61,796 research outputs found
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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, âStrategies to improve design and testing for clothing longevityâ. 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
Exact and approximate dynamics of the quantum mechanical O(N) model
We study a quantum dynamical system of N, O(N) symmetric, nonlinear
oscillators as a toy model to investigate the systematics of a 1/N expansion.
The closed time path (CTP) formalism melded with an expansion in 1/N is used to
derive time evolution equations valid to order 1/N (next-to-leading order). The
effective potential is also obtained to this order and its properties
areelucidated. In order to compare theoretical predictions against numerical
solutions of the time-dependent Schrodinger equation, we consider two initial
conditions consistent with O(N) symmetry, one of them a quantum roll, the other
a wave packet initially to one side of the potential minimum, whose center has
all coordinates equal. For the case of the quantum roll we map out the domain
of validity of the large-N expansion. We discuss unitarity violation in the 1/N
expansion; a well-known problem faced by moment truncation techniques. The 1/N
results, both static and dynamic, are also compared to those given by the
Hartree variational ansatz at given values of N. We conclude that late-time
behavior, where nonlinear effects are significant, is not well-described by
either approximation.Comment: 16 pages, 12 figrures, revte
Space physics missions handbook
The purpose of this handbook is to provide background data on current, approved, and planned missions, including a summary of the recommended candidate future missions. Topics include the space physics mission plan, operational spacecraft, and details of such approved missions as the Tethered Satellite System, the Solar and Heliospheric Observatory, and the Atmospheric Laboratory for Applications and Science
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The sustainable clothing market: pragmatic strategies for UK fashion retailers
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Public understanding of sustainable clothing: a report to the Department for Environment, Food and Rural Affairs
Clementine Observations of the Zodiacal Light and the Dust Content of the Inner Solar System
Using the Moon to occult the Sun, the Clementine spacecraft used its
navigation cameras to map the inner zodiacal light at optical wavelengths over
elongations of 3-30 degrees from the Sun. This surface brightness map is then
used to infer the spatial distribution of interplanetary dust over heliocentric
distances of about 10 solar radii to the orbit of Venus. We also apply a simple
model that attributes the zodiacal light as being due to three dust populations
having distinct inclination distributions, namely, dust from asteroids and
Jupiter-family comets (JFCs), dust from Halley-type comets, and an isotropic
cloud of dust from Oort Cloud comets. The best-fitting scenario indicates that
asteroids + JFCs are the source of about 45% of the optical dust cross-section
seen in the ecliptic at 1 AU, but that at least 89% of the dust cross-section
enclosed by a 1 AU radius sphere is of a cometary origin. When these results
are extrapolated out to the asteroid belt, we find an upper limit on the mass
of the light-reflecting asteroidal dust that is equivalent to a 12 km asteroid,
and a similar extrapolation of the isotropic dust cloud out to Oort Cloud
distances yields a mass equivalent to a 30 km comet, although the latter mass
is uncertain by orders of magnitude.Comment: To be published in Icaru
Habeas Corpus in Peru: Myth and Reality
The purpose of the present article is not to criticize the laudable project of those whose object is to secure better protection for fundamental human rights, but rather to examine in detail the theory and practice of habeas corpus in one Latin American country, Peru, and to demonstrate that the greatest encroachments on human rights come not from political tyranny, as is popularly imagined, but from the malfunctioning of the legal system itself, against which even the most perfectly conceived habeas corpus is quite ineffective. It is trite but true that a legal system is only as effective as the human agency engaged in running it. It is sad to relate that, for all their apparent excellence on paper, the majority of Peruvian laws, as anyone with but slight acquaint- ance with the country can testify, are a dead letter. Of nothing is this truer than of the law relating to habeas corpus in Peru
A Sentencing Problem: How Far Is a Fall from Grace
It is now almost universally accepted that there are three possible bases underlying sentences imposed by the Courts, following some breach of the criminal law. These are generally described as retribution, deterrence and reformation. Occasionally these qualities are considered in combination under some such title as the aims of penal measures. Another factor, ever present in a vague though influential form, now seems to be emerging from the shadows to assume more definite shape. Yet to materialize is its relationship to the other established, uncontroverted aims. The emergent element may conveniently be termed public disapproval, under which may be subsumed all those social sentiments, tacit or express, which reflect in the view taken of the offender\u27s conduct. It is increasingly evident that imprecision in regard to the understanding of this factor and its relationship to the accepted sentencing criteria constitutes agreat obstacle to the rationalization of penal policy and is at the root of many of the inconsistencies into which Courts are forced from time to time
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Key factors influencing the sustainability impacts of purchase and post-purchase consumer decision-making
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