Context: In spiral galaxies, star formation tends to trace features of the pattern, including arms, spurs, feathers, and branches. However, in our own Milky Way, it has been challenging connect individual star-forming regions their larger Galactic environment owing perspective from within disk. One feature nearly all modern models Way is Sagittarius Arm, located inward Sun with a pitch angle ~1...

introduction: in order to make a dimensional proportion between human and equipment or environment, anthropometric data bank is essential. anthropometry has an important role in industrial management and ergonomic design. this information is needed to be collected regularly in every society. the purpose of this study was to determine arm length to height ratio according to gender in adults, bet...

The ratio of males to females in a population is a meaningful characteristic of sexual species. The reason for this biological property to be available to the observers of nature seems to be a question never asked. Introducing the notion of historically adapted populations as global minimizers of maintenance cost functions, we propose a theoretical explanation for the reported stability of this...

We analyze the List scheduling algorithm for the problem of minimizing makespan using a worst-average-case or wac analysis technique, previously used by Kenyon for analyzing the Best Fit bin packing algorithm. We show that List’s worst-average-case or wac ratio asymptotically approaches 2 as m→∞. Thus, List’s worst-case behavior is not overly dependent on the order of job arrivals.

In an attempt to explain the observed unexpectedly high energy gamma radiation over a broad region of the galactic plane in the general direction of the galactic center, a model is proposed wherein the galactic cosmic rays are preferentially located in the high matter density regions of galactic arm segments, as a result of the weight of the matter in these arms tieing the magnetic fields and h...