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The Once and Future Andromeda Stream
The interaction between an accreting satellite and the Andromeda galaxy has been studied using an N -body simulation to investigate the self-gravitating response of the disk, the bulge, and the dark matter halo to an accreting satellite. Our simulation shows that the “giant stream” is the tidal debris of the infalling satellite. The debris also produces diffuse shells on the east and the west s...
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Onionsites are Internet sites accessed via protocols offering security protections beyond those provided by the usual protocols and infrastructure of the Internet, such as confidentiality of address lookup, and that significantly strengthen commonly offered protections; for example, their self-authenticating addresses preclude the kinds of certificate hijacks that have occurred against register...
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Many have argued that anthropology, as a four-field discipline, lacks intellectual coherence. Recent developments in the field of biotechnology and the possibility of producing chimeras with recognizable human characteristics make it necessary to think in terms of a new kind of “old” four-field holism. The production of a human/nonhuman chimera raises theoretical questions about the nature of t...
متن کاملOnce and Future Copyright
Individuals and nonprofit institutions may reproduce and distribute copies of this Article in any format, at or below cost, for educational purposes, so long as each copy identifies the author, provides a citation to the Notre Dame Law Review, and includes this provision and copyright notice.for their willingness to trade their valuable insights for food; to Claudia Brand for translation help; ...
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The purpose of this chapter is to update the paper ”Back to the Future – The Story of Squeak, a Practical Smalltalk Written in Itself” (hereinafter simply ”BTF”). As such, the bulk of the text follows the structure of that paper, with comments and new data presented in a parallel sequence. However, a mere update of Squeak’s features and performance would not give a sense of the various forces, ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2008
ISSN: 0004-637X,1538-4357
DOI: 10.1086/529140