Displaying publications 141 - 160 of 9653 in total

Abstract:
Sort:
  1. Fulltext Semisolid metal processing techniques for nondendritic feedstock production
    Mohammed MN, Omar MZ, Salleh MS, Alhawari KS, Kapranos P
    ScientificWorldJournal, 2013;2013:752175.
    PMID: 24194689 DOI: 10.1155/2013/752175
    Semisolid metal (SSM) processing or thixoforming is widely known as a technology that involves the formation of metal alloys between solidus and liquidus temperatures. For the procedure to operate successfully, the microstructure of the starting material must consist of solid near-globular grains surrounded by a liquid matrix and a wide solidus-to-liquidus transition area. Currently, this process is industrially successful, generating a variety of products with high quality parts in various industrial sectors. Throughout the years since its inception, a number of technologies to produce the appropriate globular microstructure have been developed and applied worldwide. The main aim of this paper is to classify the presently available SSM technologies and present a comprehensive review of the potential mechanisms that lead to microstructural alterations during the preparation of feedstock materials for SSM processing.
    Matched MeSH terms: Heating/methods*; Metallurgy/methods*
  2. Techniques of extracorporeal cytokine removal: a systematic review of human studies
    Atan R, Crosbie DC, Bellomo R
    Ren Fail, 2013 Sep;35(8):1061-70.
    PMID: 23866032 DOI: 10.3109/0886022X.2013.815089
    Hypercytokinemia is believed to be harmful and reducing cytokine levels is considered beneficial. Extracorporeal blood purification (EBP) techniques have been studied for the purpose of cytokine reduction. We aimed to study the efficacy of various EBP techniques for cytokine removal as defined by technical measures.
    Matched MeSH terms: Blood Component Removal/methods*; Hemofiltration/methods*
  3. Teledentistry in practice: literature review
    Khan SA, Omar H
    Telemed J E Health, 2013 Jul;19(7):565-7.
    PMID: 23672799 DOI: 10.1089/tmj.2012.0200
    Teledentistry can be defined as the remote provision of dental care, advice, or treatment through the medium of information technology, rather than through direct personal contact with any patient(s) involved. Within dental practice, teledentistry is used extensively in disciplines like preventive dentistry, orthodontics, endodontics, oral surgery, periodontal conditions, detection of early dental caries, patient education, oral medicine, and diagnosis. Some of the key modes and methods used in teledentistry are electronic health records, electronic referral systems, digitizing images, teleconsultations, and telediagnosis. All the applications used in teledentistry aim to bring about efficiency, provide access to underserved population, improve quality of care, and reduce oral disease burden.
    Matched MeSH terms: Dental Care/methods*; Dentistry/methods*
  4. A preliminary study of using active vision guided robotic arm for bone drilling in a developing country
    Abdullah MZ, Awang MS, Tan YC, Abdullah JM
    J Neurol Surg A Cent Eur Neurosurg, 2014 Mar;75(2):155-7.
    PMID: 23636911 DOI: 10.1055/s-0032-1330954
    The study assesses the capability and accuracy of a robotic arm to perform burr holes.
    Matched MeSH terms: Robotics/methods*; Trephining/methods*
  5. Treatment of Terasil Red R and Cibacron Red R wastewater using extracted aluminum from red earth: factorial design
    Alkarkhi AF, Lim HK, Yusup Y, Teng TT, Abu Bakar MA, Cheah KS
    J Environ Manage, 2013 Jun 15;122:121-9.
    PMID: 23570974 DOI: 10.1016/j.jenvman.2013.03.010
    The ability of aluminum coagulant extracted from red earth to treat Terasil Red R (disperse) and Cibacron Red R (reactive) synthetic dye wastewater was studied. The effects of extractant concentration, soil-to-volume of extractant ratio, and the types of extracting agents (NaOH vs. KCl) on the concentration of aluminum extracted were also investigated. In addition, the efficiency of extracted aluminum was compared with aluminum sulfate, in terms of its capability to reduce the chemical oxygen demand (COD) and to remove synthetic color. Factorial design was applied to determine the effect of selected factors on the amount of aluminum extracted from red earth (i.e., pH, dose of coagulant, type of coagulant on COD reduction, and color removal). It was found that only selected factors exhibited a significant effect on the amount of aluminum extracted from red earth. It was also determined that all factors and their interactions exhibited a significant effect on COD reduction and color removal when applying the extracted aluminum in a standard coagulation process. The results were also compared to aluminum sulfate. Furthermore, NaOH was found to be a better extractant of aluminum in red earth than KCl. Therefore, the best extracting conditions for both extractants were as follows: 2 M NaOH and in a 1:5 (soil/volume of extractant) ratio; 1 M KCl and 1:5 ratio. In treating synthetic dye wastewater, the extracted coagulant showed comparable treatment efficiency to the commercial coagulant. The extracted coagulant was able to reduce the COD of the dispersed dye by 85% and to remove 99% of the color of the dispersed dye, whereas the commercial coagulant reduced 90% of the COD and removed 99% of the color of the dispersed dye. Additionally, the extracted coagulant was able to reduce the COD of the reactive dye by 73% and to remove 99% of the color of the reactive dye. However, the commercial coagulant managed to reduce the COD of the reactive dye by 94% and to remove 96% of the color for the reactive dye.
    Matched MeSH terms: Waste Disposal, Fluid/methods*; Water Purification/methods*
  6. A more elaborative way to check codon quality: an open source program
    Shardiwal RK, Sohrab SS
    Int J Bioinform Res Appl, 2010;6(3):223-9.
    PMID: 20615831
    Relative Synonymous Codon Usage (RSCU) and Relative Adaptiveness of a Codon (RAC) table bias importance in gene expression are well documented in the literature. However, to improve the gene expression we need to figure out which codons are optimal for the expression in order to synthesise an appropriate DNA sequence. An alternative to the manual approach, which is obviously a tedious task, is to set up software on your computer to perform this. Though such kinds of programs are available on the internet, none of them are open-source libraries. Here, one can use our Perl program to do his or her task more easily and efficiently. It is free for everyone.
    Matched MeSH terms: Sequence Analysis, DNA/methods; Genomics/methods*
  7. Fulltext Improvement to the scanning electron microscope image colorization by adaptive tuning
    Sim KS, Ting HY, Lai MA, Tso CP
    J Microsc, 2009 Jun;234(3):243-50.
    PMID: 19493101 DOI: 10.1111/j.1365-2818.2009.03167.x
    An improvement to the previously proposed Canny optimization technique for scanning electron microscope image colorization is reported. The additional process is adaptive tuning, where colour tuning is performed adaptively, based on comparing the original luminance values with calculated luminance values. The complete adaptive Canny optimization technique gives significantly better mechanical contrast on scanning electron microscope grey-scale images than do existing methods.
    Matched MeSH terms: Image Processing, Computer-Assisted/methods*; Microscopy, Electron, Scanning/methods*
  8. Fulltext Lagrange time delay estimation for scanning electron microscope image magnification
    Sim KS, Thong LW, Ting HY, Tso CP
    J Microsc, 2010 Feb;237(2):111-8.
    PMID: 20096041 DOI: 10.1111/j.1365-2818.2009.03325.x
    Interpolation techniques that are used for image magnification to obtain more useful details of the surface such as morphology and mechanical contrast usually rely on the signal information distributed around edges and areas of sharp changes and these signal information can also be used to predict missing details from the sample image. However, many of these interpolation methods tend to smooth or blur out image details around the edges. In the present study, a Lagrange time delay estimation interpolator method is proposed and this method only requires a small filter order and has no noticeable estimation bias. Comparing results with the original scanning electron microscope magnification and results of various other interpolation methods, the Lagrange time delay estimation interpolator is found to be more efficient, more robust and easier to execute.
    Matched MeSH terms: Image Processing, Computer-Assisted/methods*; Microscopy, Electron, Scanning/methods*
  9. Challenges of soil erosion and sludge management for sustainable development in Indonesia
    Fulazzaky MA, Abdul Gany AH
    J Environ Manage, 2009 Jun;90(8):2387-92.
    PMID: 19346056 DOI: 10.1016/j.jenvman.2009.02.017
    Most developing countries, particularly Indonesia, will be facing problems of sludge pressure in the next decades due to the increase in practices of legal and illegal logging as well as land and water demands. Consequently, they will also be facing the challenges of soil erosion and sludge management due to increased quantities of sludge coming from several potential sources, such as activated sludge, chemical sludge, fecal sludge and solid wastes as well as erosion and sedimentation. Although the government of Indonesia has enacted laws and policies to speed up the implementation of the programs and activities related to sludge management, the detailed practice concepts in implementing the programs need to be identified. Discussion of role-sharing amongst the related government agencies, private institutions and other stakeholders is urgent for clarifying the participation of each party in the next years to come. This paper proposes a management approach and level of responsibilities in sludge management. Implementation of zero DeltaQ, zero DeltaS and zero DeltaP policies needs to be adopted by local and central governments. Application of sludge on the agricultural lands and other uses will promote sustainable development.
    Matched MeSH terms: Conservation of Natural Resources/methods*; Environmental Monitoring/methods*
  10. Challenges in sustainable management of construction and demolition waste
    Agamuthu P
    Waste Manag Res, 2008 Dec;26(6):491-2.
    PMID: 19039063 DOI: 10.1177/0734242X08100096
    Matched MeSH terms: Conservation of Natural Resources/methods*; Waste Management/methods*
  11. Fulltext Transoral endoscopic adenoidectomy: initial experience
    Jong YH, Gendeh BS
    Med J Malaysia, 2008 Mar;63(1):81-3.
    PMID: 18935747 MyJurnal
    Adenoidectomy is a common ENT procedure performed in hospitals in Malaysia. Adenoidectomy is indicated in patients with recurrent adenoiditis, nasal obstruction or sleep apnoea secondary to adenoid hypertrophy when conservative management has failed. Over the years, there are advances in the techniques of adenoidectomy, from the conventional transoral to endoscopic transnasal/transoral adenoidectomy. The purpose of this article is to describe the technique and emphasize the advantages of this procedure to that of the conventional technique.
    Matched MeSH terms: Adenoidectomy/methods*; Endoscopy/methods
  12. Enhancement of bioseparation and dewaterability of domestic wastewater sludge by fungal treated dewatered sludge
    Fakhru'l-Razi A, Molla AH
    J Hazard Mater, 2007 Aug 17;147(1-2):350-6.
    PMID: 17321676
    A promising biological, sustainable, non-hazardous, safe and environmental friendly management and disposal technique of domestic wastewater sludge is global expectation. Fungal entrapped biosolids as a result of prior fungal treated raw wastewater sludge was recycled to evaluate its performance as inoculum for bioseparation/bioconversion of supplemented sludge in view of continuous as well as scale up wastewater sludge treatment. Encouraging results were achieved in bioseparation of suspended solids and in dewaterability/filterability of treated domestic wastewater sludge. Fungal entrapped biosolids offered 98% removal of total suspended solids (TSS) in supplemented sludge treatment at 6-day without nutrient (wheat flour, WF) supply. Consequently, 99% removal of turbidity and 87% removal of chemical oxygen demand (COD) were achieved in supernatant of treated sludge. The lowest value (1.75 x 10(12)m/kg) of specific resistance to filtration (SRF) was observed at 6-day after treatment, which was equivalent to the 70% decrease of SRF. The all results except SRF were not influenced further in treatments accompanied with WF supplementation. The present treatments offered significant (P
    Matched MeSH terms: Filtration/methods*; Water Purification/methods*
  13. Computer-assisted objective-structured practical examination: an innovative method of evaluation
    Torke S, Upadhya S, Abraham RR, Ramnarayan K
    Adv Physiol Educ, 2006 Mar;30(1):48-9.
    PMID: 16481610
    Matched MeSH terms: Computer-Assisted Instruction/methods*; Educational Measurement/methods*
  14. Self-directed learning
    Abraham RR, Upadhya S, Ramnarayan K
    Adv Physiol Educ, 2005 Jun;29(2):135-6.
    PMID: 15905163
    Matched MeSH terms: Education, Medical, Undergraduate/methods*; Teaching/methods
  15. Qigong in cancer care: a systematic review and construct analysis of effective Qigong therapy
    Klein PJ, Schneider R, Rhoads CJ
    Support Care Cancer, 2016 07;24(7):3209-22.
    PMID: 27044279 DOI: 10.1007/s00520-016-3201-7
    PURPOSE: This review (a) assesses the strength of evidence addressing Qigong therapy in supportive cancer care and (b) provides insights for definition of effective Qigong therapy in supportive cancer care.

    METHODS: This mixed-methods study includes (a) a systematic review of randomized clinical trials (RCTs) following PRISMA guidelines and (b) a constant-comparative qualitative analysis of effective intervention protocols.

    RESULTS: Eleven published randomized clinical trials were reviewed. A total of 831 individuals were studied. Geographic settings include the USA, Australia, China, Hong Kong, and Malaysia. Qigong therapy was found to have positive effects on the cancer-specific QOL, fatigue, immune function, and cortisol levels of individuals with cancer. Qigong therapy protocols varied supporting a plurality of styles. Qualitative analyses identified common programming constructs. Content constructs included exercise (gentle, integrated, repetitious, flowing, weight-bearing movements), breath regulation, mindfulness and meditation, energy cultivation including self-massage, and emphasis on relaxation. Logistic constructs included delivery by qualified instructors, home practice, and accommodation for impaired activity tolerance.

    CONCLUSIONS: There is global interest and a growing body of research providing evidence of therapeutic effect of Qigong therapy in supportive cancer care. While Qigong therapy protocols vary in style, construct commonalities do exist. Knowledge of the common constructs among effective programs revealed in this research may be used to guide future research intervention protocol and community programming design and development.

    Matched MeSH terms: Tai Ji/methods*; Qigong/methods*
  16. Fulltext A preliminary report on anaesthesia for thoracoscopic oesophagectomy
    Sia AT
    Med J Malaysia, 1997 Dec;52(4):433-7.
    PMID: 10968123
    The anaesthetic experience in three patients undergoing thoracoscopic oesophagectomy is discussed. The indications for surgery and the premorbid states are outlined. The necessity for one-lung ventilation, with its attendant cardiopulmonary effects, the difficulty of patient access and the assessment of blood loss were the main problems encountered. Pulmonary morbidity was high in the post-operative period despite the avoidance of thoracotomy. Two patients developed persistent vocal cord paralysis. In conclusion, the role of thoracoscopic oesophagectomy needs further evaluation.
    Matched MeSH terms: Anesthesia/methods*; Esophagectomy/methods*
  17. Fulltext Building a green Belt and Road: A systematic review and comparative assessment of the Chinese and English-language literature
    Teo HC, Campos-Arceiz A, Li BV, Wu M, Lechner AM
    PLoS One, 2020;15(9):e0239009.
    PMID: 32932516 DOI: 10.1371/journal.pone.0239009
    International attention on the environmental impacts of China's Belt and Road Initiative (BRI) is increasing, but little is known internationally about the large corpus of Chinese BRI environmental research. We present the first systematic review of the Chinese and English-language BRI environmental research, supported with text mining and sentiment analysis. We found that the research is dominated by Chinese authors writing about BRI routes within China in Chinese, even though concerns around BRI are largely about impacts and benefits within host countries, and the volume of publications in English is recently catching up. Different disciplines and methods are well-represented across languages, apart from specific types of Chinese social science papers. The sentiments of academic research are largely neutral and less polarised than media discourse. We recommend that scientists and practitioners should pay more attention to BRI environmental impacts in developing countries and proactively engage local voices.
    Matched MeSH terms: Linguistics/methods*; Information Dissemination/methods*
  18. Quantitative Flow Cytometry-Based Assays for Measuring Constitutive Secretion
    Gordon DE, Shun-Shion AS, Asnawi AW, Peden AA
    Methods Mol Biol, 2021;2233:115-129.
    PMID: 33222131 DOI: 10.1007/978-1-0716-1044-2_8
    Constitutive secretion is predominantly measured by collecting the media from cells and performing plate-based assays. This approach is particularly sensitive to changes in cell number, and a significant amount of effort has to be spent to overcome this. We have developed a panel of quantitative flow cytometry-based assays and reporter cell lines that can be used to measure constitutive secretion. These assays are insensitive to changes in cell number making them very robust and well suited to functional genomic and chemical screens. Here, we outline the key steps involved in generating and using these assays for studying constitutive secretion.
    Matched MeSH terms: Biological Assay/methods*; Flow Cytometry/methods*
  19. Commercial kitchenware glass as a potential thermoluminescent media for retrospective dosimetry
    Wahib NB, Khandaker MU, Aqilah Binti Mohamad Ramli N, Sani SFA, Bradley DA
    Appl Radiat Isot, 2019 Jun;148:218-224.
    PMID: 31003071 DOI: 10.1016/j.apradiso.2019.04.001
    Study has been made of the thermoluminescence (TL) yield of various glass-based commercial kitchenware (Reko-China, Skoja-France, Godis-China, Glass Tum-Malaysia, Lodrat-France). Interest focuses on their potential for retrospective dosimetry. Use was made of a60Co gamma-ray irradiator, delivering doses in the range 2-10 Gy. Results for the various media show all the glassware brands to yield linearity of response against dose, with a lower limit of detection of ∼0.06 and ∼0.08 Gy for loose and compact powdered samples. Among all of the brands under study, the Lodrat glassware provides the greatest sensitivity, at 6.0 E+02 nC g-1 Gy-1 and 1.5E+03 nC g-1 Gy-1 for compact- and loose-powdered forms respectively. This is sufficiently sensitive to allow its use as a TL material for accident dosimetry (2 Gy being the threshold dose for the onset of a number of deterministic biological effects, including skin erythema and sterility). Energy Dispersive X-ray (EDX) analyses have been conducted, showing the presence of a number of impurities (including C, O, Na, Mg, Al, Si, Ca and Br). Fading of the irradiated glasses show the amount of better than 3% and 5% of the stored energy for both loose and compact powdered samples within 9 days post irradiation. As such, commercial kitchenware glass has the potential to act as relatively good TL material for gamma radiation dosimetry at accident levels. This is the first endeavour reporting the TL properties of low cost commercial kitchenware glasses for gamma-ray doses in the few Gy range, literature existing for doses from 8 Gy to 200 Gy.
    Matched MeSH terms: Radiometry/methods*; Thermoluminescent Dosimetry/methods*
  20. NMR metabolomics for evaluating passage number and harvesting effects on mammalian cell metabolome
    Abdul-Hamid NA, Abas F, Maulidiani M, Ismail IS, Tham CL, Swarup S, et al.
    Anal Biochem, 2019 07 01;576:20-32.
    PMID: 30970239 DOI: 10.1016/j.ab.2019.04.001
    The variation in the extracellular metabolites of RAW 264.7 cells obtained from different passage numbers (passage 9, 12 and 14) was examined. The impact of different harvesting protocols (trypsinization and scraping) on recovery of intracellular metabolites was then assessed. The similarity and variation in the cell metabolome was investigated using 1H NMR metabolic profiling modeled using multivariate data analysis. The characterization and quantification of metabolites was performed to determine the passage-related and harvesting-dependent effects on impacted metabolic networks. The trypsinized RAW cells from lower passages gave higher intensities of most identified metabolites, including asparagine, serine and tryptophan. Principal component analysis revealed variation between cells from different passages and harvesting methods, as indicated by the formation of clusters in score plot. Analysis of S-plots revealed metabolites that acted as biomarkers in discriminating cells from different passages including acetate, serine, lactate and choline. Meanwhile lactate, glutamine and pyruvate served as biomarkers for differentiating trypsinized and scraped cells. In passage-dependent effects, glycolysis and TCA cycle were influential, whereas glycerophospholipid metabolism was affected by the harvesting method. Overall, it is proposed that typsinized RAW cells from lower passage numbers are more appropriate when conducting experiments related to NMR metabolomics.
    Matched MeSH terms: Magnetic Resonance Spectroscopy/methods*; Metabolomics/methods*
Related Terms
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links