'n Verantwoording omtrent boks

Die afgelope jare het daar telkens stemme teen boks opgegaan en is telkens met logiese en onlogiese — maar altyd heftige — stemme daarop geantwoord deur voorstanders van boks. Die opvallende van die saak is dat die aanvalle op boks eintlik m aar selde van Christelike en Calvinistiese kant opgaan en dat die verdedigers hulle wel soms in hierdie kamp bevind. Op die oomblik is hierdie saak weer heelwat onder bespreking. In ’n ander verband was die skrywers hiervan die afgelope jaar af en toe met hierdie onderwerp doenig en hier­ die artikel gee versamelde inligting en gedagtes weer

The Burrell-Optical-Kepler-Survey (BOKS). I. Survey Description and Initial Results

We present the initial results of a 40 night contiguous ground-based campaign of time series photometric observations of a 1.39 deg^2 field located within the NASA Kepler Mission field of view. The goal of this pre-launch survey was to search for transiting extrasolar planets and to provide independent variability information of stellar sources. We have gathered a data set containing light curves of 54,687 stars from which we have created a statistical sub-sample of 13,786 stars between 14 < r < 18.5 and have statistically examined each light curve to test for variability. We present a summary of our preliminary photometric findings including the overall level and content of stellar variability in this portion of the Kepler field and give some examples of unusual variable stars found within. We present a preliminary catalog of 2,457 candidate variable stars, of which 776 show signs of periodicity. We also present three potential exoplanet candidates, all of which should be observable by the Kepler mission

Kepler Observations of the Three Pre-Launch Exoplanet Candidates: Discover of Two Eclipsing Binaries and a New Exoplanet

Three transiting exoplanet candidate stars were discovered in a ground-based photometric survey prior to the launch of NASA's Kepler mission. Kepler observations of them were obtained during Quarter 1 of the Kepler mission. All three stars are faint by radial velocity follow-up standards, so we have examined these candidates with regard to eliminating false positives and providing high confidence exoplanet selection. We present a first attempt to exclude false positives for this set of faint stars without high-resolution radial velocity analysis. This method of exoplanet confirmation will form a large part of the Kepler mission follow-up for Jupiter-sized exoplanet candidates orbiting faint stars. Using the Kepler light curves and pixel data, as well as medium-resolution reconnaissance spectroscopy and speckle imaging, we find that two of our candidates are binary stars. One consists of a late-F star with an early M companion, while the other is a K0 star plus a late M-dwarf/brown dwarf in a 19 day elliptical orbit. The third candidate (BOKS-1) is an r = 15 G8V star hosting a newly discovered exoplanet with a radius of 1.12 R_(Jupiter) in a 3.9 day orbit

Clothing longevity perspectives: exploring consumer expectations, consumption and use

The production, distribution, use and end-of-life phases of the clothing lifecycle all have significant environmental impacts, but complete lifecycle assessment has identified that extending the active life of garments through design, use and re-use is the single most effective intervention in reducing the overall impact of the clothing industry (WRAP, 2011). In response, Government funded clothing longevity research seeks to develop and test industry-led design strategies to influence and enable consumers to keep garments in active use for longer (Cooper et al., 2014). While recent UK research has indicated significant potential to influence more sustainable consumer behaviour (Langley et al., 2013; YouGov, 2012), up-to-date qualitative research is required to discover how consumer attitudes, expectations and behaviours in relation to clothing lifetimes affects garment care and clothing use. This will help to inform industry-led strategies by understanding where effective changes can be made that will potentially have most impact. This paper presents preliminary findings from a Defra funded action based research project, ‘Strategies to improve design and testing for clothing longevity’. Qualitative research methods are used to explore consumer attitudes, expectations and behaviours at purchase, use and disposal stages of garment lifetimes, and gather data on practices of garment wash, wear, care and maintenance in everyday life. The research findings are discussed in relation to industry-led strategies aimed at extending the life of clothes

Design for sustainable behaviour: Investigating design methods for influencing user behaviour

This research aims to develop a design tool for product and service innovation which influences users towards more sustainable behaviour, reducing resource use and leading to a lower carbon footprint for everyday activities. The paper briefly explains the reasoning behind the tool and its structure, and presents an example application to water conservation with concept ideas generated by design students

A Stitch in Time: Changing Cultural Constructions of Craft and Mending

Over the course of the twentieth century, the availability of cheap, mass-produced fashion has contributed to a decline in everyday domestic mending skills. Indeed, as mass-manufactured goods have become cheaper for the global population it has become normative consumer behaviour to dispose of any item that is less than per-fect, even when the damage is entirely superficial, leading Clark to claim that: ‘mending has died out’ (2008: 435). However, in recent years there has been an apparent revival in domestic mending, aided and evidenced by the emergence of sewing and mending groups in the UK, mainland Europe and North America. This has coincided with a growing interest in more sustainable material goods (McDonough & Braungart 2002; Fletcher 2008), and a small body of academic work around the notion of craftsmanship (e.g. Sennett 2008; Crawford 2009). Of particular interest here is the history of mending of clothing and household goods, as well as recent incarnations of mending as both an individual and group activity. In the past year, researchers from diverse theoretical backgrounds have also highlighted the role of mending in everyday material goods providing further insights into the subject (Laitala & Boks 2012; Middleton 2012; Portwood-Stacer 2012). An examination of mending reveals a complex picture in which gender, class, aesthetics and social motivations interweave with the imperatives of consumer culture. Whilst historically it is generally constructed as a feminine activity, and carried connotations of material deprivation, contemporary mending is often motivated by environmental concerns and a desire to reduce consumption. Ultimately, mending is demonstrated to be an under-researched subject loaded with cultural meaning, and ultimately, is shown to be anything but a trivial activity

Presenting the SCL model: adding value to business strategy through UCD principles

This paper presents the Sustainable Consumption Leveraging (SCL) Model and its toolkit, which was developed to help businesses examine their potential for enabling sustainable consumption whilst identifying areas of opportunity to improve their business model and value proposition. The paper begins by establishing the contribution of business towards sustainable consumption and sets out user-centred design (UCD) principles as a valuable approach to leverage sustainable consumption. The relationship between UCD principles and sustainable consumption in a business context was studied through qualitative research. The findings of in-depth interviews with experts, a focus group and a document analysis led to the construction of a theoretical framework, which was used to develop the SCL Model and its toolkit

Behaviour change at work: Empowering energy efficiency in the workplace through user-centred design

Copyright @ 2011 University of California eScholarship RepositoryCO2 emissions from non-domestic buildings - primarily workplaces - make up 18 percent of the UK's carbon footprint. A combination of technology advances and behavioural changes have the potential to make significant impact, but interventions have often been planned in ways which do not take into account the needs, levels of understanding and everyday behavioural contexts of building users - and hence do not achieve the hoped-for success.This paper provides a brief introduction to the Empower project, a current industrial-academic collaboration in the UK which is applying methods from user-centred design practice to understand diverse users' needs, priorities, mental models of energy and decision-making heuristics - as well as the affordances available to them - in a number of office buildings. We are developing and trialling a set of low-cost, simple software interventions tailored to multiple user groups with different degrees of agency over their energy use, which seek to influence more energy efficient behaviour at work in areas such as HVAC, lighting and equipment use. The project comprises an ethnographic research phase, a participatory design programme involving building users in the design of interventions, and iterative trials in a large office building in central London

Shape memory alloy actuators for active disassembly using ‘smart’ materials of consumer electronic products

This paper reports the preliminary to current development of Shape Memory Alloy (SMA) actuators within their application in ‘Active Disassembly using Smart Materials’ (ADSM). This non-destructive self-dismantling process is to aid recycling of consumer electronic products. Actuators were placed in single and multi-stage hierarchical temperature regimes after being embedded into macro and sub-assemblies of electronic product assemblies. Findings include active disassembly and a hierarchical dismantling regime for product dismantling using developed SMA actuators embedded into candidate products