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33 record(s) found

Potential growth inhibition of freshwater algae by herbaceous plant extracts

Abstract

Algae often reduce aesthetic values and usability of freshwater as they can grow excessively and present in high biomass concentration. A biological approach to control algae growth by using plant-derived substances has received significant attention due to its minimal undesirable effects. To date, numerous herbaceous plants species are known to have antimicrobial properties. Nevertheless, their inhibitory potential against freshwater algae remains widely unexplored. This study attempted to explore algae inhibition potential using extracts from five herbaceous plants including Melastoma malabathricum, Cosmos caudatus, Pistia stratiotes, Etlingera elatior, and Cinnamomum cassia. Potential inhibitory effect of each plant extract on algae growth was determined through the percentage of algae growth reduction as compared to the control. Our results revealed that all, except Cinnamomum cassia, gave positive inhibitory effects on algae growth. The highest algae growth inhibition wasobserved .....

Article Published 2019 6771 hits Available

Communication in families of children with intellectual disability

Kamaruddin Kamarulzaman, Nordin Abu Bakar,

Article Published 2012 3786 hits Available

Pembangunan sistem pengurusan jaminan kualiti perkhidmatan rangkaian multimedia berasaskan agen mudah alih

Kamaruddin Mamat

Abstract

The purpose of this project is to develop a guaranteed quality of service management systems for multimedia network based on mobile agent. The system which is built as an e-Learning kit consists of a computer software for video streaming Lecture-on-Demand (LoD) via internet with guaranteed quality of service. A number of research methodologies and design have been employed to develop this product. A survey was conducted to increase the validity of the instrument utilized; while a system analysis was used to gather information on quality of service for multimedia network over internet. A simple computer software design based on waterfall process was used to develop the computer software system. The computer application using java technology enables the system to be interactive and allows increase in its use by publishing it in the world wide webs for public use through controlled internet. There are real-time traffic and non-realtime traffic in internet. Multimedia application over inte.....

Thesis Published 2008 2910 hits Available

Pembangunan mutan prt T dan analisis sekretom untuk meningkatkan Kestabilan Protein Heterolog dalam Aspergillus Niger

Nurhaida Kamaruddin

Abstract

Production of heterologous proteins in Aspergillus niger is often limited by the high levels of proteases produced by the fungus. To improve heterologous production, protease genes or a transcription factor controlling expression of extracellular protease-encoding genes has to be deactivated. The objective of this work are to deactivate a gene encoding transcription factor prtT, determine the production of extracellular proteases by the prtT mutant and determine the activity and stability of heterologous protein produced by the prt T mutant. The prt T gene was inactivated in A. niger PYll via gene replacement and the mutant produced was verified via polymerase chain reaction (PCR) and Southern blotting. Reverse transcriptasepolymerase chain reaction (RT-PCR) analysis showed reduced expression levels of several protease genes, pepA, pepB and pepF in An/sprt'T as compared to A. niger PYll either in induced or non-induced conditions. A qualitative extracellular proteolytic activity assays.....

Thesis Published 2015 1793 hits Available

Kajian perubahan dan status alam sekitar kawasan sekitar laluan kereta api lama dari stesen Taiping ke Port Weld, Perak, 1885-2010

Ariffin Khairi, Ibrahim Mohd Hairy, Kamaruddin Mohamad Kamal,

Abstract

Kawasan warisan kereta api lama di Perak ialah bekas laluan kereta api antara Taiping-Port Weld (Kuala Sepetang). Laluan ini pernah memainkan peranan penting dalam pembangunan ekonomi negeri Perak. Kajian ini menggunakan metodologi observasi visual. Di sebabkan kepesatan pembangunan dalam sistem pengangkutan jalan raya maka jalan kereta api ini telah ditutup dan ditinggalkan lebih 30 tahun lalu. Namun aktiviti manusia masih dijalankan di sepanjang laluan tersebut termasuk di beberapa kawasan seperti di bandar Taiping, pekan Aulong, Simpang dan Kuala Sepetang.Aktiviti ini juga telah merubah alam sekitar fizikal menjadi kawasan pertanian kelapa sawit, kawasan perniagaan, kawasan petempatan dan aktiviti perikanan. Kawasan paya bakau hanya tertumpu di kawasan Kuala Sepetang dan beberapa kawasan belukar serta kawasan tanah rendah berpaya yang terdapat antara kawasan Aulong hingga ke Kuala Sepetang. Kawasan warisan ini dihuni oleh manusia secara tetap pada masa kini. Dapatan kajian ini menun.....

Article Published 2014 3417 hits Available

Perbandingan pendidikan Cina dan pendidikan India era British di Tanah Melayu

Ariffin Khairi, Kamaruddin Mohd Kamal, Jusoh Adnan,

Abstract

Pendidikan Cina dan Pendidikan India secara beransur-ansur berkembang pada zaman kolonial British di Tanah Melayu seiring dengan berlakunya perkembangan ekonomi. Pertambahan bilangan penduduk Cina dan India di Tanah Melayu menyebabkan aspek pendidikan untuk anak masyarakat Cina dan India sebagai satu keperluan selaras dengan apa yang berlaku di negara asal mereka masing-masing. Kajian penulisan ini dilakukan dengan merujuk dan menggunakan sumber-sumber yang terdapat di jabatan Arkib Negara dan Perpustakaan Institut Pengajian Tinggi Malaysia. Dasar kolonial British terhadap pendidikan Cina dan India adalah tidak seimbang dan pihak kolonial British memberi layanan lebih baik bagi pendidikan India berbanding dengan pendidikan Cina. Pendidikan India berkembang di estet dengan pihak majikan telah diminta oleh kerajaan kolonial British menyediakan kemudahan pendidikan bagi masyarakat India yang tinggal di estet berkenaan. Pendidikan Cina pula berkembang di petempatan masyarakat Cina di banda.....

Article Published 2014 2185 hits Available

Hubungan faktor pendidikan dan persekitaran dengan aspirasi kerjaya perakaunan dalam kalangan pelajar di negeri Pahang

Rosmaizah Kamaruddin

Abstract

Kajian ini merupakan kajian tinjauan secara kuantitatif yang bertujuan untuk melihat hubungan faktor pendidikan dan persekitaran terhadap aspirasi kerjaya Perakaunan dalam kalangan pelajar di negeri Pahang. Penyelidik membuat tinjauan melalui soal selidik yang telah dilengkapkan oleh 364 orang pelajar tingkatan empat yang mengambil mata pelajaran Prinsip Perakaunan daripada sembilan buah sekolah di negeri Pahang. Statistik deskriptif yang digunakan dalam kajian ini ialah peratus dan min manakala bagi statistik inferensi ujian yang digunakan ialah ujian ANOVA, korelasi Pearson dan Regresi pelbagai. Hasil analisis mendapati tahap aspirasi kerjaya perakaunan dalam kalangan pelajar berada pada tahap sederhana. Hasil analisis juga mendapati tidak terdapat perbezaan yang signifikan di antara faktor sosio ekonomi keluarga dengan aspirasi kerjaya Perakaunan, terdapat hubungan positif yang signifikan di antara sikap, kualiti pengajaran, persekitaran rumah, rakan sebaya dan media massa dengan as.....

Thesis Published 2015 1134 hits Available

A review of critical success factors (CSFs) for executive information system (EIS) development in education domain

Kamaruddin Mahamsiatus,

Article Published 2017 1256 hits Available

Kesan modul kemahiran asas menolong terhadap pengetahuan dan kemahiran asas menolong pembimbing rakan sebaya

Mariah Kamaruddin

Abstract

Penyelidikan eksperimen kuasi ini bertujuan mengkaji kesan Modul Kemahiran Asas Menolong (KAM) terhadap pengetahuan dan kemahiran asas menolong Pembimbing Rakan Sebaya (PRS). Modul ini dibina berdasarkan Model Kemahiran Asas Menolong Tindall, manakala Model Russell digunakan sebagai model pembinaan modul KAM. Kajian ini merupakan kajian eksperimen reka bentuk ujian pra dan ujian pos kumpulan rawatan dan kumpulan kawalan secara rawak. Seramai 83 orang subjek dipilih memasuki dua jenis kelompok rawatan iaitu Kelompok Rawatan Kumpulan Kecil (KRKK), Kelompok Rawatan Kumpulan Besar (KRKB) dan satu kelompok kawalan (KW). Subjek rawatan KRKK ialah 26 orang PRS dibahagikan kepada tiga kelompok kecil (Rla=9, Rlb=9, Rlc=8), KRKB seramai 29 orang PRS dalam satu kelompok besar (R2=29) dan satu kelompok kawalan (KW=28). Subjek kelompok rawatan KRKK dan KRKB mengikuti sembilan sesi rawatan yang dijalankan secara mingguan. Data dianalisis menggunakan analisis deskriptif, ANCOVA, MANCOVA dan Post Hoc .....

Thesis Published 2017 1400 hits Available

Reduction of extracellular proteases increased activity and stability of heterologous protein in Aspergillus niger

Nurhaida Kamaruddin

Abstract

The heterologous protein production in Aspergillus niger is often limited by the activity of the host extracellular proteases. To improve heterologous production, a transcription factor controlling expression of several extracellular protease-encoding genes, prtT, was deleted in A. niger PY11 and the mutant (AnprtT) characterised.Extracellular proteolytic activity of AnprtT was reduced as compared to the wild type, a result that was confirmed by RT-PCR analyses that showed reduced expression levels of several protease gene transcripts. To compare the efficiency of the mutant and parental (PY11) strains as hosts for heterologous protein production, the cutinase gene from Glomerella cingulate, under control of the glucoamylase A promoter, was integrated into each genome. The cutinase activity of PY11 and AnprtT harbouring the G. cingulata cutinase gene was increased 20- and 36-fold higher, respectively, than the untransformed parental strains, suggesting that the ability of the mutant to.....

Article Published 2017 1055 hits Limited

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