Circular economy as an advanced development mode for harmonizing the problems among resource, environment and economy, is destined to be the choice for keeping on developing. It is the sustainable development strategy which based on reducing, reusing, recycling principle and the recommendation of circular economy was proposed to build resource-efficient and environmental-friendly society. How t...

Biological diversity, also known as biodiversity, is an important criterion for measuring the value of an ecosystem. As biodiversity is closely related to human welfare and quality of life, many efforts to restore and maintain the biodiversity of species have been made by government agencies and non-governmental organizations, thereby drawing a substantial amount of international attention. In ...

We derive a new and user friendly simple analytic approximation for determining the effect of intergalactic absorption on the γ-ray spectra of TeV blazars the energy range 0.2 TeV < Eγ < 2 TeV and the redshift range 0.05 < z < 0.4. In these ranges, the form of the absorption coefficient τ(Eγ) is approximately logarithmic. The effect of this energy dependence is to steepen intrinsic source spect...

Visual impression may di er with each person. User-friendly interfaces for image database systems require special retrieval methods which can adapt to the visual impression of each user. This paper describes algorithms for learning personal visual impression on visual objects. The algorithms are based on multivariate data analysis methods. These algorithms provide a model on visual perception p...

biofabrication by using fungi is an exciting recent interest to develop an eco-friendly production of metallic nanoparticles (nps) for pharmaceutical applications. this study aimed to synthesize and characterize gold (au) and silver (ag) nps by using penicillium simplisimum. the fungus was grown in fluid czapek dox broth on shaker at 28 ºc and 200 rpm for ten days. then the supernatant was sepa...

There is a relatively new functional status questionnaire, the Functional Rating Index (FRI), (Feise and Menke 2001) which overcomes these barriers to a large extent, yet has been largely unnoticed. In effect it is a hybrid instrument of the ODQ and NDI, consisting of 10 sections, with each item scored on a five-point scale. The key feature of the FRI is that it is a more clinician-friendly ins...