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Morphological and molecular characterization of fungus isolated from tropical bed bugs in Northern Peninsular Malaysia, Cimex hemipterus(Hemiptera: Cimicidae)

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Asian Pacific Journal of Tropical Biomedicine 2015年第9期5卷 684-690页

作者： abdul Hafiz Ab Majid Zulaikha Zahran abd hafis abd rahim Nor Azliza Ismail Wardah abdul Rahman Kartiekasari Syahidda Mohammad Zubairi Hamady Dieng Tomomitsu Satho Household and Structural Urban Entomology Laboratory School of Biological Sciences Universiti Sains Malaysia Plant Pathology Laboratory School of Biological Sciences Universiti Sains Malaysia Institute of Biodiversity and Environmental Conservation Universiti Malaysia Sarawak Department of Microbiology Faculty of Pharmaceutical Sciences Fukuoka University

Objective:To investigate some morphological and molecular characteristics of fungal parasites isolated from wild tropical bed bug, Cimex ***: A series of culture methods were used to obtain fungal isolates from i eld-collected bed bugs. Characteristics of the isolates such as colony appearance, mycelial texture and pigmentation were studied to explore their morphology. Isolates were also subjected to a PCRbased genotyping ***: There were noticeable dif erences in morphological characteristics among the four isolates. Conidial areas of one isolate were dark green, whereas those of the remaining colonies were olive-green, black or dark brown. Conidia of the dark green isolate were globose, while those of olive-green, black and dark brown isolates were globose to subglobose, globose to spherical and globose to subglobose/i nely roughened, respectively. These morphological specii cities and the molecular analyses showed that the fungal internal transcribed spacer ribosomal region and β-tubulin gene sequences of the isolates shared clade with Trichoderma and Aspergillus ***: Overall, the new discovery of common pathogens in agricultural i eld developed in live bed bugs storage tank may initiate the use of biological agents in later years.

关键词： Cimex hemipterus Aspergillus Trichoderma β-tubulin Internal transcribed spacer Morphological characteristics

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Nutritional and therapeutic benefits of coconut milk and its potential as a plant-based functional yogurt alternative: a review

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Food Science and Human Wellness 2024年

作者： Gengghatarani Gengan Nurul Solehah Mohd Zaini Nazamid Saari Anis Shobirin Meor Hussin Ahmad Haniff Jaafar Hanan Hasan Elicia Jitming Lim Wan abd Al Qadr Imad Wan-Mohtar Muhamad Hafiz abd rahim Functional Omics and Bioprocess Development Laboratory， Institute of Biological Sciences， Faculty of Science， Universiti Malaya Faculty of Food Science and Technology， Universiti Putra Malaysia School of Life and Environmental Sciences， The University of Sydney

Plant-based milks are on the rise due to an increased awareness of their sustainability and health benefits. Currently， dairy milk is the most nutritionally complete beverage， but it suffers from the presence of indigestible lactose and allergenic proteins. Coconut milk has been around for a long time， but its application is limited due to a perceived lack of specific nutrients， high saturated fat levels， and low acceptability. Recent evidence indicates， however， that the saturated fat and other plant-based components found in coconut milk are good for metabolic outcomes and brain health. The conversion of coconut milk to yoghurt will further improve its functionality by boosting its existing nutritional qualities. In this article， the nutritional value of coconut milk， as well as its potential downsides， its application as yoghurt， and suggestions for enhancing its nutritional functionality will be examined.

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A review of salivary composition changes induced by fasting and its impact on health

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Food Science and Human Wellness 2024年第1期13卷 50-64页

作者： Nurul Fadhilah Kamalul Aripin NIdayu Zahid Mohd Aizat abdul rahim Hashim Yaacob Parvez I.Haris Zubaidah Haji abdrahim Rauzah Hashim School of Chemical Engineering College of EngineeringUniversiti Teknologi MARAShah Alam 40450Malaysia Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly Department of ChemistryFaculty of ScienceUniversiti MalayaKuala Lumpur 50603Malaysia Department of Oral and Craniofacial Sciences Faculty of DentistryUniversiti MalayaKuala Lumpur 50603Malaysia UMSC Dental Specialist Clinic UM Dentistry TowerUniversiti MalayaMedical CentreKuala Lumpur 50603Malaysia Leicester School of Allied Health Sciences De Montfort UniversityLeicester LE19BHUnited Kingdom Chancellery(Research and Innovation) Universiti MalayaKuala Lumpur 50603Malaysia

Human saliva is an indispensable fluid that maintains a healthy oral cavity which otherwise can lead to oral diseases(dental caries and periodontitis).In addition,salivary metabolites and microbiome profile provide early detection of systemic diseases such as cancer and *** diagnostic has gained popularity due to its non-invasive sampling ***(abstinence from food or drink or both)research for weight loss and improve health is common,but studies using fasting saliva are *** metabolites in fasting saliva have been reported with interesting results,which can be enhanced by considering different confounding *** example,fasting saliva contains higher salivary nitrite,which is related to nitric oxide(NO).NO is a vasodilator supporting the healthy function of endothelial cells and its deficiency is connected to many *** timely supply of NO through exogenous and endogenous means is highlighted and the potential advantage of fasting salivary composition changes in relation to COVID-19 infection is *** review aims to provide a general discussion on the salivary composition,properties,and functions of the whole saliva,including the health benefits of fasting.

关键词： Saliva Fasting Nitrate Nitrite Nitric oxide

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Roles of fermented plant-,dairy-and meat-based foods in the modulation of allergic responses

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Food Science and Human Wellness 2023年第3期12卷 691-701页

作者： Muhamad Hafi z abd rahim Nur Hazlin Hazrin-Chong Hanis Hazeera Harith Wan abd Al Qadr Imad Wan-Mohtar Rashidah Sukor Faculty of Food Science and Technology Universiti Putra Malaysia43400 SerdangSelangorMalaysia Department of Biological Sciences and Biotechnology Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Faculty of Medicine and Health Sciences Universiti Putra Malaysia43400 SerdangSelangorMalaysia Functional Omics and Bioprocess Development Laboratory Institute of Biological SciencesFaculty of ScienceUniversiti Malaya50603 Kuala LumpurMalaysia Laboratory of Food Safety and Food Integrity Institute of Tropical Agriculture and Food SecurityUniversiti Putra Malaysia43400 SerdangSelangorMalaysia

This review attempts to delineate the effects and roles of fermented foods on allergic responses(AR),specifically from milk,plant,and meat *** for AR alleviation and aggravation were noted for many different fermented food *** outcomes on AR through fermented foods could be linked to microbial hydrolysis of food allergens,improvement in gut microbiota robustness,and modulation of the immune system that promotes a balance between T helper 1(Th1)and Th2 *** on plant-based,non-protein rich fermented foods tend to show more favourable results compared to those on meat-based or protein-rich *** usage of specific and known starter cultures are helpful in alleviating AR,as in the case for many yogurt,Kefir or Dahi *** fermentation time was also deemed important,exemplified in studies that showed inefficient AR reduction through consumption of fresh ***,formation of new allergens through fermentation of certain meat-based foods,or by using specific fermenting microbes(*** sp.),is ***,combination of starter cultures and food substrates must be considered in preventing or eliminating AR from intake of these *** review may aid consumers to make informed decision during the consumption of fermented food.

关键词： Allergy Fermented food Milk-based allergens Plant-based allergens Animal-based allergens

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Pest and disease incidence of coniferous species in Taman Saujana Hijau,Putrajaya urban park,Malaysia

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林业研究:英文版 2023年第6期34卷 2065-2077页

作者： Nura Adila Shamsul Kamar Siti Khadijah abd rahim Annya Anak Ambrose Norida Hanim Awing Zaiton Samdin Aff endy Hassan Mohd Nazre Saleh Razak Terhem Laboratory of Forest Pathology and Tree Health Department of Forestry Science and BiodiversityFaculty of Forestry and EnvironmentUniversiti Putra Malaysia UPM43400 SerdangSelangorMalaysia Industrial Forest Research Centre Sarawak Forest Department93250 KuchingSarawakMalaysia Laboratory of Sustainable Bioresource Management(BIOREM) Institute Tropical Forestry and Forest Products(INTROP)Universiti Putra Malaysia UPM43400 SerdangSelangorMalaysia Faculty of Tropical Forestry Universiti Malaysia Sabah88400 Kota KinabaluSabahMalaysia School of Business and Economics Universiti Putra Malaysia43400 SerdangSelangorMalaysia

Taman Saujana Hijau(TSH),Putrajaya is a 41-ha urban park planted with various coniferous species from around the *** pests and disease incidences of this park are unknown and there is a need for an evaluation of the health status of this urban *** study assessed the level of pest and disease incidents of coniferous species in 12 plots of 7 species(Araucaria bidwilii,Araucaria haterophylla,Araucaria cunninghamii,Pinus caribaea,Pinus merkusii,Podocarpus polystachyus,and Podocarpus costalis).Termites,canker disease,and foliar disease are three major *** highest pest and disease incidence(PnDI)was foliar disease with a 0.49 coefficient correlation between the total number of trees and the PnDI,followed by canker disease with 0.40,and termites with *** the seven conifers,*** was the most infected followed by *** and *** was concluded that the incidence of pests and diseases in TSH was *** our knowledge,this may be the first baseline inventory of pests and diseases of coniferous species in Malaysia.

关键词： Canker disease Coniferous species Foliar disease Pest and disease incidence Urban park

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Triple-Band Circularly Polarized Dielectric Resonator Antenna (DRA) for Wireless Applications

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Computers, Materials & Continua 2023年第1期74卷 313-325页

作者： Azuwa Ali Mohd Najib Mohd Yasin Ismahayati Adam Ali H.Rambe Mohd Haizal Jamaludin Hasliza A rahim Corhan Cengiz Mohd Ibrahim Shapiai abd.Razak Advanced Communication Engineering(ACE)Centre of Excellence Faculty Technology of Electrical EngineeringUniversiti Malaysia PerlisPauhPerlis02600Malaysia Advanced Communication Engineering(ACE)Centre of Excellence Faculty Technology of Electronic EngineeringUniversiti Malaysia PerlisPauhPerlis02600Malaysia Department of Electrical Engineering Universitas Sumatera UtaraMedan20155Indonesia Wireless Communication Center Universiti Teknologi MalaysiaSkudai81310JohorMalaysia Korhan Cengiz College of Information Technology University of FujairahFujairah00000United Arab Emirates Malaysia-Japan International Institute of Technology(M-JIIT) Universiti Teknologi MalaysiaKuala Lumpur54100Malaysia

This paper proposes a new dielectric resonator antenna(DRA)design that can generate circularly polarized(CP)triple-band *** CP DRA antenna fed by a probe feed system is achieved with metal strips structure on side of DRA *** design start with conventional rectangular DRA with F shaped metal strips on DRA structure alongside the ***,the F metal strip is enhanced by extending the length of the metal strip to obtain wider impedance *** improvement on the antenna performance is observed by improvised the conventional DRA *** method of removing part of DRA bottom resulted to higher antenna gain with triple band *** primary features of the proposed DRA include wide impedance matching bandwidth(BW)and broadband circular polarization(CP).The primary features of the proposedDRAinclude wide impedance matching bandwidth(BW)and broadband circular polarization(CP).The CP BW values recorded by the proposed antenna were∼11.27%(3.3–3.65 GHz),12.18%(4.17–4.69 GHz),and 1.74%(6.44–6.55 GHz)for impedance-matching BW values of 35.4%(3.3–4.69 GHz),1.74%(5.36–5.44 GHz),and 1.85%(6.41–6.55 GHz)with peak gains of 6.8 dBic,7.6 dBic,and 8.5 dBic,respectively,in the lower,central,and upper *** prototype of the proposed antenna geometry was fabricated and measured.A good agreement was noted between the simulated and the measured results.

关键词： Dielectric resonator antenna(DRA) circularly polarized(CP) parasitic element radiating element

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A Grid-tied PV Inverter with Sag-severity-independent Low-voltage Ride Through, Reactive Power Support, and Islanding Protection

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Journal of Modern Power Systems and Clean Energy 2021年第6期9卷 1300-1311页

作者： Muhammad Talha Siti Rohani S.Raihan Nasrudin abd.rahim UM Power Energy Dedicated Advanced Center(UMPEDAC) University of Malaya IEEE

This paper proposes a grid-tied photovoltaic(PV)inverter capable of low-voltage ride through(LVRT), reactive power support, and islanding protection. Unlike other LVRT inverters, the proposed inverter is independent of sag severity while maintaining the maximum power-point tracking(MPPT)under normal and faulty conditions. The addition of an energy storage buffer stage mitigates the DC-link voltage surge during sags. At the same time, the inverter injects the reactive power during back-to-back sags of variable depths. The control system of the inverter generates the appropriate reference signals for normal, LVRT, and anti-islanding modes while the MPPT continues running. The salient features of the proposed inverter are:(1) active power injection under normal grid conditions;(2)sag-depth independent LVRT with reactive power support;(3)no DC-link fluctuations;(4) continuous MPPT mode;and(5) simultaneous LVRT and anti-islanding support during a grid outage. The inverter demonstrates an uninterrupted operation and seamless transition between various operating modes. Simulations and the experimental prototype have been implemented to validate the efficacy of the proposed PV inverter.

关键词： Low-voltage ride through(LVRT) Sag maximum power point tracking(MPPT) single-phase photovoltaic(PV)inverter PV-battery system

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TelG Mote: A Green Wireless Sensor Node Platform for Smart Home and Ambient Assisted Living

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Journal of Electronic Science and Technology 2016年第3期14卷 211-219页

作者： Mohd Rozaini Bin abd rahim Rozeha A.Rashid Norsheila Fisal Zubair Khalid abdul Hadi Fikri abd Hamid Universiti Teknologi Malaysia

The wireless sensor network （WSN） consists of sensor nodes that interact with each other to collectively monitor environmental or physical conditions at different locations for the intended users. One of its potential deployments is in the form of smart home and ambient assisted living （SHAAL）to measure patients or elderly physiological signals, control home appliances, and monitor home. This paper focuses on the development of a wireless sensor node platform for SHAAL application over WSN which complies with the IEEE 802.15.4 standard and operates in 2.4 GHz ISM （industrial, scientific, and medical） band. The initial stage of SHAAL application development is the design of the wireless sensor node named TelG mote. The main features of TelG mote contributing to the green communications include low power consumption, wearable, flexible, user-friendly, and small sizes. It is then embedded with a self-built operating system named WiseOS to support customized operation. The node can achieve a packet reception rate （PRR） above 80% for a distance of up to 8 m. The designed TelG mote is also comparable with the existing wireless sensor nodes available in the market.

关键词： Smart home and ambient assisted living wireless sensor network wireless sensor node.

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Tonian–Ediacaran Tectonometamorphic History of the Sa'al Complex,Sinai(Egypt):Implications for the Tectonostratigraphic Framework of the Northern Arabian–Nubian Shield

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Acta Geologica Sinica(English Edition) 2022年第5期96卷 1545-1565页

作者： Mohamed W.ALI-BIK Suranjan GHOSH NPRABHAKAR Said Habd El rahim Hilmy EMOUSSA Geological Sciences Department National Research Centre(NRC)DokkiCairo 12622Egypt Department of Earth Sciences Indian Institute of Technology BombayMumbai 400076India

The Sa'al Metamorphic Complex(SMC;southern Sinai)encompasses the oldest arc rocks in the Arabian–Nubian Shield,comprising two non-consanguineous metavolcanic successions(the Agramiya Group and the Post-Ra'ayan Formation)separated by the metasediments of the Ra'ayan *** experienced three distinct deformational events(D_(1)–D_(3))and two low-medium grade regional metamorphic events(M_1–M_(2)).The Agramiya Group and the Ra'ayan Formation experienced all tectonometamorphic events(D_1–D_(3)and M_(1)–M_(2)),whereas the Post-Ra'ayan volcanic rocks were only affected by the D_(3)and M_(2)events.D_(1)is an extensional event and is connected to the late Rodinia break-up(~Tonian;900–870 Ma).The M_(1)metamorphism variably affected the older Agramiya Group,the rhyolitic tuffs experiencing lower to upper greenschist facies conditions and the basic and intermediate volcanic rocks undergoing amphibolite facies *** Ra'ayan Formation metasediments experienced upper greenschist to amphibolite facies *** upper greenschist facies M_(2)affected the youngest Post-Ra'ayan volcanic rocks and other stratigraphic *** compressive D_(2)and D_(3)events were coeval with the accretion of dismembered terranes in the assembly of Gondwana.D_(2)can be linked to the Tonian–Cryogenian arc-arc assembly(~880–760 Ma;in Elat and Sinai),whereas D_(3)and the accompanying M_(2)is constrained to 622–600 Ma(Ediacaran).

关键词： deformation microstructure metamorphism Sa'al Metamorphic Complex Arabian–Nubian Shield

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Preparation,characterization and thermophysical properties investigation of A70/polyaniline nanocomposite phase change material for medium temperature solar applications

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能源与人工环境(英文) 2021年第3期2卷 271-277页

作者： A.K.Pandey Mathew George Nasrudin abd rahim V.V.Tyagi Syed Shahabuddin R.Saidur Research Centre for Nano-Materials and Energy Technology(RCNMET) School of Science and TechnologySunway UniversityNo.5Jalan UniversitiBandar SunwayPetaling Jaya47500 Selangor Darul EhsanMalaysia Higher Institution Centre of Excellence(HICoE) UM Power Energy Dedicated Advanced Centre(UMPEDAC)Level 4Wisma R&DUniversity of MalayaJalan Pantai Baharu59990 Kuala LumpurMalaysia Renewable Energy Research Group King Abdulaziz UniversityJeddah 21589Saudi Arabia School of Energy Management Shri Mata Vaishno Devi UniversityKatra 182320(J&K)India Department of Science School of TechnologyPandit Deendayal Petroleum UniversityKnowledge CorridorRaisan VillageGandhinagar 382007GujratIndia

The ever-present demand for energy from various application in industrial and domestic processes has led to the consumption of fossil fuel at a rapid rate with adverse effect due to global *** study focuses on the thermal energy storage aspect intended for medium temperature applications.A novel composite A70 and PANI was prepared and *** study investigates the composites thermophysical and optical *** Scanning Calorimetry and Transient Hot Bridge measured thermal storage capacity and thermal conductivity of the composite,*** heat storage capacity of the composite remained stable within 4%whereas a highest rise of 11.96%in thermal conductivity was *** composites thermal,chemical,and physical stability were analysed from Thermogravimetric Analyser,Fourier Infrared Transform,and Scanning Electron Microscope,*** composites were thermally stable up to a temperature of 250°*** chemical reaction occurred between the nanomaterial and base PCM *** microscopic visuals did not show any considerable change in the microscopic structure of the *** the case of optical properties,the composites showed significant reduction in transmittance of solar spectrum with respect to pure *** maximum decrement in transmission was around~89%compared to *** the composite prepared were thermally stable till 250°C,hence may be utilized for solar thermal and low concentrated photovoltaic application but not limited to these.

关键词： Phase change materials Solar energy Thermal conductivity Latent heat Polyaniline

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