This paper presents an extension to SQL where end-users can specify their information quality constraints in the queries. Specifically, it shows how an SQL quality estimator module evaluates the quality profiles (i.e. accuracy and completeness) of queries based on the defined quality constraints. The quality estimations are numeric which would support the end-users in determining the value and ...

Extensive research has been devoted to economic production quantity (EPQ) problem. However, little atten-tion has been paid to problems where depreciation cost and process quality cost must be considered, simulta-neously. In this paper, we consider the economic production quantity model of minimizing the annual total cost subject to depreciation cost and process quality cost, where depreciation...

Extended Abstract. Inferences for spatial data are affected substantially by the spatial configuration of the network of sites where measurements are taken. Consider the following standard data-model framework for spatial data. Suppose a continuous, spatially-varying quantity, Z, is to be observed at a predetermined number, n, of points ....[ To Countinue Click here]

Background and objectives: Dracocephalum kotschyi is a plant which belongs to the Lamiaceae family and exists mostly in south-west Asian countries, including Iran. This plant is used as antispasmodic, analgesic and anti-inflammatory to treat rheumatoid diseases. Methods: In order to investigate the impact of the harvesting time changes on the quantity and quality of mono- and sesquiter...

The preceding papers of this series have dealt with the classification of the amino acids as essential or non-essential components of the food of man (l-5), the r61e of the caloric intake when amino acids serve as virtually the sole sources of nitrogen (6)) and the quantitative amino acid needs of human subjects as measured by the maintenance of nitrogen equilibrium (7-15). One additional topic...

Environmental philosophers spend considerable time drawing the divide between humans and the rest of nature. Some argue that humans and our actions are unnatural. Others allow that humans are natural, but maintain that humans are nevertheless distinct. The motivation for distinguishing humans from the rest of nature is the desire to determine what aspects of the environment should be preserved....