Order of the Golden Chain learning disabilities and minimal brain damage. Also, through the generosity of the members, along with their families and friends, four forests of more than forty trees have been planted in Israel. For its many benevolent acts, the Order was accorded the honor of having the Sunday of Brotherhood Week in February designated as "Golden Chain Day" by the non-sectarian Chapel of the Four Chaplains at Temple University, Philadelphia. The Order portrays its ideals and principles in a solemn ceremony. Six officers, known as Jewels, exalt the ideals of womanhood in tribute to their accomplishments in the home, in history, and
Spanning tree and "routing loops", many routing protocols designed for such networks—including the Spanning Tree Protocol, Open Shortest Path First, Link-state routing protocol, Augmented tree-based routing, etc.—require each router to remember a spanning tree. A special kind of spanning tree, the Xuong tree, is used in topological graph theory to find graph embeddings with maximum genus. A Xuong tree is a spanning tree such that, in the remaining graph, the number of connected components with an odd number of edges is as small as possible. A Xuong tree and an associated maximum-genus embedding can be found in polynomial time. A tree is