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Showing 2 results for Sexual Behavior
Volume 4, Issue 4 (12-2016)
Abstract
Aim: Nowadays, sexual behaviours of the youths have turned into a controversial issue all over the world due to widespread sexually transmitted infections (STIs), human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) and unwanted pregnancies. Regarding the increasing interactions of the youths with their friends and peers in Iranian society in the recent years, this research was conducted to explain the role of friends and peers to establish pre-marital sexual relationships among the youths.
Methods: This qualitative research was conducted on 30 single boys and girls aged 18-24 years, living in Isfahan, Iran, who had already started sexual activities and 17 other participants who were in a way involved in the experienced events by the youths. Data collection was done using semi-structured interviews. Data were analysed using conventional content analysis.
Findings: After analyzing the interviews, two sub-categories emerged including "being influenced by friends and peers" and "exchanging sexual information and contents", which were entitled “The effects of youths, interactions with friends and peers” as the main category.
Conclusion: Considering the important role of friends and peers in shaping pre-marital sexual relationships among the youths, providing them with comprehensive educational programs about STIs, HIV/AIDS, and sexual health protection through peer-based educational approach is necessary.
Y. Keivany, S.s. Mortazavi , O. Farhadian ,
Volume 7, Issue 2 (6-2018)
Abstract
Aims: King Nase fish (Chondrostoma regium) is a benthopelagic species that lives in stagnant and current water with a temperature range of 3-21°C and in the middle and upper parts of the river. The aim of this study was to evaluate the reproductive characteristics of King Nase fish.
Materials and Methods: In this experimental study, 335 fish were randomly caught and transferred to the laboratory after anesthetization and fixation for biometric measurements and dissections. The data were analyzed by one-way analysis of variance (ANOVA), Duncan's multiple range test (MRT), and unpaired T-test and SPSS 19 software.
Findings: The fork length and weight changes in male and female fish in all age groups, except for 1 and 2 year in females, showed a significant difference. There was a significant correlation between fork length, weight, and age of fish with its fecundity (r2=0.6922; r2=0.6852; r2=0.7284). Age groups of the males and females were 1 to 5 and 1 to 6 years, respectively. The sex ratio of male to female was 1:1.3. The oocyte diameter significantly increased from April to June and decreased in July and August. Changes in oocyte diameter corresponded to gonadosomatic index. The highest gonadosomatic index in males and females was in April and June, respectively, and varied with other months (p<0.05). The mean of this index was significantly higher in females than in males. The hepatosomatic index showed a significant difference during the months of the year (p<0.05). The spawning season was from late March to June.
Conclusion: The spawning season of King Nase fish is from late March to June and has a group simultaneous spawning pattern.
