Requirements engineering (RE) is often seen as an essential facet in software development. It is a vital process before each project starts. In the context of systems engineering, an understanding and application of systems theory and practice is also relevant to RE. The contexts in which RE takes place habitually involve human activities. Therefore, RE needs to be sensitive to how people perce...

BACKGROUND Celiac Disease occurs at a 5-10 fold greater prevalence in patients with type-1 diabetes (T1D), despite this increased risk, there is limited objective evidence regarding the impact of a Gluten-Free Diet (GFD) in the large proportion of asymptomatic (30-70%) patients with both autoimmune diseases. Given the requirements and intricacies inherent to each condition, we describe the rati...

Relatively little is known about the indispensable amino acid (AA) requirements of horses and how they are affected by physiological status. In the 2007 Nutrient Requirements of Horses, only lysine requirements are given and these requirements were not measured, but were extrapolated from the crude protein requirements. Because horses have a requirement for each indispensable AA rather than cru...

Nutrition is considered to be one of the key components in the development of most chronic degenerative diseases so that medical nutrition therapy has become important in their primary prevention. Food-based dietary guidelines provide the following values: the Lowest Threshold Intake (LTI), the Average Requirement (AR) and the Population Reference Intake (PRI) or Recommended Dietary Allowance (...

The measurement of habitual food and energy intake in man is one of the hardest tasks a physiologist can undertake. There are three basic problems: firstly, the accurate determination of the subject’s customary intake; secondly, the conversion of this information to energy and nutrient intakes; and, thirdly, the length of time food intake should be measured before the information obtained can b...