Search results for " Opera"
showing 10 items of 3606 documents
Machine learning risk prediction of mortality for patients undergoing surgery with perioperative SARS-CoV-2: the COVIDSurg mortality score
2021
The British journal of surgery 108(11), 1274-1292 (2021). doi:10.1093/bjs/znab183
Las doctrinas militares : la represión política en Tucumán, Argentina (1975-1983)
2019
La represión política que tuvo lugar en la década del 70 en Tucumán, en la región Norte de Argentina, se inicia “legalmente” en febrero de 1975 con el operativo militar decretado por el Poder Ejecutivo Nacional conocido como “Operativo Independencia”. Distintos jefes militares, como parte del Comando de la V Brigada de Infantería, estuvieron a cargo del plan represivo. Cada uno de estos militares fue formado bajo distintas doctrinas militares impartidas al ejército argentino. A través de la identificación y diferenciación de las estrategias militares ejecutadas ?en tanto inteligencia, ocupación del territorio, instalación de centros clandestinos de detención y espacios de inhumación identif…
Towards an integrated approach to emergency management: interdisciplinary challenges for research and practice
2015
This article presents an interdisciplinary vision for large-scale integrated emergency management that has been inspired by the transition from platform centric to integrated operations in the oil and gas fields, which uses remote emergency control centres collaborating virtually with local responders. The article discusses some of the most salient research challenges for integrated emergency management, including the role of mobile technology, human-centred sensing, citizen participation and social media, and the socio-cultural determinants of disaster management. The purpose of this article is to frame an integrated emergency management approach that adopts a multi-disciplinary approach, …
Minimal unit vector fields
2002
We compute the first variation of the functional that assigns each unit vector field the volume of its image in the unit tangent bundle. It is shown that critical points are exactly those vector fields that determine a minimal immersion. We also find a necessary and sufficient condition that a vector field, defined in an open manifold, must fulfill to be minimal, and obtain a simpler equivalent condition when the vector field is Killing. The condition is fulfilled, in particular, by the characteristic vector field of a Sasakian manifold and by Hopf vector fields on spheres.
A WAVELET OPERATOR ON THE INTERVAL IN SOLVING MAXWELL'S EQUATIONS
2011
In this paper, a differential wavelet-based operator defined on an interval is presented and used in evaluating the electromagnetic field described by Maxwell's curl equations, in time domain. The wavelet operator has been generated by using Daubechies wavelets with boundary functions. A spatial differential scheme has been performed and it has been applied in studying electromagnetic phenomena in a lossless medium. The proposed approach has been successfully tested on a bounded axial-symmetric cylindrical domain.
The exterior derivative as a Killing vector field
1996
Among all the homogeneous Riemannian graded metrics on the algebra of differential forms, those for which the exterior derivative is a Killing graded vector field are characterized. It is shown that all of them are odd, and are naturally associated to an underlying smooth Riemannian metric. It is also shown that all of them are Ricci-flat in the graded sense, and have a graded Laplacian operator that annihilates the whole algebra of differential forms.
Customer data collection infrastructure and Customer Experience Management:The SAQ Case Study
2017
Channel integration makes Customer Experience Management more complex and requires from retailers a regeneration of their value proposition. A longitudinal case study reveal a hierarchical sequence of operant resource triad: cultural mindsets, strategic directions for designing value propositions, and a dynamic system of capabilities for continually renewing customer experiences. The implementation of a customer data collection infrastructure, the adoption of an iterative and sequential innovation process, and the mobilization of cross-functional and multidisciplinary project teams, will help develop the firm’s dynamic system of capabilities.
«Siamo italiani! Vogliam cose ispirate!» La stampa italiana dinanzi alla Muette de Portici (1832-1846)
2021
Questo articolo prende in esame l’atteggiamento della stampa italiana nei confronti della Muette de Portici di Auber in occasione di alcune rappresentazioni di quest’opera tra il 1832 – data della prima rappresentazione italiana – ed il 1846. In particolare verranno considerate le prime di Trieste, Venezia e Bologna e gli articoli apparsi su «Censore universale dei teatri», «Gazzetta privilegiata di Venezia» e sul giornale satirico bolognese «La Farfalla».
Use of the KSVM-based system for the definition, validation and identification of the incisional hernia recurrence risk factors
2019
BACKGROUND: Incisional hernia is one of the most common complications after abdominal surgery with an incidence rate of 11 to 20% post laparotomy. Many different factors can be considered as risk factors of incisional hernia recurrence. The aim of this study is to confirm and to validate the incisional hernia recurrence risk factors and to identify and to validate new ones. METHODS: In the period from July 2007 to July 2017, 154 patients were selected and subjected to incisional hernia repair. The surgical operations were conducted under general anaesthesia. Patients received antibiotic prophylaxis when indicated, according to the hospital prophylaxis scheme. Inclusion criteria of the study…
Interprofessional collaboration during an emergency ward’s rounds
2015
Purpose – The purpose of this paper is to explore interprofessional collaboration during ward rounds on a Finnish emergency and infection ward from the viewpoint of three central professional groups: physicians, nurses and secretaries. Design/methodology/approach – The authors utilise an ethnographically informed approach, with observations and interviews as the data collection devices. The data comprise ten interviews with staff members and ten hours of observations. The data were analysed using qualitative thematic analysis. Findings – The ward rounds were found to be rather physician- and medicine-centred, and mostly not interprofessional. Nurses and secretaries in particular expressed …