Displaying publications 81 - 100 of 1706 in total

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  1. Ling BC
    Quintessence Int, 2004 Apr;35(4):294-8.
    PMID: 15119715
    This article describes a technique of constructing a set of maxillary and mandibular complete dentures in three visits instead of the usual five clinical appointments. This system of complete-denture construction is made possible because of the combined use of visible light-cured material as an impression tray and record base material, as well as the use of new biometric wax occlusion rims. Unlike some earlier techniques that use light-cured resin composites as the denture base materials, this method retains the use of heat-cured polymethylmethacrylate as the denture base material.
    Matched MeSH terms: Time Factors
  2. Sharif Nia H, Gorgulu O, Naghavi N, Froelicher ES, Fomani FK, Goudarzian AH, et al.
    BMC Cardiovasc Disord, 2021 11 23;21(1):563.
    PMID: 34814834 DOI: 10.1186/s12872-021-02372-0
    BACKGROUND: Although various studies have been conducted on the effects of seasonal climate changes or emotional variables on the risk of AMI, many of them have limitations to determine the predictable model. The currents study is conducted to assess the effects of meteorological and emotional variables on the incidence and epidemiological occurrence of acute myocardial infarction (AMI) in Sari (capital of Mazandaran, Iran) during 2011-2018.

    METHODS: In this study, a time series analysis was used to determine the variation of variables over time. All series were seasonally adjusted and Poisson regression analysis was performed. In the analysis of meteorological data and emotional distress due to religious mourning events, the best results were obtained by autoregressive moving average (ARMA) (5,5) model.

    RESULTS: It was determined that average temperature, sunshine, and rain variables had a significant effect on death. A total of 2375 AMI's were enrolled. Average temperate (°C) and sunshine hours a day (h/day) had a statistically significant relationship with the number of AMI's (β = 0.011, P = 0.014). For every extra degree of temperature increase, the risk of AMI rose [OR = 1.011 (95%CI 1.00, 1.02)]. For every extra hour of sunshine, a day a statistically significant increase [OR = 1.02 (95% CI 1.01, 1.04)] in AMI risk occurred (β = 0.025, P = 0.001). Religious mourning events increase the risk of AMI 1.05 times more. The other independent variables have no significant effects on AMI's (P > 0.05).

    CONCLUSION: Results demonstrate that sunshine hours and the average temperature had a significant effect on the risk of AMI. Moreover, emotional distress due to religious morning events increases AMI. More specific research on this topic is recommended.

    Matched MeSH terms: Time Factors
  3. Woon YL, Hor CP, Hussin N, Zakaria A, Goh PP, Cheah WK
    PLoS Negl Trop Dis, 2016 05;10(5):e0004575.
    PMID: 27203726 DOI: 10.1371/journal.pntd.0004575
    BACKGROUND: Dengue infection is the fastest spreading mosquito-borne viral disease, which affects people living in the tropical and subtropical countries. Malaysia had large dengue outbreaks in recent years. We aimed to study the demographics and clinical characteristics associated with dengue deaths in Malaysia.

    METHODS: We conducted a retrospective review on all dengue deaths that occurred nationwide between 1st January 2013 and 31st December 2014. Relevant data were extracted from mortality review reports and investigational forms. These cases were categorized into children (<15 years), adults (15-59 years) and elderly (≥60 years) to compare their clinical characteristics.

    RESULTS: A total of 322 dengue deaths were reviewed. Their mean age was 40.7±19.30 years, half were females and 72.5% were adults. The median durations of first medical contact, and hospitalization were 1 and 3 days, respectively. Diabetes and hypertension were common co-morbidities among adults and elderly. The most common warning signs reported were lethargy and vomiting, with lethargy (p = 0.038) being more common in children, while abdominal pain was observed more often in the adults (p = 0.040). But 22.4% did not have any warning signs. Only 34% were suspected of dengue illness at their initial presentation. More adults developed severe plasma leakage (p = 0.018). More than half (54%) suffered from multi-organ involvement, and 20.2% were free from any organ involvement. Dengue deaths occurred at the median of 3 days post-admission. Dengue shock syndrome (DSS) contributed to more than 70% of dengue deaths, followed by severe organ involvement (69%) and severe bleeding (29.7%).

    CONCLUSION: In Malaysia, dengue deaths occurred primarily in adult patients. DSS was the leading cause of death, regardless of age groups. The atypical presentation and dynamic progression of severe dengue in this cohort prompts early recognition and aggressive intervention to prevent deaths.

    TRIAL REGISTRATION: National Medical Research Registry (NMRR, NMRR-14-1374-23352).
    Matched MeSH terms: Time Factors
  4. Mashitah, Zulfadhly Z, Bhatia S
    Artif Cells Blood Substit Immobil Biotechnol, 1999 Sep-Nov;27(5-6):429-33.
    PMID: 10595444
    The equilibrium sorption capacity of a macro-fungi, Pycnoporus sanguineus biomass was studied using a single-metal system comprising copper ions. The rate and extent for the removal of copper were subjected to environmental parameters such as pH, biomass loading, temperature, and contact time. Results showed that the uptake of copper increased as the pH increased. However, as the biomass loading increased, the amount of metal uptake decreased. Instead, temperature does not have a significant effect on the metal uptake, especially between 30 to 40 degrees C. A maximum adsorption of copper ions was also observed within 15 minutes of reaction time for the entire sample tested. Furthermore, pre-treatment with sodium bicarbonate and boiling water significantly improved the sorption capacity of copper by Pycnoporus sanguineus.
    Matched MeSH terms: Time Factors
  5. Kuah KB
    Med J Malaysia, 1975 Mar;30(3):223-6.
    PMID: 1160683
    Matched MeSH terms: Time Factors
  6. Bastion MLC, Barkeh HJ, Muhaya M
    Med J Malaysia, 2005 Oct;60(4):502-4.
    PMID: 16570717
    A 36 year-old Malay lady with diabetes mellitus in pregnancy and poorly controlled hypertension developed rapid progression of diabetic retinopathy from no retinopathy to florid proliferative retinopathy over three months in her right eye. She had subsequent loss of vision due to vitreous haemorrhage in the peri-partum period. She had good final visual acuity with quiescent retinopathy following pars planar vitrectomy. A similar course was avoided in the left eye by timely pan retinal photocoagulation.
    Matched MeSH terms: Time Factors
  7. Liam CK, Lim KH, Wong CM
    Asian Pac J Allergy Immunol, 2000 Sep;18(3):135-40.
    PMID: 11270467
    This study aimed to evaluate dry powder inhaler naive asthmatic patients' perception and preference of the Accuhaler, a multidose dry powder inhaler and the pressurized metered dose inhaler (pMDI). After the first instruction, 66.7% of 48 patients enrolled in the study could demonstrate the correct use of the Accuhaler. When the patients were asked to compare the pMDI and the Accuhaler after using the Accuhaler to administer salmeterol for 4 weeks, the Accuhaler scored significantly better than the pMDI for the following features: knowing how many doses are left, presence of an attached cover, taste, instruction for use, attractiveness, ease of use, ease of holding, shape, and comfortable mouthpiece. The pMDI scored better to the Accuhaler in terms of size. More patients preferred the Accuhaler than the pMDI; the presence of a dose counter and perceived ease of use were the main reasons cited for their preference for the Accuhaler.
    Study site: Asthma Clinic, University of Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
    Matched MeSH terms: Time Factors
  8. Chow WL, Salleh NAM, Kang TS
    Ther Innov Regul Sci, 2024 May;58(3):528-538.
    PMID: 38376698 DOI: 10.1007/s43441-024-00620-x
    BACKGROUND: Drug approval lag is the time difference for new medicine to obtain marketing authorization approval in the study country compared to the first global approval. Drug approval lag delays the availability of innovative medicine to patients. This may lead to delay in treatment and severe public health implications. The study aimed to determine drug approval lag in Malaysia, the factors associated with drug approval lag (drug characteristics, regulatory factors and applicant type) and the association of the submission lag and review time with the regulation change.

    METHODS: All new pharmaceutical products approved between January 2015 and March 2021 were examined (n = 136) using publicly available information. Factors associated with drug approval lag were determined using multiple linear regression.

    RESULTS: The median drug approval lag was 855 days. Drug approval lag was associated with drug characteristics and regulatory factors. Median submission lag and median review time for products which fulfilled the requirement for the new regulations (Conditional Registration/ Facilitated Registration Pathway) were shorter compared to products which did not fulfil the requirement.

    CONCLUSION: Drug approval lag may delay the access of innovative medicine to patients, and this may lead to an increase in morbidity, mortality and healthcare costs. Good Regulatory Practices ensure efficient and transparent regulatory system which support the public health policy objectives in the most efficient way. The new regulations in Malaysia reduced the median submission lag and review time. The findings may be useful for regulators to consider for future policy development for medication access.

    Matched MeSH terms: Time Factors
  9. Lee JN, Che Abd Rahim Mohamed
    Sains Malaysiana, 2011;40:1179-1186.
    The aim of this study was to determine the accumulation of settling particles in coral reefs of Peninsular Malaysia. Settling particles were collected from the coral reefs of Port Dickson, Pulau Langkawi, Pulau Tioman, Pulau Redang and Pulau Tinggi from 2005 to 2008. The average total settling particles in Pulau Langkawi and Port Dickson was 49.8 mg/cm2/day, while for Pulau Tioman, Pulau Redang, and Pulau Tinggi was 3.5 mg/cm2/day. The results showed that accumulations rate in west coast were higher than east coast of Peninsular Malaysia. However, Pulau Tioman in the east coast received high accumulations rate of settling particles in certain times of the year due to sediment resuspension at shallow reefs caused by high energy seasonal yearly wave and monsoon.
    Matched MeSH terms: Time Factors
  10. Haruna Ahmed O, Aainaa Hasbullah N, Ab Majid NM
    ScientificWorldJournal, 2010 Oct 12;10:1988-95.
    PMID: 20953548 DOI: 10.1100/tsw.2010.196
    The world's tropical rainforests are decreasing at an alarming rate as they are converted to agricultural land, pasture, and plantations. Decreasing tropical forests affect global warming. As a result, afforestation progams have been suggested to mitigate this problem. The objective of this study was to determine the carbon and phosphorus accumulation of a rehabilitated forest of different ages. The size of the study area was 47.5 ha. Soil samples were collected from the 0-, 6-, 12-, and 17-year-old rehabilitated forest. Twenty samples were taken randomly with a soil auger at depths of 0-20 and 20-40 cm. The procedures outlined in the Materials and Methods section were used to analyze the soil samples for pH, total C, organic matter, total P, C/P ratio, yield of humic acid (HA), and cation exchange capacity (CEC). The soil pH decreased significantly with increasing age of forest rehabilitation regardless of depth. Age did not affect CEC of the rehabilitated forest. Soil organic matter (SOM), total C, and total P contents increased with age. However, C/P ratio decreased with time at 0-20 cm. Accumulation of HA with time and soil depth was not consistent. The rehabilitated forest has shown signs of being a C and P sink.
    Matched MeSH terms: Time Factors
  11. Khayoon MS, Hameed BH
    Bioresour Technol, 2011 Oct;102(19):9229-35.
    PMID: 21840708 DOI: 10.1016/j.biortech.2011.07.035
    Oxygenated fuel additives can be produced by acetylation of glycerol. A 91% glycerol conversion with a selectivity of 38%, 28% and 34% for mono-, di- and triacetyl glyceride, respectively, was achieved at 120 °C and 3 h of reaction time in the presence of a catalyst derived from activated carbon (AC) treated with sulfuric acid at 85 °C for 4h to introduce acidic functionalities to its surface. The unique catalytic activity of the catalyst, AC-SA5, was attributed to the presence of sulfur containing functional groups on the AC surface, which enhanced the surface interaction between the glycerol molecule and acyl group of the acetic acid. The catalyst was reused in up to four consecutive batch runs and no significant decline of its initial activity was observed. The conversion and selectivity variation during the acetylation is attributed to the reaction time, reaction temperature, catalyst loading and glycerol to acetic acid molar ratio.
    Matched MeSH terms: Time Factors
  12. Loh LC, Yii CT, Lai KK, Seevaunnamtum SP, Pushparasah G, Tong JM
    Clin Microbiol Infect, 2006 Jun;12(6):597-8.
    PMID: 16700715
    Matched MeSH terms: Time Factors
  13. Marina MB, Gendeh BS
    Med J Malaysia, 2006 Mar;61(1):94-6.
    PMID: 16708742
    Reported cases of acquired posterior choanal atresia are very few in the English literature. A case of acquired posterior choanal atresia post radiotherapy is reported which was treated by endonasal endoscopic repair using microdebrider with untoward effect.
    Matched MeSH terms: Time Factors
  14. Farida Jamal, Mohd Salleh Mohd Yasin, Zooraidah Zainal, Hamid Arshat
    Malays J Reprod Health, 1983 Jan;1(1):55-9.
    PMID: 12279890
    Matched MeSH terms: Time Factors
  15. Lee SW, Liong ML, Yuen KH, Leong WS, Chee C, Cheah PY, et al.
    Am J Med, 2008 Jan;121(1):79.e1-7.
    PMID: 18187077 DOI: 10.1016/j.amjmed.2007.07.033
    Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) afflicts 2%-10% of adult men. Available therapies offer little or no proven benefit. Because acupuncture represents an attractive "natural" therapy, we compared the efficacy of acupuncture to sham acupuncture for CP/CPPS.
    Matched MeSH terms: Time Factors
  16. Chuah TS, Loh JY, Hii YS
    Bull Environ Contam Toxicol, 2007 Nov;79(5):557-61.
    PMID: 17639329
    Acute and chronic effects of insecticide-endosulfan on the survival and reproduction performance of Moina macrocopa were determined in a laboratory study. Endosulfan concentrations that cause 50% mortality (LC50) after exposure for 24 and 48 h were 3.34 and 0.16 mg L(-1), respectively. Average longevity, initial age of reproduction and intrinsic rate of natural increase were reduced at 0.002 mg L(-1). Fecundity was greatly reduced by about 70% at 0.0004 mg L(-1) and approximately 97% at 0.002 mg L(-1) as compared to control organisms throughout the whole life span of 15 days. If environmental concentration of endosulfan do not exceed 0.0004 mg L(-1), application of this insecticide is unlikely to induce detrimental effects on these cladoceran populations in agro-ecosystem.
    Matched MeSH terms: Time Factors
  17. Hor SY, Ahmad M, Farsi E, Lim CP, Asmawi MZ, Yam MF
    J Ethnopharmacol, 2011 Oct 11;137(3):1067-76.
    PMID: 21767625 DOI: 10.1016/j.jep.2011.07.007
    Coriolus versicolor, which is known as Yun Zhi, is one of the commonly used Chinese medicinal herbs. Recent studies have demonstrated its antitumor activities on cancer cells which led to its widespread use in cancer patient. However, little toxicological information is available regarding its safety. The present study evaluated the potential toxicity of Coriolus versicolor standardized water extract after acute and subchronic administration in rats.
    Matched MeSH terms: Time Factors
  18. Lee HY, Jayalakshmi P, Noori SH
    Med J Malaysia, 1993 Mar;48(1):17-27.
    PMID: 8341168
    A 1 year review of 529 cases of acute appendicitis, treated at the University Hospital in 1990, was performed. Perforation rate was 23.7% and delay in diagnosis was found to be significant. Patients above 50 years of age were particularly at risk. Diagnostic error was 19.3% and it was a problem not only in young women but also in children. Temperature and rectal examinations were not found to be helpful in the diagnosis in contrast to leukocytosis. Waiting time for operation was long (median 7 hours), be it for a perforated or a nonperforated appendicitis.
    Matched MeSH terms: Time Factors
  19. Ling HS, Chung BK, Chua PF, Gan KX, Ho WL, Ong EYL, et al.
    BMC Cardiovasc Disord, 2020 12 07;20(1):511.
    PMID: 33287705 DOI: 10.1186/s12872-020-01793-7
    BACKGROUND: Data on clinical characteristics of acute decompensated heart failure (ADHF) in Malaysia especially in East Malaysia is lacking.

    METHODS: This is a prospective observational study in Sarawak General Hospital, Medical Department, from October 2017 to September 2018. Patients with primary admission diagnosis of ADHF were recruited and followed up for 90 days. Data on patient's characteristics, precipitating factors, medications and short-term clinical outcomes were recorded.

    RESULTS: Majority of the patients were classified in lower socioeconomic group and the mean age was 59 years old. Hypertension, diabetes mellitus and dyslipidaemia were the common underlying comorbidities. Heart failure with ischemic aetiology was the commonest ADHF admission precipitating factor. 48.6% of patients were having preserved ejection fraction HF and the median NT-ProBNP level was 4230 pg/mL. Prescription rate of the evidence-based heart failure medication was low. The in-patient mortality and the average length of hospital stay were 7.5% and 5 days respectively. 43% of patients required either ICU care or advanced cardiopulmonary support. The 30-day, 90-day mortality and readmission rate were 13.1%, 11.2%, 16.8% and 14% respectively.

    CONCLUSION: Comparing with the HF data from West and Asia Pacific, the short-term mortality and readmission rate were high among the ADHF patients in our study cohort. Maladaptation to evidence-based HF prescription and the higher prevalence of cardiovascular risk factors in younger patients were among the possible issues to be addressed to improve the HF outcome in regions with similar socioeconomic background.

    Matched MeSH terms: Time Factors
  20. Md Ralib A, Mat Nor MB
    J Crit Care, 2015 Jun;30(3):636-42.
    PMID: 25701354 DOI: 10.1016/j.jcrc.2015.01.018
    Acute kidney injury (AKI) is common and carries a high mortality rate. Most epidemiological studies were retrospective and were done in Western populations. We aim to assess its incidence using both urine output and creatinine criteria and its association with risk factors and outcome.
    Matched MeSH terms: Time Factors
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