1,165 research outputs found
Giulia Veronica Varisco
No full textThe headword explains the biography and the contribution of the author Giulia Varisco to the children's literatur
Advanced Sealing and dissecting devices in laparoscopic adrenal surgery
No full textObjectives: This study sought to analyze the impact of advanced sealing/dissecting devices on operative and postoperative outcomes in laparoscopic adrenalectomy.
Method: Patients were divided into three groups according to the devices used during their procedures [electro-thermal bipolar vessel system (EBVS), ultrasound shears (US), and monopolar electrocautery (ME)]. A comparison of the perioperative outcomes was performed.
Results: Conversion rates and intraoperative and postoperative complication rates did not differ among the three groups. Major blood loss that required transfusion was registered in only two cases, all of which were performed with ME. Procedures with EBVS were shorter than those with US or ME. For left adrenalectomies only, operative times were similar for US and EBVS. The use of EBVS was found to be an independent predictor of decreased operative time.
Conclusion: The use of advanced sealing devices was associated with reduced operative time, with particular benefits in left adrenalectomy. EBVS and US may provide better hemostasis than ME
“De trop” meta-analyses and systematic reviews in cardiopulmonary resuscitation – A way to rapidly improve authors’ citation index at a price of real science
No full textMeta-analyses and systematic reviews (MSR) have been conceived as tools to summarize evidence on a specific health question. However, in the last years, an exaggerated number of MSRs published by scientific journals has been observed, i.e. 286 MSRs in the field of Resuscitation Science over the last 3 years, i.e. approximately 95 per year. Thus, doubts on the real scientific need of such a high number of MSRs may arise, potentially being only a way to rapidly improve authors' citation index and fame and sometimes the journals' impact factor
Factors influencing outcomes in laparoscopic adrenal surgery.
No full textThis study aims to recognize factors affecting operative and postoperative outcomes in patients undergoing unilateral laparoscopic adrenalectomy performed by using the transabdominal approach.
From a prospectively collected adrenal database, we performed a retrospective analysis of all patients undergoing unilateral adrenalectomy from July 2002 to December 2011. The outcome measures considered were the following: conversion rate, intra- and postoperative complications, duration of surgery, length of hospital stay, and return-to-work time. Demographic data, American Society of Anesthesiologists score, characteristics of adrenal tumor, and operative and postoperative variables were analyzed to assess their influence on the outcome variables.
A total of 163 laparoscopic adrenalectomies were included. Intraoperative complications, conversion to laparotomy, and postoperative complications were observed in 6.7, 6.1, and 1.8 % of cases, respectively. Conversion to open surgery, intraoperative complications, metastasis, and pheochromocytoma were found to be predictive factors for operative time of > 140 min. An operative duration of > 140 min was associated with intraoperative complications. Tumor size, intraoperative complications, and adrenalectomy for metastasis significantly increased conversion rate. Hospital stay was extended by operative time of > 140 min, conversion to laparotomy, and postoperative complications.
Our study highlights that simple clinical variables, long procedures, and operative complications have a negative impact on procedural outcomes. Based on this, it may be possible to predict cases requiring collaboration with experienced surgeons in order to minimize perioperative morbidity
Cardiac arrest and medical technological innovations in the next decade: How about artificial intelligence-assisted tailored cardiopulmonary resuscitation?
No full textYtterbium Disilicate/Monosilicate Multilayer Environmental Barrier Coatings: Influence of Atmospheric Plasma Spray Parameters on Composition and Microstructure
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Ytterbium Disilicate/Monosilicate Multilayer Environmental Barrier Coatings: Influence of Atmospheric Plasma Spray Parameters on Composition and Microstructure
by Giulia Di Iorio,Laura Paglia *ORCID,Giulia PedrizzettiORCID,Virgilio GenovaORCID,Francesco MarraORCID,Cecilia BartuliORCID andGiovanni PulciORCID
INSTM Reference Laboratory for Materials and Surface Engineering, Sapienza University of Rome, Eudossiana 18, 00184 Rome, Italy
*
Author to whom correspondence should be addressed.
Coatings 2023, 13(9), 1602; https://doi.org/10.3390/coatings13091602
Original submission received: 10 August 2023 / Revised: 31 August 2023 / Accepted: 11 September 2023 / Published: 13 September 2023
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Abstract
SiC/SiC ceramic matrix composites (SiCf/SiC CMCs) are regarded as the new materials for the hot-section components of aircraft gas turbine engines, since they have one-third of the density of metallic superalloys, a higher temperature capability, good mechanical strength, and excellent thermal shock resistance. However, high-temperature water-vapor-rich combustion gases can induce severe surface recession phenomena in SiC/SiC leading to component failure. For this reason, it is necessary to design protective coatings, i.e., environmental barrier coatings (EBCs), able to protect the SiC/SiC surface in combustion environments. In the present work, ytterbium monosilicate (Yb2SiO5), stable when exposed to water vapor at high temperatures, and ytterbium disilicate (Yb2Si2O7), characterized by a thermal expansion coefficient closer to that of the substrate, were selected for a multilayer EBC system. EBCs were processed using the atmospheric plasma spray (APS) technique. A set of deposition parameters were tested, varying the power of the torch, and the composition and microstructure of the deposited coatings were studied in terms of porosity, crack density, and post-deposition phase retention by performing SEM, EDS, and XRD analysis. The results allow for the definition of the influence of deposition parameters on the final properties of multilayer EBC coatings
Correction to: Safety and Psychological Outcomes of Tandem t:Slim X2 Insulin Pump with Control-IQ Technology in Children, Adolescents, and Young Adults with Type 1 Diabetes: A Systematic Review
No full textThe second author name was incorrectly published as Giula Maria Smylie. The correct name is Giulia Marie Smylie. The original article has been corrected
Scrivere senza anestesia. La chiarezza di Giulia Niccolai
No full textIl saggio colloca storicamente la narratrice e poetessa Giulia Niccolai nel canone del Novecento letterario italiano discutendone poetica e cifre stilistiche. L'ampia analisi proposta tocca tutte le opere dell'autrice evidenziandone i legami intertestuali, anche tra poesia e narrativa, e i progressivi sviluppi in un arco cronologico esteso, tra anni Sessanta e primi anni Duemila. Lo studio coglie anche l'importanza dei riferimenti alle arti visive, in particolare alla fotografia, che Giulia Niccolai ha praticato in prima persona negli anni della Neoavanguardia, e alla pittura americana.The essay places the narrator and poet Giulia Niccolai in the canonical twentieth century Italian literary discussing her poetics and stylistic figures. The wide analysis proposed touches all the works of the author highlighting the intertextual links, also between poetry and narrative, and the progressive developments in an extended chronological period, between the Sixties and early Twenties. The study also captures the importance of references to the visual arts, especially photography, which Giulia Niccolai has practiced in the years of the Neo-avant-garde, and to American painting
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L'afrofuturismo tra Stati Uniti e Italia. Dalla memoria storica ai viaggi intergalattici per re-immaginare futuri postumani
No full textIn this article the author explores the cultural movement called Afrofuturism, tracing its origins, features, simbology, and its historical and political meanings. Starting from the (supposed) discoursive gap between African and African American people on one side and technology and science fiction on the other, this paradigm addresses themes related to the intersection of African Diaspora and African cultures with technology and science fiction, with the aim to recover the history of slavery and racism through the projections into alternative space-time contexts. In particular, the author explores the feminist afrofuturism perspective in order to examine the specific oppression and cultural production of African and African American women. In doing so, the author analyzes the development of afrofuturism in Italy, focusing on the work of the singer and beatmaker Karima 2G
BDC-Decomposition for global influence analysis
No full textIn biochemical networks, the steady-state input-output influence is the sign of the output steady-state variation due to a persistent positive input perturbation; if the sign does not depend on the value of the strictly positive system parameters, the influence is structural. As recently shown for small perturbations, when the linearized system approximation is valid, steady-state input-output influences can be structurally assessed, for biochemical networks with m unknown parameters, by means of a vertex algorithm with complexity 2m. This letter shows that the structural input-output influence of a biochemical network is a global property, which does not require any small-perturbation assumption. It also shows that, using a new algorithm, the complexity can be reduced down to 2m-n , where n is the system order, thus drastically reducing the computation time. Finally, when the uncertain parameters belong to known intervals, non-conservative bounds are given for the steady-state ratio between output and input, allowing for sensitivity analysis.Accepted Author ManuscriptTeam Tamas Keviczk
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