Search results for " Comparative"

Genome-wide association studies identify four ER negative-specific breast cancer risk loci

2013

Estrogen receptor (ER)-negative tumors represent 20-30% of all breast cancers, with a higher proportion occurring in younger women and women of African ancestry. The etiology and clinical behavior of ER-negative tumors are different from those of tumors expressing ER (ER positive), including differences in genetic predisposition. To identify susceptibility loci specific to ER-negative disease, we combined in a metaanalysis 3 genome-wide association studies of 4,193 ER-negative breast cancer cases and 35,194 controls with a series of 40 follow-up studies (6,514 cases and 41,455 controls), genotyped using a custom Illumina array, iCOGS, developed by the Collaborative Oncological Gene-environm…

Análise de divulgação de risco no Relatório Anual de Governança corporativa utilizando fuzzy-set qualitative comparative analysis

2016

ABSTRACT This paper explores the necessary and sufficient conditions of good Corporate Governance practices for high risk disclosure by firms in their Corporate Governance Annual Report. Additionally, we explore whether those recipes have changed during the financial crisis. With a sample of 271 Spanish listed companies, we applied fuzzy-set qualitative comparative analysis to a database of financial and non-financial data. We report that Board of Directors independence, size, level of activity and gender diversity, CEO duality, Audit Committee independence, being audited by the Big Four auditing firms and the presence of institutional investors are associated with high risk disclosure. The…

The relative relationship between education and workplace task discretion: an international comparative perspective

2019

International audience; Through analyses of Programme for the International Assessment of Adult Competencies (PIAAC) data, the following study considers the direct and indirect association between education and workplace task discretion in 30 countries. By focusing on cross-national comparison, it considers the ways in which these findings are dependent on both the overall level and the range of task discretion across occupational sectors within a country. Theoretically, individual-agency and critical-institutional hypotheses are compared, two perspectives that provide divergent explanations for the indirect association between education and task discretion. The findings partially support b…

The influence of leadership styles on the internationalisation of 'born-global' firms and traditionally global-expanding firms

2018

Leadership and internationalisation are both established areas of scientific research, yet their interplay remains insufficiently examined. The present study focuses on the former and aims to shed more light on the intersection of leadership and internationalisation. By utilising fsQCA, a qualitative comparative analysis, to a set of 437 active international firms, results suggest that under distinct conditions transactional as well as transformational leadership can lead to a high level of internationalisation for both traditional internationalising and so-called 'born-global' firms.

Asymmetric modeling of organizational innovation

2015

[EN] This study revisits the theory, data, and analysis in Hervas-Oliver and Sempere-Ripoll (2014) and applies fuzzyset qualitative comparative analysis (fs/QCA) to organizational innovation effects and the influence on them of technological innovations. The influence of technological innovations (product and process) on organizational innovation and its effects is an inconclusive debate. Using fuzzy set comparative qualitative analysis (fs/QCA) on Hervas-Oliver and Sempere-Ripoll’s (2014) 9,369 organizational innovators, the present study offers more complex and nuanced antecedent conditions relating to organizational innovation beyond Hervas-Oliver and Sempere-Ripoll (2014) analysis based…

A first comparative map of copy number variations in the sheep genome.

2011

article i nfo We carried out a cross species cattle-sheep array comparative genome hybridization experiment to identify copy number variations (CNVs) in the sheep genome analysing ewes of Italian dairy or dual-purpose breeds (Bagnolese, Comisana, Laticauda, Massese, Sarda, and Valle del Belice) using a tiling oligonucleotide array with ~385,000 probes designed on the bovine genome. We identified 135 CNV regions (CNVRs; 24 reported in more than one animal) covering ~10.5 Mb of the virtual sheep genome referred to the bovine genome (0.398%) with a mean and a median equal to 77.6 and 55.9 kb, respectively. A comparative analysis between the identified sheep CNVRs and those reported in cattle a…

Régulation des systèmes éducatifs et réussite des élèves de 15 ans : analyse comparative dans les pays anglo-saxons avec PISA 2009

2013

Cette communication a également été présentée le 4 juin 2013 au CIQSS (Centre Interuniversitaire Québécois de Statistiques Sociales); Cette communication présente des résultats de comparaison internationale de la réussite des élèves de 15 ans, dans les pays anglo-saxons, et note l'effet des systèmes de régulation. Elle précise les analyses, notamment en observant les effets selon les niveaux des élèves en mathématiques et en sciences.

PHYLOGENOMIC OF PROSIMIANS: A CLADISTIC APPROACH

2009

Technical and economical comparison between different topologies of PV plant under mismatch effect

2014

This paper presents a technical and economical comparative analysis between two topology of photovoltaic plant. In particular the performances of series-parallel (SP) and total cross tied (TCT), topologies are taken into account, referring to a partially shaded photovoltaic plant. Thanks to a simulation model developed, in the paper the mismatch effects due to three different shading conditions, for SP and TCT topology plant, are quantified. Since the TCT solution, even though increase the energy production, raise the complexity of plants as well as their costs, an evaluation of the individual costs of each component of a SP and TCT plant topology, as PV modules, support structure, inverter…

Derecho de los hijos nacidos por reproducción asistida a conocer la identidad de sus padres biológicos: Breves reflexiones y propuestas

2018

The present communication intends to analyze and reflect on the existing problem and the conflict of rights produced regarding the need of information of a son to know the identity of his biological parents, possible discrimination by birth. Comparative law. Analysis of the right to personal and family privacy, and right to Identity. Consideration of public information as an essential element of the practice of techniques