Kesan pembelajaran koperatif terhadap pencapaian pendidikan alam sekitar dalam kalangan pelajar sekolah menengah rendah

Pembelajaran koperatif merupakan satu teknik pembelajaran yang melibatkan pelajar bekerjasama dalam satu kumpulan untuk mencapai matlamat tertentu. Dalam topik Pendidikan Alam Sekitar, pelajar didapati agak lemah dalam memahami sesuatu istilah dan tidak dapat mengaitkan topik dengan pengalaman serta persekitaran mereka. Sebelum ini, pengajaran dan pembelajaran lebih berpusatkan guru. Pembelajaran koperatif pula hanya melibatkan mata pelajaran yang menggunakan makmal atau bengkel. Kajian ini bertujuan untuk meninjau kesan pembelajaran berkumpulan terhadap pencapaian pelajar dalam Pendidikan Alam Sekitar melalui mata pelajaran Geografi. Bentuk kajian yang digunakan ialah kuasi-eksperimen yang dijalankan dengan menggunakan ujian pra dan ujian pasca ke atas kumpulan eksperimen dan kumpulan kawalan. Sampel kajian adalah dua kumpulan pelajar tingkatan 1 dari Sekolah Menengah Kebangsaan Luar Bandar di negeri Johor. Sampel kajian terdiri daripada 37 orang pelajar kumpulan eksperimen dan 35 orang pelajar kumpulan kawalan. Kumpulan eksperimen merupakan kumpulan yang menggunakan kaedah pembelajaran koperatif manakala kumpulan kawalan diajar tanpa pembelajaran koperatif. Instrumen kajian ialah ujian pencapaian, borang soal selidik, jadual pemerhatian dan temubual. Hasil kajian mendapati min pencapaian kumpulan eksperimen adalah tinggi iaitu 18.16 berbanding dengan min kumpulan kawalan, iaitu 13.91. Dapatan kajian menunjukkan terdapat peningkatan pencapaian bagi pelajar yang menjalani pembelajaran koperatif berbanding dengan pelajar yang tidak mengamalkan kaedah pembelajaran tersebut. Pelajar juga dapat menerima penggunaan pembelajaran koperatif dalam proses pengajaran dan pembelajaran. Kesimpulannya, pembelajaran koperatif bukan sahaja dapat meningkatkan hasil malah dapat meningkatkan kualiti proses pengajaran dan pembelajaran

ANALYSING THE HOLIDAY PATTERN AND TRAVEL DEMAND OF REPEAT TRAVELLERS: THE CASE OF PENANG

The purpose of this paper is to analyse the travel characteristics as well as tourism attributes that are perceived as important amid repeat travellers in Penang, paying attention on comparison between first time and repeat travellers among international tourists. A comprehensive 55-item survey was developed that solicited data in four major areas: respondents’ demographics, travel behaviour, perceived activities of importance, as well as evaluation on the level of satisfaction. The establishment of holiday pattern will lead to possible demand among the samples of study. This information is regarded as valuable resource that could be used by those in tourism planning to better determine the most preferred activities of these repeat travellers and how destination managers and developers might better attract and accommodate them. Suggestion will be made based on the findings to identify the marketing strategies, resource allocation as well as operational changes that could be effectively implemented out of both first time and repeat travellers current holiday behaviour within the study areaTravel behaviour, travel demand, repeat travellers, international tourist, Penang

Image reconstruction using iterative transpose algorithm for optical tomography

This paper describes a transpose algorithm for use with an optical tomography system. The measurement system consisted of two orthogonal arrays, each having ten parallel views, resulting in a total of twenty sensors. The measurement section is divided into hundred equi-sized pixels. The forward problem is modelled by allocating an optical attenuation coefficient to each pixel. The attenuation of incident collimated light beams is then modelled using the Lambert-Beer law. The inverse problem is defined and the transpose of the sensitivity matrix is used to obtain an estimate of the attenuation coefficients in each pixel. The iterative method is investigated as a means of improving reconstructed image qualit

Novel superhydrophobic and superoleophilic sugarcane green ceramic hollow fibre membrane as hybrid oil sorbent-separator of real oil and water mixture

The frequent oil spill accidents in nowadays has aroused great attention all over the world. Superhydrophobic and superoleophilic grafted on various substrates have attracted much attention to treat oil and water mixture because of their unique performance that can effectively separate oil and water mixture. At the same time, ceramic membrane also shows potential substrates to be used in treating oil and water mixture. However, conventional ceramic membrane that made from alumina show drawbacks in term of its high cost production. Herein, we report a new ceramic membrane that derived from agricultural-sugarcane bagasse waste and modified into superhydrophobic and superoleophilic to act as hybrid oil sorbent and separator. In this study, we successfully treat three types of real oil and water mixture from palm oil mill effluent (POME), restaurant and car wash with oil rejection and flux up to 99% and 134 L/m2h, respectively. In summary, this work demonstrates a facile, economic and effective method to fabricate superhydrophobic and superoleophilic substrates for oil and water separation

Improvement to scalar multiplication on Koblitz curves by using pseudo τ-adic non-adjacent form

Pseudo τ-adic non-adjacent form (pseudoTNAF) for elliptic scalar multiplication on Koblitz Curve was developed by Faridah et al. since 2012. This is analog to binary method and alternative to τ-adic non-adjacent form (TNAF) and reduced τ-adic non-adjacent form (RTNAF) methods that was produced by Solinas at the year 1997 and 2000 respectively. The objective of this paper is to improve the scalar multiplication algorithm with pseudoTNAF that was published earlier. Consequently, to prove that the density of the pseudoTNAF Hamming weights (HW) is less four percents than the HW of both TNAF and RTNAF

Maximum and minimum norms for τ-NAF expansion on Koblitz Curve

Background/Objectives: The scalar multiplication in Elliptic Curve Cryptosystem (ECC) is the dominant operation of computing integer multiple for an integer n and a point P on elliptic curve. In 1997, Solinas4 introduced the τ-adic non-adjacent form (τ-NAF) expansion of an element n of ring Z(τ) on Koblitz Curve. However in 2000, Solinas estimated the length of τ-NAF expansion by using maximum and minimum norms that obtained by direct evaluation method. In 2014, Yunos et al.9 introduced the formula of norm for every τ-NAF to improve this method. However, a lot of combination of norm should be considered when length of expansion is more than 15. So, the objective of this paper is to built the formulas to calculate the number of maximum and minimum norms for τ-NAF occurring among of all elements in Z(τ). Application/Improvement: With these formulas, we can estimate the length of τ-NAF expansion more accurately