Multicast using PIM-SM in Broadband Satellite Multimedia Systems

The approach currently being taken by ETSI (BSM) to standardisation for Multicast PIM-SM protocols is described. This paper describes methods, architectures and adaptations to support IP-multicast services efficiently across IP-based broadband multimedia satellite systems. This work has recently begun and the final objective is to arrive at a consensus for a standard on this subject

Model for coiling and meandering instability of viscous threads

A numerical model is presented to describe both the transient and steady-state dynamics of viscous threads falling onto a plane. The steady-state coiling frequency w is calculated as a function of fall height H. In the case of weak gravity, w ~ H^{-1} and w ~ H are obtained for lower and higher fall heights respectively. When the effect of gravity is significant, the relation w ~ H^2 is observed. These results agree with the scaling laws previously predicted. The critical Reynolds number for coil-uncoil transition is discussed. When the gravity is weak, the transition occurs with hysteresis effects. If the plane moves horizontally at a constant speed, a variety of meandering oscillation modes can be observed experimentally. The present model also can describe this phenomenon. The numerically obtained state diagram for the meandering modes qualitatively agrees with the experiment.Comment: 12 pages, 10 figure

Unitary groups over local rings

Structural properties of unitary groups over local, not necessarily commutative, rings are developed, with applications to the computation of the orders of these groups (when finite) and to the degrees of the irreducible constituents of the Weil representation of a unitary group associated to a ramified extension of finite local rings

The Design of Linear Servo-Mechanisms Having Prescribed Transient Responses, With an Experimental Investigation Into the Prediction of Transient Response From Frequency Response

Abstract Not Provided

Rapid prototyping and fast user trial of multimedia broadcast and cellular services

This paper presents the results of fast user trial of multimedia services that are enabled when a mobile terminal has access to converged services over digital broadcast and mobile telecommunications networks. It first describes the motivations behind developing this system and describes the service scenarios that benefit most from it. It then provides an overview of the service components of the test case scenario. Finally, it presents the results of fast user trials on end users of the services that were developed. This work was conducted as part of the EU-funded CISMUNDUS project

The struggle for legitimacy: language provision in two ‘residual’ comprehensive high schools in Australia

© 2016, © 2016 Informa UK Limited, trading as Taylor & Francis Group. Despite the contemporary policy rhetoric of global citizenry and the importance of languages and intercultural capabilities, language learning in Australian schools struggles for recognition and support. The curriculum marginalisation of languages, however, is uneven, affecting some school sectors more than others. In this article, we examine the provision of languages in two government comprehensive high schools, both low socio-economic status, located in urban areas in New South Wales, Australia’s largest state. They are termed ‘residual’ high schools because they cater for the students remaining in the local schools while others attend either private or selective government high schools. We provide a qualitative picture of language provision in these two schools from the perspectives of key stakeholders–school principals, teachers, students and parents. We also draw on observational data of language classes. The aim is to provide, within a largely social class framework, an understanding of the state of language provision in these schools. We argue that currently students in these schools are experiencing unequal access to the linguistic and cultural capital associated with language learning relative to students in more privileged communities and schools

A single supplement of a standardised bilberry (Vaccinium myrtillus L.) extract (36 % wet weight anthocyanins) modifies glycaemic response in individuals with type 2 diabetes controlled by diet and lifestyle

Peer reviewedPublisher PD

Developing a Natural Language Understanding Model to Characterize Cable News Bias

Media bias has been extensively studied by both social and computational sciences. However, current work still has a large reliance on human input and subjective assessment to label biases. This is especially true for cable news research. To address these issues, we develop an unsupervised machine learning method to characterize the bias of cable news programs without any human input. This method relies on the analysis of what topics are mentioned through Named Entity Recognition and how those topics are discussed through Stance Analysis in order to cluster programs with similar biases together. Applying our method to 2020 cable news transcripts, we find that program clusters are consistent over time and roughly correspond to the cable news network of the program. This method reveals the potential for future tools to objectively assess media bias and characterize unfamiliar media environments

Languages discourses in Australian middle-class schools: parent and student perspectives

© 2016 Informa UK Limited, trading as Taylor & Francis Group. Much of the literature on social class and language study in schools argues that for middle-class parents and their children, languages are chosen for their capacity to offer forms of distinction that provide an edge in the global labour market. In this paper, we draw on data collected from interviews with parents and children in middle-class schools in Australia to demonstrate how a complex amalgam of elite, cultural identity and/or trade language discourses came into play to explain the choice (or not) to study a language and the choice of specific languages. For many of the parents languages provided a limited form of ‘civic multiculturalism’, as a means of better understanding and respecting the ‘other’. We argue that the value attributed to high status languages via this discourse, means their continued presence in schools hoping to attract middle-class parents, but their relative absence in schools with largely working-class populations, where more ‘practical’ concerns dominate