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Structure exists in sequences ranging from human language and music to the genetic information encoded in our DNA. This thesis shows how that structure can be discovered automatically and made explicit. Rather than examining the meaning of the individual symbols in the sequence, structure is detected in the way that certain combinations of symbols recur. In speech and text, these repetitions fo...
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Recent evidence indicates an overall retreat from marriage. Cohabitation has contributed to this trend as cohabiting unions are increasingly not resulting in marriage. As an initial step in understanding why some cohabiting couples do not marry, we examine factors associated with cohabitors= marriage expectations. We focus particularly on the effects of socioeconomic status and race/ethnicity b...
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Counterion condensation is a basic feature of 2D electrostatics exhibited by highly charged rodlike polymers such as DNA. In the framework of the Poisson Boltzmann equation with salt, we show that such a polymer of radius a attracts a condensate of thickness RM=A(axi)1/2 where xi is the Debye length and A depends weakly on the polymer charge density q0. To leading order in 1/ln(xi/a), we derive...
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ژورنال
عنوان ژورنال: PS: Political Science & Politics
سال: 1987
ISSN: 1049-0965,1537-5935
DOI: 10.1017/s1049096500027475