7,601 research outputs found
Window defect planar mapping technique
A method of planar mapping defects in a window having an edge surface and a planar surface. The method is comprised of steps for mounting the window on a support surface. Then a light sensitive paper is placed adjacent to the window surface. A light source is positioned adjacent to the window edge. The window is then illuminated with the source of light for a predetermined interval of time. Defects on the surface of the glass, as well as in the interior of the glass are detected by analyzing the developed light sensitive paper. The light source must be in the form of optical fibers or a light tube whose light transmitting ends are placed near the edge surface of the window
If Europe were a country...
If Europe were a country, what would its vital statistics show? Figure 1 show how crude mortality
rates – the probability of being dead within the next twelve months – have varied with age and with
time, for both males and females, within European nations from 1751 to 2011. The data are
arranged to form a Lexis surface, a statistical canvas where one of the axes represents year and the
other represents age (Lexis, 1875) At each combination of age and year is a value, mortality rate.
Conceptually, the mortality rate is the ‘height’ of the Lexis surface at each of many tens of thousands
of combinations of age and year, meaning the shaded contour plots here allow the visualisation of
tens of thousands of values ‘at a glance’. (Vaupel et al., 1987, 1997) By investing a little more than a
glance-worth of time to these visualisations it becomes possible to use them to identify a large
number of complex features and patterns in the data.(Minton, 2013, 2014; Minton et al., 2013)
All available data of European countries from the Human Mortality Database (HMD) were used.
(Human Mortality Database, 2014) For almost three quarters of a century, from 1751 to 1815, this
was just Sweden. From 1816 to 1850, six more countries’ records became available, then another
three during the second half of the nineteenth century. Data for the latter half of the twentieth
century were drawn from over twenty nations, a combined population size of almost half a billion
citizens.
The contour plots involved bolting together data from many different countries, and required relying
on a few countries to tell the start of the story of modern Europe. Despite this, and despite being the
main arena of two world wars and like the rest of the globe experiencing the deadliest infectious
disease outbreak ever recorded, the contour plots seem to tell a single, cohesive, positive story, of
vastly reduced infant mortality and the emergence of a childhood ever safer from harm, reduced risk
of death during adulthood, and the pushing back of biological ageing to ever great chronological
ages. Not quite ‘forever young’, but ‘younger, longer’
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Thamnophis butleri
Number of Pages: 2Integrative BiologyGeological Science
Delivering Better Housing and Employment Outcomes for Offenders on Probation
The report ‘Delivering better housing and employment outcomes for offenders on probation’ presents the findings of qualitative research which included fieldwork in six probation areas with professionals involved in the delivery of housing, employment, training and education
A new mechanism for non-locality from string theory: UV-IR quantum entanglement and its imprints on the CMB
Puff field theories (PFT) arise as the decoupling limits of D3 branes in a
Melvin universe and exhibit spatially non-local dynamics. Unlike other
realizations of non-locality in string theory, PFTs have full SO(3) rotational
symmetry. In this work, we analyze the strongly coupled regime of a PFT through
gravitational holography. We find a novel mechanism at the heart of the
phenomenon of non-locality: a quantum entanglement of UV and IR dynamics. In
the holographic bulk, this translates to an apparent horizon splitting the
space into two regions - with the UV completion of the PFT sitting at the
horizon. We unravel this intricate UV-IR setting and devise a prescription for
computing correlators that extends the original dictionary of holographic
renormalization group. We then implement a cosmological scenario where PFT
correlators set the initial conditions for primordial fluctuations. We compute
the associated power spectrum of the CMB and find that the scenario allows for
a distinct stringy signature.Comment: 40 pages, 15 figures; v2: citations added, minor figure corrections;
v3: minor changes, revised section 3.
The suburbanisation of poverty in British cities, 2004-16: extent, processes and nature
This paper tracks changes in relative centralisation and relative concentration of poverty for the 25 largest British cities, analysing change for poor and non-poor groups separately, and examining parallel changes in spatial segregation. The paper confirms that poverty is suburbanising, at least in the larger cities, although poverty remains over-represented in inner locations. Suburbanisation is occurring through both the reduction in low income populations in inner locations and the growth non-poor groups in these places, consistent with a process of displacement. Relative centralisation of poverty has fallen more stronglythan relative concentration of poverty, as the outward shift of poorer groups leaves them still living in denser neighbourhoods on average. The paper also shows that spatial segregation (unevenness) declined at the same time although it remains to be seen whether this indicates a long-term shift to less segregated urban forms or a transitional outcome before new forms of segregation emerge around suburban poverty concentrations
A comparison of cognitive function, sleep and activity levels in disease-free breast cancer patients with or without cancer-related fatigue syndrome.
Chronic fatigue is a feature in a subset of women successfully treated for breast cancer but is not well characterised. This study examines differences in objective cognitive function, activity levels and sleep in disease-free women who do and do not meet criteria for cancer-related fatigue syndrome (CRFS)
Simple Strategies for Broadcasting Repository Resources
4th International Conference on Open RepositoriesThis presentation was part of the session : Conference PostersNSDL's data repository for STEM education is designed to provide organized access to digital educational materials through its online portal, NSDL.org. The resources held within the NSDL data repository along with their associated metadata can also be found through partner and external portals, often with high quality, pedagogical contextual information intact. Repositories are not, however, usually described as web broadcast devices for their holdings. Providing multiple contextual views of educational resources where users look for them underscores the idea that digital repositories can be systems for the management, preservation, discovery and reuse of rich resources within a domain that can also be pushed out from a repository into homes and classrooms through multiple channels. This presentation reviews two interrelated methods and usage data that support the concept of â resource broadcastingâ from the NSDL data repository as a method that takes advantage of the natural context of resources to encourage their additional use as stand-alone objects outside of specific discipline-oriented portals.National Science Foundatio
Visualizing Europe's demographic scars with coplots and contour plots
We present two enhancements to existing methods for visualizing vital statistics data. Data from the Human Mortality Database were used and vital statistics from England and Wales are used for illustration. The simpler of these methods involves coplotting mean age of death with its variance, and the more complex of these methods is to present data as a contour plot. The coplot method shows the effect of the 20th century’s epidemiological transitions. The contour plot method allows more complex and subtle age, period and cohort effects to be seen.<p></p>
The contour plot shows the effects of broad improvements in public health over the 20th century, including vast reductions in rates of childhood mortality, reduced baseline mortality risks during adulthood and the postponement of higher mortality risks to older ages. They also show the effects of the two world wars and the 1918 influenza pandemic on men of fighting age, women and children. The contour plots also show a cohort effect for people born around 1918, suggesting a possible epigenetic effect of parental exposure to the pandemic which shortened the cohort’s lifespan and which has so far received little attention.<p></p>
Although this article focuses on data from England and Wales, the associated online appendices contain equivalent visualizations for almost 50 series of data available on the Human Mortality Database. We expect that further analyses of these visualizations will reveal further insights into global public health.<p></p>
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