463 research outputs found
Inside and outside the boardroom: Collaborative practices in the performing arts sector
Collaboration is crucial in the arts sector, where forms of collaborative governance (CG) – the inclusion of private partners in the decision-making process – have been implemented in order to overcome scarcity of resources and to engage with stakeholders. The governance of performing arts organizations today must be based on constant collaboration between public and private entities in order to generate greater value. The purpose of this study is to identify the drivers of CG in performing arts organizations by means of a case study of I Teatri Foundation of Reggio-Emilia, one of the first theatres in Italy to include private partners in governance. The methodology is based on both documentary analysis and interviews. The findings show that CG should be applied at micro and meso levels (inside and outside the boardroom), as both levels contribute to the creation of value for the audience
Inside and outside the boardroom: Collaborative practices in the performing arts sector
Collaboration is crucial in the arts sector, where forms of collaborative governance (CG) – the inclusion of private partners in the decision-making process – have been implemented in order to overcome scarcity of resources and to engage with stakeholders. The governance of performing arts organizations today must be based on constant collaboration between public and private entities in order to generate greater value. The purpose of this study is to identify the drivers of CG in performing arts organizations by means of a case study of I Teatri Foundation of Reggio-Emilia, one of the first theatres in Italy to include private partners in governance. The methodology is based on both documentary analysis and interviews. The findings show that CG should be applied at micro and meso levels (inside and outside the boardroom), as both levels contribute to the creation of value for the audience
Improved microwave imaging procedure for non-destructive evaluations of two-dimensional structures
Improved microwave imaging procedure for nondestructive evaluations of two dimensional structures
Author(s): Caorsi, S (Caorsi, S); Massa, A (Massa, A); Pastorino, M (Pastorino, M); Donelli, M (Donelli, M)
Source: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION Volume: 52 Issue: 6 Pages: 1386-1397 DOI: 10.1109/TAP.2004.830254 Published: JUN 2004
Times Cited: 31 (from Web of Science)
Cited References: 23 [ view related records ] Citation Map
Abstract: An improved microwave procedure for detecting defects in dielectric structures is proposed. The procedure is based on the integral equations of the inverse scattering problem. A hybrid genetic algorithm (GA) is applied in order to minimize the obtained nonlinear functional. Since in nondestructive evaluations the unperturbed object is completely known, it is possible off-line to numerically compute the. Green's function for the configuration without defects. Consequently, a very significant computation saving is obtained, since the "chromosome" of the GA codes only the parameters describing the unknown defect.
Accession Number: WOS:000221857300001
Document Type: Article
Language: English
Author Keywords: genetic algorithms (GAs); Green's function; microwave imaging; nondestructive evaluation (NDE)
KeyWords Plus: GENETIC ALGORITHM; ELECTROMAGNETICS; RECONSTRUCTION
Reprint Address: Caorsi, S (reprint author), Univ Pavia, Dept Elect, Via Palestro 3, I-27100 Pavia, Italy
Addresses:
1. Univ Pavia, Dept Elect, I-27100 Pavia, Italy
E-mail Address: [email protected]
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855 USA
Web of Science Category: Engineering, Electrical & Electronic; Telecommunications
Subject Category: Engineering; Telecommunications
IDS Number: 826VJ
ISSN: 0018-926
Disruptive crisis management: lessons from managing a hospital during the COVID-19 pandemic
Purpose: Healthcare organizations worldwide were badly hit by the “surprise” of the pandemic. Hospitals in particular are trying hard to manage problems it caused, searching for solutions to protect the health of citizens and reorienting operations. The implementation of resilience solutions in the coping phase and the ability to react promptly and redefine activities is essential. Integrating crisis management and resiliency literature, this paper discusses how health organizations were able to cope with adversity during the crisis. Design/methodology/approach: The research is conducted through a case study of a large Italian hospital, the Gemelli Polyclinic Foundation, which was one of the leading hospitals in the Italian response to the pandemic. Findings: The case reports actions taken in order to continue functioning and to maintain core activities despite severe adversity. The overall response of the Gemelli was the result of the three types of response: behavioral (effective leadership), cognitive (rapid resource reallocation) and the contextual reinforcement (multiagency network response). The authors highlight how an integrative framework of crisis management and resiliency could be applied to healthcare organizations in the coping phase of the pandemic. The experience of the Gemelli can thus be useful for other hospitals and organizations facing external crises and for overall improvement of crisis management and resilience. Responding to crisis brings the opportunity to make innovations introduced during emergencies structural, and embed them moving forward. Research limitations/implications: The paper focuses only on the coping phase of the response to the pandemic, whereas building long-term resilience requires understanding how organizations accumulate knowledge from crises and adapt to the “new normal.” Originality/value: The paper responds to the call for empirical studies to advance knowledge of an integrative framework of crisis management and resiliency theories with reference to complex organizations such as healthcare
Balancing artistic and financial performance: is collaborative governance the answer?
Purpose: Opera houses have been traditionally publicly financed in many western countries. However, today many opera houses are facing serious financial troubles, due to the recent financial crisis. There is thus a widespread public debate on measures to ensure agency efficiency for performing arts organizations. Focusing on the reform implemented recently in Italy, which submitted opera houses that had severe financial difficulties to a recovery plan and encouraged forms of collaborative governance (CG), the purpose of this paper is to investigate the impact of CG on the performance of the arts sector. Design/methodology/approach: Multiple case studies are used, on longitudinal data from multiple sources over a period of up to five years, in order to triangulate the narrative of financial and artistic performance and ensure trustworthiness. The study thus spans the period before the Bray Law came into force (2013) and covers the entire period in which recovery plans were implemented. Findings: The analysis explores how opera houses are building sustainability for themselves and the community in terms of financial and artistic performance through CG. Various forms of CG adopted yielded positive results. Furthermore, more robust forms of CG generated better performance, especially from a financial point of view. Originality/value: This paper adds to the limited knowledge of CG in the non-profit sector by bridging the fields of agency performance and CG. It discusses how the introduction of forms of CG can build up long-term sustainability, solving the dilemma of how to achieve financial equilibrium without compromising artistic quality, focusing on the case of opera houses, which are notably affected by Baumol’s cost disease
Multidisciplinary design of a more electric regional aircraft including certification constraints
The use of electrified on-board systems is increasingly more required to reduce aircraft
complexity, polluting emissions, and its life cycle cost. However, the more and all-electric
aircraft configurations are still uncommon in the civil aviation context and their certifiability
has yet to be proven in some aircraft segments. The aim of the present paper is to define a
multidisciplinary design problem which includes some disciplines pertaining to the
certification domain. In particular, the study is focused on the preliminary design of a 19
passengers small regional turboprop aircraft. Different on-board systems architectures with
increasing electrification levels are considered. These architectures imply the use of bleedless
technologies including electrified ice protection and environmental control systems. The use
of electric actuators for secondary surfaces and landing gear are also considered. The aircraft design, which includes aerodynamic, structural, systems and propulsion domains, is then
assessed by some certification disciplines. In particular, minimum performance, external noise
and safety assessments are included in the workflow giving some insights on the aircraft
certifiability. The results show a reduction of 3% of MTOM and 3% of fuel mass depending
on the systems architecture selected. From the certification side, the design has proven to be
certifiable and the margins with the certification constraint can be controlled to improve the
overall design
Missense mutations in the PML/RAR alpha ligand binding domain in ATRA-resistant As2O3 sensitive relapsed acute promyelocytic leukemia
Background and Objectives. Acute promyelocytic leukemia is characterized by the chromosomal translocation t(15;17) which yields the fusion product PML/RAR alpha. Art-trans retinoic acid probably induces differentiation of atypical promyelocytes and clinical remission in APL patients by binding to the ligand binding domain (LBD) of the RAR alpha portion of the PML-RAR alpha chimeric protein. Structural alterations of the LED of the PML/RAR alpha have been revealed in ATRA-resistant APL cell lines and in a few APL patients with acquired clinical resistance to ATRA therapy. Two APL relapsed patients with clinical resistance to ATRA therapy were evaluated for the presence of nucleotide mutations in the LED of PML/RAR alpha gene and then treated with arsenic trioxide (As2O3). Design and Methods. DNA fragments from the LED of the PML/RAR alpha: chimeric transcript were obtained by reverse-transcribed polymerase chain reaction. Direct sequencing was performed by an unambiguous bidirectional automatic analysis. Samples representative of APL onset and relapse were analyzed from both patients. Results. In both patients, at the ATRA-resistant relapse, a missense point mutation in the LED of the PML/RAR alpha gene was found. The mutations, absent at APL onset, led to an Arg272Gln and to an Arg276Trp amino acid substitution, according to the sequence of the RAR alpha protein. Both patients had complete clinical and hematologic remission after treatment with As2O3. Interpretation and Conclusions. LED missense mutations appear to be a significant mechanism of acquired ATRA-resistance in vivo, closely related to clinical APL relapse. The two cases reported here provide the first in vivo evidence of Apt, relapsed patients, who have become ATRA-resistant for molecular reasons, being sensitive to arsenic trioxide
VanA type enterococci from humans, animals and food: species distribution, population structure, Tn1546-typing and location, and virulence determinants
VanA-type human (n = 69), animal (n = 49), and food (n =36) glycopeptide-resistant enterococci (GRE)
from different geographic areas were investigated to study their possible reservoirs and transmission routes.
Pulsed-field gel electrophoresis (PFGE) revealed two small genetically related clusters, M39 (n = 4) and M49
(n = 13), representing Enterococcus faecium isolates from animal and human feces and from clinical and fecal
human samples. Multilocus sequence typing showed that both belonged to the epidemic lineage of CC17. purK
allele analysis of 28 selected isolates revealed that type 1 was prevalent in human strains (8/11) and types 6 and
3 (14/15) were prevalent in poultry (animals and meat). One hundred and five of the 154 VanA GRE isolates,
encompassing different species, origins, and PFGE types, were examined for Tn1546 type and location (plasmid
or chromosome) and the incidence of virulence determinants. Hybridization of S1- and I-CeuI-digested total
DNA revealed a plasmid location in 98% of the isolates. Human intestinal and animal E. faecium isolates bore
large (>150 kb) vanA plasmids. Results of PCR-restriction fragment length polymorphism and sequencing
showed the presence of prototype Tn1546 in 80% of strains and the G-to-T mutation at position 8234 in three
human intestinal and two pork E. faecium isolates. There were no significant associations (P > 0.5) between
Tn1546 type and GRE source or enterococcal species. Virulence determinants were detected in all reservoirs
but were significantly more frequent (P < 0.02) among clinical strains. Multiple determinants were found in
clinical and meat Enterococcus faecalis isolates. The presence of indistinguishable vanA elements (mostly
plasmid borne) and virulence determinants in different species and PFGE-diverse populations in the presence
of host-specific purK housekeeping genes suggested that all GRE might be potential reservoirs of resistance
determinants and virulence traits transferable to human-adapted clusters
Long-term results from MOPPEBVCAD chemotherapy with optional limited radiotherapy in advanced Hodgkin's disease
The purpose was to verify the 5-year results of the MOPPEBVCAD chemotherapy regimen with limited radiotherapy in relation to the promising preliminary data. Mechlorethamine, vincristine, procarbazine, prednisone, epidoxorubicin, bleomycin, vinblastine, lomustine, melphalan, and vindesine were delivered according to a schedule derived through hybridization, intensification, and shortening of the corresponding alternating CAD/MOPP/ABV regimen. Radiotherapy was restricted to sites of bulky involvement or to areas that responded incompletely to chemotherapy. This multicenter, controlled, nonrandomized trial involved 145 eligible patients. Radiotherapy was administered to 47 patients, 46 of whom were in complete remission after chemotherapy. Remissions were complete in 137 patients (94%), partial in 4 (3%), and null in the remaining 4. Tumor-specific, overall, relapse-free, and failure-free survival at 5 years were 0.89, 0.86, 0.82, and 0.78, respectively. Hematologic toxicity was considerable, whereas nonhematologic side effects were fully acceptable. Most of the unfavorable prognostic factors lost their clinical weight. Only age and lymphocyte depletion histologic type were statistically correlated with major follow up endpoints; performance status and bone marrow involvement were subordinate to age. Seven patients developed a second cancer (including 3 myelodysplasias). MOPPEBVCAD with selected radiotherapy is a highly effective regimen in advanced Hodgkin\ub4s disease. Early and late toxicity are no more severe than what would be expected with other alternating or hybrid regimens. A comparison with ABVD, which is currently considered the standard regimen for advanced Hodgkin\ub4s disease, is needed
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