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Trichomonas vaginalis infection in a low-risk women attended in Obstetrics and Gynaecology Clinic, Universiti Kebangsaan Malaysia Medical Centre

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Asian Pacific Journal of Tropical Biomedicine 2016年第8期6卷 702-705页

作者： norhayati Moktar nor liyana ismail Phoy Cheng Chun Mohamad Asyrab Sapie nor Farahin Abdul Kahar Yusof Suboh noraina Abdul Rahim nor Azlin Mohamed ismail Tengku Shahrul Anuar Department of Parasitology and Medical Entomology Universiti Kebangsaan Malaysia Medical Centre Department of Obstetrics and Gynaecology Universiti Kebangsaan Malaysia Medical Centre Department of Medical Laboratory Technology Faculty of Health Sciences Universiti Teknologi MARAPuncak Alam Campus

Objective: To investigate the presence of trichomoniasis among women attending the Obstetrics and Gynaecology Clinic, Universiti Kebangsaan Malaysia Medical ***: A total of 139 high vaginal swabs were taken from the subjects and sent to the laboratory in Amies gel transport media. The specimens were examined for the presence of Trichomonas vaginalis using wet mount, Giemsa staining and cultured in Diamond's medium. Sociodemographic characteristics and gynaecological complaints were obtained in private using structured questionnaire applied by one ***: The median age was 32 years, with an interquartile interval of 9.96. Most of the subjects were Malays(76.9%) and the remaining were Chinese(15.1%), Indians(2.2%)and other ethnic groups(5.8%). One hundred and thirty eight(99.3%) of the women were married and 98.6% had less than 6 children. More than half(75.5%) of the women's last child birth was less than 6 years ago. Forty seven percent of them were involved in supporting administrative work and 64.7% of the women gave a history of previous or current vaginal ***: The present study reported zero incidence rate of trichomoniasis. The low incidence rate was postulated due to all women who participated in this study were categorized into a low-risk group.

关键词： Trichomoniasis Incidence rate Wet mount Giemsa staining Culture

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Multi-valued interval neutrosophic linguistic soft set theory and its application in knowledge management

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CAAI Transactions on Intelligence Technology 2020年第3期5卷 200-208页

作者： nor liyana Amalini Mohd Kamal Lazim Abdullah Ilyani Abdullah Muhammad Saqlain Faculty of Ocean Engineering and Informatics Universiti Malaysia Terengganu21030 Kuala NerusTerengganuMalaysia Department of Mathematics Lahore Garrison UniversityDHA Phase VISector-CLahorePakistan

This study proposed the concepts of a multi-valued interval neutrosophic linguistic soft set(MVINLSS)by integrating the concepts of multi-valued interval neutrosophic soft set and linguistic *** is presented as it can deal with ambiguous and uncertain information in decision making which is characterised by linguistic *** proposed set amalgamates quantitative assessment with the qualitative assessment which can solve complex problems with ambiguity,uncertainty,and *** can be an effective tool to describe the real decision-makers’opinions and reflect their ***,the authors propose the basic operational rules of ***,they define a multi-valued interval neutrosophic linguistic soft weighted arithmetic averaging *** work proposed a multi-criteria decision-making(MCDM)method which considers different priority levels of criteria and the criteria values take the form of multi-valued interval neutrosophic linguistic soft ***,the proposed MCDM method is applied to the knowledge management case,considering 11 criteria.

关键词： valued qualitative integrating

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Beamforming techniques for massive MIMO systems in 5G:overview,classification,and trends for future research

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Frontiers of Information Technology & Electronic Engineering 2017年第6期18卷 753-772页

作者： Ehab ALI Mahamod ismail Rosdiadee norDIN nor Fadzilah ABDULAH Department of Electrical Electronic and System EngineeringUniversiti Kebangsaan Malaysia(UKM)Bangi 43600Malaysia

Massive multiple-input multiple-output(MIMO) systems combined with beamforming antenna array technologies are expected to play a key role in next-generation wireless communication systems(5G), which will be deployed in 2020 and beyond. The main objective of this review paper is to discuss the state-of-the-art research on the most favourable types of beamforming techniques that can be deployed in massive MIMO systems and to clarify the importance of beamforming techniques in massive MIMO systems for eliminating and resolving the many technical hitches that massive MIMO system implementation faces. Classifications of optimal beamforming techniques that are used in wireless communication systems are reviewed in detail to determine which techniques are more suitable for deployment in massive MIMO systems to improve system throughput and reduce intra-and inter-cell interference. To overcome the limitations in the literature, we have suggested an optimal beamforming technique that can provide the highest performance in massive MIMO systems, satisfying the requirements of next-generation wireless communication systems.

关键词： Beamforming classifications Massive MIMO Hybrid beamforming Millimetre-wave beamforming

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A review of extreme condition effects on solder joint reliability:Understanding failure mechanisms

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Defence Technology（防务技术） 2024年第11期41卷 134-158页

作者： norliza ismail Wan Yusmawati Wan Yusoff Azuraida Amat nor Azlian Abdul Manaf Nurazlin Ahmad Department of Physics Centre for Defence Foundation StudiesUniversiti Pertahanan Nasional MalaysiaKem Sungai BesiKuala Lumpur57000Malaysia Centre for Tropicalization(CENTROP) Defence Research InstituteUniversiti Pertahanan Nasional MalaysiaKem Sungai BesiKuala Lumpur57000Malaysia

Solder joint,crucial component in electronic systems,face significant challenges when exposed to extreme conditions during *** solder joint reliability involving microstructure and mechanical properties will be affected by extreme *** the behaviour of solder joints under extreme conditions is vital to determine the durability and reliability of solder *** review paper aims to comprehensively explore the underlying failure mechanism affecting solder joint reliability under extreme *** study covers an in-depth analysis of effect extreme temperature,mechanical stress,and radiation conditions towards solder *** of each condition to the microstructure including solder matrix and intermetallic compound layer,and mechanical properties such as fatigue,shear strength,creep,and hardness was thoroughly *** failure mechanisms were illustrated in graphical diagrams to ensure clarity and ***,the paper highlighted mitigation strategies that enhancing solder joint reliability under challenging operating *** findings offer valuable guidance for researchers,engineers,and practitioners involved in electronics,engineering,and related fields,fostering advancements in solder joint reliability and performance.

关键词： Solder joint Extreme condition Failure mechanism Defence and military Reliability

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A comprehensive review of radiation effects on solder alloys and solder joints

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Defence Technology（防务技术） 2024年第9期39卷 86-102页

作者： norliza ismail Wan Yusmawati Wan Yusoff nor Azlian Abdul Manaf Azuraida Amat Nurazlin Ahmad Emee Marina Salleh Department of Physics Centre for Defence Foundation StudiesUniversiti Pertahanan Nasional MalaysiaKem Sungai BesiKuala Lumpur 57000Malaysia Department of Mineral and Geoscience Malaysia Mineral Research CentreJalan Sultan Azlan ShahIpoh 31400PerakMalaysia

In the realm of military and defence applications, exposure to radiation significantly challenges the performance and reliability of solder alloys and joints in electronic systems. This comprehensive review examines radiation-induced effects on solder alloys and solder joints in terms of microstructure and mechanical properties. In this paper, we evaluate the existing literature, including experimental studies and fundamental theory, to provide a comprehensive overview of the behavior of solder materials under radiation. A review of the literature highlights key mechanisms that contribute to radiation-induced changes in the microstructure, such as the formation of intermetallic compounds, grain growth,micro-voids and micro-cracks. Radiation is explored as a factor influencing solder alloy hardness,strength, fatigue and ductility. Moreover, the review addresses the challenges and limitations inherent in studying the effects of radiation on solder materials and offers recommendations for future research. It is crucial to understand radiation-induced effects on solder performance to design robust and radiationresistant electronic systems. A review of radiation effects on solder materials and their applications in electronics serves as a valuable resource for researchers, engineers, and practitioners in that field.

关键词： Defence technology Solder alloy Solder joints Radiation-induced effect Microstructure Mechanical properties

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Taurine protects against retinal and optic nerve damage induced by endothelin-1 in rats via antioxidant effects

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Neural Regeneration Research 2018年第11期13卷 2014-2021页

作者： Natasha Najwa nor Arfuzir Renu Agarwal Igor Iezhitsa Puneet Agarwal Sabrilhakim Sidek Nafeeza Mohd ismail Center for Neuroscience Research Faculty of MedicineUniversiti Teknologi MARA Sungai Buloh Campus Volgograd State Medical University Research Institute of Pharmacology Faculty of Medicine International Medical UniversityIMU Clinical School

Endothelin-1（ET-1）, a potent vasoconstrictor, is involved in retinal vascular dysregulation and oxidative stress in glaucomatous eyes. Taurine（TAU）, a naturally occurring free amino acid, is known for its neuroprotective and antioxidant properties. Hence, we evaluated its neuroprotective properties against ET-1 induced retinal and optic nerve damage. ET-1 was administered intravitreally to Sprague-Dawley rats and TAU was injected as pre-, co-or post-treatment. Animals were euthanized seven days post TAU injection. Retinae and optic nerve were examined for morphology, and were also processed for caspase-3 immunostaining. Retinal redox status was estimated by measuring retinal superoxide dismutase, catalase, glutathione, and malondialdehyde levels using enzyme-linked immuosorbent assay. Histopathological examination showed significantly improved retinal and optic nerve morphology in TAU-treated groups. Morphometric examination showed that TAU pre-treatment provided marked protection against ET-1 induced damage to retina and optic nerve. In accordance with the morphological observations, immunostaining for caspase showed a significantly lesser number of apoptotic retinal cells in the TAU pre-treatment group. The retinal oxidative stress was reduced in all TAU-treated groups, and particularly in the pre-treatment group. The findings suggest that treatment with TAU, particularly pre-treatment, prevents apoptosis of retinal cells induced by ET-1 and hence prevents the changes in the morphology of retina and optic nerve. The protective effect of TAU against ET-1 induced retinal and optic nerve damage is associated with reduced retinal oxidative stress.

关键词： endothelin-1 retina optic nerve taurine oxidative stress

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Recovery of bird communities following the construction of a large-scale hydroelectric dam

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Ecological Processes 2021年第1期10卷 408-417页

作者： Affan Nasruddin-Roshidi Mohammad Saiful Mansor nor Adibah ismail Ehwan Ngadi Mohd Izzat-Husna Shahril Mod Husin Farah Shafawati Mohd-Taib Rahmah Illias Shukor Md nor Department of Biological Sciences and Biotechnology Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Kolej GENIUS Insan Universiti Sains Islam MalaysiaBandar Baru Nilai71800 NilaiNegeri SembilanMalaysia TNB Research Sdn Bhd No.1Kawasan Institusi PenyelidikanJalan Ayer Itam43000 KajangSelangorMalaysia Department of Wildlife and National Parks(PERHILITAN) Km.10Jln Cheras56100 Kuala LumpurWilayah PersekutuanMalaysia.

Background:Habitat degradation is known to have a major impact on the composition of bird communities,yet how these communities recover following such disturbance is less *** study examined bird community changes from pre-logging to recovery over the course of habitat disturbance caused by the development of the Hulu Terengganu Hydroelectric Dam Project in Peninsular Malaysia,between 2007 and *** surveys were conducted using point count observations and mist netting in the dam area from the prelogging phase until the operation ***:It was observed that while bird species significantly declined after large-scale habitat clearance between the pre-logging and construction phases,they showed positive signs of recovery from the inundation to operation *** findings indicate that the bird community is still recovering,and the permanent loss of habitat required by most of the original species has not occurred,as evidenced by *** species composition differed across phases due to varying habitat *** turnover rate and immigration rate(recolonisation and newly recorded species)were higher between the construction and operation *** was also observed that insectivorous birds were more heavily affected than others by changes to the landscape,which highlights the versatility,survivability and tolerance of certain species to extreme disturbance and habitat ***:Although the operation phase showed an incremental change in bird species richness due to recolonisation and newly recorded species,this value remains far from that of the pre-logging *** predict that bird species recovery will continue to increase for some time before reaching a plateau among the newly created islands,reservoir and catchment area of the dam.

关键词： Dam construction Extinction Habitat recovery Recolonisation Turnover

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A Q-Switched Erbium-Doped Fiber Laser with a Carbon Nanotube Based Saturable Absorber

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Chinese Physics Letters 2012年第11期29卷 67-69页

作者： S.W.Harun M.A.ismail F.Ahmad M.F.ismail R.M.nor N.R.Zulkepely H.Ahmad Department of Electrical Engineering University of Malaya 50603 Kuala LumpurMalaysia Photonics Research Center Department of PhysicsUniversity of Malaya50603 Kuala LumpurMalaysia Department of Physics University of Malaya50603 Kuala LumpurMalaysia

We demonstrate a simple,compact and low cost Q-switched erbium-doped fiber laser(EDFL)using single-wall carbon nanotubes(CNTs)as a saturable absorber for possible applications in metrology,sensing,and medical *** EDFL operates at around 1560 nm with repetition rates of 16.1 kHz and 6.4 kHz with saturable absorbers SA1 and SA2 at a pump power of 120 *** absorbers are constructed by optically driven deposition and normal deposition *** is observed that the optical deposition method produces a Q-switched EDFL with a lower threshold of 70 mW and better Q-switching performance compared to that of the normal deposition *** EDFL also has pulse energy of 90.3 nJ and pulse width of 11.6μs at 120 mW pump power.

关键词： pump switched Erbium

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Zinc and Copper Concentrations in Two Species of Intertidal Crabs from the Middle of the West Coast of Peninsular Malaysia

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湿地科学 2009年第3期7卷 218-229页

作者： Mohammad Mohd Ikram Ahmad ismail Chee Kong Yap nor Azwady Abd Aziz Department of Basic Science and Engineering Faculty of Agriculture and Food Sciences Universiti Putra Malaysia Bintulu Sarawak 97008 Malaysia Department of Biology Faculty of ScienceUniversiti Putra Malaysia UPM 43400 Serdang Selangor Malaysia

A study on Zn and Cu concentrations in 2 species of intertidal crabs,namely Uca annulipes and Dotilla myctiroides collected from the intertidal coastal area of Selangor(5 sites) and Negeri Sembilan(3 sites),west coast of Peninsular Malaysia,was carried *** various localized sources of Zn and Cu discharges towards both the crab species were mentioned.A comparative study between the 2 crab species also revealed that the concentrations of Zn and Cu were significantly(P<0.05) higher in *** when compared to *** difference was related to the organic matter percentage in the crabs' microhabitat sediments since metals can be associated with the organic matter of sediments in which they might ***(P<0.05) higher organic matter content was shown in *** sediments when compared to *** sediments for all *** metal and size relationship in the crabs was also *** relationships between Zn and Cu concentrations with body weight and carapace width of *** and *** were significantly(P<0.01 and P<0.05) correlated although the pair wise was weak.

关键词：沉积物马来西亚半岛有机物质螃蟹

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Identifications of drug resistance mutations among antiretroviral treatment naive HIV-1 patients in Peninsular Malaysia

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Asian Pacific Journal of Tropical Medicine 2017年第1期10卷 73-76页

作者： Rozainanee Mohd Zain Nabila Ibrahim Suriani ismail Jeyanthi Suppiah nor Aziyah Mat Rahim Ravindran Thayan Virology Unit Institute for Medical ResearchInfectious Disease Research CentreJalan Pahang50588Kuala LumpurMalaysia

Objective: To determine drug resistance mutations and the HIV-1 subtypes among antiretroviral treatment naive HIV-1 patients in Peninsular Malaysia,Methods: A total of 45 samples from four hospitals that provide HIV viral load services were subjected to the amplification of the protease and two third of reverse transcriptase regions of the pol gene by RT-PCR and Sanger sequencing,Drug resistance mutation(DRM) interpretation reports the presence of mutations related to protease inhibitors(PIs),Nucleoside reverse-transcriptase inhibitors(NRTI) and Non-nucleoside reverse-transcriptase inhibitors(NNRTI) based on analysis using Stanford HIV database program,Results: DRMs were identified in 35% of patients,among which 46.7% of them showed minor resistance to protease inhibitor with A71 V and L10 l were the commonest DRMs detected,About 21.4% and 50.0% of patients had mutations to NRTIs and NNRTIs,respectively,CRF01_AE was found to be the predominant HIV-1 subtype,Conclusions: These findings have served as an initial crucial data in determining the prevalence of transmitted HIV-1 drug resistance for the country,However,more samples from various parts of the country need to be accumulated and analyzed to provide overall HIV-1 drug resistance in the country.

关键词： HIV Resistance Malaysia Antiretroviral treatment naive

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