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2015

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Keberkesanan Komik Dalam Pembelajaran Bahasa Arab Di Sekolah Menengah / Nor Sakinah Binti Ismail Zawawi, Nor Sakinah Ismail Zawawi Jan 2015

Keberkesanan Komik Dalam Pembelajaran Bahasa Arab Di Sekolah Menengah / Nor Sakinah Binti Ismail Zawawi, Nor Sakinah Ismail Zawawi

Student Works (2010-2019)

Beberapa kajian menunjukkan pelajar Bahasa Arab masih memerlukan kaedah yang sesuai untuk menarik minat mereka dalam mempelajari Bahasa Arab (Mohd Fadzli & Mohd Sukki, 2012). Hal ini bertambah rumit apabila pelajar Bahasa Arab juga dibuktikan menghadapi masalah ingatan di mana ia boleh menyekat kebolehan kelancaran mereka untuk berbahasa (Norhayuza, 2001). Justeru, untuk mengatasi masalah ini, penulis menjalankan satu kajian yang bertujuan untuk menilai keberkesanan pembelajaran Bahasa Arab menggunakan komik untuk mengetahui adakah kaedah ini menepati keperluan pelajar dalam mempelajari Bahasa Arab. Data yang dikumpulkan menggunakan tiga intrumen kajian, iaitu soal selidik keatas pelajar, temu bual ke atas guru dan ujian …

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A Corpus-Driven Analysis Of Male And Female Weblog Users In An Esl Context / Huang Wen Jie, Wen Jie Huang Jan 2015

A Corpus-Driven Analysis Of Male And Female Weblog Users In An Esl Context / Huang Wen Jie, Wen Jie Huang

Student Works (2010-2019)

Weblogs ushered a new epoch for Malaysian ESL learners ever since its first entry to Malaysia in 1998 (Hopkins, 2010). Since then, scholars in the field of English as a Second Language (ESL) have paid considerable attention to blogging, especially those who teach writing courses (Mah and Er, 2009; Mah and Liaw, 2011; Gedera, 2012; Kaur, Ganapathy, and Sidhu, 2012; Yunus, Kiing, and Salehi, 2013; Ubaidullah, Mahadi, and Ching, 2013). However, little research has been undertaken from a sociolinguistic perspective, let alone gender-oriented to analyse adults’ weblogs. To fill the gap and promote online communication in an ESL community, the …

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Hubungan Kecergasan Fizikal, Kecerdasan Emosi Dan Kecenderungan Seksual Dalam Kalangan Remaja Perempuan Berumur 17 Tahun. / Rohana Bt Yahya, Yahya Rohana Jan 2015

Hubungan Kecergasan Fizikal, Kecerdasan Emosi Dan Kecenderungan Seksual Dalam Kalangan Remaja Perempuan Berumur 17 Tahun. / Rohana Bt Yahya, Yahya Rohana

Student Works (2010-2019)

Kecenderungan seksual dalam kalangan remaja perempuan di Malaysia merupakan isu terkini dan sentiasa menjadi perhatian umum. Terdapat banyak faktor yang menyebabkan gejala sosial berlaku. Walau bagaimanapun kurang data empirikal yang melihat isu ini dari perspektif kecergasan fizikal. Oleh itu, tujuan kajian ini adalah untuk meneroka secara mendalam hubungan antara pembolehubah kecergasan fizikal, kecerdasan emosi dan kecenderungan seksual remaja perempuan berumur 17 tahun di Malaysia. Kajian ini berbentuk kuantitatif melibatkan 120 remaja perempuan (n=120) yang dipilih secara rawak. Tiga jenis ujian iaitu ujian kecergasan fizikal, soal selidik MSCEIT dan Kecenderungan Seksual Ana diguna untuk mendapatkan data. Kajian juga mengenalpasti konstruk yang …

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Konservasi Biodiversiti Menurut Etika-Perundangan Islam: Kajian Terhadap Kawasan Perlindungan Di Malaysia / Mohd Istajib Bin Mokhtar, Mokhtar Mohd Istajib Jan 2015

Konservasi Biodiversiti Menurut Etika-Perundangan Islam: Kajian Terhadap Kawasan Perlindungan Di Malaysia / Mohd Istajib Bin Mokhtar, Mokhtar Mohd Istajib

Student Works (2010-2019)

Kajian kualitatif ini menganalisis isu-isu konservasi biodiversiti dari perspektif etikaperundangan Islam. Status quo kepupusan biodiversiti di dunia terutama di negaranegara Islam sangat membimbangkan. Sedangkan Islam telah menggariskan nilai-nilai etika dan prinsip-prinsip perundangan serta sistem kawasan perlindungan tradisional (al-hima) tetapi belum diterjemahkan dalam bentuk yang praktikal dan fleksibel dengan polisi dan amalan kontemporari. Sejajar dengan kecenderungan global yang mempromosikan kawasan perlindungan berasaskan pendekatan agama, kajian ini akan mengkaji pendekatan perundangan Islam dan membandingkannya dengan perundangan semasa. Kajian kes kolektif telah dijalankan di: 1) Jabatan PERHILITAN Semenanjung Malaysia; 2) Tabung Alam Sedunia (WWF-Malaysia) dan; 3) Pusat Kajian Sains dan Alam Sekitar di …

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Development Of Dual-Wavelength And Pulsed Fiber Lasers Based On Thulium-Doped Fibers / Salam Mahdi Azooz, Salam Mahdi Azooz Jan 2015

Development Of Dual-Wavelength And Pulsed Fiber Lasers Based On Thulium-Doped Fibers / Salam Mahdi Azooz, Salam Mahdi Azooz

Student Works (2010-2019)

A growing interest on lasers operating in the eye-safe two micron spectral region especially on dual-wavelength and pulse operations for a variety of applications motivated this PhD work. The scope of this thesis focuses on the development of new fiber lasers, which incorporates Thulium fiber as either gain medium or saturable absorber. At first, all-fiber dual-wavelength 2 μm fiber lasers are demonstrated based on three simple approaches; spatial filtering effect, inline microfiber Mach Zehnder Interferometer (MMZI) and multimode interference effect. The use of MMZI in the 2 μm laser cavity, for instance, successfully generates two simultaneous laser lines at 1952.93 …

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Economic Impacts Of Climate Change And Adaptation Policy In Malaysia / Nazneen Jabin, Nazneen Jabin Jan 2015

Economic Impacts Of Climate Change And Adaptation Policy In Malaysia / Nazneen Jabin, Nazneen Jabin

Student Works (2010-2019)

Malaysia is experiencing some unusual combination of droughts and extreme rainfall in recent years. As a consequence, crop production is likely to fall significantly in the years to come. There is hardly any strategy i.e. adaptation policy in effect to cope with this issue. The impacts and costs of adaptation measures cannot be optimally determined on a global basis as they can vary from region to region, between countries or even within a country. Moreover, due to the lack of adequate quantitative adaptive models, the economic impacts, effectiveness, and cost assessment for adaptation policies cannot be ascertained. The study of …

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Pemikiran Ulama Pesantren Terhadap Isu Gender : Kajian Di Pesantren Musthafawiyah Purba-Baru Mandailing Sumatera Utara, Indonesia / Aminuddin Lubis, Aminuddin Lubis Jan 2015

Pemikiran Ulama Pesantren Terhadap Isu Gender : Kajian Di Pesantren Musthafawiyah Purba-Baru Mandailing Sumatera Utara, Indonesia / Aminuddin Lubis, Aminuddin Lubis

Student Works (2010-2019)

Kajian ini membincangkan tentang pandangan ulama Pesantren Musthafawiyah Purba Baru terhadap isu gender. Tiga aspek utama telah dipilih iaitu pandangan ulama pesantren terhadap isu politik, pekerjaan dan pemilikan harta. Kajian ini menggabungkan antara kajian berbentuk kajian perpustakaan dan lapangan. Kajian perpustakaan bagi menjelaskan landasan teori yang berkaitan dengan aliran pemikiran dan manhaj ulama pesantren dalam isu gender. Manakala kajian lapangan melibatkan temubual dengan ulama-ulama pesantren. Bagi mendapatkan maklumat tentang sejarah pesantren pengkaji menemubual pimpinan pesantren dan menemubual sebahagian tenaga pengajar senior. Untuk merumuskan pandangan ulama pesantren dalam isu gender, pengkaji menemubual ulama-ulama pesantren seramai enam orang. Hasil kajian ini mendapati …

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Wakaf Kesihatan Di Hospital Waqaf An-Nur : Kajian Dari Perspektif Ekonomi Islam / Norizah Binti Mohamed @ Haji Daud, Norizah Mohamed @ Haji Daud Jan 2015

Wakaf Kesihatan Di Hospital Waqaf An-Nur : Kajian Dari Perspektif Ekonomi Islam / Norizah Binti Mohamed @ Haji Daud, Norizah Mohamed @ Haji Daud

Student Works (2010-2019)

Wakaf adalah satu bentuk kebajikan yang unik dalam ajaran Islam kerana ia adalah ibadah yang menggabungkan aspek kerohanian dan kehartaan. Wakaf mempunyai peranan besar dalam membantu pihak kerajaan menyediakan perkhidmatan seperti kesihatan dan pendidikan kepada masyarakat. Ini jelas dapat dilihat ketika zaman kegemilangan Islam pada suatu ketika dahulu contohnya di zaman kerajaan Uthmaniyyah. Kajian ini membincangkan tentang peranan dan sumbangan yang dimainkan oleh wakaf di Hospital Waqaf An-Nur (HWAN) dalam menyediakan perkhidmatannya kepada masyarakat setempat dari perspektif ekonomi Islam. Kesihatan adalah satu keperluan kepada semua, namun bagi golongan miskin dan berpendapatan rendah kesihatan menjadi suatu perkara yang sangat mahal. Penubuhan …

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Alam Sekitar Dalam Novel-Novel Penulis Sarawak : Analisis Kritikan Eko / Maharam Binti Mamat, Maharam Mamat Jan 2015

Alam Sekitar Dalam Novel-Novel Penulis Sarawak : Analisis Kritikan Eko / Maharam Binti Mamat, Maharam Mamat

Student Works (2010-2019)

Kajian ini menggunakan pendekatan Eko untuk menganalisis bagaimana penulis Sarawak menterjemahkan alam sekitar dalam karya berdasarkan isu-isu yang diangkat dalam novel mereka. Objektif kajian ini adalah untuk menganalisis bentuk persaingan antara spesies yang terdapat dalam novel, mengkaji punca berlaku kemerosotan mutu alam sekitar akibat pencemaran dalam karya, meneliti kesan guna tanah terhadap alam sekitar dan menganalisis gaya bahasa bagi menggambarkan unsur alam yang terdapat dalam novel Sarawak terpilih. Kajian ini menemukan bahawa novel yang dihasilkan berjaya menyelami bagaimana kemerosotan mutu alam sekitar akibat pencemaran berlaku, seterusnya mempersembahkan kesan guna tanah terhadap alam sekitar akibat pelbagai aktiviti manusia terhadap alam. Berdasarkan …

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Development Of Bovine Cartilage Extracellular Matrix As A Potential Scaffold For Chondrogenic Induction Of Human Dermal Fibroblasts / Ali Moradi, Ali Moradi Jan 2015

Development Of Bovine Cartilage Extracellular Matrix As A Potential Scaffold For Chondrogenic Induction Of Human Dermal Fibroblasts / Ali Moradi, Ali Moradi

Student Works (2010-2019)

Tissue engineering aims to find an ultimate solution for cartilage regeneration. Current strategies for cartilage repair using chondrocytes are limited by the usability of cell sources as observed in several contemporary techniques such as autologous cell implantations. Cartilage tissue engineering strategies involving scaffold fabrication are common. However, only few studies have described the use of scaffolds as a promoter for chondrogenic differentiation. Cartilage extracellular matrix derived scaffolds contain many bioactive factors that have chondrogenic potential of which if appropriately managed, may provide the key to successful cartilage repair outcomes. The present thesis describes a potential biomaterial derived from bovine articular …

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Surface Modification Of Titanium And Its Alloys In Orthopedic Applications / Tan Ai Wen, Ai Wen Tan Jan 2015

Surface Modification Of Titanium And Its Alloys In Orthopedic Applications / Tan Ai Wen, Ai Wen Tan

Student Works (2010-2019)

The clinical success of any orthopaedic implant is dependent upon the interaction between the implant surface and the respective bone tissue, termed osteo-integration. However, current orthopaedic implants are still limited in effectiveness by the lack of appropriate cell adhesion and osteo-integration due to the intervention of fibrous tissue, leading to implant dislocation, premature loosening and consequently a reduced implant lifespan. Titanium (Ti) and its alloys, which have favourable mechanical properties, superior corrosion resistance and excellent biocompatibility, have been widely investigated for use in orthopaedic implants, but yet fail to achieve exemplary clinical results due to poor osteo-integration. To address these …

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Adaptive Differential Evolution Algorithm With Fitness Based Selection Of Parameters And Mutation Strategies / Rawaa Dawoud Hassan Al-Dabbagh, Al-Dabbagh Rawaa Dawoud Hassan Jan 2015

Adaptive Differential Evolution Algorithm With Fitness Based Selection Of Parameters And Mutation Strategies / Rawaa Dawoud Hassan Al-Dabbagh, Al-Dabbagh Rawaa Dawoud Hassan

Student Works (2010-2019)

Differential evolution (DE) is a simple yet powerful evolutionary algorithm (EA). It has demonstrated good convergence, and its principles are easy to understand. DE has effectively solved various global optimization problems, including benchmark functions. These problems have shown different challenging characteristics such as non-convexity, non-linearity, and/or multi-modality which became difficult for traditional non-linear programming to deal with. The performance of DE algorithm depends heavily on the selected mutation strategy and its associated control parameters. The sensitivity of the DE algorithm to its mutation strategy and to the corresponding control parameters can significantly deteriorate its performance if the strategy is improperly …

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Same-Sex Bi-National Couples: The Benefits And Pitfalls Of Judicial Evolution And The Validity Of Marriage., Joncarlo Serna Jan 2015

Same-Sex Bi-National Couples: The Benefits And Pitfalls Of Judicial Evolution And The Validity Of Marriage., Joncarlo Serna

The Scholar: St. Mary's Law Review on Race and Social Justice

Abstract forthcoming.

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Decreasing Disproportionality Through Kinship Care., Aimee Corbin Jan 2015

Decreasing Disproportionality Through Kinship Care., Aimee Corbin

The Scholar: St. Mary's Law Review on Race and Social Justice

Expanding financial assistance to kinship placements can reduce disproportionality between racial minorities in Child Protective Services (CPS) custody. Statistics show that nationally, CPS removes a disproportionate number of minority children compared to non-minorities. CPS typically places a child in substitute care when that child is removed from their home, including kinship placement. Kinship placement is defined as the process by which children are placed in the care of relatives or close family friends. The government provides a significantly larger budget for foster care than for kinship placement. Kinship advocates, however, argue that foster placement—the placement in the care of a …

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Pecan Grove Review Volume 16, St. Mary's University Jan 2015

Pecan Grove Review Volume 16, St. Mary's University

Pecan Grove Review

Creative writings by students, faculty, and staff of the St. Mary's University community.

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The Medical Cost Pandemic:Why Limiting Access To Cost-Effective Treatments Hurts The Global Poor, Govind Persad Jan 2015

The Medical Cost Pandemic:Why Limiting Access To Cost-Effective Treatments Hurts The Global Poor, Govind Persad

Publications

Medical innovation in developed countries like the U.S. leads to an ever-changing medical standard of care. This innovation frequently also brings rising costs. While these costs strain even the sizeable health care budgets of developed countries, imposing them on developing countries would be much more burdensome. Yet a variety of commentators and legal actors, such as the World Health OrganiZation and UNAIDS, have argued that the same standards of care must be provided worldwide, and have enforced mandates to that effect. Interpretations of the human rght to health as a tight to the "highest attainable standard of health" similarly advance …

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Preparation, Characterization And Biodegradability Performance Of Poly(3-Hydroxybutyric Acid)/Polyvinyl Acetate Films / Olla H. S. Sharhan, Olla H. S. Sharhan Jan 2015

Preparation, Characterization And Biodegradability Performance Of Poly(3-Hydroxybutyric Acid)/Polyvinyl Acetate Films / Olla H. S. Sharhan, Olla H. S. Sharhan

Student Works (2010-2019)

In this work, microbial polyester, poly(3-hydroxybutyric acid) (PHB) was blended with polyvinyl acetate (PVAc) in various composition %(100/0, 95/5, 90/10, 85/15, 80/20, 75/25, 70/30, 65/35 and 0/100) and the film for each ratio was prepared by the solution casting method. The prepared films were then characterized by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) for information regarding chemical structure and surface morphology of the films. Thermal stability of the blends was investigated by thermogravimetric analysis (TGA) while the melting point and glass transition temperatures (Tg) were investigated by Differential Scanning Calorimetry (DSC) at a heating rate of …

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A Study On Solution Of Matrix Riccati Differential Equations Using Ant Colony Programming And Simulink / Mohd Zahurin Mohamed Kamali, Mohd Zahurin Mohamed Kamali Jan 2015

A Study On Solution Of Matrix Riccati Differential Equations Using Ant Colony Programming And Simulink / Mohd Zahurin Mohamed Kamali, Mohd Zahurin Mohamed Kamali

Student Works (2010-2019)

Swarm intelligence is a modern artificial intelligence discipline that is concerned with the design and optimization of multiagent systems with applications in robotics. This non-traditional approach is fundamentally different from the traditional approaches. In- stead of a sophisticated controller that governs the global behavior of the system, the swarm intelligence principle is based on many unsophisticated entities (for example such as ants, termites, bees etc.) that cooperate and interact in order to exhibit a desired behav- ior. In this thesis, we implement the modified ant colony programming (ACP) algorithm for solving the matrix Riccati differential equation (MRDE). Solving MRDE, especially …

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Effects Of Thermal And Non-Thermal Processing On Quality Attributes Of Chokanan Mango Juice (Mangifera Indica L.) / Vicknesha A/P Santhirasegaram, Vicknesha Santhirasegaram Jan 2015

Effects Of Thermal And Non-Thermal Processing On Quality Attributes Of Chokanan Mango Juice (Mangifera Indica L.) / Vicknesha A/P Santhirasegaram, Vicknesha Santhirasegaram

Student Works (2010-2019)

The increasing demand for high quality fruit juice, along with safety standards have spurred the development of non-thermal processing such as sonication and ultraviolet-c (UV-C) light treatment. In this study, freshly squeezed Chokanan mango juice was subjected to thermal treatment (at 90 °C for 30 and 60 seconds), sonication (for 15, 30 and 60 minutes at 25 °C, 40 kHz frequency) and UV-C treatment (for 15, 30 and 60 minutes at 25 °C, 254 nm). In addition, combination of sonication (for 15 and 30 minutes at 25 °C, 40 kHz frequency) and UV-C treatment (for 15 and 30 minutes at …

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Expression Profiling Of Microrna Genes Related To Salt Stress In Banana (Musa Acuminata Cv. Berangan) Roots / Lee Wan Sin, Wan Sin Lee Jan 2015

Expression Profiling Of Microrna Genes Related To Salt Stress In Banana (Musa Acuminata Cv. Berangan) Roots / Lee Wan Sin, Wan Sin Lee

Student Works (2010-2019)

agricultural practices and climate change increase soil salinity, yields are reduced as crops succumb to salinity-induced abiotic stress. Physiological responses to stress are controlled by expression of genes, which in turn are regulated by microRNAs. Since most banana cultivars are salt-sensitive, improved understanding of genetic regulation of abiotic stress responses in banana can support future crop management and improvement. Transcriptome libraries were constructed from salt-stressed and non-salt-stressed banana roots and then sequenced and annotated. Two banana root transcriptomes were assembled into 31,390 unigenes, of which 99.5% were mapped to the reference banana A-genome and 2,993 (9.5%) were found to be …

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Profiling Of Anti-Diabetic Agent From Pereskia Bleo (Kunth) / Nadzrul Aida Bt Mat Darus, Nadzrul Aida Mat Darus Jan 2015

Profiling Of Anti-Diabetic Agent From Pereskia Bleo (Kunth) / Nadzrul Aida Bt Mat Darus, Nadzrul Aida Mat Darus

Student Works (2010-2019)

Pereskia bleo (Kunth) belongs to the family of Cactaceae and locally known as jarum tujuh bilah. It has been used traditionally by native Malaysian for the treatment of diabetes. However, the lack of scientific data to validate such claim have motivates researcher to study for its anti-diabetic activities. In this study, the leaves, stems and roots of Pereskia bleo crude extracts were extracted with hexane, petroleum ether, chloroform, methanol and aqueous. The separation and detections of bioactive compounds were done using Thin Layer Chromatography (TLC) and Liquid Chromatography Mass spectrometry combined with Mass Spectrometry (LCMS/MS) methods. The TLC results showed …

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Anticancer Effects Of 1’S-1’- Acetoxychavicol Acetate And Its Potentiation When Conjugated With Human Alpha Fetoprotein Against Human Tumours In Mice / Norhafiza Binti Mohd Arshad, Norhafiza Mohd Arshad Jan 2015

Anticancer Effects Of 1’S-1’- Acetoxychavicol Acetate And Its Potentiation When Conjugated With Human Alpha Fetoprotein Against Human Tumours In Mice / Norhafiza Binti Mohd Arshad, Norhafiza Mohd Arshad

Student Works (2010-2019)

Previous in vitro and in vivo studies have reported that 1’S-1’-acetoxychavicol acetate (ACA) and its analogue, 1’S-1’-acetoxyeugenol acetate (AEA) isolated from rhizomes of the Malaysian ethno-medicinal plant Alpinia conchigera Griff (Zingiberaceae) induces apoptosis-mediated cell death in tumour cells via dysregulation of the NF-κB pathway and reduced physiological side effects on non-transformed cells. Nevertheless, there were some clinical development drawbacks such as poor solubility in vivo, depreciation of biological activity and non-specific targeting of tumour cells. In collaborative study with Institute of Engineering Immunology Russia, all the problems above were addressed using their novel drug conjugation technology involving a recombinant human …

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Waste Management By Restaurant Operators In Petaling Jaya / Nasr Eldin Abdallah Elshrif Ebrahiem, Nasr Eldin Elshrif Ebrahiem Jan 2015

Waste Management By Restaurant Operators In Petaling Jaya / Nasr Eldin Abdallah Elshrif Ebrahiem, Nasr Eldin Elshrif Ebrahiem

Student Works (2010-2019)

There are number of factors contribute to municipal waste generation growth rate globally and locally factors are represented by increasing population levels, development, rapid urbanization and the rise in community living standards. Malaysia municipal waste is growing rapidly due to influence by these factors. This makes improving waste management practice highly demanded in every sector producing this waste. Restaurants have credible share in municipal waste as one of major waste source globally and in Malaysia as well, therefore this increase the necessity of study waste management practice among restaurants. This study aims to investigate waste management practice among restaurants in …

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Development And Study Of Conducting Materials For H2o2 And Glucose Sensors / Tilagam A/P Marimuthu, Tilagam Marimuthu Jan 2015

Development And Study Of Conducting Materials For H2o2 And Glucose Sensors / Tilagam A/P Marimuthu, Tilagam Marimuthu

Student Works (2010-2019)

This thesis originated with the development and characterisation of composite materials for sensor applications. This study focused on conducting polymer-metal oxide based composites and silica-titania oxide based composites. The conducting polymer-metal oxide composites were synthesised by chemical polymerisation technique with an aqueous solution of pyrrole monomer in the presence of cobalt and nickel salts. Various analytical techniques were employed to characterise these composites such as field emission scanning electron microscope-energy dispersive x-ray (FESEM-EDX), x-ray powder diffraction (XRPD), Fourier Transform Infrared (FTIR) and thermogravimetric analysis (TGA). These composites were then fabricated into chemical sensor by drop-dry electrodeposition method on glassy carbon …

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Studies On The Growth, Structural And Electrical Properties Of Silicon-Based Heterostructure Nanowires / Qian Guanghan, Guanghan Qian Jan 2015

Studies On The Growth, Structural And Electrical Properties Of Silicon-Based Heterostructure Nanowires / Qian Guanghan, Guanghan Qian

Student Works (2010-2019)

This work reports the investigation of Ni catalyzed Si-based nanowires grown by hot-wire chemical vapor deposition at different filament temperatures on crystal Si (c-Si) and glass substrates These nanowires include NiSi, NiSi/Si core-shell and NiSi/SiC core-shell nanowires that grown by varying the filament temperature, Tf. The NiSi nanowires were grown at lowest Tf of 1150C. At Tf of 1450C, the nanowires were structured by crystalline Si and amorphous Si which Si attributed to the core and shell of the nanowires, respectively. The nanowires exhibited NiSi/SiC heterostructure core-shell nanowires with increase in Tf to 1850C. The morphological properties of these nanowires …

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Synthesis And Characterization Of Cyclodextrin Functionalized Ionic Liquid Polymer For The Extraction Of Phenols / Muggundha Raoov A/L Ramachandran, Muggundha Raoov Ramachandran Jan 2015

Synthesis And Characterization Of Cyclodextrin Functionalized Ionic Liquid Polymer For The Extraction Of Phenols / Muggundha Raoov A/L Ramachandran, Muggundha Raoov Ramachandran

Student Works (2010-2019)

β-Cyclodextrin functionalized ionic liquid polymer (βCD-BIMOTs-TDI) was first synthesized by functionalized β-cyclodextrin (CD) with 1-benzylimidazole (BIM) to form monofunctionalized CD (βCD-BIMOTs), and was further polymerized using toluene diisocyanate (TDI) as a linker to form insoluble βCD-BIMOTs-TDI. The βCDBIMOTs- TDI was characterized using various tools and the results obtained were compared with those derived from the native β-cyclodextrin polymer (βCD-TDI). The scanning electron microscope (SEM) results showed that the presence of ionic liquid (IL) increased the pore size, while the thermo gravimetric analysis (TGA) results showed that the presence of IL increased the stability of the βCD-BIMOTs-TDI. Meanwhile, Brunauer-Emmett-Teller (BET) result …

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Adsorption Studies Of Methylene Blue Using Selected Agro-Wastes As Low Cost Adsorbents / Tiong Khing Gueok, Khing Gueok Tiong Jan 2015

Adsorption Studies Of Methylene Blue Using Selected Agro-Wastes As Low Cost Adsorbents / Tiong Khing Gueok, Khing Gueok Tiong

Student Works (2010-2019)

Today, there are a lot of dyes available commercially. Effluent discharge from textile industries to neighbouring water bodies is currently causing significant health problem. Synthetic dyes used in textile industries, if not treated prior to its disposal can enter our water systems and cause pollution. The study was performed using different agro-wastes namely kenaf (FH 990), banana stem, and sugarcane bagasse to produce low cost industrial adsorbents. Adsorption method was applied in removing methylene blue (MB) dye from aqueous solution. The aims of this study are to investigate the adsorption capacity under optimal parameters and compare the cost effectiveness together …

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A Comparative Study Of Biomass And Carbon Pool Between Natural And Degraded Mangrove Forests In Peninsular Malaysia / Zhila Hemati, - Zhila Hemati Jan 2015

A Comparative Study Of Biomass And Carbon Pool Between Natural And Degraded Mangrove Forests In Peninsular Malaysia / Zhila Hemati, - Zhila Hemati

Student Works (2010-2019)

The present study involves the assessment of biomass concentration and carbon pool potentials of two major mangrove forests in Peninsular Malaysia; natural mangrove (Kuala Selangor) and degraded mangrove (Sg. Haji Dorani) forests. Various approaches adopted on the study ranged from biodiversity assessment, biomass estimation, to physico-chemical characterizations and estimation of carbon pool potentials. Components of the mangrove assessed included litter production: leaves, stem, branch, propagules and roots across three (3) seasons of Peninsular Malaysia. Shannon- Weniner index (H') was used to assess the species diversity indices while Simpson's index (Ds) and Sorenson‟s Similarity index (S) were used to estimate the …

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Extrication Of Biodiesel Feedstock From Early Stage Of Food Waste Liquefaction / Maridah Binti Mohd Amin, Maridah Mohd Amin Jan 2015

Extrication Of Biodiesel Feedstock From Early Stage Of Food Waste Liquefaction / Maridah Binti Mohd Amin, Maridah Mohd Amin

Student Works (2010-2019)

This study aims to provide alternative solution in the management of domestic waste and the possibility of using the extracted free fatty acid (FFA) in the food waste as the feedstock for the production of biodiesel. The main concern of acquiring the FFA from the food waste is the challenge which lies during its extraction due to high water content. Prior to the pre-treatment of food waste via the natural biological cycle, the selection of best FFA extraction method was performed on the fresh food waste. It was found that the use of Reflux method is more effective compared to …

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Bioactive 4-Phenylcoumarins From Mesua Elegans And Mesua Kunstleri / Chan Gomathi, Gomathi Chan Jan 2015

Bioactive 4-Phenylcoumarins From Mesua Elegans And Mesua Kunstleri / Chan Gomathi, Gomathi Chan

Student Works (2010-2019)

Phytochemical analyses on the bark of two Clusiaceae plants, Mesua elegans and Mesua kunstleri, were carried out. Twenty-four compounds were successfully isolated using several chromatographic techniques; column chromatography (CC), thin layer chromatography (TLC), preparative thin layer chromatography (PTLC), centrifugal partition chromatography (CPC) and high performance liquid chromatography (HPLC). The structures of the isolated compounds were elucidated using various spectroscopic methods; 1D-NMR (1H, 13C and DEPT), 2D-NMR (COSY, HSQC, HMBC and NOESY), UV, IR, HRESIMS and by comparison with data from the literature. A total of twenty-two compounds were isolated from M. elegans, namely mammea A/BA 28, 5,7-dihydroxy-8-(2-methylbutanoyl)-6-[(E)-3,7-dimethylocta-2,6-dienyl]-4- phenyl-2H-chromen-2-one 47, 5,7-dihydroxy-8-(3-methylbutanoyl)-6-[(E)-3,7- …

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