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  1. Removal of iron and manganese by artificial destratification in a tropical climate (Upper Layang Reservoir, Malaysia)
    Ismail R, Kassim MA, Inman M, Baharim NH, Azman S
    Water Sci Technol, 2002;46(9):179-83.
    PMID: 12448467
    Environmental monitoring was carried out at Upper Layang Reservoir situated in Masai, Johor, Malaysia. The study shows that thermal stratification and natural mixing of the water column do exist in the reservoir and the level of stratification varies at different times of the year. Artificial destratification via diffused air aeration techniques was employed at the reservoir for two months. The results show that thermal stratification was eliminated after a week of continuous aeration. The concentrations of iron and to a lesser extent manganese in the water column was also reduced during the aeration period.
  2. Fulltext Psychometric Properties of Malay Obsessive-compulsive Inventory-child Version (OCI-CV) in Malaysian Perspectives
    Fitri Sarnin E, Sharip S, Badilla Idris I, Mohd Hashim S, Salwina Wan Ismail W, Nazri Abdul Rahman F, et al.
    Scand J Child Adolesc Psychiatr Psychol, 2022 Jan;10(1):114-122.
    PMID: 36514488 DOI: 10.2478/sjcapp-2022-0012
    BACKGROUND: This study aimed to examine the psychometric properties of reliability and validity of OCI-CV in a non-clinical sample of Malaysian children and adolescents.

    METHOD: Participants of school-age and adolescent students from Klang Valley School completed the 21-item Malay OCI-CV using Google Form. OCI-CV English version was translated backward and forward to the Malay language. Face validity was conducted first before distributing the questionnaire to the participants. Exploratory Factor analysis (EFA) and Confirmatory Factor Analysis (CFA) was conducted to evaluate the psychometric properties of OCI-CV.

    RESULTS: A total of 102 school-age children and adolescents with a mean age of 15.96 years (male: 41.2%, female: 58.8%) participated in the study. The Malay OCI-CV showed high internal consistency, with Cronbach Alpha values of 0.90 for the whole scale. EFA showed multifactorial components. Five factors were labelled as "Washing / Ordering, Doubting, Obsessions, Checking, and Hoarding,". In the CFA, the five-factor model indicates adequate fit indices of (χ2/df = 1.51, RMSEA = .071, GFI = .824, AGFI = .769, NFI = .724, CFI = .880).

    CONCLUSION: The Malay OCI-CV has good psychometric properties and is suitable for use in the Malaysian context. Further validation studies should be conducted among a clinical population to enhance the generalization of this finding.

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