Displaying publications 1 - 20 of 151 in total

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  1. Cheah PL, Looi LM, Horton S
    Am J Clin Pathol, 2017 12 20;149(1):1-7.
    PMID: 29267843 DOI: 10.1093/ajcp/aqx088
    Objective: To examine the cost of operating an anatomic pathology laboratory in a teaching hospital in Malaysia. Once the cost is determined, compare it with the costs of operating other laboratories in the same hospital, and operating anatomic pathology laboratories in other countries.

    Methods: Cost and workload data were obtained from hospital records for 2015. Time allocation of staff between laboratory testing and other activities was determined using assumptions from published workload studies.

    Results: The laboratory received 20,093 cases for testing in 2015, and total expenditures were US $1.20 million, ie, $61.97 per case. The anatomic pathology laboratory accounted for 5.2% of the laboratory budget at the hospital, compared to 64.3% for the clinical laboratory and 30.5% for the microbiology laboratory. We provide comparisons to a similar laboratory in the United States.

    Conclusions: Anatomic pathology is more costly than other hospital laboratories due to the labor-intensive work, but is essential, particularly for cancer diagnoses and treatment.

    Matched MeSH terms: Costs and Cost Analysis
  2. Low KS, Lee CK, Lee CY
    Appl Biochem Biotechnol, 2001 Jan;90(1):75-87.
    PMID: 11257809
    The potential of quaternized wood (QW) chips in removing hexavalent chromium from synthetic solution and chrome waste under both batch and continuous-flow conditions was investigated. Sorption was found to be dependent on pH, metal concentration, and temperature. QW chips provide higher sorption capacity and wider pH range compared with untreated wood chips. The equilibrium data could be fitted into the Langmuir isotherm model, and maximum sorption capacities were calculated to be 27.03 and 25.77 mg/g in synthetic chromate solution and chrome waste, respectively. The presence of sulfate in high concentration appeared to suppress the uptake of chromium by QW chips. Column studies showed that bed depth influenced the breakthrough time greatly whereas flow rate of influent had little effect on its sorption on the column.
    Matched MeSH terms: Costs and Cost Analysis
  3. Permsuwan U, Chaiyakunapruk N, Dilokthornsakul P, Thavorn K, Saokaew S
    Appl Health Econ Health Policy, 2016 Jun;14(3):281-92.
    PMID: 26961276 DOI: 10.1007/s40258-016-0228-3
    BACKGROUND: Even though Insulin glargine (IGlar) has been available and used in other countries for more than a decade, it has not been adopted into Thai national formulary. This study aimed to evaluate the long-term cost effectiveness of IGlar versus neutral protamine Hagedorn (NPH) insulin in type 2 diabetes from the perspective of Thai Health Care System.

    METHODS: A validated computer simulation model (the IMS CORE Diabetes Model) was used to estimate the long-term projection of costs and clinical outcomes. The model was populated with published characteristics of Thai patients with type 2 diabetes. Baseline risk factors were obtained from Thai cohort studies, while relative risk reduction was derived from a meta-analysis study conducted by the Canadian Agency for Drugs and Technology in Health. Only direct costs were taken into account. Costs of diabetes management and complications were obtained from hospital databases in Thailand. Both costs and outcomes were discounted at 3 % per annum and presented in US dollars in terms of 2014 dollar value. Incremental cost-effectiveness ratio (ICER) was calculated. One-way and probabilistic sensitivity analyses were also performed.

    RESULTS: IGlar is associated with a slight gain in quality-adjusted life years (0.488 QALYs), an additional life expectancy (0.677 life years), and an incremental cost of THB119,543 (US$3522.19) compared with NPH insulin. The ICERs were THB244,915/QALY (US$7216.12/QALY) and THB176,525/life-year gained (LYG) (US$5201.09/LYG). The ICER was sensitive to discount rates and IGlar cost. At the acceptable willingness to pay of THB160,000/QALY (US$4714.20/QALY), the probability that IGlar was cost effective was less than 20 %.

    CONCLUSIONS: Compared to treatment with NPH insulin, treatment with IGlar in type 2 diabetes patients who had uncontrolled blood glucose with oral anti-diabetic drugs did not represent good value for money at the acceptable threshold in Thailand.

    Matched MeSH terms: Costs and Cost Analysis
  4. Khairiyah AM, Razak IA, Raja-Latifah RJ, Tan BS, Norain AT, Noor-Aliyah I, et al.
    Asia Pac J Public Health, 2009 Apr;21(2):184-95.
    PMID: 19190002 DOI: 10.1177/1010539509331788
    The objective of this study is to share cost analysis methodology and to obtain cost estimates for posterior restorations in public sector dental clinics. Two urban and 2 rural dental clinics in Selangor state were selected. Only cases of 1 posterior restoration per visit by dental officers were included over 6 months. One capsulated amalgam type, 1 capsulated tooth-colored, and 1 non-capsulated tooth-colored material were selected. A clinical pathway form was formulated to collect data per patient. Annual capital and recurrent expenditures were collected per clinic. The mean cost of an amalgam restoration was RM 30.96 (sdRM 7.86); and tooth-colored restorations ranged from RM 33.00 (sdRM 8.43) to RM 41.10 (sdRM 10.61). Wherein 1 USD = RM 2.8. Restoration costs were 35% to 55% higher in clinics in rural areas than in urban areas. The findings demonstrate economy of scale for clinic operation and restoration costs with higher patient load. Costs per restoration were higher in rural than in urban dental clinics. More studies are recommended to address the dearth of dental costs data in Malaysia.
    Matched MeSH terms: Costs and Cost Analysis
  5. Packierisamy PR, Ng CW, Dahlui M, Venugopalan B, Halasa YA, Shepard DS
    Asia Pac J Public Health, 2015 Nov;27(8 Suppl):73S-78S.
    PMID: 26047628 DOI: 10.1177/1010539515589339
    We examined variations in dengue vector control costs and resource consumption between the District Health Departments (DHDs) and Local Authorities (LAs) to assist informed decision making as to the future roles of these agencies in the delivery of dengue vector control services in Malaysia. Data were collected from the vector control units of DHDs and LAs in 8 selected districts. We captured costs and resource consumption in 2010 for premise inspection for mosquito breeding sites, fogging to destroy adult mosquitoes and larviciding of potential breeding sites. Overall, DHDs spent US$5.62 million or US$679 per case and LAs spent US$2.61 million or US$499 per case. The highest expenditure for both agencies was for fogging, 51.0% and 45.8% of costs for DHDs and LAs, respectively. The DHDs had higher resource costs for human personnel, vehicles, pesticides, and equipment. The findings provide some evidence to rationalize delivery of dengue vector control services in Malaysia.
    Matched MeSH terms: Costs and Cost Analysis
  6. Loo JL, Keng SL, Ramírez-Espinosa IG, Nor Hadi NM, Ramírez-Gutiérrez JA, Shoesmith W
    Asia Pac Psychiatry, 2021 Mar;13(1):e12437.
    PMID: 33188568 DOI: 10.1111/appy.12437
    BACKGROUND: Borderline personality disorder (BPD) contributes to suicide-related morbidity and mortality and requires more intensive psychotherapeutic resources due to its high mental health service usage. Accessibility to an evidence-based treatment program is a cornerstone to support patients with BPD and part of broader suicide prevention efforts as well as improving their quality of life.

    AIMS: In this article, the authors aim to discuss and review available dialectical behavior therapy (DBT) and DBT-informed services of selected countries in the Asia-Pacific Rim, namely Singapore, Malaysia, and Mexico.

    MATERIALS & METHODS: We contacted providers of different services and gathered information on the process of setting up the service and adapting the treatment, in addition to reviewing the available literature published in the countries.

    RESULTS: To date, there have been a pair of DBT-informed services in Singapore, four in Malaysia, and several in Mexico with a few of them offering standard DBT. Different efforts have been put in place to increase the accessibility to training and also the number of DBT practitioners.

    DISCUSSION: Important considerations during the process of setting up new services include the use of domestic examples and local language that are contextually appropriate for the local community. Selected challenges faced in common include shortage of workforce, affordability of training programs, and the need for language adaptation with or without translation.

    CONCLUSION: Further long-term evaluation of locally adapted DBT-informed mental health services will help to elucidate the effectiveness and efficacy of the program which will potentially serve as a guide for other resource-scarce regions.

    Matched MeSH terms: Costs and Cost Analysis
  7. Azlan CA, Mohd Nasir NF, Saifizul AA, Faizul MS, Ng KH, Abdullah BJ
    Australas Phys Eng Sci Med, 2007 Dec;30(4):288-91.
    PMID: 18274069
    Percutaneous image-guided needle biopsy is typically performed in highly vascular organs or in tumours with rich macroscopic and microscopic blood supply. The main risks related to this procedure are haemorrhage and implantation of tumour cells in the needle tract after the biopsy needle is withdrawn. From numerous conducted studies, it was found that heating the needle tract using alternating current in radiofrequency (RF) range has a potential to minimize these effects. However, this solution requires the use of specially designed needles, which would make the procedure relatively expensive and complicated. Thus, we propose a simple solution by using readily available coaxial core biopsy needles connected to a radiofrequency ablation (RFA) generator. In order to do so, we have designed and developed an adapter to interface between these two devices. For evaluation purpose, we used a bovine liver as a sample tissue. The experimental procedure was done to study the effect of different parameter settings on the size of coagulation necrosis caused by the RF current heating on the subject. The delivery of the RF energy was varied by changing the values for delivered power, power delivery duration, and insertion depth. The results showed that the size of the coagulation necrosis is affected by all of the parameters tested. In general, the size of the region is enlarged with higher delivery of RF power, longer duration of power delivery, and shallower needle insertion and become relatively constant after a certain value. We also found that the solution proposed provides a low cost and practical way to minimizes unwanted post-biopsy effects.
    Matched MeSH terms: Costs and Cost Analysis
  8. Flaherty G, Chai SY, Hallahan B
    BJPsych Bull, 2020 Apr 13.
    PMID: 32279684 DOI: 10.1192/bjb.2020.32
    For a person with mental illness, travelling abroad can be challenging but it can be easier when the traveller and healthcare practitioner have a clear understanding of the likely impact of travel on the illness and of the illness on the travel experience. Travel may also precipitate first presentations of mental illness or unmask previously undiagnosed mental disorders. We propose that mental health problems should receive greater recognition in travel medicine and that psychiatrists should collaborate more closely with travel medicine clinicians to ensure that their patients benefit from the opportunities afforded by international travel.
    Matched MeSH terms: Costs and Cost Analysis
  9. Mohd-Dom T, Ayob R, Mohd-Nur A, Abdul-Manaf MR, Ishak N, Abdul-Muttalib K, et al.
    BMC Oral Health, 2014 May 20;14:56.
    PMID: 24884465 DOI: 10.1186/1472-6831-14-56
    BACKGROUND: The objective of this paper is to quantify the cost of periodontitis management at public sector specialist periodontal clinic settings and analyse the distribution of cost components.

    METHODS: Five specialist periodontal clinics in the Ministry of Health represented the public sector in providing clinical and cost data for this study. Newly-diagnosed periodontitis patients (N = 165) were recruited and followed up for one year of specialist periodontal care. Direct and indirect costs from the societal viewpoint were included in the cost analysis. They were measured in 2012 Ringgit Malaysia (MYR) and estimated from the societal perspective using activity-based and step-down costing methods, and substantiated by clinical pathways. Cost of dental equipment, consumables and labour (average treatment time) for each procedure was measured using activity-based costing method. Meanwhile, unit cost calculations for clinic administration, utilities and maintenance used step-down approach. Patient expenditures and absence from work were recorded via diary entries. The conversion from MYR to Euro was based on the 2012 rate (1€ = MYR4).

    RESULTS: A total of 2900 procedures were provided, with an average cost of MYR 2820 (€705) per patient for the study year, and MYR 376 (€94) per outpatient visit. Out of this, 90% was contributed by provider cost and 10% by patient cost; 94% for direct cost and 4% for lost productivity. Treatment of aggressive periodontitis was significantly higher than for chronic periodontitis (t-test, P = 0.003). Higher costs were expended as disease severity increased (ANOVA, P = 0.022) and for patients requiring surgeries (ANOVA, P Cost of providing dental treatment for periodontitis patients at public sector specialist settings were substantial and comparable with some non-communicable diseases. These findings provide basis for identifying potential cost-reducing strategies, estimating economic burden of periodontitis management and performing economic evaluation of the specialist periodontal programme.

    Matched MeSH terms: Costs and Cost Analysis
  10. Wong LP, Atefi N, AbuBakar S
    BMC Public Health, 2016 08 12;16:780.
    PMID: 27520825 DOI: 10.1186/s12889-016-3409-y
    BACKGROUND: As there is no specific treatment for dengue, early detection and access to proper treatment may lower dengue fatality. Therefore, having new techniques for the early detection of dengue fever, such as the use of dengue test kit, is vitally important. The aims of the study were: 1) identify factors associated with acceptance of a home self-test kit for dengue fever if the dengue test is available to the public and 2) find out the characteristics of the test kits that influence the use of the dengue test kit.

    METHODS: A national telephone survey was carried out with 2,512 individuals of the Malaysian public aged 18-60 years old. Individuals were contacted by random digit dialling covering the whole of Malaysia from February 2012 to June 2013.

    RESULTS: From 2,512 participants, 6.1 % reported to have heard of the availability of the dengue home test kit and of these, 44.8 % expressed their intention to use the test kit if it was available. Multivariate logistic regressions indicated that participants with primary (OR: 0.65; 95 % CI: 0.43-0.89; p = 0.02, vs. tertiary educational level) and secondary educational levels (OR: 0.73; 95 % CI: 0.57-0.90; p = 0.01, vs. tertiary educational level) were less likely than participants with a tertiary educational level to use a home self-testing dengue kit for dengue if the kit was available. Participants with lower perceived barriers to dengue prevention (level of barriers 0-5) were less likely (OR: 0.67, 95 % CI: 0.53-0.85, p 

    Matched MeSH terms: Costs and Cost Analysis
  11. Chow CK, Nguyen TN, Marschner S, Diaz R, Rahman O, Avezum A, et al.
    BMJ Glob Health, 2020 11;5(11).
    PMID: 33148540 DOI: 10.1136/bmjgh-2020-002640
    OBJECTIVES: We aimed to examine the relationship between access to medicine for cardiovascular disease (CVD) and major adverse cardiovascular events (MACEs) among people at high risk of CVD in high-income countries (HICs), upper and lower middle-income countries (UMICs, LMICs) and low-income countries (LICs) participating in the Prospective Urban Rural Epidemiology (PURE) study.

    METHODS: We defined high CVD risk as the presence of any of the following: hypertension, coronary artery disease, stroke, smoker, diabetes or age >55 years. Availability and affordability of blood pressure lowering drugs, antiplatelets and statins were obtained from pharmacies. Participants were categorised: group 1-all three drug types were available and affordable, group 2-all three drugs were available but not affordable and group 3-all three drugs were not available. We used multivariable Cox proportional hazard models with nested clustering at country and community levels, adjusting for comorbidities, sociodemographic and economic factors.

    RESULTS: Of 163 466 participants, there were 93 200 with high CVD risk from 21 countries (mean age 54.7, 49% female). Of these, 44.9% were from group 1, 29.4% from group 2 and 25.7% from group 3. Compared with participants from group 1, the risk of MACEs was higher among participants in group 2 (HR 1.19, 95% CI 1.07 to 1.31), and among participants from group 3 (HR 1.25, 95% CI 1.08 to 1.50).

    CONCLUSION: Lower availability and affordability of essential CVD medicines were associated with higher risk of MACEs and mortality. Improving access to CVD medicines should be a key part of the strategy to lower CVD globally.

    Matched MeSH terms: Costs and Cost Analysis
  12. Sruamsiri R, Wagner AK, Ross-Degnan D, Lu CY, Dhippayom T, Ngorsuraches S, et al.
    BMJ Open, 2016;6(3):e008671.
    PMID: 26988346 DOI: 10.1136/bmjopen-2015-008671
    In 2008, the Thai government introduced the 'high-cost medicines E2 access program' as a part of the National List of Essential Medicines to increase patient access to medicines, improve clinical outcomes and make medicines more affordable. Our objective was to examine whether the 'high-cost medicines E2 access program' achieved its goals.
    Matched MeSH terms: Costs and Cost Analysis
  13. Ng JYS, Clement IJ, Jimeno C, Sy RA, Mirasol R, De La Pena P, et al.
    BMJ Open, 2020 07 28;10(7):e025696.
    PMID: 32723733 DOI: 10.1136/bmjopen-2018-025696
    INTRODUCTION: Diabetes and its complications are a major cause of morbidity and mortality in the Philippines. The prevalence of diabetes in the Philippines has increased from 3.4 million in 2010 to 3.7 million in 2017. The government has formulated strategies to control this increase, for example, through its non-communicable disease prevention and control plan. However, there is scarce research on the financial burden of diabetes. Filling this gap may further help policymakers to make informed decisions while developing and implementing resource planning for relevant interventions. The primary objective of the current study is to estimate the direct medical costs associated with type 2 diabetes mellitus (T2DM).

    METHODS AND ANALYSIS: This is a 1-year retrospective cohort study of patients with T2DM in 2016. Data will be collected from: (1) hospital databases from public institutions to estimate the cost of diabetes treatment and (2) physician interviews to estimate the cost of management of diabetes in outpatient care. We will perform descriptive and comparative analyses on direct medical costs and healthcare resource utilisation, stratified by the presence of diabetes-associated complications.

    ETHICS AND DISSEMINATION: Research ethics board approval has been obtained from the Department of Health Single Joint Research Ethics Board and Cardinal Santos Medical Center Research Ethics Review Committee. Findings from the study will be reported in peer-reviewed scientific journals and local researcher meetings.

    Matched MeSH terms: Costs and Cost Analysis
  14. Lee JY, Chan CKY, Chua SS, Paraidathathu T, Lee KK, Tan CSS, et al.
    BMJ Open, 2019 Oct 22;9(10):e026575.
    PMID: 31640990 DOI: 10.1136/bmjopen-2018-026575
    OBJECTIVE: Telemedicine has been promoted as an economical and effective way to enhance patient care, but its acceptance among patients in low-income and middle-income countries is poorly understood. This study is aimed to explore the experiences and perspectives of people with type 2 diabetes mellitus that used telemedicine to manage their condition.

    DESIGN: In-depth and focus group interviews were conducted with participants who have engaged in telemedicine. Questions included were participants' perception on the programme being used, satisfaction as well as engagement with the telemedicine programme. All interviews and focus groups were audio-recorded and transcribed verbatim. Data were analysed using a thematic approach.

    PARTICIPANTS AND SETTING: People with type 2 diabetes (n=48) who participated in a randomised controlled study which examined the use of telemedicine for diabetes management were recruited from 11 primary care clinics located within the Klang Valley.

    RESULTS: Twelve focus groups and two in-depth interviews were conducted. Four themes emerged from the analysis: (1) generational difference; (2) independence and convenience, (3) sharing of health data and privacy and (4) concerns and challenges. The main obstacles found in patients using the telemedicine systems were related to internet connectivity and difficulties experienced with system interface. Cost was also another significant concern raised by participants. Participants in this study were primarily positive about the benefits of telemedicine, including its ability to provide real-time data and disease monitoring and the reduction in clinic visits.

    CONCLUSION: Despite the potential benefits of telemedicine in the long-term care of diabetes, there are several perceived barriers that may limit the effectiveness of this technology. As such, collaboration between educators, healthcare providers, telecommunication service providers and patients are required to stimulate the adoption and the use of telemedicine.NCT0246680.

    Matched MeSH terms: Costs and Cost Analysis
  15. Mburu G, Igbinedion E, Lim SH, Paing AZ, Yi S, Elbe S, et al.
    BMJ Open, 2020 Jan 08;10(1):e031844.
    PMID: 31919124 DOI: 10.1136/bmjopen-2019-031844
    INTRODUCTION: Private sector provision of HIV treatment is increasing in low-income and middle-income countries (LMIC). However, there is limited documentation of its outcomes. This protocol reports a proposed systematic review that will synthesise clinical outcomes of private sector HIV treatment in LMIC.

    METHODS AND ANALYSIS: This review will be conducted in accordance with the preferred reporting items for systematic review and meta-analyses protocols. Primary outcomes will include: (1) proportion of eligible patients initiating antiretroviral therapy (ART); (2) proportion of those on ART with <1000 copies/mL; (3) rate of all-cause mortality among ART recipients. Secondary outcomes will include: (1) proportion receiving Pneumocystis jiroveci pneumonia prophylaxis; (2) proportion with >90% ART adherence (based on any measure reported); (3) proportion screened for non-communicable diseases (specifically cervical cancer, diabetes, hypertension and mental ill health); (iv) proportion screened for tuberculosis. A search of five electronic bibliographical databases (Embase, Medline, PsychINFO, Web of Science and CINAHL) and reference lists of included articles will be conducted to identify relevant articles reporting HIV clinical outcomes. Searches will be limited to LMIC. No age, publication date, study-design or language limits will be applied. Authors of relevant studies will be contacted for clarification. Two reviewers will independently screen citations and abstracts, identify full text articles for inclusion, extract data and appraise the quality and bias of included studies. Outcome data will be pooled to generate aggregative proportions of primary and secondary outcomes. Descriptive statistics and a narrative synthesis will be presented. Heterogeneity and sensitivity assessments will be conducted to aid interpretation of results.

    ETHICS AND DISSEMINATION: The results of this review will be disseminated through a peer-reviewed scientific manuscript and at international scientific conferences. Results will inform quality improvement strategies, replication of identified good practices, potential policy changes, and future research.

    PROSPERO REGISTRATION NUMBER: CRD42016040053.

    Matched MeSH terms: Costs and Cost Analysis
  16. Kumar R, Singh L, Zularisam AW, Hai FI
    Bioresour Technol, 2016 Nov;220:537-542.
    PMID: 27614156 DOI: 10.1016/j.biortech.2016.09.003
    This study aims to investigate the potential of porous Co3O4 nanorods as the cathode catalyst for oxygen reduction reaction (ORR) in aqueous air cathode microbial fuel cells (MFCs). The porous Co3O4 nanorods were synthesized by a facile and cost-effective hydrothermal method. Three different concentrations (0.5mg/cm(2), 1mg/cm(2), and 2mg/cm(2)) of Co3O4 nanorods coated on graphite electrodes were used to test its performance in MFCs. The results showed that the addition of porous Co3O4 nanorods enhanced the electrocatalytic activity and ORR kinetics significantly and the overall resistance of the system was greatly reduced. Moreover, the MFC with a higher concentration of the catalyst achieved a maximum power density of 503±16mW/m(2), which was approximately five times higher than the bare graphite electrode. The improved catalytic activity of the cathodes could be due to the porous properties of Co3O4 nanorods that provided the higher number of active sites for oxygen.
    Matched MeSH terms: Costs and Cost Analysis
  17. De Zulueta J, Lachance F
    Bull World Health Organ, 1956;15(3-5):673-93.
    PMID: 13404443
    A first experiment on malaria control in the interior of Borneo by spraying with residual insecticides is described. The work was carried out in the isolated, sparsely populated valleys of the Baram River and its tributary, the Tinjar, in northern Sarawak. The experimental area was divided into three parts: a DDT test area, where a 75% suspension of wettable powder was applied at the rate of 2 g of DDT per m(2) of surface; a BHC test area, where a 50% suspension of wettable powder was applied at the rate of 0.10 g of gamma isomer per m(2); and a check area.Entomological investigations made before the spraying operations were started showed that Anopheles leucosphyrus Dönitz, 1901 was the main malaria vector in both the test and the check areas. Out of a total of 7568 A. leucosphyrus dissected, 30 gland infections were detected-a sporozoite-rate of 0.40%. A. barbirostris was found to be a secondary vector throughout the experimental area.THE RESULTS OF INSECTICIDE SPRAYING WERE SATISFACTORY: in the DDT test area, the spleen-rate fell from 51.8% to 25.1%, and the parasite-rate from 35.6% to 1.6%, in 21 months, and a similar reduction in the rates was observed in the BHC test area. In the check area, the spleen- and parasite-rates rose during the period of observations. It is considered that if such a degree of control can be obtained in 21 months, complete eradication can be expected in the near future.Although BHC spraying proved effective, the fact that it has to be repeated every three months makes it impracticable in the interior of Sarawak, where communications are very poor and difficulties of transport very great. DDT spraying, which need only be done twice a year, is therefore to be preferred. The cost of the DDT operations-US$ 0.45 per person protected per year-is comparatively high, owing to the difficulty of communications and to the necessity for spraying not only the village "longhouses", but also the temporary shelters which the semi-nomadic people in the interior of Sarawak build each year in the rice-fields.
    Matched MeSH terms: Costs and Cost Analysis*
  18. Rajananda V, Nair NK, Navaratnam V
    Bull Narc, 1985 Jan-Mar;37(1):35-47.
    PMID: 4063572
    The authors selected 38 thin-layer-chromatography (TLC) systems described in the available literature published over the last 10 years and evaluated those systems with respect to their suitability for detection and identification of opiates in urine, opium and heroin, as well as adulterants in heroin. A total of 14 substances: 8 opiates (morphine, 6-monoacetylmorphine, diacetylmorphine, codeine, acetylcodeine, noscapine, papaverine and thebaine) and 6 adulterants (ephedrine, quinine, methadone, caffeine, cocaine and strychnine) were used as test samples for this research. Using laboratory-coated plates and pre-coated plates, 15 and 13 TLC systems, respectively, were found to be able to detect and identify morphine and codeine in urine without interference from the remaining 12 substances. For the detection of opiates in opium samples as well as opiates and adulterants in illicit heroin samples the TLC system: chloroform-n-hexane-triethylamine (9:9:4) which was developed by the National Drug Research Centre, Penang, Malaysia, was found to be most suitable on both laboratory-coated and pre-coated plates. In addition, the following two systems, one on laboratory-coated plates--hexane-chloroform-diethylamine (50:30:7)--and the other on pre-coated plates--benzene-dioxane-ethanol-ammonia (50:40:5:5; T-7)--were also found to be among most suitable TLC systems for the analysis of opiates in opium samples. The article also presents the relative cost of each of the 38 evaluated TLC systems.
    Matched MeSH terms: Costs and Cost Analysis
  19. Yong, Othman
    MyJurnal
    This study examines the issues of winner's curse, size effect and bandwagon effect in explaining the under-pricing phenomenon of Malaysian IPOs, for the period from January 2001 to December 2008. The average initial return for the Malaysian private placement IPOs (a proxy for informed investors) is significantly lower than that of the non-private placement IPOs (a proxy for uninformed investors), which gives support to the winner's curse hypothesis, where uninformed investors demand a higher initial return in the absence of informed investors. Using listing board as proxy for size of companies, we find that the smaller the company, the higher the average initial return, thus giving support to size effect, where investors usually demand higher initial return for smaller companies due to their higher perceived risk. The study also finds that the presence of a large number of informed investors as compared to uninformed investors in an IPO exercise will result in an increase in demand for that particular stock in the secondary market, which gives support to the bandwagon effect.
    Matched MeSH terms: Costs and Cost Analysis
  20. Ruhaini Muda, Abdul Ghafar Ismail, Shahida Shahimi, Saiful Hafizah Jamaan
    MyJurnal
    The adoption of Profit-Loss Sharing arrangement in Islamic banking models can create value for their shareholders. Previous studies discuss Profit-Loss Sharing arrangement in the context of financial intermediation theory, but fail to link the adoption of Profit-Loss Sharing arrangement with value creation and to produce empirical evidence. The aim of this study is to address optimal conditions of the Profit-Loss Sharing contracts in Islamic banking models to minimize the problems of asymmetric information and transaction costs. Three propositions are presented to achieve the optimal conditions of Profit-Loss Sharing contracts in Islamic banking models that can create positive values, given that: First, for mudharaba contract, Islamic banks as rabbul maal give incentives of (0* (RP') to entrepreneurs if the positive value of the Islamic bank's expected net profit is obtained. Next, if an Islamic bank, as mudharib is appointed as wakeel, the depositors of mudharaba investment account are imposed 6*(m) for cost of processing information. Third, for musyaraka contract, the Islamic bank is proposed to incur monitoring cost of c* (y). In addition, this study also produces empirical evidence to determine to what extent the adoption of Profit-Loss Sharing arrangement in Islamic banks creates value for their shareholders. This study utilizes the Malaysian Islamic banks panel data from 2005-2009 and employs Economic Value Added (EVA) as a technique of value creation measurement of Islamic banks. The empirical findings reveal that there is no indication that the adoption of Profit-Loss Sharing arrangement on the deposits structure (MDIA) significantly creates positive value to Islamic banks. This result is consistent for both measurement of value creation against shorter and longer terms opportunity costs of capital employed. This suggests that Islamic banks utilize a lower cost of capital, as Non-mudharaba deposits accounts constitute a large amount of current and saving accounts. On the other hand, for asset structure, this study finds that funds allocated in Financing (FPLS) based on Profit-Loss Sharing arrangement results in a reduction in the value of Islamic banks. However, funds allocated in Securities Investment (FIM) using Profit-Loss Sharing arrangement are significant and create positive value. Collectively, the findings reveal that theoretically, Profit-Loss Sharing arrangement can create value for the shareholders of Islamic banks, and it is evident that Islamic banks need to extensively utilize Profit-Loss Sharing arrangement in Islamic banking operation.
    Matched MeSH terms: Costs and Cost Analysis
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