Search results for "Operations"

HISTÓRIAS CORPORATIVAS E A IDEIA DA AMÉRICA LATINA

2021

RESUMO O objetivo deste artigo é contribuir para uma grande variedade de perspectivas teóricas e configurações empíricas para gerar evidências cumulativas sobre a influência de legados históricos e capacidade organizacional para gerenciar o passado. Continuando com a perspectiva crítica que desafia o domínio das epistemologias anglo-saxônicas nos estudos de gestão e organização, realizamos um estudo empírico sobre uma companhia aérea multinacional cujos sucessos passados dependiam das fronteiras norte/sul anglo-latino-americanas. Analisamos as grandes narrativas da Pan American Airways (PAA) a partir dos arquivos corporativos da empresa a fim de determinar quais os discursos dominantes acer…

NUEVAS FORMAS DE REPORTING CORPORATIVO: INFORMACIÓN SOBRE LA HUELLA DE CARBONO EN ESPAÑA

2018

RESUMEN A raíz del Protocolo de Kioto, España crea el Registro Nacional de Huella de Carbono, Compensación y Proyectos de Absorción de Dióxido de Carbono mediante el Real Decreto 163/2014. Ello se constituye en una iniciativa pionera para potenciar que las empresas españolas den visibilidad a su compromiso en la reducción de sus emisiones de Gases de Efecto Invernadero (GEI). Bajo este contexto, la presente investigación explora los determinantes de la adhesión al Registro Nacional de Huella de Carbono español. Se realiza un estudio exploratorio de las características de las primeras empresas españolas que decidieron inscribir su huella de carbono, a través de un modelo de regresión logísti…

Regional Economics Tools applied to Sport: New Perspectives

2007

This article shows how some regional economics tools, which are not very well known, can be used in the field of sport. The first part consists of a short summary of the location analysis models. In a second part, we show on a case study, that computable location models can be used to determine the optimal location of sporting facilities in the context of intercommunity. To conclude, some extensions are suggested from a theoretical point of view as well as for empirical applications.

Corrigendum to “Aggregation systems for sales forecasting” [J. Bus. Res. 68(11) (2015) 2299–2304]

2016

Aggregation systems for sales forecasting

2015

Abstract Sales forecasting consists of calculating the expected sales of a specific product or company. An important issue when dealing with sales forecasting is the calculation of the average sales, usually using the arithmetic mean or the weighted average. This study introduces new methods for calculating the average sales. These methods are two modern aggregation operators: the ordered weighted average, and the unified aggregation operator. The main advantage of this approach is the possibility to deal with uncertain and complex environments in a more complete way. The study develops some key examples through multi-person and multi-criteria techniques. The study also presents a numerical…

The effect of high performance work systems on small and medium size enterprises

2015

Abstract This study analyzes the processes that explain high performance work system (HPWS) effect on company performance in small and medium size enterprises (SMEs). This study tests this relationship in SMEs by selecting three high performance work practices (HPWP) and an outcome variable based on the return on investment. A regression model with a sample of 78 companies tests the hypothesis. Results confirm the positive effect of HPWP on the performance of SMEs.

Sensitivity of Estimators for Measuring Information Amount in Web-Based Medical Documents

2018

Nowadays, communication between patient and doctor during an appointment has changed significantly owning to the opportunity that medical portals provide. Whether or not necessarily appreciated by the doctors, the patients became more aware of the first symptoms’ suggesting a particular disease and the medical procedures that apply as a standard. Estimating amount of reliable factual medical information in a document is carried out by parametrizing space of digital documents and dividing it into subsequent layers that represent distribution of the system responses computed as random variables to a query about medical information. Analyzed are the following attributes: dynamism of decrease o…

Constructing a Pareto front approximation for decision making

2011

An approach to constructing a Pareto front approximation to computationally expensive multiobjective optimization problems is developed. The approximation is constructed as a sub-complex of a Delaunay triangulation of a finite set of Pareto optimal outcomes to the problem. The approach is based on the concept of inherent nondominance. Rules for checking the inherent nondominance of complexes are developed and applying the rules is demonstrated with examples. The quality of the approximation is quantified with error estimates. Due to its properties, the Pareto front approximation works as a surrogate to the original problem for decision making with interactive methods. Qc 20120127

Chemically Fueled Block Copolymer Self‐Assembly into Transient Nanoreactors**

2021

In chemically fueled supramolecular materials, molecular self-assembly is coupled to a fuel-driven chemical reaction cycle. The fuel-dependence makes the material dynamic and endows it with exciting properties like adaptivity and autonomy. In contrast to the large work on the self-assembly of small molecules, we herein designed a diblock copolymer, which self assembles into transient micelles when coupled to a fuel-driven chemical reaction cycle. Moreover, we used these transient block copolymer micelles to locally increase the concentration of hydrophobic reagents and thereby function as a transient nanoreactor.

Mechanical and microstructural properties prediction by artificial neural networks in FSW processes of dual phase titanium alloys

2012

Abstract Friction Stir Welding (FSW), as a solid state welding process, seems to be one of the most promising techniques for joining titanium alloys avoiding a large number of difficulties arising from the use of traditional fusion welding processes. In order to pursue cost savings and a time efficient design, the development of numerical simulations of the process can represent a valid choice for engineers. In the paper an artificial neural network was properly trained and linked to an existing 3D FEM model for the FSW of Ti–6Al–4V titanium alloy, with the aim to predict both the microhardness values and the microstructure of the welded butt joints at the varying of the main process parame…