Search results for "operation"
showing 10 items of 2969 documents
The effects of using participatory working time scheduling software on working hour characteristics and wellbeing : a quasi-experimental study of irr…
2020
Background: Studies in the health care sector indicate that good work time control is associated with better perceived wellbeing but also with non-ergonomic work schedules, such as compressed work schedules. Participatory working time scheduling is a collaborative approach to scheduling shift work. Currently, there is a lack of information on whether working hour characteristics and employees' wellbeing in irregular shift work change after implementing participatory working time scheduling. Objective: To investigate the effects of using digital participatory working time scheduling software on working hour characteristics and well-being among Finnish hospital employees. Participants and met…
Analog Photonic Fractional Signal Processing
2018
In this work, we provide an up to date overview on the subject of photonic fractional signal processing, including both, in-fiber and waveguide on-chip technology. Thus, we discuss in detail fractional differentiation, fractional integration, fractional Hilbert transforms, and finally, fractional Fourier transforms. In each case, the underlying mathematical principles are explained for each operation, together with a short historical discussion in the context of classical optics. After that, the different proposals to perform these operations photonically on the complex field envelope of a given light pulse are presented, divided according to its working principle. Finally, current applicat…
A new decision model for economic evaluation of novel therapies for HCV
2014
In 2014, the European Medicines Agency (EMA) has given the license to two new direct-acting antiviral: sofosbuvir and simeprevir. The evidence provided by the studies, reported a high rate of SVR even in patients with decompensated cirrhosis. This and other innovative elements are potentially adept at changing the entire natural course of HCV. However, the dramatic prevalence rates of HCV observed in Italy, and the high prices that are expected to be required by the pharmaceutical industry, raises some critical issues about how to regulate access to such drugs. The objective of this article is to present a new decision model for the evaluation of novel therapies for HCV. This model is inten…
Melanoma Extirpation with Immediate Reconstruction
2017
Letter to Editor
Links and Bifurcations in Nonsingular Morse–Smale Systems
1997
Wada's theorem classifies the set of periodic orbits in NMS systems on S3 as links, that can be written in terms of six operations. This characterization allows us to study the topological restrictions that links require to suffer a given codimension one bifurcation. Moreover, these results are reproduced in the case of NMS systems with rotational symmetries, introducing new geometrical tools.
Beilinson Motives and Algebraic K-Theory
2019
Section 12 is a recollection on the basic results of stable homotopy theory of schemes, after Morel and Voevodsky. In particular, we recall the theory of orientations in a motivic cohomology theory. Section 13 is a recollection of the fundamental results on algebraic K-theory which we translate into results within stable homotopy theory of schemes. In particular, Quillen’s localization theorem is seen as an absolute purity theory for the K-theory spectrum. In Section 14, we introduce the fibred category of Beilinson motives as an appropriate Verdier quotient of the motivic stable homotopy category. Using the Adams filtration on K-theory, we prove that Beilinson motives have the properties o…
A teacher-led motor programme to enhance pre-literacy and motor skills in kindergarten children
2020
Structured motor tasks may affect cognitive development by creating a cognitively challenging “enriched environment’, giving opportunity for social cooperation, increasing the joy to learn through play, improving the sense of mastery and competence. The study investigated the association between motor and cognitive exercises, through a teacher-led programme, to provide kindergarten children with the skills necessary for school literacy. Using a cluster-randomized trial design with an intervention group (N = 110) and a control group (N = 64), we examined the effects of a 3-month teacher-led motor programme enriched by executive function tasks. In the intervention group, significant gains wer…
: Difficulties ans risks of interSME cooperation : solutions provided by private-equity firms
2016
L’article analyse les difficultés et risques auxquels font face les petites et moyennes entreprises (PME) lors de la formation de coopérations interfirmes, et les rôles joués par les sociétés de capital-investissement dans leur diminution. Les PME font principalement face à une asymétrie informationnelle et une incertitude accrues en comparaison aux entreprises plus grandes. Les sociétés de capital-investissement permettent de réduire ces deux facteurs et d’instaurer une situation de confiance entre les futurs cocontractants, ce qui évite l’échec de la transaction. Une étude de cas multiples à visée infirmationniste menée sur le marché français du capital-investissement détaille ces princip…
Are social and entrepreneurial attitudes compatible?
2012
PurposeThe aim of this paper is to analyze the compatibility between entrepreneurial and social attitudes. Specifically, it seeks to analyze whether subjects with a more developed economic entrepreneurial attitude exhibit a less social attitude.Design/methodology/approachThe methodology integrates an economic experimental approach with a standard entrepreneurial intention questionnaire to analyze the interaction between entrepreneurial and social self‐perceptions and behavior.FindingsThere is empirical evidence that experimental entrepreneurial behavior (characterized by detecting an opportunity and accepting risk to take an economic advantage from it in laboratory experiments) reduces the …
Spatially segregated transmission of Co-occluded baculoviruses limits virus–virus interactions mediated by cellular coinfection during primary infect…
2022
This article belongs to the Section General Virology.