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Search Results: 1 - 10 of 117 matches for " Shohreh Abdolmohamadi "
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Factors Affecting SOC and NPK in the Rangeland, Forest and Agriculture; Case Study Halashi Catchment, Kermanshah, Iran  [PDF]
Shohreh Abdolmohamadi, Alireza Ildoromi, Mosayeb Heshmati
Journal of Geoscience and Environment Protection (GEP) , 2017, DOI: 10.4236/gep.2017.513002
Abstract: Land use change causes soil disturbance and thereby considerable soil nutrients depletion and environmental impacts. This research was conducted in Halashi catchment, Kermanshah, Iran to compare the variation of soil NPK and SOC in Agricultural Lands (AL), Rangelands (RL) and Forest lands (FL). The coverage of ground surface including plant crown, stone and litter was estimated in field by using quadrate plot (1 m2). Soil sampling and the analysis were carried out for each land use during April and May, 2015. Inter-rill, rill, gully and landslide were found as the dominant erosion features. The ANOVA analysis explored no considerable differences for soil texture, pH and Electrical Conductivity (EC). High clay and silt content induced clayey and silty soil that means Soil Organic Carbon (SOC) level in the AL, RL and FL were 1.14%, 1.45% and 2.13%, respectively, showing significant (p ≤ 0.05) different from each other among them. The respective values of total N in the AL, RL and FL were 0.14, 0.14 and 0.18 mg/kg, indicating significant decrease in the AL and RL. The respective mean avails P and exch. K in the AL, RL and FL were 15.72, 11.44, 11.38; 342.5, 375.0 and 374.5 mg/kg. Crop residues burning and tillage practicing cause depletion of SOC and NPK in AL, while as compared with FL, lower vegetation canopy and litter in the RL promotes soil nutrients and SOC lost due to overgrazing and converting to rain-fed lands. As a conclusion, rangeland was the intermediate site in terms of soil nutrient and SOC stock in the Halashi.
VFTO STUDIES DUO TO THE SWITCHING OPERATION IN GIS 132KV SUBSTATION AND EFFECTIVE FACTORS IN REDUCING THESE OVER VOLTAGES
Shohreh Monshizadeh
International Journal of Advances in Engineering and Technology , 2013,
Abstract: GIS substation due to its wide range of functions in power system due to its high reliability and easier maintenance are considered in the distribution network. For this Purpose in this paper the GIS 132KV substation model is studied[1]. In GIS 132KV with opening and closing the disconnect switch, the VFTO fast transient overvoltage with few nanoseconds forehead time is occurred[7]. This waves is released during the phase conductors and its caused tension in insulators and electrical equipment such as transformers. Transient electromagnetic field has been created, by these waves penetrates to environment by holes between GIS compartments and causes the effect on the electrical equipment and cables. These overvoltages have range about a few hundred MHz frequencies. In this substation the compartments transient voltage and its maximum amplitude at different points for different switching performance is calculated [2]. In this paper the simulations have been conducted with the EMTP software and simulation results are presented.
On the Evolution of Binary Neutron Stars
Shohreh Abdolrahimi
Physics , 2009,
Abstract: In this paper we investigate the evolution of binary neutron stars, namely, their magnetic field, spin, and orbital evolution. The core of a neutron star is considered to be a superfluid, superconductor type II. Flux expulsion of the magnetic field out of the core of a single neutron star has been discussed by previous authors. However, the evolution of the core magnetic field is substantially different for a binary neutron star. While for a single neutron star the fluxoids of the proton superconductor always move outward through the core, in a binary neutron star in the accretion phase fluxoids move back into the core. The subsequent increase of the core magnetic field results in the increase of the surface magnetic field. We ask weather within the framework of this model the formation of millisecond pulsars (MSPs) is possible. We show that despite the increase of the core magnetic field, MSPs are formed in this model. The evolution of the neutron star with various orbital periods, magnetic fields, spin periods, and other parameters are numerically investigated. The equation of state of the neutron star, initial orbital period of the binary, and other parameters of the binary have substantial effects on the evolution of period vs. magnetic field.
Velocity Effects on an Accelerated Unruh-DeWitt Detector
Shohreh Abdolrahimi
Physics , 2013, DOI: 10.1088/0264-9381/31/13/135009
Abstract: We analyze the response of an Unruh-DeWitt detector moving along an unbounded spatial trajectory in a two-dimensional spatial plane with constant independent magnitudes of both the four-acceleration and of a timelike proper time derivative of the four-accelration. In a Fermi-Walker frame moving with the detector, the direction of the acceleration rotates at a constant rate around a great circle. This is the motion of a charge in a uniform electric field when in the frame of the charge there is both an electric and a magnetic field. We compare the response of this detector to a detector moving with constant velocity in a thermal bath of the corresponding temperature for non-relativistic velocities, and in two regimes: ultraviolet and infrared. In infrared regime, the detector in the Minkowski space-time moving along the spatially two-dimensional trajectory should move with a higher speed to keep up with the same excitation rate of the inertial detector in a thermal bath. In ultraviolet regime, the dominant modification in the response of this detector compared to the black body spectrum of Unruh radiation is the same as the dominant modification perceived by a detector moving with constant velocity in a thermal bath.
Non-Governmental Organizations and the Barriers of Their Efficiency in Iran (after 1979)  [PDF]
Mohammad Ali Khosravi, Shohreh Shahsavari Fard
Open Journal of Political Science (OJPS) , 2016, DOI: 10.4236/ojps.2016.62019
Abstract: Whenever social actors find a gap between what there is and what should be, a plethora of problems happen to exist. In this regard, researchers in the field detect the problem and carry out a large number of studies to find the causes and facts related to such a social phenomenon. The form and structure of the problem determines the method of solution-finding and decision-making; hence, addressing such a problem is regarded as the main task of the policy-makers. Although permanent development is considered as one of the main objectives of every country, there remain a multitude of arguments in achieving such a precious purpose. To this end, the citizens’ social participation to carry out specific activities related to repairing or ameliorating social damage is regarded to be one of the most efficient ways in NGOs. Nevertheless, NGOs or “Saazman-e-Mar- dom Nahad”, as recently recognized in Iran, have encountered a plethora of problems in working efficiently in the developing countries; therefore, there is an urgent need to find solutions to fix or ameliorate the NGOs problems through a descriptive research design. In this regard, the current study finds that political, legal, and economic structural barriers as well as the limitations of financial sources, managerial weakness, lack of NGOs freedom as endogenous barriers, all and all, add to the malignant disease of NGOs.
The Ruling Elite Political Culture in Contemporary Iran  [PDF]
Mohammad Ali Khosravi, Shohreh Shahsavari Fard
Open Journal of Political Science (OJPS) , 2016, DOI: 10.4236/ojps.2016.63025
Abstract: History has showed us that development in every society depends on the elite political roles; hence, their viewpoints regarding socio-political programs and individuals’ needs have played a vital role in determining the fate of a specific society. Also, the elite political culture is considered as an effective factor in political development within the realm of political sociology. To this end, the current study sets out to put forward a precise definition of the political elite culture. In this respect, political elite is not defined in a general sense1 because 79 million Iranian people out of 80 million may regard themselves as elites. Rather, this term was used in a specific sense which was the term “Ruling Class” (Aron, 1991). Also, Moska utilized “the Ruling Class” and Lasswell employed the concept of “the Political Elite” (Badi, 2006). It is claimed that a non-participatory political culture rather than a participatory political one has been considered as one of the main serious reasons for the political underdevelopment; moreover, the elite political culture or ideology in the contemporary era has not been significantly influenced by the new tendencies and developments. Hence, such a culture has been regarded as the continuation of the old patrimonial culture. The present research employs the refined Gabriel Almondba’s model to answer the non-participatory political elite hypothesis during some specific periods of time.
Cervical Ectopic Pregnancy following Assisted Reproductive Technology: A Case Report
Firoozeh Ahmadi,Shohreh Irani
International Journal of Fertility & Sterility , 2012,
Abstract: Cervical ectopic pregnancy (EP) is an infrequent, life-threatening form of ectopic gestationpregnancy that implants within the endocervical canal. With the increase in use of assistedreproductive technology (ART) worldwide and more liberal use of transvaginal sonography (TVS)during early pregnancy, more cases of cervical ectopic pregnancy are being diagnosed. Earlydiagnosis of this condition by using ultrasound imaging allows for prevention of maternal morbiditydue to hemorrhage and leads to conservative management of this condition.We present the case ofa 38-year old woman (gravida 1, para 0) who was found to have acervical ectopic pregnancy at sixweeks of gestation.
The prevalence of virulence genes of E. coli strains isolated from children with urinary tract infection
Farshad Shohreh,Emamghorashi Fatemeh
Saudi Journal of Kidney Diseases and Transplantation , 2009,
Abstract: To evaluate the prevalence of virulence genes in E. coli strains isolated from urine samples of children with urinary tract infection(UTI) and their correlation with clinical data, we iso-lated E. coli strains from urine samples of children with UTI during the period of August 2005 - August 2006 and studied them for the presence of the virulence genes by PCR. A total of 96 E. coli strains were isolated. The prevalence of genes, pyelonephritis associated pili (pap genes), S-family adhesions (sfa gene), hemolysin (hly gene), and cytotoxic nercotizing factor type 1 (cnf-1-1 gene) among the isolated strains was 27.1%, 14.6%, 13.5% and 22.9 %, respectively. Pyelonephritis was more prevalent in the cases with positive virulence genes. The results showed significant correlation bet-ween age of the patient and the presence of the genes (P< 0.05). Cnf-1 gene was significantly more common in samples of patients with abnormal finding on the ultrasound of kidneys (P= 0.049). Our study demonstrated higher prevalence of pyelonephritis in the presence of E. coli virulence genes. Detection of the genes in urine samples may help in the management of UTI.
Factors Related to Regular Undergoing Pap-smear Test: Application of Theory of Planned Behavior
Farzad Jalilian,Shohreh Emdadi
Journal of Research in Health Sciences , 2011,
Abstract: Background: Cervical cancer is the second most common cancer among women in the world and the most common cancer in developing countries. Pap smear is and effective tool that can prevent death due to cervical cancer. The aim of this study was to determine the factors related to doing regular Pap-smear test based on the theory of planned behavior. Methods: In this cross-sectional study, conducted in Hamadan County, the west of Iran, during 2009, a total of 400 women's aged 20 to 70 years old, were randomly selected to participate voluntarily in the study. Participants filled out a self-administered questionnaire including the expanded theory of planned behavior components. Data were analyzed by SPSS version 13 using chi-square, t-test, and logistic regression statistical tests at 95% significant level. Results: Almost 63.8% of the participants had already done Pap-smear test at least once. About 28.3% of volunteers had followed a regular Pap-smear program. There was a significant correlation (P < 0.002) between family history of cervical cancer and undergoing regular Pap-smear test. In addition, there was a significant correlation (P < 0.001) between age and undergoing regular Pap-smear test. The best predictor for regular Pap-smear testing was subjective norms with odds ratio estimate of 1.14 [95% CI: 1.04, 1.23]. Conclusion: Based on our findings, subjective norms may be one of the most effective factors among women for doing regular
Early Detection and Screening of Cervical Cancer in Hamadan City During 1998-2002
Shohreh Alimohammadi,Mehrangiz Zamani
Journal of Research in Health Sciences , 2011,
Abstract: Background: Early detection and screening have been successful in reducing mortality in some countries, but not in others. This is most of due to poor management and implementation of inappropriate policies. All of patients with cervical cancer are in developing countries. The effectiveness of screening for cancer of the cervix in these countries is dramatic. It seems that after 50 years Pap smear yet has the best quality and quantity for the screening. Methods: In this study using a retrospective study we evaluated the results of screening between privacy and governmental sectors to compare before and after the seminar of Pap smear. Results: The results show that in 1998 the rate of mild dysplasia 0.0004%, CIN (II) 0.0004%, and CIN (III) 0.0014%. During 1999 to 2001 there found just one case with cancer, one case CIN(llI), CIN (II)'4 cases and CIN(I) 7 cases. In private sector in 2002 from 1000 women, 53(5.3%) cases had ascus and 25 (2.5%) cases with mild dysplasia. During 1998 to 2001 the frequency of ascus was 4.7%, mild dysplasia 3.1% and 0.06% were CIN (II). The comparison between public and private sector during the studied years were statistically significant. Conclusion: This study showed that the results of Pap smear in the governmental sector are not reliable. So, it is suggested that Pap smear education for health workers should be performed seriously. Also, performing different workshops in this regard is essential
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