An amperometric biosensor for hydrogen peroxide (H 2 O 2) was developed via an easy and effective enzyme immobilization method with the " sandwich " configuration: ferrocene-chitosan: HRP: chitosan-glyoxal using a glassy carbon electrode as the basic electrode. In order to prevent the loss of immobilized HRP under optimized conditions, the biosensor surface… (More)
OBJECTIVE To investigate the HIV incidence and its related factors among female sex workers (FSWs) in a high prevalence area where injection drug use is also widely documented. METHOD A cross-sectional study of 1642 female sex workers (FSWs) was conducted in Honghe Prefecture of Yunnan Province. Interviewed-questionnaires were administrated to collect… (More)
OBJECTIVES Determine the ability of the Cobas 4800 assay to detect high-risk human papillomavirus (HrHPV) and high-grade cervical lesions when using cervico-vaginal samples applied to liquid medium and solid media cards compared to a direct cervical sample. METHODS Two cervico-vaginal specimens (pseudo self-collected) were obtained from 319 women. One was… (More)
BACKGROUND Longitudinal studies of female sex workers (FSWs) are vulnerable to loss to follow-up (LTFU) due to this population's high mobility and low willingness to self-identify as FSWs. LTFU in cohort studies is a critical problem and may lead to bias in estimation of incidence and exposure-outcome associations. The aim of this study was to analyze LTFU… (More)
In the title compound, [PdBr(2)(C(20)H(17)N(3))(2)]·2CH(3)CN, the Pd atom, which lies on an inversion center, is four-coordinated in a square-planar geometry. The two imidazole rings are coplanar and nearly perpendicular to the plane formed by Pd, the coordinated imidazole C atom and one of the Br atoms, making a dihedral angle of 75.1 (2)°.