A generalization of bags is proposed and fundamental operations are described. That is, a real-valued bag is proposed which is a straightforward generalization of the traditional bags, but is necessary for complementation, and s-norm and t-norm operations. We mainly describe how complementation and s-norms are related. As a result a duality theorem between s-norm and t-norm is obtained. R-bag r...

W i n t r o d u c e d a n e w t y p e o f blood bags from two different manufacturers at our center with diversion pouch and sampling device. Stripping of tube segments was also introduced to have anticoagulated blood in satellite tube. During component preparation, we observed 11 blood bags were showing pinkish to red colored plasma immediately after first centrifugation which was suggestive o...

Usual graph classes, such as complete graphs, paths, cycles and stars, frequently appear as extremal graphs in graph theory problems. Here we want to turn the reader’s attention to two novel, simply defined, graph classes that appear as extremal graphs in several graph theory problems. We call them bags and bugs. As examples of problems where bags and bugs appear, we show that balanced bugs max...

BACKGROUND Airway management out of the operating room in many major institutions is often performed by teams, requiring airway providers to carry their own materials at all times. The bag containing airway equipment must be light enough to be carried easily, while containing sufficient equipment to manage airways in various settings. Additionally, transport of the bag throughout the hospital r...