In this article, we review the established understanding of the concept of expatriate failure, discuss its associated problems and present a more sophisticated and comprehensive understanding of the concept. We argue that it might well be time to abandon the concept of expatriate failure altogether and instead draw on the general HR literature to analyse problems related to turnover and perform...

This paper presents a simple, efficient algorithm to compute the covering graph of the lattice generated by a family B of subsets of a set X. The implementation of this algorithm has O((|X| + |B|) · |B|) time complexity per lattice element. This improves previous algorithms of Bordat (1986), Ganter and Kuznetsov (1998) and Jard et al. (1994). This algorithm can be used to compute the Galois (co...

Any system with the ability to learn from a time series and predict the future must have a memory representing the information from the recent past. In cases where the external environment generating the time series has a fixed scale, the memory can be a simple shift register—a moving window of finite width extending into the past. The width of the window should be large enough to describe the ...

A concept (or Galois) lattice is built on a binary relation; this relation can be represented by a bipartite graph. We explain how we can use the graph tool of clique minimal separator decomposition to decompose some bipartite graphs into subgraphs in linear time; each subgraph corresponds to a subrelation. We show that the lattices of these subrelations easily yield the lattice of the global r...

There are two main visions relating to the concept of time. The first, classical one, describes time as constant, universal and possibly extramental. The more recent one, rooted in Einstein's theories of relativity, proposes a space-time perspective and views time as strongly dependent on the observer. Looking across various scientific disciplines which ask questions about the existence and ess...

Recent traac analyses from various packet networks have shown the existence of long-range dependence in bursty traf-c. In evaluating its impact on queuing performance, earlier investigations have noted how the presence of long-range dependence , or a high value of the Hurst parameter H, is often associated with surprisingly large queue sizes. As a result, a common impression has been created of...

By means of the shift operators we introduce a new periodicity concept on time scales. This new approach will enable researchers to investigate periodicity notion on a large class of time scales whose members may not satisfy the condition there exists a P > 0 such that t± P ∈ T for all t ∈ T, which is being currently used. Therefore, the results of this paper open an avenue for the investigatio...

Fifty-one years ago, at the height of World War II, the National Research Council (NRC) published a six-page document entitled Recommended Dietary Allowances (RDAs). Since then, the nine successive editions of the RDAs have become nutrition's gold standard—the most authoritative guide to the nutrient needs of people in the United States, used for an extraordinary variety of purposes. The NRC's ...