LEADER 03898oam 22006974a 450 001 9910367625503321 005 20240424230449.0 010 $a9781501740671 010 $a1501740679 010 $a9781501740688 010 $a1501740687 024 7 $a10.7591/9781501740688 035 $a(CKB)4100000008167456 035 $a(DE-B1597)527515 035 $a(OCoLC)1100444937 035 $a(DE-B1597)9781501740688 035 $a(MiAaPQ)EBC5965058 035 $a(Au-PeEL)EBL5965058 035 $a(MdBmJHUP)muse78562 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/91663 035 $a(Perlego)950731 035 $a(oapen)doab91663 035 $a(EXLCZ)994100000008167456 100 $a20190430d2019 uy 0 101 0 $aeng 135 $aur||#|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aSecurity, loyalty, and science /$fWalter Gellhorn 210 $cCornell University Press$d2019 210 1$aIthaca, NY :$cCornell University Press,$d[2019] 210 4$dİ[2019] 215 $a1 online resource (312 p.) 225 0 $aCornell studies in civil liberty 300 $aOriginally published in 1950. 311 1 $a9781501740695 311 1 $a1501740695 320 $aIncludes bibliographic references and index. 327 $aFrontmatter -- Preface -- Contents -- Introduction -- I. Keeping Secrets -- II. The Balance Sheet of Secrecy -- III. The Proper Limits of Secrecy -- IV. The Standards and Mechanics of Security Clearance -- V. The Spreading of Security Requirements -- VI. The Loyalty of Federal Scientists -- VII. The Universities and Security Searcher -- VIII. The Need for Fair Procedures -- IX. Concluding Thoughts -- Appendix A. Declassification Policy -- Appendix B. AEC Criteria for Determining Eligibility for Personnel Security Clearance (January 5, I949) -- Notes -- Acknowledgments -- Index 330 $aBoth sides of a sensitive problem are assessed by Professor Gellhorn in this penetrating analysis of national security and its effect upon scientific progress.The costs and advantages of secrecy in certain areas of science and the conflict between national safety and individual rights in the administration of our federal loyalty program are presented; all the arguments are objectively weighed. The book answers such questions as: Can young scientists be well trained when publication and teaching are not free? Have we gone far enough-or too far-in avoiding "security risks" in important scientific establishments? How does the federal drive against "potentially disloyal" persons actually work? Do "fear of the smear" and crude methods discourage public service by American scientists? This study, a unit of an investigation of control of subversive activities supported by grants from the Rockefeller Foundation, is based upon two years of research and numerous field interviews of scientists, administrators, defense officials, and educators. Security, Loyalty, and Science is a volume in the series Cornell Studies in Civil Liberty, of which Robert E. Cushman is advisory editor. 410 0$aCornell studies in civil liberty 606 $aScientists$2fast$3(OCoLC)fst01108895 606 $aLoyalty$2fast$3(OCoLC)fst01003283 606 $aPOLITICAL SCIENCE / Security (National & International)$2bisacsh 606 $aScientists$zUnited States 606 $aLoyalty 607 $aUnited States$2fast 615 0$aScientists. 615 0$aLoyalty. 615 0$aPOLITICAL SCIENCE / Security (National & International). 615 0$aScientists 615 0$aLoyalty. 676 $a351.74 700 $aGellhorn$b Walter$f1906-1995$0242579 801 0$bMdBmJHUP 801 1$bMdBmJHUP 906 $aBOOK 912 $a9910367625503321 996 $aSecurity, Loyalty, and Science$92429197 997 $aUNINA LEADER 03649nam 22006015 450 001 9910366588403321 005 20200702054340.0 010 $a3-030-25462-3 024 7 $a10.1007/978-3-030-25462-9 035 $a(CKB)4100000009273569 035 $a(DE-He213)978-3-030-25462-9 035 $a(MiAaPQ)EBC5940879 035 $a(EXLCZ)994100000009273569 100 $a20190916d2020 u| 0 101 0 $aeng 135 $aurnn|008mamaa 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aCommunication Systems /$fby Marcelo S. Alencar, Valdemar C. da Rocha Jr 205 $a2nd ed. 2020. 210 1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2020. 215 $a1 online resource (XIX, 401 p. 197 illus., 1 illus. in color.) 311 $a3-030-25461-5 327 $aIntroduction -- Signal Analysis -- Probability Theory and Random Processes -- Speech Coding -- Amplitude Modulation -- Quadrature Amplitude Modulation -- Angle Modulation -- Propagation Channels -- Carrier Transmission -- Mobile Cellular Telephony -- Conclusion. 330 $a This revised textbook fully updates its comprehensive coverage of Fourier transform, convolution, and definitions of autocorrelation and power spectral density. The new edition reflects the emergence of a variety of new services and systems. It continues to cover the concepts of probability, random variables, and stochastic processes in full, but brings them up to speed for the modern context. The book now features a new appendix on LTE, fully revamped of figures and tables, new information on AM-VSB Modulation, new examples related to new digital television standards, and a thoroughly revamped chapter on Mobile Cellular Telephony. All major topics including channel modeling, channel characteristics, and propagation are still covered, with an emphasis on simple models. Many updated examples are provided as well as problems at the end of each chapter to allow the reader to practice the acquired knowledge. · Fully updated coverage on analog and digital concepts for communication system · Includes new information on AM-VSB modulation, multipath effects, and standards · Features revamped chapter problems for self-testing and exploration in addition to a full suite of classroom material. 606 $aElectrical engineering 606 $aComputer networks 606 $aSignal processing 606 $aImage processing 606 $aSpeech processing systems 606 $aCommunications Engineering, Networks$3https://scigraph.springernature.com/ontologies/product-market-codes/T24035 606 $aComputer Communication Networks$3https://scigraph.springernature.com/ontologies/product-market-codes/I13022 606 $aSignal, Image and Speech Processing$3https://scigraph.springernature.com/ontologies/product-market-codes/T24051 615 0$aElectrical engineering. 615 0$aComputer networks. 615 0$aSignal processing. 615 0$aImage processing. 615 0$aSpeech processing systems. 615 14$aCommunications Engineering, Networks. 615 24$aComputer Communication Networks. 615 24$aSignal, Image and Speech Processing. 676 $a621.3822 676 $a621.382 700 $aAlencar$b Marcelo S$4aut$4http://id.loc.gov/vocabulary/relators/aut$0950896 702 $ada Rocha Jr$b Valdemar C$4aut$4http://id.loc.gov/vocabulary/relators/aut 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910366588403321 996 $aCommunication Systems$92968392 997 $aUNINA