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16 articles for “PSA”
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Research ArticleOpen accessEvery word in the titleEvaluating PSAU Mobile Application Based on People at the Center of Mobile Application Development (PACMAD) Usability Model: Empirical InvestigationMohammed Hameed AfifThis study investigates the extent to which the usability attributes, namely, effectiveness, efficiency; learnability and memorability, satisfaction, errors, and cognitive load of PSAU mobile application exist from students’ point of view who were enrolling at the academic year 2019-2020 in College of Business Administration (CBA) at Prince Sattam Bin Abdulaziz University. The study employs the People at the Center of … …Journal of Computer Science, Vol. 17, Issue 3 · 19 Mar 2021 · 19,759 accessesView PDFCite
Research ArticleOpen accessIn the keywordsImpact of Long-Term use of Mobile Phones on the Prostate in Human usersMadyha Hassan Mahmoud, Nadia Youssef Morcos, Khadiga Salah Ibrahim et al.The current study investigated some possible effects of long-term use of mobile phones on the oxidative-antioxidants balance and its effect on the prostate. Twenty-eight eligible volunteers frequently use mobile phones and from the same socioeconomic status were enrolled in the study. They were examined according to the effect of time every two years for a follow-up period with four years. … …OnLine Journal of Biological Sciences, Vol. 20, Issue 4 · 24 Dec 2020 · 6,437 accessesView PDFCite
InvestigationOpen accessIn the keywordsA State of PSI and PSII Photochemistry of Sunflower Yellow-Green Plastome MutantMaksim S. Makarenko, Nikolay V. Kozel, Alexander V. Usatov et al.Chlorophyll deficient mutants are appropriate model objects for a large number of investigations in the field of photosynthesis. In this study, we identified a state of Photosystem I (PSI) and Photosystem II (PSII) photochemistry and light responses of the sunflower yellow-green mutant line - en:chlorina-7, wherein mutations in chloroplast genes have been previously localized. The conducted research revealed low content … …OnLine Journal of Biological Sciences, Vol. 16, Issue 4 · 29 Dec 2016 · 7,458 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMyocardial Motion Analysis of Echocardiography Images using Optical Flow Radial Direction DistributionSlamet Riyadi, Mohd Marzuki Mustafa, Aini HussainProblem statement: Myocardial motion is important information for physicians in diagnosing cardiac abnormalities. The motion vector of myocardial can be computed using optical flow technique, which then can be further analyzed based on its magnitude and angle. In practice, physicians are not concern about the angle of vector itself, but are more interested on whether a segment is moving to … …Journal of Computer Science, Vol. 7, Issue 7 · 28 Jun 2011 · 6,635 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Decision Support Approach for the Sustainable Transfer of Energy Technologies under the Kyoto ProtocolCharikleia Karakosta, Haris Doukas, John PsarrasTheoretically, the Clean Development Mechanism (CDM) was introduced in the Kyoto Protocol at COP-3 in December 1997 and has officially been operational since the year 2000, in order to assist the technology transfer of sustainable energy technologies from developed to developing countries so as to support the sustainable development of the host countries. Under the CDM, sustainable development is considered … …American Journal of Applied Sciences, Vol. 5, Issue 12 · 31 Dec 2008 · 8,017 accessesView PDFCite
Research ArticleOpen accessIn the author namesAn Aggregation Approach for Group Multicriteria AssignmentGeorge Rigopoulos, John Psarras, Dimitrios Th. AskounisWe presented an aggregation approach for group multicriteria assignment decisions, where group members express their preferences on problem parameters in numeric format. Individual preferences are aggregated by WOWA operator following the majority concept and a group parameter set is derived that is used as input for the classification algorithm. In addition, we present a numeric example of the approach, demonstrating … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 6,548 accessesView PDFCite
Research ArticleOpen accessIn the author namesFuzzy Assignment Procedure based on Categories' BoundariesGeorge Rigopoulos, John Psarras, Dimitrios Th. AskounisWe presented a procedure for multicriteria assignment problems. Assignment to a category is based on the comparison between an action and categories’s boundaries. Boundary is represented by the least typical action that can be included in the category, and is considered as the category’s inclusion threshold. Comparison is executed considering performance on evaluation criteria and calculation of a fuzzy inclusion … …American Journal of Applied Sciences, Vol. 5, Issue 7 · 31 Jul 2008 · 7,040 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of Different Freezing Curves on the Acrosome Integrity of Male Goat Sperm CellsSofia Alexandra Fagundes Lopes, Henrique José Duarte Rosa, António Chaveiro, Fernando Moreira da SilvaThe aim of the present study was to evaluate the effect of three different freezing curves on male goat’s sperm viability and acrosome integrity. Semen was collected on three adult male goats in February (Azores, Portugal, latitude 38°39′N) using an artificial vagina and a female with induced heat. Three collection sessions were spaced of approximately 5 days. The study followed … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 1 · 19 Feb 2021 · 6,616 accessesView PDFCite
Research ArticleOpen accessIn the abstractSustainable Energy for Aerospace VesselsRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.The advances in solar technology and electric propulsion now offer the promise of new, very capable space transport systems that will allow us to effectively explore the solar system. NASA has developed many concepts of space-powered spacecraft with power levels ranging from tens to hundreds of kilowatts for robotic and asteroid-driven missions and Mars. This paper describes two electrical/chemical propulsion … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 4 · 4 Nov 2017 · 8,009 accessesView PDFCite