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Heart of Darkness describes the incredible saga of humankind's quest to unravel the deepest secrets of the universe. Over the past thirty years, scientists have learned that two little-understood components--dark matter and dark energy--comprise most of the known cosmos, explain the growth of all cosmic structure, and hold the key to the universe's fate. The story of how evidence for the so-called "Lambda-Cold Dark Matter" model of cosmology has been gathered by generations of scientists throughout the world is told here by one of the pioneers of the field, Jeremiah Ostriker, and his coauthor Simon Mitton. From humankind's early attempts to comprehend Earth's place in the solar system, to astronomers' exploration of the Milky Way galaxy and the realm of the nebulae beyond, to the detection of the primordial fluctuations of energy from which all subsequent structure developed, this book explains the physics and the history of how the current model of our universe arose and has passed every test hurled at it by the skeptics. Throughout this rich story, an essential theme is emphasized: how three aspects of rational inquiry--the application of direct measurement and observation, the introduction of mathematical modeling, and the requirement that hypotheses should be testable and verifiable--guide scientific progress and underpin our modern cosmological paradigm. This monumental puzzle is far from complete, however, as scientists confront the mysteries of the ultimate causes of cosmic structure formation and the real nature and origin of dark matter and dark energy.
Dark matter (Astronomy) --- Dark energy (Astronomy) --- Cosmology --- Astrophysics --- Force and energy --- Nonluminous matter (Astronomy) --- Unobserved matter (Astronomy) --- Unseen matter (Astronomy) --- Interstellar matter --- Astronomy
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Investigative Techniques --- Education, Professional --- Health Care Evaluation Mechanisms --- Science --- Quality of Health Care --- Natural Science Disciplines --- Education --- Health Services Administration --- Analytical, Diagnostic and Therapeutic Techniques and Equipment --- Health Care Quality, Access, and Evaluation --- Disciplines and Occupations --- Health Care --- Anthropology, Education, Sociology and Social Phenomena --- Evaluation Studies as Topic --- Program Evaluation --- Education, Graduate --- Research --- Physical Sciences & Mathematics --- Social Sciences --- Theory & Practice of Education --- Sciences - General --- Doctor of philosophy degree --- Engineering --- Construction --- Industrial arts --- Technology --- Natural science --- Science of science --- Sciences --- Ph. D. degree --- PhD degree --- Philosophy, Doctor of --- Degrees, Academic --- Science research --- Scientific research --- Information services --- Learning and scholarship --- Methodology --- Research teams --- Evaluation. --- Study and teaching (Higher) --- Humanities --- Evaluation --- Study and teaching (Higher)&delete& --- Classical education --- Natural sciences
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"A Data-Based Assessment of Research-Doctorate Programs in the United States provides an unparalleled dataset collected from doctoral programs, doctoral faculty and public sources that can be use to assess the quality and effectiveness of doctoral programs based on measures important to faculty, students, administrators, funders, and other stakeholders. The committee collected 20 measures that include characteristicsof the faculty, such as publications, citations, grants, and diversity; and characteristics of the students, such as their GRE scores, financial support, publications, and diversity; anc characteristics of the program, such as number of Ph.D.s granted over five years, time to degree, percentage of student completion, and placement of students after graduation. The data were collected for the academic year 2005-2006 from more than 5,000 doctoral programs at 212 universities. these observations span 62 fields and the research productivity data are based typicaly on a five-year interval. Some datasets (such as publications and citations) go as far back as 1981. Information on enrollments and faculty size were also collected for 14 emerging fields ... Accompanying the report are Data tables and a detailed explanation of the methodology used to collect data and calculate ranges of rankings--Summary.
Universities and colleges --- Research --- Doctor of philosophy degree --- Science --- Humanities --- Engineering --- Social sciences --- Educational surveys --- Schools --- Education --- Financial Support --- Health Care Evaluation Mechanisms --- Investigative Techniques --- Education, Professional --- Analytical, Diagnostic and Therapeutic Techniques and Equipment --- Anthropology, Education, Sociology and Social Phenomena --- Quality of Health Care --- Economics --- Health Care Quality, Access, and Evaluation --- Health Care Economics and Organizations --- Health Care --- Educational Measurement --- Education, Graduate --- Universities --- Research Support as Topic --- Evaluation Studies as Topic --- Social Sciences --- Theory & Practice of Education --- Study and teaching (Graduate) --- Evaluation. --- Evaluation --- Graduate work --- Ratings and rankings --- Schools. --- Education. --- Financial Support. --- Health Care Evaluation Mechanisms. --- Investigative Techniques. --- Education, Professional. --- Quality of Health Care. --- Economics. --- Health Care Quality, Access, and Evaluation. --- Health Care Economics and Organizations. --- Delivery of Health Care. --- Educational Measurement. --- Education, Graduate. --- Universities. --- Research Support as Topic. --- Evaluation Studies as Topic.
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Chemistry, Physical and theoretical --- Hydrodynamics --- Nuclear physics --- Particles (Nuclear physics) --- Nuclear astrophysics --- Cosmology --- Physics.
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