We introduce the notion of uniform number of a graph. The  uniform number of a connected graph $G$ is the least cardinality of a nonempty subset $M$ of the vertex set of $G$ for which the function $f_M: M^crightarrow mathcal{P}(X) - {emptyset}$ defined as $f_M(x) = {D(x, y): y in M}$ is a constant function, where $D(x, y)$ is the detour distance between $x$ and $y$ in $G$ and $mathcal{P}(X)$ ...

ABSTRACT Objective: to analyze pediatric patient safety in the administration of blood components. Method: a documentary and retrospective study, developed at hospital Brazilian Midwest region. Data collection took place through medical records 234 transfusions were identified, performed 90 patients aged from zero twelve years old, hospitalized between July December 2020. An instrument based on...

in this paper, we introduce a function in order to measure the distancebetween two order intervals of fuzzy numbers, and show that this function isa metric. we investigate some properties of this metric, and finally presentan application. we think that this study could provide a more generalframework for researchers studying on interval analysis, fuzzy analysis andfuzzy decision making.

introduction: aim of current study is determination of optimal number of nurses in the emergency department of shiraz ali asghar hospital. method: current study is an applied study and belongs to operational research (or) studies. the population has been studied in this research, includes records of referred patients to the emergency department of hospital in 2008. sampling was performed in the...

in this paper we introduce the root of a fuzzy number, and we present aniterative method to nd it, numerically. we present an algorithm to generatea sequence that can be converged to n-th root of a fuzzy number.

Nowadays, in addition to quality aspects, social and environmental issues are also a source of competitive advantage, as result changing socio-economic conditions observed trends. The purpose the study was create model for improving control line with concept sustainable development. captures microfoundational approach, allows identifying capability idea proposed method is based on analyses char...

background: citation metrics and total publications in a field has become the gold standard for rating researchers and viability of a field. hence, stimulating demand for citation has led to a search for useful strategies to improve performance metric index. meanwhile, title, abstract and morphologic qualities of the articles attract researchers to scientific publications. yet, there is relativ...

reliability wiener number is a modification of the original wiener number in which probabilities are assigned to edges yielding a natural model in which there are some (or all) bonds in the molecule that are not static. various probabilities naturally allow modelling different types of chemical bonds because chemical bonds are of different types and it is well-known that under certain condition...