Identity and ethnicity in /t/ in Glasgow-Pakistani high-school girls

This paper presents an acoustic phonetic analysis of Glasgow Asian syllable-initial /t/, in speech data collected from Pakistani-Muslim girls in a Glasgow high school after a long-term participant observation into their shared and differing social practices. The results show differences in spectral energy and shape according to following phonetic segment, and to membership in two contrasting Communities of Practice, more conservative girls maintaining traditional cultural practices, and more rebellious girls whose behaviour challenges such norms. The findings demonstrate that ethnicity is integrally linked with locally-salient identity, and hence that fine phonetic variation which indexes ethnicity is in fact indexical of local ethnic identity

Interplay of chemical pressure and hydrogen insertion effects in CeRhSn {\bf CeRhSn} from first principles

Investigations within the local spin density functional theory (LSDF) of the intermetallic hydride system ${\rm CeRhSnH_x}$ were carried out for discrete model compositions in the range $0.33 \leq x_H \leq 1.33$. The aim of this study is to assess the change of the cerium valence state in the neighborhood of the experimental hydride composition, ${\rm CeRhSnH_{0.8}}$. In agreement with experiment, the analyses of the electronic and magnetic structures and of the chemical bonding properties point to trivalent cerium for $1 \leq x_H \leq 1.33$. In contrast, for lower hydrogen amounts the hydride system stays in an intermediate-valent state for cerium, like in ${\rm CeRhSn}$. The influence of the insertion of hydrogen is addressed from both the volume expansion and chemical bonding effects. The latter are found to have the main influence on the change of Ce valence character. Spin polarized calculations point to a finite magnetic moment carried by the Ce $4f$ states; its magnitude increases with $x_H$ in the range $1 \leq x_H \leq 1.33$

Nonmodal energy growth and optimal perturbations in compressible plane Couette flow

Nonmodal transient growth studies and estimation of optimal perturbations have been made for the compressible plane Couette flow with three-dimensional disturbances. The maximum amplification of perturbation energy over time, $G_{\max}$, is found to increase with increasing Reynolds number ${\it Re}$, but decreases with increasing Mach number $M$. More specifically, the optimal energy amplification $G_{\rm opt}$ (the supremum of $G_{\max}$ over both the streamwise and spanwise wavenumbers) is maximum in the incompressible limit and decreases monotonically as $M$ increases. The corresponding optimal streamwise wavenumber, $\alpha_{\rm opt}$, is non-zero at M=0, increases with increasing $M$, reaching a maximum for some value of $M$ and then decreases, eventually becoming zero at high Mach numbers. While the pure streamwise vortices are the optimal patterns at high Mach numbers, the modulated streamwise vortices are the optimal patterns for low-to-moderate values of the Mach number. Unlike in incompressible shear flows, the streamwise-independent modes in the present flow do not follow the scaling law $G(t/{\it Re}) \sim {\it Re}^2$, the reasons for which are shown to be tied to the dominance of some terms in the linear stability operator. Based on a detailed nonmodal energy analysis, we show that the transient energy growth occurs due to the transfer of energy from the mean flow to perturbations via an inviscid {\it algebraic} instability. The decrease of transient growth with increasing Mach number is also shown to be tied to the decrease in the energy transferred from the mean flow ($\dot{\mathcal E}_1$) in the same limit

Revisiting νμ(νˉμ)\nu_\mu(\bar\nu_\mu) and νe(νˉe)\nu_e(\bar\nu_e) Induced Quasielastic Scattering from Nuclei in Sub-GeV Energy Region

We present the results of charged current quasielastic(CCQE) scattering cross sections from free as well as bound nucleons like in $^{12}C$, $^{16}O$, $^{40}Ar$ and $^{208}Pb$ nuclear targets in $E_\nu(_{\bar\nu})~\le~$1 GeV energy region. The results are obtained using local Fermi gas model with and without RPA effect. The differences those may arise in the electron and muon production cross sections due to the different lepton mass, uncertainties in the axial dipole mass $M_A$ and pseudoscalar form factor, and due to the inclusion of second class currents have been highlighted for neutrino/antineutrino induced processes.Comment: Published in Journal of the Physical Society of Japan (NuInt-2015

HOW INDONESIA SHOULD ELIMINATE DISCRIMINATIONS TOWARDS LGBT AS A PART OF CIVIL AND HUMAN RIGHTS

Information about two public universities in Indonesia which used to release the announcement of prohibition towards new students in great suspicion to be engaged in LGBT activities or in personal are a part of LGBT encourages some intense protests from society in Indonesia. Not only do activists in concern of LGBT issues voice their objection, but also other people in general. This emerges in two years subsequently, in Andalas University, Padang, 2016 and in University of Indonesia Education, Bandung, 2017. The information of both universities in attempt to decline the registration from LGBT students reflects how higher education institution should realize the following impacts from the prohibition due to specific moral values, in a meantime, it is expected that the institution be open for any student without discriminating them against race, ethnic, beliefs, economy status, and sexual orientations. Through an intense overview to media and literature study as a part of direct observation, this paper outlines how the state is supposed to act when such a prohibition emerges extended with an elaboration of some protocols or covenants addressing the rights of students or people in LGBT groups as civil rights. It is obvious that the state must be in high capability of protecting them as a part of citizens without discriminating them against their sexual orientations. Therefore, people in LGBT might enjoy their basic rights as humans while at the same time gaining their same rights as other citizens guaranteed by the state. Keywords: LGBT; Discriminations; Civil and Human Right

A Cloud Platform-as-a-Service for Multimedia Conferencing Service Provisioning

Multimedia conferencing is the real-time exchange of multimedia content between multiple parties. It is the basis of a wide range of applications (e.g., multimedia multiplayer game). Cloud-based provisioning of the conferencing services on which these applications rely will bring benefits, such as easy service provisioning and elastic scalability. However, it remains a big challenge. This paper proposes a PaaS for conferencing service provisioning. The proposed PaaS is based on a business model from the state of the art. It relies on conferencing IaaSs that, instead of VMs, offer conferencing substrates (e.g., dial-in signaling, video mixer and audio mixer). The PaaS enables composition of new conferences from substrates on the fly. This has been prototyped in this paper and, in order to evaluate it, a conferencing IaaS is also implemented. Performance measurements are also made.Comment: 6 pages, 6 figures, IEEE ISCC 201

Evaluation of a Proposed Dust Ventilation/Collection System in an Underground Mine Crushing Plant

Computational Fluid Dynamics (CFD) modelling of a dust collection system in an underground mine crushing plant was carried out. Dust was collected/absorbed through the holes along the top edge of Run of Mine (ROM) bin. The dust collection performance of the system is summarised. The detail results are presented in the form of velocity vectors and dust concentration iso-surface contours. Time dependent dust concentration isosurfaces are also presented. Dust was found to be well contained within the crusher bin and stands out as a viable option. However, the velocity magnitudes were found to be very high in and around the whole exits, which has the potential to lead to undesirable pressure drop and generation of noise

(In Press) A new house wall system for residential buildings

The residential housing sector consumes a significant amount of fossil fuel energy and thereby produces a large percentage of greenhouse gas emissions that contribute to global warming and climate change. At present, approximately 40% of the total household energy used is required for space heating/cooling and a substantial amount of that energy is lost through the house walls. Despite the importance of house walls for energy efficiency, most published literature focuses mainly on thermal comfort, environmental impact and economic costs of residential buildings. Little information is available on energy efficient house wall systems that can be used and adapted for varied climate conditions with minimal design change and associated cost. Therefore, the primary objective of this paper was to undertake a thermal performance study of two house wall systems with single and double glazed windows under variable climate conditions. The study was undertaken using thermal performance simulation software AccuRate®. The findings indicate that a significant energy saving can be achieved using the new house wall system compared to currently used brick veneer house wall system