Showing 4 results for Ahamdi
Volume 4, Issue 3 (9-2018)
Abstract
The family Neanuridae belonging to order Poduromorpha, class Collembola includes terrestrial animals which play vital roles in decomposition and nutrient cycle in soil. Up to now, the fauna of this family has not been investigated in various areas of Golestan national Park (Hyrcanian forests). In order to identifying species of the class Collembola in this park, numerous samplings were carried out from soil, humus, and moss in 2015 and 2016. Then, the Collembola specimens were separated by using Berlese Funnel, stored in 75-85 percent ethyl alcohol and identified according to valid identification keys. Meanwhile, the species Friesea afurcata Tullberg, 1869) from the Neanuridae family is reported for the first time in Iran and Golestan province.
S.m. Hosseini, E. Ahamdi, Y.s. Borghei,
Volume 10, Issue 2 (Spring 2019)
Abstract
MicroRNAs (miRNAs) are single-stranded RNAs that play key roles in cellular disorders or disease diagnosis. Thus the method for sensitive and selective detection of miRNAs is imperative to clinical diagnosis. Recently it has witnessed the rapid development of Metal Nanocluster-Based fluorescent probe design and its successful applications in detecting various targets, such as ssDNA, miRNA and Metal Ions. The DNA scaffolded Metal nanoclusters display excellent photostability, subnanometer size, nontoxicity, biocompatibility and thus well-suited as a fluorescent probe for biochemical applications. Here we develop a DNA/Metal Nanoclusters (MNCs)-based turn-on fluorescence method in the presence of target microRNAs as a potential biomarker for screening cancer. DNA scaffold Metal nanocluster was fabricated by a one-pot wet-chemical strategy and characterized by TEM and DLS techniques. This nanobisensor had a detection limit of 0.64pM. Conclusion, this nanobiosensors could become a potential alternative tools for detection of miRNAs in biological samples and useful in biomedical research and early clinical diagnosis.
Volume 14, Issue 1 (1-2012)
Abstract
An experiment was conducted to evaluate the extracted (ES) and mechanical (MS) soybean meals two levels 25% and 35% in broiler chicken feeding. Three hundred and fifty two one-day-old unsexed Lohman chickens were placed in four treatments by 4 replicates and 22 chickens in each in a 2×2 factorial arrangement. Feed intake was increased significantly in starter period by ES in comparison with MS. Feed conversion ratio was significantly improved when 25% of ES was replaced by fish meal compared with 35% of ES in starter period. Body weight was significantly higher by 25% ES replaced by fish meal in comparison with 25 and 35% MS in grower period. Metabolizable energy was declined in all options (AME, AMEn, TME and TMEn) in MS than ES. Significant depressing in jejunum length was observed by 35% in the two types of soybean meal compared with 25% mechanical soybean meal replaced by fish meal in 14 days. In more details, villous length was lower by mechanical soybean meal in comparison with ES. Alkaline phosphatase enzyme activity was significantly higher in 35% ES in comparison with 25% ES replaced by fish meal and 35% MS in 14 days. In contrast, alkaline phosphatase enzyme activity was reduced remarkably by 35% mechanical soybean meal compared with 25% extracted soybean meal replaced by fish meal in starter period. Urease activity in extracted soybean meal (0.07) was lower than mechanical soybean meal (0.22). The results of this study have shown better performance by extracted soybean meal compared with mechanical soybean meal. In spite of this, less expensively processed mechanical soybean meal (MS) at 25% level replaced by fish meal could be more economical in broiler chicken feeding.
Volume 15, Issue 3 (Fall 2011)
Abstract
مبانی[u1] و سازوکارهای پیشگیری دولتی از حوادث طبیعی
حسن بادینی1* ، خلیل احمدی2
Lia bility of government for prevention of natural disasters is one of the complicated matters of law. Beside of the recognition of this liability for government, there is a serious doubt about attribution of this liability to the government. This doubtful problem is related with other sciences and arts. This paper aimed to discuss the economic and legal foundations of this kind of liability. This survey is to prove the relationship between the liability of government and sustainable development, because that liability will result to reduction of losses deriving from natural disasters by obliging the government to provide preventive measures and standards.
