Animal Variation and Classification

Animal Variation and Classification

Author: Richard Spilsbury

Publisher: The Rosen Publishing Group, Inc

Published: 2010-01-15

Total Pages: 54

ISBN-13: 9781615323449

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Explains how our animal classification system works and looks at how scientists use it to identify and group animal species, explores the variation between and within animal species and discusses how and why such variations have occurred.


Arterial Variations in Man

Arterial Variations in Man

Author: Hans Lippert

Publisher: J.F. Bergmann-Verlag

Published: 2011-12-08

Total Pages: 122

ISBN-13: 9783642805103

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In textbooks on anatomy, radiology and stead of the normal one. An "accessory ar­ surgery only the "normal" arterial blood tery" is a second artery ip addition to the one normally present, without any specifi­ supply is usually described. This "nor­ mality", however, is sometimes found in cation of size being made. However, there less than 30% of all cases for some arteries, is no general agreement on whether minute but in over 95% for others. Rarely men­ vessels with very small diameters and hard­ tioned are deviations in the individual ar­ ly any significant blood flow should also be tery's origin, topographical localization and considered. the area it supplies. They can be classified The aims of this book were twofold: first, to into two groups: malformations and vari­ extract the frequency of arterial anomalies from the literature (often published in inac­ ations. Malformations often have a nega­ tive influence on the function of the organ cessible journals) and second, to classity under normal circumstances, e.g. if both these arteries by schematic outlines of the basic types.


Post-Archean Granitic Rocks

Post-Archean Granitic Rocks

Author: V. Janoušek

Publisher: Geological Society of London

Published: 2020-07-02

Total Pages: 298

ISBN-13: 1786204487

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Granites (sensu lato) represent the dominant rock-type forming the upper–middle continental crust but their origin remains a matter of long-standing controversy. The granites may result from fractionation of mantle-derived basaltic magmas, or partial melting of different crustal protoliths at contrasting P–T conditions, either water-fluxed or fluid-absent. Consequently, many different mechanisms have been proposed to explain the compositional variability of granites ranging from whole igneous suites down to mineral scale. This book presents an overview of the state of the art, and envisages future avenues towards a better understanding of granite petrogenesis. Particular emphasis of this Volume is on the following topics: Compositional variability of granitic rocks generated in contrasting geodynamic settings during Proterozoic to Phanerozoic Periods, Main permissible mechanisms producing subduction-related granites, Crustal anatexis of different protoliths, and the role of water in granite petrogenesis, New theoretical and analytical tools available for modelling whole-rock geochemistry, in order to decipher the sources and evolution of granitic suites.


A Framework for K-12 Science Education

A Framework for K-12 Science Education

Author: National Research Council

Publisher: National Academies Press

Published: 2012-02-28

Total Pages: 400

ISBN-13: 0309214459

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Science, engineering, and technology permeate nearly every facet of modern life and hold the key to solving many of humanity's most pressing current and future challenges. The United States' position in the global economy is declining, in part because U.S. workers lack fundamental knowledge in these fields. To address the critical issues of U.S. competitiveness and to better prepare the workforce, A Framework for K-12 Science Education proposes a new approach to K-12 science education that will capture students' interest and provide them with the necessary foundational knowledge in the field. A Framework for K-12 Science Education outlines a broad set of expectations for students in science and engineering in grades K-12. These expectations will inform the development of new standards for K-12 science education and, subsequently, revisions to curriculum, instruction, assessment, and professional development for educators. This book identifies three dimensions that convey the core ideas and practices around which science and engineering education in these grades should be built. These three dimensions are: crosscutting concepts that unify the study of science through their common application across science and engineering; scientific and engineering practices; and disciplinary core ideas in the physical sciences, life sciences, and earth and space sciences and for engineering, technology, and the applications of science. The overarching goal is for all high school graduates to have sufficient knowledge of science and engineering to engage in public discussions on science-related issues, be careful consumers of scientific and technical information, and enter the careers of their choice. A Framework for K-12 Science Education is the first step in a process that can inform state-level decisions and achieve a research-grounded basis for improving science instruction and learning across the country. The book will guide standards developers, teachers, curriculum designers, assessment developers, state and district science administrators, and educators who teach science in informal environments.


The Folk Classification of Ceramics

The Folk Classification of Ceramics

Author: Willett Kempton

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 256

ISBN-13: 032315882X

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The Folk Classification of Ceramics: A Study of Cognitive Prototypes provides a general understanding of folk classification that compares cognitive structures across cultures through anthropological field studies. The topic of this book, the structure and use of folk categories, is relevant to all cognitive sciences and is distinctly anthropological in examining variation among subcultural groups and change through time. The study of variation and change illuminates aspects of category structure that would not be envisioned from experiment or introspection. This text concentrates on the study of folk classification of artifacts on ceramic vessels, focusing on gross social groupings such as "potters or "traditional villages. Some topics discussed include the exploring interview techniques; structure of vessel categories; subcultural variation; and semantic change. This publication is a good reference to students studying folk classification and other disciplines such as cognitive psychology, linguistic semantics, and artificial intelligence. - Focuses on the process of risk assessment, management and communication, the key to the study of air pollution - Provides the latest information on the technological breakthroughs in environmental engineering since last edition - Updated information on computational and diagnostic and operational tools that have emerged in recent years


The Animal Kingdom

The Animal Kingdom

Author: Kathryn Whyman

Publisher: Raintree

Published: 1999

Total Pages: 54

ISBN-13: 9780817258856

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Examines the similarities and differences between the five classes of vertebrates, or animals with backbones: fish, amphibians, reptiles, birds, and mammals.