منابع مشابه
Hauling tail
Neurons on life support N eurons are high maintenance, requiring a continuous supply of nurturing molecules. A shortage of one of these molecules might underlie one of the most common causes of dementia, Van Damme et al. report. Unlike Alzheimer’s disease, frontotemporal lobe dementia (FTLD) usually strikes people who are under the age of 65. Their fatal illness devastates the brain’s frontal l...
متن کاملReuse of Electric Motors in Consumer Products Design and Analysis of an Electronic Data Log
Product takeback calls for sound strategies of product recovery management. One such strategy is the reuse of the components of a product. There are consumer products such as power tools whose most expensive component, the electric motor, offers potential for reuse. Empirical evidence reveals that the lifetime of a motor often exceeds the lifetime of the product using it. This article focuses o...
متن کاملMitigating Seabird Bycatch during Hauling by Pelagic Longline Vessels
Bycatch in longline fisheries threatens the viability of some seabird populations. The Hawaii longline swordfish fishery reduced seabird captures by an order of magnitude primarily through mitigating bycatch during setting. Now, 75% of captures occur during hauling. We fit observer data to a generalized additive regression model with mixed effects to determine the significance of the effect of ...
متن کاملInefficient trade patterns: Excessive trade, cross-hauling and dumping
I study an example of a competitive environment in which trade occurs in a sequential manner. In this example, a country with a stable demand may suffer from trade with a country with unstable demand, there may be too much trade, a country may import and export the same good in the same period (cross-hauling) and dumping may occur. The timing of delivery is important. When delivery occurs befor...
متن کاملImitating chemical motors with optimal information motors.
To induce transport, detailed balance must be broken. A common mechanism is to bias the dynamics with a thermodynamic fuel, such as chemical energy. An intriguing, alternative strategy is for a Maxwell demon to effect the bias using feedback. We demonstrate that these two different mechanisms lead to distinct thermodynamics by contrasting a chemical motor and information motor with identical dy...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1903
ISSN: 0036-8733
DOI: 10.1038/scientificamerican11141903-23296bsupp