5 resultados para Inherent chirality

em CiencIPCA - Instituto Politécnico do Cávado e do Ave, Portugal


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The European Union considers it appropriate to further discuss how to strengthen the independence of the auditors to address conflicts of interest inherent in the current scenario, characterized by factors such as the appointment of auditors for the audited company, low turnover or different service delivery to the audit. This paper aims to realize the expectations of the factors that affect, both positively and negatively, the auditor maintains its independence from the client.

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Polymeric materials have become the reference material for high reliability and performance applications. However, their performance in service conditions is difficult to predict, due in large part to their inherent complex morphology, which leads to non-linear and anisotropic behavior, highly dependent on the thermomechanical environment under which it is processed. In this work, a multiscale approach is proposed to investigate the mechanical properties of polymeric-based material under strain. To achieve a better understanding of phenomena occurring at the smaller scales, the coupling of a finite element method (FEM) and molecular dynamics (MD) modeling, in an iterative procedure, was employed, enabling the prediction of the macroscopic constitutive response. As the mechanical response can be related to the local microstructure, which in turn depends on the nano-scale structure, this multiscale approach computes the stress-strain relationship at every analysis point of the macro-structure by detailed modeling of the underlying micro- and meso-scale deformation phenomena. The proposed multiscale approach can enable prediction of properties at the macroscale while taking into consideration phenomena that occur at the mesoscale, thus offering an increased potential accuracy compared to traditional methods.

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The main purpose of performance appraisal in organizations is, or should be, to improve the engagement, learning process and progress of the employees and to align individual with team and organizational performance. However, performance appraisal can also be interpreted as an instrument of normalization, discipline and surveillance. This study thus aims to explore and discuss the complex schema of intrinsic and extrinsic objectives of performance appraisal system of the Portuguese public organizations (SIADAP - Performance Evaluation Integrated System). We have developed an exploratory and qualitative case study to capture appraisers and appraises perceptions. The data were analyzed in light of foucauldian theories. According to the qualitative data, namely the discourses of the appraisers and their subordinates, the SIADAP is seen as an instrument of control and dominance that aims to introduce political rationalities, limiting the career progression of the employees. Though some key points of Foucault’s perspective were identified, foucauldian framework revealed some limitations to capture all the complexity inherent to performance appraisal. This study opens new perspectives about the SIADAP and can be of major importance as far as political reflection about performance appraisal in public organizations is concerned.

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This article intends to understand the motivations, benefits and difficulties inherent to Balanced Scorecard (BSC) adoption in the public sector from the perspective of the professionals who implement it - the management consultants. We chose a qualitative research based on semi-structured interviews with management consultants belonging to consulting companies operating in Portugal, with experience in the implementation of the BSC in the public and private sector. The results allowed concluding that the use of management consultants is advantageous on the BSC adoption. To overcome the difficulties in construction and continuity of the BSC in the public sector, the consultants presented some facilitating conditions that can contribute to the increased efficacy in the adoption and continuation of BSC.

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This article intends to understand the motivations, benefits and difficulties inherent to Balanced Scorecard (BSC) adoption in the public sector from the perspective of the professionals who implement it - the management consultants. We chose a qualitative research based on semi-structured interviews with management consultants belonging to consulting companies operating in Portugal, with experience in the implementation of the BSC in the public and private sector. The results allowed concluding that the use of management consultants is advantageous on the BSC adoption. To overcome the difficulties in construction and continuity of the BSC in the public sector, the consultants presented some facilitating conditions that can contribute to the increased efficacy in the adoption and continuation of BSC.