108 research outputs found
Hierarchical porous metal-organic framework monoliths
Hierarchical porous crystalline metal-organic framework (MOF) monoliths are prepared by powder-packing synthesis. The resulting MOF monolithic column shows fast and efficient chromatographic separation
The FSVS Cluster Catalogue: Galaxy Clusters and Groups in the Faint Sky Variability Survey
We describe a large sample of 598 galaxy clusters and rich groups discovered
in the data of the Faint Sky Variability Survey. The clusters have been
identified using a fully automated, semi-parametric technique based on a
maximum likelihood approach applied to Voronoi tessellation, and enhanced by
colour discrimination. The sample covers a wide range of richness, has a
density of ~28 clusters per sqdeg, and spans a range of estimated redshifts of
0.05 = 0.345. Assuming the presence of a cluster red
sequence, the uncertainty of the estimated cluster redshifts is assessed to be
\~0.03. Containing over 100 clusters with z > 0.6, the catalogue contributes
substantially to the current total of optically-selected, intermediate-redshift
clusters, and complements the existing, usually X-ray selected, samples. The
FSVS fields are accessible for observation throughout the whole year, making
them particularly suited for large follow-up programmes. The construction of
this FSVS Cluster Catalogue completes a fundamental component of our continuing
programmes to investigate the environments of quasars and the chemical
evolution of galaxies. We publish here the list of all clusters with their
basic parameters, and discuss some illustrative examples in more detail. The
full FSVS Cluster Catalogue, together with images and lists of member galaxies
etc., will be issued as part of the ``NOAO data products'', and accessible at
http://www.noao.edu/dpp/. We describe the format of these data and access to
them.Comment: 19 pages and 17 figures, MNRAS accepte
Cabazitaxel for hormone-relapsed metastatic prostate cancer previously treated with a docetaxel-containing regimen (review of TA255)
Changes in quality of life following hypoglycaemia in adults with type 2 diabetes: a systematic review of longitudinal studies
AIM: To conduct a systematic review of published studies reporting on the longitudinal impacts of hypoglycaemia on quality of life (QoL) in adults with type 2 diabetes.
METHOD: Database searches with no restrictions by language or date were conducted in MEDLINE, Cochrane Library, CINAHL and PsycINFO. Studies were included for review if they used a longitudinal design (e.g. cohort studies, randomised controlled trials) and reported on the association between hypoglycaemia and changes over time in patient-reported outcomes related to QoL.
RESULTS: In all, 20 longitudinal studies published between 1998 and 2020, representing 50,429 adults with type 2 diabetes, were selected for review. A descriptive synthesis following Synthesis Without Meta-analysis guidelines indicated that self-treated symptomatic hypoglycaemia was followed by impairments in daily functioning along with elevated symptoms of generalised anxiety, diabetes distress and fear of hypoglycaemia. Severe hypoglycaemic events were associated with reduced confidence in diabetes self-management and lower ratings of perceived health over time. Frequent hypoglycaemia was followed by reduced energy levels and diminished emotional well-being. There was insufficient evidence, however, to conclude that hypoglycaemia impacted sleep quality, depressive symptoms, general mood, social support or overall diabetes-specific QoL.
CONCLUSIONS: Longitudinal evidence in this review suggests hypoglycaemia is a common occurrence among adults with type 2 diabetes that impacts key facets in the physical and psychological domains of QoL. Nonetheless, additional longitudinal research is needed-in particular, studies targeting diverse forms of hypoglycaemia, more varied facets of QoL and outcomes assessed using hypoglycaemia-specific measures
Understanding interventions and outcomes in supported employment and individual placement support : A qualitative evidence synthesis
Economically developed economies continue to display large and long-standing disability employment gaps. Train-then-place activation models have traditionally dominated efforts to support non-working disabled people to gain employment but recently there has been increasing interest in place-then-train Supported Employment (SE) activation models. Evidence regarding the effectiveness of SE approaches is growing. However, authors have called for greater understanding of the mechanisms underpinning these interventions. We therefore carried out a systematic review of qualitative research to understand the processes operating. We carried out a systematic review of qualitative research around SE interventions carried out in developed countries since 2000 in any population excepting those with severe mental illness. We used thematic synthesis and logic modelling methods and assessed the quality of the body of literature. We identified and included 13 relevant source studies containing qualitative data. Key aspects of the programmes reported were the nature of the support, the employment advisor, and the type of employment. Influencing factors were client-related, employer and employment-related, programme-related, and system-related. Effects beyond the gaining of employment included a changed attitude to work, different outlook, increased skills and/or confidence. Suggested longer-term impacts were on health and wellbeing, financial security, independence, contribution to society and sense of belonging. This review adds to the growing evidence regarding the value of SE interventions for disabled people. It adds insights regarding the key elements of the programmes, and suggests outcomes beyond the measures typically considered within quantitative studies. [Abstract copyright: Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.
Understanding interventions and outcomes in supported employment and individual placement support: A qualitative evidence synthesis
Background
Economically developed economies continue to display large and long-standing disability employment gaps. Train-then-place activation models have traditionally dominated efforts to support non-working disabled people to gain employment but recently there has been increasing interest in place-then-train Supported Employment (SE) activation models.
Objective
Evidence regarding the effectiveness of SE approaches is growing. However, authors have called for greater understanding of the mechanisms underpinning these interventions. We therefore carried out a systematic review of qualitative research to understand the processes operating.
Methods
We carried out a systematic review of qualitative research around SE interventions carried out in developed countries since 2000 in any population excepting those with severe mental illness. We used thematic synthesis and logic modelling methods and assessed the quality of the body of literature.
Results
We identified and included 13 relevant source studies containing qualitative data. Key aspects of the programmes reported were the nature of the support, the employment advisor, and the type of employment. Influencing factors were client-related, employer and employment-related, programme-related, and system-related. Effects beyond the gaining of employment included a changed attitude to work, different outlook, increased skills and/or confidence. Suggested longer-term impacts were on health and wellbeing, financial security, independence, contribution to society and sense of belonging.
Conclusions
This review adds to the growing evidence regarding the value of SE interventions for disabled people. It adds insights regarding the key elements of the programmes, and suggests outcomes beyond the measures typically considered within quantitative studies
A single nucleotide polymorphism in the p27Kip1 gene is associated with primary patency of lower extremity vein bypass grafts
ObjectiveFactors responsible for the variability in outcomes after lower extremity vein bypass grafting (LEVBG) are poorly understood. Recent evidence has suggested that a single nucleotide polymorphism (SNP) in the promoter region of the p27Kip1 gene, a cell-cycle regulator, is associated with coronary in-stent restenosis. We hypothesized an association with vein graft patency.MethodsThis was a retrospective genetic association study nested within a prospective cohort of 204 patients from three referral centers undergoing LEVBG for claudication or critical ischemia. The main outcome measure was primary vein graft patency.ResultsAll patients were followed up for a minimum of 1 year with duplex graft surveillance (median follow-up, 893 days; interquartile range, 539-1315). Genomic DNA was isolated and SNP analysis for the p27Kip1-838C>A variants was performed. Allele frequencies were correlated with graft outcome using survival analysis and Cox proportional hazards modeling. The p27Kip1-838C>A allele frequencies observed were CA, 53%; CC, 30%; and AA, 17%, satisfying Hardy-Weinberg equilibrium. Race (P = .025) and history of coronary artery disease (P = .027) were different across the genotypes; all other baseline variables were similar. Primary graft patency was greater among patients with the -838AA genotype (75% AA vs 55% CA/CC at 3 years; P = .029). In a Cox proportional hazards model including age, sex, race, diabetes, critical limb ischemia, redo (vs primary) bypass, vein type, and baseline C-reactive protein level, the p27Kip1-838AA genotype was significantly associated with higher graft patency (hazard ratio for failure, 0.4; 95% confidence interval, 0.17-0.93). Genotype was also associated with early (0-1 month) changes in graft lumen diameter by ultrasound imaging.ConclusionsThese data suggest that the p27Kip1-838C>A SNP is associated with LEVBG patency and, together with previous reports, underscore a central role for p27Kip1 in the generic response to vascular injury
Two 100 Mpc-scale structures in the 3-D distribution of radio galaxies and their implications
We present unequivocal evidence for a huge (~80 x 100 x 100 Mpc^3)
super-structure at redshift z=0.27 in the 3-D distribution of radio galaxies
from the TONS08 sample, confirming tentative evidence for such a structure from
the 7C redshift survey (7CRS). A second, newly discovered super-structure is
also less securely found at redshift 0.35 (of dimensions ~100 x 100 x 100
Mpc^3). We present full observational details on the TONS08 sample which was
constructed to probe structures in the redshift range 0 < z < 0.5 by matching
NVSS sources with objects in APM catalogues to obtain a sample of optically
bright (E ~ R 3 mJy) radio
galaxies in the same 25 deg^2 area as part-II of the 7CRS. Out of the total
sample size of 84 radio galaxies, at least 25 are associated with the two ~100
Mpc-scale super-structures. We use quasi-linear structure formation theory to
estimate the number of such structures expected in the TONS08 volume if the
canonical value for radio galaxy bias is assumed. Under this assumption, the
structures represent ~ 4-5 sigma peaks in the primordial density field and
their expected number is low (~10^-2 - 10^-4). Fortunately, there are several
plausible explanations (many of which are testable) for these low probabilities
in the form of potential mechanisms for boosting the bias on large scales.
These include: the association of radio galaxies with highly biased rich
clusters in super-structures, enhanced triggering by group/group mergers, and
enhanced triggering and/or redshift space distortion in collapsing systems as
the growth of super-structures moves into the non-linear regime (abridged).Comment: Accepted for publication in MNRAS. 26 pages,16 figures. spectra can
be found in: http://www-astro.physics.ox.ac.uk/~brand/08_paper.ps.g
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