Search results for "olio"
showing 10 items of 630 documents
A Stochastic Soft Constraints Fuzzy Model for a Portfolio Selection Problem
2006
The financial market behavior is affected by several non-probabilistic factors such as vagueness and ambiguity. In this paper we develop a multistage stochastic soft constraints fuzzy program with recourse in order to capture both uncertainty and imprecision as well as to solve a portfolio management problem. The results we obtained confirm the studies carried out in literature addressed to integrate stochastic and possibilistic programming.
Varadhan estimates without probability: lower bound
2007
We translate in semi-group theory our proof of Varadhan estimates for subelliptic Laplacians which was using the theory of large deviations of Wentzel-Freidlin and the Malliavin Calculus of Bismut type.
A Conditional Value–at–Risk Model for Insurance Products with Guarantee
2009
We propose a model to select the optimal portfolio which underlies insurance policies with a guarantee. The objective function is defined in order to minimise the conditional value at-risk (CVaR) of the distribution of the losses with respect to a target return. We add operational and regulatory constraints to make the model as flexible as possible when used for real applications. We show that the integration of the asset and liability side yields superior performances with respect to naive fixed-mix portfolios and asset based strategies. We validate the model on out-of-sample scenarios and provide insights on policy design.
Designing portfolios of financial products via integrated simulation and optimization models
1999
We analyze the problem of debt issuance through the sale of innovative financial products. The problem is broken down to questions of designing the financial products, specifying the debt structure with the amount issued in each product, and determining an optimal level of financial leverage. We formulate a hierarchical optimization model to integrate these three issues and provide constructive answers. Input data for the models are obtained from Monte Carlo simulation procedures that generate scenarios of holding period returns of the designed products. The hierarchical optimization model is specialized for the problem of issuing a portfolio of callable bonds to fund mortgage assets. The …
Mehrsegmentale Fusion der Skoliose bei Duchenne-Muskeldystrophie
2008
Operations in scoliosis in patients suffering from an advanced stage of Duchenne muscular dystrophy are associated with a higher risk due to the extent of the curves, the respiratory insufficiency and frequent cardiomyopathia. Progressive scolioses in 20 wheelchair patients with an age between 10.5-18.3 years (mean 14.6 years) were treated by CDI. The mean preoperative angle in this group was 70.6 degrees, the postoperative angle 31.2 degrees (mean correction 39.4 degrees or 55.8%). The preoperative lordosis of the lumbar spine (mean angle 4.1 degrees) was corrected to 17.8 degrees postoperatively. The average intraoperative blood loss (2300 ccm) was evident more compared with idiopathic sc…
Can digitisation help overcome linguistic and strategic disadvantages in international media markets? Exploring cross-border business opportunities f…
2018
The media economy and production literature offers insights into the international activities of media companies that provide products in ‘world languages’. Researchers point out that English-language content and, thus, English-language companies have a linguistic advantage and dominate the global media market. In comparison, there is limited knowledge of how companies that originate from non-dominant-language territories expand their activities abroad. This is all the more relevant as digitisation and fragmentation transform markets and new business opportunities arise. Against this background, we ask whether media companies from non-dominant-language markets can benefit from new constell…
Analysis of the conflicts of interest disclosed by the program reviewers of the scoliosis research society (SRS) congresses, 2010-2014.
2018
Background Conflicts of interest (COI) between industry and surgeons frequently introduce biases into surgical research. The abstracts submitted for presentation in scientific congresses are usually vetted for any indication of commercial bias. Members of review program committees regularly have recognized qualifications, and therefore certain COI are unavoidable. This study aims to determine the prevalence and magnitude of possible COI among those responsible for the selection of presentations at two important international conferences on spine surgery during a five-year period. Methodology COI declarations by those responsible for the final programs of the annual SRS (Scoliosis Research S…
IDENTIFICATION OF CAREER MANAGEMENT SKILLS RELATED PROBLEMS IN THE STUDY PROCESS OF PODOLOGISTS
2016
<p>Despite the competencies acquired in study process, results of learning, diploma and provided guidance measures podologs as same as other young specialists often lack skills to create successful proffesional career in their field.</p> <p>At this moment in Latvia, specific proffesion, including podologs, career management skill set is not defined. For students of podology learning of mentioned skills is indirectly integrated in educational process, which is reflected by the study program aims, methods and expected results.The aim of the article is to analyse career management skills identification problems in study process of podologs and in this regard, by empirical res…
Acceptance and validity of the methods used to implement a competency based medical education programme in an Intensive Care Department of a teaching…
2021
Abstract Objectives 1. To determine the satisfaction of tutors and residents with a specific methodology used to implement CoBaTrICE. 2. To determine the reliability and validity of the global rating scales designed ad hoc to assess the performance of the residents for training purposes. Design Prospective cohort study. Participants All the residents and tutors of the ICU Department of the Hospital Universitario y Politecnico la Fe de Valencia. Intervention CoBaTrICE implementation started in March 2016, it was based on: (1) Training the tutors in feedback techniques; (2) Performing multiple objective and structured work based assessments to achieve the competences of the program; and (3) T…
Stimulating teachers’ participation in lifelong training programs
2021
In this paper we will present the main ways to stimulate teacher participation in lifelong education programs, we have conducted during a POCU project, implemented between April 11, 2018 and December 10, 2020. The purpose of this research approach was to demonstrate the role of providing incentives to teachers who participate in continuing education programs. The study started from the general hypothesis that providing the opportunity to obtain some types of incentives contributes to motivating teachers’ participation in continuing education programs, as well as to obtaining very good results in the evaluation process. The research methods used to carry out the research approach were: the s…