abo and rh blood groups were studied in a total of 1680 patients with cardiovascular diseases (congenital n=547, valvular n=887 and coronary n=246). statistical analysis (x2and woolf’s test) showed significant excess of b/o in mitral valve, aortic valve total valvular diseases and heart diseases generally, also an increase of a/o in myocardial infarction. significant increase of the frequency o...

Let $G$ be a graph with vertex set $V(G)$. For any integer $kge 1$, a signed (total) $k$-dominating functionis a function $f: V(G) rightarrow { -1, 1}$ satisfying $sum_{xin N[v]}f(x)ge k$ ($sum_{xin N(v)}f(x)ge k$)for every $vin V(G)$, where $N(v)$ is the neighborhood of $v$ and $N[v]=N(v)cup{v}$. The minimum of the values$sum_{vin V(G)}f(v)$, taken over all signed (total) $k$-dominating functi...

The maize crop is an important commodity other than rice in Indonesia. Maize production reached 30 million tons 2018. Efforts that can be made to increase on Ultisols Indonesia by the application of biochar husk and compost. Biochar has a high affinity for nutrients does not experience decay soil decades, while compost improve chemical properties increasing nutrient content. purpose this study ...

The present study was conducted on buffaloes that were non-cycling (heifers, n=32; lactating, n=13) or cycling (heifers, n=11; lactating, n=27) and in the buffaloes that conceived (heifers; n=11; lactating, n=23)or failed to conceive (heifers, n=32; lactating, n=17) subsequent to artificial insemination. Plasma samples were analyzed for thyroid stimulating hormone, thyroid hormones, glucose, to...

The total synthesis of sculponeatin N, a bioactive polycyclic diterpene isolated from Isodon sculponeatus, is reported. Key features of the synthesis include diastereoselective Nazarov and ring-closing metathesis reactions, and a highly efficient formation of the bicyclo[3.2.1]octane ring system by a reductive radical cyclization.

A set S V is a dominating set of a graph G = (V;E) if each vertex in V is either in S or is adjacent to a vertex in S. A vertex is said to dominate itself and all its neighbors. The domination number (G) is the minimum cardinality of a dominating set of G. In terms of a chess board problem, let Xn be the graph for chess pieceX on the square of side n. Thus, (Xn) is the domination number for che...