Search results for "Social network"
showing 10 items of 537 documents
Scientometric portrait of biochemist Santiago Grisolia: publication productivity, collaboration patterns, and citation analysis
2014
Santiago Grisolía has made numerous scientific discoveries and contributions of great relevance to the advancement of biochemistry and molecular biology, particularly in the field of enzymology in the metabolism of nitrogen related to the urea cycle and the impoverishment of pyrimidines. This article analyses, by means of bibliometrics indicators and social network analysis, his professional career, comparing the results obtained with the patterns of scientific activity of other distinguished researchers. The main findings of the study carried out are as follows: the evolution of his scientific productivity shows an initial period in which the growth is slow or moderate, followed by a fast …
Evolution of Cooperation Patterns in Psoriasis Research: Co-Authorship Network Analysis of Papers in Medline (1942–2013)
2015
BackgroundAlthough researchers have worked in collaboration since the origins of modern science and the publication of the first scientific journals in the eighteenth century, this phenomenon has acquired exceptional importance in the last several decades. Since the mid-twentieth century, new knowledge has been generated from within an ever-growing network of investigators, working cooperatively in research groups across countries and institutions. Cooperation is a crucial determinant of academic success.ObjectiveThe aim of the present paper is to analyze the evolution of scientific collaboration at the micro level, with regard to the scientific production generated on psoriasis research.Me…
The influence of social media use on body image concerns
2018
Internet-based media and especially social networking sites differ from traditional media in that they al- low individuals to interact with their friends in their networks. Moreover, Internet-based media are easi- ly available on devices such as smartphones or tablets. Previous research has demonstrated that mass media contribute powerfully to an individual’s body dissatisfaction. To date, research on the effects re- lated to exposure to ‘newer’ forms of media, in particular social media on the Internet, is scarce. The purpose of the current study is to review the extant body of research dealing with the influence of social media on body image concerns, especially among adolescents. Adolesc…
A branch-and-price framework for decomposing graphs into relaxed cliques
2021
We study the family of problems of partitioning and covering a graph into/with a minimum number of relaxed cliques. Relaxed cliques are subsets of vertices of a graph for which a clique-defining property—for example, the degree of the vertices, the distance between the vertices, the density of the edges, or the connectivity between the vertices—is relaxed. These graph partitioning and covering problems have important applications in many areas such as social network analysis, biology, and disease-spread prevention. We propose a unified framework based on branch-and-price techniques to compute optimal decompositions. For this purpose, new, effective pricing algorithms are developed, and new…
“The war is over”. Militarizing the language and framing the Nation in post-Brexit discourse
2020
This chapter analyzes the militarization of political language in digital contexts in the post-Brexit discourse, and how such militarization, which is often constitutive of hate speech, contributes to framing an “exclusive” concept of the nation whose meaning is reproduced and circulated (as well as challenged) in society. It will address the role of emotions and hate in language in fueling and aggregating online communities around a key political issue, i.e. the Brexit negotiations, and a core cultural and social concept, i.e. the nation. The militarization of language, which is based on certain discursive structures, e.g. war metaphors (Lakoff and Johnson 1980, Musolff 2020), is one of th…
Investigating Centrality Measures in Social Networks with Community Structure
2021
Centrality measures are crucial in quantifying the influence of the members of a social network. Although there has been a great deal of work dealing with this issue, the vast majority of classical centrality measures are agnostic of the community structure characterizing many social networks. Recent works have developed community-aware centrality measures that exploit features of the community structure information encountered in most real-world complex networks. In this paper, we investigate the interactions between 5 popular classical centrality measures and 5 community-aware centrality measures using 8 real-world online networks. Correlation as well as similarity measures between both t…
Measuring the ‘Bridging’ versus ‘Bonding’ Nature of Social Networks: A Proposal for Integrating Existing Measures
2010
Recent research illustrates that two distinct interpretations and operationalizations of ‘bridging’ and ‘bonding’ social networks co-exist in the literature (based on links between diverse networks or between socio-economic groups within a given network, respectively), and that these do not coincide in empirical applications. The present contribution first confirms this conclusion using data from the United Kingdom. Then, we suggest a simple way to integrate both existing approaches into a more general measure of bridging and bonding. Applying this more general index to UK and Flemish data, a) provides stronger empirical support for the idea that memberships in bridging groups are more str…
On relationship types, their strength, and reward crowdfunding backer behavior
2023
ispartof: JOURNAL OF BUSINESS RESEARCH vol:154 status: published
CORPORATE VENTURE CAPITAL SYNDICATION STRATEGIES: A DYNAMIC NETWORK PERSPECTIVE
2018
Corporate Venture Capital (CVC) syndication is embraced by over 80% of corporates which co-investing the same startups with other corporates create a CVC syndication network. In this paper, we aim at exploring the evolutionary dynamics of the CVC syndication network. Specifically, we address this topic adopting two different perspectives. First, we investigate the architectural evolution of the CVC syndication network examining five dimensions that characterize the evolution of the network structure (i.e. degree distribution, connectivity, clustering, density and degree assortativity). In addition, we study how three network strategies (i.e. prominence, entrepreneurial and relational) evolv…
Capital social i xarxes relacionals en els processos de creació de conexement i innovació
2010
Fa aproximadament dues dècades, el concepte de capital social va ser integrat al debat i discurs sobre el desenvolupament, en termes d'un actiu de cooperació, reciprocitat i confiança, present en normes i valors, i en les relacions socials de certs grups. El concepte de capital social guarda relació amb la necessitat d'aprehendre en un sol concepte un conjunt de dimensions de la interacció col·lectiva, en les quals els individus s'han de situar a fi d'estructurar una interacció amb sentit i establir-se com a persones en la trama de normes i valors morals que constitueixen i construeixen la comunitat i la societat que es viu. Així, doncs, el capital social de forma implícita porta associada …