Models Theoretical
Mostrando 1-12 de 1023 artigos, teses e dissertações.
-
1. Mobilizing a pluralist theoretical approach to understand microlending digital platforms: the AfricaMC case
Abstract Purpose This study aims to explore how a microlending digital platform connects social investors in developed countries and micro-entrepreneurs in Africa. However, additional research is necessary to discuss how online auction models are designed and implemented and how existing theories can explain their use in the so-called developing countries.
RAUSP Management Journal. Publicado em: 2022
-
2. Identifying conceptions of the covalent bond: an analysis from a systematic review
The covalent bond is a classical topic in science education because it is fundamental to a considerable number of other concepts and by its ability to interpret several chemical phenomena. However, the process of learning this concept presents some difficulties discussed here. This article brings together the conceptions related to the covalent bond, identif
Química Nova. Publicado em: 2022
-
3. A model for training ultrasound-guided fine-needle punctures
SUMMARY OBJECTIVE: To evaluate the efficacy of a training program in ultrasound-guided fine needle puncture using a cost-effective model. METHODS: We evaluated the training of 20 resident radiology physicians, based on a theoretical course and a practical simulation part with models that focused on the puncture technique of thyroid nodules. The total time
Revista da Associação Médica Brasileira. Publicado em: 2022
-
4. The use of seismic tomography to describe the upper crustal structure beneath the Chalupas Caldera, Ecuador
Abstract The Chalupas Caldera is a rhyolitic volcano located in the Eastern Cordillera to the Southeast of the Cotopaxi Volcano in the Ecuadorian Andes. It is supposedly fed by a huge magmatic chamber below the caldera. For studying the Chalupas magmatic chamber, the tomographic models obtained by a Tarantola-Valette inversion and studied previously in the e
REM, Int. Eng. J.. Publicado em: 2021-06
-
5. The influence of dynamic capabilities on startup growth
Abstract Purpose The purpose of this study is to analyze the relationship between dynamic service innovation capabilities (DSICs) and startup growth in an emerging country. Design/methodology/approach This paper used a theoretical DSIC model to process data on 137 Brazilian startups, using a stepwise regression. Findings Service startup growth is related
RAUSP Manag. J.. Publicado em: 2021-03
-
6. THEORETICAL UNDERSTANDING OF MORPHOLOGICAL DISTRIBUTION OF HYDROGEN IN AMORPHOUS CALCIUM SILICATE HYDRATE
Determining the morphological distribution of hydrogen atoms in calcium silicate hydrate phase (C-S-H) is of great concern but challenging. In this work, based on the stoichiometric composition of (CaO)1.7(SiO2)(H2O)1.8, a series of amorphous Ca1.7•Si•(O)3.7-x•(OH)2x•(H2O)1.8-x models are constructed using Monte Carlo method, where x represents the m
Quím. Nova. Publicado em: 20/07/2020
-
7. Efficiency of electricity distribution companies
Abstract Purpose After assessing papers on efficiency, most of the studies available are focused on the analysis of efficiency measures, without providing a deep discussion of the factors that determine efficiency. This study aims to evaluate the efficiency of Brazilian electricity distribution companies based on a structural model that enables the identifi
RAUSP Manag. J.. Publicado em: 2020-06
-
8. Effects of ownership structure on the mergers and acquisitions decisions in Brazilian firms
Abstract Purpose The purpose of this study is to examine the effects of ownership structure on merger and acquisition (M&A) decisions of Brazilian listed companies. Design/methodology/approach This paper is an applied and explanatory research based on secondary data. The sample is comprises non-financial companies listed on the BM&FBovespa between 1998 and
RAUSP Manag. J.. Publicado em: 2020-06
-
9. Recent Developments on the Elucidation of Colloidal Aspects of Asphaltenes and Their Relevance to Oilfield Problems
Asphaltenes constitute the heavy petroleum fraction responsible for deposition events that may lead to reduced oil production, therefore of great interest for flow assurance. These molecules self-assemble in solutions leading to formation of aggregates that eventually grow towards precipitation and blockages in reservoirs and pipelines. Based on the Yen-Mull
J. Braz. Chem. Soc.. Publicado em: 2020-02
-
10. Brazilian Pediatric Dentistry Behavior Control Model: Report of the Pioneers of the Specialty
Abstract Objective: To analyze the basis on which the behavioral approach model adopted by Brazilian Pediatric Dentistry throughout its history was built. Material and Methods: A semi-structured interview, applied to six pioneering professors in Brazilian Pediatric Dentistry, dealted with the model that followed the line of behavioral control and how this
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
-
11. Memórias e percursos semióticos do lado de Greimas
Resumo O texto sumariza os longos anos de pesquisa efetuadas no contexto da semiótica estrutural de A.J. Greimas para chegar a desenvolver o modelo dinâmico introduzido por R. Thom. Ele sintetiza a contribuição desses modelos explicando como eles permitem desenvolver uma interpretação matemática coerente dos conceitos fundamentais do estruturalismo ta
Galáxia (São Paulo). Publicado em: 20/12/2019
-
12. Atuação de Psicólogas(os) na Escola: Enfrentando Desafios na Proposição de Práticas Críticas
Resumo Este artigo visa contribuir para a discussão e constituição de formas de atuação de psicólogas(os) na escola, que se oponham aos modelos clínicos, medicalizantes e biologizantes por vezes ainda hegemônicos. De natureza teórico-reflexiva, assume os pressupostos teórico-metodológicos da Psicologia Histórico-Cultural, sobretudo os formulados
Psicol. cienc. prof.. Publicado em: 20/12/2019