Displaying publications 21 - 40 of 367 in total

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  1. Rizal MR, Azizul I, Ng SW
    PMID: 21202396 DOI: 10.1107/S160053680801115X
    The low-temperature structure of the title compound, C(4)H(8)N(2)O, is ordered, whereas the central methyl-ene groups is disordered in the reported room-temperature structure. The molecule lies across a mirror plane; adjacent mol-ecules are linked by an N-H⋯O hydrogen bond into a chain.
  2. Rizal RM, Ali HM, Ng SW
    PMID: 21202401 DOI: 10.1107/S1600536808011082
    The mol-ecules of the title compound, C(10)H(10)N(4)S, are linked by N-H(indole)⋯S hydrogen bonds to form a linear hydrogen-bonded chain. There are two independent mol-ecules in the asymmetric unit.
  3. Rizal MR, Ali HM, Ng SW
    PMID: 21202400 DOI: 10.1107/S160053680801101X
    In the essentially planar title mol-ecule, C(10)H(9)BrN(4)S, the C=N double bond is in a trans configuration. In the crystal structure, the S atom acts as a hydrogen-bond acceptor for the aromatic NH, aliphatic NH and terminal NH(2) groups of three symmetry-related mol-ecules, forming a weak hydrogen-bonded layer structure.
  4. Rizal MR, Azizul I, Ng SW
    PMID: 21202397 DOI: 10.1107/S1600536808011148
    The hydroxyl group in each of the two independent mol-ecules of the title compound, C(7)H(5)NO(4), participates in two O-H⋯O hydrogen bonds, viz. one intra-molecular bond to the nitro group and one inter-molecular bond to the aldehyde group of the same mol-ecule in the next unit, resulting in a linear chain structure. The dihedral angle between the aromatic ring and the nitro group is 10.9 (3)° in one mol-ecule and 9.9 (2)° in the other.
  5. Rizal MR, Ali HM, Ng SW
    PMID: 21201898 DOI: 10.1107/S1600536808003164
    The molecule of the title compound, C(18)H(14)N(4), lies on a center of inversion such that there is one half-mol-ecule in the asymmetric unit. The N-N single bond adopts a trans configuration and the indole fused-ring system is nearly coplanar with the -CH=N-N=CH- fragment [dihedral angle = 9.8 (2)°]. Adjacent mol-ecules are linked by indole-azine N-H⋯N hydrogen bonds into a layer motif.
  6. Rizal MR, Ali HM, Ng SW
    PMID: 21202507 DOI: 10.1107/S1600536808014293
    The Ni atom in the centrosymmetric title compound, [Ni(C(10)H(9)N(4)S)(2)], is N,S-chelated by the deprotonated Schiff bases in a square-planar geometry. The -CH=N-N=C(S)-NH(2) frament is planar. Adjacent mol-ecules are linked by hydrogen bonds between the indolyl -NH (donor) site and the double-bond =N- (acceptor) site of an adjacent mol-ecule, forming a layer motif.
  7. Hamidah A, Rizal AM, Nordiah AJ, Jamal R
    Singapore Med J, 2008 Jan;49(1):26-30.
    PMID: 18204765
    We evaluated piperacillin-tazobactam in association with amikacin in the initial empirical therapy of febrile neutropenic children.
  8. Ahmad Rizal AR, Md Nordin S
    Front Nutr, 2022;9:986324.
    PMID: 36407525 DOI: 10.3389/fnut.2022.986324
    The imminent threat to food security requires immediate intervention toward ensuring societal sustainability especially in combating the pandemic. The rapid spread of COVID-19 cases has caused concern for food security. A recent outlook report produced by Food Agricultural Organization and World Food Programme (FAO-WTP) highlights that there are at least 20 countries that are faced with a looming threat of food availability between the period of March-July 2021. Other factors that pose a significant threat to food security include climate change and natural disasters which could significantly reduce the yield. It is hence imperative to gain an in-depth understanding of factors that influence farmers' choices in innovation adoption for increased yield. A line of research has been conducted across the globe on new technology adoption and effect of innovation that aims to increase productivity and yield. This study examined the key factors, that lead farmers to the adoption of new technology and innovation, reported in studies over the past 15 years. PRISMA-P (Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols) was employed based on the SCOPUS and Web of Science database. In creating the main dataset, a protocol was developed in advance to document the analysis method. Several inclusion (eligibility) and exclusion criteria were set to select related articles from a total of 2,136 papers. The thematic and content analyses were subsequently performed on 392 research articles. The findings indicate 4 over-arching segments, and 12 major determinants, that comprise 62 associate determinants. The paper concludes with the identification of critical factors for innovation adoption amongst farmers.
  9. NOORIHA ABDULLAH, MOHD FAIZOL RIZAL MOHD RASID, NURHAFIZAH NORMAN@ZAKARIA
    MyJurnal
    This paper describes the Malaysian car owners’ preference to purchase their car through car lease swap arrangement. Since owning a car nowadays is a necessity for most individuals, people will try to find the easiest and fastest way to own a car. Hence, the aim of this paper is to describe the issues of car lease swap businesses conducted in Malaysia, in particular to understand the reasons, business mechanism, and benefits of buying a car via this method. Due to limited empirical studies on car lease swap arrangement in Malaysia, the research adopted a qualitative approach, which utilises the snowball method to identify its participants. Interviews were conducted with relevant parties, who were directly involved in car lease swap business, which include the car lease dealers, the car owners and third parties (buyers). The findings indicate that the car lease dealers were the most to gain out of this business, meanwhile the car owners were worse off. Compared to the third parties, the car owners benefited from the convenient arrangement of the business. Nevertheless, due to its vague legality, it is possible to have negative implications on all parties involved. As such, future research should look at all parties involved in investigating the issues of this car lease swap business, such as relevant government agencies and all other stakeholders.
  10. Muhamad Farhan Ab Razak, Titi Rahmawati Hamedon, Haidar Rizal Toha
    MyJurnal
    Introduction: Low back pain (LBP) is a common symptom among working population worldwide. Foggers prone to have LBP because there are exposed to physical factors such as lifting heavy object, awkward body posture and vibration. However, LBP had never been studied among the fogger. The objective of this study was to determine the prevalence and the factors associated with LBP. Methods: A cross-sectional study was carried out in all District Health Office in Johor, Malaysia by using a validated self-administered questionnaire and anthropometric measure-ments. Chi-square or Fisher’s exact test was used for inferential statistic and multiple logistic regression was used to determine the associated factors. The significance level was determined at p < 0.05. Results: The response rate was 83.9%. Majority of them are male (99.6%), Malay (95.8%), married (85.8%) and educated up to secondary school (53.5%). Majority of respondents do not have part time job (89.6%) but they work overtime everyday (62.7%). Most of them do four hours overtime daily (77.3%). The prevalence of LBP was 68.5% among respondents. There was a significant association between doing part time job, duration of doing overtime per week, body mass index (BMI) and duration of fogging activities. Finally, the associated factors of LBP were doing overtime for more than 20 hours per week (adjusted OR=1.914, 95% CI [1.102, 3.324], p = 0.021), BMI of more than 23.00 kg/m2 (adjusted OR=2.066, 95% CI [1.090, 3.916], p = 0.026) and having no part time job (adjusted OR=0.135, 95% CI [0.031, 0.599], p = 0.021). Conclusion: Prevention needs to be initiated to change the modifiable factors of LBP in order to reduce the prevalence of LBP among them.
  11. Nor Azim, M.N., Rizal, A.M., Wei, Bi L
    MyJurnal
    Background : A cross-sectional survey was carried out in December 2007 to compare the healthrelated quality of life (HRQoL) of stroke survivors with that of general Malaysian population.
    Methodology : Stroke patients were recruited from two community-based rehabilitation centres in Selangor. HRQoL was assessed using Medical Outcome 36-Item Short-Form Health Survey (SF-36).
    Result : A total of 61 patients (34 males and 27 females) were interviewed. Majority were Chinese (85%) and a small percentage were Malays (15%). 82% (n=50) were elderly of 60 years and above, and the remaining 18% (n=11) were younger patients. 64% had stroke for one year and more, and 36% were less than a year post-stroke. All subjects were community-dwellers and lived with their families. The result showed that with the exception of bodily pain, the mean score of all SF-36 health domains of stroke patients were lower than that of the general population. The greatest difference was in role physical, followed by physical functioning. Female patients demonstrated higher score than the males in all SF-36 domains, in particular general health (57.2 vs 70.3, p=0.01) and social functioning (52.2 vs 73.1, p=0.00). There were no differences of HRQoL domains after comparison according to poststroke duration (all p>0.05).
    Conclusion : HRQoL of stroke survivors is lower than that of Malaysian general population in all SF-36 health domains, with the exception of bodily pain.
  12. Ahmad Farid, A.R., Haidar Rizal, T., Jamsiah, M., Khalib, A.L.
    MyJurnal
    Introduction : Health management is a tool to ensure an effective running of health program and at the same time avoiding flaws to its components including patients, workers and the entire organization. Risk management is a new concept in health management where the determinants of the problems or the risks are put to minima. It’s strategies are oriented towards prevention as well as controlling to all its administrative system.
    Methodology : This is a systematic review on various papers, studies and observations put forwards by risk management experts. It is also supported by feedbacks from many scholars who are involved in research and teaching.
    Results : It is been observed that risk management activities have been on practiced in health care delivery system. It is not a new form, but rather a situational action based on certain issues. In fact, it happens in any organization – public or private. Close observation on this area has triggered development of various risk management models including some administrative standard and guidelines.
    Conclusion: Risk management is a new approach that need to be practiced by all manager and leader. Its discipline involves interpretation of risk at all angles. It is not only confined to the explicit component, but should also be expended to others area as well. It needs a good sense and good attitude of the manager. The essence of risk management is to minimize the risk to patient, staff, public and the entire organization.
  13. Ali, M.F., Aziz, N.A., Aznida, F.A.A., Rizal, A.M., Azmin, S.
    Medicine & Health, 2013;8(1):19-27.
    MyJurnal
    Functional recovery in the immediate post stroke period predicts the long-term prognosis of post stroke patients. Despite the advancement in stroke rehabilitation in improving the physical function of survivors, there are other factors that may influence functional recovery. We aimed to assess the functional recovery of ischaemic stroke patients attending a tertiary hospital and its associated factors in order to make recommendations for post stroke care after hospital admission. A three months prospective observational study looking at functional recovery using the Modified Barthel’s Index (MBI) and depression (Patient Heath Questionnaire-9) score of post stroke patients. There were 46 ischaemic stroke patients who were recruited for the study. At three months, only 37 patients were eligible for analysis. The mean age was 67.2 (SD 11) years with the Malays (50%) making up the majority of the patients, followed by Chinese (41.3%) and Indians (8.7%). There was a total of seven (15.2%) deaths. Hypertension was the most common risk factor (89.1%) followed by dyslipidaemia (65.2%) and diabetes mellitus (63.0%). The mean MBI difference was 45.2 (SD 27.0) with a median MBI of 17.0(IQR 33.0) at baseline compared to 85.0(IQR 42.0) at three months (p < 0.001, CI 35.98,55.45). The prevalence of depression (PHQ-9≥10) was 21.6%. Lower functional recovery was found among depressed patients (p
  14. Zaroog, Omar Suliman, Aidy Ali, Sahari, B.B., Rizal Zahari
    MyJurnal
    Compressive residual stress, induced by mechanical surface treatment, may relax during component
    operation life, due to thermal or mechanical mechanism. Fatigue life prediction for the components which have residual stress will be misled and inaccurately predicted the phenomenon of residual stress relaxation is not considered. Despite putting an effort on incorporating the residual stress relaxation, the issues remain concerned with the technical challenge of measuring and quantifying
    the magnitude of residual stress relaxation as well as redistribution during the loading cycling itself.
    In this paper, the residual stress relaxation and its models were reviewed and discussed to picture
    the best knowledge related to this topic, i.e. whether relaxation is a cause or an effect.
  15. Azimatun Noor, A., Mohd Rizal, A.M., Rozital, H., Aljunid, S.M.
    MyJurnal
    Introduction : Limited access to health services, variations in quality of health care and pressure to contain escalation of health care cost are problems in health care systems that are faced by all the societies in the world especially in developing countries. There is an urgent need to conduct a study to assess perception of individual towards health care services in the new planned National Healthcare Financing Scheme.
    Objective : The study objective is to examine the perception towards health care services among the farming community and to assess the willingness to contribute to The New National Health Financing Scheme.
    Methods : A cross sectional study involving farmers in the state of Selangor in Peninsular Malaysia was conducted. A total of 400 farmers as the household head were selected using multistage random sampling method.
    Results : The respondents’ mean score of perception towards public healthcare services were higher than the respondents’ mean score of perceptions towards private healthcare services except for accessibility and convenience aspects. There was no association between willingness to contribute to The New National Healthcare Financing Scheme and perception towards public healthcare services but there was association between willingness to contribute to The New National Healthcare Financing Scheme and perception towards private healthcare services.
    Conclusion : Perception towards healthcare services is an important element in the implementation of The New National Healthcare Financing Scheme as it will determine the willingness of an individual to contribute to it.
  16. Fatahyah Yahya, Rizal Abu Bakar, Nur Fatihah Mat Yusoff
    MyJurnal
    This study aimed to explore the influence of adult attachment on relationship quality among parents having children with Attention Deficit Hyperactivity Disorder (ADHD). A correlational research design was used to achieve the research objectives. Sixty eight parents of children with ADHD participated in this study. Two measures were used in this study: the Experience in Close Relationship (ECR) and the Dyadic Adjustment Scale (DAS). The findings indicated that when the anxiety attachment level of the participants was high, the marital satisfaction was low.The findings of this study can make a contribution to those focusing on conflict resolution and marital quality with a deeper understanding on the interpersonal problems in the relationship from attachment theory perspectives. It is suggested that a longitudinal research be conducted in the future with both groups of clinical and community in order to explore how attachment variables can predict relationship adjustment and child adjustment overtime.
  17. Mohammad Farris Iman Leong Abdullah, Rizal Abu Bakar
    MyJurnal
    Objective: This case reported highlighted psychotic disorder due to dengue fever
    is rare. Hence we describe a case which clearly presented with psychotic
    symptoms during the illness.

    Methods: We reported a case of psychotic disorder
    due to dengue fever who presented with psychotic symptoms of auditory and
    visual hallucination, and persecutory delusion, which had significant temporal
    correlation with dengue fever symptoms. There were no neurological deficits
    noted, no altered sensorium and cognitive impairment during the episode. He
    has no past and family history of mental illness and there was no evidence of
    encephalitis and metabolic disturbances.

    Results: Our case suggests that
    prominent psychotic symptoms can occur during an episode of dengue fever,
    which remitted when one recovering from dengue fever.

    Conclusion: We
    demonstrated that patients who presented with the acute onset of psychosis
    accompanied by symptoms of viral fever should be screened for dengue fever,
    particularly if the person lived in or visited the area where dengue fever is
    endemic.
  18. Muhammad Haikal Ghazali, Shamsul Azhar Shah, Mohd Rizal Abd Manaf
    MyJurnal
    As air travelling now becomes cheaper and available to almost all people of any walk of life, travelling across international borders is fast becoming a lifestyle of many. Having travel health service as part of health care services is important to address the issues of travel related illnesses among travellers. However, lacks of published guidelines pertaining to travel health service rendering many countries to overlook its importance. The aim of this paper is to review published literatures and authoritative websites on the components needed to develop guideline to establish travel health services. A systematic literature search was done using pre-specified keywords for literatures published between years 2000 – 2016. Literatures written in English and fully accessible were all included. No exclusion criteria was set before the search. Online authoritative websites pertaining to travel health were also referred. A total of six literatures ranging from expert opinion, review paper and original study, together with three authoritative websites related to travel health were reviewed. Among the important components needed to be considered for developing the guideline for establishing travel health services are to prioritise pre-travel health service, to set up specialised travel health clinic, to produce travel health/medicine specialist, to emphasize on continuous education and training of the practitioners and to apply multiagency and multidisciplinary approach with adequate fund for research in travel health. As a conclusion, policy makers should prioritise and select the most important components in developing guideline for travel health service.
  19. Norfazillah Ab Manan, Mohd Rizal Abdul Manaf, Rozita Hod
    MyJurnal
    Introduction: The transboundary smoke haze has become a major concern as it had a wide ranging impact in Southeast Asia from the aspect of public health to national economics. This review aims to synthesize available literature in epidemiology, economics and haze related studies to provide essential information for the valuation of health costs associated with haze in Malaysia. Methods: Evidence on health economic impact of haze was gathered by conducting a literature review and collecting information on the health effects of haze and the cost of it as well as the hospitalization cost from medical illnesses and hospital admissions due to haze. Articles were taken from those that were published from 1999 to 2016.Results: The 1997 Asian Haze episode has caused increasing trend of prematurity of mortality and respiratory problems and several series of haze later had caused increased number of hospitalization. The cost impact on hospital admission ranges from MYR1.8 million in 2005 to MYR118.9 million in 2013. During the 1997 haze, the incremental cost of illness (COI) was noted to be MYR 21million and it shot up to MYR 410 million during the 2013 haze. Conclusion: The haze gives a serious health effect to our country and our neighbours. These health effect has caused a significant health economy impact which include rise in hospital admission cost and medication, incremental cost of illness and extend to cost of medical-related leaves taken and lead to loss of income opportunities.
  20. Norliyana, M., Nor Hamdan, M. Y., Rizal, A. R.
    MyJurnal
    Mycobacterium tuberculosis (MTB) is a rare cause of prosthetic joint infection. The diagnosis is challenging
    especially in cases of latent tuberculosis. QuantiFERON-TB Gold (QFT®) is an interferon-gamma relative assay
    (IGRA) which is highly specific and sensitive for detection of MTB infection. We report a case of 76-year-old lady
    diagnosed with tuberculous prosthetic joint infection following total knee replacement. Histological examination of
    abnormal synovial tissue taken intraoperatively reveals chronic granulomatous lesion and raised suspicion of
    tuberculous infection in otherwise asymptomatic patient. The tuberculin skin test, MTB acid-fast stain and
    tuberculosis polymerase chain reaction were negative. The diagnosis dilemma was solved with positive result of
    QuantiFERON TB Gold Test. The patient was treated with anti-tuberculous drug without any surgical intervention.
    At five months follow-up, patient was clinically well with no symptoms and signs of infection.
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