For finite q, we classify the countable, descendant-homogeneous digraphs in which the descendant set of any vertex is a q-valent tree. We also give conditions on a rooted digraph Γ which allow us to construct a countable descendant-homogeneous digraph in which the descendant set of any vertex is isomorphic to Γ. 2010 Mathematics Subject Classification: 05C20, 05C38, 20B27

One of the most important problems of the prehistory of Europe, is the issues concerning the chronology, spatial relations, connections, contacts, communications, exchange networks, and interactions between Neolithic and Eneolithic people within a large area of the central, south-east and south Europe, first of all between thus from the Ukraine, south-east central Europe and east Balkan, and on...

Researchers have recently proposed that "moralistic" religions-those with moral doctrines, moralistic supernatural punishment, and lower emphasis on ritual-emerged as an effect of greater wealth and material security. One interpretation appeals to life history theory, predicting that individuals with "slow life history" strategies will be more attracted to moralistic traditions as a means to ju...

E-Government strategies, investments, project selection, and implementations are influenced by value positions deeply enshrined in the traditions of public administration, which are in turn reflected in the everyday discourse of public managers. We analyse value traditions in the public administration literature and their adaptation for e-Government and synthesise three prominent positions. Adm...

The major environmental problems of the twentyfirst century, including climate change, water scarcity, pollution and resource exhaustion, represent a new category of crisis and highlight the desperate need for an integrated science of socioecological phenomena. To help establish the foundations of such a science, we explore three traditions of mathematical theory: the Lotka–Volterra interaction...

There is but one China in the world. Taiwan is a part of China and the Government of the People’s Republic of China is the sole legal government representing the whole of China. This is the basic content of the one-China principle. As one of the world’s few time-honored countries, China has fine traditions and a brilliant civilization that can be traced back to ancient times. Such a civilizatio...

In the 1960s in London, England, Cicely Saunders introduced a new way of treating the terminally ill, which she called “hospice care.” Saunders, a trained nurse, social worker, and medical doctor, held that humans should be able to die with dignity and at peace. This viewpoint originated from her medical experience as well as her religious commitment as a Christian. The religious basis of hospi...