oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 9 )

2018 ( 10 )

2017 ( 24 )

2016 ( 30 )

Custom range...

Search Results: 1 - 10 of 2959 matches for " Mehdi Heidari "
All listed articles are free for downloading (OA Articles)
Page 1 /2959
Display every page Item
Legal System Governing on Water Pollution in Iran  [PDF]
Flora Heidari, Farhad Dabiri, Mehdi Heidari
Journal of Geoscience and Environment Protection (GEP) , 2017, DOI: 10.4236/gep.2017.59004
Abstract: In the present era, water contamination represents one of the considerable environmental problems. Population growth along with ever increasing industrial developments has resulted in the contamination of most of the water resources in the world, bringing about serious problems for humans and other living organisms. According to the human life on earth depends on the way different water resources are exploited, the most important way to preserve the quality of water resources is to codify appropriate regulations and standards and develop plans for proper and principled implementation of them. Therefore, it seems to be necessary to take required actions to manage water resources optimally. In this regard, one of the most significant legal tools is the law. Following a descriptive-analytic approach, the present research aims to consider legal challenges in the context of water contamination briefly. Investigations indicate that, given the limitations in water resources, in future, water contamination will raise serious problems for the country should the solutions and measures required for tackling this issue are not well incorporated into respective regulations. As such, in order to systemize the activities within this scope, it is necessary to codify a comprehensive act about different water-related topics, so as to cover all separate and sparse pieces of regulations on water. Further, acquiring help from experts when preparing the regulations with an emphasis on the inhibitory role of penalties, roles of NGOs and culture-making in the society will contribute to the successful legal protection of the quality of water resources.
Maximally Entangled States in the Hydrogen Molecule: The Role of Spin and Correlation  [PDF]
Mohammad Ali Vesaghi, Mohsen Babamoradi, Mehdi Heidari Saani
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.27079
Abstract: Many electron calculations on a simplest realistic two electron system i.e. H2molecule was applied and as the consequence correlation effects was reflected accurately in the wavefunctions of H2. Zanardi’s entanglement measurement, demonstrated that the maximum of entanglement for the ground state happens when U =J and this resolved the controversial conclusion of U = 0 for maximum entanglement. It was shown that the ground and third excited states are maximally entangled. These maximally entangled states and also the minimally entangled states are correlated to their spin’s property. The wavefunctions of the not magnetic (S = 0) ground and excited states explicitly depend on correlation parameters whereas the first excited states which is magnetic (S2 = 2 and Sz≠0) is not entangled. The second excited state is not magnetic but its wavefunction does not depend on correlation parameters therefore it is a moderately entangled state. In any case, by switching on a magnetic field an entangled state with Sz = 0 can be extracted from a not entangled degenerate magnetic state. We suggest that in a realistic molecular scale system, there is two criteria for finding maximally entangled electronic states, first the system should be in moderately correlated regime and second the system should have a non-magnetic (Sz = 0) electronic state.
Prostate Cancer’s Molecular Imaging by Targeting Based Nanoparticles: An Overview  [PDF]
Hossein Heidari, Alireza Salehi Fordoei, Mostafa Saffary, Mehdi Shafiee Ardestani
Health (Health) , 2015, DOI: 10.4236/health.2015.75069
Abstract: Today nanoparticles based drug delivery or imaging agents are extremely being investigated as a very powerful tool in early diagnostics or treatment of different kinds of cancers including prostate malignancies. Among the diverse developing nanomaterials, biocompatible biodegradable dendrimers and chitosan or PLGA (Poly Lactic-co-Glycolic Acid) derivatives are more considered due to their safer profiles. As a result, finding novel prostate imaging agents based on nano sized structures would be of high global interest which will be further discussed in this review.
Effect of a period of aquatic exercise therapy on the quality of life, anxiety and depression in patients with hemophilia
Mehdi Kargarfard,Mehdi Dehghani,Ahmad Heidari
Koomesh , 2011,
Abstract: Introduction: Muscle-Skeletal disorders are the most common problems in hemophilia patients that can affect the quality of life and psychological factors in these patients. The aim of this study was to evaluate the effect of a period of aquatic exercise therapy on the quality of life, depression and anxiety in hemophilia patients. Materials and Methods: In a semi-experimental study, 20 patients who referred to Isfahan Sayedo-Shohada hospital voluntarily were selected and then randomly in two experimental (n=10) and control (n=10) groups. Subjects of aquatic exercise therapy group started their activity in water for 8 weeks, 3 sessions per week about45 to 60 minutes, while the control group was only followed-up and during this period they did not experience any exercise. The quality of life, depression and anxiety variables of patients were measured by standard questionnaires in the beginning and end of eight week aquatic exercise therapy. Results: The results showed significant improvement in quality of life, depression and anxiety variables in aquatic exercise therapy group patients, compared with the control group after 8 week aquatic exercise therapy (p<0.05). Conclusion: Results of this study showed that aquatic exercise therapy can be used as an effective and helpful method to prevent and treat hemophilia patients because it leads to improve multi-dimensional variable quality of life, depression and anxiety in hemophilia patients .
An engineering geological appraisal of the Chamshir dam foundation using DMR classification and kinematic analysis, southwest of Iran
Torabi Kaveh,Mehdi; Heidari,Mojtaba;
Earth Sciences Research Journal , 2011,
Abstract: this paper describes the results of engineering geological investigations and rock mechanics studies carried out at the proposed chamshir dam site. it is proposed that a 155 m high solid concrete gravity-arc dam be built across the zuhreh river to the southeast of the city of gachsaran in south-western iran. the dam and its associated structures are mainly located on the mishan formation. analysis consisted of rock mass classification and a kinematic analysis of the dam foundation's rock masses. the studies were carried out in the field and the laboratory. the field studies included geological mapping, intensive discontinuity surveying, core drilling and sampling for laboratory testing. rock mass classifications were made in line with rmr and dmr classification for the dam foundation. dam foundation analysis regarding stability using dmr classification and kinematic analysis indicated that the left abutment's rock foundation (area 2) was unstable for planar, wedge and toppling failure modes.
Novel Missense Mitochondrial ND4L Gene Mutations in Friedreich's Ataxia
Mohammad Mehdi Heidari,Mehri Khatami
Iranian Journal of Basic Medical Sciences , 2011,
Abstract: Objective(s)The mitochondrial defects in Friedreich's ataxia have been reported in many researches. Mitochondrial DNA is one of the candidates for defects in mitochondrion, and complex I is the first and one of the largest catalytic complexes of oxidative phosphorylation (OXPHOS) system. Materials and MethodsWe searched the mitochondrial ND4L gene for mutations by TTGE and sequencing on 30 FRDA patients and 35 healthy controls.ResultsWe found 3 missense mutations [m.10506A>G (T13A), m.10530G>A (V21M), and m.10653G>A (A62T)] in four patients whose m.10530G>A and m.10653G>A were not reported previously. In two patients, heteroplasmic m.10530G>A mutation was detected. They showed a very early ataxia syndrome. Our results showed that the number of mutations in FRDA patients was higher than that in the control cases (P= 0.0287).ConclusionAlthough this disease is due to nuclear gene mutation, the presence of these mutations might be responsible for further mitochondrial defects and the increase of the gravity of the disease. Thus, it should be considered in patients with this disorder.
An engineering geological appraisal of the Chamshir dam foundation using DMR classification and kinematic analysis, southwest of Iran
Torabi Kaveh Mehdi,Heidari Mojtaba
Earth Sciences Research Journal , 2011,
Abstract: This paper describes the results of engineering geological investigations and rock mechanics studies carried out at the proposed Chamshir dam site. It is proposed that a 155 m high solid concrete gravity-arc dam be built across the Zuhreh River to the southeast of the city of Gachsaran in south-western Iran. The dam and its associated structures are mainly located on the Mishan formation. Analysis consisted of rock mass classification and a kinematic analysis of the dam foundation's rock masses. The studies were carried out in the field and the laboratory. The field studies included geological mapping, intensive discontinuity surveying, core drilling and sampling for laboratory testing. Rock mass classifications were made in line with RMR and DMR classification for the dam foundation. Dam foundation analysis regarding stability using DMR classification and kinematic analysis indicated that the left abutment's rock foundation (area 2) was unstable for planar, wedge and toppling failure modes.
Effects of a period of selected aerobic exercise on the levels of hemoglobin, hematocrit and red blood cells in pregnant women
Ahmad Heidari,Mehdi Kargarfard,Mehdyeh Jali
Koomesh , 2011,
Abstract: Introduction: The prevalence of anemia in pregnancy is nearly 8% in the first quarter, 12% in the second quarter and 29% in the third quarter based on hemoglobin levels. The purpose of this study was to examine the influence of a selected aerobic exercise period on hemoglobin, hematocrit, and red blood cells count in pregnant women after delivery. Materials and Methods: This Study was a quasi-experimental. From all women who were referred to the maternity unit of the clinic in Shahreza, 40 inactive pregnant women in second trimester aged 20-35 years were selected and then randomly divided in two experimental (n=20) and control (n = 20) groups. The women in the experimental group had selected aerobic exercise under an experienced instructor for 8 weeks (three sessions of 45 minutes per week with the intensity of 40-75 percent of maximum heart rate reserve), while the control group was only followed up. Blood hemoglobin, and hematocrit levels and also red blood cells count were measured before and after exercise in both groups. Results: A significant improvement were observed in the blood hemoglobin and hematocrit levels and also the number of red blood cells in the women of the experimental group following 8 weeks exercise with compared to the baseline levels of those variables and also to the control group (P<0.01). Unlike the control group, the experimental group showed an increase in blood hemoglobin and hematocrit levels and also number of red blood cells (P<0.05). Conclusion: Our findings indicate that the selected aerobic exercise program is an effective and safe method in reducing disease of anemia in pregnant women in second trimester.
Optimum Distribution Generator Placement in Power Distribution System Using Ant Colony Algorithm
Ghazanfar Shahgholiyan,MohamadAmin Heidari,Mehdi Mahdavi
Majlesi Journal of Electrical Engineering , 2009, DOI: 10.1234/mjee.v3i1.184
Abstract: The recent development in renewable energy systems and the high demand for having clean and low cost energy sources encourage people to use distributed generator (DG) systems. Proper addition and placement of DG units can increase reliability and reduce the loss and production cost. In this paper using Ant Colony method, we developed an optimum placing scheme for DGs. The proposed method is tested on an IEEE 34-shinhe system. Results show that if DGs are able to generate active power, their effectiveness will increase.
Study the effect of the organizational factors on the acceptance using combined heat and power Generation plants (small-scale generation) by organizational Consumers
Mehdi Momeni,Mohammad Rahim Esfidani,Ali Heidari
New Marketing Research Journal , 2012,
Abstract: The main goal of this research is to study the influence of organizational factors on the acceptance of using combined heat and power generation plants by organizational consumers. Organizational factors include the seven variables of organizational values, perception, organization representatives, organizational goals and tasks, organization, technology, organizational structure and organizational resources. Research method is typically descriptive-survey and applied based. Questionnaire has been used for data collection. The questionnaire has been developed based on theoretical principles and six points Likert spectrum. Content validity of questionnaires has been positively approved by scholars and experts. Data reliability has been computed using Cronbach’s alpha coefficient as 0.955, which is satisfactory. Descriptive and inferential statistics (correlation analysis, regression and T-test) have been used for data analysis. Findings imply that i) all of the above-mentioned variables influence the acceptance of power plants CHP (small-scale generation) by the organizational consumers, significantly; and ii) the order of importance and influence of organizational factors include organizational resources, organizational goals and tasks, perception, organization representatives, technology, organizational values, and organizational structure, respectively.
Page 1 /2959
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.