This updated translation connects the literature and routine activities of geophysicists. It shows how practical problems have links to seismic data analysis theory. Phase and amplitude distortions to the seismic signal, the physical processes that it undergoes, and the interpretation methods to recover rock physics properties are explained. Filling the gap between theoretical literature and the routine activities of geophysicists in the oil industry, The Seismic Signal and Its Meaning is a translation of the second edition of Análise do Sinal Sísmico, published in Portuguese by Sociedade Brasileira de Geofísica (SBGf). For those performing acquisition, processing, and/or interpretation, this book will aid an understanding of how practical problems may have important links to seismic data analysis theory. With an emphasis on providing an objective description of the physical and mathematical aspects that support these links, the rules necessary for robust reservoir characterization are presented. With an extensive development of Gassmann’s (and Biot) theory, the book concentrates on phase and amplitude distortions to the seismic signal, the physical processes that it undergoes, and the interpretation methods to recover rock physics properties. Capturing 30 years of teaching and improvement as a part of Petrobras’ internal courses, the book is a modern treatment, reflecting the many advances that have occurred in geophysics. The book serves as both a text and a reference.

A manual of signals so that members of the military can communicate with each other.

This is the second volume of papers on sign-based linguistics to emerge from Columbia School linguistics conferences. One set of articles offers semantic analyses of grammatical features of specific languages: English full-verb inversion; Serbo-Croatian deictic pronouns; English auxiliary "do"; Italian pronouns "egli" and "lui"; the Celtic-influenced use of "on" (e.g., he played a trick "on" me ); a monosemic analysis of the English verb "break." A second set deals with general theoretical issues: a solution to the problem that noun class markers (e.g. Swahili) pose for sign-based linguistics; the appropriateness of statistical tests of significance in text-based analysis; the word or the morpheme as the locus of paradigmatic inflectional change; the radical consequences of Saussure s anti-nomenclaturism for syntactic analysis; the future of minimalist linguistics in a maximalist world. A third set explains phonotactic patterning in terms of ease of articulation: aspirated and unaspirated stop consonants in Urdu; initial consonant clusters in more than two dozen languages. An introduction highlights the theoretical and analytical points of each article and their relation to the Columbia School framework. The collection is relevant to cognitive semanticists and functionalists as well as those working in the sign-based Jakobsonian and Guillaumist frameworks.