Ultrasound time-of-flight methods employing counter-propagating ultrasonic pulses are utilized for the direct measurement of circulation in vortical flows. Two schemes are described here which involve either a single straight path or a closed path. Both techniques are shown to result in time differences, between the counter-propagating pulses around the path, linearly proportional to the circul...

OBJECTIVE To assess the prevalence of nutritional risk in surgical patients of a teaching hospital and its associated factors. METHODS A cross-sectional study with secondary data of surgical ward patients of the Hospital Escola da Universidade Federal de Pelotas, from April to October, 2010. Patients were evaluated up to 36 hours after admission using the Malnutrition Screening Tool. RESULT...

Database transformations arise in many different settings including database integration, evolution of database systems, and implementing user views and data entry tools. This paper surveys approaches that have been taken to problems in these settings, assesses their strengths and weaknesses, and develops require ments on a formal model for specifying and implementing database transformations. ...

foodstuffs analysis is very important due to population growth and increasing consumer demand for safety and nutritional excellence. the analysis of different compounds in foodstuffs is so difficult without using sample preparation techniques. traditional techniques require large amounts of toxic organic solvents. as a result, they are not only expensive but also environmentally unfriendly and ...

Ample evidence now exists to show that the nutritional anawmia, or milk anaemia, of babies bears a very close resemblance to the milk aneemia of rats, but whereas young rats in whom anwemia is induced by prolonged milk feeding suffer from a deficiency of copper as well as of iron, and require both copper and iron for their cure4, it is not yet proven that copper deficiency plays any part in the...

Ample evidence now exists to show that the nutritional anawmia, or milk anaemia, of babies bears a very close resemblance to the milk aneemia of rats, but whereas young rats in whom anwemia is induced by prolonged milk feeding suffer from a deficiency of copper as well as of iron, and require both copper and iron for their cure4, it is not yet proven that copper deficiency plays any part in the...

In this chapter, we discuss two case studies that compared and contrasted the use of barcode scanning, voice recording, and patient self reporting as a means to monitor the nutritional intake of a chronically ill population. In the first study, we found that participants preferred unstructured voice recordings rather than barcode scanning. Since unstructured voice recordings require costly tran...

Elderly nursing home patients may suffer from inadequate oral nutritional intake for a variety of reasons. In some of them, nutritional status cannot be maintained without the use of enteral feeding. Nasogastric tube feeding is associated with significant patient discomfort, and may lead to significant complications. Thus, in those who require long-term enteral tube feeding, a gastrostomy tube ...