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Fulltext Norm-dist Monte-Carlo integrative method for the improvement of fuzzy analytic hierarchy process

Wicaksono FD, Arshad YB, Sihombing H

Heliyon, 2020 Apr;6(4):e03607.
PMID: 32346625 DOI: 10.1016/j.heliyon.2020.e03607

This paper presents the novel approach of the Norm-dist Monte-Carlo fuzzy analytic hierarchy process (NMCFAHP) to incorporate probabilistic and epistemic uncertainty due to human's judgment vagueness in multi-criteria decision analysis. Normal distribution is applied as the most appropriate distribution model to approximate the probability distribution function of the criteria and alternatives within Monte-Carlo simulation. To test the applicability of the proposed NMCFAHP, the case study of non-destructive test (NDT) technology selection is performed in the Petroleum Company in Borneo, Indonesia. When compared with the conventional triangular fuzzy-AHP, the proposed NMCFAHP method reduces the standard error of mean values by 90.4-99.8% at the final evaluation scores. This means that the proposed NMCFAHP significantly involves fewer errors when dealing with fuzzy uncertainty and stochastic randomness. The proposed NMCFAHP delivers reliable performance to overcome probabilistic uncertainty and epistemic vagueness in the group decision making process.

Matched MeSH terms: Technology
Box-Behnken design optimisation of a green novel nanobio-based reagent for rapid visualisation of latent fingerprints on wet, non-porous substrates

Azman AR, Mahat NA, Wahab RA, Ahmad WA, Puspanadan JK, Huri MAM, et al.

Biotechnol Lett, 2021 Apr;43(4):881-898.
PMID: 33389272 DOI: 10.1007/s10529-020-03052-3

OBJECTIVE: Optimisation of the green novel nanobio-based reagent (NBR) for rapid visualisation of groomed fingerprints on wet non-porous substrates using response surface methodology and assessment of its stability and sensitivity were attempted for forensic applications.
RESULTS: Scanning electron microscopy images demonstrated successful attachments of NBR onto the constituents of fingerprints on the substrates. The highest average quality of visualised fingerprints was attained at the optimum condition (100 mg of CRL; 75 mg of acid-functionalised multi-walled carbon nanotubes; 5 h of immobilisation). The NBR produced comparable average quality of fingerprints with the commercially available small particle reagent, even after 4 weeks of storage (without any preservatives) in both chilled and sultry conditions. The NBR was sensitive enough to visualise the increasingly weaker fingerprints, particularly on glass slides.
CONCLUSION: The optimised novel NBR could be the relatively greener option for visualising latent fingerprints on wet, non-porous substrates for forensic applications.

Matched MeSH terms: Green Chemistry Technology
Fulltext Ergonomics in industrially developing countries: a literature review

Huck-Soo L, Richardson S

J Hum Ergol (Tokyo), 2012 Dec;41(1-2):1-16.
PMID: 25665194 DOI: 10.11183/jhe.41.1

The two final decades of the 20th century saw a significant increase in ergonomics activity (and resulting publications) in industrially developing countries (IDCs). However, a few ergonomics papers from Singapore, for example, were published in 1969 and 1970. This paper reviews developments in ergonomics in industrially developing countries from 1969 relying heavily on published papers although their quality varies considerably. Some criticism of these papers is offered. Most were concerned with the use of work tools, workstation operations, material handling and working environments especially in tropical climates. The similar problems encountered in a variety of countries are discussed, and the importance of low-cost solutions stressed. This study presents an overview of er gonomics research in IDCs. It concentrates on ASEAN countries whilst recognising the valuable work done in other areas.

Matched MeSH terms: Technology Transfer
Production of oil palm (Elaeis guineensis) fronds lignin-derived non-toxic aldehyde for eco-friendly wood adhesive

Hazwan Hussin M, Samad NA, Latif NHA, Rozuli NA, Yusoff SB, Gambier F, et al.

Int J Biol Macromol, 2018 Jul 01;113:1266-1272.
PMID: 29548919 DOI: 10.1016/j.ijbiomac.2018.03.048

Lignocellulosic materials can significantly contribute to the development of eco-friendly wood adhesives. In this work, glyoxal-phenolic resins for plywood were prepared using organosolv lignin, which was isolated from black liquor recovered from organosolv pulping of oil palm fronds (OPF) and considered to be an alternative to phenol. Glyoxal, which is a dialdehyde obtained from several natural resources, was used as substitute for formaldehyde. The structure of organosolv lignin and the resins were characterized by FTIR and NMR, and for thermal stability by TGA and DSC. The resins were further studied for their viscosity, pH, solids content and gel times. The resins performance as wood adhesive was further established from mechanical test in terms of tensile strength and modulus of elasticity (MOE) to obtain the optimum ratios of organosolv lignin, which replaces phenol in organosolv lignin phenol glyoxal (OLPG) resins. The adhesive composition having 50% (w/w) of phenol substituted by organosolv lignin, termed as 50% OLPG showed highest adhesive strength compared to phenol formaldehyde (PF) commercial adhesive.

Matched MeSH terms: Green Chemistry Technology
Environmental hazards posed by mine dust, and monitoring method of mine dust pollution using remote sensing technologies: An overview

Yu H, Zahidi I

Sci Total Environ, 2023 Mar 15;864:161135.
PMID: 36566867 DOI: 10.1016/j.scitotenv.2022.161135

The over-exploitation of mineral resources has led to increasingly serious dust pollution in mines, resulting in a series of negative impacts on the environment, mine workers (occupational health) and nearby residents (public health). For the environment, mine dust pollution is considered a major threat on surface vegetation, landscapes, weather conditions and air quality, leading to serious environmental damage such as vegetation reduction and air pollution; for occupational health, mine dust from the mining process is also regarded as a major threat to mine workers' health, leading to occupational diseases such as pneumoconiosis and silicosis; for public health, the pollutants contained in mine dust may pollute surrounding rivers, farmlands and crops, which poses a serious risk to the domestic water and food security of nearby residents who are also susceptible to respiratory diseases from exposure to mine dust. Therefore, the second section of this paper combines literature research, statistical studies, and meta analysis to introduce the public mainly to the severity of mine dust pollution and its hazards to the environment, mine workers (occupational health), and residents (public health), as well as to present an outlook on the management of mine dust pollution. At the same time, in order to propose a method for monitoring mine dust pollution on a regional scale, based on the Dense Dark Vegetation (DDV) algorithm, the third section of this paper analysed the aerosol optical depth (AOD) change in Dexing City of China using the data of 2010, 2014, 2018 and 2021 from the NASA MCD19A2 Dataset to explore the mine dust pollution situation and the progress of pollution treatment in Dexing City from 2010 to 2021. As a discussion article, this paper aims to review the environmental and health risks caused by mine dust pollution, to remind the public to take mine dust pollution seriously, and to propose the use of remote sensing technologies to monitor mine dust pollution, providing suggestions for local governments as well as mines on mine dust monitoring measures.

Matched MeSH terms: Remote Sensing Technology
Fulltext Fibreoptic bronchoscopy in the diagnosis of pulmonary tuberculosis--a Malaysian experience

Jalleh RD, Kuppusamy I, Parameswary V, Yeow CS

Singapore Med J, 1993 Feb;34(1):55-7.
PMID: 8266131

We report our experience on the use of fibreoptic bronchoscopy in the diagnosis of pulmonary tuberculosis. The case records of 1,274 patients who underwent fibreoptic bronchoscopy at the National Tuberculosis Centre, Kuala Lumpur, Malaysia during a three-year period were reviewed. In 120 of them the final diagnosis was tuberculosis. Bronchoscopy confirmed the diagnosis in 37 patients (30.8%). This was achieved by bronchial aspiration for culture in 26 patients (70.3%) and bronchial biopsy for histopathology in 11 patients (29.7%). It was the exclusive method of confirmation in 16 patients (13.3%). Sputum culture was positive in 62 patients (51.7%) including 41 patients (34.2%) in whom bronchoscopy was unhelpful. Six patients had diagnosis confirmed by other means while in 36 others (30%) it was based on clinical features and supportive basic investigations. There were no complications noted. We conclude that while sputum examination remains the mainstay for diagnosing pulmonary tuberculosis, fibreoptic bronchoscopy serves as a safe and useful adjunct.

Matched MeSH terms: Fiber Optic Technology
A possible resolution of Malaysian sunset industry by green fertilizer technology: factors affecting the adoption among paddy farmers

Adnan N, Nordin SM, Rasli AM

Environ Sci Pollut Res Int, 2019 Sep;26(26):27198-27224.
PMID: 31321721 DOI: 10.1007/s11356-019-05650-9

One of the innovations introduced toward tackling the heightening of environmental impact is green technology. In the agricultural industry, the implementation of green fertilizer technology (GFT) for the modern development of environmentally friendly technology is a necessity. Within the Malaysian agriculture sector, the GFT application is needed to increase production levels among all crops. One of the essential commodities of all crops has always been paddy, given its status as the staple food among the country's population. Paddy production with the adoption of GFT potentially opens the path toward sustainable development in the industry as well as it also provides the food safety aspect. Moreover, this helps farmers to improve their productivity on paddy production in Malaysia. This paper attempts to evaluate the contributing socio-psychological factors, innovation attributes of environmental factors, and channels of communication to decision-making among farmers in Malaysia on GFT. Furthermore, this research also aims to assess the moderating role of cost between the farmer's behavioral intention and the adoption of GFT. The sampling process followed the stratified sampling technique-overall, 600 survey questionnaires were dispersed and 437 effective responses were received. The structural analysis results obtained have revealed significant positive effect for perceived awareness, attitude, group norm, perceived behavioral control, environmental concern, agro-environmental regulations, relative advantage, compatibility, trialability, and observability, and on farmer's behavioral intention, a significant effect for paddy farmer's behavioral intention in order to adopt of GFT. Further, the interaction effects of cost on the link between farmer's behavioral intention and adoption of GFT are statistically significant. Though, the finding could not back an outcome for the subjective norm, complexity, and mass media on farmer's behavioral intention. Finally, critical outcomes obtained in this research contribute to deepening the thoughtfulness of paddy farmers' adoption of GFT. This study concludes with policy recommendations and future directions of the research.

Matched MeSH terms: Technology
Green is clean: the role of ICT in resource management

Batool R, Sharif A, Islam T, Zaman K, Shoukry AM, Sharkawy MA, et al.

Environ Sci Pollut Res Int, 2019 Aug;26(24):25341-25358.
PMID: 31256396 DOI: 10.1007/s11356-019-05748-0

It is well documented that carbon emissions can be reduced by replacing conventional energy resources with renewable energy resources; thereby, the role of green technology is essential as it protect natural environment. Given that, the United Nations' agenda of "green is clean" may be achievable by adoption of green technologies. The objective of the study is to examine the link between information and communication technology (ICT), economic growth, energy consumption, and carbon dioxide (CO2) emissions in the context of South Korean economy, by using a novel Morlet wavelet approach. The study applies continuous wavelet power spectrum, the wavelet coherency, and the partial and the multiple wavelet coherency to the year during 1973-2016. The outcomes reveal that the connections among the stated variables progress over frequency and time domain. From the frequency domain point of view, the current study discovers noteworthy wavelet coherence and robust lead and lag linkages. From the time-domain sight, the results display robust but not consistent associations among the considered variables. From an economic point sight, the wavelet method displays that ICT helps to reduce environmental degradation in a medium and long run in the South Korean economy. This emphasizes the significance of having organized strategies by the policymakers to cope up with 2 to 3 years of the occurrence of the huge environmental degradation in South Korea.

Matched MeSH terms: Technology
Patients' Technology Readiness and eHealth Literacy: Implications for Adoption and Deployment of eHealth in the COVID-19 Era and Beyond

Lee WL, Lim ZJ, Tang LY, Yahya NA, Varathan KD, Ludin SM

Comput Inform Nurs, 2021 Nov 02;40(4):244-250.
PMID: 34740221 DOI: 10.1097/CIN.0000000000000854

The COVID-19 pandemic has rerouted the healthcare ecosystem by accelerating digital health, and rapid adoption of eHealth is partly influenced by eHealth literacy (eHL). This study aims to examine patients' eHL in relation to their "technology readiness"-an innate attitude that is underexplored in clinical research. A total of 276 adult inpatients with hypertension, diabetes mellitus, and coronary heart disease were surveyed cross-sectionally in 2019 using self-reported questionnaires: eHealth Literacy Scale and Technology Readiness Index (2.0). The study found moderate eHL (mean, 27.38) and moderate technology readiness (mean, 3.03) among patients. The hierarchical regression model shows that lower eHL scores were associated with patients of minor ethnicity (Malaysian Chinese), with an unemployed status, and having >1 cardiovascular risk (β = -0.136 to -0.215, R2 = 0.283, Ps < .005). Technology readiness is a strong determinant of eHL (ΔR2 = 0.295, P < .001) with its subdomains (optimism, innovativeness, and discomfort) significantly influencing eHL (|β| = 0.28-0.40, Ps < .001), except for the insecurity subdomain. Deployment of eHealth interventions that incorporate assessment of patients' eHL and technology readiness will enable targeted strategies, especially in resource-limited settings hit hard by the pandemic crisis.

Matched MeSH terms: Technology
Fulltext Bioinformatics in Malaysia: hope, initiative, effort, reality, and challenges

Zeti AM, Shamsir MS, Tajul-Arifin K, Merican AF, Mohamed R, Nathan S, et al.

PLoS Comput Biol, 2009 Aug;5(8):e1000457.
PMID: 19714208 DOI: 10.1371/journal.pcbi.1000457
Matched MeSH terms: Technology
Fulltext Malaysia collaborates with the new york academy of sciences to develop an innovation-based economy

Wahome M, Rubinstein E

Malays J Med Sci, 2011 Jul;18(3):1-3.
PMID: 22135594 MyJurnal

If Malaysia is to become a high-income country by 2020, it will have to transform into a knowledge-based, innovation economy. This goal will be achieved by developing an atmosphere conducive to experimentation and entrepreneurship at home; while reaching out to partners across the globe. One of Malaysia's newest partnerships is with the New York Academy of Sciences. The Academy has expertise in innovation and higher education and a long history of promoting science, education, and science-based solutions through a global network of scientists, industry-leaders, and policy-makers. Malaysia's Prime Minister, Dato' Sri Mohd Najib Tun Abdul Razak, leveraged the Academy's network to convene a science, technology, and innovation advisory council. This council would provide practical guidance to establish Malaysia as an innovation-based economy. Three initial focus areas, namely palm-oil biomass utilisation, establishment of smart communities, and capacity building in science and engineering, were established to meet short-term and long-term targets.

Matched MeSH terms: Technology
Fulltext Clinical Skill: The Ebbing Art of Medicine

Datta A

Malays J Med Sci, 2021 Feb;28(1):105-108.
PMID: 33679226 DOI: 10.21315/mjms2021.28.1.13

Clinical history taking and physical examination are the essence of clinical medicine. However, the glare of modern diagnostic tools and techniques has overshadowed these basic but indispensable steps of diagnosis. Deterioration of clinical skills is a burning issue in this era due to over-reliance on high-end technology. Poor clinical judgment not only leads to mismanagement but also results in over-utilisation of health care resources. Moreover, with lesser time at the bedside, the physician-patient relationship is also getting compromised.

Matched MeSH terms: Technology
Fulltext The Availability of Information on Induced Lactation in Malaysia

Rahim NCA, Sulaiman Z, Ismail TAT

Malays J Med Sci, 2017 Aug;24(4):5-17.
PMID: 28951685 MyJurnal DOI: 10.21315/mjms2017.24.4.2

Induced lactation is a method of stimulating the production of breast milk in women who have not gone through the process of pregnancy. Recent advances in technology have given such women the opportunity to breastfeed adopted children. Previous studies conducted in Western countries have explored the breastfeeding of adopted children, as well as the experiences, successes and challenges of this process. However, research on procedures for breastfeeding adopted children is lacking in Malaysia. The authors have therefore reviewed literature related to induced lactation in Malaysia to fill this gap. Of the 30 related articles identified, 19 described the breastfeeding practices and experiences of adoptive mothers in Malaysia. Out of 19 articles, there were four journal articles, five circulars and regulations, two books, two post-graduate theses, four blogs posts and forum discussions, and two online newspaper articles. Medical information relating to induced lactation procedures was also reviewed, showing that there was a lack of scientific studies focusing on induced lactation practices among adoptive mothers. Information on religious, specifically Islamic, perspectives on breastfeeding and child adoption laws was gathered from websites, social networks, blogs, magazines and online news sources. In consideration of recent advancements in medical technology and the dire need among Malaysians, it is crucial that evidence-based, accurate and reliable information on induced lactation is made available to professionals and other individuals in this country.

Matched MeSH terms: Technology
Punctal plug: a medical device to treat dry eye syndrome and for sustained drug delivery to the eye

Yellepeddi VK, Sheshala R, McMillan H, Gujral C, Jones D, Raghu Raj Singh T

Drug Discov Today, 2015 Jul;20(7):884-9.
PMID: 25668579 DOI: 10.1016/j.drudis.2015.01.013

Punctal plugs (PPs) are miniature medical implants that were initially developed for the treatment of dry eyes. Since their introduction in 1975, many PPs made from different materials and designs have been developed. PPs, albeit generally successful, suffer from drawbacks such as epiphora and suppurative canaliculitis. To overcome these issues intelligent designs of PPs were proposed (e.g. SmartPLUG™ and Form Fit™). PPs are also gaining interest among pharmaceutical scientists for sustaining drug delivery to the eye. This review aims to provide an overview of PPs for dry eye treatment and drug delivery to treat a range of ocular diseases. It also discusses current challenges in using PPs for ocular diseases.

Matched MeSH terms: Technology, Pharmaceutical/methods
Fulltext Temperature compensation in determining of Remazol black B concentrations using plastic optical fiber based sensor

Chong SS, Aziz AR, Harun SW, Arof H

Sensors (Basel), 2014;14(9):15836-48.
PMID: 25166498 DOI: 10.3390/s140915836

In this study, the construction and test of tapered plastic optical fiber (POF) sensors, based on an intensity modulation approach are described. Tapered fiber sensors with different diameters of 0.65 mm, 0.45 mm, and 0.35 mm, were used to measure various concentrations of Remazol black B (RBB) dye aqueous solutions at room temperature. The concentrations of the RBB solutions were varied from 0 ppm to 70 ppm. In addition, the effect of varying the temperature of the RBB solution was also investigated. In this case, the output of the sensor was measured at four different temperatures of 27 °C, 30 °C, 35 °C, and 40 °C, while its concentration was fixed at 50 ppm and 100 ppm. The experimental results show that the tapered POF with d = 0.45 mm achieves the best performance with a reasonably good sensitivity of 61 × 10(-4) and a linearity of more than 99%. It also maintains a sufficient and stable signal when heat was applied to the solution with a linearity of more than 97%. Since the transmitted intensity is dependent on both the concentration and temperature of the analyte, multiple linear regression analysis was performed to combine the two independent variables into a single equation. The resulting equation was then validated experimentally and the best agreement between the calculated and experimental results was achieved by the sensor with d = 0.45 mm, where the minimum discrepancy is less than 5%. The authors conclude that POF-based sensors are suitable for RBB dye concentration sensing and, with refinement in fabrication, better results could be achieved. Their low fabrication cost, simple configuration, accuracy, and high sensitivity would attract many potential applications in chemical and biological sensing.

Matched MeSH terms: Fiber Optic Technology/instrumentation*
Cholinesterase inhibitory activity versus aromatic core multiplicity: a facile green synthesis and molecular docking study of novel piperidone embedded thiazolopyrimidines

Basiri A, Murugaiyah V, Osman H, Kumar RS, Kia Y, Hooda A, et al.

Bioorg Med Chem, 2014 Jan 15;22(2):906-16.
PMID: 24369842 DOI: 10.1016/j.bmc.2013.11.020

Novel thiazolopyrimidine derivatives have been synthesized via microwave assisted, domino cascade methodology in ionic liquid and evaluated in vitro for their acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activities. Among the newly synthesized compounds 6d, 6a, 6e and 6b displayed higher AChE inhibitory activity than standard drug, galanthamine, with IC50 values of 0.53, 1.47, 1.62 and 2.05μM, respectively. Interestingly, all the compounds except for 6m-r and 6x displayed higher BChE inhibitory potentials than galanthamine with IC50 values ranging from 1.09 to 18.56μM. Molecular docking simulations for 6d possessing the most potent AChE and BChE inhibitory activities, disclosed its binding interactions at the active site gorge of AChE and BChE enzymes.

Matched MeSH terms: Green Chemistry Technology*
Effects of Bluetooth device electromagnetic field on hearing: pilot study

Balachandran R, Prepageran N, Prepagaran N, Rahmat O, Zulkiflee AB, Hufaida KS

J Laryngol Otol, 2012 Apr;126(4):345-8.
PMID: 22310164 DOI: 10.1017/S0022215112000047

The Bluetooth wireless headset has been promoted as a 'hands-free' device with a low emission of electromagnetic radiation.

Matched MeSH terms: Wireless Technology*
Fulltext Feasibility of fiber optic displacement sensor scanning system for imaging of dental cavity

Rahman HA, Che Ani AI, Harun SW, Yasin M, Apsari R, Ahmad H

J Biomed Opt, 2012 Jul;17(7):071308.
PMID: 22894469 DOI: 10.1117/1.JBO.17.7.071308

The purpose of this study is to investigate the potential of intensity modulated fiber optic displacement sensor scanning system for the imaging of dental cavity. Here, we discuss our preliminary results in the imaging of cavities on various teeth surfaces, as well as measurement of the diameter of the cavities which are represented by drilled holes on the teeth surfaces. Based on the analysis of displacement measurement, the sensitivities and linear range for the molar, canine, hybrid composite resin, and acrylic surfaces are obtained at 0.09667 mV/mm and 0.45 mm; 0.775 mV/mm and 0.4 mm; 0.5109 mV/mm and 0.5 mm; and 0.25 mV/mm and 0.5 mm, respectively, with a good linearity of more than 99%. The results also show a clear distinction between the cavity and surrounding tooth region. The stability, simplicity of design, and low cost of fabrication make it suitable for restorative dentistry.

Matched MeSH terms: Fiber Optic Technology/instrumentation*
Fulltext Fabrication and characterization of gelatin stabilized silver nanoparticles under UV-light

Darroudi M, Ahmad MB, Zak AK, Zamiri R, Hakimi M

Int J Mol Sci, 2011;12(9):6346-56.
PMID: 22016663 DOI: 10.3390/ijms12096346

Silver nanoparticles (Ag-NPs) were successfully synthesized using the UV irradiation of aqueous solutions containing AgNO(3) and gelatin as a silver source and stabilizer, respectively. The UV irradiation times influence the particles' diameter of the Ag-NPs, as evidenced from surface plasmon resonance (SPR) bands and transmission electron microscopy (TEM) images. When the UV irradiation time was increased, the mean size of particles continuously decreased as a result of photoinduced Ag-NPs fragmentation. Based on X-ray diffraction (XRD), the UV-irradiated Ag-NPs were a face-centered cubic (fcc) single crystal without any impurity. This study reveals that the UV irradiation-mediated method is a green chemistry and promising route for the synthesis of stable Ag-NPs for several applications (e.g., medical and surgical devices). The important advantages of this method are that it is cheap, easy, and free of toxic materials.

Matched MeSH terms: Green Chemistry Technology/methods
Fulltext Green synthesis and antibacterial effect of silver nanoparticles using Vitex negundo L

Zargar M, Hamid AA, Bakar FA, Shamsudin MN, Shameli K, Jahanshiri F, et al.

Molecules, 2011 Aug 08;16(8):6667-76.
PMID: 25134770 DOI: 10.3390/molecules16086667

Different biological methods are gaining recognition for the production of silver nanoparticles (Ag-NPs) due to their multiple applications. One of the most important applications of Ag-NPs is their use as an anti-bacterial agent. The use of plants in the synthesis of nanoparticles emerges as a cost effective and eco-friendly approach. In this study the biosynthesis of silver nanoparticles using Vitex negundo L. extract and its antimicrobial properties has been reported. The resulting silver particles are characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD) and UV-Visible (UV-Vis) spectroscopic techniques. The TEM study showed the formation of silver nanoparticles in the 10-30 nm range and average 18.2 nm in size. The XRD study showed that the particles are crystalline in nature, with a face centered cubic (fcc) structure. The silver nanoparticles showed the antimicrobial activity against Gram positive and Gram negative bacteria. Vitex negundo L. was found to display strong potential for the synthesis of silver nanoparticles as antimicrobial agents by rapid reduction of silver ions (Ag+ to Ag0).

Matched MeSH terms: Green Chemistry Technology/methods*

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