The quasi-particle gap in a disordered boson Hubbard model in two dimensions

We investigate the behavior of the quasi-particle energy gap near quantum phase transitions in a two-dimensional disordered boson Hubbard model at a commensurate filling. Via Monte Carlo simulations of ensembles with fixed numbers of particles, we observe the behavior of the gap as a function of the tuning parameter for various strength of diagonal disorder. For weak disorder, we find that gapped Mott insulating phase is sustained up to the transition point and disappears only in a superfluid, strongly supporting a direct Mott-insulator-to-superfluid transition. Bose glass behavior, insulating with vanishing gap, appears only when the strength of disorder is bigger than a critical value

A hybrid Christian identity in Philippians 1:15–18

There have been various studies on the passage of Philippians 1:15–18 but there have been few studies on a hybrid aspect of Christian identity implicated in the passage. The aim of the study was to reveal a hybrid aspect of the passage. The socio-historical setting for the study was the Greco-Roman period. For this study, I employed rhetorical criticism, a socio-linguistic approach and an anthropological linguistic approach to the passage, as well as the analysis of the socio-historical and cultural background of the passage. As a result, I found that Paul, who retained his Jewish identity but embraced Christian identity, tried to suggest such a new kind of identity for the intended audience and their community. In this article, I argued that Paul as a hybrid personality urged the Christian community in Philippi to have distinguished Christian habitus and field in Philippians 1:15–18. In particular, Paul persuaded his intended audience or readers to acknowledge and accept even those preachers who had questionable intentions into their Christian community. Such an inclusive attitude was to make a clear distinction between the community and their traditional Greco-Roman socio-cultural background. Contribution: The research on Philippians 1:15–18 reveals a hybrid aspect of Christian identity implicated in the passage. This research would contribute to the biblical studies of the Hervormde Teologiese Studies journal through its rhetorical, socio-linguistic and anthropological approach to the biblical passage of Philippians 1:15–18

Proto-type installation of a double-station system for the optical-video-detection and orbital characterisation of a meteor/fireball in South Korea

We give a detailed description of the installation and operation of a double-station meteor detection system which formed part of a research & education project between Korea Astronomy Space Science Institute and Daejeon Science Highschool. A total of six light-sensitive CCD cameras were installed with three cameras at SOAO and three cameras at BOAO observatory. A double-station observation of a meteor event enables the determination of the three-dimensional orbit in space. This project was initiated in response to the Jinju fireball event in March 2014. The cameras were installed in October/November 2014. The two stations are identical in hardware as well as software. Each station employes sensitive Watec-902H2 cameras in combination with relatively fast f/1.2 lenses. Various fields of views were used for measuring differences in detection rates of meteor events. We employed the SonotaCo UFO software suite for meteor detection and their subsequent analysis. The system setup as well as installation/operation experience is described and first results are presented. We also give a brief overview of historic as well as recent meteor (fall) detections in South Korea. For more information please consult http://meteor.kasi.re.kr .Comment: Technical/instrumentation description of a professional meteor detection system, 23 pages, 20 figures (color/monochrome), 5 tables, submitted to the Journal of Korean Astronomical Society (JKAS, http://jkas.kas.org/, http://jkas.kas.org/history.html

Large-Scale Highly Aligned Nanowire Printing

Nanowires (NWs) are 1D confined nanostructures; this geometry gives them unique properties that have been exploited in fabrication of high-density and high-tech electronic devices. Current method to produce NWs cannot fabricate large-scale-aligned NW arrays with precise control of length, orientation, location, and number of NWs individually; these inabilities hinder application of NWs in practical electronics. This paper describes e-nanowire printing, a method to print highly aligned NWs on a large scale, and then reviews recent progress in various electronic applications with highly aligned NWs. Finally, future research is suggested to advance nanoelectronics.1110Ysciescopu