Group-Based Social Network Characterisation of Hidden Terrorist Networks

Hidden networks arise in high-dimensional network structures when the hidden network members camouflage their existence by appearing randomly connected to the larger network structure, but in reality ensure they remain in persistent contact with one another over time. This paper takes a first step towards determining how to locate such hidden networks through the novel use of group-based social network metrics to characterise the features of hidden networks. Micro, meso and macro-level network analyses of the September 11 network and a selection of popular simulated terrorist network structures will show that the simulated networks are highly visible whereas the hidden networks display low visibility except at the macro level. Moreover these hidden networks aid to camouflage a highly prominent terrorist network of trusted prior contacts

On the detection of hidden terrorist cells immersed in peer to peer networks

Hidden terrorist cells in high dimensional communications networks arise when terrorists camouflage connectivity to appear randomly connected to the background network. We investigate hidden network detectability when the background network does not support terrorist activities. Using two September 11 terrorist networks as the test bed and a network measure called assortativity, we suggest hidden terrorist networks can behave as Peer-to-Peer networks. We compare the September 11 hidden networks with Peer-to-Peer networks containing embedded terrorist networks, as well as with generic Peer-to-Peer networks. Using Peer-to-Peer characteristics and social network group-based centralities, we show that for certain Peer-to-Peer networks it is possible to detect hidden terrorist networks in cyberspace, with potential future application to Instant Messaging and Skype networks

What is a unit of capacity worth?

Consider a finite-capacity telecommunications link to which connection requests arrive in a Poisson process. Each connection carried on the link earns a certain amount of revenue for the link's manager. Now, assume that the manager is offered the opportunity to buy or sell a unit of the link's allocated capacity. Assuming that the manager has a knowledge of the current number of connections on the link, we demonstrate a method of calculating the buying and selling prices.B.A. Chiera and P.G. Taylo

Contribución al conocimiento del lúpulo argentino: estimación de su calidad cervecera

En este trabajo se han analizado la mayoría de las variedades de lúpulo argentino comercial y experimentales, cuyas características han permanecido prácticamente ignoradas hasta el día de hoy, a juzgar por la escasa bibliografía al respecto. En este trabajo se le ha dado particular importancia a la parte monográfica, que se inicia con los antecedentes históricos referentes al lúpulo para terminar con una reseña respecto al lúpulo en nuestro país, con el objeto de poder contar en nuestro idioma con un trabajo que reúna el de numerosos investigadores, dispersos en una frondosa bibliografía en diversas lenguas y para facilitar en lo posible, el trabajo de algún estudioso que desee ahondar en este tema. El mismo objeto persiguen las ciento ochenta y ocho citas bibliográficas que se incluyen en este trabajo.Tesis digitalizada en SEDICI gracias a la Biblioteca Central de la Facultad de Ciencias Exactas (UNLP).Facultad de Ciencias Exacta

Recensione di I. Adornetti, Il farsi e il disfarsi del discorso. Pragmatica del linguaggio e processi cognitivi

Book-revie

Contribución al conocimiento del lúpulo argentino: estimación de su calidad cervecera

En este trabajo se han analizado la mayoría de las variedades de lúpulo argentino comercial y experimentales, cuyas características han permanecido prácticamente ignoradas hasta el día de hoy, a juzgar por la escasa bibliografía al respecto. En este trabajo se le ha dado particular importancia a la parte monográfica, que se inicia con los antecedentes históricos referentes al lúpulo para terminar con una reseña respecto al lúpulo en nuestro país, con el objeto de poder contar en nuestro idioma con un trabajo que reúna el de numerosos investigadores, dispersos en una frondosa bibliografía en diversas lenguas y para facilitar en lo posible, el trabajo de algún estudioso que desee ahondar en este tema. El mismo objeto persiguen las ciento ochenta y ocho citas bibliográficas que se incluyen en este trabajo.Tesis digitalizada en SEDICI gracias a la Biblioteca Central de la Facultad de Ciencias Exactas (UNLP).Facultad de Ciencias Exacta

Impact of stress, immunity, and signals from endocrine and nervous system on fascia.

The stress response, by virtue of release of glucocorticoids and catecholamines and by modifying the endocrine, neural, and immune responses, can impact the function of the fibroblasts and myofibroblasts that reside throughout the body and more specifically in the fascia, a ubiquitous and multi-functional connective tissue that supports the body. In the present paper, we review these stress-induced responses relying on psychoneuroendocrineimmunology

Low Birth Weights and Risk of Neonatal Mortality in Indonesia

Background: Neonatal mortality rates in Indonesia remain steady in the past decades (20 in 2002 to 19 per 1000 live births in 2012). In order to accelerate the decline in neonatal mortality rate in Indonesia, specific interventions would have to target key factors causing mortality. This study aims to examine contribution of low birth weight on neonatal mortality in Indonesia. Methods: Data from the Indonesia Demographic and Health Survey (IDHS) conducted in 2012 were used in the analysis. A total of 18021 live births in the last five years preceding the survey were reported from the mothers. Completed information of their children (14837 children) were taken for this analysis. The adjusted relative risk with cox proportional hazard regression analysis were used to assess the strength of association to neonatal mortality. Results: Children born in low birth weight were 9.89-fold higher risk of neonatal mortality compared to children born in normal weight [adjusted relative risk (aRR) = 9.89; 95% confidence interval (CI): 7.41 – 13.19); P = < 0.0001]. Children delivered from younger mothers (aged 15 - 19 years) had 94% higher risk of neonatal mortality compared to children delivered from mothers aged 20-35 years. Working mothers had 81% higher risk of neonatal mortality compared to unemployed mothers. Conclusion: Children born in a low birth weight and born from younger mothers had higher risk of neonatal mortality. Appropriate care and treatment for children born in low birth weight is needed to prolonged survival rates of the children. (Health Science Journal of Indonesia 2016;7(2):113-117