Displaying publications 1 - 20 of 204 in total

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  1. Ribas A, Wells K, Morand S, Chaisiri K, Agatsuma T, Lakim MB, et al.
    Parasitol Int, 2020 Aug;77:102128.
    PMID: 32330535 DOI: 10.1016/j.parint.2020.102128
    The whipworm Trichuris muris is known to be associated with various rodent species in the northern hemisphere, but the species identity of whipworm infecting rodents in the Oriental region remains largely unknown. We collected Trichuris of Muridae rodents in mainland and insular Southeast Asia between 2008 and 2015 and used molecular and morphological approaches to identify the systematic position of new specimens. We discovered two new species that were clearly distinct from T. muris, both in terms of molecular phylogenetic clustering and morphological features, with one species found in Thailand and another one in Borneo. We named the new species from Thailand as Trichuris cossoni and the species from Borneo as Trichuris arrizabalagai. Molecular phylogeny using internal transcribed spacer region (ITS1-5.8S-ITS2) showed a divergence between T. arrizabalagai n. sp., T. cossoni n. sp. and T. muris. Our findings of phylogeographically distinct Trichuris species despite some globally distributed host species requires further research into the distribution of different species, previously assumed to belong to T. muris, which has particular relevance for using these species as laboratory model organisms.
    Matched MeSH terms: Laboratories
  2. Yap HJ, Taha Z, Dawal SZ, Chang SW
    PLoS One, 2014;9(10):e109692.
    PMID: 25360663 DOI: 10.1371/journal.pone.0109692
    Traditional robotic work cell design and programming are considered inefficient and outdated in current industrial and market demands. In this research, virtual reality (VR) technology is used to improve human-robot interface, whereby complicated commands or programming knowledge is not required. The proposed solution, known as VR-based Programming of a Robotic Work Cell (VR-Rocell), consists of two sub-programmes, which are VR-Robotic Work Cell Layout (VR-RoWL) and VR-based Robot Teaching System (VR-RoT). VR-RoWL is developed to assign the layout design for an industrial robotic work cell, whereby VR-RoT is developed to overcome safety issues and lack of trained personnel in robot programming. Simple and user-friendly interfaces are designed for inexperienced users to generate robot commands without damaging the robot or interrupting the production line. The user is able to attempt numerous times to attain an optimum solution. A case study is conducted in the Robotics Laboratory to assemble an electronics casing and it is found that the output models are compatible with commercial software without loss of information. Furthermore, the generated KUKA commands are workable when loaded into a commercial simulator. The operation of the actual robotic work cell shows that the errors may be due to the dynamics of the KUKA robot rather than the accuracy of the generated programme. Therefore, it is concluded that the virtual reality based solution approach can be implemented in an industrial robotic work cell.
    Matched MeSH terms: Laboratories
  3. Burud I, Ikram MA, Tata MD, Jaafar J
    Pan Afr Med J, 2020;36:16.
    PMID: 32774593 DOI: 10.11604/pamj.2020.36.16.20697
    Bone and joint tuberculosis is a serious medical problem; tuberculosis of sternoclavicular joint is rare. We present a case of a healthy 37-year old man with sternoclavicular joint tuberculosis. The subject presented with a three weeks history of left sternoclavicular joint painless swelling without fever or weight loss. He had no previous history of pulmonary tuberculosis. Laboratory testing revealed erythrocyte sedimentation rate of 70 mm/hour, C-reactive protein of 30 mg/liter and a normal leucocyte count. Biopsy of the lesion showed caseous necrosis and pus culture revealed Mycobacterium tuberculosis. He was treated with joint debridement and anti-tuberculous medications. Tuberculosis resolved completely but post-infection patients had residual joint arthritis. Tuberculosis may infect unusual joints such as the sternoclavicular joint.
    Matched MeSH terms: Laboratories
  4. Mad' Atari MFB, Folta KM
    BMC Res Notes, 2019 Mar 15;12(1):144.
    PMID: 30876440 DOI: 10.1186/s13104-019-4117-3
    OBJECTIVE: The treatment of plant tissue with Agrobacterium tumefaciens is often a critical first step to both stable and transient plant transformation. In both applications bacterial suspensions are oftentimes physically introduced into plant tissues using hand-driven pressure from a needleless syringe. While effective, this approach has several drawbacks that limit reproducibility. Pressure must be provided with the syringe perfectly perpendicular to the tissue surface. The researcher must also attempt to provide even and consistent pressure, both within and between experimental replicates. These factors mean that the procedures do not always translate well between research groups or biological replicates.

    RESULTS: We have devised a method to introduce Agrobacterium suspensions into plant leaves with greater reproducibility. Using a decommissioned dissecting microscope as an armature, a syringe body with the bacterial suspension is mounted to the nosepiece. Gentle, even pressure is applied by rotating the focus knob. The treatment force is measured using a basic kitchen scale. The development of the Standardized Pressure Agrobacterium Infiltration Device (SPAID) provides a means to deliver consistent amounts of bacterial suspensions into plant tissues with the goal of increasing reproducibility between replicates and laboratories.

    Matched MeSH terms: Laboratories
  5. Anuar Zaini MZ, the Pilot Immigrant Health ST
    JUMMEC, 1998;3:61-62.
    A total of 245 foreign workers was screened for various microbial and parasitic infections, as part of the pilot study on the health problems of foreign workers. The sample comprising of Indonesian and Bangladeshi workers, was selected on a non-probability basis from two sources, i.e. University Hospital and a private sector. This investigation revealed substantive number of workers with positive cases to some of the microbial and parasitic infections. KEYWORDS: Pilot study, infective agents, foreign workers
    Matched MeSH terms: Laboratories
  6. Little CJH
    Matched MeSH terms: Laboratories
  7. Lam SK
    Malays J Pathol, 1982 Aug;5:19-22.
    PMID: 7187455
    Matched MeSH terms: Laboratories*
  8. Ajura AJ, Sumairi I, Lau SH
    Malays J Pathol, 2007 Dec;29(2):101-5.
    PMID: 19108402 MyJurnal
    Immunohistochemistry has become part of normal routine diagnostic work in the Stomatology Unit, Institute for Medical Research, Kuala Lumpur. Of 9523 cases received from the year 2000 to 2005, 197 cases (2.1%) required immunohistochemical staining. These cases ranged from benign to malignant lesions. They include lymphomas (n=41), epithelial tumours (n=29), neural lesions (n=21), fibroblastic/myofibroblastic tumours (n=16), small round cell tumour (n=11), vascular tumours (n=4), smooth muscle tumours (n=4), myxomatous tumours (n=4) and skeletal muscle tumours (n=1). In most of the cases (69.5%), immunohistochemical staining was mandatory to reach a definite diagnosis, while 60 cases (30.5%) required immunohistochemistry in confirming the diagnosis. In 32 cases (16.2%), definitive diagnosis could not be made due to the small size of the specimens received or the results of immunohistochemistry were inconclusive. Standardization of techniques, competent medical laboratory technologists and sufficient budget allocation are important in producing a high quality immunohistochemistry service.
    Matched MeSH terms: Laboratories/economics; Laboratories/standards*
  9. Wahab AA, Jauhary EJ, Ding CH
    Malays J Pathol, 2023 Aug;45(2):157-173.
    PMID: 37658526
    Anti-nuclear antibody test (ANA) is the test commonly requested for the working diagnosis of systemic autoimmune rheumatic diseases (SARDs) particularly in ANA-associated rheumatic diseases (AARDs) such as SLE, systemic sclerosis, Sjogren syndrome, mixed connective tissue diseases, and dermatomyositis. Dense fine speckled (DFS) pattern is an ANA fluorescence pattern that is commonly encountered in laboratories. This pattern is largely detected among the healthy population and in non-SARDs patients. Although this pattern is still can be observed among SARDs patients, the low prevalence of monospecific or isolated anti-DFS70 antibodies makes it useful for ruling out AARDs diagnosis. Thus, the inclusion of anti-DFS70 antibodies is perhaps logical for the exclusion of SARDs/AARDs. This review provides evidence of the prevalence of anti-DFS70 antibodies in different populations including healthy individuals, patients with SARDs and non- SARDs. The algorithm that includes the detection of anti-DFS70 antibodies during ANA screening is also suggested.
    Matched MeSH terms: Laboratories
  10. Lim Swee Eng, Bin Mohamed Hussain AH
    Med J Malaysia, 1973 Dec;28(2):103-8.
    PMID: 4276266
    Matched MeSH terms: Laboratories*
  11. Lim VK
    Malays J Pathol, 1982 Aug;5:15-8.
    PMID: 7187454
    Matched MeSH terms: Laboratories*
  12. Kingsbury AN
    Matched MeSH terms: Laboratories
  13. Ch'ng ES, Othman NH
    Malays J Pathol, 2021 Apr;43(1):19-23.
    PMID: 33903301
    International Academy of Pathology, Malaysian Division has initiated and run the external quality assurance program for general diagnostic histopathology since the year 2017. This article introduces the educational philosophy of this external quality assurance program and the technicalities in running such a national program. Challenges in ensuring the successful running of this program to gain wide acceptance by histopathology laboratories in Malaysia as well as experience in overcoming these challenges are detailed. This article charts the future direction of this external quality assurance program.
    Matched MeSH terms: Laboratories
  14. Yap SF
    Malays J Pathol, 1982 Aug;5:11-3.
    PMID: 7187453
    Matched MeSH terms: Laboratories*
  15. Ch'ng SL
    Malays J Pathol, 1983 Aug;6:21-5.
    PMID: 6599865
    Matched MeSH terms: Laboratories/organization & administration*
  16. Looi LM
    Malays J Pathol, 1983 Aug;6:15-9.
    PMID: 6599864
    Matched MeSH terms: Laboratories/organization & administration*
  17. Jestin Jelani, Nur Amirah Adnan, Hapsa Husen, Mohd Nazrin Mohd Daud, Suriyadi Sojipto
    MyJurnal
    This study is a continuation of previous research work conducted by the author on the stability of man-made slope constructed in UPNM campus. This paper presents the effects of ground water level (GWL) fluctuation on slope stability by using numerical simulation program, SlopeW. Ground water rises were simulated from 5m below the ground until 10m above the ground. Soil samples were taken from the site and tested in laboratory and then were incorporated into the program. It was found that the stability of the slope decreased with an increase of GWL. The critical slip surface formed by each case study is categorised as toe failure with circular and non-circular shapes.
    Matched MeSH terms: Laboratories
  18. Emi Norzehan Mohamad Mahbob, Nurul Huda Musa, Zaidatul Shakila Mohamad Ashari, Fathiah Abdullah, Siti Hajar Noor Alshurdin
    Jurnal Inovasi Malaysia, 2019;2(2):41-54.
    MyJurnal
    Piper betle (sirih) is a medicinal plant that has been reported for various pharmacological activities such as antifungal, antibacterial, antioxidant, anticarcinogenic and, anti-inflammatory. The researchwas carried out to study the antifungal activity of ethanolic extract from P. betle leaves. Matured leaves of P. betle were collected and processed to a fine powder before being extracted using ethanol. The first part of the research involved evaluation of antifungal activity of the ethanolic extracts using disk diffusion method at four different concentrations (5, 25, 50, 100 mg/mL) against 3 types of fungi isolated from laboratory surfaces. The sensitivities of the fungal towards the ethanolic extracts were determined by measuring the size of inhibitory zones. Results showed that highest concentration of the extract (100 mg/mL) inhibited fungal growth for all three types of isolated fungi with 0.97, 0.83, and 0.77 cm zone of inhibition for yeast, Aspergillus sp. and Penicillium sp., respectively. Low concentrations (5, 25 and 50 mg/mL) did not inhibit the fungal growth except for Penicillium sp. that showed zone of inhibition, 0.53 cm at concentration of 50 mg/mL. The second part of the research involved evaluation of fungal count utilizing effective dose of betel leaves ethanolic extract obtained from the first part of this research which is 100 mg/mL. This study found that no fungal growth on the microscope wire that has been sprayed with betel leaves ethanolic extract on Day 1, Day 4 and Day 7. For wire that been sprayed with ethanol 70%, the average of fungal count was same on Day 1 and Day 4 (5.6 x 102 cfu/mL) but increased to 9.2 x 102 cfu/mL on Day 7. In conclusion, betel leaves extract exhibit fungicidal properties that support their use as antifungal agents from natural products which are safe, easily available with no adverse effects.
    Matched MeSH terms: Laboratories
  19. Pillay B
    Malays J Pathol, 1982 Aug;5:7-9.
    PMID: 7187461
    Matched MeSH terms: Laboratories*
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