646 research outputs found
Mammals of the Upper Henty River Region, Western Tasmania
A mammal survey was conducted in the Upper Henty River Region in western Tasmania. The area had been subject to much disturbance from mining, forestry and frequent fires and was covered by a maze of roads and tracks. Nineteen native species (including bats) were recorded. Four of the species listed in 1983 as occurring in the Lower Gordon Region, 80 km south of the present study area, were not recorded during our survey. It is considered that three of these species would probably have been found in the area with further searching. The fourth species, Mastacomysfuscus, is thought not to be present due to increased fire frequency in the sedgeland areas compared with the Lower Gordon Region. Potorous tridactylus is recorded for the first time from rainforest. Microhabitat selection by Rattus lutreolus and Pseudomys higginsi differed from that previously reported. Disturbance from road construction led to the creation of a new food source for Thylogale billardierii. The abundance of tracks in the area increased ease of movement for carnivorous mammals. Only one introduced species Felis catus, which is also known to occur in the Lower Gordon, was recorded. Disturbance had thus not led to an invasion of exotics
Contemporary medical television and crisis in the NHS
This article maps the terrain of contemporary UK medical television, paying particular attention to Call the Midwife as its centrepiece, and situating it in contextual relation to the current crisis in the NHS. It provides a historical overview of UK and US medical television, illustrating how medical television today has been shaped by noteworthy antecedents. It argues that crisis rhetoric surrounding healthcare leading up to the passing of the Health and Social Care Act 2012 has been accompanied by a renaissance in medical television. And that issues, strands and clusters have emerged in forms, registers and modes with noticeable regularity, especially around the value of affective labour, the cultural politics of nostalgia and the neoliberalisation of healthcare
Rapid Targeted Gene Disruption in Bacillus Anthracis
Anthrax is a zoonotic disease recognized to affect herbivores since Biblical times and has the widest range of susceptible host species of any known pathogen. The ease with which the bacterium can be weaponized and its recent deliberate use as an agent of terror, have highlighted the importance of gaining a deeper understanding and effective countermeasures for this important pathogen. High quality sequence data has opened the possibility of systematic dissection of how genes distributed on both the bacterial chromosome and associated plasmids have made it such a successful pathogen. However, low transformation efficiency and relatively few genetic tools for chromosomal manipulation have hampered full interrogation of its genome. Results: Group II introns have been developed into an efficient tool for site-specific gene inactivation in several organisms. We have adapted group II intron targeting technology for application in Bacillus anthracis and generated vectors that permit gene inactivation through group II intron insertion. The vectors developed permit screening for the desired insertion through PCR or direct selection of intron insertions using a selection scheme that activates a kanamycin resistance marker upon successful intron insertion. Conclusions: The design and vector construction described here provides a useful tool for high throughput experimental interrogation of the Bacillus anthracis genome and will benefit efforts to develop improved vaccines and therapeutics.Chem-Bio Diagnostics program from the Department of Defense Chemical and Biological Defense program through the Defense Threat Reduction Agency (DTRA) B102387MNIH GM037949Welch Foundation F-1607Cellular and Molecular Biolog
Reproducibility of measurement techniques used for creatine kinase, interleukin-6 and high-sensitivity C-reactive protein determination over a 48 h period in males and females
To examine the reproducibility of three measurement techniques used to determine creatine kinase, interleukin-6 and high-sensitivity C-reactive protein, 50 participants had blood samples taken on two occasions. Fingertip plasma samples were analysed using the Reflotron for CK determination. Venous blood samples collected into serum separator tubes were used for IL-6 and hs-CRP analyses. IL-6 was measured using an enzyme linked immune assay development kit. The hs-CRP was measured by an in-house ELISA method. Dependent t-tests showed no systematic bias between samples. The interdian CV was 20.0% for CK, 15.3% for IL-6 and 44.2% for hs-CRP. The intraclass correlation coefficient was 0.90 for CK, 0.98 for IL-6 and 0.70 for hs-CRP. The 95% limits of agreement were ?69.7 to 63.5 IU/L for CK, ?1.48 to 1.80?pg/ml for IL-6 and ?1.10 to 0.91??g/L for hs-CRP. The results demonstrate low absolute reproducibility, which may obscure a true experimental effect. ? 2018, ? 2018 Taylor & Francis.Association of Anaesthetists of Great Britain and Ireland, University of Western Sydney, Aspetar Orthopaedic and Sports Medicine Hospital, Central Manchester University Hospitals NHS Foundation Trust, Loughborough University, College of Arts and Sciences, Boston University, University of Hul
Reproducibility of creatine kinase: how useful is this measurement tool?
Establishing the reproducibility of a measurement is essential for repeated testing to ensure that any systematic change is a result of an external influence (i.e. intervention), as oppossed to normal random variation. Although some degree of error is inherent in any measure, a measurement tool should yield consistent results that do not fluctuate to an unacceptable degree from one test to another. Creatine kinase (CK) is consistently measured in the blood as a marker of exercise induced muscle damage (EIMD). However, its usefulness as a predictive tool to examine the temporal pattern, and magnitude of muscle damage has been questioned. PURPOSE:The main aim of the present study was to employ a variety of reproducibility statistics in order to examine the typical level of measurement error for CK. METHODS: Fifty (36 male, 14 female), apparently healthy participants completed three trials on three separate occasions with each trial separated by 48 - 72 h. The initial trial served as a familiarisation. During trials 2 and 3 (48 h), CK measures were obtained using standard fingerprick technique, and analysed in duplicate immediatley using a colorimetric assay procedure. Each participant completed their trials at the same time of day, following identical pre-test procedures. RESULTS: The intra-test coefficient of variation (CV) within our laboratory was 9%. Dependent t-tests indicated there was no systematic bias between trials (p = 0.82). The interdian CV displayed low reproducibility (20%). Furthermore, the 95% limits of agreement (LoA) were -69.7 to 63.5 iµ/L. However, the intraclass correlation coefficient (ICC) was 0.90, which can be clasified as displaying ‘high’ reproducibility. CONCLUSION: The interdian CV demonstrates that under identical resting conditions (48 h apart), CK displays inherent low absoulte reproducibility, which may obscure a true experimental effect. However, interpretation of the ICC, suggests that CK has high relative reproducibility. The high range of observed CK values is thought to have increased the size of the correlation. Subsequently, an indivdual change in CK following EIMD may not be indicative of the magnitude of damage, and may simply be a result of the inherent variation (e.g. biological). Therefore, it is advised that caution should be taken when using CK within experimental research, and as an indication of when an athlete has recovered, and is able to recommence training
Poly-use of cannabis and other substances among juvenile-justice involved youth: variations in psychological and substance-related problems by typology
Background:
Adolescent cannabis use is associated with increased risk for psychological problems, with evidence for more severe problems among youth who use cannabis in combination with other substances (i.e., polysubstance use). Juvenile offenders engage in both cannabis use and polysubstance use at higher rates than the general adolescent population. Yet, limited research has examined the relationship between cannabis poly-use (e.g., cannabis and alcohol use) and functional or psychological problems among juvenile offenders.
Objectives:
The current study addresses this gap by examining the association of polysubstance use of cannabis compared to cannabis only use with cognitive functioning, psychological distress, and substance-related problems among juvenile detainees.
Methods:
Participants were 238 detained youth ages 12–18 (80.4% male, 77.3% non-White) who completed assessments of substance use, intellectual functioning, psychological symptoms, and substance-related problems. Youth were also assessed by a clinical psychologist for substance use disorder.
Results:
Four cannabis-use typologies were identified; cannabis and alcohol use was the largest class, followed by cannabis only use, cannabis, alcohol and other drug use, then cannabis and other drug use. Polysubstance use was associated with lower scores on measures of intellectual functioning, more externalizing and internalizing symptomology, and more substance-related problems relative to cannabis only use. However, the relationship between polysubstance use and problems varied by typology.
Conclusions:
Findings suggest that justice-involved youth engaged in polysubstance use may be at greater need for concurrent academic, affective, and behavioral support in their rehabilitation and transition back to the community
Regulation of Leucine-Rich Repeat Kinase 2 by inflammation and IL-4
Mutations in Leucine-Rich Repeat protein Kinase 2 (LRRK2) are associated with Parkinson’s disease (PD) and Crohn’s disease (CD), but the regulation of LRRK2 during inflammation remains relatively unexplored. Here we developed a flow cytometry-based assay to assess LRRK2 activity in individual cells and created an EGFP-LRRK2-knock-in reporter mouse to analyse cell-specific LRRK2 expression. Using these tools, we catalogued LRRK2 level and activity in splenic and intestinal tissues. Inflammation increased LRRK2 expression and activity in B-cells, immature neutrophils and immature monocytes, but decreased these in dendritic cells and eosinophils. In mature neutrophils, inflammation stimulated LRRK2 activity but reduced EGFP-LRRK2 level. A kinase-activating PD-associated R1441C-LRRK2 mutation exacerbated inflammation-induced activation of LRRK2 specifically in monocytes and macrophages without affecting LRRK2 levels. Finally, we identified IL-4 as a novel factor that upregulated LRRK2 expression and activity in B-cells in vitro, replicating the inflammatory effects observed in vivo. Our findings provide valuable new insights into the regulation of the LRRK2 pathway in immune cells, crucial for understanding LRRK2 and its therapeutic potential in inflammatory diseases such as CD
Endless Pressure: Life on a Low Income in Austere Times
© 2016 The Authors Social Policy & Administration Published by John Wiley & Sons Ltd Much has been written that details the decline in living standards following the ‘credit crunch’ in the UK. It remains that we understand to a lesser degree the lived reality of poverty through the Great Recession and into the era of austerity. This article draws on testimonies of 62 participants from low income households conducted in three different areas of the UK during 2012–13 to document the pressures that this period brought to bear on these households. According to these testimonies, the experience of poverty intensified in key respects: first, participants reported feeling, more than ever before, that they were ‘existing, rather than living’ due to the meagre budgets they were forced to live on; second, the precarious nature of work and social security contributed to a sense of insecurity that was all pervasive in our participants' lives; third, due to the pejorative political rhetoric and media coverage of poverty, our participants felt that their lives were placed under increased scrutiny which deleteriously impacted their wider relationships and sense of belonging. Our analysis demonstrates the profound consequences for those living on low incomes of the continued shift to residual forms of state welfare and the increased reliance on the ‘Big Society’ as a means to deal with the pressures identified in this article
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Barriers and enablers to implementation of the therapeutic engagement questionnaire in acute mental health inpatient wards in England: A qualitative study.
A strong association exists between the quality of nurse-service user therapeutic relationship and care outcomes on acute mental health inpatient wards. Despite evidence that service users desire improved therapeutic engagement, and registered mental health nurses recognize the benefits of therapeutic relationships, such interactions remain sub-optimal. There is a dearth of evidence on factors influencing implementation of interventions to support and encourage therapeutic engagement. This study aimed to understand the barriers and enablers to implementation of the Therapeutic Engagement Questionnaire (TEQ), across fifteen acute inpatient wards in seven English mental health organizations. Qualitative methods were used in which data were collected from ethnographic field notes and documentary review, coded, and analysed using thematic analysis. Theoretical framing supported data analysis and interpretation. Reporting adheres to the Standards for Reporting Qualitative Research. The TEQ as an evidence-based intervention co-produced with service users and nurses was valued and welcomed by many nurse directors, senior clinicians, and ward managers. However, a range of practical and perceptual factors impeded implementation. Furthermore, many existing contextual challenges for intervention implementation in acute inpatient wards were magnified by the COVID-19 pandemic. Suitable facilitation to address these barriers can help support implementation of the TEQ, with some transferability to implementation of other interventions in these settings. Our study suggests several facilitation methods, brought together in a conceptual model, including encouragement of reflective, facilitative discussion meetings among stakeholders and researchers, effort put into winning nurse 'buy-in' and identifying and supporting ward-level agents of change
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