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2017

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Articles 181 - 210 of 420

Full-Text Articles in Biotechnology

On The Dense Families In The Relational Datamodel, Duc Thy Vu, Son Nguyen Hoang Nov 2017

On The Dense Families In The Relational Datamodel, Duc Thy Vu, Son Nguyen Hoang

ASEAN Journal on Science and Technology for Development

In this paper, dense families of relation schemes are introduced. We characterize minimal keys of relation schemes in terms of dense families. Note that, the dense families of database relations were introduced by Jarvinen [6]. We prove that the set of all minimal keys of a relation scheme s= (U, F) is the transversal hypergraphs of a hypergraph D– {∅}, where Dis any s-dense family. We give a necessary and sufficient condition for an abitrary family to be s-dense family. We also present some dense families of relation schemes. Furthermore, in this paper, we also study antikeys by means of …


Photocatalytic Removal Of Tr I- And Hexa-Valent Chromium Ions From Chrome-Electropl Ating Wastewater, Kajitvichyanukul Puangrat, Changul Chulaluck Nov 2017

Photocatalytic Removal Of Tr I- And Hexa-Valent Chromium Ions From Chrome-Electropl Ating Wastewater, Kajitvichyanukul Puangrat, Changul Chulaluck

ASEAN Journal on Science and Technology for Development

A novel technique based on photocatalysis was applied to eliminate chromium ions, a toxic hazardous environmental pollutant. The photoreduction of each species of chromium (total, hexavalent, and trivalent chromiums) from chrome-electroplating wastewater was investigated using a titanium dioxide suspension under irradiation by a low-pressure mercury lamp. The initial concentration of total chromium was 300 mg/l. The applied conditions were the direct photocatalytic reduction process at pH 3.65 and the indirect photocatalytic reduction with added hole scavengers at the same solution pH. Results from both processes were comparatively discussed. Result show that chromium was not efficiently removed by direct photoreduction. In …


Emergence Of The L Phenotype In Group B Streptococci In The South Of Ireland, Katherine Hayes, Lesley Cotter, L. Barry, Fiona O'Halloran Nov 2017

Emergence Of The L Phenotype In Group B Streptococci In The South Of Ireland, Katherine Hayes, Lesley Cotter, L. Barry, Fiona O'Halloran

Department of Biological Sciences Publications

Group B Streptococcal isolates (n = 235) from the South of Ireland were characterised by serotyping, antimicrobial susceptibility and determination of the phenotypic and genotypic mechanisms of resistance. Resistance to erythromycin and clindamycin was observed in 21·3% and 20·4% of the total population, respectively. The c-MLSB phenotype was the most common phenotype detected (62%), with ermB being the predominant genetic determinant, present in 84% of resistant isolates. The rare L phenotype was observed in 2·9% (n = 7) of isolates, four of which harboured the lsaC gene responsible for clindamycin resistance. Serotypes Ia, III and II were the most common …


Optimizing Sperm Collection Procedures In Zebrafish, Madelyn B. Wasden, Rachel L. Roberts, April Delaurier Nov 2017

Optimizing Sperm Collection Procedures In Zebrafish, Madelyn B. Wasden, Rachel L. Roberts, April Delaurier

Journal of the South Carolina Academy of Science

Zebrafish are a highly-valued model organism used for developmental biology research. Zebrafish can be used for genetic manipulation and hence, many mutant and transgenic lines exist. It is impractical to maintain lines of adult zebrafish, due to resource constraints and the need to continuously produce new generations. Therefore, a practical way to preserve zebrafish lines is to freeze sperm and retrieve lines using in vitro fertilization of fresh eggs. Most existing in vitro protocols used by research labs have a wide variety of fertilization rates (ranging from 0% to >90%). Due to this variability, lines may be at risk of …


Book Review, Man In The Mangroves: The Socio Economic Situation Of Human Settlements In Mangrove Forest, Soegiarto Aprilani Nov 2017

Book Review, Man In The Mangroves: The Socio Economic Situation Of Human Settlements In Mangrove Forest, Soegiarto Aprilani

ASEAN Journal on Science and Technology for Development

Book Review, Man in the Mangroves: The Socio Economic Situation of Human Settlements in Mangrove Forest


System Enginering - Is It Relevant To Brunei, Ginige A, Knight J. A Nov 2017

System Enginering - Is It Relevant To Brunei, Ginige A, Knight J. A

ASEAN Journal on Science and Technology for Development

System Enginering - Is IT Relevant to Brunei


Pv Power System Component Characterization And System Simulation, Lasnier F, Ang T.G, Wang Y. J, Hemasuk T Nov 2017

Pv Power System Component Characterization And System Simulation, Lasnier F, Ang T.G, Wang Y. J, Hemasuk T

ASEAN Journal on Science and Technology for Development

PV Power System Component Characterization and System Simulation


Nlrp10 Enhances Cd4+ T-Cell-Mediated Ifnγ Response Via Regulation Of Dendritic Cell-Derived Il-12 Release, Maurizio Vacca, Julia Böhme, Lisa Zambetti, Hanif Javanmard Khameneh, Bhairav S. Paleja, Federica Laudisi, Adrian W. S. Ho, Kurt Neo, Keith Weng Kit Leong, Mardiana Marzuki, Bernett Lee, Michael Poidinger, Laura Santambrogio, Liana Tsenova, Francesca Zolezzi, Gennaro De Libero, Amit Singhal, Alessandra Mortellaro Nov 2017

Nlrp10 Enhances Cd4+ T-Cell-Mediated Ifnγ Response Via Regulation Of Dendritic Cell-Derived Il-12 Release, Maurizio Vacca, Julia Böhme, Lisa Zambetti, Hanif Javanmard Khameneh, Bhairav S. Paleja, Federica Laudisi, Adrian W. S. Ho, Kurt Neo, Keith Weng Kit Leong, Mardiana Marzuki, Bernett Lee, Michael Poidinger, Laura Santambrogio, Liana Tsenova, Francesca Zolezzi, Gennaro De Libero, Amit Singhal, Alessandra Mortellaro

Publications and Research

NLRP10 is a nucleotide-binding oligomerization domain-like receptor that functions as an intracellular pattern recognition receptor for microbial products. Here, we generated a Nlrp10−/− mouse to delineate the role of NLRP10 in the host immune response and found that Nlrp10−/− dendritic cells (DCs) elicited sub-optimal IFNγ production by antigenspecific CD4+ T cells compared to wild-type (WT) DCs. In response to T-cell encounter, CD40 ligation or Toll-like receptor 9 stimulation, Nlrp10−/− DCs produced low levels of IL-12, due to a substantial decrease in NF-κB activation. Defective IL-12 production was also evident in vivo and affected IFNγ production by CD4+ T cells. Upon …


Microbial Halogenation With Specific Reference To Chiloroperoxidase, Smith D.C, Bult A. T, Holt G, Christy C, Lilly M. D, Rice C Nov 2017

Microbial Halogenation With Specific Reference To Chiloroperoxidase, Smith D.C, Bult A. T, Holt G, Christy C, Lilly M. D, Rice C

ASEAN Journal on Science and Technology for Development

Microbial Halogenation With Specific Reference to Chiloroperoxidase


Biogas Plants With Plastic Film Gasholder, Tentscher W Nov 2017

Biogas Plants With Plastic Film Gasholder, Tentscher W

ASEAN Journal on Science and Technology for Development

Biogas Plants With Plastic Film Gasholder


Optical Properties And Aging Characteristics Of Blackchrme Surface On Different Textures Of Aluminium Substrates, Trakulcoo Kanchana, Niemsorn Saowanee, Pitaksenpanich Patcharee Nov 2017

Optical Properties And Aging Characteristics Of Blackchrme Surface On Different Textures Of Aluminium Substrates, Trakulcoo Kanchana, Niemsorn Saowanee, Pitaksenpanich Patcharee

ASEAN Journal on Science and Technology for Development

Optical Properties and Aging Characteristics of Blackchrme Surface on Different Textures of Aluminium Substrates


Employment Situation In Manufacturing Industry In Asean: A Few Issues, Chandra M, Satpute Chhaya Nov 2017

Employment Situation In Manufacturing Industry In Asean: A Few Issues, Chandra M, Satpute Chhaya

ASEAN Journal on Science and Technology for Development

Employment Situation in Manufacturing Industry in Asean: A Few Issues


Energy Model Of Grain Drying System, Soponronnarit Somchart Nov 2017

Energy Model Of Grain Drying System, Soponronnarit Somchart

ASEAN Journal on Science and Technology for Development

Energy Model of Grain Drying System


Introduction Of Cosmid Phu 52 Into Hup Azospirillum Sp. Bss 8 By Transconjugation And Transformation, Mamaril Juanita C, Ko Elizabeth P, Trinidad Lorele C. Nov 2017

Introduction Of Cosmid Phu 52 Into Hup Azospirillum Sp. Bss 8 By Transconjugation And Transformation, Mamaril Juanita C, Ko Elizabeth P, Trinidad Lorele C.

ASEAN Journal on Science and Technology for Development

Introduction of Cosmid pHU 52 Into HUP Azospirillum SP. BSs 8 BY Transconjugation and Transformation


An Operational System For Mapping Global Solar Radiation From Gms Satellite Data, Sorapipatana Chumnong, Exell R.H.B Nov 2017

An Operational System For Mapping Global Solar Radiation From Gms Satellite Data, Sorapipatana Chumnong, Exell R.H.B

ASEAN Journal on Science and Technology for Development

An Operational System For Mapping Global Solar Radiation From GMS Satellite Data


Accelerated Corrorion Testing: Salt Spry Test, Trakulcoo Kanchana Nov 2017

Accelerated Corrorion Testing: Salt Spry Test, Trakulcoo Kanchana

ASEAN Journal on Science and Technology for Development

Accelerated Corrorion Testing: Salt Spry Test


Crossflow Ultrafiltration For Removing Direct-15 Dye From Wastewater Of Textile Industry, Ahmad A.L., Puasa S.W., Abiding S. Nov 2017

Crossflow Ultrafiltration For Removing Direct-15 Dye From Wastewater Of Textile Industry, Ahmad A.L., Puasa S.W., Abiding S.

ASEAN Journal on Science and Technology for Development

Ultrafiltration membrane was used to treat the effluent from textile industries. Crossflow ultrafiltration using GN polymeric membrane was used to remove the dye from textile effluent. A synthetic textile effluent of Direct-15 dye was used. The study focused through the effect of feed concentration, transmembrane pressure and solution’s pH on the permeate flux and percentage of dye removal were investigated. Dye concentration had significant effects on flux values. Under the fixed pressures and pH, the flux decreased while the dye rejection increased with increasing feed concentration. Transmembrane pressure also had significant effect on flux values. Under the fixed feed concentration …


Timing Synchronization For Mc-Cdma Systems Using A Time-Multiplexed Synchronization Channel, Ky Pham Hong, Long Nguyen Duc Nov 2017

Timing Synchronization For Mc-Cdma Systems Using A Time-Multiplexed Synchronization Channel, Ky Pham Hong, Long Nguyen Duc

ASEAN Journal on Science and Technology for Development

In this paper, we present a synchronization algorithm for Multi-Carrier CDMA (MC-CDMA) systems using a time-multiplexed synchronization channel. The simulations results show that a system using proposed algorithm has much higher timing detection probability than using other algorithms, especially in exponential decay multipath fading.


Status And Potential Of Co - Generation In Thai Rice Mills, Chantramonklasri Nit, Wibulswas Prida Nov 2017

Status And Potential Of Co - Generation In Thai Rice Mills, Chantramonklasri Nit, Wibulswas Prida

ASEAN Journal on Science and Technology for Development

Status and Potential of Co - Generation in Thai Rice Mills


Effectiveness Of Selected Entomopathogenic Fungi In Packed Rice Grain At Room Temperature Against Corcyra Cephalonica Stainton, Samodra Hendrawan, Ibrahim Yusof Bin Nov 2017

Effectiveness Of Selected Entomopathogenic Fungi In Packed Rice Grain At Room Temperature Against Corcyra Cephalonica Stainton, Samodra Hendrawan, Ibrahim Yusof Bin

ASEAN Journal on Science and Technology for Development

Eight isolates of entomopathogenic fungi were evaluated as dried conidia against the rice moth, Corcyra cephalonica. In bioassays two isolates of Beauveria bassiana (BbGc and BbPs) and one isolate of Metarhizium anisopliae (MaPs) consistently gave high mortality to C. cephalonica larvae. Formulations in either kaolin, talc or tapioca flour (20 % w/w a.i.) thoroughly mixed with long grain rice in plastic cups (8 cm diameter by 5 cm) gave complete larval mortality by the 12th day of treatment. However, in general those formulated in kaolin and talc were more efficacious and faster to kill compared to those formulated in tapioca …


Study Of Y-Chromosome Str Markers In United Arab Emirates Population, Tareq Zeyad Mohammed Ahmed Nov 2017

Study Of Y-Chromosome Str Markers In United Arab Emirates Population, Tareq Zeyad Mohammed Ahmed

Theses

The recently introduced 6-dye Yfiler Plus multiplex which includes 27 Y-STR loci (DYS576, DYS389I, DYS635, DYS389II, DYS627, DYS460, DYS458, DYS19, YGATAH4, DYS448, DYS391, DYS456, DYS390, DYS438, DYS392, DYS518, DYS570, DYS437, DYS385 a/b, DYS449, DYS393, DYS439, DYS481, DYF387S1a/b and DYS533) has been used to study 343 UAE Arab male individuals using Yfiler Plus® amplification kit. This set includes seven rapidly mutating loci (RM Y-STRs). These RM Y-STRs are useful for discriminating between closely related and unrelated males.. According to measures of genetic diversity the highest diversity were observed at loci DYS385=(0.94984), DYF387S1=(0.930523) and DYS449=(0.895402). Therefore, these loci should be considered the …


Optical Resonance Of A Three-Level System In Semiconductor Quantum Dots, Hieu Nguyen Van, Ha Nguyen Bich Nov 2017

Optical Resonance Of A Three-Level System In Semiconductor Quantum Dots, Hieu Nguyen Van, Ha Nguyen Bich

ASEAN Journal on Science and Technology for Development

The optical resonance of a three-level system of the strongly correlated electrons in the twolevel semiconductor quantum dot interacting with the linearly polarized monochromatic electromagnetic radiation is studied. With the application of the Green function method the expressions of the state vectors and the energies of the stationary states of the system in the regime of the optical resonance are derived. The Rabi oscillations of the electron populations at different levels as well as the Rabi splitting of the peaks in the photon emission spectra are investigated.PACS numbers: 71.35.-y, 78.55.-m, 78.67.Hc


Effects Of Habitat Fragmentation On Genetic Diversity In Cycas Balansae (Cycadaceae), Tam Nguyen Minh, Trang Nguyen T. Phuong, Giang Vu T. Ha, Triest L. Triest Nov 2017

Effects Of Habitat Fragmentation On Genetic Diversity In Cycas Balansae (Cycadaceae), Tam Nguyen Minh, Trang Nguyen T. Phuong, Giang Vu T. Ha, Triest L. Triest

ASEAN Journal on Science and Technology for Development

Habitat fragmentation is a serious threat to species survival. In Vietnam, Cycas balansae has been considered as threatened species because of the reduction and fragmentation of its habitats and over-exploitation. We assessed genetic variability and the pattern of population structure among six populations sampled in four provinces: Hoa Binh, Ha Nam, Ninh Binh and Quang Ninh. Polyacrylamide gel electrophoresis was performed on leaf tissues from 152 individuals representing 6 populations of C. balansae. Six of twelve enzyme systems were used to estimate genetic diversity at population and species levels. Eleven loci were examined. The allozyme data showed high levels of …


A Fuzzy Logic Based Method For Analysing Test Results, Vinh Le Xuan, Quan Tran Hong Nov 2017

A Fuzzy Logic Based Method For Analysing Test Results, Vinh Le Xuan, Quan Tran Hong

ASEAN Journal on Science and Technology for Development

Network operators must perform many tasks to ensure smooth operation of the network, such as planning, monitoring, etc. Among those tasks, regular testing of network performance, network errors and troubleshooting is very important. Meaningful test results will allow the operators to evaluate network performanceof any shortcomings and to better plan for network upgrade. Due to the diverse and mainly unquantifiable nature of network testing results, there is a needs to develop a method for systematically and rigorously analysing these results.In this paper, we present STAM (System Test-result Analysis Method) which employs a bottom-up hierarchical processing approach using Fuzzy logic. STAM …


Technology Research And Development For Environmental Management - With Specific Reference To Malaysia, Yeoh B. Ghin, Idrus Ahmad Zaharudin, Ong K.S Nov 2017

Technology Research And Development For Environmental Management - With Specific Reference To Malaysia, Yeoh B. Ghin, Idrus Ahmad Zaharudin, Ong K.S

ASEAN Journal on Science and Technology for Development

Technology Research and Development for Environmental Management - With Specific Reference to Malaysia


Research And Development Of Solar Thermal Energy In Thailand, Wibulswas Prida Nov 2017

Research And Development Of Solar Thermal Energy In Thailand, Wibulswas Prida

ASEAN Journal on Science and Technology for Development

Research and Development of Solar Thermal Energy in Thailand


A Study Of Organelles Associated With Vitellogenesis In Oncomelania Hupensis Quadrasi, A Molluscan Host Of Schictosoma Japonicum, Claveria F.G, Etges F.J Nov 2017

A Study Of Organelles Associated With Vitellogenesis In Oncomelania Hupensis Quadrasi, A Molluscan Host Of Schictosoma Japonicum, Claveria F.G, Etges F.J

ASEAN Journal on Science and Technology for Development

A Study of Organelles Associated with Vitellogenesis in Oncomelania Hupensis Quadrasi, A Molluscan Host of Schictosoma Japonicum


A Low Cost Hpib Compatible Interface To A Thermochuck For Computerised C-V Measurement System, Kwok C.K, Ling C.H, Kanhere R, Ah L.K Nov 2017

A Low Cost Hpib Compatible Interface To A Thermochuck For Computerised C-V Measurement System, Kwok C.K, Ling C.H, Kanhere R, Ah L.K

ASEAN Journal on Science and Technology for Development

A Low Cost HPIB Compatible Interface to a Thermochuck for Computerised C-V Measurement System


A Study Of Compressive Strength And Density Of Aerated Concrete, Kiattikomol Kraiwood, Lim Aikachai Sae, Siripanichgorn Anek Nov 2017

A Study Of Compressive Strength And Density Of Aerated Concrete, Kiattikomol Kraiwood, Lim Aikachai Sae, Siripanichgorn Anek

ASEAN Journal on Science and Technology for Development

A Study of Compressive Strength and Density of Aerated Concrete


An Investigation Of The Effects Of Emitter Pre-Deposition Temperature In Double-Diffued Polysilicon Emitter Bipolar Transistors, Chor E.F, Chen C.P, Tan L.S Nov 2017

An Investigation Of The Effects Of Emitter Pre-Deposition Temperature In Double-Diffued Polysilicon Emitter Bipolar Transistors, Chor E.F, Chen C.P, Tan L.S

ASEAN Journal on Science and Technology for Development

An Investigation of the Effects of Emitter Pre-Deposition Temperature in Double-Diffued Polysilicon Emitter Bipolar Transistors