Video Game Success Using D&M among Batam Consumers

This study aims to understand how to answer the success of video games on user satisfaction and use the research method DeLone and McLean Information Systems Succes Model on quantitative research. And it can be useful for the public to add new insights and for game developers to know the factors that influence user satisfaction in determining the success of online video games. The variables in this study are Perceived Enjoyment, Perceived ease of use, Perceived System quality, Perceived Service Quality, Satisfaction, and Continuance intention and population in Batam community, analysis using SPSS and AMOS. This research implies that game developers need to pay attention to and improve the quality of services provided to users to increase user satisfaction.   &nbsp

Distinctive patterns of macrolide-lincosamide-streptogramin resistance phenotypes and determinants amongst Staphylococcus aureus populations in Hong Kong

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Quantification of the performance of iterative and non-iterative computational methods of locating partial discharges using RF measurement techniques

Partial discharge (PD) is an electrical discharge phenomenon that occurs when the insulation materialof high voltage equipment is subjected to high electric field stress. Its occurrence can be an indication ofincipient failure within power equipment such as power transformers, underground transmission cableor switchgear. Radio frequency measurement methods can be used to detect and locate discharge sourcesby measuring the propagated electromagnetic wave arising as a result of ionic charge acceleration. Anarray of at least four receiving antennas may be employed to detect any radiated discharge signals, thenthe three dimensional position of the discharge source can be calculated using different algorithms. These algorithms fall into two categories; iterative or non-iterative. This paper evaluates, through simulation, the location performance of an iterative method (the standardleast squares method) and a non-iterative method (the Bancroft algorithm). Simulations were carried outusing (i) a "Y" shaped antenna array and (ii) a square shaped antenna array, each consisting of a four-antennas. The results show that PD location accuracy is influenced by the algorithm's error bound, thenumber of iterations and the initial values for the iterative algorithms, as well as the antenna arrangement for both the non-iterative and iterative algorithms. Furthermore, this research proposes a novel approachfor selecting adequate error bounds and number of iterations using results of the non-iterative method, thus solving some of the iterative method dependencies

Parasitic copepods from Egyptian Red Sea fishes: Bomolochidae Claus, 1875

© The Author(s) 2015 Open Access - This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The attached file is the published version of the article

A liquid metal encapsulation for analyzing porous nanomaterials by atom probe tomography

Analyzing porous (nano)materials by the atom probe tomography has been notoriously difficult. The electrostatic pressure intensifies stress at voids which results in premature failure of the specimen, and the electrostatic field distribution near voids lead to aberrations that are difficult to predict. Here we propose a new encapsulating method for a porous sample using a low-melting-point Bi-In-Sn alloy, known as Fields metal. As a model porous sample, we used single-crystalline wustite following direct hydrogen-reduced into iron. The complete encapsulation is performed using in-situ heating on the stage of the scanning-electron microscope up to approx. 70 Celsius. No visible corrosion nor dissolution of the sample occurred. Subsequently specimens are shaped by focused ion beam milling under cryogenic conditions at -190 Celsius. The proposed approach is versatile, can be applied to provide good quality atom probe datasets from microporous materials

Emergence of NDM-1-producing Enterobacteriaceae in China

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Debating migration and citizenship in a transnational world

Accelerating globalisation and contemporary transnational migration impact the way that citizenship is given meaning and practised by both states and citizens. Based on a study of the Singaporean state and highly skilled Singaporeans in London, this thesis advances an argument that transnational migration opens up new avenues to think through citizenship as a distinct spatial and socio-political formation. My thesis investigates, first, the manner in which Singaporean transnational migration informs existing understandings of highly skilled migration and second, the dynamics of the relationship between transnational migration and citizenship. I utilise discourse analysis, ethnography and in-depth interviews with Singaporean policymakers, London- based Singaporean community associations and individual Singaporean transmigrants to carry out my study. This thesis develops the scholarship on middling transnationalism by drawing attention to the fluidity of migration strategies and the institutional factors that motivate 'highly skilled' Singaporean migration to London. My research findings also contribute to geographical perspectives on transnational migration and citizenship in several ways. I introduce the concept of 'emotional citizenship' through narratives of place-based belonging. However, I also argue that identity politics disrupt notions of a coherent Singaporean identity and transnational community. I further propose that mobility creates spaces of contradiction in the way that citizenly 'rights and responsibilities' are relationally constructed by the Singaporean state and its citizens. Finally, I focus on Singaporean transnational families to highlight the spatial significance of the 'Asian' extended family in relation to citizenship issues. This analysis foregrounds the mutually constituting relationship between the emotional, political and social-cultural aspects of citizenship. Whilst this thesis presents empirical reflections and policy implications that are specific to the Singaporean case study, my findings also contribute to broader theoretical formulations of transnational migration and citizenship (trans)formations

Scale without Conformal Invariance: An Example

We give an explicit example of a model in D=4-epsilon space-time dimensions that is scale but not conformally invariant, is unitary, and has finite correlators. The invariance is associated with a limit cycle renormalization group (RG) trajectory. We also prove, to second order in the loop expansion, in D=4-epsilon, that scale implies conformal invariance for models of any number of real scalars. For models with one real scalar and any number of Weyl spinors we show that scale implies conformal invariance to all orders in perturbation theory.Comment: 13 pages, 2 figures, Erratum adde

Random network coding‐based optimal scheme for perfect wireless packet retransmission problems

Solving wireless packet retransmission problems (WPRTPs) using network coding (NC) approach is increasingly attracting research efforts. However, existing researches are almost all focused on solutions in Galois field GF(2), and consequently, the solutions found by these schemes are usually less optimal. In this paper, we focus on optimal NC‐based scheme for perfect WPRTPs (P‐WPRTPs) where, with respect to each receiver, a packet is either requested by or already known to it. The number of retransmitted packets in optimal NC‐based solutions to P‐WPRTPs is firstly analyzed and proved. Then, random network coding‐based optimal scheme (RNCOPT) is proposed for P‐WRPTPs. RNCOPT is optimal in the sense that it guarantees to obtain a valid solution with minimum number of packet retransmissions. Furthermore, in RNCOPT, each coding vector is generated using a publicly known pseudorandom function with a randomly selected seed. The seed, instead of the coding vector, is used as decoding information to be retransmitted together with the coded packet. Thus, packet overhead of RNCOPT is reduced further. Extensive simulations show that RNCOPT distinctively outperforms some previous typical schemes for P‐WPRTPs in saving the number of retransmitted packets. Copyright © 2011 John Wiley & Sons, Ltd. This paper studied Perfect Wireless Packet ReTransmission Problems (P‐WPRTPs) where, with respect to each receiver, a packet is either requested by or already known to it. The number of retransmitted packets in optimal NC‐based solutions to P‐WPRTPs was analyzed and proved. Then, random network coding‐based optimal scheme (RNCOPT) is proposed for P‐WPRTPs. RNCOPT is optimal in the sense that it guarantees to obtain a valid solution with minimum number of packet retransmissions.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/97523/1/wcm1122.pd

Predictive model of biliocystic communication in liver hydatid cysts using classification and regression tree analysis

<p>Abstract</p> <p>Background</p> <p>Incidence of liver hydatid cyst (LHC) rupture ranged 15%-40% of all cases and most of them concern the bile duct tree. Patients with biliocystic communication (BCC) had specific clinic and therapeutic aspect. The purpose of this study was to determine witch patients with LHC may develop BCC using classification and regression tree (CART) analysis</p> <p>Methods</p> <p>A retrospective study of 672 patients with liver hydatid cyst treated at the surgery department "A" at Ibn Sina University Hospital, Rabat Morocco. Four-teen risk factors for BCC occurrence were entered into CART analysis to build an algorithm that can predict at the best way the occurrence of BCC.</p> <p>Results</p> <p><b>I</b>ncidence of BCC was 24.5%. Subgroups with high risk were patients with jaundice and thick pericyst risk at 73.2% and patients with thick pericyst, with no jaundice 36.5 years and younger with no past history of LHC risk at 40.5%. Our developed CART model has sensitivity at 39.6%, specificity at 93.3%, positive predictive value at 65.6%, a negative predictive value at 82.6% and accuracy of good classification at 80.1%. Discriminating ability of the model was good 82%.</p> <p>Conclusion</p> <p>we developed a simple classification tool to identify LHC patients with high risk BCC during a routine clinic visit (only on clinical history and examination followed by an ultrasonography). Predictive factors were based on pericyst aspect, jaundice, age, past history of liver hydatidosis and morphological Gharbi cyst aspect. We think that this classification can be useful with efficacy to direct patients at appropriated medical struct's.</p