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Rajaei M.,Iran University of Science and Technology | Haghjoo M.S.,Payamenoor University
2015 7th Conference on Information and Knowledge Technology, IKT 2015 | Year: 2015

The main problem in releasing sensitive data to public networks and domains is how to publish data while protecting privacy and permitting useful analysis. This problem is known as privacy-preserving data publishing. In the well-known (α,β)-privacy model, only two types of risks are considered: presence leakage (membership disclosure) by which adversaries may explicitly identify individuals in (or not in) the published dataset, and association leakage (attribute disclosure) by which they may unambiguously correlate individuals to their sensitive information. Ambiguity is an anonymization technique for this privacy model that publishes attributes of tuples in separate tables. The lossy join of these table produce false tuples which inject uncertainty. In this paper, we improve this anonymization technique (Ambiguity+) that publish the frequency of each distinct value in order to preserve better data utility based on the (α,β)-privacy model. Experimental results demonstrate that our work preserves data utility at a satisfactory level and also information loss is considerably decreased. © 2015 IEEE. Source


The purpose of this study was to analyze the content of school textbooks Karvfnavry sixth base of a creative standard by William Roman techniques. In this method, content analysis technique based on William Roman, which is used first to fifth hypotheses analyzed using the technique of William Roman one. The population of this research includes the entire content (text, images, questions and activities) is the sixth book and technological base. Meanwhile, the community is exemplary. In this research, content analysis based on William Roman techniques have been used to analyze the data. The results of this study showed that over books and VI based technology, text, images, questions and activities to foster creativity in students leads. Therefore, given that the overall involvement of the learner with the text (1.21), images (61/0), questions (05/1) and activities (44/0), between 4.0 and 5.1 book contract. Therefore, the first six books and technology base, foster creativity in text, images, questions and activity books to keep in mind is active. As a result, the contents of this book are designed and provided the basis for the development of creativity in students actively strengthen. © 2016, International Journal of Pharmacy and Technology. All rights reserved. Source


Ghehsareh H.R.,Imam Khomeini International University | Soltanalizadeh B.,Payamenoor University | Soltanalizadeh B.,Islamic Azad University at Sarab | Abbasbandy S.,Imam Khomeini International University
International Journal of Computer Mathematics | Year: 2011

Recently, various sequential numerical schemes have been proposed for the solution of non-classical hyperbolic initial value problems which involve non-local integral terms over the spatial domain. In this paper, we focus on the wave equation with the non-local boundary condition. Two matrix formulation techniques based on the shifted standard and shifted Chebyshev bases are proposed for the numerical solution. Several numerical examples and also some comparisons with another methods will be investigated to confirm the efficiency of this procedure. © 2011 Taylor & Francis. Source


Nobahar M.,Payamenoor University
Advances in Environmental Biology | Year: 2013

Background and aim: Delayed onset muscle soreness (DOMS) is often felt after strenuous orunaccustomed physical activity and gradually disappears. So far all methods proposed for quickly reducing the pains caused by DOMS have been ineffective. The purpose of the present research is to examine the effect of caffeine consumption and aerobic exercise on DOMS. Methodology: In this quasi-experimental research, 24 female volleyball players (22.5 ± 2.5 yrs.; 163 ± 0.5 cm height; 53.5 ± 0.8 kg weight) were divided into an aerobic exercise group, a caffeine group, and a control group. The caffeine group consumed 1 mg of caffeine per kg body weight at five stages (24 hours, 12 hours, and immediately before exercise, and immediately and 12 hours after exercise). The aerobic exercise group consumed placebo. The effects of these treatments of DOMS induced by an eccentric exercise consisting of jumping from a 1-m platform were examined and compared. Results: The results showed that both methods were somehow effective in reducing the pains following eccentric contractions, while aerobic exercise proved to be more effective. Discussion: By binding to adenosine receptors, caffeine can reduce fatigue and pain after muscle injury. Also low-intensity aerobic exercise accelerated the removal of pain-causing substance by increasing cardiac output, improving blood flow in muscles, and providing sufficient oxygen for the involved muscles. It is thus recommended that coaches and physiotherapists use these methods to reduce the pains caused by DOMS. © 2013 AENSI Publisher All rights reserved. Source


Nobahar M.,Payamenoor University
Advances in Environmental Biology | Year: 2014

Background: The studies were shown that creatinekinasein may be increased and its occurs following vigorous eccentric exercises and delayed onset muscle soreness. Objective: The aim of this paper was survey The Effect of Caffeine Consumption on Creatine Kinase Levels Following Eccentric Exercise. Results: The results show that, as a result of eccentric exercise, creatine kinase significantly increased only at 24 hours after exercise (68.80 percent). Also caffeine consumption and eccentric exercise has led to significant increase in CK levels only at 24 hours after exercise (37.18 percent). Conclusion: It appears that caffeine consumption increases the removal of waste and reduces DOMS. Therefore, it is recommended that trainers or physiotherapists use coffee to quickly reduce serum creatine kinase and DOMS. © 2013 AENSI Publisher All rights reserved. Source

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