Stroke and heart disease are among the most com-mon outcomes of hypertension. Each year, disease, stroke, other cardiovascular disorders claim lives more than 877,500 people in United States, making them first fifth leading causes death, so being able to pre- dict early helps save lives. A lot research has been done reach this goal. Machine learning models mostly used for purpose. For time stud...

A bisection of an n-vertex graph is a partition of its vertices into two sets S and T , each of size n/2. The bisection cost is the number of edges connecting the two sets. In directed graphs, the cost is the number of arcs going from S to T . Finding a minimum cost bisection is NP-hard for both undirected and directed graphs. For the undirected case, an approximation of ratio O(log n) is known...

We discuss the relationship between recent proposals of ‘atom diodes’ or oneway barriers for ultracold atoms and a Maxwell demon valve: in particular the way in which these proposals make use of dissipation via a one-photon spontaneous emission and avoid violation of the second law.

Through a sampling survey of the results physical fitness test students Guilin Institute Aerospace Industry in 2018, using analysis variance research method, five variable indicators surveyed were analyzed, and changes during three years university studied. The show that college, has been increasing year by year, but growth rate declining, difference is mainly due to their own high body mass in...