3,169 research outputs found
Social Impact Measurement (SIM) experiencing and future Directions for the third sector organisations in the east of England.
Exploring ways to measure impact is not a new focus for the third sector or social enterprises, but one that is becoming more of a concern as organisations look for ways to improve what they do and demonstrate their impact to others. In part this requires a shift in thinking from
measuring outputs to measuring outcomes, and the challenge is to find ways of measuring the softer elements related to social inclusion. There is also interest from outside of organisations with pressure from philanthropic funds and public service commissioners to find ways of making
their decisions on how resources are allocated.
Social Impact Measurement (SIM) is the process by which an organisation provides evidence that its services are providing real and tangible benefits to people or the environment (SEEE 2009). Issue 2 of the EEDA Social Impact Measurement (SIM) project examines a range of SIM
models currently adopted by Third Sector Organisations and social enterprises. The aim is “Ultimately …. to gain a better understanding of the various social impact measurement models” (EEDA ITT 2009-082). Through the study of the experiences of a set of organisations, this
research will examine why organisations are measuring impact, how they are doing this, the challenges they face and how these can be overcome. This will involve a review and evaluation of a wide range of tools used by third sector organisations to measure the impact of the work
they do. It will provide guidance to assist Third Sector Organisations in selecting approaches to measuring impact and help public authorities to assess the claims made by those who are using impact measurement tools.
The research has involved a review of the literature and over 40 different methods commonly in use in the UK. Following the development of questionnaires, interviews were carried out with 40 third sector organisations, 32 of whom had carried out social impact measurement. A further 10
organisations or individuals providing training in social impact measurement to organisations in the East of England Region were also interviewed. Data was also collected on the issues raised by the attendees of two training courses on social impact measurement, one covering Social Return On Investment (led by Kate Lee) and one covering Social Accounting and Audit (led by John Pearce) each of which had 12 participants. Finally feedback from participants of two
workshops, each with approximately 50 attendees, has been integrate
The cosmic evolution of radio-AGN feedback to z=1
This paper presents the first measurement of the radio luminosity function of
'jet-mode' (radiatively-inefficient) radio-AGN out to z=1, in order to
investigate the cosmic evolution of radio-AGN feedback. Eight radio source
samples are combined to produce a catalogue of 211 radio-loud AGN with
0.5<z<1.0, which are spectroscopically classified into jet-mode and
radiative-mode (radiatively-efficient) AGN classes. Comparing with large
samples of local radio-AGN from the Sloan Digital Sky Survey, the cosmic
evolution of the radio luminosity function of each radio-AGN class is
independently derived. Radiative-mode radio-AGN show an order of magnitude
increase in space density out to z~1 at all luminosities, consistent with these
AGN being fuelled by cold gas. In contrast, the space density of jet-mode
radio-AGN decreases with increasing redshift at low radio luminosities (L_1.4 <
1e24 W/Hz) but increases at higher radio luminosities. Simple models are
developed to explain the observed evolution. In the best-fitting models, the
characteristic space density of jet-mode AGN declines with redshift in
accordance with the declining space density of massive quiescent galaxies,
which fuel them via cooling of gas in their hot haloes. A time delay of 1.5-2
Gyr may be present between the quenching of star formation and the onset of
jet-mode radio-AGN activity. The behaviour at higher radio luminosities can be
explained either by an increasing characteristic luminosity of jet-mode
radio-AGN activity with redshift (roughly as (1+z) cubed) or if the jet-mode
radio-AGN population also includes some contribution of cold-gas-fuelled
sources seen at a time when their accretion rate was low. Higher redshifts
measurements would distinguish between these possibilities.Comment: Accepted for publication in MNRA
Lamellar Structures of MUC2-Rich Mucin: A Potential Role in Governing the Barrier and Lubricating Functions of Intestinal Mucus
Mucus is a ubiquitous feature of mammalian wet epithelial surfaces, where it lubricates and forms a selective barrier that excludes a range of particulates, including pathogens, while hosting a diverse commensal microflora. The major polymeric component of mucus is mucin, a large glycoprotein formed by several MUC gene products, with MUC2 expression dominating intestinal mucus. A satisfactory answer to the question of how these molecules build a dynamic structure capable of playing such a complex role has yet to be found, as recent reports of distinct layers of chemically identical mucin in the colon and anomalously rapid transport of nanoparticles through mucus have emphasized. Here we use atomic force microscopy (AFM) to image a MUC2-rich mucus fraction isolated from pig jejunum. In the freshly isolated mucin fraction, we find direct evidence for trigonally linked structures, and their assembly into lamellar networks with a distribution of pore sizes from 20 to 200 nm. The networks are two-dimensional, with little interaction between lamellae. The existence of persistent cross-links between individual mucin polypeptides is consistent with a non-self-interacting lamellar model for intestinal mucus structure, rather than a physically entangled polymer network. We only observe collapsed entangled structures in purified mucin that has been stored in nonphysiological conditions
Land application of sewage sludge (biosolids) in Australia: risks to the environment and food crops
Australia is a large exporter of agricultural products, with producers responsible for a range of quality assurance programs to ensure that food crops are free from various contaminants of detriment to human health. Large volumes of treated sewage sludge (biosolids), although low by world standards, are increasingly being recycled to land, primarily to replace plant nutrients and to improve soil properties; they are used in agriculture, forestry, and composted. The Australian National Biosolids Research Program (NBRP) has linked researchers to a collective goal to investigate nutrients and benchmark safe concentrations of metals nationally using a common methodology, with various other research programs conducted in a number of states specific to regional problems and priorities. The use of biosolids in Australia is strictly regulated by state guidelines, some of which are under review following recent research outcomes. Communication and research between the water industry, regulators and researchers specific to the regulation of biosolids is further enhanced by the Australian and New Zealand Biosolids Partnership (ANZBP).This paper summarises the major issues and constraints related to biosolids use in Australia using specific case examples from Western Australia, a member of the Australian NBRP, and highlights several research projects conducted over the last decade to ensure that biosolids are used beneficially and safely in the environment. Attention is given to research relating to plant nutrient uptake, particularly nitrogen and phosphorus (including that of reduced phosphorus uptake in alum sludge-amended soil); the risk of heavy metal uptake by plants, specifically cadmium, copper and zinc; the risk of pathogen contamination in soil and grain products; change to soil pH (particularly following lime-amended biosolids); and the monitoring of faecal contamination by biosolids in waterbodies using DNA techniques. Examples of products that are currently produced in Western Australia from sewage sludge include mesophilic anaerobically digested and dewatered biosolids cake, lime-amended biosolids, alum sludge and compost
Chandra Reveals Heavy Obscuration and Circumnuclear Star Formation in Seyfert 2 Galaxy NGC 4968
We present the Chandra imaging and spectral analysis of NGC 4968, a nearby (z
= 0.00986) Seyfert 2 galaxy. We discover extended (1 kpc) X-ray emission
in the soft band (0.5 - 2 keV) that is neither coincident with the narrow line
region nor the extended radio emission. Based on spectral modeling, it is
linked to on-going star formation (2.6-4 M_{\sun} yr). The soft
emission at circumnuclear scales (inner 400 pc) originates from hot gas,
with kT 0.7 keV, while the most extended thermal emission is cooler (kT
0.3 keV). We refine previous measurements of the extreme Fe K
equivalent width in this source (EW = 2.5 keV), which suggests
the central engine is completely embedded within Compton-thick levels of
obscuration. Using physically motivated models fit to the Chandra spectrum, we
derive a Compton-thick column density (
cm) and an intrinsic hard (2-10 keV) X-ray luminosity of
3-8 erg s (depending on the presumed geometry of
the obscurer), which is over two orders of magnitude larger than that observed.
The large Fe K EW suggests a spherical covering geometry, which could
be confirmed with X-ray measurements above 10 keV. NGC 4968 is similar to other
active galaxies that exhibit extreme Fe K EWs (i.e., 2 keV) in that
they also contain ongoing star formation. This work supports the idea that gas
associated with nuclear star formation may increase the covering factor of the
enshrouding gas and play a role in obscuring AGN.Comment: 11 pages, 8 figures, 4 tables. Accepted for publication in Ap
Optimising the location of antenatal classes
Objectives: To combine micro simulation and location-allocation techniques to determine antenatal class locations which minimise the distance travelled from home by potential users. Design: Micro simulation modelling and location-allocation modeling. Setting: City of Leeds, U.K. Participants: Potential users of antenatal classes. Methods: An individual-level micro simulation model was built to estimate the number of births for small areas by combining data from the UK Census 2001 and the Health Survey for England 2006. Using this model as a proxy for service demand, we then used a location-allocation model to optimize locations. Findings: Different scenarios show the advantage of combining these methods to optimize (re)locating antenatal classes and therefore reduce inequalities in accessing services for pregnant women. Key Conclusions: Use of these techniques should lead to better use of resources by allowing planners to identifyoptimal locations of antenatal classes which minimise women’s travel. Implications for practice: These results are especially important for health-care planners tasked with the difficult issue of targeting scarce resources in a cost-efficient, but also effective or accessible, manner
Spatially Resolved Outflows in a Seyfert Galaxy at z = 2.39
We present the first spatially resolved analysis of rest-frame optical and UV
imaging and spectroscopy for a lensed galaxy at z = 2.39 hosting a Seyfert
active galactic nucleus (AGN). Proximity to a natural guide star has enabled
high signal-to-noise VLT SINFONI + adaptive optics observations of rest-frame
optical diagnostic emission lines, which exhibit an underlying broad component
with FWHM ~ 700 km/s in both the Balmer and forbidden lines. Measured line
ratios place the outflow robustly in the region of the ionization diagnostic
diagrams associated with AGN. This unique opportunity - combining gravitational
lensing, AO guiding, redshift, and AGN activity - allows for a magnified view
of two main tracers of the physical conditions and structure of the
interstellar medium in a star-forming galaxy hosting a weak AGN at cosmic noon.
By analyzing the spatial extent and morphology of the Ly-alpha and
dust-corrected H-alpha emission, disentangling the effects of star formation
and AGN ionization on each tracer, and comparing the AGN induced mass outflow
rate to the host star formation rate, we find that the AGN does not
significantly impact the star formation within its host galaxy.Comment: 16 pages, 5 figures, accepted for publication in Ap
Observations from Preliminary Experiments on Spatial and Temporal Pressure Measurements from Near-Field Free Air Explosions
It is self-evident that a crucial step in analysing the performance of protective structures is to be able to accurately quantify the blast load arising from a high explosive detonation. For structures located near to the source of a high explosive detonation, the resulting pressure is extremely high in magnitude and highly non-uniform over the face of the target. There exists very little direct measurement of blast parameters in the nearfield, mainly attributed to the lack of instrumentation sufficiently robust to survive extreme loading events yet sensitive enough to capture salient features of the blast. Instead literature guidance is informed largely by early numerical analyses and parametric studies. Furthermore, the lack of an accurate, reliable data set has prevented subsequent numerical analyses from being validated against experimental trials. This paper presents an experimental methodology that has been developed in part to enable such experimental data to be gathered. The experimental apparatus comprises an array of Hopkinson pressure bars, fitted through holes in a target, with the loaded faces of the bars flush with the target face. Thus, the bars are exposed to the normally or obliquely reflected shocks from the impingement of the blast wave with the target. Pressure-time recordings are presented along with associated Arbitary-Langrangian-Eulerian modelling using the LS-DYNA explicit numerical code. Experimental results are corrected for the effects of dispersion of the propagating waves in the pressure bars, enabling accurate characterisation of the peak pressures and impulses from these loadings. The combined results are used to make comments on the mechanism of the pressure load for very near-field blast events
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