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Search Results: 1 - 10 of 100 matches for " Nemat Khansari "
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Effect of High Dose Natural Ionizing Radiation on the Immune System of the Exposed Residents of Ramsar Town, Iran
Massoud Attar,Yaghob Molaie Kondolousy,Nemat Khansari
Iranian Journal Of Allergy, Asthma and Immunology , 2007,
Abstract: Iran is one of several countries that has regions of high dose natural ionizing radiation. Two wellknown villages in the suburb of Ramsar Town in the Caspian Sea strip, Taleshmahaleh and Chaparsar,have background radiation that is 13 times higher than normal. This radiation is the result of Radium 226 and Radon gas both of which are highly water soluble.While people living in these regions do not suffer from any major health problems, we decided to study the their immune responses to infection and inflammation in order to determine if their habitat affects their immune defense mechanisms as a way of compensating for their exposure to high dose environmental ionizing radiation.Our results showed that the total serum antioxidant level in the exposed people was significantly lower than the individuals not exposed to high dose natural ionizing radiation. The exposed individuals also had higher lymphocyte-induced IL-4 and IL-10 production, and lower IL-2 and IFN-γ production. In addition, neutrophil NBT, phagocytosis, and locomotion were higher in the exposed group. In contrast, lymphocyte proliferation in response to PHA was unaffected.We conclude that the immune system of individuals exposed to high dose ionizing radiation has adapted to its environment by shifting from a Type 1 to a Type 2 response to promote antiinflammation.This may be because inflammatory Type 1 responses generate more free radicals than Type 2 responses, in addition to the free radicals generated as a result of high environmental radiation.Thus, the serum total antioxidant level in the exposed residents was lower than the unexposed group.
A variational approach to a singular elliptic system involving critical Sobolev-Hardy exponents and concave-convex nonlinearities
Nemat Nyamoradi
Mathematical Sciences , 2013, DOI: 10.1186/2251-7456-7-11
Abstract: This paper is concerned with a quasilinear elliptic system, which involves the Caffarelli-Kohn-Nirenberg inequality and multiple critical exponents. The existence and multiplicity results of positive solutions are obtained by variational methods.
The Effect of Dietary Alhagi (Camel grass) Ensiled with Different Levels of Low Quality Date-Palm on Apparent Nutrient Digestion Coefficients in Kermani Sheep
Nemat Ziaei
Research Journal of Biological Sciences , 2012, DOI: 10.3923/rjbsci.2010.314.317
Abstract: A digestibility trial was conducted to evaluate feed consumption and digestibility coefficients of DM, OM, CP and Ca in Kermani lambs fed Alhagi silages supplemented with low quality date palm. Animals were randomly distributed into three groups of three lambs. The first group was fed silage containing 5% date-palm, the second group fed silage containing 10% date-palm and the third one received silage containing 15% date-palm. In the digestibility trial, three animals from each group were housed separately in metabolism cages in order to collect faeces. The apparent digestibility of OM was not affected as the date level in silage increased. The digestibility of DM (p = 0.065), NDF (p<0.001), ADF (p<0.05) and CP (p<0.001) decreased as the date palm level was increased from 5-15%. Dry Matter Intake (DMI) was increased from 433.9-467.4 g day-1 in lambs fed diet containing 15% date-palm silage. Results of this experiment suggested that silage containing 15% date-palm could be a good quality roughage for small ruminants.
Effect of Educational Plan on Adherence Rate among Children with Persistent Asthma
Bilan Nemat
Pakistan Journal of Biological Sciences , 2008,
Abstract: This study was conducted to survey the effect of education and regular follow up on adherence rate of children with mild to moderate persistent asthma. In a semi-experimental study (before and after), two groups of children with mild to moderate persistent asthma, referred to outpatient clinic of Tabriz University of Medical Sciences were compared. First group included 200 asthmatic children who were treated at least for duration of one year by conventional method. The second group included 300 patients at the same age and severity of disease that were treated at least one year by a comprehensive plan of education and regular follow up visits as well. Data were analyzed by Chi-square and p<0.05 was considered as significant difference. Findings indicate that in first group 100 (50%) and second group 295 (84/3%) had adherence rate more than 50% (p = 0.00). Considering adherence rate of ≥50% there was significant difference between two groups with mild persistent asthma (p = 0.00). Present findings indicate that education and scheduled follow up can result in higher degree of adherence.
Existence of three positive solutions for a system of nonlinear third-order ordinary differential equations
Nemat Nyamoradi
Electronic Journal of Differential Equations , 2011,
Abstract: In this work, we use the Leggett-Williams fixed point theorem, we prove the existence of at least three positive solutions of a boundary-value problem for system of third-order ordinary differential equations.
Positive solutions for systems of third-order generalized Sturm-Liouville boundary-value problems with (p,q)-Laplacian
Nemat Nyamoradi
Electronic Journal of Differential Equations , 2011,
Abstract: In this work, we use the Leggett-Williams fixed point theorem to prove the existence of at least three positive solutions to a system of third-order ordinary differential equations with (p,q)-Laplacian
Modified Decomposition Method with New Inverse Differential Operators for Solving Singular Nonlinear IVPs in First- and Second-Order PDEs Arising in Fluid Mechanics
Nemat Dalir
International Journal of Mathematics and Mathematical Sciences , 2014, DOI: 10.1155/2014/793685
Abstract: Singular nonlinear initial-value problems (IVPs) in first-order and second-order partial differential equations (PDEs) arising in fluid mechanics are semianalytically solved. To achieve this, the modified decomposition method (MDM) is used in conjunction with some new inverse differential operators. In other words, new inverse differential operators are developed for the MDM and used with the MDM to solve first- and second-order singular nonlinear PDEs. The results of the solutions by the MDM together with new inverse operators are compared with the existing exact analytical solutions. The comparisons show excellent agreement. 1. Introduction Singular nonlinear partial differential equations (PDEs) arise in various physical phenomena in applied sciences and engineering from such areas as fluid mechanics and heat transfer, Riemannian geometry, applied probability, mathematical physics, and biology. The Adomian decomposition method (ADM) and modified decomposition method (MDM) are semianalytical methods that give approximate analytical solutions for the differential equations. MDM was first developed by Wazwaz and El-Seyed [1] who applied it to solve the ordinary differential equations (ODEs). Since then the MDM has been used for solving various equations in mathematics and physics [2–4], boundary value problems [5–9], various problems in engineering [10–13], and initial-value problems [14–17]. Adomian et al. [14] solved the Lane-Emden equation using the MDM. Wazwaz [15] investigated singular initial-value problems, linear and nonlinear, homogeneous and nonhomogeneous, by using the ADM. Hasan and Zhu [16] reported the solution of singular nonlinear initial-value problems in ordinary differential equations (ODEs) by the ADM. Wu [17] extended the ADM for the calculations of the nondifferentiable functions in nonsmooth initial-value problems. His iteration procedure was based on Jumarie Taylor series. Abassy [18] introduced a qualitative improvement in the ADM for solving nonlinear nonhomogenous initial-value problems. Lin et al. [19], based on a new definition of the Adomian polynomials and the two-step Adomian decomposition method combined with the Pade technique, proposed a new algorithm to construct accurate analytical approximations of nonlinear differential equations with initial conditions. Wazwaz et al. [20] used the ADM to handle the integral form of the Lane-Emden equations with initial values and boundary conditions. To the best knowledge of author, till now, no one has attempted the modified decomposition method on solving singular nonlinear
CYTOKINE PATTERN OF TH1 AND TH2 CELLS IN PREGNANCY
SH. Riazi N. Khansari
Acta Medica Iranica , 1998,
Abstract: Experimental and clinical investigations indicate that antibody production and Tvliclper 2 (TN2) cvtokinc pattern, cg; Irucrtcukinc - -I, 10 (JL.J, ILID) arc domin ant during pregnancy_ COflSCqllCIlI~"" The T-/iclpa 1 (THI) celts activities decrease in pregnancy. Thus the cell- mediated immunity is paniattv depressed. All these events help fetus as an allograft survives ill the mother's wems. III this research we: measured Tli cvtokincs in the sera of hcalthv prcgncl!lf and llOfl-preglJ{mr women (IL]. IL-I. intcrfron-gannna; IFN-y). Pregnant women '""1101"'(~d s(l,'lliftcaw decrease ill mean semm level of IL2 and IFN - Y. this means depression of cell- mediated immunity. This /illdillt; explains increased incidence oj some of the intmccllutvr injections ami survival 0/ the [ctus during pregnancy.
DEFENCE MECHANISMS OF THE CENTRAL NERVOUS SYSTEM
Massoumeh Ebtekar,& Nematollah Khansari
Acta Medica Iranica , 1993,
Abstract: The close relationship between the immune system and the central nervous system (CNS) has been well-studied. The CNS regulates almost all the functions of the immune system; however, the effect and/or the control of the immune system on the CNS has not been well-studied yet. Recent reports suggest that the CNS has its own defence mechanism(s). In this review, attempts have been made to discuss some of the controversial issues in order to approach a clear conclusion.
Identification and Evaluation of the Effective Criteria on Customer Satisfaction with Kitchen Worktops Product  [PDF]
Majid Azizi, Nemat Allah Mohebbi, Vahid Nabavi
iBusiness (IB) , 2012, DOI: 10.4236/ib.2012.43030
Abstract: In cycle of attraction and keeping the customers, fulfilling the customer satisfaction via identifying of their needs is very important. So, identifying the amount of customer satisfaction and informed of the field of strength and weakness in this regard, helps manager programming in line with customers better maintenance. The objective of this study is determination and priority of effecting criteria on customer satisfaction of worktops product. For this purpose, after preliminary investigation and interviews with experts and worktops customers, the effective criteria were identified. Then the priority rates (weighting value) of obtained criteria and sub-criteria were determined by Analytical Hierarchy Process (AHP). On the base of obtained results the criteria of selling and price condition, delivery condition, payment condition, the quality of CPL veneer, the quality of used MDF and lead time of product have the highest priorities, respectively.
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