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1.
Rapid Commun Mass Spectrom ; 23(3): 349-56, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19125413

RESUMEN

Oligomeric peroxides formed in the synthesis of triacetone triperoxide (TATP) have been analyzed by mass spectrometry utilizing both electrospray ionization (ESI) and chemical ionization (CI) to form sodiated adducts (by ESI) and ammonium adducts (by CI and ESI). Tandem mass spectrometry and deuterium isotopic labeling experiments have been used to elucidate the collision-induced dissociation (CID) mechanisms for the adducts. The CID mechanisms differ for the sodium and ammonium adducts and vary with the size of the oligoperoxide. The sodium adducts of the oligoperoxides, H[OOC(CH(3))(2)](n)OOH, do not cyclize under CID, whereas the ammonium adducts of the smaller oligoperoides (n < 6) do form the cyclic peroxides under CID. Larger oligoperoxide adducts with both sodium and ammonium undergo dissociation through cleavage of the backbone under CID to form acyl- and hydroperoxy-terminated oligomers of the general form CH(3)C(O)[OOC(CH(3))(2)](x)OOH, where x is an integer less than the original oligoperoxide degree of oligomerization. The oligoperoxide distribution is shown to vary batch-to-batch in the synthesis of TATP and the post-blast distribution differs slightly from the distribution in the uninitiated material. The oligoperoxides are shown to be decomposed under gentle heating.

2.
J Sex Res ; 45(1): 27-35, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18321028

RESUMEN

The use of deception in association with sexual encounters may take many forms, ranging from outright lies to more subtle, evasive manipulations. To address such deceptions, a behavior-based sexual deception scale was developed utilizing social exchange theory. Participants were 267 individuals associated with two large universities who were surveyed regarding different aspects of their sexual deceptive behaviors. In addition, items addressing sexually related behaviors and attitudes were assessed for validation purposes. Principal components analysis identified three components of sexual deception, labeled Blatant Lying, Self-Serving, and Avoiding Confrontation. Confirmatory factor analysis verified the resulting structure, and promising validity was noted. In general, those using any of these deceptions reported more sexual partners and one-night stands. Those telling blatant lies to have sex were more likely to report greater needs for sex, while those using self-serving lies or having sex to avoid confrontation experienced greater worry about partner loss. Men were more likely to use blatant lies to have sex, while women were more likely to have sex to avoid confrontation. Results support sexual deception as an exchange process, with sex for pleasure and positive relationship outcomes acting as rewards, and unwanted sex and deception consequences as costs. Implications for health interventions and primary prevention applications are discussed.


Asunto(s)
Decepción , Relaciones Interpersonales , Conducta Sexual , Conducta Social , Encuestas y Cuestionarios , Adulto , Femenino , Humanos , Masculino , Reproducibilidad de los Resultados
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