12,802 research outputs found
Service offshoring in India: general and country specific factors affecting the entry mode
No full textThe 2.5-dimensional turbulence in shear-thinning jets
No full textThe dimensional transition in turbulent jets of a shear-thinning fluid is studied via direct numerical simulations. Our findings reveal that under vertical confinement, the flow exhibits a unique mixed-dimensional (or 2.5-dimensional) state, where large-scale two-dimensional and small-scale three-dimensional structures coexist. This transition from three-dimensional turbulence near the inlet to two-dimensional dynamics downstream is dictated by the level of confinement: weak confinement guarantees turbulence to remain three-dimensional, whereas strong confinement forces the transition to two dimensions; the mixed-dimensional state is observed for moderate confinement and it emerges as soon as flow scales are larger than the vertical length. In this scenario, we observed that the mixed-dimensional state is an overall more energetic state, and it shows a multi-cascade process, where the direct cascade of energy at small scales and the direct cascade of enstrophy at large scales coexist. The results provide insights into the complex dynamics of confined turbulent flows, relevant in both natural and industrial settings
The role of urodynamics in the management of female stress urinary incontinence
No full textAIM:
The role of urodynamic study (UDS) in the management of female stress urinary incontinence (SUI) is one of the most controversial and debated topic in urogynecology. Here, we aimed to systematically assess the most relevant available evidence on urodynamics' value in the management of women with stress urinary incontinence.
METHODS:
A systematic review according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement was performed in May 2018. Only randomized clinical trials, prospective studies, or retrospective studies articles evaluating the use of urodynamic studies in women with stress urinary incontinence were included.
RESULTS:
After screening a total of 3055 records, 39 studies published from 1996 to 2018 were included.
CONCLUSIONS:
In an uncomplicated population of women with SUI, it is not demonstrated that preoperative urodynamic evaluation can improve the outcome of continence surgery; however, UDS provides additional information regarding lower urinary tract function that could guide the physician to make the right therapeutic choice. UDS should be considered mandatory before surgery in complicated patients, but its use should also be evaluated in index patients when the results may help counseling and management of these women
MABS validation through repeated execution and data mining analysis
No full textAgent Based Modelling is the most interesting and advanced approach for simulating a complex system: in a social context, the single parts and the whole are often very hard to describe in detail. Besides, there are agent based formalisms which allow to study the emergency of social behaviour with the creation and study of models, known as artificial societies. Thanks to the ever increasing computational power, it's been possible to use such models to create software, based on intelligent agents, which aggregate behaviour is complex and difficult to predict, and can be used in open and distributed systems. Data mining is born in the last decades in order to help users in finding useful knowledge from the otherwise overwhelming amount of data available nowadays from the web and the data collected every day by companies. Data Mining techniques can therefore be the keystone to reveal non-trivial knowledge expressed by the initial assumption used to build the micro-level of the model and the structure of the society of agents that emerged from the simulation
U/Th dating of a Cladocora caespitosa from Capo S. Marco marine Quaternary deposits (Sardinia, Italy)
No full text""A whole specimen, not reworked and well preserved of Cladocora caespitosa has been found within the marine Quaternary. deposits, outcropping along the eastern coast of the Capo San Marco Promontory. The U\\\/Th dating of this sample has provided a minimum. age of 70 ± 4 ka B.P. This dating allows to state that these marine deposits, containing the coral, are not Holocene in age."
Holocene aggradation/erosion of a tufa dam at Triponzo (central Italy.)
No full textThe 14C dating of organic-rich layers from the backfill sequences of the Triponzo village tufa dam (Tiber River basin) allows us to outline the Holocene aggradation/erosion stages of fluvial tufa in Central Italy. Here,
the deposition of tufa first occurred prior to 8240 ± 75 14C yr BP (7480-
7070 cal bC) and continued, even if with different rates, giving rise to a lacustrine/swampy basin upstream. Since 3760 ± 60 14C yr BP (2350-2010 cal bC) a sequence of alternating periods of dam erosion and aggradation occurred. After 2825 ± 60 14C yr BP (1160-830 cal bC) fluvial incision eventually cut the dam down to the present valley bottom, being only interrupted
by a short-lived phase of dam aggradation which caused the
formation of a strath terraces covered with gravels and tufa sands. A comparable evolution pattern is shown by other tufa dams in Central Italy. This paper deals with the control factors of tufa deposition/erosion during the Holocene with a particular reference to the role of climate changes
Facades of the Libreria di San Marco in Venice, The: An Interpretation of the Design Process
No full text"A new work in which I propose an interpretation of the design process Sansovino used to create the magnificent facades of the Libreria di San Marco in Venice, a masterpiece of Renaissance architecture." Sent to Marquand librarian by author Dec. 202
Art without an Author: Vasari’s Lives and Michelangelo’s Death
No full textMonografia sulla rappresentazione di Michelangelo nelle due edizioni delle Vite, sulla storia del libro e la questione della sua paternitàBook dedicated to the representation of Michelangelo in Vasari's Lives of the Artists, to the history of the book, and to the problem of its authorshi
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