209 articles for “analysis of variance”

Research ArticleOpen accessIn the abstractImprovement Mechanisms of Management Information System (MIS) In Iran's Agricultural Extension OrganizationAli Asadi, Abdolmotalleb Rezaei, Ahmad RezvanfarThis research describes the MIS improvement mechanisms in Iran's Agricultural Extension Organization. A survey study was applied as a methodology of research work. Data were collected using a structured questionnaire that addressed to evaluating managers’ responses regarding to MIS improvement mechanisms. All mechanisms had mean score greater than 5 as perceived by managers which implied that most mechanisms are moderately … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 2 · 30 Jun 2008 · 7,865 accessesView PDF Cite

Research ArticleOpen accessIn the abstractRandom Walk Models Classifications: An Empirical Study for Malaysian Stock IndicesChin Wen CheongThis article studied the Random Walk models introduced by Campbell et al.[2] for Malaysian stock market. The analysis is implemented under the possible drastic economics structural change using an iterative structural change test. After the break-date identification, the random walk hypothesis is tested by multiple variance ratios test in two separate periods. We further examined the serial correlations of return’s … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 6,850 accessesView PDF Cite

Research ArticleOpen accessIn the abstractImproved Offline Signature Verification Scheme Using Feature Point Extraction MethodDebasish Jena, Banshidhar Majhi, Sanjay K. JenaSignature verification is a technology that can solve security problems in our networked society. A new improved offline signature verification scheme is proposed which is based on selecting 60 feature points from the geometric centre of the signature and compares them with the already trained feature points. The classification of the feature points utilizes statistical parameters like mean and variance. … …Journal of Computer Science, Vol. 4, Issue 2 · 28 Feb 2008 · 6,884 accessesView PDF Cite

Research ArticleOpen accessIn the abstractForce Prediction Model for Milling 618 Stainless Steel Using Response Surface MethodologyK. Kadirgama, K A. Abou-El-HosseinThis paper describes the development of a response model (cutting force) for milling 618 stainless steel utilizing response surface methodology. The cutting force model is developed in terms of cutting speed, feed rate, axial depth and radial depth. The cutting force contours have been generated from these model equations and are shown of different plots. The model generated show that … …American Journal of Applied Sciences, Vol. 2, Issue 8 · 31 Aug 2005 · 6,697 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSurface Roughness Prediction Model in Machining of Carbon Steel by PCD Coated Cutting ToolsYusuf Sahin, A. Riza MotorcuThe surface roughness model in the turning of AISI 1040 carbon steel was developed in terms of cutting speed, feed rate and depth of cut using response surface methodology. Machining tests were carried out using PVD-coated tools under different cutting conditions. The surface roughness equations of cutting tools when machining the carbon steels were achieved by using the experimental data. … …American Journal of Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2004 · 7,964 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAssociations of HSD17B1 Gene Expression with its DNA Methylation and Estradiol Level in Polycystic Ovary Syndrome Indonesian PatientsRina Puspita, Andon Hestiantoro et al.PCOS's origin and mechanism are still unknown. Epigenetics has been linked to PCOS in an increasing number of studies in recent years. The most extensively researched epigenetic alteration is DNA methylation. During organismal development, DNA methylation can control gene expression by altering transcription factor binding. The alterations in DNA methylation are directly associated with follicular development in PCOS. Studies show … …OnLine Journal of Biological Sciences, Vol. 24, Issue 2 · 8 Jan 2024 · 5,399 accessesView PDF Cite

Letter to the EditorOpen accessIn the abstractFeline Infectious Peritonitis and Feline Coronavirus Interest During the COVID-19 Pandemic: A Google Trends AnalysisMohammad Jokar, Vahid Rahmanian, Nader Sharifi et al.Coronaviruses infecteddifferent species of animals, such as feline, canine, swine and bovine. Inveterinary medicine, a significant fatal coronavirus disease in Felidae is FelineInfectious Peritonitis (FIP). The Internet provided many websites about smallanimals that present educational content for disease prevention, pets welfare,etc. Upper than 90% of internet users chooses Google as a search engine. In2008, Google Company launched Google Insights for … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 2 · 27 May 2021 · 6,850 accessesView PDF Cite

Research ArticleOpen accessIn the abstractFACILITATING STUDENTS’ GEOMETRIC THINKING THROUGH VAN HIELE’S PHASE-BASED LEARNING USING TANGRAMNyet Moi Siew, Chin Lu Chong, Mohamad Razali AbdullahThe aim of this study was to determine the effects of Van Hiele’s phases of learning using tangrams on 3rd grade primary school students’ levels of geometric thinking at the first (visual) and second (analysis) level. The study further investigated if high, moderate and low ability students acquire better mastery in geometric thinking at the end of tangram activities. Pre-test … …Journal of Social Sciences, Vol. 9, Issue 3 · 2 Oct 2013 · 10,455 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMorphological Variations and New Species Description of Genus Rousettus Bat from Gunung Duasudara Sanctuary, North Sulawesi, IndonesiaHanry Jefry Lengkong, Endang Arisoesilaningsih, Luchman Hakim, SudartoBats belongs to Pteropodidae Family that spreaded evenly in Indonesia. Genus Rousettus have their morphological variances among its own species based on characteristics on each species. Among them there is fruit-feeding bats of from genus Rousettus (Chiroptera: Pteropodidae) that have many variances of morphology among its own species. This study was aimed to identify the morphological variations and its sex … …OnLine Journal of Biological Sciences, Vol. 16, Issue 2 · 14 Apr 2016 · 8,141 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAnomaly Detection in Electroencephalogram Signals Using Unconstrained Minimum Average Correlation Energy FilterAini Hussain, Rosniwati Ghafar, Salina Abdul Samad, Nooritawati Md TahirProblem statement: Electroencepharogram (EEG) is an extremely complex signal with very low signal to noise ratio and these attributed to difficulty in analyzing the signal. Hence for detecting abnormal segment, a distinctive method is required to train the technologist to distinguish the anomalous in EEG data. The objective of this study was to create a framework to analyze EEG signals … …Journal of Computer Science, Vol. 5, Issue 7 · 31 Jul 2009 · 7,326 accessesView PDF Cite