Displaying publications 1 - 20 of 183 in total

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  1. Abdul Aziz Jemain
    This paper presents the accuracy of age statistics in the 1991 census. The quality of age statistics were evaluated using Myers index and United Nations index. The indices obtained were compared to the indices of 1970 and 1980. This study found that age statistics for 1991 census are better than the previous censuses and in general the statistics are having high quality.
    Dalam kertas ini dibentangkan ketepatan statistik umur pada banci 1991. Kualiti statistik umur dinilai dengan menggunakan indeks Myers dan United Nations. Indeks yang diperoleh dibandingkan dengan indeks pada banci 1970 dan 1980. Kajian ini mendapati statistik umur banci 1991 lebih baik daripada hasil banci sebelumnya dan pada keseluruhannya ia mempunyai kualiti yang baik.
    Matched MeSH terms: Biometry
  2. Abdul Ghani N, Kamaruddin N'F, Mokhtar NI
    Malays J Med Sci, 2021 Feb;28(1):87-96.
    PMID: 33679224 DOI: 10.21315/mjms2021.28.1.11
    Background: Dispensing separation (DS) is a critical policy change that will reduce medical costs, improve population health and increase the quality of healthcare in Malaysia. This study aims to determine the awareness and perception of the public regarding the DS methods.

    Methods: This cross-sectional study uses a pre-validated, self-administered questionnaire, which has been administered to 200 residents in Jitra, Kedah, Malaysia. Descriptive and inferential statistics have been used to analyse the data.

    Results: Females formed 64.0% of the participants, with Malay being the dominant ethnic group (n = 167, 83.5%); 77.5% of the participants reported they were aware of the role of pharmacists in the healthcare system. However, 35.0% of the participants reported having never heard the term 'dispensing separation' in any mainstream media in Malaysia, whereas 73.5% of the participants reported that a pharmacist was more reliable than a physician in providing medicines once the diagnosis had been made and 77.5% of them acknowledged that pharmacists were experts in the field of medication. There was a significant association between the participant's awareness and the agreement on perceptions toward the implementation of the DS (P < 0.05).

    Conclusion: Awareness of the implementation of DS among residents in Jitra is still low. However, there is strong evidence of public support and the benefits of DS in Malaysia.

    Matched MeSH terms: Biometry
  3. Abdul Latiff D, Irfan M, Jafri Malin A
    Malays J Med Sci, 2012 Apr;19(2):1-4.
    PMID: 22973132
    As a small-although growing-journal based in Malaysia, the Malaysian Journal of Medical Sciences (MJMS) has faced several challenges in the past, such as promoting our journal as well as making sure our article bank does not go empty. However, we strive to improve ourselves by taking all means necessary to increase the quantity and, most importantly, quality of our publications, as well as to increase our journal's visibility and citability. This editorial will focus on MJMS statistics throughout 2011-where MJMS turned 18-as well as future plans for our journal.
    Matched MeSH terms: Biometry
  4. Abdullah HM, Khairudin R, Fatimah wH
    Jurnal Psikologi Malaysia, 2014;olume 28:88-97.
    This study was carried out to determine the influence of LMX towards the SCB worker dimension in a national automotive company in Malaysia. There were 360 respondents from the automotive company involved in this study. Data collected from respondents were analysed using descriptive (demographic frequencies) and inferential statistics (correlation and regression analysis). The results showed that one of the four independent variables has a positive influence on SCB. In terms of the demographic factors, none of the variables (age, gender and period of service) made any significant difference on LMX and SCB, except the position category. Further suggestions regarding LMX and SCB are discussed based on the findings.
    Matched MeSH terms: Biometry
  5. Abdullah SN, Mohmad Sabere AS
    J Pharm Bioallied Sci, 2020 12 21;13(1):143-147.
    PMID: 34084061 DOI: 10.4103/jpbs.JPBS_463_20
    One of the major concerns in any pharmacological treatment is the patients' adherence to medication. However, different types of ocular dosage forms might result in different response and compliance from the patients. This study investigated and compared public willingness on different types of dosage forms available for ocular treatment. The study also evaluated their willingness on new approach for the treatment based on their knowledge, attitude, and perception. This study was conducted between October and December 2017 through a set of questionnaires applied to 90 respondents between the age of 18 and 60 years who lived in Muar and Kuantan, Malaysia. The results were analyzed using SPSS software version 22.0 including inferential and descriptive statistics. There was no significant difference in the knowledge level between all age groups towards different types of dosage forms available; eye drops (P = 0.09), eye ointment (P = 0.252), medicated contact lens (P = 0.05), ocular mini-tablets (P = 0.06), and ocular inserts (P = 0.075). There is a variation of results among the public towards different types of dosage forms with their willingness to try conventional and novel approach. Eye drops show the highest willingness followed by eye ointment (less willingness). However, most of them showed no willingness towards medicated contact lens, ocular mini-tablets, and ocular insert. This research hopes to provide an overview on the development process of new formulation and dosage forms based on the patients' willingness level in an attempt to increase patient compliance.
    Matched MeSH terms: Biometry
  6. Abidin, N. Z., Adam, M. B., Midi, H.
    MyJurnal
    Extreme Value Theory (EVT) is a statistical field whose main focus is to investigate extreme phenomena. In EVT, Fréchet distribution is one of the extreme value distributions and it is used to model extreme events. The degree of fit between the model and the observed values was measured by Goodness-of-fit (GOF) test. Several types of GOF tests were also compared. The tests involved were Anderson-Darling (AD), Cramer-von Mises (CVM), Zhang Anderson Darling (ZAD), Zhang Cramer von-Mises (ZCVM) and Ln. The values of parameters μ, σ and ξ were estimated by Maximum Likelihood. The critical values were developed by Monte-Carlo simulation. In power study, the reliability of critical values was determined. Besides, it is of interest to identify which GOF test is superior to the other tests for Fréchet distribution. Thus, the comparisons of rejection rates were observed at different significance levels, as well as different sample sizes, based on several alternative distributions. Overall, given by Maximum Likelihood Estimation of Fréchet distribution, the ZAD and ZCVM tests are the most powerful tests for smaller sample size (ZAD for significance levels 0.05 and 0.1, ZCVM for significance level 0.01) as compared to AD, which is more powerful for larger sample size.
    Matched MeSH terms: Biometry
  7. Abu Hassan Shaari Mohd Nor, Ahmad Shamiri, Zaidi Isa
    In this research we introduce an analyzing procedure using the Kullback-Leibler information criteria (KLIC) as a statistical tool to evaluate and compare the predictive abilities of possibly misspecified density forecast models. The main advantage of this statistical tool is that we use the censored likelihood functions to compute the tail minimum of the KLIC, to compare the performance of a density forecast models in the tails. Use of KLIC is practically attractive as well as convenient, given its equivalent of the widely used LR test. We include an illustrative simulation to compare a set of distributions, including symmetric and asymmetric distribution, and a family of GARCH volatility models. Our results on simulated data show that the choice of the conditional distribution appears to be a more dominant factor in determining the adequacy and accuracy (quality) of density forecasts than the choice of volatility model.
    Matched MeSH terms: Biometry
  8. Aburas MM, Ahamad MSS, Omar NQ
    Environ Monit Assess, 2019 Mar 05;191(4):205.
    PMID: 30834982 DOI: 10.1007/s10661-019-7330-6
    Spatio-temporal land-use change modeling, simulation, and prediction have become one of the critical issues in the last three decades due to uncertainty, structure, flexibility, accuracy, the ability for improvement, and the capability for integration of available models. Therefore, many types of models such as dynamic, statistical, and machine learning (ML) models have been used in the geographic information system (GIS) environment to fulfill the high-performance requirements of land-use modeling. This paper provides a literature review on models for modeling, simulating, and predicting land-use change to determine the best approach that can realistically simulate land-use changes. Therefore, the general characteristics of conventional and ML models for land-use change are described, and the different techniques used in the design of these models are classified. The strengths and weaknesses of the various dynamic, statistical, and ML models are determined according to the analysis and discussion of the characteristics of these models. The results of the review confirm that ML models are the most powerful models for simulating land-use change because they can include all driving forces of land-use change in the simulation process and simulate linear and non-linear phenomena, which dynamic models and statistical models are unable to do. However, ML models also have limitations. For instance, some ML models are complex, the simulation rules cannot be changed, and it is difficult to understand how ML models work in a system. However, this can be solved via the use of programming languages such as Python, which in turn improve the simulation capabilities of the ML models.
    Matched MeSH terms: Biometry
  9. Adzhar Rambli, Safwati Ibrahim, Mohd Ikhwan Abdullah, Abdul Ghapor Hussin, Ibrahim Mohamed
    Sains Malaysiana, 2012;41:769-778.
    This paper focuses on detecting outliers in the circular data which follow the wrapped normal distribution. We considered four discordance tests based on M, C, D and A statistics. The cut-off points of the four tests were obtained and the performance of the detection procedures was studied via simulations. In general, we showed that the discordance test based on the A statistic outperforms the other tests in all cases. For illustration, the city of Kuantan wind direction data set was considered.
    Matched MeSH terms: Biometry
  10. Ahmad M, Zafar M, Sultana S, Ahmad M, Abbas Q, Ayoub M, et al.
    Microsc Res Tech, 2018 Sep;81(9):1004-1016.
    PMID: 30303585 DOI: 10.1002/jemt.23066
    Pollen micro-morphological features have proven to be helpful for the plant taxonomists in the identification and classification of plants. The utilization of this plantmayhelpfulin the areas of lignocellulosic conversion to biofuels and diversify application toward biomass. The current study was planned with the aim to evaluate the pollen features of complex Ranunculaceous flora of District Chitral, Northern Pakistan using both scanning electron microscopy (SEM) and Light Microscope (LM) for their taxonomic importance. Pollens of 18 Ranunculaceous species belonging to 6 genera were collected from different localities of the research area. SEM and LM were used to examine both qualitative and quantitative micro-morphological features. Sculptring of the sexine include; Scabrate, psilate, echinate, verrucate, perforate gemmate, and reticulate and so forth. Shape of the pollens was sub-spheroidal, spheroidal, prolate, subprolate and oblate and so forth. Type of pollen was ranged from mono to tricolpate and tricolporate. Quantitative characters include length/width of the pollen, colpus, exine thickness, and P/E ratio. Based on these micro-morphological features a taxonomic key was prepared for the fast and correct identification. RESEARCH HIGHLIGHT: Study of the pollen micro-morphological features of Ranunculaceous species by SEM and LM. Analysing both qualitative and quantitative characters of the pollens. Preparation of taxonomic key based on micro-morphological features for the correct and fast identification.
    Matched MeSH terms: Biometry
  11. Ahmad Zamri Khairani, Nor Shafrin Ahmad, Aziah Ismail, Rahimi Che Aman
    MyJurnal
    Introduction: This study examines the psychometric characteristics of a translated version of the Beck Depression Inventory II (BDI – II) among Malaysian school students. Methods: The sample consisted of 257 boys and 302 girls. This study employed WINSTEPS 3.74 to provide statistics and other information from Rasch Model analysis, namely, the fit statistics, dimensionality analysis, rating scale analysis, reliability and separation indices, differential item func- tioning analysis, and distribution of items difficulty and students’ ability. Results: Rating scale analysis showed that category 2 and category 3 of the ratings were not different. Meanwhile, Item 19 did not fit the model’s expectations; and thus, it was omitted from further analyses. The scale demonstrated a high person reliability and a high person separation index. There were no items demonstrating gender DIF. The school students endorsed feeling guilty as the least severe symptom of depression, while committing suicide as the most serious symptom. Conclusion: In general, the BDI-II demonstrated acceptable properties in measuring depression symptoms among school students.
    Matched MeSH terms: Biometry
  12. Ahmad, Mani Malam, Abd. Aziz Mohd Azoddein, Jami, Mohammed Saed
    MyJurnal
    : Studies on bacterial growth pattern from the conventional approach are defective due
    to their failure to explain the interactions or simply the complementary effects of the factors
    influencing the bacterial growth. In this study, the individual and collaborative effects of
    Pseudomonas putida growth variables were evaluated using a 2-level fractional factorial design of
    experiment (FFDOE). The growth of the organism was found to respond remarkably to different
    concentrations of nutrient media (carbon source) and the other independent variables. Factorial
    models were developed from the experimental design to study the individual and interactive effects
    of the studied parameters on the response. The studied parameters and their levels were as follows:
    nutrient concentration (4-16 g/L), acclimatization time (24-72 hrs), agitation (140-200 rpm), and
    temperature (30-40oC). These parameters were statistically validated using analysis of variance
    (ANOVA) and the results revealed that the model terms were statistically significant with an Fvalue of 415.17 at P temperature > nutrient concentration versus temperature >
    agitation > nutrient concentration versus agitation. Based on the R
    2
    and the adjusted R
    2
    values of
    >95%, the estimated variables showed a high degree of relationship between the observed and the
    predicted values; thus, the predictive ability of the models was suggested. It could, therefore, be
    concluded that nutrient concentration, temperature, and agitation can greatly influence the growth
    of P. putida within a specific range.
    Matched MeSH terms: Biometry
  13. Aisha Maqsad Hussain, Gururajaprasad Kaggal Lakshmana Rao, Mohd Fadhli Khamis, Norehan Mokhtar
    MyJurnal
    Introduction: A parallel design randomized clinical trial was conducted to compare dentoalveolar and skeletal changes in two groups of patients who had completed twin block therapy; one group had a three-month night-time retention period whereas the other group had no retention period, after twin block therapy but before fixed applianc- es. Methods: 26 participants of Malay ethnicity aged 10 to 15 years were included in the trial and had an overjet of 5mm or greater, molar relationship greater than half cusp Class II on a skeletal Class II base which had been corrected to a Class I molar relationship following twin block therapy. Following randomization, the 26 were divided into two groups of 13. Group A had fixed appliances bonded immediately whereas group B continued wearing twin block at night for three months, after which fixed appliances were bonded. Lateral cephalograms assessed were those taken before randomization, upon twin block therapy completion (T1) and six months after bond-up of fixed appliances (T2). Results: Paired t-test showed several statistically significant dentoalveolar and skeletal changes in group A. In contrast, only condylar head position exhibited a statistically significant change in group B. Despite a statistical sig- nificance, changes measured in both groups were minimal at less than 2mm and therefore clinically insignificant. Independent t-test showed no statistically significant difference between the changes recorded in both groups. Con- clusion: The results suggest that a three-month night-time retention period after twin block therapy does not lead to any changes that may be considered clinically beneficial.
    Matched MeSH terms: Biometry
  14. Aishairma Aris, Ling Ming Jing, Aida Kalok, Yang Wai Wai
    MyJurnal
    Introduction: Severe labour pain and dissatisfaction towards supports received from midwives during labour are common experiencesamong parturient mothers. Thesenegative emotional experiences need to be given attention as they are associated with higher acute stress reactions and postpartum depressive symptoms. Therefore, this study examinedthe labour pain and satisfaction toward labour support and their influential factors. Methods: A total of 136 parturient mothersregistered for a labour in the UniversitiKebangsaan Malaysia Medical Centre were included in this studyusing simple random sampling. The mothers had met the eligibility criteria; live and singleton pregnancy, able to communicate in English, Malay or Mandarin. Visual anologue scale and Bryanton Adaptation of the Nursing Support in Labor Questionnaire (BASILIQ) which contained both quantitative and qualitative questions were used to measure the pain and satisfaction level respectively. Descriptive statistics, Spearman correlation, Mann-Whitney and Kruskal-Wallis tests and also content analysis wereutilised to analyse the data. Results: Labour pain was low (Mean=2.24, SD=2.20) and satisfaction toward the labour support was high (Mean=76.9, SD=8.75). Both the pain and satisfaction were not significantly related to each other and also to any of the mothers’ demographic (p > 0.05) and obstetrical data (p > 0.05). However, 32.9% (n=25) out of 76 subjectswho responded to the qualitative questions had highlighted the need of havingfriendly and helpful nurses during their labour.In addition, 56% (n=14) out of 25 subjects who provided additional comments had suggested to include theemotional support to reduce their labour pain, fear and anxiety. Conclusion: Friendly and helpful nurses are part of the emotional support for labour. There- fore, it is recommended that a structured emotional laboursupport should be made availableto parturient mothers. Further research examining the effectiveness of the emotional support on the pain and satisfaction, nevertheless, is warranted.
    Matched MeSH terms: Biometry
  15. Al-Dubai S, Ganasegeran K, Barua A, Rizal A, Rampal K
    Ann Med Health Sci Res, 2014 Jul;4(Suppl 2):S104-7.
    PMID: 25184074 DOI: 10.4103/2141-9248.138023
    BACKGROUND: The 10-item version of Perceived Stress Scale (PSS-10) is a widely used tool to measure stress. The Malay version of the PSS-10 has been validated among Malaysian Medical Students. However, studies have not been conducted to assess its validity in occupational settings.
    AIM: The aim of this study is to assess the psychometric properties of the Malay version of the PSS-10 in two occupational setting in Malaysia.
    SUBJECTS AND METHODS: This study was conducted among 191 medical residents and 513 railway workers. An exploratory factor analysis was performed using the principal component method with varimax rotation. Correlation analyses, Kaiser-Meyer-Olkin, Bartlett's test of Sphericity and Cronbach's alpha were obtained. Statistical analysis was carried out using statistical package for the social sciences version 16 (SPSS, Chicago, IL, USA) software.
    RESULTS: Analysis yielded two factor structure of the Malay version of PSS-10 in both occupational groups. The two factors accounted for 59.2% and 64.8% of the variance in the medical residents and the railway workers respectively. Factor loadings were greater than 0.59 in both occupational groups. Cronbach's alpha co-efficient was 0.70 for medical residents and 0.71 for railway workers.
    CONCLUSION: The Malay version of PSS-10 had adequate psychometric properties and can be used to measure stress among occupational settings in Malaysia.
    KEYWORDS: Factor structure; Malaysia; Occupational; Perceived stress scale; Psychometric properties; Validity
    Matched MeSH terms: Biometry
  16. Allawi MF, Aidan IA, El-Shafie A
    Environ Sci Pollut Res Int, 2021 Feb;28(7):8281-8295.
    PMID: 33052565 DOI: 10.1007/s11356-020-11062-x
    The accuracy level for reservoir evaporation prediction is an important issue for decision making in the water resources field. The traditional methods for evaporation prediction could encounter numerous obstacles owing to the effect of several parameters on the shape of the evaporation pattern. The current research presented modern model called the Coactive Neuro-Fuzzy Inference System (CANFIS). Modification for such model has been achieved for enhancing the evaporation prediction accuracy. Genetic algorithm was utilized to select the effective input combination. The efficiency of the proposed model has been compared with popular artificial intelligence models according to several statistical indicators. Two different case studies Aswan High Dam (AHD) and Timah Tasoh Dam (TTD) have been considered to explore the performance of the proposed models. It is concluded that the modified GA-CANFIS model is better than GA-ANFIS, GA-SVR, and GA-RBFNN for evaporation prediction for both case studies. GA-CANFIS attained minimum RMSE (15.22 mm month-1 for AHD, 8.78 mm month-1 for TTD), minimum MAE (12.48 mm month-1 for AHD, 5.11 mm month-1 for TTD), and maximum determination coefficient (0.98 for AHD, 0.95 for TTD).
    Matched MeSH terms: Biometry
  17. Alsanabani AAM, Yusof ZYM, Wan Hassan WN, Aldhorae K, Alyamani HA
    Children (Basel), 2021 May 25;8(6).
    PMID: 34070552 DOI: 10.3390/children8060448
    (1) Objectives: This paper aimed to cross-culturally adapt the Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ) into an Arabic language version (PIDAQ(A)) for measuring the oral health related quality of life related to dental aesthetics among 12-17-year-old Yemeni adolescents. (2) Material and methods: The study comprised three parts, which were linguistic validation and qualitative interview, comprehensibility assessment, and psychometric validations. Psychometric properties were examined for validity (exploratory factor analysis (EFA), partial confirmatory factor analysis (PCFA), construct, criterion, and discriminant validity) and reliability (internal consistency and reproducibility). (3) Results: The PIDAQ(A) contained a new item. EFA extracted three factors (item factor loading 0.375 to 0.918) comprising dental self-confidence, aesthetic concern, and psychosocial impact subscales. PCFA showed good fit statistics (comparative fit index (CFI) = 0.928, root-mean-square error of approximation (RMSEA) = 0.071). In addition, invariance across age groups was tested. Cronbach's α values ranged from 0.90 to 0.93 (intraclass correlations = 0.89-0.96). A criterion validity test showed that the PIDAQ(A) had a significant association with oral impacts on daily performance scores. A construct validity test showed significant associations between PIDAQ(A) subscales and self-perceived dental appearance and self-perceived need for orthodontic braces (p < 0.05). Discriminant validity presented significant differences in the mean PIDAQ(A) scores between subjects having severe malocclusion and those with slight malocclusion. No floor or ceiling effects were detected.
    Matched MeSH terms: Biometry
  18. Aman A, Brown CJ, Johnson Z
    Growth, 1978 Dec;42(4):486-94.
    PMID: 750311
    Body weight and nine body measurements were recorded on 79 mature Kedah-Kelantan cows at two locations. The Kedah-Kelantan is an indigenous cattle of Malaysia. A principal component analysis was used to study size and shape as indicated by the dependence structure among measurements. The total variation among measurements associated with the first principal component which was interpreted as a measure of general size was 40.8%. The second principal component contrasted cows tall at the withers, and deep at the chest with top line sloping downward and under line sloping upward from front to rear with those having less wither height and chest depth and straighter lines. This contrast accounted for 14.3% of the variation in body dimensions. The third principal component contrasted long, narrow, and deeper cows with a more compact type. This contrast accounted for 10.7% of the variation in body dimensions.
    Matched MeSH terms: Biometry
  19. Amarneh S, Raza A, Matloob S, Alharbi RK, Abbasi MA
    Nurs Res Pract, 2021;2021:6688603.
    PMID: 33815841 DOI: 10.1155/2021/6688603
    There is an acute shortage of nurses worldwide, including in Jordan. The nursing shortage is considered to be a crucial and complex challenge across healthcare systems and has stretched to a warning threshold. High turnover among nurses in Jordan is an enduring problem and is believed to be the foremost cause of the nurse shortage. The purpose of this study was to investigate the multidimensional impact of the person-environment (P-E) fit on the job satisfaction (JS) and turnover intention (TI) of registered nurses. The moderating effect of psychological empowerment (PE) on the relationship between JS and TI was also investigated. Based on a quantitative research design, data were collected purposively from 383 registered nurses working at private Jordanian hospitals through self-administered structured questionnaires. Statistical Package for Social Sciences (SPSS) 25 and Smart Partial Least Squares (PLS) 3.2.8 were used to analyze the statistical data. The results showed that there is a significant relationship between person-job fit (P-J fit), person-supervisor fit (P-S fit), and JS. However, this study found an insignificant relationship between person-organization fit (P-O fit) and JS. Moreover, PE was also significantly moderate between JS and TI of nurses. This study offers an important policy intervention that helps healthcare organizations to understand the enduring issue of nurse turnover. Additionally, policy recommendations to mitigate nurse turnover in Jordan are outlined.
    Matched MeSH terms: Biometry
  20. Ang M, Chong W, Huang H, Wong TY, He MG, Aung T, et al.
    PLoS One, 2014;9(7):e101483.
    PMID: 25006679 DOI: 10.1371/journal.pone.0101483
    To describe the corneal and anterior segment determinants of posterior corneal arc length (PCAL) and posterior corneal curvature (PCC).
    Matched MeSH terms: Biometry
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