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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.
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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

Supplier dependence and R&D intensity: The moderating role of network centrality and interconnectedness

Journal of Operations Management, 2018
This study examines whether financial dependence upon a few customers is negatively related to the allocation of innovation resources of supplier firms.
Dong-Young Kim, P. Zhu
semanticscholar   +1 more source

Network Centrality: An Introduction

A Mathematical Modeling Approach from Nonlinear Dynamics to Complex Systems, 2018
Centrality is a key property of complex networks that influences the behavior of dynamical processes, like synchronization and epidemic spreading, and can bring important information about the organization of complex systems, like our brain and society ...
F. Rodrigues
semanticscholar   +1 more source

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
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A multi-centrality index for graph-based keyword extraction

Information Processing & Management, 2019
Keyword extraction aims to capture the main topics of a document and is an important step in natural language processing (NLP) applications. The use of different graph centrality measures has been proposed to extract automatic keywords. However, there is
D. Vega-Oliveros   +3 more
semanticscholar   +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 \(R\).
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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
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The location of retail stores and street centrality in Guangzhou, China

Applied Geography, 2018
Transportation networks have a profound influence on the location of retail stores, but there has been little research on the relationship between the location of retail stores and street centrality in traditional commercial metropolises.
Geng Lin, Xiaoxuan Chen, Yutian Liang
semanticscholar   +1 more source

Central Hypothyroidism

Endocrinology and Metabolism Clinics of North America, 1992
Central hypothyroidism is an uncommon condition characterized by insufficient thyroid gland stimulation by TSH, owing to hypothalamic and/or pituitary dysfunction. It is rarely isolated but more often occurs in conjunction with deficiencies of other pituitary hormones, as well as with neurologic symptoms and signs owing to hypothalamic/pituitary ...
M H, Samuels, E C, Ridgway
openaire   +2 more sources

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