Search Results

You are looking at 1 - 10 of 61 items for :

  • "complex network" x
  • Refine by Access: All Content x
Clear All

are fulfilled by using complex networks (Barabási 2009 ; Albert and Barabási 2002 ; Newman 2003 ) and natural language processing formalisms (for the use of complex networks in natural language processing, see Ferrer et al. 2001 , 2004 ; Sigman

Restricted access

Hogyan befolyásolja a villamosenergia-hálózatról rendelkezésre álló információ a fizikai támadások által okozott sérülékenységről alkotott képet?

A hazai energiaszolgáltatás túlélőképessége

How grid information affects the perception of vulnerability of the power grid under physical attacks.

Robustness of the Hungarian power grid
Scientia et Securitas
Author: Bálint Hartmann

complex network approach. Chaos: An Interdisciplianry Journal of Nonlinear Science, Vol. 19. No. 1. https://doi.org/10.1063/1.3077229 3 Aziz, T

Open access

Statistical mechanics of complex networks Reviews of Modern Physics 74 47 – 97 . 26. Dorogovtsev , S. N

Restricted access
Pszichológia
Authors: Brigitta Tóth, Roland Boha, Eszter Kormann, Zsófia Anna Gaál, Anikó Kónya, and Márk Molnár

. Current Biology , 19 , 1846 – 1852 . 18. Stam , C. J. , Reijneveld , J. C. ( 2007 ): Graph theoretical analysis of complex networks in the brain . Nonlinear Biomed. Phys , 1 ( 3

Restricted access

and other complex networks (White and McCain 1998 ). Various types of scientometric analyses have been recently performed for domains such as HIV/AIDS (Pouris and Pouris 2010 ), Scientometrics (Hou et al. 2008 ), Mexican Astronomers

Restricted access

Albert, R. -Barab ási, A.-L. 2002 Statistical mechanics of complex networks. Reviews of Modern Physics 74, 47–97. Barabási A

Restricted access
Scientia et Securitas
Authors: Brigitta Tóth, Ádám Boncz, Bálint File, István Winkler, and Márk Molnár

Albert Réka Barabási Albert-László Statistical mechanics of complex

Open access

Abstract  

Coal is pre-irradiated with X-rays before being submitted to liquefaction with the aim to depolymerize (upgrade) the complex network to simple chemical species. It was found taht the pre-irradiation enhances the liquefaction yield from 48% (liquefaction without pre-irradiation) to 65% (after 10 h of pre-irradiation with X-rays). Our data suggests that since pyrolytic bond breaking is considered to be the first step in the coal liquefaction process, pre-irradiation with X-rays will create free radicals which then enhance the liquefaction.

Restricted access

Insulin-like growth factors (IGF-I/-II) are not only the endocrine mediators of growth hormone-induced metabolic and anabolic actions but also polypeptides that act in a paracrine and autocrine manner to regulate cell growth, differentiation, apoptosis and transformation. The IGF system is a complex network comprised of two growth factors (IGF-I and -II), cell surface receptors (IGF-IR and -IIR), six specific high affinity binding proteins (IGFBP-1 to IGFBP-6), IGFBP proteases as well as several other IGFBP-interacting molecules, which regulate and propagate IGF actions in several tissues. Besides their broad-spectrum physiological and pathophysiological functions, recent evidence suggests even a link between IGFs and different malignancies.

Restricted access

In this paper we attempt to define the concept of social futuring and classify it using multiple dimensions. Starting out with a minimal definition of the notion, we elaborate on the ideal-typical definition of social futuring based on the concepts of necessary and sufficient conditions. Thereafter, classifications of the different forms and types of social futuring are developed according to various features. A complex network of concepts is constructed to make the ambiguous notion more precise and to operationalize it with a view to the construction of a Social Futuring Index. We close our study in the hope that we have managed to illuminate and clarify the multi-layered concept of social futuring by creating an analytical framework which is in synergy with the normative foundations of the research.

Restricted access