Since the exact quantification of corresponding costs is still under discussion in the literature, we chose the externalities that have received the most attention, namely emission, noise and congestion.
The ever increasing concern of global climate change has brought intensive attention to emission reduction, which has become one of the most important issues for the sustainable development of social well-being [1].
Two such techniques that have garnered much attention, stimulated emission depletion (STED) and ground-state depletion (GSD) microscopy, modulate between the transition states of the fluorophores to optically narrow the excitation point-spread-function (PSF) [ 7, 8].
Yet, for some reason, agriculture has been largely able to avoid the attention of emissions reductions policies.
The public's new attention to emissions and fuel economy is coinciding with a realization in automakers' executive suites that the business of green can be good business.
Following Hong Kong's lead, a number of other ports in China, most notably Shenzhen, are beginning to pay attention to emissions from ships and port activities.
Nobre, A. C. et al. Functional localization of the system for visuospatial attention using positron emission tomography.
Pardo, J. V., Fox, P. T. & Raichle, M. E. Localization of a human system for sustained attention by positron emission tomography.
This controversy deserves attention because positron emission tomography, known as PET scans, are becoming available across the country, and proposed guidelines for their use have just been published by the Alzheimer's Association and the Society of Nuclear Medicine and Molecular Imaging.
The DfT said that because plug-in hybrid models, such as the the Mitsubishi Outlander, were now established and popular among consumers, it was focusing its attention on zero emission models such as the Nissan Leaf and BMW i3.
