical and Electron Microscopy. This series features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science and digital image processing, electromagnetic wave propagation, electron microscopy, and the computing methods used in all these domains.

The IP Multimedia Subsystem (IMS) is the foundation architecture for the next generation of mobile phones, wireless-enabled PDAs, PCs, and so on, delivering multimedia content (audio, video, text, etc.) over all types of networks. It is essential for network engineers/administrators and telecommunications engineers to not only understand IMS architecture but to also be able to apply it at every stage of the network design process. This book will contain pragmatic information on how to engineer IMS networks as well as an applications oriented approach, for engineering and networking professionals who are responsible for making IMS "play" in the real world.
* Describes the convergence of wireless IMS (IP Multimedia Subsystem) with other networks, including wireline and cable
* Discusses building interfaces for end users and IMS applications servers
* Explores network management issues with IMS

Bacon and Osetsky present an atomistic model of dislocation-particle interactions in metal systems, including irradiated materials. This work is important in simulating actual behavior, removing earlier reliance on assumed mechanisms for dislocation motion. New mechanisms for dislocation generation under shock loading are presented by Meyers et al. These models provide a basis for understanding the constitutive behavior of shocked material. Saada and Dirras provide a new perspective on the Hall-Petch relation, with particular emphasis on nanocrystals. Of particular significance, deviations from the traditional stress proportional to the square-root of grain size relation are explained. Robertson et al consider a number of effects of hydrogen on plastic flow and provide a model that provides an explanation of the broad range of properties. .
Flow stress of metal systems with particle hardening, including radiation effects
New model for dislocation kinetics under shock loading
Explanation of effects of nanoscale grain size on strength
Mechanism of hydrogen embrittlement in metal alloys

This book is devoted to the surgical treatment of epilepsy and its consequences, and provides an extraordinary perspective on the fascinating question of the relationship between brain and mind. Contrary to the current emphasis on statistics and objectivity, this book is dedicated to understanding the whole person, the life and experiences of the individual. It reports on cutting-edge technical skills provided with a human touch. This book reflects the understanding that the temporolimbic seizure originates in tissue providing the substrate for the emotional life and memory. Finally, it emphasizes the value of clinical research - here, conducted in the course of the diagnosis and surgical treatment of epilepsy - in helping to elucidate the relationship between brain and mind.

The rhizosphere in soil environments refers to the narrow zone of soil influenced by the root and exudates. Microbial populations in the rhizosphere can be 10 - 100 times larger than the populations in the bulk soil. Therefore, the rhizosphere is bathed in root exudates and microbial metabolites and the chemistry and biology at the soil-root interface is governed by biotic (plant roots, microbes) and abiotic (physical and chemical) interactions.

The research on biotic and abiotic interactions in the rhizosphere should, thus, be an issue of intense interest for years to come. This book, which consists of 15 chapters, addresses a variety of issues on fundamentals of microscopic levels and the impact on food chain contamination and the terrestrial ecosystem.

It is an essential reference work for chemists and biologists studying environmental systems, as well as earth, soil and environmental scientists.
* 15 chapter book, which addresses a variety of issues on fundamentals of microscopic levels and the impact on food chain contamination and the terrestrial ecosystem

Advances in Imaging and Electron Physics merges two long-running serials-Advances in Electronics and Electron Physics and Advances in Optical and Electron Microscopy. This series features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science and digital image processing, electromagnetic wave propagation, electron microscopy, and the computing methods used in all these domains.

The Handbooks in Economics series continues to provide the various branches of economics with handbooks which are definitive reference sources, suitable for use by professional researchers, advanced graduate students, or by those seeking a teaching supplement.
With contributions from leading researchers, each Handbook presents an accurate, self-contained survey of the current state of the topic under examination. These surveys summarize the most recent discussions in journals, and elucidate new developments.
Although original material is also included, the main aim of this series is the provision of comprehensive and accessible surveys
*Every volume contains contributions from leading researchers
*Each Handbook presents an accurate, self-contained survey of a particular topic
*The series provides comprehensive and accessible surveys

The material collected in this volume reflects the active present of this area of mathematics, ranging from the abstract theory of gradient flows to stochastic representations of non-linear parabolic PDE's.
Articles will highlight the present as well as expected future directions of development of the field with particular emphasis on applications.
The article by Ambrosio and Savare discusses
the most recent development in the theory of gradient flow of probability measures. After an introduction reviewing the properties of the Wasserstein space and corresponding subdifferential calculus, applications are given to evolutionary
partial differential equations. The contribution of Herrero provides a description of some mathematical approaches developed to account for quantitative as well as qualitative aspects of chemotaxis. Particular attention is paid to the limits of cell's
capability to measure external cues on the one hand, and to provide an overall description of aggregation models for the slim mold " Dictyostelium discoideum" on the other.
The chapter written by Masmoudi deals with a rather different topic - examples of singular limits in hydrodynamics. This is nowadays a well-studied issue given the amount of new results based on the development of the existence theory for rather general systems of equations in hydrodynamics. The paper by DeLellis addreses the most recent results for the transport equations with regard to possible applications in the theory of hyperbolic systems of conservation laws. Emphasis is put on the development of the theory in the case when the governing field is only a BV function.
The chapter by Rein represents a comprehensive survey of results on the Poisson-Vlasov system in astrophysics. The question of global stability of steady states is addressed in detail. The contribution of Soner is devoted to different representations of non-linear parabolic equations in terms of Markov processes. After a brief introduction on the linear theory, a class of
non-linear equations is investigated, with applications to stochastic control and differential games.
The chapter written by Zuazua presents some of the recent progresses done on the problem of controllabilty of partial differential equations. The applications include the linear wave and heat equations, parabolic equations with coefficients of low regularity, and some fluid-structure interaction models.
- Volume 1 focuses on the abstract theory of evolution
- Volume 2 considers more concrete probelms relating to specific applications
- Volume 3 reflects the active present of this area of mathematics, ranging from the abstract theory of gradient flows to stochastic representations of non-linear PDEs"

This book contains selected papers from the First International Conference on the Ontology of Spacetime. Its fourteen chapters address two main questions: first, what is the current status of the substantivalism/relationalism debate, and second, what about the prospects of presentism and becoming within present-day physics and its philosophy? The overall tenor of the four chapters of the book's first part is that the prospects of spacetime substantivalism are bleak, although different possible positions remain with respect to the ontological status of spacetime. Part II and Part III of the book are devoted to presentism, eternalism, and becoming, from two different perspectives. In the six chapters of Part II it is argued, in different ways, that relativity theory does not have essential consequences for these issues. It certainly is true that the structure of time is different, according to relativity theory, from the one in classical theory. But that does not mean that a decision is forced between presentism and eternalism, or that becoming has proved to be an impossible concept. It may even be asked whether presentism and eternalism really offer different ontological perspectives at all. The writers of the last four chapters, in Part III, disagree. They argue that relativity theory is incompatible with becoming and presentism. Several of them come up with proposals to go beyond relativity, in order to restore the prospects of presentism.
- Space and time in present-day physics and philosophy
- Introduction from scratch of the debates surrounding time
- Broad spectrum of approaches, coherently represented

This book comes out of need and urgency (expressed especially in areas of Information Retrieval with respect to Image, Audio, Internet and Biology) to have a working tool to compare data.
The book will provide powerful resource for all researchers using Mathematics as well as for mathematicians themselves. In the time when over-specialization and terminology fences isolate researchers, this Dictionary try to be "centripedal" and "oikoumeni," providing some access and altitude of vision but without taking the route of scientific vulgarisation. This attempted balance is the main philosophy of this Dictionary which defined its structure and style.
Key features:
- Unicity: it is the first book treating the basic notion of Distance in whole generality.
- Interdisciplinarity: this Dictionary is larger in scope than majority of thematic dictionaries.
- Encyclopedicity: while an Encyclopedia of Distances seems now too difficult to produce, this book (by its scope, short introductions and organization) provides the main material for it and for future tutorials on some parts of this material.
- Applicability: the distances, as well as distance-related notions and paradigms, are provided in ready-to-use fashion.
- Worthiness: the need and urgency for such dictionary was great in several huge areas, esp. Information Retrieval, Image Analysis, Speech Recognition and Biology.
- Accessibility: the definitions are easy to locate by subject or, in Index, by alphabetic order; the introductions and definitions are reader-friendly and maximally independent one from another; still the text is structured, in the 3D HTML style, by hyperlink-like boldfaced references to similar definitions.
* Covers a large range of subjects in pure and applied mathematics
* Designed to be easily applied--the distances and distance-related notions and paradigms are ready to use
* Helps users quickly locate definitions by subject or in alphabetical order; stand-alone entries include references to other entries and sources for further investigation

This book is devoted to an important branch of the dynamical systems theory: the study of the fine (fractal) structure of Poincare recurrences -instants of time when the system almost repeats its initial state. The authors were able to write an entirely self-contained text including many insights and examples, as well as providing complete details of proofs. The only prerequisites are a basic knowledge of analysis and topology. Thus this book can serve as a graduate text or self-study guide for courses in applied mathematics or nonlinear dynamics (in the natural sciences). Moreover, the book can be used by specialists in applied nonlinear dynamics following the way in the book. The authors applied the mathematical theory developed in the book to two important problems: distribution of Poincare recurrences for nonpurely chaotic Hamiltonian systems and indication of synchronization regimes in coupled chaotic individual systems.

* Portions of the book were published in an article that won the title "month's new hot paper in the field of Mathematics" in May 2004
* Rigorous mathematical theory is combined with important physical applications
* Presents rules for immediate action to study mathematical models of real systems
* Contains standard theorems of dynamical systems theory

Optical technology is essential to communications and medical technology. K.K. Sharma has written a comprehensive volume on optics. Beginning with introductory ideas and equations, Sharma takes the reader through the world of optics detailing problems encountered, advanced subjects, and actual applications. Elegantly written, this book rigorously examines optics with over 300 illustrations and several problems in each chapter. The book begins with light propagation in anisotropic media considered much later in most books. Sharma has started with this because it provides a more general and beautiful example of light propagation.
Nearly one third of the book deals with applications of optics. This simple idea of merging the sometimes overwhelming and dry subject of optics with real world applications will create better future engineers. It will make 'optics' jump off the page for readers and they will see it take shape in the world around them. In presenting optics practically, as well as theoretically, readers will come away not only with a complete knowledge base but a context in which to place it.
FOR INSTRUCTORS: To obtain access to the solutions manual for this title simply register on our textbook website (textbooks.elsevier.com)and request access to the Electronics and Electrical Engineering subject area. Once approved (usually within one business day) you will be able to access all of the instructor-only materials through the "Instructor Manual" link on this book's academic web page at textbooks.elsevier.com.
*Strong emphasis on applications to demonstrate the relevance of the theory
*Includes chapter on problem solving of ray deviations, focusing errors, anddistortion
*Problems are included at the end of each chapter for thorough understanding of this dense subject matter

Volcanic seismology represents the main, and often the only, tool to forecast volcanic eruptions and to monitor the eruption process. This book describes the main types of seismic signals at volcanoes, their nature and spatial and temporal distributions at different stages of eruptive activity. Following from the success of the first edition, published in 2003, the second edition consists of 19 chapters including significant revision and five new chapters. Organized into four sections, the book begins with an introduction to the history and topic of volcanic seismology, discussing the theoretical and experimental models that were developed for the study of the origin of volcanic earthquakes. The second section is devoted to the study of volcano-tectonic earthquakes, giving the theoretical basis for their occurrence and swarms as well as case stories of volcano-tectonic activity associated with the eruptions at basaltic, andesitic, and dacitic volcanoes. There were 40 cases of volcanic eruptions at 20 volcanoes that occurred all over the world from 1910 to 2005, which are discussed. General regularities of volcano-tectonic earthquake swarms, their participation in the eruptive process, their source properties, and the hazard of strong volcano-tectonic earthquakes are also described. The third section describes the theoretical basis for the occurrence of eruption earthquakes together with the description of volcanic tremor, the seismic signals associated with pyroclastic flows, rockfalls and lahars, and volcanic explosions, long-period and very-long-period seismic signals at volcanoes, micro-earthquake swarms, and acoustic events. The final section discuss the mitigation of volcanic hazard and include the methodology of seismic monitoring of volcanic activity, the examples of forecasting of volcanic eruptions by seismic methods, and the description of seismic activity in the regions of dormant volcanoes.

This book will be essential for students and practitioners of volcanic seismology to understand the essential elements of volcanic eruptions.
Provides a comprehensive overview of seismic signals at different stages of volcano eruption.Discusses dozens of case histories from around the world to provide real-world applications.Illustrations accompany detailed descriptions of volcano eruptions alongside the theories involved.

Customizable processors have been described as the next natural step in the evolution of the microprocessor business: a step in the life of a new technology where top performance alone is no longer sufficient to guarantee market success. Other factors become fundamental, such as time to market, convenience, energy efficiency, and ease of customization.
This book is the first to explore comprehensively one of the most fundamental trends which emerged in the last decade: to treat processors not as rigid, fixed entities, which designers include "as is" in their products; but rather, to build sound methodologies to tailor-fit processors to the specific needs of such products. This book addresses the goal of maintaining a very large family of processors, with a wide range of features, at a cost comparable to that of maintaining a single processor.
- First book to present comprehensively the major ASIP design methodologies and tools without any particular bias.
- Written by most of the pioneers and top international experts of this young domain.
- Unique mix of management perspective, technical detail, research outlook, and practical implementation.

The design of today's semiconductor chips for various applications, such as telecommunications, poses various challenges due to the complexity of these systems. These highly complex systems-on-chips demand new approaches to connect and manage the communication between on-chip processing and storage components and networks on chips (NoCs) provide a powerful solution.
This book is the first to provide a unified overview of NoC technology. It includes in-depth analysis of all the on-chip communication challenges, from physical wiring implementation up to software architecture, and a complete classification of their various Network-on-Chip approaches and solutions.
* Leading-edge research from world-renowned experts in academia and industry with state-of-the-art technology implementations/trends
* An integrated presentation not currently available in any other book
* A thorough introduction to current design methodologies and chips designed with NoCs

Engineering Ethics is the application of philosophical and moral systems to the proper judgment and behavior by engineers in conducting their work, including the products and systems they design and the consulting services they provide. In light of the work environment that inspired the new Sarbanes/Oxley federal legislation on whistle-blowing protections, a clear understanding of Engineering Ethics is needed like never before.
Beginning with a concise overview of various approaches to engineering ethics, the real heart of the book will be some 13 detailed case studies, delving into the history behind each one, the official outcome and the real story behind what happened. Using a consistent format and organization for each one giving background, historical summary, news media effects, outcome and interpretation--these case histories will be used to clearly illustrate the ethics issues at play and what should or should not have been done by the engineers, scientists and managers involved in each instance.
* Covers importance and practical benefits of systematic ethical behavior in any engineering work environment.
* Only book to explain implications of the Sarbanes/Oxley "Whistle-Blowing" federal legislation
* 13 actual case histories, plus 10 additional "anonymous" case histories-in consistent format-will clearly demonstrate the relevance of ethics in the outcomes of each one
* Offers actual investigative reports, with evidentiary material, legal proceedings, outcome and follow-up analysis
* Appendix offers copies of the National Society of Professional Engineers Code of Ethics for Engineers and the Institute of Electrical and Electronic Engineers Code of Ethics"

This book is a comprehensive guide to new DFT methods that will show the readers how to design a testable and quality product, drive down test cost, improve product quality and yield, and speed up time-to-market and time-to-volume.
. Most up-to-date coverage of design for testability.
. Coverage of industry practices commonly found in commercial DFT tools but not discussed in other books.
. Numerous, practical examples in each chapter illustrating basic VLSI test principles and DFT architectures.
. Lecture slides and exercise solutions for all chapters are now available.
. Instructors are also eligible for downloading PPT slide files and MSWORD solutions files from the manual website.

Without sensors most electronic applications would not exist-sensors perform a vital function, namely providing an interface to the real world. Hall effect sensors, based on a magnetic phenomena, are one of the most commonly used sensing technologies today. In the 1970s it became possible to build Hall effect sensors on integrated circuits with onboard signal processing circuitry, vastly reducing the cost and enabling widespread practical use. One of the first major applications was in computer keyboards, replacing mechanical contacts. Hundreds of millions of these devices are now manufactured each year for use in a great variety of applications, including automobiles, computers, industrial control systems, cell phones, and many others.
The importance of these sensors, however, contrasts with the limited information available. Many recent advances in miniaturization, smart sensor configurations, and networkable sensor technology have led to design changes and a need for reliable information. Most of the technical information on Hall effect sensors is supplied by sensor manufacturers and is slanted toward a particular product line. System design and control engineers need an independent, readable source of practical design information and technical details that is not product- or manufacturer-specific and that shows how Hall effect sensors work, how to interface to them, and how to apply them in a variety of uses. This book covers:
-the physics behind Hall effect sensors
-Hall effect transducers
-transducer interfacing
-integrated Hall effect sensors and how to interface to them
-sensing techniques using Hall effect sensors
-application-specific sensorICs
-relevant development and design tools
This second edition is expanded and updated to reflect the latest advances in Hall effect devices and applications!
Information about various sensor technologies is scarce, scattered and hard to locate. Most of it is either too theoretical for working engineers, or is manufacturer literature that can't be entirely trusted. Engineers and engineering managers need a comprehensive, up-to-date, and accurate reference to use when scoping out their designs incorporating Hall effect sensors.
* A comprehensive, up-to-date reference to use when crafting all kinds of designs with Hall effect sensors
*Replaces other information about sensors that is too theoretical, too biased toward one particular manufacturer, or too difficult to locate
*Highly respected and influential author in the burgeoning sensors community