Possible Scenarios for Homochirality on Earth
Possible Scenarios for Homochirality on Earth

Author: Michiya Fujiki

Publisher:

Published: 2019

Total Pages: 318

ISBN-13: 9783039217236

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In 1978, Fred Hoyle proposed that interstellar comets carrying several viruses landed on Earth as part of the panspermia hypotheses. With respect to life, the origin of homochirality on Earth has been the greatest mystery because life cannot exist without molecular asymmetry. Many scientists have proposed several possible hypotheses to answer this long-standing L-D question. Previously, Martin Gardner raised the question about mirror symmetry and broken mirror symmetry in terms of the homochirality question in his monographs (1964 and 1990). Possible scenarios for the L-D issue can be categorized into (i) Earth and exoterrestrial origins, (ii) by-chance and necessity mechanisms, and (iii) mirror-symmetrical and non-mirror-symmetrical forces as physical and chemical origins. These scenarios should involve further great amplification mechanisms, enabling a pure L- or D-world.

Discrete Harmonic Analysis
Discrete Harmonic Analysis

Author: Tullio Ceccherini-Silberstein

Publisher: Cambridge University Press

Published: 2018-06-21

Total Pages: 589

ISBN-13: 1107182336

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A self-contained introduction to discrete harmonic analysis with an emphasis on the Discrete and Fast Fourier Transforms.

Quasars, Redshifts and Controversies
Quasars, Redshifts and Controversies

Author: Halton C. Arp

Publisher: Cambridge University Press

Published: 1988-09-29

Total Pages: 220

ISBN-13: 9780521363143

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Contests the 'establishment' view of quasars as the most distant objects in the universe.

Quantum Mechanics
Quantum Mechanics

Author: Julian Schwinger

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 488

ISBN-13: 3662045893

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A unique legacy, these lecture notes of Schwinger’s course held at the University of California at Los Angeles were carefully edited by his former collaborator Berthold-Georg Englert and constitute both a self-contained textbook on quantum mechanics and an indispensable source of reference on this fundamental subject by one of the foremost thinkers of twentieth century physics.

Basic Organic Stereochemistry
Basic Organic Stereochemistry

Author: Ernest L. Eliel

Publisher: Wiley-Interscience

Published: 2001-04-11

Total Pages: 712

ISBN-13:

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A Practical Introduction to Stereochemistry Stereoisomers are compounds with the same chemical formula and connectivity but with different arrangements of their atoms in 3-dimensional space. Stereochemistry encompasses the study of stereoisomers and their properties. Despite having an identical chemical formula, stereoisomers can have drastically different biological, medicinal, and chemical properties. Basic Organic Stereochemistry explains in clear, concise terms the concepts and properties of stereoisomers. Ideal both as a text for advanced undergraduate or graduate students and as a handy guide for researchers in industry, this superb text covers: * Polarimetry and optical rotation * Internal coordinates, configuration, and conformation * Nature of stereoisomers * Barriers between stereoisomers and residual stereoisomers * Symmetry operators and symmetry point groups * Properties of stereoisomers and stereoisomer discrimination * Separation of stereoisomers, resolution, and racemization Suitable for students in organic and biological chemistry, Basic Organic Stereochemistry is unparalleled as a convenient text.