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ABSTRAK:Kajian ini bertujuan untuk mengenal pasti tahap penguasaan guru pelatih terhadap kemahiran manipulatif dalam proses pengajaran dan pembelajaran. Kajian ini juga bertujuan untuk mengenal pasti tahap penguasaan dari empat aspek iaitu pengendalian peralatan sains dengan betul dan selamat, pengendalian bahan kimia dengan betul dan selamat, teknik penggunaan peralatan dengan betul dan teknik amali. Seramai 92 orang guru pelatih kimia UTM yang dipilih secara persampelan rawak mudah dilibatkan dalam kajian ini. Instrumen yang digunakan dalam kajian ini adalah soal selidik yang diubahsuai daripada soal selidik penyelidik lepas iaitu Aina Fariza (2006). Darjah kebolehpercayaan bagi instrumen yang digunakan dalam kajian ini adalah 0.82. Hasil kajian mendapati tahap penguasaan guru pelatih terhadap kemahiran manipulatif adalah tinggi deng...
Zeolites are inorganic crystalline materials with uniform sized pores of molecular dimensions. Many researchers have proved that zeolite has good adsorption characteristics, which has potential to be use as an adsorbent in gas separation process and adsorptive gas storage. Since 1980s, zeolite properties were found that it could be tailored and modified for specific application. The modified zeolites lead to the positive development in vast applications from catalyst, adsorbent to nanoparticle technology. This research studies the adsorptive characteristics of various adsorbents such as zeolite A, X, Y, mordenite and ZSM-5 as well as mesoporous materials such as MCM-41 and SBA-15. The study was carried out using gases such as N2, CO2, and CH4. The modifications was carried out by introducing various types of substance or modi...
The liquid pineapple wastes from pineapple cannery industries contain mainly sucrose, glucose, fructose and other nutrients. Lactic acid, a normal organic acid, has long been of use in the pharmaceutical, chemical, cosmetic and food industry. Recently, lactic acid has been considered as an important raw material for production of biodegradable lactide polymer. The objective of this project is to study the feasibility of lactic acid production from liquid pineapple waste as a substrate using Lactobacillus delbrueckii. Batch fermentation of pineapple waste was studied in a 3-litre stirred fermenter (Biostat B Model). In order to know the physical and chemical properties of liquid pineapple waste, characterisation study was carried out. During the fermentation process, 0.5 ml sample was withdrawn from the fermentation broth at r...
Telur merupakan salah satu bahan makanan yang banyak mengandung protein, khususnya protein hewani. Dalam sebuah telur terkandung asam amino yang lengkap, hampir semua mineral, serta berkalori tinggi. oleh karena sifat telur tersebut, maka telur sering disebut dengan kapsul gizi, yang sangat dianjurkan untuk dikonsumsi manusia. dalam kenyataannya, telur memang menjadi bahan makanan yang digemari oleh masyarakat hingga sekarang ini. banyak tujuan dan cara orang dalam mengkonsumsi telur, salah satunya adlah dikonsumsi mentah sebagai campuran minum jamu. Tujuan penelitian ini adalah untuk mengetahui ada tidaknya kuman Salmonella dalam telur yang digunakan sabagai campuran minum jamu. Pengumpulan data dilakukan dengan analisalaboratorium terhadap telur yang diambil dari penjual-penjual jamu di kecamatan Semarang Selatan. Dari 60% sampel...
Labour are the most important cost element in a construction project. However, the labor prices are not fixed in market. There are variation of price that can be offered by the contractor and sub-contractor. The price are different based on factors such as skill, types of project, location of project, demand and supply of labour, level of life, citizen, gender and races. For that reason, this study was carrying out to identify and compare the labour price in range and average aspect according to location and tred and also the factors which are influence it. The study scope only focuses in Terengganu, Johor and Kuala Lumpur. Research methodology that has been used for this study is questionnaire forms. The respondents are contractor and sub-contractor. From the findings, Kuala Lumpur is the location which offered the highest l...
Infeksi cacing usus khususnya yang ditularkan melalui tanah masih merupakan masalah kesehatan masyarakat karena pravalensinya masih cukup tinggi. Penularan infeksi cacing ususini dapat melalui berbagai cara, salah satunya adalah melalui makanan yang telah terkontaminasi. Jenis makanan yang memukinkannya terjadinya penularan diantaranya adalah jenis sayuran misalnya kubis karena sayuran kubis sering kali dikonsumsi dalam bentuk mentah atau lalapan. Tujuan penelitian ini adalah untuk mengtahui apakah telah terjadi kontaminasi cacing usus pada sayuran kubis yang berasal dari Bandungan dan Kopeng. Jenis penelitian adalah eksploratif dengan jumlah sampel sebanyak 60, terdiri dari 30 sampel berasal dari Bandungan dan 30 sampel dari Kopeng. Setiap sampel dibagi menjadi 3 bagian yaitu bagian luar, tengah dan dalam kemudian setiap bagian dipe...
Good communication can be understood between speaker and listener, however the discourse is indirect. Indirect discourse can understood trough both verbal and non verbal language. Understanding of the discourse is binded by conversation context. It can explain expected implication by meaning field relationship or by using heuristical and hermeneutical narration.
Bayesian technique is one of the classification techniques which can be applied to a certain problem domain such as classification task. Therefore, this technique had been chosen to conduct a classification task with emails dataset where the emails are comprised of spam and non spam emails. Bayesian technique has been applied to observe whether it can produce a good result in spam emails classification or not. Beside, this project also applied Rough set as a comparison technique to classify the spam emails. The classification task is done based on the independent feature selection where only one most occurrence term for each email is chosen as an input to the Bayesian probability. Some of the measurement evaluation had been used to evaluate the classification performance. The measurements are precision, recall, sensitivity, specificity...
Various voltammetric methods including cyclic voltammetry (CV), differential pulse cathodic stripping voltammmetry (DPCSV), differential pulse anodic stripping voltammmetry (DPASV) and differential pulse voltammmetry (DPV) were used for the determination of six organoarsenic compounds, namely (phenylarsonic acid (PAA), para-arsanilic acid (p-ASA), ortho-arsanilic acid (o-ASA), 4-nitrophenylarsonic acid (4-NPAA, nitarsone), 3-nitro-4-hydroxy phenylarsonic acid (3-NHPAA, roxarsone) and para-ureidophenylarsonic acid (p-UPAA, carbarsone). Hanging mercury drop electrode (HMDE) was used as the working electrode. Dilute 0.1 M HCl and Britton Robinson (BR) buffer 0.04 M at pH = 3.0 were used as the supporting electrolyte solutions. The experimental parameters optimized are the effects of scan rate, pH, initial potential, accumulation potential...
California Bearing Ratio (CBR) is a commonly used indirect method to assess the stiffness modulus and shear strength of subgrade in pavement design works, however; civil engineers always encounter difficulties in obtaining representative CBR value for design of pavement. Over the years, many correlations had been proposed by various researchers in which the soil index properties were used to develop these correlations. A study was carried out to find the correlation between CBR values with soil index properties that best suit the type of soils in Malaysia. Analyses were carried out based on the published correlations and soil data obtained from two highway project sites. Based on the results, it is observed that the current published correlations are not suitable to be used in Malaysia. In addition, no typical range could be found base...
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