Results 221 to 230 of about 4,741,798 (267)

A CENTRAL ROLE FOR CENTRAL TOLERANCE

Annual Review of Immunology, 2006
Recent elucidation of the role of central tolerance in preventing organ-specific autoimmunity has changed our concepts of self/nonself discrimination. This paradigmatic shift is largely attributable to the discovery of promiscuous expression of tissue-restricted self-antigens (TRAs) by medullary thymic epithelial cells (mTECs).
Bruno, Kyewski, Ludger, Klein
openaire   +2 more sources

The Centrality of Central Asia

Studies in History, 1992
From time to time Studies in History will carry a contribution challenging received wisdoms or turning long-standing issues on their head. Our first dialogue is initiated by Andre Gunder Frank who argues that the history of Central Asia is crucial to the understanding of developments in a very large part of the world. Four scholars of Central Asia then
openaire   +1 more source

Centralization

2006
AbstractThis chapter considers the balance between central control and subsidiary autonomy in HR policy and practice. US multinationals have been shown to centralize control of international HR policy compared with multinationals of other nationalities.
Ferner, A. M., Gunnigle, P., Quintanilla, J., Wächter, H., Edwards, Tony   +4 more
openaire   +1 more source

Eigenvector-centrality — a node-centrality?

Social Networks, 2000
Abstract Networks of social relations can be represented by graphs and socio- or adjacency-matrices and their structure can be analyzed using different concepts, one of them called centrality. We will provide a new formalization of a “node-centrality” which leads to some properties a measure of centrality has to satisfy.
openaire   +1 more source

Centralized Teaching and Central Schools

The American Journal of Nursing, 1954
ENTRAL schools of nursing and centralized teaching programs are not new ideas or plans of education. In a paper which she read at the turn of the twentieth century, Adelaide Nutting suggested the or'ganization of a school of nursing in which the fundamental sciences would be taught in a basic course and where practice, training, and experience would be
openaire   +2 more sources

To centralize or not centralize.

Modern healthcare, 1990
Not-for-profit systems increasingly are turning to centralized management systems in an effort to reduce duplication of services at local hospitals and to save money. At the same time, some for-profit systems are abandoning their traditional centralized philosophies and are eliminating services provided by the corporate office, often as a result of ...
J, Greene, J, Nemes
openaire   +1 more source

Centralizers and Central Idempotents of Semigroup Rings

Semigroup Forum, 2001
A ring means an associative ring (not necessarily with unity). Let \(R\) be a ring, \(A\subseteq R\). The set \(C_R(A)=\{r\in R\mid ar=ra\) for all \(a\in A\}\) is called the centralizer of \(A\) in \(R\). Let \(S\) be a semigroup, and let \(R[S]\) be the semigroup ring of \(S\) over \(R\).
openaire   +1 more source

Central and non-central metacyclic codes

Finite Fields and Their Applications
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Seema Chahal, Sugandha Maheshwary
openaire   +1 more source