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Astronomy


Astronomy is a natural science that deals with the study of celestial objects (such as stars, planets, comets, nebulae, star clusters and galaxies) and phenomena that originate outside the Earth's atmosphere (such as the cosmic background radiation). It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe.

 
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World Health Organization : Year 2000 ; World Health Organization,...

By: L. Fishbein

Medical Reference Publication

FOREWORD The principal focus of this work is to mher the objectives of the IPCS in its elaboration and evaluation of the effects of chemicals on human health and the environment and the development of methodology, testing methods and risk evaluation by highlighting the basic tenets of the cornerstone, toxicology. Toxicology is increasingly recognized to be a dynamic discipline where change is being driven by both technological and conceptual advances. Hence this report w...

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Results and Recommendations

By: Bradley O. Parks

Excerpt: Foreword: The National Biological Information Infrastructure (NBII) is being implemented to serve national biodiversity management, research, and education needs. It began in the middle 1990’s as a World Wide Web-based information system developed through partnerships with key organizations. The U.S. Geological Survey (USGS) Center for Biological Informatics (CBI) serves as an infrastructure node and provides leadership for NBII implementation. The NBII seeks to...

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Advances and Applications of DSmT for Information Fusion (Collecte...

By: Florentin Smarandache; Jean Dezert

This book is devoted to an emerging branch of Information Fusion based on new approach for modeling the fusion problematic when the information provided by the sources is both uncertain and (highly) conflicting. This approach, known in literature as DSmT (standing for Dezert-Smarandache Theory), proposes new useful rules of combinations. We gathered in this volume a presentation of DSmT from the beginning to the latest development. Part 1 of this book presents the curren...

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Assessing the Quality of the March Current Population Survey and t...

By: Marc Roemer

Statistical Reference Document

Excerpt: This investigation attempts to develop administrative benchmarks of income compatible with the March Current Population Survey (CPS) and the Survey of Income and Program Participation (SIPP), two income surveys conducted by the U.S. Census Bureau. Many people are reluctant to reveal their incomes to survey researchers, and this reluctance makes such surveys particularly prone to response errors. A respondent can fail to report receipt of income, fail to report t...

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Current Population Reports

By: Edwin Byerly

Statistical Reference Document

Introduction: This report represents a synthesis of three previously separate series P25 reports: 1. An annual State estimates report, with age-sex detail and components of population change 2. An annual national level report with age-race-sex- Hispanic origin detail 3. Amonthly national ?boilerplate? report showing monthly estimates for three population universes This report begins with a brief section highlighting 1990 to 1994 population trends. A separate Current Popu...

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