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2013

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Adsorption Of Parabens In Aqueous Solution Onto Β-Cyclodextrin Cross-Linked Polymer / Chin Yuk Ping, Yuk Ping Chin Jan 2013

Adsorption Of Parabens In Aqueous Solution Onto Β-Cyclodextrin Cross-Linked Polymer / Chin Yuk Ping, Yuk Ping Chin

Student Works (2010-2019)

β-cyclodextrin cross-linked polymers were prepared from hexamethylene diisocyanate (HMDI) and toluene-2,6-diisocyanate (TDI) as a cross-linker. Two types of polymers were synthesized, namely β-CD-HMDI and β-CD-TDI. The polymers were characterized and β-CD-TDI with the molar ratio of 1:7 for β-CD:TDI was chosen for further studies as it gave the highest adsorption of parabens. The adsorption mechanisms were studied with adsorption kinetic models and adsorption isotherm models. Kinetic study was done for single paraben solutions and a mixture of four parabens solution. For the kinetic study, the experimental data were analysed using pseudo-first-order, pseudo-second-order, and intraparticle diffusion kinetic models. Adsorptions follow pseudo-second-order …

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Acid Denaturation Of Aspergillus Niger Glucoamylase And Structural Transitions Induced By Various Alcohols And Polyols / Mohammed Suleiman Mohammed Zaroog, Mohammed Suleiman Mohammed Zaroog Jan 2013

Acid Denaturation Of Aspergillus Niger Glucoamylase And Structural Transitions Induced By Various Alcohols And Polyols / Mohammed Suleiman Mohammed Zaroog, Mohammed Suleiman Mohammed Zaroog

Student Works (2010-2019)

Acid denaturation of Aspergillus niger glucoamylase was studied using different conformational probes. Both far-UV CD spectral signal (MRE222nm) and tryptophan fluorescence remained unchanged in the pH range, 7.0–3.0 but decreased significantly below pH 3.0, whereas the ANS fluorescence showed a marked increase below pH 1.5. Maximal changes in the MRE222nm value and the ANS fluorescence were noticed at pH 1.0. The acid-denatured state of glucoamylase at pH 1.0 retained a significant amount of secondary structure as reflected from the far-UV CD spectra but showed a deformed tertiary structure with significant exposure of the nonpolar groups as well as the tryptophan …

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Effect Of Superovulation On Ovarian Response And Subsquent Embryo Transfer In Goats / Shariffah Binti Nazari, Shariffah Nazari Jan 2013

Effect Of Superovulation On Ovarian Response And Subsquent Embryo Transfer In Goats / Shariffah Binti Nazari, Shariffah Nazari

Student Works (2010-2019)

This study was conducted to evaluate the effects of oFSH dosages on ovarian responses during superovulation treatment. A total of 35 mature crossbred goats were synchronised for oestrus with CIDR devices for a period of 13 days. The does were divided into 3 groups, namely groups M1, M2 and S receiving 8.8 mg and 14.1 mg of oFSH through multiple intramuscular (i.m.) injection starting from 2 days before the CIDR removal and 8.8 mg of oFSH through single i.m. injection upon CIDR removal, respectively. Ovarian responses of all treatments were evaluated during laparotomy session on days 3 or 7 after …

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Overlap Pcr Strategy And Cloning Of Prostate Specific Membrane Antigen (Psma) Gene In Pichia Pastoris Yeast Recombinant Expression System / Nassrin Abduljalil Badroon, Nassrin Abduljalil Badroon Jan 2013

Overlap Pcr Strategy And Cloning Of Prostate Specific Membrane Antigen (Psma) Gene In Pichia Pastoris Yeast Recombinant Expression System / Nassrin Abduljalil Badroon, Nassrin Abduljalil Badroon

Student Works (2010-2019)

In this study, PSMA was divided into 3 fragments, G1, G2 and G3. Two-step PCR was done to constructed G1 sub-divided fragments (a, b, c, d, e, and f). G2 and G3 were amplified using specific primers and the obtained PCR products were subsequently purified and proceed for cloning. In order to clone each PSMA fragment, each PCR amplified fragment were ligated into pGEM-T vector and transformed into JM109 competent cells, which provided the complete sequences of G2 and G3; with some minimum mutations in G1.Overlapping extension PCR was conducted to combine the fragments; so the G1 fragment was amplified …

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Biological Activities Of Hibiscus Sabdariffa Linn. / Md Hoirul Azri Bin Ponari, Hoirul Azri Ponari Jan 2013

Biological Activities Of Hibiscus Sabdariffa Linn. / Md Hoirul Azri Bin Ponari, Hoirul Azri Ponari

Student Works (2010-2019)

Hibiscus sabdariffa Linn (Roselle) is a member of the Malvaceae family. The origin of H. sabdariffa is not fully known, but in Malaysia it was introduce by University of Malaya in early 1990s and commercially planted by the Department of Agriculture in Rhu Tapai, Terengganu. The present study was designed to investigate the pharmacological activities and phytochemical constituents of three different varieties of H. sabdariffa i.e. Arab, UKMR-1 and UKMR-2 variety. Pharmacological activities studied include determination of antioxidant activities in plant samples using DPPH radical scavenging assay, reducing power assay and metal chelating assay; the toxicity of plant samples in …

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Diversity Of Polyporales In The Malay Peninsular And The Application Of Ganoderma Australe (Fr.) Pat. In Biopulping Of Empty Fruit Bunches Of Elaeis Guineensis / Mohamad Hasnul Bin Bolhassan, Mohamad Hasnul Bolhassan Jan 2013

Diversity Of Polyporales In The Malay Peninsular And The Application Of Ganoderma Australe (Fr.) Pat. In Biopulping Of Empty Fruit Bunches Of Elaeis Guineensis / Mohamad Hasnul Bin Bolhassan, Mohamad Hasnul Bolhassan

Student Works (2010-2019)

Diversity and distribution of Polyporales in Malaysia was investigated by collecting basidiocarps from trunks, branches, exposed roots and soil from six states (Johore, Kedah, Kelantan, Negeri Sembilan, Pahang and Selangor) in Peninsular Malaysia and Federal Territory Kuala Lumpur. The morphological study of 99 basidiomata collected from 2006 till 2007 and 241 herbarium specimens collected from 2003 - 2005 were undertaken. Sixty species belonging to five families: Fomitopsidaceae, Ganodermataceae, Meruliaceae, Meripilaceae and Polyporaceae were recorded. Polyporaceae was the dominant family with 46 species identified. The common species encountered based on the number of basidiocarps collected were Ganoderma australe followed by Lentinus …

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Kinetics Of Protein Expression Pattern In Kesum Leaves Or Persicaria Minus / Sharida Binti Shoib, Sharida Shoib Jan 2013

Kinetics Of Protein Expression Pattern In Kesum Leaves Or Persicaria Minus / Sharida Binti Shoib, Sharida Shoib

Student Works (2010-2019)

Proteomics has been applied in various fields such as in medicine and pharmaceutical. Although proteomics has been introduced for almost a decade, the application of proteomics to protein expression in plants can still be considered as new. This present study is aimed at proteins that are involved in leaves senescence. Proteins were extracted from the leaves of the kesum plants at different age. The extracted protein samples were then subjected to separation on one-dimensional electrophoresis (1-DE) and 2-DE. Separation was performed on broad range pH (pH 3-10) gels of 7 cm and narrow range pH (pH 4-7) gels of 7 …

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Copper Removal By Cellulose Xanthogenate Derived From Imperata Cylindrica L. Leaf Powder / Zubir Bin Othman, Zubir Othman Jan 2013

Copper Removal By Cellulose Xanthogenate Derived From Imperata Cylindrica L. Leaf Powder / Zubir Bin Othman, Zubir Othman

Student Works (2010-2019)

The efficiency of cellulose xanthogenate derived from Imperata cylindrica L. leaf powder (CXIC) for removing Cu(II) from aqueous solutions has been investigated. The effects of physicochemical parameters on biosorption capacities such as biosorbent dosage, pH, initial concentration of Cu(II) and contact time were studied. The biosorption capacities of CXIC increased with the rise in pH and Cu(II) concentration but decreased with the increase in biosorbent dose. Biosorption of Cu(II) was considered fast as the time to reach equilibrium was 60 min. Two kinetic models; pseudo-first order and pseudo-second order were applied to analyse the Cu(II) biosorption process, and it was …

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An Exploratory Study On Utilization Of Organic Farming For Sustainable Agriculture At Selected Farms In Malaysia And India / Prasad A/L Vasudevon, Prasad Vasudevon Jan 2013

An Exploratory Study On Utilization Of Organic Farming For Sustainable Agriculture At Selected Farms In Malaysia And India / Prasad A/L Vasudevon, Prasad Vasudevon

Student Works (2010-2019)

Industrial agriculture has become the prominent agriculture system worldwide. In this system, farmers have become less dependent to environmental processes in shaping food production systems. They begin to adapt monoculture farming and rely on increasing quantities of agrochemicals, automated machineries, hybrid seeds and, more recently, Genetically modified crops. However, these practices have caused environmental consequences such as depletion of biodiversity, soil degradation, pollution and global warming. Furthermore concentration and vertical integration of corporate undermines farmer’s participation in the agrifood system. Farmers merely act as technology adopters and passive producers. In this system, farmers’ knowledge and innovations are impeded. In addition …

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University Of Malaya's Low Carbon Approach : Evaluation Of Clean Development Mechanism (Cdm) Potential / Okere Kelechi Justin, Okere Kelechi Justin Jan 2013

University Of Malaya's Low Carbon Approach : Evaluation Of Clean Development Mechanism (Cdm) Potential / Okere Kelechi Justin, Okere Kelechi Justin

Student Works (2010-2019)

Current human energy use and waste management practices have been associated with massive greenhouse gases emission resulting in climate change. Degradation of the already indebted environment and potential threat to sustainability due to the impacts is on the rise and has led to a unique synergy by world leaders to find antidotes. The United Nations Framework Convention on Climate Change (UNFCCC) through Kyoto Protocol in 1997 practically began championing the remedial effort mainly through one of the flexible mechanisms, Clean Development Mechanism (CDM), by which industrialized nations invest in green developments in developing nations and invariably earn carbon credits for …

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Application Of Forensic Entomology In Crime Scene Investigations In Malaysia / Kavitha Rajagopal, Kavitha Rajagopal Jan 2013

Application Of Forensic Entomology In Crime Scene Investigations In Malaysia / Kavitha Rajagopal, Kavitha Rajagopal

Student Works (2010-2019)

Forensic entomology is the application and study of insect biology to criminal matters. One of the most important aspects of forensic entomology is the usage of maggot found in dead human body to determine the post-mortem interval (PMI). Based on the number of maggot sent for PMI determination, the application of forensic entomology in crime scene investigation is still unsatisfactory in Malaysia. Hence the present study was the first to conduct a questionnaire survey to determine the degree of knowledge and awareness of forensic entomology in Malaysia. A total of 402 participants comprising of the crime scene police officers, pathologists …

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Determination Of Heavy Metals In Effluent / Wan Mohd Tarmizi Bin Wan Mohd Yusuf, Wan Mohd Tarmizi Wan Mohd Yusuf Jan 2013

Determination Of Heavy Metals In Effluent / Wan Mohd Tarmizi Bin Wan Mohd Yusuf, Wan Mohd Tarmizi Wan Mohd Yusuf

Student Works (2010-2019)

The objective of this research project is to determine the concentration of 5 toxic metals from industrial effluent.The five metal elements are cadmium (Cd), lead (Pb), copper (Cu), nickel (Ni), and iron(Fe).Two sources of effluent have been taken for the analysis of heavy metals concentration. It is very important to monitor the concentration of toxic metals effluent whether the concentrations are safe to be released to the environment or need to be treated. A serious contamination to human life and environment can occur if there is no observation on the effluent that will be released to the environment. The sample …

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Application Of Hybrid Evolutionary Algorithm And Thematic Map For Rule Set Generation And Visualization Of Chlorophyta Abundance At Putrajaya Lake / Lau Chia Fong, Chia Fong Lau Jan 2013

Application Of Hybrid Evolutionary Algorithm And Thematic Map For Rule Set Generation And Visualization Of Chlorophyta Abundance At Putrajaya Lake / Lau Chia Fong, Chia Fong Lau

Student Works (2010-2019)

This study describes application of a hybrid combination of hybrid evolutionary algorithm (HEA) and thematic map visualization technique in modeling, predicting and visualization of selected algae division growth, Chlorophyta for tropical Putrajaya Lakes and Wetlands (Malaysia). The system was trained and tested using five years of limnological time-series data sampled from tropical Putrajaya Lake and Wetlands (Malaysia). HEA is run on the training set in order to provide insights on the relationships between input variables and the algae abundance. Performances of the rule sets are assessed using Receiving Operating Characteristic (ROC) with true positive rate. The generated rules are tested …

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Proteomic Analysis On Host Responses To Chikungunya Virus Infection / Christina Thio Li Ping, Christina Li Ping Thio Jan 2013

Proteomic Analysis On Host Responses To Chikungunya Virus Infection / Christina Thio Li Ping, Christina Li Ping Thio

Student Works (2010-2019)

Chikungunya virus (CHIKV) is an arthropod-borne virus that has caused multiple unprecedented outbreaks in both tropical and temperate countries over the past five decades. There is no commercial vaccine or antiviral drug to date, due in part to the lack of knowledge and understanding of the biology and pathogenesis of this virus. Thus, there is an increasing need for researchers to focus their research efforts in this area of virology. The current study employed proteomics to investigate alterations of the whole cell proteome and secretome of WRL-68 cells during early CHIKV infection, with the main aim being to identify the …

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Chemically Modified Carbon Nanotubes (Cnts) For Adsorption Of Mercury / Nuruzatulifah Bt Asari @ Mansor, Nuruzatulifah Asari @ Mansor Jan 2013

Chemically Modified Carbon Nanotubes (Cnts) For Adsorption Of Mercury / Nuruzatulifah Bt Asari @ Mansor, Nuruzatulifah Asari @ Mansor

Student Works (2010-2019)

Functionalized multiwalled carbon nanotubes (MWCNTs) for the removal of mercury ion from aqueous solution were studied. This project had two parts, first part was the functionalization of MWCNTs using different method. Second, the performance study of the removal mercury ion using functionalized MWCNTs. Functionalization of MWCNTs was carried out using two separate methods. The first method was a gas phase treatment in a Universal Temperature Program (UTP) reactor by flowing H2SO4/SO3 vapour onto the MWCNTs. The second method was a liquid phase treatment which includes refluxing the MWCNTs in H2SO4. All samples were heated at different temperatures (100, 200, 300 …

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Selection, Characterization And Evaluation Of Streptomyces For The Control Of Anthracnose In Chilli / Pedram Shahbazi, Pedram Shahbazi Jan 2013

Selection, Characterization And Evaluation Of Streptomyces For The Control Of Anthracnose In Chilli / Pedram Shahbazi, Pedram Shahbazi

Student Works (2010-2019)

The actinomycetes, mainly Streptomyces spp., have been widely studied as potential biocontrol agents against plant pathogenic fungi. This project was undertaken to isolate and select Streptomyces strains showing potential in vitro and in vivo antifungal activity. Isolation was done from rhizosphere-derived soil of healthy and Colletotrichum-infested chilli plants in Ulu Chechuh in Kuala Selangor and Sungai Burung in the state of Selangor, Malaysia. The selected strains were evaluated for their ability to control chilli anthracnose pathogen, Colletotrichum spp. in vitro, and the best strain among them was chosen for green house experimental trials on chilli in vivo. A total of …

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Production Of Laccase Enzyme Using Rice Husk As Substrate In Fungal Solid-State Fermentation / Teck Nam, Ang, Teck Nam Ang Jan 2013

Production Of Laccase Enzyme Using Rice Husk As Substrate In Fungal Solid-State Fermentation / Teck Nam, Ang, Teck Nam Ang

Student Works (2010-2019)

To produce laccase enzyme in large volume at affordable prices, a fungal solid-state fermentation (SSF) process that uses lignocellulosic by-product from rice milling industry – rice husk was introduced. This research aims to provide deeper insights into major aspects of fungal solid-state fermentation from the selection and pretreatment of solid substrate, selection of fungi to assessment and optimization of the process parameters. The research assesses all the mentioned aspects of solid-state fermentation for the production of laccase enzyme using the oyster mushroom Pleurotus sajor-caju. No pretreatment reagent has been reported effective for pretreating rice husk, the research thus reports on …

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Production Of Bovine Embryos In Vitro Through In Vitro Fertilisation (Ivf) And Intracytoplasmic Sperm Injection (Icsi) Techniques / Nor Fadillah Binti Awang, Nor Fadillah Awang Jan 2013

Production Of Bovine Embryos In Vitro Through In Vitro Fertilisation (Ivf) And Intracytoplasmic Sperm Injection (Icsi) Techniques / Nor Fadillah Binti Awang, Nor Fadillah Awang

Student Works (2010-2019)

The objective of this study was to develop an optimal in vitro produced embryos (IVP) protocol using two methods of insemination, namely in vitro fertilisation (IVF) and intracytoplasmic sperm injection (ICSI) protocols by using different qualities of oocytes in Malaysian cattle. The ovaries were collected from slaughtered cattle from the local abattoir. The oocyte morphology was observed and grouped into three groups: Groups A, B and C, based on cumulus cell compactness. Then the oocytes were subdivided based on the cytoplasm quality, namely homogenous and heterogenous (Experiment 1). The oocytes were matured in humidified 5% CO2 incubator at 38.5°C at …

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Ethical Implications Of Preimplantation Genetic Diagnosis (Pgd): A Qualitative Study On Three Selected Groups In Malaysia / Angelina Patrick Olesen, Angelina Patrick Olesen Jan 2013

Ethical Implications Of Preimplantation Genetic Diagnosis (Pgd): A Qualitative Study On Three Selected Groups In Malaysia / Angelina Patrick Olesen, Angelina Patrick Olesen

Student Works (2010-2019)

Pre-implantation genetic diagnosis or PGD refers to procedure performed on embryos prior to implantation in IVF trials. The technology enables the embryo to be screened for genetic disease and is usually applied when parents have risk of genetic diseases. Ethical issues raised from the utilization of PGD include gender biasness and discrimination towards people with disabilities often linked to societal obsession with perfectionism. This study explores participant perception of ethical issues posed by PGD, by focusing on four key themes: sanctity of life, play God, perfectionism and freedom of choice. Three focus groups were selected; medical personnel, religious representatives and …

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Synthesis Of Functionalized Graphene/Copper Oxide (Cuo) Nanocomposites And Their Catalytic Activity / Norazriena Binti Yusoff, Norazriena Yusoff Jan 2013

Synthesis Of Functionalized Graphene/Copper Oxide (Cuo) Nanocomposites And Their Catalytic Activity / Norazriena Binti Yusoff, Norazriena Yusoff

Student Works (2010-2019)

Graphene sheets incorporated with inorganic metal oxides are emerging as a new class of exciting materials. Nanostructured CuO-based materials have been widely investigated because they are inexpensive, non-toxic, and have unique features such as narrow band gap and high solar absorbency. The focus of this research is to fabricate and characterize copper oxide (CuO) nanostructures, functionalized graphene oxide (FGO) and functionalized graphene/copper oxide (FG/CuO) nanocomposite as well as a study of their catalytic activity. Such a study is important in order to predict the suitability of the FG/CuO nanocomposite as a catalyst for the treatment of wastewater contained dyes. Firstly, …

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Creative Adoption Of Ms Excel In Teaching And Learning Of Chemistry In Malaysia / Lee Sui Chin, Sui Chin Lee Jan 2013

Creative Adoption Of Ms Excel In Teaching And Learning Of Chemistry In Malaysia / Lee Sui Chin, Sui Chin Lee

Student Works (2010-2019)

This study concerns the creative use of MS Excel in teaching and learning chemistry in Malaysian secondary schools and universities. It is used to explain, explore and understand chemical concepts. Topics such as chemical kinetics, gas compressibility, distribution of molecular speed, period three elements, qualitative analysis, spectroscopy and chemical equilibrium were chosen from Form Six and first/second year university syllabus as examples. For the “qualitative analysis” workbook, a set of videos showing the reactions described are also provided to give the ‘intuitive feel’ of the experiments described in the worksheets. Simple functions in Excel such as ‘Active X’ control tool …

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Phylogenetics Of Bactrocera Fruit Flies In Malaysia With Reference To Selected Host Fruits / Joey Ee Uli, Ee Uli Joey Jan 2013

Phylogenetics Of Bactrocera Fruit Flies In Malaysia With Reference To Selected Host Fruits / Joey Ee Uli, Ee Uli Joey

Student Works (2010-2019)

Bactrocera carambolae and Bactrocera papayae fruit flies, also known as the carambola and papaya fruit fly respectively, are significant pest fruit flies in Malaysia. They are capable of causing losses in the agricultural industry by infesting host fruits and making them unable to be sold. These two species are grouped in the Bactrocera dorsalis species complex, and are oftentimes difficult to distinguish from one another due to similar and intermediate morphological characteristics. A precise method for identifying pest fruit flies is important to properly monitor the infestation of host fruits, for the purpose of quarantine management. The aims of this …

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Nationwide Distribution And Insecticide Resistance Study Of Malaysian Mosquito Culex Quinquefasciatus Say By Molecular And Biochemical Tools / Low Van Lun, Van Lun Low Jan 2013

Nationwide Distribution And Insecticide Resistance Study Of Malaysian Mosquito Culex Quinquefasciatus Say By Molecular And Biochemical Tools / Low Van Lun, Van Lun Low

Student Works (2010-2019)

A nationwide investigation was carried out to (1) determine the distribution of Culex quinquefasciatus and other species of mosquitoes in stagnant water in residential areas, (2) investigate the genetic diversity of Cx. quinquefasciatus, (3) quantify the insecticide susceptibility status of Cx. quinquefasciatus, (4) characterize the biochemical mechanisms of insecticide resistance in Cx. quinquefasciatus, (5) characterize the molecular mechanisms of insecticide resistance in Cx. quinquefasciatus from 13 states and one federal territory in Malaysia. Culex larval surveillance indicated that Cx. quinquefasciatus was the predominant species in residential areas. Several habitat characteristics (i.e., pH, conductivity, salinity, total dissolved solids, elevation and dissolved …

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Some Outlier Problems In A Circular Regression Model / Safwati Binti Ibrahim, Safwati Ibrahim Jan 2013

Some Outlier Problems In A Circular Regression Model / Safwati Binti Ibrahim, Safwati Ibrahim

Student Works (2010-2019)

This study looks at three problems related to the JS circular regression model with five objectives in mind. The first two objectives are concerned with the problem of outliers in the model. The first is the investigation of the robustness of the JS circular regression estimation method in the presence of outliers in the data set. The second is the use of three numerical tests based on row deletion approach to detect possible outliers in the JS circular regression model. The first test considered is a modified version of the COVRATIO statistic by utilizing the covariance matrix of residuals of …

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Isolation, Purification And Antimicrobial Action Of Peptides Produced By Streptococcus Salivarius Isolated From Malaysian Subjects / Abdelahhad Barbour, Abdelahhad Barbour Jan 2013

Isolation, Purification And Antimicrobial Action Of Peptides Produced By Streptococcus Salivarius Isolated From Malaysian Subjects / Abdelahhad Barbour, Abdelahhad Barbour

Student Works (2010-2019)

Streptococcus salivarius is known to produce different bacteriocin-like inhibitory substances (BLIS). In this study six S. salivarius strains were isolated from different Malaysian subjects. The isolates were identified using morphological and biochemical characterization and 16S rDNA gene sequencing. Levansucrase enzyme was characterized from sucrose-enriched culture of strain S. salivarius YU10. BLIS production was investigated using simultaneous and deferred antagonism tests that showed YU10 and NU10 as the best BLIS-producing strains among the Malaysian isolates in this study. Strain HJEFF was the only S. salivarius isolate which produced a more limited quantity of BLIS in liquid medium. However, all other strains …

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Quorum Sensing And Quorum Quenching Abilities Of Selected Bacteria Isolated From Antarctic / See-Too Wah Seng, Wah Seng See-Too Jan 2013

Quorum Sensing And Quorum Quenching Abilities Of Selected Bacteria Isolated From Antarctic / See-Too Wah Seng, Wah Seng See-Too

Student Works (2010-2019)

Quorum sensing (QS) is a phenomenon which refers to bacterial cell-to-cell communication in a population manner. QS regulates diverse activities in bacteria. Bacteria that possess QS activity communicate through secreted signal molecules or autoinducer. The Gram-negative bacteria and archaeon use acyl homoserine lactones (AHLs) as a QS signal to achieve regulation through the luxI-luxR homolog system, wheareas Gram-positive bacteria use small peptides as autoinducers. Some of the Proteobacteria use quinolone compound as signaling molecules. Quorum quenching (QQ) on the other hand refers to interference of QS that inactivates the signaling molecules. Even though QS and QQ were extensively studied in …

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The Use Of On-Line Analytical Processing Approach In Developing Host-Parasite Database System / Nur Imtiazah Bt. Shuhaimi, Shuhaimi Nur Imtiazah Jan 2013

The Use Of On-Line Analytical Processing Approach In Developing Host-Parasite Database System / Nur Imtiazah Bt. Shuhaimi, Shuhaimi Nur Imtiazah

Student Works (2010-2019)

Biodiversity is a very broad area to explore. The developments of research have resulted in increasing the number of biodiversity data in various formats. The ability of a database in dealing with biodiversity data is essential for the effective management and information dissemination process. The capabilities of a database system rely on the formula or approaches used in operating the system. The development of On-Line Analytical Processing (OLAP) technology from time to time expands the use of this approach which previously was dominated by the business field. The effectiveness of structuring data into cube form technique allows data modeling and …

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Development Of Environmental Safety And Health Conceptual Model For Steel Factory / Nur Shuhada Bt. Mohamed Jaafar, Mohamed Jaafar Nur Shuhada Jan 2013

Development Of Environmental Safety And Health Conceptual Model For Steel Factory / Nur Shuhada Bt. Mohamed Jaafar, Mohamed Jaafar Nur Shuhada

Student Works (2010-2019)

Since modernization and industrialization have led to human loss and tragedies, due to industrial accidents all over the world, it is significant to look at the aspects that lead to success of environmental safety and health (ESH) situation. The safety statistics indicate high fatality and injury rates among the manufacturing employees. This paper focuses on developing an ESH Conceptual Model, based on related recommended OSHMS models in the existing of OHSAS: 18001 Standard and Guidelines. Besides, the effectiveness of OSHMS implementation was evaluated, by identifying the potential hazards and practical methods in minimizing workplace accidents. A case study has been …

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Molecular Studies Of Kappaphycus Doty And Eucheuma J. Agardh: Phylogenetics And Dna Barcode Assessment / Tan Ji, Ji Tan Jan 2013

Molecular Studies Of Kappaphycus Doty And Eucheuma J. Agardh: Phylogenetics And Dna Barcode Assessment / Tan Ji, Ji Tan

Student Works (2010-2019)

Kappaphycus and Eucheuma are the main producers of carrageenan worldwide, with stable annual production increments to cater to increasing demands. Extensively used in the food and cosmetics industries, the marketing of carrageenan generates lucrative returns to the industry and economy. The carrageenan industry is one of the key economic sectors in Malaysia, which also offers a means of livelihood to the local community. The extensive morphological variations of Kappaphycus and Eucheuma often resulted in faming of mixed populations which reduced overall carrageenan yields. Molecular taxonomy is thus applied to identify the many locally-named varieties of Kappaphycus and Eucheuma as well …

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Chemical Constituents And Bioactivity Of Mitrella Kentii (Bl.) Miq. (Annonaceae) / Ainnul Hamidah Syahadah Binti Azizan, Ainnul Hamidah Syahadah Azizan Jan 2013

Chemical Constituents And Bioactivity Of Mitrella Kentii (Bl.) Miq. (Annonaceae) / Ainnul Hamidah Syahadah Binti Azizan, Ainnul Hamidah Syahadah Azizan

Student Works (2010-2019)

The phytochemical and bioactivity studies on Mitrella kentii species from Annonaceae family have been performed. The extraction of phytochemicals from dried and ground plants were performed using conventional method extractions; Soxhlet extractor and Cold-extraction. The isolation of pure compounds from crude extracts were carried out by using various chromatographic methods such as column chromatography (CC), thin layer chromatography (TLC) and preparative thin layer chromatography (PTLC). The structural elucidations of the isolated compounds were established based on the spectroscopic techniques such as UV-Vis, IR, MS, 1D-NMR (1H-NMR and 13C-NMR), 2D-NMR (COSY, DEPT, HSQC and HMBC) and single crystal X-ray diffraction analysis. …

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