147 research outputs found
Flow visualization of shock-boundary layer interaction
Two and three-dimensional shock-boundary layer interaction data were obtained from supersonic wind tunnel tests. These interactions are studied both with and without boundary layer bleed. The data verify computational fluid dynamic codes. Surface static pressure, pitot pressure, flow angularity, and bleed rates, are studied by flow visualization techniques. Surface oil flow using fluorescent dye and laser sheet using water droplets as the scattering material are used for flow visualization
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Withdrawal of Life-Sustaining Therapy in Injured Patients: Variations Between Trauma Centers and Nontrauma Centers
BackgroundâWe sought to identify patient and institutional variables predictive of a
withdrawal of care order (WOCO) in trauma patients. We hypothesized that the frequency of
WOCO would be higher at trauma centers.
MethodsâData from the National Study on the Costs and Outcomes of Trauma (NSCOT) was
used to determine associations between WOCO status and patient characteristics, institutional
characteristics, and hospital course. Chi-square, t-tests and multivariate analysis was used to
identify variables predictive of WOCO.
ResultsâOf 14,190 patients, 618 (4.4%) had WOCO, which accounted for 60.9% of patients
who died in hospital. Age (p=<0.001), race (p=<0.001), co-morbidity (p=<0.001) and injury
mechanism were associated with WOCO (p=0.03). WOCO patients had higher NISS (p=<0.001),
lower GCS motor scores (p=<0.001) and higher incidence of midline shift on head CT (p=0.01).
Trauma center status (OR 1.56 (95% CI 1.06,2.30)) and closed ICU (OR 1.53 (95% CI 1.03,2.25))
were also predictive of WOCO. There was sizeable variation (0 to 16%) in the percentage of
patients with WOCO across centers.
ConclusionâMost trauma patients who die in hospital do so after a WOCO. Although trauma
center status and closed ICU are predictive of WOCO, variation in the percentage of patients with
WOCO across all centers speaks to the complexity of these decisions. Further investigation is
needed to understand how WOCO is applied to trauma patients
Mechanism of injury and special considerations as predictive of serious injury: A systematic review.
Objectives: The Centers for Disease Control and Prevention\u27s field triage guidelines (FTG) are routinely used by emergency medical services personnel for triaging injured patients. The most recent (2011) FTG contains physiologic, anatomic, mechanism, and special consideration steps. Our objective was to systematically review the criteria in the mechanism and special consideration steps that might be predictive of serious injury or need for a trauma center. Methods: We conducted a systematic review of the predictive utility of mechanism and special consideration criteria for predicting serious injury. A research librarian searched in Ovid Medline, EMBASE, and the Cochrane databases for studies published between January 2011 and February 2021. Eligible studies were identified using a priori inclusion and exclusion criteria. Studies were excluded if they lacked an outcome for serious injury, such as measures of resource use, injury severity scores, mortality, or composite measures using a combination of outcomes. Given the heterogeneity in populations, measures, and outcomes, results were synthesized qualitatively focusing on positive likelihood ratios (LR+) whenever these could be calculated from presented data or adjusted odds ratios (aOR
Jack-of-all-trades, master of none: Postgraduate perspectives on interdisciplinary health research in Australia
BACKGROUND: Interdisciplinary health research is increasingly perceived as an expectation of research institutions and funding bodies within Australia. However, little consideration has been given to the extent to which this re-orientation has produced a new type of researcher â an interdisciplinary health researcher. DISCUSSION: As cross-enrolled postgraduate research students, we assert that we do not have an intellectual home. Rather, we must forge a virtual intellectual home through the process of bridging disciplines. In this paper we explain that this virtual home affords us the role of 'interlockers' in future health research. The interlocker role privileges a breadth of understandings across disciplines, rather than a depth in one. SUMMARY: We conclude by reiterating that there is an undeniable need for interdisciplinary health research, and that the roles and actions of interdisciplinary health researchers need to be better understood and catered for. We therefore call for increased consideration and discussion concerning the future roles and capacities of interdisciplinary health researchers such as ourselves
Targeted temperature management for adult out-of-hospital cardiac arrest: current concepts and clinical applications
Manutenção térmica em galinhas domésticas mantidas sob anestesia inalatória com isofluorano
Trauma do pĂąncreas: fatores preditivos de morbidade e mortalidade relacionados a Ăndices de trauma
Vampires in the village Ćœrnovo on the island of KorÄula: following an archival document from the 18th century
SrediĆĄnja tema rada usmjerena je na raĆĄÄlambu spisa pohranjenog u DrĆŸavnom arhivu u Mlecima (fond: Capi del Consiglio deâ Dieci: Lettere di Rettori e di altre cariche) koji se odnosi na dogaÄaj iz 1748. godine u korÄulanskom selu Ćœrnovo, kada su mjeĆĄtani â vjerujuÄi da su se pojavili vampiri â oskvrnuli nekoliko mjesnih grobova. U radu se podrobno iznose osnovni podaci iz spisa te reÄeni dogaÄaj analizira u ĆĄirem druĆĄtvenom kontekstu i prate se lokalna vjerovanja.The main interest of this essay is the analysis of the document from the State Archive in Venice (file: Capi del Consiglio deâ Dieci: Lettere di Rettori e di altre cariche) which is connected with the episode from 1748 when the inhabitants of the village Ćœrnove on the island of KorÄula in Croatia opened tombs on the local cemetery in the fear of the vampires treating.
This essay try to show some social circumstances connected with this event as well as a local vernacular tradition concerning superstitions
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