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Mozafar Bagherzadeh Homaee,Ali Akbar Ehsanpour 한국원예학회 2016 Horticulture, Environment, and Biotechnology Vol.57 No.6
Under in vitro conditions, we examined the effects of silver nanoparticles (AgNPs) and silver (Ag) ions on potato (Solanum tuberosum L.) in terms of silver accumulation, production of reactive oxygen species (ROS), oxidative stress responses, and antioxidative defense systems. At all concentrations (except at 2 mg・L-1), the amount of Ag in the shoots and roots of Ag ion-treated plantlets was significantly higher than in plantlets treated with AgNPs. In both treatments, total ROS and superoxide anions were increased at concentrations greater than 2 mg・L-1. Damage caused by oxidative stress, such as ion leakage and cell death, was significantly higher in plantlets treated with AgNPs than those treated with Ag ions. Significant increases in the activities of superoxide dismutase, catalase, ascorbate peroxidase, and glutathione reductase (GR),were found in both AgNP-treated, and Ag ion-treated plantlets compared to the control. However, in AgNP-treated plantlets, GR activity was significantly decreased at 20 mg・L-1. A significant reduction in glutathione (GSH), ascorbate (ASA), and the ratios of GSH to oxidized glutathione (GSSG) and ASA to oxidized ascorbate (DHA)were observed in plantlets treated with both AgNPs and Ag ions at concentrations higher than 2 mg・L-1. Moreover, a greater decrease in GSH and ASA contents was seen in plantlets treated with AgNPs compared to those treated with Ag ions. The present study indicates that both AgNPs and Ag ion treatments impose oxidative stress on potato plantlets under in vitro conditions. Furthermore, based on plantlets’ responses to oxidative damage, the observed alteration in the activities of radical scavenging enzymes and the depletion of GSH and ASA, AgNPs seem to have higher toxicity than the equivalent mass of Ag ions.
Investigating Sexual Function and Affecting Factors in Women with Breast Cancer in Iran
Shandiz, Fatemeh Homaee,Karimi, Fatemeh Zahra,Rahimi, Nafiseh,Abdolahi, Mahboubeh,Anbaran, Zahra Khosravi,Ghasemi, Mina,Mazlom, Seyed Reza,Kheirabadi, Aghileh Nasaghchi Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.7
Background: Since the breast is strongly relevant to sexual desire, and physical and sexual attractiveness, the high prevalence of breast cancer (BC) in Iran and long-term survival of patients experiencing side effects means that measures to identify associated sexual problems are necessary. Therefore, this study was conducted to assess sexual function and affecting factors in women with BC. Materials and Methods: This cross-sectional study was performed on 94 women with BC, referred to Imam Reza (AS) Hospital, Mashhad, Iran, in 2014. The data were collected through demographic and clinical questionnaires and also a sexual function questionnaire and analyzed using SPSS version 16. Results: The total score of women's sexual function was about $24.3{\pm}4.41$. Of the total, 63 (71.3%) reported sexual dysfunction, for example reduced satisfaction or more pain. Age was the only significantly related factor. Conclusions: Breast cancer can adversely affect women's sexual function and decrease quality of life. Thus, taking measures to overcome women's sexual problems are necessary.
An Improved Multilayer Compacted Clay Liner by Adding Bentonite and Phosphate Compound to Sandy Soil
Amin Falamaki,Mahnaz Eskandari,Mehdi Homaee,Masoud Gerashi 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.10
Landfilling of municipal solid waste produces leachate containing heavy metals and different types of organic materials. On the other hand, it has been proven by researchers that dicalcium phosphate (DCP) is applicable for stabilizing of different heavy metals through the contaminated soil. This study aimed to investigate the effect of DCP on the permeability, cohesion and friction angle of a sand-bentonite liner. DCP was added by 0.2% of the dry weight of the base soil. Then, the permeability and shear strength were measured with water and synthetic leachate to assess the compatibility. Permeability coefficient of the sandy soil improved from about 10−4 cm/s to less than 10−7 cm/s. Results imply that DCP increases the compatibility of sand-bentonite mixture, and the leachate has less influence on this type of liner. By increasing the applied bentonite up to 6% in the base material liner, the internal friction angle reduces first and remains almost constant afterwards. For a certain vertical stress, adding 0.2% DCP to the sand-bentonite mixture increased the shear strain at the maximum shear strength and presents a positive effect. Therefore, a multilayer compacted clay liner is proposed that consists of a layer of DCP improved soil to increase the stabilization of heavy metals.