منابع مشابه
Wasted Food, Wasted Nutrients: Nutrient Loss from Wasted Food in the United States and Comparison to Gaps in Dietary Intake.
BACKGROUND Previous research has estimated that wasted food in the United States contains between 1,249 and 1,400 kcal per capita per day, but little is known about amounts of other nutrients embedded in the 31% to 40% of food that is wasted. OBJECTIVE This research aimed to calculate the nutritional value of food wasted at the retail and consumer levels in the US food supply, and contextuali...
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This work estimates the energy embedded in wasted food annually in the United States. We calculated the energy intensity of food production from agriculture, transportation, processing, food sales, storage, and preparation for 2007 as 8080 +/- 760 trillion BTU. In 1995 approximately 27% of edible food was wasted. Synthesizing these food loss figures with our estimate of energy consumption for d...
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Quantified Constraint Satisfaction Problems (QCSPs) are CSPs in which some variables are universally quantified. For each possible value of such variables, we have to find ways to set the remaining, existentially quantified, variables so that the constraints are all satisfied. Interest in this topic is increasing following recent advances in Quantified Boolean Formulae (QBFs), the analogous gen...
متن کاملDead space: the physiology of wasted ventilation.
An elevated physiological dead space, calculated from measurements of arterial CO2 and mixed expired CO2, has proven to be a useful clinical marker of prognosis both for patients with acute respiratory distress syndrome and for patients with severe heart failure. Although a frequently cited explanation for an elevated dead space measurement has been the development of alveolar regions receiving...
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IN MULTICELLULAR ORGANISMS, epithelial sheets function as a barrier between two compartments via their ability to form tight junctions (TJs), which regulate the diffusion of fluid, electrolytes, and small molecules through the paracellular pathway. Members of the relatively recently described Claudin (Cldn) family of integral membrane proteins, with at least 23 distinct members in mammals, are ...
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ژورنال
عنوان ژورنال: Nature
سال: 2013
ISSN: 0028-0836,1476-4687
DOI: 10.1038/493172a