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91 articles for “Standard Deviation (SD)”
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Research ArticleOpen accessIn the abstractQuality of Health Services Provided to Iraqis at Jordan Red Crescent Health CentersTaghrid S. SuifanProblem statement: Quality of services measurement has been the concern of many scholars who have tried to develop scales for it. The most popular scale used was SERVQUAL. Hence the aim of this study is to discover the quality of health services provided to Iraqis at Jordan Red Crescent Health Centers in Amman. Approach: A sample study was derived from … …Journal of Social Sciences, Vol. 6, Issue 2 · 30 Jun 2010 · 7,592 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Learning Environmental Education on Science Process Skills and Critical Thinking of Mathayomsuksa 3 Students with Different Learning AchievementsPhramaha Charoen Buntod, Paitun Suksringam, Adisak SingseevoProblem statement: The object of this research aimed to investigate and compare effects of learning environmental education by wises of two approaches: The 5 E-Learning cycle with met cognitive techniques and the teacher's handbooks, on learning achievement, basic science process skills and critical thinking of 75 Mathayomsuksa 3 (grade 9) students with different learning achievements. Approach: They were assigned to … …Journal of Social Sciences, Vol. 6, Issue 1 · 31 Mar 2010 · 9,047 accessesView PDFCite
Research ArticleOpen accessIn the abstractVoltammetric Detection of Mn(II) in Blood Sample at C60 and MWCNT Modified Glassy Carbon ElectrodesMuhammed Mizher Radhi, Wee Tee Tan, Mohamad Zaki B. Ab Rahman, Anuar Bin KassimProblem statement: Glassy carbon electrode GCE was modified with different microparticles to increase the efficiency of analysis Mn2+ in blood samples by cyclic voltammetry and applied for the detection of trace Mn(II) by oxidation process. Approach: The structure and composition of the modified GCE processed by using Carbon Nanotubes CNT and C60 to produce two modified electrodes CNT/GCE and C60/GCE, … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,489 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Lead, Cadmium and Copper Concentrations in Bee Honey and Edible MolassesAhmed Hassan, Mahmoud A.A. Ghandour, Azza M.M. Ali, Hazim. A. MahranProblem statement: Content of Cadmium, lead and copper in 26 bee honey samples from different places of Assiut governorate (south of Egypt) and three different botanical origins (Clover, Multi-flower and Citrus) in addition to four edible molasses samples from Egypt market were evaluated by Differential Pulse Anodic Stripping Voltammetry (DPASV) in Briton-Robinson buffer solution at pH ~ 2.1, as well … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,419 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Relationship between School, Class and Co-Curriculum Absenteeism on the Academic Performance of Selected Secondary SchoolAzizi Yahaya, Jamaludin Ramli, Shahrin Hashim et al.Problem statement: The purpose of this study is to identify the relationship between causes of truant, types of truant and activities done during truant against academic achievement among the lower secondary students. Approach: The research instrument used in this study was questionnaire with Likert scale. The respondents for this study were 80 students were randomly chosen as respondents through simple … …Journal of Social Sciences, Vol. 5, Issue 4 · 31 Dec 2009 · 8,098 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of 7-E, KWL and Conventional Instruction on Analytical Thinking, Learning Achievement and Attitudes toward Chemistry LearningRungrawee Siribunnam, Sombat TayraukhamProblem statement: The purposes of this research were to compare in analytical thinking, science learning achievement and attitudes toward chemistry learning of Matthayomsuksa 5 students who learned using the 7-E learning cycle, KWL learning method and conventional approach. Approach: The sample consisted of 154 Matthayomsuksa 5 students attending in the first semester of the academic year 2008, Phayakkhaphumwitthayakhan School, Phayakkhaphumphisai … …Journal of Social Sciences, Vol. 5, Issue 4 · 31 Dec 2009 · 9,078 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Investigation of Sustainable Development in Urban Neighborhoods Using Statistical ModelsSedigheh LotfiProblem statement: Sustainable has a close relation to the quality of life in the different parts of each city. While the level of sustainability is studied in many urban areas world wide but it has been less considered in the Iranian cities. The city of Babolsar is selected to investigate the level of development by detail study of its 16 … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 6,337 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Studies of the Determination of Divalent Cadmium, Lead and Copper in the Boiling Medicinal Herbs by Stripping Voltammetry and by Atomic Absorption SpectrometryAhmed Hassan, Jamal A. MayoufCadmium, lead and copper were determined in ten Libyian boiling medicinal herbs samples by differential pulse anodic stripping voltammetry as well as by atomic absorption spectrometry. Voltammetric method was done at Hanging Mercury Dropping Electrode (HMDE) in Briton-Robinson buffer solution of pH ~2.1 at 25± 0.1°C. The sample preparation was carried out by boiling 2.0g of a finely pulverized plant … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,029 accessesView PDFCite
Research ArticleOpen accessIn the abstractTEC and Scintillation Study of Equatorial Ionosphere: A Month Campaign over Sipitang and Parit Raja Stations, MalaysiaM. Abdullah, A. F.M. Zain, Y. H. Ho, S. AbdullahProblem Statement: Ionospheric scintillations, which cause significant effects on satellite signals for communication and navigation, often takes place in equatorial region such as Malaysia. However, this disturbance are not fully understand due to few studies performed. This research reports the study and monitoring activity on Total Electron Content (TEC) and ionospheric scintillation in Malaysia using GPS measurements. Approach: One dual-frequency … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 9,502 accessesView PDFCite
Research ArticleOpen accessIn the abstractDNA Sequence Optimization Based on Continuous Particle Swarm Optimization for Reliable DNA Computing and DNA NanotechnologyN. K. Khalid, Z. Ibrahim, T. B. Kurniawan et al.Problem statement: In DNA based computation and DNA nanotechnology, the design of good DNA sequences has turned out to be an essential problem and one of the most practical and important research topics. Basically, the DNA sequence design problem is a multi-objective problem and it can be evaluated using four objective functions, namely, Hmeasure, similarity, continuity and hairpin. Approach: There … …Journal of Computer Science, Vol. 4, Issue 11 · 30 Nov 2008 · 7,046 accessesView PDFCite