Energy Insecurity: Problems & Remedial Actions [Guest Editorial]

Energy harvesting communications: Part III [Guest Editorial]

as a promising approach to enable self-sufficient and self-sustaining operation for devices in energy-constrained networks by scavenging energy from the ambient environment to power up devices. In particular, for wireless sensor networks, if the sensors, which spread throughout homes or factories, in buildings or even outdoors, are powered by energy harvesting, there are no batteries to replace...

Guest Editorial Energy-Efficiency in Optical Networks

THE increasing concern for environmental and cost issues has made energy efficiency in telecom networks an important theme. According to a recent report [1], today’s networks are wasting a lot of energy by consuming 10,000 times more energy than what is really needed. The Internet currently consumes about 0.4% of the total electricity in broadband-enabled countries and is foreseen to quickly re...

Food Insecurity and Chronic Diseases: The Editorial

Guest editorial: tackling the problems of hematopoietic stem cell aging.

Tissue degeneration is a hallmark for the aging of an organism. With the capabilities of self-renewal and differentiation, stem cells are largely responsible for tissue maintenance and regeneration. Therefore, stem cells must be directly involved in organismal aging. In fact, many types of adult stem cells have been reported to be associated with tissue degeneration in a variety of species incl...

Special Section Guest Editorial

In recent years there has been a strong trend to enhance traditional research techniques in neuroscience with opticalbased techniques. The trend is evident on every level of neuroscience research, spatially spanning submicron to centimeters and temporally spanning submillisecond to seconds. Optical techniques are attractive because they enable researchers to study brain function from the smalle...