منابع مشابه
Biological assessment Jajrood River using the Macrobenthos community structure
The current study aims to investigate the community structure of macrobenthos to evaluate water quality of Jajrood River, Northeast Tehran, Iran. We conducted this study in 12 stations during the Spring and Winter seasons of 2014-2015. The sampling method of macrobenthos is use of the surber sampler device with three replications in each station. We measured physical and chemical parameters in ...
متن کاملStructure Elucidation and Biological Properties
mycelium and aerial hyphae. Spiral spore chains of 10 to 30 or more spores were observed at the tips of aerial hyphae on the various ISP agar media. Fragmentation of substrate mycelium, sclerotium and sporangia-like vesicles was not observed. The cultural characteristics of strain A-230 on various agar media are summarized in Table 1. The physiological properties and the utilization of carbohyd...
متن کاملUncovering structure in biological networks
The Erdös-Rényi model of a network is simple and possesses many explicit expressions for average and asymptotic properties, but it does not fit well to real-word networks. The vertices of these networks are often structured in prior unknown clusters (functionally related proteins or social communities) with different connectivity properties. We define a generalisation of the Erdös-Rényi model c...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1964
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.51.4.543