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Research ArticleOpen accessIn the keywordsTeachers’ Perceptions toward the use of GeoGebra in the Teaching and Learning of MathematicsLo Sooth Lee, Effandi ZakariaProblem statement: In a study by TIMSS, approximately 20% of Malaysian students failed to achieve the minimum benchmarks in mathematics. In addition, students do not understand mathematical concepts and lack necessary skills in problem-solving. The purpose of this study was to examine teachers’ perceptions toward the features and tools in GeoGebra. Approach: A GeoGebra workshop was conducted involving 30 secondary … …Journal of Mathematics and Statistics, Vol. 8, Issue 2 · 16 Jun 2012 · 8,929 accessesView PDFCite
Research ArticleOpen accessIn the keywordsShape Retrieval through Angular Distance with Shortest Augmenting Path AlgorithmD. Chitra, N. Devarajan, T. ManigandanProblem statement: The shape of an object is very important in object recognition. Shape matching is a challenging problem, especially when articulation and deformation of a part occurs. These variations may be insignificant for human recognition but often cause a matching algorithm to give results that are inconsistent with our perception. Approach: We proposed a customized approach to measure similarity … …Journal of Computer Science, Vol. 7, Issue 12 · 21 Oct 2011 · 6,817 accessesView PDFCite
Research ArticleOpen accessIn the keywordsIntegrability and Prolongation Structure of a Generalized Korteweg-de Vries EquationPaul BrackenA closed differential ideal is constructed for a generalized Korteweg-de Vries equation. The ideal can be used to establish integrability for the equation. Some prolongation structures are determined for the equation and some larger prolongation algebras for given instances of the equation are found. The significance of this is that Backlund transformations can be developed based on them. It is … …Journal of Mathematics and Statistics, Vol. 6, Issue 2 · 30 Jun 2010 · 7,411 accessesView PDFCite
Research ArticleOpen accessIn the keywordsWorldviews in Isan-Thai StoriesJaruwan Thammawat, Pathom Hongsuwan, Wajuppa TossaProblem statement: This study aimed to investigate two-fold: To present worldviews in Isan-Thai Stories and to explain the connections between the worldviews and their societal contexts. Approach: Following the methodology of folklore studies, both oral and written versions of Isan-Thai stories were analyzed in order to find out their structures, contents, motifs and contexts. The 76 stories which were chosen … …Journal of Social Sciences, Vol. 5, Issue 4 · 31 Dec 2009 · 7,529 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA New Approach in Cryptographic Systems Using Fractal Image CodingNadia M.G. Al-Saidi, Muhammad Rushdan Md. SaidProblem statement: With the rapid development in the communications and information transmissions there is a growing demand for new approaches that increase the security of cryptographic systems. Approach: Therefore some emerging theories, such as fractals, can be adopted to provide a contribution toward this goal. In this study we proposed a new cryptographic system utilizing fractal theories; this approach exploited … …Journal of Mathematics and Statistics, Vol. 5, Issue 3 · 30 Sep 2009 · 7,505 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSeparable Watermarking Technique Using the Biological Color ModelDavid Nino, Moussa Abdallah, Bassam HammoProblem statement: The issue of having robust and fragile watermarking is still main focus for various researchers worldwide. Performance of a watermarking technique depends on how complex as well as how feasible to implement. These issues are tested using various kinds of attacks including geometry and transformation. Watermarking techniques in color images are more challenging than gray images in terms … …Journal of Computer Science, Vol. 5, Issue 8 · 31 Aug 2009 · 6,611 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Rigorous Proof for the Invariant Study of the Problem in Section VI in "Matched Subspace Detectors"Fangyuan Nan, Yaonan Wang, Fuhai LiProblem statement: This research provided rigorous proof for the invariant study of the problem in section VI in "matched subspace detectors". About 14 years ago an important research entitled "matched subspace detectors" was published in IEEE transactions on signal processing, Vol. 42, No. 8, August 1994. Since its publication, the study has been widely cited in many areas. The main … …Journal of Mathematics and Statistics, Vol. 5, Issue 2 · 30 Jun 2009 · 6,974 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTransgenic Indian Cotton (Gossypium hirsutum) Harboring Rice Chitinase Gene (Chi II) Confers Resistance to Two Fungal PathogensM. Ganesan, P. Bhanumathi, K. Ganesh Kumari et al.Problem statement: The present investigation described a simple and reproducible protocol for transgenic cotton regeneration and characterization of chitinase (Chi II) gene expression against two different fungal pathogens in cotton. Approach: Transgenic cotton (Gossypium hirsutum cv. SVPR2) plants were produced by pCambia-bar-Chi II (13.8 kb) under the control of the CaMV 35S promoter, harbored in the strain LBA 4404 Agrobacterium … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 2 · 30 Jun 2009 · 8,531 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEfficient Processing for Binary Submatrix MatchingAzzam Sleit, Wesam AlMobaideen, Mohammad Qatawneh, Heba SaadehThe heavy demand for large volumes of digital data has increased the interest in matrix-like representation. Matrices are well organized data structures which are suitable to store uniform data in order to simplify data access and manipulation. For several applications, the need is critical to efficiently search for a specific pattern in matrix structures. A pattern can be represented as … …American Journal of Applied Sciences, Vol. 6, Issue 1 · 31 Jan 2009 · 7,616 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMultistage Development of Müller-Achenbach model for Shape Memory AlloySimin Ataollahi Oshkovr, Nik Abdullah Nik Mohamed, Che Husna Azhari et al.This research focused on the conceptual development of constitutive Müller-Achenbach model and proceeds to construct a model based on phase transition under changing temperature and load for variants of martensite in shape memory alloy CuAlNi (Copper-aluminum-nickel). Problem statement: Motivation of this research is rare information of a variant of martensite phase (M++) and prediction of the shape recovery of shape … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 7,534 accessesView PDFCite