the emph{harary index} $h(g)$ of a connected graph $g$ is defined as $h(g)=sum_{u,vin v(g)}frac{1}{d_g(u,v)}$ where $d_g(u,v)$ is the distance between vertices $u$ and $v$ of $g$. the steiner distance in a graph, introduced by chartrand et al. in 1989, is a natural generalization of the concept of classical graph distance. for a connected graph $g$ of order at least $2$ and $ssubseteq v(g)$, th...

dna barcoding based on a standardized region of 648 base pairs of mitochondrial dnasequences from cytochrome c oxidase 1 (cox1) is proposed for animal species identification.recent studies suggested that dna barcoding has been effective for identifying 94% of birdspecies. the proposed threshold of 10 times the average intraspecific variation could be used forthe identification and delimitation ...

Globally, Rural areas have more stunted children (40%) than urban (33%). In contrast, in Indonesia, 2010-2013, the prevalence of stunting rural was higher at 40 0% and by 31.5%. This type quantitative research uses Cross Sectional approach with aim study to compare risk factors for Lampung City 2022. The subjects are mothers toddlers 30 rural, town. analysis this used independent t-test, Mann-W...

BACKGROUND After cesarean delivery, analgesia is often incomplete and a multimodal approach to analgesia is necessary. Transverse abdominal plane (TAP) block has been advocated in this setting, yet no systematic description of the ultrasound anatomy in pregnant women exists in the literature. Therefore, we aimed to describe the sonographical features of relevant structures in pregnant women bef...

This study is based upon the examination of 2,700 newborn boys. The original purpose was to find out how often the testicle was undescended at birth and what happened in such cases during the first few months of life. It is not difficult to feel the testicle of a newborn boy if it be lying outside the external inguinal ring. Examination may only become uncertain, and at times impossible, when t...

OBJECTIVE To evaluate the association between proximity to a health center and early childhood mortality in Madagascar, and to assess the influence of household wealth, maternal educational attainment, and maternal health on the effects of distance. METHODS From birth records of subjects in the Demographic and Health Survey, we identified 12565 singleton births from January 2004 to August 200...

distance-balanced graphs are introduced as graphs in which every edge uv has the followingproperty: the number of vertices closer to u than to v is equal to the number of vertices closerto v than to u. basic properties of these graphs are obtained. in this paper, we study theconditions under which some graph operations produce a distance-balanced graph.