Search results for "Operation"
showing 10 items of 2969 documents
Converging Analysis of the Concept of Strategic Group in the Spanish Lighting Industry
2008
Strategic group literature does not seem to offer strong enough theoretical bases to state the very existence of strategic groups and their effects on firm’s conduct and performance. The empirical validation of the existence of strategic groups has been usually done trying to contrast their predictive validity in relation to performance, obtaining conflicting evidence. Other papers have decided to contrast the convergent validity of the strategic group concept using different definitions and measures of this construct. Our work belongs to the second type of studies. It tries to make progress in the development of a theoretical model, able to state the industry features which affect the prob…
Possible Role of the Posterior Compartment Peritonectomy, as a Part of the Complex Surgery, Regarding Recurrence Rate, Improvement of Symptoms and Fe…
2020
ABSTRACT Study Objective Beside the pain, there are 2 further problems in the management of endometriosis: the high recurrence rate (10% per year) and the high rate of impaired fertility. The objective of this study was to investigate the pathogenesis of these 2 factors. Design This is a retrospective cohort study, and the aim is to evaluate the complete excision of endometriotic lesions, including the posterior compartment of the peritoneum, with regard to postoperative outcome, focusing on relieving pain, increasing fertility rate, and decreasing recurrence rate. Setting Charite-University Clinic, Department of Gynaecology, Endometriosis research Centre. Patients Fifty-four patients were …
Group Buying of Competing Retailers
2010
Under group buying, quantity discounts are offered based on the buyers' aggregated purchasing quantity, instead of individual quantities. As the price decreases with the total quantity, buyers receive lower prices than they otherwise would be able to obtain individually. Previous studies on group buying focus on the benefit buyers receive in reduced acquisition costs or enhanced bargaining power. In this paper, we show that buyers can instead get hurt from such cooperation. Specifically, we consider a two-level distribution channel with a single manufacturer and two retailers who compete for end customers. We show that, under linear demand curves, group buying is always preferable for symme…
Energy efficiency in the European Union: What can be learned from the joint application of directional distance functions and slacks-based measures?
2014
Abstract Over the last few years concerns have increased about the energy mix in many countries. These concerns have been of greater magnitude for countries with a common energy regulation such as European Union (EU) member states. An important aspect to take into account when choosing a given energy mix is the efficiency involved in its generation. In this context, the present study analyzes the efficiency with which electricity and derived heat was produced in 25 EU member states over the last decade. This analysis considers not only the inputs and outputs involved but, more importantly, which undesirable by-products were generated during the production process, a relevant issue for EU cl…
Detection of damage in civil engineering structures by PCA on enviromental vibration data
2018
The dynamic behavior of civil engineering structures are usually studied by means of ambient vibration observations and their performance is analyzed by Peak Picking and/or Operational Modal Analysis methods. This paper reports the first results of a statistical multivariate approach, specifically Principal Component Analysis, to detect a suspected structural damage on a sicilian highway bridge. Furthermore, the damage simulated in a simple structural model made it possible to understand the characteristics of the method consisting in comparing the observed data on an undamaged structure with those coming from a damaged one.
Multicriteria Prioritization for Multistage Implementation of Complex Urban Renewal Projects
2015
Renewal projects on neighborhood scale often include several sub projects aiming at fulfill the different functions of urban areas, while public funds or activated public-private partnership can be insufficient to face the implementation of subprojects simultaneously. Therefore single parts of wider projects are frequently realized at different period of time, according to the availability of public funds or the interest of private partners in the most profitable projects. Although a major organizational effort of funding could be necessary, a more rational approach is required, which will be able to identify the most suitable sequence of realization ensuring the greatest advantage if non c…
Principles for Solving Sequential Multiple Criteria Decision Problems
1983
In this paper a sequential multiple criteria decision problem is studied. The problem arises, when a decision maker is unable to consider all possible decision alternatives simultaneously. If the decision maker evaluates only a subset of all decisions from among which he chooses the most preferred alternative, it is not necessarily 'globally' best. In this context an interesting question is, how good the most preferred alternative is and what the chances are of finding a better solution by considering additional alternatives. The principles of a an approach based on probability theory to solving this problem are described and illustrated with numerical examples.
Contribution of molecular analyses in diagnosing Marfan syndrome and type I fibrillinopathies: an international study of 1009 probands.
2008
International audience; BACKGROUND: The diagnosis of Marfan syndrome (MFS) is usually initially based on clinical criteria according to the number of major and minor systems affected following international nosology. The number of FBN1 mutation carriers, at risk of aortic complications who would not be properly diagnosed based only on clinical grounds, is of growing importance owing to the increased availability of molecular screening. The aim of the study was to identify patients who should be considered for FBN1 mutation screening. METHODS: Our international series included 1009 probands with a known FBN1 mutation. Patients were classified as either fulfilling or not fulfilling "clinical"…
Modeling and 'smart' prototyping human-in-the-loop interactions for AmI environments
2021
[EN] Autonomous capabilities are required in AmI environments in order to adapt systems to new environmental conditions and situations. However, keeping the human in the loop and in control of such systems is still necessary because of the diversity of systems, domains, environments, context situations, and social and legal constraints, which makes full autonomy a utopia within the short or medium term. Human-system integration introduces an important number of challenges and problems that have to be solved. On the one hand, humans should interact with systems even in those situations where their attentional, cognitive, and physical resources are limited in order to perform the interaction.…
The law and the risks of stability and integrity for financial institutions
2011
Purpose – There are ever growing relations and mutual influences between law and global economic context: so, there arises the need for them to be investigated in a legal perspective, which is the aim of this paper.Design/methodology/approach – The method used tries to combine the empirical observation of the legal and economic reality in today's world and a few essential theoretical foundations such as the freedom to dispose of one's rights by wave of contractual instrument.Findings – The dramatic crisis that the global world has had to face over the past few years compels legal scholars to revisiting process of traditional categories in order to adapt them to society's changing problems.R…