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Search Results: 1 - 10 of 1736 matches for " Abedi Said "
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Effect of Leishmania gerbilli Injection on Mice Immunization Against Cutaneous Leishmaniasis (CL) Caused by Leishmania major
Abedi Said,Khamesipour Ali,Izadi Shahrokh,Hejazi Hosein
Pakistan Journal of Biological Sciences , 2007,
Abstract: In the present study Leishmania gerbilli were used to immunize BALB/c mice against pathogenic strains of leishmania to determine whether injection of L. gerbilli in mice could protect them against later L. major inoculation. Eighty female BALB/c mice were divided by random in eight groups. Promastigotes of L. major and L. gerbilli were used. Mice were inoculated with three different doses of L. gerbilli (3x106, 2x107 and 5x107) via subcutaneous (SC) in the base of their tails or interpretoen (IP). Forty days after the first injection, all mice received the same doses as a booster. Two control groups received PBS (SC or IP) only. All BALB/c mice were inoculated subcutaneously with 2x106. Promastigotes of L. major in the base of their tails after 75 days of the first injection of L. gerbilli. When leishmania lesion developed (35 days after challenge), the size was measured and continued once a week for 12 weeks. Meanwhile, the liver and spleen samples of dead mice moved to culture media and examined for the parasite. Delaed Type Hypersensitivity (DTH) and immunoflurecent tests were used to determine results of immunization. Compared with the control group and the other groups that received different doses of L. gerbilli via IP, an evident decrease in lesion size was observed in group that received 2x107 promastigotes (p<0.05). By contrast, in those groups received L. gerbilli subcutaneously, no difference was observed through the different doses of inoculated parasite. Comparison of the inoculation styles showed that IP method caused smaller lesions than SC (p<0.05).
Performance and Improvement of Production Line Function Using Computer Simulation (Case Study: An Iron Foundry)  [PDF]
Alireza Abedi Saidabad, Houshang Taghizadeh
American Journal of Computational Mathematics (AJCM) , 2015, DOI: 10.4236/ajcm.2015.54038

Using the accurate methods and tools for evaluation of function in different areas is of great importance. In recent years, much more studies have been done on the nature and methodology of function evaluation in organizations and its improvement. This study aimed to evaluate and improve the function of production line through computer simulation in one of the iron foundries in Iran. For this purpose, at first data has been gathered on the basis of timing with chronometer for each one of the production line machineries and using this data, distribution functions governing the activity cycle of each one of these machineries have been determined; and then, using the required gathered data for computer simulation (taking the advantage of “ED” simulation software), a model was simulated to introduce the current situation of production line and the validity of simulated model was measured on the basis of production rate. And then, considering the criteria such as the production rate, average waiting time, machine utilization coefficient, production yield, production cost, production income and the production time production line function was evaluated. Finally, applying amendment changes on the simulated model improved model was offered.

Personality Traits and Performance: The Mediating Role of Adaptive Behavior in Call Centers  [PDF]
Said Echchakoui
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.31003

Personality traits and adaptive behavior are central issues in research on call center performance. However, the current literature offers little guidance on the relationship between personality traits and adaptive behavior and how they work together to enhance employee performance. This study investigates the mediating role of adaptive behavior between Five-Factor traits and employee performance with customers. Empirical evidence from a Canadian call center supports this proposition for three Five-Factor traits. Managerial implications are discussed.

Dealing with Model Mis-Specification in the Analysis of Morale in Old Age  [PDF]
Said Shahtahmasebi
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.21008

A major challenge for analysis of data from observational and survey studies is dealing with model mis-specification. A common reason for model mis-specification is the violation of the independence assumption. Model mis-specification is frequently due to the inclusion of variables that are correlated with the error terms (serial correlation) or due to variables omitted from the study. The application of standard regression models to such data could lead to over inflated results, i.e. erroneous results, and misleading conclusions. Longitudinally designed studies make substantial improvements and provide an additional handle to control omitted variables. However, even with longitudinal data, model mis-specification could occur because of the nature of observations, i.e. surveys often include objectively as well as subjectively measured variables. Subjective variables are respon

Anita Abedi
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536810051494
Abstract: The asymmetric unit of the title compound, [HgBr2(C8H8N2S2)], contains two crystallographically independent molecules. The HgII atoms are four-coordinated in a distorted tetrahedral geometry by two N atoms from a 2,2′-dimethyl-4,4′-bi-1,3-thiazole ligand and two Br atoms. In the crystal structure, intermolecular C—H...Br hydrogen bonds and π–π contacts between the thiazole rings [centroid–centroid distances = 3.670 (3) and 3.614 (2) ] stabilize the structure.
Biodegradable Biopolymers: An Overview On Polyhydroxyalkanoates
Daryoush Abedi
Iranian Journal of Pharmaceutical Research , 2006,
International Journal of Engineering Science and Technology , 2011,
Abstract: This paper presents the effects of geometrical structure on microwave and optical properties of traveling wave electroabsorption modulators (TWEAMs) based on asymmetric intra-step-barrier coupled double strained quantum wells (AICD-SQW) active layer. The AICD-SQW active layer structure has advantages such as very low insertion loss, zero chirp, large Stark shift and high extinction ratio in comparison with the intra-step quantum well (IQW) structure. Firstly, the influences of the intrinsic (active) layer thickness and width on effective optical index and confinement factor are analyzed. Furthermore, the effect of the intrinsic layer thickness on their transmission line microwave properties such as microwave index, microwave loss, andcharacteristic impedance are evaluated. The thickness and width of active layer are changed from 0 μm to 1.4 μm and 1 μm to 3 μm, respectively. Finally, the frequency response of TWEAM based on AICD-SQW active layer is calculated using circuit model.
Kambiz Abedi
International Journal of Advances in Engineering and Technology , 2011,
Abstract: In this paper, a travelling wave electroabsorption modulators (TWEAMs) based on asymmetric intra-step-barrier coupled double strained quantum wells (AICD-SQW) active layer is designed and analyzed at 1.55 μm for the first time. The AICD-SQW structure has advantages such as very low insertion loss, zero chirp, large Stark shift and high extinction ratio in comparison with the intra-step quantum well (IQW) structure. For this purpose, the influence of the electrode width and ground metal separation on their transmission line microwave properties (microwave index, microwave loss, and characteristic impedance) and modulation bandwidth are analyzed.
Submanifolds of a conformal Sasakian manifold
E. Abedi
Mathematics , 2014,
Abstract: In the present paper first, we define the conformal Sasakian manifolds and then we study geometry of invariant, anti-invariant and CR-submanifolds of conformal Sasakian manifolds.
Design a Collector with More Reliability against Defects during Manufacturing in Nanometer Technology, QCA  [PDF]
Milad Sang Sefidi, Dariush Abedi, Mehdi Moradian
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.66038

Nowadays Quantum Cellular Automata (QCA) as the leading technology in design of microelectronic systems has been raised. With respect to high velocity and density in low power and also simple concepts, this technology is a viable alternative to CMOS technology. In collector design, the primary component of each processor is very important. Due to the small elements in this technology, failure rate in manufacturing process technology is very high. In the other hand, the simulation shows that the intersection point of two wires is one of the critical points in QCA circuits. This means that defects in the manufacturing process around these points can cause malfunction in the circuit performance. In this paper, a collector in cross sections of wire in his new method used higher reliability against defects during manufacturing has been developed. QCA Designer software is used to simulate the case study system.

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