302 research outputs found
An evaluation of the use of electronic monitoring as a condition of bail in Scotland
The aims of the evaluation were to assess the implementation of EM bail in replacing custodial remands, and to conduct a cost analysis of EM bail in contrast to those given custody. The study included the collection of qualitative and quantitative data, matched comparison data and cost analysis. Interviews were conducted with 10 Steering Group members and 45 professionals (comprising the police, social work, procurators fiscal, clerks of court, judges, sheriffs, defence agents, advocates, the electronic monitoring companies and victims' agencies). Interviews with 16 bailees and 15 household members were also undertaken. Quantitative data were collected from various sources, namely: court pro formas, Reliance/Serco databases, court files, social work files, police records, Scottish Criminal Record Office and data provided by the Scottish Executive Justice Statistics Branch, the Scottish Court Service and the Scottish Prison Service. Data from 3 comparison sheriff courts also provided a range of information on accused remanded in custody or bailed with or without conditions in areas outwith the pilot sites to ascertain whether EM bail is being used as a direct alternative to custodial remand and to explore differences in final sentences for the 2 groups
Framework for Classifying Compliance and Medical Immediacy among Low-Acuity Presentations at an Urban Trauma Center
Background: This research offers two exploratory frameworks for medical regimen compliance and medical immediacy. The first classifies compliance awareness, compliance mitigation, and financial limitation for those patients that exhibit nonadherence with a medical regimen. The second classifies medical immediacy and characterizes avoidable utilization.
Methods: Representative sampling of adult patients presenting at an emergency department (62,000/ppy) triaged as low acuity; emergency department physician assessment of noncompliance with medical regimen for those patients with a complaint related to a chronic condition; and emergency department physician assessment of medical immediacy and avoidable utilization.
Results: Physicians report 48.3% (95% confidence interval (CI) 43.5% to 53.1%) of patients with at least a single chronic condition are presenting with symptoms or complaint related a chronic condition, and 39.6% (CI 31.7% to 47.4%) of these exhibit noncompliance with the medical regimen associated with that chronic condition. 16.4% (CI 6.6% to 26.1%) of the patients exhibit pseudo compliance, a belief that the medical regimen is in compliance when in fact it is not. If the patient had been in compliance, 85.9% (CI 77.0% to 94.8%) of the presenting conditions may have been mitigated. Noncompliance cases (34.5% (CI 22.0% to 47.1%)) are partly attributable to financial constraints. Further, 19.1% (CI 15.7% to 22.5%) are assessed as requiring no medical intervention and 3.4% (CI 1.8% to 4.9%) require immediate stabilization.
Conclusions: A large portion of low-acuity presentations are related to a chronic condition and noncompliance with the associated medical regimen contributes to the need to seek medical services. Interventions addressing literacy and financial constraints may increase compliance and decrease utilization
Physiological Response and Tissue Damage Following Different Depths of Impact in a Rodent Model of Mild Traumatic Brain Injury
Mild traumatic brain injury (mTBI) is a serious public health concern that can result in significant neurological and behavioral deficit. mTBI results from impact to the head and can be repetitive in nature, especially in sports and domestic violence cases. Our laboratory studies the effects of repetitive mTBI on risky choice behavior in rodents using a closed-head controlled cortical impact (CH-CCI) model of injury and a well-established probabilistic discounting task that assesses risk-based decision-making behavior. We have recently found that females, but not males, display transient increases in risky choice behavior following three CH-CI’s delivered at 5.5m/s velocity and 2.5 mm impact depth. These findings suggest that our injury parameters may produce marginally threshold influences on behavioral outcomes that do not allow observation of the extent of repetitive mTBI-induced effects and have prompted us to explore expansion of our model to include greater depths of injury. In the present work we subjected rats to a series of three fixed velocity impacts at depths of 2.5mm, 3.0mm, or 3.5mm. The goal was to compare physical manifestations of injury in male and female rats following different depths of injury. The survival rate, righting reflex time, skull injury observations, animal weights, and histological markers of tissue damage were evaluated post-injury. Our hypothesis was that these indices of injury would be more prominent as injury depth increased
Repetitive Mild Traumatic Brain Injury Impairs Performance in a Rodent Assay of Cognitive Flexibility
Mild traumatic brain injury (mTBI) occurs in almost 80% of the 3 million reported cases of TBI-related emergency department visits each year in the United States. The majority of mTBIs, sometimes classified as concussions, are due to sports-related activities and typically occur repeatedly over the course of an athlete’s career. mTBI symptoms are generally classified as either somatic or neuropsychiatric/cognitive in nature and include impairments in prefrontal cortex mediated functions, including attention, memory, processing speed, reaction times, problem solving, and cognitive flexibility. To date, there remains a major gap in our understanding of the behavioral manifestations, underlying neurobiology, and treatment of mTBI. An even greater gap exists in our understanding of the consequences of repeated mTBI incidents. The goal of the present study was to examine the effects of repetitive mTBI within a rodent assay of cognitive flexibility. Rats were exposed to a series of three closed head injuries (controlled cortical impact model) within a week prior to performing an automated strategy shifting task, which required rats to learn and shift strategies according to changing task demands. Rats initially acquired a visual cue strategy in which a light illuminated above one of two possible levers (left or right) indicated the correct response for reward. Twenty-four hours after initial acquisition, rats again performed the task using the visual cue strategy followed by a series of strategy shifting and reversal learning challenges. Repetitive mTBI reduced throughput scores, a performance index that blends accuracy and response speed, and increased reaction times within the task. These results indicate that performance and task efficiency in an operant test of cognitive flexibility are impaired after repetitive mTBI. As such, this model presents a useful approach for further investigating the behavioral deficits and potential treatment strategies for patients who have experienced multiple mTBI insults
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START (STrAtegies for RelaTives) study: a pragmatic randomised controlled trial to determine the clinical effectiveness and cost-effectiveness of a manual-based coping strategy programme in promoting the mental health of carers of people with dementia
Background
Two-thirds of people with dementia live at home, receiving most care from family carers, about 40% of whom have clinically significant depression or anxiety. This impacts on the person with dementia, families and society, predicting care breakdown. There are currently no clinically effective and cost-effective NHS family carer interventions.
Objectives
To assess the STrAtegies for RelaTives (START) intervention in the short (4 and 8 months) and long term (1 and 2 years) compared with treatment as usual (TAU).
Design
Randomised, parallel-group, superiority trial with blinded assessment recruiting participants 2 : 1 (intervention to TAU) to allow for therapist clustering.
Setting
Three UK mental health services and one neurological service.
Participants
Family carers of people with dementia.
Intervention
Eight-session manual-based coping intervention delivered by supervised psychology graduates to individuals.
Main outcome measures
Affective symptoms [Hospital Anxiety and Depression Scale-total (HADS-T)] and cost-effectiveness. Secondary measures: anxiety and depression symptoms and caseness, quality of life (QoL), abusive behaviour and long-term care home admission.
Results
Two hundred and sixty participants were randomised (173 intervention, 87 TAU). We used intention-to-treat analysis in the short term (152 intervention, 77 TAU) and in the long term (140 intervention, 69 TAU).
In the short term, the intervention group had lower HADS-T [mean difference –1.80, 95% confidence interval (CI) –3.29 to –0.31; p = 0.02] and higher quality-adjusted life-years (QALYs) (mean difference 0.03, 95% CI –0.01 to 0.08). Costs were no different between groups [mean £252 (95% CI –£28 to £565) for intervention group]. The cost-effectiveness acceptability curve showed a greater than 99% chance of being cost-effectiveness at a £30,000/QALY willingness-to-pay threshold and a high probability of cost-effectiveness based on the HADS-T score. Carers in the intervention group had less case-level depression [odds ratio (OR) 0.24, 95% CI 0.07 to 0.76], a trend towards reduced case-level anxiety (OR 0.30, 95% CI 0.08 to 1.05), lower Hospital Anxiety and Depression Scale-anxiety (HADS-A) (–0.91, 95% CI –1.76 to –0.07; p = 0.03) and Hospital Anxiety and Depression Scale-depression (HADS-D) (–0.91, 95% CI –1.71 to –0.10; p = 0.03) and higher Health Status Questionnaire (HSQ) QoL (mean difference 4.09, 95% CI 0.34 to 7.83). Group differences in abusive behaviour (OR 0.48, 95% CI 0.18 to 1.27) and the person with dementia’s quality of life-Alzheimer’s disease (QoL-AD) (mean increase 0.59, 95% CI –0.72 to 1.89) were not significant.
In the long term, the intervention group had lower HADS-T (mean difference –2.58, 95% CI –4.26 to –0.90; p = 0.03) and higher QALYs (mean difference 0.03, 95% CI –0.01 to 0.06). Carers in the intervention group had less case-level depression (OR 0.14, 95% CI 0.04 to 0.53), a trend towards reduced case-level anxiety (OR 0.57, 95% CI 0.26 to 1.24), lower HADS-A (–1.16, 95% CI –2.15 to –0.18) and HADS-D (1.45, 95% CI –2.32 to –0.57), and higher HSQ (mean difference 7.47, 95% CI 2.87 to 12.08). Thirty-two (18.7%) people with dementia in the intervention group and 17 (20.2%) in TAU were admitted to a care home (hazard ratio 0.83, 95% CI 0.44 to 1.56; p = 0.56). There were no significant differences between groups in abusive behaviour (OR 0.83, 95% CI 0.36 to 1.94), the person with dementia’s QoL-AD (0.17, 95% CI –1.37 to 1.70) or costs (£336, 95% CI –£223 to £895) for intervention group. The probability that the intervention would be seen as cost-effective at £30,000/QALY threshold and cost-effectiveness on the HADS-T remained high.
Conclusions
The START intervention was clinically effective and cost-effective in the short and longer term. The results are robust to the sensitivity analyses performed. Future work is needed to consider mechanism of action; the effects on people with dementia in clinical terms (cognition, neuropsychiatric symptoms, longer-term care home admission); and on health and social care costs. In addition, we will explore the effects of carer abusive behaviour on the care recipient’s care home admission and if this then reduces abusive behaviour. We would also like to implement START and evaluate this implementation in clinical practice.
Trial registration
Current Controlled Trials ISCTRN70017938.
Funding
The National Institute for Health Research Health Technology Assessment programme
Comparative genomics provides insights into the lifestyle and reveals functional heterogeneity of dark septate endophytic fungi
Dark septate endophytes (DSE) are a form-group of root endophytic fungi with elusive functions. Here, the genomes of two common DSE of semiarid areas, Cadophora sp. and Periconia macrospinosa were sequenced and analyzed with another 32 ascomycetes of different lifestyles. Cadophora sp. (Helotiales) and P. macrospinosa (Pleosporales) have genomes of 70.46 Mb and 54.99 Mb with 22,766 and 18,750 gene models, respectively. The majority of DSE-specific protein clusters lack functional annotation with no similarity to characterized proteins, implying that they have evolved unique genetic innovations. Both DSE possess an expanded number of carbohydrate active enzymes (CAZymes), including plant cell wall degrading enzymes (PCWDEs). Those were similar in three other DSE, and contributed a signal for the separation of root endophytes in principal component analyses of CAZymes, indicating shared genomic traits of DSE fungi. Number of secreted proteases and lipases, aquaporins, and genes linked to melanin synthesis were also relatively high in our fungi. In spite of certain similarities between our two DSE, we observed low levels of convergence in their gene family evolution. This suggests that, despite originating from the same habitat, these two fungi evolved along different evolutionary trajectories and display considerable functional differences within the endophytic lifestyle
Chemical and Photometric Evolution of Extended Ultraviolet Disks: Optical Spectroscopy of M83 (NGC5236) and NGC4625
We present the results from the analysis of optical spectra of 31
Halpha-selected regions in the extended UV (XUV) disks of M83 (NGC5236) and
NGC4625 recently discovered by GALEX. The spectra were obtained using IMACS at
Las Campanas Observatory 6.5m Magellan I telescope and COSMIC at the Palomar
200-inch telescope, respectively for M83 and NGC4625. The line ratios measured
indicate nebular oxygen abundances (derived from the R23 parameter) of the
order of Zsun/5-Zsun/10. For most emission-line regions analyzed the line
fluxes and ratios measured are best reproduced by models of photoionization by
single stars with masses in the range 20-40 Msun and oxygen abundances
comparable to those derived from the R23 parameter. We find indications for a
relatively high N/O abundance ratio in the XUV disk of M83. Although the
metallicities derived imply that these are not the first stars formed in the
XUV disks, such a level of enrichment could be reached in young spiral disks
only 1 Gyr after these first stars would have formed. The amount of gas in the
XUV disks allow maintaining the current level of star formation for at least a
few Gyr.Comment: 52 pages, 8 tables, 7 figures, accepted for publication in Ap
The GALEX Arecibo SDSS Survey. I. Gas Fraction Scaling Relations of Massive Galaxies and First Data Release
We introduce the GALEX Arecibo SDSS Survey (GASS), an on-going large program
that is gathering high quality HI-line spectra using the Arecibo radio
telescope for an unbiased sample of ~1000 galaxies with stellar masses greater
than 10^10 Msun and redshifts 0.025<z<0.05, selected from the SDSS
spectroscopic and GALEX imaging surveys. The galaxies are observed until
detected or until a low gas mass fraction limit (1.5-5%) is reached. This paper
presents the first Data Release, consisting of ~20% of the final GASS sample.
We use this data set to explore the main scaling relations of HI gas fraction
with galaxy structure and NUV-r colour. A large fraction (~60%) of the galaxies
in our sample are detected in HI. We find that the atomic gas fraction
decreases strongly with stellar mass, stellar surface mass density and NUV-r
colour, but is only weakly correlated with galaxy bulge-to-disk ratio (as
measured by the concentration index of the r-band light). We also find that the
fraction of galaxies with significant (more than a few percent) HI decreases
sharply above a characteristic stellar surface mass density of 10^8.5 Msun
kpc^-2. The fraction of gas-rich galaxies decreases much more smoothly with
stellar mass. One of the key goals of GASS is to identify and quantify the
incidence of galaxies that are transitioning between the blue, star-forming
cloud and the red sequence of passively-evolving galaxies. Likely transition
candidates can be identified as outliers from the mean scaling relations
between gas fraction and other galaxy properties. [abridged]Comment: 25 pages, 12 figures. Accepted for publication in MNRAS. Version with
high resolution figures available at
http://www.mpa-garching.mpg.de/GASS/pubs.ph
Idiopathic interstitial pneumonia: Do community and academic physicians agree on diagnosis?
Rationale: Treatment and prognoses of diffuse parenchymal lung
diseases (DPLDs) varies by diagnosis. Obtaining a uniform diagnosis
among observers is difficult.
Objectives: Evaluate diagnostic agreement between academic and
community-based physicians for patients with DPLDs, and determine
if an interactive approach between clinicians, radiologists,
and pathologists improved diagnostic agreement in community
and academic centers.
Methods: Retrospective review of 39 patients with DPLD. A total of
19 participants reviewed cases at 2 community locations and 1
academic location. Information from the history, physical examination,
pulmonary function testing, high-resolution computed tomography,
and surgical lung biopsy was collected. Data were presented
in the same sequential fashion to three groups of physicians on
separate days.
Measurements and Main Results: Each observer’s diagnosis was coded
into one of eight categories. A statistic allowing formultiple raters
was used to assess agreement in diagnosis. Interactions between
clinicians, radiologists, and pathologists improved interobserver
agreement at both community and academic sites; however, final
agreement was better within academic centers (Kappa= 0.55–0.71) than
within community centers (Kappa=0.32–0.44). Clinically significant
disagreement was present between academic and communitybased
physicians (Kappa=0.11–0.56). Community physicians were more
likely to assign a final diagnosis of idiopathic pulmonary fibrosis
compared with academic physicians.
Conclusions: Significant disagreement exists in the diagnosis of
DPLD between physicians based in communities compared with
those in academic centers. Wherever possible, patients should be
referred to centers with expertise in diffuse parenchymal lung disorders
to help clarify the diagnosis and provide suggestions regarding
treatment options.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/91941/1/2007 AJRCCM Idiopathic interstitial pneumonia - Do community and academic physicians agree on diagnosis.pd
The role of grassland sward islets in the distribution of arthropods in cattle pastures
1. It is well documented that cattle reduce their grazing activity in the vicinity of cattle dung, which gives rise to distinct patches, or islets as they have been termed, of longer sward. The influence of such islets on pasture utilisation and agronomic performance has been widely studied, but very little information is available concerning their influence on grassland biodiversity.
2. In this study the abundance and distribution of arthropods in relation to islets was assessed, using suction sampling, at 26 commercial farms and in a replicated pasture management experiment in the south and east of Ireland.
3. Islets were found to cover approximately 24% of pastures and to contain between 40% and 50% of arthropod individuals.
4. Islets consistently contained a higher density of arthropods, even when the difference in mean sward height between islets and more strongly grazed sward was accounted for. The relative concentration of arthropods in islets declined with increasing mean sward height, which may be related to the recovery of well-grazed non-islet sward. Islets appear to act as refugia from sward removal.
5. The potential importance of islets in maintaining arthropod biodiversity within intensively grazed pastures and the wider grass-based farming landscape is discussed, particularly with reference to standard agronomic practices such as sward topping and chain harrowing, which aim to remove the sward heterogeneity created by grazing livestock
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