The study of cardiovascular disease has increased both in its scope and pace during the last decade. Included amongst the circumstances which have contributed to these changes are the recruitment to the specialty of younger workers on leaving the Fighting Services, the provision of greater facilities for research work, and the addition of newer instruments and equipment in the investigation of ...

The letter written by Heinze (1) has serious shortcomings. Heinze wrote that There is not a single study of healthy men from any fertility center or sperm bank that has reported a decline in sperm counts in the United States. This is not true. A number of such studies exist. Leto and Frensilli (2) documented a decline in sperm counts in potential sperm donors from all over the United States in ...

The difference between two consecutive prime numbers is called the distance between primes. We study the statistical properties of the distances, and also of their increments (the difference between two consecutive distances). Using a sequence comprising the first Np = 5× 10 7 prime numbers, we obtain an empirical form for the symbol entropy for the set of distances as a function of sequence le...

Let S be a topological semigroup acting on a topological space X. We develop the theory of (weakly) almost periodic functions on X, with respect to S, and form the (weakly) almost periodic compactifications of X and S, with respect to each other. We then consider the notion of an action of Son a Banach space, and on its dual, and after defining S-invariant means for such a space, we give a...

 Based on some stationary periodic solutions and stationary soliton solutions, one studies the general solution for the relative lax system, and a number of exact solutions to the Korteweg-de Vries (KdV) equation are first constructed by the known Darboux transformation, these solutions include double and triple singular periodic solutions as well as singular soliton solutions whose amplitude d...

let $mathcal{a}$ be a banach algebra with bai and $e$ be an introverted subspace of $mathcal{a'}$.in this paper we study the quotient arens regularity of $mathcal{a}$ with respect to $e$ and prove that the group algebra $l^1(g)$ for a locally compact group $g$, is quotient arens regular with respect to certain introverted subspace $e$ of $l^infty(g)$.some related result are given as well.

The stability of estuarine channel-shoal systems is important for port utilization, navigation maintenance, habitat protection and ecosystem service functions. This paper uses the South Channel Changjiang (Yangtze River) Estuary as a typical example to investigate adjustment mechanism its future trend. combined approaches bathymetric data analysis process-based modeling (Delft3D) are applied. Q...

This paper proposes a joint analysis of variations global sea-level pressure (SLP) and Earth’s rotation (RP), expressed as the coordinates pole (m1, m2) length day (lod). We retain iterative singular spectrum (iSSA) main tool to extract trend, periods, quasi periods in data time series. SLP components are weak seven quasi-periodic or periodic (?130, 90, 50, 22, 15, 4, 1.8 years), an annual cycl...