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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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The effect of replacing pnictogen elements on the physical properties of SrMg_2X_2(X=N,P,As,Sb,Bi) Zintl compounds

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Chinese Physics B 2018年第4期27卷 369-375页

作者： G Murtaza abdul Ahad Khan M Yaseen A Laref Naeem Ullah Inayat ur rahman Materials Modelling Labortary Department of PhysicsIslamia College University Department of Physics University of the Peshawar Department of Physics University of AgricultureFaisalabad Department of Physics and Astronomy College of ScienceKing Saud University Department of Physics City University of Hong Kong

The effect of replacing the anion from N to Bi down the group in the periodic table is investigated on SrMg2X2（X = N,P,As,Sb,Bi）.A full potential linearized augmented plane wave plus local orbitals method is used along with different exchange–correlation potentials to obtain the lattice constants,phonons,electronic,and optical properties of the Sr Mg2X2（X = N,P,As,Sb,Bi） Zintl compounds.A good agreement is achieved and our calculations are validated by previous experimental and theoretical *** compounds have shown stable dynamical behavior with gamma centered longitudinal response having no imaginary *** band structures reveal the semiconducting nature of the *** Pnictogen（X）-p state contributed mainly in the valence band and the Sr-d state forms the conduction of the *** charge transfer and low overlapping of the atomic densities indicates the preferable ionic bonding character of these *** the optical properties,real and imaginary parts of dielectric function,complex refractive index,birefringence,reflectivity,and optical conductivity are *** compounds can be utilized in the optical and optoelectronic devices.

关键词： Zintl compounds band structure optical response

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Utilization of compressed natural gas for the production of carbon nanotubes

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Journal of Natural Gas Chemistry 2012年第6期21卷 620-624页

作者： Kim-Yang Lee Wei-Ming Yeoh Siang-Piao Chai abdul rahman Mohamed School of Chemical Engineering Engineering Campus Universiti Sains Malaysia Seri AmpanganNibong Tebal 14300 S. P. S. Pulau Pinang Malaysia School of Engineering Monash University Jalan Lagoon SelatanBandar Sunway 46150 Selangor Malaysia

The present work aims at utilizing compressed natural gas （CNG） as carbon source for the synthesis of carbon nanotubes （CNTs） over CoO-MoO/Al2O3 catalyst via catalytic chemical vapor deposition （CCVD） method. The as-produced carbonaceous product was characterized by thermal gravimetric analyzer （TGA）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM） and Raman spectroscopy. The experimental finding shows that CNTs were successfully produced from CNG while carbon nanofibers （CNFs） were formed as the side products. In addition, the catalytic activity and lifetime were found sustained and prolonged, as compared with using high purity methane as carbon source. The present study suggests an alternative route which can effectively produce CNTs and CNFs using low cost CNG.

关键词： compressed natural gas carbon nanotubes carbon nanofibers catalytic chemical vapor deposition

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Disseminated strongyloidiasis in an immunocompromised host:A case report

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Asian Pacific Journal of Tropical Biomedicine 2017年第6期7卷 587-590页

作者： Nurul Suhaiza Hassanudin Zubaidah abdul Wahab Khalid Ibrahim Fadzilah Mohd nor Microbiology Unit Department of PathologyHospital Sg.Buloh Director Office Hospital Sg.Buloh Microbiology Discipline Faculty of MedicineUniversiti Teknologi MARASg.Buloh CampusJalan Hospital Integrative Pharmacogenomics Institute (iPROMISE) Level 7FF3Universiti Teknologi MARAPuncak Alam Campus

Infections caused by Strongyloides stercoralis(***) in human are generally asymptomatic,however in immunocompromised individual,hyperinfection may develop with dissemination of larvae to extra-intestinal *** diagnosis could be easily missed due to asymptomatic presentation and insufficient exposure towards the infection itself,which may lead to low index of suspicion as a *** this report,a case of a Malaysian male with underlying diabetes mellitus,hypertension,cerebrovascular accident,bullous pemphigus and syndrome of inappropriate antidiuretic hormone secretion who initially complained of generalized body weakness and poor appetite without any history suggestive of sepsis is ***,he developed septicemic shock later,and *** larvae was incidentally found in the tracheal aspirate that was sent to look for acid fast *** of aggressive resuscitation,the patient succumbed due to pulmonary hemorrhage and acute respiratory distress *** was revealed that the current case has alarmed us via incidental finding of *** larvae in the tracheal aspirate,indicating that the importance of the disease should be emphasized in certain parts of the world and population respectively.

关键词： Disseminated strongyloidiasis Immunocompromised host Hyperinfection Strongyloides stercoralis

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A study of the impact of environmental loads that penetrate a passive skylight roofing system in Malaysian buildings

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Frontiers of Architectural Research 2014年第2期3卷 178-191页

作者： Karam M. Al-Obaidi Mazran Ismail abdul Malek abdul rahman School of Housing Building & Planning Universiti Sains Malaysia Penang 11800 Malaysia

A passive skylight system is a significant building design element that provides an ideal condition for interior spaces. However, the use of this system is limited to specific climatic regions because of its considerable effect on the indoor environment. Malaysia is a tropical country that has favorable natural benefits, such as solar geometry and natural light, which can brighten building interiors throughout the year. However, harnessing this benefit affects spaces, especially those in single-story buildings, because of excessive natural loads. This study reviews a concept to understand the passive behavior of solar radiation in the form of light and heat that falls on, interacts with, and is emitted from a skylight system in a single-story building. The study method is theoretically based on descriptive analysis to assess design requirements. The review shows that designs grounded on the physical aspects of climate （influenced variables）, materials （design variables）, and human comfort （affected variables） in one process （ESI） can develop the architectural way of thinking rather than estimate the condition based on a limited perspective. This assumption indicates that the adoption of this concept in the preliminary design stage will enable designers to balance the building environment effectively.

关键词： Skylight system Tropics Solar radiation Light Heat Malaysian builtenvironment

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Passive cooling techniques through reflective and radiative roofs in tropical houses in Southeast Asia:A literature review

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Frontiers of Architectural Research 2014年第3期3卷 283-297页

作者： Karam M.Al-Obaidi Mazran Ismail abdul Malek abdul rahman School of Housing Building and PlanningUniversiti Sains Malaysia

Cooling is one of the major concerns in building tropical *** problem is exacerbated by the heat gain of the roof,which constitutes 70%of the total heat *** passive cooling technique is one of the innovative practices and technologies that provide buildings with comfortable conditions through natural *** and radiative processes are the methods used to decrease heat gain by facilitating the elimination of excess heat in a building's interior to maintain a comfortable *** that the potential of these techniques vary from region to region,their application in the tropics should be *** these approaches in detail allows us to rethink how to effectively adapt these techniques to overcome the build-up of heat in modern tropical houses in Southeast *** study reviews the physical characteristics of these approaches to guide architects and building *** indicate a great reduction in operational ***,the significant differences in the performance of colour and material properties should be considered,given that the selected approach strongly affects the required thermal conditions of a building.

关键词： Passive cooling Reflective roof Radiative roof Southeast Asia Tropical houses

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Factors Predicting Transformation of Non-Severe Pre-Eclampsia into Pre-Eclampsia with Severe Features

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Open Journal of Obstetrics and Gynecology 2023年第2期13卷 153-165页

作者： Mohammed Mahmoud Samy Ahmed Nagy abdul-rahman Younis Karim Mohammed Labib Departmenrt of Obstetrics and Gynecology Faculty of Medicine Ain Shams University Cairo Egypt Ain Shams University Cairo Egypt

Background: Pre-eclampsia (PE), a complex, multisystem, pregnancy-associated hypertensive disorder, typically developing after the 20th week of gestation, that complicates 2% - 8% of pregnancies, is a leading cause of neonatal and maternal mortality and morbidity. Aim of the Work: To identify different factors predicting transformation of non-severe pre-eclampsia in to pre-eclampsia with severe features. Patients and Methods: This prospective cohort study was conducted at tertiary care hospital at Ain Shams University hospitals from June 2021 till January 2022 and performed on total of 100 patients who diagnosed as non-severe pre-eclampsia after exclusion of severity features. Results: The current study revealed that transformation to severe pre-eclampsia occurred in 33% of the studied cases. Body mass index (BMI), past and family histories of preeclampsia statistically were significantly higher in cases transformed into preeclampsia with severe features. Admission blood pressure, albumin dipstick, Oligohydramnios and IUGR statistically were significantly higher in cases with transformation from non-severe pre-eclampsia into pre-eclampsia with severe features. Platelet count statistically was significantly lower in cases with transformation from non-severe pre-eclampsia into pre-eclampsia with severe features Conclusion: Our study results identified the most important clinical risk factors for transformation to severe features of pre-eclampsia from non-severe features and provided new information on the level of risk associated with specific combinations of risk factors (BMI ≥ 35.4, admission systolic blood pressure, admission diastolic blood pressure, albumin dipstick 4+ and platelets count) with low significant diagnostic performance in predicting transformation from non-severe pre-eclampsia into pre-eclampsia with severe features.

关键词： Pre-Eclampsia Blood Pressure Body Mass Index Platelet Count

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Seaweed farming for food and nutritional security,climate change mitigation and adaptation,and women empowerment:A review

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Aquaculture and Fisheries 2023年第5期8卷 463-480页

作者： Fahmida Sultana Md abdul Wahab Md Nahiduzzaman Md Mohiuddin Mohammad Zafar Iqbal Abrar Shakil abdullah-Al Mamun Md Sadequr rahman Khan LiLian Wong Md Asaduzzaman Department of Marine Bioresource Science Faculty of FisheriesChattogram Veterinary and Animal Sciences UniversityKhulshiChattogram4225Bangladesh ECOFISH-II Activity WorldFishBangladesh and South Asia OfficeBananiDhaka1213Bangladesh Department of Fisheries and Marine Science Noakhali Science and Technology UniversityNoakhali3814Bangladesh Institute of Marine Biotechnology Universiti Malaysia TerengganuKuala-TerengganuTerengganu21030Malaysia

Seaweed is a promising marine macroalgae of the millennium,providing various ecological,social,and economic *** present,seaweed production reached 35.8 million t from farming,accounting for 97%of global seaweed output,with a world market of US$11.8 *** are an excellent source of nutritious human food because of their low lipid content,high minerals,fibers,polyunsaturated fatty acids,polysaccharides,vitamins,and bioactive *** seaweed sub-products offer unique properties to develop various functional foods for the food processing *** the perspective of climate change mitigation,seaweed farms absorb carbon,serve as a CO_(2)sink and reduce agricultural emissions by providing raw materials for biofuel production and livestock *** farming system also helps in climate change adaptation by absorbing wave energy,safeguarding shorelines,raising the pH of the surrounding water,and oxygenating the waters to minimize the impacts of ocean acidification and hypoxia on a localized ***,it contributes substantially to the sustainable development of the economic condition of coastal women by providing livelihood opportunities and ensuring financial *** review paper highlights the significance of seaweed farming in global food and nutritional security,mitigation and adaptation to global climate change,and women empowerment within a single *** review paper also outlined the major issues and challenges of seaweed farming for obtaining maximum benefits in these *** main challenges of making seaweed as a staple diet to millions of people include producing suitable species of seaweeds,making seaweed products accessible,affordable,nutritionally balanced,and attractive to the *** food products must be developed from seaweeds that may be considered equivalent to the foods consumed by humans *** of effective marine spatial planning to avoid user conflicts is vital for expanding the seawee

关键词： Seaweed Functional food Nutritional security Blue carbon Climate change adaptation Women empowerment

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Absence of postzygotic isolating mechanisms:evidence from experimental hybridization between two species of tropical sea urchins

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2012年第10期13卷 797-810页

作者： M.Aminur rahman Tsuyoshi UEHARA Aziz ARSHAD Fatimah Md.YUSOFF Mariana nor SHAMSUDIN Laboratory of Marine Biotechnology Institute of BioscienceUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia Department of Chemistry Biology and Marine ScienceFaculty of ScienceUniversity of the Ryukyus1 SenbaruNishihara-choOkinawa 903-0213Japan Department of Aquaculture Faculty of AgricultureUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia

Two reef margin species of tropical sea urchins,Echinometra sp.C(Ec) and Echinometra oblonga(Eo),occur sympatrically on Okinawa intertidal reefs in southern *** between these species was examined through a series of cross-fertilization *** limited sperm concentrations,where conspecific crosses reached near 100% fertilization,both heterospecific crosses showed high fertilization rates(81%-85%).The compatibility of the gametes demonstrated that if gamete recognition molecules are involved in fertilization of these species,they are not strongly *** found that conspecific crosses reached peak fertilization levels much faster than did heterospecific crosses,indicating the presence of a prezygotic barrier to hybridization in the *** survival,metamorphosis,and juvenile and adult survival of hybrid groups were nearly identical to those of their parent *** from crosses in both directions developed normally through larval stages to sexually mature adults,indicating that neither gametic incompatibility nor hybrid inviability appeared to maintain reproductive isolation between these *** adults,Ec×Ec crosses gave the highest live weight,followed by Eo(ova)×Ec(sperm),Ec(ova)×Eo(sperm),and Eo×*** growth performance measures(viz.,test size,Aristotle's lantern length,and gonad index) of hybrid groups and their parental siblings showed the same *** phenotypic color patterns of the hybrids were closer to the maternal coloration,whereas spine length,tube-foot and gonad spicule characteristics,pedicellaria valve length,and gamete sizes showed intermediate *** F 1 hybrids were completely fertile and displayed high fertilization success in F 1 backcrosses,eliminating the likelihood that hybrid sterility is a postzygotic mechanism of reproductive ***,intensive surveys failed to find hybrid individuals in the field,suggesting the lack or rarity of natural *** stron

关键词： Sea urchins Echinometra Hybridization Gamete compatibility Reproductive isolation Speciation

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Tin stearate organometallic precursor prepared SnO_2 quantum dots nanopowder for aqueous- and non-aqueous medium photocatalytic hydrogen gas evolution

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Journal of Energy Chemistry 2016年第4期25卷 691-701页

作者： Choonyian Haw Weesiong Chiu Noor Hamizah Khanis Saadah abdul rahman Poisim Khiew shahidan Radiman Roslan Abd-Shukor Muhammad Azmi abdul Hamid Low Dimensional Materials Research Centre Department of PhysicsUniversity of Malaya Department of Chemical Engineering Faculty of EngineeringUniversity of Nottingham Malaysia CampusJalan Broga School of Applied Physics Faculty of Science and TechnologyNational University of Malaysia

Current study reports a rapid one-pot non-hydrolytic condition in the synthesis of Sn O2QDs nanopowder using tin(II) stearate(Sn(St)2) as environmentally-benign organometallic precursor,which is an unprecedentedly employed-compound in preceding Sn O2nanopowder *** as-synthesized Sn O2QDs that are hydrophobic can be easily transferred from organic solvent to aqueous solution through a robust ligand exchange *** stearate-capping ligands on the surface of QDs can be replaced by beta-cyclodextrin(β-CD) and eventually render the QDs highly water soluble,which ultimately make it exhibit bi-functionality for different liquid medium *** characterizations reveal that the bi-functional QDs are indeed well-matched with the standard rutile Sn O2cassiterite phase without the presence of any *** QDs can be interchangeably used as photocatalyst for both aqueous and non-aqueous phase,where it shows significant enhancement of hydrogen gas production as compared to that of commercial Sn O2nanopowder.

关键词： SnO2 Tinstearate Precursors Ligand exchange Photocatalyst Hydrogen gas production

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