Displaying publications 321 - 340 of 1411 in total

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  1. Tsuboi M, Lim AC, Ooi BL, Yip MY, Chong VC, Ahnesjö I, et al.
    J Evol Biol, 2017 Jan;30(1):150-160.
    PMID: 27748990 DOI: 10.1111/jeb.12995
    Brain size varies greatly at all taxonomic levels. Feeding ecology, life history and sexual selection have been proposed as key components in generating contemporary diversity in brain size across vertebrates. Analyses of brain size evolution have, however, been limited to lineages where males predominantly compete for mating and females choose mates. Here, we present the first original data set of brain sizes in pipefishes and seahorses (Syngnathidae) a group in which intense female mating competition occurs in many species. After controlling for the effect of shared ancestry and overall body size, brain size was positively correlated with relative snout length. Moreover, we found that females, on average, had 4.3% heavier brains than males and that polyandrous species demonstrated more pronounced (11.7%) female-biased brain size dimorphism. Our results suggest that adaptations for feeding on mobile prey items and sexual selection in females are important factors in brain size evolution of pipefishes and seahorses. Most importantly, our study supports the idea that sexual selection plays a major role in brain size evolution, regardless of on which sex sexual selection acts stronger.
    Matched MeSH terms: Sex Characteristics
  2. NIK RUSELINDA YUSOFF, MADIHAH SHUKRI
    MyJurnal
    This study examined the predictive effect of self – esteem and perfectionism on eating disorders among university students. A total of 327 respondents (15.4% male and 84.6% female) participated in this research, recruited using simple random sampling method. Self – esteem was measured using Rosenberg Self-Esteem Scale, perfectionism was measured using Multidimensional Perfectionism Scale and eating disorder was measured using Eating Attitudes Test. There was a significant gender difference in eating disorders, t(376) = -2.909, p
    Matched MeSH terms: Sex Characteristics
  3. TUAN NOR ATIQAH SYAFIQAH TUAN ABD AZIZ, MADIHAH SHUKRI
    MyJurnal
    This study examined the relationship between body dissatisfaction and eating disorder of undergraduate students in University Malaysia Terengganu (UMT). Using stratified random sampling technique, data from 299 respondents was gathered. Body dissatisfaction was measured using Body Shape Questionnaire while eating disorders were assessed using Eating Attitudes Test. Descriptive statistics showed thatthe majority of the respondents reported no symptom of body dissatisfaction. With regard to eating disorders, respondents reported low levels of dieting, bulimia and oral control, indicating that an eating disorder in this sample was somewhat low. T-test analyses showed that there were no significant gender differences in body dissatisfaction as well as in eating disorders. However, there was evidence to suggest that female respondents had slightly higher level of eating disorder than males. Results of Pearsoncorrelations showed there was significant relationship between body dissatisfaction and total score of eating disorders, dieting, bulimia and oral control subtypes (r = .58, p
    Matched MeSH terms: Sex Characteristics
  4. Muhammad Zayyid M, Saidatul Saadah R, Adil AR, Rohela M, Jamaiah I
    Trop Biomed, 2010 Dec;27(3):442-6.
    PMID: 21399584 MyJurnal
    This is a survey of 120 children for scabies and head lice infestations in a welfare home in Pulau Pinang. Children from this welfare home (Rumah Kanak-Kanak Taman Bakti, Kepala Batas, Pulau Pinang) were randomly selected. Majority of them were Malays (72.5%) and the rest were Indians. The infestation rates were highest in the 10-12 years age group with 46% and 70% for scabies and head lice respectively. Head lice was more commonly seen in girls (65%) than boys (29%). Scabies was more commonly seen in boys (50%) than girls (16%). Overall prevalence rate for scabies was 31% and for head lice infestation was 49%.
    Matched MeSH terms: Sex Distribution
  5. Mariana A, Santhana Raj AS, Tan SN, Ho TM
    Trop Biomed, 2007 Dec;24(2):29-37.
    PMID: 18209705
    Many finer taxonomic characters of Blomia tropicalis are not distinctly visible under conventional light microscopy. Scanning electron micrographs of this mite are therefore presented in this paper for better appreciation of the inconspicuous features of the morphology of the species. The differences in morphology of male and female B. tropicalis are also briefly discussed.
    Matched MeSH terms: Sex Characteristics
  6. Liaquat S, Qayyum M, Ahmed H, Arfeen RZU, Celik F, Simsek S
    Trop Biomed, 2021 Jun 01;38(2):1-8.
    PMID: 33973567 DOI: 10.47665/tb.38.2.031
    Goat Warble Fly Infestation (GWFI) is also known as subcutaneous myiasis caused by Przhevalskiana silenus (Diptera: Oestridae). It is widely distributed in tropical and sub-tropical areas of the world. In goats, WFI is usually detected through conventional procedure which underestimated the infestation. The current study was designed to determine the serodiagonsis of GWFI (through IDEXX Hypodermosis serum antibody test) and also aimed to investigate its seroepizootiological profile in Pothwar region, Pakistan from 2013-14. The results showed that average seropositivity (ELISA kit) of GWFI was 18.5% whereas, it was 11% by using conventional procedure (Palpation method) depicting a significant difference (p<0.05). Higher seropositivity (30.8%) was observed in Jhelum district as compared to e Attock district (6%). The L1 larvae were found in September, while nodules start appearing in October to December and last until the end of February. The month wise peaks of optical density (OD) was higher in December which gradually decrease along with the end of winter season. The prevalence of GWFI revealed no significant difference among three host breeds (Jattal, Beetal and Tedy). According to the results, high infestation rate (28%) was observed in young animals of age group < 1 year as compared to old animals (> 2 years). Topographically, hilly areas (33%) provide favourable climatic conditions for the propagating of larval stages. Sex difference showed no significant difference. The seroprevalence varied significantly with respect to age, month, districts and topographical location. The current study proved that serologic diagnosis (commercial ELISA kit) as more sensitive and accurate for timely diagnosis of GWFI than traditional method. The information on the epizootiology of P. silenus in goats of Pothwar region would help in devising effective control strategies.
    Matched MeSH terms: Sex Characteristics
  7. Matsuda I, Stark DJ, Saldivar DAR, Tuuga A, Nathan SKSS, Goossens B, et al.
    Commun Biol, 2020 09 21;3(1):522.
    PMID: 32958853 DOI: 10.1038/s42003-020-01245-0
    The uniquely enlarged noses of male proboscis monkeys are prominent adornments, and a sexually selected male trait. A recent study showed significant correlations among nose, body, and testis sizes and clear associations between nose size and the number of females in a male's harem. However, to date, the analyses of other common male traits, i.e., canines, are lacking. Whereas male nose size had a positive correlation with body size, we unexpectedly found a negative correlation between body and canine sizes. We explain this by an interaction between sexual and natural selection. Larger noses in males may interfere with the use of canines, thereby reducing their effectiveness as weapons. Additionally, longer canines are opposed by natural selection because the larger gape it imposes upon its bearer reduces foraging efficiency, particularly in folivores. This unique case of decoupling of body and canine size reveals that large canines carry an ecological cost.
    Matched MeSH terms: Sex Characteristics
  8. Cong CW, Ling WS, Fitriana M
    J Child Adolesc Ment Health, 2020 12 22;32(2-3):131-140.
    PMID: 33345736 DOI: 10.2989/17280583.2020.1848852
    Background and aim: Adolescent suicide has become a central issue around the world, including in Malaysia, which needs attention. The current study investigated the mediating effect of coping strategy in the association between family functioning and suicidal ideation among adolescents in Kuala Lumpur, Malaysia. Method: A total of 852 school-attending adolescents aged 13-17 years were recruited by multistage cluster sampling. The relationships between all the study variables were analysed using Pearson's correlation. Moreover, the mediation model was tested using SPSS PROCESS macro, while sex differences in suicidal ideation were examined using independent samples t-test. Results: Results showed that family cohesion, family flexibility, and problem-focused coping negatively correlated with adolescents' suicidal ideation. Problem-focused coping also mediated the association between family flexibility and suicidal ideation. There was a significant difference in suicidal ideation for males and females. Conclusion: Family functioning and coping strategy are related to adolescents' suicidal ideation, while problem-focused coping plays a crucial role in the relationship between family flexibility and suicidal ideation.
    Matched MeSH terms: Sex Factors
  9. Chandrasekhar J, Kerkmeijer LS, Kalkman DN, Sartori S, Aquino MB, Woudstra P, et al.
    Catheter Cardiovasc Interv, 2021 04 01;97(5):797-804.
    PMID: 32198837 DOI: 10.1002/ccd.28853
    BACKGROUND: The COMBO drug eluting stent is a novel device with luminal endothelial progenitor cell capture technology for rapid homogeneous endothelialization.

    METHODS AND RESULTS: We examined for sex differences in 1-year outcomes after COMBO stenting from the COMBO collaboration, a pooled patient-level dataset from the MASCOT and REMEDEE multicenter registries. The primary endpoint was 1-year target lesion failure (TLF), composite of cardiac death, target vessel-myocardial infarction (TV-MI), or clinically driven target lesion revascularization (CD-TLR). Secondary outcomes included stent thrombosis (ST). Adjusted outcomes were assessed using Cox regression methods. The study included 861 (23.8%) women and 2,753 (76.2%) men. Women were older with higher prevalence of several comorbidities including diabetes mellitus. Risk of 1-year TLF was similar in both sexes (3.8% vs. 3.9%, HR 0.92, 95% CI 0.59-1.42, p = .70), without sex differences in the incidence of cardiac death (1.6% vs. 1.5%, p = .78), TV-MI (1.5% vs. 1.1%, p = .32), or CD-TLR (2.0% vs. 2.2%, p = .67). Definite or probable ST occurred in 0.4% women and 1.0% men (HR 0.26, 95% CI 0.06-1.11, p = .069).

    CONCLUSIONS: Despite greater clinical risks at baseline, women treated with COMBO stents had similarly low 1-year TLF and other ischemic outcomes compared to men.

    Matched MeSH terms: Sex Characteristics
  10. Azrizal-Wahid N, Sofian-Azirun M, Low VL
    Trop Biomed, 2019 Dec 01;36(4):810-821.
    PMID: 33597453
    Fleas are the common cause of skin disorders in cats. They are well-known for transmitting various pathogens to both cats and humans. Accordingly, this study was conducted to gain insights on the risk factors associated with flea infestation on cats. Flea combing conducted on 426 cats from four distinct regions in Peninsular Malaysia revealed a relatively high rate of flea infestation on 306 cats (71.83%). A total of 651 fleas were collected, all of them were identified as Ctenocephalides felis with the total intensity of 2.13 and abundance of 1.53. The sex ratio of fleas was female-biased at 2.5:1 (♀=464, ♂=187). Statistical analysis of the data revealed that flea infestation was significantly (P<0.05) associated with several risk factors including region, age, weight, status (stray, sheltered, pet), body condition, and hair length. Higher flea prevalence was also observed in female cats (77.99%), big-sized cats (91.76%), stray cats (84.94%), cats with clean body condition (73.35%), and cats with long hairs (78.38%) as compared to their contemporaries within the same comparison variables. The high infestation of fleas in this study is indicative of cats as a flea reservoir particularly C. felis. Thus the findings of this study and the knowledge gained on the risk factors can be used to develop and improve control measures and management of flea infestations.
    Matched MeSH terms: Sex Ratio
  11. Elklit, A., Ghazali, S.R
    MyJurnal
    Background: Most PTSD screening tools for children and adolescents have been validated in Western contexts which is not necessarily generalizable to non-western cultures. Therefore, the objective of this cross-sectional study was to determine the psychometric properties of the Child Posttraumatic Stress Disorder Reaction Index (CPTS-RI) within a Malaysian population. Methods: Eighty-five adolescents aged 13- to 14-years-old completed the CPTS-RI, Harvard Trauma Questionnaire (HTQ) and Hopkins Symptom Checklist scale (HSCL). Results: Results showed a good internal consistency for the overall scale (α =.92), for the subscale -re-experience, avoidance and arousal subscales (α = .89, α = .73, α = .56 respectively) and for different gender groups and ethnicity. CPTS-RI demonstrated good construct and divergent validity, and showed good concurrent validity with the use of HTQ and HSCL as the criterion measure. Conclusion: Findings suggest that CPTS-RI is a valid and reliable instrument to assess PTSD symptoms among Malaysian adolescents.
    Matched MeSH terms: Sex Characteristics
  12. Jaafar NRN, Bahar N, Ibrahim N, Wan Ismail WS, Baharudin A
    Curr Opin Psychiatry, 2017 Jul;30(4):260-267.
    PMID: 28426547 DOI: 10.1097/YCO.0000000000000336
    PURPOSE OF REVIEW: There are considerable gender differences in youth engaging in excessive internet use (EIU). This review provides updates based on the recent literature focusing on the EIU in young women to describe its implications including what it constitutes of, its correlates, sequelae and preventive and/or treatment strategies.

    RECENT FINDINGS: Definition of EIU and its conceptualization still requires refinement. Recent studies indicate a changing trend towards female predominance of EIU. Women also differ in their internet use compared with men regarding their preference in the internet content and online activities, motives of use and factors related to access to the internet, including the device, sociocultural restrictions, etc. The correlates and sequelae of EIU encompass psychological, physical, biological, family and social domains that could form the basis of identifying individuals at risk and strategizing treatment.

    SUMMARY: The findings indicate the need for standardization in definition and measures of EIU for better recognition of EIU and identification of its at-higher-risk females. Effective preventive and treatment measures are still limited by various methodology flaws outlined here.

    Matched MeSH terms: Sex Factors
  13. Pang T, Parasakthi N, Yap SF
    Med J Malaysia, 1979 Mar;33(3):243-6.
    PMID: 316496
    Matched MeSH terms: Sex Factors
  14. Mohd-Karim MI, Sulaiman AR, Munajat I, Syurahbil AH
    Malays Orthop J, 2015 Jul;9(2):9-12.
    PMID: 28435602 MyJurnal DOI: 10.5704/MOJ.1507.005
    BACKGROUND: This study was conducted to find out the age when tibiofemoral angle starts to be in valgus and reaches maximum angle. The differences of the angles between genders were also studied.

    METHODOLOGY: This cross sectional study on tibiofemoral angle was conducted among 160 normal healthy children using clinical measurement method. The children between 2 18 months to 6 years old were assigned to 5 specific age groups of 32 children with equal sex distribution.

    RESULT: This study had shown a good inter-observer reliability of tibiofemoral angle measurement with intraclass correlation coefficient (ICC) of 0.87 with narrow margin of 95% confident interval (95% CI: 0.73, 0.94). The mean tibiofemoral angle for children at 2 , 3 , 4 , 5 and 6 years old were 2.25° (SD=0.53), 8.73° (SD=0.95), 7.53° (SD=1.40), 7.27° (SD=1.14) and 6.72° (SD=0.98) respectively. The age when they achieved maximum valgus tibiofemoral angle was 3 years old. The maximum mean (SD) tibiofemoral angle for boys, girls and all children were 8.91° (SD=1.17), 8.56° (SD=0.62) and 8.73° (SD=0.95)respectively. The mean tibiofemoral angle showed no statistically significant difference between girls and boys except for the 5-year-old group, in which the mean TF angle for girls was 7.560 (SD=0.95) and for the boys was 6.970 (SD=1.26) with p-value of 0.037.

    CONCLUSION: Measurement of tibiofemoral angle using the clinical method had a very good inter-observer reliability. The tibiofemoral angle in Malay population was valgus since the age of 2 years with maximum angle of 8.730 (SD=0.95) achieved at the age of 3 years.

    Matched MeSH terms: Sex Distribution
  15. Jamsiah, M., Rahmah, M.A., Sh Ezat, W.P., Shamsul, A.S.
    MyJurnal
    Background : Family planning is a method to control family size and to increase the intervals between chidbirths using multiple methods of contraceptives.
    Objectives : This study aims to determine the pravelance of family planning practice among married women (wife less than 55 years old) and its related factors and also to determine the husbands knowledge on family planning and their support.
    Methodology : This is a cross sectional study done through direct interviews amongst 118 married couples in Kampung Sesapan Batu Mingkabau, Hulu Langat Selangor.
    Results : On family planning practise, 43.2% of couples is currently practising, 22.0% have practiced but stopped and 34.8% have never used any types of family planning methods. As high as 75% of wives received support from their husband to pratice family planning. There is a significant association between family planning practice and wife’s age, husband’s age, wife’s occupation, wife’s education, wife’s knowledge and husband’s support. Husband’s knowledge , number of live children and husband’s education have no significant assocation in influencing family planning practice.
    Conclusion : To achieve better knowledge and family planning practises, husband’s involvement and support must be encouraged to ensure the correct informations and support are delivered to both couples. Approach through husbands is regarded as one of the key factors to the success of rural women family planning practice.
    Matched MeSH terms: Sex Education
  16. Alina, T.I., Norbanee, T.H., Hashim, M.H., Zaki, N.M.S.
    MyJurnal
    A cross»sectional study was conducted to determine the knowledge on family planning among Malay women who delivered at Hospital Universiti Sains Malaysia (H USM), Kelantan and their husbands. Three hundred and fifty five women were selected by systematic random sampling. An interview-guided questionnaire that included infomation on socio-demographic, obstetric and knowledge on family planning was conducted to the women and self-administered questionnaire was given to their husbands. There were 15 questions on knowledge which were validated prior to the study. More than half of the women (53.5%) and the husbands (57.7%) had poor knowledge score (less than 75%) on family planning. A majority (86.8%) of the women and 87.9% of the husbands knew the optimal age of a woman to be pregnant, but very few (3.4%) of the women and Ss 1% of the husbands could answer correctly all the questions on the effects of poor spacing. The level of knowledge on family planning among Malay women who delivered at H USM and their husbands were poor. Therefore, new and improved health education materiab and programmes are needed, to target both the women and their husbands.
    Matched MeSH terms: Sex Education
  17. Marret, M.J., Aili, H., Koh, M.T.
    MyJurnal
    This paper looks at some of the problems encountered when cases of abuse and injuries occur in children placed in child care in an urban community in Malaysia. It is based on the study of 37 children referred to our hospital's Child Protection Services over the past four years for injuries and incidents where the child-minders came under suspicion. They constituted 12% of the 285 children referred to the Child Protection Team during that period for evaluation of suspected child abuse. Twenty six children had experienced physical trauma. Fifty eight percent of these were young infants with cranial injuries or limb fractures but no history to explain their occurrence. Four had superficial injuries from accidents secondary to inadequate supervision. The other 11 children had been sexually abused. The perpetrators in 73% of cases were either the husbands or sons of the child-minder. Ninety five percent of the incidents occured at home-based nurseries. Prospects of any punitive measures were remote in most instances due to uncertainty about the perpetrator, or insufficient corroborative evidence required in sexual abuse cases. There were three documented cases where the family refused to lodge a police report or co-operate with investigations out of a reluctance to implicate or offend the child-minders who were mainly neighbours, relatives or friends in 58% of cases. Ninety seven percent of the facilities were unregistered, making surveillance for recurrent incidents and adherence to safety standards difficult. These incidents were almost certainly an underestimate of the problem. Training of child-care providers, improved legislation and enforcement as well as education of parents to choose suitable facilities are issues which need to be tackled.
    Matched MeSH terms: Sex Offenses
  18. Wahab, J.A., Fadzil, A.A., Zainab, K., Affendi, A.M., Naznin, M.
    MyJurnal
    During a 24-month period, 21 children with acute bacterial meningitis were identified and studied. The majority of the children was from low socio-economic group and the male:female sex ratio was equal. Seventeen children (81%) were aged twelve months or below. In 15 (71.5%) of the children. Haemophilus influenzae type b was recovered, while Streptococcus pneumoniae was isolated from 4 children. Neisseria spp and Salmonella spp were identified respectively in each of the other two cases. The case fatality was four (19.0%) with nine others (42%) exhibiting neurological sequelae. Except for the Salmonella spp strain that was resistant to the cephalosporin, the rest of the bacterial species were sensitive to the commonly used antibiotics. As Haemophilus influenzae type b is still the most prevalent cause of acute bacterial meningitis, it is therefore strongly recommended that the national immunisation programme in this country should include the vaccine for it in our effort to minimise the mortality and morbidity caused by this organism.
    Matched MeSH terms: Sex Ratio
  19. Zahari Taha, Ruhaizin Sulaiman
    MyJurnal
    The physical strength of the elderly aged above 60 years is typically 10 to 30% less than the young adult population of ages between 25 to 35 years. This reduction of strength has a strong impact on the activity of the daily living (ADL) of the elderly population. There has been little research done studying on the physical strength of the elderly population in Malaysia. The objective of this study was to determine the static strength of the elderly population in Malaysia. In particular, the grip and pinch strength were investigated as these two static strengths are extensively used in their instrumental activity of daily living (IADL). The results were then compared to the strength of the university students. A total of 30 subjects (15 males and 15 females) participated in the study. Their age ranged between 60 to 83 years, with the mean of age of 67.1 years. The comparison group comprised a total of 30 university students (20 male, 10 female) aged between 23 to 24 years, with the mean of age of 23.2 years. Grip and pinch strengths of both groups were measured and analysed using a descriptive statistics. It was found that the elderly male subjects are stronger in both strength measurements than their female counterpart. The 95th percentile of the female grip strength was slightly lower than that of the male while the male pinch strength was 31.07% higher. It was also found that the male students had higher strengths compared to the females. The grip strength of the elderly was 30.66% lower than the university student, while their pinch strength was 13.42% lower. Both static strengths of the elderly were found to be lower than those of the university students. This supported the research hypotheses postulating that the static strength had a negative correlation with age. In terms of gender differences, the male subjects were found to be stronger than the females.
    Matched MeSH terms: Sex Characteristics
  20. Yap SF, Pang T
    Asian J Infect Dis, 1979 Jun;3(2):85-7.
    PMID: 120736
    Serum C3 and C4 values were determined in 236 normal adults of three racial groups, using the single radial immunodiffusion techniques. The C3 levels varied from 47 to 119 mg/dl and C4 levels from 16 to 66 ml/dl (mean +/- 2SD). The values were found to be comparable to the normals reported in some Western series. No significant differences in the levels related to sex and race were found.
    Matched MeSH terms: Sex Factors
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