The Grasslands of the United States PDF Download
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Author: James E. Sherow
Publisher: ABC-CLIO
ISBN: 1851097201
Category : Science
Languages : en
Pages : 0
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Book Description
"Treeless, level, and semi-arid." Walter Prescott Webb?s famous description of the Great Plains is really only part of their story. From their creation at the end of the Ice Age to the ongoing problems of depopulation, soil erosion, polluted streams, and depleted groundwater aquifers, human interaction with the prairies has often been controversial. The Grasslands of the United States: An Environmental History explores the historical and ecological dimensions of human interaction with North America?s grasslands. Examining issues as diverse as whether the arrival of the Paleo-Indians led to the extinction of the mammoth and the consequences of industrialization and genetically modified crops, this invaluable reference synthesizes literature from a wide range of authoritative sources to provide a fascinating guide to the environment of this biome.
Author: Darling Models
Publisher: McGraw-Hill Education
ISBN: 9780964883710
Category : Science
Languages : en
Pages : 0
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Book Description
Molecular models are as vital a tool for the study of chemistry as calculators are for the study of mathematics. Molecular Visions models may be assembled in infinite combinations enabling the user to construct not only familiar configurations but also undiscovered possibilities. Models are intended to inspire the imagination, stimulate thought, and assist the visualization process. They present the user with a solid form of an abstract object that can otherwise only be visualized by the chemist. While chemistry textbooks use letters and graphics to describe molecules, molecular models make them "real". MOLECULAR VISIONS Organic Kit #1 is in a green plastic box, 9"x4"x2"
Author: Ronald J Gillespie
Publisher: Courier Corporation
ISBN: 0486310523
Category : Science
Languages : en
Pages : 274
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Book Description
Valence Shell Electron Pair Repulsion (VSEPR) theory is a simple technique for predicting the geometry of atomic centers in small molecules and molecular ions. This authoritative reference was written by Istvan Hartiggai and the developer of VSEPR theory, Ronald J. Gillespie. In addition to its value as a text for courses in molecular geometry and chemistry, it constitutes a classic reference for professionals. Starting with coverage of the broader aspects of VSEPR, this volume narrows its focus to a succinct survey of the methods of structural determination. Additional topics include the applications of the VSEPR model and its theoretical basis. Helpful data on molecular geometries, bond lengths, and bond angles appear in tables and other graphics.
Author: James E. Sherow
Publisher: ABC-CLIO
ISBN: 1851097201
Category : Science
Languages : en
Pages : 0
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Book Description
"Treeless, level, and semi-arid." Walter Prescott Webb?s famous description of the Great Plains is really only part of their story. From their creation at the end of the Ice Age to the ongoing problems of depopulation, soil erosion, polluted streams, and depleted groundwater aquifers, human interaction with the prairies has often been controversial. The Grasslands of the United States: An Environmental History explores the historical and ecological dimensions of human interaction with North America?s grasslands. Examining issues as diverse as whether the arrival of the Paleo-Indians led to the extinction of the mammoth and the consequences of industrialization and genetically modified crops, this invaluable reference synthesizes literature from a wide range of authoritative sources to provide a fascinating guide to the environment of this biome.
Author: Jan H. Jensen
Publisher: CRC Press
ISBN: 1420075276
Category : Science
Languages : en
Pages : 192
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Book Description
Molecular modeling is becoming an increasingly important part of chemical research and education as computers become faster and programs become easier to use. The results, however, have not become easier to understand. Addressing the need for a "workshop-oriented" book, Molecular Modeling Basics provides the fundamental theory needed to understand
Author: T. W. Graham Solomons
Publisher: Wiley
ISBN: 9780471362715
Category : Science
Languages : en
Pages : 0
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Book Description
Manufactured by Darling Model Kits, this custom kit was designed by T.W.Graham Solomons. The kit consists of Darling's basic Molecular Vision kit with a few additional pieces, so that p orbitals could be shown in molecules like acetylene. This customized kit also has pieces that allow linear geometry for the sigma bonds of alkynes while also having orthogonal connections at each atom for the associated p orbitals. By attaching balls of the right colors it is possible to show the lobes of the p orbitals that make up the pi bonds in an alkyne. Ball colors can be matched symmetrically to show in-phase orbital overlap, or antisymmetrically to show an antibonding state. Use of colored balls with the appropriate framework geometry is a very nice feature of the Darling model set. Pieces from Darling's inorganic model set and are used for octahedral geometry.
Author: Robert Hanson
Publisher: University Science Books
ISBN: 9780935702309
Category : Science
Languages : en
Pages : 244
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Book Description
Designed as a workbook and resource for students, teachers and chemists who want to create and study paper models of molecules and ions, this book includes: folding instructions; basic background information about bonding; general questions and answers; and over 60 tear-out model patterns representing basic shapes and ideas. The shapes and models are based on actual data and provided in scale.
Author: Tamar Schlick
Publisher: Springer Science & Business Media
ISBN: 0387224645
Category : Science
Languages : en
Pages : 669
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Book Description
Very broad overview of the field intended for an interdisciplinary audience; Lively discussion of current challenges written in a colloquial style; Author is a rising star in this discipline; Suitably accessible for beginners and suitably rigorous for experts; Features extensive four-color illustrations; Appendices featuring homework assignments and reading lists complement the material in the main text
Author: Hans-Dieter Höltje
Publisher: John Wiley & Sons
ISBN: 3527614761
Category : Science
Languages : de
Pages : 206
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Book Description
Written by experienced experts in molecular modeling, this books describes the basics to the extent that is necessary if one wants to be able to reliably judge the results from molecular modeling calculations. Its main objective is the description of the various pitfalls to be avoided. Without unnecessary overhead it leads the reader from simple calculations on small molecules to the modeling of proteins and other relevant biomolecules. A textbook for beginners as well as an invaluable reference for all those dealing with molecular modeling in their daily work!
Author: Didier Mathieu
Publisher: Elsevier
ISBN: 0128231106
Category : Science
Languages : en
Pages : 488
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Book Description
Molecular Modeling of the Sensitivities of Energetic Materials, Volume 22 introduces experimental aspects, explores the relationships between sensitivity, molecular structure and crystal structure, discusses insights from numerical simulations, and highlights applications of these approaches to the design of new materials. Providing practical guidelines for implementing predictive models and their application to the search for new compounds, this book is an authoritative guide to an exciting field of research that warrants a computer-aided approach for the investigation and design of safe and powerful explosives or propellants. Much recent effort has been put into modeling sensitivities, with most work focusing on impact sensitivity and leading to a lot of experimental data in this area. Models must therefore be developed to allow evaluation of significant properties from the structure of constitutive molecules. Highlights a range of approaches for computational simulation and the importance of combining them to accurately understand or estimate different parameters Provides an overview of experimental findings and knowledge in a quick and accessible format Presents guidelines to implement sensitivity models using open-source python-related software, thus supporting easy implementation of flexible models and allowing fast assessment of hypotheses
Author: Angel Herráez
Publisher: Lulu.com
ISBN: 1847992595
Category : Computers
Languages : en
Pages : 144
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Book Description
Jmol is an interactive viewer for molecular models in the computer. This book aims to be both a tutorial for beginners and a handbook for reference and deepening for more skilled users. It may be of profit for instructors, content authors, students, researchers, and administrators or designers of information portals. The book is organized in sections for a gradual learning curve. It starts with the simplest and most frequent commands and then advances into the occasional, specific and more complex ones. There are sections addressed to those who only need occasional and basic use, another that explains how to take advantage of the command language -split into two levels and further continued on vol. 2- and, finally, a section only needed by those interested on preparing web pages to present models to others. A command index is included, as well as a glossary and a listing of reference addresses in internet, including that of the companion website created for this book.
