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Search Results: 1 - 10 of 843 matches for " Elham Yousefi "
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Regional Plan in Bahnamirrural District through Environmental Planning Process  [PDF]
Fatemeh Ghassami, Elham Yousefi, Zaynab Babazadeh Lahi, Shahrzad Faryadi
Open Journal of Ecology (OJE) , 2017, DOI: 10.4236/oje.2017.711041
Abstract: Physical development and planning of rural district is one of the most important environmental dimensions in rural areas. It is carried out by establishing spatial framework, in which economic and social activities are implemented successfully. In this regard, the current research was conducted for social, economic, and ecological development and planning in Behnemirrural district, using three major stages of planning process. These three stages included recognition, analysis, and integration. In the recognition stage, the natural, social, cultural, and physical features of the studied region were recognized. In the stage of analysis, facilities, issues, and their causes were analyzed by drawing causal analysis table. Then, issues were weighted and prioritized in terms of intensity, level of effect, and destruction importance. In the integration stage, the general goals were developed given the priority of issues. Then, operational goals and solutions were developed for each general goal and solutions were positioned on the map.
INOS and IFN? Gene Expression in Leishmania major-Infected J774 Cells Treated With Miltefosine
Shahram Khademvatan,Mohammad Javad Gharavi,Elham Yousefi,Jasem Saki
International Journal of Pharmacology , 2011,
Abstract: Miltefosine is the new drug of choice for the treatment of leishmaniasis. The aim of this work was to study the molecular mechanisms and immunomudolatory properties of miltefosine in J774 cell line infected with the Leishmania major (MRHO/IR/75/ER) parasite. In this experimental study infected J774 cell line by L. major, treated by miltefosine and incubated for 72 h. Total RNA was extracted and cDNA was synthesis. RT- PCR was used for study of IFN? and iNOS gene expression. IFN? and iNOS proteins were analyzed by Western blotting. Cell culture supernatant was examined by ELISA for of IL12 and IL10 concentration. After 4 h incubation, miltefosine increased iNOS and IFN? gene expression in L. major infected J774 cell line. Western blot analysis of extracted cell proteins showed 130 and 17 kDa of bonds related to iNOS and IFN?, respectively. After 48 h treatment with miltefosine, analysis of cell supernatant with ELISA showed a significant increase of IL12 but no change in IL10 Cytokine. Study showed that miltefosine in addition to its direct effect can improve cellular immunity with rising of IFN? and of iNOS genes expression that are able to activate macrophages.
Investigation of Anti-Toxocara and Anti-Toxoplasma Antibodies in Patients with Schizophrenia Disorder
Shahram Khademvatan,Niloufar Khajeddin,Sakineh Izadi,Elham Yousefi
Schizophrenia Research and Treatment , 2014, DOI: 10.1155/2014/230349
Abstract: Objective. The aim of the present study was to examine the relationship between Toxoplasma gondii and Toxocara spp. infections in patients with schizophrenia disorder. Method. A total of 100 patients with schizophrenia disorder and 95 healthy individuals participated in the study. Participants were tested for the presence of anti-T. gondii and anti-Toxocara spp. antibodies by ELISA and Western blotting. Data were analyzed using Chi-square test and Fisher9s exact test. Results. There were no differences in T. gondii IgG seroprevalence between patients with schizophrenia and healthy individuals ( ), but there were differences in seroprevalence between males and females with schizophrenia ( ). In contrast, Toxocara spp. IgG seroprevalence was greater in patients with schizophrenia disorder than in healthy individuals ( ), but there were no differences in seroprevalence between men and women with schizophrenia ( ). Finally, there were no differences in seroprevalence of T. gondii or Toxocara spp. IgG among different subtypes of schizophrenia, various age groups, residential area, or clinical course of treatment ( ). Conclusion. The present study suggests that patients with schizophrenia disorder are at elevated risk of Toxocara spp. infection. Moreover, contamination with T. gondii is a risk factor for schizophrenia in women. 1. Introduction Schizophrenia is a severe, disabling mental disorder with a devastating impact on patients, their family, and society [1]. Schizophrenia is a heterogeneous disorder characterized by a range of clinical features such as positive and negative symptoms [2], including a reduction in patients’ health-related quality of life [3]. The prevalence of schizophrenia has been reported to be 1% of the adult population [4], developing in late adolescence or early adulthood, and most patients suffer from the disease throughout their lifetime [1]. Toxocariasis is a helminthozoonosis, caused by the Ascaridida nematodes, Toxocara canis and Toxocara cati [5]. Dogs and cats are the definitive hosts of T. canis and T. cati, respectively, although other mammals, such as humans and rodents, can be infected [6]. Humans are infected by ingestion of infectious eggs [6], often as a result of direct contact with pets or consumption of contaminated vegetables or undercooked meat [7]. Toxocara infection is also often transmitted by contact with the soil. Young children, people who live in rural areas, and people with soil-related occupation are at increased risk for toxocariasis [8–10]. The presence of Toxocara spp. larvae in the central nervous
Semimicroscopic Dispersive Analysis of Nuclear-Nuclear Collisions on the Basis of Folding Potential  [PDF]
Abdolmajid Izadpanah, Marzieh Yousefi
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.512113
Abstract:

A semimicroscopic analysis of a set of experimental data of elastic α + 12C scattering was performed at several laboratory energies. The Woods-Saxon parameters were adjusted to obtain the best χ2 fit to the scattering data. The energy systematics of the positions of Airy minima was constructed, and it was shown that their positions depend linearly on the inverse center of mass energy. The parameters of the model potential have been determined unambiguously. It has been shown that the energy dependence of the volume integrals satisfies the dispersion relation and agrees well with the results obtained within a phenomenological analysis. Also, it has been shown that the found positions of the Airy minima satisfy the rule of the quadratical dependence of the position of the Airy minima on the reduced mass of the colliding nuclei.

The Effect of Evaporative Formations in Increasing the Salinity of the Water Resources in Mahdasht-Eshtehard Region (Iran)  [PDF]
Naser Ebadati, Hoseyn Yousefi
Journal of Geoscience and Environment Protection (GEP) , 2016, DOI: 10.4236/gep.2016.49001
Abstract: Considering the underground water resources salinity problem in Mahdasht to Eshtehard region of southern Alborz Province, we attempted to deal with the relationship between the water sources features especially salinity with the geology of the mentioned range in terms of petrology and structural properties. For this purpose after determining the study range, field investigation was performed to identify the geological formations and the distribution thereof as well as the faults locations using existing geological maps. Using a fourteen year period statistics (2009-2014), the static water table, the discharge rate, annual exploitation and the plain’s underground water level elevation (GIS) were analyzed and evaluated. Water samples were taken from 18 wells and chemical analysis determining the quality of water was used. The concentration contour maps of chloride, sulfate, sodium and total soluble solids together with the faults performance analysis showed that the highest salinity concentration relates to northeastern part of the plain. Concentration and qualitative results, the regional water quality can be classified in moderate to disagreeable in terms of potability and saline for agricultural use. The study findings showed that the high evaporative masses’ erosion rate and gypsum and saline sediment transport from the northeast Neogene formations have developed saline field in the plain and immethodical exploitation of water sources has considerably reduced the water quality and increased the salinity.
Estimates of Tritium Produced Ratio in the Blanket of Fusion Reactors  [PDF]
Mohammad Mahdavi, Elham Asadi
Open Journal of Microphysics (OJM) , 2013, DOI: 10.4236/ojm.2013.31002
Abstract:

For the preparation of tritium fuel as the main and rare fuel of reactors in the fusion reactors, the reactor blanket must be designed so that it provides enough tritium breeding ratio. The tritium breeding ratio, TBR, in the blanket of reactors should be greater than one, (TBR > 1), by applying lithium blanket. The calculations for proposed parameters (td , fb , η and tp), indicate that the estimated tritium breeding ratio is greater than one. The calculated TBR = 1.04 satisfies the tritium provision condition.

Transmission over Cognitive Radio Channel with Novel Secure LT Code  [PDF]
Elham Hosseini, Abolfazl Falahati
Communications and Network (CN) , 2013, DOI: 10.4236/cn.2013.53023
Abstract:

With the increasing of communication applications in recent years, the demand for radio spectral resources has increased significantly. Cognitive radio scenario was proposed to improve spectrum efficiency in wireless communication systems. In cognitive radio network, it is essential that control information is sent securely and reliably. Ensuring the trustworthiness of the transmitting of spectrum sensing information is important in the CR networks since spectrum sensing directly affects spectrum management and incumbent coexistence. In this paper, the first secondary link channel model is presented, then a secure LT Code is proposed to be compatible with presented channel model and acquires good QoS. As we may know, LT code overcomes packet loss when the channel of the SU is reclaimed by PU. In the new proposed combined encoding and ciphered block, a LT code matrix is used to generate a symmetric cryptographic key. Thus, less complexity observed in the processing computation. Besides, cryptographic key is not sent over the channel. As a result, an attacker has no way to eavesdrop the key unless he is prepared to consider all possible key combinations. This replaced block supplies secure controlling channel and increases spectrum efficiency too.

The Effect of Task Characteristics on IELTS Reading Performance  [PDF]
Behnam Behfrouz, Elham Nahvi
Open Journal of Modern Linguistics (OJML) , 2013, DOI: 10.4236/ojml.2013.31004
Abstract:

One of the skills that involve thinking processes is reading. Reading is a skill which allows students to become familiar with other people’s ideas; compare and contrast different ideas; examine and evaluate arguments, interpretations, beliefs, or theories; make inferences, predictions, or interpretations; and explore implications and consequences. In essence, reading is a skill that compels students to think critically. Thus, the present study aims to investigate the effects of task characteristics on the learners’ performance in the reading section of IELTS. To accomplish the purpose of the research, a sample of 50 male and female students participated in this study. In order to ensure the homogeneity of the participants and determine the participants’ reading proficiency level, a reading part of the IELTS test was conducted at the outset of the study. Based upon the results, 30 participants were selected to be included within this study. Next, five IELTS tests were given to the participants. The subsequent data was then analyzed using a one-way ANOVA and the Sheffe test. Data revealed that participants performed differently on the IELTS test due to different task types given as a treatment. The results suggest that task characteristics have a significant effect on IELTS reading test performance.

The Role of Religious Orientation, Psychological Well-Being, and Self-Esteem in Iranian EFL Learners’ Language Achievement  [PDF]
Elham Moradi, Jahanbakhsh Langroudi
Open Journal of Modern Linguistics (OJML) , 2013, DOI: 10.4236/ojml.2013.34043
Abstract: The present study aimed at finding the relationship of religious orientation (RO), psychological well-being (PWB), and self-esteem (SE) with language achievement (LA) among Iranian EFL learners. Furthermore, it investigated the predictability of dependent variable (LA) using all independent and predictor variables (RO, PWB, and SE). 126 senior and junior students majoring in English Translation and English Literature at Shahid Bahonar University of Kerman participated in the study. To obtain the required data, three questionnaires were utilized: Allport and Ross’s (1967) Intrinsic-Extrinsic Religious Orientation Scale (IEROS) to measure extrinsic and intrinsic religious orientations, Short Measurement of Psychological Well-Being by Clarke, Marshall, Ryff, and Wheaton (2001) to measure psychological well-being, and finally, The Rosenberg Self-Esteem Scale by Rosenberg (1965) to assess self-esteem. Moreover, participants’ GPAs in major courses were used as indicators of their language achievement. For analysis of data, Pearson Product Moment Correlation and Regression analysis were used. The results revealed that there was a significant positive relationship between IRO, PWB, and SE with LA and a significant negative relationship between ERO and LA. Additionally, all the independent variables together could predict LA and accounted for 95 percent of variability of students’ GPA.
The Development and Application of an Indirect ELISA Test for the Detection of Chicken Anaemia Virus (CAV) by VP1 in Chicken Flock Serum  [PDF]
Elham O. Mahgoub
Open Journal of Genetics (OJGen) , 2014, DOI: 10.4236/ojgen.2014.44029
Abstract:

Chicken anaemia virus (CAV) causes a viral disease in chickens worldwide and thus has economic importance. The main aim of this study was to develop a rapid, sensitive and specific VP1-CAVI indirect ELISA for the detection of CAV infection. The CAV-VP1, was separately cloned and expressed in recombinant E. coli. The purified recombinant CAV-VP1 protein was then coated as an antigen on an ELISA plates to evaluate its reactivity against chicken sera. The resulting indirect ELISA was then compared with a commercial ELISA. The specificity and sensitivity of the indirect ELISA were measured as 93.3% and 100%, respectively. A t-test produced a t-value of 15.805 for the indirect ELISA and revealed a significant difference between CAV-positive serum and CAV-negative serum (p-value of 0.001). For the second variable (i.e., a commercial ELISA), the t-test yielded a t-value of 5.063, which revealed a significant difference between CAV-positive serum and CAV-negative serum (p-value of 0.015). This intervention produces statistically significant improvements in both variables (p-values < 0.05). The correlation coefficient for the indirect ELISA was r = 0.93. Therefore, this work can be considered as a new achievement in diagnosis for Chicken anaemia virus in chicken flocks.

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