Merging is a common way to compose both crosscutting and noncrosscutting models. In this paper, we argue that merge can be defined more generically as an operator at the meta-modelling level. By describing merge at this level, a merge operator can be used to compose models based on meta-models other than UML. There are various merge variants and we concede that a full unification of all merge s...

We introduce new stable, natural merge sort algorithms, called 2-merge sort and α-merge sort. We prove upper and lower bounds for several merge sort algorithms, including Timsort, Shiver’s sort, α-stack sorts, and our new 2-merge and α-merge sorts. The upper and lower bounds have the forms c · n logm and c · n logn for inputs of length n comprising m runs. For Timsort, we prove a lower bound of...

background: clinical training is an important part of the training courses of medicine during which students learn how to face the patients, diagnose the diseases and treat the patients. alongside clinical apprenticeship, related theoretical courses are presented so that the most training possible is covered. in the past the theoretical courses of pediatrics ward of birjand university of medica...