The Eco RI-fragments of bacteriophage T5 DNA were mapped using a technique which involves primarily length measurements of molecules observed in the electron microscope. Since Eco RI cleavage generates termini with 4-nucleotide long cohesive ends, fragments of complete and partial Eco RI digests were covalently circularized with DNA ligase at dilute DNA concentrations before measuring relative ...

The paper combines original concepts about eco-energetic systems, in a transdisciplinary sustainable context. Firstly, it introduces the concept of M.E.N. (Mega-Eco-Nega-Watt), the eco-energetic paradigm based on three different but complementary ecological economic spaces: the Megawatt as needed energy, the Ecowatt as ecological energy, and the Negawatt as preserved energy. The paper also deal...

eco village design is a new field of knowledge still under development. it will be the physical manifestation of the unfolding of the ecovillage dream held by so many. it is generally agreed that concept of sustainability should play an increasing role in future urban development world-wide. in order to ensure ecological sustainability, cities around the world have to decrease their environment...

Traditional traffic control and transportation management systems mainly focus on the relief of congestions and the enhancement of traffic safety. It is proven however that, the transportation sector is one of the main sources with significant impacts on the environment, the entire climate, the public health, and the entire ecological system [1-4], which is also an increasing general public con...

There is a gap in the geographical/geopolitical literature about the process that motivates humans to conquer a boundless, timeless and invaluable wilderness in the name of plural ecologies to serve their own political interests in control and territory building by means of ‘green gerrymandering’. The ecological frontier (or eco-frontier), a neologism produced by a contemporary greened civil so...

Eco-efficiency has emerged as a management response to waste issues associated with current production processes. Despite the popularity of the term in both business and government circles, limited attention has been paid to measuring and reporting eco-efficiency to government policy makers. Aggregate measures of eco-efficiency are needed, to complement existing measures and to help highlight i...

.........................................................................................................................2 Intoduction .....................................................................................................................3 An Overwiev of Eco-genetic Modeling ........................................................................6 Process-based description of demo...

Land use/land cover change has been attracting increasing attention in the field of global environmental change research because of its role in the social and ecological environment. To explore the ecological risk characteristics of land use change in the Poyang Lake Eco-economic Zone of China, an eco-risk index was established in this study by the combination of a landscape disturbance index w...

The bio-thermodynamic structures of a mixed native species plantation, a conifer plantation and an Acacia mangium plantation in Southern China were quantified over a period of 15 years based on eco-exergy methods. The efficiencies of structural development and maintenance were quantified through an integrated application of eco-exergy and emergy methods. The results showed that the storage of e...