Displaying publications 61 - 80 of 311 in total

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  1. Barmania S, Aljunid SM
    BMC Int Health Hum Rights, 2017 10 18;17(1):30.
    PMID: 29047415 DOI: 10.1186/s12914-017-0138-y
    BACKGROUND: Globally, one of the key groups considered to be at high risk of acquiring HIV are transgender women, often a marginalised group. In the Malaysian context there has been a scarcity of published research relating to transgender women, a sensitive issue in a Muslim majority country, where Islam plays an influential role in society. Furthermore, there has been a paucity of research relating to how such issues relate to HIV prevention in transgender women in Malaysia. Thus, the aim of this study is to explore the attitudes of stakeholders involved in HIV prevention policy in Malaysia towards transgender women, given the Islamic context.

    METHODS: In-depth interviews were undertaken with stakeholders involved in HIV prevention, Ministry of Health, Religious Leaders and People Living with HIV, including transgender women. Thirty five participants were recruited using purposive sampling from June to December 2013 within Kuala Lumpur and surrounding vicinities. Interviews were in person, audiotaped, transcribed verbatim and used a framework analysis.

    RESULTS: Five central themes emerged from the qualitative data; Perceptions of Transgender women and their place in Society; Reaching out to Transgender Women; Islamic doctrine; 'Cure', 'Correction' and finally, Stigma and Discrimination.

    DISCUSSION: Islamic rulings about transgenderism were often the justification given by participants chastising transgender women, whilst there were also more progressive attitudes and room for debate. Pervasive negative attitudes and stigma and discrimination created a climate where transgender women often felt more comfortable with non-governmental organisations.

    CONCLUSION: The situation of transgender women in Malaysia and HIV prevention is a highly sensitive and challenging environment for all stakeholders, given the Muslim context and current legal system. Despite this apparent impasse, there are practically achievable areas that can be improved upon to optimise HIV prevention services and the environment for transgender women in Malaysia.

    Matched MeSH terms: Sexual Behavior
  2. Wong LP
    BMC Public Health, 2012;12:865.
    PMID: 23057505 DOI: 10.1186/1471-2458-12-865
    BACKGROUND: The increasing trend of premarital sexual experience and unintended pregnancies in Malaysia warrants sustained and serious attention. The sensitivities of sex-related issues in a Muslim-majority country create various types of barriers to sexual and reproductive health information, support and practices. This study aims to gain understanding of knowledge, attitudes and behaviours of young women in Malaysia concerning reproductive, contraception and premarital sexual practices.
    METHODS: A cross-sectional study was performed, using an anonymous self-administered questionnaire carried out among 1695 female university students in a public university in Malaysia.
    RESULTS: Respondents had low scores for knowledge of reproduction and pregnancy (median=4, of maximum score 10), contraceptive uses (median=6, of maximum score 16) and contraceptive availability (median=3, of maximum score 13). The majority of women surveyed do not have liberal values in relation to premarital sexual behaviour (median=37, of maximum 40); higher scores on this scale corresponded to opposing premarital sex. The multivariate analyses showed that ethnic group was the strongest correlate of knowledge and attitude scores; being of Malay Muslim ethnicity was associated significantly with lower knowledge scores and premarital sex permissiveness. Other significant correlates were year of study, maternal occupational groups, level of religious faith, dating status and urban-rural localities. Level of premarital sex permissiveness was inversely correlated with reproduction and pregnancy knowledge score, and contraceptive knowledge scores.
    CONCLUSION: Reproductive health knowledge and attitudes were intricately linked to religious values and cultural norms differences surrounding sexual issues.
    Matched MeSH terms: Sexual Behavior/ethnology*
  3. Anwar M, Sulaiman SA, Ahmadi K, Khan TM
    BMC Public Health, 2010;10:47.
    PMID: 20113511 DOI: 10.1186/1471-2458-10-47
    BACKGROUND: Sexually transmitted Infections (STIs) rank among the most important health issues for the people especially the young adults worldwide. Young people tend to engage in sexual activity at younger ages in the past decade than in the 1970s, and 1980s. Knowledge is an essential precursor of sexual risk reduction. A cross-sectional study was conducted in Pulau Pinang, Malaysia, to produce the baseline information about school students' awareness and perception about sexually transmitted Infections (STIs) and their sexual activity to help establish control and education programmes.
    METHODS: Students from form 4 (aged between 15 to 16 years), form 5 (aged between 16 to 17 years) and form 6 (aged between 18 to 20 years) in their class rooms were approached and asked to complete self administered and anonymous pre-validated questionnaires. SPSS for windows version 13 was used to analyze the results statistically and results were presented in tabular form.
    RESULTS: Data was collected from 1139 students aged between 15 to 20 years, 10.6% of which claimed that they never heard about STIs. Sexual experience related significantly with gender, race, and education level. Approximately 12.6% claimed to have sexual experience of which 75.7% had their sexual debut at 15-19 years and 38.2% were having more than 3 partners. Sexual experience was found to be significantly associated with gender (p = 0.003), ethnicity (p = 0.001) and education level (p = 0.030). However, multiple partner behaviour was significantly associated only with gender (p = 0.010). Mean knowledge score was 11.60 +/- 8.781 and knowledge level was significantly associated with religion (p = 0.005) education level (p = 0.000), course stream (p = 0.000), socioeconomic class (p = 0.000) and sexual experience (p = 0.022).
    CONCLUSIONS: It was concluded that school students have moderate level of knowledge about STIs although they are sexually active. Interventions such as reinforcing the link between STIs and HIV/AIDS, assessing the current status of sexuality education in schools and arranging public talks and seminars focusing on STIs prevention education are needed to improve their awareness.
    Matched MeSH terms: Sexual Behavior/statistics & numerical data*
  4. Ong C, Tan RKJ, Le D, Tan A, Tyler A, Tan C, et al.
    BMC Public Health, 2021 05 22;21(1):971.
    PMID: 34022843 DOI: 10.1186/s12889-021-10992-6
    BACKGROUND: Gay, bisexual and queer (GBQ) men are frequently subjected to minority stressors that have negative impacts on their health. Milestones that include the acceptance and disclosure of sexual identity amongst GBQ men are hence key instruments in understanding the prevalence of internalised homophobia and predicting health outcomes. As such, this work takes a novel approach to deduce the correlates of delayed acceptance of sexual orientation in young GBQ men as a measure of internalised homophobia through retrospective self-reporting and age-based analysis.

    METHODS: Participants were recruited as part of a cohort study exploring the syndemic risks associated with HIV acquisition among young GBQ men in Singapore. We examined their levels of internalised, perceived, experienced homophobia, as well as their health behaviours and suicidal tendencies. Two separate variables were also self-reported by the participants - the age of questioning of sexual orientation and the age of acceptance of sexual orientation. We subsequently recoded a new variable, delayed acceptance of sexual orientation, by taking the difference between these two variables, regressing it as an independent and dependent variable to deduce its psychosocial correlates, as well as its association with other measured instruments of health.

    RESULTS: As a dependent variable, delayed acceptance of sexual orientation is positively associated with an increase of age and internalised homophobia, while being negatively associated with reporting as being gay, compared to being bisexual or queer. As an independent variable, delayed acceptance of sexual orientation was associated with a delayed age of coming out to siblings and parents, suicide ideation, historical use of substances including smoking tobacco cigarettes and consuming marijuana, as well as reporting higher levels of experienced, internalised and perceived homophobia.

    CONCLUSION: Greater levels of early intervention and efforts are required to reduce the heightened experience of minority stress resulting from communal and institutional hostilities. Areas of improvement may include community-based counselling and psychological support for GBQ men, while not forsaking greater education of the social and healthcare sectors. Most importantly, disrupting the stigma narrative of a GBQ 'lifestyle' is paramount in establishing an accepting social environment that reduces the health disparity faced by GBQ men.

    Matched MeSH terms: Sexual Behavior
  5. Tan RKJ, O'Hara CA, Koh WL, Le D, Tan A, Tyler A, et al.
    BMC Public Health, 2021 05 31;21(1):1026.
    PMID: 34059021 DOI: 10.1186/s12889-021-11056-5
    BACKGROUND: Young gay, bisexual, and other men who have sex with men (YMSM) are vulnerable to the risks associated with sexualized substance use. This is a novel study in Singapore that aims to classify patterns of sexualized substance use among YMSM, and investigate its association with sexual and mental health outcomes.

    METHODS: In this cross-sectional study among 570 YMSM aged 18 to 25 years old, latent class analysis (LCA) conducted to identify classes with similar patterns of sexualized substance use, across which measures of inconsistent condom use, recent STI diagnoses, past suicide ideation and depression severity were compared.

    RESULTS: LCA revealed three classes of YMSM based on types of substances ever used in sexualized contexts, which we labelled as 'substance-naive', 'substance-novice', and 'chemsex'. Substance-naive participants (n = 404) had only ever used alcohol, while substance-novice participants (n = 143) were primarily amyl nitrite users with a small proportion who reported using chemsex-related drugs. Chemsex participants (n = 23) comprised individuals who had mostly used such drugs. Those in the chemsex group were more likely to report recent unprotected anal sex with casual partners (aPR = 3.28, 95%CI [1.85, 5.79]), depression severity (aβ = 3.69, 95%CI [0.87, 6.51]) and a history of suicide ideation (aPR = 1.64, 95%CI [1.33, 2.03]).

    CONCLUSIONS: Findings of this study highlight how the use of varying substances in sexualized contexts may be classified and characterized by different sexual and mental health outcomes. Health promotion efforts should be differentiated accordingly to address the risks associated with sexualized substance use among YMSM.

    Matched MeSH terms: Sexual Behavior
  6. Muhammad NA, Shamsuddin K, Mohd Amin R, Omar K, Thurasamy R
    BMC Public Health, 2017 02 02;17(1):157.
    PMID: 28152993 DOI: 10.1186/s12889-016-3949-1
    BACKGROUND: From the Theory of Planned Behaviour perspective, sexual intention is determined by a permissive attitude, perception of social norms and perceived self-efficacy in performing sexual activity. The aim of this study was to develop and validate the Youth Sexual Intention Questionnaire (YSI-Q), which was designed to measure sexual intention among youths in Malaysia.

    METHODS: A total of 25 items were developed based on literature reviews encompassing four main constructs: sexual intention, attitude, social norms and self-efficacy. The YSI-Q then underwent a validation process that included content and face validity, exploratory factor analysis (EFA), reliability analysis, and confirmatory factor analysis (CFA). This study was conducted on unmarried youths aged 18 to 22 years who were studying in colleges around Klang Valley, Malaysia.

    RESULTS: EFA supported the four factor structure, but five items were removed due to incorrect placement or low factor loading (<0.60). Internal reliability using Cronbach's alpha ranged between 0.89 and 0.94. The CFA further confirmed the construct, convergent and discriminant validity of the YSI-Q with χ 2 = 392.43, df = 164, p sexual intention (five items), attitude (five items), social norms (six items) and self-efficacy (four items) of practicing sexual activity. YSI-Q was shown to be a reliable and valid tool to be used among Malaysian youths.

    Matched MeSH terms: Sexual Behavior/psychology*; Sexual Behavior/statistics & numerical data*
  7. Zin NM, Ishak I, Manoharan K
    BMC Public Health, 2019 Jun 13;19(Suppl 4):639.
    PMID: 31196029 DOI: 10.1186/s12889-019-6863-5
    BACKGROUND: Previous studies show that there is a changing trend of sexual and reproductive behaviour among youth and this requires more attention and awareness especially on sexually transmitted diseases (STD). This study was carried out to evaluate the knowledge, attitude and practice of sexually transmitted diseases among selected inmates of women shelter homes.

    METHODS: A cross-sectional study was carried out by involving 60 participants whom aged in between 13 to 25 years old. The questionnaires were developed in 'Bahasa Melayu' and it has been anonymous guided questionnaires.

    RESULTS: The result showed that the mean age of the participants was 17.9 years old and most of the participants have completed secondary school (91.7%). Overall, the level of knowledge of participants on STDs were classified into three groups; 'high knowledge' (33.3%), 'medium knowledge' (35.0%) and 'low knowledge' (31.7%). The majority have heard of HIV/AIDS (95%) but with respect to other STDs was less well known. Whereas, the mean score for attitude was 23.1 out total 25. Their knowledge level was not influenced by their age (p = 0.61) and socio-economic status (p = 0.85). However, their attitude was influenced by their age (p sexuality contradicts it especially on contraceptive use and pre-marital sex.
    Matched MeSH terms: Sexual Behavior/psychology
  8. Barmania S, Aljunid SM
    BMC Public Health, 2016 07 07;16:524.
    PMID: 27387326 DOI: 10.1186/s12889-016-3247-y
    BACKGROUND: Malaysia is a multicultural society, predominantly composed of a Muslim majority population, where Islam is influential. Malaysia has a concentrated HIV epidemic amongst high risk groups, such as, Intravenous Drug Users (IVDU), sex workers, transgender women and Men who have sex with Men (MSM). The objective of this study is to understand how Islam shapes HIV prevention strategies in Malaysia by interviewing the three key stakeholder groups identified as being influential, namely the Ministry of Health, Religious leaders and People living with HIV.

    METHODS: Thirty-Five in depth semi structured interviews were undertaken with religious leaders, Ministry of Health and People living with HIV in the last half of 2013 using purposive sampling. Interviews adhered to a topic guide, were audiotaped, and transcribed verbatim and analyzed using a framework analysis.

    RESULTS: Themes including the importance of Islam to health, stakeholder relationships and opinions on HIV prevention emerged. Islam was seen to play a pivotal role in shaping strategies relating to HIV prevention in Malaysia both directly and indirectly. Stakeholders often held different approaches to HIV prevention, which had to be sensitively considered, with some favouring promotion of Islamic principles, whilst others steering towards a more public health centred approach.

    CONCLUSIONS: The study suggests that Islam indeed plays an important role in shaping health policies and strategies related to HIV prevention in Malaysia. Certainly, stakeholders do hold differing viewpoints, such as stances of what constitutes the right approach to HIV prevention. However there are also areas of broad consensus, such as the importance in Islamic tradition to prevent harm and disease, which can be crafted into existing and future HIV prevention strategies in Malaysia, as well as the wider Muslim world.

    Matched MeSH terms: Sexual Behavior*
  9. Farid ND, Rus SC, Dahlui M, Al-Sadat N, Aziz NA
    BMC Public Health, 2014;14 Suppl 3(Suppl 3):S9.
    PMID: 25437631 DOI: 10.1186/1471-2458-14-S3-S9
    BACKGROUND: In welfare institutions, it is essential to address the health-related needs of adolescent populations who often engage in sexual activities. This study examines the association between individual and interpersonal factors concerning sexual risk behaviour (SRB) among adolescents in welfare institutions in Malaysia.

    METHODS: Data were derived from a cross-sectional study of 1082 adolescents in 22 welfare institutions located across Peninsular Malaysia in 2009. Using supervised self-administered questionnaires, adolescents were asked to assess their self-esteem and to complete questions on pubertal onset, substance use, family structure, family connectedness, parental monitoring, and peer pressure. SRB was measured through scoring of five items: sexual initiation, age of sexual debut, number of sexual partners, condom use, and sex with high-risk partners. Multivariate logistic regression analysis was used to examine the various predictors of sexual risk behaviour.

    RESULTS: The study showed that 55.1% (95%CI = 52.0-58.2) of the total sample was observed to practice sexual risk behaviours. Smoking was the strongest predictor of SRB among male adolescents (OR = 10.3, 95%CI = 1.25-83.9). Among females, high family connectedness (OR = 3.13, 95%CI = 1.64-5.95) seemed to predict the behaviour.

    CONCLUSION: There were clear gender differences in predicting SRB. Thus, a gender-specific sexual and reproductive health intervention for institutionalised adolescents is recommended.

    Matched MeSH terms: Sexual Behavior/psychology*; Sexual Behavior/statistics & numerical data
  10. Jaroof S, Cailhol J
    BMC Public Health, 2024 Apr 17;24(1):1075.
    PMID: 38632597 DOI: 10.1186/s12889-024-18479-w
    BACKGROUND: This article is a continuation of the Musafir study published in 2020. Following the results of this study, we designed an educational website with Urdu-speaking volunteers, using a participatory approach. This type of approach aimed at bringing out situated knowledge around taboo/sensitive topics such as sexual and mental health, by considering the cultural, religious, economic, family, and social background of young Urdu-speaking men. This approach allowed us to build culturally-appropriate content matching the needs of targeted population. We report here the lessons learned from our approach.

    METHODS: Urdu-speaking volunteers were recruited via outreach strategies, for participation in focus groups. Four focus group discussions were conducted on three distinct themes: 1/ Sexual Health Promotion, 2/Hepatitis and sexually transmitted infections, and 3/ Mental Health. The focus groups were recorded, with the written consent of the users. Thematic analysis was conducted after transcription of the focus-group discussion.

    RESULTS: We succeeded in mobilizing 4 Pakistani users, aged between 19 and 30 years. The group dynamics was very rich and allowed us to highlight numerous social aspects related to the importance of the group belonging, the family, and others points of view on these topics. Many Urdu vocabulary had to be redefined and revealed the extent of the pre-existing taboo.

    CONCLUSIONS: Notwithstanding the extreme difficulty of mobilizing an invisible target population on a sensitive topic such as sexual and mental health, our experience highlights the need to consider the knowledge of the people concerned. The participative approach allowed us to fit the content of our medium to, for instance: the collectivist type of society of the target population; the level of literacy in their mother tongue; and to the embodiment of some taboo in their vocabulary. Although time and energy consuming, our approach seems relevant and could be replicated to other communities.

    Matched MeSH terms: Sexual Behavior
  11. Ariffin F, Chin KL, Ng C, Miskan M, Lee VK, Isa MR
    BMC Res Notes, 2015;8:248.
    PMID: 26082003 DOI: 10.1186/s13104-015-1220-y
    BACKGROUND: Sexual history training during undergraduate education is essential for preparing future doctors to handle patients' sexual health concerns. The purpose of this study was to assess the attitudes and perceptions of final-year medical students in Malaysia toward sexual history taking and the training they receive from their medical schools.
    METHODS: The study used a cross-sectional survey of 379 final-year medical students from three medical schools in Malaysia. Students were asked to rate their attitudes and perceptions regarding training on taking sexual histories using a newly developed questionnaire with good internal consistency (Cronbach's alpha = 0.73). Ethics approval was obtained from the relevant medical schools, and the statistical analysis was conducted using SPSS, Version 20.0.
    RESULTS: The mean age of participants was 23.58 ± 0.65 SD. Participants reported high interest in sexual health and felt it was important for doctors to know how to take a sexual history (95%). Among the participants, only half felt comfortable in taking sexual histories from patients. The participants identified cultural and religious differences between the doctor and the patient as a potential barrier for discussing sexual health. Participants were aware of their own practice and ability, as well as their limitations, in taking sexual histories. Less than half (46%) felt that the training they received adequately prepared them to take sexual histories.
    CONCLUSIONS: This study identified gaps in sexual health training among medical schools in Malaysia. The delivery of sexual health education program should incorporate confidence building and to make students feel comfortable to take sexual histories from patients. The barrier caused by differences in culture or religion between a doctor and a patient may be overcome through cross cultural and cultural competency training. This is important for multi-faith, multi cultural societies such as Malaysia and other similar countries.
    Matched MeSH terms: Sexual Behavior/psychology*; Sexual Behavior/ethics
  12. Otegbayo BE, Omar N, Danaee M, Mohajer S, Aghamohamadi N
    BMC Womens Health, 2023 Jul 21;23(1):383.
    PMID: 37480050 DOI: 10.1186/s12905-023-02520-y
    BACKGROUND: Teenage pregnancies continue to disrupt teenage girls' academic development. As a result, teenage mothers are at risk of unemployment, maternal death, and poverty. Previous research, however, has shown that both individual and environmental factors can have a significant impact on the prevalence of adolescent pregnancy. However, there has been little rigorous research on the impact of these factors on pregnant students' academic performance.

    OBJECTIVES: The purpose of this study was to determine the relationship between environmental (neighbourhood) and individuals (sexual attitudes, peer attachment) factors. It also examined the influence of individual factors on the academic performance of pregnant teens.

    METHODS: The study included a cross-sectional study of 400 pregnant adolescent students aged 15-19 years. The target groups were drawn from three major cities in Nigeria. Respondents were identified through targeted snowballing. Pregnant participants were a combination of married and unmarried girls attending school from home. Data were collected using a structured and self-completed questionnaire. Thus, frequency, mean and standard deviation were used for descriptive analysis. Pearson correlation analysis was applied to show the relationship between variables.

    RESULTS: The study found that neighbourhood (r=-.125, p = .12) had a negative and significant relationship with peer attachment. However, there was no significant evidence of a relationship between sexual attitudes and neighbourhood (r=-.040, p = .422). There was, however, a significant relationship between sexual attitudes and academic performance (r = .236, p = .000). There was also a relationship between peer attachment and academic performance (r=-.401, p = 

    Matched MeSH terms: Sexual Behavior
  13. Pang NT, Masiran R
    BMJ Case Rep, 2017 Mar 08;2017.
    PMID: 28275020 DOI: 10.1136/bcr-2016-218738
    A young man presented with high libido for 3 years, associated with preoccupation with sexual thoughts combined with his pursuit of pornographic materials. He had strong psychological cravings for and had spent large amount of money on sex, resulting in a dispute with his family. There were no mood or psychotic symptoms. Medical history revealed recent diagnosis of gonococcal urethritis. Cognitive assessment showed subtle deficiencies in reasoning and executive functions. There was occasional use of alcohol. Sexual addiction with comorbid mild intellectual disability was diagnosed, and pharmacological as well as psychological management were started.
    Matched MeSH terms: Sexual Behavior/psychology*
  14. Marret MJ, Choo WY
    BMJ Open, 2017 06 30;7(6):e014959.
    PMID: 28667209 DOI: 10.1136/bmjopen-2016-014959
    OBJECTIVE: To determine the prevalence of online interpersonal victimisation and its association with patterns of social networking site (SNS) use, offline victimisation, offline perpetration and parental conflict among Malaysian adolescents using SNS.

    METHODS: A cross-sectional study of students from randomly selected public secondary schools in the state of Negeri Sembilan was conducted using an anonymous self-administered questionnaire. The questionnaire examined patterns of SNS use and included measures of online victimisation, online perpetration, offline victimisation and parental conflict. A response rate of 91% from a total of 1634 yielded a sample of 1487 students between 15 years and 16 years of age.

    RESULTS: Ninety-two per cent of respondents had used at least one SNS. More than half of SNS users (52.2%) reported experiences of online victimisation over the past 12 months. Boys were significantly more likely to experience online harassment compared with girls (52.2% vs 43.3%, p<0.001). There were no significant gender differences in experiences of unwanted sexual solicitation. Adolescents who engaged in perpetration behaviours online had almost six times higher odds of reporting frequent online victimisation compared with online behaviours involving personal disclosure. There was a significant dose-response relationship between engagement in multiple types of online behaviour and the risk of frequent online victimisation. Both online and offline perpetrations were associated with an increased risk of victimisation. Those who were victimised offline or experienced parental conflict were twice as likely to report online victimisation.

    CONCLUSION: Interventions to prevent online electronic aggression should target perpetration behaviour both online and offline. Youth should be equipped with skills in communication and decision-making in relationships that can be applied across a spectrum of contexts both online and offline.
    Matched MeSH terms: Sexual Behavior/statistics & numerical data
  15. Lasimbang HB, Tong WT, Low WY
    PMID: 26433811 DOI: 10.1016/j.bpobgyn.2015.08.015
    Sabah, located in Southeast Asia, hosts the highest number of non-Malaysian citizens (27.7%), predominantly the Indonesian and Filipino migrants in comparison to other states in Malaysia. Sabah has inadequate data on migrants' sexual and reproductive health and rights (SRHRs). Various migrant-related policies and laws are present, but they do not offer full protection and rights to legal migrants in terms of their SRHRs. The aim of the laws and policies appears to be controlling the migrants from having any negative impact on the locals, rather than protecting migrants' health and rights. This affected their rights to marriage, having children, increase their vulnerabilities to labour trafficking and sexual abuse and access to health-care services. Female migrant workers and undocumented migrants form the most vulnerable subgroups of migrants. This narrative review highlights the status of SRHRs of migrants in Sabah and the migrant-related Malaysian laws and policies affecting their SRHRs.
    Matched MeSH terms: Sexual Behavior
  16. Tamadoni Jahromi S, Othman AS, Rosazlina R
    Biochem Genet, 2018 Aug 12.
    PMID: 30099639 DOI: 10.1007/s10528-018-9884-3
    There are two morphotypes of Penaeus semisulcatus described hitherto in the Persian Gulf, namely the banded and non-banded antennae morphotypes. In this study, we used morphometric measurements and two mitochondrial genes (16S rRNA and cytochrome oxidase subunit I-COI) to assess relationships between the two morphotypes of P. semisulcatus. Out of 25 morphological characters examined, 10 characters were found significantly different between the two morphotypes when tested against separate sexes or both sexes combined. Results from the 16S rRNA and COI sequence analysis of two morphotypes of P. semisulcatus morphotype showed up to 6% and 17% sequence divergence, respectively. The 16S rDNA and COI sequences of the non-banding morphotype were not only very different to those of the banding morphotype but was also very different to all other Penaeus species (i.e., P. monodon, P. merguiensis, and P. indicus) included in the study. Both parsimony and Neighbor-Joining trees based on 16S rDNA and COI sequences provide similar tree topology that clearly separated the two morphotypes into two distinct groups. Based on these findings, we propose the two morphotypes of P. semisulcatus to be relegated as two sympatric species.
    Matched MeSH terms: Sexual Behavior
  17. Ang HH, Sim MK
    Biol Pharm Bull, 1998 Feb;21(2):153-5.
    PMID: 9514610 DOI: 10.1248/bpb.21.153
    The effects of Eurycoma longifolia JACK were studied on the orientation activities of sexually experienced male rats towards receptive females (mounting, licking, anogenital sniffing), environment (exploration, raring, climbing), themselves (genital grooming, non-genital grooming) and mobility (unrestricted, restricted) after dosing them with 200, 400 and 800 mg/kg body weight twice daily for 10 d prior to the test. The results showed that E. longifolia JACK modified the orientation activities of the treated male rats in that they significantly displayed more frequent and vigorous mounting, licking and anogenital sniffing towards the receptive females, and it further intensified self orientation as indicated by the increased grooming of the genitals compared to the controls (p<0.05). In addition, rats treated with 800 mg/kg of methanol, water and butanol extracts of E. longifolia JACK continued to show confinement to a particular area of the cage (around the female), thus showing restriction in movement as compared to the controls (p<0.05). However, the treated males possessed a lack of interest in the external environment as indicated by a reduction in exploration, raring and climbing on the cage wall. Hence, the present study further supports the folk use of E. longifolia JACK as an aphrodisiac.
    Matched MeSH terms: Sexual Behavior, Animal/drug effects*
  18. Swami V, Diwell R, McCreary DR
    Body Image, 2014 Sep;11(4):543-6.
    PMID: 25201097 DOI: 10.1016/j.bodyim.2014.08.008
    Previous studies have documented associations between sexuality and body image, but the directionality of this association is unclear among men. This study examined whether men's drive for muscularity can be considered a correlate of their sexuality. A community-based sample of 292 heterosexual men from London, UK, completed a survey consisting of measures of drive for muscularity, sociosexuality, sexual assertiveness, sexual esteem, and sexual sensation seeking. A multiple regression analysis showed that greater drive for muscularity was predicted by more unrestricted sociosexuality (i.e., a greater proclivity for short-term, transient relationships), greater sexual sensation seeking, and greater sexual assertiveness, once the effects of participant age and body mass index had been accounted for. Possible avenues for intervention based on a sex-positive approach are discussed in conclusion.
    Matched MeSH terms: Sexual Behavior/psychology*; Sexual Behavior/statistics & numerical data
  19. Stewart-Williams S, Chang CYM, Wong XL, Blackburn JD, Thomas AG
    Br J Psychol, 2021 May;112(2):389-411.
    PMID: 32701171 DOI: 10.1111/bjop.12463
    Two studies investigated (1) how people react to research describing a sex difference, depending on whether that difference favours males or females, and (2) how accurately people can predict how the average man and woman will react. In Study 1, Western participants (N = 492) viewed a fictional popular-science article describing either a male-favouring or a female-favouring sex difference (i.e., men/women draw better; women/men lie more). Both sexes reacted less positively to the male-favouring differences, judging the findings to be less important, less credible, and more offensive, harmful, and upsetting. Participants predicted that the average man and woman would react more positively to sex differences favouring their own sex. This was true of the average woman, although the level of own-sex favouritism was lower than participants predicted. It was not true, however, of the average man, who - like the average woman - reacted more positively to the female-favouring differences. Study 2 replicated these findings in a Southeast Asian sample (N = 336). Our results are consistent with the idea that both sexes are more protective of women than men, but that both exaggerate the level of same-sex favouritism within each sex - a misconception that could potentially harm relations between the sexes.
    Matched MeSH terms: Sexual Behavior*
  20. Wee SL, Abdul Munir MZ, Hee AKW
    Bull. Entomol. Res., 2018 Feb;108(1):116-124.
    PMID: 28625191 DOI: 10.1017/S0007485317000554
    The Artocarpus fruit fly, Bactrocera umbrosa (Fabricius) (Diptera: Tephritidae), is an oligophagous fruit pest infesting Moraceae fruits, including jackfruit (Artocarpus heterophyllus Lamarck), a fruit commodity of high value in Malaysia. The scarcity of fundamental biological, physiological and ecological information on this pest, particularly in relation to behavioural response to phytochemical lures, which are instrumental to the success of many area-wide fruit fly control and management programmes, underpins the need for studies on this much-underrated pest. The positive response of B. umbrosa males to methyl eugenol (ME), a highly potent phytochemical lure, which attracts mainly males of many Bactrocera species, was shown to increase with increasing age. As early as 7 days after emergence (DAE), ca. 22% of males had responded to ME and over 50% by 10 DAE, despite no occurrence of matings (i.e. the males were still sexually immature). Male attraction to ME peaked from 10 to 27 DAE, which corresponded with the flies' attainment of sexual maturity. In wind-tunnel assays during the dusk courtship period, ME-fed males exhibited earlier calling activity and attracted a significantly higher percentage of virgin females compared with ME-deprived males. ME-fed males enjoyed a higher mating success than ME-deprived males at 1-day post ME feeding in semi-field assays. ME consumption also promotes aggregation behaviour in B. umbrosa males, as demonstrated in wind-tunnel and semi-field assays. We suggest that ME plays a prominent role in promoting sexual communication and enhancing mating performance of the Artocarpus fruit fly, a finding that is congruent with previous reports on the consequences of ME acquisition by other economically important Bactrocera species.
    Matched MeSH terms: Sexual Behavior, Animal/drug effects*
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