Javanbakht M.,Amirkabir University of Technology |
Attaran A.M.,Payamenoor University |
Namjumanesh M.H.,Amirkabir University of Technology |
Esfandyari-Manesh M.,Amirkabir University of Technology |
Akbari-adergani B.,Food and Drug Laboratory Research Center
Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences | Year: 2010
In this study, a novel method is described for the determination of tramadol in biological fluids using molecularly imprinted solid-phase extraction (MISPE) as the sample clean-up technique combined with high-performance liquid chromatography (HPLC). The water-compatible molecularly imprinted polymers (MIPs) were prepared using methacrylic acid as functional monomer, ethylene glycol dimethacrylate as cross-linker, chloroform as porogen and tramadol as template molecule. The novel imprinted polymer was used as a solid-phase extraction (SPE) sorbent for the extraction of tramadol from human plasma and urine. Various parameters affecting the extraction efficiency of the polymer have been evaluated. The optimal conditions for the MIP cartridges were studied. The MIP selectivity was evaluated by checking several substances with similar molecular structures to that of tramadol. The limit of detection (LOD) and limit of quantification (LOQ) for tramadol in urine samples were 1.2 and 3.5 μg L-1, respectively. These limits for tramadol in plasma samples were 3.0 and 8.5 μg L-1, respectively. The recoveries for plasma and urine samples were higher than 91%. © 2010 Elsevier B.V. All rights reserved.
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.
Rajaei M.,Iran University of Science and Technology |
Haghjoo M.S.,Iran University of Science and Technology |
Haghjoo M.S.,PayameNoor University |
Miyaneh E.K.,Iran University of Science and Technology
PLoS ONE | Year: 2015
Maintaining privacy in network data publishing is a major challenge. This is because known characteristics of individuals can be used to extract new information about them. Recently, researchers have developed privacy methods based on k-anonymity and l-diversity to prevent re-identification or sensitive label disclosure through certain structural information. However, most of these studies have considered only structural information and have been developed for undirected networks. Furthermore, most existing approaches rely on generalization and node clustering so may entail significant information loss as all properties of all members of each group are generalized to the same value. In this paper, we introduce a framework for protecting sensitive attribute, degree (the number of connected entities), and relationships, as well as the presence of individuals in directed social network data whose nodes contain attributes. First, we define a privacy model that specifies privacy requirements for the above private information. Then, we introduce the technique of Ambiguity in Social Network data (ASN) based on anatomy, which specifies how to publish social network data. To employ ASN, individuals are partitioned into groups. Then, ASN publishes exact values of properties of individuals of each group with common group ID in several tables. The lossy join of those tables based on group ID injects uncertainty to reconstruct the original network. We also show how to measure different privacy requirements in ASN. Simulation results on real and synthetic datasets demonstrate that our framework, which protects from four types of private information disclosure, preserves data utility in tabular, topological and spectrum aspects of networks at a satisfactory level. © 2015 Rajaei et al.
Gohari A.R.,Tehran University of Medical Sciences |
Ebrahimi H.,PayameNoor University |
Saeidnia S.,Tehran University of Medical Sciences |
Foruzani M.,PayameNoor University |
And 2 more authors.
Iranian Journal of Pharmaceutical Research | Year: 2011
Salvia genus, which is generally called Maryam-Goli in the Persian language, belongs to Lamiaceae family and comprises 58 species in Iran. Four flavonoids plus a steroid compound were isolated from the ethyl acetate and methanol extracts of the aerial parts of Salvia macrosiphon Boiss, using different chromatographic methods on the silica gel and sephadex LH20. The structures of the isolated compounds were determined to be apigenin-7, 4'-dimethyl ether (1), β-sitosterol (2), salvigenin (3) apigenin-7-O-glucoside (4) and luteolin-7-O-glucoside (5) using the 1H, 13C-NMR and MS spectra in comparison with those reported in the literature. © 2011 by School of Pharmacy Shaheed Beheshti University of Medical Sciences and Health Services.
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.
Vakili K.,Payamenoor University
International Journal of Pharmacy and Technology | Year: 2016
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.
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.
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.
Es-haghi A.,Razi Vaccine and Serum Research Institute |
Hosseini S.M.,Payamenoor University |
Khoshhesab Z.M.,Payamenoor University
Analytica Chimica Acta | Year: 2012
Novel solid-phase microextraction fibers were prepared based on sol-gel technique. Commonly used fused silica substrate was replaced by titanium wire which provided high strength and longer fiber life cycle. Titanium isopropoxide was employed as the precursor which provides a sol solution containing Ti-OH groups and shows more tendencies to the molecularly similar group on the substrate. Three different polymers, poly (dimethylsiloxane) (PDMS), poly(ethylenepropyleneglycol)-monobutyl ether (Ucon) and polyethylene glycol (PEG) were employed as coating polymer in preparing three different fibers. The applicability of these fibers was assessed for the headspace SPME (HS-SPME) of benzene, toluene, ethylbenzene and xylenes (BTEX) from water sample followed by gas chromatography-mass spectrometry (GC-MS). Effects of different parameters such as fiber coating type, extraction condition, desorption condition were investigated and optimized. Under the optimized conditions, LODs and LOQs of 0.75-10μgL-1 (S/N=3) and 1-20μgL-1 (S/N=10) were respectively obtained. The method showed linearity in the range of 10-25,000μgL-1 with correlation coefficient of >0.99. The relative standard deviation was less than 8%. © 2012 Elsevier B.V.
Raeesi R.,Payamenoor University
Advances in Environmental Biology | Year: 2014
Since Iranian and Egyptian private international law has been much under the influence of Islamic law and French legal system, the rule governing inheritance is the rule of the government obeyed by the deceased. However, in English private international law, there are two rules of conflict resolution with regard to inheritance; one for movable property and one for immovable property. Accordingly, the law governing the inheritance of immovable property is the law of the place of residence of the deceased while the inheritance of the immovable property is dependent on the place of the property. As inheritance and issues related to it are a delicate blend of law and religion, legislators are needed to take into account seriously the central role of the religion of individuals when legislating substantive rules, rules of conflict resolution governing inheritance. Accordingly, they are supposed to pass the related rules with reference to this issue, which have been disregarded in British Law and to some extent in Iranian and Egyptian Law concerning the rules pertaining to inheritance. © 2014 AENSI Publisher All rights reserved.