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RISS 인기검색어
- 검색키워드
- 저자 : Abdolreza Karimi (검색결과 4 건)
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Seyed Abdolreza Kazemeini,Ruhollah Naderi,Hadis Karimi Aliabadi 한국생태학회 2013 Journal of Ecology and Environment Vol.36 No.3
A Two-year field experiment was carried out in 2009 and 2010 to evaluate the effects of different densities of wild oat and nitrogen (N) rates on oilseed rape yield and yield components. Experimental design was split plot with three replications. Increased nitrogen rates up to 150 kg N/ha caused an increase in oilseed rape grain yield in weed-free plots (4.26 t/ha;1t = 103 kg), while even at the lowest density of wild oat (15 plants/m2), increasing N fertilizer only up to 50 kg/ha led to a significant increase in grain yield. Wild oat growth was favored by high levels of N. Intraspecific competition reduced biomass, 100-seed weight and number of tillers of wild oat. Both lower N rate and intraspecific competition had negative effect on wild oat growth but the weed was still able to produce a considerable number of tillers and vigorous seeds. It showed that wild oat possess a notable adaptive plasticity and can allocate a greater proportion of its resource toward reproductive organs even under resource shortage conditions and, thus, it may increase the competitive ability of the weed over the crop.Our results suggest that effective weed management should be done to prevent wild oat seed production in crops preceding oilseed rape as well as to control the weed at early season in oilseed rape fields.
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Masoud Karimi,Abdolreza Mohammadnia,Mohammad Amin Amini,Azar Ghavimi Shamekh,Elahe Derakhshanfar,Farzaneh Hosseini 전남대학교 의과학연구소 2023 전남의대학술지 Vol.59 No.3
Gastric Cancer (GC) is one of the most dangerous malignancies in the world. This study aims to evaluate the relationship between miR-146a and miR-155 in patients with H. pylori infections with GC compared to H. pylori-infected patients and healthy subjects. Forty patients with H. pylori and GC positive diagnoses and 40 patients with H. pylori positive and GC negative diagnoses, and 40 healthy persons were selected. The expression of miR-146a and miR-155 genes in the whole blood was examined using qRT-PCR. Moreover, ROC curves were drawn to represent the sensitivity and specificity of miR-146a and miR-155 expression as biomarkers. The results showed the expression of miR-146a and miR-155 in the whole blood of patients with H. pylori and GC positive diagnoses are significantly higher than in healthy individuals and are non-significantly enhanced compared to H. pylori positive and GC negative. Also, the results stated miR-146a and miR-155 expression in the whole blood of patients who are H. pylori positive and GC negative are significantly increased compared to healthy individuals. Furthermore, the ROC curve analysis of miR-146a and miR-155 RNA level demonstrated the two miRNAs have an appropriate sensitivity and specificity for diagnostic goals. In conclusion, H. pylori infection may increase the expression of miR-146a and miR-155 in patients with H. pylori and GC positive diagnoses, which can be effective in the curbing the progression of GC. For this reason, up-regulation of miR-146a and miR-155 along with H. pylori infection might contribute to the pathogenesis of GC, and also can be suggested as biomarkers for GC diagnosis and treatment.
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Kazemeini, Seyed Abdolreza,Naderi, Ruhollah,Aliabadi, Hadis Karimi The Ecological Society of Korea 2013 Journal of Ecology and Environment Vol.36 No.3
A Two-year field experiment was carried out in 2009 and 2010 to evaluate the effects of different densities of wild oat and nitrogen (N) rates on oilseed rape yield and yield components. Experimental design was split plot with three replications. Increased nitrogen rates up to 150 kg N/ha caused an increase in oilseed rape grain yield in weed-free plots (4.26 t/ha; 1t = $10^3kg$), while even at the lowest density of wild oat (15 $plants/m^2$), increasing N fertilizer only up to 50 kg/ha led to a significant increase in grain yield. Wild oat growth was favored by high levels of N. Intraspecific competition reduced biomass, 100-seed weight and number of tillers of wild oat. Both lower N rate and intraspecific competition had negative effect on wild oat growth but the weed was still able to produce a considerable number of tillers and vigorous seeds. It showed that wild oat possess a notable adaptive plasticity and can allocate a greater proportion of its resource toward reproductive organs even under resource shortage conditions and, thus, it may increase the competitive ability of the weed over the crop.Our results suggest that effective weed management should be done to prevent wild oat seed production in crops preceding oilseed rape as well as to control the weed at early season in oilseed rape fields.
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Sina Soroush,Niyaz Mohammad Mahmoodi,Bayramali Mohammadnezhad,Abdolreza Karimi 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.9
Activated carbon (AC), one of the most common adsorbents, and metal-organic framework (MOF), aninteresting class of materials, were used for synthesizing AC/MOF composite by the solvothermal method. The strategydesigned in this paper is to improve the removal and adsorption performance of AC for dye. MIL-53(Fe) was synthesizedon the commercial activated carbon (CAC) to prepare CAC/MIL-53(Fe) composite. Direct Red 23 (DR23)anionic dye was used as a model contaminant. FT-IR, XRD, SEM, and EDX analyses were applied to study the structureand characteristics of CAC/MIL-53(Fe). The parameters (the solution pH, amount of adsorbent dosage, initial dyeconcentration, and contact time) affecting the dye removal efficiency were investigated. The percentage of dye removal(DR23) under optimal conditions by commercial activated carbon and CAC/MIL-53(Fe) was 50% and 99.9%, respectively. The maximal capacity of adsorption was also raised from 50 to 100mg/g. The adsorption isotherm and kineticsfollowed the Langmuir and pseudo-second-order models, respectively
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