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Search Results: 1 - 10 of 20319 matches for " Seyed Ali Haerie-Rohani "
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Effect of β-Mercaptoethanol with and without BSO (DL-Buthionine Sulfoximine) on Resumption of Meiosis, in vitro Maturation and Embryo Development of Immature Mouse Oocytes
Hossein Eimani,Fatemeh Hassani,Seyed Ali Haerie-Rohani,Mohammad Hossein Nasr Esfahani
Cell Journal , 2006,
Abstract: Introduction: The purpose of this study was to evaluated the effect of β-mercaptoethanol on resumption of meiosis, in vitro maturation of immature mouse oocytes and resulting embryo development with and without BSO (DL-Buthionine sulfoximine). Material and Methods: Germinal vasicle (GV) were recovered from 6-8 weeks old NMRI ovaries and cultured in maturation medium in MEMα supplemented with 7.5IU/ml hCG, 100mIU/ml rhFSH, 5% FCS (control group) and adding 100μm β-mercaptoethanol (group 1) or with 5mM BSO + 100μm β-mercaptoethanol (group 2) for 24h. The matured oocytes then were fertilized and cultured for 5 days. Fertilization and development were accomplished in T6 medium. Results: The percentage of GV oocytes reaching to metaphase I (or undergo GVBD) were 78.5%, 85%, 86% in control group, group 1 and group 2 respectively, that no significant difference was detected between groups. The proportion of oocytes that progressed to the metaphase II (MII) stage was minimum within 5mM BSO group (group 2) and maximum within β-mercaptoetanol group (group 1) with significant difference comparing with control and each other (P≤0.05). The percentage of embryos reaching to morula stage within β-mercaptoetanol group was significantly higher than the control group (5% and 12.2% respectively). None of oocytes treated with BSO could pass the 8 cell stage. Conclusion: β-mercaptoetanol enhances IVM and improves embryo development. While adding BSO into the maturation medium even with β-mercaptoetanol decreases maturation and declines the embryo development.
The Effect of Monolaurin on Staphylococcus aureus and Escherichia coli
Seyed Mehdi Razavi Rohani,Ali Topchi
Research Journal of Biological Sciences , 2012, DOI: 10.3923/rjbsci.2011.661.665
Abstract: Microbial resistance to antibiotics, especially among staphylococcal strains is a major threat to public health. The aim of this study was to assessment of anti-bacterial effect of monolaurin on Staphylococcus aureus and Escherichia coli. In this study, colonies are cultured in nutrient broth media and incubated at 37°C for 24 h. Then, tubes chilled in the laboratory environment. Three different concentrations of monolaurin prepared and added to culture media containing BHI agar media. Then, these plates are incubated 37°C for 24 h and prepared to count. After 24 h, plates were out and colonies are counted and multiply in 100. Data were analyzed by SPSS software Version 16. Based on data revealed that at 60°C and more. There was no observed any microorganisms colonization either Staphylococcus aureus or Escherichia coli but at the 55°C, there was observed more decrease in colonization than 50°C. This finding suggests that chilling is one of the most important ways to maintenance of foods. The results also showed that temperature also increases inhibitory properties of monolaurin. The results of the study suggest that monolaurin have anti-bacterial effect against Staphylococcus aureus and Escherichia coli.
Metal ion–binding properties of the L-aspartic acid and tartaric acid, a coparative investigation. How can be increased the dosage of mineral absorption in the body  [PDF]
Seyed Ali Akbar Sajadi
Advances in Bioscience and Biotechnology (ABB) , 2010, DOI: 10.4236/abb.2010.14047
Abstract: A comparative research has been developed for acidity and stability constants of M(TTA)1 and M(Asp)2 complexes which have been determined by potentiometric pH titration. Depending on metal ion–binding properties, vital differences in building complex were observed. The present study shows that in M(TTA) complexes, metal ions are coordinated to the carboxyl groups, but in M(Asp) some metal ions are able to build macrochelate over amine group. Hence, the following intermolecular and as a result independent concentration equilibrium between an open–isomer M(Asp)op and a closed–isomer M(Asp)cl, has to be considered cl op. The amounts are reported. The results mentioned above demonstrate that for some M(Asp) complexes the stability constants is also largely determined by the affinity of metal ions for amine group. This leads to a kind of selectivity of metal ions and transfer them via building complexes with the aspartate. The result of this effect is a higher dosage-absorption of minerals in body. Based on the sort of metal ions, the drug-therapy can be different. For heavy metal ions this building complex helps the absorption and filtration of the blood plasma, and consequently the excursion of heavy metal ions takes place. This is an important method in microdialysis. Other metal ions such as the complexes can be considered as mineral carriers. These complexes in certain conditions (PH–range) can release the minerals in body.
A comparative investigation of interaction between metal ions with L-methionene and related compounds such as alanine, leucine, valine, and glycine in aqueous solution  [PDF]
Seyed Ali Akbar Sajadi
Advances in Bioscience and Biotechnology (ABB) , 2010, DOI: 10.4236/abb.2010.1109
Abstract: The acidity and stability constants of M-L (M: M2+; L: Met, L-methionine) complexes, determined by potentiometric pH titrations, were used to make a comparative investigation. The stability constants of the 1:1 complexes formed between M2+ and L–, were determined by potentiometric pH titration in aqueous solution (I = 0.1 M, NaNO3, 25°C). The order of the stability constants was reported. It is shown that regarding to M ion – binding properties, vital differences on complex bilding were considered. It is demonstrated that in M-L complexes, M ion is coordinated to the carboxyl group, is also able to bild macrochelate over amine group. The aforementioned results demonstrate that for M (Met) complex, the stability constants are also largely determined by the affinity of Cu ion for amino group. It is indicated that this additional interaction with amino groups can influence the character of some amino acid complexes in biological systems.
Effective Solution of Riemann Problem for Fifth Order Improperly Elliptic Equation on a Rectangle  [PDF]
Seyed Mohammadali Ali. Raeisian
American Journal of Computational Mathematics (AJCM) , 2012, DOI: 10.4236/ajcm.2012.24038
Abstract: In this paper we present a numerical method for solving Riemann type problem for the fifth order improperly elliptic equation in complex plane .We reduce this problem to the boundary value problems for properly elliptic equations, and then solve those problems by the grid methods.
Determining the Effectiveness of Cognitive Therapy on Mindfulness-Based in Marital Fatigue and Women Intimacy  [PDF]
Maryam Mosalla, Seyed Ali Aleyasin
International Journal of Clinical Medicine (IJCM) , 2017, DOI: 10.4236/ijcm.2017.84026
Abstract: This research aimed at determining the effectiveness of cognitive therapy based on mindfulness in marital fatigue and married women intimacy. The semi-experimental research design with witness group and evaluation for pretest-posttest was used. The study population consisted of married women, referred to health counseling center in the 1st district of Tehran during 2016 and lasted about 1 year. Using random sampling method, were selected 30 married women referred to health counseling center in the 1st district of Tehran, whom the main reason for their visit was declared incompatibility and marital conflict. And 15 of those who would like to participate in training mindfulness-based cognitive therapy, were in the experimental group and 15 others were in the witness group. For experimental group, were presented mindfulness-based interventions in 8 sessions every session in one and a half hours. In this study, to collect data was to use two questionnaires: measure marital intimacy and marital fatigue. After collecting the results, data were entered into the software Spss and assumptions were evaluated using analysis of covariance. The results showed that the average of experimental group compared with the control group after the intervention health was significantly different in variables like: physical fatigue, mental disability, emotional banality, and intimacy (p = 0.001). According to the findings above, it can be concluded that a mindfulness-based cognitive therapy training can reduce marital fatigue and as well as significantly effective in intimacy.
Review the Environmental Effects of Using Industrial Wastewater Effluent (Case Study: Iran Qom Shokouhie Industrial State)  [PDF]
Nona Jesmanitafti, Seyed Ali Jozi, Seyed Masoud Monavari
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.510089
Abstract:

The overall goal of this study is investigating the environmental impacts of using wastewater effluent of industrial states in irrigation of green space. For this purpose, industrial state of Shokouhieh in Qom Province in central of Iran was selected as a case study. Firstly, the quality and quantity of inputting wastewater into refinery and outputting wastewater effluent were measured on important parameters of pH, TDS, TSS, COD, BOD and wastewater temperature in refinery laboratory of industrial state of Qom Shokouhieh during 12 months from March 2012 to March 2013. Then analysis of chemical, biological and physical indicators of irrigation wastewater (effluent) and measurement of heavy metals were done in June 2012 and January 2013 according to the standards instruction for the water and wastewater treatment. Also, heavy metals, EC, pH, and Mg2+, Ca2+, Na+, k+ of soil of industrial estate of Qom Shokouhieh were studied. Then, Rapid Impact Assessment Method (RIAM) and Entropy Method were used to analyze the data. In Rapid Impact Assessment Method, socio-cultural, physicochemical, biological and economic environments get the highest negative impacts respectively. In Entropy Method after weighting the environmental factors, public health and other disease parameters with the weight of 0.147, soil chemical properties with the weight of 0.136, soil toxicity with the weight of 0.126 were allocated the first rate up to the third rate respectively. After comparing the results of these two methods with each other, the main limitation of using wastewater effluent of industrial estate of Qom Shokouhie in irrigation of green space is entering chemical pollutants (nitrate) into groundwater, salinity and toxicity of soil of industrial state and endangerment of workers and labors public health who work in industrial state of Qom Shokouhie (specially the labors who exposure directly with the wastewater effluent and labors work in refinery).

MAC Sub-Layer Analysis with Channel Estimation in Broadband Power Line Communication  [PDF]
Mohammad Khaled Andari, Seyed Ali Asghar Beheshti
Communications and Network (CN) , 2011, DOI: 10.4236/cn.2011.33017
Abstract: Broadband power line communication (BPLC) gained a lot of interest because of low cost and high performance communication network in access area. In this paper physical (PHY) layer and medium access control (MAC) sub-layer of BPLC are considered. Furthermore, effects of bit error rate (BER) are analyzed in MAC sub-layer. Powerful turbo convolutional code (TCC) and wideband orthogonal frequency division multiplexing (OFDM) are used in PHY layer. Carrier sense multiple access (CSMA) and virtual slot multiple access (VSMA) are taken into consideration in MAC sub-layer. Multilayered perceptrons neural network with backpropagation (BP) learning channel estimator algorithm compare to classic algorithm in for channel estimating. The simulation results show that the proposed neural network estimation decreases bit error rate then in MAC sub-layer throughput increases and access delay is decreased.
Production of γ-Al2O3 from Kaolin  [PDF]
Seyed Ali Hosseini, Aligholi Niaei, Dariush Salari
Open Journal of Physical Chemistry (OJPC) , 2011, DOI: 10.4236/ojpc.2011.12004
Abstract: The paper reports a process for synthesis of γ-alumina from kaolin. Kaolin was transformed to meta-kaolin by calcination at 800oC for 2h. γ-alumina powder was synthesized through extracting alumina from meta- kaolin via H2SO4 and meta-kaolin reactions and consequently precipitation in ethanol, which led to form the aluminum sulfate. The precipitated aluminum sulfate was dried and calcined at 900 oC for 2h, which resulted the formation of γ-alumina. The structure of γ-alumina was confirmed by XRD and FTIR and the mean particles size of γ-alumina was determined by SEM to be 0.5 - 0.9 µm. The study revealed the kaolin could be promising material for preparation of γ-alumina.
Larger Benthic Foraminifera from the Paleocene Sediments in the Chehel-Kaman Formation, North-Eastern Iran  [PDF]
Batool Rivandi, Seyed Mohammad Ali Moosavizadeh
Open Journal of Geology (OJG) , 2015, DOI: 10.4236/ojg.2015.54020
Abstract: This study is the micropaleontological investigation of the Chehel-Kaman Formation of Paleocene age from Kopet-Dagh basin, NE of Iran. Thirty three species of diagnostic benthic foraminifers belonging to generaMiscellanea,Operculina,Lockhartia,Rotalia,Akbarina,Pseudocuvillerina,Smoutina,Davisina,Idalina,Valvulina,Laffitteina
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