926 research outputs found
Cultivating Forgiveness and Compassion Through a Mindfulness-based Program for Teachers: Results from Two Field Interventions
The aim of this research was to determine if a mindfulness-training (MT) program for teachers cultivated habits of mind (e.g., mindfulness, emotion regulation, compassion and forgiveness) conducive to effective teaching. Data were gathered in two randomized control trials. Results from pre- to post-test and follow-up showed that MT was associated with increases in mindfulness, efficacy for regulating emotion on the job, and the tendency to forgive others. Linguistic analyses revealed that teachers who underwent MT expressed more positive affect when discussing their most challenging student than those in the waitlist control group. Results warrant further investigation using behavioral-, observational-, and third-person measures of these habits of mind in the target individual
Cultivating Forgiveness and Compassion Through a Mindfulness-based Program for Teachers: Results from Two Field Interventions
The aim of this research was to determine if a mindfulness-training (MT) program for teachers cultivated habits of mind (e.g., mindfulness, emotion regulation, compassion and forgiveness) conducive to effective teaching. Data were gathered in two randomized control trials. Results from pre- to post-test and follow-up showed that MT was associated with increases in mindfulness, efficacy for regulating emotion on the job, and the tendency to forgive others. Linguistic analyses revealed that teachers who underwent MT expressed more positive affect when discussing their most challenging student than those in the waitlist control group. Results warrant further investigation using behavioral-, observational-, and third-person measures of these habits of mind in the target individual
A Prospective Cohort Study Investigating Associations between Hyperemesis Gravidarum and Cognitive, Behavioural and Emotional Well-Being in Pregnancy
Objectives: To investigate the association between hyperemesis gravidarum and altered cognitive, behavioural and emotional well-being in pregnancy. Methods: The study cohort consisted of 3423 nulliparous women recruited in the Screening for Pregnancy Endpoints (SCOPE) study performed in Auckland, New Zealand; Adelaide, Australia; Cork, Ireland; Manchester and London, United Kingdom between November 2004 and August 2008. Women were interviewed at 15±1 weeks' gestation and at 20±1weeks' gestation. Women with a diagnosis of hyperemesis gravidarum (HG) were compared with women who did not have a diagnosis of HG. Main outcome measures included the Short form State- Trait Anxiety Inventory (STAI) score (range 6â24), Perceived Stress Scale score (PSS, range 0â30), Edinburgh Postnatal Depression Scale (EPDS) score (range 0â30 or categories aâc) and behavioural responses to pregnancy score (limiting/resting [range 0â20] and all-or-nothing [range 0â28]). Results: During the study period 164 women suffered from HG prior to their 15 week interview. Women with HG had significantly higher mean STAI, PSS, EPDS and limiting response to pregnancy scores compared to women without HG. These differences were observed at both 15±1 and 20±1 weeks' of gestation. The magnitude of these differences was greater in women with severe HG compared to all women with HG. Women with severe HG had an increased risk of having a spontaneous preterm birth compared with women without HG (adjusted OR 2.6 [95% C.I. 1.2, 5.7]). Conclusion: This is the first large prospective study on women with HG. Women with HG, particularly severe HG, are at increased risk of cognitive, behavioural and emotional dysfunction in pregnancy. Women with severe HG had a higher rate of spontaneous preterm birth compared to women without HG. Further research is required to determine whether the provision of emotional support for women with HG is beneficial.Fergus P. McCarthy, Ali S. Khashan, Robyn A. North, Rona Moss-Morris, Philip N. Baker, Gus Dekker, Lucilla Poston, Louise C. Kenny on behalf of the SCOPE consortiu
Systematic interaction network filtering identifies CRMP1 as a novel suppressor of huntingtin misfolding and neurotoxicity
Assemblies of huntingtin (HTT) fragments with expanded polyglutamine (polyQ) tracts are a pathological hallmark of Huntington's disease (HD). The molecular mechanisms by which these structures are formed and cause neuronal dysfunction and toxicity are poorly understood. Here, we utilized available gene expression data sets of selected brain regions of HD patients and controls for systematic interaction network filtering in order to predict disease-relevant, brain region-specific HTT interaction partners. Starting from a large protein-protein interaction (PPI) data set, a step-by-step computational filtering strategy facilitated the generation of a focused PPI network that directly or indirectly connects 13 proteins potentially dysregulated in HD with the disease protein HTT. This network enabled the discovery of the neuron-specific protein CRMP1 that targets aggregation-prone, N-terminal HTT fragments and suppresses their spontaneous self-assembly into proteotoxic structures in various models of HD. Experimental validation indicates that our network filtering procedure provides a simple but powerful strategy to identify disease-relevant proteins that influence misfolding and aggregation of polyQ disease proteins.DFG [SFB740, 740/2-11, SFB618, 618/3-09, SFB/TRR43 A7]; BMBF(NGFN-Plus) [01GS08169-73, 01GS08150, 01GS08108]; HDSA Coalition for the Cure; EU (EuroSpin) [Health-F2-2009-241498, HEALTH-F2-2009-242167]; Helmholtz Association (MSBN, HelMA) [HA-215]; FCT [IF/00881/2013]info:eu-repo/semantics/publishedVersio
How many mailouts? Could attempts to increase the response rate in the Iraq war cohort study be counterproductive?
<p>Abstract</p> <p>Background</p> <p>Low response and reporting errors are major concerns for survey epidemiologists. However, while nonresponse is commonly investigated, the effects of misclassification are often ignored, possibly because they are hard to quantify. We investigate both sources of bias in a recent study of the effects of deployment to the 2003 Iraq war on the health of UK military personnel, and attempt to determine whether improving response rates by multiple mailouts was associated with increased misclassification error and hence increased bias in the results.</p> <p>Methods</p> <p>Data for 17,162 UK military personnel were used to determine factors related to response and inverse probability weights were used to assess nonresponse bias. The percentages of inconsistent and missing answers to health questions from the 10,234 responders were used as measures of misclassification in a simulation of the 'true' relative risks that would have been observed if misclassification had not been present. Simulated and observed relative risks of multiple physical symptoms and post-traumatic stress disorder (PTSD) were compared across response waves (number of contact attempts).</p> <p>Results</p> <p>Age, rank, gender, ethnic group, enlistment type (regular/reservist) and contact address (military or civilian), but not fitness, were significantly related to response. Weighting for nonresponse had little effect on the relative risks. Of the respondents, 88% had responded by wave 2. Missing answers (total 3%) increased significantly (p < 0.001) between waves 1 and 4 from 2.4% to 7.3%, and the percentage with discrepant answers (total 14%) increased from 12.8% to 16.3% (p = 0.007). However, the adjusted relative risks decreased only slightly from 1.24 to 1.22 for multiple physical symptoms and from 1.12 to 1.09 for PTSD, and showed a similar pattern to those simulated.</p> <p>Conclusion</p> <p>Bias due to nonresponse appears to be small in this study, and increasing the response rates had little effect on the results. Although misclassification is difficult to assess, the results suggest that bias due to reporting errors could be greater than bias caused by nonresponse. Resources might be better spent on improving and validating the data, rather than on increasing the response rate.</p
Marine mineral exploration with controlled source electromagnetics at the TAG Hydrothermal Field, 26°N MidâAtlantic Ridge
Seafloor massive sulfide (SMS) deposits are of increasing economic interest in order to satisfy the relentless growth in worldwide metal demand. The TransâAtlantic Geotraverse (TAG) hydrothermal field at 26°N on the MidâAtlantic Ridge hosts several such deposits. This study presents new controlled source electromagnetic, bathymetric, and magnetic results from the TAG field. Potential SMS targets were selected based on their surface expressions in highâresolution bathymetric data. Highâresolution reducedâtoâtheâpole magnetic data show negative anomalies beneath and surrounding the SMS deposits, revealing large areas of hydrothermal alteration. Controlled source electromagnetic data, sensitive to the electrical conductivity of SMS mineralization, further reveal a maximum thickness of up to 80 m and conductivities of up to 5 S/m. SMS samples have conductivities of up to a few thousand Siemens per meter, suggesting that remotely inferred conductivities represent an average of metal sulfide ores combined with silicified and altered host basalt that likely dominates at greater depths
Among friends:A qualitative exploration of the role of peers in young people's alcohol use using Bourdieuâs concepts of habitus, field and capital
Drinking is viewed by young people as a predominantly social activity which provides an opportunity for entertainment and bonding with friends. Using Bourdieu's concepts of habitus, field and capital, this article explores young people's attitudes and beliefs around alcohol use, influences on behaviour, and the role of peers, with a view to informing the development of preventive interventions. Semi-structured interviews were conducted with 28 young people aged 18â20 in the south west of England. We describe how friends were integral in drinking experiences, and drinking with friends was equated with fun and enjoyment. In this way, the desire for social and symbolic capital appeared to be a key motivator for adolescent drinking. Critically, however, wider cultural norms played the predominant role in shaping behaviour, via the internalisation of widely accepted practice and the subsequent externalisation of norms through the habitus. Applying Bourdieu's theory suggests that population-level interventions that regulate alcohol consumption, and thus disrupt the field, are likely to facilitate behaviour change among young people by driving a response in habitus
Acceleration of global NâO emissions seen from two decades of atmospheric inversion
Nitrous oxide (N2O) is the third most important long-lived GHG and an important stratospheric ozone depleting substance. Agricultural practices and the use of N-fertilizers have greatly enhanced emissions of N2O. Here, we present estimates of N2O emissions determined from three global atmospheric inversion frameworks during the period 1998â2016. We find that global N2O emissions increased substantially from 2009 and at a faster rate than estimated by the IPCC emission factor approach. The regions of East Asia and South America made the largest contributions to the global increase. From the inversion-based emissions, we estimate a global emission factor of 2.3â±â0.6%, which is significantly larger than the IPCC Tier-1 default for combined direct and indirect emissions of 1.375%. The larger emission factor and accelerating emission increase found from the inversions suggest that N2O emission may have a nonlinear response at global and regional scales with high levels of N-input
Control of Transonic Cavity Flow Instability by Streamwise Air Injection
A time-dependent numerical model of a turbulent
Mach 1.5 flow over a rectangular cavity has been developed,
to investigate suppression strategies for its
natural self-sustained instability. This instability adversely
affects the cavity form drag, it produces large-amplitude
pressure oscillations in the enclosure and it
is a source of far-field acoustic radiation.
To suppress the natural flow instability, the leading
edge of the two-dimensional cavity model is fitted with
a simulated air jet that discharges in the downstream
direction. The jet mass flow rate and nozzle depth are
adjusted to attenuate the instability while minimising
the control mass flow rate.
The numerical predictions indicate that, at the selected
inflow conditions, the configurations with the
deepest nozzle (0.75 of the cavity depth) give the most
attenuation of the modelled instability, which is dominated
by the cavity second mode. The jet affects both
the unsteady pressure field and the vorticity distribution
inside the enclosure, which are, together, key
determinants of the cavity leading instability mode
amplitude. The unsteadiness of the pressure field is reduced
by the lifting of the cavity shear layer at the rear
end above the trailing edge. This disrupts the formation
of upstream travelling feed-back pressure waves
and the generation of far-field noise. The deep nozzle
also promotes a downstream bulk flow in the enclosure,
running from the upstream vertical wall to the
downstream one. This flow attenuates the large-scale
clockwise recirculation that is present in the unsuppressed
cavity flow. The same flow alters the top shear
layer vorticity thickness and probably affects the convective
growth of the shear layer cavity second mode
Genetic Variation in the ASTN2 Locus in Cardiovascular, Metabolic and Psychiatric Traits: Evidence for Pleiotropy Rather Than Shared Biology
Background: The link between cardiometabolic and psychiatric illness has long been attributed to human behaviour, however recent research highlights shared biological mechanisms. The ASTN2 locus has been previously implicated in psychiatric and cardiometabolic traits, therefore this study aimed to systematically investigate the genetic architecture of ASTN2 in relation to a wide range of relevant traits. Methods: Baseline questionnaire, assessment and genetic data of 402111 unrelated white British ancestry individuals from the UK Biobank was analysed. Genetic association analyses were conducted using PLINK 1.07, assuming an additive genetic model and adjusting for age, sex, genotyping chip, and population structure. Conditional analyses and linkage disequilibrium assessment were used to determine whether cardiometabolic and psychiatric signals were independent. Results: Associations between genetic variants in the ASTN2 locus and blood pressure, total and central obesity, neuroticism, anhedonia and mood instability were identified. All analyses support the independence of the cardiometabolic traits from the psychiatric traits. In silico analyses provide support for the central obesity signal acting through ASTN2, however most of the other signals are likely acting through other genes in the locus. Conclusions: Our systematic analysis demonstrates that ASTN2 has pleiotropic effects on cardiometabolic and psychiatric traits, rather than contributing to shared pathology
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