16 research outputs found
Operation Transition: Post-9/11 Combat Marines Transitioning to Civilian Life and the Role of Higher Education in their Identity Formation
Operation Transition is an excavation of the experiences of Post-9/11 combat Marines, who have been Honorably Discharged, as their transition to civilian and student life. The work of Operation Transition was conducted with a group of Marines, called The Unit, and presents the variety of stories that exist among Veterans, beyond the highly publicized and limiting narratives of Hero, Wounded Warrior, or Killer. The fictive piece represents the experiences of transition that illuminate a civilian privileged higher education system and society-at-large. Operation Transition exemplifies and acknowledges that value of stories for understanding and community building. As such, Operation Transition, which includes critical pedagogy and narrative inquiry, concludes that in order for improvements to be made in higher education, both those in the academy and Veterans need to listen to each otherโs stories, with humility and respect, so they can understand each other, honor each other, and work together to make change
Understanding context in knowledge translation: a concept analysis study protocol
AimTo conduct a concept analysis of clinical practice contexts (work environments) that facilitate or militate against the uptake of research evidence by healthcare professionals in clinical practice. This will involve developing a clear definition of context by describing its features, domains and defining characteristics.BackgroundThe context where clinical care is delivered influences that care. While research shows that context is important to knowledge translation (implementation), we lack conceptual clarity on what is context, which contextual factors probably modify the effect of knowledge translation interventions (and hence should be considered when designing interventions) and which contextual factors themselves could be targeted as part of a knowledge translation intervention (context modification).DesignConcept analysis.MethodsThe Walker and Avant concept analysis method, comprised of eight systematic steps, will be used: (1) concept selection; (2) determination of aims; (3) identification of uses of context; (4) determination of defining attributes of context; (5) identification/construction of a model case of context; (6) identification/construction of additional cases of context; (7) identification/construction of antecedents and consequences of context; and (8) definition of empirical referents of context. This study is funded by the Canadian Institutes of Health Research (January 2014).DiscussionThis study will result in a much needed framework of context for knowledge translation, which identifies specific elements that, if assessed and used to tailor knowledge translation activities, will result in increased research use by nurses and other healthcare professionals in clinical practice, ultimately leading to better patient care.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/111196/1/jan12574.pd
Under pressure: Response urgency modulates striatal and insula activity during decision-making under risk
When deciding whether to bet in situations that involve potential monetary loss or gain (mixed gambles), a subjective sense of pressure can influence the evaluation of the expected utility associated with each choice option. Here, we explored how gambling decisions, their psychophysiological and neural counterparts are modulated by an induced sense of urgency to respond. Urgency influenced decision times and evoked heart rate responses, interacting with the expected value of each gamble. Using functional MRI, we observed that this interaction was associated with changes in the activity of the striatum, a critical region for both reward and choice selection, and within the insula, a region implicated as the substrate of affective feelings arising from interoceptive signals which influence motivational behavior. Our findings bridge current psychophysiological and neurobiological models of value representation and action-programming, identifying the striatum and insular cortex as the key substrates of decision-making under risk and urgency
Identifying the domains of context important to implementation science: a study protocol
Background
There is growing recognition that โcontextโ can and does modify the effects of implementation interventions aimed at increasing healthcare professionalsโ use of research evidence in clinical practice. However, conceptual clarity about what exactly comprises โcontextโ is lacking. The purpose of this research program is to develop, refine, and validate a framework that identifies the key domains of context (and their features) that can facilitate or hinder (1) healthcare professionalsโ use of evidence in clinical practice and (2) the effectiveness of implementation interventions.
Methods/design
A multi-phased investigation of context using mixed methods will be conducted. The first phase is a concept analysis of context using the Walker and Avant method to distinguish between the defining and irrelevant attributes of context. This phase will result in a preliminary framework for context that identifies its important domains and their features according to the published literature. The second phase is a secondary analysis of qualitative data from 13 studies of interviews with 312 healthcare professionals on the perceived barriers and enablers to their application of research evidence in clinical practice. These data will be analyzed inductively using constant comparative analysis. For the third phase, we will conduct semi-structured interviews with key health system stakeholders and change agents to elicit their knowledge and beliefs about the contextual features that influence the effectiveness of implementation interventions and healthcare professionalsโ use of evidence in clinical practice. Results from all three phases will be synthesized using a triangulation protocol to refine the context framework drawn from the concept analysis. The framework will then be assessed for content validity using an iterative Delphi approach with international experts (researchers and health system stakeholders/change agents).
Discussion
This research program will result in a framework that identifies the domains of context and their features that can facilitate or hinder: (1) healthcare professionalsโ use of evidence in clinical practice and (2) the effectiveness of implementation interventions. The framework will increase the conceptual clarity of the term โcontextโ for advancing implementation science, improving healthcare professionalsโ use of evidence in clinical practice, and providing greater understanding of what interventions are likely to be effective in which contexts
Surface rupture of multiple crustal faults in the 2016 Mw 7.8 Kaikลura, New Zealand, earthquake
Multiple (>20
>20
) crustal faults ruptured to the ground surface and seafloor in the 14 November 2016 M w
Mw
7.8 Kaikลura earthquake, and many have been documented in detail, providing an opportunity to understand the factors controlling multifault ruptures, including the role of the subduction interface. We present a summary of the surface ruptures, as well as previous knowledge including paleoseismic data, and use these data and a 3D geological model to calculate cumulative geological moment magnitudes (M G w
MwG
) and seismic moments for comparison with those from geophysical datasets. The earthquake ruptured faults with a wide range of orientations, sense of movement, slip rates, and recurrence intervals, and crossed a tectonic domain boundary, the Hope fault. The maximum net surface displacement was โผ12โโm
โผ12โโm
on the Kekerengu and the Papatea faults, and average displacements for the major faults were 0.7โ1.5 m south of the Hope fault, and 5.5โ6.4 m to the north. M G w
MwG
using two different methods are M G w
MwG
7.7 +0.3 โ0.2
7.7โ0.2+0.3
and the seismic moment is 33%โ67% of geophysical datasets. However, these are minimum values and a best estimate M G w
MwG
incorporating probable larger slip at depth, a 20 km seismogenic depth, and likely listric geometry is M G w
MwG
7.8ยฑ0.2
7.8ยฑ0.2
, suggests โค32%
โค32%
of the moment may be attributed to slip on the subduction interface and/or a midcrustal detachment. Likely factors contributing to multifault rupture in the Kaikลura earthquake include (1) the presence of the subduction interface, (2) physical linkages between faults, (3) rupture of geologically immature faults in the south, and (4) inherited geological structure. The estimated recurrence interval for the Kaikลura earthquake is โฅ5,000โ10,000โโyrs
โฅ5,000โ10,000โโyrs
, and so it is a relatively rare event. Nevertheless, these findings support the need for continued advances in seismic hazard modeling to ensure that they incorporate multifault ruptures that cross tectonic domain boundaries
Genomic assessment of quarantine measures to prevent SARS-CoV-2 importation and transmission
Mitigation of SARS-CoV-2 transmission from international travel is a priority. We evaluated the effectiveness of travellers being required to quarantine for 14-days on return to England in Summer 2020. We identified 4,207 travel-related SARS-CoV-2 cases and their contacts, and identified 827 associated SARS-CoV-2 genomes. Overall, quarantine was associated with a lower rate of contacts, and the impact of quarantine was greatest in the 16โ20 age-group. 186 SARS-CoV-2 genomes were sufficiently unique to identify travel-related clusters. Fewer genomically-linked cases were observed for index cases who returned from countries with quarantine requirement compared to countries with no quarantine requirement. This difference was explained by fewer importation events per identified genome for these cases, as opposed to fewer onward contacts per case. Overall, our study demonstrates that a 14-day quarantine period reduces, but does not completely eliminate, the onward transmission of imported cases, mainly by dissuading travel to countries with a quarantine requirement
Changes in symptomatology, reinfection, and transmissibility associated with the SARS-CoV-2 variant B.1.1.7: an ecological study
Background
The SARS-CoV-2 variant B.1.1.7 was first identified in December, 2020, in England. We aimed to investigate whether increases in the proportion of infections with this variant are associated with differences in symptoms or disease course, reinfection rates, or transmissibility.
Methods
We did an ecological study to examine the association between the regional proportion of infections with the SARS-CoV-2 B.1.1.7 variant and reported symptoms, disease course, rates of reinfection, and transmissibility. Data on types and duration of symptoms were obtained from longitudinal reports from users of the COVID Symptom Study app who reported a positive test for COVID-19 between Sept 28 and Dec 27, 2020 (during which the prevalence of B.1.1.7 increased most notably in parts of the UK). From this dataset, we also estimated the frequency of possible reinfection, defined as the presence of two reported positive tests separated by more than 90 days with a period of reporting no symptoms for more than 7 days before the second positive test. The proportion of SARS-CoV-2 infections with the B.1.1.7 variant across the UK was estimated with use of genomic data from the COVID-19 Genomics UK Consortium and data from Public Health England on spike-gene target failure (a non-specific indicator of the B.1.1.7 variant) in community cases in England. We used linear regression to examine the association between reported symptoms and proportion of B.1.1.7. We assessed the Spearman correlation between the proportion of B.1.1.7 cases and number of reinfections over time, and between the number of positive tests and reinfections. We estimated incidence for B.1.1.7 and previous variants, and compared the effective reproduction number, Rt, for the two incidence estimates.
Findings
From Sept 28 to Dec 27, 2020, positive COVID-19 tests were reported by 36โ920 COVID Symptom Study app users whose region was known and who reported as healthy on app sign-up. We found no changes in reported symptoms or disease duration associated with B.1.1.7. For the same period, possible reinfections were identified in 249 (0ยท7% [95% CI 0ยท6โ0ยท8]) of 36โ509 app users who reported a positive swab test before Oct 1, 2020, but there was no evidence that the frequency of reinfections was higher for the B.1.1.7 variant than for pre-existing variants. Reinfection occurrences were more positively correlated with the overall regional rise in cases (Spearman correlation 0ยท56โ0ยท69 for South East, London, and East of England) than with the regional increase in the proportion of infections with the B.1.1.7 variant (Spearman correlation 0ยท38โ0ยท56 in the same regions), suggesting B.1.1.7 does not substantially alter the risk of reinfection. We found a multiplicative increase in the Rt of B.1.1.7 by a factor of 1ยท35 (95% CI 1ยท02โ1ยท69) relative to pre-existing variants. However, Rt fell below 1 during regional and national lockdowns, even in regions with high proportions of infections with the B.1.1.7 variant.
Interpretation
The lack of change in symptoms identified in this study indicates that existing testing and surveillance infrastructure do not need to change specifically for the B.1.1.7 variant. In addition, given that there was no apparent increase in the reinfection rate, vaccines are likely to remain effective against the B.1.1.7 variant.
Funding
Zoe Global, Department of Health (UK), Wellcome Trust, Engineering and Physical Sciences Research Council (UK), National Institute for Health Research (UK), Medical Research Council (UK), Alzheimer's Society
Genomic epidemiology of SARS-CoV-2 in a UK university identifies dynamics of transmission
AbstractUnderstanding SARS-CoV-2 transmission in higher education settings is important to limit spread between students, and into at-risk populations. In this study, we sequenced 482 SARS-CoV-2 isolates from the University of Cambridge from 5 October to 6 December 2020. We perform a detailed phylogenetic comparison with 972 isolates from the surrounding community, complemented with epidemiological and contact tracing data, to determine transmission dynamics. We observe limited viral introductions into the university; the majority of student cases were linked to a single genetic cluster, likely following social gatherings at a venue outside the university. We identify considerable onward transmission associated with student accommodation and courses; this was effectively contained using local infection control measures and following a national lockdown. Transmission clusters were largely segregated within the university or the community. Our study highlights key determinants of SARS-CoV-2 transmission and effective interventions in a higher education setting that will inform public health policy during pandemics.</jats:p
Hospital admission and emergency care attendance risk for SARS-CoV-2 delta (B.1.617.2) compared with alpha (B.1.1.7) variants of concern: a cohort study
Background:
The SARS-CoV-2 delta (B.1.617.2) variant was first detected in England in March, 2021. It has since rapidly become the predominant lineage, owing to high transmissibility. It is suspected that the delta variant is associated with more severe disease than the previously dominant alpha (B.1.1.7) variant. We aimed to characterise the severity of the delta variant compared with the alpha variant by determining the relative risk of hospital attendance outcomes.
Methods:
This cohort study was done among all patients with COVID-19 in England between March 29 and May 23, 2021, who were identified as being infected with either the alpha or delta SARS-CoV-2 variant through whole-genome sequencing. Individual-level data on these patients were linked to routine health-care datasets on vaccination, emergency care attendance, hospital admission, and mortality (data from Public Health England's Second Generation Surveillance System and COVID-19-associated deaths dataset; the National Immunisation Management System; and NHS Digital Secondary Uses Services and Emergency Care Data Set). The risk for hospital admission and emergency care attendance were compared between patients with sequencing-confirmed delta and alpha variants for the whole cohort and by vaccination status subgroups. Stratified Cox regression was used to adjust for age, sex, ethnicity, deprivation, recent international travel, area of residence, calendar week, and vaccination status.
Findings:
Individual-level data on 43โ338 COVID-19-positive patients (8682 with the delta variant, 34โ656 with the alpha variant; median age 31 years [IQR 17โ43]) were included in our analysis. 196 (2ยท3%) patients with the delta variant versus 764 (2ยท2%) patients with the alpha variant were admitted to hospital within 14 days after the specimen was taken (adjusted hazard ratio [HR] 2ยท26 [95% CI 1ยท32โ3ยท89]). 498 (5ยท7%) patients with the delta variant versus 1448 (4ยท2%) patients with the alpha variant were admitted to hospital or attended emergency care within 14 days (adjusted HR 1ยท45 [1ยท08โ1ยท95]). Most patients were unvaccinated (32โ078 [74ยท0%] across both groups). The HRs for vaccinated patients with the delta variant versus the alpha variant (adjusted HR for hospital admission 1ยท94 [95% CI 0ยท47โ8ยท05] and for hospital admission or emergency care attendance 1ยท58 [0ยท69โ3ยท61]) were similar to the HRs for unvaccinated patients (2ยท32 [1ยท29โ4ยท16] and 1ยท43 [1ยท04โ1ยท97]; p=0ยท82 for both) but the precision for the vaccinated subgroup was low.
Interpretation:
This large national study found a higher hospital admission or emergency care attendance risk for patients with COVID-19 infected with the delta variant compared with the alpha variant. Results suggest that outbreaks of the delta variant in unvaccinated populations might lead to a greater burden on health-care services than the alpha variant.
Funding:
Medical Research Council; UK Research and Innovation; Department of Health and Social Care; and National Institute for Health Research
Evaluation of the mixed communities initiative demonstration projects: initial report: baseline and early process issues
The Mixed Communities Initiative (MCI) was announced in January 2005, as a new and more comprehensive approach to tackling area disadvantage, bringing together housing and neighbourhood renewal strategies to reduce concentrations of deprivation, stimulate economic development and improve public services. This study sets out the baseline position and also captures early process lessons from the Mixed Communities demonstration projects. The findings and recommendations in this report are those of the consultant authors and do not necessarily represent the views or proposed policies of Communities and Local Government