Browsing by Author "Ayalew, Tesfaye"
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Item Child prostitution in Bahir Dar(Addis Ababa University, 1998-12) Ayalew, Tesfaye; Berhane, Yemane(PhD)In Ethiopia, very little is known about prostitution In general and about child prostitution in particular. The purpose of this research is to determine the magnitude of child prostitution and to identify factors associated with and problems of child prostitution. A cross-sectional study design was utili zed. Data were collected using structured questionnaire. Data entry and analysis was done using Epi Info version 6 stati stical software. A total of 650 commercial sex workers were interviewed. Eighty eight (13.5%) were below the age of 18 years at the time of data collection and 268(41.2%) at the time of joining prostitution. Poverty, disagreement with family and peer influence were the major reasons reported for prostitution. Child prostitutes were more likely to have STDs than adult prostitutes [OR= 1. 68; (95% C.l.) 0.95,2.96]. Condom use was poor among child prostitutes compared LO adult prostitutes [OR=1.67; (95%C.I.) 0.97,2.87]. Child prostitutes were iikely to be victim of physical violence [OR= 1.93; (95% C.l.) l.l 8, 3.15] and sexual violence [OR=2.20; (95% C.l.) 1.36,3.35] compared to adult prostitutes. More child prostitutes observed having the ambition to rejoin their family. It is recommended that strategies need to be developed to rescue child prostitutes from on-job violence, to minimize entry in prostitution and to establish a rehabilitation program for those interested to discontinue prostitution. Further study is required to more deeply understand the cause and effect of child prostitutionItem Current-Voltage Characterstics and Impedance Spectroscopy of Poly (3-(4'-(1/1, 4/1), 7/1-Trioxaoctyl) Phenyl) Thiophene) (PEOPT)(Addis Ababa University, 2000-06) Ayalew, Tesfaye; Workalemahu, Bantikassegn (PhD)This thesis is based on the study of the electronic properties of PEOPT in the form of AI/PEOPTIITO sandwich structure. An interface between aluminum contacts to PEOPT films were studied using complex impedance spectroscopy and current-voltage characteristic measurements. The current density-voltage curve is asymmetric and non-ohmic and shows Schottky barrier type rectification. The complex impedance spectra are semi-circles that show the existence of a region depleted of mobile charge carriers. An equivalent circuit consisting of one parallel RC circuit is envisaged as a model of the interface