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77 articles for “Panel Study”
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Research ArticleOpen accessIn the abstractE-Business Barriers in Iran's Free Trade ZonesMohammad Ali Sarlak, Asghar Abolhasani HastianiCurrently there are 24 free trade and special economic zones in Iran. Problem Statement: of these zones is lack of e-business and this is in spite of managements' desire to have proper infrastructure for e-business in these zones. The goal of this study is to determine and explain e-business barriers in free trade and special economic zones in Iran. Approach: … …Journal of Social Sciences, Vol. 4, Issue 4 · 31 Dec 2008 · 7,596 accessesView PDFCite
Research ArticleOpen accessIn the abstractSeismic Behavior of Vertical Shear Links made of Easy-Going SteelAmir Saedi Daryan, Hesam Bahrampoor, Masood Ziaei et al.Problem Statement: Since the time that steel was first used as a construction material, engineers have attempted to increase strength, reduce weight and produce more economical structures by using elegant member sections. However, the increase in steel strength and the decrease in cross section area are not always useful and in some cases it is necessary to reduce the strength … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 7,218 accessesView PDFCite
Research ArticleOpen accessIn the abstractFuzzy Based Energy Management of a Domestic Photovoltaic PanelMaher Chaabene, Mohsen Ben Ammar, Ahmed ElhajjajiThis study introduces a new switching mean giving a real time optimum connection mode of domestic apparatus on either the electrical grid or a photovoltaic panel (PVP) output. A fuzzy algorithm makes the decision which ensures the optimal energy management basing on the PVP generation and apparatus states with respect to energy save criteria. Validation was driven on a 1kW … …American Journal of Applied Sciences, Vol. 4, Issue 2 · 28 Feb 2007 · 7,009 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Serological Gastric Biopsy: A Non-endoscopical/Histopathologic Diagnostic Approach in Management of the Dyspeptic PatientsR. A.K. Mahmoud, H. H. Morcos, A. A. Hegazi et al.Objective: To asses the sensitivity, specificity and the predictive value of a 'gastropanel' blood test, including serum pepsinogen I (S-PGI) and amidated gastrin-17 (S-G-17) in the diagnosis of atrophic gastritis most probably due to helicobacter pylori (Hp) and to compare the results of serology with the endoscopic/histopathologic findings as a gold standard diagnostic tool. This study comprised 86 dyspeptic outpatients … …American Journal of Immunology, Vol. 2, Issue 4 · 31 Dec 2006 · 7,134 accessesView PDFCite
Research ArticleOpen accessIn the abstractDNA Yields and PCR Amplification Success Using Degraded Animal CorpsesJimmy Ilunga, Paul Michael, Grace Daniel et al.A recurring problem with ancient specimens from wildlife animals is that their preserved tissues contain small amounts of DNA in a degraded state. The specific objectives of the present study were: (1) To determine DNA yields from different animal tissues; (2) to compare traditional (manual) DNA extraction protocols with commercial procedures and (3) to assess the success of PCR amplification … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 1 · 12 Feb 2020 · 7,483 accessesView PDFCite
Research ArticleOpen accessIn the abstractAdministrative Feasibility of Monitoring Mechanisms Implementation for Sustainable AgricultureKarim Naderi Mahdei, Seyed Mahmoud Hosseini, Mousa Aazami, Heshmatollah SaadiProblem statement: The purpose of this study was to analyze the administrative feasibility of monitoring mechanisms implementations in Hamedan province. Recognizing, formulating and ranking appropriate mechanisms were another objective of the study. Approach: This study was a descriptive survey research and the statistical population of the study included staff and executive experts’ that involved in related to agricultural development organizations … …American Journal of Applied Sciences, Vol. 7, Issue 2 · 28 Feb 2010 · 7,679 accessesView PDFCite
Research ArticleOpen accessIn the abstractCritical Study of Several MPPT Techniques for Photovoltaic SystemsBennacer El Hassouni, A. Haddi, A.G. AmraniThis paper presents a critical study of Maximum Power Point Tracking (MPPT) techniques for photovoltaic systems. After a brief introduction of the key factors for power extraction of photovoltaic panels, a review of commonly used MPPT techniques is presented and detailed with a holistic approach. Then, a comparison of these techniques is made according to several parameters such as robustness, … …Journal of Mechatronics and Robotics, Vol. 3, Issue 1 · 20 May 2019 · 6,259 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Subset Matching Methods: Evidence from a Monte Carlo Simulation StudyLateef Amusa, Temesgen Zewotir, Delia NorthIn the absence or infeasibility of experiments, matching methods have increasingly been used in making causal claims using observational data. This paper conducts a Monte Carlo simulation study, based on a household panel survey, to compare the performance of some widely used subset matching methods. The methods include the propensity score caliper matching, Mahalanobis distance matching, and coarsened exact matching. … …American Journal of Applied Sciences, Vol. 16, Issue 3 · 11 Apr 2019 · 7,745 accessesView PDFCite
Research ArticleOpen accessIn the abstractModeling, Simulation and Optimization of Steel Sandwich Panels under Blast LoadingSayed M. Soleimani, Nader H. Ghareeb, Nourhan H. ShakerHoneycomb sandwich panels are commonly preferred in structural engineering as a design element meant to protect against blast loading, and this owes primarily to the fact that they are light in weight (due to the voids present) whilst carrying high energy absorption capacities. A widespread surge in acts of terrorism, and the resultant threat posed to structures, presents structural engineers … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 3 · 24 Aug 2018 · 7,863 accessesView PDFCite
EditorialOpen accessIn the abstractPLANT STEROLS LOWER CHOLESTEROL, BUT INCREASE RISK FOR CORONARY HEART DISEASEZoë Harcombe, Julien S. BakerAssmann, G., P. Cullen, J. Erbey, D.R. Ramey and F. Kannenberg et al., 2006. Plasma sitosterol elevations are associated with an increased incidence of coronary events in men: Results of a nested case-control analysis of the Prospective Cardiovascular Munster (PROCAM) study. Nutr Metab Cardiovasc Dis., 16: 13-21. BfR, 2011. Addition of plant sterols and stanols to food: Assessment of a … …OnLine Journal of Biological Sciences, Vol. 14, Issue 3 · 21 Aug 2014 · 89,005 accessesView PDFCite