نتایج جستجو برای: rare and valuable resources
تعداد نتایج: 16892617 فیلتر نتایج به سال:
Mushrooms grow in a very wide range of ecological conditions, however their growth vary in different conditions. Mushrooms are a valuable source for antibiotics and they are known as drugs in traditional medicine. Identification and characterization of mushrooms is the first step of their exploitations in drug industry. There are many poisonous species of mushrooms, so their identification is e...
the research conducted on “domestic violence on women” have paid little attention to the fact that this phenomenon is resulted from the disruption in healthy social and family relationships as well as lack of available valuable resources for women. therefore, this study attempts not only to contemplate on such elements as the shape of relationships in directed family, manner of gender socializa...
In this paper, five species of the agaric fungi viz., Entoloma griseoluridum, E. niphoides, Limacella ochraceolutea, Mycena clavicularisand M. acicula belonging to family Amanitaceae, Entolomataceae and Mycenaceae, are reported for the first time for Iranian mycobiota. Limacella ochraceolutea is the first species of fungi belonging to genus Limacella in Iran.Because L. ochraceolutea is a rare s...
Rarity has important implications with respect to information technology (IT) resources, enabling firms to develop competitive advantage. We study the effect of firms’ possession of rare technology (IT) resources in the formation of alliances and its effect on firm performance. Using text-mining techniques, we measure the rarity of the 488 technology keywords present in a text corpus from 81,26...
protecting the environment is becoming one of the most important concerns of the developed and developing countries. reclamation of msw landfills, which are sources of many pollutants including leachate and greenhouse gases, would be very valuable in saving the resources and reducing the pollution scale. in the current article the potential for use of reclaimed waste in rdf production has been ...
The demand for novel, cost-effective, and environmentally friendly rare earth element yttrium (REY) sources is essential. recovery of REY other valuable components from coal fly ash (CFA) may result in securing alternative resources, decreased disposal costs, environmental protection, all which have positive effects. However, research on the CFA underway, it still necessary to assess its viabil...
Purpose: The main purpose of this study is to examine the ways, resources, and objectives of obtaining health related information by members of four Qazvin public libraries (affiliated with the Public Libraries Foundation) in December 2011. For the purpose of data analysis, descriptive statistics were used. Findings: Almost all members of Qazvin public libraries have experienced the need for h...
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