127 research outputs found
Financial consequences of competitive set choice
This study examines the financial consequences of competitive set choice using a sample of 312 hotels in a major metropolitan area in the United States. We document existence of asymmetric competitor monitoring, finding just 55% of monitoring is reciprocal; that is, about half of managers “agree,” by virtue of monitoring one another, on being direct competitors. Monitoring reciprocity is positively associated with performance through average daily rates. With total revenue unchanged, profits are higher through lower occupancy and lower total costs. We examine alternative competitive sets formed using strategic groups- and customer-based approaches, comparing these to actual compsets. We found that performance declines when managers deviate from these alternative sets. Post-hoc analyses provide insight on how overlapping compsets impact rates, occupancy and revenue. Our study is of value to academics and practitioners, providing evidence on the financial impact of competitive monitoring, and insights for managers who choose competitive sets
Routine Use of Immunosuppressants is Associated with Mortality in Hospitalised Patients with Covid-19
Acknowledgement We acknowledge the dedication, commitment, and sacrifice of the staff from participating centres across UK and Italy, two among the most severely affected countries in Europe. We gratefully acknowledge the contribution of our collaborators, National Institute of Health Research (NIHR), Health Research Authority (HRA) in the UK and Ethics Committee of Policlinico Hospital Modena, which provided rapid approval of COPE study and respective Institutions’ Research and Development Offices and Caldicott Guardians for their assistance and guidance. We also thank COPE Study Sponsor, Cardiff University, Wales, UK.Peer reviewedPublisher PD
The effect of frailty on survival in patients with COVID-19 (COPE) : a multicentre, European, observational cohort study
Peer reviewedPublisher PD
The effect of frailty on survival in patients with COVID-19 (COPE): a multicentre, European, observational cohort study
Background
The COVID-19 pandemic has placed unprecedented strain on health-care systems. Frailty is being used in clinical decision making for patients with COVID-19, yet the prevalence and effect of frailty in people with COVID-19 is not known. In the COVID-19 in Older PEople (COPE) study we aimed to establish the prevalence of frailty in patients with COVID-19 who were admitted to hospital and investigate its association with mortality and duration of hospital stay.
Methods
This was an observational cohort study conducted at ten hospitals in the UK and one in Italy. All adults (≥18 years) admitted to participating hospitals with COVID-19 were included. Patients with incomplete hospital records were excluded. The study analysed routinely generated hospital data for patients with COVID-19. Frailty was assessed by specialist COVID-19 teams using the clinical frailty scale (CFS) and patients were grouped according to their score (1–2=fit; 3–4=vulnerable, but not frail; 5–6=initial signs of frailty but with some degree of independence; and 7–9=severe or very severe frailty). The primary outcome was in-hospital mortality (time from hospital admission to mortality and day-7 mortality).
Findings
Between Feb 27, and April 28, 2020, we enrolled 1564 patients with COVID-19. The median age was 74 years (IQR 61–83); 903 (57·7%) were men and 661 (42·3%) were women; 425 (27·2%) had died at data cutoff (April 28, 2020). 772 (49·4%) were classed as frail (CFS 5–8) and 27 (1·7%) were classed as terminally ill (CFS 9). Compared with CFS 1–2, the adjusted hazard ratios for time from hospital admission to death were 1·55 (95% CI 1·00–2·41) for CFS 3–4, 1·83 (1·15–2·91) for CFS 5–6, and 2·39 (1·50–3·81) for CFS 7–9, and adjusted odds ratios for day-7 mortality were 1·22 (95% CI 0·63–2·38) for CFS 3–4, 1·62 (0·81–3·26) for CFS 5–6, and 3·12 (1·56–6·24) for CFS 7–9.
Interpretation
In a large population of patients admitted to hospital with COVID-19, disease outcomes were better predicted by frailty than either age or comorbidity. Our results support the use of CFS to inform decision making about medical care in adult patients admitted to hospital with COVID-19
The Romantic Socialist Origins of Humanitariamism
“Humanitarian” (humanitaire) came into use in French contemporaneously with the emergence of romantic socialism, and in the context of the rebuilding of post-revolutionary French society and its overseas empire beginning in the 1830s. This article excavates this early idea of humanitarianism, documenting an alternative genealogy for the term and its significance that has been overlooked by scholars of both socialism and humanitarianism. This humanitarianism identified a collective humanity as the source of its own salvation, rather than an external, well-meaning benefactor. Unlike liberal models of advocacy, which invoked individualized actors and recipients of their care, socialists privileged solidarity within their community and rejected the foundational logic of liberal individualism. In tracing this history, this article considers its importance for contemporary debates about humanitarianism’s imperial power dynamics
Energetic electron precipitation driven by electromagnetic ion cyclotron waves from ELFIN's low altitude perspective
We review comprehensive observations of electromagnetic ion cyclotron (EMIC)
wave-driven energetic electron precipitation using data from the energetic
electron detector on the Electron Losses and Fields InvestigatioN (ELFIN)
mission, two polar-orbiting low-altitude spinning CubeSats, measuring 50-5000
keV electrons with good pitch-angle and energy resolution. EMIC wave-driven
precipitation exhibits a distinct signature in energy-spectrograms of the
precipitating-to-trapped flux ratio: peaks at 0.5 MeV which are abrupt (bursty)
with significant substructure (occasionally down to sub-second timescale).
Multiple ELFIN passes over the same MLT sector allow us to study the spatial
and temporal evolution of the EMIC wave - electron interaction region. Using
two years of ELFIN data, we assemble a statistical database of 50 events of
strong EMIC wave-driven precipitation. Most reside at L=5-7 at dusk, while a
smaller subset exists at L=8-12 at post-midnight. The energies of the
peak-precipitation ratio and of the half-peak precipitation ratio (our proxy
for the minimum resonance energy) exhibit an L-shell dependence in good
agreement with theoretical estimates based on prior statistical observations of
EMIC wave power spectra. The precipitation ratio's spectral shape for the most
intense events has an exponential falloff away from the peak (i.e., on either
side of 1.45 MeV). It too agrees well with quasi-linear diffusion theory based
on prior statistics of wave spectra. Sub-MeV electron precipitation observed
concurrently with strong EMIC wave-driven 1MeV precipitation has a spectral
shape that is consistent with efficient pitch-angle scattering down to 200-300
keV by much less intense higher frequency EMIC waves. These results confirm the
critical role of EMIC waves in driving relativistic electron losses. Nonlinear
effects may abound and require further investigation
Increased care at discharge from COVID-19: The association between pre-admission frailty and increased care needs after hospital discharge; a multicentre European observational cohort study
Background:
The COVID-19 pandemic has placed significant pressure on health and social care. Survivors of COVID-19 may be left with substantial functional deficits requiring ongoing care. We aimed to determine whether pre-admission frailty was associated with increased care needs at discharge for patients admitted to hospital with COVID-19.
Methods:
Patients were included if aged over 18 years old and admitted to hospital with COVID-19 between 27 February and 10 June 2020. The Clinical Frailty Scale (CFS) was used to assess pre-admission frailty status. Admission and discharge care levels were recorded. Data were analysed using a mixed-effects logistic regression adjusted for age, sex, smoking status, comorbidities, and admission CRP as a marker of severity of disease.
Results:
Thirteen hospitals included patients: 1671 patients were screened, and 840 were excluded including, 521 patients who died before discharge (31.1%). Of the 831 patients who were discharged, the median age was 71 years (IQR, 58–81 years) and 369 (44.4%) were women. The median length of hospital stay was 12 days (IQR 6–24). Using the CFS, 438 (47.0%) were living with frailty (≥ CFS 5), and 193 (23.2%) required an increase in the level of care provided. Multivariable analysis showed that frailty was associated with an increase in care needs compared to patients without frailty (CFS 1–3). The adjusted odds ratios (aOR) were as follows: CFS 4, 1.99 (0.97–4.11); CFS 5, 3.77 (1.94–7.32); CFS 6, 4.04 (2.09–7.82); CFS 7, 2.16 (1.12–4.20); and CFS 8, 3.19 (1.06–9.56).
Conclusions:
Around a quarter of patients admitted with COVID-19 had increased care needs at discharge. Pre-admission frailty was strongly associated with the need for an increased level of care at discharge. Our results have implications for service planning and public health policy as well as a person's functional outcome, suggesting that frailty screening should be utilised for predictive modelling and early individualised discharge planning
‘Getting the seat of your pants dirty’: space and place in ethnographic educational research
In this paper I consider the importance of space and place in ethnographic educational
research. The paper draws on research that took place at Educational Video Center
(EVC), a non-profit media education centre in New York City (NYC). In this paper I
articulate EVC as a place imbued with meaning from the pedagogical practices that
take place within and regarding it and argue for a consideration of spatiality in
ethnographic educational research. I consider the role of the city landscape in order to
identify how knowledge is emplaced and represented through digital, visual
technology and conclude by outlining the criticality of spatialising our ethnographic
practices
Comparison between first and second wave of COVID-19 outbreak in older people. The COPE multicentre European observational cohort study
Background:
Effective shielding measures and virus mutations have progressively modified the disease between the waves, likewise health care systems have adapted to the outbreak. Our aim was to compare clinical outcomes for older people with COVID-19 in Wave 1 (W1) and 2 (W2).
Methods:
All data, including the Clinical Frailty Scale (CFS), were collected for COVID-19 consecutive patients, aged ≥65, from thirteen hospitals, in W1 (February-June 2020) and W2 (October 2020-March 2021). The primary outcome was mortality (time to mortality and 28-day mortality). Data were analysed with multilevel Cox proportional hazards, linear and logistic regression models, adjusted for wave baseline demographic and clinical characteristics.
Results:
Data from 611 people admitted in W2 were added to and compared with data collected during W1 (N = 1340). Patients admitted in W2 were of similar age, median [IQR], W2 = 79 [73-84]; W1 = 80 [74-86]; had a greater proportion of men (59.4% vs 53.0%); had lower 28-day mortality (29.1% vs 40.0%), compared to W1. For combined W1-W2 sample, W2 was independently associated with improved survival: time-to-mortality aHR= 0.78 (95%CI 0.65-0.93), 28-day mortality aOR = 0.80 (95%CI 0.62-1.03). W2 was associated with increased length of hospital stay aHR = 0.69 (95%CI 0.59-0.81). Patients in W2 were less frail, CFS (adjusted mean difference [aMD]=-0.50, 95%CI -0.81, -0.18), as well as presented with lower CRP (aMD=-22.52, 95%CI -32.00, -13.04).
Conclusions:
COVID-19 older adults in W2 were less likely to die than during W1. Patients presented to hospital during W2 were less frail and with lower disease severity and less likely to have renal decline
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