2,064,298 research outputs found
Recommended from our members
Effective use of data in waste strategy planning in the UK
Effective waste strategy planning for sustainable and integrated waste management is predicated on high-quality information. However a review of recent local authority waste strategies in England, part of a research project into effective use of data and analysis in waste strategy planning carried out by researchers at the Open University, showed little evidence of being based on thorough analysis. Lack of good data on many aspects of performance restricts what can be achieved in planning better integrated, more sustainable waste management provision. This paper draws from the results of that project and illustrates improvements that could be achieved by using better quality data and analysis to inform decision making. The research explored the use of various types of information and analysis including compositional analysis and establishing diversion rates; scenario building; applications of geographical information systems; understanding and measuring public participation; the use of trials to collect relevant data; and understanding of the effects of recycling schemes on residual waste composition. The general principals and methodologies of each approach are illustrated by examples derived from the authors’ analysis and interpretation of local authority data provided by case study partners, and show how local data can provide relevant and effective local answers
The Changing Borders of Juvenile Justice: Transfer of Adolescents to the Adult Criminal Court
Network researchers examine whether the prosecution of adolescents as adults reduces crime and recitivism. Their research capitalizes on unique conditions in the New York City region, where the laws of two states, New York State and New Jersey, span the border of a single metropolitan area. On the New York side of the border, juveniles as young as 13 are charged in adult court, while on the New Jersey side, nearly all cases of juvenile offenders below the age of 18 are processed in juvenile court. By comparing similar offenders in the two settings who were arrested and charged with the same felony offenses during the same time period, the researchers were able to determine whether treating juveniles as adults in the legal system is an effective deterrent to crime
Random excitation of a system with bilinear hysteresis
An analysis is made of the response of a system with bilinear hysteresis to random excitation. It is shown that for moderately large inputs, the additional damping created by the bilinear hysteresis decreases the mean squared deflection compared with that for a linear system with the same viscous damping. However, for large inputs, the decrease in the stiffness of the system due to the bilinear hysteresis causes the mean squared deflection to increase over that for the equivalent linear system
The HI gas content of galaxies around Abell 370, a galaxy cluster at z = 0.37
We used observations from the Giant Metrewave Radio Telescope to measure the
atomic hydrogen gas content of 324 galaxies around the galaxy cluster Abell 370
at a redshift of z = 0.37 (a look-back time of ~4 billion years). The HI 21-cm
emission from these galaxies was measured by coadding their signals using
precise optical redshifts obtained with the Anglo-Australian Telescope. The
average HI mass measured for all 324 galaxies is (6.6 +- 3.5)x10^9 solar
masses, while the average HI mass measured for the 105 optically blue galaxies
is (19.0 +- 6.5)x10^9 solar masses. The significant quantities of gas found
around Abell 370, suggest that there has been substantial evolution in the gas
content of galaxy clusters since redshift z = 0.37. The total amount of HI gas
found around Abell 370 is up to ~8 times more than that seen around the Coma
cluster, a nearby galaxy cluster of similar size. Despite this higher gas
content, Abell 370 shows the same trend as nearby clusters, that galaxies close
to the cluster core have lower HI gas content than galaxies further away. The
Abell 370 galaxies have HI mass to optical light ratios similar to local galaxy
samples and have the same correlation between their star formation rate and HI
mass as found in nearby galaxies. The average star formation rate derived from
[OII] emission and from de-redshifted 1.4 GHz radio continuum for the Abell 370
galaxies also follows the correlation found in the local universe. The large
amounts of HI gas found around the cluster can easily be consumed by the
observed star formation rate in the galaxies over the ~4 billion years (from z
= 0.37) to the present day.Comment: accepted by MNRA
Qualitative accounts of urban commuter cycling
Purpose ‐ The purpose of this paper is to explore the live experiences of urban commuter cycling (UCC). Design/methodology/approach ‐ In semi-structured interviews, participants described day-to-day experiences of UCC in a single English city. Verbatim transcripts were coded using the themes of time, space, body and human relations, and interpreted through the principles of hermeneutic phenomenology. Findings ‐ The nine participants (seven males, two females) were aged 27 to 54. Each regularly commuted by bicycle at least three times per week for "18 months" to "27 years". Strong influences on commuter cycling included the weather, daily tasks, cycling infrastructure, driver behaviour and the value of cycling for physical and mental well being. The contest for space was central to the UCC experience, with UCCs sensing they lacked respect despite feeling that they were "embodying citizenship" by enacting public policy. Due to their regular negative experiences, many UCCs were now willing to quit cycling and commute by car. Research limitations/implications ‐ Findings are limited to regular commuter cyclists and do little to describe the passage into regular cycling. Practical applications ‐ This paper highlights that cycle promoters and health educators may profit from focusing on road user interactions during the rush hour. Originality/value ‐ This paper addresses the untold day-to-day experiences of UCCs
VLA 1.4 GHz Catalogs of the Abell 370 and Abell 2390 Cluster Fields
We present 1.4 GHz catalogs for the cluster fields Abell 370 and Abell 2390
observed with the Very Large Array. These are two of the deepest radio images
of cluster fields ever taken. The Abell 370 image covers an area of 40'x40'
with a synthesized beam of ~1.7" and a noise level of ~5.7 uJy near field
center. The Abell 2390 image covers an area of 34'x34' with a synthesized beam
of ~1.4" and a noise level of ~5.6 uJy near field center. We catalog 200
redshifts for the Abell 370 field. We construct differential number counts for
the central regions (radius < 16') of both clusters. We find that the faint
(S_1.4GHz < 3 mJy) counts of Abell 370 are roughly consistent with the highest
blank field number counts, while the faint number counts of Abell 2390 are
roughly consistent with the lowest blank field number counts. Our analyses
indicate that the number counts are primarily from field radio galaxies. We
suggest that the disagreement of our counts can be largely attributed to cosmic
variance.Comment: 13 pages, accepted for publication in ApJ
An empirical study of inter-concept similarities in multimedia ontologies
Generic concept detection has been a widely studied topic in recent research on multimedia analysis and retrieval, but the issue of how to exploit the structure of a multimedia ontology as well as different inter-concept relations, has not received similar attention. In this paper, we present results from our empirical analysis of different types of similarity among semantic concepts in two multimedia ontologies, LSCOM-Lite and CDVP-206. The results show promise that the proposed methods may be helpful in providing insight into the existing inter-concept relations within an ontology and selecting the most facilitating set of concepts and hierarchical relations. Such an analysis as this can be utilized in various tasks such as building more reliable concept detectors and designing large-scale ontologies
Extending boundaries: young people as action researchers
Action research is generally undertaken by adults as a process of systematic action
planning and enquiry which can lead to improvements in aspects of their professional
practices. This article challenges and extends conventional understanding of action research
to show how young people, between the ages of 10 and 17, can interrogate and improve
their own practices – both individually and collectively. Brief accounts of four case studies
– three British and one South African – are presented, along the lines of a patchwork
narrative. Each ‘patch’ in turn contributes to the later collation of a theme and ideas that
‘stitch’ the studies together
Structural and biochemical insights of CypA and AIF interaction
The Cyclophilin A (CypA)/Apoptosis Inducing Factor (AIF) complex is implicated in the DNA degradation in response to various cellular stress conditions, such as oxidative stress, cerebral hypoxia-ischemia and traumatic brain injury. The pro-apoptotic form of AIF (AIF(Δ1-121)) mainly interacts with CypA through the amino acid region 370-394. The AIF(370-394) synthetic peptide inhibits complex formation in vitro by binding to CypA and exerts neuroprotection in a model of glutamate-mediated oxidative stress. Here, the binding site of AIF(Δ1-121) and AIF(370-394) on CypA has been mapped by NMR spectroscopy and biochemical studies, and a molecular model of the complex has been proposed. We show that AIF(370-394) interacts with CypA on the same surface recognized by AIF(Δ1-121) protein and that the region is very close to the CypA catalytic pocket. Such region partially overlaps with the binding site of cyclosporin A (CsA), the strongest catalytic inhibitor of CypA. Our data point toward distinct CypA structural determinants governing the inhibitor selectivity and the differential biological effects of AIF and CsA, and provide new structural insights for designing CypA/AIF selective inhibitors with therapeutic relevance in neurodegenerative diseases
PALS investigations of free volumes thermal expansion of J-PET plastic scintillator synthesized in polystyrene matrix
The polystyrene dopped with 2,5-diphenyloxazole as a primary fluor and
2-(4-styrylphenyl)benzoxazole as a wavelength shifter, prepared as a plastic
scintillator was investigated using positronium probe in wide range of
temperatures from 123 to 423 K. Three structural transitions at 260 K, 283 K
and 370 K were found in the material. In the o-Ps intensity dependence on
temperature, the significant hysteresis is observed. Heated to 370 K, the
material exhibits the o-Ps intensity variations in time.Comment: in Nukleonika 201
- …
