The reality paradox: Authenticity, fidelity, and the real in Battlefield 4

This article examines how the ‘Battlefield’ (EA Games) series of games generates authenticity in its soundtrack both through a meticulous approach to modelling the physical world and through the appropriation of audio characteristics from our, typically mediated, experience of conflict. It goes on to examine how we might reconcile such ‘authentic’ audio with the more ludic features of the soundtrack, required to support gameplay, that are typically presented as inauthentic. The absence of these sounds during narrative-based sequences and the acceptance of them without negative impact on immersion during gameplay implies that these inauthentic sounds appear not to disrupt the immersive qualities of the ‘authentic’ but only when clearly positioned as ego-ludic (heard only by the player, non-spatialized and synthetic in quality) and only within the context of challenge-based sequences of the game

City regions and polycentricity: the East Midlands urban network

The aims of this paper were to clarify the meaning of the terms city region and polycentricy and to then examine evidence on urban centres in the East Midlands to see how far these terms describe the present configuration of the region

Pb-Zn and minor U mineralization at Tyndrum, Scotland.

This mineralization occurs as veins and vein breccias in fractures associated with the Tyndrum-Glen Fyne fault. Quartz, galena and sphalerite, with minor chalcopyrite and baryte, are accompanied by small inclusions (in the galena-rich veins) of tetrahedrite, pyrargyrite, marcasite and pyrite. Uraniferous veins post-date the main Pb-Zn mineralization and contain uraninite, calcite, baryte, galena, sphalerite, chalcopyrite, argentite, chalcocite, tetrahedrite and safflorite. Fluid inclusion studies indicate a mineralizing solution with approx 20 wt.% equiv. NaCl + KCl, a Na/K ratio of 3:1 and which was boiling during mineral precipitation. The depositional sequence is discussed.-R.A.H

Constant amplitude and post-overload fatigue crack growth behavior in PM aluminum alloy AA 8009

A recently developed, rapidly solidified, powder metallurgy, dispersion strengthened aluminum alloy, AA 8009, was fatigue tested at room temperature in lab air. Constant amplitude/constant delta kappa and single spike overload conditions were examined. High fatigue crack growth rates and low crack closure levels compared to typical ingot metallurgy aluminum alloys were observed. It was proposed that minimal crack roughness, crack path deflection, and limited slip reversibility, resulting from ultra-fine microstructure, were responsible for the relatively poor da/dN-delta kappa performance of AA 8009 as compared to that of typical IM aluminum alloys

Environmental risk assessment of genetically modified plants - concepts and controversies

Background and purpose: In Europe, the EU Directive 2001/18/EC lays out the main provisions of environmental risk assessment (ERA) of genetically modified (GM) organisms that are interpreted very differently by different stakeholders. The purpose of this paper is to: (a) describe the current implementation of ERA of GM plants in the EU and its scientific shortcomings, (b) present an improved ERA concept through the integration of a previously developed selection procedure for identification of non-target testing organisms into the ERA framework as laid out in the EU Directive 2001/18/EC and its supplement material (Commission Decision 2002/623/EC), (c) describe the activities to be carried out in each component of the ERA and (d) propose a hierarchical testing scheme. Lastly, we illustrate the outcomes for three different crop case examples. Main features: Implementation of the current ERA concept of GM crops in the EU is based on an interpretation of the EU regulations that focuses almost exclusively on the isolated bacteria-produced novel proteins with little consideration of the whole plant. Therefore, testing procedures for the effect assessment of GM plants on non-target organisms largely follow the ecotoxicological testing strategy developed for pesticides. This presumes that any potential adverse effect of the whole GM plant and the plant-produced novel compound can be extrapolated from testing of the isolated bacteriaproduced novel compound or can be detected in agronomic field trials. This has led to persisting scientific criticism. Results: Based on the EU ERA framework, we present an improved ERA concept that is system oriented with the GM plant at the centre and integrates a procedure for selection of testing organisms that do occur in the receiving environment. We also propose a hierarchical testing scheme from laboratory studies to field trials and we illustrate the outcomes for three different crop case examples. Conclusions and recommendations: Our proposed concept can alleviate a number of deficits identified in the current approach to ERA of GM plants. It allows the ERA to be tailored to the GM plant case and the receiving environment

Assessment of risk of insect-resistant transgenic crops to nontarget arthropods

An international initiative is developing a scientifically rigorous approach to evaluate the potential risks to nontarget arthropods (NTAs) posed by insect-resistant, genetically modified (IRGM) crops. It adapts the tiered approach to risk assessment that is used internationally within regulatory toxicology and environmental sciences. The approach focuses on the formulation and testing of clearly stated risk hypotheses, making maximum use of available data and using formal decision guidelines to progress between testing stages (or tiers). It is intended to provide guidance to regulatory agencies that are currently developing their own NTA risk assessment guidelines for IRGM crops and to help harmonize regulatory requirements between different countries and different regions of the world

Low-Code Development Platform Comprehension in Building Business Software: A Case Study

Low-code development platforms (LCDPs) have been touted as computing tools that can equip novice users to create business software quickly without the need for formal programming expertise. LCDPs have also been viewed as attractive alternatives that reduce the time and resource constraints often associated with traditional software development. Gartner anticipates that LCDPs will be used to develop approximately 70% of all new business software applications by the end of 2025. Yet approximately one half of application developers studied possessed insufficient knowledge of these platforms, with some managers and traditional technologists expressing outright skepticism toward platform effectiveness. A lack of organizational comprehension related to LCDPs’ identity and capabilities, appropriateness of use, and success criteria result in wasted time and resources that contribute to this problem. In this flexible qualitative single case study of one medium-sized business in the northeastern United States, such concerns from literature are affirmed through the firm’s experiences with a popular LCDP: Microsoft Power Platform. The findings from this study indicate that pervasive organizational access to this platform combined with inadequate comprehension of tool purpose, deficient management support, functionality limitations, and scant formal governance are rationale that drive the need for enhanced organizational knowledge and usage. The results of this examination also reveal that, through formalized development practices, enhanced user training, and increased collaboration among developers and other stakeholders, improved LCDP comprehension may equip organizations to build more effective business software using these tools. Finally, the concerns that propel these improvements are viewed through a Christian worldview

Cultural experience tourist motives dimensionality : a cross-cultural study

This empirical research of tourists&rsquo; cultural experiences aims to advance theory by developing a measurement model of tourists&rsquo; motives towards attending cultural experiences for samples of Western and Asian tourists visiting Melbourne, Australia. Drawing upon Iso-Ahola&rsquo;s (1989) seeking/avoiding dichotomy theory for tourist motivation dimensions, the hypothesized dimensions primarily included escape and seeking-related dimensions, and some hedonic dimensions because of their relevance to aesthetic products (Hirschman &amp; Holbrook, 1982; Holbrook &amp; Hirschman, 1982), which are the context for this study. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used to crossvalidate the underlying dimensionality structure of cultural experience motives. A four-factor model was extracted from the EFA consistent with some theoretical formulations and was retained in the CFA. Specific cultural language group differences for the motive dimensions were also hypothesized between Western and Asian tourist samples, and within the Chinese- and Japanese-speaking Asian tourist samples, but not within the different cultural groups of English-speaking Western tourists. These cross-cultural hypotheses were tested for the motive dimension measurement model using invariance testing in CFA. The findings for the motive dimensions differing by cultural group were not as expected. Significant cultural differences between Western and Asian tourists were not found, but a new finding of this study was significant differences between English-speaking tourists in their motives for attending cultural experiences. Marketing implications of these findings are also presented.<br /