Nature's Matrix

Nature's Matrix

Author: Ivette Perfecto

Publisher: Earthscan

Published: 2009

Total Pages: 257

ISBN-13: 1849770131

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Landscapes are frequently seen as fragments of natural habitat surrounded by a 'sea' of agriculture. But recent ecological theory shows that the nature of these fragments is not nearly as important for conservation as is the nature of the matrix of agriculture that surrounds them. Local extinctions from conservation fragments are inevitable and must be balanced by migrations if massive extinction is to be avoided. High migration rates only occur in what the authors refer to as 'high quality' matrices, which are created by alternative agroecological techniques, as opposed to the industrial monocultural model of agriculture. The authors argue that the only way to promote such high quality matrices is to work with rural social movements. Their ideas are at odds with the major trends of some of the large conservation organizations that emphasize targeted land purchases of protected areas. They argue that recent advances in ecological research make such a general approach anachronistic and call, rather, for solidarity with the small farmers around the world who are currently struggling to attain food sovereignty.Nature's Matrix proposes a radically new approach to the conservation of biodiversity based on recent advances in the science of ecology plus political realities, particularly in the world's tropical regions.


Nature Matrix

Nature Matrix

Author: Robert Michael Pyle

Publisher: Catapult

Published: 2020-09-15

Total Pages: 240

ISBN-13: 1640092773

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Nature Matrix is a gathering of some of Robert Michael Pyle’s most significant, original, and timely expressions of a life immersed in the natural world, in all its splendor, power, and peril Nature Matrix: New and Selected Essays contains sixteen pieces that encompass the philosophy, ethic, and aesthetic of Robert Michael Pyle. The essays range from Pyle’s experience as a young national park ranger in the Sierra Nevada to the streets of Manhattan; from the suburban jungle to the tangles of the written word; and from the phenomenon of Bigfoot to that of the Big Year—a personal exercise in extreme birding and butterflying. They include deep profiles of John Jacob Astor I and Vladimir Nabokov, as well as excursions into wild places with teachers, children, and writers. The nature of real wilderness in modern times comes under Pyle’s lens, as does reconsideration of his trademark concept, “the extinction of experience”—maybe the greatest threat of alienation from the living world that we face today. Nature Matrix shows a way back toward possible integration with the world, as it plumbs the range and depth of experience in one lucky life lived in close connection to the physical earth and its denizens. This collection brings together the thoughts and hopes of one of our most widely read and respected natural philosophers as he seeks to summarize a life devoted to conservation.


Nature Matrix

Nature Matrix

Author: Robert Michael Pyle

Publisher: Catapult

Published: 2020-09-15

Total Pages: 289

ISBN-13: 1640092765

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Nature Matrix is a gathering of some of Robert Michael Pyle’s most significant, original, and timely expressions of a life immersed in the natural world, in all its splendor, power, and peril Nature Matrix: New and Selected Essays contains sixteen pieces that encompass the philosophy, ethic, and aesthetic of Robert Michael Pyle. The essays range from Pyle’s experience as a young national park ranger in the Sierra Nevada to the streets of Manhattan; from the suburban jungle to the tangles of the written word; and from the phenomenon of Bigfoot to that of the Big Year—a personal exercise in extreme birding and butterflying. They include deep profiles of John Jacob Astor I and Vladimir Nabokov, as well as excursions into wild places with teachers, children, and writers. The nature of real wilderness in modern times comes under Pyle’s lens, as does reconsideration of his trademark concept, “the extinction of experience”—maybe the greatest threat of alienation from the living world that we face today. Nature Matrix shows a way back toward possible integration with the world, as it plumbs the range and depth of experience in one lucky life lived in close connection to the physical earth and its denizens. This collection brings together the thoughts and hopes of one of our most widely read and respected natural philosophers as he seeks to summarize a life devoted to conservation.


Polymer Matrix Composites and Technology

Polymer Matrix Composites and Technology

Author: Ru-Min Wang

Publisher: Elsevier

Published: 2011-07-14

Total Pages: 570

ISBN-13: 0857092227

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Given such properties as low density and high strength, polymer matrix composites have become a widely used material in the aerospace and other industries. Polymer matrix composites and technology provides a helpful overview of these materials, their processing and performance.After an introductory chapter, part one reviews the main reinforcement and matrix materials used as well as the nature of the interface between them. Part two discusses forming and molding technologies for polymer matrix composites. The final part of the book covers key aspects of performance, including tensile, compression, shear and bending properties as well as impact, fatigue and creep behaviour.Polymer matrix composites and technology provides both students and those in industry with a valuable introduction to and overview of this important class of materials. - Provides a helpful overview of these materials, their processing and performance incorporating naming and classification of composite materials - Reviews the main reinforcement and matrix materials used as well as the nature of the interface between them including damage mechanisms - Discusses forming and molding technologies for polymer matrix composites outlining various techniques and technologies


Introduction to Linear and Matrix Algebra

Introduction to Linear and Matrix Algebra

Author: Nathaniel Johnston

Publisher: Springer Nature

Published: 2021-05-19

Total Pages: 482

ISBN-13: 3030528111

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This textbook emphasizes the interplay between algebra and geometry to motivate the study of linear algebra. Matrices and linear transformations are presented as two sides of the same coin, with their connection motivating inquiry throughout the book. By focusing on this interface, the author offers a conceptual appreciation of the mathematics that is at the heart of further theory and applications. Those continuing to a second course in linear algebra will appreciate the companion volume Advanced Linear and Matrix Algebra. Starting with an introduction to vectors, matrices, and linear transformations, the book focuses on building a geometric intuition of what these tools represent. Linear systems offer a powerful application of the ideas seen so far, and lead onto the introduction of subspaces, linear independence, bases, and rank. Investigation then focuses on the algebraic properties of matrices that illuminate the geometry of the linear transformations that they represent. Determinants, eigenvalues, and eigenvectors all benefit from this geometric viewpoint. Throughout, “Extra Topic” sections augment the core content with a wide range of ideas and applications, from linear programming, to power iteration and linear recurrence relations. Exercises of all levels accompany each section, including many designed to be tackled using computer software. Introduction to Linear and Matrix Algebra is ideal for an introductory proof-based linear algebra course. The engaging color presentation and frequent marginal notes showcase the author’s visual approach. Students are assumed to have completed one or two university-level mathematics courses, though calculus is not an explicit requirement. Instructors will appreciate the ample opportunities to choose topics that align with the needs of each classroom, and the online homework sets that are available through WeBWorK.


The Laws of Human Nature

The Laws of Human Nature

Author: Robert Greene

Publisher: Robert Greene

Published:

Total Pages: 73

ISBN-13:

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SUMMARY: This book is If you’ve ever wondered about human behavior, wonder no more. In The Laws of Human Nature, Greene takes a look at 18 laws that reveal who we are and why we do the things we do. Humans are complex beings, but Greene uses these laws to strip human nature down to its bare bones. Every law that he presents is supported by a real-life historical account, with an insightful twist to drive the point home. As you read the book, don’t be surprised if you get the feeling that everyone you know, including yourself, is described in the book! DISCLAIMER: This is an UNOFFICIAL summary and not the original book. It is designed to record all the key points of the original book.


Design Structure Matrix Methods and Applications

Design Structure Matrix Methods and Applications

Author: Steven D. Eppinger

Publisher: MIT Press

Published: 2012-05-25

Total Pages: 347

ISBN-13: 0262300656

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An introduction to a powerful and flexible network modeling tool for developing and understanding complex systems, with many examples from a range of industries. Design structure matrix (DSM) is a straightforward and flexible modeling technique that can be used for designing, developing, and managing complex systems. DSM offers network modeling tools that represent the elements of a system and their interactions, thereby highlighting the system's architecture (or designed structure). Its advantages include compact format, visual nature, intuitive representation, powerful analytical capacity, and flexibility. Used primarily so far in the area of engineering management, DSM is increasingly being applied to complex issues in health care management, financial systems, public policy, natural sciences, and social systems. This book offers a clear and concise explanation of DSM methods for practitioners and researchers.


The Grid

The Grid

Author: Phillip F. Schewe

Publisher: National Academies Press

Published: 2007-02-20

Total Pages: 319

ISBN-13: 030910260X

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The electrical grid goes everywhere-it's the largest and most complex machine ever made. Yet the system is built in such a way that the bigger it gets, the more inevitable its collapse. Named the greatest engineering achievement of the 20th century by the National Academy of Engineering, the electrical grid is the largest industrial investment in the history of humankind. It reaches into your home, snakes its way to your bedroom, and climbs right up into the lamp next to your pillow. At times, it almost seems alive, like some enormous circulatory system that pumps life to big cities and the most remote rural areas. Constructed of intricately interdependent components, the grid operates on a rapidly shrinking margin for error. Things can-and do-go wrong in this system, no matter how many preventive steps we take. Just look at the colossal 2003 blackout, when 50 million Americans lost power due to a simple error at a power plant in Ohio; or the one a month later, which blacked out 57 million Italians. And these two combined don't even compare to the 2001 outage in India, which affected 226 million people. The Grid is the first history of the electrical grid intended for general readers, and it comes at a time when we badly need such a guide. As we get more and more dependent on electricity to perform even the most mundane daily tasks, the grid's inevitable shortcomings will take a toll on populations around the globe. At a moment when energy issues loom large on the nation's agenda and our hunger for electricity grows, The Grid is as timely as it is compelling.