oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 326 matches for " Sabahi Masoumeh "
All listed articles are free for downloading (OA Articles)
Page 1 /326
Display every page Item
Neonatal thyroid screening in a mild iodine deficiency endemic area in Iran
Najafi Mohammad,Khodaee Gholam,Bahari Mohammad,Sabahi Masoumeh
Indian Journal of Medical Sciences , 2008,
Abstract: Background : Evaluated serum thyroid-stimulating hormone (TSH), as an early index for diagnosis of neonatal hypothyroidism, indicates insufficient supply of thyroid hormones. Objective : The aim of the study was to estimate the incidence of neonatal hypothyroidism and assessment of iodine deficiency in the eastern part of Iran. Settings and Design : A cross-sectional study was conducted in a pilot screening. Materials and Methods : The measurement of blood TSH spotted on filter paper was performed by ELISA method in 59,436 neonates. TSH value equal to 5 mU/L was considered cut off point. The diagnosis of hypothyroidism in neonates with the blood TSH higher than the cut off point was based on clinical examinations and laboratory tests (serum TSH and T4). Statistical Analysis: The groups were compared using chi-square and ANOVA tests. Results : In our study, the recall rate and incidence of hypothyroidism were 3.6% and 2 per 1000 neonates respectively. Based on the proposal made by WHO/UNICEF/ICCIDD, the results of our study showed a mild iodine deficiency in the area. Conclusions : A comprehensive policy should be developed for control of iodine deficiency and treatment of hypothyroidism in the studied population and neighboring countries.
Hepatitis C Virus entry: the early steps in the viral replication cycle
Ali Sabahi
Virology Journal , 2009, DOI: 10.1186/1743-422x-6-117
Abstract: Approximately 170 million are infected with the hepatitis C virus (HCV) world wide. HCV is a positive strand RNA virus belonging to the flaviviridae family and is the sole member of the genus Hepacivirus. It is a hepatotropic virus which replicates in the cytoplasm of hepatocytes. In the United States an estimated 2.7 million are HCV RNA positive [1]. Most individuals infected with HCV show little or no symptoms during the acute phase of the infection. Of those infected with HCV, 54–86% fail to clear the virus and develop a chronic infection. The chronic phase can last many decades and can ultimately lead to end stage liver disease. In retrospective studies in individuals with chronic HCV infections, cirrhosis of the liver occurred in 17–55%, hepatocellular carcinoma (HCC) developed in 1–23%, and liver related death occurred in 4–15%. In prospective studies, cirrhosis developed in 7–16% of chronically infected individuals, HCC occurred in 0.7%–16%, and liver related death in 1.3–3.7% [2]. HCC, by itself, is the third leading cause of cancer related deaths worldwide with 40.1% of patients with HCC being anti-HCV positive [3].Since the initial acute phase of a HCV infection is in most cases asymptomatic, most infected individuals seeking treatment are chronically infected. The goal of any treatment is to achieve a sustained virological response (SVR), which is the absence of serum HCV RNA up to 6 months after therapy is concluded. The initial tool for treatment for a HCV infection was mono-therapy with interferon-α (IFN-α). An improvement was made to this therapy with the introduction of pegylated interferon-α (peg-IFN-α). The purpose and result of the pegylation of IFN-α was an increase in the half life of the drug, in vivo, from a few hours to days. This resulted in an increase of greater than 100% in achievement of SVR when compared to treatment with IFN-α [4]. To increase efficiency of the treatment, peg-IFN-α therapy has been supplemented with ribavirin. Combinat
High Performance FPGA Based Digital Space Vector PWM Three Phase Voltage Source Inverter
Bahram Rashidi,Mehran Sabahi
International Journal of Modern Education and Computer Science , 2013,
Abstract: This paper focuses on the design of a low power and high performance FPGA based Digital Space Vector Pulse Width Modulation (DSVPWM) controller for three phase voltage source inverter. A new method is proposed to realize easy, accurate and high performance DSVPWM technique based on FPGA with low resource consumption and reduced execution time than conventional methods. Equations of SVPWM are relatively complicated and need a considerable time to execute on a typical microcontroller, therefore a simple method is presented to minimize run time of instructions, e.g. the multiplication operation used in these equations is replaced by a proposed signed and unsigned shifter using 2 to 1 multiplexer unit. Total power consumption of controller is reduced to 37 mW at 100MHz clock frequency. The proposed DSVPWM technique algorithm was synthesized and implemented using Quartus II 9.1V and Cyclone II FPGA, to target device EP2C20F484C6. Also power is analyzed using XPower analyzer. Experimentation and results demonstrate that proposed method have high performance than other works.
The Effect of Television Decors on the Change of Reverberation Time of the Studio  [PDF]
Mohsen Karami, Masoumeh Shafieian
Open Journal of Acoustics (OJA) , 2013, DOI: 10.4236/oja.2013.32005
Abstract: Reverberation time within studios decor is changed because of addition of its surface to the overall surfaces of the studio and also the additional absorption of its materials. It seems reverberation time changes due to studios decor is little because surface of the decor is small in comparison with the overall surfaces of the studio and surface has an important role in room constant and therefore in reverberation time. But these changes do not only depend on added surfaces and their absorption. Reverberation time is also dependent on shape of the decor and sometimes. It can decrease the effects of added surfaces which are used to increase the reverberation time. In this paper, a standard television studio is designed and implemented by using ODEON and 12 different decor which their dimensions and materials are similar to the actual ones, are applied inside the studio. Then studios decor effects on reverberation time of the studio are computed, compared and analyzed.

Simultaneous Use of Entomopathogenic Fungus Beauveria bassiana and Diatomaceous Earth against the Larvae of Indian Meal Moth, Plodia interpunctella  [PDF]
Mohsen Arooni-Hesari, Reza Talaei-Hassanloui, Qodrat Sabahi
Advances in Bioscience and Biotechnology (ABB) , 2015, DOI: 10.4236/abb.2015.68052
Abstract: The suppressive ability of entomopathogenic fungus Beauveria bassiana alone and in combination with diatomaceous earth (DE) was studied against the larvae of Indian meal moth, Plodia interpunctella (Hübner) (Lep., Pyralidae). This study clearly showed that simultaneous use of B. bassiana and DE against larvae of P. interpunctella, not only could reduce the required concentration of fungal conidia or DE, but also could shorten the time need for showing insecticidal effects. The LC50 value of fungus at 7 d after treatment was 9.8 × 105 conidia mg-1 diet. Larvae showed a dose response to B. bassiana, and the addition of diatomaceous earth at 500 and 2000 ppm resulted in a significant increase in mortality. Larval mortality reached to the maximum of 28.3% and 71.7% after 7 d exposure to 500 and 2000 ppm DE concentrations, respectively. The LC50 value for B. bassiana in the presence of DE 500 ppm was 4.6 × 104 con. mg-1 diet and of DE 2000 ppm was 1.65 × 103 con. mg-1 diet. According to our results, B. bassiana and DE can be considered as two suitable candidates for integration into IPM strategy.
Supramolecular assembled of hexameric water clusters into a 1D chain containing (H2O)6 and [(H2O)4O2] stabilized by hydrogen bonding in a copper complex
Masoumeh Tabatabaee
Chemistry Central Journal , 2012, DOI: 10.1186/1752-153x-6-5
Abstract: {[Cu(pydc)(amp)].3H2O}n has been hydrothermally synthesized and characterized by elemental analysis and by IR spectroscopy. A wide range of hydrogen bonds (of the O-H...O, N-H...O and N-H...N type) are present in the crystal structure. Hydrogen bond interactions between the co-crystallized water molecules led to formation of six-membered rings with chair conformation.In {[Cu(pydc)(amp)].3H2O}n, there are three uncoordinated water molecules. Thermal methods confirm number of co-crystallized water molecules in polymer. Hydrogen bond interactions between the co-crystallized water molecules led to the formation of a six-membered ring with the chair conformation. These rings are part of a 1D chain containing six-membered O6 rings, which are alternately made from (H2O)6 and [(H2O)4O2] rings. [(H2O)4O2] rings are also in chair conformation.Water is nature's solvent and plays a fundamental role in biological and chemical processes. It is the most abundant and cheapest solvent available for the development of new reagents and the study of chemical processes [1]. Understanding of the behavior of water clusters are important and structural information of small water clusters is the first step towards the understanding of the behavior of bulk water [2]. An extensive investigation of small and medium sized water cluster (H2O)n (n = 2-100) structures have been reported in recent years [3,4]. Various water clusters including pentamers [5,6], hexamers [6-8], heptamers [9-11], octamers [6,8,12,13], decamers [6,14-16] and 1D or 2D infinite water chains [2,17,18] in a number of organic and inorganic-organic hybrid hosts, have been structurally characterized. Recently, we also reported a tetrameric water cluster rings in the crystal structure of a new proton transfer system derived from pyridine-2,6-dicarboxylic acid and 2-amino-4-methylpyridine [19]. Several different conformations for the water hexamer, such as all-boat [20], all chairs or an intermediate between chair and boat [3,21
(2-Aminopyrimidine-κN1)diaqua(pyridine-2,6-dicarboxylato-κ3O2,N,O6)nickel(II) monohydrate
Masoumeh Tabatabaee
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810016843
Abstract: The reaction of Ni(NO3)2·6H2O with pyridine-2,6-dicarboxylic acid, NaOH and 2-aminopyrimidine in aqueous solution leads to the formation of the title complex, [Ni(C7H3NO4)(C4H5N3)(H2O)2]·H2O. The NiII ion is coordinated by one N and two O atoms of the tridentate chelating pyridine-2,6-dicarboxylate anion, one heterocyclic N atom of the 2-aminopyrimidine ligand, and two water molecules. The resulting geometry for the [NiN2O4] coordination environment can be described as distorted octahedral. One uncoordinated water molecule completes the asymmetric unit. Extensive O—H...O and N—H...O hydrogen-bonding interactions between the NH2 group of 2-aminopyrimidine, carboxylate groups, and coordinated and uncoordinated water molecules contribute to the formation of a three-dimensional supramolecular structure.
The effect of Echinophora-platyloba on primary dysmenorrhea
Masoumeh Delaram
Behbood , 2011,
Abstract: Background: Dysmenorrhea occurred in about fifty percent of women with regular menstruation. Different methods were applied for treatment and medications with lower side effects are preferred. Aim of this study was to detect the effect of echinophora-platyloba on primary dysmenorrhea in students.Methods: This single blind clinical trial was carried out in single students with primary dysmenorrhea in the Shahrekord University of Medical Sciences. Sixty students were randomly divided into two groups receiving; the echinophora-platyloba extracts or placebo. Visual analogue scale was used to detect the severity of desmenorrhea. At the end of first and second month after intervention, the severity of pain was assessed and compared with before intervention. Data was analyzed by SPSS software using chi-square, t and mann-whitney tests and P<0.05 considered significant.Results: There was no significant difference between total score of dysmenorrhea before and after intervention (34.74±10.86 vs. 35.55±11.16) in echinophora-platyloba and placebo groups. There was a significant decrease in echinophora-platyloba group (22.49±7.33) compare to the placebo (28.93±9.91) after two-month intervention (P<0.001).Conclusion: Echinophora-platyloba extract reduced the severity of dysmenorrhea. Administration of echinophora-platyloba is recommended to reduce of dysmenorrhea in the students.
El hejab (pa oleta islámica) en el Irán actual: una visión de las mujeres respecto a su uso
Masoumeh Velayati
Economía, sociedad y territorio , 2001,
Abstract: El trabajo examina las diferentes formas en que las mujeres iraníes perciben y usan el hejab, enfatizando en el hecho de que los significados otorgados al mismo son complejos y contradictorios tanto para las mujeres que lo usan como para las que no, y juega papeles diferentes según los contextos. En el artículo se hace una comparación entre el uso del hejab antes, durante y después de la Revolución Islámica, y se contrasta la literatura escrita por feministas musulmanas con las percepciones de algunas informantes. El trabajo concluye que el hejab obligatorio es una herramienta patriarcal usada por los hombres para controlar a las mujeres, mientras que el hejab voluntario es una herramienta usada por las mujeres para liberarse a sí mismas de las ataduras patriarcales y culturales y para legitimar su presencia en la vida pública, al tiempo que conservan sus tradiciones culturales.
Multiple Functions of the P75 Neurotrophin Receptor in the Nervous System
Masoumeh Firouzi
Zahedan Journal of Research in Medical Sciences , 2012,
Abstract: Background: The P75 neurotrophin receptor (p75NTR) is a transmembrane protein that binds the nerve growth factor (NGF) and implements multiple functions in the nervous system. It is expressed widely during the development of the nervous system although its expression is dramatically decreased at adulthood. Though the P75 neurotrophin receptor has been identified more than 35 years ago, our knowledge about its structure and function has barely increased. Materials and Methods: In this review various methods are used to search databases and reliable scientific resources have been reviewed to give an up-to-date panoramic picture of the protein expression, structure, function, and its interaction with other known molecules.Results: P75NTR not only in neurons but also in various types of glial cells is expressed. In addition to NGF, this receptor can also bind the tropomyosin kinase receptors. Some pathological conditions such as neurodegenerative diseases and nerve damages are followed by the considerable increased expression of p75NTR.Conclusion: In this study, the role of p75NTR in the nervous system of human beings has been investigated and it has been illustrated that how spinal cord repair can improve by blocking of p75NTR. It seems that in addition to p75NTR, someother homologues are also involved in this pathway. Further studies are required to elucidate more details about the role of p75NTR in the development and function of the nervous system.
Page 1 /326
Display every page Item


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